<?php

/**

 * $Id: tiny_mce_gzip.php 315 2007-10-25 14:03:43Z spocke $

 *

 * @author Moxiecode

 * @copyright Copyright © 2005-2006, Moxiecode Systems AB, All rights reserved.

 *

 * This file compresses the TinyMCE JavaScript using GZip and

 * enables the browser to do two requests instead of one for each .js file.

 * Notice: This script defaults the button_tile_map option to true for extra performance.

 */



	// Set the error reporting to minimal.

	@error_reporting(E_ERROR | E_WARNING | E_PARSE);



	// Get input

	$plugins = explode(',', getParam("plugins", ""));

	$languages = explode(',', getParam("languages", ""));

	$themes = explode(',', getParam("themes", ""));

	$diskCache = getParam("diskcache", "") == "true";

	$isJS = getParam("js", "") == "true";

	$compress = getParam("compress", "true") == "true";

	$core = getParam("core", "true") == "true";

	$suffix = getParam("suffix", "_src") == "_src" ? "_src" : "";

	$cachePath = realpath("."); // Cache path, this is where the .gz files will be stored

	$expiresOffset = 3600 * 24 * 10; // Cache for 10 days in browser cache

	$content = "";

	$encodings = array();

	$supportsGzip = false;

	$enc = "";

	$cacheKey = "";



	// Custom extra javascripts to pack

	$custom = array(/*

		"some custom .js file",

		"some custom .js file"

	*/);



	// Headers

	header("Content-type: text/javascript");

	header("Vary: Accept-Encoding");  // Handle proxies

	header("Expires: " . gmdate("D, d M Y H:i:s", time() + $expiresOffset) . " GMT");



	// Is called directly then auto init with default settings

	if (!$isJS) {

		echo getFileContents("tiny_mce_gzip.js");

		echo "tinyMCE_GZ.init({});";

		die();

	}



	// Setup cache info

	if ($diskCache) {

		if (!$cachePath)

			die("alert('Real path failed.');");



		$cacheKey = getParam("plugins", "") . getParam("languages", "") . getParam("themes", "") . $suffix;



		foreach ($custom as $file)

			$cacheKey .= $file;



		$cacheKey = md5($cacheKey);



		if ($compress)

			$cacheFile = $cachePath . "/tiny_mce_" . $cacheKey . ".gz";

		else

			$cacheFile = $cachePath . "/tiny_mce_" . $cacheKey . ".js";

	}



	// Check if it supports gzip

	if (isset($_SERVER['HTTP_ACCEPT_ENCODING']))

		$encodings = explode(',', strtolower(preg_replace("/\s+/", "", $_SERVER['HTTP_ACCEPT_ENCODING'])));



	if ((in_array('gzip', $encodings) || in_array('x-gzip', $encodings) || isset($_SERVER['---------------'])) && function_exists('ob_gzhandler') && !ini_get('zlib.output_compression')) {

		$enc = in_array('x-gzip', $encodings) ? "x-gzip" : "gzip";

		$supportsGzip = true;

	}



	// Use cached file disk cache

	if ($diskCache && $supportsGzip && file_exists($cacheFile)) {

		if ($compress)

			header("Content-Encoding: " . $enc);



		echo getFileContents($cacheFile);

		die();

	}



	// Add core

	if ($core == "true") {

		$content .= getFileContents("tiny_mce" . $suffix . ".js");



		// Patch loading functions

		$content .= "tinyMCE_GZ.start();";

	}



	// Add core languages

	foreach ($languages as $lang)

		$content .= getFileContents("langs/" . $lang . ".js");



	// Add themes

	foreach ($themes as $theme) {

		$content .= getFileContents( "themes/" . $theme . "/editor_template" . $suffix . ".js");



		foreach ($languages as $lang)

			$content .= getFileContents("themes/" . $theme . "/langs/" . $lang . ".js");

	}



	// Add plugins

	foreach ($plugins as $plugin) {

		$content .= getFileContents("plugins/" . $plugin . "/editor_plugin" . $suffix . ".js");



		foreach ($languages as $lang)

			$content .= getFileContents("plugins/" . $plugin . "/langs/" . $lang . ".js");

	}



	// Add custom files

	foreach ($custom as $file)

		$content .= getFileContents($file);



	// Restore loading functions

	if ($core == "true")

		$content .= "tinyMCE_GZ.end();";



	// Generate GZIP'd content

	if ($supportsGzip) {

		if ($compress) {

			header("Content-Encoding: " . $enc);

			$cacheData = gzencode($content, 9, FORCE_GZIP);

		} else

			$cacheData = $content;



		// Write gz file

		if ($diskCache && $cacheKey != "")

			putFileContents($cacheFile, $cacheData);



		// Stream to client

		echo $cacheData;

	} else {

		// Stream uncompressed content

		echo $content;

	}



	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */



	function getParam($name, $def = false) {

		if (!isset($_GET[$name]))

			return $def;



		return preg_replace("/[^0-9a-z\-_,]+/i", "", $_GET[$name]); // Remove anything but 0-9,a-z,-_

	}



	function getFileContents($path) {

		$path = realpath($path);



		if (!$path || !@is_file($path))

			return "";



		if (function_exists("file_get_contents"))

			return @file_get_contents($path);



		$content = "";

		$fp = @fopen($path, "r");

		if (!$fp)

			return "";



		while (!feof($fp))

			$content .= fgets($fp);



		fclose($fp);



		return $content;

	}



	function putFileContents($path, $content) {

		if (function_exists("file_put_contents"))

			return @file_put_contents($path, $content);



		$fp = @fopen($path, "wb");

		if ($fp) {

			fwrite($fp, $content);

			fclose($fp);

		}

	}

?>