1 files changed, 115 insertions, 0 deletions
diff --git a/includes/getid3/module.audio.mod.php b/includes/getid3/module.audio.mod.php
new file mode 100644
index 0000000..bf8be33
--- /dev/null
+++ b/includes/getid3/module.audio.mod.php
@@ -0,0 +1,115 @@
+<?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.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;
+	}
+
+}