Extension:Flashlets.php

<?

1. Flashlets Extension
2. - Allows ActionScript code to render in the page a SWF using the MTASC (http://www.mtasc.org) SWF compiler
3. - Version 1.00 (2007-03-30)
4. - See http://www.mediawiki.org/wiki/Extension:Flashlets for installation and usage details
5. - Licenced under LGPL (http://www.gnu.org/copyleft/lesser.html)
6. - Author: http://www.organicdesign.co.nz/nad

$wgFlashletsMagic = "swf"; # the tag name for embedding a SWF $wgFlashletsMTASC = "mtasc"; # Command used to launch the MTASC executable $wgFlashletsCP = "/usr/local/mtasc/std"; # Directory containing the MTASC class headers $wgFlashletsPath = "/wiki/swf"; # Writable directory to store files $wgFlashletsDirectory = "$IP/swf"; # Writable directory to store files $wgExtensionFunctions[] = 'wfSetupFlashlets';

class Flashlets {

var $version = '1.00, 2007-03-30'; var $expire = 100; # Number of minutes a generated SWF lives for without being accessed

# Constructor function Flashlets() { global $wgParser,$wgFlashletsMagic; $wgParser->setHook($wgFlashletsMagic,array($this,'tagHook')); }

# Convert the $magic tags to client-side javascript request code from its stored parameters function tagHook($actionscript,$argv,&$parser) { global $wgFlashletsMTASC,$wgFlashletsCP,$wgFlashletsDirectory,$wgFlashletsPath;

# convert args to command-line switches $width = isset($argv['width'])  ? intval($argv['width'])  : 300; $height = isset($argv['height'])  ? intval($argv['height']) : 200; $fps = isset($argv['fps'])  ? intval($argv['fps'])  : 25; $bgcolor = isset($argv['bgcolor']) ? $argv['bgcolor']  : '#ffffff';

# delete swf's older than cache-expiry $expiry = $now - $this->expire; if ($handle = opendir('.')) { while (false !== ($file = readdir($handle))) { if ($file != "." && $file != "..") { $stat = stat($file); #if ($stat[8] < $expire) unlink($file); } } } closedir($handle);

# create swf filename unique to the actionscript content and parameters $swf = md5($actionscript.$switches); $file = "$wgFlashletsDirectory/$swf";

# Compile the SWF if it doesn't already exist if (!file_exists("$file.swf")) {

# Write the actionscript to a file for MTASC to compile from if ($handle = fopen("$file.as", 'w+')) { fwrite($handle,$actionscript); fclose($handle); $sh = "$wgFlashletsMTASC -cp $wgFlashletsCP -swf /usr/local/mtasc/test.swf -out $file.swf -main $switches -header $width:$height:$fps $file.as 2>&1"; $html = shell_exec($sh); unlink("$file.as"); } else $html = "Could not open '$file.as' for writing!";

}

# If the SWF exists, return the HTMLcode to request and embed the SWF otherwise return error information if (file_exists("$file.swf")) {

$html = "\n

\n"; $html .= "

\n"; $html .= "\n<object classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=$version,0,0,0\" width=\"$width\" height=\"$height\" id=\"$swf\" type=\"application/x-shockwave-flash\" data=\"$file.swf\"> <param name=\"flashvars\" value=\"$flashvars\"> <param name=\"movie\" value=\"$file.swf\"> <param name=\"quality\" value=\"$quality\"> <param name=\"bgcolor\" value=\"$background\"> <embed src=\"$file.swf\" quality=\"$quality\" bgcolor=\"$background\" width=\"$width\" height=\"$height\" flashvars=\"$flashvars\" name=\"$swf\" type=\"application/x-shockwave-flash\" pluginspage=\"http://www.macromedia.com/go/getflashplayer\" /> </object>\n"; if ($caption) $html .= "

<a href='$wgFlashletsPath/$swf.swf'>$caption</a>

";

}

else $html = "\n
Could not compile SWF!

$html

\n";

return $html; }

}

1. Called from $wgExtensionFunctions array when initialising extensions

function wfSetupFlashlets() { global $wgFlashlets; $wgFlashlets = new Flashlets(); }

?>