71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
// Copyright 2017 Frédéric Guillot. All rights reserved.
|
|
// Use of this source code is governed by the Apache 2.0
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package url // import "miniflux.app/url"
|
|
|
|
import "net/url"
|
|
import "fmt"
|
|
import "strings"
|
|
|
|
// AbsoluteURL converts the input URL as absolute URL if necessary.
|
|
func AbsoluteURL(baseURL, input string) (string, error) {
|
|
if strings.HasPrefix(input, "//") {
|
|
input = "https://" + input[2:]
|
|
}
|
|
|
|
u, err := url.Parse(input)
|
|
if err != nil {
|
|
return "", fmt.Errorf("unable to parse input URL: %v", err)
|
|
}
|
|
|
|
if u.IsAbs() {
|
|
return u.String(), nil
|
|
}
|
|
|
|
base, err := url.Parse(baseURL)
|
|
if err != nil {
|
|
return "", fmt.Errorf("unable to parse base URL: %v", err)
|
|
}
|
|
|
|
return base.ResolveReference(u).String(), nil
|
|
}
|
|
|
|
// RootURL returns absolute URL without the path.
|
|
func RootURL(websiteURL string) string {
|
|
if strings.HasPrefix(websiteURL, "//") {
|
|
websiteURL = "https://" + websiteURL[2:]
|
|
}
|
|
|
|
absoluteURL, err := AbsoluteURL(websiteURL, "")
|
|
if err != nil {
|
|
return websiteURL
|
|
}
|
|
|
|
u, err := url.Parse(absoluteURL)
|
|
if err != nil {
|
|
return absoluteURL
|
|
}
|
|
|
|
return u.Scheme + "://" + u.Host + "/"
|
|
}
|
|
|
|
// IsHTTPS returns true if the URL is using HTTPS.
|
|
func IsHTTPS(websiteURL string) bool {
|
|
parsedURL, err := url.Parse(websiteURL)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
|
|
return strings.ToLower(parsedURL.Scheme) == "https"
|
|
}
|
|
|
|
// Domain returns only the domain part of the given URL.
|
|
func Domain(websiteURL string) string {
|
|
parsedURL, err := url.Parse(websiteURL)
|
|
if err != nil {
|
|
return websiteURL
|
|
}
|
|
|
|
return parsedURL.Host
|
|
}
|