Quicktime.php

<?php

/*
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USAw
 *
 * Parts of the program use the file 'Image.php' and 'Flash.php' from the MediaWiki project. 
 * The respective source can be acquired from http://svn.wikimedia.org/viewvc/mediawiki/trunk/.
 *
 * @author <grinfeder@miami.edu>
 *
 *
NOTE:
There are some bugs in that code throwing PHP warnings:
To fix these add
var $QTvars;
var $gotQTvars;
after the class definition and replace the 4 occurences of $gotQTvars with $this->gotQTvars


 */

if ( !defined( 'MEDIAWIKI' ) ) {
	die( "This file is part of the QuickTime extension. It is not a valid entry point.\n" );
}

$wgExtensionFunctions[] = "wfQTExtension";


/*
 * The QT class generates code in order to implement a QT object.
 */
class QT {
	var $QTvars;
	var $gotQTvars;
	/* Constructor */

	function QT( $input ) {
		QT::parseInput( $input ); // Parse the input
		QT::genCode(); // Generate the final code
	}

	/* Parser */

	function parseInput( $input ) {
		for ( $pos = 0; $pos < strlen( $input ); $pos++ ) { // go through all arguments
			if ( $input { $pos } == '=' ) { // separator between command
				// ignore '=' if the attribute is QTvars
				// this will enable to pass query string to QT files
				if ( $this->gotQTvars ) {
					$this->tmp .= $input { $pos };
					continue;
				}
				$this->instr = $this->tmp;
				$this->tmp = '';
				// set the flag for QTvars
				if ( $this->instr == 'QTvars' )
					$this->gotQTvars = 1;
			}
			else if ( $input { $pos } == '|' ) { // separator between arguments
				// reset the flags for other attributes
				if ( $this->gotQTvars )
					$this->gotQTvars = 0;
				QT::setValue();
				$this->tmp = '';
			} else {
				$this->tmp .= $input { $pos };
			}
		}
		if ( $this->tmp != '' ) {
			QT::setValue(); // Deal with the rest of the input string
		}
	}


	/* Coordinate commands with values */
	function setValue() {
		$this->value = $this->tmp;
		$this->{ $this->instr } = $this->value;
		if ( $this->instr == 'autoplay' || // Whitelist of QT commands. Anything else but QT commands is ignored.
			$this->instr == 'controller' )
		{
			/* Create code for <embed> and <object> */
			if ( $this->instr != 'id' ) {
				$this->codeEmbed .= ' ' . $this->instr . '="' . $this->value . '"';
			}
			if ( $this->instr != 'name' ) {
				$this->codeObject .= '<param name="' . $this->instr . '" value="' . $this->value . '">';
			}
		}
	}

	/* Generate big, final chunk of code */
	function genCode() {
		// Possibly malicious settings:
		$codebase = 'http://www.apple.com/qtactivex/qtplugin.cab'; // Code Base /No need to change
		$classID = 'clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B'; // ClassID / No need to change
		// Default version Setting:
		$this->version = '7,0,0,0'; // Version settings for <object>
		$this->url = $this->getTitle( $this->file ); // QT::imageUrl( $this->file, $this->fromSharedDirectory ); // get Wiki internal url
		// if QTvars is set append to the url
		if ( $this->QTvars ) {
			$this->url .= $this->QTvars;
		}

		/* Final Code */
		$this->code = '<OBJECT CLASSID="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" 
			WIDTH="160"HEIGHT="144" CODEBASE="http://www.apple.com/qtactivex/qtplugin.cab">
			<PARAM name="SRC" VALUE="' . $this->url . '">' . $this->codeObject .
				'<EMBED SRC="' . $this->url . '" WIDTH="' . $this->width . '" HEIGHT="' . ($this->height+16) . 
				'" ' . $this->codeEmbed . ' PLUGINSPAGE="http://www.apple.com/quicktime/download/"></EMBED></OBJECT> ';
		return $this->code;
	}

	function getTitle( $file ) {
		// independant from namespace
		$title = Title::makeTitleSafe( "Image", $file );
		$img = new Image( $title );
		$path = $img->getViewURL( false );
		return $path;
	}

}

function wfQTExtension() {
	global $wgParser;
	$wgParser->setHook( "QT", "renderQT" );
}

function renderQT( $input ) {
	global $code;

	// Constructor
	$QTFile = new QT( $input );
	$code = $QTFile->code;

	return $code; // send the final code to the wiki
}