pkg/validate/url.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package validate

import (
	"strings"
)

// IsRequestURI check if the string is an URL.
func IsRequestURI(uri string) bool {
	if uri == "" || len(uri) >= 2048 {
		return false
	}
	if strings.HasSuffix(uri, ";") ||
		strings.HasSuffix(uri, "&") ||
		strings.HasSuffix(uri, "?") ||
		strings.HasSuffix(uri, "+") ||
		strings.HasSuffix(uri, "@") ||
		//
		strings.HasPrefix(uri, ".") ||
		//
		strings.Contains(uri, "//") {
		return false
	}
	return true
}