/usr/share/php/getid3/module.audio.mod.php is in php-getid3 1.9.11+dfsg-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org> //
// available at http://getid3.sourceforge.net //
// or http://www.getid3.org //
// also https://github.com/JamesHeinrich/getID3 //
/////////////////////////////////////////////////////////////////
// See readme.txt for more details //
/////////////////////////////////////////////////////////////////
// //
// module.audio.mod.php //
// module for analyzing MOD Audio files //
// dependencies: NONE //
// ///
/////////////////////////////////////////////////////////////////
class getid3_mod extends getid3_handler
{
public function Analyze() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset']);
$fileheader = $this->fread(1088);
if (preg_match('#^IMPM#', $fileheader)) {
return $this->getITheaderFilepointer();
} elseif (preg_match('#^Extended Module#', $fileheader)) {
return $this->getXMheaderFilepointer();
} elseif (preg_match('#^.{44}SCRM#', $fileheader)) {
return $this->getS3MheaderFilepointer();
} elseif (preg_match('#^.{1080}(M\\.K\\.|M!K!|FLT4|FLT8|[5-9]CHN|[1-3][0-9]CH)#', $fileheader)) {
return $this->getMODheaderFilepointer();
}
$info['error'][] = 'This is not a known type of MOD file';
return false;
}
public function getMODheaderFilepointer() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset'] + 1080);
$FormatID = $this->fread(4);
if (!preg_match('#^(M.K.|[5-9]CHN|[1-3][0-9]CH)$#', $FormatID)) {
$info['error'][] = 'This is not a known type of MOD file';
return false;
}
$info['fileformat'] = 'mod';
$info['error'][] = 'MOD parsing not enabled in this version of getID3() ['.$this->getid3->version().']';
return false;
}
public function getXMheaderFilepointer() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset']);
$FormatID = $this->fread(15);
if (!preg_match('#^Extended Module$#', $FormatID)) {
$info['error'][] = 'This is not a known type of XM-MOD file';
return false;
}
$info['fileformat'] = 'xm';
$info['error'][] = 'XM-MOD parsing not enabled in this version of getID3() ['.$this->getid3->version().']';
return false;
}
public function getS3MheaderFilepointer() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset'] + 44);
$FormatID = $this->fread(4);
if (!preg_match('#^SCRM$#', $FormatID)) {
$info['error'][] = 'This is not a ScreamTracker MOD file';
return false;
}
$info['fileformat'] = 's3m';
$info['error'][] = 'ScreamTracker parsing not enabled in this version of getID3() ['.$this->getid3->version().']';
return false;
}
public function getITheaderFilepointer() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset']);
$FormatID = $this->fread(4);
if (!preg_match('#^IMPM$#', $FormatID)) {
$info['error'][] = 'This is not an ImpulseTracker MOD file';
return false;
}
$info['fileformat'] = 'it';
$info['error'][] = 'ImpulseTracker parsing not enabled in this version of getID3() ['.$this->getid3->version().']';
return false;
}
}
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