istio.io/istio@v0.0.0-20240520182934-d79c90f27776/operator/pkg/util/common.go (about)

     1  // Copyright Istio Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package util
    16  
    17  import (
    18  	"fmt"
    19  	"net/url"
    20  	"strings"
    21  
    22  	"istio.io/istio/pkg/log"
    23  )
    24  
    25  var scope = log.RegisterScope("util", "util")
    26  
    27  // IsFilePath reports whether the given URL is a local file path.
    28  func IsFilePath(path string) bool {
    29  	return strings.Contains(path, "/") || strings.Contains(path, ".")
    30  }
    31  
    32  // IsHTTPURL checks whether the given URL is a HTTP URL.
    33  func IsHTTPURL(path string) (bool, error) {
    34  	u, err := url.Parse(path)
    35  	valid := err == nil && u.Host != "" && (u.Scheme == "http" || u.Scheme == "https")
    36  	if strings.HasPrefix(path, "http") && !valid {
    37  		return false, fmt.Errorf("%s starts with http but is not a valid URL: %s", path, err)
    38  	}
    39  	return valid, nil
    40  }