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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
// Copyright 2021 The Hugo Authors. All rights reserved.
//
// Licensed 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 paths
import (
"fmt"
"net/url"
"path"
"path/filepath"
"strings"
)
type pathBridge struct{}
func (pathBridge) Base(in string) string {
return path.Base(in)
}
func (pathBridge) Clean(in string) string {
return path.Clean(in)
}
func (pathBridge) Dir(in string) string {
return path.Dir(in)
}
func (pathBridge) Ext(in string) string {
return path.Ext(in)
}
func (pathBridge) Join(elem ...string) string {
return path.Join(elem...)
}
func (pathBridge) Separator() string {
return "/"
}
var pb pathBridge
// MakePermalink combines base URL with content path to create full URL paths.
// Example
//
// base: http://spf13.com/
// path: post/how-i-blog
// result: http://spf13.com/post/how-i-blog
func MakePermalink(host, plink string) *url.URL {
base, err := url.Parse(host)
if err != nil {
panic(err)
}
p, err := url.Parse(plink)
if err != nil {
panic(err)
}
if p.Host != "" {
panic(fmt.Errorf("can't make permalink from absolute link %q", plink))
}
base.Path = path.Join(base.Path, p.Path)
base.Fragment = p.Fragment
base.RawQuery = p.RawQuery
// path.Join will strip off the last /, so put it back if it was there.
hadTrailingSlash := (plink == "" && strings.HasSuffix(host, "/")) || strings.HasSuffix(p.Path, "/")
if hadTrailingSlash && !strings.HasSuffix(base.Path, "/") {
base.Path = base.Path + "/"
}
return base
}
// AddContextRoot adds the context root to an URL if it's not already set.
// For relative URL entries on sites with a base url with a context root set (i.e. http://example.com/mysite),
// relative URLs must not include the context root if canonifyURLs is enabled. But if it's disabled, it must be set.
func AddContextRoot(baseURL, relativePath string) string {
url, err := url.Parse(baseURL)
if err != nil {
panic(err)
}
newPath := path.Join(url.Path, relativePath)
// path strips trailing slash, ignore root path.
if newPath != "/" && strings.HasSuffix(relativePath, "/") {
newPath += "/"
}
return newPath
}
// URLizeAn
// PrettifyURL takes a URL string and returns a semantic, clean URL.
func PrettifyURL(in string) string {
x := PrettifyURLPath(in)
if path.Base(x) == "index.html" {
return path.Dir(x)
}
if in == "" {
return "/"
}
return x
}
// PrettifyURLPath takes a URL path to a content and converts it
// to enable pretty URLs.
//
// /section/name.html becomes /section/name/index.html
// /section/name/ becomes /section/name/index.html
// /section/name/index.html becomes /section/name/index.html
func PrettifyURLPath(in string) string {
return prettifyPath(in, pb)
}
// Uglify does the opposite of PrettifyURLPath().
//
// /section/name/index.html becomes /section/name.html
// /section/name/ becomes /section/name.html
// /section/name.html becomes /section/name.html
func Uglify(in string) string {
if path.Ext(in) == "" {
if len(in) < 2 {
return "/"
}
// /section/name/ -> /section/name.html
return path.Clean(in) + ".html"
}
name, ext := fileAndExt(in, pb)
if name == "index" {
// /section/name/index.html -> /section/name.html
d := path.Dir(in)
if len(d) > 1 {
return d + ext
}
return in
}
// /.xml -> /index.xml
if name == "" {
return path.Dir(in) + "index" + ext
}
// /section/name.html -> /section/name.html
return path.Clean(in)
}
// UrlToFilename converts the URL s to a filename.
// If ParseRequestURI fails, the input is just converted to OS specific slashes and returned.
func UrlToFilename(s string) (string, bool) {
u, err := url.ParseRequestURI(s)
if err != nil {
return filepath.FromSlash(s), false
}
p := u.Path
if p == "" {
p, _ = url.QueryUnescape(u.Opaque)
return filepath.FromSlash(p), true
}
p = filepath.FromSlash(p)
if u.Host != "" {
// C:\data\file.txt
p = strings.ToUpper(u.Host) + ":" + p
}
return p, true
}
// URLEscape escapes unicode letters.
func URLEscape(uri string) string {
// escape unicode letters
u, err := url.Parse(uri)
if err != nil {
panic(err)
}
return u.String()
}
|
