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// // available at https://github.com/JamesHeinrich/getID3 // // or https://www.getid3.org // // or http://getid3.sourceforge.net // // see readme.txt for more details // ///////////////////////////////////////////////////////////////// // // // module.audio.mod.php // // module for analyzing MOD Audio files // // dependencies: NONE // // /// ///////////////////////////////////////////////////////////////// if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers exit; } class getid3_mod extends getid3_handler { /** * @return bool */ 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(); } $this->error('This is not a known type of MOD file'); return false; } /** * @return bool */ 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)) { $this->error('This is not a known type of MOD file'); return false; } $info['fileformat'] = 'mod'; $this->error('MOD parsing not enabled in this version of getID3() ['.$this->getid3->version().']'); return false; } /** * @return bool */ public function getXMheaderFilepointer() { $info = &$this->getid3->info; $this->fseek($info['avdataoffset']); $FormatID = $this->fread(15); if (!preg_match('#^Extended Module$#', $FormatID)) { $this->error('This is not a known type of XM-MOD file'); return false; } $info['fileformat'] = 'xm'; $this->error('XM-MOD parsing not enabled in this version of getID3() ['.$this->getid3->version().']'); return false; } /** * @return bool */ public function getS3MheaderFilepointer() { $info = &$this->getid3->info; $this->fseek($info['avdataoffset'] + 44); $FormatID = $this->fread(4); if (!preg_match('#^SCRM$#', $FormatID)) { $this->error('This is not a ScreamTracker MOD file'); return false; } $info['fileformat'] = 's3m'; $this->error('ScreamTracker parsing not enabled in this version of getID3() ['.$this->getid3->version().']'); return false; } /** * @return bool */ public function getITheaderFilepointer() { $info = &$this->getid3->info; $this->fseek($info['avdataoffset']); $FormatID = $this->fread(4); if (!preg_match('#^IMPM$#', $FormatID)) { $this->error('This is not an ImpulseTracker MOD file'); return false; } $info['fileformat'] = 'it'; $this->error('ImpulseTracker parsing not enabled in this version of getID3() ['.$this->getid3->version().']'); return false; } }