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
|
<?php
/**
* elFinder Plugin Sanitizer
*
* Sanitizer of file-name and file-path etc.
*
* ex. binding, configure on connector options
* $opts = array(
* 'bind' => array(
* 'upload.pre mkdir.pre mkfile.pre rename.pre archive.pre ls.pre' => array(
* 'Plugin.Sanitizer.cmdPreprocess'
* ),
* 'ls' => array(
* 'Plugin.Sanitizer.cmdPostprocess'
* ),
* 'upload.presave' => array(
* 'Plugin.Sanitizer.onUpLoadPreSave'
* )
* ),
* // global configure (optional)
* 'plugin' => array(
* 'Sanitizer' => array(
* 'enable' => true,
* 'targets' => array('\\','/',':','*','?','"','<','>','|'), // target chars
* 'replace' => '_' // replace to this
* )
* ),
* // each volume configure (optional)
* 'roots' => array(
* array(
* 'driver' => 'LocalFileSystem',
* 'path' => '/path/to/files/',
* 'URL' => 'http://localhost/to/files/'
* 'plugin' => array(
* 'Sanitizer' => array(
* 'enable' => true,
* 'targets' => array('\\','/',':','*','?','"','<','>','|'), // target chars
* 'replace' => '_' // replace to this
* )
* )
* )
* )
* );
*
* @package elfinder
* @author Naoki Sawada
* @license New BSD
*/
class elFinderPluginSanitizer extends elFinderPlugin
{
private $replaced = array();
private $keyMap = array(
'ls' => 'intersect',
'upload' => 'renames'
);
public function __construct($opts) {
$defaults = array(
'enable' => true, // For control by volume driver
'targets' => array('\\','/',':','*','?','"','<','>','|'), // target chars
'replace' => '_', // replace to this
'pathAllows' => array('/') // Characters allowed in path name of characters in `targets` array
);
$this->opts = array_merge($defaults, $opts);
}
public function cmdPreprocess($cmd, &$args, $elfinder, $volume) {
$opts = $this->getCurrentOpts($volume);
if (! $opts['enable']) {
return false;
}
$this->replaced[$cmd] = array();
$key = (isset($this->keyMap[$cmd]))? $this->keyMap[$cmd] : 'name';
if (isset($args[$key])) {
if (is_array($args[$key])) {
foreach($args[$key] as $i => $name) {
$this->replaced[$cmd][$name] = $args[$key][$i] = $this->sanitizeFileName($name, $opts);
}
} else {
$name = $args[$key];
$this->replaced[$cmd][$name] = $args[$key] = $this->sanitizeFileName($name, $opts);
}
}
return true;
}
public function cmdPostprocess($cmd, &$result, $args, $elfinder) {
if ($cmd === 'ls') {
if (! empty($result['list']) && ! empty($this->replaced['ls'])) {
foreach($result['list'] as $hash => $name) {
if ($keys = array_keys($this->replaced['ls'], $name)) {
if (count($keys) === 1) {
$result['list'][$hash] = $keys[0];
} else {
$result['list'][$hash] = $keys;
}
}
}
}
}
}
// NOTE: $thash is directory hash so it unneed to process at here
public function onUpLoadPreSave(&$thash, &$name, $src, $elfinder, $volume) {
$opts = $this->getCurrentOpts($volume);
if (! $opts['enable']) {
return false;
}
$name = $this->sanitizeFileName($name, $opts);
return true;
}
protected function sanitizeFileName($filename, $opts, $allows = array()) {
$targets = $allows? array_diff($opts['targets'], $allows) : $opts['targets'];
return str_replace($targets, $opts['replace'], $filename);
}
}
|