includes/clientside/tinymce/tiny_mce_gzip.php
author Dan
Wed, 07 May 2008 14:05:31 -0400
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parent 545 e4c8e706f167
child 685 17ebe24cdf85
permissions -rw-r--r--
Added ETag on TinyMCE gzip; changed ETag format for standard pages so as to include user and login info to control caching when logged in or out
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<?php
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/*
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 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
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 * Version 1.1.4 (Caoineag alpha 4)
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 * Copyright (C) 2006-2008 Dan Fuhry
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 * tiny_mce_gzip.php - TinyMCE gzip and caching script, stock from MoxieCode with one modification
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 *
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 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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 */
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/**
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 * $Id: tiny_mce_gzip.php 315 2007-10-25 14:03:43Z spocke $
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 *
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 * @author Moxiecode
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 * @copyright Copyright © 2005-2006, Moxiecode Systems AB, All rights reserved.
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 *
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 * This file compresses the TinyMCE JavaScript using GZip and
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 * enables the browser to do two requests instead of one for each .js file.
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 * Notice: This script defaults the button_tile_map option to true for extra performance.
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 */
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	// Set the error reporting to minimal.
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	@error_reporting(E_ERROR | E_WARNING | E_PARSE);
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  // 5/5/2008 - load Enano, but only get the root directory
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  define('ENANO_COMMON_ROOTONLY', 1);
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  require('../../common.php');
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	// Get input
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	$plugins = explode(',', getParam("plugins", ""));
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	$languages = explode(',', getParam("languages", ""));
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	$themes = explode(',', getParam("themes", ""));
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	$diskCache = getParam("diskcache", "") == "true";
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	$isJS = getParam("js", "") == "true";
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	$compress = getParam("compress", "true") == "true";
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	$core = getParam("core", "true") == "true";
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	$suffix = getParam("suffix", "_src") == "_src" ? "_src" : "";
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  // 5/5/2008 - set cache path to Enano's usual directory
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	$cachePath = realpath(ENANO_ROOT . "/cache"); // Cache path, this is where the .gz files will be stored
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	$expiresOffset = 3600 * 24 * 10; // Cache for 10 days in browser cache
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	$content = "";
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	$encodings = array();
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	$supportsGzip = false;
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	$enc = "";
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	$cacheKey = "";
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	// Custom extra javascripts to pack
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	$custom = array(/*
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		"some custom .js file",
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		"some custom .js file"
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	*/);
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	// Headers
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	header("Content-type: text/javascript");
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	header("Vary: Accept-Encoding");  // Handle proxies
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	header("Expires: " . gmdate("D, d M Y H:i:s", time() + $expiresOffset) . " GMT");
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	// Is called directly then auto init with default settings
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	if (!$isJS) {
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		echo getFileContents("tiny_mce_gzip.js");
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		echo "tinyMCE_GZ.init({});";
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		die();
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	}
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	// Setup cache info
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	if ($diskCache) {
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		if (!$cachePath)
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			die("alert('Real path failed.');");
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		$cacheKey = getParam("plugins", "") . getParam("languages", "") . getParam("themes", "") . $suffix;
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		foreach ($custom as $file)
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			$cacheKey .= $file;
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		$cacheKey = md5($cacheKey);
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		if ($compress)
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			$cacheFile = $cachePath . "/tiny_mce_" . $cacheKey . ".gz";
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		else
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			$cacheFile = $cachePath . "/tiny_mce_" . $cacheKey . ".js";
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	}
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	// Check if it supports gzip
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	if (isset($_SERVER['HTTP_ACCEPT_ENCODING']))
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		$encodings = explode(',', strtolower(preg_replace("/\s+/", "", $_SERVER['HTTP_ACCEPT_ENCODING'])));
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	if ((in_array('gzip', $encodings) || in_array('x-gzip', $encodings) || isset($_SERVER['---------------'])) && function_exists('ob_gzhandler') && !ini_get('zlib.output_compression')) {
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		$enc = in_array('x-gzip', $encodings) ? "x-gzip" : "gzip";
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		$supportsGzip = true;
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	}
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  // Send an ETag (Enano modification 5/5/2008)
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  if ( isset($cacheKey) )
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  {
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    $etag =& $cacheKey;
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    header("ETag: \"$etag\"");
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    if ( isset($_SERVER['HTTP_IF_NONE_MATCH']) )
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    {
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      if ( "\"$etag\"" == $_SERVER['HTTP_IF_NONE_MATCH'] )
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      {
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        header('HTTP/1.1 304 Not Modified');
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        exit();
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      }
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    }
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  }
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	// Use cached file disk cache
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	if ($diskCache && $supportsGzip && file_exists($cacheFile)) {
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		if ($compress)
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			header("Content-Encoding: " . $enc);
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		echo getFileContents($cacheFile);
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		die();
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	}
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	// Add core
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	if ($core == "true") {
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		$content .= getFileContents("tiny_mce" . $suffix . ".js");
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		// Patch loading functions
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		$content .= "tinyMCE_GZ.start();";
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	}
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	// Add core languages
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	foreach ($languages as $lang)
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		$content .= getFileContents("langs/" . $lang . ".js");
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	// Add themes
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	foreach ($themes as $theme) {
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		$content .= getFileContents( "themes/" . $theme . "/editor_template" . $suffix . ".js");
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		foreach ($languages as $lang)
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			$content .= getFileContents("themes/" . $theme . "/langs/" . $lang . ".js");
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	}
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	// Add plugins
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	foreach ($plugins as $plugin) {
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		$content .= getFileContents("plugins/" . $plugin . "/editor_plugin" . $suffix . ".js");
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		foreach ($languages as $lang)
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			$content .= getFileContents("plugins/" . $plugin . "/langs/" . $lang . ".js");
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	}
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	// Add custom files
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	foreach ($custom as $file)
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		$content .= getFileContents($file);
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	// Restore loading functions
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	if ($core == "true")
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		$content .= "tinyMCE_GZ.end();";
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544
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	// Generate GZIP'd content
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	if ($supportsGzip) {
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		if ($compress) {
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			header("Content-Encoding: " . $enc);
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			$cacheData = gzencode($content, 9, FORCE_GZIP);
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		} else
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			$cacheData = $content;
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		// Write gz file
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		if ($diskCache && $cacheKey != "")
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			putFileContents($cacheFile, $cacheData);
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		// Stream to client
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		echo $cacheData;
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	} else {
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		// Stream uncompressed content
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		echo $content;
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	}
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	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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	function getParam($name, $def = false) {
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		if (!isset($_GET[$name]))
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			return $def;
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		return preg_replace("/[^0-9a-z\-_,]+/i", "", $_GET[$name]); // Remove anything but 0-9,a-z,-_
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	}
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	function getFileContents($path) {
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		$path = realpath($path);
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		if (!$path || !@is_file($path))
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			return "";
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		if (function_exists("file_get_contents"))
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			return @file_get_contents($path);
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		$content = "";
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		$fp = @fopen($path, "r");
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		if (!$fp)
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			return "";
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		while (!feof($fp))
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			$content .= fgets($fp);
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		fclose($fp);
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		return $content;
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	}
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	function putFileContents($path, $content) {
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		if (function_exists("file_put_contents"))
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			return @file_put_contents($path, $content);
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		$fp = @fopen($path, "wb");
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		if ($fp) {
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			fwrite($fp, $content);
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			fclose($fp);
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		}
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	}
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?>