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1 <?php 2 3 ///////////////////////////////////////////////////////////////// 4 /// getID3() by James Heinrich <info@getid3.org> // 5 // available at https://github.com/JamesHeinrich/getID3 // 6 // or https://www.getid3.org // 7 // or http://getid3.sourceforge.net // 8 // see readme.txt for more details // 9 ///////////////////////////////////////////////////////////////// 10 /// // 11 // module.tag.lyrics3.php // 12 // module for analyzing Lyrics3 tags // 13 // dependencies: module.tag.apetag.php (optional) // 14 // /// 15 ///////////////////////////////////////////////////////////////// 16 17 if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers 18 exit; 19 } 20 class getid3_lyrics3 extends getid3_handler 21 { 22 /** 23 * @return bool 24 */ 25 public function Analyze() { 26 $info = &$this->getid3->info; 27 28 // http://www.volweb.cz/str/tags.htm 29 30 if (!getid3_lib::intValueSupported($info['filesize'])) { 31 $this->warning('Unable to check for Lyrics3 because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB'); 32 return false; 33 } 34 35 $this->fseek((0 - 128 - 9 - 6), SEEK_END); // end - ID3v1 - "LYRICSEND" - [Lyrics3size] 36 $lyrics3offset = null; 37 $lyrics3version = null; 38 $lyrics3size = null; 39 $lyrics3_id3v1 = $this->fread(128 + 9 + 6); 40 $lyrics3lsz = (int) substr($lyrics3_id3v1, 0, 6); // Lyrics3size 41 $lyrics3end = substr($lyrics3_id3v1, 6, 9); // LYRICSEND or LYRICS200 42 $id3v1tag = substr($lyrics3_id3v1, 15, 128); // ID3v1 43 44 if ($lyrics3end == 'LYRICSEND') { 45 // Lyrics3v1, ID3v1, no APE 46 47 $lyrics3size = 5100; 48 $lyrics3offset = $info['filesize'] - 128 - $lyrics3size; 49 $lyrics3version = 1; 50 51 } elseif ($lyrics3end == 'LYRICS200') { 52 // Lyrics3v2, ID3v1, no APE 53 54 // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200' 55 $lyrics3size = $lyrics3lsz + 6 + strlen('LYRICS200'); 56 $lyrics3offset = $info['filesize'] - 128 - $lyrics3size; 57 $lyrics3version = 2; 58 59 } elseif (substr(strrev($lyrics3_id3v1), 0, 9) == strrev('LYRICSEND')) { 60 // Lyrics3v1, no ID3v1, no APE 61 62 $lyrics3size = 5100; 63 $lyrics3offset = $info['filesize'] - $lyrics3size; 64 $lyrics3version = 1; 65 $lyrics3offset = $info['filesize'] - $lyrics3size; 66 67 } elseif (substr(strrev($lyrics3_id3v1), 0, 9) == strrev('LYRICS200')) { 68 69 // Lyrics3v2, no ID3v1, no APE 70 71 $lyrics3size = (int) strrev(substr(strrev($lyrics3_id3v1), 9, 6)) + 6 + strlen('LYRICS200'); // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200' 72 $lyrics3offset = $info['filesize'] - $lyrics3size; 73 $lyrics3version = 2; 74 75 } else { 76 77 if (isset($info['ape']['tag_offset_start']) && ($info['ape']['tag_offset_start'] > 15)) { 78 79 $this->fseek($info['ape']['tag_offset_start'] - 15); 80 $lyrics3lsz = $this->fread(6); 81 $lyrics3end = $this->fread(9); 82 83 if ($lyrics3end == 'LYRICSEND') { 84 // Lyrics3v1, APE, maybe ID3v1 85 86 $lyrics3size = 5100; 87 $lyrics3offset = $info['ape']['tag_offset_start'] - $lyrics3size; 88 $info['avdataend'] = $lyrics3offset; 89 $lyrics3version = 1; 90 $this->warning('APE tag located after Lyrics3, will probably break Lyrics3 compatability'); 91 92 } elseif ($lyrics3end == 'LYRICS200') { 93 // Lyrics3v2, APE, maybe ID3v1 94 95 $lyrics3size = $lyrics3lsz + 6 + strlen('LYRICS200'); // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200' 96 $lyrics3offset = $info['ape']['tag_offset_start'] - $lyrics3size; 97 $lyrics3version = 2; 98 $this->warning('APE tag located after Lyrics3, will probably break Lyrics3 compatability'); 99 100 } 101 102 } 103 104 } 105 106 if (isset($lyrics3offset) && isset($lyrics3version) && isset($lyrics3size)) { 107 $info['avdataend'] = $lyrics3offset; 108 $this->getLyrics3Data($lyrics3offset, $lyrics3version, $lyrics3size); 109 110 if (!isset($info['ape'])) { 111 if (isset($info['lyrics3']['tag_offset_start'])) { 112 $GETID3_ERRORARRAY = &$info['warning']; 113 getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.apetag.php', __FILE__, true); 114 $getid3_temp = new getID3(); 115 $getid3_temp->openfile($this->getid3->filename, $this->getid3->info['filesize'], $this->getid3->fp); 116 $getid3_apetag = new getid3_apetag($getid3_temp); 117 $getid3_apetag->overrideendoffset = $info['lyrics3']['tag_offset_start']; 118 $getid3_apetag->Analyze(); 119 if (!empty($getid3_temp->info['ape'])) { 120 $info['ape'] = $getid3_temp->info['ape']; 121 } 122 if (!empty($getid3_temp->info['replay_gain'])) { 123 $info['replay_gain'] = $getid3_temp->info['replay_gain']; 124 } 125 unset($getid3_temp, $getid3_apetag); 126 } else { 127 $this->warning('Lyrics3 and APE tags appear to have become entangled (most likely due to updating the APE tags with a non-Lyrics3-aware tagger)'); 128 } 129 } 130 131 } 132 133 return true; 134 } 135 136 /** 137 * @param int $endoffset 138 * @param int $version 139 * @param int $length 140 * 141 * @return bool 142 */ 143 public function getLyrics3Data($endoffset, $version, $length) { 144 // http://www.volweb.cz/str/tags.htm 145 146 $info = &$this->getid3->info; 147 148 if (!getid3_lib::intValueSupported($endoffset)) { 149 $this->warning('Unable to check for Lyrics3 because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB'); 150 return false; 151 } 152 153 $this->fseek($endoffset); 154 if ($length <= 0) { 155 return false; 156 } 157 $rawdata = $this->fread($length); 158 159 $ParsedLyrics3 = array(); 160 161 $ParsedLyrics3['raw']['lyrics3version'] = $version; 162 $ParsedLyrics3['raw']['lyrics3tagsize'] = $length; 163 $ParsedLyrics3['tag_offset_start'] = $endoffset; 164 $ParsedLyrics3['tag_offset_end'] = $endoffset + $length - 1; 165 166 if (substr($rawdata, 0, 11) != 'LYRICSBEGIN') { 167 if (strpos($rawdata, 'LYRICSBEGIN') !== false) { 168 169 $this->warning('"LYRICSBEGIN" expected at '.$endoffset.' but actually found at '.($endoffset + strpos($rawdata, 'LYRICSBEGIN')).' - this is invalid for Lyrics3 v'.$version); 170 $info['avdataend'] = $endoffset + strpos($rawdata, 'LYRICSBEGIN'); 171 $rawdata = substr($rawdata, strpos($rawdata, 'LYRICSBEGIN')); 172 $length = strlen($rawdata); 173 $ParsedLyrics3['tag_offset_start'] = $info['avdataend']; 174 $ParsedLyrics3['raw']['lyrics3tagsize'] = $length; 175 176 } else { 177 178 $this->error('"LYRICSBEGIN" expected at '.$endoffset.' but found "'.substr($rawdata, 0, 11).'" instead'); 179 return false; 180 181 } 182 183 } 184 185 switch ($version) { 186 187 case 1: 188 if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICSEND') { 189 $ParsedLyrics3['raw']['LYR'] = trim(substr($rawdata, 11, strlen($rawdata) - 11 - 9)); 190 $this->Lyrics3LyricsTimestampParse($ParsedLyrics3); 191 } else { 192 $this->error('"LYRICSEND" expected at '.($this->ftell() - 11 + $length - 9).' but found "'.substr($rawdata, strlen($rawdata) - 9, 9).'" instead'); 193 return false; 194 } 195 break; 196 197 case 2: 198 if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICS200') { 199 $ParsedLyrics3['raw']['unparsed'] = substr($rawdata, 11, strlen($rawdata) - 11 - 9 - 6); // LYRICSBEGIN + LYRICS200 + LSZ 200 $rawdata = $ParsedLyrics3['raw']['unparsed']; 201 while (strlen($rawdata) > 0) { 202 $fieldname = substr($rawdata, 0, 3); 203 $fieldsize = (int) substr($rawdata, 3, 5); 204 $ParsedLyrics3['raw'][$fieldname] = substr($rawdata, 8, $fieldsize); 205 $rawdata = substr($rawdata, 3 + 5 + $fieldsize); 206 } 207 208 if (isset($ParsedLyrics3['raw']['IND'])) { 209 $i = 0; 210 $flagnames = array('lyrics', 'timestamps', 'inhibitrandom'); 211 foreach ($flagnames as $flagname) { 212 if (strlen($ParsedLyrics3['raw']['IND']) > $i++) { 213 $ParsedLyrics3['flags'][$flagname] = $this->IntString2Bool(substr($ParsedLyrics3['raw']['IND'], $i, 1 - 1)); 214 } 215 } 216 } 217 218 $fieldnametranslation = array('ETT'=>'title', 'EAR'=>'artist', 'EAL'=>'album', 'INF'=>'comment', 'AUT'=>'author'); 219 foreach ($fieldnametranslation as $key => $value) { 220 if (isset($ParsedLyrics3['raw'][$key])) { 221 $ParsedLyrics3['comments'][$value][] = trim($ParsedLyrics3['raw'][$key]); 222 } 223 } 224 225 if (isset($ParsedLyrics3['raw']['IMG'])) { 226 $imagestrings = explode("\r\n", $ParsedLyrics3['raw']['IMG']); 227 foreach ($imagestrings as $key => $imagestring) { 228 if (strpos($imagestring, '||') !== false) { 229 $imagearray = explode('||', $imagestring); 230 $ParsedLyrics3['images'][$key]['filename'] = (isset($imagearray[0]) ? $imagearray[0] : ''); 231 $ParsedLyrics3['images'][$key]['description'] = (isset($imagearray[1]) ? $imagearray[1] : ''); 232 $ParsedLyrics3['images'][$key]['timestamp'] = $this->Lyrics3Timestamp2Seconds(isset($imagearray[2]) ? $imagearray[2] : ''); 233 } 234 } 235 } 236 if (isset($ParsedLyrics3['raw']['LYR'])) { 237 $this->Lyrics3LyricsTimestampParse($ParsedLyrics3); 238 } 239 } else { 240 $this->error('"LYRICS200" expected at '.($this->ftell() - 11 + $length - 9).' but found "'.substr($rawdata, strlen($rawdata) - 9, 9).'" instead'); 241 return false; 242 } 243 break; 244 245 default: 246 $this->error('Cannot process Lyrics3 version '.$version.' (only v1 and v2)'); 247 return false; 248 } 249 250 251 if (isset($info['id3v1']['tag_offset_start']) && ($info['id3v1']['tag_offset_start'] <= $ParsedLyrics3['tag_offset_end'])) { 252 $this->warning('ID3v1 tag information ignored since it appears to be a false synch in Lyrics3 tag data'); 253 unset($info['id3v1']); 254 foreach ($info['warning'] as $key => $value) { 255 if ($value == 'Some ID3v1 fields do not use NULL characters for padding') { 256 unset($info['warning'][$key]); 257 sort($info['warning']); 258 break; 259 } 260 } 261 } 262 263 $info['lyrics3'] = $ParsedLyrics3; 264 265 return true; 266 } 267 268 /** 269 * @param string $rawtimestamp 270 * 271 * @return int|false 272 */ 273 public function Lyrics3Timestamp2Seconds($rawtimestamp) { 274 if (preg_match('#^\\[([0-9]{2}):([0-9]{2})\\]$#', $rawtimestamp, $regs)) { 275 return (int) (($regs[1] * 60) + $regs[2]); 276 } 277 return false; 278 } 279 280 /** 281 * @param array $Lyrics3data 282 * 283 * @return bool 284 */ 285 public function Lyrics3LyricsTimestampParse(&$Lyrics3data) { 286 $lyricsarray = explode("\r\n", $Lyrics3data['raw']['LYR']); 287 $notimestamplyricsarray = array(); 288 foreach ($lyricsarray as $key => $lyricline) { 289 $regs = array(); 290 unset($thislinetimestamps); 291 while (preg_match('#^(\\[[0-9]{2}:[0-9]{2}\\])#', $lyricline, $regs)) { 292 $thislinetimestamps[] = $this->Lyrics3Timestamp2Seconds($regs[0]); 293 $lyricline = str_replace($regs[0], '', $lyricline); 294 } 295 $notimestamplyricsarray[$key] = $lyricline; 296 if (isset($thislinetimestamps) && is_array($thislinetimestamps)) { 297 sort($thislinetimestamps); 298 foreach ($thislinetimestamps as $timestampkey => $timestamp) { 299 if (isset($Lyrics3data['synchedlyrics'][$timestamp])) { 300 // timestamps only have a 1-second resolution, it's possible that multiple lines 301 // could have the same timestamp, if so, append 302 $Lyrics3data['synchedlyrics'][$timestamp] .= "\r\n".$lyricline; 303 } else { 304 $Lyrics3data['synchedlyrics'][$timestamp] = $lyricline; 305 } 306 } 307 } 308 } 309 $Lyrics3data['unsynchedlyrics'] = implode("\r\n", $notimestamplyricsarray); 310 if (isset($Lyrics3data['synchedlyrics']) && is_array($Lyrics3data['synchedlyrics'])) { 311 ksort($Lyrics3data['synchedlyrics']); 312 } 313 return true; 314 } 315 316 /** 317 * @param string $char 318 * 319 * @return bool|null 320 */ 321 public function IntString2Bool($char) { 322 if ($char == '1') { 323 return true; 324 } elseif ($char == '0') { 325 return false; 326 } 327 return null; 328 } 329 }
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| Generated: Sun Dec 22 01:00:02 2024 | Cross-referenced by PHPXref 0.7.1 |