Update module labstack/echo/v4 to v4.1.16 (#241)

Update module labstack/echo/v4 to v4.1.16

Reviewed-on: https://kolaente.dev/vikunja/api/pulls/241

vendor/github.com/labstack/echo/v4/middleware/jwt.go

@@ -25,7 +25,7 @@ type (
 		// ErrorHandler defines a function which is executed for an invalid token.
 		// It may be used to define a custom JWT error.
 		ErrorHandler JWTErrorHandler
-		
+
 		// ErrorHandlerWithContext is almost identical to ErrorHandler, but it's passed the current context.
 		ErrorHandlerWithContext JWTErrorHandlerWithContext
 
@@ -74,7 +74,7 @@ type (
 
 	// JWTErrorHandlerWithContext is almost identical to JWTErrorHandler, but it's passed the current context.
 	JWTErrorHandlerWithContext func(error, echo.Context) error
-	
+
 	jwtExtractor func(echo.Context) (string, error)
 )
 
@@ -183,7 +183,7 @@ func JWTWithConfig(config JWTConfig) echo.MiddlewareFunc {
 				if config.ErrorHandler != nil {
 					return config.ErrorHandler(err)
 				}
-				
+
 				if config.ErrorHandlerWithContext != nil {
 					return config.ErrorHandlerWithContext(err, c)
 				}
@@ -210,7 +210,7 @@ func JWTWithConfig(config JWTConfig) echo.MiddlewareFunc {
 				return config.ErrorHandler(err)
 			}
 			if config.ErrorHandlerWithContext != nil {
-					return config.ErrorHandlerWithContext(err, c)
+				return config.ErrorHandlerWithContext(err, c)
 			}
 			return &echo.HTTPError{
 				Code:     http.StatusUnauthorized,

vendor/github.com/labstack/echo/v4/middleware/proxy.go

@@ -231,7 +231,9 @@ func ProxyWithConfig(config ProxyConfig) echo.MiddlewareFunc {
 			}
 
 			// Fix header
-			if req.Header.Get(echo.HeaderXRealIP) == "" {
+			// Basically it's not good practice to unconditionally pass incoming x-real-ip header to upstream.
+			// However, for backward compatibility, legacy behavior is preserved unless you configure Echo#IPExtractor.
+			if req.Header.Get(echo.HeaderXRealIP) == "" || c.Echo().IPExtractor != nil {
 				req.Header.Set(echo.HeaderXRealIP, c.RealIP())
 			}
 			if req.Header.Get(echo.HeaderXForwardedProto) == "" {

vendor/github.com/labstack/echo/v4/middleware/rewrite.go

@@ -57,7 +57,8 @@ func RewriteWithConfig(config RewriteConfig) echo.MiddlewareFunc {
 
 	// Initialize
 	for k, v := range config.Rules {
-		k = strings.Replace(k, "*", "(.*)", -1)
+		k = regexp.QuoteMeta(k)
+		k = strings.Replace(k, `\*`, "(.*)", -1)
 		k = k + "$"
 		config.rulesRegex[regexp.MustCompile(k)] = v
 	}