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
|
<?php
namespace PhpOffice\PhpSpreadsheet\Shared;
use InvalidArgumentException;
use ZipArchive;
class File
{
/**
* Use Temp or File Upload Temp for temporary files.
*
* @var bool
*/
protected static $useUploadTempDirectory = false;
/**
* Set the flag indicating whether the File Upload Temp directory should be used for temporary files.
*
* @param bool $useUploadTempDir Use File Upload Temporary directory (true or false)
*/
public static function setUseUploadTempDirectory($useUploadTempDir): void
{
self::$useUploadTempDirectory = (bool) $useUploadTempDir;
}
/**
* Get the flag indicating whether the File Upload Temp directory should be used for temporary files.
*
* @return bool Use File Upload Temporary directory (true or false)
*/
public static function getUseUploadTempDirectory()
{
return self::$useUploadTempDirectory;
}
/**
* Verify if a file exists.
*
* @param string $pFilename Filename
*
* @return bool
*/
public static function fileExists($pFilename)
{
// Sick construction, but it seems that
// file_exists returns strange values when
// doing the original file_exists on ZIP archives...
if (strtolower(substr($pFilename, 0, 3)) == 'zip') {
// Open ZIP file and verify if the file exists
$zipFile = substr($pFilename, 6, strpos($pFilename, '#') - 6);
$archiveFile = substr($pFilename, strpos($pFilename, '#') + 1);
$zip = new ZipArchive();
if ($zip->open($zipFile) === true) {
$returnValue = ($zip->getFromName($archiveFile) !== false);
$zip->close();
return $returnValue;
}
return false;
}
return file_exists($pFilename);
}
/**
* Returns canonicalized absolute pathname, also for ZIP archives.
*
* @param string $pFilename
*
* @return string
*/
public static function realpath($pFilename)
{
// Returnvalue
$returnValue = '';
// Try using realpath()
if (file_exists($pFilename)) {
$returnValue = realpath($pFilename);
}
// Found something?
if ($returnValue == '' || ($returnValue === null)) {
$pathArray = explode('/', $pFilename);
while (in_array('..', $pathArray) && $pathArray[0] != '..') {
$iMax = count($pathArray);
for ($i = 0; $i < $iMax; ++$i) {
if ($pathArray[$i] == '..' && $i > 0) {
unset($pathArray[$i], $pathArray[$i - 1]);
break;
}
}
}
$returnValue = implode('/', $pathArray);
}
// Return
return $returnValue;
}
/**
* Get the systems temporary directory.
*
* @return string
*/
public static function sysGetTempDir()
{
if (self::$useUploadTempDirectory) {
// use upload-directory when defined to allow running on environments having very restricted
// open_basedir configs
if (ini_get('upload_tmp_dir') !== false) {
if ($temp = ini_get('upload_tmp_dir')) {
if (file_exists($temp)) {
return realpath($temp);
}
}
}
}
return realpath(sys_get_temp_dir());
}
/**
* Assert that given path is an existing file and is readable, otherwise throw exception.
*
* @param string $filename
*/
public static function assertFile($filename): void
{
if (!is_file($filename)) {
throw new InvalidArgumentException('File "' . $filename . '" does not exist.');
}
if (!is_readable($filename)) {
throw new InvalidArgumentException('Could not open "' . $filename . '" for reading.');
}
}
}
|
