forked from admpub/nging
-
Notifications
You must be signed in to change notification settings - Fork 0
/
define.go
99 lines (81 loc) · 2.85 KB
/
define.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
/*
Nging is a toolbox for webmasters
Copyright (C) 2018-present Wenhui Shen <swh@admpub.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package helper
import (
"regexp"
"strings"
"github.com/webx-top/client/upload"
"github.com/webx-top/com"
)
const (
DefaultUploadURLPath = `/public/upload/`
DefaultUploadDir = `./public/upload`
)
var (
// UploadURLPath 上传文件网址访问路径
UploadURLPath = DefaultUploadURLPath
// UploadDir 定义上传目录(首尾必须带“/”)
UploadDir = DefaultUploadDir
// AllowedUploadFileExtensions 被允许上传的文件的扩展名
AllowedUploadFileExtensions = []string{
`.jpeg`, `.jpg`, `.gif`, `.png`,
}
// FileTypeIcon 文件类型icon
FileTypeIcon = upload.FileTypeIcon
// DetectFileType 根据文件扩展名判断文件类型
DetectFileType = upload.DetectType
// TypeRegister 注册文件扩展名
TypeRegister = upload.TypeRegister
)
// URLToFile 文件网址转为存储路径
func URLToFile(fileURL string) string {
filePath := strings.TrimPrefix(fileURL, UploadURLPath)
filePath = strings.TrimSuffix(UploadDir, `/`) + `/` + strings.TrimPrefix(filePath, `/`)
return filePath
}
// FileTypeByName 根据文件名判断文件类型
func FileTypeByName(filename string) string {
p := strings.LastIndex(filename, `.`)
if p < 0 {
return ``
}
ext := filename[p:]
return DetectFileType(ext)
}
func ExtensionRegister(extensions ...string) {
AllowedUploadFileExtensions = append(AllowedUploadFileExtensions, extensions...)
}
func ExtensionUnregister(extensions ...string) {
com.SliceRemoveCallback(len(AllowedUploadFileExtensions), func(i int) func(bool) error {
if !com.InStringSlice(AllowedUploadFileExtensions[i], extensions) {
return nil
}
return func(inside bool) error {
if inside {
AllowedUploadFileExtensions = append(AllowedUploadFileExtensions[0:i], AllowedUploadFileExtensions[i+1:]...)
} else {
AllowedUploadFileExtensions = AllowedUploadFileExtensions[0:i]
}
return nil
}
})
}
func ExtensionRegexpEnd() string {
extensions := make([]string, len(AllowedUploadFileExtensions))
for index, extension := range AllowedUploadFileExtensions {
extensions[index] = regexp.QuoteMeta(extension)
}
return `(` + strings.Join(extensions, `|`) + `)`
}