backport username display bugfix (#456)

(cherry picked from commit e3b65ca337)

.github/workflows/pages.yml

@@ -27,7 +27,14 @@ jobs:
         run: pip install mike mkdocs-material[imaging] mkdocs-minify-plugin mkdocs-swagger-ui-tag
 
       - name: Publish documentation
-        run: mike deploy --push --update-aliases ${{ github.ref_name }} latest
+        if: ${{ ! startsWith(github.ref, 'refs/tags/') }}
+        run: mike deploy --push ${{ github.ref_name }}
         env:
           GIT_COMMITTER_NAME: "github-actions[bot]"
           GIT_COMMITTER_EMAIL: "41898282+github-actions[bot]@users.noreply.github.com"
+      - name: Publish latest documentation
+        if: ${{ startsWith(github.ref, 'refs/tags/') }}
+        run: mike deploy --push --update-aliases ${{ github.ref_name }} latest
+        env:
+          GIT_COMMITTER_NAME: "github-actions[bot]"
+          GIT_COMMITTER_EMAIL: "41898282+github-actions[bot]@users.noreply.github.com"

frontend/index.html

@@ -24,7 +24,7 @@
     <div id="toasts"></div>
 
     <!-- main application -->
-    <div id="app"></div>
+    <div id="app" class="d-flex flex-column flex-grow-1"></div>
 
     <!-- vue teleport will add modals and dialogs here -->
     <div id="modals"></div>

frontend/src/App.vue

@@ -61,6 +61,26 @@ const companyName = ref(WGPORTAL_SITE_COMPANY_NAME);
 const wgVersion = ref(WGPORTAL_VERSION);
 const currentYear = ref(new Date().getFullYear())
 
+const userDisplayName = computed(() => {
+  let displayName = "Unknown";
+  if (auth.IsAuthenticated) {
+    if (auth.User.Firstname === "" && auth.User.Lastname === "") {
+      displayName = auth.User.Identifier;
+    } else if (auth.User.Firstname === "" && auth.User.Lastname !== "") {
+      displayName = auth.User.Lastname;
+    } else if (auth.User.Firstname !== "" && auth.User.Lastname === "") {
+      displayName = auth.User.Firstname;
+    } else if (auth.User.Firstname !== "" && auth.User.Lastname !== "") {
+      displayName = auth.User.Firstname + " " + auth.User.Lastname;
+    }
+  }
+
+  // pad string to 20 characters so that the menu is always the same size on desktop
+  if (displayName.length < 20 && window.innerWidth > 992) {
+    displayName = displayName.padStart(20, "\u00A0");
+  }
+  return displayName;
+})
 </script>
 
 <template>
@@ -93,7 +113,7 @@ const currentYear = ref(new Date().getFullYear())
         <div class="navbar-nav d-flex justify-content-end">
           <div v-if="auth.IsAuthenticated" class="nav-item dropdown">
             <a aria-expanded="false" aria-haspopup="true" class="nav-link dropdown-toggle" data-bs-toggle="dropdown"
-              href="#" role="button">{{ auth.User.Firstname }} {{ auth.User.Lastname }}</a>
+              href="#" role="button">{{ userDisplayName }}</a>
             <div class="dropdown-menu">
               <RouterLink :to="{ name: 'profile' }" class="dropdown-item"><i class="fas fa-user"></i> {{ $t('menu.profile') }}</RouterLink>
               <RouterLink :to="{ name: 'settings' }" class="dropdown-item" v-if="auth.IsAdmin || !settings.Setting('ApiAdminOnly')"><i class="fas fa-gears"></i> {{ $t('menu.settings') }}</RouterLink>
@@ -140,6 +160,7 @@ const currentYear = ref(new Date().getFullYear())
         </div>
       </div>
     </div>
-  </footer></template>
+  </footer>
+</template>
 
 <style></style>

frontend/src/stores/profile.js

@@ -129,7 +129,7 @@ export const profileStore = defineStore('profile', {
       return apiWrapper.post(`${baseUrl}/${base64_url_encode(currentUser)}/api/enable`)
           .then(this.setUser)
           .catch(error => {
-            this.setPeers([])
+            this.fetching = false
             console.log("Failed to activate API for ", currentUser, ": ", error)
             notify({
               title: "Backend Connection Failure",
@@ -143,7 +143,7 @@ export const profileStore = defineStore('profile', {
       return apiWrapper.post(`${baseUrl}/${base64_url_encode(currentUser)}/api/disable`)
           .then(this.setUser)
           .catch(error => {
-            this.setPeers([])
+            this.fetching = false
             console.log("Failed to deactivate API for ", currentUser, ": ", error)
             notify({
               title: "Backend Connection Failure",

go.mod

@@ -16,11 +16,11 @@ require (
 	github.com/stretchr/testify v1.10.0
 	github.com/swaggo/swag v1.16.4
 	github.com/vardius/message-bus v1.1.5
-	github.com/vishvananda/netlink v1.3.0
+	github.com/vishvananda/netlink v1.3.1
 	github.com/xhit/go-simple-mail/v2 v2.16.0
 	github.com/yeqown/go-qrcode/v2 v2.2.5
 	github.com/yeqown/go-qrcode/writer/compressed v1.0.1
-	golang.org/x/crypto v0.37.0
+	golang.org/x/crypto v0.38.0
 	golang.org/x/oauth2 v0.30.0
 	golang.org/x/sys v0.33.0
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20241231184526-a9ab2273dd10
@@ -28,7 +28,7 @@ require (
 	gorm.io/driver/mysql v1.5.7
 	gorm.io/driver/postgres v1.5.11
 	gorm.io/driver/sqlserver v1.5.4
-	gorm.io/gorm v1.25.12
+	gorm.io/gorm v1.26.1
 )
 
 require (
@@ -81,8 +81,8 @@ require (
 	github.com/yeqown/reedsolomon v1.0.0 // indirect
 	golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 // indirect
 	golang.org/x/net v0.39.0 // indirect
-	golang.org/x/sync v0.13.0 // indirect
+	golang.org/x/sync v0.14.0 // indirect
-	golang.org/x/text v0.24.0 // indirect
+	golang.org/x/text v0.25.0 // indirect
 	golang.org/x/tools v0.32.0 // indirect
 	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173 // indirect
 	google.golang.org/protobuf v1.36.6 // indirect

go.sum

@@ -198,9 +198,8 @@ github.com/toorop/go-dkim v0.0.0-20250226130143-9025cce95817 h1:q0hKh5a5FRkhuTb5
 github.com/toorop/go-dkim v0.0.0-20250226130143-9025cce95817/go.mod h1:BzWtXXrXzZUvMacR0oF/fbDDgUPO8L36tDMmRAf14ns=
 github.com/vardius/message-bus v1.1.5 h1:YSAC2WB4HRlwc4neFPTmT88kzzoiQ+9WRRbej/E/LZc=
 github.com/vardius/message-bus v1.1.5/go.mod h1:6xladCV2lMkUAE4bzzS85qKOiB5miV7aBVRafiTJGqw=
-github.com/vishvananda/netlink v1.3.0 h1:X7l42GfcV4S6E4vHTsw48qbrV+9PVojNfIhZcwQdrZk=
+github.com/vishvananda/netlink v1.3.1 h1:3AEMt62VKqz90r0tmNhog0r/PpWKmrEShJU0wJW6bV0=
-github.com/vishvananda/netlink v1.3.0/go.mod h1:i6NetklAujEcC6fK0JPjT8qSwWyO0HLn4UKG+hGqeJs=
+github.com/vishvananda/netlink v1.3.1/go.mod h1:ARtKouGSTGchR8aMwmkzC0qiNPrrWO5JS/XMVl45+b4=
-github.com/vishvananda/netns v0.0.4/go.mod h1:SpkAiCQRtJ6TvvxPnOSyH3BMl6unz3xZlaprSwhNNJM=
 github.com/vishvananda/netns v0.0.5 h1:DfiHV+j8bA32MFM7bfEunvT8IAqQ/NzSJHtcmW5zdEY=
 github.com/vishvananda/netns v0.0.5/go.mod h1:SpkAiCQRtJ6TvvxPnOSyH3BMl6unz3xZlaprSwhNNJM=
 github.com/xhit/go-simple-mail/v2 v2.16.0 h1:ouGy/Ww4kuaqu2E2UrDw7SvLaziWTB60ICLkIkNVccA=
@@ -221,8 +220,8 @@ golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf
 golang.org/x/crypto v0.16.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
 golang.org/x/crypto v0.17.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
 golang.org/x/crypto v0.18.0/go.mod h1:R0j02AL6hcrfOiy9T4ZYp/rcWeMxM3L6QYxlOuEG1mg=
-golang.org/x/crypto v0.37.0 h1:kJNSjF/Xp7kU0iB2Z+9viTPMW4EqqsrywMXLJOOsXSE=
+golang.org/x/crypto v0.38.0 h1:jt+WWG8IZlBnVbomuhg2Mdq0+BBQaHbtqHEFEigjUV8=
-golang.org/x/crypto v0.37.0/go.mod h1:vg+k43peMZ0pUMhYmVAWysMK35e6ioLh3wB8ZCAfbVc=
+golang.org/x/crypto v0.38.0/go.mod h1:MvrbAqul58NNYPKnOra203SB9vpuZW0e+RRZV+Ggqjw=
 golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 h1:R84qjqJb5nVJMxqWYb3np9L5ZsaDtB+a39EqjV0JSUM=
 golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0/go.mod h1:S9Xr4PYopiDyqSyp5NjCrhFrqg6A5zA2E/iPHPhqnS8=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
@@ -249,8 +248,8 @@ golang.org/x/oauth2 v0.30.0/go.mod h1:B++QgG3ZKulg6sRPGD/mqlHQs5rB3Ml9erfeDY7xKl
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.13.0 h1:AauUjRAJ9OSnvULf/ARrrVywoJDy0YS2AwQ98I37610=
+golang.org/x/sync v0.14.0 h1:woo0S4Yywslg6hp4eUFjTVOyKt0RookbpAHG4c1HmhQ=
-golang.org/x/sync v0.13.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.14.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -289,8 +288,8 @@ golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/text v0.24.0 h1:dd5Bzh4yt5KYA8f9CJHCP4FB4D51c2c6JvN37xJJkJ0=
+golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4=
-golang.org/x/text v0.24.0/go.mod h1:L8rBsPeo2pSS+xqN0d5u2ikmjtmoJbDBT1b7nHvFCdU=
+golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
@@ -322,8 +321,8 @@ gorm.io/driver/sqlserver v1.5.4 h1:xA+Y1KDNspv79q43bPyjDMUgHoYHLhXYmdFcYPobg8g=
 gorm.io/driver/sqlserver v1.5.4/go.mod h1:+frZ/qYmuna11zHPlh5oc2O6ZA/lS88Keb0XSH1Zh/g=
 gorm.io/gorm v1.25.7-0.20240204074919-46816ad31dde/go.mod h1:hbnx/Oo0ChWMn1BIhpy1oYozzpM15i4YPuHDmfYtwg8=
 gorm.io/gorm v1.25.7/go.mod h1:hbnx/Oo0ChWMn1BIhpy1oYozzpM15i4YPuHDmfYtwg8=
-gorm.io/gorm v1.25.12 h1:I0u8i2hWQItBq1WfE0o2+WuL9+8L21K9e2HHSTE/0f8=
+gorm.io/gorm v1.26.1 h1:ghB2gUI9FkS46luZtn6DLZ0f6ooBJ5IbVej2ENFDjRw=
-gorm.io/gorm v1.25.12/go.mod h1:xh7N7RHfYlNc5EmcI/El95gXusucDrQnHXe0+CgWcLQ=
+gorm.io/gorm v1.26.1/go.mod h1:8Z33v652h4//uMA76KjeDH8mJXPm1QNCYrMeatR0DOE=
 modernc.org/cc/v4 v4.26.0 h1:QMYvbVduUGH0rrO+5mqF/PSPPRZNpRtg2CLELy7vUpA=
 modernc.org/cc/v4 v4.26.0/go.mod h1:uVtb5OGqUKpoLWhqwNQo/8LwvoiEBLvZXIQ/SmO6mL0=
 modernc.org/ccgo/v4 v4.26.0 h1:gVzXaDzGeBYJ2uXTOpR8FR7OlksDOe9jxnjhIKCsiTc=

internal/app/api/core/assets/doc/v0_swagger.json

@@ -57,6 +57,52 @@
                 }
             }
         },
+        "/auth/login/{provider}/callback": {
+            "get": {
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "Authentication"
+                ],
+                "summary": "Handle the OAuth callback.",
+                "operationId": "auth_handleOauthCallbackGet",
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "type": "array",
+                            "items": {
+                                "$ref": "#/definitions/model.LoginProviderInfo"
+                            }
+                        }
+                    }
+                }
+            }
+        },
+        "/auth/login/{provider}/init": {
+            "get": {
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "Authentication"
+                ],
+                "summary": "Initiate the OAuth login flow.",
+                "operationId": "auth_handleOauthInitiateGet",
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "type": "array",
+                            "items": {
+                                "$ref": "#/definitions/model.LoginProviderInfo"
+                            }
+                        }
+                    }
+                }
+            }
+        },
         "/auth/logout": {
             "post": {
                 "produces": [

internal/app/api/core/assets/doc/v0_swagger.yaml

@@ -383,6 +383,8 @@ definitions:
         type: boolean
       MailLinkOnly:
         type: boolean
+      MinPasswordLength:
+        type: integer
       PersistentConfigSupported:
         type: boolean
       SelfProvisioning:
@@ -456,7 +458,22 @@ paths:
       summary: Get all available audit entries. Ordered by timestamp.
       tags:
       - Audit
-  /auth/{provider}/callback:
+  /auth/login:
+    post:
+      operationId: auth_handleLoginPost
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            items:
+              $ref: '#/definitions/model.LoginProviderInfo'
+            type: array
+      summary: Get all available external login providers.
+      tags:
+      - Authentication
+  /auth/login/{provider}/callback:
     get:
       operationId: auth_handleOauthCallbackGet
       produces:
@@ -471,7 +488,7 @@ paths:
       summary: Handle the OAuth callback.
       tags:
       - Authentication
-  /auth/{provider}/init:
+  /auth/login/{provider}/init:
     get:
       operationId: auth_handleOauthInitiateGet
       produces:
@@ -486,21 +503,6 @@ paths:
       summary: Initiate the OAuth login flow.
       tags:
       - Authentication
-  /auth/login:
-    post:
-      operationId: auth_handleLoginPost
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            items:
-              $ref: '#/definitions/model.LoginProviderInfo'
-            type: array
-      summary: Get all available external login providers.
-      tags:
-      - Authentication
   /auth/logout:
     post:
       operationId: auth_handleLogoutPost

internal/app/api/v0/handlers/endpoint_authentication.go

@@ -2,6 +2,7 @@ package handlers
 
 import (
 	"context"
+	"log/slog"
 	"net/http"
 	"net/url"
 	"strconv"
@@ -132,7 +133,7 @@ func (e AuthEndpoint) handleSessionInfoGet() http.HandlerFunc {
 // @Summary Initiate the OAuth login flow.
 // @Produce json
 // @Success 200 {object} []model.LoginProviderInfo
-// @Router /auth/{provider}/init [get]
+// @Router /auth/login/{provider}/init [get]
 func (e AuthEndpoint) handleOauthInitiateGet() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		currentSession := e.session.GetData(r.Context())
@@ -177,6 +178,8 @@ func (e AuthEndpoint) handleOauthInitiateGet() http.HandlerFunc {
 
 		authCodeUrl, state, nonce, err := e.authService.OauthLoginStep1(context.Background(), provider)
 		if err != nil {
+			slog.Debug("failed to create oauth auth code URL",
+				"provider", provider, "error", err)
 			if autoRedirect && e.isValidReturnUrl(returnTo) {
 				redirectToReturn()
 			} else {
@@ -211,7 +214,7 @@ func (e AuthEndpoint) handleOauthInitiateGet() http.HandlerFunc {
 // @Summary Handle the OAuth callback.
 // @Produce json
 // @Success 200 {object} []model.LoginProviderInfo
-// @Router /auth/{provider}/callback [get]
+// @Router /auth/login/{provider}/callback [get]
 func (e AuthEndpoint) handleOauthCallbackGet() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		currentSession := e.session.GetData(r.Context())
@@ -249,6 +252,8 @@ func (e AuthEndpoint) handleOauthCallbackGet() http.HandlerFunc {
 		oauthState := request.Query(r, "state")
 
 		if provider != currentSession.OauthProvider {
+			slog.Debug("invalid oauth provider in callback",
+				"expected", currentSession.OauthProvider, "got", provider, "state", oauthState)
 			if returnUrl != nil && e.isValidReturnUrl(returnUrl.String()) {
 				redirectToReturn()
 			} else {
@@ -258,6 +263,8 @@ func (e AuthEndpoint) handleOauthCallbackGet() http.HandlerFunc {
 			return
 		}
 		if oauthState != currentSession.OauthState {
+			slog.Debug("invalid oauth state in callback",
+				"expected", currentSession.OauthState, "got", oauthState, "provider", provider)
 			if returnUrl != nil && e.isValidReturnUrl(returnUrl.String()) {
 				redirectToReturn()
 			} else {
@@ -267,11 +274,13 @@ func (e AuthEndpoint) handleOauthCallbackGet() http.HandlerFunc {
 			return
 		}
 
-		loginCtx, cancel := context.WithTimeout(context.Background(), 1000*time.Second)
+		loginCtx, cancel := context.WithTimeout(context.Background(), 30*time.Second) // avoid long waits
 		user, err := e.authService.OauthLoginStep2(loginCtx, provider, currentSession.OauthNonce,
 			oauthCode)
 		cancel()
 		if err != nil {
+			slog.Debug("failed to process oauth code",
+				"provider", provider, "state", oauthState, "error", err)
 			if returnUrl != nil && e.isValidReturnUrl(returnUrl.String()) {
 				redirectToReturn()
 			} else {

internal/app/wireguard/wireguard.go

@@ -3,6 +3,7 @@ package wireguard
 import (
 	"context"
 	"log/slog"
+	"sync"
 	"time"
 
 	"github.com/h44z/wg-portal/internal/app"
@@ -76,6 +77,8 @@ type Manager struct {
 	db    InterfaceAndPeerDatabaseRepo
 	wg    InterfaceController
 	quick WgQuickController
+
+	userLockMap *sync.Map
 }
 
 func NewWireGuardManager(
@@ -86,11 +89,12 @@ func NewWireGuardManager(
 	db InterfaceAndPeerDatabaseRepo,
 ) (*Manager, error) {
 	m := &Manager{
-		cfg:   cfg,
+		cfg:         cfg,
-		bus:   bus,
+		bus:         bus,
-		wg:    wg,
+		wg:          wg,
-		db:    db,
+		db:          db,
-		quick: quick,
+		quick:       quick,
+		userLockMap: &sync.Map{},
 	}
 
 	m.connectToMessageBus()
@@ -117,6 +121,12 @@ func (m Manager) handleUserCreationEvent(user domain.User) {
 		return
 	}
 
+	_, loaded := m.userLockMap.LoadOrStore(user.Identifier, "create")
+	if loaded {
+		return // another goroutine is already handling this user
+	}
+	defer m.userLockMap.Delete(user.Identifier)
+
 	slog.Debug("handling new user event", "user", user.Identifier)
 
 	ctx := domain.SetUserInfo(context.Background(), domain.SystemAdminContextUserInfo())
@@ -132,6 +142,12 @@ func (m Manager) handleUserLoginEvent(userId domain.UserIdentifier) {
 		return
 	}
 
+	_, loaded := m.userLockMap.LoadOrStore(userId, "login")
+	if loaded {
+		return // another goroutine is already handling this user
+	}
+	defer m.userLockMap.Delete(userId)
+
 	userPeers, err := m.db.GetUserPeers(context.Background(), userId)
 	if err != nil {
 		slog.Error("failed to retrieve existing peers prior to default peer creation",

internal/app/wireguard/wireguard_peers.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"log/slog"
+	"slices"
 	"time"
 
 	"github.com/h44z/wg-portal/internal/app"
@@ -23,12 +24,24 @@ func (m Manager) CreateDefaultPeer(ctx context.Context, userId domain.UserIdenti
 		return fmt.Errorf("failed to fetch all interfaces: %w", err)
 	}
 
+	userPeers, err := m.db.GetUserPeers(context.Background(), userId)
+	if err != nil {
+		return fmt.Errorf("failed to retrieve existing peers prior to default peer creation: %w", err)
+	}
+
 	var newPeers []domain.Peer
 	for _, iface := range existingInterfaces {
 		if iface.Type != domain.InterfaceTypeServer {
 			continue // only create default peers for server interfaces
 		}
 
+		peerAlreadyCreated := slices.ContainsFunc(userPeers, func(peer domain.Peer) bool {
+			return peer.InterfaceIdentifier == iface.Identifier
+		})
+		if peerAlreadyCreated {
+			continue // skip creation if a peer already exists for this interface
+		}
+
 		peer, err := m.PreparePeer(ctx, iface.Identifier)
 		if err != nil {
 			return fmt.Errorf("failed to create default peer for interface %s: %w", iface.Identifier, err)

internal/config/config.go

@@ -190,6 +190,8 @@ func GetConfig() (*Config, error) {
 		return nil, fmt.Errorf("failed to load config from yaml: %w", err)
 	}
 
+	cfg.Web.Sanitize()
+
 	return cfg, nil
 }
 

internal/config/web.go

@@ -1,5 +1,7 @@
 package config
 
+import "strings"
+
 // WebConfig contains the configuration for the web server.
 type WebConfig struct {
 	// RequestLogging enables logging of all HTTP requests.
@@ -26,3 +28,7 @@ type WebConfig struct {
 	// KeyFile is the path to the TLS certificate key file.
 	KeyFile string `yaml:"key_file"`
 }
+
+func (c *WebConfig) Sanitize() {
+	c.ExternalUrl = strings.TrimRight(c.ExternalUrl, "/")
+}

internal/domain/peer.go

@@ -136,6 +136,7 @@ func (p *Peer) OverwriteUserEditableFields(userPeer *Peer, cfg *config.Config) {
 		p.Interface.PublicKey = userPeer.Interface.PublicKey
 		p.Interface.PrivateKey = userPeer.Interface.PrivateKey
 		p.PresharedKey = userPeer.PresharedKey
+		p.Identifier = userPeer.Identifier
 	}
 	p.Interface.Mtu = userPeer.Interface.Mtu
 	p.PersistentKeepalive = userPeer.PersistentKeepalive