-
-
Notifications
You must be signed in to change notification settings - Fork 1k
/
url.go
106 lines (88 loc) · 2.74 KB
/
url.go
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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
package utils
import (
"net/url"
"path"
"strings"
)
// URLPathFullClean returns a URL path with the query parameters appended (full path) with the path portion parsed
// through path.Clean given a *url.URL.
func URLPathFullClean(u *url.URL) (output string) {
lengthPath := len(u.Path)
lengthQuery := len(u.RawQuery)
appendForwardSlash := lengthPath > 1 && u.Path[lengthPath-1] == '/'
switch {
case lengthPath == 1 && lengthQuery == 0:
return u.Path
case lengthPath == 1:
return path.Clean(u.Path) + "?" + u.RawQuery
case lengthQuery != 0 && appendForwardSlash:
return path.Clean(u.Path) + "/?" + u.RawQuery
case lengthQuery != 0:
return path.Clean(u.Path) + "?" + u.RawQuery
case appendForwardSlash:
return path.Clean(u.Path) + "/"
default:
return path.Clean(u.Path)
}
}
// IsURISafeRedirection returns true if the URI passes the IsURISecure and HasURIDomainSuffix, i.e. if the scheme is
// secure and the given URI has a hostname that is either exactly equal to the given domain or if it has a suffix of the
// domain prefixed with a period.
func IsURISafeRedirection(uri *url.URL, domain string) bool {
return IsURISecure(uri) && HasURIDomainSuffix(uri, domain)
}
// IsURISecure returns true if the URI has a secure schemes (https or wss).
func IsURISecure(uri *url.URL) bool {
switch uri.Scheme {
case https, wss:
return true
default:
return false
}
}
// HasURIDomainSuffix returns true if the URI hostname is equal to the domain suffix or if it has a suffix of the domain
// suffix prefixed with a period.
func HasURIDomainSuffix(uri *url.URL, domainSuffix string) bool {
return HasDomainSuffix(uri.Hostname(), domainSuffix)
}
// HasDomainSuffix returns true if the URI hostname is equal to the domain or if it has a suffix of the domain
// prefixed with a period.
func HasDomainSuffix(domain, domainSuffix string) bool {
if domainSuffix == "" {
return false
}
if domain == domainSuffix {
return true
}
if (strings.HasPrefix(domainSuffix, period) && strings.HasSuffix(domain, domainSuffix)) || strings.HasSuffix(domain, period+domainSuffix) {
return true
}
return false
}
// EqualURLs returns true if the two *url.URL values are effectively equal taking into consideration web normalization.
func EqualURLs(first, second *url.URL) bool {
if first == nil && second == nil {
return true
} else if first == nil || second == nil {
return false
}
if !strings.EqualFold(first.Scheme, second.Scheme) {
return false
}
if !strings.EqualFold(first.Host, second.Host) {
return false
}
if first.Path != second.Path {
return false
}
if first.RawQuery != second.RawQuery {
return false
}
if first.Fragment != second.Fragment {
return false
}
if first.RawFragment != second.RawFragment {
return false
}
return true
}