i18n: authorize page error messages

Makefile

@@ -61,11 +61,11 @@ test:
 
 # Development
 develop:
-	docker compose -f $(DEV_COMPOSE) up --force-recreate --pull=always --remove-orphans
+	docker compose -f $(DEV_COMPOSE) up --force-recreate --pull=always --remove-orphans --build
 
 # Development - Infisical
 develop-infisical:
-	infisical run --env=dev -- docker compose -f $(DEV_COMPOSE) up --force-recreate --pull=always --remove-orphans
+	infisical run --env=dev -- docker compose -f $(DEV_COMPOSE) up --force-recreate --pull=always --remove-orphans --build
 
 # Production
 prod:

frontend/src/lib/i18n/locales/en-US.json

@@ -68,6 +68,8 @@
     "authorizeLoadingSubtitle": "Please wait while we load the client information.",
     "authorizeSuccessTitle": "Authorized",
     "authorizeSuccessSubtitle": "You will be redirected to the app in a few seconds.",
+    "authorizeErrorClientInfo": "An error occurred while loading the client information. Please try again later.",
+    "authorizeErrorMissingParams": "The following parameters are missing: {{missingParams}}",
     "openidScopeName": "OpenID Connect",
     "openidScopeDescription": "Allows the app to access your OpenID Connect information.",
     "emailScopeName": "Email",
@@ -75,5 +77,5 @@
     "profileScopeName": "Profile",
     "profileScopeDescription": "Allows the app to access your profile information.",
     "groupsScopeName": "Groups",
-    "groupsScopeDescription": "Allows the app to access the groups in which you are a member."
+    "groupsScopeDescription": "Allows the app to access your group information."
 }

frontend/src/lib/i18n/locales/en.json

@@ -68,6 +68,8 @@
     "authorizeLoadingSubtitle": "Please wait while we load the client information.",
     "authorizeSuccessTitle": "Authorized",
     "authorizeSuccessSubtitle": "You will be redirected to the app in a few seconds.",
+    "authorizeErrorClientInfo": "An error occurred while loading the client information. Please try again later.",
+    "authorizeErrorMissingParams": "The following parameters are missing: {{missingParams}}",
     "openidScopeName": "OpenID Connect",
     "openidScopeDescription": "Allows the app to access your OpenID Connect information.",
     "emailScopeName": "Email",
@@ -75,5 +77,5 @@
     "profileScopeName": "Profile",
     "profileScopeDescription": "Allows the app to access your profile information.",
     "groupsScopeName": "Groups",
-    "groupsScopeDescription": "Allows the app to access the groups in which you are a member."
+    "groupsScopeDescription": "Allows the app to access your group information."
 }

frontend/src/pages/authorize-page.tsx

@@ -10,7 +10,7 @@ import {
   CardFooter,
   CardContent,
 } from "@/components/ui/card";
-import { getOidcClientInfoScehma } from "@/schemas/oidc-schemas";
+import { getOidcClientInfoSchema } from "@/schemas/oidc-schemas";
 import { Button } from "@/components/ui/button";
 import axios from "axios";
 import { toast } from "sonner";
@@ -73,13 +73,13 @@ export const AuthorizePage = () => {
     isOidc,
     compiled: compiledOIDCParams,
   } = useOIDCParams(searchParams);
-  const scopes = props.scope.split(" ");
+  const scopes = props.scope ? props.scope.split(" ").filter(Boolean) : [];
 
   const getClientInfo = useQuery({
     queryKey: ["client", props.client_id],
     queryFn: async () => {
       const res = await fetch(`/api/oidc/clients/${props.client_id}`);
-      const data = await getOidcClientInfoScehma.parseAsync(await res.json());
+      const data = await getOidcClientInfoSchema.parseAsync(await res.json());
       return data;
     },
     enabled: isOidc,
@@ -109,19 +109,19 @@ export const AuthorizePage = () => {
     },
   });
 
-  if (!isLoggedIn) {
-    return <Navigate to={`/login?${compiledOIDCParams}`} replace />;
-  }
-
   if (missingParams.length > 0) {
     return (
       <Navigate
-        to={`/error?error=${encodeURIComponent(`Missing parameters: ${missingParams.join(", ")}`)}`}
+        to={`/error?error=${encodeURIComponent(t("authorizeErrorMissingParams", { missingParams: missingParams.join(", ") }))}`}
         replace
       />
     );
   }
 
+  if (!isLoggedIn) {
+    return <Navigate to={`/login?${compiledOIDCParams}`} replace />;
+  }
+
   if (getClientInfo.isLoading) {
     return (
       <Card className="min-w-xs sm:min-w-sm">
@@ -138,7 +138,7 @@ export const AuthorizePage = () => {
   if (getClientInfo.isError) {
     return (
       <Navigate
-        to={`/error?error=${encodeURIComponent(`Failed to load client information`)}`}
+        to={`/error?error=${encodeURIComponent(t("authorizeErrorClientInfo"))}`}
         replace
       />
     );

frontend/src/pages/login-page.tsx

@@ -90,7 +90,9 @@ export const LoginPage = () => {
     mutationKey: ["login"],
     onSuccess: (data) => {
       if (data.data.totpPending) {
-        window.location.replace(`/totp?${compiledOIDCParams}`);
+        window.location.replace(
+          `/totp?redirect_uri=${encodeURIComponent(props.redirect_uri)}`,
+        );
         return;
       }
 
@@ -149,6 +151,10 @@ export const LoginPage = () => {
     [],
   );
 
+  if (isLoggedIn && isOidc) {
+    return <Navigate to={`/authorize?${compiledOIDCParams}`} replace />;
+  }
+
   if (isLoggedIn && props.redirect_uri !== "") {
     return (
       <Navigate

frontend/src/schemas/oidc-schemas.ts

@@ -1,5 +1,5 @@
 import { z } from "zod";
 
-export const getOidcClientInfoScehma = z.object({
+export const getOidcClientInfoSchema = z.object({
   name: z.string(),
 });

frontend/vite.config.ts

@@ -24,6 +24,11 @@ export default defineConfig({
         changeOrigin: true,
         rewrite: (path) => path.replace(/^\/resources/, ""),
       },
+      "/.well-known": {
+        target: "http://tinyauth-backend:3000/.well-known",
+        changeOrigin: true,
+        rewrite: (path) => path.replace(/^\/\.well-known/, ""),
+      },
     },
     allowedHosts: true,
   },

go.mod

@@ -61,6 +61,7 @@ require (
 	github.com/gabriel-vasile/mimetype v1.4.10 // indirect
 	github.com/gin-contrib/sse v1.1.0 // indirect
 	github.com/go-asn1-ber/asn1-ber v1.5.8-0.20250403174932-29230038a667 // indirect
+	github.com/go-jose/go-jose/v4 v4.1.3 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect

go.sum

@@ -103,6 +103,8 @@ github.com/gin-gonic/gin v1.11.0 h1:OW/6PLjyusp2PPXtyxKHU0RbX6I/l28FTdDlae5ueWk=
 github.com/gin-gonic/gin v1.11.0/go.mod h1:+iq/FyxlGzII0KHiBGjuNn4UNENUlKbGlNmc+W50Dls=
 github.com/go-asn1-ber/asn1-ber v1.5.8-0.20250403174932-29230038a667 h1:BP4M0CvQ4S3TGls2FvczZtj5Re/2ZzkV9VwqPHH/3Bo=
 github.com/go-asn1-ber/asn1-ber v1.5.8-0.20250403174932-29230038a667/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
+github.com/go-jose/go-jose/v4 v4.1.3 h1:CVLmWDhDVRa6Mi/IgCgaopNosCaHz7zrMeF9MlZRkrs=
+github.com/go-jose/go-jose/v4 v4.1.3/go.mod h1:x4oUasVrzR7071A4TnHLGSPpNOm2a21K9Kf04k1rs08=
 github.com/go-ldap/ldap/v3 v3.4.12 h1:1b81mv7MagXZ7+1r7cLTWmyuTqVqdwbtJSjC0DAp9s4=
 github.com/go-ldap/ldap/v3 v3.4.12/go.mod h1:+SPAGcTtOfmGsCb3h1RFiq4xpp4N636G75OEace8lNo=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=

internal/bootstrap/router_bootstrap.go

@@ -113,5 +113,9 @@ func (app *BootstrapApp) setupRouter() (*gin.Engine, error) {
 
 	healthController.SetupRoutes()
 
+	wellknownController := controller.NewWellKnownController(controller.WellKnownControllerConfig{}, app.services.oidcService, engine)
+
+	wellknownController.SetupRoutes()
+
 	return engine, nil
 }

internal/controller/oidc_controller.go

@@ -150,7 +150,7 @@ func (controller *OIDCController) Authorize(c *gin.Context) {
 	}
 
 	// We also need a snapshot of the user that authorized this (skip if no openid scope)
-	if slices.Contains(strings.Split(req.Scope, " "), "openid") {
+	if slices.Contains(strings.Fields(req.Scope), "openid") {
 		err = controller.oidc.StoreUserinfo(c, sub, userContext, req)
 
 		if err != nil {
@@ -233,14 +233,14 @@ func (controller *OIDCController) Token(c *gin.Context) {
 		entry, err := controller.oidc.GetCodeEntry(c, controller.oidc.Hash(req.Code))
 		if err != nil {
 			if errors.Is(err, service.ErrCodeNotFound) {
-				tlog.App.Warn().Str("code", req.Code).Msg("Code not found")
+				tlog.App.Warn().Msg("Code not found")
 				c.JSON(400, gin.H{
 					"error": "invalid_grant",
 				})
 				return
 			}
 			if errors.Is(err, service.ErrCodeExpired) {
-				tlog.App.Warn().Str("code", req.Code).Msg("Code expired")
+				tlog.App.Warn().Msg("Code expired")
 				c.JSON(400, gin.H{
 					"error": "invalid_grant",
 				})
@@ -273,7 +273,7 @@ func (controller *OIDCController) Token(c *gin.Context) {
 
 		tokenResponse = tokenRes
 	case "refresh_token":
-		tokenRes, err := controller.oidc.RefreshAccessToken(c, req.RefreshToken)
+		tokenRes, err := controller.oidc.RefreshAccessToken(c, req.RefreshToken, rclientId)
 
 		if err != nil {
 			if errors.Is(err, service.ErrTokenExpired) {
@@ -284,6 +284,14 @@ func (controller *OIDCController) Token(c *gin.Context) {
 				return
 			}
 
+			if errors.Is(err, service.ErrInvalidClient) {
+				tlog.App.Error().Err(err).Msg("Invalid client")
+				c.JSON(401, gin.H{
+					"error": "invalid_grant",
+				})
+				return
+			}
+
 			tlog.App.Error().Err(err).Msg("Failed to refresh access token")
 			c.JSON(400, gin.H{
 				"error": "server_error",

internal/controller/oidc_controller_test.go

@@ -176,6 +176,8 @@ func TestOIDCController(t *testing.T) {
 
 	req, err = http.NewRequest("POST", "/api/oidc/token", strings.NewReader(params.Encode()))
 
+	assert.NilError(t, err)
+
 	req.Header.Set("content-type", "application/x-www-form-urlencoded")
 	req.SetBasicAuth("some-client-id", "some-client-secret")
 

internal/controller/well_known_controller.go

@@ -0,0 +1,85 @@
+package controller
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/steveiliop56/tinyauth/internal/service"
+)
+
+type OpenIDConnectConfiguration struct {
+	Issuer                            string   `json:"issuer"`
+	AuthorizationEndpoint             string   `json:"authorization_endpoint"`
+	TokenEndpoint                     string   `json:"token_endpoint"`
+	UserinfoEndpoint                  string   `json:"userinfo_endpoint"`
+	JwksUri                           string   `json:"jwks_uri"`
+	ScopesSupported                   []string `json:"scopes_supported"`
+	ResponseTypesSupported            []string `json:"response_types_supported"`
+	GrantTypesSupported               []string `json:"grant_types_supported"`
+	SubjectTypesSupported             []string `json:"subject_types_supported"`
+	IDTokenSigningAlgValuesSupported  []string `json:"id_token_signing_alg_values_supported"`
+	TokenEndpointAuthMethodsSupported []string `json:"token_endpoint_auth_methods_supported"`
+	ClaimsSupported                   []string `json:"claims_supported"`
+	ServiceDocumentation              string   `json:"service_documentation"`
+}
+
+type WellKnownControllerConfig struct{}
+
+type WellKnownController struct {
+	config WellKnownControllerConfig
+	engine *gin.Engine
+	oidc   *service.OIDCService
+}
+
+func NewWellKnownController(config WellKnownControllerConfig, oidc *service.OIDCService, engine *gin.Engine) *WellKnownController {
+	return &WellKnownController{
+		config: config,
+		oidc:   oidc,
+		engine: engine,
+	}
+}
+
+func (controller *WellKnownController) SetupRoutes() {
+	controller.engine.GET("/.well-known/openid-configuration", controller.OpenIDConnectConfiguration)
+	controller.engine.GET("/.well-known/jwks.json", controller.JWKS)
+}
+
+func (controller *WellKnownController) OpenIDConnectConfiguration(c *gin.Context) {
+	issuer := controller.oidc.GetIssuer()
+	c.JSON(200, OpenIDConnectConfiguration{
+		Issuer:                            issuer,
+		AuthorizationEndpoint:             fmt.Sprintf("%s/authorize", issuer),
+		TokenEndpoint:                     fmt.Sprintf("%s/api/oidc/token", issuer),
+		UserinfoEndpoint:                  fmt.Sprintf("%s/api/oidc/userinfo", issuer),
+		JwksUri:                           fmt.Sprintf("%s/.well-known/jwks.json", issuer),
+		ScopesSupported:                   service.SupportedScopes,
+		ResponseTypesSupported:            service.SupportedResponseTypes,
+		GrantTypesSupported:               service.SupportedGrantTypes,
+		SubjectTypesSupported:             []string{"pairwise"},
+		IDTokenSigningAlgValuesSupported:  []string{"RS256"},
+		TokenEndpointAuthMethodsSupported: []string{"client_secret_basic"},
+		ClaimsSupported:                   []string{"sub", "updated_at", "name", "preferred_username", "email", "groups"},
+		ServiceDocumentation:              "https://tinyauth.app/docs/reference/openid",
+	})
+}
+
+func (controller *WellKnownController) JWKS(c *gin.Context) {
+	jwks, err := controller.oidc.GetJWK()
+
+	if err != nil {
+		c.JSON(500, gin.H{
+			"status":  "500",
+			"message": "failed to get JWK",
+		})
+		return
+	}
+
+	c.Header("content-type", "application/json")
+
+	c.Writer.WriteString(`{"keys":[`)
+	c.Writer.Write(jwks)
+	c.Writer.WriteString(`]}`)
+
+	c.Status(http.StatusOK)
+}

internal/middleware/ui_middleware.go

@@ -9,6 +9,7 @@ import (
 	"time"
 
 	"github.com/steveiliop56/tinyauth/internal/assets"
+	"github.com/steveiliop56/tinyauth/internal/utils/tlog"
 
 	"github.com/gin-gonic/gin"
 )
@@ -39,11 +40,10 @@ func (m *UIMiddleware) Middleware() gin.HandlerFunc {
 	return func(c *gin.Context) {
 		path := strings.TrimPrefix(c.Request.URL.Path, "/")
 
+		tlog.App.Debug().Str("path", path).Msg("path")
+
 		switch strings.SplitN(path, "/", 2)[0] {
-		case "api":
-			c.Next()
-			return
-		case "resources":
+		case "api", "resources", ".well-known":
 			c.Next()
 			return
 		default:

internal/service/oidc_service.go

@@ -8,6 +8,7 @@ import (
 	"crypto/sha256"
 	"crypto/x509"
 	"database/sql"
+	"encoding/json"
 	"encoding/pem"
 	"errors"
 	"fmt"
@@ -17,14 +18,12 @@ import (
 	"time"
 
 	"github.com/gin-gonic/gin"
+	"github.com/go-jose/go-jose/v4"
 	"github.com/steveiliop56/tinyauth/internal/config"
 	"github.com/steveiliop56/tinyauth/internal/repository"
 	"github.com/steveiliop56/tinyauth/internal/utils"
 	"github.com/steveiliop56/tinyauth/internal/utils/tlog"
 	"golang.org/x/exp/slices"
-
-	// Should probably switch to another package but for now this works
-	"golang.org/x/oauth2/jws"
 )
 
 var (
@@ -38,8 +37,17 @@ var (
 	ErrCodeNotFound  = errors.New("code_not_found")
 	ErrTokenNotFound = errors.New("token_not_found")
 	ErrTokenExpired  = errors.New("token_expired")
+	ErrInvalidClient = errors.New("invalid_client")
 )
 
+type ClaimSet struct {
+	Iss string `json:"iss"`
+	Aud string `json:"aud"`
+	Sub string `json:"sub"`
+	Iat int64  `json:"iat"`
+	Exp int64  `json:"exp"`
+}
+
 type UserinfoResponse struct {
 	Sub               string   `json:"sub"`
 	Name              string   `json:"name"`
@@ -205,7 +213,7 @@ func (service *OIDCService) Init() error {
 }
 
 func (service *OIDCService) GetIssuer() string {
-	return service.config.Issuer
+	return service.issuer
 }
 
 func (service *OIDCService) GetClient(id string) (config.OIDCClientConfig, bool) {
@@ -333,7 +341,21 @@ func (service *OIDCService) generateIDToken(client config.OIDCClientConfig, sub
 	createdAt := time.Now().Unix()
 	expiresAt := time.Now().Add(time.Duration(service.config.SessionExpiry) * time.Second).Unix()
 
-	claims := jws.ClaimSet{
+	signer, err := jose.NewSigner(jose.SigningKey{
+		Algorithm: jose.RS256,
+		Key:       service.privateKey,
+	}, &jose.SignerOptions{
+		ExtraHeaders: map[jose.HeaderKey]any{
+			"typ": "jwt",
+			"jku": fmt.Sprintf("%s/.well-known/jwks.json", service.issuer),
+		},
+	})
+
+	if err != nil {
+		return "", err
+	}
+
+	claims := ClaimSet{
 		Iss: service.issuer,
 		Aud: client.ClientID,
 		Sub: sub,
@@ -341,12 +363,19 @@ func (service *OIDCService) generateIDToken(client config.OIDCClientConfig, sub
 		Exp: expiresAt,
 	}
 
-	header := jws.Header{
-		Algorithm: "RS256",
-		Typ:       "JWT",
+	payload, err := json.Marshal(claims)
+
+	if err != nil {
+		return "", err
 	}
 
-	token, err := jws.Encode(&header, &claims, service.privateKey)
+	object, err := signer.Sign(payload)
+
+	if err != nil {
+		return "", err
+	}
+
+	token, err := object.CompactSerialize()
 
 	if err != nil {
 		return "", err
@@ -396,7 +425,7 @@ func (service *OIDCService) GenerateAccessToken(c *gin.Context, client config.OI
 	return tokenResponse, nil
 }
 
-func (service *OIDCService) RefreshAccessToken(c *gin.Context, refreshToken string) (TokenResponse, error) {
+func (service *OIDCService) RefreshAccessToken(c *gin.Context, refreshToken string, reqClientId string) (TokenResponse, error) {
 	entry, err := service.queries.GetOidcTokenByRefreshToken(c, service.Hash(refreshToken))
 
 	if err != nil {
@@ -410,6 +439,11 @@ func (service *OIDCService) RefreshAccessToken(c *gin.Context, refreshToken stri
 		return TokenResponse{}, ErrTokenExpired
 	}
 
+	// Ensure the client ID in the request matches the client ID in the token
+	if entry.ClientID != reqClientId {
+		return TokenResponse{}, ErrInvalidClient
+	}
+
 	idToken, err := service.generateIDToken(config.OIDCClientConfig{
 		ClientID: entry.ClientID,
 	}, entry.Sub)
@@ -595,3 +629,13 @@ func (service *OIDCService) Cleanup() {
 		}
 	}
 }
+
+func (service *OIDCService) GetJWK() ([]byte, error) {
+	jwk := jose.JSONWebKey{
+		Key:       service.privateKey,
+		Algorithm: string(jose.RS256),
+		Use:       "sig",
+	}
+
+	return jwk.Public().MarshalJSON()
+}