1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
// Package urlutil provides helper function to check urls kind.
// It supports http urls, git urls and transport url (tcp://, …)
package urlutil // import "github.com/docker/docker/pkg/urlutil"
import (
"regexp"
"strings"
)
var (
validPrefixes = map[string][]string{
"url": {"http://", "https://"},
// The github.com/ prefix is a special case used to treat context-paths
// starting with `github.com` as a git URL if the given path does not
// exist locally. The "github.com/" prefix is kept for backward compatibility,
// and is a legacy feature.
//
// Going forward, no additional prefixes should be added, and users should
// be encouraged to use explicit URLs (https://github.com/user/repo.git) instead.
"git": {"git://", "github.com/", "git@"},
"transport": {"tcp://", "tcp+tls://", "udp://", "unix://", "unixgram://"},
}
urlPathWithFragmentSuffix = regexp.MustCompile(".git(?:#.+)?$")
)
// IsURL returns true if the provided str is an HTTP(S) URL.
func IsURL(str string) bool {
return checkURL(str, "url")
}
// IsGitURL returns true if the provided str is a git repository URL.
func IsGitURL(str string) bool {
if IsURL(str) && urlPathWithFragmentSuffix.MatchString(str) {
return true
}
return checkURL(str, "git")
}
// IsTransportURL returns true if the provided str is a transport (tcp, tcp+tls, udp, unix) URL.
func IsTransportURL(str string) bool {
return checkURL(str, "transport")
}
func checkURL(str, kind string) bool {
for _, prefix := range validPrefixes[kind] {
if strings.HasPrefix(str, prefix) {
return true
}
}
return false
}
|
