Extension:Cindy

$wgFileExtensions[] = 'cdy';
$wgVerifyMimeType = false;

require_once("$IP/extensions/Cindy.php");

$wgFileExtensions[] = 'jar';

<?php
/**
 * Cindy extension
 *
 * @author Rudolf Grossmann
 * @version 1.0d
 */
 
$cdy_version = "1.0d";
 
// This MediaWiki extension is based on the Java Applet extension by Phil Trasatti
// see: http://www.mediawiki.org/wiki/Extension:Java_Applet
 
//Avoid unstubbing $wgParser too early on modern (1.12+) MW versions, as per r35980
if ( defined( 'MW_SUPPORTS_PARSERFIRSTCALLINIT' ) ) {
        $wgHooks['ParserFirstCallInit'][] = 'cdy_AppletSetup';
} else {
        $wgExtensionFunctions[] = 'cdy_AppletSetup';
}
 
$wgExtensionCredits['parserhook'][] = array(
        'name'         => 'Cindy',
        'author'       => 'Rudolf Grossmann',
        'url'          => 'http://www.mediawiki.org/wiki/Extension:Cindy',
        'description'  => 'Add [http://cinderella.de Cinderella] applets to MediaWiki pages.',
        'version'      => $cdy_version
);
 
function cdy_AppletSetup() {
        global $wgParser;
        $wgParser->setHook( 'cdy_applet', 'get_cdyAppletOutput' );
        return true;
}
 
function get_cdyAppletOutput( $input, $args, $parser ) {
        global $wgServer; // URL of the WIKI's server
        global $cdy_version; // see line 9 of this file
 
        $error_message = "no error"; //will be overwritten, if error occurs
        $CRLF = "\r\n";
        $quot='"';
 
        $parameter_array = array('anglemodulo', 'axes', 'axes.show', 'backgroundimage', 'cinderella.antialias');
        $parameter_array = array_merge($parameter_array, array('console', 'controls', 'darkenDependent', 'deltafactor', 'doublebuffer'));
        $parameter_array = array_merge($parameter_array, array('euclideanport.scale', 'exercise', 'imagealpha', 'imagescalemode', 'KernelID'));
        $parameter_array = array_merge($parameter_array, array('mesh', 'mesh.density', 'mesh.rectangular', 'mesh.triangular', 'originx'));
        $parameter_array = array_merge($parameter_array, array('originy', 'polar', 'precision.angle', 'precision.angle.int', 'precision.measure'));
        $parameter_array = array_merge($parameter_array, array('precision.measure.int', 'pref0', 'pref1', 'pref2', 'printscale'));
        $parameter_array = array_merge($parameter_array, array('printscale.int', 'scale', 'show.adjacencymatrix', 'snap', 'viewport'));
 
        $noJavaText = 'Please <a href="http://java.sun.com/getjava">install Java 1.4.2</a> (or later) to use this page.';
 
        // Look for required parameters
        if( !isset( $args['width'] )   ||
            !isset( $args['height'] )  ||
            !isset( $args['filename'] ) )
            $error_message = "Missing parameter (width or height or filename).";
 
        // Retrieve URL of uploaded JAR file.
        $appletBinary = "cindyrun.jar" ;
        $appletBinary = ucfirst($appletBinary); // set first letter of jar-file upper case
        $file = Image::newFromName( $appletBinary ) ; // Get the Image object from the file name
        $fileURL = $file->getURL(); // Get the mediawiki path of the file
        $fileURL = str_replace( $appletBinary, "", $fileURL ); // Strip the filename from the path
        $codeBase = $wgServer . $fileURL; // Attach wiki site path
 
        $output = "<!-- Cindy MediaWiki extension " . $cdy_version . " by R. Grossmann -->" . $CRLF;
        $output = $output . '<applet code="de.cinderella.CindyApplet"'; // Add code value to tag
        if( isset( $args['name'] )){
           $output = $output . " name=" . $quot . htmlspecialchars(strip_tags($args['name'])) . $quot; // Add name value to tag
        }
        $output = $output . " codebase=" . $quot . $codeBase . $quot; // Add codebase value to tag
        $output = $output . " width=" . $quot . htmlspecialchars(strip_tags($args['width'])) . $quot; // Add width value to tag
        $output = $output . " height=" . $quot . htmlspecialchars(strip_tags($args['height'])) . $quot; // Add height value to tag
        $output = $output . " archive=" . $quot. $appletBinary . $quot. " >"; // Add archive value to tag
 
        // retrieve URL of *.cdy file
        $cdyBinary = htmlspecialchars(strip_tags($args['filename']));
        $cdyFile = Image::newFromName($cdyBinary);
        if (!($cdyFile->exists()))
        {
          $error_message = "File " . $cdyBinary . " not found.";
        }
        else
        {
          $cdyURL = $cdyFile->getURL();
          // if URL doesn't start with slash, add starting slash.
          if (substr($cdyURL, 0, 1) != '/'){
                  $cdyURL = '/' . $cdyURL;
          }
          $cdyURL = $wgServer . $cdyURL;
        }
 
        // Add URL of *.cdy file to tag
        $output = $output . '<param name="filename" value="' . $cdyURL . '">' . $CRLF;
 
        // Add code for parameters, if exist!.
        foreach($parameter_array as $parameter) {
          $value = $args[strtolower($parameter)]; //strtolower necessary for $args [   ]
          $value = htmlspecialchars(strip_tags($value));
          if(strlen($value) > 0)
             $output = $output . '<param name="' . $parameter .'" value="' . $value . '">' . $CRLF;
        }
 
        $output = $output . $noJavaText . $CRLF; // Message if Java is not installed
        $output = $output . "</applet>" . $CRLF; // The closing applet tag
 
 
        // if error occured, discard applet and output error message
        if ($error_message != "no error") {
          $output = "<p>Error in MediaWiki extension (Cindy.php): <em>" . $error_message. "</em></p>" . $CRLF;
        }
 
        // Send the output to the browser
        return $output;
} // missing php end tag to avoid troubles.