454 lines
18 KiB
PHP
454 lines
18 KiB
PHP
<?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.apetag.php //
|
|
// module for analyzing APE tags //
|
|
// dependencies: NONE //
|
|
// ///
|
|
/////////////////////////////////////////////////////////////////
|
|
|
|
if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
|
|
exit;
|
|
}
|
|
|
|
class getid3_apetag extends getid3_handler
|
|
{
|
|
/**
|
|
* true: return full data for all attachments;
|
|
* false: return no data for all attachments;
|
|
* integer: return data for attachments <= than this;
|
|
* string: save as file to this directory.
|
|
*
|
|
* @var int|bool|string
|
|
*/
|
|
public $inline_attachments = true;
|
|
|
|
public $overrideendoffset = 0;
|
|
|
|
/**
|
|
* @return bool
|
|
*/
|
|
public function Analyze() {
|
|
$info = &$this->getid3->info;
|
|
|
|
if (!getid3_lib::intValueSupported($info['filesize'])) {
|
|
$this->warning('Unable to check for APEtags because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB');
|
|
return false;
|
|
}
|
|
|
|
$id3v1tagsize = 128;
|
|
$apetagheadersize = 32;
|
|
$lyrics3tagsize = 10;
|
|
|
|
if ($this->overrideendoffset == 0) {
|
|
|
|
$this->fseek(0 - $id3v1tagsize - $apetagheadersize - $lyrics3tagsize, SEEK_END);
|
|
$APEfooterID3v1 = $this->fread($id3v1tagsize + $apetagheadersize + $lyrics3tagsize);
|
|
|
|
//if (preg_match('/APETAGEX.{24}TAG.{125}$/i', $APEfooterID3v1)) {
|
|
if (substr($APEfooterID3v1, strlen($APEfooterID3v1) - $id3v1tagsize - $apetagheadersize, 8) == 'APETAGEX') {
|
|
|
|
// APE tag found before ID3v1
|
|
$info['ape']['tag_offset_end'] = $info['filesize'] - $id3v1tagsize;
|
|
|
|
//} elseif (preg_match('/APETAGEX.{24}$/i', $APEfooterID3v1)) {
|
|
} elseif (substr($APEfooterID3v1, strlen($APEfooterID3v1) - $apetagheadersize, 8) == 'APETAGEX') {
|
|
|
|
// APE tag found, no ID3v1
|
|
$info['ape']['tag_offset_end'] = $info['filesize'];
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
$this->fseek($this->overrideendoffset - $apetagheadersize);
|
|
if ($this->fread(8) == 'APETAGEX') {
|
|
$info['ape']['tag_offset_end'] = $this->overrideendoffset;
|
|
}
|
|
|
|
}
|
|
if (!isset($info['ape']['tag_offset_end'])) {
|
|
|
|
// APE tag not found
|
|
unset($info['ape']);
|
|
return false;
|
|
|
|
}
|
|
|
|
// shortcut
|
|
$thisfile_ape = &$info['ape'];
|
|
|
|
$this->fseek($thisfile_ape['tag_offset_end'] - $apetagheadersize);
|
|
$APEfooterData = $this->fread(32);
|
|
if (!($thisfile_ape['footer'] = $this->parseAPEheaderFooter($APEfooterData))) {
|
|
$this->error('Error parsing APE footer at offset '.$thisfile_ape['tag_offset_end']);
|
|
return false;
|
|
}
|
|
|
|
if (isset($thisfile_ape['footer']['flags']['header']) && $thisfile_ape['footer']['flags']['header']) {
|
|
$this->fseek($thisfile_ape['tag_offset_end'] - $thisfile_ape['footer']['raw']['tagsize'] - $apetagheadersize);
|
|
$thisfile_ape['tag_offset_start'] = $this->ftell();
|
|
$APEtagData = $this->fread($thisfile_ape['footer']['raw']['tagsize'] + $apetagheadersize);
|
|
} else {
|
|
$thisfile_ape['tag_offset_start'] = $thisfile_ape['tag_offset_end'] - $thisfile_ape['footer']['raw']['tagsize'];
|
|
$this->fseek($thisfile_ape['tag_offset_start']);
|
|
$APEtagData = $this->fread($thisfile_ape['footer']['raw']['tagsize']);
|
|
}
|
|
$info['avdataend'] = $thisfile_ape['tag_offset_start'];
|
|
|
|
if (isset($info['id3v1']['tag_offset_start']) && ($info['id3v1']['tag_offset_start'] < $thisfile_ape['tag_offset_end'])) {
|
|
$this->warning('ID3v1 tag information ignored since it appears to be a false synch in APEtag data');
|
|
unset($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;
|
|
}
|
|
}
|
|
}
|
|
|
|
$offset = 0;
|
|
if (isset($thisfile_ape['footer']['flags']['header']) && $thisfile_ape['footer']['flags']['header']) {
|
|
if ($thisfile_ape['header'] = $this->parseAPEheaderFooter(substr($APEtagData, 0, $apetagheadersize))) {
|
|
$offset += $apetagheadersize;
|
|
} else {
|
|
$this->error('Error parsing APE header at offset '.$thisfile_ape['tag_offset_start']);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// shortcut
|
|
$info['replay_gain'] = array();
|
|
$thisfile_replaygain = &$info['replay_gain'];
|
|
|
|
for ($i = 0; $i < $thisfile_ape['footer']['raw']['tag_items']; $i++) {
|
|
$value_size = getid3_lib::LittleEndian2Int(substr($APEtagData, $offset, 4));
|
|
$offset += 4;
|
|
$item_flags = getid3_lib::LittleEndian2Int(substr($APEtagData, $offset, 4));
|
|
$offset += 4;
|
|
if (strstr(substr($APEtagData, $offset), "\x00") === false) {
|
|
$this->error('Cannot find null-byte (0x00) separator between ItemKey #'.$i.' and value. ItemKey starts '.$offset.' bytes into the APE tag, at file offset '.($thisfile_ape['tag_offset_start'] + $offset));
|
|
return false;
|
|
}
|
|
$ItemKeyLength = strpos($APEtagData, "\x00", $offset) - $offset;
|
|
$item_key = strtolower(substr($APEtagData, $offset, $ItemKeyLength));
|
|
|
|
// shortcut
|
|
$thisfile_ape['items'][$item_key] = array();
|
|
$thisfile_ape_items_current = &$thisfile_ape['items'][$item_key];
|
|
|
|
$thisfile_ape_items_current['offset'] = $thisfile_ape['tag_offset_start'] + $offset;
|
|
|
|
$offset += ($ItemKeyLength + 1); // skip 0x00 terminator
|
|
$thisfile_ape_items_current['data'] = substr($APEtagData, $offset, $value_size);
|
|
$offset += $value_size;
|
|
|
|
$thisfile_ape_items_current['flags'] = $this->parseAPEtagFlags($item_flags);
|
|
switch ($thisfile_ape_items_current['flags']['item_contents_raw']) {
|
|
case 0: // UTF-8
|
|
case 2: // Locator (URL, filename, etc), UTF-8 encoded
|
|
$thisfile_ape_items_current['data'] = explode("\x00", $thisfile_ape_items_current['data']);
|
|
break;
|
|
|
|
case 1: // binary data
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (strtolower($item_key)) {
|
|
// http://wiki.hydrogenaud.io/index.php?title=ReplayGain#MP3Gain
|
|
case 'replaygain_track_gain':
|
|
if (preg_match('#^([\\-\\+][0-9\\.,]{8})( dB)?$#', $thisfile_ape_items_current['data'][0], $matches)) {
|
|
$thisfile_replaygain['track']['adjustment'] = (float) str_replace(',', '.', $matches[1]); // float casting will see "0,95" as zero!
|
|
$thisfile_replaygain['track']['originator'] = 'unspecified';
|
|
} else {
|
|
$this->warning('MP3gainTrackGain value in APEtag appears invalid: "'.$thisfile_ape_items_current['data'][0].'"');
|
|
}
|
|
break;
|
|
|
|
case 'replaygain_track_peak':
|
|
if (preg_match('#^([0-9\\.,]{8})$#', $thisfile_ape_items_current['data'][0], $matches)) {
|
|
$thisfile_replaygain['track']['peak'] = (float) str_replace(',', '.', $matches[1]); // float casting will see "0,95" as zero!
|
|
$thisfile_replaygain['track']['originator'] = 'unspecified';
|
|
if ($thisfile_replaygain['track']['peak'] <= 0) {
|
|
$this->warning('ReplayGain Track peak from APEtag appears invalid: '.$thisfile_replaygain['track']['peak'].' (original value = "'.$thisfile_ape_items_current['data'][0].'")');
|
|
}
|
|
} else {
|
|
$this->warning('MP3gainTrackPeak value in APEtag appears invalid: "'.$thisfile_ape_items_current['data'][0].'"');
|
|
}
|
|
break;
|
|
|
|
case 'replaygain_album_gain':
|
|
if (preg_match('#^([\\-\\+][0-9\\.,]{8})( dB)?$#', $thisfile_ape_items_current['data'][0], $matches)) {
|
|
$thisfile_replaygain['album']['adjustment'] = (float) str_replace(',', '.', $matches[1]); // float casting will see "0,95" as zero!
|
|
$thisfile_replaygain['album']['originator'] = 'unspecified';
|
|
} else {
|
|
$this->warning('MP3gainAlbumGain value in APEtag appears invalid: "'.$thisfile_ape_items_current['data'][0].'"');
|
|
}
|
|
break;
|
|
|
|
case 'replaygain_album_peak':
|
|
if (preg_match('#^([0-9\\.,]{8})$#', $thisfile_ape_items_current['data'][0], $matches)) {
|
|
$thisfile_replaygain['album']['peak'] = (float) str_replace(',', '.', $matches[1]); // float casting will see "0,95" as zero!
|
|
$thisfile_replaygain['album']['originator'] = 'unspecified';
|
|
if ($thisfile_replaygain['album']['peak'] <= 0) {
|
|
$this->warning('ReplayGain Album peak from APEtag appears invalid: '.$thisfile_replaygain['album']['peak'].' (original value = "'.$thisfile_ape_items_current['data'][0].'")');
|
|
}
|
|
} else {
|
|
$this->warning('MP3gainAlbumPeak value in APEtag appears invalid: "'.$thisfile_ape_items_current['data'][0].'"');
|
|
}
|
|
break;
|
|
|
|
case 'mp3gain_undo':
|
|
if (preg_match('#^[\\-\\+][0-9]{3},[\\-\\+][0-9]{3},[NW]$#', $thisfile_ape_items_current['data'][0])) {
|
|
list($mp3gain_undo_left, $mp3gain_undo_right, $mp3gain_undo_wrap) = explode(',', $thisfile_ape_items_current['data'][0]);
|
|
$thisfile_replaygain['mp3gain']['undo_left'] = intval($mp3gain_undo_left);
|
|
$thisfile_replaygain['mp3gain']['undo_right'] = intval($mp3gain_undo_right);
|
|
$thisfile_replaygain['mp3gain']['undo_wrap'] = (($mp3gain_undo_wrap == 'Y') ? true : false);
|
|
} else {
|
|
$this->warning('MP3gainUndo value in APEtag appears invalid: "'.$thisfile_ape_items_current['data'][0].'"');
|
|
}
|
|
break;
|
|
|
|
case 'mp3gain_minmax':
|
|
if (preg_match('#^[0-9]{3},[0-9]{3}$#', $thisfile_ape_items_current['data'][0])) {
|
|
list($mp3gain_globalgain_min, $mp3gain_globalgain_max) = explode(',', $thisfile_ape_items_current['data'][0]);
|
|
$thisfile_replaygain['mp3gain']['globalgain_track_min'] = intval($mp3gain_globalgain_min);
|
|
$thisfile_replaygain['mp3gain']['globalgain_track_max'] = intval($mp3gain_globalgain_max);
|
|
} else {
|
|
$this->warning('MP3gainMinMax value in APEtag appears invalid: "'.$thisfile_ape_items_current['data'][0].'"');
|
|
}
|
|
break;
|
|
|
|
case 'mp3gain_album_minmax':
|
|
if (preg_match('#^[0-9]{3},[0-9]{3}$#', $thisfile_ape_items_current['data'][0])) {
|
|
list($mp3gain_globalgain_album_min, $mp3gain_globalgain_album_max) = explode(',', $thisfile_ape_items_current['data'][0]);
|
|
$thisfile_replaygain['mp3gain']['globalgain_album_min'] = intval($mp3gain_globalgain_album_min);
|
|
$thisfile_replaygain['mp3gain']['globalgain_album_max'] = intval($mp3gain_globalgain_album_max);
|
|
} else {
|
|
$this->warning('MP3gainAlbumMinMax value in APEtag appears invalid: "'.$thisfile_ape_items_current['data'][0].'"');
|
|
}
|
|
break;
|
|
|
|
case 'tracknumber':
|
|
if (is_array($thisfile_ape_items_current['data'])) {
|
|
foreach ($thisfile_ape_items_current['data'] as $comment) {
|
|
$thisfile_ape['comments']['track_number'][] = $comment;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'cover art (artist)':
|
|
case 'cover art (back)':
|
|
case 'cover art (band logo)':
|
|
case 'cover art (band)':
|
|
case 'cover art (colored fish)':
|
|
case 'cover art (composer)':
|
|
case 'cover art (conductor)':
|
|
case 'cover art (front)':
|
|
case 'cover art (icon)':
|
|
case 'cover art (illustration)':
|
|
case 'cover art (lead)':
|
|
case 'cover art (leaflet)':
|
|
case 'cover art (lyricist)':
|
|
case 'cover art (media)':
|
|
case 'cover art (movie scene)':
|
|
case 'cover art (other icon)':
|
|
case 'cover art (other)':
|
|
case 'cover art (performance)':
|
|
case 'cover art (publisher logo)':
|
|
case 'cover art (recording)':
|
|
case 'cover art (studio)':
|
|
// list of possible cover arts from http://taglib-sharp.sourcearchive.com/documentation/2.0.3.0-2/Ape_2Tag_8cs-source.html
|
|
if (is_array($thisfile_ape_items_current['data'])) {
|
|
$this->warning('APEtag "'.$item_key.'" should be flagged as Binary data, but was incorrectly flagged as UTF-8');
|
|
$thisfile_ape_items_current['data'] = implode("\x00", $thisfile_ape_items_current['data']);
|
|
}
|
|
list($thisfile_ape_items_current['filename'], $thisfile_ape_items_current['data']) = explode("\x00", $thisfile_ape_items_current['data'], 2);
|
|
$thisfile_ape_items_current['data_offset'] = $thisfile_ape_items_current['offset'] + strlen($thisfile_ape_items_current['filename']."\x00");
|
|
$thisfile_ape_items_current['data_length'] = strlen($thisfile_ape_items_current['data']);
|
|
|
|
do {
|
|
$thisfile_ape_items_current['image_mime'] = '';
|
|
$imageinfo = array();
|
|
$imagechunkcheck = getid3_lib::GetDataImageSize($thisfile_ape_items_current['data'], $imageinfo);
|
|
if (($imagechunkcheck === false) || !isset($imagechunkcheck[2])) {
|
|
$this->warning('APEtag "'.$item_key.'" contains invalid image data');
|
|
break;
|
|
}
|
|
$thisfile_ape_items_current['image_mime'] = image_type_to_mime_type($imagechunkcheck[2]);
|
|
|
|
if ($this->inline_attachments === false) {
|
|
// skip entirely
|
|
unset($thisfile_ape_items_current['data']);
|
|
break;
|
|
}
|
|
if ($this->inline_attachments === true) {
|
|
// great
|
|
} elseif (is_int($this->inline_attachments)) {
|
|
if ($this->inline_attachments < $thisfile_ape_items_current['data_length']) {
|
|
// too big, skip
|
|
$this->warning('attachment at '.$thisfile_ape_items_current['offset'].' is too large to process inline ('.number_format($thisfile_ape_items_current['data_length']).' bytes)');
|
|
unset($thisfile_ape_items_current['data']);
|
|
break;
|
|
}
|
|
} elseif (is_string($this->inline_attachments)) {
|
|
$this->inline_attachments = rtrim(str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $this->inline_attachments), DIRECTORY_SEPARATOR);
|
|
if (!is_dir($this->inline_attachments) || !getID3::is_writable($this->inline_attachments)) {
|
|
// cannot write, skip
|
|
$this->warning('attachment at '.$thisfile_ape_items_current['offset'].' cannot be saved to "'.$this->inline_attachments.'" (not writable)');
|
|
unset($thisfile_ape_items_current['data']);
|
|
break;
|
|
}
|
|
}
|
|
// if we get this far, must be OK
|
|
if (is_string($this->inline_attachments)) {
|
|
$destination_filename = $this->inline_attachments.DIRECTORY_SEPARATOR.md5($info['filenamepath']).'_'.$thisfile_ape_items_current['data_offset'];
|
|
if (!file_exists($destination_filename) || getID3::is_writable($destination_filename)) {
|
|
file_put_contents($destination_filename, $thisfile_ape_items_current['data']);
|
|
} else {
|
|
$this->warning('attachment at '.$thisfile_ape_items_current['offset'].' cannot be saved to "'.$destination_filename.'" (not writable)');
|
|
}
|
|
$thisfile_ape_items_current['data_filename'] = $destination_filename;
|
|
unset($thisfile_ape_items_current['data']);
|
|
} else {
|
|
if (!isset($info['ape']['comments']['picture'])) {
|
|
$info['ape']['comments']['picture'] = array();
|
|
}
|
|
$comments_picture_data = array();
|
|
foreach (array('data', 'image_mime', 'image_width', 'image_height', 'imagetype', 'picturetype', 'description', 'datalength') as $picture_key) {
|
|
if (isset($thisfile_ape_items_current[$picture_key])) {
|
|
$comments_picture_data[$picture_key] = $thisfile_ape_items_current[$picture_key];
|
|
}
|
|
}
|
|
$info['ape']['comments']['picture'][] = $comments_picture_data;
|
|
unset($comments_picture_data);
|
|
}
|
|
} while (false);
|
|
break;
|
|
|
|
default:
|
|
if (is_array($thisfile_ape_items_current['data'])) {
|
|
foreach ($thisfile_ape_items_current['data'] as $comment) {
|
|
$thisfile_ape['comments'][strtolower($item_key)][] = $comment;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
}
|
|
if (empty($thisfile_replaygain)) {
|
|
unset($info['replay_gain']);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param string $APEheaderFooterData
|
|
*
|
|
* @return array|false
|
|
*/
|
|
public function parseAPEheaderFooter($APEheaderFooterData) {
|
|
// http://www.uni-jena.de/~pfk/mpp/sv8/apeheader.html
|
|
|
|
// shortcut
|
|
$headerfooterinfo = array();
|
|
$headerfooterinfo['raw'] = array();
|
|
$headerfooterinfo_raw = &$headerfooterinfo['raw'];
|
|
|
|
$headerfooterinfo_raw['footer_tag'] = substr($APEheaderFooterData, 0, 8);
|
|
if ($headerfooterinfo_raw['footer_tag'] != 'APETAGEX') {
|
|
return false;
|
|
}
|
|
$headerfooterinfo_raw['version'] = getid3_lib::LittleEndian2Int(substr($APEheaderFooterData, 8, 4));
|
|
$headerfooterinfo_raw['tagsize'] = getid3_lib::LittleEndian2Int(substr($APEheaderFooterData, 12, 4));
|
|
$headerfooterinfo_raw['tag_items'] = getid3_lib::LittleEndian2Int(substr($APEheaderFooterData, 16, 4));
|
|
$headerfooterinfo_raw['global_flags'] = getid3_lib::LittleEndian2Int(substr($APEheaderFooterData, 20, 4));
|
|
$headerfooterinfo_raw['reserved'] = substr($APEheaderFooterData, 24, 8);
|
|
|
|
$headerfooterinfo['tag_version'] = $headerfooterinfo_raw['version'] / 1000;
|
|
if ($headerfooterinfo['tag_version'] >= 2) {
|
|
$headerfooterinfo['flags'] = $this->parseAPEtagFlags($headerfooterinfo_raw['global_flags']);
|
|
}
|
|
return $headerfooterinfo;
|
|
}
|
|
|
|
/**
|
|
* @param int $rawflagint
|
|
*
|
|
* @return array
|
|
*/
|
|
public function parseAPEtagFlags($rawflagint) {
|
|
// "Note: APE Tags 1.0 do not use any of the APE Tag flags.
|
|
// All are set to zero on creation and ignored on reading."
|
|
// http://wiki.hydrogenaud.io/index.php?title=Ape_Tags_Flags
|
|
$flags = array();
|
|
$flags['header'] = (bool) ($rawflagint & 0x80000000);
|
|
$flags['footer'] = (bool) ($rawflagint & 0x40000000);
|
|
$flags['this_is_header'] = (bool) ($rawflagint & 0x20000000);
|
|
$flags['item_contents_raw'] = ($rawflagint & 0x00000006) >> 1;
|
|
$flags['read_only'] = (bool) ($rawflagint & 0x00000001);
|
|
|
|
$flags['item_contents'] = $this->APEcontentTypeFlagLookup($flags['item_contents_raw']);
|
|
|
|
return $flags;
|
|
}
|
|
|
|
/**
|
|
* @param int $contenttypeid
|
|
*
|
|
* @return string
|
|
*/
|
|
public function APEcontentTypeFlagLookup($contenttypeid) {
|
|
static $APEcontentTypeFlagLookup = array(
|
|
0 => 'utf-8',
|
|
1 => 'binary',
|
|
2 => 'external',
|
|
3 => 'reserved'
|
|
);
|
|
return (isset($APEcontentTypeFlagLookup[$contenttypeid]) ? $APEcontentTypeFlagLookup[$contenttypeid] : 'invalid');
|
|
}
|
|
|
|
/**
|
|
* @param string $itemkey
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function APEtagItemIsUTF8Lookup($itemkey) {
|
|
static $APEtagItemIsUTF8Lookup = array(
|
|
'title',
|
|
'subtitle',
|
|
'artist',
|
|
'album',
|
|
'debut album',
|
|
'publisher',
|
|
'conductor',
|
|
'track',
|
|
'composer',
|
|
'comment',
|
|
'copyright',
|
|
'publicationright',
|
|
'file',
|
|
'year',
|
|
'record date',
|
|
'record location',
|
|
'genre',
|
|
'media',
|
|
'related',
|
|
'isrc',
|
|
'abstract',
|
|
'language',
|
|
'bibliography'
|
|
);
|
|
return in_array(strtolower($itemkey), $APEtagItemIsUTF8Lookup);
|
|
}
|
|
|
|
}
|