Add logout functionality and expose refresh token retrieval

- Implemented GinLogout function to handle user logout, including revoking access and refresh tokens, clearing authentication cookies, and returning a success response.
- Added public method GetRefreshToken to retrieve the refresh token from the request, enhancing token management.
- Updated user routing to link the logout endpoint to the new GinLogout function, improving the user authentication flow.

openapi/oauth/guard.go

@@ -153,6 +153,11 @@ func (s *Service) getRefreshToken(c *gin.Context) string {
 	return strings.TrimPrefix(token, "Bearer ")
 }
 
+// GetRefreshToken gets the refresh token from the request (public method)
+func (s *Service) GetRefreshToken(c *gin.Context) string {
+	return s.getRefreshToken(c)
+}
+
 // Get Session ID from cookies, headers, or query string
 func (s *Service) getSessionID(c *gin.Context) string {
 

openapi/user/login.go

@@ -438,6 +438,40 @@ func generateSessionID() string {
 	return session.ID()
 }
 
+// GinLogout handles user logout
+func GinLogout(c *gin.Context) {
+	ctx := c.Request.Context()
+
+	// Get access token and refresh token from cookies or headers
+	// These methods already handle Bearer prefix removal and cookie prefixes
+	accessToken := oauth.OAuth.GetAccessToken(c)
+	refreshToken := oauth.OAuth.GetRefreshToken(c)
+
+	// Revoke access token if present
+	if accessToken != "" {
+		err := oauth.OAuth.Revoke(ctx, accessToken, "access_token")
+		if err != nil {
+			log.Warn("Failed to revoke access token during logout: %v", err)
+		}
+	}
+
+	// Revoke refresh token if present
+	if refreshToken != "" {
+		err := oauth.OAuth.Revoke(ctx, refreshToken, "refresh_token")
+		if err != nil {
+			log.Warn("Failed to revoke refresh token during logout: %v", err)
+		}
+	}
+
+	// Clear all authentication cookies
+	response.DeleteAllAuthCookies(c)
+
+	// Return success response
+	response.RespondWithSuccess(c, http.StatusOK, gin.H{
+		"message": "Logout successful",
+	})
+}
+
 // SendLoginCookies sends all necessary cookies for a successful login
 // This includes access token, refresh token, and optionally session ID cookies with appropriate security settings
 func SendLoginCookies(c *gin.Context, loginResponse *LoginResponse, sessionID string) {

openapi/user/user.go

@@ -36,7 +36,7 @@ func Attach(group *gin.RouterGroup, oauth types.OAuth) {
 	group.POST("/entry/register", oauth.Guard, GinEntryRegister) // Register a new user
 	group.POST("/entry/login", oauth.Guard, GinEntryLogin)       // Login a user
 	group.POST("/entry/otp", oauth.Guard, GinSendOTP)            // Send OTP
-	group.POST("/logout", oauth.Guard, placeholder)              // User logout
+	group.POST("/logout", oauth.Guard, GinLogout)                // User logout
 
 	// Logined User Settings
 	attachProfile(group, oauth)      // User profile management