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-rw-r--r--includes/getid3/module.tag.lyrics3.php326
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diff --git a/includes/getid3/module.tag.lyrics3.php b/includes/getid3/module.tag.lyrics3.php
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+++ b/includes/getid3/module.tag.lyrics3.php
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+<?php
+
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org> //
+// available at https://github.com/JamesHeinrich/getID3 //
+// or https://www.getid3.org //
+// or http://getid3.sourceforge.net //
+// see readme.txt for more details //
+/////////////////////////////////////////////////////////////////
+/// //
+// module.tag.lyrics3.php //
+// module for analyzing Lyrics3 tags //
+// dependencies: module.tag.apetag.php (optional) //
+// ///
+/////////////////////////////////////////////////////////////////
+
+if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
+ exit;
+}
+class getid3_lyrics3 extends getid3_handler
+{
+ /**
+ * @return bool
+ */
+ public function Analyze() {
+ $info = &$this->getid3->info;
+
+ // http://www.volweb.cz/str/tags.htm
+
+ if (!getid3_lib::intValueSupported($info['filesize'])) {
+ $this->warning('Unable to check for Lyrics3 because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB');
+ return false;
+ }
+
+ $this->fseek((0 - 128 - 9 - 6), SEEK_END); // end - ID3v1 - "LYRICSEND" - [Lyrics3size]
+ $lyrics3_id3v1 = $this->fread(128 + 9 + 6);
+ $lyrics3lsz = (int) substr($lyrics3_id3v1, 0, 6); // Lyrics3size
+ $lyrics3end = substr($lyrics3_id3v1, 6, 9); // LYRICSEND or LYRICS200
+ $id3v1tag = substr($lyrics3_id3v1, 15, 128); // ID3v1
+
+ if ($lyrics3end == 'LYRICSEND') {
+ // Lyrics3v1, ID3v1, no APE
+
+ $lyrics3size = 5100;
+ $lyrics3offset = $info['filesize'] - 128 - $lyrics3size;
+ $lyrics3version = 1;
+
+ } elseif ($lyrics3end == 'LYRICS200') {
+ // Lyrics3v2, ID3v1, no APE
+
+ // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200'
+ $lyrics3size = $lyrics3lsz + 6 + strlen('LYRICS200');
+ $lyrics3offset = $info['filesize'] - 128 - $lyrics3size;
+ $lyrics3version = 2;
+
+ } elseif (substr(strrev($lyrics3_id3v1), 0, 9) == strrev('LYRICSEND')) {
+ // Lyrics3v1, no ID3v1, no APE
+
+ $lyrics3size = 5100;
+ $lyrics3offset = $info['filesize'] - $lyrics3size;
+ $lyrics3version = 1;
+ $lyrics3offset = $info['filesize'] - $lyrics3size;
+
+ } elseif (substr(strrev($lyrics3_id3v1), 0, 9) == strrev('LYRICS200')) {
+
+ // Lyrics3v2, no ID3v1, no APE
+
+ $lyrics3size = (int) strrev(substr(strrev($lyrics3_id3v1), 9, 6)) + 6 + strlen('LYRICS200'); // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200'
+ $lyrics3offset = $info['filesize'] - $lyrics3size;
+ $lyrics3version = 2;
+
+ } else {
+
+ if (isset($info['ape']['tag_offset_start']) && ($info['ape']['tag_offset_start'] > 15)) {
+
+ $this->fseek($info['ape']['tag_offset_start'] - 15);
+ $lyrics3lsz = $this->fread(6);
+ $lyrics3end = $this->fread(9);
+
+ if ($lyrics3end == 'LYRICSEND') {
+ // Lyrics3v1, APE, maybe ID3v1
+
+ $lyrics3size = 5100;
+ $lyrics3offset = $info['ape']['tag_offset_start'] - $lyrics3size;
+ $info['avdataend'] = $lyrics3offset;
+ $lyrics3version = 1;
+ $this->warning('APE tag located after Lyrics3, will probably break Lyrics3 compatability');
+
+ } elseif ($lyrics3end == 'LYRICS200') {
+ // Lyrics3v2, APE, maybe ID3v1
+
+ $lyrics3size = $lyrics3lsz + 6 + strlen('LYRICS200'); // LSZ = lyrics + 'LYRICSBEGIN'; add 6-byte size field; add 'LYRICS200'
+ $lyrics3offset = $info['ape']['tag_offset_start'] - $lyrics3size;
+ $lyrics3version = 2;
+ $this->warning('APE tag located after Lyrics3, will probably break Lyrics3 compatability');
+
+ }
+
+ }
+
+ }
+
+ if (isset($lyrics3offset) && isset($lyrics3version) && isset($lyrics3size)) {
+ $info['avdataend'] = $lyrics3offset;
+ $this->getLyrics3Data($lyrics3offset, $lyrics3version, $lyrics3size);
+
+ if (!isset($info['ape'])) {
+ if (isset($info['lyrics3']['tag_offset_start'])) {
+ $GETID3_ERRORARRAY = &$info['warning'];
+ getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.apetag.php', __FILE__, true);
+ $getid3_temp = new getID3();
+ $getid3_temp->openfile($this->getid3->filename, $this->getid3->info['filesize'], $this->getid3->fp);
+ $getid3_apetag = new getid3_apetag($getid3_temp);
+ $getid3_apetag->overrideendoffset = $info['lyrics3']['tag_offset_start'];
+ $getid3_apetag->Analyze();
+ if (!empty($getid3_temp->info['ape'])) {
+ $info['ape'] = $getid3_temp->info['ape'];
+ }
+ if (!empty($getid3_temp->info['replay_gain'])) {
+ $info['replay_gain'] = $getid3_temp->info['replay_gain'];
+ }
+ unset($getid3_temp, $getid3_apetag);
+ } else {
+ $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)');
+ }
+ }
+
+ }
+
+ return true;
+ }
+
+ /**
+ * @param int $endoffset
+ * @param int $version
+ * @param int $length
+ *
+ * @return bool
+ */
+ public function getLyrics3Data($endoffset, $version, $length) {
+ // http://www.volweb.cz/str/tags.htm
+
+ $info = &$this->getid3->info;
+
+ if (!getid3_lib::intValueSupported($endoffset)) {
+ $this->warning('Unable to check for Lyrics3 because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB');
+ return false;
+ }
+
+ $this->fseek($endoffset);
+ if ($length <= 0) {
+ return false;
+ }
+ $rawdata = $this->fread($length);
+
+ $ParsedLyrics3 = array();
+
+ $ParsedLyrics3['raw']['lyrics3version'] = $version;
+ $ParsedLyrics3['raw']['lyrics3tagsize'] = $length;
+ $ParsedLyrics3['tag_offset_start'] = $endoffset;
+ $ParsedLyrics3['tag_offset_end'] = $endoffset + $length - 1;
+
+ if (substr($rawdata, 0, 11) != 'LYRICSBEGIN') {
+ if (strpos($rawdata, 'LYRICSBEGIN') !== false) {
+
+ $this->warning('"LYRICSBEGIN" expected at '.$endoffset.' but actually found at '.($endoffset + strpos($rawdata, 'LYRICSBEGIN')).' - this is invalid for Lyrics3 v'.$version);
+ $info['avdataend'] = $endoffset + strpos($rawdata, 'LYRICSBEGIN');
+ $rawdata = substr($rawdata, strpos($rawdata, 'LYRICSBEGIN'));
+ $length = strlen($rawdata);
+ $ParsedLyrics3['tag_offset_start'] = $info['avdataend'];
+ $ParsedLyrics3['raw']['lyrics3tagsize'] = $length;
+
+ } else {
+
+ $this->error('"LYRICSBEGIN" expected at '.$endoffset.' but found "'.substr($rawdata, 0, 11).'" instead');
+ return false;
+
+ }
+
+ }
+
+ switch ($version) {
+
+ case 1:
+ if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICSEND') {
+ $ParsedLyrics3['raw']['LYR'] = trim(substr($rawdata, 11, strlen($rawdata) - 11 - 9));
+ $this->Lyrics3LyricsTimestampParse($ParsedLyrics3);
+ } else {
+ $this->error('"LYRICSEND" expected at '.($this->ftell() - 11 + $length - 9).' but found "'.substr($rawdata, strlen($rawdata) - 9, 9).'" instead');
+ return false;
+ }
+ break;
+
+ case 2:
+ if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICS200') {
+ $ParsedLyrics3['raw']['unparsed'] = substr($rawdata, 11, strlen($rawdata) - 11 - 9 - 6); // LYRICSBEGIN + LYRICS200 + LSZ
+ $rawdata = $ParsedLyrics3['raw']['unparsed'];
+ while (strlen($rawdata) > 0) {
+ $fieldname = substr($rawdata, 0, 3);
+ $fieldsize = (int) substr($rawdata, 3, 5);
+ $ParsedLyrics3['raw'][$fieldname] = substr($rawdata, 8, $fieldsize);
+ $rawdata = substr($rawdata, 3 + 5 + $fieldsize);
+ }
+
+ if (isset($ParsedLyrics3['raw']['IND'])) {
+ $i = 0;
+ $flagnames = array('lyrics', 'timestamps', 'inhibitrandom');
+ foreach ($flagnames as $flagname) {
+ if (strlen($ParsedLyrics3['raw']['IND']) > $i++) {
+ $ParsedLyrics3['flags'][$flagname] = $this->IntString2Bool(substr($ParsedLyrics3['raw']['IND'], $i, 1 - 1));
+ }
+ }
+ }
+
+ $fieldnametranslation = array('ETT'=>'title', 'EAR'=>'artist', 'EAL'=>'album', 'INF'=>'comment', 'AUT'=>'author');
+ foreach ($fieldnametranslation as $key => $value) {
+ if (isset($ParsedLyrics3['raw'][$key])) {
+ $ParsedLyrics3['comments'][$value][] = trim($ParsedLyrics3['raw'][$key]);
+ }
+ }
+
+ if (isset($ParsedLyrics3['raw']['IMG'])) {
+ $imagestrings = explode("\r\n", $ParsedLyrics3['raw']['IMG']);
+ foreach ($imagestrings as $key => $imagestring) {
+ if (strpos($imagestring, '||') !== false) {
+ $imagearray = explode('||', $imagestring);
+ $ParsedLyrics3['images'][$key]['filename'] = (isset($imagearray[0]) ? $imagearray[0] : '');
+ $ParsedLyrics3['images'][$key]['description'] = (isset($imagearray[1]) ? $imagearray[1] : '');
+ $ParsedLyrics3['images'][$key]['timestamp'] = $this->Lyrics3Timestamp2Seconds(isset($imagearray[2]) ? $imagearray[2] : '');
+ }
+ }
+ }
+ if (isset($ParsedLyrics3['raw']['LYR'])) {
+ $this->Lyrics3LyricsTimestampParse($ParsedLyrics3);
+ }
+ } else {
+ $this->error('"LYRICS200" expected at '.($this->ftell() - 11 + $length - 9).' but found "'.substr($rawdata, strlen($rawdata) - 9, 9).'" instead');
+ return false;
+ }
+ break;
+
+ default:
+ $this->error('Cannot process Lyrics3 version '.$version.' (only v1 and v2)');
+ return false;
+ }
+
+
+ if (isset($info['id3v1']['tag_offset_start']) && ($info['id3v1']['tag_offset_start'] <= $ParsedLyrics3['tag_offset_end'])) {
+ $this->warning('ID3v1 tag information ignored since it appears to be a false synch in Lyrics3 tag data');
+ unset($info['id3v1']);
+ foreach ($info['warning'] as $key => $value) {
+ if ($value == 'Some ID3v1 fields do not use NULL characters for padding') {
+ unset($info['warning'][$key]);
+ sort($info['warning']);
+ break;
+ }
+ }
+ }
+
+ $info['lyrics3'] = $ParsedLyrics3;
+
+ return true;
+ }
+
+ /**
+ * @param string $rawtimestamp
+ *
+ * @return int|false
+ */
+ public function Lyrics3Timestamp2Seconds($rawtimestamp) {
+ if (preg_match('#^\\[([0-9]{2}):([0-9]{2})\\]$#', $rawtimestamp, $regs)) {
+ return (int) (($regs[1] * 60) + $regs[2]);
+ }
+ return false;
+ }
+
+ /**
+ * @param array $Lyrics3data
+ *
+ * @return bool
+ */
+ public function Lyrics3LyricsTimestampParse(&$Lyrics3data) {
+ $lyricsarray = explode("\r\n", $Lyrics3data['raw']['LYR']);
+ $notimestamplyricsarray = array();
+ foreach ($lyricsarray as $key => $lyricline) {
+ $regs = array();
+ unset($thislinetimestamps);
+ while (preg_match('#^(\\[[0-9]{2}:[0-9]{2}\\])#', $lyricline, $regs)) {
+ $thislinetimestamps[] = $this->Lyrics3Timestamp2Seconds($regs[0]);
+ $lyricline = str_replace($regs[0], '', $lyricline);
+ }
+ $notimestamplyricsarray[$key] = $lyricline;
+ if (isset($thislinetimestamps) && is_array($thislinetimestamps)) {
+ sort($thislinetimestamps);
+ foreach ($thislinetimestamps as $timestampkey => $timestamp) {
+ if (isset($Lyrics3data['synchedlyrics'][$timestamp])) {
+ // timestamps only have a 1-second resolution, it's possible that multiple lines
+ // could have the same timestamp, if so, append
+ $Lyrics3data['synchedlyrics'][$timestamp] .= "\r\n".$lyricline;
+ } else {
+ $Lyrics3data['synchedlyrics'][$timestamp] = $lyricline;
+ }
+ }
+ }
+ }
+ $Lyrics3data['unsynchedlyrics'] = implode("\r\n", $notimestamplyricsarray);
+ if (isset($Lyrics3data['synchedlyrics']) && is_array($Lyrics3data['synchedlyrics'])) {
+ ksort($Lyrics3data['synchedlyrics']);
+ }
+ return true;
+ }
+
+ /**
+ * @param string $char
+ *
+ * @return bool|null
+ */
+ public function IntString2Bool($char) {
+ if ($char == '1') {
+ return true;
+ } elseif ($char == '0') {
+ return false;
+ }
+ return null;
+ }
+}
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