support Nextcloud OAuth 2.0 authentication

pkg/core/handler.go

@@ -12,6 +12,9 @@ type CliHandlerFunc func(*CliContext) error
 // MiddlewareHandlerFunc represents the middleware handler function
 type MiddlewareHandlerFunc func(*WebContext)
 
+// RedirectHandlerFunc represents the redirect handler function
+type RedirectHandlerFunc func(*WebContext) (string, *errs.Error)
+
 // ApiHandlerFunc represents the api handler function
 type ApiHandlerFunc func(*WebContext) (any, *errs.Error)
 

pkg/core/token_claims.go

@@ -11,11 +11,13 @@ type TokenType byte
 
 // Token types
 const (
-	USER_TOKEN_TYPE_NORMAL         TokenType = 1
-	USER_TOKEN_TYPE_REQUIRE_2FA    TokenType = 2
-	USER_TOKEN_TYPE_EMAIL_VERIFY   TokenType = 3
-	USER_TOKEN_TYPE_PASSWORD_RESET TokenType = 4
-	USER_TOKEN_TYPE_MCP            TokenType = 5
+	USER_TOKEN_TYPE_NORMAL                         TokenType = 1
+	USER_TOKEN_TYPE_REQUIRE_2FA                    TokenType = 2
+	USER_TOKEN_TYPE_EMAIL_VERIFY                   TokenType = 3
+	USER_TOKEN_TYPE_PASSWORD_RESET                 TokenType = 4
+	USER_TOKEN_TYPE_MCP                            TokenType = 5
+	USER_TOKEN_TYPE_OAUTH2_CALLBACK_REQUIRE_VERIFY TokenType = 6
+	USER_TOKEN_TYPE_OAUTH2_CALLBACK                TokenType = 7
 )
 
 // UserTokenClaims represents user token

pkg/core/user_external_auth_type.go

@@ -0,0 +1,18 @@
+package core
+
+// UserExternalAuthType represents the type of user external authentication
+type UserExternalAuthType string
+
+// User External Auth Type
+const (
+	USER_EXTERNAL_AUTH_TYPE_OAUTH2_NEXTCLOUD UserExternalAuthType = "nextcloud"
+)
+
+// IsValid checks if the UserExternalAuthType is valid
+func (t UserExternalAuthType) IsValid() bool {
+	switch t {
+	case USER_EXTERNAL_AUTH_TYPE_OAUTH2_NEXTCLOUD:
+		return true
+	}
+	return false
+}