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<?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);

                }

        }

?>