This file is indexed.

/usr/share/php/getid3/write.metaflac.php is in php-getid3 1.9.7-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
<?php
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org>               //
//  available at http://getid3.sourceforge.net                 //
//            or http://www.getid3.org                         //
/////////////////////////////////////////////////////////////////
// See readme.txt for more details                             //
/////////////////////////////////////////////////////////////////
//                                                             //
// write.metaflac.php                                          //
// module for writing metaflac tags                            //
// dependencies: /helperapps/metaflac.exe                      //
//                                                            ///
/////////////////////////////////////////////////////////////////


class getid3_write_metaflac
{

	public $filename;
	public $tag_data;
	public $warnings = array(); // any non-critical errors will be stored here
	public $errors   = array(); // any critical errors will be stored here

	public function getid3_write_metaflac() {
		return true;
	}

	public function WriteMetaFLAC() {

		if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) {
			$this->errors[] = 'PHP running in Safe Mode (backtick operator not available) - cannot call metaflac, tags not written';
			return false;
		}

		// Create file with new comments
		$tempcommentsfilename = tempnam(GETID3_TEMP_DIR, 'getID3');
		if (is_writable($tempcommentsfilename) && is_file($tempcommentsfilename) && ($fpcomments = fopen($tempcommentsfilename, 'wb'))) {
			foreach ($this->tag_data as $key => $value) {
				foreach ($value as $commentdata) {
					fwrite($fpcomments, $this->CleanmetaflacName($key).'='.$commentdata."\n");
				}
			}
			fclose($fpcomments);

		} else {
			$this->errors[] = 'failed to open temporary tags file, tags not written - fopen("'.$tempcommentsfilename.'", "wb")';
			return false;
		}

		$oldignoreuserabort = ignore_user_abort(true);
		if (GETID3_OS_ISWINDOWS) {

			if (file_exists(GETID3_HELPERAPPSDIR.'metaflac.exe')) {
				//$commandline = '"'.GETID3_HELPERAPPSDIR.'metaflac.exe" --no-utf8-convert --remove-all-tags --import-tags-from="'.$tempcommentsfilename.'" "'.str_replace('/', '\\', $this->filename).'"';
				//  metaflac works fine if you copy-paste the above commandline into a command prompt,
				//  but refuses to work with `backtick` if there are "doublequotes" present around BOTH
				//  the metaflac pathname and the target filename. For whatever reason...??
				//  The solution is simply ensure that the metaflac pathname has no spaces,
				//  and therefore does not need to be quoted

				// On top of that, if error messages are not always captured properly under Windows
				// To at least see if there was a problem, compare file modification timestamps before and after writing
				clearstatcache();
				$timestampbeforewriting = filemtime($this->filename);

				$commandline = GETID3_HELPERAPPSDIR.'metaflac.exe --no-utf8-convert --remove-all-tags --import-tags-from='.escapeshellarg($tempcommentsfilename).' '.escapeshellarg($this->filename).' 2>&1';
				$metaflacError = `$commandline`;

				if (empty($metaflacError)) {
					clearstatcache();
					if ($timestampbeforewriting == filemtime($this->filename)) {
						$metaflacError = 'File modification timestamp has not changed - it looks like the tags were not written';
					}
				}
			} else {
				$metaflacError = 'metaflac.exe not found in '.GETID3_HELPERAPPSDIR;
			}

		} else {

			// It's simpler on *nix
			$commandline = 'metaflac --no-utf8-convert --remove-all-tags --import-tags-from='.escapeshellarg($tempcommentsfilename).' '.escapeshellarg($this->filename).' 2>&1';
			$metaflacError = `$commandline`;

		}

		// Remove temporary comments file
		unlink($tempcommentsfilename);
		ignore_user_abort($oldignoreuserabort);

		if (!empty($metaflacError)) {

			$this->errors[] = 'System call to metaflac failed with this message returned: '."\n\n".$metaflacError;
			return false;

		}

		return true;
	}


	public function DeleteMetaFLAC() {

		if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) {
			$this->errors[] = 'PHP running in Safe Mode (backtick operator not available) - cannot call metaflac, tags not deleted';
			return false;
		}

		$oldignoreuserabort = ignore_user_abort(true);
		if (GETID3_OS_ISWINDOWS) {

			if (file_exists(GETID3_HELPERAPPSDIR.'metaflac.exe')) {
				// To at least see if there was a problem, compare file modification timestamps before and after writing
				clearstatcache();
				$timestampbeforewriting = filemtime($this->filename);

				$commandline = GETID3_HELPERAPPSDIR.'metaflac.exe --remove-all-tags "'.$this->filename.'" 2>&1';
				$metaflacError = `$commandline`;

				if (empty($metaflacError)) {
					clearstatcache();
					if ($timestampbeforewriting == filemtime($this->filename)) {
						$metaflacError = 'File modification timestamp has not changed - it looks like the tags were not deleted';
					}
				}
			} else {
				$metaflacError = 'metaflac.exe not found in '.GETID3_HELPERAPPSDIR;
			}

		} else {

			// It's simpler on *nix
			$commandline = 'metaflac --remove-all-tags "'.$this->filename.'" 2>&1';
			$metaflacError = `$commandline`;

		}

		ignore_user_abort($oldignoreuserabort);

		if (!empty($metaflacError)) {
			$this->errors[] = 'System call to metaflac failed with this message returned: '."\n\n".$metaflacError;
			return false;
		}
		return true;
	}


	public function CleanmetaflacName($originalcommentname) {
		// A case-insensitive field name that may consist of ASCII 0x20 through 0x7D, 0x3D ('=') excluded.
		// ASCII 0x41 through 0x5A inclusive (A-Z) is to be considered equivalent to ASCII 0x61 through
		// 0x7A inclusive (a-z).

		// replace invalid chars with a space, return uppercase text
		// Thanks Chris Bolt <chris-getid3Øbolt*cx> for improving this function
		// note: *reg_replace() replaces nulls with empty string (not space)
		return strtoupper(preg_replace('#[^ -<>-}]#', ' ', str_replace("\x00", ' ', $originalcommentname)));

	}

}