fix potentially unsafe external link

.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

.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 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 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 +4,7 @@
 ######-
 # 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
 
 RUN mkdir /build
 
@@ -29,7 +29,7 @@ FROM debian:buster
 ENV TZ=Europe/Vienna
 
 # GOSS for container health checks
-ENV GOSS_VERSION v0.3.14
+ENV GOSS_VERSION v0.3.16
 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/*; \
@@ -38,7 +38,6 @@ RUN apt-get update && apt-get upgrade -y && \
         goss --version
 
 COPY --from=builder /build/dist/wg-portal-amd64 /app/wgportal
-COPY --from=builder /build/dist/assets /app/assets
 COPY --from=builder /build/scripts /app/
 
 # Set the Current Working Directory inside the container

Makefile

@@ -11,12 +11,10 @@ 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)
 
@@ -59,4 +57,4 @@ $(BUILDDIR)/%-arm64: cmd/%/main.go dep phony
 
 # 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" -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). 
+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 the VPN 
 interface. 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, 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 +24,20 @@ 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
  
 ![Screenshot](screenshot.png)
 
 ## Setup
 
 ### 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:
+Docker Compose snippet with some sample configuration values:
 ```
 version: '3.6'
 services:
@@ -55,19 +58,20 @@ services:
       - 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
       - EMAIL_HOST=10.10.10.10
       - EMAIL_PORT=25
+      - 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 backup 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/common/configuration.go](internal/common/configuration.go#L57).
 
 ### Standalone
 For a standalone application, use the Makefile provided in the repository to build the application.
@@ -79,7 +83,7 @@ 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

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;

assets/tpl/admin_create_clients.html

@@ -53,7 +53,7 @@
             }
         }).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_interface.html

@@ -54,7 +54,7 @@
             <h3>Client's global configuration</h3>
             <div class="form-row">
                 <div class="form-group required col-md-12">
-                    <label for="inputPublicEndpoint">Public Enpoint for Clients</label>
+                    <label for="inputPublicEndpoint">Public Endpoint for Clients</label>
                     <input type="text" name="endpoint" class="form-control" id="inputPublicEndpoint" placeholder="vpn.company.com:51820" value="{{.Device.Endpoint}}">
                 </div>
             </div>

assets/tpl/admin_edit_user.html

@@ -0,0 +1,87 @@
+<!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">
+        {{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}}">
+            </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}}">
+            </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}}">
+            </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">
+            </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

@@ -84,13 +84,11 @@
         </div>
         <div class="mt-4 row">
             <div class="col-sm-10 col-12">
-                <h2 class="mt-2">Current VPN Users</h2>
+                <h2 class="mt-2">Current VPN Peers</h2>
             </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>
-                {{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/createldap" title="Add multiple peers" class="btn btn-primary"><i class="fa fa-fw fa-user-plus"></i></a>
+                <a href="/admin/peer/create" title="Manually 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">
@@ -98,11 +96,11 @@
                 <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>
+                    <th scope="col"><a href="?sort=mail">E-Mail <i class="fa fa-fw {{.Session.GetSortIcon "peers" "mail"}}"></i></a></th>
+                    <th scope="col"><a href="?sort=ip">IP's <i class="fa fa-fw {{.Session.GetSortIcon "peers" "ip"}}"></i></a></th>
+                    <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>
@@ -144,15 +142,14 @@
                                         <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 $p.User}}
+                                                    <p>No user information available...</p>
                                                 {{else}}
                                                     <ul>
-                                                        <li>Firstname: {{$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 $p.LdapUser.RawLdapData.Attributes "department"}}</li>
+                                                        <li>Firstname: {{$p.User.Firstname}}</li>
+                                                        <li>Lastname: {{$p.User.Lastname}}</li>
+                                                        <li>Phone: {{$p.User.Phone}}</li>
+                                                        <li>Mail: {{$p.User.Email}}</li>
                                                     </ul>
                                                 {{end}}
                                                 <h4>Connection / Traffic</h4>

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

@@ -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

@@ -20,9 +20,8 @@
             <div class="card-body">
                 <form class="form-signin" method="post">
                     <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>

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 +7,28 @@
     <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>
         {{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>

assets/tpl/user_index.html

@@ -21,11 +21,11 @@
                 <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>
@@ -58,15 +58,14 @@
                                         <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 $p.User}}
+                                                    <p>No user information available...</p>
                                                 {{else}}
                                                     <ul>
-                                                        <li>Firstname: {{$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: {{$p.User.Firstname}}</li>
+                                                        <li>Lastname: {{$p.User.Lastname}}</li>
+                                                        <li>Phone: {{$p.User.Phone}}</li>
+                                                        <li>Mail: {{$p.User.Email}}</li>
                                                     </ul>
                                                 {{end}}
                                                 <h4>Traffic</h4>

cmd/wg-portal/main.go

@@ -1,19 +1,100 @@
 package main
 
 import (
+	"context"
+	"io/ioutil"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
 	"github.com/h44z/wg-portal/internal/server"
-	log "github.com/sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 )
 
+var Version = "unknown (local build)"
+
 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]...", Version)
+
+	// Context for clean shutdown
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
 
 	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
 }

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

@@ -1,6 +1,6 @@
 module github.com/h44z/wg-portal
 
-go 1.14
+go 1.16
 
 require (
 	github.com/gin-contrib/sessions v0.0.3
@@ -11,11 +11,17 @@ require (
 	github.com/jordan-wright/email v4.0.1-0.20200917010138-e1c00e156980+incompatible
 	github.com/kelseyhightower/envconfig v1.4.0
 	github.com/milosgajdos/tenus v0.0.3
+	github.com/mitchellh/gox v1.0.1 // indirect
+	github.com/necrose99/gox v0.4.0 // indirect
+	github.com/pkg/errors v0.9.1
 	github.com/sirupsen/logrus v1.7.0
 	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
 	github.com/tatsushid/go-fastping v0.0.0-20160109021039-d7bb493dee3e
+	github.com/toorop/gin-logrus v0.0.0-20200831135515-d2ee50d38dae
+	golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20200609130330-bd2cb7843e1b
 	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
+	gorm.io/driver/mysql v1.0.4
 	gorm.io/driver/sqlite v1.1.3
-	gorm.io/gorm v1.20.5
+	gorm.io/gorm v1.20.12
 )

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 +1,203 @@
+package ldap
+
+import (
+	"crypto/tls"
+	"fmt"
+	"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}
+	if provider.config.DisabledAttribute != "" {
+		attrs = append(attrs, provider.config.DisabledAttribute)
+	}
+	searchRequest := ldap.NewSearchRequest(
+		provider.config.BaseDN,
+		ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
+		fmt.Sprintf("(&(objectClass=%s)(%s=%s))", provider.config.UserClass, provider.config.EmailAttribute, username),
+		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))
+	}
+
+	userDN := sr.Entries[0].DN
+
+	// Check if user is disabled, if so deny login
+	if provider.config.DisabledAttribute != "" {
+		uac := sr.Entries[0].GetAttributeValue(provider.config.DisabledAttribute)
+		switch provider.config.Type {
+		case ldapconfig.TypeActiveDirectory:
+			if ldapconfig.IsActiveDirectoryUserDisabled(uac) {
+				return "", errors.New("user is disabled")
+			}
+		case ldapconfig.TypeOpenLDAP:
+			if ldapconfig.IsOpenLdapUserDisabled(uac) {
+				return "", errors.New("user is disabled")
+			}
+		}
+	}
+
+	// Bind as the user to verify their password
+	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}
+	if provider.config.DisabledAttribute != "" {
+		attrs = append(attrs, provider.config.DisabledAttribute)
+	}
+	searchRequest := ldap.NewSearchRequest(
+		provider.config.BaseDN,
+		ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
+		fmt.Sprintf("(&(objectClass=%s)(%s=%s))", provider.config.UserClass, provider.config.EmailAttribute, username),
+		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) {
+	conn, err := ldap.DialURL(provider.config.URL)
+	if err != nil {
+		return nil, err
+	}
+
+	if provider.config.StartTLS {
+		// Reconnect with TLS
+		err = conn.StartTLS(&tls.Config{InsecureSkipVerify: true})
+		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 +1,193 @@
+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/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 *users.Config) (*Provider, error) {
+	p := &Provider{}
+
+	var err error
+	p.db, err = users.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 {
+	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 = string(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 = string(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

@@ -1,22 +1,22 @@
 package common
 
 import (
-	"errors"
 	"os"
 	"reflect"
 	"runtime"
 
-	"github.com/h44z/wg-portal/internal/wireguard"
-
 	"github.com/h44z/wg-portal/internal/ldap"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/h44z/wg-portal/internal/wireguard"
 	"github.com/kelseyhightower/envconfig"
-	log "github.com/sirupsen/logrus"
+	"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 to yaml annotation to store the data in a struct.
+// 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)
 
@@ -30,24 +30,24 @@ func loadConfigFile(cfg interface{}, filename string) error {
 
 	f, err := os.Open(filename)
 	if err != nil {
-		return err
+		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 err
+		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.
+// 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 errors.Wrap(err, "failed to process environment config")
 	}
 
 	return nil
@@ -55,22 +55,21 @@ func loadConfigEnv(cfg interface{}) error {
 
 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
+		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"`
+		LdapEnabled       bool   `yaml:"ldapEnabled" envconfig:"LDAP_ENABLED"`
 	} `yaml:"core"`
-	Email          MailConfig       `yaml:"email"`
-	LDAP           ldap.Config      `yaml:"ldap"`
-	WG             wireguard.Config `yaml:"wg"`
-	AdminLdapGroup string           `yaml:"adminLdapGroup" envconfig:"ADMIN_LDAP_GROUP"`
+	Database users.Config     `yaml:"database"`
+	Email    MailConfig       `yaml:"email"`
+	LDAP     ldap.Config      `yaml:"ldap"`
+	WG       wireguard.Config `yaml:"wg"`
 }
 
 func NewConfig() *Config {
@@ -82,18 +81,31 @@ func NewConfig() *Config {
 	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.Core.AdminUser = "admin@wgportal.local"
+	cfg.Core.AdminPassword = "wgportal"
+	cfg.Core.LdapEnabled = false
+
+	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.Type = "AD"
+	cfg.LDAP.UserClass = "organizationalPerson"
+	cfg.LDAP.EmailAttribute = "mail"
+	cfg.LDAP.FirstNameAttribute = "givenName"
+	cfg.LDAP.LastNameAttribute = "sn"
+	cfg.LDAP.PhoneAttribute = "telephoneNumber"
+	cfg.LDAP.GroupMemberAttribute = "memberOf"
+	cfg.LDAP.DisabledAttribute = "userAccountControl"
+	cfg.LDAP.AdminLdapGroup = "CN=WireGuardAdmins,OU=_O_IT,DC=COMPANY,DC=LOCAL"
+
 	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
 
@@ -104,15 +116,15 @@ func NewConfig() *Config {
 	}
 	err := loadConfigFile(cfg, cfgFile)
 	if err != nil {
-		log.Warnf("unable to load config.yml file: %v, using default configuration...", err)
+		logrus.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)
+		logrus.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.")
+		logrus.Warnf("managing IP addresses only works on linux, feature disabled...")
 		cfg.WG.ManageIPAddresses = false
 	}
 

internal/common/email.go

@@ -26,7 +26,7 @@ type MailAttachment struct {
 	Embedded    bool
 }
 
-// SendEmailWithAttachments sends a mail with attachments.
+// SendEmailWithAttachments sends a mail with optional attachments.
 func SendEmailWithAttachments(cfg MailConfig, sender, replyTo, subject, body string, htmlBody string, receivers []string, attachments []MailAttachment) error {
 	e := email.NewEmail()
 

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))
@@ -53,6 +55,7 @@ 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, ", ")
 }

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"`
+	BaseDN   string `yaml:"dn" envconfig:"LDAP_BASEDN"`
+	BindUser string `yaml:"user" envconfig:"LDAP_USER"`
+	BindPass string `yaml:"pass" envconfig:"LDAP_PASSWORD"`
+
+	Type                 Type   `yaml:"typ" envconfig:"LDAP_TYPE"` // AD for active directory, OpenLDAP for OpenLDAP
+	UserClass            string `yaml:"userClass" envconfig:"LDAP_USER_CLASS"`
+	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"`
+	DisabledAttribute    string `yaml:"attrDisabled" envconfig:"LDAP_ATTR_DISABLED"`
+
+	AdminLdapGroup string `yaml:"adminGroup" envconfig:"LDAP_ADMIN_GROUP"` // Members of this group receive admin rights in WG-Portal
+}

internal/ldap/ldap.go

@@ -1,9 +1,112 @@
 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"
+	"fmt"
+	"strconv"
+
+	"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) {
+	conn, err := ldap.DialURL(cfg.URL)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to connect to LDAP")
+	}
+
+	if cfg.StartTLS {
+		// Reconnect with TLS
+		err = conn.StartTLS(&tls.Config{InsecureSkipVerify: true})
+		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}
+	if cfg.DisabledAttribute != "" {
+		attrs = append(attrs, cfg.DisabledAttribute)
+	}
+	searchRequest := ldap.NewSearchRequest(
+		cfg.BaseDN,
+		ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
+		fmt.Sprintf("(objectClass=%s)", cfg.UserClass), 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
+}
+
+func IsActiveDirectoryUserDisabled(userAccountControl string) bool {
+	if userAccountControl == "" {
+		return false
+	}
+
+	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
+}
+
+func IsOpenLdapUserDisabled(pwdAccountLockedTime string) bool {
+	if pwdAccountLockedTime != "" {
+		return true
+	}
+
+	return false
 }

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/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/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 +4,14 @@ import (
 	"net/http"
 	"strings"
 
-	log "github.com/sirupsen/logrus"
-
 	"github.com/gin-gonic/gin"
+	"github.com/h44z/wg-portal/internal/authentication"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/sirupsen/logrus"
 )
 
 func (s *Server) GetLogin(c *gin.Context) {
-	currentSession := s.getSessionData(c)
+	currentSession := GetSessionData(c)
 	if currentSession.LoggedIn {
 		c.Redirect(http.StatusSeeOther, "/") // already logged in
 	}
@@ -34,7 +35,7 @@ func (s *Server) GetLogin(c *gin.Context) {
 }
 
 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 +51,84 @@ 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 user database for an matching entry
+	var loginProvider authentication.AuthProvider
+	email := ""
+	user := s.users.GetUser(username) // retrieve active candidate user from db
+	if user != nil {                  // existing user
+		loginProvider = s.auth.GetProvider(string(user.Source))
+		if loginProvider == nil {
+			s.GetHandleError(c, http.StatusInternalServerError, "login error", "login provider unavailable")
+			return
+		}
+		authEmail, err := loginProvider.Login(&authentication.AuthContext{
+			Username: username,
+			Password: password,
+		})
+		if err == nil {
+			email = authEmail
+		}
+	} else { // possible new 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
+			}
+
+			email = authEmail
+			loginProvider = provider
+
+			// create new user in the database (or reactivate him)
+			userData, err := loginProvider.GetUserModel(&authentication.AuthContext{
+				Username: email,
+			})
+			if err != nil {
+				s.GetHandleError(c, http.StatusInternalServerError, "login error", err.Error())
+				return
+			}
+			if err := s.CreateUser(users.User{
+				Email:     userData.Email,
+				Source:    users.UserSource(loginProvider.GetName()),
+				IsAdmin:   userData.IsAdmin,
+				Firstname: userData.Firstname,
+				Lastname:  userData.Lastname,
+				Phone:     userData.Phone,
+			}); err != nil {
+				s.GetHandleError(c, http.StatusInternalServerError, "login error", "failed to update user data")
+				return
+			}
+
+			user = s.users.GetUser(username)
+			break
+		}
 	}
 
-	// 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 email == "" || loginProvider == nil || 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
 
 	// 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); 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
 	}
@@ -120,14 +136,14 @@ 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
 	}

internal/server/handlers_common.go

@@ -4,6 +4,8 @@ import (
 	"net/http"
 	"strconv"
 
+	"github.com/pkg/errors"
+
 	"github.com/gin-gonic/gin"
 )
 
@@ -15,7 +17,7 @@ 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(),
 	})
 }
@@ -29,90 +31,88 @@ func (s *Server) GetIndex(c *gin.Context) {
 		Device  Device
 	}{
 		Route:   c.Request.URL.Path,
-		Alerts:  s.getFlashes(c),
-		Session: s.getSessionData(c),
+		Alerts:  GetFlashes(c),
+		Session: GetSessionData(c),
 		Static:  s.getStaticData(),
-		Device:  s.users.GetDevice(),
+		Device:  s.peers.GetDevice(),
 	})
 }
 
 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)
+	device := s.peers.GetDevice()
+	users := s.peers.GetFilteredAndSortedPeers(currentSession.SortedBy["peers"], currentSession.SortDirection["peers"], currentSession.Search["peers"])
 
 	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      string
+		Alerts     []FlashData
+		Session    SessionData
+		Static     StaticData
+		Peers      []Peer
+		TotalPeers int
+		Device     Device
 	}{
-		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,
+		Route:      c.Request.URL.Path,
+		Alerts:     GetFlashes(c),
+		Session:    currentSession,
+		Static:     s.getStaticData(),
+		Peers:      users,
+		TotalPeers: len(s.peers.GetAllPeers()),
+		Device:     device,
 	})
 }
 
 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
 		}
@@ -120,20 +120,20 @@ func (s *Server) GetUserIndex(c *gin.Context) {
 		return
 	}
 
-	device := s.users.GetDevice()
-	users := s.users.GetSortedUsersForEmail(currentSession.SortedBy, currentSession.SortDirection, currentSession.Email)
+	device := s.peers.GetDevice()
+	users := 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
+		Peers      []Peer
 		TotalPeers int
 		Device     Device
 	}{
 		Route:      c.Request.URL.Path,
-		Alerts:     s.getFlashes(c),
+		Alerts:     GetFlashes(c),
 		Session:    currentSession,
 		Static:     s.getStaticData(),
 		Peers:      users,
@@ -143,45 +143,45 @@ func (s *Server) GetUserIndex(c *gin.Context) {
 }
 
 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()
 		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

@@ -9,8 +9,8 @@ import (
 )
 
 func (s *Server) GetAdminEditInterface(c *gin.Context) {
-	device := s.users.GetDevice()
-	users := s.users.GetAllUsers()
+	device := s.peers.GetDevice()
+	users := s.peers.GetAllPeers()
 
 	currentSession, err := s.setFormInSession(c, device)
 	if err != nil {
@@ -23,12 +23,12 @@ func (s *Server) GetAdminEditInterface(c *gin.Context) {
 		Alerts       []FlashData
 		Session      SessionData
 		Static       StaticData
-		Peers        []User
+		Peers        []Peer
 		Device       Device
 		EditableKeys bool
 	}{
 		Route:        c.Request.URL.Path,
-		Alerts:       s.getFlashes(c),
+		Alerts:       GetFlashes(c),
 		Session:      currentSession,
 		Static:       s.getStaticData(),
 		Peers:        users,
@@ -38,14 +38,14 @@ func (s *Server) GetAdminEditInterface(c *gin.Context) {
 }
 
 func (s *Server) PostAdminEditInterface(c *gin.Context) {
-	currentSession := s.getSessionData(c)
+	currentSession := GetSessionData(c)
 	var formDevice Device
 	if currentSession.FormData != nil {
 		formDevice = currentSession.FormData.(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
 	}
@@ -58,19 +58,19 @@ func (s *Server) PostAdminEditInterface(c *gin.Context) {
 	formDevice.DNSStr = common.ListToString(formDevice.DNS)
 
 	// 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
 	}
@@ -79,7 +79,7 @@ func (s *Server) PostAdminEditInterface(c *gin.Context) {
 	err = s.WriteWireGuardConfigFile()
 	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
 	}
@@ -88,27 +88,27 @@ func (s *Server) PostAdminEditInterface(c *gin.Context) {
 	if s.config.WG.ManageIPAddresses {
 		if err := s.wg.SetIPAddress(formDevice.IPs); 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 {
 			_ = 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)
+	device := s.peers.GetDevice()
+	users := s.peers.GetActivePeers()
+	cfg, err := device.GetConfigFile(users)
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "ConfigFile error", err.Error())
 		return
@@ -122,19 +122,19 @@ func (s *Server) GetInterfaceConfig(c *gin.Context) {
 }
 
 func (s *Server) GetApplyGlobalConfig(c *gin.Context) {
-	device := s.users.GetDevice()
-	users := s.users.GetAllUsers()
+	device := s.peers.GetDevice()
+	users := s.peers.GetAllPeers()
 
 	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")
+		if err := s.peers.UpdatePeer(user); err != nil {
+			SetFlashMessage(c, err.Error(), "danger")
 			c.Redirect(http.StatusSeeOther, "/admin/device/edit")
 		}
 	}
 
-	s.setFlashMessage(c, "Allowed ip's updated for all clients.", "success")
+	SetFlashMessage(c, "Allowed IP's updated for all clients.", "success")
 	c.Redirect(http.StatusSeeOther, "/admin/device/edit")
 	return
 }

internal/server/handlers_peer.go

@@ -10,8 +10,8 @@ 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/sirupsen/logrus"
 	"github.com/tatsushid/go-fastping"
 )
 
@@ -21,10 +21,10 @@ type LdapCreateForm struct {
 }
 
 func (s *Server) GetAdminEditPeer(c *gin.Context) {
-	device := s.users.GetDevice()
-	user := s.users.GetUserByKey(c.Query("pkey"))
+	device := s.peers.GetDevice()
+	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
@@ -35,66 +35,66 @@ func (s *Server) GetAdminEditPeer(c *gin.Context) {
 		Alerts       []FlashData
 		Session      SessionData
 		Static       StaticData
-		Peer         User
+		Peer         Peer
 		Device       Device
 		EditableKeys bool
 	}{
 		Route:        c.Request.URL.Path,
-		Alerts:       s.getFlashes(c),
+		Alerts:       GetFlashes(c),
 		Session:      currentSession,
 		Static:       s.getStaticData(),
-		Peer:         currentSession.FormData.(User),
+		Peer:         currentSession.FormData.(Peer),
 		Device:       device,
 		EditableKeys: s.config.Core.EditableKeys,
 	})
 }
 
 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 Peer
 	if currentSession.FormData != nil {
-		formUser = currentSession.FormData.(User)
+		formPeer = currentSession.FormData.(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.IPs = common.ParseStringList(formPeer.IPsStr)
+	formPeer.AllowedIPs = common.ParseStringList(formPeer.AllowedIPsStr)
+	formPeer.IPsStr = common.ListToString(formPeer.IPs)
+	formPeer.AllowedIPsStr = common.ListToString(formPeer.AllowedIPs)
 
 	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()
+	device := s.peers.GetDevice()
 
-	currentSession, err := s.setNewUserFormInSession(c)
+	currentSession, err := s.setNewPeerFormInSession(c)
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "Session error", err.Error())
 		return
@@ -104,53 +104,53 @@ func (s *Server) GetAdminCreatePeer(c *gin.Context) {
 		Alerts       []FlashData
 		Session      SessionData
 		Static       StaticData
-		Peer         User
+		Peer         Peer
 		Device       Device
 		EditableKeys bool
 	}{
 		Route:        c.Request.URL.Path,
-		Alerts:       s.getFlashes(c),
+		Alerts:       GetFlashes(c),
 		Session:      currentSession,
 		Static:       s.getStaticData(),
-		Peer:         currentSession.FormData.(User),
+		Peer:         currentSession.FormData.(Peer),
 		Device:       device,
 		EditableKeys: s.config.Core.EditableKeys,
 	})
 }
 
 func (s *Server) PostAdminCreatePeer(c *gin.Context) {
-	currentSession := s.getSessionData(c)
-	var formUser User
+	currentSession := GetSessionData(c)
+	var formPeer Peer
 	if currentSession.FormData != nil {
-		formUser = currentSession.FormData.(User)
+		formPeer = currentSession.FormData.(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.IPs = common.ParseStringList(formPeer.IPsStr)
+	formPeer.AllowedIPs = common.ParseStringList(formPeer.AllowedIPsStr)
+	formPeer.IPsStr = common.ListToString(formPeer.IPs)
+	formPeer.AllowedIPsStr = common.ListToString(formPeer.AllowedIPs)
 
 	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(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")
 }
 
@@ -166,29 +166,29 @@ func (s *Server) GetAdminCreateLdapPeers(c *gin.Context) {
 		Alerts   []FlashData
 		Session  SessionData
 		Static   StaticData
-		Users    []*ldap.UserCacheHolderEntry
+		Users    []users.User
 		FormData LdapCreateForm
 		Device   Device
 	}{
 		Route:    c.Request.URL.Path,
-		Alerts:   s.getFlashes(c),
+		Alerts:   GetFlashes(c),
 		Session:  currentSession,
 		Static:   s.getStaticData(),
-		Users:    s.ldapUsers.GetSortedUsers("sn", "asc"),
+		Users:    s.users.GetFilteredAndSortedUsers("lastname", "asc", ""),
 		FormData: currentSession.FormData.(LdapCreateForm),
-		Device:   s.users.GetDevice(),
+		Device:   s.peers.GetDevice(),
 	})
 }
 
 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
 	}
@@ -196,42 +196,42 @@ 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.users.GetUser(emails[i]) == nil {
 			_ = 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(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 {
+	currentUser := s.peers.GetPeerByKey(c.Query("pkey"))
+	if err := s.DeletePeer(currentUser); err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "Deletion error", err.Error())
 		return
 	}
-	s.setFlashMessage(c, "user deleted successfully", "success")
+	SetFlashMessage(c, "user 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)
+	user := s.peers.GetPeerByKey(c.Query("pkey"))
+	currentSession := GetSessionData(c)
 	if !currentSession.IsAdmin && user.Email != currentSession.Email {
 		s.GetHandleError(c, http.StatusUnauthorized, "No permissions", "You don't have permissions to view this resource!")
 		return
@@ -247,14 +247,14 @@ 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)
+	user := s.peers.GetPeerByKey(c.Query("pkey"))
+	currentSession := GetSessionData(c)
 	if !currentSession.IsAdmin && user.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 := user.GetConfigFile(s.peers.GetDevice())
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "ConfigFile error", err.Error())
 		return
@@ -266,14 +266,14 @@ func (s *Server) GetPeerConfig(c *gin.Context) {
 }
 
 func (s *Server) GetPeerConfigMail(c *gin.Context) {
-	user := s.users.GetUserByKey(c.Query("pkey"))
-	currentSession := s.getSessionData(c)
+	user := s.peers.GetPeerByKey(c.Query("pkey"))
+	currentSession := GetSessionData(c)
 	if !currentSession.IsAdmin && user.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 := user.GetConfigFile(s.peers.GetDevice())
 	if err != nil {
 		s.GetHandleError(c, http.StatusInternalServerError, "ConfigFile error", err.Error())
 		return
@@ -286,7 +286,7 @@ func (s *Server) GetPeerConfigMail(c *gin.Context) {
 	// Apply mail template
 	var tplBuff bytes.Buffer
 	if err := s.mailTpl.Execute(&tplBuff, struct {
-		Client        User
+		Client        Peer
 		QrcodePngName string
 		PortalUrl     string
 	}{
@@ -319,13 +319,13 @@ func (s *Server) GetPeerConfigMail(c *gin.Context) {
 		return
 	}
 
-	s.setFlashMessage(c, "mail sent successfully", "success")
+	SetFlashMessage(c, "mail sent successfully", "success")
 	c.Redirect(http.StatusSeeOther, "/admin")
 }
 
 func (s *Server) GetPeerStatus(c *gin.Context) {
-	user := s.users.GetUserByKey(c.Query("pkey"))
-	currentSession := s.getSessionData(c)
+	user := s.peers.GetPeerByKey(c.Query("pkey"))
+	currentSession := GetSessionData(c)
 	if !currentSession.IsAdmin && user.Email != currentSession.Email {
 		s.GetHandleError(c, http.StatusUnauthorized, "No permissions", "You don't have permissions to view this resource!")
 		return

internal/server/handlers_user.go

@@ -0,0 +1,230 @@
+package server
+
+import (
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/h44z/wg-portal/internal/users"
+	"golang.org/x/crypto/bcrypt"
+	"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", struct {
+		Route      string
+		Alerts     []FlashData
+		Session    SessionData
+		Static     StaticData
+		Users      []users.User
+		TotalUsers int
+		Device     Device
+	}{
+		Route:      c.Request.URL.Path,
+		Alerts:     GetFlashes(c),
+		Session:    currentSession,
+		Static:     s.getStaticData(),
+		Users:      dbUsers,
+		TotalUsers: len(s.users.GetUsers()),
+		Device:     s.peers.GetDevice(),
+	})
+}
+
+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", struct {
+		Route   string
+		Alerts  []FlashData
+		Session SessionData
+		Static  StaticData
+		User    users.User
+		Device  Device
+		Epoch   time.Time
+	}{
+		Route:   c.Request.URL.Path,
+		Alerts:  GetFlashes(c),
+		Session: currentSession,
+		Static:  s.getStaticData(),
+		User:    currentSession.FormData.(users.User),
+		Device:  s.peers.GetDevice(),
+	})
+}
+
+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
+	}
+
+	if formUser.Password != "" {
+		hashedPassword, err := bcrypt.GenerateFromPassword([]byte(formUser.Password), bcrypt.DefaultCost)
+		if err != nil {
+			_ = s.updateFormInSession(c, formUser)
+			SetFlashMessage(c, "failed to hash admin password", "danger")
+			c.Redirect(http.StatusSeeOther, "/admin/users/edit?pkey="+urlEncodedKey+"&formerr=bind")
+			return
+		}
+		formUser.Password = string(hashedPassword)
+	} else {
+		formUser.Password = currentUser.Password
+	}
+
+	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", struct {
+		Route   string
+		Alerts  []FlashData
+		Session SessionData
+		Static  StaticData
+		User    users.User
+		Device  Device
+		Epoch   time.Time
+	}{
+		Route:   c.Request.URL.Path,
+		Alerts:  GetFlashes(c),
+		Session: currentSession,
+		Static:  s.getStaticData(),
+		User:    currentSession.FormData.(users.User),
+		Device:  s.peers.GetDevice(),
+	})
+}
+
+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 != "" {
+		hashedPassword, err := bcrypt.GenerateFromPassword([]byte(formUser.Password), bcrypt.DefaultCost)
+		if err != nil {
+			SetFlashMessage(c, "failed to hash admin password", "danger")
+			c.Redirect(http.StatusSeeOther, "/admin/users/create?formerr=bind")
+			return
+		}
+		formUser.Password = string(hashedPassword)
+	} else {
+		_ = 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); 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

@@ -4,31 +4,147 @@ import (
 	"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"]) {
-			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)
+		for i := range ldapUsers {
+			// prefilter
+			if ldapUsers[i].Attributes[s.config.LDAP.EmailAttribute] == "" ||
+				ldapUsers[i].Attributes[s.config.LDAP.FirstNameAttribute] == "" ||
+				ldapUsers[i].Attributes[s.config.LDAP.LastNameAttribute] == "" {
+				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)
+			}
+
+			// check if user should be deactivated
+			ldapDeactivated := false
+			switch s.config.LDAP.Type {
+			case ldap.TypeActiveDirectory:
+				ldapDeactivated = ldap.IsActiveDirectoryUserDisabled(ldapUsers[i].Attributes[s.config.LDAP.DisabledAttribute])
+			case ldap.TypeOpenLDAP:
+				ldapDeactivated = ldap.IsOpenLdapUserDisabled(ldapUsers[i].Attributes[s.config.LDAP.DisabledAttribute])
+			}
+
+			// check if user has been disabled in ldap, update peers accordingly
+			if ldapDeactivated != user.DeletedAt.Valid {
+				if ldapDeactivated {
+					// disable all peers for the given user
+					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: %v", peer.PublicKey, err)
+						}
+					}
+				} else {
+					// 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]) {
+				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
+				}
+
+				if ldapDeactivated {
+					if err = s.users.DeleteUser(user); err != nil {
+						logrus.Errorf("failed to delete deactivated user %s in database: %v", user.Email, err)
+						continue
+					}
+				}
 			}
 		}
 	}
-	return nil
+	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 != ldapData.Attributes[s.config.LDAP.EmailAttribute] {
+		return true
+	}
+	if user.Phone != ldapData.Attributes[s.config.LDAP.PhoneAttribute] {
+		return true
+	}
+
+	ldapDeactivated := false
+	switch s.config.LDAP.Type {
+	case ldap.TypeActiveDirectory:
+		ldapDeactivated = ldap.IsActiveDirectoryUserDisabled(ldapData.Attributes[s.config.LDAP.DisabledAttribute])
+	case ldap.TypeOpenLDAP:
+		ldapDeactivated = ldap.IsOpenLdapUserDisabled(ldapData.Attributes[s.config.LDAP.DisabledAttribute])
+	}
+	if ldapDeactivated != 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
 }

internal/server/peermanager.go

@@ -3,11 +3,8 @@ package server
 import (
 	"bytes"
 	"crypto/md5"
-	"errors"
 	"fmt"
 	"net"
-	"os"
-	"path/filepath"
 	"reflect"
 	"regexp"
 	"sort"
@@ -16,18 +13,14 @@ import (
 	"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/h44z/wg-portal/internal/users"
+	"github.com/h44z/wg-portal/internal/wireguard"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
 	"github.com/skip2/go-qrcode"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-	"gorm.io/driver/sqlite"
 	"gorm.io/gorm"
 )
 
@@ -62,19 +55,19 @@ var ipList validator.Func = func(fl validator.FieldLevel) bool {
 
 func init() {
 	if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
-		v.RegisterValidation("cidrlist", cidrList)
-		v.RegisterValidation("iplist", ipList)
+		_ = v.RegisterValidation("cidrlist", cidrList)
+		_ = v.RegisterValidation("iplist", ipList)
 	}
 }
 
 //
-//  USER ----------------------------------------------------------------------------------------
+//  PEER ----------------------------------------------------------------------------------------
 //
 
-type User struct {
-	Peer     *wgtypes.Peer              `gorm:"-"`
-	LdapUser *ldap.UserCacheHolderEntry `gorm:"-"` // optional, it is still possible to have users without ldap
-	Config   string                     `gorm:"-"`
+type Peer struct {
+	Peer   *wgtypes.Peer `gorm:"-"` // WireGuard peer
+	User   *users.User   `gorm:"-"` // user reference for the peer
+	Config string        `gorm:"-"`
 
 	UID               string `form:"uid" binding:"alphanum"` // uid for html identification
 	IsOnline          bool   `gorm:"-"`
@@ -100,33 +93,11 @@ type User struct {
 	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)
+func (p Peer) GetConfig() wgtypes.PeerConfig {
+	publicKey, _ := wgtypes.ParseKey(p.PublicKey)
 	var presharedKey *wgtypes.Key
-	if u.PresharedKey != "" {
-		presharedKeyTmp, _ := wgtypes.ParseKey(u.PresharedKey)
+	if p.PresharedKey != "" {
+		presharedKeyTmp, _ := wgtypes.ParseKey(p.PresharedKey)
 		presharedKey = &presharedKeyTmp
 	}
 
@@ -138,9 +109,9 @@ func (u User) GetPeerConfig() wgtypes.PeerConfig {
 		Endpoint:                    nil,
 		PersistentKeepaliveInterval: nil,
 		ReplaceAllowedIPs:           true,
-		AllowedIPs:                  make([]net.IPNet, len(u.IPs)),
+		AllowedIPs:                  make([]net.IPNet, len(p.IPs)),
 	}
-	for i, ip := range u.IPs {
+	for i, ip := range p.IPs {
 		_, ipNet, err := net.ParseCIDR(ip)
 		if err == nil {
 			cfg.AllowedIPs[i] = *ipNet
@@ -150,29 +121,51 @@ func (u User) GetPeerConfig() wgtypes.PeerConfig {
 	return cfg
 }
 
-func (u User) GetQRCode() ([]byte, error) {
-	png, err := qrcode.Encode(u.Config, qrcode.Medium, 250)
+func (p Peer) GetConfigFile(device Device) ([]byte, error) {
+	tpl, err := template.New("client").Funcs(template.FuncMap{"StringsJoin": strings.Join}).Parse(wireguard.ClientCfgTpl)
 	if err != nil {
-		log.WithFields(log.Fields{
+		return nil, errors.Wrap(err, "failed to parse client template")
+	}
+
+	var tplBuff bytes.Buffer
+
+	err = tpl.Execute(&tplBuff, struct {
+		Client Peer
+		Server Device
+	}{
+		Client: p,
+		Server: 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 {
+		logrus.WithFields(logrus.Fields{
 			"err": err,
 		}).Error("failed to create qrcode")
-		return nil, err
+		return nil, errors.Wrap(err, "failed to encode qrcode")
 	}
 	return png, nil
 }
 
-func (u User) IsValid() bool {
-	if u.PublicKey == "" {
+func (p Peer) IsValid() bool {
+	if p.PublicKey == "" {
 		return false
 	}
 
 	return true
 }
 
-func (u User) ToMap() map[string]string {
+func (p Peer) ToMap() map[string]string {
 	out := make(map[string]string)
 
-	v := reflect.ValueOf(u)
+	v := reflect.ValueOf(p)
 	if v.Kind() == reflect.Ptr {
 		v = v.Elem()
 	}
@@ -189,9 +182,9 @@ func (u User) ToMap() map[string]string {
 	return out
 }
 
-func (u User) GetConfigFileName() string {
+func (p Peer) GetConfigFileName() string {
 	reg := regexp.MustCompile("[^a-zA-Z0-9_-]+")
-	return reg.ReplaceAllString(strings.ReplaceAll(u.Identifier, " ", "-"), "") + ".conf"
+	return reg.ReplaceAllString(strings.ReplaceAll(p.Identifier, " ", "-"), "") + ".conf"
 }
 
 //
@@ -236,7 +229,7 @@ func (d Device) IsValid() bool {
 	return true
 }
 
-func (d Device) GetDeviceConfig() wgtypes.Config {
+func (d Device) GetConfig() wgtypes.Config {
 	var privateKey *wgtypes.Key
 	if d.PrivateKey != "" {
 		pKey, _ := wgtypes.ParseKey(d.PrivateKey)
@@ -251,134 +244,120 @@ func (d Device) GetDeviceConfig() wgtypes.Config {
 	return cfg
 }
 
-func (d Device) GetDeviceConfigFile(clients []User) ([]byte, error) {
+func (d Device) GetConfigFile(peers []Peer) ([]byte, error) {
 	tpl, err := template.New("server").Funcs(template.FuncMap{"StringsJoin": strings.Join}).Parse(wireguard.DeviceCfgTpl)
 	if err != nil {
-		return nil, err
+		return nil, errors.Wrap(err, "failed to parse server template")
 	}
 
 	var tplBuff bytes.Buffer
 
 	err = tpl.Execute(&tplBuff, struct {
-		Clients []User
+		Clients []Peer
 		Server  Device
 	}{
-		Clients: clients,
+		Clients: peers,
 		Server:  d,
 	})
 	if err != nil {
-		return nil, err
+		return nil, errors.Wrap(err, "failed to execute server template")
 	}
 
 	return tplBuff.Bytes(), nil
 }
 
 //
-//  USER-MANAGER --------------------------------------------------------------------------------
+//  PEER-MANAGER --------------------------------------------------------------------------------
 //
 
-type UserManager struct {
-	db        *gorm.DB
-	wg        *wireguard.Manager
-	ldapUsers *ldap.SynchronizedUserCacheHolder
+type PeerManager struct {
+	db    *gorm.DB
+	wg    *wireguard.Manager
+	users *users.Manager
 }
 
-func NewUserManager(dbPath string, wg *wireguard.Manager, ldapUsers *ldap.SynchronizedUserCacheHolder) *UserManager {
-
-	um := &UserManager{wg: wg, ldapUsers: ldapUsers}
+func NewPeerManager(cfg *common.Config, wg *wireguard.Manager, userDB *users.Manager) (*PeerManager, error) {
+	um := &PeerManager{wg: wg, users: userDB}
 	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{})
+	um.db, err = users.GetDatabaseForConfig(&cfg.Database)
 	if err != nil {
-		log.Errorf("failed to open sqlite database (%s): %v", dbPath, err)
-		return nil
+		return nil, errors.WithMessage(err, "failed to open peer database")
 	}
 
-	err = um.db.AutoMigrate(&User{}, &Device{})
+	err = um.db.AutoMigrate(&Peer{}, &Device{})
 	if err != nil {
-		log.Errorf("failed to migrate sqlite database: %v", err)
-		return nil
+		return nil, errors.WithMessage(err, "failed to migrate peer database")
 	}
 
-	return um
+	return um, nil
 }
 
-func (u *UserManager) InitFromCurrentInterface() error {
+func (u *PeerManager) InitFromCurrentInterface() error {
 	peers, err := u.wg.GetPeerList()
 	if err != nil {
-		log.Errorf("failed to init user-manager from peers: %v", err)
-		return err
+		return errors.Wrapf(err, "failed to get peer list")
 	}
 	device, err := u.wg.GetDeviceInfo()
 	if err != nil {
-		log.Errorf("failed to init user-manager from device: %v", err)
-		return err
+		return errors.Wrapf(err, "failed to get device info")
 	}
 	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
+			return errors.Wrapf(err, "failed to get ip address")
 		}
 		if mtu, err = u.wg.GetMTU(); err != nil {
-			log.Errorf("failed to init user-manager from device: %v", err)
-			return err
+			return errors.Wrapf(err, "failed to get MTU")
 		}
 	}
 
 	// 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.validateOrCreatePeer(peer); err != nil {
+			return errors.WithMessagef(err, "failed to validate peer %s", peer.PublicKey)
 		}
 	}
 	if err := u.validateOrCreateDevice(*device, ipAddresses, mtu); err != nil {
-		return err
+		return errors.WithMessagef(err, "failed to validate device %s", device.Name)
 	}
 
 	return nil
 }
 
-func (u *UserManager) validateOrCreateUserForPeer(peer wgtypes.Peer) error {
-	user := User{}
-	u.db.Where("public_key = ?", peer.PublicKey.String()).FirstOrInit(&user)
+func (u *PeerManager) validateOrCreatePeer(wgPeer wgtypes.Peer) error {
+	peer := Peer{}
+	u.db.Where("public_key = ?", wgPeer.PublicKey.String()).FirstOrInit(&peer)
 
-	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()
+	if peer.PublicKey == "" { // peer not found, create
+		peer.UID = fmt.Sprintf("u%x", md5.Sum([]byte(wgPeer.PublicKey.String())))
+		peer.PublicKey = wgPeer.PublicKey.String()
+		peer.PrivateKey = "" // UNKNOWN
+		if wgPeer.PresharedKey != (wgtypes.Key{}) {
+			peer.PresharedKey = wgPeer.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()
+		peer.Email = "autodetected@example.com"
+		peer.Identifier = "Autodetected (" + peer.PublicKey[0:8] + ")"
+		peer.UpdatedAt = time.Now()
+		peer.CreatedAt = time.Now()
+		peer.AllowedIPs = make([]string, 0) // UNKNOWN
+		peer.IPs = make([]string, len(wgPeer.AllowedIPs))
+		for i, ip := range wgPeer.AllowedIPs {
+			peer.IPs[i] = ip.String()
 		}
-		user.AllowedIPsStr = strings.Join(user.AllowedIPs, ", ")
-		user.IPsStr = strings.Join(user.IPs, ", ")
+		peer.AllowedIPsStr = strings.Join(peer.AllowedIPs, ", ")
+		peer.IPsStr = strings.Join(peer.IPs, ", ")
 
-		res := u.db.Create(&user)
+		res := u.db.Create(&peer)
 		if res.Error != nil {
-			log.Errorf("failed to create autodetected peer: %v", res.Error)
-			return res.Error
+			return errors.Wrapf(res.Error, "failed to create autodetected peer %s", peer.PublicKey)
 		}
 	}
 
 	return nil
 }
 
-func (u *UserManager) validateOrCreateDevice(dev wgtypes.Device, ipAddresses []string, mtu int) error {
+func (u *PeerManager) validateOrCreateDevice(dev wgtypes.Device, ipAddresses []string, mtu int) error {
 	device := Device{}
 	u.db.Where("device_name = ?", dev.Name).FirstOrInit(&device)
 
@@ -390,54 +369,53 @@ func (u *UserManager) validateOrCreateDevice(dev wgtypes.Device, ipAddresses []s
 		device.Mtu = 0
 		device.PersistentKeepalive = 16 // Default
 		device.IPsStr = strings.Join(ipAddresses, ", ")
-		if mtu == wireguard.WireGuardDefaultMTU {
+		if mtu == wireguard.DefaultMTU {
 			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 errors.Wrapf(res.Error, "failed to create autodetected device")
 		}
 	}
 
 	return nil
 }
 
-func (u *UserManager) populateUserData(user *User) {
-	user.AllowedIPs = strings.Split(user.AllowedIPsStr, ", ")
-	user.IPs = strings.Split(user.IPsStr, ", ")
+func (u *PeerManager) populatePeerData(peer *Peer) {
+	peer.AllowedIPs = strings.Split(peer.AllowedIPsStr, ", ")
+	peer.IPs = strings.Split(peer.IPsStr, ", ")
 	// Set config file
-	tmpCfg, _ := user.GetClientConfigFile(u.GetDevice())
-	user.Config = string(tmpCfg)
+	tmpCfg, _ := peer.GetConfigFile(u.GetDevice())
+	peer.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)
+	peer.Peer, _ = u.wg.GetPeer(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 := int(sinceSeconds / 60)
 		sinceSeconds -= sinceMinutes * 60
 
 		if sinceMinutes > 2*10080 { // 2 weeks
-			user.LastHandshake = "a while ago"
+			peer.LastHandshake = "a while ago"
 		} else if sinceMinutes > 10080 { // 1 week
-			user.LastHandshake = "a week ago"
+			peer.LastHandshake = "a week ago"
 		} else {
-			user.LastHandshake = fmt.Sprintf("%02dm %02ds", sinceMinutes, sinceSeconds)
+			peer.LastHandshake = fmt.Sprintf("%02dm %02ds", sinceMinutes, sinceSeconds)
 		}
-		user.LastHandshakeTime = user.Peer.LastHandshakeTime.Format(time.UnixDate)
+		peer.LastHandshakeTime = peer.Peer.LastHandshakeTime.Format(time.UnixDate)
 	}
-	user.IsOnline = false // todo: calculate online status
+	peer.IsOnline = false
 
-	// set ldap data
-	user.LdapUser = u.ldapUsers.GetUserData(u.ldapUsers.GetUserDNByMail(user.Email))
+	// set user data
+	peer.User = u.users.GetUser(peer.Email)
 }
 
-func (u *UserManager) populateDeviceData(device *Device) {
+func (u *PeerManager) populateDeviceData(device *Device) {
 	device.AllowedIPs = strings.Split(device.AllowedIPsStr, ", ")
 	device.IPs = strings.Split(device.IPsStr, ", ")
 	device.DNS = strings.Split(device.DNSStr, ", ")
@@ -446,69 +424,69 @@ func (u *UserManager) populateDeviceData(device *Device) {
 	device.Interface, _ = u.wg.GetDeviceInfo()
 }
 
-func (u *UserManager) GetAllUsers() []User {
-	users := make([]User, 0)
-	u.db.Find(&users)
+func (u *PeerManager) GetAllPeers() []Peer {
+	peers := make([]Peer, 0)
+	u.db.Find(&peers)
 
-	for i := range users {
-		u.populateUserData(&users[i])
+	for i := range peers {
+		u.populatePeerData(&peers[i])
 	}
 
-	return users
+	return peers
 }
 
-func (u *UserManager) GetActiveUsers() []User {
-	users := make([]User, 0)
-	u.db.Where("deactivated_at IS NULL").Find(&users)
+func (u *PeerManager) GetActivePeers() []Peer {
+	peers := make([]Peer, 0)
+	u.db.Where("deactivated_at IS NULL").Find(&peers)
 
-	for i := range users {
-		u.populateUserData(&users[i])
+	for i := range peers {
+		u.populatePeerData(&peers[i])
 	}
 
-	return users
+	return peers
 }
 
-func (u *UserManager) GetFilteredAndSortedUsers(sortKey, sortDirection, search string) []User {
-	users := make([]User, 0)
-	u.db.Find(&users)
+func (u *PeerManager) GetFilteredAndSortedPeers(sortKey, sortDirection, search string) []Peer {
+	peers := make([]Peer, 0)
+	u.db.Find(&peers)
 
-	filteredUsers := make([]User, 0, len(users))
-	for i := range users {
-		u.populateUserData(&users[i])
+	filteredPeers := make([]Peer, 0, len(peers))
+	for i := range peers {
+		u.populatePeerData(&peers[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])
+			strings.Contains(peers[i].Email, search) ||
+			strings.Contains(peers[i].Identifier, search) ||
+			strings.Contains(peers[i].PublicKey, search) {
+			filteredPeers = append(filteredPeers, peers[i])
 		}
 	}
 
-	sort.Slice(filteredUsers, func(i, j int) bool {
+	sort.Slice(filteredPeers, func(i, j int) bool {
 		var sortValueLeft string
 		var sortValueRight string
 
 		switch sortKey {
 		case "id":
-			sortValueLeft = filteredUsers[i].Identifier
-			sortValueRight = filteredUsers[j].Identifier
+			sortValueLeft = filteredPeers[i].Identifier
+			sortValueRight = filteredPeers[j].Identifier
 		case "pubKey":
-			sortValueLeft = filteredUsers[i].PublicKey
-			sortValueRight = filteredUsers[j].PublicKey
+			sortValueLeft = filteredPeers[i].PublicKey
+			sortValueRight = filteredPeers[j].PublicKey
 		case "mail":
-			sortValueLeft = filteredUsers[i].Email
-			sortValueRight = filteredUsers[j].Email
+			sortValueLeft = filteredPeers[i].Email
+			sortValueRight = filteredPeers[j].Email
 		case "ip":
-			sortValueLeft = filteredUsers[i].IPsStr
-			sortValueRight = filteredUsers[j].IPsStr
+			sortValueLeft = filteredPeers[i].IPsStr
+			sortValueRight = filteredPeers[j].IPsStr
 		case "handshake":
-			if filteredUsers[i].Peer == nil {
+			if filteredPeers[i].Peer == nil {
 				return false
-			} else if filteredUsers[j].Peer == nil {
+			} else if filteredPeers[j].Peer == nil {
 				return true
 			}
-			sortValueLeft = filteredUsers[i].Peer.LastHandshakeTime.Format(time.RFC3339)
-			sortValueRight = filteredUsers[j].Peer.LastHandshakeTime.Format(time.RFC3339)
+			sortValueLeft = filteredPeers[i].Peer.LastHandshakeTime.Format(time.RFC3339)
+			sortValueRight = filteredPeers[j].Peer.LastHandshakeTime.Format(time.RFC3339)
 		}
 
 		if sortDirection == "asc" {
@@ -518,42 +496,42 @@ func (u *UserManager) GetFilteredAndSortedUsers(sortKey, sortDirection, search s
 		}
 	})
 
-	return filteredUsers
+	return filteredPeers
 }
 
-func (u *UserManager) GetSortedUsersForEmail(sortKey, sortDirection, email string) []User {
-	users := make([]User, 0)
-	u.db.Where("email = ?", email).Find(&users)
+func (u *PeerManager) GetSortedPeersForEmail(sortKey, sortDirection, email string) []Peer {
+	peers := make([]Peer, 0)
+	u.db.Where("email = ?", email).Find(&peers)
 
-	for i := range users {
-		u.populateUserData(&users[i])
+	for i := range peers {
+		u.populatePeerData(&peers[i])
 	}
 
-	sort.Slice(users, func(i, j int) bool {
+	sort.Slice(peers, func(i, j int) bool {
 		var sortValueLeft string
 		var sortValueRight string
 
 		switch sortKey {
 		case "id":
-			sortValueLeft = users[i].Identifier
-			sortValueRight = users[j].Identifier
+			sortValueLeft = peers[i].Identifier
+			sortValueRight = peers[j].Identifier
 		case "pubKey":
-			sortValueLeft = users[i].PublicKey
-			sortValueRight = users[j].PublicKey
+			sortValueLeft = peers[i].PublicKey
+			sortValueRight = peers[j].PublicKey
 		case "mail":
-			sortValueLeft = users[i].Email
-			sortValueRight = users[j].Email
+			sortValueLeft = peers[i].Email
+			sortValueRight = peers[j].Email
 		case "ip":
-			sortValueLeft = users[i].IPsStr
-			sortValueRight = users[j].IPsStr
+			sortValueLeft = peers[i].IPsStr
+			sortValueRight = peers[j].IPsStr
 		case "handshake":
-			if users[i].Peer == nil {
+			if peers[i].Peer == nil {
 				return true
-			} else if users[j].Peer == nil {
+			} else if peers[j].Peer == nil {
 				return false
 			}
-			sortValueLeft = users[i].Peer.LastHandshakeTime.Format(time.RFC3339)
-			sortValueRight = users[j].Peer.LastHandshakeTime.Format(time.RFC3339)
+			sortValueLeft = peers[i].Peer.LastHandshakeTime.Format(time.RFC3339)
+			sortValueRight = peers[j].Peer.LastHandshakeTime.Format(time.RFC3339)
 		}
 
 		if sortDirection == "asc" {
@@ -563,10 +541,10 @@ func (u *UserManager) GetSortedUsersForEmail(sortKey, sortDirection, email strin
 		}
 	})
 
-	return users
+	return peers
 }
 
-func (u *UserManager) GetDevice() Device {
+func (u *PeerManager) GetDevice() Device {
 	devices := make([]Device, 0, 1)
 	u.db.Find(&devices)
 
@@ -577,64 +555,64 @@ func (u *UserManager) GetDevice() Device {
 	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 *PeerManager) GetPeerByKey(publicKey string) Peer {
+	peer := Peer{}
+	u.db.Where("public_key = ?", publicKey).FirstOrInit(&peer)
+	u.populatePeerData(&peer)
+	return peer
 }
 
-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])
+func (u *PeerManager) GetPeersByMail(mail string) []Peer {
+	var peers []Peer
+	u.db.Where("email = ?", mail).Find(&peers)
+	for i := range peers {
+		u.populatePeerData(&peers[i])
 	}
 
-	return users
+	return peers
 }
 
-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, ", ")
+func (u *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.AllowedIPsStr = strings.Join(peer.AllowedIPs, ", ")
+	peer.IPsStr = strings.Join(peer.IPs, ", ")
 
-	res := u.db.Create(&user)
+	res := u.db.Create(&peer)
 	if res.Error != nil {
-		log.Errorf("failed to create user: %v", res.Error)
-		return res.Error
+		logrus.Errorf("failed to create peer: %v", res.Error)
+		return errors.Wrap(res.Error, "failed to create peer")
 	}
 
 	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, ", ")
+func (u *PeerManager) UpdatePeer(peer Peer) error {
+	peer.UpdatedAt = time.Now()
+	peer.AllowedIPsStr = strings.Join(peer.AllowedIPs, ", ")
+	peer.IPsStr = strings.Join(peer.IPs, ", ")
 
-	res := u.db.Save(&user)
+	res := u.db.Save(&peer)
 	if res.Error != nil {
-		log.Errorf("failed to update user: %v", res.Error)
-		return res.Error
+		logrus.Errorf("failed to update peer: %v", res.Error)
+		return errors.Wrap(res.Error, "failed to update peer")
 	}
 
 	return nil
 }
 
-func (u *UserManager) DeleteUser(user User) error {
-	res := u.db.Delete(&user)
+func (u *PeerManager) DeletePeer(peer Peer) error {
+	res := u.db.Delete(&peer)
 	if res.Error != nil {
-		log.Errorf("failed to delete user: %v", res.Error)
-		return res.Error
+		logrus.Errorf("failed to delete peer: %v", res.Error)
+		return errors.Wrap(res.Error, "failed to delete peer")
 	}
 
 	return nil
 }
 
-func (u *UserManager) UpdateDevice(device Device) error {
+func (u *PeerManager) UpdateDevice(device Device) error {
 	device.UpdatedAt = time.Now()
 	device.AllowedIPsStr = strings.Join(device.AllowedIPs, ", ")
 	device.IPsStr = strings.Join(device.IPs, ", ")
@@ -642,24 +620,24 @@ func (u *UserManager) UpdateDevice(device Device) error {
 
 	res := u.db.Save(&device)
 	if res.Error != nil {
-		log.Errorf("failed to update device: %v", res.Error)
-		return res.Error
+		logrus.Errorf("failed to update device: %v", res.Error)
+		return errors.Wrap(res.Error, "failed to update device")
 	}
 
 	return nil
 }
 
-func (u *UserManager) GetAllReservedIps() ([]string, error) {
+func (u *PeerManager) GetAllReservedIps() ([]string, error) {
 	reservedIps := make([]string, 0)
-	users := u.GetAllUsers()
-	for _, user := range users {
+	peers := u.GetAllPeers()
+	for _, user := range peers {
 		for _, cidr := range user.IPs {
 			if cidr == "" {
 				continue
 			}
 			ip, _, err := net.ParseCIDR(cidr)
 			if err != nil {
-				return nil, err
+				return nil, errors.Wrap(err, "failed to parse cidr")
 			}
 			reservedIps = append(reservedIps, ip.String())
 		}
@@ -672,7 +650,7 @@ func (u *UserManager) GetAllReservedIps() ([]string, error) {
 		}
 		ip, _, err := net.ParseCIDR(cidr)
 		if err != nil {
-			return nil, err
+			return nil, errors.Wrap(err, "failed to parse cidr")
 		}
 
 		reservedIps = append(reservedIps, ip.String())
@@ -681,7 +659,7 @@ func (u *UserManager) GetAllReservedIps() ([]string, error) {
 	return reservedIps, nil
 }
 
-func (u *UserManager) IsIPReserved(cidr string) bool {
+func (u *PeerManager) IsIPReserved(cidr string) bool {
 	reserved, err := u.GetAllReservedIps()
 	if err != nil {
 		return true // in case something failed, assume the ip is reserved
@@ -710,14 +688,14 @@ func (u *UserManager) IsIPReserved(cidr string) bool {
 }
 
 // GetAvailableIp search for an available ip in cidr against a list of reserved ips
-func (u *UserManager) GetAvailableIp(cidr string) (string, error) {
+func (u *PeerManager) GetAvailableIp(cidr string) (string, error) {
 	reserved, err := u.GetAllReservedIps()
 	if err != nil {
-		return "", err
+		return "", errors.WithMessage(err, "failed to get all reserved IP addresses")
 	}
 	ip, ipnet, err := net.ParseCIDR(cidr)
 	if err != nil {
-		return "", err
+		return "", errors.Wrap(err, "failed to parse cidr")
 	}
 
 	// this two addresses are not usable

internal/server/routes.go

@@ -4,11 +4,20 @@ import (
 	"net/http"
 
 	"github.com/gin-gonic/gin"
+	wg_portal "github.com/h44z/wg-portal"
 )
 
 func SetupRoutes(s *Server) {
 	// Startpage
 	s.server.GET("/", s.GetIndex)
+	s.server.GET("/favicon.ico", func(c *gin.Context) {
+		file, _ := wg_portal.Statics.ReadFile("assets/img/favicon.ico")
+		c.Data(
+			http.StatusOK,
+			"image/x-icon",
+			file,
+		)
+	})
 
 	// Auth routes
 	auth := s.server.Group("/auth")
@@ -18,7 +27,7 @@ func SetupRoutes(s *Server) {
 
 	// Admin routes
 	admin := s.server.Group("/admin")
-	admin.Use(s.RequireAuthentication(s.config.AdminLdapGroup))
+	admin.Use(s.RequireAuthentication("admin"))
 	admin.GET("/", s.GetAdminIndex)
 	admin.GET("/device/edit", s.GetAdminEditInterface)
 	admin.POST("/device/edit", s.PostAdminEditInterface)
@@ -34,6 +43,12 @@ 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(s.RequireAuthentication("")) // empty scope = all logged in users
@@ -46,7 +61,7 @@ func SetupRoutes(s *Server) {
 
 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 +70,15 @@ 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 randome 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")

internal/server/server.go

@@ -0,0 +1,315 @@
+package server
+
+import (
+	"context"
+	"encoding/gob"
+	"html/template"
+	"io/fs"
+	"io/ioutil"
+	"math/rand"
+	"net/http"
+	"net/url"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/gin-contrib/sessions"
+	"github.com/gin-contrib/sessions/memstore"
+	"github.com/gin-gonic/gin"
+	wg_portal "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"
+)
+
+const SessionIdentifier = "wgPortalSession"
+
+func init() {
+	gob.Register(SessionData{})
+	gob.Register(FlashData{})
+	gob.Register(Peer{})
+	gob.Register(Device{})
+	gob.Register(LdapCreateForm{})
+	gob.Register(users.User{})
+}
+
+type SessionData struct {
+	LoggedIn  bool
+	IsAdmin   bool
+	Firstname string
+	Lastname  string
+	Email     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
+}
+
+type Server struct {
+	ctx     context.Context
+	config  *common.Config
+	server  *gin.Engine
+	mailTpl *template.Template
+	auth    *AuthManager
+
+	users *users.Manager
+	wg    *wireguard.Manager
+	peers *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 = common.NewConfig()
+	s.ctx = ctx
+
+	// 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.SetFuncMap(template.FuncMap{
+		"formatBytes": common.ByteCountSI,
+		"urlEncode":   url.QueryEscape,
+	})
+
+	// Setup templates
+	templates := template.Must(template.New("").Funcs(s.server.FuncMap).ParseFS(wg_portal.Templates, "assets/tpl/*.html"))
+	s.server.SetHTMLTemplate(templates)
+	s.server.Use(sessions.Sessions("authsession", memstore.NewStore([]byte("secret")))) // TODO: change key?
+
+	// Serve static files
+	s.server.StaticFS("/css", http.FS(fsMust(fs.Sub(wg_portal.Statics, "assets/css"))))
+	s.server.StaticFS("/js", http.FS(fsMust(fs.Sub(wg_portal.Statics, "assets/js"))))
+	s.server.StaticFS("/img", http.FS(fsMust(fs.Sub(wg_portal.Statics, "assets/img"))))
+	s.server.StaticFS("/fonts", http.FS(fsMust(fs.Sub(wg_portal.Statics, "assets/fonts"))))
+
+	// Setup all routes
+	SetupRoutes(s)
+
+	// Setup user database (also needed for database authentication)
+	s.users, err = users.NewManager(&s.config.Database)
+	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 = NewPeerManager(s.config, s.wg, s.users); err != nil {
+		return errors.WithMessage(err, "unable to setup peer manager")
+	}
+	if err = s.peers.InitFromCurrentInterface(); err != nil {
+		return errors.WithMessage(err, "unable to initialize peer manager")
+	}
+	if err = s.RestoreWireGuardInterface(); err != nil {
+		return errors.WithMessage(err, "unable to restore WireGuard state")
+	}
+
+	// Setup mail template
+	s.mailTpl, err = template.New("email.html").ParseFS(wg_portal.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() {
+	// 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(),
+	}
+}
+
+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": "mail", "userpeers": "mail", "users": "email"},
+			SortDirection: map[string]string{"peers": "asc", "userpeers": "asc", "users": "asc"},
+			Email:         "",
+			Firstname:     "",
+			Lastname:      "",
+			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 +1,297 @@
+package server
+
+import (
+	"crypto/md5"
+	"fmt"
+	"io/ioutil"
+	"syscall"
+	"time"
+
+	"github.com/h44z/wg-portal/internal/common"
+	"github.com/h44z/wg-portal/internal/users"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+	"gorm.io/gorm"
+)
+
+func (s *Server) PrepareNewPeer() (Peer, error) {
+	device := s.peers.GetDevice()
+
+	peer := Peer{}
+	peer.IsNew = true
+	peer.AllowedIPsStr = device.AllowedIPsStr
+	peer.IPs = make([]string, len(device.IPs))
+	for i := range device.IPs {
+		freeIP, err := s.peers.GetAvailableIp(device.IPs[i])
+		if err != nil {
+			return Peer{}, errors.WithMessage(err, "failed to get available IP addresses")
+		}
+		peer.IPs[i] = freeIP
+	}
+	peer.IPsStr = common.ListToString(peer.IPs)
+	psk, err := wgtypes.GenerateKey()
+	if err != nil {
+		return Peer{}, errors.Wrap(err, "failed to generate key")
+	}
+	key, err := wgtypes.GeneratePrivateKey()
+	if err != nil {
+		return 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)))
+
+	return peer, nil
+}
+
+func (s *Server) CreatePeerByEmail(email, identifierSuffix string, disabled bool) error {
+	user, err := s.users.GetOrCreateUser(email)
+	if err != nil {
+		return errors.WithMessagef(err, "failed to load/create related user %s", email)
+	}
+
+	device := s.peers.GetDevice()
+	peer := Peer{}
+	peer.User = user
+	peer.AllowedIPsStr = device.AllowedIPsStr
+	peer.IPs = make([]string, len(device.IPs))
+	for i := range device.IPs {
+		freeIP, err := s.peers.GetAvailableIp(device.IPs[i])
+		if err != nil {
+			return errors.WithMessage(err, "failed to get available IP addresses")
+		}
+		peer.IPs[i] = freeIP
+	}
+	peer.IPsStr = common.ListToString(peer.IPs)
+	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.UID = fmt.Sprintf("u%x", md5.Sum([]byte(peer.PublicKey)))
+	peer.Email = email
+	peer.Identifier = fmt.Sprintf("%s %s (%s)", user.Firstname, user.Lastname, identifierSuffix)
+	now := time.Now()
+	if disabled {
+		peer.DeactivatedAt = &now
+	}
+
+	return s.CreatePeer(peer)
+}
+
+func (s *Server) CreatePeer(peer Peer) error {
+	device := s.peers.GetDevice()
+	peer.AllowedIPsStr = device.AllowedIPsStr
+	if peer.IPs == nil || len(peer.IPs) == 0 {
+		peer.IPs = make([]string, len(device.IPs))
+		for i := range device.IPs {
+			freeIP, err := s.peers.GetAvailableIp(device.IPs[i])
+			if err != nil {
+				return errors.WithMessage(err, "failed to get available IP addresses")
+			}
+			peer.IPs[i] = freeIP
+		}
+		peer.IPsStr = common.ListToString(peer.IPs)
+	}
+	if peer.PrivateKey == "" { // 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.UID = fmt.Sprintf("u%x", md5.Sum([]byte(peer.PublicKey)))
+
+	// Create WireGuard interface
+	if peer.DeactivatedAt == nil {
+		if err := s.wg.AddPeer(peer.GetConfig()); 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()
+}
+
+func (s *Server) UpdatePeer(peer Peer, updateTime time.Time) error {
+	currentPeer := s.peers.GetPeerByKey(peer.PublicKey)
+
+	// Update WireGuard device
+	var err error
+	switch {
+	case peer.DeactivatedAt == &updateTime:
+		err = s.wg.RemovePeer(peer.PublicKey)
+	case peer.DeactivatedAt == nil && currentPeer.Peer != nil:
+		err = s.wg.UpdatePeer(peer.GetConfig())
+	case peer.DeactivatedAt == nil && currentPeer.Peer == nil:
+		err = s.wg.AddPeer(peer.GetConfig())
+	}
+	if err != nil {
+		return errors.WithMessage(err, "failed to update WireGuard peer")
+	}
+
+	// Update in database
+	if err := s.peers.UpdatePeer(peer); err != nil {
+		return errors.WithMessage(err, "failed to update peer")
+	}
+
+	return s.WriteWireGuardConfigFile()
+}
+
+func (s *Server) DeletePeer(peer Peer) error {
+	// Delete WireGuard peer
+	if err := s.wg.RemovePeer(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()
+}
+
+func (s *Server) RestoreWireGuardInterface() error {
+	activePeers := s.peers.GetActivePeers()
+
+	for i := range activePeers {
+		if activePeers[i].Peer == nil {
+			if err := s.wg.AddPeer(activePeers[i].GetConfig()); err != nil {
+				return errors.WithMessage(err, "failed to add WireGuard peer")
+			}
+		}
+	}
+
+	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 errors.Wrap(err, "failed to check WireGuard config access rights")
+	}
+
+	device := s.peers.GetDevice()
+	cfg, err := device.GetConfigFile(s.peers.GetActivePeers())
+	if err != nil {
+		return errors.WithMessage(err, "failed to get config file")
+	}
+	if err := ioutil.WriteFile(s.config.WG.WireGuardConfig, cfg, 0644); err != nil {
+		return errors.Wrap(err, "failed to write WireGuard config file")
+	}
+	return nil
+}
+
+func (s *Server) CreateUser(user users.User) 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)
+	}
+
+	// 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)
+}
+
+func (s *Server) UpdateUser(user users.User) error {
+	if user.DeletedAt.Valid {
+		return s.DeleteUser(user)
+	}
+
+	currentUser := s.users.GetUserUnscoped(user.Email)
+
+	// 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
+}
+
+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 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(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
+}

internal/users/config.go

@@ -0,0 +1,17 @@
+package users
+
+type SupportedDatabase string
+
+const (
+	SupportedDatabaseMySQL  SupportedDatabase = "mysql"
+	SupportedDatabaseSQLite SupportedDatabase = "sqlite"
+)
+
+type Config 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"`
+}

internal/users/manager.go

@@ -0,0 +1,272 @@
+package users
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"sort"
+	"strconv"
+	"strings"
+	"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 GetDatabaseForConfig(cfg *Config) (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{})
+		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 Manager struct {
+	db *gorm.DB
+}
+
+func NewManager(cfg *Config) (*Manager, error) {
+	m := &Manager{}
+
+	var err error
+	m.db, err = GetDatabaseForConfig(cfg)
+	if err != nil {
+		return nil, errors.Wrapf(err, "failed to setup user database %s", cfg.Database)
+	}
+
+	// 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")
+		}
+	}
+
+	return m, m.MigrateUserDB()
+}
+
+func (m Manager) MigrateUserDB() error {
+	if err := m.db.AutoMigrate(&User{}); err != nil {
+		return errors.Wrap(err, "failed to migrate user database")
+	}
+	return 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 {
+	user := User{}
+	m.db.Where("email = ?", email).First(&user)
+
+	if user.Email != email {
+		return nil
+	}
+
+	return &user
+}
+
+func (m Manager) GetUserUnscoped(email string) *User {
+	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) {
+	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) {
+	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 {
+	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 {
+	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 {
+	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, 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 +1,36 @@
+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
+)
+
+// 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 string `form:"password" binding:"omitempty"`
+
+	// database internal fields
+	CreatedAt time.Time
+	UpdatedAt time.Time
+	DeletedAt gorm.DeletedAt `gorm:"index"`
+}

internal/wireguard/manager.go

@@ -1,9 +1,10 @@
 package wireguard
 
 import (
-	"fmt"
 	"sync"
 
+	"github.com/pkg/errors"
+
 	"golang.zx2c4.com/wireguard/wgctrl"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 )
@@ -18,7 +19,7 @@ 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
@@ -27,7 +28,7 @@ func (m *Manager) Init() error {
 func (m *Manager) GetDeviceInfo() (*wgtypes.Device, error) {
 	dev, err := m.wg.Device(m.Cfg.DeviceName)
 	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
@@ -39,7 +40,7 @@ func (m *Manager) GetPeerList() ([]wgtypes.Peer, error) {
 
 	dev, err := m.wg.Device(m.Cfg.DeviceName)
 	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
@@ -51,12 +52,12 @@ func (m *Manager) GetPeer(pubKey string) (*wgtypes.Peer, error) {
 
 	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()
 	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 {
@@ -65,7 +66,7 @@ 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 {
@@ -74,7 +75,7 @@ func (m *Manager) AddPeer(cfg wgtypes.PeerConfig) error {
 
 	err := m.wg.ConfigureDevice(m.Cfg.DeviceName, 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
@@ -87,7 +88,7 @@ func (m *Manager) UpdatePeer(cfg wgtypes.PeerConfig) error {
 	cfg.UpdateOnly = true
 	err := m.wg.ConfigureDevice(m.Cfg.DeviceName, 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
@@ -99,7 +100,7 @@ func (m *Manager) RemovePeer(pubKey string) error {
 
 	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{
@@ -109,7 +110,7 @@ func (m *Manager) RemovePeer(pubKey string) error {
 
 	err = m.wg.ConfigureDevice(m.Cfg.DeviceName, 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

internal/wireguard/net.go

@@ -4,26 +4,28 @@ import (
 	"fmt"
 	"net"
 
+	"github.com/pkg/errors"
+
 	"github.com/milosgajdos/tenus"
 )
 
-const WireGuardDefaultMTU = 1420
+const DefaultMTU = 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)
+		return nil, errors.Wrapf(err, "could not retrieve WireGuard interface %s", m.Cfg.DeviceName)
 	}
 
 	// 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)
+		return nil, errors.Wrap(err, "could not retrieve WireGuard net.interface")
 	}
 
 	addrs, err := iface.Addrs()
 	if err != nil {
-		return nil, fmt.Errorf("could not retrieve WireGuard ip addresses: %w", err)
+		return nil, errors.Wrap(err, "could not retrieve WireGuard ip addresses")
 	}
 
 	ipAddresses := make([]string, 0, len(addrs))
@@ -38,7 +40,7 @@ func (m *Manager) GetIPAddress() ([]string, error) {
 			ip = v.IP
 			mask = ip.DefaultMask()
 		}
-		if ip == nil {
+		if ip == nil || mask == nil {
 			continue // something is wrong?
 		}
 
@@ -53,34 +55,34 @@ func (m *Manager) GetIPAddress() ([]string, error) {
 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)
+		return errors.Wrapf(err, "could not retrieve WireGuard interface %s", m.Cfg.DeviceName)
 	}
 
 	// First remove existing IP addresses
 	existingIPs, err := m.GetIPAddress()
 	if err != nil {
-		return err
+		return errors.Wrap(err, "could not retrieve IP addresses")
 	}
 	for _, cidr := range existingIPs {
 		wgIp, wgIpNet, err := net.ParseCIDR(cidr)
 		if err != nil {
-			return fmt.Errorf("unable to parse cidr %s: %w", cidr, err)
+			return errors.Wrapf(err, "unable to parse cidr %s", cidr)
 		}
 
 		if err := wgInterface.UnsetLinkIp(wgIp, wgIpNet); err != nil {
-			return fmt.Errorf("failed to unset ip %s: %w", cidr, err)
+			return errors.Wrapf(err, "failed to unset ip %s", cidr)
 		}
 	}
 
-	// Next set new IP adrresses
+	// Next set new IP addresses
 	for _, cidr := range cidrs {
 		wgIp, wgIpNet, err := net.ParseCIDR(cidr)
 		if err != nil {
-			return fmt.Errorf("unable to parse cidr %s: %w", cidr, err)
+			return errors.Wrapf(err, "unable to parse cidr %s", cidr)
 		}
 
 		if err := wgInterface.SetLinkIp(wgIp, wgIpNet); err != nil {
-			return fmt.Errorf("failed to set ip %s: %w", cidr, err)
+			return errors.Wrapf(err, "failed to set ip %s", cidr)
 		}
 	}
 
@@ -90,13 +92,13 @@ func (m *Manager) SetIPAddress(cidrs []string) error {
 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)
+		return 0, errors.Wrapf(err, "could not retrieve WireGuard interface %s", m.Cfg.DeviceName)
 	}
 
 	// 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 0, errors.Wrap(err, "could not retrieve WireGuard net.interface")
 	}
 
 	return iface.MTU, nil
@@ -105,15 +107,15 @@ func (m *Manager) GetMTU() (int, error) {
 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)
+		return errors.Wrapf(err, "could not retrieve WireGuard interface %s", m.Cfg.DeviceName)
 	}
 
 	if mtu == 0 {
-		mtu = WireGuardDefaultMTU
+		mtu = DefaultMTU
 	}
 
 	if err := wgInterface.SetLinkMTU(mtu); err != nil {
-		return fmt.Errorf("could not set MTU on interface %s: %w", m.Cfg.DeviceName, err)
+		return errors.Wrapf(err, "could not set MTU on interface %s", m.Cfg.DeviceName)
 	}
 
 	return nil