summaryrefslogtreecommitdiff
path: root/vendor/ezyang/htmlpurifier/extras/FSTools.php
blob: ce00763166b4003ad5726d05079b7f1c7bdb8f40 (plain)
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
<?php

/**
 * Filesystem tools not provided by default; can recursively create, copy
 * and delete folders. Some template methods are provided for extensibility.
 *
 * @note This class must be instantiated to be used, although it does
 *       not maintain state.
 */
class FSTools
{

    private static $singleton;

    /**
     * Returns a global instance of FSTools
     */
    public static function singleton()
    {
        if (empty(FSTools::$singleton)) FSTools::$singleton = new FSTools();
        return FSTools::$singleton;
    }

    /**
     * Sets our global singleton to something else; useful for overloading
     * functions.
     */
    public static function setSingleton($singleton)
    {
        FSTools::$singleton = $singleton;
    }

    /**
     * Recursively creates a directory
     * @param string $folder Name of folder to create
     * @note Adapted from the PHP manual comment 76612
     */
    public function mkdirr($folder)
    {
        $folders = preg_split("#[\\\\/]#", $folder);
        $base = '';
        for($i = 0, $c = count($folders); $i < $c; $i++) {
            if(empty($folders[$i])) {
                if (!$i) {
                    // special case for root level
                    $base .= DIRECTORY_SEPARATOR;
                }
                continue;
            }
            $base .= $folders[$i];
            if(!is_dir($base)){
                $this->mkdir($base);
            }
            $base .= DIRECTORY_SEPARATOR;
        }
    }

    /**
     * Copy a file, or recursively copy a folder and its contents; modified
     * so that copied files, if PHP, have includes removed
     * @note Adapted from http://aidanlister.com/repos/v/function.copyr.php
     */
    public function copyr($source, $dest)
    {
        // Simple copy for a file
        if (is_file($source)) {
            return $this->copy($source, $dest);
        }
        // Make destination directory
        if (!is_dir($dest)) {
            $this->mkdir($dest);
        }
        // Loop through the folder
        $dir = $this->dir($source);
        while ( false !== ($entry = $dir->read()) ) {
            // Skip pointers
            if ($entry == '.' || $entry == '..') {
                continue;
            }
            if (!$this->copyable($entry)) {
                continue;
            }
            // Deep copy directories
            if ($dest !== "$source/$entry") {
                $this->copyr("$source/$entry", "$dest/$entry");
            }
        }
        // Clean up
        $dir->close();
        return true;
    }

    /**
     * Overloadable function that tests a filename for copyability. By
     * default, everything should be copied; you can restrict things to
     * ignore hidden files, unreadable files, etc. This function
     * applies to copyr().
     */
    public function copyable($file)
    {
        return true;
    }

    /**
     * Delete a file, or a folder and its contents
     * @note Adapted from http://aidanlister.com/repos/v/function.rmdirr.php
     */
    public function rmdirr($dirname)
    {
        // Sanity check
        if (!$this->file_exists($dirname)) {
            return false;
        }

        // Simple delete for a file
        if ($this->is_file($dirname) || $this->is_link($dirname)) {
            return $this->unlink($dirname);
        }

        // Loop through the folder
        $dir = $this->dir($dirname);
        while (false !== $entry = $dir->read()) {
            // Skip pointers
            if ($entry == '.' || $entry == '..') {
                continue;
            }
            // Recurse
            $this->rmdirr($dirname . DIRECTORY_SEPARATOR . $entry);
        }

        // Clean up
        $dir->close();
        return $this->rmdir($dirname);
    }

    /**
     * Recursively globs a directory.
     */
    public function globr($dir, $pattern, $flags = NULL)
    {
        $files = $this->glob("$dir/$pattern", $flags);
        if ($files === false) $files = array();
        $sub_dirs = $this->glob("$dir/*", GLOB_ONLYDIR);
        if ($sub_dirs === false) $sub_dirs = array();
        foreach ($sub_dirs as $sub_dir) {
            $sub_files = $this->globr($sub_dir, $pattern, $flags);
            $files = array_merge($files, $sub_files);
        }
        return $files;
    }

    /**
     * Allows for PHP functions to be called and be stubbed.
     * @warning This function will not work for functions that need
     *      to pass references; manually define a stub function for those.
     */
    public function __call($name, $args)
    {
        return call_user_func_array($name, $args);
    }

}

// vim: et sw=4 sts=4