chore: update readme

Bumps the minor-patch group with 3 updates in the /frontend directory: [lucide-react](https://github.com/lucide-icons/lucide/tree/HEAD/packages/lucide-react), [react-i18next](https://github.com/i18next/react-i18next) and [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node).


Updates `lucide-react` from 0.576.0 to 0.577.0
- [Release notes](https://github.com/lucide-icons/lucide/releases)
- [Commits](https://github.com/lucide-icons/lucide/commits/0.577.0/packages/lucide-react)

Updates `react-i18next` from 16.5.4 to 16.5.5
- [Changelog](https://github.com/i18next/react-i18next/blob/master/CHANGELOG.md)
- [Commits](https://github.com/i18next/react-i18next/compare/v16.5.4...v16.5.5)

Updates `@types/node` from 25.3.3 to 25.3.5
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: lucide-react
  dependency-version: 0.577.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor-patch
- dependency-name: react-i18next
  dependency-version: 16.5.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: minor-patch
- dependency-name: "@types/node"
  dependency-version: 25.3.5
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: minor-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

README.md

@@ -1,7 +1,7 @@
 <div align="center">
     <img alt="Tinyauth" title="Tinyauth" width="96" src="assets/logo-rounded.png">
     <h1>Tinyauth</h1>
-    <p>The simplest way to protect your apps with a login screen.</p>
+    <p>The tiniest authentication and authorization server you have ever seen.</p>
 </div>
 
 <div align="center">
@@ -14,7 +14,7 @@
 
 <br />
 
-Tinyauth is a simple authentication middleware that adds a simple login screen or OAuth with Google, Github or any other provider to all of your apps. It supports all the popular proxies like Traefik, Nginx and Caddy.
+Tinyauth is the simplest and tiniest authentication and authorization server you have ever seen. It is designed to both work as an authentication middleware for your apps, offering support for OAuth, LDAP and access-controls, and as a standalone authentication server. It supports all the popular proxies like Traefik, Nginx and Caddy.
 
 ![Screenshot](assets/screenshot.png)
 
@@ -26,7 +26,7 @@ Tinyauth is a simple authentication middleware that adds a simple login screen o
 
 ## Getting Started
 
-You can easily get started with Tinyauth by following the guide in the [documentation](https://tinyauth.app/docs/getting-started). There is also an available [docker compose](./docker-compose.example.yml) file that has Traefik, Whoami and Tinyauth to demonstrate its capabilities.
+You can get started with Tinyauth by following the guide in the [documentation](https://tinyauth.app/docs/getting-started). There is also an available [docker-compose](./docker-compose.example.yml) file that has Traefik, Whoami and Tinyauth to demonstrate its capabilities (keep in mind that this file lives in the development branch so it may have updates that are not yet released).
 
 ## Demo
 
@@ -40,15 +40,15 @@ If you wish to contribute to the documentation head over to the [repository](htt
 
 ## Discord
 
-Tinyauth has a [discord](https://discord.gg/eHzVaCzRRd) server. Feel free to hop in to chat about self-hosting, homelabs and of course Tinyauth. See you there!
+Tinyauth has a [Discord](https://discord.gg/eHzVaCzRRd) server. Feel free to hop in to chat about self-hosting, homelabs and of course Tinyauth. See you there!
 
 ## Contributing
 
-All contributions to the codebase are welcome! If you have any free time feel free to pick up an [issue](https://github.com/steveiliop56/tinyauth/issues) or add your own missing features. Make sure to check out the [contributing guide](./CONTRIBUTING.md) for instructions on how to get the development server up and running.
+All contributions to the codebase are welcome! If you have any free time, feel free to pick up an [issue](https://github.com/steveiliop56/tinyauth/issues) or add your own missing features. Make sure to check out the [contributing guide](./CONTRIBUTING.md) for instructions on how to get the development server up and running.
 
 ## Localization
 
-If you would like to help translate Tinyauth into more languages, visit the [Crowdin](https://crowdin.com/project/tinyauth) page.
+If you like, you can help translate Tinyauth into more languages by visiting the [Crowdin](https://crowdin.com/project/tinyauth) page.
 
 ## License
 

cmd/tinyauth/healthcheck.go

@@ -28,15 +28,18 @@ func healthcheckCmd() *cli.Command {
 		Run: func(args []string) error {
 			tlog.NewSimpleLogger().Init()
 
-			appUrl := "http://127.0.0.1:3000"
-
 			srvAddr := os.Getenv("TINYAUTH_SERVER_ADDRESS")
-			srvPort := os.Getenv("TINYAUTH_SERVER_PORT")
-
-			if srvAddr != "" && srvPort != "" {
-				appUrl = fmt.Sprintf("http://%s:%s", srvAddr, srvPort)
+			if srvAddr == "" {
+				srvAddr = "127.0.0.1"
 			}
 
+			srvPort := os.Getenv("TINYAUTH_SERVER_PORT")
+			if srvPort == "" {
+				srvPort = "3000"
+			}
+
+			appUrl := fmt.Sprintf("http://%s:%s", srvAddr, srvPort)
+
 			if len(args) > 0 {
 				appUrl = args[0]
 			}

frontend/bun.lock

@@ -20,13 +20,13 @@
         "i18next-browser-languagedetector": "^8.2.1",
         "i18next-resources-to-backend": "^1.2.1",
         "input-otp": "^1.4.2",
-        "lucide-react": "^0.576.0",
+        "lucide-react": "^0.577.0",
         "next-themes": "^0.4.6",
         "radix-ui": "^1.4.3",
         "react": "^19.2.4",
         "react-dom": "^19.2.4",
         "react-hook-form": "^7.71.2",
-        "react-i18next": "^16.5.4",
+        "react-i18next": "^16.5.5",
         "react-markdown": "^10.1.0",
         "react-router": "^7.13.1",
         "sonner": "^2.0.7",
@@ -37,7 +37,7 @@
       "devDependencies": {
         "@eslint/js": "^10.0.1",
         "@tanstack/eslint-plugin-query": "^5.91.4",
-        "@types/node": "^25.3.3",
+        "@types/node": "^25.3.5",
         "@types/react": "^19.2.14",
         "@types/react-dom": "^19.2.3",
         "@vitejs/plugin-react": "^5.1.4",
@@ -417,7 +417,7 @@
 
     "@types/ms": ["@types/ms@2.1.0", "", {}, "sha512-GsCCIZDE/p3i96vtEqx+7dBUGXrc7zeSK3wwPHIaRThS+9OhWIXRqzs4d6k1SVU8g91DrNRWxWUGhp5KXQb2VA=="],
 
-    "@types/node": ["@types/node@25.3.3", "", { "dependencies": { "undici-types": "~7.18.0" } }, "sha512-DpzbrH7wIcBaJibpKo9nnSQL0MTRdnWttGyE5haGwK86xgMOkFLp7vEyfQPGLOJh5wNYiJ3V9PmUMDhV9u8kkQ=="],
+    "@types/node": ["@types/node@25.3.5", "", { "dependencies": { "undici-types": "~7.18.0" } }, "sha512-oX8xrhvpiyRCQkG1MFchB09f+cXftgIXb3a7UUa4Y3wpmZPw5tyZGTLWhlESOLq1Rq6oDlc8npVU2/9xiCuXMA=="],
 
     "@types/react": ["@types/react@19.2.14", "", { "dependencies": { "csstype": "^3.2.2" } }, "sha512-ilcTH/UniCkMdtexkoCN0bI7pMcJDvmQFPvuPvmEaYA/NSfFTAgdUSLAoVjaRJm7+6PvcM+q1zYOwS4wTYMF9w=="],
 
@@ -723,7 +723,7 @@
 
     "lru-cache": ["lru-cache@5.1.1", "", { "dependencies": { "yallist": "^3.0.2" } }, "sha512-KpNARQA3Iwv+jTA0utUVVbrh+Jlrr1Fv0e56GGzAFOXN7dk/FviaDW8LHmK52DlcH4WP2n6gI8vN1aesBFgo9w=="],
 
-    "lucide-react": ["lucide-react@0.576.0", "", { "peerDependencies": { "react": "^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0" } }, "sha512-koNxU14BXrxUfZQ9cUaP0ES1uyPZKYDjk31FQZB6dQ/x+tXk979sVAn9ppZ/pVeJJyOxVM8j1E+8QEuSc02Vug=="],
+    "lucide-react": ["lucide-react@0.577.0", "", { "peerDependencies": { "react": "^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0" } }, "sha512-4LjoFv2eEPwYDPg/CUdBJQSDfPyzXCRrVW1X7jrx/trgxnxkHFjnVZINbzvzxjN70dxychOfg+FTYwBiS3pQ5A=="],
 
     "magic-string": ["magic-string@0.30.21", "", { "dependencies": { "@jridgewell/sourcemap-codec": "^1.5.5" } }, "sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ=="],
 
@@ -843,7 +843,7 @@
 
     "react-hook-form": ["react-hook-form@7.71.2", "", { "peerDependencies": { "react": "^16.8.0 || ^17 || ^18 || ^19" } }, "sha512-1CHvcDYzuRUNOflt4MOq3ZM46AronNJtQ1S7tnX6YN4y72qhgiUItpacZUAQ0TyWYci3yz1X+rXaSxiuEm86PA=="],
 
-    "react-i18next": ["react-i18next@16.5.4", "", { "dependencies": { "@babel/runtime": "^7.28.4", "html-parse-stringify": "^3.0.1", "use-sync-external-store": "^1.6.0" }, "peerDependencies": { "i18next": ">= 25.6.2", "react": ">= 16.8.0", "typescript": "^5" }, "optionalPeers": ["typescript"] }, "sha512-6yj+dcfMncEC21QPhOTsW8mOSO+pzFmT6uvU7XXdvM/Cp38zJkmTeMeKmTrmCMD5ToT79FmiE/mRWiYWcJYW4g=="],
+    "react-i18next": ["react-i18next@16.5.5", "", { "dependencies": { "@babel/runtime": "^7.28.4", "html-parse-stringify": "^3.0.1", "use-sync-external-store": "^1.6.0" }, "peerDependencies": { "i18next": ">= 25.6.2", "react": ">= 16.8.0", "typescript": "^5" }, "optionalPeers": ["typescript"] }, "sha512-5Z35e2JMALNR16FK/LDNQoAatQTVuO/4m4uHrIzewOPXIyf75gAHzuNLSWwmj5lRDJxDvXRJDECThkxWSAReng=="],
 
     "react-markdown": ["react-markdown@10.1.0", "", { "dependencies": { "@types/hast": "^3.0.0", "@types/mdast": "^4.0.0", "devlop": "^1.0.0", "hast-util-to-jsx-runtime": "^2.0.0", "html-url-attributes": "^3.0.0", "mdast-util-to-hast": "^13.0.0", "remark-parse": "^11.0.0", "remark-rehype": "^11.0.0", "unified": "^11.0.0", "unist-util-visit": "^5.0.0", "vfile": "^6.0.0" }, "peerDependencies": { "@types/react": ">=18", "react": ">=18" } }, "sha512-qKxVopLT/TyA6BX3Ue5NwabOsAzm0Q7kAPwq6L+wWDwisYs7R8vZ0nRXqq6rkueboxpkjvLGU9fWifiX/ZZFxQ=="],
 

frontend/package.json

@@ -26,13 +26,13 @@
     "i18next-browser-languagedetector": "^8.2.1",
     "i18next-resources-to-backend": "^1.2.1",
     "input-otp": "^1.4.2",
-    "lucide-react": "^0.576.0",
+    "lucide-react": "^0.577.0",
     "next-themes": "^0.4.6",
     "radix-ui": "^1.4.3",
     "react": "^19.2.4",
     "react-dom": "^19.2.4",
     "react-hook-form": "^7.71.2",
-    "react-i18next": "^16.5.4",
+    "react-i18next": "^16.5.5",
     "react-markdown": "^10.1.0",
     "react-router": "^7.13.1",
     "sonner": "^2.0.7",
@@ -43,7 +43,7 @@
   "devDependencies": {
     "@eslint/js": "^10.0.1",
     "@tanstack/eslint-plugin-query": "^5.91.4",
-    "@types/node": "^25.3.3",
+    "@types/node": "^25.3.5",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
     "@vitejs/plugin-react": "^5.1.4",

internal/controller/oidc_controller.go

@@ -24,7 +24,7 @@ type OIDCController struct {
 
 type AuthorizeCallback struct {
 	Code  string `url:"code"`
-	State string `url:"state"`
+	State string `url:"state,omitempty"`
 }
 
 type TokenRequest struct {

internal/service/oidc_service.go

@@ -79,7 +79,7 @@ type AuthorizeRequest struct {
 	ResponseType string `json:"response_type" binding:"required"`
 	ClientID     string `json:"client_id" binding:"required"`
 	RedirectURI  string `json:"redirect_uri" binding:"required"`
-	State        string `json:"state" binding:"required"`
+	State        string `json:"state"`
 	Nonce        string `json:"nonce"`
 }
 
@@ -161,6 +161,7 @@ func (service *OIDCService) Init() error {
 			Type:  "RSA PRIVATE KEY",
 			Bytes: der,
 		})
+		tlog.App.Trace().Str("type", "RSA PRIVATE KEY").Msg("Generated private RSA key")
 		err = os.WriteFile(service.config.PrivateKeyPath, encoded, 0600)
 		if err != nil {
 			return err
@@ -171,6 +172,7 @@ func (service *OIDCService) Init() error {
 		if block == nil {
 			return errors.New("failed to decode private key")
 		}
+		tlog.App.Trace().Str("type", block.Type).Msg("Loaded private key")
 		privateKey, err = x509.ParsePKCS1PrivateKey(block.Bytes)
 		if err != nil {
 			return err
@@ -194,6 +196,7 @@ func (service *OIDCService) Init() error {
 			Type:  "RSA PUBLIC KEY",
 			Bytes: der,
 		})
+		tlog.App.Trace().Str("type", "RSA PUBLIC KEY").Msg("Generated public RSA key")
 		err = os.WriteFile(service.config.PublicKeyPath, encoded, 0644)
 		if err != nil {
 			return err
@@ -204,11 +207,23 @@ func (service *OIDCService) Init() error {
 		if block == nil {
 			return errors.New("failed to decode public key")
 		}
-		publicKey, err := x509.ParsePKCS1PublicKey(block.Bytes)
-		if err != nil {
-			return err
+		tlog.App.Trace().Str("type", block.Type).Msg("Loaded public key")
+		switch block.Type {
+		case "RSA PUBLIC KEY":
+			publicKey, err := x509.ParsePKCS1PublicKey(block.Bytes)
+			if err != nil {
+				return err
+			}
+			service.publicKey = publicKey
+		case "PUBLIC KEY":
+			publicKey, err := x509.ParsePKIXPublicKey(block.Bytes)
+			if err != nil {
+				return err
+			}
+			service.publicKey = publicKey.(crypto.PublicKey)
+		default:
+			return fmt.Errorf("unsupported public key type: %s", block.Type)
 		}
-		service.publicKey = publicKey
 	}
 
 	// We will reorganize the client into a map with the client ID as the key
@@ -366,6 +381,16 @@ func (service *OIDCService) generateIDToken(client config.OIDCClientConfig, user
 	createdAt := time.Now().Unix()
 	expiresAt := time.Now().Add(time.Duration(service.config.SessionExpiry) * time.Second).Unix()
 
+	hasher := sha256.New()
+
+	der := x509.MarshalPKCS1PublicKey(&service.privateKey.PublicKey)
+
+	if der == nil {
+		return "", errors.New("failed to marshal public key")
+	}
+
+	hasher.Write(der)
+
 	signer, err := jose.NewSigner(jose.SigningKey{
 		Algorithm: jose.RS256,
 		Key:       service.privateKey,
@@ -373,6 +398,7 @@ func (service *OIDCService) generateIDToken(client config.OIDCClientConfig, user
 		ExtraHeaders: map[jose.HeaderKey]any{
 			"typ": "jwt",
 			"jku": fmt.Sprintf("%s/.well-known/jwks.json", service.issuer),
+			"kid": base64.URLEncoding.EncodeToString(hasher.Sum(nil)),
 		},
 	})