Refactor login response structure to enhance clarity and security

- Removed the refreshCaptcha function from the login.go file to streamline the codebase.
- Updated the authback function in oauth.go to return a structured LoginSuccessResponse, including session ID, access token, refresh token, and their expiration times for improved response clarity.
- Introduced a new LoginSuccessResponse type in types.go to standardize the login success response format.

openapi/user/login.go

@@ -78,31 +78,6 @@ func getCaptcha(c *gin.Context) {
 	})
 }
 
-// refreshCaptcha is the handler for refresh captcha image
-func refreshCaptcha(c *gin.Context) {
-	var option helper.CaptchaOption = helper.NewCaptchaOption()
-
-	err := c.ShouldBindQuery(&option)
-	if err != nil {
-		response.RespondWithError(c, http.StatusBadRequest, &response.ErrorResponse{
-			Code:             response.ErrInvalidRequest.Code,
-			ErrorDescription: err.Error(),
-		})
-		return
-	}
-
-	// Set the type to image
-	option.Type = "image"
-	id, content := helper.CaptchaMake(option)
-
-	// Return in the format expected by the frontend
-	response.RespondWithSuccess(c, http.StatusOK, gin.H{
-		"captcha_id":    id,
-		"captcha_image": content,
-		"expires_in":    300, // 5 minutes
-	})
-}
-
 // LoginThirdParty is the handler for third party login
 func LoginThirdParty(providerID string, userinfo *oauthtypes.OIDCUserInfo, ip string) (*LoginResponse, error) {
 

openapi/user/oauth.go

@@ -188,7 +188,14 @@ func authback(c *gin.Context) {
 	SendLoginCookies(c, loginResponse, sid)
 
 	// Send IDToken to the client
-	response.RespondWithSuccess(c, response.StatusOK, map[string]interface{}{"id_token": loginResponse.IDToken})
+	response.RespondWithSuccess(c, response.StatusOK, LoginSuccessResponse{
+		SessionID:             sid,
+		IDToken:               loginResponse.IDToken,
+		AccessToken:           loginResponse.AccessToken,
+		RefreshToken:          loginResponse.RefreshToken,
+		ExpiresIn:             loginResponse.ExpiresIn,
+		RefreshTokenExpiresIn: loginResponse.RefreshTokenExpiresIn,
+	})
 }
 
 // getOAuthAuthorizationURL generates OAuth authorization URL for a provider

openapi/user/types.go

@@ -172,6 +172,16 @@ type LoginResponse struct {
 	Scope                 string `json:"scope,omitempty"`
 }
 
+// LoginSuccessResponse represents the response for login success
+type LoginSuccessResponse struct {
+	IDToken               string `json:"id_token,omitempty"`
+	AccessToken           string `json:"access_token,omitempty"`
+	SessionID             string `json:"session_id,omitempty"`
+	RefreshToken          string `json:"refresh_token,omitempty"`
+	ExpiresIn             int    `json:"expires_in,omitempty"`
+	RefreshTokenExpiresIn int    `json:"refresh_token_expires_in,omitempty"`
+}
+
 // Built-in preset mapping types
 const (
 	MappingGoogle    = "google"