[3318] | 1 | <?php |
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| 2 | // +----------------------------------------------------------------------+ |
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| 3 | // | PHP version 5 | |
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| 4 | // +----------------------------------------------------------------------+ |
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| 5 | // | Copyright (c) 2002-2006 James Heinrich, Allan Hansen | |
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| 6 | // +----------------------------------------------------------------------+ |
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| 7 | // | This source file is subject to version 2 of the GPL license, | |
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| 8 | // | that is bundled with this package in the file license.txt and is | |
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| 9 | // | available through the world-wide-web at the following url: | |
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| 10 | // | http://www.gnu.org/copyleft/gpl.html | |
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| 11 | // +----------------------------------------------------------------------+ |
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| 12 | // | getID3() - http://getid3.sourceforge.net or http://www.getid3.org | |
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| 13 | // +----------------------------------------------------------------------+ |
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| 14 | // | Authors: James Heinrich <infoØgetid3*org> | |
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| 15 | // | Allan Hansen <ahØartemis*dk> | |
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| 16 | // +----------------------------------------------------------------------+ |
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| 17 | // | write.vorbis.php | |
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| 18 | // | writing module for vorbis tags | |
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| 19 | // | dependencies: vorbiscomment binary. | |
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| 20 | // +----------------------------------------------------------------------+ |
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| 21 | // |
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| 22 | // $Id: write.vorbis.php 3318 2009-05-20 21:54:10Z vdigital $ |
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| 23 | |
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| 24 | |
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| 25 | class getid3_write_vorbis extends getid3_handler_write |
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| 26 | { |
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| 27 | |
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| 28 | public $comments = array (); |
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| 29 | |
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| 30 | |
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| 31 | public function __construct($filename) { |
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| 32 | |
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| 33 | if (ini_get('safe_mode')) { |
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| 34 | throw new getid3_exception('PHP running in Safe Mode (backtick operator not available). Cannot call vorbiscomment binary.'); |
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| 35 | } |
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| 36 | |
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| 37 | static $initialized; |
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| 38 | if (!$initialized) { |
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| 39 | |
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| 40 | // check existance and version of vorbiscomment |
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| 41 | if (!ereg('^Vorbiscomment ([0-9]+\.[0-9]+\.[0-9]+)', `vorbiscomment --version 2>&1`, $r)) { |
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| 42 | throw new getid3_exception('Fatal: vorbiscomment binary not available.'); |
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| 43 | } |
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| 44 | if (strnatcmp($r[1], '1.0.0') == -1) { |
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| 45 | throw new getid3_exception('Fatal: vorbiscomment version 1.0.0 or newer is required, available version: ' . $r[1] . '.'); |
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| 46 | } |
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| 47 | |
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| 48 | $initialized = true; |
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| 49 | } |
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| 50 | |
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| 51 | parent::__construct($filename); |
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| 52 | } |
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| 53 | |
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| 54 | |
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| 55 | public function read() { |
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| 56 | |
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| 57 | // read info with vorbiscomment |
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| 58 | if (!$info = trim(`vorbiscomment -l "$this->filename"`)) { |
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| 59 | return; |
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| 60 | } |
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| 61 | |
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| 62 | // process info |
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| 63 | foreach (explode("\n", $info) as $line) { |
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| 64 | |
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| 65 | $pos = strpos($line, '='); |
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| 66 | |
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| 67 | $key = strtolower(substr($line, 0, $pos)); |
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| 68 | $value = substr($line, $pos+1); |
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| 69 | |
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| 70 | $this->comments[$key][] = $value; |
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| 71 | } |
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| 72 | |
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| 73 | // convert single element arrays to string |
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| 74 | foreach ($this->comments as $key => $value) { |
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| 75 | if (sizeof($value) == 1) { |
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| 76 | $this->comments[$key] = $value[0]; |
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| 77 | } |
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| 78 | } |
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| 79 | |
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| 80 | return true; |
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| 81 | } |
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| 82 | |
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| 83 | |
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| 84 | public function write() { |
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| 85 | |
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| 86 | // create temp file with new comments |
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| 87 | $temp_filename = tempnam('*', 'getID3'); |
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| 88 | if (!$fp = @fopen($temp_filename, 'wb')) { |
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| 89 | throw new getid3_exception('Could not write temporary file.'); |
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| 90 | } |
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| 91 | fwrite($fp, $this->generate_tag()); |
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| 92 | fclose($fp); |
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| 93 | |
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| 94 | // write comments |
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| 95 | $this->save_permissions(); |
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| 96 | if ($error = `vorbiscomment -w --raw -c "$temp_filename" "$this->filename" 2>&1`) { |
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| 97 | throw new getid3_exception('Fatal: vorbiscomment returned error: ' . $error); |
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| 98 | } |
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| 99 | $this->restore_permissions(); |
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| 100 | |
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| 101 | // success |
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| 102 | @unlink($temp_filename); |
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| 103 | return true; |
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| 104 | } |
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| 105 | |
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| 106 | |
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| 107 | protected function generate_tag() { |
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| 108 | |
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| 109 | if (!$this->comments) { |
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| 110 | throw new getid3_exception('Cannot write empty tag, use remove() instead.'); |
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| 111 | } |
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| 112 | |
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| 113 | $result = ''; |
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| 114 | |
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| 115 | foreach ($this->comments as $key => $values) { |
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| 116 | |
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| 117 | // A case-insensitive vobiscomment field name that may consist of ASCII 0x20 through 0x7D, 0x3D ('=') excluded. |
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| 118 | // ASCII 0x41 through 0x5A inclusive (A-Z) is to be considered equivalent to ASCII 0x61 through 0x7A inclusive (a-z). |
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| 119 | if (preg_match("/[^\x20-\x7D]|\x3D/", $key)) { |
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| 120 | throw new getid3_exception('Field name "' . $key . '" contains invalid character(s).'); |
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| 121 | } |
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| 122 | |
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| 123 | $key = strtolower($key); |
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| 124 | |
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| 125 | if (!is_array($values)) { |
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| 126 | $values = array ($values); |
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| 127 | } |
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| 128 | |
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| 129 | foreach ($values as $value) { |
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| 130 | if (strstr($value, "\n") || strstr($value, "\r")) { |
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| 131 | throw new getid3_exception('Multi-line comments not supported (value contains \n or \r)'); |
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| 132 | } |
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| 133 | $result .= $key . '=' . $value . "\n"; |
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| 134 | } |
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| 135 | |
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| 136 | } |
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| 137 | |
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| 138 | return $result; |
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| 139 | } |
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| 140 | |
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| 141 | |
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| 142 | public function remove() { |
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| 143 | |
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| 144 | // create temp file with new comments |
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| 145 | $temp_filename = tempnam('*', 'getID3'); |
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| 146 | if (!$fp = @fopen($temp_filename, 'wb')) { |
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| 147 | throw new getid3_exception('Could not write temporary file.'); |
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| 148 | } |
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| 149 | fwrite($fp, ''); |
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| 150 | fclose($fp); |
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| 151 | |
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| 152 | // write comments |
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| 153 | $this->save_permissions(); |
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| 154 | if ($error = `vorbiscomment -w --raw -c "$temp_filename" "$this->filename" 2>&1`) { |
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| 155 | throw new getid3_exception('Fatal: vorbiscomment returned error: ' . $error); |
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| 156 | } |
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| 157 | $this->restore_permissions(); |
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| 158 | |
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| 159 | // success when removing non-existant tag |
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| 160 | @unlink($temp_filename); |
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| 161 | return true; |
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| 162 | } |
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| 163 | |
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| 164 | } |
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| 165 | |
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| 166 | ?> |
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