support AllowIPs for peers in server config (#24)

use LDAP filter strings

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,67 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ master ]
+  schedule:
+    - cron: '35 15 * * 4'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'go', 'javascript' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
+        # Learn more:
+        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1

.gitignore

@@ -32,3 +32,5 @@ ssh.key
 .testCoverage.txt
 wg_portal.db
 go.sum
+swagger.json
+swagger.yaml

.travis.yml

@@ -1,4 +1,43 @@
 language: go
-
+dist: bionic
+sudo: required
 go:
-  - 1.15.x
+  - 1.16.x # Latest go version
+env:
+  - GO111MODULE=on
+addons:
+  apt:
+    packages:
+      - gcc-multilib
+
+before_install:
+  - # skip
+
+install:
+  - # skip
+
+script:
+  - go get -t -v ./...
+  - diff -u <(echo -n) <(gofmt -d .)
+  - go vet $(go list ./... | grep -v /vendor/)
+  - make ENV_BUILD_IDENTIFIER=$TRAVIS_TAG ENV_BUILD_VERSION=$(echo $TRAVIS_COMMIT | cut -c1-7) build
+  # Switch over GCC to cross compilation (breaks 386, hence why do it here only)
+  - sudo -E apt-get -yq --no-install-suggests --no-install-recommends --force-yes install gcc-arm-linux-gnueabi libc6-dev-armel-cross gcc-arm-linux-gnueabihf libc6-dev-armhf-cross gcc-aarch64-linux-gnu libc6-dev-arm64-cross
+  - sudo ln -s /usr/include/asm-generic /usr/include/asm
+  - make ENV_BUILD_IDENTIFIER=$TRAVIS_TAG ENV_BUILD_VERSION=$(echo $TRAVIS_COMMIT | cut -c1-7) build-cross-plat
+
+deploy:
+  provider: releases
+  skip_cleanup: true # Important, otherwise the build output would be purged.
+  api_key:
+    # *encrypted* GitHub key, as the output of the Travis CI CLI tool
+    secure: "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"
+  file:
+    - dist/wg-portal-amd64
+    - dist/wg-portal-arm64
+    - dist/wg-portal-arm
+    - dist/wg-portal.env
+    - dist/wg-portal.service
+  on:
+    repo: h44z/wg-portal
+    tags: true # The deployment happens only if the commit has a tag.

Dockerfile

@@ -4,7 +4,13 @@
 ######-
 # Start from the latest golang base image as builder image (only used to compile the code)
 ######-
-FROM golang:1.15 as builder
+FROM golang:1.16 as builder
+
+ARG BUILD_IDENTIFIER
+ENV ENV_BUILD_IDENTIFIER=$BUILD_IDENTIFIER
+
+ARG BUILD_VERSION
+ENV ENV_BUILD_VERSION=$BUILD_VERSION
 
 RUN mkdir /build
 
@@ -17,29 +23,32 @@ WORKDIR /build
 # Workaround for failing travis-ci builds
 RUN rm -rf ~/go; rm -rf go.sum
 
+# Download dependencies
+RUN curl -L https://git.prolicht.digital/pub/healthcheck/-/releases/v1.0.1/downloads/binaries/hc -o /build/hc; \
+    chmod +rx /build/hc; \
+    echo "Building version: $ENV_BUILD_IDENTIFIER-$ENV_BUILD_VERSION"
+
 # Build the Go app
-RUN go clean -modcache; go mod tidy; make build
+RUN go clean -modcache; go mod tidy; make build-docker
 
 ######-
 # Here starts the main image
 ######-
-FROM debian:buster
+FROM scratch
 
 # Setup timezone
 ENV TZ=Europe/Vienna
 
-# GOSS for container health checks
-ENV GOSS_VERSION v0.3.14
-RUN apt-get update && apt-get upgrade -y && \
-        apt-get install --no-install-recommends -y moreutils ca-certificates curl && \
-        rm -rf /var/cache/apt /var/lib/apt/lists/*; \
-        curl -L https://github.com/aelsabbahy/goss/releases/download/$GOSS_VERSION/goss-linux-amd64 -o /usr/local/bin/goss && \
-        chmod +rx /usr/local/bin/goss && \
-        goss --version
+# Import linux stuff from builder.
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=builder /etc/passwd /etc/passwd
+COPY --from=builder /etc/group /etc/group
 
-COPY --from=builder /build/dist/wg-portal-amd64 /app/wgportal
-COPY --from=builder /build/dist/assets /app/assets
-COPY --from=builder /build/scripts /app/
+# Import healthcheck binary
+COPY --from=builder /build/hc /app/hc
+
+# Copy binaries
+COPY --from=builder /build/dist/wgportal /app/wgportal
 
 # Set the Current Working Directory inside the container
 WORKDIR /app
@@ -47,5 +56,4 @@ WORKDIR /app
 # Command to run the executable
 CMD [ "/app/wgportal" ]
 
-HEALTHCHECK --interval=1m --timeout=10s \
-    CMD /app/docker-healthcheck.sh
+HEALTHCHECK --interval=30s --timeout=5s --start-period=30s --retries=3 CMD [ "/app/hc", "http://localhost:11223/health" ]

Makefile

@@ -11,15 +11,16 @@ IMAGE=h44z/wg-portal
 all: dep build
 
 build: dep $(addsuffix -amd64,$(addprefix $(BUILDDIR)/,$(BINARIES)))
-	cp -r assets $(BUILDDIR)
 	cp scripts/wg-portal.service $(BUILDDIR)
 	cp scripts/wg-portal.env $(BUILDDIR)
 
 build-cross-plat: dep build $(addsuffix -arm,$(addprefix $(BUILDDIR)/,$(BINARIES))) $(addsuffix -arm64,$(addprefix $(BUILDDIR)/,$(BINARIES)))
-	cp -r assets $(BUILDDIR)
 	cp scripts/wg-portal.service $(BUILDDIR)
 	cp scripts/wg-portal.env $(BUILDDIR)
 
+build-docker: dep
+	CGO_ENABLED=1 GOOS=linux GOARCH=amd64 $(GOCMD) build -o $(BUILDDIR)/wgportal -ldflags "-w -s -linkmode external -extldflags \"-static\" -X github.com/h44z/wg-portal/internal/server.Version=${ENV_BUILD_IDENTIFIER}-${ENV_BUILD_VERSION}" -tags netgo cmd/wg-portal/main.go
+
 dep:
 	$(GOCMD) mod download
 
@@ -50,13 +51,17 @@ docker-build:
 docker-push:
 	docker push $(IMAGE)
 
+api-docs:
+	cd internal/server; swag init --parseDependency --parseInternal --generalInfo api.go
+	$(GOCMD) fmt internal/server/docs/docs.go
+
 $(BUILDDIR)/%-amd64: cmd/%/main.go dep phony
-	GOOS=linux GOARCH=amd64 $(GOCMD) build -o $@ $<
+	GOOS=linux GOARCH=amd64 $(GOCMD) build -ldflags "-X github.com/h44z/wg-portal/internal/server.Version=${ENV_BUILD_IDENTIFIER}-${ENV_BUILD_VERSION}" -o $@ $<
 
 # On arch-linux install aarch64-linux-gnu-gcc to crosscompile for arm64
 $(BUILDDIR)/%-arm64: cmd/%/main.go dep phony
-	CGO_ENABLED=1 CC=aarch64-linux-gnu-gcc GOOS=linux GOARCH=arm64 $(GOCMD) build -ldflags "-linkmode external -extldflags -static" -o $@ $<
+	CGO_ENABLED=1 CC=aarch64-linux-gnu-gcc GOOS=linux GOARCH=arm64 $(GOCMD) build -ldflags "-linkmode external -extldflags \"-static\" -X github.com/h44z/wg-portal/internal/server.Version=${ENV_BUILD_IDENTIFIER}-${ENV_BUILD_VERSION}" -o $@ $<
 
 # On arch-linux install arm-linux-gnueabihf-gcc to crosscompile for arm
 $(BUILDDIR)/%-arm: cmd/%/main.go dep phony
-	CGO_ENABLED=1 CC=arm-linux-gnueabihf-gcc GOOS=linux GOARCH=arm GOARM=7 $(GOCMD) build -ldflags "-linkmode external -extldflags -static" -o $@ $<
+	CGO_ENABLED=1 CC=arm-linux-gnueabi-gcc GOOS=linux GOARCH=arm GOARM=7 $(GOCMD) build -ldflags "-linkmode external -extldflags \"-static\" -X github.com/h44z/wg-portal/internal/server.Version=${ENV_BUILD_IDENTIFIER}-${ENV_BUILD_VERSION}" -o $@ $<

README-RASPBERRYPI.md

@@ -10,7 +10,7 @@ use the following instructions:
 ### Building
 This section describes how to build the WireGuard Portal code.
 To compile the final binary, use the Makefile provided in the repository.
-As WireGuard Portal is written in Go, **golang >= 1.14** must be installed prior to building.
+As WireGuard Portal is written in Go, **golang >= 1.16** must be installed prior to building.
 
 ```
 make build-cross-plat

README.md

@@ -3,17 +3,18 @@
 [![Build Status](https://travis-ci.com/h44z/wg-portal.svg?token=q4pSqaqT58Jzpxdx62xk&branch=master)](https://travis-ci.com/h44z/wg-portal)
 [![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://opensource.org/licenses/MIT)
 ![GitHub last commit](https://img.shields.io/github/last-commit/h44z/wg-portal)
+[![Go Report Card](https://goreportcard.com/badge/github.com/h44z/wg-portal)](https://goreportcard.com/report/github.com/h44z/wg-portal)
 ![GitHub go.mod Go version](https://img.shields.io/github/go-mod/go-version/h44z/wg-portal)
 ![GitHub code size in bytes](https://img.shields.io/github/languages/code-size/h44z/wg-portal)
+[![Docker Pulls](https://img.shields.io/docker/pulls/h44z/wg-portal.svg)](https://hub.docker.com/r/h44z/wg-portal/)
 
-A simple web base configuration portal for [WireGuard](https://wireguard.com). 
-The portal uses the WireGuard [wgctrl](https://github.com/WireGuard/wgctrl-go) library to manage the VPN 
-interface. This allows for seamless activation or deactivation of new users, without disturbing existing VPN 
+A simple, web based configuration portal for [WireGuard](https://wireguard.com). 
+The portal uses the WireGuard [wgctrl](https://github.com/WireGuard/wgctrl-go) library to manage existing VPN 
+interfaces. This allows for seamless activation or deactivation of new users, without disturbing existing VPN 
 connections.
 
-The configuration portal is designed to use LDAP (Active Directory) as a user source for authentication and profile data.
-It still can be used without LDAP by using a predefined administrator account. Some features like mass creation of accounts 
-will only be available in combination with LDAP.
+The configuration portal currently supports using SQLite and MySQL as a user source for authentication and profile data.
+It also supports LDAP (Active Directory or OpenLDAP) as authentication provider.
 
 ## Features
  * Self-hosted and web based
@@ -23,18 +24,26 @@ will only be available in combination with LDAP.
  * Enable / Disable clients seamlessly
  * Generation of `wgX.conf` after any modification
  * IPv6 ready
- * User authentication (LDAP and/or predefined admin account)
+ * User authentication (SQLite/MySQL and LDAP)
  * Dockerized
  * Responsive template
+ * One single binary
+ * Can be used with existing WireGuard setups
+ * Support for multiple WireGuard interfaces
+ * REST API for management and client deployment
  
 ![Screenshot](screenshot.png)
 
 ## Setup
+Make sure that your host system has at least one WireGuard interface (for example wg0) available. 
+If you did not start up a WireGuard interface yet, take a look at [wg-quick](https://manpages.debian.org/unstable/wireguard-tools/wg-quick.8.en.html) in order to get started.
 
 ### Docker
-The easiest way to run WireGuard Portal is using the provided docker image.
+The easiest way to run WireGuard Portal is to use the Docker image provided.
 
-Docker compose snippet with sample values:
+HINT: the *latest* tag always refers to the master branch and might contain unstable or incompatible code!
+
+Docker Compose snippet with some sample configuration values:
 ```
 version: '3.6'
 services:
@@ -51,23 +60,31 @@ services:
     ports:
       - '8123:8123'
     environment:
+      # WireGuard Settings
+      - WG_DEVICES=wg0
+      - WG_DEFAULT_DEVICE=wg0
+      - WG_CONFIG_PATH=/etc/wireguard
+      # Core Settings
       - EXTERNAL_URL=https://vpn.company.com
       - WEBSITE_TITLE=WireGuard VPN
       - COMPANY_NAME=Your Company Name
-      - MAIL_FROM=WireGuard VPN <noreply+wireguard@company.com>
-      - ADMIN_USER=admin  # optional admin user
+      - ADMIN_USER=admin@domain.com
       - ADMIN_PASS=supersecret
-      - ADMIN_LDAP_GROUP=CN=WireGuardAdmins,OU=Users,DC=COMPANY,DC=LOCAL
+      # Mail Settings
+      - MAIL_FROM=WireGuard VPN <noreply+wireguard@company.com>
       - EMAIL_HOST=10.10.10.10
       - EMAIL_PORT=25
+      # LDAP Settings
+      - LDAP_ENABLED=true
       - LDAP_URL=ldap://srv-ad01.company.local:389
       - LDAP_BASEDN=DC=COMPANY,DC=LOCAL
       - LDAP_USER=ldap_wireguard@company.local
       - LDAP_PASSWORD=supersecretldappassword
+      - LDAP_ADMIN_GROUP=CN=WireGuardAdmins,OU=Users,DC=COMPANY,DC=LOCAL
 ```
 Please note that mapping ```/etc/wireguard``` to ```/etc/wireguard``` inside the docker, will erase your host's current configuration.
 If needed, please make sure to back up your files from ```/etc/wireguard```.
-For a full list of configuration options take a look at the source file [internal/common/configuration.go](internal/common/configuration.go).
+For a full list of configuration options take a look at the source file [internal/server/configuration.go](internal/server/configuration.go#L56).
 
 ### Standalone
 For a standalone application, use the Makefile provided in the repository to build the application.
@@ -79,13 +96,116 @@ make
 make build-cross-plat
 ```
 
-The compiled binary and all necessary assets will be located in the dist folder.
+The compiled binary will be located in the dist folder.
 A detailed description for using this software with a raspberry pi can be found in the [README-RASPBERRYPI.md](README-RASPBERRYPI.md).
 
-## What is out of scope
+## Configuration
+You can configure WireGuard Portal using either environment variables or a yaml configuration file.
+The filepath of the yaml configuration file defaults to **config.yml** in the working directory of the executable.
+It is possible to override the configuration filepath using the environment variable **CONFIG_FILE**.
+For example: `CONFIG_FILE=/home/test/config.yml ./wg-portal-amd64`.
 
- * Generation or application of any `iptables` or `nftables` rules
- * Setting up or changing IP-addresses of the WireGuard interface on operating systems other than linux
+### Configuration Options
+The following configuration options are available:
+
+| environment           | yaml              | yaml_parent | default_value                                   | description                                                                                                                          |
+|-----------------------|-------------------|-------------|-------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------|
+| LISTENING_ADDRESS     | listeningAddress  | core        | :8123                                           | The address on which the web server is listening. Optional IP address and port, e.g.: 127.0.0.1:8080.                                |
+| EXTERNAL_URL          | externalUrl       | core        | http://localhost:8123                           | The external URL where the web server is reachable. This link is used in emails that are created by the WireGuard Portal.            |
+| WEBSITE_TITLE         | title             | core        | WireGuard VPN                                   | The website title.                                                                                                                   |
+| COMPANY_NAME          | company           | core        | WireGuard Portal                                | The company name (for branding).                                                                                                     |
+| MAIL_FROM             | mailFrom          | core        | WireGuard VPN <noreply@company.com>             | The email address from which emails are sent.                                                                                        |
+| ADMIN_USER            | adminUser         | core        | admin@wgportal.local                            | The administrator user. Must be a valid email address.                                                                               |
+| ADMIN_PASS            | adminPass         | core        | wgportal                                        | The administrator password. If unchanged, a random password will be set on first startup.                                            |
+| EDITABLE_KEYS         | editableKeys      | core        | true                                            | Allow to edit key-pairs in the UI.                                                                                                   |
+| CREATE_DEFAULT_PEER   | createDefaultPeer | core        | false                                           | If an LDAP user logs in for the first time, a new WireGuard peer will be created on the WG_DEFAULT_DEVICE if this option is enabled. |
+| SELF_PROVISIONING     | selfProvisioning  | core        | false                                           | Allow registered users to automatically create peers via the RESTful API.                                                            |
+| LDAP_ENABLED          | ldapEnabled       | core        | false                                           | Enable or disable the LDAP backend.                                                                                                  |
+| SESSION_SECRET        | sessionSecret     | core        | secret                                          | Use a custom secret to encrypt session data.                                                                                         |
+| DATABASE_TYPE         | typ               | database    | sqlite                                          | Either mysql or sqlite.                                                                                                              |
+| DATABASE_HOST         | host              | database    |                                                 | The mysql server address.                                                                                                            |
+| DATABASE_PORT         | port              | database    |                                                 | The mysql server port.                                                                                                               |
+| DATABASE_NAME         | database          | database    | data/wg_portal.db                               | For sqlite database: the database file-path, otherwise the database name.                                                            |
+| DATABASE_USERNAME     | user              | database    |                                                 | The mysql user.                                                                                                                      |
+| DATABASE_PASSWORD     | password          | database    |                                                 | The mysql password.                                                                                                                  |
+| EMAIL_HOST            | host              | email       | 127.0.0.1                                       | The email server address.                                                                                                            |
+| EMAIL_PORT            | port              | email       | 25                                              | The email server port.                                                                                                               |
+| EMAIL_TLS             | tls               | email       | false                                           | Use STARTTLS. DEPRECATED: use EMAIL_ENCRYPTION instead.                                                                              |
+| EMAIL_ENCRYPTION      | encryption        | email       | none                                            | Either none, tls or starttls.                                                                                                        |
+| EMAIL_CERT_VALIDATION | certcheck         | email       | false                                           | Validate the email server certificate.                                                                                               |
+| EMAIL_USERNAME        | user              | email       |                                                 | An optional username for SMTP authentication.                                                                                        |
+| EMAIL_PASSWORD        | pass              | email       |                                                 | An optional password for SMTP authentication.                                                                                        |
+| EMAIL_AUTHTYPE        | auth              | email       | plain                                           | Either plain, login or crammd5. If username and password are empty, this value is ignored.                                           |
+| WG_DEVICES            | devices           | wg          | wg0                                             | A comma separated list of WireGuard devices.                                                                                         |
+| WG_DEFAULT_DEVICE     | defaultDevice     | wg          | wg0                                             | This device is used for auto-created peers (if CREATE_DEFAULT_PEER is enabled).                                                      |
+| WG_CONFIG_PATH        | configDirectory   | wg          | /etc/wireguard                                  | If set, interface configuration updates will be written to this path, filename: <devicename>.conf.                                   |
+| MANAGE_IPS            | manageIPAddresses | wg          | true                                            | Handle IP address setup of interface, only available on linux.                                                                       |
+| LDAP_URL              | url               | ldap        | ldap://srv-ad01.company.local:389               | The LDAP server url.                                                                                                                 |
+| LDAP_STARTTLS         | startTLS          | ldap        | true                                            | Use STARTTLS.                                                                                                                        |
+| LDAP_CERT_VALIDATION  | certcheck         | ldap        | false                                           | Validate the LDAP server certificate.                                                                                                |
+| LDAP_BASEDN           | dn                | ldap        | DC=COMPANY,DC=LOCAL                             | The base DN for searching users.                                                                                                     |
+| LDAP_USER             | user              | ldap        | company\\\\ldap_wireguard                       | The bind user.                                                                                                                       |
+| LDAP_PASSWORD         | pass              | ldap        | SuperSecret                                     | The bind password.                                                                                                                   |
+| LDAP_LOGIN_FILTER     | loginFilter       | ldap        | (&(objectClass=organizationalPerson)(mail={{login_identifier}})(!userAccountControl:1.2.840.113556.1.4.803:=2)) | {{login_identifier}} will be replaced with the login email address.  |
+| LDAP_SYNC_FILTER      | syncFilter        | ldap        | (&(objectClass=organizationalPerson)(!userAccountControl:1.2.840.113556.1.4.803:=2)(mail=*))                    | The filter string for the LDAP synchronization service.              |
+| LDAP_ADMIN_GROUP      | adminGroup        | ldap        | CN=WireGuardAdmins,OU=_O_IT,DC=COMPANY,DC=LOCAL | Users in this group are marked as administrators.                                                                                    |
+| LDAP_ATTR_EMAIL       | attrEmail         | ldap        | mail                                            | User email attribute.                                                                                                                |
+| LDAP_ATTR_FIRSTNAME   | attrFirstname     | ldap        | givenName                                       | User firstname attribute.                                                                                                            |
+| LDAP_ATTR_LASTNAME    | attrLastname      | ldap        | sn                                              | User lastname attribute.                                                                                                             |
+| LDAP_ATTR_PHONE       | attrPhone         | ldap        | telephoneNumber                                 | User phone number attribute.                                                                                                         |
+| LDAP_ATTR_GROUPS      | attrGroups        | ldap        | memberOf                                        | User groups attribute.                                                                                                               |
+| LOG_LEVEL             |                   |             | debug                                           | Specify log level, one of: trace, debug, info, off.                                                                                  |
+| LOG_JSON              |                   |             | false                                           | Format log output as JSON.                                                                                                           |
+| LOG_COLOR             |                   |             | true                                            | Colorize log output.                                                                                                                 |
+| CONFIG_FILE           |                   |             | config.yml                                      | The config file path.                                                                                                                |
+
+### Sample yaml configuration
+config.yml:
+```yaml
+core:
+  listeningAddress: :8123
+  externalUrl: https://wg-test.test.com
+  adminUser: test@test.com
+  adminPass: test
+  editableKeys: true
+  createDefaultPeer: false
+  ldapEnabled: true
+  mailFrom: WireGuard VPN <noreply@test.com>
+ldap:
+  url: ldap://10.10.10.10:389
+  dn: DC=test,DC=test
+  startTLS: false
+  user: wireguard@test.test
+  pass: test
+  adminGroup: CN=WireGuardAdmins,CN=Users,DC=test,DC=test
+database:
+  typ: sqlite
+  database: data/wg_portal.db
+email:
+  host: smtp.gmail.com
+  port: 587
+  tls: true
+  user: test@gmail.com
+  pass: topsecret
+wg:
+  devices: 
+    - wg0
+    - wg1
+  defaultDevice: wg0
+  configDirectory: /etc/wireguard
+  manageIPAddresses: true
+```
+
+### RESTful API
+WireGuard Portal offers a RESTful API to interact with. 
+The API is documented using OpenAPI 2.0, the Swagger UI can be found 
+under the URL `http://<your wg-portal ip/domain>/swagger/index.html`.
+
+## What is out of scope
+ * Creating or removing WireGuard (wgX) interfaces.
+ * Generation or application of any `iptables` or `nftables` rules.
+ * Setting up or changing IP-addresses of the WireGuard interface on operating systems other than linux.
+ * Importing private keys of an existing WireGuard setup.
  
 ## Application stack
 

assets/css/custom.css

@@ -40,6 +40,16 @@ pre{background:#f7f7f9}iframe{overflow:hidden;border:none}@media (min-width: 768
 /* --------------------------------------------------
  End collapsable table*/
 
+.jumbotron-home {
+    padding: 1rem 1rem;
+}
+
+@media (min-width: 576px) {
+    .jumbotron-home {
+        padding: 2rem 2rem;
+    }
+}
+
 @media (min-width: 1440px) {
     .container, .container-lg, .container-md, .container-sm, .container-xl {
         max-width: 1400px;
@@ -71,3 +81,23 @@ pre{background:#f7f7f9}iframe{overflow:hidden;border:none}@media (min-width: 768
     content:"*";
     color:red;
 }
+
+a.advanced-settings:before {
+    content: "Hide";
+}
+
+a.advanced-settings.collapsed:before {
+    content: "Show";
+}
+
+.form-group.global-config label:after, .custom-control.global-config label:after {
+    content: "g";
+    color: #0057bb;
+    font-size: xx-small;
+    top: -5px;
+    position: absolute;
+}
+
+.text-blue {
+    color: #0057bb;
+}

assets/css/signin.css

@@ -0,0 +1,3 @@
+.navbar {
+    padding: 0.5rem 1rem;
+}

assets/js/custom.js

@@ -25,6 +25,11 @@
             }
         });
     });
+    $(function() {
+        $('select.device-selector').change(function() {
+            this.form.submit();
+        });
+    });
 })(jQuery); // End of use strict
 
 

assets/tpl/admin_create_clients.html

@@ -20,16 +20,17 @@
         <h2>Enter valid LDAP user email addresses to quickly create new accounts.</h2>
         {{template "prt_flashes.html" .}}
         <form method="post" enctype="multipart/form-data">
+            <input type="hidden" name="_csrf" value="{{.Csrf}}">
             <div class="form-row">
                 <div class="form-group required col-md-12">
                     <label for="inputEmail">Email Addresses</label>
-                    <input type="text" name="email" class="form-control" id="inputEmail" value="{{.FormData.Emails}}">
+                    <input type="text" name="email" class="form-control" id="inputEmail" value="{{.FormData.Emails}}" required>
                 </div>
             </div>
             <div class="form-row">
                 <div class="form-group required col-md-12">
                     <label for="inputIdentifier">Client Friendly Name (will be added as suffix to the name of the user)</label>
-                    <input type="text" name="identifier" class="form-control" id="inputIdentifier" value="{{.FormData.Identifier}}">
+                    <input type="text" name="identifier" class="form-control" id="inputIdentifier" value="{{.FormData.Identifier}}" required>
                 </div>
             </div>
 
@@ -53,7 +54,7 @@
             }
         }).tokenfield({
             autocomplete: {
-                source: [{{range $i, $u :=.Users}}{{$u.Mail}},{{end}}],
+                source: [{{range $i, $u :=.Users}}{{$u.Email}},{{end}}],
                 delay: 100
             },
             showAutocompleteOnFocus: false

assets/tpl/admin_edit_client.html

@@ -13,33 +13,39 @@
 <body id="page-top" class="d-flex flex-column min-vh-100">
     {{template "prt_nav.html" .}}
     <div class="container mt-5">
+        {{template "prt_flashes.html" .}}
+
+        <!-- server mode -->
+        {{if eq .Device.Type "server"}}
         {{if .Peer.IsNew}}
             <h1>Create a new client</h1>
         {{else}}
-            <h1>Edit client <strong>{{.Peer.Identifier}}</strong></h1>
+            <h1>Edit client: <strong>{{.Peer.Identifier}}</strong></h1>
         {{end}}
 
-        {{template "prt_flashes.html" .}}
-
         <form method="post" enctype="multipart/form-data">
+            <input type="hidden" name="_csrf" value="{{.Csrf}}">
             <input type="hidden" name="uid" value="{{.Peer.UID}}">
+            <input type="hidden" name="devicetype" value="{{.Device.Type}}">
+            <input type="hidden" name="device" value="{{.Device.DeviceName}}">
+            <input type="hidden" name="endpoint" value="{{.Peer.Endpoint}}">
             {{if .EditableKeys}}
                 <div class="form-row">
                     <div class="form-group col-md-12">
-                        <label for="inputServerPrivateKey">Private Key</label>
-                        <input type="text" name="privkey" class="form-control" id="inputServerPrivateKey" value="{{.Peer.PrivateKey}}">
+                        <label for="server_PrivateKey">Private Key</label>
+                        <input type="text" name="privkey" class="form-control" id="server_PrivateKey" value="{{.Peer.PrivateKey}}">
                     </div>
                 </div>
                 <div class="form-row">
                     <div class="form-group required col-md-12">
-                        <label for="inputServerPublicKey">Public Key</label>
-                        <input type="text" name="pubkey" class="form-control" id="inputServerPublicKey" value="{{.Peer.PublicKey}}">
+                        <label for="server_PublicKey">Public Key</label>
+                        <input type="text" name="pubkey" class="form-control" id="server_PublicKey" value="{{.Peer.PublicKey}}" required>
                     </div>
                 </div>
                 <div class="form-row">
                     <div class="form-group col-md-12">
-                        <label for="inputServerPresharedKey">Preshared Key</label>
-                        <input type="text" name="presharedkey" class="form-control" id="inputServerPresharedKey" value="{{.Peer.PresharedKey}}">
+                        <label for="server_PresharedKey">Preshared Key</label>
+                        <input type="text" name="presharedkey" class="form-control" id="server_PresharedKey" value="{{.Peer.PresharedKey}}" required>
                     </div>
                 </div>
             {{else}}
@@ -47,48 +53,70 @@
                 <input type="hidden" name="presharedkey" value="{{.Peer.PresharedKey}}">
                 <div class="form-row">
                     <div class="form-group col-md-12">
-                        <label for="inputServerPublicKey">Public Key</label>
-                        <input type="text" name="pubkey" readonly class="form-control" id="inputServerPublicKey" value="{{.Peer.PublicKey}}">
+                        <label for="server_ro_PublicKey">Public Key</label>
+                        <input type="text" name="pubkey" readonly class="form-control" id="server_ro_PublicKey" value="{{.Peer.PublicKey}}">
                     </div>
                 </div>
             {{end}}
             <div class="form-row">
                 <div class="form-group required col-md-12">
-                    <label for="inputIdentifier">Client Friendly Name</label>
-                    <input type="text" name="identifier" class="form-control" id="inputIdentifier" value="{{.Peer.Identifier}}">
+                    <label for="server_Identifier">Client Friendly Name</label>
+                    <input type="text" name="identifier" class="form-control" id="server_Identifier" value="{{.Peer.Identifier}}" required>
                 </div>
             </div>
             <div class="form-row">
                 <div class="form-group required col-md-12">
-                    <label for="inputEmail">Client Email Address</label>
-                    <input type="email" name="mail" class="form-control" id="inputEmail" value="{{.Peer.Email}}">
+                    <label for="server_Email">Client Email Address</label>
+                    <input type="email" name="mail" class="form-control" id="server_Email" value="{{.Peer.Email}}" required>
                 </div>
             </div>
             <div class="form-row">
                 <div class="form-group required col-md-12">
-                    <label for="inputIP">Client IP Address</label>
-                    <input type="text" name="ip" class="form-control" id="inputIP" value="{{.Peer.IPsStr}}">
+                    <label for="server_IP">Client IP Address</label>
+                    <input type="text" name="ip" class="form-control" id="server_IP" value="{{.Peer.IPsStr}}" required>
                 </div>
             </div>
             <div class="form-row">
-                <div class="form-group required col-md-12">
-                    <label for="inputAllowedIP">Allowed IPs</label>
-                    <input type="text" name="allowedip" class="form-control" id="inputAllowedIP" value="{{.Peer.AllowedIPsStr}}">
+                <div class="form-group col-md-12 global-config">
+                    <label for="server_AllowedIP">Allowed IPs</label>
+                    <input type="text" name="allowedip" class="form-control" id="server_AllowedIP" value="{{.Peer.AllowedIPsStr}}">
+                </div>
+            </div>
+            <div class="form-row">
+                <div class="form-group col-md-12">
+                    <label for="server_AllowedIPSrv">Extra Allowed IPs (Server sided)</label>
+                    <input type="text" name="allowedipSrv" class="form-control" id="server_AllowedIPSrv" value="{{.Peer.AllowedIPsSrvStr}}">
+                </div>
+            </div>
+            <div class="form-row">
+                <div class="form-group col-md-12 global-config">
+                    <label for="server_DNS">Client DNS Servers</label>
+                    <input type="text" name="dns" class="form-control" id="server_DNS" value="{{.Peer.DNSStr}}">
+                </div>
+            </div>
+            <div class="form-row">
+                <div class="form-group col-md-6 global-config">
+                    <label for="server_PersistentKeepalive">Persistent Keepalive (0 = off)</label>
+                    <input type="number" name="keepalive" class="form-control" id="server_PersistentKeepalive" placeholder="16" value="{{.Peer.PersistentKeepalive}}">
+                </div>
+                <div class="form-group col-md-6 global-config">
+                    <label for="server_MTU">Client MTU (0 = default)</label>
+                    <input type="number" name="mtu" class="form-control" id="server_MTU" placeholder="" value="{{.Peer.Mtu}}">
                 </div>
             </div>
 
             <div class="form-row">
                 <div class="form-group col-md-12">
                     <div class="custom-control custom-switch">
-                        <input class="custom-control-input" name="isdisabled" type="checkbox" value="true" id="inputDisabled" {{if .Peer.DeactivatedAt}}checked{{end}}>
-                        <label class="custom-control-label" for="inputDisabled">
+                        <input class="custom-control-input" name="isdisabled" type="checkbox" value="true" id="server_Disabled" {{if .Peer.DeactivatedAt}}checked{{end}}>
+                        <label class="custom-control-label" for="server_Disabled">
                             Disabled
                         </label>
                     </div>
                     <div class="custom-control custom-switch">
-                        <input class="custom-control-input" name="ignorekeepalive" type="checkbox" value="true" id="inputIgnoreKeepalive" {{if .Peer.IgnorePersistentKeepalive}}checked{{end}}>
-                        <label class="custom-control-label" for="inputIgnoreKeepalive">
-                            Ignore persistent keepalive
+                        <input class="custom-control-input" name="ignoreglobalsettings" type="checkbox" value="true" id="server_IgnoreGlobalSettings" {{if .Peer.IgnoreGlobalSettings}}checked{{end}}>
+                        <label class="custom-control-label" for="server_IgnoreGlobalSettings">
+                            Ignore global settings (<span class="text-blue">g</span>)
                         </label>
                     </div>
                 </div>
@@ -98,6 +126,80 @@
             <button type="submit" class="btn btn-primary">Save</button>
             <a href="/admin" class="btn btn-secondary">Cancel</a>
         </form>
+        {{end}}
+
+        <!-- client mode -->
+        {{if eq .Device.Type "client"}}
+        {{if .Peer.IsNew}}
+        <h1>Create a new remote endpoint</h1>
+        {{else}}
+        <h1>Edit remote endpoint: <strong>{{.Peer.Identifier}}</strong></h1>
+        {{end}}
+
+        <form method="post" enctype="multipart/form-data">
+            <input type="hidden" name="_csrf" value="{{.Csrf}}">
+            <input type="hidden" name="uid" value="{{.Peer.UID}}">
+            <input type="hidden" name="mail" value="{{.AdminEmail}}">
+            <input type="hidden" name="devicetype" value="{{.Device.Type}}">
+            <input type="hidden" name="device" value="{{.Device.DeviceName}}">
+            <input type="hidden" name="privkey" value="{{.Peer.PrivateKey}}">
+                        <div class="form-row">
+                <div class="form-group required col-md-12">
+                    <label for="client_Identifier">Endpoint Friendly Name</label>
+                    <input type="text" name="identifier" class="form-control" id="client_Identifier" value="{{.Peer.Identifier}}" required>
+                </div>
+            </div>
+            <div class="form-row">
+                <div class="form-group required col-md-12">
+                    <label for="client_Endpoint">Endpoint Address</label>
+                    <input type="text" name="endpoint" class="form-control" id="client_Endpoint" value="{{.Peer.Endpoint}}" required>
+                </div>
+            </div>
+            <div class="form-row">
+                <div class="form-group required col-md-12">
+                    <label for="client_PublicKey">Endpoint Public Key</label>
+                    <input type="text" name="pubkey" class="form-control" id="client_PublicKey" value="{{.Peer.PublicKey}}" required>
+                </div>
+            </div>
+            <div class="form-row">
+                <div class="form-group col-md-12">
+                    <label for="client_PresharedKey">Preshared Key</label>
+                    <input type="text" name="presharedkey" class="form-control" id="client_PresharedKey" value="{{.Peer.PresharedKey}}">
+                </div>
+            </div>
+            <div class="form-row">
+                <div class="form-group col-md-12">
+                    <label for="client_AllowedIP">Allowed IPs</label>
+                    <input type="text" name="allowedip" class="form-control" id="client_AllowedIP" value="{{.Peer.AllowedIPsStr}}">
+                </div>
+            </div>
+            <div class="form-row">
+                <div class="form-group col-md-6">
+                    <label for="client_PersistentKeepalive">Persistent Keepalive (0 = off)</label>
+                    <input type="number" name="keepalive" class="form-control" id="client_PersistentKeepalive" placeholder="16" value="{{.Peer.PersistentKeepalive}}">
+                </div>
+                <div class="form-group col-md-6">
+                    <label for="client_IP">Ping-Check IP Address</label>
+                    <input type="text" name="ip" class="form-control" id="client_IP" value="{{.Peer.IPsStr}}">
+                </div>
+            </div>
+
+            <div class="form-row">
+                <div class="form-group col-md-12">
+                    <div class="custom-control custom-switch">
+                        <input class="custom-control-input" name="isdisabled" type="checkbox" value="true" id="client_Disabled" {{if .Peer.DeactivatedAt}}checked{{end}}>
+                        <label class="custom-control-label" for="client_Disabled">
+                            Disabled
+                        </label>
+                    </div>
+                </div>
+            </div>
+
+
+            <button type="submit" class="btn btn-primary">Save</button>
+            <a href="/admin" class="btn btn-secondary">Cancel</a>
+        </form>
+        {{end}}
     </div>
     {{template "prt_footer.html" .}}
     <script src="/js/jquery.min.js"></script>

assets/tpl/admin_edit_interface.html

@@ -16,99 +16,241 @@
         <h1>Edit interface <strong>{{.Device.DeviceName}}</strong></h1>
         {{template "prt_flashes.html" .}}
 
+        <ul class="nav nav-tabs">
+            <li class="nav-item">
+                <a class="nav-link {{if eq .Device.Type "server"}}active{{end}}" data-toggle="tab" href="#server">Server Mode</a>
+            </li>
+            <li class="nav-item">
+                <a class="nav-link {{if eq .Device.Type "client"}}active{{end}}" data-toggle="tab" href="#client">Client Mode</a>
+            </li>
+        </ul>
+
+        <div id="configContent" class="tab-content">
+            <!-- server mode -->
+            <div class="tab-pane fade {{if eq .Device.Type "server"}}active show{{end}}" id="server">
                 <form method="post" enctype="multipart/form-data">
+                    <input type="hidden" name="_csrf" value="{{.Csrf}}">
                     <input type="hidden" name="device" value="{{.Device.DeviceName}}">
+                    <input type="hidden" name="devicetype" value="server">
                     <h3>Server's interface configuration</h3>
+                    <div class="form-row">
+                        <div class="form-group col-md-12">
+                            <label for="server_DisplayName">Display Name</label>
+                            <input type="text" name="displayname" class="form-control" id="server_DisplayName" value="{{.Device.DisplayName}}">
+                        </div>
+                    </div>
                     {{if .EditableKeys}}
                     <div class="form-row">
                         <div class="form-group required col-md-12">
-                    <label for="inputServerPrivateKey">Private Key</label>
-                    <input type="text" name="privkey" class="form-control" id="inputServerPrivateKey" value="{{.Device.PrivateKey}}">
+                            <label for="server_PrivateKey">Private Key</label>
+                            <input type="text" name="privkey" class="form-control" id="server_PrivateKey" value="{{.Device.PrivateKey}}" required>
                         </div>
                     </div>
                     <div class="form-row">
                         <div class="form-group required col-md-12">
-                    <label for="inputServerPublicKey">Public Key</label>
-                    <input type="text" name="pubkey" class="form-control" id="inputServerPublicKey" value="{{.Device.PublicKey}}">
+                            <label for="server_PublicKey">Public Key</label>
+                            <input type="text" name="pubkey" class="form-control" id="server_PublicKey" value="{{.Device.PublicKey}}" required>
                         </div>
                     </div>
                     {{else}}
                     <input type="hidden" name="privkey" value="{{.Device.PrivateKey}}">
                     <div class="form-row">
                         <div class="form-group col-md-12">
-                    <label for="inputServerPublicKey">Public Key</label>
-                    <input type="text" name="pubkey" readonly class="form-control" id="inputServerPublicKey" value="{{.Device.PublicKey}}">
+                            <label for="server_ro_PublicKey">Public Key</label>
+                            <input type="text" name="pubkey" readonly class="form-control" id="server_ro_PublicKey" value="{{.Device.PublicKey}}">
                         </div>
                     </div>
                     {{end}}
                     <div class="form-row">
                         <div class="form-group required col-md-6">
-                    <label for="inputListenPort">Listen port</label>
-                    <input type="number" name="port" class="form-control" id="inputListenPort" placeholder="51820" value="{{.Device.ListenPort}}">
+                            <label for="server_ListenPort">Listen port</label>
+                            <input type="number" name="port" class="form-control" id="server_ListenPort" placeholder="51820" value="{{.Device.ListenPort}}" required>
                         </div>
                         <div class="form-group required col-md-6">
-                    <label for="inputIPs">Server IP address</label>
-                    <input type="text" name="ip" class="form-control" id="inputIPs" placeholder="10.6.6.1/24" value="{{.Device.IPsStr}}">
+                            <label for="server_IPs">Server IP address</label>
+                            <input type="text" name="ip" class="form-control" id="server_IPs" placeholder="10.6.6.1/24" value="{{.Device.IPsStr}}" required>
                         </div>
                     </div>
-            <h3>Client's global configuration</h3>
+                    <h3>Client's global configuration (<span class="text-blue">g</span>)</h3>
                     <div class="form-row">
                         <div class="form-group required col-md-12">
-                    <label for="inputPublicEndpoint">Public Enpoint for Clients</label>
-                    <input type="text" name="endpoint" class="form-control" id="inputPublicEndpoint" placeholder="vpn.company.com:51820" value="{{.Device.Endpoint}}">
+                            <label for="server_PublicEndpoint">Public Endpoint for Clients</label>
+                            <input type="text" name="endpoint" class="form-control" id="server_PublicEndpoint" placeholder="vpn.company.com:51820" value="{{.Device.DefaultEndpoint}}" required>
                         </div>
                     </div>
                     <div class="form-row">
                         <div class="form-group col-md-6">
-                    <label for="inputDNS">DNS Servers</label>
-                    <input type="text" name="dns" class="form-control" id="inputDNS" placeholder="1.1.1.1" value="{{.Device.DNSStr}}">
+                            <label for="server_DNS">DNS Servers</label>
+                            <input type="text" name="dns" class="form-control" id="server_DNS" placeholder="1.1.1.1" value="{{.Device.DNSStr}}">
                         </div>
                         <div class="form-group col-md-6">
-                    <label for="inputAllowedIP">Default allowed IPs</label>
-                    <input type="text" name="allowedip" class="form-control" id="inputAllowedIP" placeholder="10.6.6.0/24" value="{{.Device.AllowedIPsStr}}">
+                            <label for="server_AllowedIP">Default allowed IPs</label>
+                            <input type="text" name="allowedip" class="form-control" id="server_AllowedIP" placeholder="10.6.6.0/24" value="{{.Device.DefaultAllowedIPsStr}}">
                         </div>
                     </div>
                     <div class="form-row">
                         <div class="form-group col-md-6">
-                    <label for="inputMTU">Global MTU</label>
-                    <input type="number" name="mtu" class="form-control" id="inputMTU" placeholder="0" value="{{.Device.Mtu}}">
+                            <label for="server_MTU">MTU (also used for the server interface, 0 = default)</label>
+                            <input type="number" name="mtu" class="form-control" id="server_MTU" placeholder="" value="{{.Device.Mtu}}">
                         </div>
                         <div class="form-group col-md-6">
-                    <label for="inputPersistentKeepalive">Persistent Keepalive</label>
-                    <input type="number" name="keepalive" class="form-control" id="inputPersistentKeepalive" placeholder="16" value="{{.Device.PersistentKeepalive}}">
+                            <label for="server_PersistentKeepalive">Persistent Keepalive (0 = off)</label>
+                            <input type="number" name="keepalive" class="form-control" id="server_PersistentKeepalive" placeholder="16" value="{{.Device.DefaultPersistentKeepalive}}">
                         </div>
                     </div>
                     <h3>Interface configuration hooks</h3>
                     <div class="form-row">
                         <div class="form-group col-md-12">
-                    <label for="inputPreUp">Pre Up</label>
-                    <input type="text" name="preup" class="form-control" id="inputPreUp" value="{{.Device.PreUp}}">
+                            <label for="server_PreUp">Pre Up</label>
+                            <input type="text" name="preup" class="form-control" id="server_PreUp" value="{{.Device.PreUp}}">
                         </div>
                     </div>
                     <div class="form-row">
                         <div class="form-group col-md-12">
-                    <label for="inputPostUp">Post Up</label>
-                    <input type="text" name="postup" class="form-control" id="inputPostUp" value="{{.Device.PostUp}}">
+                            <label for="server_PostUp">Post Up</label>
+                            <input type="text" name="postup" class="form-control" id="server_PostUp" value="{{.Device.PostUp}}">
                         </div>
                     </div>
                     <div class="form-row">
                         <div class="form-group col-md-12">
-                    <label for="inputPreDown">Pre Down</label>
-                    <input type="text" name="predown" class="form-control" id="inputPreDown" value="{{.Device.PreDown}}">
+                            <label for="server_PreDown">Pre Down</label>
+                            <input type="text" name="predown" class="form-control" id="server_PreDown" value="{{.Device.PreDown}}">
                         </div>
                     </div>
                     <div class="form-row">
                         <div class="form-group col-md-12">
-                    <label for="inputPostDown">Post Down</label>
-                    <input type="text" name="postdown" class="form-control" id="inputPostDown" value="{{.Device.PostDown}}">
+                            <label for="server_PostDown">Post Down</label>
+                            <input type="text" name="postdown" class="form-control" id="server_PostDown" value="{{.Device.PostDown}}">
+                        </div>
+                    </div>
+
+                    <div class="form-row">
+                        <div class="d-flex align-items-center">
+                            <a href="#" class="advanced-settings btn btn-link collapsed" data-toggle="collapse" data-target="#collapseAdvancedServer" aria-expanded="false" aria-controls="collapseAdvancedServer">
+                                Advanced Settings
+                            </a>
+                        </div>
+                    </div>
+                    <div id="collapseAdvancedServer" class="collapse" aria-labelledby="collapseAdvancedServer">
+                        <div class="form-row">
+                            <div class="form-group col-md-6">
+                                <label for="server_FirewallMark">Firewall Mark (0 = default or off)</label>
+                                <input type="number" name="firewallmark" class="form-control" id="server_FirewallMark" placeholder="" value="{{.Device.FirewallMark}}">
+                            </div>
+                            <div class="form-group col-md-6">
+                                <label for="server_RoutingTable">Routing Table (empty = default or auto)</label>
+                                <input type="text" name="routingtable" class="form-control" id="server_RoutingTable" placeholder="auto" value="{{.Device.RoutingTable}}">
+                            </div>
+                        </div>
+                        <div class="form-row">
+                            <div class="form-group col-md-12">
+                                <div class="custom-control custom-switch">
+                                    <input class="custom-control-input" name="saveconfig" type="checkbox" value="true" id="server_SaveConfig" {{if .Peer.SaveConfig}}checked{{end}}>
+                                    <label class="custom-control-label" for="server_SaveConfig">
+                                        Save Configuration (if interface was edited via WireGuard configuration tool)
+                                    </label>
+                                </div>
+                            </div>
                         </div>
                     </div>
 
                     <button type="submit" class="btn btn-primary">Save</button>
                     <a href="/admin" class="btn btn-secondary">Cancel</a>
-            <a href="/admin/device/applyglobals" class="btn btn-dark float-right">Apply Allowed IP's to clients</a>
+                    <a href="/admin/device/applyglobals" class="btn btn-dark float-right">Apply Global Settings (<span class="text-blue">g</span>) to clients</a>
                 </form>
             </div>
+
+            <!-- client mode -->
+            <div class="tab-pane fade {{if eq .Device.Type "client"}}active show{{end}}" id="client">
+                <form method="post" enctype="multipart/form-data">
+                    <input type="hidden" name="_csrf" value="{{.Csrf}}">
+                    <input type="hidden" name="device" value="{{.Device.DeviceName}}">
+                    <input type="hidden" name="devicetype" value="client">
+                    <h3>Client's interface configuration</h3>
+                    <div class="form-row">
+                        <div class="form-group col-md-12">
+                            <label for="client_DisplayName">Display Name</label>
+                            <input type="text" name="displayname" class="form-control" id="client_DisplayName" value="{{.Device.DisplayName}}">
+                        </div>
+                    </div>
+                    {{if .EditableKeys}}
+                    <div class="form-row">
+                        <div class="form-group required col-md-12">
+                            <label for="client_PrivateKey">Private Key</label>
+                            <input type="text" name="privkey" class="form-control" id="client_PrivateKey" value="{{.Device.PrivateKey}}" required>
+                        </div>
+                    </div>
+                    <div class="form-row">
+                        <div class="form-group required col-md-12">
+                            <label for="client_PublicKey">Public Key</label>
+                            <input type="text" name="pubkey" class="form-control" id="client_PublicKey" value="{{.Device.PublicKey}}" required>
+                        </div>
+                    </div>
+                    {{else}}
+                    <input type="hidden" name="privkey" value="{{.Device.PrivateKey}}">
+                    <div class="form-row">
+                        <div class="form-group col-md-12">
+                            <label for="client_ro_PublicKey">Public Key</label>
+                            <input type="text" name="pubkey" readonly class="form-control" id="client_ro_PublicKey" value="{{.Device.PublicKey}}">
+                        </div>
+                    </div>
+                    {{end}}
+                    <div class="form-row">
+                        <div class="form-group required col-md-6">
+                            <label for="client_IPs">Client IP address</label>
+                            <input type="text" name="ip" class="form-control" id="client_IPs" placeholder="10.6.6.1/24" value="{{.Device.IPsStr}}" required>
+                        </div>
+                        <div class="form-group col-md-6">
+                            <label for="client_DNS">DNS Servers</label>
+                            <input type="text" name="dns" class="form-control" id="client_DNS" placeholder="1.1.1.1" value="{{.Device.DNSStr}}">
+                        </div>
+                    </div>
+                    <div class="form-row">
+                        <div class="form-group col-md-4">
+                            <label for="client_MTU">MTU (0 = default)</label>
+                            <input type="number" name="mtu" class="form-control" id="client_MTU" placeholder="" value="{{.Device.Mtu}}">
+                        </div>
+                        <div class="form-group col-md-4">
+                            <label for="client_FirewallMark">Firewall Mark (0 = default or off)</label>
+                            <input type="number" name="firewallmark" class="form-control" id="client_FirewallMark" placeholder="" value="{{.Device.FirewallMark}}">
+                        </div>
+                        <div class="form-group col-md-4">
+                            <label for="client_RoutingTable">Routing Table (empty = default or auto)</label>
+                            <input type="text" name="routingtable" class="form-control" id="client_RoutingTable" placeholder="auto" value="{{.Device.RoutingTable}}">
+                        </div>
+                    </div>
+                    <h3>Interface configuration hooks</h3>
+                    <div class="form-row">
+                        <div class="form-group col-md-12">
+                            <label for="client_PreUp">Pre Up</label>
+                            <input type="text" name="preup" class="form-control" id="client_PreUp" value="{{.Device.PreUp}}">
+                        </div>
+                    </div>
+                    <div class="form-row">
+                        <div class="form-group col-md-12">
+                            <label for="client_PostUp">Post Up</label>
+                            <input type="text" name="postup" class="form-control" id="client_PostUp" value="{{.Device.PostUp}}">
+                        </div>
+                    </div>
+                    <div class="form-row">
+                        <div class="form-group col-md-12">
+                            <label for="client_PreDown">Pre Down</label>
+                            <input type="text" name="predown" class="form-control" id="client_PreDown" value="{{.Device.PreDown}}">
+                        </div>
+                    </div>
+                    <div class="form-row">
+                        <div class="form-group col-md-12">
+                            <label for="client_PostDown">Post Down</label>
+                            <input type="text" name="postdown" class="form-control" id="client_PostDown" value="{{.Device.PostDown}}">
+                        </div>
+                    </div>
+
+                    <button type="submit" class="btn btn-primary">Save</button>
+                    <a href="/admin" class="btn btn-secondary">Cancel</a>
+                </form>
+            </div>
+        </div>
+    </div>
     {{template "prt_footer.html" .}}
     <script src="/js/jquery.min.js"></script>
     <script src="/js/bootstrap.bundle.min.js"></script>

assets/tpl/admin_edit_user.html

@@ -0,0 +1,88 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no">
+    <title>{{ .Static.WebsiteTitle }} - Users</title>
+    <meta name="description" content="{{ .Static.WebsiteTitle }}">
+    <link rel="stylesheet" href="/css/bootstrap.min.css">
+    <link rel="stylesheet" href="/fonts/fontawesome-all.min.css">
+    <link rel="stylesheet" href="/css/custom.css">
+</head>
+
+<body id="page-top" class="d-flex flex-column min-vh-100">
+{{template "prt_nav.html" .}}
+<div class="container mt-5">
+    {{if eq .User.CreatedAt .Epoch}}
+    <h1>Create a new user</h1>
+    {{else}}
+    <h1>Edit user <strong>{{.User.Email}}</strong></h1>
+    {{end}}
+
+    {{template "prt_flashes.html" .}}
+
+    <form method="post" enctype="multipart/form-data">
+        <input type="hidden" name="_csrf" value="{{.Csrf}}">
+        {{if eq .User.CreatedAt .Epoch}}
+        <div class="form-row">
+            <div class="form-group required col-md-12">
+                <label for="inputEmail">Email</label>
+                <input type="text" name="email" class="form-control" id="inputEmail" value="{{.User.Email}}" required>
+            </div>
+        </div>
+        {{else}}
+        <input type="hidden" name="email" value="{{.User.Email}}">
+        {{end}}
+        <div class="form-row">
+            <div class="form-group required col-md-12">
+                <label for="inputFirstname">Firstname</label>
+                <input type="text" name="firstname" class="form-control" id="inputFirstname" value="{{.User.Firstname}}" required>
+            </div>
+        </div>
+        <div class="form-row">
+            <div class="form-group required col-md-12">
+                <label for="inputLastname">Lastname</label>
+                <input type="text" name="lastname" class="form-control" id="inputLastname" value="{{.User.Lastname}}" required>
+            </div>
+        </div>
+        <div class="form-row">
+            <div class="form-group col-md-12">
+                <label for="inputPhone">Phone</label>
+                <input type="text" name="phone" class="form-control" id="inputPhone" value="{{.User.Phone}}">
+            </div>
+        </div>
+        <div class="form-row">
+            <div class="form-group col-md-12 {{if eq .User.CreatedAt .Epoch}}required{{end}}">
+                <label for="inputPassword">Password</label>
+                <input type="password" name="password" class="form-control" id="inputPassword" {{if eq .User.CreatedAt .Epoch}}required{{end}}>
+            </div>
+        </div>
+        <div class="form-row">
+            <div class="form-group col-md-12">
+                <div class="custom-control custom-switch">
+                    <input class="custom-control-input" name="isadmin" type="checkbox" value="true" id="inputAdmin" {{if .User.IsAdmin}}checked{{end}}>
+                    <label class="custom-control-label" for="inputAdmin">
+                        Administrator
+                    </label>
+                </div>
+                <div class="custom-control custom-switch">
+                    <input class="custom-control-input" name="isdisabled" type="checkbox" value="true" id="inputDisabled" {{if .User.DeletedAt.Valid}}checked{{end}}>
+                    <label class="custom-control-label" for="inputDisabled">
+                        Disabled
+                    </label>
+                </div>
+            </div>
+        </div>
+
+        <button type="submit" class="btn btn-primary">Save</button>
+        <a href="/admin/users/" class="btn btn-secondary">Cancel</a>
+    </form>
+</div>
+{{template "prt_footer.html" .}}
+<script src="/js/jquery.min.js"></script>
+<script src="/js/bootstrap.bundle.min.js"></script>
+<script src="/js/jquery.easing.js"></script>
+<script src="/js/custom.js"></script>
+</body>
+
+</html>

assets/tpl/admin_index.html

@@ -18,7 +18,9 @@
         <div class="card">
             <div class="card-header">
                 <div class="d-flex align-items-center">
-                    <span class="mr-auto">Interface status for <strong>{{.Device.DeviceName}}</strong></span>
+                    <span class="mr-auto">Interface status for <strong>{{.Device.DeviceName}}</strong> {{if eq $.Device.Type "server"}}(server mode){{end}}{{if eq $.Device.Type "client"}}(client mode){{end}}</span>
+                    <a href="/admin/device/write?dev={{.Device.DeviceName}}" title="Write interface configuration"><i class="fas fa-save"></i></a>
+                    &nbsp;&nbsp;&nbsp;
                     <a href="/admin/device/download?dev={{.Device.DeviceName}}" title="Download interface configuration"><i class="fas fa-download"></i></a>
                     &nbsp;&nbsp;&nbsp;
                     <a href="/admin/device/edit?dev={{.Device.DeviceName}}" title="Edit interface settings"><i class="fas fa-cog"></i></a>
@@ -26,6 +28,7 @@
             </div>
             <div class="card-body">
                 <div class="row">
+                    {{if eq $.Device.Type "server"}}
                     <div class="col-sm-6">
                         <table class="table table-sm table-borderless device-status-table">
                             <tbody>
@@ -35,7 +38,7 @@
                             </tr>
                             <tr>
                                 <td>Public Endpoint:</td>
-                                <td>{{.Device.Endpoint}}</td>
+                                <td>{{.Device.DefaultEndpoint}}</td>
                             </tr>
                             <tr>
                                 <td>Listening Port:</td>
@@ -61,7 +64,7 @@
                             </tr>
                             <tr>
                                 <td>Default allowed IP's:</td>
-                                <td>{{.Device.AllowedIPsStr}}</td>
+                                <td>{{.Device.DefaultAllowedIPsStr}}</td>
                             </tr>
                             <tr>
                                 <td>Default DNS servers:</td>
@@ -73,24 +76,68 @@
                             </tr>
                             <tr>
                                 <td>Default Keepalive Interval:</td>
-                                <td>{{.Device.PersistentKeepalive}}</td>
+                                <td>{{.Device.DefaultPersistentKeepalive}}</td>
                             </tr>
                             </tbody>
                         </table>
                     </div>
+                    {{end}}
+                    {{if eq $.Device.Type "client"}}
+                    <div class="col-sm-6">
+                        <table class="table table-sm table-borderless device-status-table">
+                            <tbody>
+                            <tr>
+                                <td>Public Key:</td>
+                                <td>{{.Device.PublicKey}}</td>
+                            </tr>
+                            <tr>
+                                <td>Enabled Endpoints:</td>
+                                <td>{{len .Device.Interface.Peers}}</td>
+                            </tr>
+                            <tr>
+                                <td>Total Endpoints:</td>
+                                <td>{{.TotalPeers}}</td>
+                            </tr>
+                            </tbody>
+                        </table>
+                    </div>
+                    <div class="col-sm-6">
+                        <table class="table table-sm table-borderless device-status-table">
+                            <tbody>
+                            <tr>
+                                <td>IP Address:</td>
+                                <td>{{.Device.IPsStr}}</td>
+                            </tr>
+                            <tr>
+                                <td>DNS servers:</td>
+                                <td>{{.Device.DNSStr}}</td>
+                            </tr>
+                            <tr>
+                                <td>Default MTU:</td>
+                                <td>{{.Device.Mtu}}</td>
+                            </tr>
+                            </tbody>
+                        </table>
+                    </div>
+                    {{end}}
                 </div>
 
             </div>
         </div>
         <div class="mt-4 row">
             <div class="col-sm-10 col-12">
-                <h2 class="mt-2">Current VPN Users</h2>
+                {{if eq $.Device.Type "server"}}
+                <h2 class="mt-2">Current VPN Peers</h2>
+                {{end}}
+                {{if eq $.Device.Type "client"}}
+                <h2 class="mt-2">Current VPN Endpoints</h2>
+                {{end}}
             </div>
             <div class="col-sm-2 col-12 text-right">
-                {{if not .Static.LdapDisabled}}
-                <a href="/admin/peer/createldap" title="Add LDAP users" class="btn btn-primary"><i class="fa fa-fw fa-user-plus"></i></a>
+                {{if eq $.Device.Type "server"}}
+                <a href="/admin/peer/createldap" title="Add multiple peers" class="btn btn-primary"><i class="fa fa-fw fa-user-plus"></i></a>
                 {{end}}
-                <a href="/admin/peer/create" title="Manually add a user" class="btn btn-primary"><i class="fa fa-fw fa-plus"></i>M</a>
+                <a href="/admin/peer/create" title="Add a peer" class="btn btn-primary"><i class="fa fa-fw fa-plus"></i>M</a>
             </div>
         </div>
         <div class="mt-2 table-responsive">
@@ -98,16 +145,24 @@
                 <thead>
                 <tr>
                     <th scope="col" class="list-image-cell"></th><!-- Status and expand -->
-                    <th scope="col"><a href="?sort=id">Identifier <i class="fa fa-fw {{.Session.GetSortIcon "id"}}"></i></a></th>
-                    <th scope="col"><a href="?sort=pubKey">Public Key <i class="fa fa-fw {{.Session.GetSortIcon "pubKey"}}"></i></a></th>
-                    <th scope="col"><a href="?sort=mail">E-Mail <i class="fa fa-fw {{.Session.GetSortIcon "mail"}}"></i></a></th>
-                    <th scope="col"><a href="?sort=ip">IP's <i class="fa fa-fw {{.Session.GetSortIcon "ip"}}"></i></a></th>
-                    <th scope="col"><a href="?sort=handshake">Handshake <i class="fa fa-fw {{.Session.GetSortIcon "handshake"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=id">Identifier <i class="fa fa-fw {{.Session.GetSortIcon "peers" "id"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=pubKey">Public Key <i class="fa fa-fw {{.Session.GetSortIcon "peers" "pubKey"}}"></i></a></th>
+                    {{if eq $.Device.Type "server"}}
+                    <th scope="col"><a href="?sort=mail">E-Mail <i class="fa fa-fw {{.Session.GetSortIcon "peers" "mail"}}"></i></a></th>
+                    {{end}}
+                    {{if eq $.Device.Type "server"}}
+                    <th scope="col"><a href="?sort=ip">IP's <i class="fa fa-fw {{.Session.GetSortIcon "peers" "ip"}}"></i></a></th>
+                    {{end}}
+                    {{if eq $.Device.Type "client"}}
+                    <th scope="col"><a href="?sort=endpoint">Endpoint <i class="fa fa-fw {{.Session.GetSortIcon "peers" "endpoint"}}"></i></a></th>
+                    {{end}}
+                    <th scope="col"><a href="?sort=handshake">Handshake <i class="fa fa-fw {{.Session.GetSortIcon "peers" "handshake"}}"></i></a></th>
                     <th scope="col"></th><!-- Actions -->
                 </tr>
                 </thead>
                 <tbody>
                 {{range $i, $p :=.Peers}}
+                    {{$peerUser:=(userForEmail $.Users $p.Email)}}
                     <tr id="user-pos-{{$i}}" {{if $p.DeactivatedAt}}class="disabled-peer"{{end}}>
                         <th scope="row" class="list-image-cell">
                             <a href="#{{$p.UID}}" data-toggle="collapse" class="collapse-indicator collapsed"></a>
@@ -116,8 +171,15 @@
                         </th>
                         <td>{{$p.Identifier}}</td>
                         <td>{{$p.PublicKey}}</td>
+                        {{if eq $.Device.Type "server"}}
                         <td>{{$p.Email}}</td>
+                        {{end}}
+                        {{if eq $.Device.Type "server"}}
                         <td>{{$p.IPsStr}}</td>
+                        {{end}}
+                        {{if eq $.Device.Type "client"}}
+                        <td>{{$p.Endpoint}}</td>
+                        {{end}}
                         <td><span data-toggle="tooltip" data-placement="left" title="" data-original-title="{{$p.LastHandshakeTime}}">{{$p.LastHandshake}}</span></td>
                         <td>
                             {{if eq $.Session.IsAdmin true}}
@@ -134,9 +196,11 @@
                                             <li class="nav-item">
                                                 <a class="nav-link active" data-toggle="tab" href="#t1{{$p.UID}}">Personal</a>
                                             </li>
+                                            {{if eq $.Device.Type "server"}}
                                             <li class="nav-item">
                                                 <a class="nav-link" data-toggle="tab" href="#t2{{$p.UID}}">Configuration</a>
                                             </li>
+                                            {{end}}
                                             <li class="nav-item">
                                                 <a class="nav-link" data-toggle="tab" href="#t3{{$p.UID}}">Danger Zone</a>
                                             </li>
@@ -144,15 +208,14 @@
                                         <div class="tab-content" id="tabContent{{$p.UID}}">
                                             <div id="t1{{$p.UID}}" class="tab-pane fade active show">
                                                 <h4>User details</h4>
-                                                {{if not $p.LdapUser}}
-                                                    <p>No LDAP user-information available...</p>
+                                                {{if not $peerUser}}
+                                                    <p>No user information available...</p>
                                                 {{else}}
                                                     <ul>
-                                                        <li>Firstname: {{$p.LdapUser.Firstname}}</li>
-                                                        <li>Lastname: {{$p.LdapUser.Lastname}}</li>
-                                                        <li>Phone: {{index $p.LdapUser.RawLdapData.Attributes "telephoneNumber"}}</li>
-                                                        <li>Mail: {{$p.LdapUser.Mail}}</li>
-                                                        <li>Department: {{index $p.LdapUser.RawLdapData.Attributes "department"}}</li>
+                                                        <li>Firstname: {{$peerUser.Firstname}}</li>
+                                                        <li>Lastname: {{$peerUser.Lastname}}</li>
+                                                        <li>Phone: {{$peerUser.Phone}}</li>
+                                                        <li>Mail: {{$peerUser.Email}}</li>
                                                     </ul>
                                                 {{end}}
                                                 <h4>Connection / Traffic</h4>
@@ -163,22 +226,28 @@
                                                     <p class="ml-4">{{if $p.DeactivatedAt}}-{{else}}<i class="fas fa-long-arrow-alt-down" title="Download"></i> {{formatBytes $p.Peer.ReceiveBytes}} / <i class="fas fa-long-arrow-alt-up" title="Upload"></i> {{formatBytes $p.Peer.TransmitBytes}}{{end}}</p>
                                                 {{end}}
                                             </div>
+                                            {{if eq $.Device.Type "server"}}
                                             <div id="t2{{$p.UID}}" class="tab-pane fade">
                                                 <pre>{{$p.Config}}</pre>
                                             </div>
+                                            {{end}}
                                             <div id="t3{{$p.UID}}" class="tab-pane fade">
                                                 <a href="/admin/peer/delete?pkey={{$p.PublicKey}}" class="btn btn-danger" title="Delete peer">Delete</a>
                                             </div>
                                         </div>
                                     </div>
                                     <div class="col-md-3">
+                                        {{if eq $.Device.Type "server"}}
                                         <img class="list-image-large" src="/user/qrcode?pkey={{$p.PublicKey}}"/>
+                                        {{end}}
                                     </div>
                                     <div class="col-md-3">
+                                        {{if eq $.Device.Type "server"}}
                                         <div class="float-right mt-5">
                                         <a href="/admin/peer/download?pkey={{$p.PublicKey}}" class="btn btn-primary" title="Download configuration">Download</a>
                                         <a href="/admin/peer/email?pkey={{$p.PublicKey}}" class="btn btn-primary" title="Send configuration via Email">Email</a>
                                         </div>
+                                        {{end}}
                                     </div>
                                 </div>
                             </div>

assets/tpl/admin_user_index.html

@@ -0,0 +1,67 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no">
+    <title>{{ .Static.WebsiteTitle }} - Users</title>
+    <meta name="description" content="{{ .Static.WebsiteTitle }}">
+    <link rel="stylesheet" href="/css/bootstrap.min.css">
+    <link rel="stylesheet" href="/fonts/fontawesome-all.min.css">
+    <link rel="stylesheet" href="/css/custom.css">
+</head>
+
+<body id="page-top" class="d-flex flex-column min-vh-100">
+    {{template "prt_nav.html" .}}
+    <div class="container mt-5">
+        <h1>WireGuard VPN Users</h1>
+        {{template "prt_flashes.html" .}}
+        <div class="mt-4 row">
+            <div class="col-sm-10 col-12">
+                <h2 class="mt-2">All Users</h2>
+            </div>
+            <div class="col-sm-2 col-12 text-right">
+                <a href="/admin/users/create" title="Add a user" class="btn btn-primary"><i class="fa fa-fw fa-plus"></i>M</a>
+            </div>
+        </div>
+        <div class="mt-2 table-responsive">
+            <table class="table table-sm" id="userTable">
+                <thead>
+                <tr>
+                    <th scope="col"><a href="?sort=email">E-Mail <i class="fa fa-fw {{.Session.GetSortIcon "users" "email"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=lastname">Lastname <i class="fa fa-fw {{.Session.GetSortIcon "users" "lastname"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=firstname">Firstname <i class="fa fa-fw {{.Session.GetSortIcon "users" "firstname"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=source">Source <i class="fa fa-fw {{.Session.GetSortIcon "users" "source"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=admin">Is Admin <i class="fa fa-fw {{.Session.GetSortIcon "users" "admin"}}"></i></a></th>
+                    <th scope="col"></th><!-- Actions -->
+                </tr>
+                </thead>
+                <tbody>
+                {{range $i, $u :=.Users}}
+                    <tr id="user-pos-{{$i}}" {{if $u.DeletedAt.Valid}}class="disabled-peer"{{end}}>
+                        <td>{{$u.Email}}</td>
+                        <td>{{$u.Lastname}}</td>
+                        <td>{{$u.Firstname}}</td>
+                        <td>{{$u.Source}}</td>
+                        <td>{{if $u.IsAdmin}}True{{else}}False{{end}}</td>
+                        <td>
+                            {{if eq $.Session.IsAdmin true}}
+                            {{if eq $u.Source "db"}}
+                                <a href="/admin/users/edit?pkey={{$u.Email}}" title="Edit user"><i class="fas fa-cog"></i></a>
+                            {{end}}
+                            {{end}}
+                        </td>
+                    </tr>
+                {{end}}
+                </tbody>
+            </table>
+            <p>Currently listed users: <strong>{{len .Users}}</strong></p>
+        </div>
+    </div>
+    {{template "prt_footer.html" .}}
+    <script src="/js/jquery.min.js"></script>
+    <script src="/js/bootstrap.bundle.min.js"></script>
+    <script src="/js/jquery.easing.js"></script>
+    <script src="/js/custom.js"></script>
+</body>
+
+</html>

assets/tpl/email.html

@@ -92,7 +92,7 @@
                                                         <th class="column-top" width="210" style="font-size:0pt; line-height:0pt; padding:0; margin:0; font-weight:normal; vertical-align:top;">
                                                             <table width="100%" border="0" cellspacing="0" cellpadding="0">
                                                                 <tr>
-                                                                    <td class="fluid-img" style="font-size:0pt; line-height:0pt; text-align:left;"><img src="cid:{{.QrcodePngName}}" width="210" height="210" border="0" alt="" /></td>
+                                                                    <td class="fluid-img" style="font-size:0pt; line-height:0pt; text-align:left;"><img src="cid:{{$.QrcodePngName}}" width="210" height="210" border="0" alt="" /></td>
                                                                 </tr>
                                                             </table>
                                                         </th>
@@ -100,14 +100,14 @@
                                                         <th class="column-top" width="280" style="font-size:0pt; line-height:0pt; padding:0; margin:0; font-weight:normal; vertical-align:top;">
                                                             <table width="100%" border="0" cellspacing="0" cellpadding="0">
                                                                 <tr>
-                                                                    {{if .Client.LdapUser}}
-                                                                    <td class="h4 pb20" style="color:#000000; font-family:'Muli', Arial,sans-serif; font-size:20px; line-height:28px; text-align:left; padding-bottom:20px;">Hello {{.Client.LdapUser.Firstname}} {{.Client.LdapUser.Lastname}}</td>
+                                                                    {{if $.User}}
+                                                                    <td class="h4 pb20" style="color:#000000; font-family:'Muli', Arial,sans-serif; font-size:20px; line-height:28px; text-align:left; padding-bottom:20px;">Hello {{$.User.Firstname}} {{$.User.Lastname}}</td>
                                                                     {{else}}
                                                                     <td class="h4 pb20" style="color:#000000; font-family:'Muli', Arial,sans-serif; font-size:20px; line-height:28px; text-align:left; padding-bottom:20px;">Hello</td>
                                                                     {{end}}
                                                                 </tr>
                                                                 <tr>
-                                                                    <td class="text pb20" style="color:#000000; font-family:Arial,sans-serif; font-size:14px; line-height:26px; text-align:left; padding-bottom:20px;">You or your administrator probably requested this VPN configuration. Scan the Qrcode or open the attached configuration file ({{.Client.GetConfigFileName}}) in the WireGuard VPN client to establish a secure VPN connection.</td>
+                                                                    <td class="text pb20" style="color:#000000; font-family:Arial,sans-serif; font-size:14px; line-height:26px; text-align:left; padding-bottom:20px;">You or your administrator probably requested this VPN configuration. Scan the Qrcode or open the attached configuration file ({{$.Peer.GetConfigFileName}}) in the WireGuard VPN client to establish a secure VPN connection.</td>
                                                                 </tr>
                                                             </table>
                                                         </th>
@@ -170,7 +170,7 @@
                                             <td class="text-footer1 pb10" style="color:#000000; font-family:'Muli', Arial,sans-serif; font-size:16px; line-height:20px; text-align:center; padding-bottom:10px;">This mail was generated using WireGuard Portal.</td>
                                         </tr>
                                         <tr>
-                                            <td class="text-footer2" style="color:#000000; font-family:'Muli', Arial,sans-serif; font-size:12px; line-height:26px; text-align:center;"><a href="{{.PortalUrl}}" target="_blank" class="link" style="color:#000000; text-decoration:none;"><span class="link" style="color:#000000; text-decoration:none;">Visit WireGuard Portal</span></a></td>
+                                            <td class="text-footer2" style="color:#000000; font-family:'Muli', Arial,sans-serif; font-size:12px; line-height:26px; text-align:center;"><a href="{{$.PortalUrl}}" target="_blank" rel="noopener noreferrer" class="link" style="color:#000000; text-decoration:none;"><span class="link" style="color:#000000; text-decoration:none;">Visit WireGuard Portal</span></a></td>
                                         </tr>
                                     </table>
                                 </td>

assets/tpl/index.html

@@ -13,18 +13,69 @@
 
 <body id="page-top" class="d-flex flex-column min-vh-100">
     {{template "prt_nav.html" .}}
-    <div class="container mt-5">
+    <div class="container mt-2">
         <div class="page-header">
             <h1>WireGuard VPN Portal</h1>
         </div>
         {{template "prt_flashes.html" .}}
         <p class="lead">WireGuard® is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. It aims to be faster, simpler, leaner, and more useful than IPsec, while avoiding the massive headache. It intends to be considerably more performant than OpenVPN. </p>
+        <h3 class="mt-3">More Information</h3>
+        <div class="row">
+            <div class="col-lg-4">
+                <div class="card border-secondary mb-4" style="min-height: 15rem;">
+                    <div class="card-header">WireGuard Installation</div>
+                    <div class="card-body">
+                        <h4 class="card-title">Installation</h4>
+                        <p class="card-text">Installation instructions for client software can be found on the official WireGuard website.</p>
+                        <a href="https://www.wireguard.com/install/" title="WireGuard Installation" target="_blank" rel="noopener noreferrer" class="btn btn-primary btn-sm">Open Instructions</a>
+                    </div>
+                </div>
+            </div>
+            <div class="col-lg-4">
+                <div class="card border-secondary mb-4" style="min-height: 15rem;">
+                    <div class="card-header">About WireGuard</div>
+                    <div class="card-body">
+                        <h4 class="card-title">About</h4>
+                        <p class="card-text">WireGuard® is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography.</p>
+                        <a href="https://www.wireguard.com/" title="WireGuard" target="_blank" rel="noopener noreferrer" class="btn btn-primary btn-sm">More details</a>
+                    </div>
+                </div>
+            </div>
+            <div class="col-lg-4">
+                <div class="card border-secondary mb-4" style="min-height: 15rem;">
+                    <div class="card-header">About WireGuard Portal</div>
+                    <div class="card-body">
+                        <h4 class="card-title">WireGuard Portal</h4>
+                        <p class="card-text">WireGuard Portal is a simple, web based configuration portal for WireGuard.</p>
+                        <a href="https://github.com/h44z/wg-portal/" title="WireGuard Portal" target="_blank" rel="noopener noreferrer" class="btn btn-primary btn-sm">More details</a>
+                    </div>
+                </div>
+            </div>
+        </div>
 
-        <h3>VPN Profiles and configuration</h3>
-        <p>You can access your personal VPN configurations via your Userprofile: <a href="/user/profile" class="btn btn-primary" title="User-Profile">Open Userprofile</a></p>
+        <div class="jumbotron jumbotron-home">
+            <h2 class="display-5">VPN Profiles</h2>
+            <p class="lead">You can access and download your personal VPN configurations via your Userprofile.</p>
+            <hr class="my-4">
+            <p>To find all your configured profiles click on the button below.</p>
+            <p class="lead">
+                <a href="/user/profile" class="btn btn-primary btn-lg" title="User-Profile">Open My Profile</a>
+            </p>
+        </div>
+
+        {{with eq $.Session.LoggedIn true}}{{with eq $.Session.IsAdmin true}}
+        <div class="jumbotron jumbotron-home">
+            <h2 class="display-5">Administration Area</h2>
+            <p class="lead">In the administration area you can manage WireGuard peers and the server interface as well as users that are allowed to log in to the WireGuard Portal.</p>
+            <hr class="my-4">
+            <p>To find all your configured profiles click on the button below.</p>
+            <p class="lead">
+                <a href="/admin/" class="btn btn-primary btn-lg" title="WireGuard Administration">Open WireGuard Administration</a>
+                <a href="/admin/users/" class="btn btn-primary btn-lg" title="User Administration">Open User Administration</a>
+            </p>
+        </div>
+        {{end}}{{end}}
 
-        <h3>Client Software</h3>
-        <p>Installation instructions for client software can be found on the official WireGuard website: <a href="https://www.wireguard.com/install/" title="WireGuard" target="_blank">https://www.wireguard.com/</a> </p>
     </div>
     {{template "prt_footer.html" .}}
     <script src="/js/jquery.min.js"></script>

assets/tpl/login.html

@@ -13,30 +13,40 @@
     <link rel="stylesheet" href="/css/signin.css">
 </head>
 
-<body class="bg-gradient-primary">
-    <div class="container">
+<body id="page-top" class="d-flex flex-column min-vh-100">
+    <nav class="navbar navbar-expand-lg navbar-dark bg-primary">
+        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#topNavbar" aria-controls="topNavbar" aria-expanded="false" aria-label="Toggle navigation">
+            <span class="navbar-toggler-icon"></span>
+        </button>
+
+        <a class="navbar-brand" href="/"><img src="{{$.static.WebsiteLogo}}" alt="{{$.static.CompanyName}}"/></a>
+        <div id="topNavbar" class="navbar-collapse collapse">
+        </div><!--/.navbar-collapse -->
+    </nav>
+    <div class="container mt-1">
         <div class="card mt-5">
             <div class="card-header">Please sign in</div>
             <div class="card-body">
                 <form class="form-signin" method="post">
+                    <input type="hidden" name="_csrf" value="{{.Csrf}}">
                     <div class="form-group">
-                        <label for="inputUsername">Username</label>
-                        <input type="text" name="username" class="form-control" id="inputUsername" aria-describedby="usernameHelp" placeholder="Enter username">
-                        <small id="usernameHelp" class="form-text text-muted">Please enter your LDAP username, not the email address.</small>
+                        <label for="inputUsername">Email</label>
+                        <input type="text" name="username" class="form-control" id="inputUsername" aria-describedby="usernameHelp" placeholder="Enter email">
                     </div>
                     <div class="form-group">
                         <label for="inputPassword">Password</label>
                         <input type="password" name="password" class="form-control" id="inputPassword" placeholder="Password">
                     </div>
-                    <button class="btn btn-lg btn-primary btn-block" type="submit">Sign in</button>
+                    <button class="btn btn-lg btn-primary btn-block mt-5" type="submit">Sign in</button>
 
                     {{ if eq .error true }}
-                        <hr>
-                        <span class="text-danger">{{.message}}</span>
+                        <div class="alert alert-danger mt-3" role="alert">
+                            {{.message}}
+                        </div>
                     {{end}}
                 </form>
 
-                <div class="card shadow-lg o-hidden border-0 my-5">
+                <div class="card o-hidden border-0 my-5">
                     <div class="card-body p-0">
                         <a href="/" class="btn btn-white btn-block text-primary btn-user">Go Home</a>
                     </div>

assets/tpl/prt_footer.html

@@ -1,5 +1,5 @@
 <footer class="page-footer mt-auto">
     <div class="container mt-3">
-        <p class="text-muted">Copyright © {{ $.Static.CompanyName }} {{$.Static.Year}} <a class="scroll-to-top" href="#page-top"><i class="fas fa-angle-up"></i></a></p>
+        <p class="text-muted">Copyright © {{ $.Static.CompanyName }} {{$.Static.Year}}, version {{$.Static.Version}} <a class="float-right scroll-to-top" href="#page-top"><i class="fas fa-angle-up"></i></a></p>
     </div>
 </footer>

assets/tpl/prt_nav.html

@@ -1,5 +1,5 @@
 <nav class="navbar navbar-expand-lg navbar-dark bg-primary">
-    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#topNavbar" aria-controls="navbarTogglerDemo03" aria-expanded="false" aria-label="Toggle navigation">
+    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#topNavbar" aria-controls="topNavbar" aria-expanded="false" aria-label="Toggle navigation">
         <span class="navbar-toggler-icon"></span>
     </button>
 
@@ -7,19 +7,41 @@
     <div id="topNavbar" class="navbar-collapse collapse">
         <ul class="navbar-nav mr-auto mt-2 mt-lg-0">
             <li class="nav-spacer"></li>
-            {{with eq $.Session.LoggedIn true}}{{with eq $.Session.IsAdmin true}}{{with eq $.Route "/admin/"}}
+            {{with eq $.Session.LoggedIn true}}{{with eq $.Session.IsAdmin true}}
+            {{with eq $.Route "/admin/"}}
             <form class="form-inline my-2 my-lg-0" method="get">
-                <input class="form-control mr-sm-2" name="search" type="search" placeholder="Search" aria-label="Search" value="{{$.Session.Search}}">
+                <input class="form-control mr-sm-2" name="search" type="search" placeholder="Search" aria-label="Search" value="{{index $.Session.Search "peers"}}">
                 <button class="btn btn-outline-success my-2 my-sm-0" type="submit"><i class="fa fa-search"></i></button>
             </form>
-            {{end}}{{end}}{{end}}
+            {{end}}
+            {{with eq $.Route "/admin/users/"}}
+            <form class="form-inline my-2 my-lg-0" method="get">
+                <input class="form-control mr-sm-2" name="search" type="search" placeholder="Search" aria-label="Search" value="{{index $.Session.Search "users"}}">
+                <button class="btn btn-outline-success my-2 my-sm-0" type="submit"><i class="fa fa-search"></i></button>
+            </form>
+            {{end}}
+            {{end}}{{end}}
         </ul>
+        {{with eq $.Session.LoggedIn true}}{{with eq $.Session.IsAdmin true}}
+        {{with startsWith $.Route "/admin/"}}
+        <form class="form-inline my-2 my-lg-0" method="get">
+            <div class="form-group mr-sm-2">
+                <select name="device" id="inputDevice" class="form-control device-selector">
+                    {{range $d, $dn := $.DeviceNames}}
+                    <option value="{{$d}}" {{if eq $d $.Session.DeviceName}}selected{{end}}>{{$d}} {{if and (ne $dn "") (ne $d $dn)}}({{$dn}}){{end}}</option>
+                    {{end}}
+                </select>
+            </div>
+        </form>
+        {{end}}
+        {{end}}{{end}}
         {{if eq $.Session.LoggedIn true}}
             <div class="nav-item dropdown">
                 <a href="#" class="navbar-text dropdown-toggle" data-toggle="dropdown">{{$.Session.Firstname}} {{$.Session.Lastname}} <span class="caret"></span></a>
                 <div class="dropdown-menu">
                     {{with eq $.Session.LoggedIn true}}{{with eq $.Session.IsAdmin true}}
-                        <a class="dropdown-item" href="/admin/"><i class="fas fa-file-export"></i> Administration</a>
+                        <a class="dropdown-item" href="/admin/"><i class="fas fa-cogs"></i> Administration</a>
+                        <a class="dropdown-item" href="/admin/users/"><i class="fas fa-users-cog"></i> User Management</a>
                         <div class="dropdown-divider"></div>
                     {{end}}{{end}}
                     <a class="dropdown-item" href="/user/profile"><i class="fas fa-user"></i> Profile</a>
@@ -34,6 +56,6 @@
 </nav>
 {{if not $.Device.IsValid}}
 <div class="container">
-    <div class="alert alert-danger">Warning: WireGuard Interface is not fully configured! Configurations may be incomplete and non functional!</div>
+    <div class="alert alert-danger">Warning: WireGuard Interface {{$.Device.DeviceName}} is not fully configured! Configurations may be incomplete and non functional!</div>
 </div>
 {{end}}

assets/tpl/user_index.html

@@ -21,15 +21,16 @@
                 <thead>
                 <tr>
                     <th scope="col" class="list-image-cell"></th><!-- Status and expand -->
-                    <th scope="col"><a href="?sort=id">Identifier <i class="fa fa-fw {{.Session.GetSortIcon "id"}}"></i></a></th>
-                    <th scope="col"><a href="?sort=pubKey">Public Key <i class="fa fa-fw {{.Session.GetSortIcon "pubKey"}}"></i></a></th>
-                    <th scope="col"><a href="?sort=mail">E-Mail <i class="fa fa-fw {{.Session.GetSortIcon "mail"}}"></i></a></th>
-                    <th scope="col"><a href="?sort=ip">IP's <i class="fa fa-fw {{.Session.GetSortIcon "ip"}}"></i></a></th>
-                    <th scope="col"><a href="?sort=handshake">Handshake <i class="fa fa-fw {{.Session.GetSortIcon "handshake"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=id">Identifier <i class="fa fa-fw {{.Session.GetSortIcon "userpeers" "id"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=pubKey">Public Key <i class="fa fa-fw {{.Session.GetSortIcon "userpeers" "pubKey"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=mail">E-Mail <i class="fa fa-fw {{.Session.GetSortIcon "userpeers" "mail"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=ip">IP's <i class="fa fa-fw {{.Session.GetSortIcon "userpeers" "ip"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=handshake">Handshake <i class="fa fa-fw {{.Session.GetSortIcon "userpeers" "handshake"}}"></i></a></th>
                 </tr>
                 </thead>
                 <tbody>
                 {{range $i, $p :=.Peers}}
+                    {{$peerUser:=(userForEmail $.Users $p.Email)}}
                     <tr id="user-pos-{{$i}}" {{if $p.DeactivatedAt}}class="disabled-peer"{{end}}>
                         <th scope="row" class="list-image-cell">
                             <a href="#{{$p.UID}}" data-toggle="collapse" class="collapse-indicator collapsed"></a>
@@ -58,15 +59,14 @@
                                         <div class="tab-content" id="tabContent{{$p.UID}}">
                                             <div id="t1{{$p.UID}}" class="tab-pane fade active show">
                                                 <h4>User details</h4>
-                                                {{if not $p.LdapUser}}
-                                                    <p>No LDAP user-information available...</p>
+                                                {{if not $peerUser}}
+                                                    <p>No user information available...</p>
                                                 {{else}}
                                                     <ul>
-                                                        <li>Firstname: {{$p.LdapUser.Firstname}}</li>
-                                                        <li>Lastname: {{$p.LdapUser.Lastname}}</li>
-                                                        <li>Phone: {{$p.UID}}</li>
-                                                        <li>Mail: {{$p.LdapUser.Mail}}</li>
-                                                        <li>Department: {{$p.UID}}</li>
+                                                        <li>Firstname: {{$peerUser.Firstname}}</li>
+                                                        <li>Lastname: {{$peerUser.Lastname}}</li>
+                                                        <li>Phone: {{$peerUser.Phone}}</li>
+                                                        <li>Mail: {{$peerUser.Email}}</li>
                                                     </ul>
                                                 {{end}}
                                                 <h4>Traffic</h4>

cmd/wg-portal/main.go

@@ -1,19 +1,102 @@
 package main
 
 import (
+	"context"
+	"io/ioutil"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"git.prolicht.digital/pub/healthcheck"
 	"github.com/h44z/wg-portal/internal/server"
-	log "github.com/sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 )
 
 func main() {
-	log.Infof("Starting WireGuard Portal Server...")
+	_ = setupLogger(logrus.StandardLogger())
+
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP)
+
+	logrus.Infof("starting WireGuard Portal Server [%s]...", server.Version)
+
+	// Context for clean shutdown
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// start health check service on port 11223
+	healthcheck.New(healthcheck.WithContext(ctx)).Start()
 
 	service := server.Server{}
-	if err := service.Setup(); err != nil {
-		log.Fatalf("Setup failed: %v", err)
+	if err := service.Setup(ctx); err != nil {
+		logrus.Fatalf("setup failed: %v", err)
 	}
 
-	service.Run()
+	// Attach signal handlers to context
+	go func() {
+		osCall := <-c
+		logrus.Tracef("received system call: %v", osCall)
+		cancel() // cancel the context
+	}()
 
-	log.Infof("Stopped WireGuard Portal Server...")
+	// Start main process in background
+	go service.Run()
+
+	<-ctx.Done() // Wait until the context gets canceled
+
+	// Give goroutines some time to stop gracefully
+	logrus.Info("stopping WireGuard Portal Server...")
+	time.Sleep(2 * time.Second)
+
+	logrus.Infof("stopped WireGuard Portal Server...")
+	logrus.Exit(0)
+}
+
+func setupLogger(logger *logrus.Logger) error {
+	// Check environment variables for logrus settings
+	level, ok := os.LookupEnv("LOG_LEVEL")
+	if !ok {
+		level = "debug" // Default logrus level
+	}
+
+	useJSON, ok := os.LookupEnv("LOG_JSON")
+	if !ok {
+		useJSON = "false" // Default use human readable logging
+	}
+
+	useColor, ok := os.LookupEnv("LOG_COLOR")
+	if !ok {
+		useColor = "true"
+	}
+
+	switch level {
+	case "off":
+		logger.SetOutput(ioutil.Discard)
+	case "info":
+		logger.SetLevel(logrus.InfoLevel)
+	case "debug":
+		logger.SetLevel(logrus.DebugLevel)
+	case "trace":
+		logger.SetLevel(logrus.TraceLevel)
+	}
+
+	var formatter logrus.Formatter
+	if useJSON == "false" {
+		f := new(logrus.TextFormatter)
+		f.TimestampFormat = "2006-01-02 15:04:05"
+		f.FullTimestamp = true
+		if useColor == "true" {
+			f.ForceColors = true
+		}
+		formatter = f
+	} else {
+		f := new(logrus.JSONFormatter)
+		f.TimestampFormat = "2006-01-02 15:04:05"
+		formatter = f
+	}
+
+	logger.SetFormatter(formatter)
+
+	return nil
 }

docker-compose.yml

@@ -1,7 +1,7 @@
 version: '3.6'
 services:
   wg-portal:
-    image: h44z/wg-portal:latest
+    image: h44z/wg-portal:1.0.6
     container_name: wg-portal
     restart: unless-stopped
     cap_add:

efs.go

@@ -0,0 +1,12 @@
+package wg_portal
+
+import "embed"
+
+//go:embed assets/tpl/*
+var Templates embed.FS
+
+//go:embed assets/css/*
+//go:embed assets/fonts/*
+//go:embed assets/img/*
+//go:embed assets/js/*
+var Statics embed.FS

go.mod

@@ -1,21 +1,37 @@
 module github.com/h44z/wg-portal
 
-go 1.14
+go 1.16
 
 require (
+	git.prolicht.digital/pub/healthcheck v1.0.1
+	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751
+	github.com/evanphx/json-patch v0.5.2
 	github.com/gin-contrib/sessions v0.0.3
 	github.com/gin-gonic/gin v1.6.3
 	github.com/go-ldap/ldap/v3 v3.2.4
-	github.com/go-playground/validator/v10 v10.2.0
+	github.com/go-openapi/spec v0.20.3 // indirect
+	github.com/go-openapi/swag v0.19.15 // indirect
+	github.com/go-playground/validator/v10 v10.4.1
 	github.com/gorilla/sessions v1.2.1 // indirect
-	github.com/jordan-wright/email v4.0.1-0.20200917010138-e1c00e156980+incompatible
 	github.com/kelseyhightower/envconfig v1.4.0
+	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/milosgajdos/tenus v0.0.3
-	github.com/sirupsen/logrus v1.7.0
+	github.com/pkg/errors v0.9.1
+	github.com/sirupsen/logrus v1.8.1
 	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
+	github.com/swaggo/gin-swagger v1.3.0
+	github.com/swaggo/swag v1.7.0
 	github.com/tatsushid/go-fastping v0.0.0-20160109021039-d7bb493dee3e
+	github.com/toorop/gin-logrus v0.0.0-20210225092905-2c785434f26f
+	github.com/utrack/gin-csrf v0.0.0-20190424104817-40fb8d2c8fca
+	github.com/xhit/go-simple-mail/v2 v2.8.1
+	golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2
+	golang.org/x/net v0.0.0-20210423184538-5f58ad60dda6 // indirect
+	golang.org/x/sys v0.0.0-20210426080607-c94f62235c83 // indirect
+	golang.org/x/tools v0.1.0 // indirect
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20200609130330-bd2cb7843e1b
-	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
-	gorm.io/driver/sqlite v1.1.3
-	gorm.io/gorm v1.20.5
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
+	gorm.io/driver/mysql v1.0.5
+	gorm.io/driver/sqlite v1.1.4
+	gorm.io/gorm v1.21.6
 )

hooks/build

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# File needs to be called /hooks/build relative to the Dockerfile.
+# Some environment variables are injected into the build hook, see: https://docs.docker.com/docker-hub/builds/advanced/.
+
+GIT_SHORT_HASH=$(echo $SOURCE_COMMIT | cut -c1-7)
+echo "Build hook running for git hash $GIT_SHORT_HASH"
+docker build --build-arg BUILD_IDENTIFIER=$DOCKER_TAG \
+             --build-arg BUILD_VERSION=$GIT_SHORT_HASH \
+             -t $IMAGE_NAME .

internal/authentication/provider.go

@@ -0,0 +1,32 @@
+package authentication
+
+import (
+	"github.com/gin-gonic/gin"
+)
+
+// AuthContext contains all information that the AuthProvider needs to perform the authentication.
+type AuthContext struct {
+	Username string // email or username
+	Password string
+	Callback string // callback for OIDC
+}
+
+type AuthProviderType string
+
+const (
+	AuthProviderTypePassword AuthProviderType = "password"
+	AuthProviderTypeOauth    AuthProviderType = "oauth"
+)
+
+// AuthProvider is a interface that can be implemented by different authentication providers like LDAP, OAUTH, ...
+type AuthProvider interface {
+	GetName() string
+	GetType() AuthProviderType
+	GetPriority() int // lower number = higher priority
+
+	Login(*AuthContext) (string, error)
+	Logout(*AuthContext) error
+	GetUserModel(*AuthContext) (*User, error)
+
+	SetupRoutes(routes *gin.RouterGroup)
+}

internal/authentication/providers/ldap/provider.go

@@ -0,0 +1,183 @@
+package ldap
+
+import (
+	"crypto/tls"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-ldap/ldap/v3"
+	"github.com/h44z/wg-portal/internal/authentication"
+	ldapconfig "github.com/h44z/wg-portal/internal/ldap"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/pkg/errors"
+)
+
+// Provider implements a password login method for an LDAP backend.
+type Provider struct {
+	config *ldapconfig.Config
+}
+
+func New(cfg *ldapconfig.Config) (*Provider, error) {
+	p := &Provider{
+		config: cfg,
+	}
+
+	// test ldap connectivity
+	client, err := p.open()
+	if err != nil {
+		return nil, errors.Wrap(err, "unable to open ldap connection")
+	}
+	defer p.close(client)
+
+	return p, nil
+}
+
+// GetName return provider name
+func (Provider) GetName() string {
+	return string(users.UserSourceLdap)
+}
+
+// GetType return provider type
+func (Provider) GetType() authentication.AuthProviderType {
+	return authentication.AuthProviderTypePassword
+}
+
+// GetPriority return provider priority
+func (Provider) GetPriority() int {
+	return 1 // LDAP password provider
+}
+
+func (provider Provider) SetupRoutes(routes *gin.RouterGroup) {
+	// nothing todo here
+}
+
+func (provider Provider) Login(ctx *authentication.AuthContext) (string, error) {
+	username := strings.ToLower(ctx.Username)
+	password := ctx.Password
+
+	// Validate input
+	if strings.Trim(username, " ") == "" || strings.Trim(password, " ") == "" {
+		return "", errors.New("empty username or password")
+	}
+
+	client, err := provider.open()
+	if err != nil {
+		return "", errors.Wrap(err, "unable to open ldap connection")
+	}
+	defer provider.close(client)
+
+	// Search for the given username
+	attrs := []string{"dn", provider.config.EmailAttribute}
+	loginFilter := strings.Replace(provider.config.LoginFilter, "{{login_identifier}}", username, -1)
+	searchRequest := ldap.NewSearchRequest(
+		provider.config.BaseDN,
+		ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
+		loginFilter,
+		attrs,
+		nil,
+	)
+
+	sr, err := client.Search(searchRequest)
+	if err != nil {
+		return "", errors.Wrap(err, "unable to find user in ldap")
+	}
+
+	if len(sr.Entries) != 1 {
+		return "", errors.Errorf("invalid amount of ldap entries (%d)", len(sr.Entries))
+	}
+
+	// Bind as the user to verify their password
+	userDN := sr.Entries[0].DN
+	err = client.Bind(userDN, password)
+	if err != nil {
+		return "", errors.Wrapf(err, "invalid credentials")
+	}
+
+	return sr.Entries[0].GetAttributeValue(provider.config.EmailAttribute), nil
+}
+
+func (provider Provider) Logout(context *authentication.AuthContext) error {
+	return nil // nothing todo here
+}
+
+func (provider Provider) GetUserModel(ctx *authentication.AuthContext) (*authentication.User, error) {
+	username := strings.ToLower(ctx.Username)
+
+	// Validate input
+	if strings.Trim(username, " ") == "" {
+		return nil, errors.New("empty username")
+	}
+
+	client, err := provider.open()
+	if err != nil {
+		return nil, errors.Wrap(err, "unable to open ldap connection")
+	}
+	defer provider.close(client)
+
+	// Search for the given username
+	attrs := []string{"dn", provider.config.EmailAttribute, provider.config.FirstNameAttribute, provider.config.LastNameAttribute,
+		provider.config.PhoneAttribute, provider.config.GroupMemberAttribute}
+	loginFilter := strings.Replace(provider.config.LoginFilter, "{{login_identifier}}", username, -1)
+	searchRequest := ldap.NewSearchRequest(
+		provider.config.BaseDN,
+		ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
+		loginFilter,
+		attrs,
+		nil,
+	)
+
+	sr, err := client.Search(searchRequest)
+	if err != nil {
+		return nil, errors.Wrap(err, "unable to find user in ldap")
+	}
+
+	if len(sr.Entries) != 1 {
+		return nil, errors.Wrapf(err, "invalid amount of ldap entries (%d)", len(sr.Entries))
+	}
+
+	user := &authentication.User{
+		Firstname: sr.Entries[0].GetAttributeValue(provider.config.FirstNameAttribute),
+		Lastname:  sr.Entries[0].GetAttributeValue(provider.config.LastNameAttribute),
+		Email:     sr.Entries[0].GetAttributeValue(provider.config.EmailAttribute),
+		Phone:     sr.Entries[0].GetAttributeValue(provider.config.PhoneAttribute),
+		IsAdmin:   false,
+	}
+
+	for _, group := range sr.Entries[0].GetAttributeValues(provider.config.GroupMemberAttribute) {
+		if group == provider.config.AdminLdapGroup {
+			user.IsAdmin = true
+			break
+		}
+	}
+
+	return user, nil
+}
+
+func (provider Provider) open() (*ldap.Conn, error) {
+	tlsConfig := &tls.Config{InsecureSkipVerify: !provider.config.CertValidation}
+	conn, err := ldap.DialURL(provider.config.URL, ldap.DialWithTLSConfig(tlsConfig))
+	if err != nil {
+		return nil, err
+	}
+
+	if provider.config.StartTLS {
+		// Reconnect with TLS
+		err = conn.StartTLS(tlsConfig)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	err = conn.Bind(provider.config.BindUser, provider.config.BindPass)
+	if err != nil {
+		return nil, err
+	}
+
+	return conn, nil
+}
+
+func (provider Provider) close(conn *ldap.Conn) {
+	if conn != nil {
+		conn.Close()
+	}
+}

internal/authentication/providers/password/provider.go

@@ -0,0 +1,195 @@
+package password
+
+import (
+	"fmt"
+	"math/rand"
+	"regexp"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/h44z/wg-portal/internal/authentication"
+	"github.com/h44z/wg-portal/internal/common"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/pkg/errors"
+	"golang.org/x/crypto/bcrypt"
+	"gorm.io/gorm"
+)
+
+var emailRegex = regexp.MustCompile("^[a-zA-Z0-9.!#$%&'*+\\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$")
+
+// Provider implements a password login method for a database backend.
+type Provider struct {
+	db *gorm.DB
+}
+
+func New(cfg *common.DatabaseConfig) (*Provider, error) {
+	p := &Provider{}
+
+	var err error
+	p.db, err = common.GetDatabaseForConfig(cfg)
+	if err != nil {
+		return nil, errors.Wrapf(err, "failed to setup authentication database %s", cfg.Database)
+	}
+
+	return p, nil
+}
+
+// GetName return provider name
+func (Provider) GetName() string {
+	return string(users.UserSourceDatabase)
+}
+
+// GetType return provider type
+func (Provider) GetType() authentication.AuthProviderType {
+	return authentication.AuthProviderTypePassword
+}
+
+// GetPriority return provider priority
+func (Provider) GetPriority() int {
+	return 0 // DB password provider = highest prio
+}
+
+func (provider Provider) SetupRoutes(routes *gin.RouterGroup) {
+	// nothing todo here
+}
+
+func (provider Provider) Login(ctx *authentication.AuthContext) (string, error) {
+	username := strings.ToLower(ctx.Username)
+	password := ctx.Password
+
+	// Validate input
+	if strings.Trim(username, " ") == "" || strings.Trim(password, " ") == "" {
+		return "", errors.New("empty username or password")
+	}
+
+	// Authenticate against the users database
+	user := users.User{}
+	provider.db.Where("email = ?", username).First(&user)
+
+	if user.Email == "" {
+		return "", errors.New("invalid username")
+	}
+
+	// Compare the stored hashed password, with the hashed version of the password that was received
+	if err := bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password)); err != nil {
+		return "", errors.New("invalid password")
+	}
+
+	return user.Email, nil
+}
+
+func (provider Provider) Logout(context *authentication.AuthContext) error {
+	return nil // nothing todo here
+}
+
+func (provider Provider) GetUserModel(ctx *authentication.AuthContext) (*authentication.User, error) {
+	username := strings.ToLower(ctx.Username)
+
+	// Validate input
+	if strings.Trim(username, " ") == "" {
+		return nil, errors.New("empty username")
+	}
+
+	// Fetch usermodel from users database
+	user := users.User{}
+	provider.db.Where("email = ?", username).First(&user)
+	if user.Email != username {
+		return nil, errors.New("invalid or disabled username")
+	}
+
+	return &authentication.User{
+		Email:     user.Email,
+		IsAdmin:   user.IsAdmin,
+		Firstname: user.Firstname,
+		Lastname:  user.Lastname,
+		Phone:     user.Phone,
+	}, nil
+}
+
+func (provider Provider) InitializeAdmin(email, password string) error {
+	email = strings.ToLower(email)
+	if !emailRegex.MatchString(email) {
+		return errors.New("admin username must be an email address")
+	}
+
+	admin := users.User{}
+	provider.db.Unscoped().Where("email = ?", email).FirstOrInit(&admin)
+
+	// newly created admin
+	if admin.Email != email {
+		// For security reasons a random admin password will be generated if the default one is still in use!
+		if password == "wgportal" {
+			password = generateRandomPassword()
+
+			fmt.Println("#############################################")
+			fmt.Println("Administrator credentials:")
+			fmt.Println("  Email:    ", email)
+			fmt.Println("  Password: ", password)
+			fmt.Println()
+			fmt.Println("This information will only be displayed once!")
+			fmt.Println("#############################################")
+		}
+		hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+		if err != nil {
+			return errors.Wrap(err, "failed to hash admin password")
+		}
+
+		admin.Email = email
+		admin.Password = users.PrivateString(hashedPassword)
+		admin.Firstname = "WireGuard"
+		admin.Lastname = "Administrator"
+		admin.CreatedAt = time.Now()
+		admin.UpdatedAt = time.Now()
+		admin.IsAdmin = true
+		admin.Source = users.UserSourceDatabase
+
+		res := provider.db.Create(admin)
+		if res.Error != nil {
+			return errors.Wrapf(res.Error, "failed to create admin %s", admin.Email)
+		}
+	}
+
+	// update/reactivate
+	if !admin.IsAdmin || admin.DeletedAt.Valid {
+		// For security reasons a random admin password will be generated if the default one is still in use!
+		if password == "wgportal" {
+			password = generateRandomPassword()
+
+			fmt.Println("#############################################")
+			fmt.Println("Administrator credentials:")
+			fmt.Println("  Email:    ", email)
+			fmt.Println("  Password: ", password)
+			fmt.Println()
+			fmt.Println("This information will only be displayed once!")
+			fmt.Println("#############################################")
+		}
+
+		hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+		if err != nil {
+			return errors.Wrap(err, "failed to hash admin password")
+		}
+
+		admin.Password = users.PrivateString(hashedPassword)
+		admin.IsAdmin = true
+		admin.UpdatedAt = time.Now()
+
+		res := provider.db.Save(admin)
+		if res.Error != nil {
+			return errors.Wrapf(res.Error, "failed to update admin %s", admin.Email)
+		}
+	}
+
+	return nil
+}
+
+func generateRandomPassword() string {
+	rand.Seed(time.Now().Unix())
+	var randPassword strings.Builder
+	charSet := "abcdedfghijklmnopqrstABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!#$"
+	for i := 0; i < 12; i++ {
+		random := rand.Intn(len(charSet))
+		randPassword.WriteString(string(charSet[random]))
+	}
+	return randPassword.String()
+}

internal/authentication/user.go

@@ -0,0 +1,12 @@
+package authentication
+
+// User represents the data that can be retrieved from authentication backends.
+type User struct {
+	Email   string
+	IsAdmin bool
+
+	// optional fields
+	Firstname string
+	Lastname  string
+	Phone     string
+}

internal/common/configuration.go

@@ -1,120 +0,0 @@
-package common
-
-import (
-	"errors"
-	"os"
-	"reflect"
-	"runtime"
-
-	"github.com/h44z/wg-portal/internal/wireguard"
-
-	"github.com/h44z/wg-portal/internal/ldap"
-	"github.com/kelseyhightower/envconfig"
-	log "github.com/sirupsen/logrus"
-	"gopkg.in/yaml.v3"
-)
-
-var ErrInvalidSpecification = errors.New("specification must be a struct pointer")
-
-// LoadConfigFile parses yaml files. It uses to yaml annotation to store the data in a struct.
-func loadConfigFile(cfg interface{}, filename string) error {
-	s := reflect.ValueOf(cfg)
-
-	if s.Kind() != reflect.Ptr {
-		return ErrInvalidSpecification
-	}
-	s = s.Elem()
-	if s.Kind() != reflect.Struct {
-		return ErrInvalidSpecification
-	}
-
-	f, err := os.Open(filename)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	decoder := yaml.NewDecoder(f)
-	err = decoder.Decode(cfg)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// LoadConfigEnv processes envconfig annotations and loads environment variables to the given configuration struct.
-func loadConfigEnv(cfg interface{}) error {
-	err := envconfig.Process("", cfg)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-type Config struct {
-	Core struct {
-		ListeningAddress       string `yaml:"listeningAddress" envconfig:"LISTENING_ADDRESS"`
-		ExternalUrl            string `yaml:"externalUrl" envconfig:"EXTERNAL_URL"`
-		Title                  string `yaml:"title" envconfig:"WEBSITE_TITLE"`
-		CompanyName            string `yaml:"company" envconfig:"COMPANY_NAME"`
-		MailFrom               string `yaml:"mailfrom" envconfig:"MAIL_FROM"`
-		AdminUser              string `yaml:"adminUser" envconfig:"ADMIN_USER"` // optional, non LDAP admin user
-		AdminPassword          string `yaml:"adminPass" envconfig:"ADMIN_PASS"`
-		DatabasePath           string `yaml:"database" envconfig:"DATABASE_PATH"`
-		EditableKeys           bool   `yaml:"editableKeys" envconfig:"EDITABLE_KEYS"`
-		CreateInterfaceOnLogin bool   `yaml:"createOnLogin" envconfig:"CREATE_INTERFACE_ON_LOGIN"`
-		SyncLdapStatus         bool   `yaml:"syncLdapStatus" envconfig:"SYNC_LDAP_STATUS"` // disable account if disabled in ldap
-	} `yaml:"core"`
-	Email          MailConfig       `yaml:"email"`
-	LDAP           ldap.Config      `yaml:"ldap"`
-	WG             wireguard.Config `yaml:"wg"`
-	AdminLdapGroup string           `yaml:"adminLdapGroup" envconfig:"ADMIN_LDAP_GROUP"`
-}
-
-func NewConfig() *Config {
-	cfg := &Config{}
-
-	// Default config
-	cfg.Core.ListeningAddress = ":8123"
-	cfg.Core.Title = "WireGuard VPN"
-	cfg.Core.CompanyName = "WireGuard Portal"
-	cfg.Core.ExternalUrl = "http://localhost:8123"
-	cfg.Core.MailFrom = "WireGuard VPN <noreply@company.com>"
-	cfg.Core.AdminUser = "" // non-ldap admin access is disabled by default
-	cfg.Core.AdminPassword = ""
-	cfg.Core.DatabasePath = "data/wg_portal.db"
-	cfg.LDAP.URL = "ldap://srv-ad01.company.local:389"
-	cfg.LDAP.BaseDN = "DC=COMPANY,DC=LOCAL"
-	cfg.LDAP.StartTLS = true
-	cfg.LDAP.BindUser = "company\\\\ldap_wireguard"
-	cfg.LDAP.BindPass = "SuperSecret"
-	cfg.WG.DeviceName = "wg0"
-	cfg.WG.WireGuardConfig = "/etc/wireguard/wg0.conf"
-	cfg.WG.ManageIPAddresses = true
-	cfg.AdminLdapGroup = "CN=WireGuardAdmins,OU=_O_IT,DC=COMPANY,DC=LOCAL"
-	cfg.Email.Host = "127.0.0.1"
-	cfg.Email.Port = 25
-
-	// Load config from file and environment
-	cfgFile, ok := os.LookupEnv("CONFIG_FILE")
-	if !ok {
-		cfgFile = "config.yml" // Default config file
-	}
-	err := loadConfigFile(cfg, cfgFile)
-	if err != nil {
-		log.Warnf("unable to load config.yml file: %v, using default configuration...", err)
-	}
-	err = loadConfigEnv(cfg)
-	if err != nil {
-		log.Warnf("unable to load environment config: %v", err)
-	}
-
-	if cfg.WG.ManageIPAddresses && runtime.GOOS != "linux" {
-		log.Warnf("Managing IP addresses only works on linux! Feature disabled.")
-		cfg.WG.ManageIPAddresses = false
-	}
-
-	return cfg
-}

internal/common/db.go

@@ -0,0 +1,160 @@
+package common
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"sort"
+	"time"
+
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"gorm.io/driver/mysql"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+)
+
+func init() {
+	migrations = append(migrations, Migration{
+		version: "1.0.7",
+		migrateFn: func(db *gorm.DB) error {
+			if err := db.Exec("UPDATE users SET email = LOWER(email)").Error; err != nil {
+				return errors.Wrap(err, "failed to convert user emails to lower case")
+			}
+			if err := db.Exec("UPDATE peers SET email = LOWER(email)").Error; err != nil {
+				return errors.Wrap(err, "failed to convert peer emails to lower case")
+			}
+			logrus.Infof("upgraded database format to version 1.0.7")
+			return nil
+		},
+	})
+	migrations = append(migrations, Migration{
+		version: "1.0.8",
+		migrateFn: func(db *gorm.DB) error {
+			logrus.Infof("upgraded database format to version 1.0.8")
+			return nil
+		},
+	})
+}
+
+type SupportedDatabase string
+
+const (
+	SupportedDatabaseMySQL  SupportedDatabase = "mysql"
+	SupportedDatabaseSQLite SupportedDatabase = "sqlite"
+)
+
+type DatabaseConfig struct {
+	Typ      SupportedDatabase `yaml:"typ" envconfig:"DATABASE_TYPE"` //mysql or sqlite
+	Host     string            `yaml:"host" envconfig:"DATABASE_HOST"`
+	Port     int               `yaml:"port" envconfig:"DATABASE_PORT"`
+	Database string            `yaml:"database" envconfig:"DATABASE_NAME"` // On SQLite: the database file-path, otherwise the database name
+	User     string            `yaml:"user" envconfig:"DATABASE_USERNAME"`
+	Password string            `yaml:"password" envconfig:"DATABASE_PASSWORD"`
+}
+
+func GetDatabaseForConfig(cfg *DatabaseConfig) (db *gorm.DB, err error) {
+	switch cfg.Typ {
+	case SupportedDatabaseSQLite:
+		if _, err = os.Stat(filepath.Dir(cfg.Database)); os.IsNotExist(err) {
+			if err = os.MkdirAll(filepath.Dir(cfg.Database), 0700); err != nil {
+				return
+			}
+		}
+		db, err = gorm.Open(sqlite.Open(cfg.Database), &gorm.Config{DisableForeignKeyConstraintWhenMigrating: true})
+		if err != nil {
+			return
+		}
+	case SupportedDatabaseMySQL:
+		connectionString := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local", cfg.User, cfg.Password, cfg.Host, cfg.Port, cfg.Database)
+		db, err = gorm.Open(mysql.Open(connectionString), &gorm.Config{})
+		if err != nil {
+			return
+		}
+
+		sqlDB, _ := db.DB()
+		sqlDB.SetConnMaxLifetime(time.Minute * 5)
+		sqlDB.SetMaxIdleConns(2)
+		sqlDB.SetMaxOpenConns(10)
+		err = sqlDB.Ping() // This DOES open a connection if necessary. This makes sure the database is accessible
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to ping mysql authentication database")
+		}
+	}
+
+	// Enable Logger (logrus)
+	logCfg := logger.Config{
+		SlowThreshold: time.Second, // all slower than one second
+		Colorful:      false,
+		LogLevel:      logger.Silent, // default: log nothing
+	}
+
+	if logrus.StandardLogger().GetLevel() == logrus.TraceLevel {
+		logCfg.LogLevel = logger.Info
+		logCfg.SlowThreshold = 500 * time.Millisecond // all slower than half a second
+	}
+
+	db.Config.Logger = logger.New(logrus.StandardLogger(), logCfg)
+	return
+}
+
+type DatabaseMigrationInfo struct {
+	Version string `gorm:"primaryKey"`
+	Applied time.Time
+}
+
+type Migration struct {
+	version   string
+	migrateFn func(db *gorm.DB) error
+}
+
+var migrations []Migration
+
+func MigrateDatabase(db *gorm.DB, version string) error {
+	if err := db.AutoMigrate(&DatabaseMigrationInfo{}); err != nil {
+		return errors.Wrap(err, "failed to migrate version database")
+	}
+
+	existingMigration := DatabaseMigrationInfo{}
+	db.Where("version = ?", version).FirstOrInit(&existingMigration)
+
+	if existingMigration.Version == "" {
+		lastVersion := DatabaseMigrationInfo{}
+		db.Order("applied desc, version desc").FirstOrInit(&lastVersion)
+
+		if lastVersion.Version == "" {
+			// fresh database, no migrations to apply
+			res := db.Create(&DatabaseMigrationInfo{
+				Version: version,
+				Applied: time.Now(),
+			})
+			if res.Error != nil {
+				return errors.Wrapf(res.Error, "failed to write version %s to database", version)
+			}
+			return nil
+		}
+
+		sort.Slice(migrations, func(i, j int) bool {
+			return migrations[i].version < migrations[j].version
+		})
+
+		for _, migration := range migrations {
+			if migration.version > lastVersion.Version {
+				if err := migration.migrateFn(db); err != nil {
+					return errors.Wrapf(err, "failed to migrate to version %s", migration.version)
+				}
+
+				res := db.Create(&DatabaseMigrationInfo{
+					Version: migration.version,
+					Applied: time.Now(),
+				})
+				if res.Error != nil {
+					return errors.Wrapf(res.Error, "failed to write version %s to database", migration.version)
+				}
+			}
+		}
+	}
+
+	return nil
+}

internal/common/email.go

@@ -3,20 +3,38 @@ package common
 import (
 	"crypto/tls"
 	"io"
-	"net/smtp"
-	"strconv"
-	"strings"
+	"io/ioutil"
+	"time"
 
-	"github.com/jordan-wright/email"
+	"github.com/pkg/errors"
+	mail "github.com/xhit/go-simple-mail/v2"
+)
+
+type MailEncryption string
+
+const (
+	MailEncryptionNone     MailEncryption = "none"
+	MailEncryptionTLS      MailEncryption = "tls"
+	MailEncryptionStartTLS MailEncryption = "starttls"
+)
+
+type MailAuthType string
+
+const (
+	MailAuthPlain   MailAuthType = "plain"
+	MailAuthLogin   MailAuthType = "login"
+	MailAuthCramMD5 MailAuthType = "crammd5"
 )
 
 type MailConfig struct {
 	Host           string         `yaml:"host" envconfig:"EMAIL_HOST"`
 	Port           int            `yaml:"port" envconfig:"EMAIL_PORT"`
-	TLS            bool   `yaml:"tls" envconfig:"EMAIL_TLS"`
+	TLS            bool           `yaml:"tls" envconfig:"EMAIL_TLS"` // Deprecated, use MailConfig.Encryption instead.
+	Encryption     MailEncryption `yaml:"encryption" envconfig:"EMAIL_ENCRYPTION"`
 	CertValidation bool           `yaml:"certcheck" envconfig:"EMAIL_CERT_VALIDATION"`
 	Username       string         `yaml:"user" envconfig:"EMAIL_USERNAME"`
 	Password       string         `yaml:"pass" envconfig:"EMAIL_PASSWORD"`
+	AuthType       MailAuthType   `yaml:"auth" envconfig:"EMAIL_AUTHTYPE"`
 }
 
 type MailAttachment struct {
@@ -26,54 +44,74 @@ type MailAttachment struct {
 	Embedded    bool
 }
 
-// SendEmailWithAttachments sends a mail with attachments.
-func SendEmailWithAttachments(cfg MailConfig, sender, replyTo, subject, body string, htmlBody string, receivers []string, attachments []MailAttachment) error {
-	e := email.NewEmail()
+// SendEmailWithAttachments sends a mail with optional attachments.
+func SendEmailWithAttachments(cfg MailConfig, sender, replyTo, subject, body, htmlBody string, receivers []string, attachments []MailAttachment) error {
+	srv := mail.NewSMTPClient()
+
+	srv.ConnectTimeout = 30 * time.Second
+	srv.SendTimeout = 30 * time.Second
+	srv.Host = cfg.Host
+	srv.Port = cfg.Port
+	srv.Username = cfg.Username
+	srv.Password = cfg.Password
+
+	// TODO: remove this once the deprecated MailConfig.TLS config option has been removed
+	if cfg.TLS {
+		cfg.Encryption = MailEncryptionStartTLS
+	}
+	switch cfg.Encryption {
+	case MailEncryptionTLS:
+		srv.Encryption = mail.EncryptionSSLTLS
+	case MailEncryptionStartTLS:
+		srv.Encryption = mail.EncryptionSTARTTLS
+	default: // MailEncryptionNone
+		srv.Encryption = mail.EncryptionNone
+	}
+	srv.TLSConfig = &tls.Config{ServerName: srv.Host, InsecureSkipVerify: !cfg.CertValidation}
+	switch cfg.AuthType {
+	case MailAuthPlain:
+		srv.Authentication = mail.AuthPlain
+	case MailAuthLogin:
+		srv.Authentication = mail.AuthLogin
+	case MailAuthCramMD5:
+		srv.Authentication = mail.AuthCRAMMD5
+	}
+
+	client, err := srv.Connect()
+	if err != nil {
+		return errors.Wrap(err, "failed to connect via SMTP")
+	}
 
-	hostname := cfg.Host + ":" + strconv.Itoa(cfg.Port)
-	subject = strings.Trim(subject, "\n\r\t")
-	sender = strings.Trim(sender, "\n\r\t")
-	replyTo = strings.Trim(replyTo, "\n\r\t")
 	if replyTo == "" {
 		replyTo = sender
 	}
 
-	var auth smtp.Auth
-	if cfg.Username == "" {
-		auth = nil
-	} else {
-		// Set up authentication information.
-		auth = smtp.PlainAuth(
-			"",
-			cfg.Username,
-			cfg.Password,
-			cfg.Host,
-		)
-	}
+	email := mail.NewMSG()
+	email.SetFrom(sender).
+		AddTo(receivers...).
+		SetReplyTo(replyTo).
+		SetSubject(subject)
 
-	// Set email data.
-	e.From = sender
-	e.To = receivers
-	e.ReplyTo = []string{replyTo}
-	e.Subject = subject
-	e.Text = []byte(body)
-	if htmlBody != "" {
-		e.HTML = []byte(htmlBody)
-	}
+	email.SetBody(mail.TextHTML, htmlBody)
+	email.AddAlternative(mail.TextPlain, body)
 
 	for _, attachment := range attachments {
-		a, err := e.Attach(attachment.Data, attachment.Name, attachment.ContentType)
+		attachmentData, err := ioutil.ReadAll(attachment.Data)
 		if err != nil {
-			return err
+			return errors.Wrapf(err, "failed to read attachment data for %s", attachment.Name)
 		}
+
 		if attachment.Embedded {
-			a.HTMLRelated = true
+			email.AddInlineData(attachmentData, attachment.Name, attachment.ContentType)
+		} else {
+			email.AddAttachmentData(attachmentData, attachment.Name, attachment.ContentType)
 		}
 	}
 
-	if cfg.CertValidation {
-		return e.Send(hostname, auth)
-	} else {
-		return e.SendWithStartTLS(hostname, auth, &tls.Config{InsecureSkipVerify: true})
+	// Call Send and pass the client
+	err = email.Send(client)
+	if err != nil {
+		return errors.Wrapf(err, "failed to send email")
 	}
+	return nil
 }

internal/common/util.go

@@ -40,6 +40,8 @@ func IsIPv6(address string) bool {
 	return ip.To4() == nil
 }
 
+// ParseStringList converts a comma separated string into a list of strings.
+// It also trims spaces from each element of the list.
 func ParseStringList(lst string) []string {
 	tokens := strings.Split(lst, ",")
 	validatedTokens := make([]string, 0, len(tokens))
@@ -53,10 +55,21 @@ func ParseStringList(lst string) []string {
 	return validatedTokens
 }
 
+// ListToString converts a list of strings into a comma separated string.
 func ListToString(lst []string) string {
 	return strings.Join(lst, ", ")
 }
 
+// ListContains checks if a needle exists in the given list.
+func ListContains(lst []string, needle string) bool {
+	for _, entry := range lst {
+		if entry == needle {
+			return true
+		}
+	}
+	return false
+}
+
 // https://yourbasic.org/golang/formatting-byte-size-to-human-readable-format/
 func ByteCountSI(b int64) string {
 	const unit = 1000

internal/ldap/authentication.go

@@ -1,94 +0,0 @@
-package ldap
-
-import (
-	"crypto/tls"
-	"fmt"
-
-	"github.com/go-ldap/ldap/v3"
-)
-
-type Authentication struct {
-	Cfg *Config
-}
-
-func NewAuthentication(config Config) Authentication {
-	a := Authentication{
-		Cfg: &config,
-	}
-
-	return a
-}
-
-func (a Authentication) open() (*ldap.Conn, error) {
-	conn, err := ldap.DialURL(a.Cfg.URL)
-	if err != nil {
-		return nil, err
-	}
-
-	if a.Cfg.StartTLS {
-		// Reconnect with TLS
-		err = conn.StartTLS(&tls.Config{InsecureSkipVerify: true})
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	err = conn.Bind(a.Cfg.BindUser, a.Cfg.BindPass)
-	if err != nil {
-		return nil, err
-	}
-
-	return conn, nil
-}
-
-func (a Authentication) close(conn *ldap.Conn) {
-	if conn != nil {
-		conn.Close()
-	}
-}
-
-func (a Authentication) CheckLogin(username, password string) bool {
-	return a.CheckCustomLogin("sAMAccountName", username, password)
-}
-
-func (a Authentication) CheckCustomLogin(userIdentifier, username, password string) bool {
-	client, err := a.open()
-	if err != nil {
-		return false
-	}
-	defer a.close(client)
-
-	// Search for the given username
-	searchRequest := ldap.NewSearchRequest(
-		a.Cfg.BaseDN,
-		ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
-		fmt.Sprintf("(&(objectClass=organizationalPerson)(%s=%s))", userIdentifier, username),
-		[]string{"dn", "userAccountControl"},
-		nil,
-	)
-
-	sr, err := client.Search(searchRequest)
-	if err != nil {
-		return false
-	}
-
-	if len(sr.Entries) != 1 {
-		return false
-	}
-
-	userDN := sr.Entries[0].DN
-
-	// Check if user is disabled, if so deny login
-	uac := sr.Entries[0].GetAttributeValue("userAccountControl")
-	if uac != "" && IsLdapUserDisabled(uac) {
-		return false
-	}
-
-	// Bind as the user to verify their password
-	err = client.Bind(userDN, password)
-	if err != nil {
-		return false
-	}
-
-	return true
-}

internal/ldap/config.go

@@ -0,0 +1,27 @@
+package ldap
+
+type Type string
+
+const (
+	TypeActiveDirectory Type = "AD"
+	TypeOpenLDAP        Type = "OpenLDAP"
+)
+
+type Config struct {
+	URL            string `yaml:"url" envconfig:"LDAP_URL"`
+	StartTLS       bool   `yaml:"startTLS" envconfig:"LDAP_STARTTLS"`
+	CertValidation bool   `yaml:"certcheck" envconfig:"LDAP_CERT_VALIDATION"`
+	BaseDN         string `yaml:"dn" envconfig:"LDAP_BASEDN"`
+	BindUser       string `yaml:"user" envconfig:"LDAP_USER"`
+	BindPass       string `yaml:"pass" envconfig:"LDAP_PASSWORD"`
+
+	EmailAttribute       string `yaml:"attrEmail" envconfig:"LDAP_ATTR_EMAIL"`
+	FirstNameAttribute   string `yaml:"attrFirstname" envconfig:"LDAP_ATTR_FIRSTNAME"`
+	LastNameAttribute    string `yaml:"attrLastname" envconfig:"LDAP_ATTR_LASTNAME"`
+	PhoneAttribute       string `yaml:"attrPhone" envconfig:"LDAP_ATTR_PHONE"`
+	GroupMemberAttribute string `yaml:"attrGroups" envconfig:"LDAP_ATTR_GROUPS"`
+
+	LoginFilter    string `yaml:"loginFilter" envconfig:"LDAP_LOGIN_FILTER"` // {{login_identifier}} gets replaced with the login email address
+	SyncFilter     string `yaml:"syncFilter" envconfig:"LDAP_SYNC_FILTER"`
+	AdminLdapGroup string `yaml:"adminGroup" envconfig:"LDAP_ADMIN_GROUP"` // Members of this group receive admin rights in WG-Portal
+}

internal/ldap/ldap.go

@@ -1,9 +1,84 @@
 package ldap
 
-type Config struct {
-	URL      string `yaml:"url" envconfig:"LDAP_URL"`
-	StartTLS bool   `yaml:"startTLS" envconfig:"LDAP_STARTTLS"`
-	BaseDN   string `yaml:"dn" envconfig:"LDAP_BASEDN"`
-	BindUser string `yaml:"user" envconfig:"LDAP_USER"`
-	BindPass string `yaml:"pass" envconfig:"LDAP_PASSWORD"`
+import (
+	"crypto/tls"
+
+	"github.com/go-ldap/ldap/v3"
+	"github.com/pkg/errors"
+)
+
+type RawLdapData struct {
+	DN            string
+	Attributes    map[string]string
+	RawAttributes map[string][][]byte
+}
+
+func Open(cfg *Config) (*ldap.Conn, error) {
+	tlsConfig := &tls.Config{InsecureSkipVerify: !cfg.CertValidation}
+	conn, err := ldap.DialURL(cfg.URL, ldap.DialWithTLSConfig(tlsConfig))
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to connect to LDAP")
+	}
+
+	if cfg.StartTLS {
+		// Reconnect with TLS
+		err = conn.StartTLS(tlsConfig)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to star TLS on connection")
+		}
+	}
+
+	err = conn.Bind(cfg.BindUser, cfg.BindPass)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to bind to LDAP")
+	}
+
+	return conn, nil
+}
+
+func Close(conn *ldap.Conn) {
+	if conn != nil {
+		conn.Close()
+	}
+}
+
+func FindAllUsers(cfg *Config) ([]RawLdapData, error) {
+	client, err := Open(cfg)
+	if err != nil {
+		return nil, errors.WithMessage(err, "failed to open ldap connection")
+	}
+	defer Close(client)
+
+	// Search all users
+	attrs := []string{"dn", cfg.EmailAttribute, cfg.EmailAttribute, cfg.FirstNameAttribute, cfg.LastNameAttribute,
+		cfg.PhoneAttribute, cfg.GroupMemberAttribute}
+	searchRequest := ldap.NewSearchRequest(
+		cfg.BaseDN,
+		ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
+		cfg.SyncFilter, attrs, nil,
+	)
+
+	sr, err := client.Search(searchRequest)
+	if err != nil {
+		return nil, errors.Wrapf(err, "failed to search in ldap")
+	}
+
+	tmpData := make([]RawLdapData, 0, len(sr.Entries))
+
+	for _, entry := range sr.Entries {
+		tmp := RawLdapData{
+			DN:            entry.DN,
+			Attributes:    make(map[string]string, len(attrs)),
+			RawAttributes: make(map[string][][]byte, len(attrs)),
+		}
+
+		for _, field := range attrs {
+			tmp.Attributes[field] = entry.GetAttributeValue(field)
+			tmp.RawAttributes[field] = entry.GetRawAttributeValues(field)
+		}
+
+		tmpData = append(tmpData, tmp)
+	}
+
+	return tmpData, nil
 }

internal/ldap/usercache.go

@@ -1,338 +0,0 @@
-package ldap
-
-import (
-	"crypto/md5"
-	"crypto/tls"
-	"fmt"
-	"sort"
-	"strconv"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/go-ldap/ldap/v3"
-	log "github.com/sirupsen/logrus"
-)
-
-var Fields = []string{"givenName", "sn", "mail", "department", "memberOf", "sAMAccountName", "telephoneNumber",
-	"mobile", "displayName", "cn", "title", "company", "manager", "streetAddress", "employeeID", "memberOf", "l",
-	"st", "postalCode", "co", "facsimileTelephoneNumber", "pager", "thumbnailPhoto", "otherMobile",
-	"extensionAttribute2", "distinguishedName", "userAccountControl"}
-
-// --------------------------------------------------------------------------------------------------------------------
-// Cache Data Store
-// --------------------------------------------------------------------------------------------------------------------
-
-type UserCacheHolder interface {
-	Clear()
-	SetAllUsers(users []RawLdapData)
-	GetUser(dn string) *RawLdapData
-	GetUsers() []*RawLdapData
-}
-
-type RawLdapData struct {
-	DN            string
-	Attributes    map[string]string
-	RawAttributes map[string][][]byte
-}
-
-// --------------------------------------------------------------------------------------------------------------------
-// Sample Cache Data store
-// --------------------------------------------------------------------------------------------------------------------
-
-type UserCacheHolderEntry struct {
-	RawLdapData
-	Username  string
-	Mail      string
-	Firstname string
-	Lastname  string
-	Groups    []string
-}
-
-func (e *UserCacheHolderEntry) CalcFieldsFromAttributes() {
-	e.Username = strings.ToLower(e.Attributes["sAMAccountName"])
-	e.Mail = e.Attributes["mail"]
-	e.Firstname = e.Attributes["givenName"]
-	e.Lastname = e.Attributes["sn"]
-	e.Groups = make([]string, len(e.RawAttributes["memberOf"]))
-	for i, group := range e.RawAttributes["memberOf"] {
-		e.Groups[i] = string(group)
-	}
-}
-
-func (e *UserCacheHolderEntry) GetUID() string {
-	return fmt.Sprintf("u%x", md5.Sum([]byte(e.Attributes["distinguishedName"])))
-}
-
-type SynchronizedUserCacheHolder struct {
-	users map[string]*UserCacheHolderEntry
-	mux   sync.RWMutex
-}
-
-func (h *SynchronizedUserCacheHolder) Init() {
-	h.users = make(map[string]*UserCacheHolderEntry)
-}
-
-func (h *SynchronizedUserCacheHolder) Clear() {
-	h.mux.Lock()
-	defer h.mux.Unlock()
-
-	h.users = make(map[string]*UserCacheHolderEntry)
-}
-
-func (h *SynchronizedUserCacheHolder) SetAllUsers(users []RawLdapData) {
-	h.mux.Lock()
-	defer h.mux.Unlock()
-
-	h.users = make(map[string]*UserCacheHolderEntry)
-
-	for i := range users {
-		h.users[users[i].DN] = &UserCacheHolderEntry{RawLdapData: users[i]}
-		h.users[users[i].DN].CalcFieldsFromAttributes()
-	}
-}
-
-func (h *SynchronizedUserCacheHolder) GetUser(dn string) *RawLdapData {
-	h.mux.RLock()
-	defer h.mux.RUnlock()
-
-	return &h.users[dn].RawLdapData
-}
-
-func (h *SynchronizedUserCacheHolder) GetUserData(dn string) *UserCacheHolderEntry {
-	h.mux.RLock()
-	defer h.mux.RUnlock()
-
-	return h.users[dn]
-}
-
-func (h *SynchronizedUserCacheHolder) GetUsers() []*RawLdapData {
-	h.mux.RLock()
-	defer h.mux.RUnlock()
-
-	users := make([]*RawLdapData, 0, len(h.users))
-	for _, user := range h.users {
-		users = append(users, &user.RawLdapData)
-	}
-
-	return users
-}
-
-func (h *SynchronizedUserCacheHolder) GetSortedUsers(sortKey string, sortDirection string) []*UserCacheHolderEntry {
-	h.mux.RLock()
-	defer h.mux.RUnlock()
-
-	sortedUsers := make([]*UserCacheHolderEntry, 0, len(h.users))
-
-	for _, user := range h.users {
-		sortedUsers = append(sortedUsers, user)
-	}
-
-	sort.Slice(sortedUsers, func(i, j int) bool {
-		if sortDirection == "asc" {
-			return sortedUsers[i].Attributes[sortKey] < sortedUsers[j].Attributes[sortKey]
-		} else {
-			return sortedUsers[i].Attributes[sortKey] > sortedUsers[j].Attributes[sortKey]
-		}
-
-	})
-
-	return sortedUsers
-
-}
-
-func (h *SynchronizedUserCacheHolder) IsInGroup(username, gid string) bool {
-	userDN := h.GetUserDN(username)
-	if userDN == "" {
-		return false // user not found -> not in group
-	}
-
-	user := h.GetUserData(userDN)
-	if user == nil {
-		return false
-	}
-
-	for _, group := range user.Groups {
-		if group == gid {
-			return true
-		}
-	}
-
-	return false
-}
-
-func (h *SynchronizedUserCacheHolder) UserExists(username string) bool {
-	userDN := h.GetUserDN(username)
-	if userDN == "" {
-		return false // user not found
-	}
-
-	return true
-}
-
-func (h *SynchronizedUserCacheHolder) GetUserDN(username string) string {
-	userDN := ""
-	for dn, user := range h.users {
-		accName := strings.ToLower(user.Attributes["sAMAccountName"])
-		if accName == username {
-			userDN = dn
-			break
-		}
-	}
-
-	return userDN
-}
-
-func (h *SynchronizedUserCacheHolder) GetUserDNByMail(mail string) string {
-	userDN := ""
-	for dn, user := range h.users {
-		accMail := strings.ToLower(user.Attributes["mail"])
-		if accMail == mail {
-			userDN = dn
-			break
-		}
-	}
-
-	return userDN
-}
-
-// --------------------------------------------------------------------------------------------------------------------
-// Cache Handler, LDAP interaction
-// --------------------------------------------------------------------------------------------------------------------
-
-type UserCache struct {
-	Cfg       *Config
-	LastError error
-	UpdatedAt time.Time
-	userData  UserCacheHolder
-}
-
-func NewUserCache(config Config, store UserCacheHolder) *UserCache {
-	uc := &UserCache{
-		Cfg:       &config,
-		UpdatedAt: time.Now(),
-		userData:  store,
-	}
-
-	log.Infof("Filling user cache...")
-	err := uc.Update(true, true)
-	log.Infof("User cache filled!")
-	uc.LastError = err
-
-	return uc
-}
-
-func (u UserCache) open() (*ldap.Conn, error) {
-	conn, err := ldap.DialURL(u.Cfg.URL)
-	if err != nil {
-		return nil, err
-	}
-
-	if u.Cfg.StartTLS {
-		// Reconnect with TLS
-		err = conn.StartTLS(&tls.Config{InsecureSkipVerify: true})
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	err = conn.Bind(u.Cfg.BindUser, u.Cfg.BindPass)
-	if err != nil {
-		return nil, err
-	}
-
-	return conn, nil
-}
-
-func (u UserCache) close(conn *ldap.Conn) {
-	if conn != nil {
-		conn.Close()
-	}
-}
-
-// Update updates the user cache in background, minimal locking will happen
-func (u *UserCache) Update(filter, withDisabledUsers bool) error {
-	log.Debugf("Updating ldap cache...")
-	client, err := u.open()
-	if err != nil {
-		u.LastError = err
-		return err
-	}
-	defer u.close(client)
-
-	// Search for the given username
-	searchRequest := ldap.NewSearchRequest(
-		u.Cfg.BaseDN,
-		ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
-		"(objectClass=organizationalPerson)",
-		Fields,
-		nil,
-	)
-
-	sr, err := client.Search(searchRequest)
-	if err != nil {
-		u.LastError = err
-		return err
-	}
-
-	tmpData := make([]RawLdapData, 0, len(sr.Entries))
-
-	for _, entry := range sr.Entries {
-		if filter {
-			usernameAttr := strings.ToLower(entry.GetAttributeValue("sAMAccountName"))
-			firstNameAttr := entry.GetAttributeValue("givenName")
-			lastNameAttr := entry.GetAttributeValue("sn")
-			mailAttr := entry.GetAttributeValue("mail")
-			userAccountControl := entry.GetAttributeValue("userAccountControl")
-			employeeID := entry.GetAttributeValue("employeeID")
-			dn := entry.GetAttributeValue("distinguishedName")
-
-			if usernameAttr == "" || firstNameAttr == "" || lastNameAttr == "" || mailAttr == "" || employeeID == "" {
-				continue // prefilter...
-			}
-
-			if !withDisabledUsers && userAccountControl != "" && IsLdapUserDisabled(userAccountControl) {
-				continue
-			}
-
-			if entry.DN != dn {
-				log.Errorf("LDAP inconsistent: '%s' != '%s'", entry.DN, dn)
-				continue
-			}
-		}
-
-		tmp := RawLdapData{
-			DN:            entry.DN,
-			Attributes:    make(map[string]string, len(Fields)),
-			RawAttributes: make(map[string][][]byte, len(Fields)),
-		}
-
-		for _, field := range Fields {
-			tmp.Attributes[field] = entry.GetAttributeValue(field)
-			tmp.RawAttributes[field] = entry.GetRawAttributeValues(field)
-		}
-
-		tmpData = append(tmpData, tmp)
-	}
-
-	// Copy to userdata
-	u.userData.SetAllUsers(tmpData)
-	u.UpdatedAt = time.Now()
-	u.LastError = nil
-
-	log.Debug("Ldap cache updated...")
-
-	return nil
-}
-
-func IsLdapUserDisabled(userAccountControl string) bool {
-	uacInt, err := strconv.Atoi(userAccountControl)
-	if err != nil {
-		return true
-	}
-	if int32(uacInt)&0x2 != 0 {
-		return true // bit 2 set means account is disabled
-	}
-
-	return false
-}

internal/server/api.go

@@ -0,0 +1,926 @@
+package server
+
+// go get -u github.com/swaggo/swag/cmd/swag
+// run: swag init --parseDependency --parseInternal --generalInfo api.go
+// in the internal/server folder
+import (
+	"encoding/json"
+	"net/http"
+	"strings"
+	"time"
+
+	jsonpatch "github.com/evanphx/json-patch"
+	"github.com/gin-gonic/gin"
+	"github.com/h44z/wg-portal/internal/common"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/h44z/wg-portal/internal/wireguard"
+)
+
+// @title WireGuard Portal API
+// @version 1.0
+// @description WireGuard Portal API for managing users and peers.
+
+// @license.name MIT
+// @license.url https://github.com/h44z/wg-portal/blob/master/LICENSE.txt
+
+// @contact.name WireGuard Portal Project
+// @contact.url https://github.com/h44z/wg-portal
+
+// @securityDefinitions.basic ApiBasicAuth
+// @in header
+// @name Authorization
+// @scope.admin Admin access required
+
+// @securityDefinitions.basic GeneralBasicAuth
+// @in header
+// @name Authorization
+// @scope.user User access required
+
+// @BasePath /api/v1
+
+// ApiServer is a simple wrapper struct so that we can have fresh member function names.
+type ApiServer struct {
+	s *Server
+}
+
+type ApiError struct {
+	Message string
+}
+
+// GetUsers godoc
+// @Tags Users
+// @Summary Retrieves all users
+// @Produce json
+// @Success 200 {object} []users.User
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Router /backend/users [get]
+// @Security ApiBasicAuth
+func (s *ApiServer) GetUsers(c *gin.Context) {
+	allUsers := s.s.users.GetUsersUnscoped()
+
+	c.JSON(http.StatusOK, allUsers)
+}
+
+// GetUser godoc
+// @Tags Users
+// @Summary Retrieves user based on given Email
+// @Produce json
+// @Param email query string true "User Email"
+// @Success 200 {object} users.User
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Router /backend/user [get]
+// @Security ApiBasicAuth
+func (s *ApiServer) GetUser(c *gin.Context) {
+	email := strings.ToLower(strings.TrimSpace(c.Query("email")))
+	if email == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "email parameter must be specified"})
+		return
+	}
+
+	user := s.s.users.GetUserUnscoped(email)
+	if user == nil {
+		c.JSON(http.StatusNotFound, ApiError{Message: "user not found"})
+		return
+	}
+	c.JSON(http.StatusOK, user)
+}
+
+// PostUser godoc
+// @Tags Users
+// @Summary Creates a new user based on the given user model
+// @Accept  json
+// @Produce json
+// @Param user body users.User true "User Model"
+// @Success 200 {object} users.User
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Failure 500 {object} ApiError
+// @Router /backend/users [post]
+// @Security ApiBasicAuth
+func (s *ApiServer) PostUser(c *gin.Context) {
+	newUser := users.User{}
+	if err := c.BindJSON(&newUser); err != nil {
+		c.JSON(http.StatusBadRequest, ApiError{Message: err.Error()})
+		return
+	}
+
+	if user := s.s.users.GetUserUnscoped(newUser.Email); user != nil {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "user already exists"})
+		return
+	}
+
+	if err := s.s.CreateUser(newUser, s.s.wg.Cfg.GetDefaultDeviceName()); err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	user := s.s.users.GetUserUnscoped(newUser.Email)
+	if user == nil {
+		c.JSON(http.StatusNotFound, ApiError{Message: "user not found"})
+		return
+	}
+	c.JSON(http.StatusOK, user)
+}
+
+// PutUser godoc
+// @Tags Users
+// @Summary Updates a user based on the given user model
+// @Accept  json
+// @Produce json
+// @Param email query string true "User Email"
+// @Param user body users.User true "User Model"
+// @Success 200 {object} users.User
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Failure 500 {object} ApiError
+// @Router /backend/user [put]
+// @Security ApiBasicAuth
+func (s *ApiServer) PutUser(c *gin.Context) {
+	email := strings.ToLower(strings.TrimSpace(c.Query("email")))
+	if email == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "email parameter must be specified"})
+		return
+	}
+
+	updateUser := users.User{}
+	if err := c.BindJSON(&updateUser); err != nil {
+		c.JSON(http.StatusBadRequest, ApiError{Message: err.Error()})
+		return
+	}
+
+	// Changing email address is not allowed
+	if email != updateUser.Email {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "email parameter must match the model email address"})
+		return
+	}
+
+	if user := s.s.users.GetUserUnscoped(email); user == nil {
+		c.JSON(http.StatusNotFound, ApiError{Message: "user does not exist"})
+		return
+	}
+
+	if err := s.s.UpdateUser(updateUser); err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	user := s.s.users.GetUserUnscoped(email)
+	if user == nil {
+		c.JSON(http.StatusNotFound, ApiError{Message: "user not found"})
+		return
+	}
+	c.JSON(http.StatusOK, user)
+}
+
+// PatchUser godoc
+// @Tags Users
+// @Summary Updates a user based on the given partial user model
+// @Accept  json
+// @Produce json
+// @Param email query string true "User Email"
+// @Param user body users.User true "User Model"
+// @Success 200 {object} users.User
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Failure 500 {object} ApiError
+// @Router /backend/user [patch]
+// @Security ApiBasicAuth
+func (s *ApiServer) PatchUser(c *gin.Context) {
+	email := strings.ToLower(strings.TrimSpace(c.Query("email")))
+	if email == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "email parameter must be specified"})
+		return
+	}
+
+	patch, err := c.GetRawData()
+	if err != nil {
+		c.JSON(http.StatusBadRequest, ApiError{Message: err.Error()})
+		return
+	}
+
+	user := s.s.users.GetUserUnscoped(email)
+	if user == nil {
+		c.JSON(http.StatusNotFound, ApiError{Message: "user does not exist"})
+		return
+	}
+	userData, err := json.Marshal(user)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	mergedUserData, err := jsonpatch.MergePatch(userData, patch)
+	var mergedUser users.User
+	err = json.Unmarshal(mergedUserData, &mergedUser)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	// CHanging email address is not allowed
+	if email != mergedUser.Email {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "email parameter must match the model email address"})
+		return
+	}
+
+	if err := s.s.UpdateUser(mergedUser); err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	user = s.s.users.GetUserUnscoped(email)
+	if user == nil {
+		c.JSON(http.StatusNotFound, ApiError{Message: "user not found"})
+		return
+	}
+	c.JSON(http.StatusOK, user)
+}
+
+// DeleteUser godoc
+// @Tags Users
+// @Summary Deletes the specified user
+// @Produce json
+// @Param email query string true "User Email"
+// @Success 204 "No content"
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Failure 500 {object} ApiError
+// @Router /backend/user [delete]
+// @Security ApiBasicAuth
+func (s *ApiServer) DeleteUser(c *gin.Context) {
+	email := strings.ToLower(strings.TrimSpace(c.Query("email")))
+	if email == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "email parameter must be specified"})
+		return
+	}
+
+	var user *users.User
+	if user = s.s.users.GetUserUnscoped(email); user == nil {
+		c.JSON(http.StatusNotFound, ApiError{Message: "user does not exist"})
+		return
+	}
+
+	if err := s.s.DeleteUser(*user); err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	c.Status(http.StatusNoContent)
+}
+
+// GetPeers godoc
+// @Tags Peers
+// @Summary Retrieves all peers for the given interface
+// @Produce json
+// @Param device query string true "Device Name"
+// @Success 200 {object} []wireguard.Peer
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Router /backend/peers [get]
+// @Security ApiBasicAuth
+func (s *ApiServer) GetPeers(c *gin.Context) {
+	deviceName := strings.ToLower(strings.TrimSpace(c.Query("device")))
+	if deviceName == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "device parameter must be specified"})
+		return
+	}
+
+	// validate device name
+	if !common.ListContains(s.s.config.WG.DeviceNames, deviceName) {
+		c.JSON(http.StatusNotFound, ApiError{Message: "unknown device"})
+		return
+	}
+
+	peers := s.s.peers.GetAllPeers(deviceName)
+	c.JSON(http.StatusOK, peers)
+}
+
+// GetPeer godoc
+// @Tags Peers
+// @Summary Retrieves the peer for the given public key
+// @Produce json
+// @Param pkey query string true "Public Key (Base 64)"
+// @Success 200 {object} wireguard.Peer
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Router /backend/peer [get]
+// @Security ApiBasicAuth
+func (s *ApiServer) GetPeer(c *gin.Context) {
+	pkey := c.Query("pkey")
+	if pkey == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "pkey parameter must be specified"})
+		return
+	}
+
+	peer := s.s.peers.GetPeerByKey(pkey)
+	if !peer.IsValid() {
+		c.JSON(http.StatusNotFound, ApiError{Message: "peer does not exist"})
+		return
+	}
+	c.JSON(http.StatusOK, peer)
+}
+
+// PostPeer godoc
+// @Tags Peers
+// @Summary Creates a new peer based on the given peer model
+// @Accept  json
+// @Produce json
+// @Param device query string true "Device Name"
+// @Param peer body wireguard.Peer true "Peer Model"
+// @Success 200 {object} wireguard.Peer
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Failure 500 {object} ApiError
+// @Router /backend/peers [post]
+// @Security ApiBasicAuth
+func (s *ApiServer) PostPeer(c *gin.Context) {
+	deviceName := strings.ToLower(strings.TrimSpace(c.Query("device")))
+	if deviceName == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "device parameter must be specified"})
+		return
+	}
+
+	// validate device name
+	if !common.ListContains(s.s.config.WG.DeviceNames, deviceName) {
+		c.JSON(http.StatusNotFound, ApiError{Message: "unknown device"})
+		return
+	}
+
+	newPeer := wireguard.Peer{}
+	if err := c.BindJSON(&newPeer); err != nil {
+		c.JSON(http.StatusBadRequest, ApiError{Message: err.Error()})
+		return
+	}
+
+	if peer := s.s.peers.GetPeerByKey(newPeer.PublicKey); peer.IsValid() {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "peer already exists"})
+		return
+	}
+
+	if err := s.s.CreatePeer(deviceName, newPeer); err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	peer := s.s.peers.GetPeerByKey(newPeer.PublicKey)
+	if !peer.IsValid() {
+		c.JSON(http.StatusNotFound, ApiError{Message: "peer not found"})
+		return
+	}
+	c.JSON(http.StatusOK, peer)
+}
+
+// PutPeer godoc
+// @Tags Peers
+// @Summary Updates the given peer based on the given peer model
+// @Accept  json
+// @Produce json
+// @Param pkey query string true "Public Key"
+// @Param peer body wireguard.Peer true "Peer Model"
+// @Success 200 {object} wireguard.Peer
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Failure 500 {object} ApiError
+// @Router /backend/peer [put]
+// @Security ApiBasicAuth
+func (s *ApiServer) PutPeer(c *gin.Context) {
+	updatePeer := wireguard.Peer{}
+	if err := c.BindJSON(&updatePeer); err != nil {
+		c.JSON(http.StatusBadRequest, ApiError{Message: err.Error()})
+		return
+	}
+
+	pkey := c.Query("pkey")
+	if pkey == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "pkey parameter must be specified"})
+		return
+	}
+
+	if peer := s.s.peers.GetPeerByKey(pkey); !peer.IsValid() {
+		c.JSON(http.StatusNotFound, ApiError{Message: "peer does not exist"})
+		return
+	}
+
+	// Changing public key is not allowed
+	if pkey != updatePeer.PublicKey {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "pkey parameter must match the model public key"})
+		return
+	}
+
+	now := time.Now()
+	if updatePeer.DeactivatedAt != nil {
+		updatePeer.DeactivatedAt = &now
+	}
+	if err := s.s.UpdatePeer(updatePeer, now); err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	peer := s.s.peers.GetPeerByKey(updatePeer.PublicKey)
+	if !peer.IsValid() {
+		c.JSON(http.StatusNotFound, ApiError{Message: "peer not found"})
+		return
+	}
+	c.JSON(http.StatusOK, peer)
+}
+
+// PatchPeer godoc
+// @Tags Peers
+// @Summary Updates the given peer based on the given partial peer model
+// @Accept  json
+// @Produce json
+// @Param pkey query string true "Public Key"
+// @Param peer body wireguard.Peer true "Peer Model"
+// @Success 200 {object} wireguard.Peer
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Failure 500 {object} ApiError
+// @Router /backend/peer [patch]
+// @Security ApiBasicAuth
+func (s *ApiServer) PatchPeer(c *gin.Context) {
+	patch, err := c.GetRawData()
+	if err != nil {
+		c.JSON(http.StatusBadRequest, ApiError{Message: err.Error()})
+		return
+	}
+
+	pkey := c.Query("pkey")
+	if pkey == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "pkey parameter must be specified"})
+		return
+	}
+
+	peer := s.s.peers.GetPeerByKey(pkey)
+	if !peer.IsValid() {
+		c.JSON(http.StatusNotFound, ApiError{Message: "peer does not exist"})
+		return
+	}
+
+	peerData, err := json.Marshal(peer)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	mergedPeerData, err := jsonpatch.MergePatch(peerData, patch)
+	var mergedPeer wireguard.Peer
+	err = json.Unmarshal(mergedPeerData, &mergedPeer)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	if !mergedPeer.IsValid() {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "invalid peer model"})
+		return
+	}
+
+	// Changing public key is not allowed
+	if pkey != mergedPeer.PublicKey {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "pkey parameter must match the model public key"})
+		return
+	}
+
+	now := time.Now()
+	if mergedPeer.DeactivatedAt != nil {
+		mergedPeer.DeactivatedAt = &now
+	}
+	if err := s.s.UpdatePeer(mergedPeer, now); err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	peer = s.s.peers.GetPeerByKey(mergedPeer.PublicKey)
+	if !peer.IsValid() {
+		c.JSON(http.StatusNotFound, ApiError{Message: "peer not found"})
+		return
+	}
+	c.JSON(http.StatusOK, peer)
+}
+
+// DeletePeer godoc
+// @Tags Peers
+// @Summary Updates the given peer based on the given partial peer model
+// @Produce json
+// @Param pkey query string true "Public Key"
+// @Success 202 "No Content"
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Failure 500 {object} ApiError
+// @Router /backend/peer [delete]
+// @Security ApiBasicAuth
+func (s *ApiServer) DeletePeer(c *gin.Context) {
+	pkey := c.Query("pkey")
+	if pkey == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "pkey parameter must be specified"})
+		return
+	}
+
+	peer := s.s.peers.GetPeerByKey(pkey)
+	if peer.PublicKey == "" {
+		c.JSON(http.StatusNotFound, ApiError{Message: "peer does not exist"})
+		return
+	}
+
+	if err := s.s.DeletePeer(peer); err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	c.Status(http.StatusNoContent)
+}
+
+// GetDevices godoc
+// @Tags Interface
+// @Summary Get all devices
+// @Produce json
+// @Success 200 {object} []wireguard.Device
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Router /backend/devices [get]
+// @Security ApiBasicAuth
+func (s *ApiServer) GetDevices(c *gin.Context) {
+	var devices []wireguard.Device
+	for _, deviceName := range s.s.config.WG.DeviceNames {
+		device := s.s.peers.GetDevice(deviceName)
+		if !device.IsValid() {
+			continue
+		}
+		devices = append(devices, device)
+	}
+
+	c.JSON(http.StatusOK, devices)
+}
+
+// GetDevice godoc
+// @Tags Interface
+// @Summary Get the given device
+// @Produce json
+// @Param device query string true "Device Name"
+// @Success 200 {object} wireguard.Device
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Router /backend/device [get]
+// @Security ApiBasicAuth
+func (s *ApiServer) GetDevice(c *gin.Context) {
+	deviceName := strings.ToLower(strings.TrimSpace(c.Query("device")))
+	if deviceName == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "device parameter must be specified"})
+		return
+	}
+
+	// validate device name
+	if !common.ListContains(s.s.config.WG.DeviceNames, deviceName) {
+		c.JSON(http.StatusNotFound, ApiError{Message: "unknown device"})
+		return
+	}
+
+	device := s.s.peers.GetDevice(deviceName)
+	if !device.IsValid() {
+		c.JSON(http.StatusNotFound, ApiError{Message: "device not found"})
+		return
+	}
+
+	c.JSON(http.StatusOK, device)
+}
+
+// PutDevice godoc
+// @Tags Interface
+// @Summary Updates the given device based on the given device model (UNIMPLEMENTED)
+// @Accept  json
+// @Produce json
+// @Param device query string true "Device Name"
+// @Param body body wireguard.Device true "Device Model"
+// @Success 200 {object} wireguard.Device
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Failure 500 {object} ApiError
+// @Router /backend/device [put]
+// @Security ApiBasicAuth
+func (s *ApiServer) PutDevice(c *gin.Context) {
+	updateDevice := wireguard.Device{}
+	if err := c.BindJSON(&updateDevice); err != nil {
+		c.JSON(http.StatusBadRequest, ApiError{Message: err.Error()})
+		return
+	}
+
+	deviceName := strings.ToLower(strings.TrimSpace(c.Query("device")))
+	if deviceName == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "device parameter must be specified"})
+		return
+	}
+
+	// validate device name
+	if !common.ListContains(s.s.config.WG.DeviceNames, deviceName) {
+		c.JSON(http.StatusNotFound, ApiError{Message: "unknown device"})
+		return
+	}
+
+	device := s.s.peers.GetDevice(deviceName)
+	if !device.IsValid() {
+		c.JSON(http.StatusNotFound, ApiError{Message: "peer not found"})
+		return
+	}
+
+	// Changing device name is not allowed
+	if deviceName != updateDevice.DeviceName {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "device parameter must match the model device name"})
+		return
+	}
+
+	// TODO: implement
+
+	c.JSON(http.StatusNotImplemented, device)
+}
+
+// PatchDevice godoc
+// @Tags Interface
+// @Summary Updates the given device based on the given partial device model (UNIMPLEMENTED)
+// @Accept  json
+// @Produce json
+// @Param device query string true "Device Name"
+// @Param body body wireguard.Device true "Device Model"
+// @Success 200 {object} wireguard.Device
+// @Failure 400 {object} ApiError
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Failure 500 {object} ApiError
+// @Router /backend/device [patch]
+// @Security ApiBasicAuth
+func (s *ApiServer) PatchDevice(c *gin.Context) {
+	patch, err := c.GetRawData()
+	if err != nil {
+		c.JSON(http.StatusBadRequest, ApiError{Message: err.Error()})
+		return
+	}
+
+	deviceName := strings.ToLower(strings.TrimSpace(c.Query("device")))
+	if deviceName == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "device parameter must be specified"})
+		return
+	}
+
+	// validate device name
+	if !common.ListContains(s.s.config.WG.DeviceNames, deviceName) {
+		c.JSON(http.StatusNotFound, ApiError{Message: "unknown device"})
+		return
+	}
+
+	device := s.s.peers.GetDevice(deviceName)
+	if !device.IsValid() {
+		c.JSON(http.StatusNotFound, ApiError{Message: "peer not found"})
+		return
+	}
+
+	deviceData, err := json.Marshal(device)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	mergedDeviceData, err := jsonpatch.MergePatch(deviceData, patch)
+	var mergedDevice wireguard.Device
+	err = json.Unmarshal(mergedDeviceData, &mergedDevice)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	if !mergedDevice.IsValid() {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "invalid device model"})
+		return
+	}
+
+	// Changing device name is not allowed
+	if deviceName != mergedDevice.DeviceName {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "device parameter must match the model device name"})
+		return
+	}
+
+	// TODO: implement
+
+	c.JSON(http.StatusNotImplemented, device)
+}
+
+type PeerDeploymentInformation struct {
+	PublicKey        string
+	Identifier       string
+	Device           string
+	DeviceIdentifier string
+}
+
+// GetPeerDeploymentInformation godoc
+// @Tags Provisioning
+// @Summary Retrieves all active peers for the given email address
+// @Produce json
+// @Param email query string true "Email Address"
+// @Success 200 {object} []PeerDeploymentInformation "All active WireGuard peers"
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Router /provisioning/peers [get]
+// @Security GeneralBasicAuth
+func (s *ApiServer) GetPeerDeploymentInformation(c *gin.Context) {
+	email := c.Query("email")
+	if email == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "email parameter must be specified"})
+		return
+	}
+
+	// Get authenticated user to check permissions
+	username, _, _ := c.Request.BasicAuth()
+	user := s.s.users.GetUser(username)
+
+	if !user.IsAdmin && user.Email != email {
+		c.JSON(http.StatusForbidden, ApiError{Message: "not enough permissions to access this resource"})
+		return
+	}
+
+	peers := s.s.peers.GetPeersByMail(email)
+	result := make([]PeerDeploymentInformation, 0, len(peers))
+	for i := range peers {
+		if peers[i].DeactivatedAt != nil {
+			continue // skip deactivated peers
+		}
+
+		device := s.s.peers.GetDevice(peers[i].DeviceName)
+		if device.Type != wireguard.DeviceTypeServer {
+			continue // Skip peers on non-server devices
+		}
+
+		result = append(result, PeerDeploymentInformation{
+			PublicKey:        peers[i].PublicKey,
+			Identifier:       peers[i].Identifier,
+			Device:           device.DeviceName,
+			DeviceIdentifier: device.DisplayName,
+		})
+	}
+
+	c.JSON(http.StatusOK, result)
+}
+
+// GetPeerDeploymentConfig godoc
+// @Tags Provisioning
+// @Summary Retrieves the peer config for the given public key
+// @Produce plain
+// @Param pkey query string true "Public Key (Base 64)"
+// @Success 200 {object} string "The WireGuard configuration file"
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Router /provisioning/peer [get]
+// @Security GeneralBasicAuth
+func (s *ApiServer) GetPeerDeploymentConfig(c *gin.Context) {
+	pkey := c.Query("pkey")
+	if pkey == "" {
+		c.JSON(http.StatusBadRequest, ApiError{Message: "pkey parameter must be specified"})
+		return
+	}
+
+	peer := s.s.peers.GetPeerByKey(pkey)
+	if !peer.IsValid() {
+		c.JSON(http.StatusNotFound, ApiError{Message: "peer does not exist"})
+		return
+	}
+
+	// Get authenticated user to check permissions
+	username, _, _ := c.Request.BasicAuth()
+	user := s.s.users.GetUser(username)
+
+	if !user.IsAdmin && user.Email != peer.Email {
+		c.JSON(http.StatusForbidden, ApiError{Message: "not enough permissions to access this resource"})
+		return
+	}
+
+	device := s.s.peers.GetDevice(peer.DeviceName)
+	config, err := peer.GetConfigFile(device)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	c.Data(http.StatusOK, "text/plain", config)
+}
+
+type ProvisioningRequest struct {
+	// DeviceName is optional, if not specified, the configured default device will be used.
+	DeviceName string `json:",omitempty"`
+	Identifier string `binding:"required"`
+	Email      string `binding:"required"`
+
+	// Client specific and optional settings
+
+	AllowedIPsStr       string `binding:"cidrlist" json:",omitempty"`
+	PersistentKeepalive int    `binding:"gte=0" json:",omitempty"`
+	DNSStr              string `binding:"iplist" json:",omitempty"`
+	Mtu                 int    `binding:"gte=0,lte=1500" json:",omitempty"`
+}
+
+// PostPeerDeploymentConfig godoc
+// @Tags Provisioning
+// @Summary Creates the requested peer config and returns the config file
+// @Accept  json
+// @Produce plain
+// @Param body body ProvisioningRequest true "Provisioning Request Model"
+// @Success 200 {object} string "The WireGuard configuration file"
+// @Failure 401 {object} ApiError
+// @Failure 403 {object} ApiError
+// @Failure 404 {object} ApiError
+// @Router /provisioning/peers [post]
+// @Security GeneralBasicAuth
+func (s *ApiServer) PostPeerDeploymentConfig(c *gin.Context) {
+	req := ProvisioningRequest{}
+	if err := c.BindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, ApiError{Message: err.Error()})
+		return
+	}
+
+	// Get authenticated user to check permissions
+	username, _, _ := c.Request.BasicAuth()
+	user := s.s.users.GetUser(username)
+
+	if !user.IsAdmin && !s.s.config.Core.SelfProvisioningAllowed {
+		c.JSON(http.StatusForbidden, ApiError{Message: "peer provisioning service disabled"})
+		return
+	}
+
+	if !user.IsAdmin && user.Email != req.Email {
+		c.JSON(http.StatusForbidden, ApiError{Message: "not enough permissions to access this resource"})
+		return
+	}
+
+	deviceName := req.DeviceName
+	if deviceName == "" || !common.ListContains(s.s.config.WG.DeviceNames, deviceName) {
+		deviceName = s.s.config.WG.GetDefaultDeviceName()
+	}
+	device := s.s.peers.GetDevice(deviceName)
+	if device.Type != wireguard.DeviceTypeServer {
+		c.JSON(http.StatusForbidden, ApiError{Message: "invalid device, provisioning disabled"})
+		return
+	}
+
+	// check if private/public keys are set, if so check database for existing entries
+	peer, err := s.s.PrepareNewPeer(deviceName)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+	peer.Email = req.Email
+	peer.Identifier = req.Identifier
+
+	if req.AllowedIPsStr != "" {
+		peer.AllowedIPsStr = req.AllowedIPsStr
+	}
+	if req.PersistentKeepalive != 0 {
+		peer.PersistentKeepalive = req.PersistentKeepalive
+	}
+	if req.DNSStr != "" {
+		peer.DNSStr = req.DNSStr
+	}
+	if req.Mtu != 0 {
+		peer.Mtu = req.Mtu
+	}
+
+	if err := s.s.CreatePeer(deviceName, peer); err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	config, err := peer.GetConfigFile(device)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, ApiError{Message: err.Error()})
+		return
+	}
+
+	c.Data(http.StatusOK, "text/plain", config)
+}

internal/server/auth.go

@@ -0,0 +1,90 @@
+package server
+
+import (
+	"sort"
+
+	"github.com/gin-gonic/gin"
+	"github.com/h44z/wg-portal/internal/authentication"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/sirupsen/logrus"
+)
+
+// AuthManager keeps track of available authentication providers.
+type AuthManager struct {
+	Server      *Server
+	Group       *gin.RouterGroup // basic group for all providers (/auth)
+	providers   []authentication.AuthProvider
+	UserManager *users.Manager
+}
+
+// RegisterProvider register auth provider
+func (auth *AuthManager) RegisterProvider(provider authentication.AuthProvider) {
+	name := provider.GetName()
+	if auth.GetProvider(name) != nil {
+		logrus.Warnf("auth provider %v already registered", name)
+	}
+
+	provider.SetupRoutes(auth.Group)
+	auth.providers = append(auth.providers, provider)
+}
+
+// RegisterProviderWithoutError register auth provider if err is nil
+func (auth *AuthManager) RegisterProviderWithoutError(provider authentication.AuthProvider, err error) {
+	if err != nil {
+		logrus.Errorf("skipping provider registration: %v", err)
+		return
+	}
+	auth.RegisterProvider(provider)
+}
+
+// GetProvider get provider by name
+func (auth *AuthManager) GetProvider(name string) authentication.AuthProvider {
+	for _, provider := range auth.providers {
+		if provider.GetName() == name {
+			return provider
+		}
+	}
+	return nil
+}
+
+// GetProviders return registered providers.
+// Returned providers are ordered by provider priority.
+func (auth *AuthManager) GetProviders() (providers []authentication.AuthProvider) {
+	for _, provider := range auth.providers {
+		providers = append(providers, provider)
+	}
+
+	// order by priority
+	sort.SliceStable(providers, func(i, j int) bool {
+		return providers[i].GetPriority() < providers[j].GetPriority()
+	})
+
+	return
+}
+
+// GetProvidersForType return registered providers for the given type.
+// Returned providers are ordered by provider priority.
+func (auth *AuthManager) GetProvidersForType(typ authentication.AuthProviderType) (providers []authentication.AuthProvider) {
+	for _, provider := range auth.providers {
+		if provider.GetType() == typ {
+			providers = append(providers, provider)
+		}
+	}
+
+	// order by priority
+	sort.SliceStable(providers, func(i, j int) bool {
+		return providers[i].GetPriority() < providers[j].GetPriority()
+	})
+
+	return
+}
+
+func NewAuthManager(server *Server) *AuthManager {
+	m := &AuthManager{
+		Server: server,
+	}
+
+	m.Group = m.Server.server.Group("/auth")
+
+	return m
+}

internal/server/configuration.go

@@ -0,0 +1,138 @@
+package server
+
+import (
+	"os"
+	"reflect"
+	"runtime"
+
+	"github.com/h44z/wg-portal/internal/common"
+	"github.com/h44z/wg-portal/internal/ldap"
+	"github.com/h44z/wg-portal/internal/wireguard"
+	"github.com/kelseyhightower/envconfig"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"gopkg.in/yaml.v3"
+)
+
+var ErrInvalidSpecification = errors.New("specification must be a struct pointer")
+
+// loadConfigFile parses yaml files. It uses yaml annotation to store the data in a struct.
+func loadConfigFile(cfg interface{}, filename string) error {
+	s := reflect.ValueOf(cfg)
+
+	if s.Kind() != reflect.Ptr {
+		return ErrInvalidSpecification
+	}
+	s = s.Elem()
+	if s.Kind() != reflect.Struct {
+		return ErrInvalidSpecification
+	}
+
+	f, err := os.Open(filename)
+	if err != nil {
+		return errors.Wrapf(err, "failed to open config file %s", filename)
+	}
+	defer f.Close()
+
+	decoder := yaml.NewDecoder(f)
+	err = decoder.Decode(cfg)
+	if err != nil {
+		return errors.Wrapf(err, "failed to decode config file %s", filename)
+	}
+
+	return nil
+}
+
+// loadConfigEnv processes envconfig annotations and loads environment variables to the given configuration struct.
+func loadConfigEnv(cfg interface{}) error {
+	err := envconfig.Process("", cfg)
+	if err != nil {
+		return errors.Wrap(err, "failed to process environment config")
+	}
+
+	return nil
+}
+
+type Config struct {
+	Core struct {
+		ListeningAddress        string `yaml:"listeningAddress" envconfig:"LISTENING_ADDRESS"`
+		ExternalUrl             string `yaml:"externalUrl" envconfig:"EXTERNAL_URL"`
+		Title                   string `yaml:"title" envconfig:"WEBSITE_TITLE"`
+		CompanyName             string `yaml:"company" envconfig:"COMPANY_NAME"`
+		MailFrom                string `yaml:"mailFrom" envconfig:"MAIL_FROM"`
+		AdminUser               string `yaml:"adminUser" envconfig:"ADMIN_USER"` // must be an email address
+		AdminPassword           string `yaml:"adminPass" envconfig:"ADMIN_PASS"`
+		EditableKeys            bool   `yaml:"editableKeys" envconfig:"EDITABLE_KEYS"`
+		CreateDefaultPeer       bool   `yaml:"createDefaultPeer" envconfig:"CREATE_DEFAULT_PEER"`
+		SelfProvisioningAllowed bool   `yaml:"selfProvisioning" envconfig:"SELF_PROVISIONING"`
+		LdapEnabled             bool   `yaml:"ldapEnabled" envconfig:"LDAP_ENABLED"`
+		SessionSecret           string `yaml:"sessionSecret" envconfig:"SESSION_SECRET"`
+	} `yaml:"core"`
+	Database common.DatabaseConfig `yaml:"database"`
+	Email    common.MailConfig     `yaml:"email"`
+	LDAP     ldap.Config           `yaml:"ldap"`
+	WG       wireguard.Config      `yaml:"wg"`
+}
+
+func NewConfig() *Config {
+	cfg := &Config{}
+
+	// Default config
+	cfg.Core.ListeningAddress = ":8123"
+	cfg.Core.Title = "WireGuard VPN"
+	cfg.Core.CompanyName = "WireGuard Portal"
+	cfg.Core.ExternalUrl = "http://localhost:8123"
+	cfg.Core.MailFrom = "WireGuard VPN <noreply@company.com>"
+	cfg.Core.AdminUser = "admin@wgportal.local"
+	cfg.Core.AdminPassword = "wgportal"
+	cfg.Core.LdapEnabled = false
+	cfg.Core.EditableKeys = true
+	cfg.Core.SessionSecret = "secret"
+
+	cfg.Database.Typ = "sqlite"
+	cfg.Database.Database = "data/wg_portal.db"
+
+	cfg.LDAP.URL = "ldap://srv-ad01.company.local:389"
+	cfg.LDAP.BaseDN = "DC=COMPANY,DC=LOCAL"
+	cfg.LDAP.StartTLS = true
+	cfg.LDAP.BindUser = "company\\\\ldap_wireguard"
+	cfg.LDAP.BindPass = "SuperSecret"
+	cfg.LDAP.EmailAttribute = "mail"
+	cfg.LDAP.FirstNameAttribute = "givenName"
+	cfg.LDAP.LastNameAttribute = "sn"
+	cfg.LDAP.PhoneAttribute = "telephoneNumber"
+	cfg.LDAP.GroupMemberAttribute = "memberOf"
+	cfg.LDAP.AdminLdapGroup = "CN=WireGuardAdmins,OU=_O_IT,DC=COMPANY,DC=LOCAL"
+	cfg.LDAP.LoginFilter = "(&(objectClass=organizationalPerson)(mail={{login_identifier}})(!userAccountControl:1.2.840.113556.1.4.803:=2))"
+	cfg.LDAP.SyncFilter = "(&(objectClass=organizationalPerson)(!userAccountControl:1.2.840.113556.1.4.803:=2)(mail=*))"
+
+	cfg.WG.DeviceNames = []string{"wg0"}
+	cfg.WG.DefaultDeviceName = "wg0"
+	cfg.WG.ConfigDirectoryPath = "/etc/wireguard"
+	cfg.WG.ManageIPAddresses = true
+	cfg.Email.Host = "127.0.0.1"
+	cfg.Email.Port = 25
+	cfg.Email.Encryption = common.MailEncryptionNone
+	cfg.Email.AuthType = common.MailAuthPlain
+
+	// Load config from file and environment
+	cfgFile, ok := os.LookupEnv("CONFIG_FILE")
+	if !ok {
+		cfgFile = "config.yml" // Default config file
+	}
+	err := loadConfigFile(cfg, cfgFile)
+	if err != nil {
+		logrus.Warnf("unable to load config.yml file: %v, using default configuration...", err)
+	}
+	err = loadConfigEnv(cfg)
+	if err != nil {
+		logrus.Warnf("unable to load environment config: %v", err)
+	}
+
+	if cfg.WG.ManageIPAddresses && runtime.GOOS != "linux" {
+		logrus.Warnf("managing IP addresses only works on linux, feature disabled...")
+		cfg.WG.ManageIPAddresses = false
+	}
+
+	return cfg
+}

internal/server/core.go

@@ -1,291 +0,0 @@
-package server
-
-import (
-	"encoding/gob"
-	"errors"
-	"html/template"
-	"math/rand"
-	"net/url"
-	"os"
-	"path/filepath"
-	"time"
-
-	"github.com/h44z/wg-portal/internal/wireguard"
-
-	"github.com/h44z/wg-portal/internal/common"
-
-	"github.com/h44z/wg-portal/internal/ldap"
-	log "github.com/sirupsen/logrus"
-
-	"github.com/gin-contrib/sessions"
-	"github.com/gin-contrib/sessions/memstore"
-	"github.com/gin-gonic/gin"
-)
-
-const SessionIdentifier = "wgPortalSession"
-const CacheRefreshDuration = 5 * time.Minute
-
-func init() {
-	gob.Register(SessionData{})
-	gob.Register(FlashData{})
-	gob.Register(User{})
-	gob.Register(Device{})
-	gob.Register(LdapCreateForm{})
-}
-
-type SessionData struct {
-	LoggedIn      bool
-	IsAdmin       bool
-	UID           string
-	UserName      string
-	Firstname     string
-	Lastname      string
-	Email         string
-	SortedBy      string
-	SortDirection string
-	Search        string
-	AlertData     string
-	AlertType     string
-	FormData      interface{}
-}
-
-type FlashData struct {
-	HasAlert bool
-	Message  string
-	Type     string
-}
-
-type StaticData struct {
-	WebsiteTitle string
-	WebsiteLogo  string
-	CompanyName  string
-	Year         int
-	LdapDisabled bool
-}
-
-type Server struct {
-	// Core components
-	config  *common.Config
-	server  *gin.Engine
-	users   *UserManager
-	mailTpl *template.Template
-
-	// WireGuard stuff
-	wg *wireguard.Manager
-
-	// LDAP stuff
-	ldapDisabled     bool
-	ldapAuth         ldap.Authentication
-	ldapUsers        *ldap.SynchronizedUserCacheHolder
-	ldapCacheUpdater *ldap.UserCache
-}
-
-func (s *Server) Setup() error {
-	dir := s.getExecutableDirectory()
-	rDir, _ := filepath.Abs(filepath.Dir(os.Args[0]))
-	log.Infof("Real working directory: %s", rDir)
-	log.Infof("Current working directory: %s", dir)
-
-	// Init rand
-	rand.Seed(time.Now().UnixNano())
-
-	s.config = common.NewConfig()
-
-	// Setup LDAP stuff
-	s.ldapAuth = ldap.NewAuthentication(s.config.LDAP)
-	s.ldapUsers = &ldap.SynchronizedUserCacheHolder{}
-	s.ldapUsers.Init()
-	s.ldapCacheUpdater = ldap.NewUserCache(s.config.LDAP, s.ldapUsers)
-	if s.ldapCacheUpdater.LastError != nil {
-		log.Warnf("LDAP error: %v", s.ldapCacheUpdater.LastError)
-		log.Warnf("LDAP features disabled!")
-		s.ldapDisabled = true
-	}
-
-	// Setup WireGuard stuff
-	s.wg = &wireguard.Manager{Cfg: &s.config.WG}
-	if err := s.wg.Init(); err != nil {
-		return err
-	}
-
-	// Setup user manager
-	if s.users = NewUserManager(filepath.Join(dir, s.config.Core.DatabasePath), s.wg, s.ldapUsers); s.users == nil {
-		return errors.New("unable to setup user manager")
-	}
-	if err := s.users.InitFromCurrentInterface(); err != nil {
-		return errors.New("unable to initialize user manager")
-	}
-	if err := s.RestoreWireGuardInterface(); err != nil {
-		return errors.New("unable to restore wirguard state")
-	}
-
-	// Setup mail template
-	var err error
-	s.mailTpl, err = template.New("email.html").ParseFiles(filepath.Join(dir, "/assets/tpl/email.html"))
-	if err != nil {
-		return errors.New("unable to pare mail template")
-	}
-
-	// Setup http server
-	s.server = gin.Default()
-	s.server.SetFuncMap(template.FuncMap{
-		"formatBytes": common.ByteCountSI,
-		"urlEncode":   url.QueryEscape,
-	})
-
-	// Setup templates
-	log.Infof("Loading templates from: %s", filepath.Join(dir, "/assets/tpl/*.html"))
-	s.server.LoadHTMLGlob(filepath.Join(dir, "/assets/tpl/*.html"))
-	s.server.Use(sessions.Sessions("authsession", memstore.NewStore([]byte("secret")))) // TODO: change key?
-
-	// Serve static files
-	s.server.Static("/css", filepath.Join(dir, "/assets/css"))
-	s.server.Static("/js", filepath.Join(dir, "/assets/js"))
-	s.server.Static("/img", filepath.Join(dir, "/assets/img"))
-	s.server.Static("/fonts", filepath.Join(dir, "/assets/fonts"))
-
-	// Setup all routes
-	SetupRoutes(s)
-
-	log.Infof("Setup of service completed!")
-	return nil
-}
-
-func (s *Server) Run() {
-	// Start ldap group watcher
-	if !s.ldapDisabled {
-		go func(s *Server) {
-			for {
-				time.Sleep(CacheRefreshDuration)
-				if err := s.ldapCacheUpdater.Update(true, true); err != nil {
-					log.Warnf("Failed to update ldap group cache: %v", err)
-				}
-				log.Debugf("Refreshed LDAP permissions!")
-			}
-		}(s)
-	}
-
-	if !s.ldapDisabled && s.config.Core.SyncLdapStatus {
-		go func(s *Server) {
-			for {
-				time.Sleep(CacheRefreshDuration)
-				if err := s.SyncLdapAttributesWithWireGuard(); err != nil {
-					log.Warnf("Failed to synchronize ldap attributes: %v", err)
-				}
-				log.Debugf("Synced LDAP attributes!")
-			}
-		}(s)
-	}
-
-	// Run web service
-	err := s.server.Run(s.config.Core.ListeningAddress)
-	if err != nil {
-		log.Errorf("Failed to listen and serve on %s: %v", s.config.Core.ListeningAddress, err)
-	}
-}
-
-func (s *Server) getExecutableDirectory() string {
-	dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
-	if err != nil {
-		log.Errorf("Failed to get executable directory: %v", err)
-	}
-
-	if _, err := os.Stat(filepath.Join(dir, "assets")); os.IsNotExist(err) {
-		return "." // assets directory not found -> we are developing in goland =)
-	}
-
-	return dir
-}
-
-func (s *Server) getSessionData(c *gin.Context) SessionData {
-	session := sessions.Default(c)
-	rawSessionData := session.Get(SessionIdentifier)
-
-	var sessionData SessionData
-	if rawSessionData != nil {
-		sessionData = rawSessionData.(SessionData)
-	} else {
-		sessionData = SessionData{
-			SortedBy:      "mail",
-			SortDirection: "asc",
-			Email:         "",
-			Firstname:     "",
-			Lastname:      "",
-			IsAdmin:       false,
-			LoggedIn:      false,
-		}
-		session.Set(SessionIdentifier, sessionData)
-		if err := session.Save(); err != nil {
-			log.Errorf("Failed to store session: %v", err)
-		}
-	}
-
-	return sessionData
-}
-
-func (s *Server) getFlashes(c *gin.Context) []FlashData {
-	session := sessions.Default(c)
-	flashes := session.Flashes()
-	if err := session.Save(); err != nil {
-		log.Errorf("Failed to store session after setting flash: %v", err)
-	}
-
-	flashData := make([]FlashData, len(flashes))
-	for i := range flashes {
-		flashData[i] = flashes[i].(FlashData)
-	}
-
-	return flashData
-}
-
-func (s *Server) updateSessionData(c *gin.Context, data SessionData) error {
-	session := sessions.Default(c)
-	session.Set(SessionIdentifier, data)
-	if err := session.Save(); err != nil {
-		log.Errorf("Failed to store session: %v", err)
-		return err
-	}
-	return nil
-}
-
-func (s *Server) destroySessionData(c *gin.Context) error {
-	session := sessions.Default(c)
-	session.Delete(SessionIdentifier)
-	if err := session.Save(); err != nil {
-		log.Errorf("Failed to destroy session: %v", err)
-		return err
-	}
-	return nil
-}
-
-func (s *Server) getStaticData() StaticData {
-	return StaticData{
-		WebsiteTitle: s.config.Core.Title,
-		WebsiteLogo:  "/img/header-logo.png",
-		CompanyName:  s.config.Core.CompanyName,
-		LdapDisabled: s.ldapDisabled,
-		Year:         time.Now().Year(),
-	}
-}
-
-func (s *Server) setFlashMessage(c *gin.Context, message, typ string) {
-	session := sessions.Default(c)
-	session.AddFlash(FlashData{
-		Message: message,
-		Type:    typ,
-	})
-	if err := session.Save(); err != nil {
-		log.Errorf("Failed to store session after setting flash: %v", err)
-	}
-}
-
-func (s SessionData) GetSortIcon(field string) string {
-	if s.SortedBy != field {
-		return "fa-sort"
-	}
-	if s.SortDirection == "asc" {
-		return "fa-sort-alpha-down"
-	} else {
-		return "fa-sort-alpha-up"
-	}
-}

internal/server/handlers_auth.go

@@ -4,13 +4,17 @@ import (
 	"net/http"
 	"strings"
 
-	log "github.com/sirupsen/logrus"
+	"github.com/pkg/errors"
 
 	"github.com/gin-gonic/gin"
+	"github.com/h44z/wg-portal/internal/authentication"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/sirupsen/logrus"
+	csrf "github.com/utrack/gin-csrf"
 )
 
 func (s *Server) GetLogin(c *gin.Context) {
-	currentSession := s.getSessionData(c)
+	currentSession := GetSessionData(c)
 	if currentSession.LoggedIn {
 		c.Redirect(http.StatusSeeOther, "/") // already logged in
 	}
@@ -30,11 +34,12 @@ func (s *Server) GetLogin(c *gin.Context) {
 		"error":   authError != "",
 		"message": errMsg,
 		"static":  s.getStaticData(),
+		"Csrf":    csrf.GetToken(c),
 	})
 }
 
 func (s *Server) PostLogin(c *gin.Context) {
-	currentSession := s.getSessionData(c)
+	currentSession := GetSessionData(c)
 	if currentSession.LoggedIn {
 		// already logged in
 		c.Redirect(http.StatusSeeOther, "/")
@@ -50,69 +55,35 @@ func (s *Server) PostLogin(c *gin.Context) {
 		return
 	}
 
-	adminAuthenticated := false
-	if s.config.Core.AdminUser != "" && username == s.config.Core.AdminUser && password == s.config.Core.AdminPassword {
-		adminAuthenticated = true
+	// Check all available auth backends
+	user, err := s.checkAuthentication(username, password)
+	if err != nil {
+		s.GetHandleError(c, http.StatusInternalServerError, "login error", err.Error())
+		return
 	}
 
-	// Check if user is in cache, avoid unnecessary ldap requests
-	if !adminAuthenticated && !s.ldapUsers.UserExists(username) {
-		c.Redirect(http.StatusSeeOther, "/auth/login?err=authfail")
-	}
-
-	// Check if username and password match
-	if !adminAuthenticated && !s.ldapAuth.CheckLogin(username, password) {
+	// Check if user is authenticated
+	if user == nil {
 		c.Redirect(http.StatusSeeOther, "/auth/login?err=authfail")
 		return
 	}
 
-	var sessionData SessionData
-	if adminAuthenticated {
-		sessionData = SessionData{
-			LoggedIn:      true,
-			IsAdmin:       true,
-			Email:         "autodetected@example.com",
-			UID:           "adminuid",
-			UserName:      username,
-			Firstname:     "System",
-			Lastname:      "Administrator",
-			SortedBy:      "mail",
-			SortDirection: "asc",
-			Search:        "",
-		}
-	} else {
-		dn := s.ldapUsers.GetUserDN(username)
-		userData := s.ldapUsers.GetUserData(dn)
-		sessionData = SessionData{
-			LoggedIn:      true,
-			IsAdmin:       s.ldapUsers.IsInGroup(username, s.config.AdminLdapGroup),
-			UID:           userData.GetUID(),
-			UserName:      username,
-			Email:         userData.Mail,
-			Firstname:     userData.Firstname,
-			Lastname:      userData.Lastname,
-			SortedBy:      "mail",
-			SortDirection: "asc",
-			Search:        "",
-		}
-	}
+	// Set authenticated session
+	sessionData := GetSessionData(c)
+	sessionData.LoggedIn = true
+	sessionData.IsAdmin = user.IsAdmin
+	sessionData.Email = user.Email
+	sessionData.Firstname = user.Firstname
+	sessionData.Lastname = user.Lastname
+	sessionData.DeviceName = s.wg.Cfg.DeviceNames[0]
 
 	// Check if user already has a peer setup, if not create one
-	if s.config.Core.CreateInterfaceOnLogin && !adminAuthenticated {
-		users := s.users.GetUsersByMail(sessionData.Email)
-
-		if len(users) == 0 { // Create vpn peer
-			err := s.CreateUser(User{
-				Identifier: sessionData.Firstname + " " + sessionData.Lastname + " (Default)",
-				Email:      sessionData.Email,
-				CreatedBy:  sessionData.Email,
-				UpdatedBy:  sessionData.Email,
-			})
-			log.Errorf("Failed to automatically create vpn peer for %s: %v", sessionData.Email, err)
-		}
+	if err := s.CreateUserDefaultPeer(user.Email, s.wg.Cfg.GetDefaultDeviceName()); err != nil {
+		// Not a fatal error, just log it...
+		logrus.Errorf("failed to automatically create vpn peer for %s: %v", sessionData.Email, err)
 	}
 
-	if err := s.updateSessionData(c, sessionData); err != nil {
+	if err := UpdateSessionData(c, sessionData); err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "login error", "failed to save session")
 		return
 	}
@@ -120,16 +91,61 @@ func (s *Server) PostLogin(c *gin.Context) {
 }
 
 func (s *Server) GetLogout(c *gin.Context) {
-	currentSession := s.getSessionData(c)
+	currentSession := GetSessionData(c)
 
 	if !currentSession.LoggedIn { // Not logged in
 		c.Redirect(http.StatusSeeOther, "/")
 		return
 	}
 
-	if err := s.destroySessionData(c); err != nil {
+	if err := DestroySessionData(c); err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "logout error", "failed to destroy session")
 		return
 	}
 	c.Redirect(http.StatusSeeOther, "/")
 }
+
+func (s *Server) checkAuthentication(username, password string) (*users.User, error) {
+	var user *users.User
+
+	// Check all available auth backends
+	for _, provider := range s.auth.GetProvidersForType(authentication.AuthProviderTypePassword) {
+		// try to log in to the given provider
+		authEmail, err := provider.Login(&authentication.AuthContext{
+			Username: username,
+			Password: password,
+		})
+		if err != nil {
+			continue
+		}
+
+		// Login succeeded
+		user = s.users.GetUser(authEmail)
+		if user != nil {
+			break // user exists, nothing more to do...
+		}
+
+		// create new user in the database (or reactivate him)
+		userData, err := provider.GetUserModel(&authentication.AuthContext{
+			Username: username,
+		})
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to get user model")
+		}
+		if err := s.CreateUser(users.User{
+			Email:     userData.Email,
+			Source:    users.UserSource(provider.GetName()),
+			IsAdmin:   userData.IsAdmin,
+			Firstname: userData.Firstname,
+			Lastname:  userData.Lastname,
+			Phone:     userData.Phone,
+		}, s.wg.Cfg.GetDefaultDeviceName()); err != nil {
+			return nil, errors.Wrap(err, "failed to update user data")
+		}
+
+		user = s.users.GetUser(authEmail)
+		break
+	}
+
+	return user, nil
+}

internal/server/handlers_common.go

@@ -5,9 +5,14 @@ import (
 	"strconv"
 
 	"github.com/gin-gonic/gin"
+	"github.com/h44z/wg-portal/internal/common"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/pkg/errors"
 )
 
 func (s *Server) GetHandleError(c *gin.Context, code int, message, details string) {
+	currentSession := GetSessionData(c)
+
 	c.HTML(code, "error.html", gin.H{
 		"Data": gin.H{
 			"Code":    strconv.Itoa(code),
@@ -15,104 +20,111 @@ func (s *Server) GetHandleError(c *gin.Context, code int, message, details strin
 			"Details": details,
 		},
 		"Route":       c.Request.URL.Path,
-		"Session": s.getSessionData(c),
+		"Session":     GetSessionData(c),
 		"Static":      s.getStaticData(),
+		"Device":      s.peers.GetDevice(currentSession.DeviceName),
+		"DeviceNames": s.GetDeviceNames(),
 	})
 }
 
 func (s *Server) GetIndex(c *gin.Context) {
-	c.HTML(http.StatusOK, "index.html", struct {
-		Route   string
-		Alerts  []FlashData
-		Session SessionData
-		Static  StaticData
-		Device  Device
-	}{
-		Route:   c.Request.URL.Path,
-		Alerts:  s.getFlashes(c),
-		Session: s.getSessionData(c),
-		Static:  s.getStaticData(),
-		Device:  s.users.GetDevice(),
+	currentSession := GetSessionData(c)
+
+	c.HTML(http.StatusOK, "index.html", gin.H{
+		"Route":       c.Request.URL.Path,
+		"Alerts":      GetFlashes(c),
+		"Session":     currentSession,
+		"Static":      s.getStaticData(),
+		"Device":      s.peers.GetDevice(currentSession.DeviceName),
+		"DeviceNames": s.GetDeviceNames(),
 	})
 }
 
 func (s *Server) GetAdminIndex(c *gin.Context) {
-	currentSession := s.getSessionData(c)
+	currentSession := GetSessionData(c)
 
 	sort := c.Query("sort")
 	if sort != "" {
-		if currentSession.SortedBy != sort {
-			currentSession.SortedBy = sort
-			currentSession.SortDirection = "asc"
+		if currentSession.SortedBy["peers"] != sort {
+			currentSession.SortedBy["peers"] = sort
+			currentSession.SortDirection["peers"] = "asc"
 		} else {
-			if currentSession.SortDirection == "asc" {
-				currentSession.SortDirection = "desc"
+			if currentSession.SortDirection["peers"] == "asc" {
+				currentSession.SortDirection["peers"] = "desc"
 			} else {
-				currentSession.SortDirection = "asc"
+				currentSession.SortDirection["peers"] = "asc"
 			}
 		}
 
-		if err := s.updateSessionData(c, currentSession); err != nil {
+		if err := UpdateSessionData(c, currentSession); err != nil {
 			s.GetHandleError(c, http.StatusInternalServerError, "sort error", "failed to save session")
 			return
 		}
-		c.Redirect(http.StatusSeeOther, "/admin")
+		c.Redirect(http.StatusSeeOther, "/admin/")
 		return
 	}
 
 	search, searching := c.GetQuery("search")
 	if searching {
-		currentSession.Search = search
+		currentSession.Search["peers"] = search
 
-		if err := s.updateSessionData(c, currentSession); err != nil {
+		if err := UpdateSessionData(c, currentSession); err != nil {
 			s.GetHandleError(c, http.StatusInternalServerError, "search error", "failed to save session")
 			return
 		}
-		c.Redirect(http.StatusSeeOther, "/admin")
+		c.Redirect(http.StatusSeeOther, "/admin/")
 		return
 	}
 
-	device := s.users.GetDevice()
-	users := s.users.GetFilteredAndSortedUsers(currentSession.SortedBy, currentSession.SortDirection, currentSession.Search)
+	deviceName := c.Query("device")
+	if deviceName != "" {
+		if !common.ListContains(s.wg.Cfg.DeviceNames, deviceName) {
+			s.GetHandleError(c, http.StatusInternalServerError, "device selection error", "no such device")
+			return
+		}
+		currentSession.DeviceName = deviceName
 
-	c.HTML(http.StatusOK, "admin_index.html", struct {
-		Route        string
-		Alerts       []FlashData
-		Session      SessionData
-		Static       StaticData
-		Peers        []User
-		TotalPeers   int
-		Device       Device
-		LdapDisabled bool
-	}{
-		Route:        c.Request.URL.Path,
-		Alerts:       s.getFlashes(c),
-		Session:      currentSession,
-		Static:       s.getStaticData(),
-		Peers:        users,
-		TotalPeers:   len(s.users.GetAllUsers()),
-		Device:       device,
-		LdapDisabled: s.ldapDisabled,
+		if err := UpdateSessionData(c, currentSession); err != nil {
+			s.GetHandleError(c, http.StatusInternalServerError, "device selection error", "failed to save session")
+			return
+		}
+		c.Redirect(http.StatusSeeOther, "/admin/")
+		return
+	}
+
+	device := s.peers.GetDevice(currentSession.DeviceName)
+	users := s.peers.GetFilteredAndSortedPeers(currentSession.DeviceName, currentSession.SortedBy["peers"], currentSession.SortDirection["peers"], currentSession.Search["peers"])
+
+	c.HTML(http.StatusOK, "admin_index.html", gin.H{
+		"Route":       c.Request.URL.Path,
+		"Alerts":      GetFlashes(c),
+		"Session":     currentSession,
+		"Static":      s.getStaticData(),
+		"Peers":       users,
+		"TotalPeers":  len(s.peers.GetAllPeers(currentSession.DeviceName)),
+		"Users":       s.users.GetUsers(),
+		"Device":      device,
+		"DeviceNames": s.GetDeviceNames(),
 	})
 }
 
 func (s *Server) GetUserIndex(c *gin.Context) {
-	currentSession := s.getSessionData(c)
+	currentSession := GetSessionData(c)
 
 	sort := c.Query("sort")
 	if sort != "" {
-		if currentSession.SortedBy != sort {
-			currentSession.SortedBy = sort
-			currentSession.SortDirection = "asc"
+		if currentSession.SortedBy["userpeers"] != sort {
+			currentSession.SortedBy["userpeers"] = sort
+			currentSession.SortDirection["userpeers"] = "asc"
 		} else {
-			if currentSession.SortDirection == "asc" {
-				currentSession.SortDirection = "desc"
+			if currentSession.SortDirection["userpeers"] == "asc" {
+				currentSession.SortDirection["userpeers"] = "desc"
 			} else {
-				currentSession.SortDirection = "asc"
+				currentSession.SortDirection["userpeers"] = "asc"
 			}
 		}
 
-		if err := s.updateSessionData(c, currentSession); err != nil {
+		if err := UpdateSessionData(c, currentSession); err != nil {
 			s.GetHandleError(c, http.StatusInternalServerError, "sort error", "failed to save session")
 			return
 		}
@@ -120,68 +132,62 @@ func (s *Server) GetUserIndex(c *gin.Context) {
 		return
 	}
 
-	device := s.users.GetDevice()
-	users := s.users.GetSortedUsersForEmail(currentSession.SortedBy, currentSession.SortDirection, currentSession.Email)
+	peers := s.peers.GetSortedPeersForEmail(currentSession.SortedBy["userpeers"], currentSession.SortDirection["userpeers"], currentSession.Email)
 
-	c.HTML(http.StatusOK, "user_index.html", struct {
-		Route      string
-		Alerts     []FlashData
-		Session    SessionData
-		Static     StaticData
-		Peers      []User
-		TotalPeers int
-		Device     Device
-	}{
-		Route:      c.Request.URL.Path,
-		Alerts:     s.getFlashes(c),
-		Session:    currentSession,
-		Static:     s.getStaticData(),
-		Peers:      users,
-		TotalPeers: len(users),
-		Device:     device,
+	c.HTML(http.StatusOK, "user_index.html", gin.H{
+		"Route":       c.Request.URL.Path,
+		"Alerts":      GetFlashes(c),
+		"Session":     currentSession,
+		"Static":      s.getStaticData(),
+		"Peers":       peers,
+		"TotalPeers":  len(peers),
+		"Users":       []users.User{*s.users.GetUser(currentSession.Email)},
+		"Device":      s.peers.GetDevice(currentSession.DeviceName),
+		"DeviceNames": s.GetDeviceNames(),
 	})
 }
 
 func (s *Server) updateFormInSession(c *gin.Context, formData interface{}) error {
-	currentSession := s.getSessionData(c)
+	currentSession := GetSessionData(c)
 	currentSession.FormData = formData
 
-	if err := s.updateSessionData(c, currentSession); err != nil {
-		return err
+	if err := UpdateSessionData(c, currentSession); err != nil {
+		return errors.WithMessage(err, "failed to update form in session")
 	}
 
 	return nil
 }
 
-func (s *Server) setNewUserFormInSession(c *gin.Context) (SessionData, error) {
-	currentSession := s.getSessionData(c)
-	// If session does not contain a user form ignore update
+func (s *Server) setNewPeerFormInSession(c *gin.Context) (SessionData, error) {
+	currentSession := GetSessionData(c)
+
+	// If session does not contain a peer form ignore update
 	// If url contains a formerr parameter reset the form
 	if currentSession.FormData == nil || c.Query("formerr") == "" {
-		user, err := s.PrepareNewUser()
+		user, err := s.PrepareNewPeer(currentSession.DeviceName)
 		if err != nil {
-			return currentSession, err
+			return currentSession, errors.WithMessage(err, "failed to prepare new peer")
 		}
 		currentSession.FormData = user
 	}
 
-	if err := s.updateSessionData(c, currentSession); err != nil {
-		return currentSession, err
+	if err := UpdateSessionData(c, currentSession); err != nil {
+		return currentSession, errors.WithMessage(err, "failed to update peer form in session")
 	}
 
 	return currentSession, nil
 }
 
 func (s *Server) setFormInSession(c *gin.Context, formData interface{}) (SessionData, error) {
-	currentSession := s.getSessionData(c)
+	currentSession := GetSessionData(c)
 	// If session does not contain a form ignore update
 	// If url contains a formerr parameter reset the form
 	if currentSession.FormData == nil || c.Query("formerr") == "" {
 		currentSession.FormData = formData
 	}
 
-	if err := s.updateSessionData(c, currentSession); err != nil {
-		return currentSession, err
+	if err := UpdateSessionData(c, currentSession); err != nil {
+		return currentSession, errors.WithMessage(err, "failed to set form in session")
 	}
 
 	return currentSession, nil

internal/server/handlers_interface.go

@@ -1,114 +1,118 @@
 package server
 
 import (
+	"fmt"
 	"net/http"
 	"strings"
 
 	"github.com/gin-gonic/gin"
 	"github.com/h44z/wg-portal/internal/common"
+	"github.com/h44z/wg-portal/internal/wireguard"
+	csrf "github.com/utrack/gin-csrf"
 )
 
 func (s *Server) GetAdminEditInterface(c *gin.Context) {
-	device := s.users.GetDevice()
-	users := s.users.GetAllUsers()
-
+	currentSession := GetSessionData(c)
+	device := s.peers.GetDevice(currentSession.DeviceName)
 	currentSession, err := s.setFormInSession(c, device)
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "Session error", err.Error())
 		return
 	}
 
-	c.HTML(http.StatusOK, "admin_edit_interface.html", struct {
-		Route        string
-		Alerts       []FlashData
-		Session      SessionData
-		Static       StaticData
-		Peers        []User
-		Device       Device
-		EditableKeys bool
-	}{
-		Route:        c.Request.URL.Path,
-		Alerts:       s.getFlashes(c),
-		Session:      currentSession,
-		Static:       s.getStaticData(),
-		Peers:        users,
-		Device:       currentSession.FormData.(Device),
-		EditableKeys: s.config.Core.EditableKeys,
+	c.HTML(http.StatusOK, "admin_edit_interface.html", gin.H{
+		"Route":        c.Request.URL.Path,
+		"Alerts":       GetFlashes(c),
+		"Session":      currentSession,
+		"Static":       s.getStaticData(),
+		"Device":       currentSession.FormData.(wireguard.Device),
+		"EditableKeys": s.config.Core.EditableKeys,
+		"DeviceNames":  s.GetDeviceNames(),
+		"Csrf":         csrf.GetToken(c),
 	})
 }
 
 func (s *Server) PostAdminEditInterface(c *gin.Context) {
-	currentSession := s.getSessionData(c)
-	var formDevice Device
+	currentSession := GetSessionData(c)
+	var formDevice wireguard.Device
 	if currentSession.FormData != nil {
-		formDevice = currentSession.FormData.(Device)
+		formDevice = currentSession.FormData.(wireguard.Device)
 	}
 	if err := c.ShouldBind(&formDevice); err != nil {
 		_ = s.updateFormInSession(c, formDevice)
-		s.setFlashMessage(c, err.Error(), "danger")
+		SetFlashMessage(c, err.Error(), "danger")
 		c.Redirect(http.StatusSeeOther, "/admin/device/edit?formerr=bind")
 		return
 	}
 	// Clean list input
-	formDevice.IPs = common.ParseStringList(formDevice.IPsStr)
-	formDevice.AllowedIPs = common.ParseStringList(formDevice.AllowedIPsStr)
-	formDevice.DNS = common.ParseStringList(formDevice.DNSStr)
-	formDevice.IPsStr = common.ListToString(formDevice.IPs)
-	formDevice.AllowedIPsStr = common.ListToString(formDevice.AllowedIPs)
-	formDevice.DNSStr = common.ListToString(formDevice.DNS)
+	formDevice.IPsStr = common.ListToString(common.ParseStringList(formDevice.IPsStr))
+	formDevice.DefaultAllowedIPsStr = common.ListToString(common.ParseStringList(formDevice.DefaultAllowedIPsStr))
+	formDevice.DNSStr = common.ListToString(common.ParseStringList(formDevice.DNSStr))
+
+	// Clean interface parameters based on interface type
+	switch formDevice.Type {
+	case wireguard.DeviceTypeClient:
+		formDevice.ListenPort = 0
+		formDevice.DefaultEndpoint = ""
+		formDevice.DefaultAllowedIPsStr = ""
+		formDevice.DefaultPersistentKeepalive = 0
+		formDevice.SaveConfig = false
+	case wireguard.DeviceTypeServer:
+	}
 
 	// Update WireGuard device
-	err := s.wg.UpdateDevice(formDevice.DeviceName, formDevice.GetDeviceConfig())
+	err := s.wg.UpdateDevice(formDevice.DeviceName, formDevice.GetConfig())
 	if err != nil {
 		_ = s.updateFormInSession(c, formDevice)
-		s.setFlashMessage(c, "Failed to update device in WireGuard: "+err.Error(), "danger")
+		SetFlashMessage(c, "Failed to update device in WireGuard: "+err.Error(), "danger")
 		c.Redirect(http.StatusSeeOther, "/admin/device/edit?formerr=wg")
 		return
 	}
 
 	// Update in database
-	err = s.users.UpdateDevice(formDevice)
+	err = s.peers.UpdateDevice(formDevice)
 	if err != nil {
 		_ = s.updateFormInSession(c, formDevice)
-		s.setFlashMessage(c, "Failed to update device in database: "+err.Error(), "danger")
+		SetFlashMessage(c, "Failed to update device in database: "+err.Error(), "danger")
 		c.Redirect(http.StatusSeeOther, "/admin/device/edit?formerr=update")
 		return
 	}
 
 	// Update WireGuard config file
-	err = s.WriteWireGuardConfigFile()
+	err = s.WriteWireGuardConfigFile(currentSession.DeviceName)
 	if err != nil {
 		_ = s.updateFormInSession(c, formDevice)
-		s.setFlashMessage(c, "Failed to update wireguard config-file: "+err.Error(), "danger")
+		SetFlashMessage(c, "Failed to update WireGuard config-file: "+err.Error(), "danger")
 		c.Redirect(http.StatusSeeOther, "/admin/device/edit?formerr=update")
 		return
 	}
 
 	// Update interface IP address
 	if s.config.WG.ManageIPAddresses {
-		if err := s.wg.SetIPAddress(formDevice.IPs); err != nil {
+		if err := s.wg.SetIPAddress(currentSession.DeviceName, formDevice.GetIPAddresses()); err != nil {
 			_ = s.updateFormInSession(c, formDevice)
-			s.setFlashMessage(c, "Failed to update ip address: "+err.Error(), "danger")
+			SetFlashMessage(c, "Failed to update ip address: "+err.Error(), "danger")
 			c.Redirect(http.StatusSeeOther, "/admin/device/edit?formerr=update")
 		}
-		if err := s.wg.SetMTU(formDevice.Mtu); err != nil {
+		if err := s.wg.SetMTU(currentSession.DeviceName, formDevice.Mtu); err != nil {
 			_ = s.updateFormInSession(c, formDevice)
-			s.setFlashMessage(c, "Failed to update MTU: "+err.Error(), "danger")
+			SetFlashMessage(c, "Failed to update MTU: "+err.Error(), "danger")
 			c.Redirect(http.StatusSeeOther, "/admin/device/edit?formerr=update")
 		}
 	}
 
-	s.setFlashMessage(c, "Changes applied successfully!", "success")
+	SetFlashMessage(c, "Changes applied successfully!", "success")
 	if !s.config.WG.ManageIPAddresses {
-		s.setFlashMessage(c, "WireGuard must be restarted to apply ip changes.", "warning")
+		SetFlashMessage(c, "WireGuard must be restarted to apply ip changes.", "warning")
 	}
 	c.Redirect(http.StatusSeeOther, "/admin/device/edit")
 }
 
 func (s *Server) GetInterfaceConfig(c *gin.Context) {
-	device := s.users.GetDevice()
-	users := s.users.GetActiveUsers()
-	cfg, err := device.GetDeviceConfigFile(users)
+	currentSession := GetSessionData(c)
+	device := s.peers.GetDevice(currentSession.DeviceName)
+	peers := s.peers.GetActivePeers(device.DeviceName)
+	cfg, err := device.GetConfigFile(peers)
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "ConfigFile error", err.Error())
 		return
@@ -121,20 +125,53 @@ func (s *Server) GetInterfaceConfig(c *gin.Context) {
 	return
 }
 
+func (s *Server) GetSaveConfig(c *gin.Context) {
+	currentSession := GetSessionData(c)
+
+	err := s.WriteWireGuardConfigFile(currentSession.DeviceName)
+	if err != nil {
+		SetFlashMessage(c, "Failed to save WireGuard config-file: "+err.Error(), "danger")
+		c.Redirect(http.StatusSeeOther, "/admin/")
+		return
+	}
+
+	SetFlashMessage(c, "Updated WireGuard config-file", "success")
+	c.Redirect(http.StatusSeeOther, "/admin/")
+	return
+}
+
 func (s *Server) GetApplyGlobalConfig(c *gin.Context) {
-	device := s.users.GetDevice()
-	users := s.users.GetAllUsers()
+	currentSession := GetSessionData(c)
+	device := s.peers.GetDevice(currentSession.DeviceName)
+	peers := s.peers.GetAllPeers(device.DeviceName)
 
-	for _, user := range users {
-		user.AllowedIPs = device.AllowedIPs
-		user.AllowedIPsStr = device.AllowedIPsStr
-		if err := s.users.UpdateUser(user); err != nil {
-			s.setFlashMessage(c, err.Error(), "danger")
-			c.Redirect(http.StatusSeeOther, "/admin/device/edit")
-		}
-	}
-
-	s.setFlashMessage(c, "Allowed ip's updated for all clients.", "success")
+	if device.Type == wireguard.DeviceTypeClient {
+		SetFlashMessage(c, "Cannot apply global configuration while interface is in client mode.", "danger")
+		c.Redirect(http.StatusSeeOther, "/admin/device/edit")
+		return
+	}
+
+	updateCounter := 0
+	for _, peer := range peers {
+		if peer.IgnoreGlobalSettings {
+			continue
+		}
+
+		peer.AllowedIPsStr = device.DefaultAllowedIPsStr
+		peer.Endpoint = device.DefaultEndpoint
+		peer.PersistentKeepalive = device.DefaultPersistentKeepalive
+		peer.DNSStr = device.DNSStr
+		peer.Mtu = device.Mtu
+
+		if err := s.peers.UpdatePeer(peer); err != nil {
+			SetFlashMessage(c, err.Error(), "danger")
+			c.Redirect(http.StatusSeeOther, "/admin/device/edit")
+			return
+		}
+		updateCounter++
+	}
+
+	SetFlashMessage(c, fmt.Sprintf("Global configuration updated for %d clients.", updateCounter), "success")
 	c.Redirect(http.StatusSeeOther, "/admin/device/edit")
 	return
 }

internal/server/handlers_peer.go

@@ -10,9 +10,11 @@ import (
 
 	"github.com/gin-gonic/gin"
 	"github.com/h44z/wg-portal/internal/common"
-	"github.com/h44z/wg-portal/internal/ldap"
-	log "github.com/sirupsen/logrus"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/h44z/wg-portal/internal/wireguard"
+	"github.com/sirupsen/logrus"
 	"github.com/tatsushid/go-fastping"
+	csrf "github.com/utrack/gin-csrf"
 )
 
 type LdapCreateForm struct {
@@ -21,136 +23,121 @@ type LdapCreateForm struct {
 }
 
 func (s *Server) GetAdminEditPeer(c *gin.Context) {
-	device := s.users.GetDevice()
-	user := s.users.GetUserByKey(c.Query("pkey"))
+	peer := s.peers.GetPeerByKey(c.Query("pkey"))
 
-	currentSession, err := s.setFormInSession(c, user)
+	currentSession, err := s.setFormInSession(c, peer)
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "Session error", err.Error())
 		return
 	}
 
-	c.HTML(http.StatusOK, "admin_edit_client.html", struct {
-		Route        string
-		Alerts       []FlashData
-		Session      SessionData
-		Static       StaticData
-		Peer         User
-		Device       Device
-		EditableKeys bool
-	}{
-		Route:        c.Request.URL.Path,
-		Alerts:       s.getFlashes(c),
-		Session:      currentSession,
-		Static:       s.getStaticData(),
-		Peer:         currentSession.FormData.(User),
-		Device:       device,
-		EditableKeys: s.config.Core.EditableKeys,
+	c.HTML(http.StatusOK, "admin_edit_client.html", gin.H{
+		"Route":        c.Request.URL.Path,
+		"Alerts":       GetFlashes(c),
+		"Session":      currentSession,
+		"Static":       s.getStaticData(),
+		"Peer":         currentSession.FormData.(wireguard.Peer),
+		"EditableKeys": s.config.Core.EditableKeys,
+		"Device":       s.peers.GetDevice(currentSession.DeviceName),
+		"DeviceNames":  s.GetDeviceNames(),
+		"AdminEmail":   s.config.Core.AdminUser,
+		"Csrf":         csrf.GetToken(c),
 	})
 }
 
 func (s *Server) PostAdminEditPeer(c *gin.Context) {
-	currentUser := s.users.GetUserByKey(c.Query("pkey"))
+	currentPeer := s.peers.GetPeerByKey(c.Query("pkey"))
 	urlEncodedKey := url.QueryEscape(c.Query("pkey"))
 
-	currentSession := s.getSessionData(c)
-	var formUser User
+	currentSession := GetSessionData(c)
+	var formPeer wireguard.Peer
 	if currentSession.FormData != nil {
-		formUser = currentSession.FormData.(User)
+		formPeer = currentSession.FormData.(wireguard.Peer)
 	}
-	if err := c.ShouldBind(&formUser); err != nil {
-		_ = s.updateFormInSession(c, formUser)
-		s.setFlashMessage(c, "failed to bind form data: "+err.Error(), "danger")
+	if err := c.ShouldBind(&formPeer); err != nil {
+		_ = s.updateFormInSession(c, formPeer)
+		SetFlashMessage(c, "failed to bind form data: "+err.Error(), "danger")
 		c.Redirect(http.StatusSeeOther, "/admin/peer/edit?pkey="+urlEncodedKey+"&formerr=bind")
 		return
 	}
 
 	// Clean list input
-	formUser.IPs = common.ParseStringList(formUser.IPsStr)
-	formUser.AllowedIPs = common.ParseStringList(formUser.AllowedIPsStr)
-	formUser.IPsStr = common.ListToString(formUser.IPs)
-	formUser.AllowedIPsStr = common.ListToString(formUser.AllowedIPs)
+	formPeer.IPsStr = common.ListToString(common.ParseStringList(formPeer.IPsStr))
+	formPeer.AllowedIPsStr = common.ListToString(common.ParseStringList(formPeer.AllowedIPsStr))
+	formPeer.AllowedIPsSrvStr = common.ListToString(common.ParseStringList(formPeer.AllowedIPsSrvStr))
 
 	disabled := c.PostForm("isdisabled") != ""
 	now := time.Now()
-	if disabled && currentUser.DeactivatedAt == nil {
-		formUser.DeactivatedAt = &now
+	if disabled && currentPeer.DeactivatedAt == nil {
+		formPeer.DeactivatedAt = &now
 	} else if !disabled {
-		formUser.DeactivatedAt = nil
+		formPeer.DeactivatedAt = nil
 	}
 
 	// Update in database
-	if err := s.UpdateUser(formUser, now); err != nil {
-		_ = s.updateFormInSession(c, formUser)
-		s.setFlashMessage(c, "failed to update user: "+err.Error(), "danger")
+	if err := s.UpdatePeer(formPeer, now); err != nil {
+		_ = s.updateFormInSession(c, formPeer)
+		SetFlashMessage(c, "failed to update user: "+err.Error(), "danger")
 		c.Redirect(http.StatusSeeOther, "/admin/peer/edit?pkey="+urlEncodedKey+"&formerr=update")
 		return
 	}
 
-	s.setFlashMessage(c, "changes applied successfully", "success")
+	SetFlashMessage(c, "changes applied successfully", "success")
 	c.Redirect(http.StatusSeeOther, "/admin/peer/edit?pkey="+urlEncodedKey)
 }
 
 func (s *Server) GetAdminCreatePeer(c *gin.Context) {
-	device := s.users.GetDevice()
-
-	currentSession, err := s.setNewUserFormInSession(c)
+	currentSession, err := s.setNewPeerFormInSession(c)
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "Session error", err.Error())
 		return
 	}
-	c.HTML(http.StatusOK, "admin_edit_client.html", struct {
-		Route        string
-		Alerts       []FlashData
-		Session      SessionData
-		Static       StaticData
-		Peer         User
-		Device       Device
-		EditableKeys bool
-	}{
-		Route:        c.Request.URL.Path,
-		Alerts:       s.getFlashes(c),
-		Session:      currentSession,
-		Static:       s.getStaticData(),
-		Peer:         currentSession.FormData.(User),
-		Device:       device,
-		EditableKeys: s.config.Core.EditableKeys,
+	c.HTML(http.StatusOK, "admin_edit_client.html", gin.H{
+		"Route":        c.Request.URL.Path,
+		"Alerts":       GetFlashes(c),
+		"Session":      currentSession,
+		"Static":       s.getStaticData(),
+		"Peer":         currentSession.FormData.(wireguard.Peer),
+		"EditableKeys": s.config.Core.EditableKeys,
+		"Device":       s.peers.GetDevice(currentSession.DeviceName),
+		"DeviceNames":  s.GetDeviceNames(),
+		"AdminEmail":   s.config.Core.AdminUser,
+		"Csrf":         csrf.GetToken(c),
 	})
 }
 
 func (s *Server) PostAdminCreatePeer(c *gin.Context) {
-	currentSession := s.getSessionData(c)
-	var formUser User
+	currentSession := GetSessionData(c)
+	var formPeer wireguard.Peer
 	if currentSession.FormData != nil {
-		formUser = currentSession.FormData.(User)
+		formPeer = currentSession.FormData.(wireguard.Peer)
 	}
-	if err := c.ShouldBind(&formUser); err != nil {
-		_ = s.updateFormInSession(c, formUser)
-		s.setFlashMessage(c, "failed to bind form data: "+err.Error(), "danger")
+	if err := c.ShouldBind(&formPeer); err != nil {
+		_ = s.updateFormInSession(c, formPeer)
+		SetFlashMessage(c, "failed to bind form data: "+err.Error(), "danger")
 		c.Redirect(http.StatusSeeOther, "/admin/peer/create?formerr=bind")
 		return
 	}
 
 	// Clean list input
-	formUser.IPs = common.ParseStringList(formUser.IPsStr)
-	formUser.AllowedIPs = common.ParseStringList(formUser.AllowedIPsStr)
-	formUser.IPsStr = common.ListToString(formUser.IPs)
-	formUser.AllowedIPsStr = common.ListToString(formUser.AllowedIPs)
+	formPeer.IPsStr = common.ListToString(common.ParseStringList(formPeer.IPsStr))
+	formPeer.AllowedIPsStr = common.ListToString(common.ParseStringList(formPeer.AllowedIPsStr))
+	formPeer.AllowedIPsSrvStr = common.ListToString(common.ParseStringList(formPeer.AllowedIPsSrvStr))
 
 	disabled := c.PostForm("isdisabled") != ""
 	now := time.Now()
 	if disabled {
-		formUser.DeactivatedAt = &now
+		formPeer.DeactivatedAt = &now
 	}
 
-	if err := s.CreateUser(formUser); err != nil {
-		_ = s.updateFormInSession(c, formUser)
-		s.setFlashMessage(c, "failed to add user: "+err.Error(), "danger")
+	if err := s.CreatePeer(currentSession.DeviceName, formPeer); err != nil {
+		_ = s.updateFormInSession(c, formPeer)
+		SetFlashMessage(c, "failed to add user: "+err.Error(), "danger")
 		c.Redirect(http.StatusSeeOther, "/admin/peer/create?formerr=create")
 		return
 	}
 
-	s.setFlashMessage(c, "client created successfully", "success")
+	SetFlashMessage(c, "client created successfully", "success")
 	c.Redirect(http.StatusSeeOther, "/admin")
 }
 
@@ -161,34 +148,28 @@ func (s *Server) GetAdminCreateLdapPeers(c *gin.Context) {
 		return
 	}
 
-	c.HTML(http.StatusOK, "admin_create_clients.html", struct {
-		Route    string
-		Alerts   []FlashData
-		Session  SessionData
-		Static   StaticData
-		Users    []*ldap.UserCacheHolderEntry
-		FormData LdapCreateForm
-		Device   Device
-	}{
-		Route:    c.Request.URL.Path,
-		Alerts:   s.getFlashes(c),
-		Session:  currentSession,
-		Static:   s.getStaticData(),
-		Users:    s.ldapUsers.GetSortedUsers("sn", "asc"),
-		FormData: currentSession.FormData.(LdapCreateForm),
-		Device:   s.users.GetDevice(),
+	c.HTML(http.StatusOK, "admin_create_clients.html", gin.H{
+		"Route":       c.Request.URL.Path,
+		"Alerts":      GetFlashes(c),
+		"Session":     currentSession,
+		"Static":      s.getStaticData(),
+		"Users":       s.users.GetFilteredAndSortedUsers("lastname", "asc", ""),
+		"FormData":    currentSession.FormData.(LdapCreateForm),
+		"Device":      s.peers.GetDevice(currentSession.DeviceName),
+		"DeviceNames": s.GetDeviceNames(),
+		"Csrf":        csrf.GetToken(c),
 	})
 }
 
 func (s *Server) PostAdminCreateLdapPeers(c *gin.Context) {
-	currentSession := s.getSessionData(c)
+	currentSession := GetSessionData(c)
 	var formData LdapCreateForm
 	if currentSession.FormData != nil {
 		formData = currentSession.FormData.(LdapCreateForm)
 	}
 	if err := c.ShouldBind(&formData); err != nil {
 		_ = s.updateFormInSession(c, formData)
-		s.setFlashMessage(c, "failed to bind form data: "+err.Error(), "danger")
+		SetFlashMessage(c, "failed to bind form data: "+err.Error(), "danger")
 		c.Redirect(http.StatusSeeOther, "/admin/peer/createldap?formerr=bind")
 		return
 	}
@@ -196,48 +177,48 @@ func (s *Server) PostAdminCreateLdapPeers(c *gin.Context) {
 	emails := common.ParseStringList(formData.Emails)
 	for i := range emails {
 		// TODO: also check email addr for validity?
-		if !strings.ContainsRune(emails[i], '@') || s.ldapUsers.GetUserDNByMail(emails[i]) == "" {
+		if !strings.ContainsRune(emails[i], '@') {
 			_ = s.updateFormInSession(c, formData)
-			s.setFlashMessage(c, "invalid email address: "+emails[i], "danger")
+			SetFlashMessage(c, "invalid email address: "+emails[i], "danger")
 			c.Redirect(http.StatusSeeOther, "/admin/peer/createldap?formerr=mail")
 			return
 		}
 	}
 
-	log.Infof("creating %d ldap peers", len(emails))
+	logrus.Infof("creating %d ldap peers", len(emails))
 
 	for i := range emails {
-		if err := s.CreateUserByEmail(emails[i], formData.Identifier, false); err != nil {
+		if err := s.CreatePeerByEmail(currentSession.DeviceName, emails[i], formData.Identifier, false); err != nil {
 			_ = s.updateFormInSession(c, formData)
-			s.setFlashMessage(c, "failed to add user: "+err.Error(), "danger")
+			SetFlashMessage(c, "failed to add user: "+err.Error(), "danger")
 			c.Redirect(http.StatusSeeOther, "/admin/peer/createldap?formerr=create")
 			return
 		}
 	}
 
-	s.setFlashMessage(c, "client(s) created successfully", "success")
+	SetFlashMessage(c, "client(s) created successfully", "success")
 	c.Redirect(http.StatusSeeOther, "/admin/peer/createldap")
 }
 
 func (s *Server) GetAdminDeletePeer(c *gin.Context) {
-	currentUser := s.users.GetUserByKey(c.Query("pkey"))
-	if err := s.DeleteUser(currentUser); err != nil {
+	currentPeer := s.peers.GetPeerByKey(c.Query("pkey"))
+	if err := s.DeletePeer(currentPeer); err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "Deletion error", err.Error())
 		return
 	}
-	s.setFlashMessage(c, "user deleted successfully", "success")
+	SetFlashMessage(c, "peer deleted successfully", "success")
 	c.Redirect(http.StatusSeeOther, "/admin")
 }
 
 func (s *Server) GetPeerQRCode(c *gin.Context) {
-	user := s.users.GetUserByKey(c.Query("pkey"))
-	currentSession := s.getSessionData(c)
-	if !currentSession.IsAdmin && user.Email != currentSession.Email {
+	peer := s.peers.GetPeerByKey(c.Query("pkey"))
+	currentSession := GetSessionData(c)
+	if !currentSession.IsAdmin && peer.Email != currentSession.Email {
 		s.GetHandleError(c, http.StatusUnauthorized, "No permissions", "You don't have permissions to view this resource!")
 		return
 	}
 
-	png, err := user.GetQRCode()
+	png, err := peer.GetQRCode()
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "QRCode error", err.Error())
 		return
@@ -247,51 +228,56 @@ func (s *Server) GetPeerQRCode(c *gin.Context) {
 }
 
 func (s *Server) GetPeerConfig(c *gin.Context) {
-	user := s.users.GetUserByKey(c.Query("pkey"))
-	currentSession := s.getSessionData(c)
-	if !currentSession.IsAdmin && user.Email != currentSession.Email {
+	peer := s.peers.GetPeerByKey(c.Query("pkey"))
+	currentSession := GetSessionData(c)
+	if !currentSession.IsAdmin && peer.Email != currentSession.Email {
 		s.GetHandleError(c, http.StatusUnauthorized, "No permissions", "You don't have permissions to view this resource!")
 		return
 	}
 
-	cfg, err := user.GetClientConfigFile(s.users.GetDevice())
+	cfg, err := peer.GetConfigFile(s.peers.GetDevice(currentSession.DeviceName))
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "ConfigFile error", err.Error())
 		return
 	}
 
-	c.Header("Content-Disposition", "attachment; filename="+user.GetConfigFileName())
+	c.Header("Content-Disposition", "attachment; filename="+peer.GetConfigFileName())
 	c.Data(http.StatusOK, "application/config", cfg)
 	return
 }
 
 func (s *Server) GetPeerConfigMail(c *gin.Context) {
-	user := s.users.GetUserByKey(c.Query("pkey"))
-	currentSession := s.getSessionData(c)
-	if !currentSession.IsAdmin && user.Email != currentSession.Email {
+	peer := s.peers.GetPeerByKey(c.Query("pkey"))
+	currentSession := GetSessionData(c)
+	if !currentSession.IsAdmin && peer.Email != currentSession.Email {
 		s.GetHandleError(c, http.StatusUnauthorized, "No permissions", "You don't have permissions to view this resource!")
 		return
 	}
 
-	cfg, err := user.GetClientConfigFile(s.users.GetDevice())
+	user := s.users.GetUser(peer.Email)
+
+	cfg, err := peer.GetConfigFile(s.peers.GetDevice(currentSession.DeviceName))
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "ConfigFile error", err.Error())
 		return
 	}
-	png, err := user.GetQRCode()
+	png, err := peer.GetQRCode()
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "QRCode error", err.Error())
 		return
 	}
 	// Apply mail template
+	qrcodeFileName := "wireguard-qrcode.png"
 	var tplBuff bytes.Buffer
 	if err := s.mailTpl.Execute(&tplBuff, struct {
-		Client        User
+		Peer          wireguard.Peer
+		User          *users.User
 		QrcodePngName string
 		PortalUrl     string
 	}{
-		Client:        user,
-		QrcodePngName: "wireguard-config.png",
+		Peer:          peer,
+		User:          user,
+		QrcodePngName: qrcodeFileName,
 		PortalUrl:     s.config.Core.ExternalUrl,
 	}); err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "Template error", err.Error())
@@ -301,12 +287,18 @@ func (s *Server) GetPeerConfigMail(c *gin.Context) {
 	// Send mail
 	attachments := []common.MailAttachment{
 		{
-			Name:        user.GetConfigFileName(),
+			Name:        peer.GetConfigFileName(),
 			ContentType: "application/config",
 			Data:        bytes.NewReader(cfg),
 		},
 		{
-			Name:        "wireguard-config.png",
+			Name:        qrcodeFileName,
+			ContentType: "image/png",
+			Data:        bytes.NewReader(png),
+			Embedded:    true,
+		},
+		{
+			Name:        qrcodeFileName,
 			ContentType: "image/png",
 			Data:        bytes.NewReader(png),
 		},
@@ -314,24 +306,28 @@ func (s *Server) GetPeerConfigMail(c *gin.Context) {
 
 	if err := common.SendEmailWithAttachments(s.config.Email, s.config.Core.MailFrom, "", "WireGuard VPN Configuration",
 		"Your mail client does not support HTML. Please find the configuration attached to this mail.", tplBuff.String(),
-		[]string{user.Email}, attachments); err != nil {
+		[]string{peer.Email}, attachments); err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "Email error", err.Error())
 		return
 	}
 
-	s.setFlashMessage(c, "mail sent successfully", "success")
+	SetFlashMessage(c, "mail sent successfully", "success")
+	if strings.HasPrefix(c.Request.URL.Path, "/user") {
+		c.Redirect(http.StatusSeeOther, "/user/profile")
+	} else {
 		c.Redirect(http.StatusSeeOther, "/admin")
 	}
+}
 
 func (s *Server) GetPeerStatus(c *gin.Context) {
-	user := s.users.GetUserByKey(c.Query("pkey"))
-	currentSession := s.getSessionData(c)
-	if !currentSession.IsAdmin && user.Email != currentSession.Email {
+	peer := s.peers.GetPeerByKey(c.Query("pkey"))
+	currentSession := GetSessionData(c)
+	if !currentSession.IsAdmin && peer.Email != currentSession.Email {
 		s.GetHandleError(c, http.StatusUnauthorized, "No permissions", "You don't have permissions to view this resource!")
 		return
 	}
 
-	if user.Peer == nil { // no peer means disabled
+	if peer.Peer == nil { // no peer means disabled
 		c.JSON(http.StatusOK, false)
 		return
 	}
@@ -339,7 +335,7 @@ func (s *Server) GetPeerStatus(c *gin.Context) {
 	isOnline := false
 	ping := make(chan bool)
 	defer close(ping)
-	for _, cidr := range user.IPs {
+	for _, cidr := range peer.GetIPAddresses() {
 		ip, _, _ := net.ParseCIDR(cidr)
 		var ra *net.IPAddr
 		if common.IsIPv6(ip.String()) {

internal/server/handlers_user.go

@@ -0,0 +1,192 @@
+package server
+
+import (
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/h44z/wg-portal/internal/users"
+	csrf "github.com/utrack/gin-csrf"
+	"gorm.io/gorm"
+)
+
+func (s *Server) GetAdminUsersIndex(c *gin.Context) {
+	currentSession := GetSessionData(c)
+
+	sort := c.Query("sort")
+	if sort != "" {
+		if currentSession.SortedBy["users"] != sort {
+			currentSession.SortedBy["users"] = sort
+			currentSession.SortDirection["users"] = "asc"
+		} else {
+			if currentSession.SortDirection["users"] == "asc" {
+				currentSession.SortDirection["users"] = "desc"
+			} else {
+				currentSession.SortDirection["users"] = "asc"
+			}
+		}
+
+		if err := UpdateSessionData(c, currentSession); err != nil {
+			s.GetHandleError(c, http.StatusInternalServerError, "sort error", "failed to save session")
+			return
+		}
+		c.Redirect(http.StatusSeeOther, "/admin/users/")
+		return
+	}
+
+	search, searching := c.GetQuery("search")
+	if searching {
+		currentSession.Search["users"] = search
+
+		if err := UpdateSessionData(c, currentSession); err != nil {
+			s.GetHandleError(c, http.StatusInternalServerError, "search error", "failed to save session")
+			return
+		}
+		c.Redirect(http.StatusSeeOther, "/admin/users/")
+		return
+	}
+
+	dbUsers := s.users.GetFilteredAndSortedUsersUnscoped(currentSession.SortedBy["users"], currentSession.SortDirection["users"], currentSession.Search["users"])
+
+	c.HTML(http.StatusOK, "admin_user_index.html", gin.H{
+		"Route":       c.Request.URL.Path,
+		"Alerts":      GetFlashes(c),
+		"Session":     currentSession,
+		"Static":      s.getStaticData(),
+		"Users":       dbUsers,
+		"TotalUsers":  len(s.users.GetUsers()),
+		"Device":      s.peers.GetDevice(currentSession.DeviceName),
+		"DeviceNames": s.GetDeviceNames(),
+	})
+}
+
+func (s *Server) GetAdminUsersEdit(c *gin.Context) {
+	user := s.users.GetUserUnscoped(c.Query("pkey"))
+
+	currentSession, err := s.setFormInSession(c, *user)
+	if err != nil {
+		s.GetHandleError(c, http.StatusInternalServerError, "Session error", err.Error())
+		return
+	}
+
+	c.HTML(http.StatusOK, "admin_edit_user.html", gin.H{
+		"Route":       c.Request.URL.Path,
+		"Alerts":      GetFlashes(c),
+		"Session":     currentSession,
+		"Static":      s.getStaticData(),
+		"User":        currentSession.FormData.(users.User),
+		"Device":      s.peers.GetDevice(currentSession.DeviceName),
+		"DeviceNames": s.GetDeviceNames(),
+		"Epoch":       time.Time{},
+		"Csrf":        csrf.GetToken(c),
+	})
+}
+
+func (s *Server) PostAdminUsersEdit(c *gin.Context) {
+	currentUser := s.users.GetUserUnscoped(c.Query("pkey"))
+	if currentUser == nil {
+		SetFlashMessage(c, "invalid user", "danger")
+		c.Redirect(http.StatusSeeOther, "/admin/users/")
+		return
+	}
+	urlEncodedKey := url.QueryEscape(c.Query("pkey"))
+
+	currentSession := GetSessionData(c)
+	var formUser users.User
+	if currentSession.FormData != nil {
+		formUser = currentSession.FormData.(users.User)
+	}
+	if err := c.ShouldBind(&formUser); err != nil {
+		_ = s.updateFormInSession(c, formUser)
+		SetFlashMessage(c, "failed to bind form data: "+err.Error(), "danger")
+		c.Redirect(http.StatusSeeOther, "/admin/users/edit?pkey="+urlEncodedKey+"&formerr=bind")
+		return
+	}
+
+	disabled := c.PostForm("isdisabled") != ""
+	if disabled {
+		formUser.DeletedAt = gorm.DeletedAt{
+			Time:  time.Now(),
+			Valid: true,
+		}
+	} else {
+		formUser.DeletedAt = gorm.DeletedAt{}
+	}
+	formUser.IsAdmin = c.PostForm("isadmin") == "true"
+
+	if err := s.UpdateUser(formUser); err != nil {
+		_ = s.updateFormInSession(c, formUser)
+		SetFlashMessage(c, "failed to update user: "+err.Error(), "danger")
+		c.Redirect(http.StatusSeeOther, "/admin/users/edit?pkey="+urlEncodedKey+"&formerr=update")
+		return
+	}
+
+	SetFlashMessage(c, "changes applied successfully", "success")
+	c.Redirect(http.StatusSeeOther, "/admin/users/edit?pkey="+urlEncodedKey)
+}
+
+func (s *Server) GetAdminUsersCreate(c *gin.Context) {
+	user := users.User{}
+
+	currentSession, err := s.setFormInSession(c, user)
+	if err != nil {
+		s.GetHandleError(c, http.StatusInternalServerError, "Session error", err.Error())
+		return
+	}
+
+	c.HTML(http.StatusOK, "admin_edit_user.html", gin.H{
+		"Route":       c.Request.URL.Path,
+		"Alerts":      GetFlashes(c),
+		"Session":     currentSession,
+		"Static":      s.getStaticData(),
+		"User":        currentSession.FormData.(users.User),
+		"Device":      s.peers.GetDevice(currentSession.DeviceName),
+		"DeviceNames": s.GetDeviceNames(),
+		"Epoch":       time.Time{},
+		"Csrf":        csrf.GetToken(c),
+	})
+}
+
+func (s *Server) PostAdminUsersCreate(c *gin.Context) {
+	currentSession := GetSessionData(c)
+	var formUser users.User
+	if currentSession.FormData != nil {
+		formUser = currentSession.FormData.(users.User)
+	}
+	if err := c.ShouldBind(&formUser); err != nil {
+		_ = s.updateFormInSession(c, formUser)
+		SetFlashMessage(c, "failed to bind form data: "+err.Error(), "danger")
+		c.Redirect(http.StatusSeeOther, "/admin/users/create?formerr=bind")
+		return
+	}
+
+	if formUser.Password == "" {
+		_ = s.updateFormInSession(c, formUser)
+		SetFlashMessage(c, "invalid password", "danger")
+		c.Redirect(http.StatusSeeOther, "/admin/users/create?formerr=create")
+		return
+	}
+
+	disabled := c.PostForm("isdisabled") != ""
+	if disabled {
+		formUser.DeletedAt = gorm.DeletedAt{
+			Time:  time.Now(),
+			Valid: true,
+		}
+	} else {
+		formUser.DeletedAt = gorm.DeletedAt{}
+	}
+	formUser.IsAdmin = c.PostForm("isadmin") == "true"
+	formUser.Source = users.UserSourceDatabase
+
+	if err := s.CreateUser(formUser, currentSession.DeviceName); err != nil {
+		_ = s.updateFormInSession(c, formUser)
+		SetFlashMessage(c, "failed to add user: "+err.Error(), "danger")
+		c.Redirect(http.StatusSeeOther, "/admin/users/create?formerr=create")
+		return
+	}
+
+	SetFlashMessage(c, "user created successfully", "success")
+	c.Redirect(http.StatusSeeOther, "/admin/users/")
+}

internal/server/helper.go

@@ -1,201 +0,0 @@
-package server
-
-import (
-	"crypto/md5"
-	"errors"
-	"fmt"
-	"io/ioutil"
-	"syscall"
-	"time"
-
-	"github.com/h44z/wg-portal/internal/common"
-
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-)
-
-func (s *Server) PrepareNewUser() (User, error) {
-	device := s.users.GetDevice()
-
-	user := User{}
-	user.IsNew = true
-	user.AllowedIPsStr = device.AllowedIPsStr
-	user.IPs = make([]string, len(device.IPs))
-	for i := range device.IPs {
-		freeIP, err := s.users.GetAvailableIp(device.IPs[i])
-		if err != nil {
-			return User{}, err
-		}
-		user.IPs[i] = freeIP
-	}
-	user.IPsStr = common.ListToString(user.IPs)
-	psk, err := wgtypes.GenerateKey()
-	if err != nil {
-		return User{}, err
-	}
-	key, err := wgtypes.GeneratePrivateKey()
-	if err != nil {
-		return User{}, err
-	}
-	user.PresharedKey = psk.String()
-	user.PrivateKey = key.String()
-	user.PublicKey = key.PublicKey().String()
-	user.UID = fmt.Sprintf("u%x", md5.Sum([]byte(user.PublicKey)))
-
-	return user, nil
-}
-
-func (s *Server) CreateUserByEmail(email, identifierSuffix string, disabled bool) error {
-	ldapUser := s.ldapUsers.GetUserData(s.ldapUsers.GetUserDNByMail(email))
-	if ldapUser.DN == "" {
-		return errors.New("no user with email " + email + " found")
-	}
-
-	device := s.users.GetDevice()
-	user := User{}
-	user.AllowedIPsStr = device.AllowedIPsStr
-	user.IPs = make([]string, len(device.IPs))
-	for i := range device.IPs {
-		freeIP, err := s.users.GetAvailableIp(device.IPs[i])
-		if err != nil {
-			return err
-		}
-		user.IPs[i] = freeIP
-	}
-	user.IPsStr = common.ListToString(user.IPs)
-	psk, err := wgtypes.GenerateKey()
-	if err != nil {
-		return err
-	}
-	key, err := wgtypes.GeneratePrivateKey()
-	if err != nil {
-		return err
-	}
-	user.PresharedKey = psk.String()
-	user.PrivateKey = key.String()
-	user.PublicKey = key.PublicKey().String()
-	user.UID = fmt.Sprintf("u%x", md5.Sum([]byte(user.PublicKey)))
-	user.Email = email
-	user.Identifier = fmt.Sprintf("%s %s (%s)", ldapUser.Firstname, ldapUser.Lastname, identifierSuffix)
-	now := time.Now()
-	if disabled {
-		user.DeactivatedAt = &now
-	}
-
-	return s.CreateUser(user)
-}
-
-func (s *Server) CreateUser(user User) error {
-
-	device := s.users.GetDevice()
-	user.AllowedIPsStr = device.AllowedIPsStr
-	if len(user.IPs) == 0 {
-		for i := range device.IPs {
-			freeIP, err := s.users.GetAvailableIp(device.IPs[i])
-			if err != nil {
-				return err
-			}
-			user.IPs[i] = freeIP
-		}
-		user.IPsStr = common.ListToString(user.IPs)
-	}
-	if user.PrivateKey == "" { // if private key is empty create a new one
-		psk, err := wgtypes.GenerateKey()
-		if err != nil {
-			return err
-		}
-		key, err := wgtypes.GeneratePrivateKey()
-		if err != nil {
-			return err
-		}
-		user.PresharedKey = psk.String()
-		user.PrivateKey = key.String()
-		user.PublicKey = key.PublicKey().String()
-	}
-	user.UID = fmt.Sprintf("u%x", md5.Sum([]byte(user.PublicKey)))
-
-	// Create WireGuard interface
-	if user.DeactivatedAt == nil {
-		if err := s.wg.AddPeer(user.GetPeerConfig()); err != nil {
-			return err
-		}
-	}
-
-	// Create in database
-	if err := s.users.CreateUser(user); err != nil {
-		return err
-	}
-
-	return s.WriteWireGuardConfigFile()
-}
-
-func (s *Server) UpdateUser(user User, updateTime time.Time) error {
-	currentUser := s.users.GetUserByKey(user.PublicKey)
-
-	// Update WireGuard device
-	var err error
-	switch {
-	case user.DeactivatedAt == &updateTime:
-		err = s.wg.RemovePeer(user.PublicKey)
-	case user.DeactivatedAt == nil && currentUser.Peer != nil:
-		err = s.wg.UpdatePeer(user.GetPeerConfig())
-	case user.DeactivatedAt == nil && currentUser.Peer == nil:
-		err = s.wg.AddPeer(user.GetPeerConfig())
-	}
-	if err != nil {
-		return err
-	}
-
-	// Update in database
-	if err := s.users.UpdateUser(user); err != nil {
-		return err
-	}
-
-	return s.WriteWireGuardConfigFile()
-}
-
-func (s *Server) DeleteUser(user User) error {
-	// Delete WireGuard peer
-	if err := s.wg.RemovePeer(user.PublicKey); err != nil {
-		return err
-	}
-
-	// Delete in database
-	if err := s.users.DeleteUser(user); err != nil {
-		return err
-	}
-
-	return s.WriteWireGuardConfigFile()
-}
-
-func (s *Server) RestoreWireGuardInterface() error {
-	activeUsers := s.users.GetActiveUsers()
-
-	for i := range activeUsers {
-		if activeUsers[i].Peer == nil {
-			if err := s.wg.AddPeer(activeUsers[i].GetPeerConfig()); err != nil {
-				return err
-			}
-		}
-	}
-
-	return nil
-}
-
-func (s *Server) WriteWireGuardConfigFile() error {
-	if s.config.WG.WireGuardConfig == "" {
-		return nil // writing disabled
-	}
-	if err := syscall.Access(s.config.WG.WireGuardConfig, syscall.O_RDWR); err != nil {
-		return err
-	}
-
-	device := s.users.GetDevice()
-	cfg, err := device.GetDeviceConfigFile(s.users.GetActiveUsers())
-	if err != nil {
-		return err
-	}
-	if err := ioutil.WriteFile(s.config.WG.WireGuardConfig, cfg, 0644); err != nil {
-		return err
-	}
-	return nil
-}

internal/server/ldapsync.go

@@ -1,34 +1,162 @@
 package server
 
 import (
+	"strings"
 	"time"
 
 	"github.com/h44z/wg-portal/internal/ldap"
-	log "github.com/sirupsen/logrus"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/sirupsen/logrus"
+	"gorm.io/gorm"
 )
 
-// SyncLdapAttributesWithWireGuard starts to synchronize the "disabled" attribute from ldap.
-// Users will be automatically disabled once they are disabled in ldap.
-// This method is blocking.
-func (s *Server) SyncLdapAttributesWithWireGuard() error {
-	allUsers := s.users.GetAllUsers()
-	for i := range allUsers {
-		user := allUsers[i]
-		if user.LdapUser == nil {
-			continue // skip non ldap users
+func (s *Server) SyncLdapWithUserDatabase() {
+	logrus.Info("starting ldap user synchronization...")
+	running := true
+	for running {
+		// Select blocks until one of the cases happens
+		select {
+		case <-time.After(1 * time.Minute):
+			// Sleep for 1 minute
+		case <-s.ctx.Done():
+			logrus.Trace("ldap-sync shutting down (context ended)...")
+			running = false
+			continue
 		}
 
-		if user.DeactivatedAt != nil {
-			continue // skip already disabled interfaces
+		// Main work here
+		logrus.Trace("syncing ldap users to database...")
+		ldapUsers, err := ldap.FindAllUsers(&s.config.LDAP)
+		if err != nil {
+			logrus.Errorf("failed to fetch users from ldap: %v", err)
+			continue
 		}
 
-		if ldap.IsLdapUserDisabled(allUsers[i].LdapUser.Attributes["userAccountControl"]) {
+		// Update existing LDAP users
+		s.updateLdapUsers(ldapUsers)
+
+		// Disable missing LDAP users
+		s.disableMissingLdapUsers(ldapUsers)
+	}
+	logrus.Info("ldap user synchronization stopped")
+}
+
+func (s Server) userChangedInLdap(user *users.User, ldapData *ldap.RawLdapData) bool {
+	if user.Firstname != ldapData.Attributes[s.config.LDAP.FirstNameAttribute] {
+		return true
+	}
+	if user.Lastname != ldapData.Attributes[s.config.LDAP.LastNameAttribute] {
+		return true
+	}
+	if user.Email != strings.ToLower(ldapData.Attributes[s.config.LDAP.EmailAttribute]) {
+		return true
+	}
+	if user.Phone != ldapData.Attributes[s.config.LDAP.PhoneAttribute] {
+		return true
+	}
+	if user.Source != users.UserSourceLdap {
+		return true
+	}
+
+	if user.DeletedAt.Valid {
+		return true
+	}
+
+	ldapAdmin := false
+	for _, group := range ldapData.RawAttributes[s.config.LDAP.GroupMemberAttribute] {
+		if string(group) == s.config.LDAP.AdminLdapGroup {
+			ldapAdmin = true
+			break
+		}
+	}
+	if user.IsAdmin != ldapAdmin {
+		return true
+	}
+
+	return false
+}
+
+func (s *Server) disableMissingLdapUsers(ldapUsers []ldap.RawLdapData) {
+	// Disable missing LDAP users
+	activeUsers := s.users.GetUsers()
+	for i := range activeUsers {
+		if activeUsers[i].Source != users.UserSourceLdap {
+			continue
+		}
+
+		existsInLDAP := false
+		for j := range ldapUsers {
+			if activeUsers[i].Email == strings.ToLower(ldapUsers[j].Attributes[s.config.LDAP.EmailAttribute]) {
+				existsInLDAP = true
+				break
+			}
+		}
+
+		if existsInLDAP {
+			continue
+		}
+
+		// disable all peers for the given user
+		for _, peer := range s.peers.GetPeersByMail(activeUsers[i].Email) {
 			now := time.Now()
-			user.DeactivatedAt = &now
-			if err := s.UpdateUser(user, now); err != nil {
-				log.Errorf("Failed to disable user %s: %v", user.Email, err)
+			peer.DeactivatedAt = &now
+			if err := s.UpdatePeer(peer, now); err != nil {
+				logrus.Errorf("failed to update deactivated peer %s: %v", peer.PublicKey, err)
+			}
+		}
+
+		if err := s.users.DeleteUser(&activeUsers[i]); err != nil {
+			logrus.Errorf("failed to delete deactivated user %s in database: %v", activeUsers[i].Email, err)
+		}
+	}
+}
+
+func (s *Server) updateLdapUsers(ldapUsers []ldap.RawLdapData) {
+	for i := range ldapUsers {
+		if ldapUsers[i].Attributes[s.config.LDAP.EmailAttribute] == "" {
+			logrus.Tracef("skipping sync of %s, empty email attribute", ldapUsers[i].DN)
+			continue
+		}
+
+		user, err := s.users.GetOrCreateUserUnscoped(ldapUsers[i].Attributes[s.config.LDAP.EmailAttribute])
+		if err != nil {
+			logrus.Errorf("failed to get/create user %s in database: %v", ldapUsers[i].Attributes[s.config.LDAP.EmailAttribute], err)
+		}
+
+		// re-enable LDAP user if the user was disabled
+		if user.DeletedAt.Valid {
+			// enable all peers for the given user
+			for _, peer := range s.peers.GetPeersByMail(user.Email) {
+				now := time.Now()
+				peer.DeactivatedAt = nil
+				if err = s.UpdatePeer(peer, now); err != nil {
+					logrus.Errorf("failed to update activated peer %s: %v", peer.PublicKey, err)
+				}
+			}
+		}
+
+		// Sync attributes from ldap
+		if s.userChangedInLdap(user, &ldapUsers[i]) {
+			logrus.Debugf("updating ldap user %s", user.Email)
+			user.Firstname = ldapUsers[i].Attributes[s.config.LDAP.FirstNameAttribute]
+			user.Lastname = ldapUsers[i].Attributes[s.config.LDAP.LastNameAttribute]
+			user.Email = ldapUsers[i].Attributes[s.config.LDAP.EmailAttribute]
+			user.Phone = ldapUsers[i].Attributes[s.config.LDAP.PhoneAttribute]
+			user.IsAdmin = false
+			user.Source = users.UserSourceLdap
+			user.DeletedAt = gorm.DeletedAt{} // Not deleted
+
+			for _, group := range ldapUsers[i].RawAttributes[s.config.LDAP.GroupMemberAttribute] {
+				if string(group) == s.config.LDAP.AdminLdapGroup {
+					user.IsAdmin = true
+					break
+				}
+			}
+
+			if err = s.users.UpdateUser(user); err != nil {
+				logrus.Errorf("failed to update ldap user %s in database: %v", user.Email, err)
+				continue
 			}
 		}
 	}
-	return nil
 }

internal/server/routes.go

@@ -2,27 +2,52 @@ package server
 
 import (
 	"net/http"
+	"strings"
 
 	"github.com/gin-gonic/gin"
+	wgportal "github.com/h44z/wg-portal"
+	_ "github.com/h44z/wg-portal/internal/server/docs" // docs is generated by Swag CLI, you have to import it.
+	ginSwagger "github.com/swaggo/gin-swagger"
+	"github.com/swaggo/gin-swagger/swaggerFiles"
+	csrf "github.com/utrack/gin-csrf"
 )
 
 func SetupRoutes(s *Server) {
+	csrfMiddleware := csrf.Middleware(csrf.Options{
+		Secret: s.config.Core.SessionSecret,
+		ErrorFunc: func(c *gin.Context) {
+			c.String(400, "CSRF token mismatch")
+			c.Abort()
+		},
+	})
+
 	// Startpage
 	s.server.GET("/", s.GetIndex)
+	s.server.GET("/favicon.ico", func(c *gin.Context) {
+		file, _ := wgportal.Statics.ReadFile("assets/img/favicon.ico")
+		c.Data(
+			http.StatusOK,
+			"image/x-icon",
+			file,
+		)
+	})
 
 	// Auth routes
 	auth := s.server.Group("/auth")
+	auth.Use(csrfMiddleware)
 	auth.GET("/login", s.GetLogin)
 	auth.POST("/login", s.PostLogin)
 	auth.GET("/logout", s.GetLogout)
 
 	// Admin routes
 	admin := s.server.Group("/admin")
-	admin.Use(s.RequireAuthentication(s.config.AdminLdapGroup))
+	admin.Use(csrfMiddleware)
+	admin.Use(s.RequireAuthentication("admin"))
 	admin.GET("/", s.GetAdminIndex)
 	admin.GET("/device/edit", s.GetAdminEditInterface)
 	admin.POST("/device/edit", s.PostAdminEditInterface)
 	admin.GET("/device/download", s.GetInterfaceConfig)
+	admin.GET("/device/write", s.GetSaveConfig)
 	admin.GET("/device/applyglobals", s.GetApplyGlobalConfig)
 	admin.GET("/peer/edit", s.GetAdminEditPeer)
 	admin.POST("/peer/edit", s.PostAdminEditPeer)
@@ -34,8 +59,15 @@ func SetupRoutes(s *Server) {
 	admin.GET("/peer/download", s.GetPeerConfig)
 	admin.GET("/peer/email", s.GetPeerConfigMail)
 
+	admin.GET("/users/", s.GetAdminUsersIndex)
+	admin.GET("/users/create", s.GetAdminUsersCreate)
+	admin.POST("/users/create", s.PostAdminUsersCreate)
+	admin.GET("/users/edit", s.GetAdminUsersEdit)
+	admin.POST("/users/edit", s.PostAdminUsersEdit)
+
 	// User routes
 	user := s.server.Group("/user")
+	user.Use(csrfMiddleware)
 	user.Use(s.RequireAuthentication("")) // empty scope = all logged in users
 	user.GET("/qrcode", s.GetPeerQRCode)
 	user.GET("/profile", s.GetUserIndex)
@@ -44,9 +76,47 @@ func SetupRoutes(s *Server) {
 	user.GET("/status", s.GetPeerStatus)
 }
 
+func SetupApiRoutes(s *Server) {
+	api := ApiServer{s: s}
+
+	// Admin authenticated routes
+	apiV1Backend := s.server.Group("/api/v1/backend")
+	apiV1Backend.Use(s.RequireApiAuthentication("admin"))
+
+	apiV1Backend.GET("/users", api.GetUsers)
+	apiV1Backend.POST("/users", api.PostUser)
+	apiV1Backend.GET("/user", api.GetUser)
+	apiV1Backend.PUT("/user", api.PutUser)
+	apiV1Backend.PATCH("/user", api.PatchUser)
+	apiV1Backend.DELETE("/user", api.DeleteUser)
+
+	apiV1Backend.GET("/peers", api.GetPeers)
+	apiV1Backend.POST("/peers", api.PostPeer)
+	apiV1Backend.GET("/peer", api.GetPeer)
+	apiV1Backend.PUT("/peer", api.PutPeer)
+	apiV1Backend.PATCH("/peer", api.PatchPeer)
+	apiV1Backend.DELETE("/peer", api.DeletePeer)
+
+	apiV1Backend.GET("/devices", api.GetDevices)
+	apiV1Backend.GET("/device", api.GetDevice)
+	apiV1Backend.PUT("/device", api.PutDevice)
+	apiV1Backend.PATCH("/device", api.PatchDevice)
+
+	// Simple authenticated routes
+	apiV1Deployment := s.server.Group("/api/v1/provisioning")
+	apiV1Deployment.Use(s.RequireApiAuthentication(""))
+
+	apiV1Deployment.GET("/peers", api.GetPeerDeploymentInformation)
+	apiV1Deployment.GET("/peer", api.GetPeerDeploymentConfig)
+	apiV1Deployment.POST("/peers", api.PostPeerDeploymentConfig)
+
+	// Swagger doc/ui
+	s.server.GET("/swagger/*any", ginSwagger.WrapHandler(swaggerFiles.Handler))
+}
+
 func (s *Server) RequireAuthentication(scope string) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		session := s.getSessionData(c)
+		session := GetSessionData(c)
 
 		if !session.LoggedIn {
 			// Abort the request with the appropriate error code
@@ -55,8 +125,15 @@ func (s *Server) RequireAuthentication(scope string) gin.HandlerFunc {
 			return
 		}
 
-		if scope != "" && !session.IsAdmin && // admins always have access
-			!s.ldapUsers.IsInGroup(session.UserName, scope) {
+		if scope == "admin" && !session.IsAdmin {
+			// Abort the request with the appropriate error code
+			c.Abort()
+			s.GetHandleError(c, http.StatusUnauthorized, "unauthorized", "not enough permissions")
+			return
+		}
+
+		// default case if some random scope was set...
+		if scope != "" && !session.IsAdmin {
 			// Abort the request with the appropriate error code
 			c.Abort()
 			s.GetHandleError(c, http.StatusUnauthorized, "unauthorized", "not enough permissions")
@@ -67,3 +144,55 @@ func (s *Server) RequireAuthentication(scope string) gin.HandlerFunc {
 		c.Next()
 	}
 }
+
+func (s *Server) RequireApiAuthentication(scope string) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		username, password, hasAuth := c.Request.BasicAuth()
+		if !hasAuth {
+			c.Abort()
+			c.JSON(http.StatusUnauthorized, ApiError{Message: "unauthorized"})
+			return
+		}
+
+		// Validate form input
+		if strings.Trim(username, " ") == "" || strings.Trim(password, " ") == "" {
+			c.Abort()
+			c.JSON(http.StatusUnauthorized, ApiError{Message: "unauthorized"})
+			return
+		}
+
+		// Check all available auth backends
+		user, err := s.checkAuthentication(username, password)
+		if err != nil {
+			c.Abort()
+			c.JSON(http.StatusInternalServerError, ApiError{Message: "login error"})
+			return
+		}
+
+		// Check if user is authenticated
+		if user == nil {
+			c.Abort()
+			c.JSON(http.StatusUnauthorized, ApiError{Message: "unauthorized"})
+			return
+		}
+
+		// Check admin scope
+		if scope == "admin" && !user.IsAdmin {
+			// Abort the request with the appropriate error code
+			c.Abort()
+			c.JSON(http.StatusForbidden, ApiError{Message: "unauthorized"})
+			return
+		}
+
+		// default case if some random scope was set...
+		if scope != "" && !user.IsAdmin {
+			// Abort the request with the appropriate error code
+			c.Abort()
+			c.JSON(http.StatusForbidden, ApiError{Message: "unauthorized"})
+			return
+		}
+
+		// Continue down the chain to handler etc
+		c.Next()
+	}
+}

internal/server/server.go

@@ -0,0 +1,344 @@
+package server
+
+import (
+	"context"
+	"encoding/gob"
+	"html/template"
+	"io/fs"
+	"io/ioutil"
+	"math/rand"
+	"net/http"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/gin-contrib/sessions"
+	"github.com/gin-contrib/sessions/memstore"
+	"github.com/gin-gonic/gin"
+	wgportal "github.com/h44z/wg-portal"
+	ldapprovider "github.com/h44z/wg-portal/internal/authentication/providers/ldap"
+	passwordprovider "github.com/h44z/wg-portal/internal/authentication/providers/password"
+	"github.com/h44z/wg-portal/internal/common"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/h44z/wg-portal/internal/wireguard"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	ginlogrus "github.com/toorop/gin-logrus"
+	"gorm.io/gorm"
+)
+
+const SessionIdentifier = "wgPortalSession"
+
+func init() {
+	gob.Register(SessionData{})
+	gob.Register(FlashData{})
+	gob.Register(wireguard.Peer{})
+	gob.Register(wireguard.Device{})
+	gob.Register(LdapCreateForm{})
+	gob.Register(users.User{})
+}
+
+type SessionData struct {
+	LoggedIn   bool
+	IsAdmin    bool
+	Firstname  string
+	Lastname   string
+	Email      string
+	DeviceName string
+
+	SortedBy      map[string]string
+	SortDirection map[string]string
+	Search        map[string]string
+
+	AlertData string
+	AlertType string
+	FormData  interface{}
+}
+
+type FlashData struct {
+	HasAlert bool
+	Message  string
+	Type     string
+}
+
+type StaticData struct {
+	WebsiteTitle string
+	WebsiteLogo  string
+	CompanyName  string
+	Year         int
+	Version      string
+}
+
+type Server struct {
+	ctx     context.Context
+	config  *Config
+	server  *gin.Engine
+	mailTpl *template.Template
+	auth    *AuthManager
+
+	db    *gorm.DB
+	users *users.Manager
+	wg    *wireguard.Manager
+	peers *wireguard.PeerManager
+}
+
+func (s *Server) Setup(ctx context.Context) error {
+	var err error
+
+	dir := s.getExecutableDirectory()
+	rDir, _ := filepath.Abs(filepath.Dir(os.Args[0]))
+	logrus.Infof("real working directory: %s", rDir)
+	logrus.Infof("current working directory: %s", dir)
+
+	// Init rand
+	rand.Seed(time.Now().UnixNano())
+
+	s.config = NewConfig()
+	s.ctx = ctx
+
+	// Setup database connection
+	s.db, err = common.GetDatabaseForConfig(&s.config.Database)
+	if err != nil {
+		return errors.WithMessage(err, "database setup failed")
+	}
+	err = common.MigrateDatabase(s.db, DatabaseVersion)
+	if err != nil {
+		return errors.WithMessage(err, "database migration failed")
+	}
+
+	// Setup http server
+	gin.SetMode(gin.DebugMode)
+	gin.DefaultWriter = ioutil.Discard
+	s.server = gin.New()
+	if logrus.GetLevel() == logrus.TraceLevel {
+		s.server.Use(ginlogrus.Logger(logrus.StandardLogger()))
+	}
+	s.server.Use(gin.Recovery())
+	s.server.Use(sessions.Sessions("authsession", memstore.NewStore([]byte(s.config.Core.SessionSecret))))
+	s.server.SetFuncMap(template.FuncMap{
+		"formatBytes": common.ByteCountSI,
+		"urlEncode":   url.QueryEscape,
+		"startsWith":  strings.HasPrefix,
+		"userForEmail": func(users []users.User, email string) *users.User {
+			for i := range users {
+				if users[i].Email == email {
+					return &users[i]
+				}
+			}
+			return nil
+		},
+	})
+
+	// Setup templates
+	templates := template.Must(template.New("").Funcs(s.server.FuncMap).ParseFS(wgportal.Templates, "assets/tpl/*.html"))
+	s.server.SetHTMLTemplate(templates)
+
+	// Serve static files
+	s.server.StaticFS("/css", http.FS(fsMust(fs.Sub(wgportal.Statics, "assets/css"))))
+	s.server.StaticFS("/js", http.FS(fsMust(fs.Sub(wgportal.Statics, "assets/js"))))
+	s.server.StaticFS("/img", http.FS(fsMust(fs.Sub(wgportal.Statics, "assets/img"))))
+	s.server.StaticFS("/fonts", http.FS(fsMust(fs.Sub(wgportal.Statics, "assets/fonts"))))
+
+	// Setup all routes
+	SetupRoutes(s)
+	SetupApiRoutes(s)
+
+	// Setup user database (also needed for database authentication)
+	s.users, err = users.NewManager(s.db)
+	if err != nil {
+		return errors.WithMessage(err, "user-manager initialization failed")
+	}
+
+	// Setup auth manager
+	s.auth = NewAuthManager(s)
+	pwProvider, err := passwordprovider.New(&s.config.Database)
+	if err != nil {
+		return errors.WithMessage(err, "password provider initialization failed")
+	}
+	if err = pwProvider.InitializeAdmin(s.config.Core.AdminUser, s.config.Core.AdminPassword); err != nil {
+		return errors.WithMessage(err, "admin initialization failed")
+	}
+	s.auth.RegisterProvider(pwProvider)
+
+	if s.config.Core.LdapEnabled {
+		ldapProvider, err := ldapprovider.New(&s.config.LDAP)
+		if err != nil {
+			s.config.Core.LdapEnabled = false
+			logrus.Warnf("failed to setup LDAP connection, LDAP features disabled")
+		}
+		s.auth.RegisterProviderWithoutError(ldapProvider, err)
+	}
+
+	// Setup WireGuard stuff
+	s.wg = &wireguard.Manager{Cfg: &s.config.WG}
+	if err = s.wg.Init(); err != nil {
+		return errors.WithMessage(err, "unable to initialize WireGuard manager")
+	}
+
+	// Setup peer manager
+	if s.peers, err = wireguard.NewPeerManager(s.db, s.wg); err != nil {
+		return errors.WithMessage(err, "unable to setup peer manager")
+	}
+
+	for _, deviceName := range s.wg.Cfg.DeviceNames {
+		if err = s.RestoreWireGuardInterface(deviceName); err != nil {
+			return errors.WithMessagef(err, "unable to restore WireGuard state for %s", deviceName)
+		}
+	}
+
+	// Setup mail template
+	s.mailTpl, err = template.New("email.html").ParseFS(wgportal.Templates, "assets/tpl/email.html")
+	if err != nil {
+		return errors.Wrap(err, "unable to pare mail template")
+	}
+
+	logrus.Infof("setup of service completed!")
+	return nil
+}
+
+func (s *Server) Run() {
+	logrus.Infof("starting web service on %s", s.config.Core.ListeningAddress)
+
+	// Start ldap sync
+	if s.config.Core.LdapEnabled {
+		go s.SyncLdapWithUserDatabase()
+	}
+
+	// Run web service
+	srv := &http.Server{
+		Addr:    s.config.Core.ListeningAddress,
+		Handler: s.server,
+	}
+
+	go func() {
+		if err := srv.ListenAndServe(); err != nil {
+			logrus.Debugf("web service on %s exited: %v", s.config.Core.ListeningAddress, err)
+		}
+	}()
+
+	<-s.ctx.Done()
+
+	logrus.Debug("web service shutting down...")
+
+	shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	_ = srv.Shutdown(shutdownCtx)
+
+}
+
+func (s *Server) getExecutableDirectory() string {
+	dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
+	if err != nil {
+		logrus.Errorf("failed to get executable directory: %v", err)
+	}
+
+	if _, err := os.Stat(filepath.Join(dir, "assets")); os.IsNotExist(err) {
+		return "." // assets directory not found -> we are developing in goland =)
+	}
+
+	return dir
+}
+
+func (s *Server) getStaticData() StaticData {
+	return StaticData{
+		WebsiteTitle: s.config.Core.Title,
+		WebsiteLogo:  "/img/header-logo.png",
+		CompanyName:  s.config.Core.CompanyName,
+		Year:         time.Now().Year(),
+		Version:      Version,
+	}
+}
+
+func GetSessionData(c *gin.Context) SessionData {
+	session := sessions.Default(c)
+	rawSessionData := session.Get(SessionIdentifier)
+
+	var sessionData SessionData
+	if rawSessionData != nil {
+		sessionData = rawSessionData.(SessionData)
+	} else {
+		sessionData = SessionData{
+			Search:        map[string]string{"peers": "", "userpeers": "", "users": ""},
+			SortedBy:      map[string]string{"peers": "handshake", "userpeers": "id", "users": "email"},
+			SortDirection: map[string]string{"peers": "desc", "userpeers": "asc", "users": "asc"},
+			Email:         "",
+			Firstname:     "",
+			Lastname:      "",
+			DeviceName:    "",
+			IsAdmin:       false,
+			LoggedIn:      false,
+		}
+		session.Set(SessionIdentifier, sessionData)
+		if err := session.Save(); err != nil {
+			logrus.Errorf("failed to store session: %v", err)
+		}
+	}
+
+	return sessionData
+}
+
+func GetFlashes(c *gin.Context) []FlashData {
+	session := sessions.Default(c)
+	flashes := session.Flashes()
+	if err := session.Save(); err != nil {
+		logrus.Errorf("failed to store session after setting flash: %v", err)
+	}
+
+	flashData := make([]FlashData, len(flashes))
+	for i := range flashes {
+		flashData[i] = flashes[i].(FlashData)
+	}
+
+	return flashData
+}
+
+func UpdateSessionData(c *gin.Context, data SessionData) error {
+	session := sessions.Default(c)
+	session.Set(SessionIdentifier, data)
+	if err := session.Save(); err != nil {
+		logrus.Errorf("failed to store session: %v", err)
+		return errors.Wrap(err, "failed to store session")
+	}
+	return nil
+}
+
+func DestroySessionData(c *gin.Context) error {
+	session := sessions.Default(c)
+	session.Delete(SessionIdentifier)
+	if err := session.Save(); err != nil {
+		logrus.Errorf("failed to destroy session: %v", err)
+		return errors.Wrap(err, "failed to destroy session")
+	}
+	return nil
+}
+
+func SetFlashMessage(c *gin.Context, message, typ string) {
+	session := sessions.Default(c)
+	session.AddFlash(FlashData{
+		Message: message,
+		Type:    typ,
+	})
+	if err := session.Save(); err != nil {
+		logrus.Errorf("failed to store session after setting flash: %v", err)
+	}
+}
+
+func (s SessionData) GetSortIcon(table, field string) string {
+	if s.SortedBy[table] != field {
+		return "fa-sort"
+	}
+	if s.SortDirection[table] == "asc" {
+		return "fa-sort-alpha-down"
+	} else {
+		return "fa-sort-alpha-up"
+	}
+}
+
+func fsMust(f fs.FS, err error) fs.FS {
+	if err != nil {
+		panic(err)
+	}
+	return f
+}

internal/server/server_helper.go

@@ -0,0 +1,345 @@
+package server
+
+import (
+	"crypto/md5"
+	"fmt"
+	"io/ioutil"
+	"path"
+	"syscall"
+	"time"
+
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/h44z/wg-portal/internal/wireguard"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"golang.org/x/crypto/bcrypt"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+	"gorm.io/gorm"
+)
+
+// PrepareNewPeer initiates a new peer for the given WireGuard device.
+func (s *Server) PrepareNewPeer(device string) (wireguard.Peer, error) {
+	dev := s.peers.GetDevice(device)
+	deviceIPs := dev.GetIPAddresses()
+
+	peer := wireguard.Peer{}
+	peer.IsNew = true
+
+	switch dev.Type {
+	case wireguard.DeviceTypeServer:
+		peerIPs := make([]string, len(deviceIPs))
+		for i := range deviceIPs {
+			freeIP, err := s.peers.GetAvailableIp(device, deviceIPs[i])
+			if err != nil {
+				return wireguard.Peer{}, errors.WithMessage(err, "failed to get available IP addresses")
+			}
+			peerIPs[i] = freeIP
+		}
+		peer.SetIPAddresses(peerIPs...)
+		psk, err := wgtypes.GenerateKey()
+		if err != nil {
+			return wireguard.Peer{}, errors.Wrap(err, "failed to generate key")
+		}
+		key, err := wgtypes.GeneratePrivateKey()
+		if err != nil {
+			return wireguard.Peer{}, errors.Wrap(err, "failed to generate private key")
+		}
+		peer.PresharedKey = psk.String()
+		peer.PrivateKey = key.String()
+		peer.PublicKey = key.PublicKey().String()
+		peer.UID = fmt.Sprintf("u%x", md5.Sum([]byte(peer.PublicKey)))
+		peer.Endpoint = dev.DefaultEndpoint
+		peer.DNSStr = dev.DNSStr
+		peer.PersistentKeepalive = dev.DefaultPersistentKeepalive
+		peer.AllowedIPsStr = dev.DefaultAllowedIPsStr
+		peer.Mtu = dev.Mtu
+		peer.DeviceName = device
+	case wireguard.DeviceTypeClient:
+		peer.UID = "newendpoint"
+	}
+
+	return peer, nil
+}
+
+// CreatePeerByEmail creates a new peer for the given email.
+func (s *Server) CreatePeerByEmail(device, email, identifierSuffix string, disabled bool) error {
+	user := s.users.GetUser(email)
+
+	peer, err := s.PrepareNewPeer(device)
+	if err != nil {
+		return errors.WithMessage(err, "failed to prepare new peer")
+	}
+	peer.Email = email
+	if user != nil {
+		peer.Identifier = fmt.Sprintf("%s %s (%s)", user.Firstname, user.Lastname, identifierSuffix)
+	} else {
+		peer.Identifier = fmt.Sprintf("%s (%s)", email, identifierSuffix)
+	}
+	now := time.Now()
+	if disabled {
+		peer.DeactivatedAt = &now
+	}
+
+	return s.CreatePeer(device, peer)
+}
+
+// CreatePeer creates the new peer in the database. If the peer has no assigned ip addresses, a new one will be assigned
+// automatically. Also, if the private key is empty, a new key-pair will be generated.
+// This function also configures the new peer on the physical WireGuard interface if the peer is not deactivated.
+func (s *Server) CreatePeer(device string, peer wireguard.Peer) error {
+	dev := s.peers.GetDevice(device)
+	deviceIPs := dev.GetIPAddresses()
+	peerIPs := peer.GetIPAddresses()
+
+	peer.AllowedIPsStr = dev.DefaultAllowedIPsStr
+	if len(peerIPs) == 0 && dev.Type == wireguard.DeviceTypeServer {
+		peerIPs = make([]string, len(deviceIPs))
+		for i := range deviceIPs {
+			freeIP, err := s.peers.GetAvailableIp(device, deviceIPs[i])
+			if err != nil {
+				return errors.WithMessage(err, "failed to get available IP addresses")
+			}
+			peerIPs[i] = freeIP
+		}
+		peer.SetIPAddresses(peerIPs...)
+	}
+	if peer.PrivateKey == "" && dev.Type == wireguard.DeviceTypeServer { // if private key is empty create a new one
+		psk, err := wgtypes.GenerateKey()
+		if err != nil {
+			return errors.Wrap(err, "failed to generate key")
+		}
+		key, err := wgtypes.GeneratePrivateKey()
+		if err != nil {
+			return errors.Wrap(err, "failed to generate private key")
+		}
+		peer.PresharedKey = psk.String()
+		peer.PrivateKey = key.String()
+		peer.PublicKey = key.PublicKey().String()
+	}
+	peer.DeviceName = dev.DeviceName
+	peer.UID = fmt.Sprintf("u%x", md5.Sum([]byte(peer.PublicKey)))
+
+	// Create WireGuard interface
+	if peer.DeactivatedAt == nil {
+		if err := s.wg.AddPeer(device, peer.GetConfig(&dev)); err != nil {
+			return errors.WithMessage(err, "failed to add WireGuard peer")
+		}
+	}
+
+	// Create in database
+	if err := s.peers.CreatePeer(peer); err != nil {
+		return errors.WithMessage(err, "failed to create peer")
+	}
+
+	return s.WriteWireGuardConfigFile(device)
+}
+
+// UpdatePeer updates the physical WireGuard interface and the database.
+func (s *Server) UpdatePeer(peer wireguard.Peer, updateTime time.Time) error {
+	currentPeer := s.peers.GetPeerByKey(peer.PublicKey)
+	dev := s.peers.GetDevice(peer.DeviceName)
+
+	// Update WireGuard device
+	var err error
+	switch {
+	case peer.DeactivatedAt != nil && *peer.DeactivatedAt == updateTime:
+		err = s.wg.RemovePeer(peer.DeviceName, peer.PublicKey)
+	case peer.DeactivatedAt == nil && currentPeer.Peer != nil:
+		err = s.wg.UpdatePeer(peer.DeviceName, peer.GetConfig(&dev))
+	case peer.DeactivatedAt == nil && currentPeer.Peer == nil:
+		err = s.wg.AddPeer(peer.DeviceName, peer.GetConfig(&dev))
+	}
+	if err != nil {
+		return errors.WithMessage(err, "failed to update WireGuard peer")
+	}
+
+	peer.UID = fmt.Sprintf("u%x", md5.Sum([]byte(peer.PublicKey)))
+
+	// Update in database
+	if err := s.peers.UpdatePeer(peer); err != nil {
+		return errors.WithMessage(err, "failed to update peer")
+	}
+
+	return s.WriteWireGuardConfigFile(peer.DeviceName)
+}
+
+// DeletePeer removes the peer from the physical WireGuard interface and the database.
+func (s *Server) DeletePeer(peer wireguard.Peer) error {
+	// Delete WireGuard peer
+	if err := s.wg.RemovePeer(peer.DeviceName, peer.PublicKey); err != nil {
+		return errors.WithMessage(err, "failed to remove WireGuard peer")
+	}
+
+	// Delete in database
+	if err := s.peers.DeletePeer(peer); err != nil {
+		return errors.WithMessage(err, "failed to remove peer")
+	}
+
+	return s.WriteWireGuardConfigFile(peer.DeviceName)
+}
+
+// RestoreWireGuardInterface restores the state of the physical WireGuard interface from the database.
+func (s *Server) RestoreWireGuardInterface(device string) error {
+	activePeers := s.peers.GetActivePeers(device)
+	dev := s.peers.GetDevice(device)
+
+	for i := range activePeers {
+		if activePeers[i].Peer == nil {
+			if err := s.wg.AddPeer(device, activePeers[i].GetConfig(&dev)); err != nil {
+				return errors.WithMessage(err, "failed to add WireGuard peer")
+			}
+		}
+	}
+
+	return nil
+}
+
+// WriteWireGuardConfigFile writes the configuration file for the physical WireGuard interface.
+func (s *Server) WriteWireGuardConfigFile(device string) error {
+	if s.config.WG.ConfigDirectoryPath == "" {
+		return nil // writing disabled
+	}
+	if err := syscall.Access(s.config.WG.ConfigDirectoryPath, syscall.O_RDWR); err != nil {
+		return errors.Wrap(err, "failed to check WireGuard config access rights")
+	}
+
+	dev := s.peers.GetDevice(device)
+	cfg, err := dev.GetConfigFile(s.peers.GetActivePeers(device))
+	if err != nil {
+		return errors.WithMessage(err, "failed to get config file")
+	}
+	filePath := path.Join(s.config.WG.ConfigDirectoryPath, dev.DeviceName+".conf")
+	if err := ioutil.WriteFile(filePath, cfg, 0644); err != nil {
+		return errors.Wrap(err, "failed to write WireGuard config file")
+	}
+	return nil
+}
+
+// CreateUser creates the user in the database and optionally adds a default WireGuard peer for the user.
+func (s *Server) CreateUser(user users.User, device string) error {
+	if user.Email == "" {
+		return errors.New("cannot create user with empty email address")
+	}
+
+	// Check if user already exists, if so re-enable
+	if existingUser := s.users.GetUserUnscoped(user.Email); existingUser != nil {
+		user.DeletedAt = gorm.DeletedAt{} // reset deleted flag to enable that user again
+		return s.UpdateUser(user)
+	}
+
+	// Hash user password (if set)
+	if user.Password != "" {
+		hashedPassword, err := bcrypt.GenerateFromPassword([]byte(user.Password), bcrypt.DefaultCost)
+		if err != nil {
+			return errors.Wrap(err, "unable to hash password")
+		}
+		user.Password = users.PrivateString(hashedPassword)
+	}
+
+	// Create user in database
+	if err := s.users.CreateUser(&user); err != nil {
+		return errors.WithMessage(err, "failed to create user in manager")
+	}
+
+	// Check if user already has a peer setup, if not, create one
+	return s.CreateUserDefaultPeer(user.Email, device)
+}
+
+// UpdateUser updates the user in the database. If the user is marked as deleted, it will get remove from the database.
+// Also, if the user is re-enabled, all it's linked WireGuard peers will be activated again.
+func (s *Server) UpdateUser(user users.User) error {
+	if user.DeletedAt.Valid {
+		return s.DeleteUser(user)
+	}
+
+	currentUser := s.users.GetUserUnscoped(user.Email)
+
+	// Hash user password (if set)
+	if user.Password != "" {
+		hashedPassword, err := bcrypt.GenerateFromPassword([]byte(user.Password), bcrypt.DefaultCost)
+		if err != nil {
+			return errors.Wrap(err, "unable to hash password")
+		}
+		user.Password = users.PrivateString(hashedPassword)
+	} else {
+		user.Password = currentUser.Password // keep current password
+	}
+
+	// Update in database
+	if err := s.users.UpdateUser(&user); err != nil {
+		return errors.WithMessage(err, "failed to update user in manager")
+	}
+
+	// If user was deleted (disabled), reactivate it's peers
+	if currentUser.DeletedAt.Valid {
+		for _, peer := range s.peers.GetPeersByMail(user.Email) {
+			now := time.Now()
+			peer.DeactivatedAt = nil
+			if err := s.UpdatePeer(peer, now); err != nil {
+				logrus.Errorf("failed to update (re)activated peer %s for %s: %v", peer.PublicKey, user.Email, err)
+			}
+		}
+	}
+
+	return nil
+}
+
+// DeleteUser removes the user from the database.
+// Also, if the user has linked WireGuard peers, they will be deactivated.
+func (s *Server) DeleteUser(user users.User) error {
+	currentUser := s.users.GetUserUnscoped(user.Email)
+
+	// Update in database
+	if err := s.users.DeleteUser(&user); err != nil {
+		return errors.WithMessage(err, "failed to delete user in manager")
+	}
+
+	// If user was active, disable it's peers
+	if !currentUser.DeletedAt.Valid {
+		for _, peer := range s.peers.GetPeersByMail(user.Email) {
+			now := time.Now()
+			peer.DeactivatedAt = &now
+			if err := s.UpdatePeer(peer, now); err != nil {
+				logrus.Errorf("failed to update deactivated peer %s for %s: %v", peer.PublicKey, user.Email, err)
+			}
+		}
+	}
+
+	return nil
+}
+
+func (s *Server) CreateUserDefaultPeer(email, device string) error {
+	// Check if user is active, if not, quit
+	var existingUser *users.User
+	if existingUser = s.users.GetUser(email); existingUser == nil {
+		return nil
+	}
+
+	// Check if user already has a peer setup, if not, create one
+	if s.config.Core.CreateDefaultPeer {
+		peers := s.peers.GetPeersByMail(email)
+		if len(peers) == 0 { // Create default vpn peer
+			if err := s.CreatePeer(device, wireguard.Peer{
+				Identifier: existingUser.Firstname + " " + existingUser.Lastname + " (Default)",
+				Email:      existingUser.Email,
+				CreatedBy:  existingUser.Email,
+				UpdatedBy:  existingUser.Email,
+			}); err != nil {
+				return errors.WithMessagef(err, "failed to automatically create vpn peer for %s", email)
+			}
+		}
+	}
+
+	return nil
+}
+
+func (s *Server) GetDeviceNames() map[string]string {
+	devNames := make(map[string]string, len(s.wg.Cfg.DeviceNames))
+
+	for _, devName := range s.wg.Cfg.DeviceNames {
+		dev := s.peers.GetDevice(devName)
+		devNames[devName] = dev.DisplayName
+	}
+
+	return devNames
+}

internal/server/usermanager.go

@@ -1,746 +0,0 @@
-package server
-
-import (
-	"bytes"
-	"crypto/md5"
-	"errors"
-	"fmt"
-	"net"
-	"os"
-	"path/filepath"
-	"reflect"
-	"regexp"
-	"sort"
-	"strings"
-	"text/template"
-	"time"
-
-	"github.com/gin-gonic/gin/binding"
-
-	"github.com/go-playground/validator/v10"
-
-	"github.com/h44z/wg-portal/internal/wireguard"
-
-	"github.com/h44z/wg-portal/internal/common"
-
-	"github.com/h44z/wg-portal/internal/ldap"
-	log "github.com/sirupsen/logrus"
-	"github.com/skip2/go-qrcode"
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-	"gorm.io/driver/sqlite"
-	"gorm.io/gorm"
-)
-
-//
-// CUSTOM VALIDATORS ----------------------------------------------------------------------------
-//
-var cidrList validator.Func = func(fl validator.FieldLevel) bool {
-	cidrListStr := fl.Field().String()
-
-	cidrList := common.ParseStringList(cidrListStr)
-	for i := range cidrList {
-		_, _, err := net.ParseCIDR(cidrList[i])
-		if err != nil {
-			return false
-		}
-	}
-	return true
-}
-
-var ipList validator.Func = func(fl validator.FieldLevel) bool {
-	ipListStr := fl.Field().String()
-
-	ipList := common.ParseStringList(ipListStr)
-	for i := range ipList {
-		ip := net.ParseIP(ipList[i])
-		if ip == nil {
-			return false
-		}
-	}
-	return true
-}
-
-func init() {
-	if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
-		v.RegisterValidation("cidrlist", cidrList)
-		v.RegisterValidation("iplist", ipList)
-	}
-}
-
-//
-//  USER ----------------------------------------------------------------------------------------
-//
-
-type User struct {
-	Peer     *wgtypes.Peer              `gorm:"-"`
-	LdapUser *ldap.UserCacheHolderEntry `gorm:"-"` // optional, it is still possible to have users without ldap
-	Config   string                     `gorm:"-"`
-
-	UID               string `form:"uid" binding:"alphanum"` // uid for html identification
-	IsOnline          bool   `gorm:"-"`
-	IsNew             bool   `gorm:"-"`
-	Identifier        string `form:"identifier" binding:"required,lt=64"` // Identifier AND Email make a WireGuard peer unique
-	Email             string `gorm:"index" form:"mail" binding:"required,email"`
-	LastHandshake     string `gorm:"-"`
-	LastHandshakeTime string `gorm:"-"`
-
-	IgnorePersistentKeepalive bool     `form:"ignorekeepalive"`
-	PresharedKey              string   `form:"presharedkey" binding:"omitempty,base64"`
-	AllowedIPsStr             string   `form:"allowedip" binding:"cidrlist"`
-	IPsStr                    string   `form:"ip" binding:"cidrlist"`
-	AllowedIPs                []string `gorm:"-"` // IPs that are used in the client config file
-	IPs                       []string `gorm:"-"` // The IPs of the client
-	PrivateKey                string   `form:"privkey" binding:"omitempty,base64"`
-	PublicKey                 string   `gorm:"primaryKey" form:"pubkey" binding:"required,base64"`
-
-	DeactivatedAt *time.Time
-	CreatedBy     string
-	UpdatedBy     string
-	CreatedAt     time.Time
-	UpdatedAt     time.Time
-}
-
-func (u User) GetClientConfigFile(device Device) ([]byte, error) {
-	tpl, err := template.New("client").Funcs(template.FuncMap{"StringsJoin": strings.Join}).Parse(wireguard.ClientCfgTpl)
-	if err != nil {
-		return nil, err
-	}
-
-	var tplBuff bytes.Buffer
-
-	err = tpl.Execute(&tplBuff, struct {
-		Client User
-		Server Device
-	}{
-		Client: u,
-		Server: device,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	return tplBuff.Bytes(), nil
-}
-
-func (u User) GetPeerConfig() wgtypes.PeerConfig {
-	publicKey, _ := wgtypes.ParseKey(u.PublicKey)
-	var presharedKey *wgtypes.Key
-	if u.PresharedKey != "" {
-		presharedKeyTmp, _ := wgtypes.ParseKey(u.PresharedKey)
-		presharedKey = &presharedKeyTmp
-	}
-
-	cfg := wgtypes.PeerConfig{
-		PublicKey:                   publicKey,
-		Remove:                      false,
-		UpdateOnly:                  false,
-		PresharedKey:                presharedKey,
-		Endpoint:                    nil,
-		PersistentKeepaliveInterval: nil,
-		ReplaceAllowedIPs:           true,
-		AllowedIPs:                  make([]net.IPNet, len(u.IPs)),
-	}
-	for i, ip := range u.IPs {
-		_, ipNet, err := net.ParseCIDR(ip)
-		if err == nil {
-			cfg.AllowedIPs[i] = *ipNet
-		}
-	}
-
-	return cfg
-}
-
-func (u User) GetQRCode() ([]byte, error) {
-	png, err := qrcode.Encode(u.Config, qrcode.Medium, 250)
-	if err != nil {
-		log.WithFields(log.Fields{
-			"err": err,
-		}).Error("failed to create qrcode")
-		return nil, err
-	}
-	return png, nil
-}
-
-func (u User) IsValid() bool {
-	if u.PublicKey == "" {
-		return false
-	}
-
-	return true
-}
-
-func (u User) ToMap() map[string]string {
-	out := make(map[string]string)
-
-	v := reflect.ValueOf(u)
-	if v.Kind() == reflect.Ptr {
-		v = v.Elem()
-	}
-
-	typ := v.Type()
-	for i := 0; i < v.NumField(); i++ {
-		// gets us a StructField
-		fi := typ.Field(i)
-		if tagv := fi.Tag.Get("form"); tagv != "" {
-			// set key of map to value in struct field
-			out[tagv] = v.Field(i).String()
-		}
-	}
-	return out
-}
-
-func (u User) GetConfigFileName() string {
-	reg := regexp.MustCompile("[^a-zA-Z0-9_-]+")
-	return reg.ReplaceAllString(strings.ReplaceAll(u.Identifier, " ", "-"), "") + ".conf"
-}
-
-//
-//  DEVICE --------------------------------------------------------------------------------------
-//
-
-type Device struct {
-	Interface *wgtypes.Device `gorm:"-"`
-
-	DeviceName          string   `form:"device" gorm:"primaryKey" binding:"required,alphanum"`
-	PrivateKey          string   `form:"privkey" binding:"required,base64"`
-	PublicKey           string   `form:"pubkey" binding:"required,base64"`
-	PersistentKeepalive int      `form:"keepalive" binding:"gte=0"`
-	ListenPort          int      `form:"port" binding:"required,gt=0"`
-	Mtu                 int      `form:"mtu" binding:"gte=0,lte=1500"`
-	Endpoint            string   `form:"endpoint" binding:"required,hostname_port"`
-	AllowedIPsStr       string   `form:"allowedip" binding:"cidrlist"`
-	IPsStr              string   `form:"ip" binding:"required,cidrlist"`
-	AllowedIPs          []string `gorm:"-"` // IPs that are used in the client config file
-	IPs                 []string `gorm:"-"` // The IPs of the client
-	DNSStr              string   `form:"dns" binding:"iplist"`
-	DNS                 []string `gorm:"-"` // The DNS servers of the client
-	PreUp               string   `form:"preup"`
-	PostUp              string   `form:"postup"`
-	PreDown             string   `form:"predown"`
-	PostDown            string   `form:"postdown"`
-	CreatedAt           time.Time
-	UpdatedAt           time.Time
-}
-
-func (d Device) IsValid() bool {
-	if d.PublicKey == "" {
-		return false
-	}
-	if len(d.IPs) == 0 {
-		return false
-	}
-	if d.Endpoint == "" {
-		return false
-	}
-
-	return true
-}
-
-func (d Device) GetDeviceConfig() wgtypes.Config {
-	var privateKey *wgtypes.Key
-	if d.PrivateKey != "" {
-		pKey, _ := wgtypes.ParseKey(d.PrivateKey)
-		privateKey = &pKey
-	}
-
-	cfg := wgtypes.Config{
-		PrivateKey: privateKey,
-		ListenPort: &d.ListenPort,
-	}
-
-	return cfg
-}
-
-func (d Device) GetDeviceConfigFile(clients []User) ([]byte, error) {
-	tpl, err := template.New("server").Funcs(template.FuncMap{"StringsJoin": strings.Join}).Parse(wireguard.DeviceCfgTpl)
-	if err != nil {
-		return nil, err
-	}
-
-	var tplBuff bytes.Buffer
-
-	err = tpl.Execute(&tplBuff, struct {
-		Clients []User
-		Server  Device
-	}{
-		Clients: clients,
-		Server:  d,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	return tplBuff.Bytes(), nil
-}
-
-//
-//  USER-MANAGER --------------------------------------------------------------------------------
-//
-
-type UserManager struct {
-	db        *gorm.DB
-	wg        *wireguard.Manager
-	ldapUsers *ldap.SynchronizedUserCacheHolder
-}
-
-func NewUserManager(dbPath string, wg *wireguard.Manager, ldapUsers *ldap.SynchronizedUserCacheHolder) *UserManager {
-
-	um := &UserManager{wg: wg, ldapUsers: ldapUsers}
-	var err error
-	if _, err = os.Stat(filepath.Dir(dbPath)); os.IsNotExist(err) {
-		if err = os.MkdirAll(filepath.Dir(dbPath), 0700); err != nil {
-			log.Errorf("failed to create database directory (%s): %v", filepath.Dir(dbPath), err)
-			return nil
-		}
-	}
-	um.db, err = gorm.Open(sqlite.Open(dbPath), &gorm.Config{})
-	if err != nil {
-		log.Errorf("failed to open sqlite database (%s): %v", dbPath, err)
-		return nil
-	}
-
-	err = um.db.AutoMigrate(&User{}, &Device{})
-	if err != nil {
-		log.Errorf("failed to migrate sqlite database: %v", err)
-		return nil
-	}
-
-	return um
-}
-
-func (u *UserManager) InitFromCurrentInterface() error {
-	peers, err := u.wg.GetPeerList()
-	if err != nil {
-		log.Errorf("failed to init user-manager from peers: %v", err)
-		return err
-	}
-	device, err := u.wg.GetDeviceInfo()
-	if err != nil {
-		log.Errorf("failed to init user-manager from device: %v", err)
-		return err
-	}
-	var ipAddresses []string
-	var mtu int
-	if u.wg.Cfg.ManageIPAddresses {
-		if ipAddresses, err = u.wg.GetIPAddress(); err != nil {
-			log.Errorf("failed to init user-manager from device: %v", err)
-			return err
-		}
-		if mtu, err = u.wg.GetMTU(); err != nil {
-			log.Errorf("failed to init user-manager from device: %v", err)
-			return err
-		}
-	}
-
-	// Check if entries already exist in database, if not create them
-	for _, peer := range peers {
-		if err := u.validateOrCreateUserForPeer(peer); err != nil {
-			return err
-		}
-	}
-	if err := u.validateOrCreateDevice(*device, ipAddresses, mtu); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (u *UserManager) validateOrCreateUserForPeer(peer wgtypes.Peer) error {
-	user := User{}
-	u.db.Where("public_key = ?", peer.PublicKey.String()).FirstOrInit(&user)
-
-	if user.PublicKey == "" { // user not found, create
-		user.UID = fmt.Sprintf("u%x", md5.Sum([]byte(peer.PublicKey.String())))
-		user.PublicKey = peer.PublicKey.String()
-		user.PrivateKey = "" // UNKNOWN
-		if peer.PresharedKey != (wgtypes.Key{}) {
-			user.PresharedKey = peer.PresharedKey.String()
-		}
-		user.Email = "autodetected@example.com"
-		user.Identifier = "Autodetected (" + user.PublicKey[0:8] + ")"
-		user.UpdatedAt = time.Now()
-		user.CreatedAt = time.Now()
-		user.AllowedIPs = make([]string, 0) // UNKNOWN
-		user.IPs = make([]string, len(peer.AllowedIPs))
-		for i, ip := range peer.AllowedIPs {
-			user.IPs[i] = ip.String()
-		}
-		user.AllowedIPsStr = strings.Join(user.AllowedIPs, ", ")
-		user.IPsStr = strings.Join(user.IPs, ", ")
-
-		res := u.db.Create(&user)
-		if res.Error != nil {
-			log.Errorf("failed to create autodetected peer: %v", res.Error)
-			return res.Error
-		}
-	}
-
-	return nil
-}
-
-func (u *UserManager) validateOrCreateDevice(dev wgtypes.Device, ipAddresses []string, mtu int) error {
-	device := Device{}
-	u.db.Where("device_name = ?", dev.Name).FirstOrInit(&device)
-
-	if device.PublicKey == "" { // device not found, create
-		device.PublicKey = dev.PublicKey.String()
-		device.PrivateKey = dev.PrivateKey.String()
-		device.DeviceName = dev.Name
-		device.ListenPort = dev.ListenPort
-		device.Mtu = 0
-		device.PersistentKeepalive = 16 // Default
-		device.IPsStr = strings.Join(ipAddresses, ", ")
-		if mtu == wireguard.WireGuardDefaultMTU {
-			mtu = 0
-		}
-		device.Mtu = mtu
-
-		res := u.db.Create(&device)
-		if res.Error != nil {
-			log.Errorf("failed to create autodetected device: %v", res.Error)
-			return res.Error
-		}
-	}
-
-	return nil
-}
-
-func (u *UserManager) populateUserData(user *User) {
-	user.AllowedIPs = strings.Split(user.AllowedIPsStr, ", ")
-	user.IPs = strings.Split(user.IPsStr, ", ")
-	// Set config file
-	tmpCfg, _ := user.GetClientConfigFile(u.GetDevice())
-	user.Config = string(tmpCfg)
-
-	// set data from WireGuard interface
-	user.Peer, _ = u.wg.GetPeer(user.PublicKey)
-	user.LastHandshake = "never"
-	user.LastHandshakeTime = "Never connected, or user is disabled."
-	if user.Peer != nil {
-		since := time.Since(user.Peer.LastHandshakeTime)
-		sinceSeconds := int(since.Round(time.Second).Seconds())
-		sinceMinutes := int(sinceSeconds / 60)
-		sinceSeconds -= sinceMinutes * 60
-
-		if sinceMinutes > 2*10080 { // 2 weeks
-			user.LastHandshake = "a while ago"
-		} else if sinceMinutes > 10080 { // 1 week
-			user.LastHandshake = "a week ago"
-		} else {
-			user.LastHandshake = fmt.Sprintf("%02dm %02ds", sinceMinutes, sinceSeconds)
-		}
-		user.LastHandshakeTime = user.Peer.LastHandshakeTime.Format(time.UnixDate)
-	}
-	user.IsOnline = false // todo: calculate online status
-
-	// set ldap data
-	user.LdapUser = u.ldapUsers.GetUserData(u.ldapUsers.GetUserDNByMail(user.Email))
-}
-
-func (u *UserManager) populateDeviceData(device *Device) {
-	device.AllowedIPs = strings.Split(device.AllowedIPsStr, ", ")
-	device.IPs = strings.Split(device.IPsStr, ", ")
-	device.DNS = strings.Split(device.DNSStr, ", ")
-
-	// set data from WireGuard interface
-	device.Interface, _ = u.wg.GetDeviceInfo()
-}
-
-func (u *UserManager) GetAllUsers() []User {
-	users := make([]User, 0)
-	u.db.Find(&users)
-
-	for i := range users {
-		u.populateUserData(&users[i])
-	}
-
-	return users
-}
-
-func (u *UserManager) GetActiveUsers() []User {
-	users := make([]User, 0)
-	u.db.Where("deactivated_at IS NULL").Find(&users)
-
-	for i := range users {
-		u.populateUserData(&users[i])
-	}
-
-	return users
-}
-
-func (u *UserManager) GetFilteredAndSortedUsers(sortKey, sortDirection, search string) []User {
-	users := make([]User, 0)
-	u.db.Find(&users)
-
-	filteredUsers := make([]User, 0, len(users))
-	for i := range users {
-		u.populateUserData(&users[i])
-
-		if search == "" ||
-			strings.Contains(users[i].Email, search) ||
-			strings.Contains(users[i].Identifier, search) ||
-			strings.Contains(users[i].PublicKey, search) {
-			filteredUsers = append(filteredUsers, users[i])
-		}
-	}
-
-	sort.Slice(filteredUsers, func(i, j int) bool {
-		var sortValueLeft string
-		var sortValueRight string
-
-		switch sortKey {
-		case "id":
-			sortValueLeft = filteredUsers[i].Identifier
-			sortValueRight = filteredUsers[j].Identifier
-		case "pubKey":
-			sortValueLeft = filteredUsers[i].PublicKey
-			sortValueRight = filteredUsers[j].PublicKey
-		case "mail":
-			sortValueLeft = filteredUsers[i].Email
-			sortValueRight = filteredUsers[j].Email
-		case "ip":
-			sortValueLeft = filteredUsers[i].IPsStr
-			sortValueRight = filteredUsers[j].IPsStr
-		case "handshake":
-			if filteredUsers[i].Peer == nil {
-				return false
-			} else if filteredUsers[j].Peer == nil {
-				return true
-			}
-			sortValueLeft = filteredUsers[i].Peer.LastHandshakeTime.Format(time.RFC3339)
-			sortValueRight = filteredUsers[j].Peer.LastHandshakeTime.Format(time.RFC3339)
-		}
-
-		if sortDirection == "asc" {
-			return sortValueLeft < sortValueRight
-		} else {
-			return sortValueLeft > sortValueRight
-		}
-	})
-
-	return filteredUsers
-}
-
-func (u *UserManager) GetSortedUsersForEmail(sortKey, sortDirection, email string) []User {
-	users := make([]User, 0)
-	u.db.Where("email = ?", email).Find(&users)
-
-	for i := range users {
-		u.populateUserData(&users[i])
-	}
-
-	sort.Slice(users, func(i, j int) bool {
-		var sortValueLeft string
-		var sortValueRight string
-
-		switch sortKey {
-		case "id":
-			sortValueLeft = users[i].Identifier
-			sortValueRight = users[j].Identifier
-		case "pubKey":
-			sortValueLeft = users[i].PublicKey
-			sortValueRight = users[j].PublicKey
-		case "mail":
-			sortValueLeft = users[i].Email
-			sortValueRight = users[j].Email
-		case "ip":
-			sortValueLeft = users[i].IPsStr
-			sortValueRight = users[j].IPsStr
-		case "handshake":
-			if users[i].Peer == nil {
-				return true
-			} else if users[j].Peer == nil {
-				return false
-			}
-			sortValueLeft = users[i].Peer.LastHandshakeTime.Format(time.RFC3339)
-			sortValueRight = users[j].Peer.LastHandshakeTime.Format(time.RFC3339)
-		}
-
-		if sortDirection == "asc" {
-			return sortValueLeft < sortValueRight
-		} else {
-			return sortValueLeft > sortValueRight
-		}
-	})
-
-	return users
-}
-
-func (u *UserManager) GetDevice() Device {
-	devices := make([]Device, 0, 1)
-	u.db.Find(&devices)
-
-	for i := range devices {
-		u.populateDeviceData(&devices[i])
-	}
-
-	return devices[0] // use first device for now... more to come?
-}
-
-func (u *UserManager) GetUserByKey(publicKey string) User {
-	user := User{}
-	u.db.Where("public_key = ?", publicKey).FirstOrInit(&user)
-	u.populateUserData(&user)
-	return user
-}
-
-func (u *UserManager) GetUsersByMail(mail string) []User {
-	var users []User
-	u.db.Where("email = ?", mail).Find(&users)
-	for i := range users {
-		u.populateUserData(&users[i])
-	}
-
-	return users
-}
-
-func (u *UserManager) CreateUser(user User) error {
-	user.UID = fmt.Sprintf("u%x", md5.Sum([]byte(user.PublicKey)))
-	user.UpdatedAt = time.Now()
-	user.CreatedAt = time.Now()
-	user.AllowedIPsStr = strings.Join(user.AllowedIPs, ", ")
-	user.IPsStr = strings.Join(user.IPs, ", ")
-
-	res := u.db.Create(&user)
-	if res.Error != nil {
-		log.Errorf("failed to create user: %v", res.Error)
-		return res.Error
-	}
-
-	return nil
-}
-
-func (u *UserManager) UpdateUser(user User) error {
-	user.UpdatedAt = time.Now()
-	user.AllowedIPsStr = strings.Join(user.AllowedIPs, ", ")
-	user.IPsStr = strings.Join(user.IPs, ", ")
-
-	res := u.db.Save(&user)
-	if res.Error != nil {
-		log.Errorf("failed to update user: %v", res.Error)
-		return res.Error
-	}
-
-	return nil
-}
-
-func (u *UserManager) DeleteUser(user User) error {
-	res := u.db.Delete(&user)
-	if res.Error != nil {
-		log.Errorf("failed to delete user: %v", res.Error)
-		return res.Error
-	}
-
-	return nil
-}
-
-func (u *UserManager) UpdateDevice(device Device) error {
-	device.UpdatedAt = time.Now()
-	device.AllowedIPsStr = strings.Join(device.AllowedIPs, ", ")
-	device.IPsStr = strings.Join(device.IPs, ", ")
-	device.DNSStr = strings.Join(device.DNS, ", ")
-
-	res := u.db.Save(&device)
-	if res.Error != nil {
-		log.Errorf("failed to update device: %v", res.Error)
-		return res.Error
-	}
-
-	return nil
-}
-
-func (u *UserManager) GetAllReservedIps() ([]string, error) {
-	reservedIps := make([]string, 0)
-	users := u.GetAllUsers()
-	for _, user := range users {
-		for _, cidr := range user.IPs {
-			if cidr == "" {
-				continue
-			}
-			ip, _, err := net.ParseCIDR(cidr)
-			if err != nil {
-				return nil, err
-			}
-			reservedIps = append(reservedIps, ip.String())
-		}
-	}
-
-	device := u.GetDevice()
-	for _, cidr := range device.IPs {
-		if cidr == "" {
-			continue
-		}
-		ip, _, err := net.ParseCIDR(cidr)
-		if err != nil {
-			return nil, err
-		}
-
-		reservedIps = append(reservedIps, ip.String())
-	}
-
-	return reservedIps, nil
-}
-
-func (u *UserManager) IsIPReserved(cidr string) bool {
-	reserved, err := u.GetAllReservedIps()
-	if err != nil {
-		return true // in case something failed, assume the ip is reserved
-	}
-	ip, ipnet, err := net.ParseCIDR(cidr)
-	if err != nil {
-		return true
-	}
-
-	// this two addresses are not usable
-	broadcastAddr := common.BroadcastAddr(ipnet).String()
-	networkAddr := ipnet.IP.String()
-	address := ip.String()
-
-	if address == broadcastAddr || address == networkAddr {
-		return true
-	}
-
-	for _, r := range reserved {
-		if address == r {
-			return true
-		}
-	}
-
-	return false
-}
-
-// GetAvailableIp search for an available ip in cidr against a list of reserved ips
-func (u *UserManager) GetAvailableIp(cidr string) (string, error) {
-	reserved, err := u.GetAllReservedIps()
-	if err != nil {
-		return "", err
-	}
-	ip, ipnet, err := net.ParseCIDR(cidr)
-	if err != nil {
-		return "", err
-	}
-
-	// this two addresses are not usable
-	broadcastAddr := common.BroadcastAddr(ipnet).String()
-	networkAddr := ipnet.IP.String()
-
-	for ip := ip.Mask(ipnet.Mask); ipnet.Contains(ip); common.IncreaseIP(ip) {
-		ok := true
-		address := ip.String()
-		for _, r := range reserved {
-			if address == r {
-				ok = false
-				break
-			}
-		}
-		if ok && address != networkAddr && address != broadcastAddr {
-			netMask := "/32"
-			if common.IsIPv6(address) {
-				netMask = "/128"
-			}
-			return address + netMask, nil
-		}
-	}
-
-	return "", errors.New("no more available address from cidr")
-}

internal/server/version.go

@@ -0,0 +1,4 @@
+package server
+
+var Version = "testbuild"
+var DatabaseVersion = "1.0.8"

internal/users/manager.go

@@ -0,0 +1,224 @@
+package users
+
+import (
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"gorm.io/gorm"
+)
+
+type Manager struct {
+	db *gorm.DB
+}
+
+func NewManager(db *gorm.DB) (*Manager, error) {
+	m := &Manager{db: db}
+
+	// check if old user table exists (from version <= 1.0.2), if so rename it to peers.
+	if m.db.Migrator().HasTable("users") && !m.db.Migrator().HasTable("peers") {
+		if err := m.db.Migrator().RenameTable("users", "peers"); err != nil {
+			return nil, errors.Wrapf(err, "failed to migrate old database structure")
+		} else {
+			logrus.Infof("upgraded database format from version v1.0.2")
+		}
+	}
+
+	if err := m.db.AutoMigrate(&User{}); err != nil {
+		return nil, errors.Wrap(err, "failed to migrate user database")
+	}
+
+	return m, nil
+}
+
+func (m Manager) GetUsers() []User {
+	users := make([]User, 0)
+	m.db.Find(&users)
+	return users
+}
+
+func (m Manager) GetUsersUnscoped() []User {
+	users := make([]User, 0)
+	m.db.Unscoped().Find(&users)
+	return users
+}
+
+func (m Manager) UserExists(email string) bool {
+	return m.GetUser(email) != nil
+}
+
+func (m Manager) GetUser(email string) *User {
+	email = strings.ToLower(email)
+
+	user := User{}
+	m.db.Where("email = ?", email).First(&user)
+
+	if user.Email != email {
+		return nil
+	}
+
+	return &user
+}
+
+func (m Manager) GetUserUnscoped(email string) *User {
+	email = strings.ToLower(email)
+
+	user := User{}
+	m.db.Unscoped().Where("email = ?", email).First(&user)
+
+	if user.Email != email {
+		return nil
+	}
+
+	return &user
+}
+
+func (m Manager) GetFilteredAndSortedUsers(sortKey, sortDirection, search string) []User {
+	users := make([]User, 0)
+	m.db.Find(&users)
+
+	filteredUsers := filterUsers(users, search)
+	sortUsers(filteredUsers, sortKey, sortDirection)
+
+	return filteredUsers
+}
+
+func (m Manager) GetFilteredAndSortedUsersUnscoped(sortKey, sortDirection, search string) []User {
+	users := make([]User, 0)
+	m.db.Unscoped().Find(&users)
+
+	filteredUsers := filterUsers(users, search)
+	sortUsers(filteredUsers, sortKey, sortDirection)
+
+	return filteredUsers
+}
+
+func (m Manager) GetOrCreateUser(email string) (*User, error) {
+	email = strings.ToLower(email)
+
+	user := User{}
+	m.db.Where("email = ?", email).FirstOrInit(&user)
+
+	if user.Email != email {
+		user.Email = email
+		user.CreatedAt = time.Now()
+		user.UpdatedAt = time.Now()
+		user.IsAdmin = false
+		user.Source = UserSourceDatabase
+
+		res := m.db.Create(&user)
+		if res.Error != nil {
+			return nil, errors.Wrapf(res.Error, "failed to create user %s", email)
+		}
+	}
+
+	return &user, nil
+}
+
+func (m Manager) GetOrCreateUserUnscoped(email string) (*User, error) {
+	email = strings.ToLower(email)
+
+	user := User{}
+	m.db.Unscoped().Where("email = ?", email).FirstOrInit(&user)
+
+	if user.Email != email {
+		user.Email = email
+		user.CreatedAt = time.Now()
+		user.UpdatedAt = time.Now()
+		user.IsAdmin = false
+		user.Source = UserSourceDatabase
+
+		res := m.db.Create(&user)
+		if res.Error != nil {
+			return nil, errors.Wrapf(res.Error, "failed to create user %s", email)
+		}
+	}
+
+	return &user, nil
+}
+
+func (m Manager) CreateUser(user *User) error {
+	user.Email = strings.ToLower(user.Email)
+	user.Source = UserSourceDatabase
+	res := m.db.Create(user)
+	if res.Error != nil {
+		return errors.Wrapf(res.Error, "failed to create user %s", user.Email)
+	}
+
+	return nil
+}
+
+func (m Manager) UpdateUser(user *User) error {
+	user.Email = strings.ToLower(user.Email)
+	res := m.db.Save(user)
+	if res.Error != nil {
+		return errors.Wrapf(res.Error, "failed to update user %s", user.Email)
+	}
+
+	return nil
+}
+
+func (m Manager) DeleteUser(user *User) error {
+	user.Email = strings.ToLower(user.Email)
+	res := m.db.Delete(user)
+	if res.Error != nil {
+		return errors.Wrapf(res.Error, "failed to update user %s", user.Email)
+	}
+
+	return nil
+}
+
+func sortUsers(users []User, key, direction string) {
+	sort.Slice(users, func(i, j int) bool {
+		var sortValueLeft string
+		var sortValueRight string
+
+		switch key {
+		case "email":
+			sortValueLeft = users[i].Email
+			sortValueRight = users[j].Email
+		case "firstname":
+			sortValueLeft = users[i].Firstname
+			sortValueRight = users[j].Firstname
+		case "lastname":
+			sortValueLeft = users[i].Lastname
+			sortValueRight = users[j].Lastname
+		case "phone":
+			sortValueLeft = users[i].Phone
+			sortValueRight = users[j].Phone
+		case "source":
+			sortValueLeft = string(users[i].Source)
+			sortValueRight = string(users[j].Source)
+		case "admin":
+			sortValueLeft = strconv.FormatBool(users[i].IsAdmin)
+			sortValueRight = strconv.FormatBool(users[j].IsAdmin)
+		}
+
+		if direction == "asc" {
+			return sortValueLeft < sortValueRight
+		} else {
+			return sortValueLeft > sortValueRight
+		}
+	})
+}
+
+func filterUsers(users []User, search string) []User {
+	if search == "" {
+		return users
+	}
+
+	filteredUsers := make([]User, 0, len(users))
+	for i := range users {
+		if strings.Contains(users[i].Email, strings.ToLower(search)) ||
+			strings.Contains(users[i].Firstname, search) ||
+			strings.Contains(users[i].Lastname, search) ||
+			strings.Contains(string(users[i].Source), search) ||
+			strings.Contains(users[i].Phone, search) {
+			filteredUsers = append(filteredUsers, users[i])
+		}
+	}
+	return filteredUsers
+}

internal/users/user.go

@@ -0,0 +1,46 @@
+package users
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+type UserSource string
+
+const (
+	UserSourceLdap     UserSource = "ldap" // LDAP / ActiveDirectory
+	UserSourceDatabase UserSource = "db"   // sqlite / mysql database
+	UserSourceOIDC     UserSource = "oidc" // open id connect, TODO: implement
+)
+
+type PrivateString string
+
+func (PrivateString) MarshalJSON() ([]byte, error) {
+	return []byte(`""`), nil
+}
+
+func (PrivateString) String() string {
+	return ""
+}
+
+// User is the user model that gets linked to peer entries, by default an empty usermodel with only the email address is created
+type User struct {
+	// required fields
+	Email   string `gorm:"primaryKey" form:"email" binding:"required,email"`
+	Source  UserSource
+	IsAdmin bool
+
+	// optional fields
+	Firstname string `form:"firstname" binding:"required"`
+	Lastname  string `form:"lastname" binding:"required"`
+	Phone     string `form:"phone" binding:"omitempty"`
+
+	// optional, integrated password authentication
+	Password PrivateString `form:"password" binding:"omitempty"`
+
+	// database internal fields
+	CreatedAt time.Time
+	UpdatedAt time.Time
+	DeletedAt gorm.DeletedAt `gorm:"index" json:",omitempty"`
+}

internal/wireguard/config.go

@@ -1,7 +1,17 @@
 package wireguard
 
+import "github.com/h44z/wg-portal/internal/common"
+
 type Config struct {
-	DeviceName        string `yaml:"device" envconfig:"WG_DEVICE"`
-	WireGuardConfig   string `yaml:"configFile" envconfig:"WG_CONFIG_FILE"`    // optional, if set, updates will be written to this file
+	DeviceNames         []string `yaml:"devices" envconfig:"WG_DEVICES"`              // managed devices
+	DefaultDeviceName   string   `yaml:"defaultDevice" envconfig:"WG_DEFAULT_DEVICE"` // this device is used for auto-created peers, use GetDefaultDeviceName() to access this field
+	ConfigDirectoryPath string   `yaml:"configDirectory" envconfig:"WG_CONFIG_PATH"`  // optional, if set, updates will be written to this path, filename: <devicename>.conf
 	ManageIPAddresses   bool     `yaml:"manageIPAddresses" envconfig:"MANAGE_IPS"`    // handle ip-address setup of interface
 }
+
+func (c Config) GetDefaultDeviceName() string {
+	if c.DefaultDeviceName == "" || !common.ListContains(c.DeviceNames, c.DefaultDeviceName) {
+		return c.DeviceNames[0]
+	}
+	return c.DefaultDeviceName
+}

internal/wireguard/manager.go

@@ -1,13 +1,14 @@
 package wireguard
 
 import (
-	"fmt"
 	"sync"
 
+	"github.com/pkg/errors"
 	"golang.zx2c4.com/wireguard/wgctrl"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 )
 
+// Manager offers a synchronized management interface to the real WireGuard interface.
 type Manager struct {
 	Cfg *Config
 	wg  *wgctrl.Client
@@ -18,45 +19,45 @@ func (m *Manager) Init() error {
 	var err error
 	m.wg, err = wgctrl.New()
 	if err != nil {
-		return fmt.Errorf("could not create WireGuard client: %w", err)
+		return errors.Wrap(err, "could not create WireGuard client")
 	}
 
 	return nil
 }
 
-func (m *Manager) GetDeviceInfo() (*wgtypes.Device, error) {
-	dev, err := m.wg.Device(m.Cfg.DeviceName)
+func (m *Manager) GetDeviceInfo(device string) (*wgtypes.Device, error) {
+	dev, err := m.wg.Device(device)
 	if err != nil {
-		return nil, fmt.Errorf("could not get WireGuard device: %w", err)
+		return nil, errors.Wrap(err, "could not get WireGuard device")
 	}
 
 	return dev, nil
 }
 
-func (m *Manager) GetPeerList() ([]wgtypes.Peer, error) {
+func (m *Manager) GetPeerList(device string) ([]wgtypes.Peer, error) {
 	m.mux.RLock()
 	defer m.mux.RUnlock()
 
-	dev, err := m.wg.Device(m.Cfg.DeviceName)
+	dev, err := m.wg.Device(device)
 	if err != nil {
-		return nil, fmt.Errorf("could not get WireGuard device: %w", err)
+		return nil, errors.Wrap(err, "could not get WireGuard device")
 	}
 
 	return dev.Peers, nil
 }
 
-func (m *Manager) GetPeer(pubKey string) (*wgtypes.Peer, error) {
+func (m *Manager) GetPeer(device string, pubKey string) (*wgtypes.Peer, error) {
 	m.mux.RLock()
 	defer m.mux.RUnlock()
 
 	publicKey, err := wgtypes.ParseKey(pubKey)
 	if err != nil {
-		return nil, fmt.Errorf("invalid public key: %w", err)
+		return nil, errors.Wrap(err, "invalid public key")
 	}
 
-	peers, err := m.GetPeerList()
+	peers, err := m.GetPeerList(device)
 	if err != nil {
-		return nil, fmt.Errorf("could not get WireGuard peers: %w", err)
+		return nil, errors.Wrap(err, "could not get WireGuard peers")
 	}
 
 	for _, peer := range peers {
@@ -65,41 +66,41 @@ func (m *Manager) GetPeer(pubKey string) (*wgtypes.Peer, error) {
 		}
 	}
 
-	return nil, fmt.Errorf("could not find WireGuard peer: %s", pubKey)
+	return nil, errors.Errorf("could not find WireGuard peer: %s", pubKey)
 }
 
-func (m *Manager) AddPeer(cfg wgtypes.PeerConfig) error {
+func (m *Manager) AddPeer(device string, cfg wgtypes.PeerConfig) error {
 	m.mux.Lock()
 	defer m.mux.Unlock()
 
-	err := m.wg.ConfigureDevice(m.Cfg.DeviceName, wgtypes.Config{Peers: []wgtypes.PeerConfig{cfg}})
+	err := m.wg.ConfigureDevice(device, wgtypes.Config{Peers: []wgtypes.PeerConfig{cfg}})
 	if err != nil {
-		return fmt.Errorf("could not configure WireGuard device: %w", err)
+		return errors.Wrap(err, "could not configure WireGuard device")
 	}
 
 	return nil
 }
 
-func (m *Manager) UpdatePeer(cfg wgtypes.PeerConfig) error {
+func (m *Manager) UpdatePeer(device string, cfg wgtypes.PeerConfig) error {
 	m.mux.Lock()
 	defer m.mux.Unlock()
 
 	cfg.UpdateOnly = true
-	err := m.wg.ConfigureDevice(m.Cfg.DeviceName, wgtypes.Config{Peers: []wgtypes.PeerConfig{cfg}})
+	err := m.wg.ConfigureDevice(device, wgtypes.Config{Peers: []wgtypes.PeerConfig{cfg}})
 	if err != nil {
-		return fmt.Errorf("could not configure WireGuard device: %w", err)
+		return errors.Wrap(err, "could not configure WireGuard device")
 	}
 
 	return nil
 }
 
-func (m *Manager) RemovePeer(pubKey string) error {
+func (m *Manager) RemovePeer(device string, pubKey string) error {
 	m.mux.Lock()
 	defer m.mux.Unlock()
 
 	publicKey, err := wgtypes.ParseKey(pubKey)
 	if err != nil {
-		return fmt.Errorf("invalid public key: %w", err)
+		return errors.Wrap(err, "invalid public key")
 	}
 
 	peer := wgtypes.PeerConfig{
@@ -107,14 +108,14 @@ func (m *Manager) RemovePeer(pubKey string) error {
 		Remove:    true,
 	}
 
-	err = m.wg.ConfigureDevice(m.Cfg.DeviceName, wgtypes.Config{Peers: []wgtypes.PeerConfig{peer}})
+	err = m.wg.ConfigureDevice(device, wgtypes.Config{Peers: []wgtypes.PeerConfig{peer}})
 	if err != nil {
-		return fmt.Errorf("could not configure WireGuard device: %w", err)
+		return errors.Wrap(err, "could not configure WireGuard device")
 	}
 
 	return nil
 }
 
-func (m *Manager) UpdateDevice(name string, cfg wgtypes.Config) error {
-	return m.wg.ConfigureDevice(name, cfg)
+func (m *Manager) UpdateDevice(device string, cfg wgtypes.Config) error {
+	return m.wg.ConfigureDevice(device, cfg)
 }

internal/wireguard/manager_net.go

@@ -0,0 +1,121 @@
+package wireguard
+
+import (
+	"fmt"
+	"net"
+
+	"github.com/milosgajdos/tenus"
+	"github.com/pkg/errors"
+)
+
+const DefaultMTU = 1420
+
+func (m *Manager) GetIPAddress(device string) ([]string, error) {
+	wgInterface, err := tenus.NewLinkFrom(device)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not retrieve WireGuard interface %s", device)
+	}
+
+	// Get golang net.interface
+	iface := wgInterface.NetInterface()
+	if iface == nil { // Not sure if this check is really necessary
+		return nil, errors.Wrap(err, "could not retrieve WireGuard net.interface")
+	}
+
+	addrs, err := iface.Addrs()
+	if err != nil {
+		return nil, errors.Wrap(err, "could not retrieve WireGuard ip addresses")
+	}
+
+	ipAddresses := make([]string, 0, len(addrs))
+	for _, addr := range addrs {
+		var ip net.IP
+		var mask net.IPMask
+		switch v := addr.(type) {
+		case *net.IPNet:
+			ip = v.IP
+			mask = v.Mask
+		case *net.IPAddr:
+			ip = v.IP
+			mask = ip.DefaultMask()
+		}
+		if ip == nil || mask == nil {
+			continue // something is wrong?
+		}
+
+		maskSize, _ := mask.Size()
+		cidr := fmt.Sprintf("%s/%d", ip.String(), maskSize)
+		ipAddresses = append(ipAddresses, cidr)
+	}
+
+	return ipAddresses, nil
+}
+
+func (m *Manager) SetIPAddress(device string, cidrs []string) error {
+	wgInterface, err := tenus.NewLinkFrom(device)
+	if err != nil {
+		return errors.Wrapf(err, "could not retrieve WireGuard interface %s", device)
+	}
+
+	// First remove existing IP addresses
+	existingIPs, err := m.GetIPAddress(device)
+	if err != nil {
+		return errors.Wrap(err, "could not retrieve IP addresses")
+	}
+	for _, cidr := range existingIPs {
+		wgIp, wgIpNet, err := net.ParseCIDR(cidr)
+		if err != nil {
+			return errors.Wrapf(err, "unable to parse cidr %s", cidr)
+		}
+
+		if err := wgInterface.UnsetLinkIp(wgIp, wgIpNet); err != nil {
+			return errors.Wrapf(err, "failed to unset ip %s", cidr)
+		}
+	}
+
+	// Next set new IP addresses
+	for _, cidr := range cidrs {
+		wgIp, wgIpNet, err := net.ParseCIDR(cidr)
+		if err != nil {
+			return errors.Wrapf(err, "unable to parse cidr %s", cidr)
+		}
+
+		if err := wgInterface.SetLinkIp(wgIp, wgIpNet); err != nil {
+			return errors.Wrapf(err, "failed to set ip %s", cidr)
+		}
+	}
+
+	return nil
+}
+
+func (m *Manager) GetMTU(device string) (int, error) {
+	wgInterface, err := tenus.NewLinkFrom(device)
+	if err != nil {
+		return 0, errors.Wrapf(err, "could not retrieve WireGuard interface %s", device)
+	}
+
+	// Get golang net.interface
+	iface := wgInterface.NetInterface()
+	if iface == nil { // Not sure if this check is really necessary
+		return 0, errors.Wrap(err, "could not retrieve WireGuard net.interface")
+	}
+
+	return iface.MTU, nil
+}
+
+func (m *Manager) SetMTU(device string, mtu int) error {
+	wgInterface, err := tenus.NewLinkFrom(device)
+	if err != nil {
+		return errors.Wrapf(err, "could not retrieve WireGuard interface %s", device)
+	}
+
+	if mtu == 0 {
+		mtu = DefaultMTU
+	}
+
+	if err := wgInterface.SetLinkMTU(mtu); err != nil {
+		return errors.Wrapf(err, "could not set MTU on interface %s", device)
+	}
+
+	return nil
+}

internal/wireguard/net.go

@@ -1,120 +0,0 @@
-package wireguard
-
-import (
-	"fmt"
-	"net"
-
-	"github.com/milosgajdos/tenus"
-)
-
-const WireGuardDefaultMTU = 1420
-
-func (m *Manager) GetIPAddress() ([]string, error) {
-	wgInterface, err := tenus.NewLinkFrom(m.Cfg.DeviceName)
-	if err != nil {
-		return nil, fmt.Errorf("could not retrieve WireGuard interface %s: %w", m.Cfg.DeviceName, err)
-	}
-
-	// Get golang net.interface
-	iface := wgInterface.NetInterface()
-	if iface == nil { // Not sure if this check is really necessary
-		return nil, fmt.Errorf("could not retrieve WireGuard net.interface: %w", err)
-	}
-
-	addrs, err := iface.Addrs()
-	if err != nil {
-		return nil, fmt.Errorf("could not retrieve WireGuard ip addresses: %w", err)
-	}
-
-	ipAddresses := make([]string, 0, len(addrs))
-	for _, addr := range addrs {
-		var ip net.IP
-		var mask net.IPMask
-		switch v := addr.(type) {
-		case *net.IPNet:
-			ip = v.IP
-			mask = v.Mask
-		case *net.IPAddr:
-			ip = v.IP
-			mask = ip.DefaultMask()
-		}
-		if ip == nil {
-			continue // something is wrong?
-		}
-
-		maskSize, _ := mask.Size()
-		cidr := fmt.Sprintf("%s/%d", ip.String(), maskSize)
-		ipAddresses = append(ipAddresses, cidr)
-	}
-
-	return ipAddresses, nil
-}
-
-func (m *Manager) SetIPAddress(cidrs []string) error {
-	wgInterface, err := tenus.NewLinkFrom(m.Cfg.DeviceName)
-	if err != nil {
-		return fmt.Errorf("could not retrieve WireGuard interface %s: %w", m.Cfg.DeviceName, err)
-	}
-
-	// First remove existing IP addresses
-	existingIPs, err := m.GetIPAddress()
-	if err != nil {
-		return err
-	}
-	for _, cidr := range existingIPs {
-		wgIp, wgIpNet, err := net.ParseCIDR(cidr)
-		if err != nil {
-			return fmt.Errorf("unable to parse cidr %s: %w", cidr, err)
-		}
-
-		if err := wgInterface.UnsetLinkIp(wgIp, wgIpNet); err != nil {
-			return fmt.Errorf("failed to unset ip %s: %w", cidr, err)
-		}
-	}
-
-	// Next set new IP adrresses
-	for _, cidr := range cidrs {
-		wgIp, wgIpNet, err := net.ParseCIDR(cidr)
-		if err != nil {
-			return fmt.Errorf("unable to parse cidr %s: %w", cidr, err)
-		}
-
-		if err := wgInterface.SetLinkIp(wgIp, wgIpNet); err != nil {
-			return fmt.Errorf("failed to set ip %s: %w", cidr, err)
-		}
-	}
-
-	return nil
-}
-
-func (m *Manager) GetMTU() (int, error) {
-	wgInterface, err := tenus.NewLinkFrom(m.Cfg.DeviceName)
-	if err != nil {
-		return 0, fmt.Errorf("could not retrieve WireGuard interface %s: %w", m.Cfg.DeviceName, err)
-	}
-
-	// Get golang net.interface
-	iface := wgInterface.NetInterface()
-	if iface == nil { // Not sure if this check is really necessary
-		return 0, fmt.Errorf("could not retrieve WireGuard net.interface: %w", err)
-	}
-
-	return iface.MTU, nil
-}
-
-func (m *Manager) SetMTU(mtu int) error {
-	wgInterface, err := tenus.NewLinkFrom(m.Cfg.DeviceName)
-	if err != nil {
-		return fmt.Errorf("could not retrieve WireGuard interface %s: %w", m.Cfg.DeviceName, err)
-	}
-
-	if mtu == 0 {
-		mtu = WireGuardDefaultMTU
-	}
-
-	if err := wgInterface.SetLinkMTU(mtu); err != nil {
-		return fmt.Errorf("could not set MTU on interface %s: %w", m.Cfg.DeviceName, err)
-	}
-
-	return nil
-}

internal/wireguard/peermanager.go

@@ -0,0 +1,868 @@
+package wireguard
+
+// WireGuard documentation: https://manpages.debian.org/unstable/wireguard-tools/wg.8.en.html
+
+import (
+	"bytes"
+	"crypto/md5"
+	"fmt"
+	"net"
+	"regexp"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/gin-gonic/gin/binding"
+	"github.com/go-playground/validator/v10"
+	"github.com/h44z/wg-portal/internal/common"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"github.com/skip2/go-qrcode"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+	"gorm.io/gorm"
+)
+
+//
+// CUSTOM VALIDATORS ----------------------------------------------------------------------------
+//
+var cidrList validator.Func = func(fl validator.FieldLevel) bool {
+	cidrListStr := fl.Field().String()
+
+	cidrList := common.ParseStringList(cidrListStr)
+	for i := range cidrList {
+		_, _, err := net.ParseCIDR(cidrList[i])
+		if err != nil {
+			return false
+		}
+	}
+	return true
+}
+
+var ipList validator.Func = func(fl validator.FieldLevel) bool {
+	ipListStr := fl.Field().String()
+	ipList := common.ParseStringList(ipListStr)
+	for i := range ipList {
+		ip := net.ParseIP(ipList[i])
+		if ip == nil {
+			return false
+		}
+	}
+	return true
+}
+
+func init() {
+	if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
+		_ = v.RegisterValidation("cidrlist", cidrList)
+		_ = v.RegisterValidation("iplist", ipList)
+	}
+}
+
+//
+//  PEER ----------------------------------------------------------------------------------------
+//
+
+type Peer struct {
+	Peer   *wgtypes.Peer `gorm:"-" json:"-"` // WireGuard peer
+	Config string        `gorm:"-" json:"-"`
+
+	UID                  string     `form:"uid" binding:"required,alphanum" json:"-"` // uid for html identification
+	DeviceName           string     `gorm:"index" form:"device" binding:"required"`
+	DeviceType           DeviceType `gorm:"-" form:"devicetype" binding:"required,oneof=client server" json:"-"`
+	Identifier           string     `form:"identifier" binding:"required,max=64"` // Identifier AND Email make a WireGuard peer unique
+	Email                string     `gorm:"index" form:"mail" binding:"required,email"`
+	IgnoreGlobalSettings bool       `form:"ignoreglobalsettings"`
+
+	IsOnline          bool   `gorm:"-" json:"-"`
+	IsNew             bool   `gorm:"-" json:"-"`
+	LastHandshake     string `gorm:"-" json:"-"`
+	LastHandshakeTime string `gorm:"-" json:"-"`
+
+	// Core WireGuard Settings
+	PublicKey           string `gorm:"primaryKey" form:"pubkey" binding:"required,base64"` // the public key of the peer itself
+	PresharedKey        string `form:"presharedkey" binding:"omitempty,base64"`
+	AllowedIPsStr       string `form:"allowedip" binding:"cidrlist"`    // a comma separated list of IPs that are used in the client config file
+	AllowedIPsSrvStr    string `form:"allowedipSrv" binding:"cidrlist"` // a comma separated list of IPs that are used in the server config file
+	Endpoint            string `form:"endpoint" binding:"omitempty,hostname_port"`
+	PersistentKeepalive int    `form:"keepalive" binding:"gte=0"`
+
+	// Misc. WireGuard Settings
+	PrivateKey string `form:"privkey" binding:"omitempty,base64"`
+	IPsStr     string `form:"ip" binding:"cidrlist,required_if=DeviceType server"` // a comma separated list of IPs of the client
+	DNSStr     string `form:"dns" binding:"iplist"`                                // comma separated list of the DNS servers for the client
+	// Global Device Settings (can be ignored, only make sense if device is in server mode)
+	Mtu int `form:"mtu" binding:"gte=0,lte=1500"`
+
+	DeactivatedAt *time.Time `json:",omitempty"`
+	CreatedBy     string
+	UpdatedBy     string
+	CreatedAt     time.Time
+	UpdatedAt     time.Time
+}
+
+func (p *Peer) SetIPAddresses(addresses ...string) {
+	p.IPsStr = common.ListToString(addresses)
+}
+
+func (p Peer) GetIPAddresses() []string {
+	return common.ParseStringList(p.IPsStr)
+}
+
+func (p *Peer) SetDNSServers(addresses ...string) {
+	p.DNSStr = common.ListToString(addresses)
+}
+
+func (p Peer) GetDNSServers() []string {
+	return common.ParseStringList(p.DNSStr)
+}
+
+func (p *Peer) SetAllowedIPs(addresses ...string) {
+	p.AllowedIPsStr = common.ListToString(addresses)
+}
+
+func (p Peer) GetAllowedIPs() []string {
+	return common.ParseStringList(p.AllowedIPsStr)
+}
+
+func (p Peer) GetAllowedIPsSrv() []string {
+	return common.ParseStringList(p.AllowedIPsSrvStr)
+}
+
+func (p Peer) GetConfig(dev *Device) wgtypes.PeerConfig {
+	publicKey, _ := wgtypes.ParseKey(p.PublicKey)
+
+	var presharedKey *wgtypes.Key
+	if p.PresharedKey != "" {
+		presharedKeyTmp, _ := wgtypes.ParseKey(p.PresharedKey)
+		presharedKey = &presharedKeyTmp
+	}
+
+	var endpoint *net.UDPAddr
+	if p.Endpoint != "" && dev.Type == DeviceTypeClient {
+		addr, err := net.ResolveUDPAddr("udp", p.Endpoint)
+		if err == nil {
+			endpoint = addr
+		}
+	}
+
+	var keepAlive *time.Duration
+	if p.PersistentKeepalive != 0 {
+		keepAliveDuration := time.Duration(p.PersistentKeepalive) * time.Second
+		keepAlive = &keepAliveDuration
+	}
+
+	allowedIPs := make([]net.IPNet, 0)
+	var peerAllowedIPs []string
+	switch dev.Type {
+	case DeviceTypeClient:
+		peerAllowedIPs = p.GetAllowedIPs()
+	case DeviceTypeServer:
+		peerAllowedIPs = p.GetIPAddresses()
+		peerAllowedIPs = append(peerAllowedIPs, p.GetAllowedIPsSrv()...)
+	}
+	for _, ip := range peerAllowedIPs {
+		_, ipNet, err := net.ParseCIDR(ip)
+		if err == nil {
+			allowedIPs = append(allowedIPs, *ipNet)
+		}
+	}
+
+	cfg := wgtypes.PeerConfig{
+		PublicKey:                   publicKey,
+		Remove:                      false,
+		UpdateOnly:                  false,
+		PresharedKey:                presharedKey,
+		Endpoint:                    endpoint,
+		PersistentKeepaliveInterval: keepAlive,
+		ReplaceAllowedIPs:           true,
+		AllowedIPs:                  allowedIPs,
+	}
+
+	return cfg
+}
+
+func (p Peer) GetConfigFile(device Device) ([]byte, error) {
+	var tplBuff bytes.Buffer
+
+	err := templateCache.ExecuteTemplate(&tplBuff, "peer.tpl", gin.H{
+		"Peer":      p,
+		"Interface": device,
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to execute client template")
+	}
+
+	return tplBuff.Bytes(), nil
+}
+
+func (p Peer) GetQRCode() ([]byte, error) {
+	png, err := qrcode.Encode(p.Config, qrcode.Medium, 250)
+	if err == nil {
+		return png, nil
+	}
+
+	if err.Error() != "content too long to encode" {
+		logrus.Errorf("failed to create qrcode: %v", err)
+		return nil, errors.Wrap(err, "failed to encode qrcode")
+	}
+
+	png, err = qrcode.Encode(p.Config, qrcode.Low, 250)
+	if err != nil {
+		logrus.Errorf("failed to create qrcode: %v", err)
+		return nil, errors.Wrap(err, "failed to encode qrcode")
+	}
+
+	return png, nil
+}
+
+func (p Peer) IsValid() bool {
+	if p.PublicKey == "" {
+		return false
+	}
+
+	return true
+}
+
+func (p Peer) GetConfigFileName() string {
+	reg := regexp.MustCompile("[^a-zA-Z0-9_-]+")
+	return reg.ReplaceAllString(strings.ReplaceAll(p.Identifier, " ", "-"), "") + ".conf"
+}
+
+//
+//  DEVICE --------------------------------------------------------------------------------------
+//
+
+type DeviceType string
+
+const (
+	DeviceTypeServer DeviceType = "server"
+	DeviceTypeClient DeviceType = "client"
+)
+
+type Device struct {
+	Interface *wgtypes.Device `gorm:"-" json:"-"`
+	Peers     []Peer          `gorm:"foreignKey:DeviceName" binding:"-" json:"-"` // linked WireGuard peers
+
+	Type        DeviceType `form:"devicetype" binding:"required,oneof=client server"`
+	DeviceName  string     `form:"device" gorm:"primaryKey" binding:"required,alphanum"`
+	DisplayName string     `form:"displayname" binding:"omitempty,max=200"`
+
+	// Core WireGuard Settings (Interface section)
+	PrivateKey   string `form:"privkey" binding:"required,base64"`
+	ListenPort   int    `form:"port" binding:"required_if=Type server,omitempty,gt=0,lt=65535"`
+	FirewallMark int32  `form:"firewallmark" binding:"gte=0"`
+	// Misc. WireGuard Settings
+	PublicKey    string `form:"pubkey" binding:"required,base64"`
+	Mtu          int    `form:"mtu" binding:"gte=0,lte=1500"`   // the interface MTU, wg-quick addition
+	IPsStr       string `form:"ip" binding:"required,cidrlist"` // comma separated list of the IPs of the client, wg-quick addition
+	DNSStr       string `form:"dns" binding:"iplist"`           // comma separated list of the DNS servers of the client, wg-quick addition
+	RoutingTable string `form:"routingtable"`                   // the routing table, wg-quick addition
+	PreUp        string `form:"preup"`                          // pre up script, wg-quick addition
+	PostUp       string `form:"postup"`                         // post up script, wg-quick addition
+	PreDown      string `form:"predown"`                        // pre down script, wg-quick addition
+	PostDown     string `form:"postdown"`                       // post down script, wg-quick addition
+	SaveConfig   bool   `form:"saveconfig"`                     // if set to `true', the configuration is saved from the current state of the interface upon shutdown, wg-quick addition
+
+	// Settings that are applied to all peer by default
+	DefaultEndpoint            string `form:"endpoint" binding:"required_if=Type server,omitempty,hostname_port"`
+	DefaultAllowedIPsStr       string `form:"allowedip" binding:"cidrlist"` // comma separated list  of IPs that are used in the client config file
+	DefaultPersistentKeepalive int    `form:"keepalive" binding:"gte=0"`
+
+	CreatedAt time.Time
+	UpdatedAt time.Time
+}
+
+func (d Device) IsValid() bool {
+	switch d.Type {
+	case DeviceTypeServer:
+		if d.PublicKey == "" {
+			return false
+		}
+		if len(d.GetIPAddresses()) == 0 {
+			return false
+		}
+		if d.DefaultEndpoint == "" {
+			return false
+		}
+	case DeviceTypeClient:
+		if d.PublicKey == "" {
+			return false
+		}
+		if len(d.GetIPAddresses()) == 0 {
+			return false
+		}
+	}
+
+	return true
+}
+
+func (d *Device) SetIPAddresses(addresses ...string) {
+	d.IPsStr = common.ListToString(addresses)
+}
+
+func (d Device) GetIPAddresses() []string {
+	return common.ParseStringList(d.IPsStr)
+}
+
+func (d *Device) SetDNSServers(addresses ...string) {
+	d.DNSStr = common.ListToString(addresses)
+}
+
+func (d Device) GetDNSServers() []string {
+	return common.ParseStringList(d.DNSStr)
+}
+
+func (d *Device) SetDefaultAllowedIPs(addresses ...string) {
+	d.DefaultAllowedIPsStr = common.ListToString(addresses)
+}
+
+func (d Device) GetDefaultAllowedIPs() []string {
+	return common.ParseStringList(d.DefaultAllowedIPsStr)
+}
+
+func (d Device) GetConfig() wgtypes.Config {
+	var privateKey *wgtypes.Key
+	if d.PrivateKey != "" {
+		pKey, _ := wgtypes.ParseKey(d.PrivateKey)
+		privateKey = &pKey
+	}
+
+	fwMark := int(d.FirewallMark)
+
+	cfg := wgtypes.Config{
+		PrivateKey:   privateKey,
+		ListenPort:   &d.ListenPort,
+		FirewallMark: &fwMark,
+	}
+
+	return cfg
+}
+
+func (d Device) GetConfigFile(peers []Peer) ([]byte, error) {
+	var tplBuff bytes.Buffer
+
+	err := templateCache.ExecuteTemplate(&tplBuff, "interface.tpl", gin.H{
+		"Peers":     peers,
+		"Interface": d,
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to execute server template")
+	}
+
+	return tplBuff.Bytes(), nil
+}
+
+//
+//  PEER-MANAGER --------------------------------------------------------------------------------
+//
+
+type PeerManager struct {
+	db *gorm.DB
+	wg *Manager
+}
+
+func NewPeerManager(db *gorm.DB, wg *Manager) (*PeerManager, error) {
+	pm := &PeerManager{db: db, wg: wg}
+
+	// check if old device table exists (from version <= 1.0.3), if so migrate it.
+	if db.Migrator().HasColumn(&Device{}, "endpoint") {
+		if err := db.Migrator().RenameColumn(&Device{}, "endpoint", "default_endpoint"); err != nil {
+			return nil, errors.Wrapf(err, "failed to migrate old database structure for column endpoint")
+		}
+	}
+	if db.Migrator().HasColumn(&Device{}, "allowed_ips_str") {
+		if err := db.Migrator().RenameColumn(&Device{}, "allowed_ips_str", "default_allowed_ips_str"); err != nil {
+			return nil, errors.Wrapf(err, "failed to migrate old database structure for column allowed_ips_str")
+		}
+	}
+	if db.Migrator().HasColumn(&Device{}, "persistent_keepalive") {
+		if err := db.Migrator().RenameColumn(&Device{}, "persistent_keepalive", "default_persistent_keepalive"); err != nil {
+			return nil, errors.Wrapf(err, "failed to migrate old database structure for column persistent_keepalive")
+		}
+	}
+
+	if err := pm.db.AutoMigrate(&Device{}, &Peer{}); err != nil {
+		return nil, errors.WithMessage(err, "failed to migrate peer database")
+	}
+
+	if err := pm.initFromPhysicalInterface(); err != nil {
+		return nil, errors.WithMessagef(err, "unable to initialize peer manager")
+	}
+
+	// check if peers without device name exist (from version <= 1.0.3), if so assign them to the default device.
+	peers := make([]Peer, 0)
+	pm.db.Find(&peers)
+	for i := range peers {
+		if peers[i].DeviceName == "" {
+			peers[i].DeviceName = wg.Cfg.GetDefaultDeviceName()
+			pm.db.Save(&peers[i])
+		}
+	}
+
+	// validate and update existing peers if needed
+	for _, deviceName := range wg.Cfg.DeviceNames {
+		dev := pm.GetDevice(deviceName)
+		peers := pm.GetAllPeers(deviceName)
+		for i := range peers {
+			if err := pm.fixPeerDefaultData(&peers[i], &dev); err != nil {
+				return nil, errors.WithMessagef(err, "unable to fix peers for interface %s", deviceName)
+			}
+		}
+	}
+
+	return pm, nil
+}
+
+// initFromPhysicalInterface read all WireGuard peers from the WireGuard interface configuration. If a peer does not
+// exist in the local database, it gets created.
+func (m *PeerManager) initFromPhysicalInterface() error {
+	for _, deviceName := range m.wg.Cfg.DeviceNames {
+		peers, err := m.wg.GetPeerList(deviceName)
+		if err != nil {
+			return errors.Wrapf(err, "failed to get peer list for device %s", deviceName)
+		}
+		device, err := m.wg.GetDeviceInfo(deviceName)
+		if err != nil {
+			return errors.Wrapf(err, "failed to get device info for device %s", deviceName)
+		}
+		var ipAddresses []string
+		var mtu int
+		if m.wg.Cfg.ManageIPAddresses {
+			if ipAddresses, err = m.wg.GetIPAddress(deviceName); err != nil {
+				return errors.Wrapf(err, "failed to get ip address for device %s", deviceName)
+			}
+			if mtu, err = m.wg.GetMTU(deviceName); err != nil {
+				return errors.Wrapf(err, "failed to get MTU for device %s", deviceName)
+			}
+		}
+
+		// Check if device already exists in database, if not, create it
+		if err := m.validateOrCreateDevice(*device, ipAddresses, mtu); err != nil {
+			return errors.WithMessagef(err, "failed to validate device %s", device.Name)
+		}
+
+		// Check if entries already exist in database, if not, create them
+		for _, peer := range peers {
+			if err := m.validateOrCreatePeer(deviceName, peer); err != nil {
+				return errors.WithMessagef(err, "failed to validate peer %s for device %s", peer.PublicKey, deviceName)
+			}
+		}
+	}
+
+	return nil
+}
+
+// validateOrCreatePeer checks if the given WireGuard peer already exists in the database, if not, the peer entry will be created
+// assumption: server mode is used
+func (m *PeerManager) validateOrCreatePeer(device string, wgPeer wgtypes.Peer) error {
+	peer := Peer{}
+	m.db.Where("public_key = ?", wgPeer.PublicKey.String()).FirstOrInit(&peer)
+
+	dev := m.GetDevice(device)
+
+	if peer.PublicKey == "" { // peer not found, create
+		peer.UID = fmt.Sprintf("u%x", md5.Sum([]byte(wgPeer.PublicKey.String())))
+		if dev.Type == DeviceTypeServer {
+			peer.PublicKey = wgPeer.PublicKey.String()
+			peer.Identifier = "Autodetected Client (" + peer.PublicKey[0:8] + ")"
+		} else if dev.Type == DeviceTypeClient {
+			peer.PublicKey = wgPeer.PublicKey.String()
+			if wgPeer.Endpoint != nil {
+				peer.Endpoint = wgPeer.Endpoint.String()
+			}
+			peer.Identifier = "Autodetected Endpoint (" + peer.PublicKey[0:8] + ")"
+		}
+		if wgPeer.PresharedKey != (wgtypes.Key{}) {
+			peer.PresharedKey = wgPeer.PresharedKey.String()
+		}
+		peer.Email = "autodetected@example.com"
+		peer.UpdatedAt = time.Now()
+		peer.CreatedAt = time.Now()
+		IPs := make([]string, len(wgPeer.AllowedIPs)) // use allowed IP's as the peer IP's
+		for i, ip := range wgPeer.AllowedIPs {
+			IPs[i] = ip.String()
+		}
+		peer.SetIPAddresses(IPs...)
+		peer.DeviceName = device
+
+		res := m.db.Create(&peer)
+		if res.Error != nil {
+			return errors.Wrapf(res.Error, "failed to create autodetected peer %s", peer.PublicKey)
+		}
+	}
+
+	if peer.DeviceName == "" {
+		peer.DeviceName = device
+		res := m.db.Save(&peer)
+		if res.Error != nil {
+			return errors.Wrapf(res.Error, "failed to update autodetected peer %s", peer.PublicKey)
+		}
+	}
+
+	return nil
+}
+
+// validateOrCreateDevice checks if the given WireGuard device already exists in the database, if not, the peer entry will be created
+func (m *PeerManager) validateOrCreateDevice(dev wgtypes.Device, ipAddresses []string, mtu int) error {
+	device := Device{}
+	m.db.Where("device_name = ?", dev.Name).FirstOrInit(&device)
+
+	if device.PublicKey == "" { // device not found, create
+		device.Type = DeviceTypeServer // imported device, we assume that server mode is used
+		device.PublicKey = dev.PublicKey.String()
+		device.PrivateKey = dev.PrivateKey.String()
+		device.DeviceName = dev.Name
+		device.ListenPort = dev.ListenPort
+		device.FirewallMark = int32(dev.FirewallMark)
+		device.Mtu = 0
+		device.DefaultPersistentKeepalive = 16 // Default
+		device.IPsStr = strings.Join(ipAddresses, ", ")
+		if mtu == DefaultMTU {
+			mtu = 0
+		}
+		device.Mtu = mtu
+
+		res := m.db.Create(&device)
+		if res.Error != nil {
+			return errors.Wrapf(res.Error, "failed to create autodetected device")
+		}
+	}
+
+	if device.Type == "" {
+		device.Type = DeviceTypeServer // from version <= 1.0.3, only server mode devices were supported
+
+		res := m.db.Save(&device)
+		if res.Error != nil {
+			return errors.Wrapf(res.Error, "failed to update autodetected device")
+		}
+	}
+
+	return nil
+}
+
+// populatePeerData enriches the peer struct with WireGuard live data like last handshake, ...
+func (m *PeerManager) populatePeerData(peer *Peer) {
+	// Set config file
+	tmpCfg, _ := peer.GetConfigFile(m.GetDevice(peer.DeviceName))
+	peer.Config = string(tmpCfg)
+
+	// set data from WireGuard interface
+	peer.Peer, _ = m.wg.GetPeer(peer.DeviceName, peer.PublicKey)
+	peer.LastHandshake = "never"
+	peer.LastHandshakeTime = "Never connected, or user is disabled."
+	if peer.Peer != nil {
+		since := time.Since(peer.Peer.LastHandshakeTime)
+		sinceSeconds := int(since.Round(time.Second).Seconds())
+		sinceMinutes := sinceSeconds / 60
+		sinceSeconds -= sinceMinutes * 60
+
+		if sinceMinutes > 2*10080 { // 2 weeks
+			peer.LastHandshake = "a while ago"
+		} else if sinceMinutes > 10080 { // 1 week
+			peer.LastHandshake = "a week ago"
+		} else {
+			peer.LastHandshake = fmt.Sprintf("%02dm %02ds", sinceMinutes, sinceSeconds)
+		}
+		peer.LastHandshakeTime = peer.Peer.LastHandshakeTime.Format(time.UnixDate)
+	}
+	peer.IsOnline = false
+}
+
+// fixPeerDefaultData tries to fill all required fields for the given peer
+// also tries to migrate data if the database schema changed
+func (m *PeerManager) fixPeerDefaultData(peer *Peer, device *Device) error {
+	updatePeer := false
+
+	switch device.Type {
+	case DeviceTypeServer:
+		if peer.Endpoint == "" {
+			peer.Endpoint = device.DefaultEndpoint
+			updatePeer = true
+		}
+	case DeviceTypeClient:
+	}
+
+	if updatePeer {
+		return m.UpdatePeer(*peer)
+	}
+	return nil
+}
+
+// populateDeviceData enriches the device struct with WireGuard live data like interface information
+func (m *PeerManager) populateDeviceData(device *Device) {
+	// set data from WireGuard interface
+	device.Interface, _ = m.wg.GetDeviceInfo(device.DeviceName)
+}
+
+func (m *PeerManager) GetAllPeers(device string) []Peer {
+	peers := make([]Peer, 0)
+	m.db.Where("device_name = ?", device).Find(&peers)
+
+	for i := range peers {
+		m.populatePeerData(&peers[i])
+	}
+
+	return peers
+}
+
+func (m *PeerManager) GetActivePeers(device string) []Peer {
+	peers := make([]Peer, 0)
+	m.db.Where("device_name = ? AND deactivated_at IS NULL", device).Find(&peers)
+
+	for i := range peers {
+		m.populatePeerData(&peers[i])
+	}
+
+	return peers
+}
+
+func (m *PeerManager) GetFilteredAndSortedPeers(device, sortKey, sortDirection, search string) []Peer {
+	peers := make([]Peer, 0)
+	m.db.Where("device_name = ?", device).Find(&peers)
+
+	filteredPeers := make([]Peer, 0, len(peers))
+	for i := range peers {
+		m.populatePeerData(&peers[i])
+
+		if search == "" ||
+			strings.Contains(peers[i].Email, strings.ToLower(search)) ||
+			strings.Contains(peers[i].Identifier, search) ||
+			strings.Contains(peers[i].PublicKey, search) {
+			filteredPeers = append(filteredPeers, peers[i])
+		}
+	}
+
+	sortPeers(sortKey, sortDirection, filteredPeers)
+
+	return filteredPeers
+}
+
+func (m *PeerManager) GetSortedPeersForEmail(sortKey, sortDirection, email string) []Peer {
+	email = strings.ToLower(email)
+	peers := make([]Peer, 0)
+	m.db.Where("email = ?", email).Find(&peers)
+
+	for i := range peers {
+		m.populatePeerData(&peers[i])
+	}
+
+	sortPeers(sortKey, sortDirection, peers)
+
+	return peers
+}
+
+func sortPeers(sortKey string, sortDirection string, peers []Peer) {
+	sort.Slice(peers, func(i, j int) bool {
+		var sortValueLeft string
+		var sortValueRight string
+
+		switch sortKey {
+		case "id":
+			sortValueLeft = peers[i].Identifier
+			sortValueRight = peers[j].Identifier
+		case "pubKey":
+			sortValueLeft = peers[i].PublicKey
+			sortValueRight = peers[j].PublicKey
+		case "mail":
+			sortValueLeft = peers[i].Email
+			sortValueRight = peers[j].Email
+		case "ip":
+			sortValueLeft = peers[i].IPsStr
+			sortValueRight = peers[j].IPsStr
+		case "endpoint":
+			sortValueLeft = peers[i].Endpoint
+			sortValueRight = peers[j].Endpoint
+		case "handshake":
+			if peers[i].Peer == nil {
+				return true
+			} else if peers[j].Peer == nil {
+				return false
+			}
+			sortValueLeft = peers[i].Peer.LastHandshakeTime.Format(time.RFC3339)
+			sortValueRight = peers[j].Peer.LastHandshakeTime.Format(time.RFC3339)
+		}
+
+		if sortDirection == "asc" {
+			return sortValueLeft < sortValueRight
+		} else {
+			return sortValueLeft > sortValueRight
+		}
+	})
+}
+
+func (m *PeerManager) GetDevice(device string) Device {
+	dev := Device{}
+
+	m.db.Where("device_name = ?", device).First(&dev)
+	m.populateDeviceData(&dev)
+
+	return dev
+}
+
+func (m *PeerManager) GetPeerByKey(publicKey string) Peer {
+	peer := Peer{}
+	m.db.Where("public_key = ?", publicKey).FirstOrInit(&peer)
+	m.populatePeerData(&peer)
+	return peer
+}
+
+func (m *PeerManager) GetPeersByMail(mail string) []Peer {
+	mail = strings.ToLower(mail)
+	var peers []Peer
+	m.db.Where("email = ?", mail).Find(&peers)
+	for i := range peers {
+		m.populatePeerData(&peers[i])
+	}
+
+	return peers
+}
+
+// ---- Database helpers -----
+
+func (m *PeerManager) CreatePeer(peer Peer) error {
+	peer.UID = fmt.Sprintf("u%x", md5.Sum([]byte(peer.PublicKey)))
+	peer.UpdatedAt = time.Now()
+	peer.CreatedAt = time.Now()
+	peer.Email = strings.ToLower(peer.Email)
+
+	res := m.db.Create(&peer)
+	if res.Error != nil {
+		logrus.Errorf("failed to create peer: %v", res.Error)
+		return errors.Wrap(res.Error, "failed to create peer")
+	}
+
+	return nil
+}
+
+func (m *PeerManager) UpdatePeer(peer Peer) error {
+	peer.UpdatedAt = time.Now()
+	peer.Email = strings.ToLower(peer.Email)
+
+	res := m.db.Save(&peer)
+	if res.Error != nil {
+		logrus.Errorf("failed to update peer: %v", res.Error)
+		return errors.Wrap(res.Error, "failed to update peer")
+	}
+
+	return nil
+}
+
+func (m *PeerManager) DeletePeer(peer Peer) error {
+	res := m.db.Delete(&peer)
+	if res.Error != nil {
+		logrus.Errorf("failed to delete peer: %v", res.Error)
+		return errors.Wrap(res.Error, "failed to delete peer")
+	}
+
+	return nil
+}
+
+func (m *PeerManager) UpdateDevice(device Device) error {
+	device.UpdatedAt = time.Now()
+
+	res := m.db.Save(&device)
+	if res.Error != nil {
+		logrus.Errorf("failed to update device: %v", res.Error)
+		return errors.Wrap(res.Error, "failed to update device")
+	}
+
+	return nil
+}
+
+// ---- IP helpers ----
+
+func (m *PeerManager) GetAllReservedIps(device string) ([]string, error) {
+	reservedIps := make([]string, 0)
+	peers := m.GetAllPeers(device)
+	for _, user := range peers {
+		for _, cidr := range user.GetIPAddresses() {
+			if cidr == "" {
+				continue
+			}
+			ip, _, err := net.ParseCIDR(cidr)
+			if err != nil {
+				return nil, errors.Wrap(err, "failed to parse cidr")
+			}
+			reservedIps = append(reservedIps, ip.String())
+		}
+	}
+
+	dev := m.GetDevice(device)
+	for _, cidr := range dev.GetIPAddresses() {
+		if cidr == "" {
+			continue
+		}
+		ip, _, err := net.ParseCIDR(cidr)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse cidr")
+		}
+
+		reservedIps = append(reservedIps, ip.String())
+	}
+
+	return reservedIps, nil
+}
+
+func (m *PeerManager) IsIPReserved(device string, cidr string) bool {
+	reserved, err := m.GetAllReservedIps(device)
+	if err != nil {
+		return true // in case something failed, assume the ip is reserved
+	}
+	ip, ipnet, err := net.ParseCIDR(cidr)
+	if err != nil {
+		return true
+	}
+
+	// this two addresses are not usable
+	broadcastAddr := common.BroadcastAddr(ipnet).String()
+	networkAddr := ipnet.IP.String()
+	address := ip.String()
+
+	if address == broadcastAddr || address == networkAddr {
+		return true
+	}
+
+	for _, r := range reserved {
+		if address == r {
+			return true
+		}
+	}
+
+	return false
+}
+
+// GetAvailableIp search for an available ip in cidr against a list of reserved ips
+func (m *PeerManager) GetAvailableIp(device string, cidr string) (string, error) {
+	reserved, err := m.GetAllReservedIps(device)
+	if err != nil {
+		return "", errors.WithMessagef(err, "failed to get all reserved IP addresses for %s", device)
+	}
+	ip, ipnet, err := net.ParseCIDR(cidr)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to parse cidr")
+	}
+
+	// this two addresses are not usable
+	broadcastAddr := common.BroadcastAddr(ipnet).String()
+	networkAddr := ipnet.IP.String()
+
+	for ip := ip.Mask(ipnet.Mask); ipnet.Contains(ip); common.IncreaseIP(ip) {
+		ok := true
+		address := ip.String()
+		for _, r := range reserved {
+			if address == r {
+				ok = false
+				break
+			}
+		}
+		if ok && address != networkAddr && address != broadcastAddr {
+			netMask := "/32"
+			if common.IsIPv6(address) {
+				netMask = "/128"
+			}
+			return address + netMask, nil
+		}
+	}
+
+	return "", errors.New("no more available address from cidr")
+}

internal/wireguard/template.go

@@ -1,53 +1,20 @@
 package wireguard
 
-var (
-	ClientCfgTpl = `#{{ .Client.Identifier }}
-[Interface]
-Address = {{ .Client.IPsStr }}
-PrivateKey = {{ .Client.PrivateKey }}
-{{- if .Server.DNSStr}}
-DNS = {{ .Server.DNSStr }}
-{{- end}}
-{{- if ne .Server.Mtu 0}}
-MTU = {{.Server.Mtu}}
-{{- end}}
-
-[Peer]
-PublicKey = {{ .Server.PublicKey }}
-{{- if .Client.PresharedKey}}
-PresharedKey = {{ .Client.PresharedKey }}
-{{- end}}
-AllowedIPs = {{ .Client.AllowedIPsStr }}
-Endpoint = {{ .Server.Endpoint }}
-{{- if and (ne .Server.PersistentKeepalive 0) (not .Client.IgnorePersistentKeepalive)}}
-PersistentKeepalive = {{.Server.PersistentKeepalive}}
-{{- end}}
-`
-	DeviceCfgTpl = `# AUTOGENERATED FILE - DO NOT EDIT
-# Updated: {{ .Server.UpdatedAt }} / Created: {{ .Server.CreatedAt }}
-[Interface]
-{{- range .Server.IPs}}
-Address = {{ . }}
-{{- end}}
-ListenPort = {{ .Server.ListenPort }}
-PrivateKey = {{ .Server.PrivateKey }}
-{{- if ne .Server.Mtu 0}}
-MTU = {{.Server.Mtu}}
-{{- end}}
-PreUp = {{ .Server.PreUp }}
-PostUp = {{ .Server.PostUp }}
-PreDown = {{ .Server.PreDown }}
-PostDown = {{ .Server.PostDown }}
-
-{{range .Clients}}
-{{if not .DeactivatedAt -}}
-# {{.Identifier}} / {{.Email}} / Updated: {{.UpdatedAt}} / Created: {{.CreatedAt}}
-[Peer]
-PublicKey = {{ .PublicKey }}
-{{- if .PresharedKey}}
-PresharedKey = {{ .PresharedKey }}
-{{- end}}
-AllowedIPs = {{ StringsJoin .IPs ", " }}
-{{- end}}
-{{end}}`
+import (
+	"embed"
+	"strings"
+	"text/template"
 )
+
+//go:embed tpl/*
+var Templates embed.FS
+
+var templateCache *template.Template
+
+func init() {
+	var err error
+	templateCache, err = template.New("server").Funcs(template.FuncMap{"StringsJoin": strings.Join}).ParseFS(Templates, "tpl/*.tpl")
+	if err != nil {
+		panic(err)
+	}
+}

internal/wireguard/tpl/interface.tpl

@@ -0,0 +1,78 @@
+# AUTOGENERATED FILE - DO NOT EDIT
+# -WGP- Interface: {{ .Interface.DeviceName }} / Updated: {{ .Interface.UpdatedAt }} / Created: {{ .Interface.CreatedAt }}
+# -WGP- Interface display name: {{ .Interface.DisplayName }}
+# -WGP- Interface mode: {{ .Interface.Type }}
+# -WGP- PublicKey = {{ .Interface.PublicKey }}
+
+[Interface]
+
+# Core settings
+PrivateKey = {{ .Interface.PrivateKey }}
+Address = {{ .Interface.IPsStr }}
+
+# Misc. settings (optional)
+{{- if ne .Interface.ListenPort 0}}
+ListenPort = {{ .Interface.ListenPort }}
+{{- end}}
+{{- if ne .Interface.Mtu 0}}
+MTU = {{.Interface.Mtu}}
+{{- end}}
+{{- if and (ne .Interface.DNSStr "") (eq $.Interface.Type "client")}}
+DNS = {{ .Interface.DNSStr }}
+{{- end}}
+{{- if ne .Interface.FirewallMark 0}}
+FwMark = {{.Interface.FirewallMark}}
+{{- end}}
+{{- if ne .Interface.RoutingTable ""}}
+Table = {{.Interface.RoutingTable}}
+{{- end}}
+{{- if .Interface.SaveConfig}}
+SaveConfig = true
+{{- end}}
+
+# Interface hooks (optional)
+{{- if .Interface.PreUp}}
+PreUp = {{ .Interface.PreUp }}
+{{- end}}
+{{- if .Interface.PostUp}}
+PostUp = {{ .Interface.PostUp }}
+{{- end}}
+{{- if .Interface.PreDown}}
+PreDown = {{ .Interface.PreDown }}
+{{- end}}
+{{- if .Interface.PostDown}}
+PostDown = {{ .Interface.PostDown }}
+{{- end}}
+
+#
+# Peers
+#
+
+{{range .Peers}}
+{{- if not .DeactivatedAt}}
+# -WGP- Peer: {{.Identifier}} / Updated: {{.UpdatedAt}} / Created: {{.CreatedAt}}
+# -WGP- Peer email: {{.Email}}
+{{- if .PrivateKey}}
+# -WGP- PrivateKey: {{.PrivateKey}}
+{{- end}}
+[Peer]
+PublicKey = {{ .PublicKey }}
+{{- if .PresharedKey}}
+PresharedKey = {{ .PresharedKey }}
+{{- end}}
+{{- if eq $.Interface.Type "server"}}
+AllowedIPs = {{ .IPsStr }}{{if ne .AllowedIPsSrvStr ""}}, {{ .AllowedIPsSrvStr }}{{end}}
+{{- end}}
+{{- if eq $.Interface.Type "client"}}
+{{- if .AllowedIPsStr}}
+AllowedIPs = {{ .AllowedIPsStr }}
+{{- end}}
+{{- end}}
+{{- if and (ne .Endpoint "") (eq $.Interface.Type "client")}}
+Endpoint = {{ .Endpoint }}
+{{- end}}
+{{- if ne .PersistentKeepalive 0}}
+PersistentKeepalive = {{ .PersistentKeepalive }}
+{{- end}}
+{{- end}}
+{{end}}

internal/wireguard/tpl/peer.tpl

@@ -0,0 +1,30 @@
+# AUTOGENERATED FILE - PROVIDED BY WIREGUARD PORTAL
+# WireGuard configuration: {{ .Peer.Identifier }}
+# -WGP- PublicKey: {{ .Peer.PublicKey }}
+
+[Interface]
+
+# Core settings
+PrivateKey = {{ .Peer.PrivateKey }}
+Address = {{ .Peer.IPsStr }}
+
+# Misc. settings (optional)
+{{- if .Peer.DNSStr}}
+DNS = {{ .Peer.DNSStr }}
+{{- end}}
+{{- if ne .Peer.Mtu 0}}
+MTU = {{.Peer.Mtu}}
+{{- end}}
+
+[Peer]
+PublicKey = {{ .Interface.PublicKey }}
+Endpoint = {{ .Peer.Endpoint }}
+{{- if .Peer.AllowedIPsStr}}
+AllowedIPs = {{ .Peer.AllowedIPsStr }}
+{{- end}}
+{{- if .Peer.PresharedKey}}
+PresharedKey = {{ .Peer.PresharedKey }}
+{{- end}}
+{{- if ne .Peer.PersistentKeepalive 0}}
+PersistentKeepalive = {{.Peer.PersistentKeepalive}}
+{{- end}}

scripts/docker-healthcheck.sh

@@ -1,7 +0,0 @@
-#!/bin/bash
-
-set -e
-
-goss -g /app/goss/wgportal/goss.yaml validate --format json_oneline
-
-exit 0

scripts/goss/wgportal/goss-wait.yaml

@@ -1,3 +0,0 @@
-process:
-  wgportal:
-    running: true

scripts/goss/wgportal/goss.yaml

@@ -1,3 +0,0 @@
-process:
-  wgportal:
-    running: true

scripts/wg-portal.env

@@ -1,6 +1,9 @@
 LISTENING_ADDRESS=:8080
+WG_DEVICES=wg0
+WG_DEFAULT_DEVICE=wg0
+WG_CONFIG_PATH=/etc/wireguard
 EXTERNAL_URL=https://vpn.company.com
 WEBSITE_TITLE=WireGuard VPN
 COMPANY_NAME=Your Company Name
-ADMIN_USER=admin
+ADMIN_USER=admin@wgportal.local
 ADMIN_PASS=supersecret