Merge pull request #2334 from fabrixxm/feature_autoloader

Autoloader

boot.php

@@ -17,6 +17,8 @@
  * easily as email does today.
  */
 
+require_once('include/autoloader.php');
+ 
 require_once('include/config.php');
 require_once('include/network.php');
 require_once('include/plugin.php');

doc/Home.md

@@ -47,8 +47,10 @@ Friendica Documentation and Resources
 * [Theme Development](help/themes)
 * [Smarty 3 Templates](help/smarty3-templates)
 * [Database schema documantation](help/database)
+* [Class Autoloading](help/autoloader)
 * [Code - Reference(Doxygen generated - sets cookies)](doc/html/)
 
+
 **External Resources**
 
 * [Main Website](http://friendica.com)

doc/autoloader.md

@@ -0,0 +1,209 @@
+Autoloader
+==========
+
+* [Home](help)
+
+There is some initial support to class autoloading in Friendica core.
+
+The autoloader code is in `include/autoloader.php`.
+It's derived from composer autoloader code.
+
+Namespaces and Classes are mapped to folders and files in `library/`,
+and the map must be updated by hand, because we don't use composer yet.
+The mapping is defined by files in `include/autoloader/` folder.
+
+Currently, only HTMLPurifier library is loaded using autoloader.
+
+
+## A quick introdution to class autoloading
+
+The autoloader it's a way for php to automagically include the file that define a class when the class is first used, without the need to use "require_once" every time.
+
+Once is setup you don't have to use it in any way. You need a class? you use the class.
+
+At his basic is a function passed to the "spl_autoload_register()" function, which receive as argument the class name the script want and is it job to include the correct php file where that class is defined.
+The best source for documentation is [php site](http://php.net/manual/en/language.oop5.autoload.php).
+
+One example, based on fictional friendica code.
+
+Let's say you have a php file in "include/" that define a very useful class:
+
+```
+    file: include/ItemsManager.php
+    <?php
+    namespace \Friendica;
+    
+    class ItemsManager {
+       public function getAll() { ... }
+       public function getByID($id) { ... }
+    }
+```
+
+The class "ItemsManager" has been declared in "Friendica" namespace.
+Namespaces are useful to keep things separated and avoid names clash (could be that a library you want to use defines a class named "ItemsManager", but as long as is in another namespace, you don't have any problem)
+
+If we were using composer, we had configured it with path where to find the classes of "Friendica" namespace, and then the composer script will generate the autoloader machinery for us.
+As we don't use composer, we need check that the autoloader knows the Friendica namespace.
+So in "include/autoloader/autoload_psr4.php" there should be something like
+
+```
+    $vendorDir = dirname(dirname(dirname(__FILE__)))."/library";
+    $baseDir = dirname($vendorDir);
+    return array(
+       "Friendica" => array($baseDir."/include");
+    );
+```
+
+
+That tells the autoloader code to look for files that defines classes in "Friendica" namespace under "include/" folder. (And btw, that's why the file has the same name as the class it defines.)
+
+*note*: The structure of files in "include/autoloader/" has been copied from the code generated by composer, to ease the work of enable autoloader for external libraries under "library/"
+
+Let's say now that you need to load some items in a view, maybe in a fictional "mod/network.php".
+Somewere at the start of the scripts, the autoloader was initialized. In Friendica is done at the top of "boot.php", with "require_once('include/autoloader.php');".
+
+The code will be something like:
+
+```
+    file: mod/network.php
+    <?php
+    
+    function network_content(&$a) {
+       $itemsmanager = new \Friendica\ItemsManager();
+       $items = $itemsmanager->getAll();
+    
+       // pass $items to template
+       // return result
+    }
+```
+
+That's a quite simple example, but look: no "require()"!
+You need to use a class, you use the class and you don't need to do anything more.
+
+Going further: now we have a bunch of "*Manager" classes that cause some code duplication, let's define a BaseManager class, where to move all code in common between all managers:
+
+```
+    file: include/BaseManager.php
+    <?php
+    namespace \Friendica;
+    
+    class BaseManager {
+      public function thatFunctionEveryManagerUses() { ... }
+    }
+```
+
+and then let's change the ItemsManager class to use this code
+
+```
+    file: include/ItemsManager.php
+    <?php
+    namespace \Friendica;
+    
+    class ItemsManager extends BaseManager {
+       public function getAll() { ... }
+       public function getByID($id) { ... }
+    }
+```
+
+The autoloader don't mind what you need the class for. You need a class, you get the class.
+It works with the "BaseManager" example here, it works when we need to call static methods on a class:
+
+```
+    file: include/dfrn.php
+    <?php    
+    namespace \Friendica;
+    
+    class dfrn {
+      public static function  mail($item, $owner) { ... }
+    }
+```
+
+```
+    file: mod/mail.php
+    <?php
+    
+    mail_post($a){
+     ...
+     \Friendica\dfrn::mail($item, $owner);
+     ...
+    }
+```
+
+If your code is in same namespace as the class you need, you don't need to prepend it:
+
+```
+    file: include/delivery.php
+    <?php
+    
+    namespace \Friendica;
+    
+    // this is the same content of current include/delivery.php, 
+    // but has been declared to be in "Friendica" namespace
+    
+    [...]
+    switch($contact['network']) {
+    
+        case NETWORK_DFRN:
+            if ($mail) {
+                $item['body'] = ...
+                $atom = dfrn::mail($item, $owner);
+            } elseif ($fsuggest) {
+                $atom = dfrn::fsuggest($item, $owner);
+                q("DELETE FROM `fsuggest` WHERE `id` = %d LIMIT 1", intval($item['id']));
+            } elseif ($relocate)
+                $atom = dfrn::relocate($owner, $uid);
+    [...]
+```
+
+This is real "include/delivery.php" unchanged, but as the code is declared to be in "Friendica" namespace, you don't need to write it when you need to use the "dfrn" class.
+But if you want to use classes from another library, you need to use the full namespace, e.g.
+
+```
+    <?php
+    namespace \Frienidca;
+    
+    class Diaspora {
+      public function md2bbcode() {
+        $html = \Michelf\MarkdownExtra::defaultTransform($text); 
+      }
+    }
+```
+
+if you use that class in many places of the code and you don't want to write the full path to the class everytime, you can use the "use" php keyword
+
+```
+    <?php
+    namespace \Frienidca;
+    
+    use \Michelf\MarkdownExtra;
+    
+    class Diaspora {
+      public function md2bbcode() {
+        $html = MarkdownExtra::defaultTransform($text); 
+      }
+    }
+```
+
+Note that namespaces are like paths in filesystem, separated by "\", with the first "\" being the global scope.
+You can go more deep if you want to, like:
+
+```
+    <?php
+    namespace \Friendica\Network;
+    
+    class DFRN {
+    }
+```
+
+or
+
+```
+    <?php
+    namespace \Friendica\DBA;
+    
+    class MySQL {
+    }
+```
+
+So you can think of namespaces as folders in a unix filesystem, with global scope as the root ("\").
+

include/api.php

@@ -814,8 +814,6 @@
 
 		if((strpos($txt,'<') !== false) || (strpos($txt,'>') !== false)) {
 
-			require_once('library/HTMLPurifier.auto.php');
-
 			$txt = html2bb_video($txt);
 			$config = HTMLPurifier_Config::createDefault();
 			$config->set('Cache.DefinitionImpl', null);
@@ -855,9 +853,6 @@
 		if(requestdata('htmlstatus')) {
 			$txt = requestdata('htmlstatus');
 			if((strpos($txt,'<') !== false) || (strpos($txt,'>') !== false)) {
-
-				require_once('library/HTMLPurifier.auto.php');
-
 				$txt = html2bb_video($txt);
 
 				$config = HTMLPurifier_Config::createDefault();

include/autoloader.php

@@ -0,0 +1,69 @@
+<?php
+/**
+ * @file include/autoloader.php
+ */
+
+/**
+ * @brief composer-derived autoloader init
+ **/
+class FriendicaAutoloaderInit
+{
+    private static $loader;
+
+    public static function loadClassLoader($class)
+    {
+        if ('Composer\Autoload\ClassLoader' === $class) {
+            require __DIR__ . '/autoloader/ClassLoader.php';
+        }
+    }
+
+    public static function getLoader()
+    {
+        if (null !== self::$loader) {
+            return self::$loader;
+        }
+
+        spl_autoload_register(array('FriendicaAutoloaderInit', 'loadClassLoader'), true, true);
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader();
+        spl_autoload_unregister(array('FriendicaAutoloaderInit', 'loadClassLoader'));
+
+        // library 
+        $map = require __DIR__ . '/autoloader/autoload_namespaces.php';
+        foreach ($map as $namespace => $path) {
+            $loader->set($namespace, $path);
+        }
+
+        $map = require __DIR__ . '/autoloader/autoload_psr4.php';
+        foreach ($map as $namespace => $path) {
+            $loader->setPsr4($namespace, $path);
+        }
+
+        $classMap = require __DIR__ . '/autoloader/autoload_classmap.php';
+        if ($classMap) {
+            $loader->addClassMap($classMap);
+        }
+        
+        $loader->register(true);
+        
+        $includeFiles = require __DIR__ . '/autoloader/autoload_files.php';
+        foreach ($includeFiles as $fileIdentifier => $file) {
+            friendicaRequire($fileIdentifier, $file);
+        }
+        
+
+        return $loader;
+    }
+}
+
+function friendicaRequire($fileIdentifier, $file)
+{
+    if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
+        require $file;
+
+        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
+    }
+}
+
+
+
+return FriendicaAutoloaderInit::getLoader();

include/autoloader/ClassLoader.php

@@ -0,0 +1,413 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE.composer
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Autoload;
+
+/**
+ * ClassLoader implements a PSR-0 class loader
+ *
+ * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md
+ *
+ *     $loader = new \Composer\Autoload\ClassLoader();
+ *
+ *     // register classes with namespaces
+ *     $loader->add('Symfony\Component', __DIR__.'/component');
+ *     $loader->add('Symfony',           __DIR__.'/framework');
+ *
+ *     // activate the autoloader
+ *     $loader->register();
+ *
+ *     // to enable searching the include path (eg. for PEAR packages)
+ *     $loader->setUseIncludePath(true);
+ *
+ * In this example, if you try to use a class in the Symfony\Component
+ * namespace or one of its children (Symfony\Component\Console for instance),
+ * the autoloader will first look for the class under the component/
+ * directory, and it will then fallback to the framework/ directory if not
+ * found before giving up.
+ *
+ * This class is loosely based on the Symfony UniversalClassLoader.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class ClassLoader
+{
+    // PSR-4
+    private $prefixLengthsPsr4 = array();
+    private $prefixDirsPsr4 = array();
+    private $fallbackDirsPsr4 = array();
+
+    // PSR-0
+    private $prefixesPsr0 = array();
+    private $fallbackDirsPsr0 = array();
+
+    private $useIncludePath = false;
+    private $classMap = array();
+
+    private $classMapAuthoritative = false;
+
+    public function getPrefixes()
+    {
+        if (!empty($this->prefixesPsr0)) {
+            return call_user_func_array('array_merge', $this->prefixesPsr0);
+        }
+
+        return array();
+    }
+
+    public function getPrefixesPsr4()
+    {
+        return $this->prefixDirsPsr4;
+    }
+
+    public function getFallbackDirs()
+    {
+        return $this->fallbackDirsPsr0;
+    }
+
+    public function getFallbackDirsPsr4()
+    {
+        return $this->fallbackDirsPsr4;
+    }
+
+    public function getClassMap()
+    {
+        return $this->classMap;
+    }
+
+    /**
+     * @param array $classMap Class to filename map
+     */
+    public function addClassMap(array $classMap)
+    {
+        if ($this->classMap) {
+            $this->classMap = array_merge($this->classMap, $classMap);
+        } else {
+            $this->classMap = $classMap;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix, either
+     * appending or prepending to the ones previously set for this prefix.
+     *
+     * @param string       $prefix  The prefix
+     * @param array|string $paths   The PSR-0 root directories
+     * @param bool         $prepend Whether to prepend the directories
+     */
+    public function add($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            if ($prepend) {
+                $this->fallbackDirsPsr0 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr0
+                );
+            } else {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $this->fallbackDirsPsr0,
+                    (array) $paths
+                );
+            }
+
+            return;
+        }
+
+        $first = $prefix[0];
+        if (!isset($this->prefixesPsr0[$first][$prefix])) {
+            $this->prefixesPsr0[$first][$prefix] = (array) $paths;
+
+            return;
+        }
+        if ($prepend) {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixesPsr0[$first][$prefix]
+            );
+        } else {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $this->prefixesPsr0[$first][$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace, either
+     * appending or prepending to the ones previously set for this namespace.
+     *
+     * @param string       $prefix  The prefix/namespace, with trailing '\\'
+     * @param array|string $paths   The PSR-0 base directories
+     * @param bool         $prepend Whether to prepend the directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function addPsr4($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            // Register directories for the root namespace.
+            if ($prepend) {
+                $this->fallbackDirsPsr4 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr4
+                );
+            } else {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $this->fallbackDirsPsr4,
+                    (array) $paths
+                );
+            }
+        } elseif (!isset($this->prefixDirsPsr4[$prefix])) {
+            // Register directories for a new namespace.
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        } elseif ($prepend) {
+            // Prepend directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixDirsPsr4[$prefix]
+            );
+        } else {
+            // Append directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $this->prefixDirsPsr4[$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix,
+     * replacing any others previously set for this prefix.
+     *
+     * @param string       $prefix The prefix
+     * @param array|string $paths  The PSR-0 base directories
+     */
+    public function set($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr0 = (array) $paths;
+        } else {
+            $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace,
+     * replacing any others previously set for this namespace.
+     *
+     * @param string       $prefix The prefix/namespace, with trailing '\\'
+     * @param array|string $paths  The PSR-4 base directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function setPsr4($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr4 = (array) $paths;
+        } else {
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Turns on searching the include path for class files.
+     *
+     * @param bool $useIncludePath
+     */
+    public function setUseIncludePath($useIncludePath)
+    {
+        $this->useIncludePath = $useIncludePath;
+    }
+
+    /**
+     * Can be used to check if the autoloader uses the include path to check
+     * for classes.
+     *
+     * @return bool
+     */
+    public function getUseIncludePath()
+    {
+        return $this->useIncludePath;
+    }
+
+    /**
+     * Turns off searching the prefix and fallback directories for classes
+     * that have not been registered with the class map.
+     *
+     * @param bool $classMapAuthoritative
+     */
+    public function setClassMapAuthoritative($classMapAuthoritative)
+    {
+        $this->classMapAuthoritative = $classMapAuthoritative;
+    }
+
+    /**
+     * Should class lookup fail if not found in the current class map?
+     *
+     * @return bool
+     */
+    public function isClassMapAuthoritative()
+    {
+        return $this->classMapAuthoritative;
+    }
+
+    /**
+     * Registers this instance as an autoloader.
+     *
+     * @param bool $prepend Whether to prepend the autoloader or not
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+    }
+
+    /**
+     * Unregisters this instance as an autoloader.
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param  string    $class The name of the class
+     * @return bool|null True if loaded, null otherwise
+     */
+    public function loadClass($class)
+    {
+        if ($file = $this->findFile($class)) {
+            includeFile($file);
+
+            return true;
+        }
+    }
+
+    /**
+     * Finds the path to the file where the class is defined.
+     *
+     * @param string $class The name of the class
+     *
+     * @return string|false The path if found, false otherwise
+     */
+    public function findFile($class)
+    {
+        // work around for PHP 5.3.0 - 5.3.2 https://bugs.php.net/50731
+        if ('\\' == $class[0]) {
+            $class = substr($class, 1);
+        }
+
+        // class map lookup
+        if (isset($this->classMap[$class])) {
+            return $this->classMap[$class];
+        }
+        if ($this->classMapAuthoritative) {
+            return false;
+        }
+
+        $file = $this->findFileWithExtension($class, '.php');
+
+        // Search for Hack files if we are running on HHVM
+        if ($file === null && defined('HHVM_VERSION')) {
+            $file = $this->findFileWithExtension($class, '.hh');
+        }
+
+        if ($file === null) {
+            // Remember that this class does not exist.
+            return $this->classMap[$class] = false;
+        }
+
+        return $file;
+    }
+
+    private function findFileWithExtension($class, $ext)
+    {
+        // PSR-4 lookup
+        $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
+
+        $first = $class[0];
+        if (isset($this->prefixLengthsPsr4[$first])) {
+            foreach ($this->prefixLengthsPsr4[$first] as $prefix => $length) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($this->prefixDirsPsr4[$prefix] as $dir) {
+                        if (is_file($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-4 fallback dirs
+        foreach ($this->fallbackDirsPsr4 as $dir) {
+            if (is_file($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 lookup
+        if (false !== $pos = strrpos($class, '\\')) {
+            // namespaced class name
+            $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
+                . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
+        } else {
+            // PEAR-like class name
+            $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
+        }
+
+        if (isset($this->prefixesPsr0[$first])) {
+            foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($dirs as $dir) {
+                        if (is_file($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-0 fallback dirs
+        foreach ($this->fallbackDirsPsr0 as $dir) {
+            if (is_file($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 include paths.
+        if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
+            return $file;
+        }
+    }
+}
+
+/**
+ * Scope isolated include.
+ *
+ * Prevents access to $this/self from included files.
+ */
+function includeFile($file)
+{
+    include $file;
+}

include/autoloader/LICENSE.composer

@@ -0,0 +1,19 @@
+Copyright (c) 2015 Nils Adermann, Jordi Boggiano
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the Software), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, andor sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

include/autoloader/autoload_classmap.php

@@ -0,0 +1,9 @@
+<?php
+
+// autoload_classmap.php @generated by Composer
+
+$vendorDir = dirname(dirname(dirname(__FILE__)))."/library";
+$baseDir = dirname($vendorDir);
+
+return array(
+);

include/autoloader/autoload_files.php

@@ -0,0 +1,10 @@
+<?php
+
+// autoload_files.php @generated by Composer
+
+$vendorDir = dirname(dirname(dirname(__FILE__)))."/library";
+$baseDir = dirname($vendorDir);
+
+return array(
+    '2cffec82183ee1cea088009cef9a6fc3' => $vendorDir . '/ezyang/htmlpurifier/library/HTMLPurifier.composer.php',
+);

include/autoloader/autoload_namespaces.php

@@ -0,0 +1,10 @@
+<?php
+
+// autoload_namespaces.php @generated by Composer
+
+$vendorDir = dirname(dirname(dirname(__FILE__)))."/library";
+$baseDir = dirname($vendorDir);
+
+return array(
+    'HTMLPurifier' => array($vendorDir . '/ezyang/htmlpurifier/library'),
+);

include/autoloader/autoload_psr4.php

@@ -0,0 +1,9 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(dirname(dirname(__FILE__)))."/library";
+$baseDir = dirname($vendorDir);
+
+return array(
+);

include/dfrn.php

@@ -18,7 +18,6 @@ require_once("include/event.php");
 require_once("include/text.php");
 require_once("include/oembed.php");
 require_once("include/html2bbcode.php");
-require_once("library/HTMLPurifier.auto.php");
 
 /**
  * @brief This class contain functions to create and send DFRN XML files

include/event.php

@@ -76,7 +76,6 @@ function format_event_html($ev, $simple = false) {
 function parse_event($h) {
 
 	require_once('include/Scrape.php');
-	require_once('library/HTMLPurifier.auto.php');
 	require_once('include/html2bbcode');
 
 	$h = '<html><body>' . $h . '</body></html>';

library/HTMLPurifier/AttrDef/CSS/AlphaValue.php

@@ -1,21 +0,0 @@
-<?php
-
-class HTMLPurifier_AttrDef_CSS_AlphaValue extends HTMLPurifier_AttrDef_CSS_Number
-{
-
-    public function __construct() {
-        parent::__construct(false); // opacity is non-negative, but we will clamp it
-    }
-
-    public function validate($number, $config, $context) {
-        $result = parent::validate($number, $config, $context);
-        if ($result === false) return $result;
-        $float = (float) $result;
-        if ($float < 0.0) $result = '0';
-        if ($float > 1.0) $result = '1';
-        return $result;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/CSS/DenyElementDecorator.php

@@ -1,28 +0,0 @@
-<?php
-
-/**
- * Decorator which enables CSS properties to be disabled for specific elements.
- */
-class HTMLPurifier_AttrDef_CSS_DenyElementDecorator extends HTMLPurifier_AttrDef
-{
-    public $def, $element;
-
-    /**
-     * @param $def Definition to wrap
-     * @param $element Element to deny
-     */
-    public function __construct($def, $element) {
-        $this->def = $def;
-        $this->element = $element;
-    }
-    /**
-     * Checks if CurrentToken is set and equal to $this->element
-     */
-    public function validate($string, $config, $context) {
-        $token = $context->get('CurrentToken', true);
-        if ($token && $token->name == $this->element) return false;
-        return $this->def->validate($string, $config, $context);
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/CSS/FontFamily.php

@@ -1,72 +0,0 @@
-<?php
-
-/**
- * Validates a font family list according to CSS spec
- * @todo whitelisting allowed fonts would be nice
- */
-class HTMLPurifier_AttrDef_CSS_FontFamily extends HTMLPurifier_AttrDef
-{
-
-    public function validate($string, $config, $context) {
-        static $generic_names = array(
-            'serif' => true,
-            'sans-serif' => true,
-            'monospace' => true,
-            'fantasy' => true,
-            'cursive' => true
-        );
-
-        // assume that no font names contain commas in them
-        $fonts = explode(',', $string);
-        $final = '';
-        foreach($fonts as $font) {
-            $font = trim($font);
-            if ($font === '') continue;
-            // match a generic name
-            if (isset($generic_names[$font])) {
-                $final .= $font . ', ';
-                continue;
-            }
-            // match a quoted name
-            if ($font[0] === '"' || $font[0] === "'") {
-                $length = strlen($font);
-                if ($length <= 2) continue;
-                $quote = $font[0];
-                if ($font[$length - 1] !== $quote) continue;
-                $font = substr($font, 1, $length - 2);
-            }
-
-            $font = $this->expandCSSEscape($font);
-
-            // $font is a pure representation of the font name
-
-            if (ctype_alnum($font) && $font !== '') {
-                // very simple font, allow it in unharmed
-                $final .= $font . ', ';
-                continue;
-            }
-
-            // bugger out on whitespace.  form feed (0C) really
-            // shouldn't show up regardless
-            $font = str_replace(array("\n", "\t", "\r", "\x0C"), ' ', $font);
-
-            // These ugly transforms don't pose a security
-            // risk (as \\ and \" might).  We could try to be clever and
-            // use single-quote wrapping when there is a double quote
-            // present, but I have choosen not to implement that.
-            // (warning: this code relies on the selection of quotation
-            // mark below)
-            $font = str_replace('\\', '\\5C ', $font);
-            $font = str_replace('"',  '\\22 ', $font);
-
-            // complicated font, requires quoting
-            $final .= "\"$font\", "; // note that this will later get turned into &quot;
-        }
-        $final = rtrim($final, ', ');
-        if ($final === '') return false;
-        return $final;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/CSS/Length.php

@@ -1,47 +0,0 @@
-<?php
-
-/**
- * Represents a Length as defined by CSS.
- */
-class HTMLPurifier_AttrDef_CSS_Length extends HTMLPurifier_AttrDef
-{
-
-    protected $min, $max;
-
-    /**
-     * @param HTMLPurifier_Length $max Minimum length, or null for no bound. String is also acceptable.
-     * @param HTMLPurifier_Length $max Maximum length, or null for no bound. String is also acceptable.
-     */
-    public function __construct($min = null, $max = null) {
-        $this->min = $min !== null ? HTMLPurifier_Length::make($min) : null;
-        $this->max = $max !== null ? HTMLPurifier_Length::make($max) : null;
-    }
-
-    public function validate($string, $config, $context) {
-        $string = $this->parseCDATA($string);
-
-        // Optimizations
-        if ($string === '') return false;
-        if ($string === '0') return '0';
-        if (strlen($string) === 1) return false;
-
-        $length = HTMLPurifier_Length::make($string);
-        if (!$length->isValid()) return false;
-
-        if ($this->min) {
-            $c = $length->compareTo($this->min);
-            if ($c === false) return false;
-            if ($c < 0) return false;
-        }
-        if ($this->max) {
-            $c = $length->compareTo($this->max);
-            if ($c === false) return false;
-            if ($c > 0) return false;
-        }
-
-        return $length->toString();
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/CSS/ListStyle.php

@@ -1,78 +0,0 @@
-<?php
-
-/**
- * Validates shorthand CSS property list-style.
- * @warning Does not support url tokens that have internal spaces.
- */
-class HTMLPurifier_AttrDef_CSS_ListStyle extends HTMLPurifier_AttrDef
-{
-
-    /**
-     * Local copy of component validators.
-     * @note See HTMLPurifier_AttrDef_CSS_Font::$info for a similar impl.
-     */
-    protected $info;
-
-    public function __construct($config) {
-        $def = $config->getCSSDefinition();
-        $this->info['list-style-type']     = $def->info['list-style-type'];
-        $this->info['list-style-position'] = $def->info['list-style-position'];
-        $this->info['list-style-image'] = $def->info['list-style-image'];
-    }
-
-    public function validate($string, $config, $context) {
-
-        // regular pre-processing
-        $string = $this->parseCDATA($string);
-        if ($string === '') return false;
-
-        // assumes URI doesn't have spaces in it
-        $bits = explode(' ', strtolower($string)); // bits to process
-
-        $caught = array();
-        $caught['type']     = false;
-        $caught['position'] = false;
-        $caught['image']    = false;
-
-        $i = 0; // number of catches
-        $none = false;
-
-        foreach ($bits as $bit) {
-            if ($i >= 3) return; // optimization bit
-            if ($bit === '') continue;
-            foreach ($caught as $key => $status) {
-                if ($status !== false) continue;
-                $r = $this->info['list-style-' . $key]->validate($bit, $config, $context);
-                if ($r === false) continue;
-                if ($r === 'none') {
-                    if ($none) continue;
-                    else $none = true;
-                    if ($key == 'image') continue;
-                }
-                $caught[$key] = $r;
-                $i++;
-                break;
-            }
-        }
-
-        if (!$i) return false;
-
-        $ret = array();
-
-        // construct type
-        if ($caught['type']) $ret[] = $caught['type'];
-
-        // construct image
-        if ($caught['image']) $ret[] = $caught['image'];
-
-        // construct position
-        if ($caught['position']) $ret[] = $caught['position'];
-
-        if (empty($ret)) return false;
-        return implode(' ', $ret);
-
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/CSS/Percentage.php

@@ -1,40 +0,0 @@
-<?php
-
-/**
- * Validates a Percentage as defined by the CSS spec.
- */
-class HTMLPurifier_AttrDef_CSS_Percentage extends HTMLPurifier_AttrDef
-{
-
-    /**
-     * Instance of HTMLPurifier_AttrDef_CSS_Number to defer number validation
-     */
-    protected $number_def;
-
-    /**
-     * @param Bool indicating whether to forbid negative values
-     */
-    public function __construct($non_negative = false) {
-        $this->number_def = new HTMLPurifier_AttrDef_CSS_Number($non_negative);
-    }
-
-    public function validate($string, $config, $context) {
-
-        $string = $this->parseCDATA($string);
-
-        if ($string === '') return false;
-        $length = strlen($string);
-        if ($length === 1) return false;
-        if ($string[$length - 1] !== '%') return false;
-
-        $number = substr($string, 0, $length - 1);
-        $number = $this->number_def->validate($number, $config, $context);
-
-        if ($number === false) return false;
-        return "$number%";
-
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/HTML/Bool.php

@@ -1,28 +0,0 @@
-<?php
-
-/**
- * Validates a boolean attribute
- */
-class HTMLPurifier_AttrDef_HTML_Bool extends HTMLPurifier_AttrDef
-{
-
-    protected $name;
-    public $minimized = true;
-
-    public function __construct($name = false) {$this->name = $name;}
-
-    public function validate($string, $config, $context) {
-        if (empty($string)) return false;
-        return $this->name;
-    }
-
-    /**
-     * @param $string Name of attribute
-     */
-    public function make($string) {
-        return new HTMLPurifier_AttrDef_HTML_Bool($string);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/HTML/Color.php

@@ -1,32 +0,0 @@
-<?php
-
-/**
- * Validates a color according to the HTML spec.
- */
-class HTMLPurifier_AttrDef_HTML_Color extends HTMLPurifier_AttrDef
-{
-
-    public function validate($string, $config, $context) {
-
-        static $colors = null;
-        if ($colors === null) $colors = $config->get('Core.ColorKeywords');
-
-        $string = trim($string);
-
-        if (empty($string)) return false;
-        if (isset($colors[$string])) return $colors[$string];
-        if ($string[0] === '#') $hex = substr($string, 1);
-        else $hex = $string;
-
-        $length = strlen($hex);
-        if ($length !== 3 && $length !== 6) return false;
-        if (!ctype_xdigit($hex)) return false;
-        if ($length === 3) $hex = $hex[0].$hex[0].$hex[1].$hex[1].$hex[2].$hex[2];
-
-        return "#$hex";
-
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/HTML/FrameTarget.php

@@ -1,21 +0,0 @@
-<?php
-
-/**
- * Special-case enum attribute definition that lazy loads allowed frame targets
- */
-class HTMLPurifier_AttrDef_HTML_FrameTarget extends HTMLPurifier_AttrDef_Enum
-{
-
-    public $valid_values = false; // uninitialized value
-    protected $case_sensitive = false;
-
-    public function __construct() {}
-
-    public function validate($string, $config, $context) {
-        if ($this->valid_values === false) $this->valid_values = $config->get('Attr.AllowedFrameTargets');
-        return parent::validate($string, $config, $context);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/HTML/ID.php

@@ -1,70 +0,0 @@
-<?php
-
-/**
- * Validates the HTML attribute ID.
- * @warning Even though this is the id processor, it
- *          will ignore the directive Attr:IDBlacklist, since it will only
- *          go according to the ID accumulator. Since the accumulator is
- *          automatically generated, it will have already absorbed the
- *          blacklist. If you're hacking around, make sure you use load()!
- */
-
-class HTMLPurifier_AttrDef_HTML_ID extends HTMLPurifier_AttrDef
-{
-
-    // ref functionality disabled, since we also have to verify
-    // whether or not the ID it refers to exists
-
-    public function validate($id, $config, $context) {
-
-        if (!$config->get('Attr.EnableID')) return false;
-
-        $id = trim($id); // trim it first
-
-        if ($id === '') return false;
-
-        $prefix = $config->get('Attr.IDPrefix');
-        if ($prefix !== '') {
-            $prefix .= $config->get('Attr.IDPrefixLocal');
-            // prevent re-appending the prefix
-            if (strpos($id, $prefix) !== 0) $id = $prefix . $id;
-        } elseif ($config->get('Attr.IDPrefixLocal') !== '') {
-            trigger_error('%Attr.IDPrefixLocal cannot be used unless '.
-                '%Attr.IDPrefix is set', E_USER_WARNING);
-        }
-
-        //if (!$this->ref) {
-            $id_accumulator =& $context->get('IDAccumulator');
-            if (isset($id_accumulator->ids[$id])) return false;
-        //}
-
-        // we purposely avoid using regex, hopefully this is faster
-
-        if (ctype_alpha($id)) {
-            $result = true;
-        } else {
-            if (!ctype_alpha(@$id[0])) return false;
-            $trim = trim( // primitive style of regexps, I suppose
-                $id,
-                'A..Za..z0..9:-._'
-              );
-            $result = ($trim === '');
-        }
-
-        $regexp = $config->get('Attr.IDBlacklistRegexp');
-        if ($regexp && preg_match($regexp, $id)) {
-            return false;
-        }
-
-        if (/*!$this->ref && */$result) $id_accumulator->add($id);
-
-        // if no change was made to the ID, return the result
-        // else, return the new id if stripping whitespace made it
-        //     valid, or return false.
-        return $result ? $id : false;
-
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/HTML/Length.php

@@ -1,41 +0,0 @@
-<?php
-
-/**
- * Validates the HTML type length (not to be confused with CSS's length).
- *
- * This accepts integer pixels or percentages as lengths for certain
- * HTML attributes.
- */
-
-class HTMLPurifier_AttrDef_HTML_Length extends HTMLPurifier_AttrDef_HTML_Pixels
-{
-
-    public function validate($string, $config, $context) {
-
-        $string = trim($string);
-        if ($string === '') return false;
-
-        $parent_result = parent::validate($string, $config, $context);
-        if ($parent_result !== false) return $parent_result;
-
-        $length = strlen($string);
-        $last_char = $string[$length - 1];
-
-        if ($last_char !== '%') return false;
-
-        $points = substr($string, 0, $length - 1);
-
-        if (!is_numeric($points)) return false;
-
-        $points = (int) $points;
-
-        if ($points < 0) return '0%';
-        if ($points > 100) return '100%';
-
-        return ((string) $points) . '%';
-
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/HTML/MultiLength.php

@@ -1,41 +0,0 @@
-<?php
-
-/**
- * Validates a MultiLength as defined by the HTML spec.
- *
- * A multilength is either a integer (pixel count), a percentage, or
- * a relative number.
- */
-class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length
-{
-
-    public function validate($string, $config, $context) {
-
-        $string = trim($string);
-        if ($string === '') return false;
-
-        $parent_result = parent::validate($string, $config, $context);
-        if ($parent_result !== false) return $parent_result;
-
-        $length = strlen($string);
-        $last_char = $string[$length - 1];
-
-        if ($last_char !== '*') return false;
-
-        $int = substr($string, 0, $length - 1);
-
-        if ($int == '') return '*';
-        if (!is_numeric($int)) return false;
-
-        $int = (int) $int;
-
-        if ($int < 0) return false;
-        if ($int == 0) return '0';
-        if ($int == 1) return '*';
-        return ((string) $int) . '*';
-
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/HTML/Pixels.php

@@ -1,48 +0,0 @@
-<?php
-
-/**
- * Validates an integer representation of pixels according to the HTML spec.
- */
-class HTMLPurifier_AttrDef_HTML_Pixels extends HTMLPurifier_AttrDef
-{
-
-    protected $max;
-
-    public function __construct($max = null) {
-        $this->max = $max;
-    }
-
-    public function validate($string, $config, $context) {
-
-        $string = trim($string);
-        if ($string === '0') return $string;
-        if ($string === '')  return false;
-        $length = strlen($string);
-        if (substr($string, $length - 2) == 'px') {
-            $string = substr($string, 0, $length - 2);
-        }
-        if (!is_numeric($string)) return false;
-        $int = (int) $string;
-
-        if ($int < 0) return '0';
-
-        // upper-bound value, extremely high values can
-        // crash operating systems, see <http://ha.ckers.org/imagecrash.html>
-        // WARNING, above link WILL crash you if you're using Windows
-
-        if ($this->max !== null && $int > $this->max) return (string) $this->max;
-
-        return (string) $int;
-
-    }
-
-    public function make($string) {
-        if ($string === '') $max = null;
-        else $max = (int) $string;
-        $class = get_class($this);
-        return new $class($max);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/Text.php

@@ -1,15 +0,0 @@
-<?php
-
-/**
- * Validates arbitrary text according to the HTML spec.
- */
-class HTMLPurifier_AttrDef_Text extends HTMLPurifier_AttrDef
-{
-
-    public function validate($string, $config, $context) {
-        return $this->parseCDATA($string);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/URI/Host.php

@@ -1,62 +0,0 @@
-<?php
-
-/**
- * Validates a host according to the IPv4, IPv6 and DNS (future) specifications.
- */
-class HTMLPurifier_AttrDef_URI_Host extends HTMLPurifier_AttrDef
-{
-
-    /**
-     * Instance of HTMLPurifier_AttrDef_URI_IPv4 sub-validator
-     */
-    protected $ipv4;
-
-    /**
-     * Instance of HTMLPurifier_AttrDef_URI_IPv6 sub-validator
-     */
-    protected $ipv6;
-
-    public function __construct() {
-        $this->ipv4 = new HTMLPurifier_AttrDef_URI_IPv4();
-        $this->ipv6 = new HTMLPurifier_AttrDef_URI_IPv6();
-    }
-
-    public function validate($string, $config, $context) {
-        $length = strlen($string);
-        if ($string === '') return '';
-        if ($length > 1 && $string[0] === '[' && $string[$length-1] === ']') {
-            //IPv6
-            $ip = substr($string, 1, $length - 2);
-            $valid = $this->ipv6->validate($ip, $config, $context);
-            if ($valid === false) return false;
-            return '['. $valid . ']';
-        }
-
-        // need to do checks on unusual encodings too
-        $ipv4 = $this->ipv4->validate($string, $config, $context);
-        if ($ipv4 !== false) return $ipv4;
-
-        // A regular domain name.
-
-        // This breaks I18N domain names, but we don't have proper IRI support,
-        // so force users to insert Punycode. If there's complaining we'll
-        // try to fix things into an international friendly form.
-
-        // The productions describing this are:
-        $a   = '[a-z]';     // alpha
-        $an  = '[a-z0-9]';  // alphanum
-        $and = '[a-z0-9-]'; // alphanum | "-"
-        // domainlabel = alphanum | alphanum *( alphanum | "-" ) alphanum
-        $domainlabel   = "$an($and*$an)?";
-        // toplabel    = alpha | alpha *( alphanum | "-" ) alphanum
-        $toplabel      = "$a($and*$an)?";
-        // hostname    = *( domainlabel "." ) toplabel [ "." ]
-        $match = preg_match("/^($domainlabel\.)*$toplabel\.?$/i", $string);
-        if (!$match) return false;
-
-        return $string;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrDef/URI/IPv6.php

@@ -1,99 +0,0 @@
-<?php
-
-/**
- * Validates an IPv6 address.
- * @author Feyd @ forums.devnetwork.net (public domain)
- * @note This function requires brackets to have been removed from address
- *       in URI.
- */
-class HTMLPurifier_AttrDef_URI_IPv6 extends HTMLPurifier_AttrDef_URI_IPv4
-{
-
-    public function validate($aIP, $config, $context) {
-
-        if (!$this->ip4) $this->_loadRegex();
-
-        $original = $aIP;
-
-        $hex = '[0-9a-fA-F]';
-        $blk = '(?:' . $hex . '{1,4})';
-        $pre = '(?:/(?:12[0-8]|1[0-1][0-9]|[1-9][0-9]|[0-9]))';   // /0 - /128
-
-        //      prefix check
-        if (strpos($aIP, '/') !== false)
-        {
-                if (preg_match('#' . $pre . '$#s', $aIP, $find))
-                {
-                        $aIP = substr($aIP, 0, 0-strlen($find[0]));
-                        unset($find);
-                }
-                else
-                {
-                        return false;
-                }
-        }
-
-        //      IPv4-compatiblity check
-        if (preg_match('#(?<=:'.')' . $this->ip4 . '$#s', $aIP, $find))
-        {
-                $aIP = substr($aIP, 0, 0-strlen($find[0]));
-                $ip = explode('.', $find[0]);
-                $ip = array_map('dechex', $ip);
-                $aIP .= $ip[0] . $ip[1] . ':' . $ip[2] . $ip[3];
-                unset($find, $ip);
-        }
-
-        //      compression check
-        $aIP = explode('::', $aIP);
-        $c = count($aIP);
-        if ($c > 2)
-        {
-                return false;
-        }
-        elseif ($c == 2)
-        {
-                list($first, $second) = $aIP;
-                $first = explode(':', $first);
-                $second = explode(':', $second);
-
-                if (count($first) + count($second) > 8)
-                {
-                        return false;
-                }
-
-                while(count($first) < 8)
-                {
-                        array_push($first, '0');
-                }
-
-                array_splice($first, 8 - count($second), 8, $second);
-                $aIP = $first;
-                unset($first,$second);
-        }
-        else
-        {
-                $aIP = explode(':', $aIP[0]);
-        }
-        $c = count($aIP);
-
-        if ($c != 8)
-        {
-                return false;
-        }
-
-        //      All the pieces should be 16-bit hex strings. Are they?
-        foreach ($aIP as $piece)
-        {
-                if (!preg_match('#^[0-9a-fA-F]{4}$#s', sprintf('%04s', $piece)))
-                {
-                        return false;
-                }
-        }
-
-        return $original;
-
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrTransform/BoolToCSS.php

@@ -1,36 +0,0 @@
-<?php
-
-/**
- * Pre-transform that changes converts a boolean attribute to fixed CSS
- */
-class HTMLPurifier_AttrTransform_BoolToCSS extends HTMLPurifier_AttrTransform {
-
-    /**
-     * Name of boolean attribute that is trigger
-     */
-    protected $attr;
-
-    /**
-     * CSS declarations to add to style, needs trailing semicolon
-     */
-    protected $css;
-
-    /**
-     * @param $attr string attribute name to convert from
-     * @param $css string CSS declarations to add to style (needs semicolon)
-     */
-    public function __construct($attr, $css) {
-        $this->attr = $attr;
-        $this->css  = $css;
-    }
-
-    public function transform($attr, $config, $context) {
-        if (!isset($attr[$this->attr])) return $attr;
-        unset($attr[$this->attr]);
-        $this->prependCSS($attr, $this->css);
-        return $attr;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrTransform/EnumToCSS.php

@@ -1,58 +0,0 @@
-<?php
-
-/**
- * Generic pre-transform that converts an attribute with a fixed number of
- * values (enumerated) to CSS.
- */
-class HTMLPurifier_AttrTransform_EnumToCSS extends HTMLPurifier_AttrTransform {
-
-    /**
-     * Name of attribute to transform from
-     */
-    protected $attr;
-
-    /**
-     * Lookup array of attribute values to CSS
-     */
-    protected $enumToCSS = array();
-
-    /**
-     * Case sensitivity of the matching
-     * @warning Currently can only be guaranteed to work with ASCII
-     *          values.
-     */
-    protected $caseSensitive = false;
-
-    /**
-     * @param $attr String attribute name to transform from
-     * @param $enumToCSS Lookup array of attribute values to CSS
-     * @param $case_sensitive Boolean case sensitivity indicator, default false
-     */
-    public function __construct($attr, $enum_to_css, $case_sensitive = false) {
-        $this->attr = $attr;
-        $this->enumToCSS = $enum_to_css;
-        $this->caseSensitive = (bool) $case_sensitive;
-    }
-
-    public function transform($attr, $config, $context) {
-
-        if (!isset($attr[$this->attr])) return $attr;
-
-        $value = trim($attr[$this->attr]);
-        unset($attr[$this->attr]);
-
-        if (!$this->caseSensitive) $value = strtolower($value);
-
-        if (!isset($this->enumToCSS[$value])) {
-            return $attr;
-        }
-
-        $this->prependCSS($attr, $this->enumToCSS[$value]);
-
-        return $attr;
-
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrTransform/Length.php

@@ -1,27 +0,0 @@
-<?php
-
-/**
- * Class for handling width/height length attribute transformations to CSS
- */
-class HTMLPurifier_AttrTransform_Length extends HTMLPurifier_AttrTransform
-{
-
-    protected $name;
-    protected $cssName;
-
-    public function __construct($name, $css_name = null) {
-        $this->name = $name;
-        $this->cssName = $css_name ? $css_name : $name;
-    }
-
-    public function transform($attr, $config, $context) {
-        if (!isset($attr[$this->name])) return $attr;
-        $length = $this->confiscateAttr($attr, $this->name);
-        if(ctype_digit($length)) $length .= 'px';
-        $this->prependCSS($attr, $this->cssName . ":$length;");
-        return $attr;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrTransform/Name.php

@@ -1,21 +0,0 @@
-<?php
-
-/**
- * Pre-transform that changes deprecated name attribute to ID if necessary
- */
-class HTMLPurifier_AttrTransform_Name extends HTMLPurifier_AttrTransform
-{
-
-    public function transform($attr, $config, $context) {
-        // Abort early if we're using relaxed definition of name
-        if ($config->get('HTML.Attr.Name.UseCDATA')) return $attr;
-        if (!isset($attr['name'])) return $attr;
-        $id = $this->confiscateAttr($attr, 'name');
-        if ( isset($attr['id']))   return $attr;
-        $attr['id'] = $id;
-        return $attr;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrTransform/NameSync.php

@@ -1,27 +0,0 @@
-<?php
-
-/**
- * Post-transform that performs validation to the name attribute; if
- * it is present with an equivalent id attribute, it is passed through;
- * otherwise validation is performed.
- */
-class HTMLPurifier_AttrTransform_NameSync extends HTMLPurifier_AttrTransform
-{
-
-    public function __construct() {
-        $this->idDef = new HTMLPurifier_AttrDef_HTML_ID();
-    }
-
-    public function transform($attr, $config, $context) {
-        if (!isset($attr['name'])) return $attr;
-        $name = $attr['name'];
-        if (isset($attr['id']) && $attr['id'] === $name) return $attr;
-        $result = $this->idDef->validate($name, $config, $context);
-        if ($result === false) unset($attr['name']);
-        else $attr['name'] = $result;
-        return $attr;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrTransform/SafeObject.php

@@ -1,16 +0,0 @@
-<?php
-
-/**
- * Writes default type for all objects. Currently only supports flash.
- */
-class HTMLPurifier_AttrTransform_SafeObject extends HTMLPurifier_AttrTransform
-{
-    public $name = "SafeObject";
-
-    function transform($attr, $config, $context) {
-        if (!isset($attr['type'])) $attr['type'] = 'application/x-shockwave-flash';
-        return $attr;
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/AttrTransform/Textarea.php

@@ -1,18 +0,0 @@
-<?php
-
-/**
- * Sets height/width defaults for <textarea>
- */
-class HTMLPurifier_AttrTransform_Textarea extends HTMLPurifier_AttrTransform
-{
-
-    public function transform($attr, $config, $context) {
-        // Calculated from Firefox
-        if (!isset($attr['cols'])) $attr['cols'] = '22';
-        if (!isset($attr['rows'])) $attr['rows'] = '3';
-        return $attr;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Bootstrap.php

@@ -1,98 +0,0 @@
-<?php
-
-// constants are slow, so we use as few as possible
-if (!defined('HTMLPURIFIER_PREFIX')) {
-    define('HTMLPURIFIER_PREFIX', realpath(dirname(__FILE__) . '/..'));
-}
-
-// accomodations for versions earlier than 5.0.2
-// borrowed from PHP_Compat, LGPL licensed, by Aidan Lister <aidan@php.net>
-if (!defined('PHP_EOL')) {
-    switch (strtoupper(substr(PHP_OS, 0, 3))) {
-        case 'WIN':
-            define('PHP_EOL', "\r\n");
-            break;
-        case 'DAR':
-            define('PHP_EOL', "\r");
-            break;
-        default:
-            define('PHP_EOL', "\n");
-    }
-}
-
-/**
- * Bootstrap class that contains meta-functionality for HTML Purifier such as
- * the autoload function.
- *
- * @note
- *      This class may be used without any other files from HTML Purifier.
- */
-class HTMLPurifier_Bootstrap
-{
-
-    /**
-     * Autoload function for HTML Purifier
-     * @param $class Class to load
-     */
-    public static function autoload($class) {
-        $file = HTMLPurifier_Bootstrap::getPath($class);
-        if (!$file) return false;
-        require HTMLPURIFIER_PREFIX . '/' . $file;
-        return true;
-    }
-
-    /**
-     * Returns the path for a specific class.
-     */
-    public static function getPath($class) {
-        if (strncmp('HTMLPurifier', $class, 12) !== 0) return false;
-        // Custom implementations
-        if (strncmp('HTMLPurifier_Language_', $class, 22) === 0) {
-            $code = str_replace('_', '-', substr($class, 22));
-            $file = 'HTMLPurifier/Language/classes/' . $code . '.php';
-        } else {
-            $file = str_replace('_', '/', $class) . '.php';
-        }
-        if (!file_exists(HTMLPURIFIER_PREFIX . '/' . $file)) return false;
-        return $file;
-    }
-
-    /**
-     * "Pre-registers" our autoloader on the SPL stack.
-     */
-    public static function registerAutoload() {
-        $autoload = array('HTMLPurifier_Bootstrap', 'autoload');
-        if ( ($funcs = spl_autoload_functions()) === false ) {
-            spl_autoload_register($autoload);
-        } elseif (function_exists('spl_autoload_unregister')) {
-            $compat = version_compare(PHP_VERSION, '5.1.2', '<=') &&
-                      version_compare(PHP_VERSION, '5.1.0', '>=');
-            foreach ($funcs as $func) {
-                if (is_array($func)) {
-                    // :TRICKY: There are some compatibility issues and some
-                    // places where we need to error out
-                    $reflector = new ReflectionMethod($func[0], $func[1]);
-                    if (!$reflector->isStatic()) {
-                        throw new Exception('
-                            HTML Purifier autoloader registrar is not compatible
-                            with non-static object methods due to PHP Bug #44144;
-                            Please do not use HTMLPurifier.autoload.php (or any
-                            file that includes this file); instead, place the code:
-                            spl_autoload_register(array(\'HTMLPurifier_Bootstrap\', \'autoload\'))
-                            after your own autoloaders.
-                        ');
-                    }
-                    // Suprisingly, spl_autoload_register supports the
-                    // Class::staticMethod callback format, although call_user_func doesn't
-                    if ($compat) $func = implode('::', $func);
-                }
-                spl_autoload_unregister($func);
-            }
-            spl_autoload_register($autoload);
-            foreach ($funcs as $func) spl_autoload_register($func);
-        }
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/CSSDefinition.php

@@ -1,292 +0,0 @@
-<?php
-
-/**
- * Defines allowed CSS attributes and what their values are.
- * @see HTMLPurifier_HTMLDefinition
- */
-class HTMLPurifier_CSSDefinition extends HTMLPurifier_Definition
-{
-
-    public $type = 'CSS';
-
-    /**
-     * Assoc array of attribute name to definition object.
-     */
-    public $info = array();
-
-    /**
-     * Constructs the info array.  The meat of this class.
-     */
-    protected function doSetup($config) {
-
-        $this->info['text-align'] = new HTMLPurifier_AttrDef_Enum(
-            array('left', 'right', 'center', 'justify'), false);
-
-        $border_style =
-        $this->info['border-bottom-style'] =
-        $this->info['border-right-style'] =
-        $this->info['border-left-style'] =
-        $this->info['border-top-style'] =  new HTMLPurifier_AttrDef_Enum(
-            array('none', 'hidden', 'dotted', 'dashed', 'solid', 'double',
-            'groove', 'ridge', 'inset', 'outset'), false);
-
-        $this->info['border-style'] = new HTMLPurifier_AttrDef_CSS_Multiple($border_style);
-
-        $this->info['clear'] = new HTMLPurifier_AttrDef_Enum(
-            array('none', 'left', 'right', 'both'), false);
-        $this->info['float'] = new HTMLPurifier_AttrDef_Enum(
-            array('none', 'left', 'right'), false);
-        $this->info['font-style'] = new HTMLPurifier_AttrDef_Enum(
-            array('normal', 'italic', 'oblique'), false);
-        $this->info['font-variant'] = new HTMLPurifier_AttrDef_Enum(
-            array('normal', 'small-caps'), false);
-
-        $uri_or_none = new HTMLPurifier_AttrDef_CSS_Composite(
-            array(
-                new HTMLPurifier_AttrDef_Enum(array('none')),
-                new HTMLPurifier_AttrDef_CSS_URI()
-            )
-        );
-
-        $this->info['list-style-position'] = new HTMLPurifier_AttrDef_Enum(
-            array('inside', 'outside'), false);
-        $this->info['list-style-type'] = new HTMLPurifier_AttrDef_Enum(
-            array('disc', 'circle', 'square', 'decimal', 'lower-roman',
-            'upper-roman', 'lower-alpha', 'upper-alpha', 'none'), false);
-        $this->info['list-style-image'] = $uri_or_none;
-
-        $this->info['list-style'] = new HTMLPurifier_AttrDef_CSS_ListStyle($config);
-
-        $this->info['text-transform'] = new HTMLPurifier_AttrDef_Enum(
-            array('capitalize', 'uppercase', 'lowercase', 'none'), false);
-        $this->info['color'] = new HTMLPurifier_AttrDef_CSS_Color();
-
-        $this->info['background-image'] = $uri_or_none;
-        $this->info['background-repeat'] = new HTMLPurifier_AttrDef_Enum(
-            array('repeat', 'repeat-x', 'repeat-y', 'no-repeat')
-        );
-        $this->info['background-attachment'] = new HTMLPurifier_AttrDef_Enum(
-            array('scroll', 'fixed')
-        );
-        $this->info['background-position'] = new HTMLPurifier_AttrDef_CSS_BackgroundPosition();
-
-        $border_color =
-        $this->info['border-top-color'] =
-        $this->info['border-bottom-color'] =
-        $this->info['border-left-color'] =
-        $this->info['border-right-color'] =
-        $this->info['background-color'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_Enum(array('transparent')),
-            new HTMLPurifier_AttrDef_CSS_Color()
-        ));
-
-        $this->info['background'] = new HTMLPurifier_AttrDef_CSS_Background($config);
-
-        $this->info['border-color'] = new HTMLPurifier_AttrDef_CSS_Multiple($border_color);
-
-        $border_width =
-        $this->info['border-top-width'] =
-        $this->info['border-bottom-width'] =
-        $this->info['border-left-width'] =
-        $this->info['border-right-width'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_Enum(array('thin', 'medium', 'thick')),
-            new HTMLPurifier_AttrDef_CSS_Length('0') //disallow negative
-        ));
-
-        $this->info['border-width'] = new HTMLPurifier_AttrDef_CSS_Multiple($border_width);
-
-        $this->info['letter-spacing'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_Enum(array('normal')),
-            new HTMLPurifier_AttrDef_CSS_Length()
-        ));
-
-        $this->info['word-spacing'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_Enum(array('normal')),
-            new HTMLPurifier_AttrDef_CSS_Length()
-        ));
-
-        $this->info['font-size'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_Enum(array('xx-small', 'x-small',
-                'small', 'medium', 'large', 'x-large', 'xx-large',
-                'larger', 'smaller')),
-            new HTMLPurifier_AttrDef_CSS_Percentage(),
-            new HTMLPurifier_AttrDef_CSS_Length()
-        ));
-
-        $this->info['line-height'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_Enum(array('normal')),
-            new HTMLPurifier_AttrDef_CSS_Number(true), // no negatives
-            new HTMLPurifier_AttrDef_CSS_Length('0'),
-            new HTMLPurifier_AttrDef_CSS_Percentage(true)
-        ));
-
-        $margin =
-        $this->info['margin-top'] =
-        $this->info['margin-bottom'] =
-        $this->info['margin-left'] =
-        $this->info['margin-right'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_CSS_Length(),
-            new HTMLPurifier_AttrDef_CSS_Percentage(),
-            new HTMLPurifier_AttrDef_Enum(array('auto'))
-        ));
-
-        $this->info['margin'] = new HTMLPurifier_AttrDef_CSS_Multiple($margin);
-
-        // non-negative
-        $padding =
-        $this->info['padding-top'] =
-        $this->info['padding-bottom'] =
-        $this->info['padding-left'] =
-        $this->info['padding-right'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_CSS_Length('0'),
-            new HTMLPurifier_AttrDef_CSS_Percentage(true)
-        ));
-
-        $this->info['padding'] = new HTMLPurifier_AttrDef_CSS_Multiple($padding);
-
-        $this->info['text-indent'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_CSS_Length(),
-            new HTMLPurifier_AttrDef_CSS_Percentage()
-        ));
-
-        $trusted_wh = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_CSS_Length('0'),
-            new HTMLPurifier_AttrDef_CSS_Percentage(true),
-            new HTMLPurifier_AttrDef_Enum(array('auto'))
-        ));
-        $max = $config->get('CSS.MaxImgLength');
-
-        $this->info['width'] =
-        $this->info['height'] =
-            $max === null ?
-            $trusted_wh :
-            new HTMLPurifier_AttrDef_Switch('img',
-                // For img tags:
-                new HTMLPurifier_AttrDef_CSS_Composite(array(
-                    new HTMLPurifier_AttrDef_CSS_Length('0', $max),
-                    new HTMLPurifier_AttrDef_Enum(array('auto'))
-                )),
-                // For everyone else:
-                $trusted_wh
-            );
-
-        $this->info['text-decoration'] = new HTMLPurifier_AttrDef_CSS_TextDecoration();
-
-        $this->info['font-family'] = new HTMLPurifier_AttrDef_CSS_FontFamily();
-
-        // this could use specialized code
-        $this->info['font-weight'] = new HTMLPurifier_AttrDef_Enum(
-            array('normal', 'bold', 'bolder', 'lighter', '100', '200', '300',
-            '400', '500', '600', '700', '800', '900'), false);
-
-        // MUST be called after other font properties, as it references
-        // a CSSDefinition object
-        $this->info['font'] = new HTMLPurifier_AttrDef_CSS_Font($config);
-
-        // same here
-        $this->info['border'] =
-        $this->info['border-bottom'] =
-        $this->info['border-top'] =
-        $this->info['border-left'] =
-        $this->info['border-right'] = new HTMLPurifier_AttrDef_CSS_Border($config);
-
-        $this->info['border-collapse'] = new HTMLPurifier_AttrDef_Enum(array(
-            'collapse', 'separate'));
-
-        $this->info['caption-side'] = new HTMLPurifier_AttrDef_Enum(array(
-            'top', 'bottom'));
-
-        $this->info['table-layout'] = new HTMLPurifier_AttrDef_Enum(array(
-            'auto', 'fixed'));
-
-        $this->info['vertical-align'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
-            new HTMLPurifier_AttrDef_Enum(array('baseline', 'sub', 'super',
-                'top', 'text-top', 'middle', 'bottom', 'text-bottom')),
-            new HTMLPurifier_AttrDef_CSS_Length(),
-            new HTMLPurifier_AttrDef_CSS_Percentage()
-        ));
-
-        $this->info['border-spacing'] = new HTMLPurifier_AttrDef_CSS_Multiple(new HTMLPurifier_AttrDef_CSS_Length(), 2);
-
-        // partial support
-        $this->info['white-space'] = new HTMLPurifier_AttrDef_Enum(array('nowrap'));
-
-        if ($config->get('CSS.Proprietary')) {
-            $this->doSetupProprietary($config);
-        }
-
-        if ($config->get('CSS.AllowTricky')) {
-            $this->doSetupTricky($config);
-        }
-
-        $allow_important = $config->get('CSS.AllowImportant');
-        // wrap all attr-defs with decorator that handles !important
-        foreach ($this->info as $k => $v) {
-            $this->info[$k] = new HTMLPurifier_AttrDef_CSS_ImportantDecorator($v, $allow_important);
-        }
-
-        $this->setupConfigStuff($config);
-    }
-
-    protected function doSetupProprietary($config) {
-        // Internet Explorer only scrollbar colors
-        $this->info['scrollbar-arrow-color']        = new HTMLPurifier_AttrDef_CSS_Color();
-        $this->info['scrollbar-base-color']         = new HTMLPurifier_AttrDef_CSS_Color();
-        $this->info['scrollbar-darkshadow-color']   = new HTMLPurifier_AttrDef_CSS_Color();
-        $this->info['scrollbar-face-color']         = new HTMLPurifier_AttrDef_CSS_Color();
-        $this->info['scrollbar-highlight-color']    = new HTMLPurifier_AttrDef_CSS_Color();
-        $this->info['scrollbar-shadow-color']       = new HTMLPurifier_AttrDef_CSS_Color();
-
-        // technically not proprietary, but CSS3, and no one supports it
-        $this->info['opacity']          = new HTMLPurifier_AttrDef_CSS_AlphaValue();
-        $this->info['-moz-opacity']     = new HTMLPurifier_AttrDef_CSS_AlphaValue();
-        $this->info['-khtml-opacity']   = new HTMLPurifier_AttrDef_CSS_AlphaValue();
-
-        // only opacity, for now
-        $this->info['filter'] = new HTMLPurifier_AttrDef_CSS_Filter();
-
-    }
-
-    protected function doSetupTricky($config) {
-        $this->info['display'] = new HTMLPurifier_AttrDef_Enum(array(
-            'inline', 'block', 'list-item', 'run-in', 'compact',
-            'marker', 'table', 'inline-table', 'table-row-group',
-            'table-header-group', 'table-footer-group', 'table-row',
-            'table-column-group', 'table-column', 'table-cell', 'table-caption', 'none'
-        ));
-        $this->info['visibility'] = new HTMLPurifier_AttrDef_Enum(array(
-            'visible', 'hidden', 'collapse'
-        ));
-        $this->info['overflow'] = new HTMLPurifier_AttrDef_Enum(array('visible', 'hidden', 'auto', 'scroll'));
-    }
-
-
-    /**
-     * Performs extra config-based processing. Based off of
-     * HTMLPurifier_HTMLDefinition.
-     * @todo Refactor duplicate elements into common class (probably using
-     *       composition, not inheritance).
-     */
-    protected function setupConfigStuff($config) {
-
-        // setup allowed elements
-        $support = "(for information on implementing this, see the ".
-                   "support forums) ";
-        $allowed_attributes = $config->get('CSS.AllowedProperties');
-        if ($allowed_attributes !== null) {
-            foreach ($this->info as $name => $d) {
-                if(!isset($allowed_attributes[$name])) unset($this->info[$name]);
-                unset($allowed_attributes[$name]);
-            }
-            // emit errors
-            foreach ($allowed_attributes as $name => $d) {
-                // :TODO: Is this htmlspecialchars() call really necessary?
-                $name = htmlspecialchars($name);
-                trigger_error("Style attribute '$name' is not supported $support", E_USER_WARNING);
-            }
-        }
-
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/ChildDef/Optional.php

@@ -1,26 +0,0 @@
-<?php
-
-/**
- * Definition that allows a set of elements, and allows no children.
- * @note This is a hack to reuse code from HTMLPurifier_ChildDef_Required,
- *       really, one shouldn't inherit from the other.  Only altered behavior
- *       is to overload a returned false with an array.  Thus, it will never
- *       return false.
- */
-class HTMLPurifier_ChildDef_Optional extends HTMLPurifier_ChildDef_Required
-{
-    public $allow_empty = true;
-    public $type = 'optional';
-    public function validateChildren($tokens_of_children, $config, $context) {
-        $result = parent::validateChildren($tokens_of_children, $config, $context);
-        // we assume that $tokens_of_children is not modified
-        if ($result === false) {
-            if (empty($tokens_of_children)) return true;
-            elseif ($this->whitespace) return $tokens_of_children;
-            else return array();
-        }
-        return $result;
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/ChildDef/Required.php

@@ -1,117 +0,0 @@
-<?php
-
-/**
- * Definition that allows a set of elements, but disallows empty children.
- */
-class HTMLPurifier_ChildDef_Required extends HTMLPurifier_ChildDef
-{
-    /**
-     * Lookup table of allowed elements.
-     * @public
-     */
-    public $elements = array();
-    /**
-     * Whether or not the last passed node was all whitespace.
-     */
-    protected $whitespace = false;
-    /**
-     * @param $elements List of allowed element names (lowercase).
-     */
-    public function __construct($elements) {
-        if (is_string($elements)) {
-            $elements = str_replace(' ', '', $elements);
-            $elements = explode('|', $elements);
-        }
-        $keys = array_keys($elements);
-        if ($keys == array_keys($keys)) {
-            $elements = array_flip($elements);
-            foreach ($elements as $i => $x) {
-                $elements[$i] = true;
-                if (empty($i)) unset($elements[$i]); // remove blank
-            }
-        }
-        $this->elements = $elements;
-    }
-    public $allow_empty = false;
-    public $type = 'required';
-    public function validateChildren($tokens_of_children, $config, $context) {
-        // Flag for subclasses
-        $this->whitespace = false;
-
-        // if there are no tokens, delete parent node
-        if (empty($tokens_of_children)) return false;
-
-        // the new set of children
-        $result = array();
-
-        // current depth into the nest
-        $nesting = 0;
-
-        // whether or not we're deleting a node
-        $is_deleting = false;
-
-        // whether or not parsed character data is allowed
-        // this controls whether or not we silently drop a tag
-        // or generate escaped HTML from it
-        $pcdata_allowed = isset($this->elements['#PCDATA']);
-
-        // a little sanity check to make sure it's not ALL whitespace
-        $all_whitespace = true;
-
-        // some configuration
-        $escape_invalid_children = $config->get('Core.EscapeInvalidChildren');
-
-        // generator
-        $gen = new HTMLPurifier_Generator($config, $context);
-
-        foreach ($tokens_of_children as $token) {
-            if (!empty($token->is_whitespace)) {
-                $result[] = $token;
-                continue;
-            }
-            $all_whitespace = false; // phew, we're not talking about whitespace
-
-            $is_child = ($nesting == 0);
-
-            if ($token instanceof HTMLPurifier_Token_Start) {
-                $nesting++;
-            } elseif ($token instanceof HTMLPurifier_Token_End) {
-                $nesting--;
-            }
-
-            if ($is_child) {
-                $is_deleting = false;
-                if (!isset($this->elements[$token->name])) {
-                    $is_deleting = true;
-                    if ($pcdata_allowed && $token instanceof HTMLPurifier_Token_Text) {
-                        $result[] = $token;
-                    } elseif ($pcdata_allowed && $escape_invalid_children) {
-                        $result[] = new HTMLPurifier_Token_Text(
-                            $gen->generateFromToken($token)
-                        );
-                    }
-                    continue;
-                }
-            }
-            if (!$is_deleting || ($pcdata_allowed && $token instanceof HTMLPurifier_Token_Text)) {
-                $result[] = $token;
-            } elseif ($pcdata_allowed && $escape_invalid_children) {
-                $result[] =
-                    new HTMLPurifier_Token_Text(
-                        $gen->generateFromToken($token)
-                    );
-            } else {
-                // drop silently
-            }
-        }
-        if (empty($result)) return false;
-        if ($all_whitespace) {
-            $this->whitespace = true;
-            return false;
-        }
-        if ($tokens_of_children == $result) return true;
-        return $result;
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/ChildDef/StrictBlockquote.php

@@ -1,88 +0,0 @@
-<?php
-
-/**
- * Takes the contents of blockquote when in strict and reformats for validation.
- */
-class HTMLPurifier_ChildDef_StrictBlockquote extends HTMLPurifier_ChildDef_Required
-{
-    protected $real_elements;
-    protected $fake_elements;
-    public $allow_empty = true;
-    public $type = 'strictblockquote';
-    protected $init = false;
-
-    /**
-     * @note We don't want MakeWellFormed to auto-close inline elements since
-     *       they might be allowed.
-     */
-    public function getAllowedElements($config) {
-        $this->init($config);
-        return $this->fake_elements;
-    }
-
-    public function validateChildren($tokens_of_children, $config, $context) {
-
-        $this->init($config);
-
-        // trick the parent class into thinking it allows more
-        $this->elements = $this->fake_elements;
-        $result = parent::validateChildren($tokens_of_children, $config, $context);
-        $this->elements = $this->real_elements;
-
-        if ($result === false) return array();
-        if ($result === true) $result = $tokens_of_children;
-
-        $def = $config->getHTMLDefinition();
-        $block_wrap_start = new HTMLPurifier_Token_Start($def->info_block_wrapper);
-        $block_wrap_end   = new HTMLPurifier_Token_End(  $def->info_block_wrapper);
-        $is_inline = false;
-        $depth = 0;
-        $ret = array();
-
-        // assuming that there are no comment tokens
-        foreach ($result as $i => $token) {
-            $token = $result[$i];
-            // ifs are nested for readability
-            if (!$is_inline) {
-                if (!$depth) {
-                     if (
-                        ($token instanceof HTMLPurifier_Token_Text && !$token->is_whitespace) ||
-                        (!$token instanceof HTMLPurifier_Token_Text && !isset($this->elements[$token->name]))
-                     ) {
-                        $is_inline = true;
-                        $ret[] = $block_wrap_start;
-                     }
-                }
-            } else {
-                if (!$depth) {
-                    // starting tokens have been inline text / empty
-                    if ($token instanceof HTMLPurifier_Token_Start || $token instanceof HTMLPurifier_Token_Empty) {
-                        if (isset($this->elements[$token->name])) {
-                            // ended
-                            $ret[] = $block_wrap_end;
-                            $is_inline = false;
-                        }
-                    }
-                }
-            }
-            $ret[] = $token;
-            if ($token instanceof HTMLPurifier_Token_Start) $depth++;
-            if ($token instanceof HTMLPurifier_Token_End)   $depth--;
-        }
-        if ($is_inline) $ret[] = $block_wrap_end;
-        return $ret;
-    }
-
-    private function init($config) {
-        if (!$this->init) {
-            $def = $config->getHTMLDefinition();
-            // allow all inline elements
-            $this->real_elements = $this->elements;
-            $this->fake_elements = $def->info_content_sets['Flow'];
-            $this->fake_elements['#PCDATA'] = true;
-            $this->init = true;
-        }
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/ChildDef/Table.php

@@ -1,142 +0,0 @@
-<?php
-
-/**
- * Definition for tables
- */
-class HTMLPurifier_ChildDef_Table extends HTMLPurifier_ChildDef
-{
-    public $allow_empty = false;
-    public $type = 'table';
-    public $elements = array('tr' => true, 'tbody' => true, 'thead' => true,
-        'tfoot' => true, 'caption' => true, 'colgroup' => true, 'col' => true);
-    public function __construct() {}
-    public function validateChildren($tokens_of_children, $config, $context) {
-        if (empty($tokens_of_children)) return false;
-
-        // this ensures that the loop gets run one last time before closing
-        // up. It's a little bit of a hack, but it works! Just make sure you
-        // get rid of the token later.
-        $tokens_of_children[] = false;
-
-        // only one of these elements is allowed in a table
-        $caption = false;
-        $thead   = false;
-        $tfoot   = false;
-
-        // as many of these as you want
-        $cols    = array();
-        $content = array();
-
-        $nesting = 0; // current depth so we can determine nodes
-        $is_collecting = false; // are we globbing together tokens to package
-                                // into one of the collectors?
-        $collection = array(); // collected nodes
-        $tag_index = 0; // the first node might be whitespace,
-                            // so this tells us where the start tag is
-
-        foreach ($tokens_of_children as $token) {
-            $is_child = ($nesting == 0);
-
-            if ($token === false) {
-                // terminating sequence started
-            } elseif ($token instanceof HTMLPurifier_Token_Start) {
-                $nesting++;
-            } elseif ($token instanceof HTMLPurifier_Token_End) {
-                $nesting--;
-            }
-
-            // handle node collection
-            if ($is_collecting) {
-                if ($is_child) {
-                    // okay, let's stash the tokens away
-                    // first token tells us the type of the collection
-                    switch ($collection[$tag_index]->name) {
-                        case 'tr':
-                        case 'tbody':
-                            $content[] = $collection;
-                            break;
-                        case 'caption':
-                            if ($caption !== false) break;
-                            $caption = $collection;
-                            break;
-                        case 'thead':
-                        case 'tfoot':
-                            // access the appropriate variable, $thead or $tfoot
-                            $var = $collection[$tag_index]->name;
-                            if ($$var === false) {
-                                $$var = $collection;
-                            } else {
-                                // transmutate the first and less entries into
-                                // tbody tags, and then put into content
-                                $collection[$tag_index]->name = 'tbody';
-                                $collection[count($collection)-1]->name = 'tbody';
-                                $content[] = $collection;
-                            }
-                            break;
-                         case 'colgroup':
-                            $cols[] = $collection;
-                            break;
-                    }
-                    $collection = array();
-                    $is_collecting = false;
-                    $tag_index = 0;
-                } else {
-                    // add the node to the collection
-                    $collection[] = $token;
-                }
-            }
-
-            // terminate
-            if ($token === false) break;
-
-            if ($is_child) {
-                // determine what we're dealing with
-                if ($token->name == 'col') {
-                    // the only empty tag in the possie, we can handle it
-                    // immediately
-                    $cols[] = array_merge($collection, array($token));
-                    $collection = array();
-                    $tag_index = 0;
-                    continue;
-                }
-                switch($token->name) {
-                    case 'caption':
-                    case 'colgroup':
-                    case 'thead':
-                    case 'tfoot':
-                    case 'tbody':
-                    case 'tr':
-                        $is_collecting = true;
-                        $collection[] = $token;
-                        continue;
-                    default:
-                        if (!empty($token->is_whitespace)) {
-                            $collection[] = $token;
-                            $tag_index++;
-                        }
-                        continue;
-                }
-            }
-        }
-
-        if (empty($content)) return false;
-
-        $ret = array();
-        if ($caption !== false) $ret = array_merge($ret, $caption);
-        if ($cols !== false)    foreach ($cols as $token_array) $ret = array_merge($ret, $token_array);
-        if ($thead !== false)   $ret = array_merge($ret, $thead);
-        if ($tfoot !== false)   $ret = array_merge($ret, $tfoot);
-        foreach ($content as $token_array) $ret = array_merge($ret, $token_array);
-        if (!empty($collection) && $is_collecting == false){
-            // grab the trailing space
-            $ret = array_merge($ret, $collection);
-        }
-
-        array_pop($tokens_of_children); // remove phantom token
-
-        return ($ret === $tokens_of_children) ? true : $ret;
-
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Config.php

@@ -1,580 +0,0 @@
-<?php
-
-/**
- * Configuration object that triggers customizable behavior.
- *
- * @warning This class is strongly defined: that means that the class
- *          will fail if an undefined directive is retrieved or set.
- *
- * @note Many classes that could (although many times don't) use the
- *       configuration object make it a mandatory parameter.  This is
- *       because a configuration object should always be forwarded,
- *       otherwise, you run the risk of missing a parameter and then
- *       being stumped when a configuration directive doesn't work.
- *
- * @todo Reconsider some of the public member variables
- */
-class HTMLPurifier_Config
-{
-
-    /**
-     * HTML Purifier's version
-     */
-    public $version = '4.1.1';
-
-    /**
-     * Bool indicator whether or not to automatically finalize
-     * the object if a read operation is done
-     */
-    public $autoFinalize = true;
-
-    // protected member variables
-
-    /**
-     * Namespace indexed array of serials for specific namespaces (see
-     * getSerial() for more info).
-     */
-    protected $serials = array();
-
-    /**
-     * Serial for entire configuration object
-     */
-    protected $serial;
-
-    /**
-     * Parser for variables
-     */
-    protected $parser;
-
-    /**
-     * Reference HTMLPurifier_ConfigSchema for value checking
-     * @note This is public for introspective purposes. Please don't
-     *       abuse!
-     */
-    public $def;
-
-    /**
-     * Indexed array of definitions
-     */
-    protected $definitions;
-
-    /**
-     * Bool indicator whether or not config is finalized
-     */
-    protected $finalized = false;
-
-    /**
-     * Property list containing configuration directives.
-     */
-    protected $plist;
-
-    /**
-     * Whether or not a set is taking place due to an
-     * alias lookup.
-     */
-    private $aliasMode;
-
-    /**
-     * Set to false if you do not want line and file numbers in errors
-     * (useful when unit testing)
-     */
-    public $chatty = true;
-
-    /**
-     * Current lock; only gets to this namespace are allowed.
-     */
-    private $lock;
-
-    /**
-     * @param $definition HTMLPurifier_ConfigSchema that defines what directives
-     *                    are allowed.
-     */
-    public function __construct($definition, $parent = null) {
-        $parent = $parent ? $parent : $definition->defaultPlist;
-        $this->plist = new HTMLPurifier_PropertyList($parent);
-        $this->def = $definition; // keep a copy around for checking
-        $this->parser = new HTMLPurifier_VarParser_Flexible();
-    }
-
-    /**
-     * Convenience constructor that creates a config object based on a mixed var
-     * @param mixed $config Variable that defines the state of the config
-     *                      object. Can be: a HTMLPurifier_Config() object,
-     *                      an array of directives based on loadArray(),
-     *                      or a string filename of an ini file.
-     * @param HTMLPurifier_ConfigSchema Schema object
-     * @return Configured HTMLPurifier_Config object
-     */
-    public static function create($config, $schema = null) {
-        if ($config instanceof HTMLPurifier_Config) {
-            // pass-through
-            return $config;
-        }
-        if (!$schema) {
-            $ret = HTMLPurifier_Config::createDefault();
-        } else {
-            $ret = new HTMLPurifier_Config($schema);
-        }
-        if (is_string($config)) $ret->loadIni($config);
-        elseif (is_array($config)) $ret->loadArray($config);
-        return $ret;
-    }
-
-    /**
-     * Creates a new config object that inherits from a previous one.
-     * @param HTMLPurifier_Config $config Configuration object to inherit
-     *        from.
-     * @return HTMLPurifier_Config object with $config as its parent.
-     */
-    public static function inherit(HTMLPurifier_Config $config) {
-        return new HTMLPurifier_Config($config->def, $config->plist);
-    }
-
-    /**
-     * Convenience constructor that creates a default configuration object.
-     * @return Default HTMLPurifier_Config object.
-     */
-    public static function createDefault() {
-        $definition = HTMLPurifier_ConfigSchema::instance();
-        $config = new HTMLPurifier_Config($definition);
-        return $config;
-    }
-
-    /**
-     * Retreives a value from the configuration.
-     * @param $key String key
-     */
-    public function get($key, $a = null) {
-        if ($a !== null) {
-            $this->triggerError("Using deprecated API: use \$config->get('$key.$a') instead", E_USER_WARNING);
-            $key = "$key.$a";
-        }
-        if (!$this->finalized) $this->autoFinalize();
-        if (!isset($this->def->info[$key])) {
-            // can't add % due to SimpleTest bug
-            $this->triggerError('Cannot retrieve value of undefined directive ' . htmlspecialchars($key),
-                E_USER_WARNING);
-            return;
-        }
-        if (isset($this->def->info[$key]->isAlias)) {
-            $d = $this->def->info[$key];
-            $this->triggerError('Cannot get value from aliased directive, use real name ' . $d->key,
-                E_USER_ERROR);
-            return;
-        }
-        if ($this->lock) {
-            list($ns) = explode('.', $key);
-            if ($ns !== $this->lock) {
-                $this->triggerError('Cannot get value of namespace ' . $ns . ' when lock for ' . $this->lock . ' is active, this probably indicates a Definition setup method is accessing directives that are not within its namespace', E_USER_ERROR);
-                return;
-            }
-        }
-        return $this->plist->get($key);
-    }
-
-    /**
-     * Retreives an array of directives to values from a given namespace
-     * @param $namespace String namespace
-     */
-    public function getBatch($namespace) {
-        if (!$this->finalized) $this->autoFinalize();
-        $full = $this->getAll();
-        if (!isset($full[$namespace])) {
-            $this->triggerError('Cannot retrieve undefined namespace ' . htmlspecialchars($namespace),
-                E_USER_WARNING);
-            return;
-        }
-        return $full[$namespace];
-    }
-
-    /**
-     * Returns a md5 signature of a segment of the configuration object
-     * that uniquely identifies that particular configuration
-     * @note Revision is handled specially and is removed from the batch
-     *       before processing!
-     * @param $namespace Namespace to get serial for
-     */
-    public function getBatchSerial($namespace) {
-        if (empty($this->serials[$namespace])) {
-            $batch = $this->getBatch($namespace);
-            unset($batch['DefinitionRev']);
-            $this->serials[$namespace] = md5(serialize($batch));
-        }
-        return $this->serials[$namespace];
-    }
-
-    /**
-     * Returns a md5 signature for the entire configuration object
-     * that uniquely identifies that particular configuration
-     */
-    public function getSerial() {
-        if (empty($this->serial)) {
-            $this->serial = md5(serialize($this->getAll()));
-        }
-        return $this->serial;
-    }
-
-    /**
-     * Retrieves all directives, organized by namespace
-     * @warning This is a pretty inefficient function, avoid if you can
-     */
-    public function getAll() {
-        if (!$this->finalized) $this->autoFinalize();
-        $ret = array();
-        foreach ($this->plist->squash() as $name => $value) {
-            list($ns, $key) = explode('.', $name, 2);
-            $ret[$ns][$key] = $value;
-        }
-        return $ret;
-    }
-
-    /**
-     * Sets a value to configuration.
-     * @param $key String key
-     * @param $value Mixed value
-     */
-    public function set($key, $value, $a = null) {
-        if (strpos($key, '.') === false) {
-            $namespace = $key;
-            $directive = $value;
-            $value = $a;
-            $key = "$key.$directive";
-            $this->triggerError("Using deprecated API: use \$config->set('$key', ...) instead", E_USER_NOTICE);
-        } else {
-            list($namespace) = explode('.', $key);
-        }
-        if ($this->isFinalized('Cannot set directive after finalization')) return;
-        if (!isset($this->def->info[$key])) {
-            $this->triggerError('Cannot set undefined directive ' . htmlspecialchars($key) . ' to value',
-                E_USER_WARNING);
-            return;
-        }
-        $def = $this->def->info[$key];
-
-        if (isset($def->isAlias)) {
-            if ($this->aliasMode) {
-                $this->triggerError('Double-aliases not allowed, please fix '.
-                    'ConfigSchema bug with' . $key, E_USER_ERROR);
-                return;
-            }
-            $this->aliasMode = true;
-            $this->set($def->key, $value);
-            $this->aliasMode = false;
-            $this->triggerError("$key is an alias, preferred directive name is {$def->key}", E_USER_NOTICE);
-            return;
-        }
-
-        // Raw type might be negative when using the fully optimized form
-        // of stdclass, which indicates allow_null == true
-        $rtype = is_int($def) ? $def : $def->type;
-        if ($rtype < 0) {
-            $type = -$rtype;
-            $allow_null = true;
-        } else {
-            $type = $rtype;
-            $allow_null = isset($def->allow_null);
-        }
-
-        try {
-            $value = $this->parser->parse($value, $type, $allow_null);
-        } catch (HTMLPurifier_VarParserException $e) {
-            $this->triggerError('Value for ' . $key . ' is of invalid type, should be ' . HTMLPurifier_VarParser::getTypeName($type), E_USER_WARNING);
-            return;
-        }
-        if (is_string($value) && is_object($def)) {
-            // resolve value alias if defined
-            if (isset($def->aliases[$value])) {
-                $value = $def->aliases[$value];
-            }
-            // check to see if the value is allowed
-            if (isset($def->allowed) && !isset($def->allowed[$value])) {
-                $this->triggerError('Value not supported, valid values are: ' .
-                    $this->_listify($def->allowed), E_USER_WARNING);
-                return;
-            }
-        }
-        $this->plist->set($key, $value);
-
-        // reset definitions if the directives they depend on changed
-        // this is a very costly process, so it's discouraged
-        // with finalization
-        if ($namespace == 'HTML' || $namespace == 'CSS' || $namespace == 'URI') {
-            $this->definitions[$namespace] = null;
-        }
-
-        $this->serials[$namespace] = false;
-    }
-
-    /**
-     * Convenience function for error reporting
-     */
-    private function _listify($lookup) {
-        $list = array();
-        foreach ($lookup as $name => $b) $list[] = $name;
-        return implode(', ', $list);
-    }
-
-    /**
-     * Retrieves object reference to the HTML definition.
-     * @param $raw Return a copy that has not been setup yet. Must be
-     *             called before it's been setup, otherwise won't work.
-     */
-    public function getHTMLDefinition($raw = false) {
-        return $this->getDefinition('HTML', $raw);
-    }
-
-    /**
-     * Retrieves object reference to the CSS definition
-     * @param $raw Return a copy that has not been setup yet. Must be
-     *             called before it's been setup, otherwise won't work.
-     */
-    public function getCSSDefinition($raw = false) {
-        return $this->getDefinition('CSS', $raw);
-    }
-
-    /**
-     * Retrieves a definition
-     * @param $type Type of definition: HTML, CSS, etc
-     * @param $raw  Whether or not definition should be returned raw
-     */
-    public function getDefinition($type, $raw = false) {
-        if (!$this->finalized) $this->autoFinalize();
-        // temporarily suspend locks, so we can handle recursive definition calls
-        $lock = $this->lock;
-        $this->lock = null;
-        $factory = HTMLPurifier_DefinitionCacheFactory::instance();
-        $cache = $factory->create($type, $this);
-        $this->lock = $lock;
-        if (!$raw) {
-            // see if we can quickly supply a definition
-            if (!empty($this->definitions[$type])) {
-                if (!$this->definitions[$type]->setup) {
-                    $this->definitions[$type]->setup($this);
-                    $cache->set($this->definitions[$type], $this);
-                }
-                return $this->definitions[$type];
-            }
-            // memory check missed, try cache
-            $this->definitions[$type] = $cache->get($this);
-            if ($this->definitions[$type]) {
-                // definition in cache, return it
-                return $this->definitions[$type];
-            }
-        } elseif (
-            !empty($this->definitions[$type]) &&
-            !$this->definitions[$type]->setup
-        ) {
-            // raw requested, raw in memory, quick return
-            return $this->definitions[$type];
-        }
-        // quick checks failed, let's create the object
-        if ($type == 'HTML') {
-            $this->definitions[$type] = new HTMLPurifier_HTMLDefinition();
-        } elseif ($type == 'CSS') {
-            $this->definitions[$type] = new HTMLPurifier_CSSDefinition();
-        } elseif ($type == 'URI') {
-            $this->definitions[$type] = new HTMLPurifier_URIDefinition();
-        } else {
-            throw new HTMLPurifier_Exception("Definition of $type type not supported");
-        }
-        // quick abort if raw
-        if ($raw) {
-            if (is_null($this->get($type . '.DefinitionID'))) {
-                // fatally error out if definition ID not set
-                throw new HTMLPurifier_Exception("Cannot retrieve raw version without specifying %$type.DefinitionID");
-            }
-            return $this->definitions[$type];
-        }
-        // set it up
-        $this->lock = $type;
-        $this->definitions[$type]->setup($this);
-        $this->lock = null;
-        // save in cache
-        $cache->set($this->definitions[$type], $this);
-        return $this->definitions[$type];
-    }
-
-    /**
-     * Loads configuration values from an array with the following structure:
-     * Namespace.Directive => Value
-     * @param $config_array Configuration associative array
-     */
-    public function loadArray($config_array) {
-        if ($this->isFinalized('Cannot load directives after finalization')) return;
-        foreach ($config_array as $key => $value) {
-            $key = str_replace('_', '.', $key);
-            if (strpos($key, '.') !== false) {
-                $this->set($key, $value);
-            } else {
-                $namespace = $key;
-                $namespace_values = $value;
-                foreach ($namespace_values as $directive => $value) {
-                    $this->set($namespace .'.'. $directive, $value);
-                }
-            }
-        }
-    }
-
-    /**
-     * Returns a list of array(namespace, directive) for all directives
-     * that are allowed in a web-form context as per an allowed
-     * namespaces/directives list.
-     * @param $allowed List of allowed namespaces/directives
-     */
-    public static function getAllowedDirectivesForForm($allowed, $schema = null) {
-        if (!$schema) {
-            $schema = HTMLPurifier_ConfigSchema::instance();
-        }
-        if ($allowed !== true) {
-             if (is_string($allowed)) $allowed = array($allowed);
-             $allowed_ns = array();
-             $allowed_directives = array();
-             $blacklisted_directives = array();
-             foreach ($allowed as $ns_or_directive) {
-                 if (strpos($ns_or_directive, '.') !== false) {
-                     // directive
-                     if ($ns_or_directive[0] == '-') {
-                         $blacklisted_directives[substr($ns_or_directive, 1)] = true;
-                     } else {
-                         $allowed_directives[$ns_or_directive] = true;
-                     }
-                 } else {
-                     // namespace
-                     $allowed_ns[$ns_or_directive] = true;
-                 }
-             }
-        }
-        $ret = array();
-        foreach ($schema->info as $key => $def) {
-            list($ns, $directive) = explode('.', $key, 2);
-            if ($allowed !== true) {
-                if (isset($blacklisted_directives["$ns.$directive"])) continue;
-                if (!isset($allowed_directives["$ns.$directive"]) && !isset($allowed_ns[$ns])) continue;
-            }
-            if (isset($def->isAlias)) continue;
-            if ($directive == 'DefinitionID' || $directive == 'DefinitionRev') continue;
-            $ret[] = array($ns, $directive);
-        }
-        return $ret;
-    }
-
-    /**
-     * Loads configuration values from $_GET/$_POST that were posted
-     * via ConfigForm
-     * @param $array $_GET or $_POST array to import
-     * @param $index Index/name that the config variables are in
-     * @param $allowed List of allowed namespaces/directives
-     * @param $mq_fix Boolean whether or not to enable magic quotes fix
-     * @param $schema Instance of HTMLPurifier_ConfigSchema to use, if not global copy
-     */
-    public static function loadArrayFromForm($array, $index = false, $allowed = true, $mq_fix = true, $schema = null) {
-        $ret = HTMLPurifier_Config::prepareArrayFromForm($array, $index, $allowed, $mq_fix, $schema);
-        $config = HTMLPurifier_Config::create($ret, $schema);
-        return $config;
-    }
-
-    /**
-     * Merges in configuration values from $_GET/$_POST to object. NOT STATIC.
-     * @note Same parameters as loadArrayFromForm
-     */
-    public function mergeArrayFromForm($array, $index = false, $allowed = true, $mq_fix = true) {
-         $ret = HTMLPurifier_Config::prepareArrayFromForm($array, $index, $allowed, $mq_fix, $this->def);
-         $this->loadArray($ret);
-    }
-
-    /**
-     * Prepares an array from a form into something usable for the more
-     * strict parts of HTMLPurifier_Config
-     */
-    public static function prepareArrayFromForm($array, $index = false, $allowed = true, $mq_fix = true, $schema = null) {
-        if ($index !== false) $array = (isset($array[$index]) && is_array($array[$index])) ? $array[$index] : array();
-        $mq = $mq_fix && function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc();
-
-        $allowed = HTMLPurifier_Config::getAllowedDirectivesForForm($allowed, $schema);
-        $ret = array();
-        foreach ($allowed as $key) {
-            list($ns, $directive) = $key;
-            $skey = "$ns.$directive";
-            if (!empty($array["Null_$skey"])) {
-                $ret[$ns][$directive] = null;
-                continue;
-            }
-            if (!isset($array[$skey])) continue;
-            $value = $mq ? stripslashes($array[$skey]) : $array[$skey];
-            $ret[$ns][$directive] = $value;
-        }
-        return $ret;
-    }
-
-    /**
-     * Loads configuration values from an ini file
-     * @param $filename Name of ini file
-     */
-    public function loadIni($filename) {
-        if ($this->isFinalized('Cannot load directives after finalization')) return;
-        $array = parse_ini_file($filename, true);
-        $this->loadArray($array);
-    }
-
-    /**
-     * Checks whether or not the configuration object is finalized.
-     * @param $error String error message, or false for no error
-     */
-    public function isFinalized($error = false) {
-        if ($this->finalized && $error) {
-            $this->triggerError($error, E_USER_ERROR);
-        }
-        return $this->finalized;
-    }
-
-    /**
-     * Finalizes configuration only if auto finalize is on and not
-     * already finalized
-     */
-    public function autoFinalize() {
-        if ($this->autoFinalize) {
-            $this->finalize();
-        } else {
-            $this->plist->squash(true);
-        }
-    }
-
-    /**
-     * Finalizes a configuration object, prohibiting further change
-     */
-    public function finalize() {
-        $this->finalized = true;
-        unset($this->parser);
-    }
-
-    /**
-     * Produces a nicely formatted error message by supplying the
-     * stack frame information from two levels up and OUTSIDE of
-     * HTMLPurifier_Config.
-     */
-    protected function triggerError($msg, $no) {
-        // determine previous stack frame
-        $backtrace = debug_backtrace();
-        if ($this->chatty && isset($backtrace[1])) {
-            $frame = $backtrace[1];
-            $extra = " on line {$frame['line']} in file {$frame['file']}";
-        } else {
-            $extra = '';
-        }
-        trigger_error($msg . $extra, $no);
-    }
-
-    /**
-     * Returns a serialized form of the configuration object that can
-     * be reconstituted.
-     */
-    public function serialize() {
-        $this->getDefinition('HTML');
-        $this->getDefinition('CSS');
-        $this->getDefinition('URI');
-        return serialize($this);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/ConfigSchema/ValidatorAtom.php

@@ -1,66 +0,0 @@
-<?php
-
-/**
- * Fluent interface for validating the contents of member variables.
- * This should be immutable. See HTMLPurifier_ConfigSchema_Validator for
- * use-cases. We name this an 'atom' because it's ONLY for validations that
- * are independent and usually scalar.
- */
-class HTMLPurifier_ConfigSchema_ValidatorAtom
-{
-
-    protected $context, $obj, $member, $contents;
-
-    public function __construct($context, $obj, $member) {
-        $this->context     = $context;
-        $this->obj         = $obj;
-        $this->member      = $member;
-        $this->contents    =& $obj->$member;
-    }
-
-    public function assertIsString() {
-        if (!is_string($this->contents)) $this->error('must be a string');
-        return $this;
-    }
-
-    public function assertIsBool() {
-        if (!is_bool($this->contents)) $this->error('must be a boolean');
-        return $this;
-    }
-
-    public function assertIsArray() {
-        if (!is_array($this->contents)) $this->error('must be an array');
-        return $this;
-    }
-
-    public function assertNotNull() {
-        if ($this->contents === null) $this->error('must not be null');
-        return $this;
-    }
-
-    public function assertAlnum() {
-        $this->assertIsString();
-        if (!ctype_alnum($this->contents)) $this->error('must be alphanumeric');
-        return $this;
-    }
-
-    public function assertNotEmpty() {
-        if (empty($this->contents)) $this->error('must not be empty');
-        return $this;
-    }
-
-    public function assertIsLookup() {
-        $this->assertIsArray();
-        foreach ($this->contents as $v) {
-            if ($v !== true) $this->error('must be a lookup array');
-        }
-        return $this;
-    }
-
-    protected function error($msg) {
-        throw new HTMLPurifier_ConfigSchema_Exception(ucfirst($this->member) . ' in ' . $this->context . ' ' . $msg);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/ConfigSchema/schema/HTML.AllowedElements.txt

@@ -1,18 +0,0 @@
-HTML.AllowedElements
-TYPE: lookup/null
-VERSION: 1.3.0
-DEFAULT: NULL
---DESCRIPTION--
-<p>
-    If HTML Purifier's tag set is unsatisfactory for your needs, you
-    can overload it with your own list of tags to allow.  Note that this
-    method is subtractive: it does its job by taking away from HTML Purifier
-    usual feature set, so you cannot add a tag that HTML Purifier never
-    supported in the first place (like embed, form or head).  If you
-    change this, you probably also want to change %HTML.AllowedAttributes.
-</p>
-<p>
-    <strong>Warning:</strong> If another directive conflicts with the
-    elements here, <em>that</em> directive will win and override.
-</p>
---# vim: et sw=4 sts=4

library/HTMLPurifier/Context.php

@@ -1,82 +0,0 @@
-<?php
-
-/**
- * Registry object that contains information about the current context.
- * @warning Is a bit buggy when variables are set to null: it thinks
- *          they don't exist! So use false instead, please.
- * @note Since the variables Context deals with may not be objects,
- *       references are very important here! Do not remove!
- */
-class HTMLPurifier_Context
-{
-
-    /**
-     * Private array that stores the references.
-     */
-    private $_storage = array();
-
-    /**
-     * Registers a variable into the context.
-     * @param $name String name
-     * @param $ref Reference to variable to be registered
-     */
-    public function register($name, &$ref) {
-        if (isset($this->_storage[$name])) {
-            trigger_error("Name $name produces collision, cannot re-register",
-                          E_USER_ERROR);
-            return;
-        }
-        $this->_storage[$name] =& $ref;
-    }
-
-    /**
-     * Retrieves a variable reference from the context.
-     * @param $name String name
-     * @param $ignore_error Boolean whether or not to ignore error
-     */
-    public function &get($name, $ignore_error = false) {
-        if (!isset($this->_storage[$name])) {
-            if (!$ignore_error) {
-                trigger_error("Attempted to retrieve non-existent variable $name",
-                              E_USER_ERROR);
-            }
-            $var = null; // so we can return by reference
-            return $var;
-        }
-        return $this->_storage[$name];
-    }
-
-    /**
-     * Destorys a variable in the context.
-     * @param $name String name
-     */
-    public function destroy($name) {
-        if (!isset($this->_storage[$name])) {
-            trigger_error("Attempted to destroy non-existent variable $name",
-                          E_USER_ERROR);
-            return;
-        }
-        unset($this->_storage[$name]);
-    }
-
-    /**
-     * Checks whether or not the variable exists.
-     * @param $name String name
-     */
-    public function exists($name) {
-        return isset($this->_storage[$name]);
-    }
-
-    /**
-     * Loads a series of variables from an associative array
-     * @param $context_array Assoc array of variables to load
-     */
-    public function loadArray($context_array) {
-        foreach ($context_array as $key => $discard) {
-            $this->register($key, $context_array[$key]);
-        }
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Definition.php

@@ -1,39 +0,0 @@
-<?php
-
-/**
- * Super-class for definition datatype objects, implements serialization
- * functions for the class.
- */
-abstract class HTMLPurifier_Definition
-{
-
-    /**
-     * Has setup() been called yet?
-     */
-    public $setup = false;
-
-    /**
-     * What type of definition is it?
-     */
-    public $type;
-
-    /**
-     * Sets up the definition object into the final form, something
-     * not done by the constructor
-     * @param $config HTMLPurifier_Config instance
-     */
-    abstract protected function doSetup($config);
-
-    /**
-     * Setup function that aborts if already setup
-     * @param $config HTMLPurifier_Config instance
-     */
-    public function setup($config) {
-        if ($this->setup) return;
-        $this->setup = true;
-        $this->doSetup($config);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/DefinitionCache/Decorator.php

@@ -1,62 +0,0 @@
-<?php
-
-class HTMLPurifier_DefinitionCache_Decorator extends HTMLPurifier_DefinitionCache
-{
-
-    /**
-     * Cache object we are decorating
-     */
-    public $cache;
-
-    public function __construct() {}
-
-    /**
-     * Lazy decorator function
-     * @param $cache Reference to cache object to decorate
-     */
-    public function decorate(&$cache) {
-        $decorator = $this->copy();
-        // reference is necessary for mocks in PHP 4
-        $decorator->cache =& $cache;
-        $decorator->type  = $cache->type;
-        return $decorator;
-    }
-
-    /**
-     * Cross-compatible clone substitute
-     */
-    public function copy() {
-        return new HTMLPurifier_DefinitionCache_Decorator();
-    }
-
-    public function add($def, $config) {
-        return $this->cache->add($def, $config);
-    }
-
-    public function set($def, $config) {
-        return $this->cache->set($def, $config);
-    }
-
-    public function replace($def, $config) {
-        return $this->cache->replace($def, $config);
-    }
-
-    public function get($config) {
-        return $this->cache->get($config);
-    }
-
-    public function remove($config) {
-        return $this->cache->remove($config);
-    }
-
-    public function flush($config) {
-        return $this->cache->flush($config);
-    }
-
-    public function cleanup($config) {
-        return $this->cache->cleanup($config);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/DefinitionCache/Decorator/Cleanup.php

@@ -1,43 +0,0 @@
-<?php
-
-/**
- * Definition cache decorator class that cleans up the cache
- * whenever there is a cache miss.
- */
-class HTMLPurifier_DefinitionCache_Decorator_Cleanup extends
-      HTMLPurifier_DefinitionCache_Decorator
-{
-
-    public $name = 'Cleanup';
-
-    public function copy() {
-        return new HTMLPurifier_DefinitionCache_Decorator_Cleanup();
-    }
-
-    public function add($def, $config) {
-        $status = parent::add($def, $config);
-        if (!$status) parent::cleanup($config);
-        return $status;
-    }
-
-    public function set($def, $config) {
-        $status = parent::set($def, $config);
-        if (!$status) parent::cleanup($config);
-        return $status;
-    }
-
-    public function replace($def, $config) {
-        $status = parent::replace($def, $config);
-        if (!$status) parent::cleanup($config);
-        return $status;
-    }
-
-    public function get($config) {
-        $ret = parent::get($config);
-        if (!$ret) parent::cleanup($config);
-        return $ret;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/DefinitionCache/Decorator/Memory.php

@@ -1,46 +0,0 @@
-<?php
-
-/**
- * Definition cache decorator class that saves all cache retrievals
- * to PHP's memory; good for unit tests or circumstances where
- * there are lots of configuration objects floating around.
- */
-class HTMLPurifier_DefinitionCache_Decorator_Memory extends
-      HTMLPurifier_DefinitionCache_Decorator
-{
-
-    protected $definitions;
-    public $name = 'Memory';
-
-    public function copy() {
-        return new HTMLPurifier_DefinitionCache_Decorator_Memory();
-    }
-
-    public function add($def, $config) {
-        $status = parent::add($def, $config);
-        if ($status) $this->definitions[$this->generateKey($config)] = $def;
-        return $status;
-    }
-
-    public function set($def, $config) {
-        $status = parent::set($def, $config);
-        if ($status) $this->definitions[$this->generateKey($config)] = $def;
-        return $status;
-    }
-
-    public function replace($def, $config) {
-        $status = parent::replace($def, $config);
-        if ($status) $this->definitions[$this->generateKey($config)] = $def;
-        return $status;
-    }
-
-    public function get($config) {
-        $key = $this->generateKey($config);
-        if (isset($this->definitions[$key])) return $this->definitions[$key];
-        $this->definitions[$key] = parent::get($config);
-        return $this->definitions[$key];
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/DefinitionCache/Decorator/Template.php.in

@@ -1,47 +0,0 @@
-<?php
-
-require_once 'HTMLPurifier/DefinitionCache/Decorator.php';
-
-/**
- * Definition cache decorator template.
- */
-class HTMLPurifier_DefinitionCache_Decorator_Template extends
-      HTMLPurifier_DefinitionCache_Decorator
-{
-
-    var $name = 'Template'; // replace this
-
-    function copy() {
-        // replace class name with yours
-        return new HTMLPurifier_DefinitionCache_Decorator_Template();
-    }
-
-    // remove methods you don't need
-
-    function add($def, $config) {
-        return parent::add($def, $config);
-    }
-
-    function set($def, $config) {
-        return parent::set($def, $config);
-    }
-
-    function replace($def, $config) {
-        return parent::replace($def, $config);
-    }
-
-    function get($config) {
-        return parent::get($config);
-    }
-
-    function flush() {
-        return parent::flush();
-    }
-
-    function cleanup($config) {
-        return parent::cleanup($config);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/DefinitionCache/Null.php

@@ -1,39 +0,0 @@
-<?php
-
-/**
- * Null cache object to use when no caching is on.
- */
-class HTMLPurifier_DefinitionCache_Null extends HTMLPurifier_DefinitionCache
-{
-
-    public function add($def, $config) {
-        return false;
-    }
-
-    public function set($def, $config) {
-        return false;
-    }
-
-    public function replace($def, $config) {
-        return false;
-    }
-
-    public function remove($config) {
-        return false;
-    }
-
-    public function get($config) {
-        return false;
-    }
-
-    public function flush($config) {
-        return false;
-    }
-
-    public function cleanup($config) {
-        return false;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/DefinitionCache/Serializer.php

@@ -1,172 +0,0 @@
-<?php
-
-class HTMLPurifier_DefinitionCache_Serializer extends
-      HTMLPurifier_DefinitionCache
-{
-
-    public function add($def, $config) {
-        if (!$this->checkDefType($def)) return;
-        $file = $this->generateFilePath($config);
-        if (file_exists($file)) return false;
-        if (!$this->_prepareDir($config)) return false;
-        return $this->_write($file, serialize($def));
-    }
-
-    public function set($def, $config) {
-        if (!$this->checkDefType($def)) return;
-        $file = $this->generateFilePath($config);
-        if (!$this->_prepareDir($config)) return false;
-        return $this->_write($file, serialize($def));
-    }
-
-    public function replace($def, $config) {
-        if (!$this->checkDefType($def)) return;
-        $file = $this->generateFilePath($config);
-        if (!file_exists($file)) return false;
-        if (!$this->_prepareDir($config)) return false;
-        return $this->_write($file, serialize($def));
-    }
-
-    public function get($config) {
-        $file = $this->generateFilePath($config);
-        if (!file_exists($file)) return false;
-        return unserialize(file_get_contents($file));
-    }
-
-    public function remove($config) {
-        $file = $this->generateFilePath($config);
-        if (!file_exists($file)) return false;
-        return unlink($file);
-    }
-
-    public function flush($config) {
-        if (!$this->_prepareDir($config)) return false;
-        $dir = $this->generateDirectoryPath($config);
-        $dh  = opendir($dir);
-        while (false !== ($filename = readdir($dh))) {
-            if (empty($filename)) continue;
-            if ($filename[0] === '.') continue;
-            unlink($dir . '/' . $filename);
-        }
-    }
-
-    public function cleanup($config) {
-        if (!$this->_prepareDir($config)) return false;
-        $dir = $this->generateDirectoryPath($config);
-        $dh  = opendir($dir);
-        while (false !== ($filename = readdir($dh))) {
-            if (empty($filename)) continue;
-            if ($filename[0] === '.') continue;
-            $key = substr($filename, 0, strlen($filename) - 4);
-            if ($this->isOld($key, $config)) unlink($dir . '/' . $filename);
-        }
-    }
-
-    /**
-     * Generates the file path to the serial file corresponding to
-     * the configuration and definition name
-     * @todo Make protected
-     */
-    public function generateFilePath($config) {
-        $key = $this->generateKey($config);
-        return $this->generateDirectoryPath($config) . '/' . $key . '.ser';
-    }
-
-    /**
-     * Generates the path to the directory contain this cache's serial files
-     * @note No trailing slash
-     * @todo Make protected
-     */
-    public function generateDirectoryPath($config) {
-        $base = $this->generateBaseDirectoryPath($config);
-        return $base . '/' . $this->type;
-    }
-
-    /**
-     * Generates path to base directory that contains all definition type
-     * serials
-     * @todo Make protected
-     */
-    public function generateBaseDirectoryPath($config) {
-        $base = $config->get('Cache.SerializerPath');
-        $base = is_null($base) ? HTMLPURIFIER_PREFIX . '/HTMLPurifier/DefinitionCache/Serializer' : $base;
-        return $base;
-    }
-
-    /**
-     * Convenience wrapper function for file_put_contents
-     * @param $file File name to write to
-     * @param $data Data to write into file
-     * @return Number of bytes written if success, or false if failure.
-     */
-    private function _write($file, $data) {
-        return file_put_contents($file, $data);
-    }
-
-    /**
-     * Prepares the directory that this type stores the serials in
-     * @return True if successful
-     */
-    private function _prepareDir($config) {
-        $directory = $this->generateDirectoryPath($config);
-        if (!is_dir($directory)) {
-            $base = $this->generateBaseDirectoryPath($config);
-            if (!is_dir($base)) {
-                trigger_error('Base directory '.$base.' does not exist,
-                    please create or change using %Cache.SerializerPath',
-                    E_USER_WARNING);
-                return false;
-            } elseif (!$this->_testPermissions($base)) {
-                return false;
-            }
-            $old = umask(0022); // disable group and world writes
-            mkdir($directory);
-            umask($old);
-        } elseif (!$this->_testPermissions($directory)) {
-            return false;
-        }
-        return true;
-    }
-
-    /**
-     * Tests permissions on a directory and throws out friendly
-     * error messages and attempts to chmod it itself if possible
-     */
-    private function _testPermissions($dir) {
-        // early abort, if it is writable, everything is hunky-dory
-        if (is_writable($dir)) return true;
-        if (!is_dir($dir)) {
-            // generally, you'll want to handle this beforehand
-            // so a more specific error message can be given
-            trigger_error('Directory '.$dir.' does not exist',
-                E_USER_WARNING);
-            return false;
-        }
-        if (function_exists('posix_getuid')) {
-            // POSIX system, we can give more specific advice
-            if (fileowner($dir) === posix_getuid()) {
-                // we can chmod it ourselves
-                chmod($dir, 0755);
-                return true;
-            } elseif (filegroup($dir) === posix_getgid()) {
-                $chmod = '775';
-            } else {
-                // PHP's probably running as nobody, so we'll
-                // need to give global permissions
-                $chmod = '777';
-            }
-            trigger_error('Directory '.$dir.' not writable, '.
-                'please chmod to ' . $chmod,
-                E_USER_WARNING);
-        } else {
-            // generic error message
-            trigger_error('Directory '.$dir.' not writable, '.
-                'please alter file permissions',
-                E_USER_WARNING);
-        }
-        return false;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Filter/ExtractStyleBlocks.php

@@ -1,135 +0,0 @@
-<?php
-
-/**
- * This filter extracts <style> blocks from input HTML, cleans them up
- * using CSSTidy, and then places them in $purifier->context->get('StyleBlocks')
- * so they can be used elsewhere in the document.
- *
- * @note
- *      See tests/HTMLPurifier/Filter/ExtractStyleBlocksTest.php for
- *      sample usage.
- *
- * @note
- *      This filter can also be used on stylesheets not included in the
- *      document--something purists would probably prefer. Just directly
- *      call HTMLPurifier_Filter_ExtractStyleBlocks->cleanCSS()
- */
-class HTMLPurifier_Filter_ExtractStyleBlocks extends HTMLPurifier_Filter
-{
-
-    public $name = 'ExtractStyleBlocks';
-    private $_styleMatches = array();
-    private $_tidy;
-
-    public function __construct() {
-        $this->_tidy = new csstidy();
-    }
-
-    /**
-     * Save the contents of CSS blocks to style matches
-     * @param $matches preg_replace style $matches array
-     */
-    protected function styleCallback($matches) {
-        $this->_styleMatches[] = $matches[1];
-    }
-
-    /**
-     * Removes inline <style> tags from HTML, saves them for later use
-     * @todo Extend to indicate non-text/css style blocks
-     */
-    public function preFilter($html, $config, $context) {
-        $tidy = $config->get('Filter.ExtractStyleBlocks.TidyImpl');
-        if ($tidy !== null) $this->_tidy = $tidy;
-        $html = preg_replace_callback('#<style(?:\s.*)?>(.+)</style>#isU', array($this, 'styleCallback'), $html);
-        $style_blocks = $this->_styleMatches;
-        $this->_styleMatches = array(); // reset
-        $context->register('StyleBlocks', $style_blocks); // $context must not be reused
-        if ($this->_tidy) {
-            foreach ($style_blocks as &$style) {
-                $style = $this->cleanCSS($style, $config, $context);
-            }
-        }
-        return $html;
-    }
-
-    /**
-     * Takes CSS (the stuff found in <style>) and cleans it.
-     * @warning Requires CSSTidy <http://csstidy.sourceforge.net/>
-     * @param $css     CSS styling to clean
-     * @param $config  Instance of HTMLPurifier_Config
-     * @param $context Instance of HTMLPurifier_Context
-     * @return Cleaned CSS
-     */
-    public function cleanCSS($css, $config, $context) {
-        // prepare scope
-        $scope = $config->get('Filter.ExtractStyleBlocks.Scope');
-        if ($scope !== null) {
-            $scopes = array_map('trim', explode(',', $scope));
-        } else {
-            $scopes = array();
-        }
-        // remove comments from CSS
-        $css = trim($css);
-        if (strncmp('<!--', $css, 4) === 0) {
-            $css = substr($css, 4);
-        }
-        if (strlen($css) > 3 && substr($css, -3) == '-->') {
-            $css = substr($css, 0, -3);
-        }
-        $css = trim($css);
-        $this->_tidy->parse($css);
-        $css_definition = $config->getDefinition('CSS');
-        foreach ($this->_tidy->css as $k => $decls) {
-            // $decls are all CSS declarations inside an @ selector
-            $new_decls = array();
-            foreach ($decls as $selector => $style) {
-                $selector = trim($selector);
-                if ($selector === '') continue; // should not happen
-                if ($selector[0] === '+') {
-                    if ($selector !== '' && $selector[0] === '+') continue;
-                }
-                if (!empty($scopes)) {
-                    $new_selector = array(); // because multiple ones are possible
-                    $selectors = array_map('trim', explode(',', $selector));
-                    foreach ($scopes as $s1) {
-                        foreach ($selectors as $s2) {
-                            $new_selector[] = "$s1 $s2";
-                        }
-                    }
-                    $selector = implode(', ', $new_selector); // now it's a string
-                }
-                foreach ($style as $name => $value) {
-                    if (!isset($css_definition->info[$name])) {
-                        unset($style[$name]);
-                        continue;
-                    }
-                    $def = $css_definition->info[$name];
-                    $ret = $def->validate($value, $config, $context);
-                    if ($ret === false) unset($style[$name]);
-                    else $style[$name] = $ret;
-                }
-                $new_decls[$selector] = $style;
-            }
-            $this->_tidy->css[$k] = $new_decls;
-        }
-        // remove stuff that shouldn't be used, could be reenabled
-        // after security risks are analyzed
-        $this->_tidy->import = array();
-        $this->_tidy->charset = null;
-        $this->_tidy->namespace = null;
-        $css = $this->_tidy->print->plain();
-        // we are going to escape any special characters <>& to ensure
-        // that no funny business occurs (i.e. </style> in a font-family prop).
-        if ($config->get('Filter.ExtractStyleBlocks.Escaping')) {
-            $css = str_replace(
-                array('<',    '>',    '&'),
-                array('\3C ', '\3E ', '\26 '),
-                $css
-            );
-        }
-        return $css;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Filter/YouTube.php

@@ -1,39 +0,0 @@
-<?php
-
-class HTMLPurifier_Filter_YouTube extends HTMLPurifier_Filter
-{
-
-    public $name = 'YouTube';
-
-    public function preFilter($html, $config, $context) {
-        $pre_regex = '#<object[^>]+>.+?'.
-            'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s';
-        $pre_replace = '<span class="youtube-embed">\1</span>';
-        return preg_replace($pre_regex, $pre_replace, $html);
-    }
-
-    public function postFilter($html, $config, $context) {
-        $post_regex = '#<span class="youtube-embed">((?:v|cp)/[A-Za-z0-9\-_=]+)</span>#';
-        return preg_replace_callback($post_regex, array($this, 'postFilterCallback'), $html);
-    }
-
-    protected function armorUrl($url) {
-        return str_replace('--', '-&#45;', $url);
-    }
-
-    protected function postFilterCallback($matches) {
-        $url = $this->armorUrl($matches[1]);
-        return '<object width="425" height="350" type="application/x-shockwave-flash" '.
-            'data="http://www.youtube.com/'.$url.'">'.
-            '<param name="movie" value="http://www.youtube.com/'.$url.'"></param>'.
-            '<!--[if IE]>'.
-            '<embed src="http://www.youtube.com/'.$url.'"'.
-            'type="application/x-shockwave-flash"'.
-            'wmode="transparent" width="425" height="350" />'.
-            '<![endif]-->'.
-            '</object>';
-
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/HTMLModule/Forms.php

@@ -1,118 +0,0 @@
-<?php
-
-/**
- * XHTML 1.1 Forms module, defines all form-related elements found in HTML 4.
- */
-class HTMLPurifier_HTMLModule_Forms extends HTMLPurifier_HTMLModule
-{
-    public $name = 'Forms';
-    public $safe = false;
-
-    public $content_sets = array(
-        'Block' => 'Form',
-        'Inline' => 'Formctrl',
-    );
-
-    public function setup($config) {
-        $form = $this->addElement('form', 'Form',
-          'Required: Heading | List | Block | fieldset', 'Common', array(
-            'accept' => 'ContentTypes',
-            'accept-charset' => 'Charsets',
-            'action*' => 'URI',
-            'method' => 'Enum#get,post',
-            // really ContentType, but these two are the only ones used today
-            'enctype' => 'Enum#application/x-www-form-urlencoded,multipart/form-data',
-        ));
-        $form->excludes = array('form' => true);
-
-        $input = $this->addElement('input', 'Formctrl', 'Empty', 'Common', array(
-            'accept' => 'ContentTypes',
-            'accesskey' => 'Character',
-            'alt' => 'Text',
-            'checked' => 'Bool#checked',
-            'disabled' => 'Bool#disabled',
-            'maxlength' => 'Number',
-            'name' => 'CDATA',
-            'readonly' => 'Bool#readonly',
-            'size' => 'Number',
-            'src' => 'URI#embeds',
-            'tabindex' => 'Number',
-            'type' => 'Enum#text,password,checkbox,button,radio,submit,reset,file,hidden,image',
-            'value' => 'CDATA',
-        ));
-        $input->attr_transform_post[] = new HTMLPurifier_AttrTransform_Input();
-
-        $this->addElement('select', 'Formctrl', 'Required: optgroup | option', 'Common', array(
-            'disabled' => 'Bool#disabled',
-            'multiple' => 'Bool#multiple',
-            'name' => 'CDATA',
-            'size' => 'Number',
-            'tabindex' => 'Number',
-        ));
-
-        $this->addElement('option', false, 'Optional: #PCDATA', 'Common', array(
-            'disabled' => 'Bool#disabled',
-            'label' => 'Text',
-            'selected' => 'Bool#selected',
-            'value' => 'CDATA',
-        ));
-        // It's illegal for there to be more than one selected, but not
-        // be multiple. Also, no selected means undefined behavior. This might
-        // be difficult to implement; perhaps an injector, or a context variable.
-
-        $textarea = $this->addElement('textarea', 'Formctrl', 'Optional: #PCDATA', 'Common', array(
-            'accesskey' => 'Character',
-            'cols*' => 'Number',
-            'disabled' => 'Bool#disabled',
-            'name' => 'CDATA',
-            'readonly' => 'Bool#readonly',
-            'rows*' => 'Number',
-            'tabindex' => 'Number',
-        ));
-        $textarea->attr_transform_pre[] = new HTMLPurifier_AttrTransform_Textarea();
-
-        $button = $this->addElement('button', 'Formctrl', 'Optional: #PCDATA | Heading | List | Block | Inline', 'Common', array(
-            'accesskey' => 'Character',
-            'disabled' => 'Bool#disabled',
-            'name' => 'CDATA',
-            'tabindex' => 'Number',
-            'type' => 'Enum#button,submit,reset',
-            'value' => 'CDATA',
-        ));
-
-        // For exclusions, ideally we'd specify content sets, not literal elements
-        $button->excludes = $this->makeLookup(
-            'form', 'fieldset', // Form
-            'input', 'select', 'textarea', 'label', 'button', // Formctrl
-            'a' // as per HTML 4.01 spec, this is omitted by modularization
-        );
-
-        // Extra exclusion: img usemap="" is not permitted within this element.
-        // We'll omit this for now, since we don't have any good way of
-        // indicating it yet.
-
-        // This is HIGHLY user-unfriendly; we need a custom child-def for this
-        $this->addElement('fieldset', 'Form', 'Custom: (#WS?,legend,(Flow|#PCDATA)*)', 'Common');
-
-        $label = $this->addElement('label', 'Formctrl', 'Optional: #PCDATA | Inline', 'Common', array(
-            'accesskey' => 'Character',
-            // 'for' => 'IDREF', // IDREF not implemented, cannot allow
-        ));
-        $label->excludes = array('label' => true);
-
-        $this->addElement('legend', false, 'Optional: #PCDATA | Inline', 'Common', array(
-            'accesskey' => 'Character',
-        ));
-
-        $this->addElement('optgroup', false, 'Required: option', 'Common', array(
-            'disabled' => 'Bool#disabled',
-            'label*' => 'Text',
-        ));
-
-        // Don't forget an injector for <isindex>. This one's a little complex
-        // because it maps to multiple elements.
-
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/HTMLModule/Tidy/Strict.php

@@ -1,21 +0,0 @@
-<?php
-
-class HTMLPurifier_HTMLModule_Tidy_Strict extends HTMLPurifier_HTMLModule_Tidy_XHTMLAndHTML4
-{
-    public $name = 'Tidy_Strict';
-    public $defaultLevel = 'light';
-
-    public function makeFixes() {
-        $r = parent::makeFixes();
-        $r['blockquote#content_model_type'] = 'strictblockquote';
-        return $r;
-    }
-
-    public $defines_child_def = true;
-    public function getChildDef($def) {
-        if ($def->content_model_type != 'strictblockquote') return parent::getChildDef($def);
-        return new HTMLPurifier_ChildDef_StrictBlockquote($def->content_model);
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Injector/RemoveEmpty.php

@@ -1,51 +0,0 @@
-<?php
-
-class HTMLPurifier_Injector_RemoveEmpty extends HTMLPurifier_Injector
-{
-
-    private $context, $config, $attrValidator, $removeNbsp, $removeNbspExceptions;
-
-    public function prepare($config, $context) {
-        parent::prepare($config, $context);
-        $this->config = $config;
-        $this->context = $context;
-        $this->removeNbsp = $config->get('AutoFormat.RemoveEmpty.RemoveNbsp');
-        $this->removeNbspExceptions = $config->get('AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions');
-        $this->attrValidator = new HTMLPurifier_AttrValidator();
-    }
-
-    public function handleElement(&$token) {
-        if (!$token instanceof HTMLPurifier_Token_Start) return;
-        $next = false;
-        for ($i = $this->inputIndex + 1, $c = count($this->inputTokens); $i < $c; $i++) {
-            $next = $this->inputTokens[$i];
-            if ($next instanceof HTMLPurifier_Token_Text) {
-                if ($next->is_whitespace) continue;
-                if ($this->removeNbsp && !isset($this->removeNbspExceptions[$token->name])) {
-                    $plain = str_replace("\xC2\xA0", "", $next->data);
-                    $isWsOrNbsp = $plain === '' || ctype_space($plain);
-                    if ($isWsOrNbsp) continue;
-                }
-            }
-            break;
-        }
-        if (!$next || ($next instanceof HTMLPurifier_Token_End && $next->name == $token->name)) {
-            if ($token->name == 'colgroup') return;
-            $this->attrValidator->validateToken($token, $this->config, $this->context);
-            $token->armor['ValidateAttributes'] = true;
-            if (isset($token->attr['id']) || isset($token->attr['name'])) return;
-            $token = $i - $this->inputIndex + 1;
-            for ($b = $this->inputIndex - 1; $b > 0; $b--) {
-                $prev = $this->inputTokens[$b];
-                if ($prev instanceof HTMLPurifier_Token_Text && $prev->is_whitespace) continue;
-                break;
-            }
-            // This is safe because we removed the token that triggered this.
-            $this->rewind($b - 1);
-            return;
-        }
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Language/messages/en.php

@@ -1,63 +0,0 @@
-<?php
-
-$fallback = false;
-
-$messages = array(
-
-'HTMLPurifier' => 'HTML Purifier',
-
-// for unit testing purposes
-'LanguageFactoryTest: Pizza' => 'Pizza',
-'LanguageTest: List' => '$1',
-'LanguageTest: Hash' => '$1.Keys; $1.Values',
-
-'Item separator' => ', ',
-'Item separator last' => ' and ', // non-Harvard style
-
-'ErrorCollector: No errors' => 'No errors detected. However, because error reporting is still incomplete, there may have been errors that the error collector was not notified of; please inspect the output HTML carefully.',
-'ErrorCollector: At line'   => ' at line $line',
-'ErrorCollector: Incidental errors'  => 'Incidental errors',
-
-'Lexer: Unclosed comment'      => 'Unclosed comment',
-'Lexer: Unescaped lt'          => 'Unescaped less-than sign (<) should be &lt;',
-'Lexer: Missing gt'            => 'Missing greater-than sign (>), previous less-than sign (<) should be escaped',
-'Lexer: Missing attribute key' => 'Attribute declaration has no key',
-'Lexer: Missing end quote'     => 'Attribute declaration has no end quote',
-'Lexer: Extracted body'        => 'Removed document metadata tags',
-
-'Strategy_RemoveForeignElements: Tag transform'              => '<$1> element transformed into $CurrentToken.Serialized',
-'Strategy_RemoveForeignElements: Missing required attribute' => '$CurrentToken.Compact element missing required attribute $1',
-'Strategy_RemoveForeignElements: Foreign element to text'    => 'Unrecognized $CurrentToken.Serialized tag converted to text',
-'Strategy_RemoveForeignElements: Foreign element removed'    => 'Unrecognized $CurrentToken.Serialized tag removed',
-'Strategy_RemoveForeignElements: Comment removed'            => 'Comment containing "$CurrentToken.Data" removed',
-'Strategy_RemoveForeignElements: Foreign meta element removed' => 'Unrecognized $CurrentToken.Serialized meta tag and all descendants removed',
-'Strategy_RemoveForeignElements: Token removed to end'       => 'Tags and text starting from $1 element where removed to end',
-'Strategy_RemoveForeignElements: Trailing hyphen in comment removed' => 'Trailing hyphen(s) in comment removed',
-'Strategy_RemoveForeignElements: Hyphens in comment collapsed' => 'Double hyphens in comments are not allowed, and were collapsed into single hyphens',
-
-'Strategy_MakeWellFormed: Unnecessary end tag removed' => 'Unnecessary $CurrentToken.Serialized tag removed',
-'Strategy_MakeWellFormed: Unnecessary end tag to text' => 'Unnecessary $CurrentToken.Serialized tag converted to text',
-'Strategy_MakeWellFormed: Tag auto closed'             => '$1.Compact started on line $1.Line auto-closed by $CurrentToken.Compact',
-'Strategy_MakeWellFormed: Tag carryover'               => '$1.Compact started on line $1.Line auto-continued into $CurrentToken.Compact',
-'Strategy_MakeWellFormed: Stray end tag removed'       => 'Stray $CurrentToken.Serialized tag removed',
-'Strategy_MakeWellFormed: Stray end tag to text'       => 'Stray $CurrentToken.Serialized tag converted to text',
-'Strategy_MakeWellFormed: Tag closed by element end'   => '$1.Compact tag started on line $1.Line closed by end of $CurrentToken.Serialized',
-'Strategy_MakeWellFormed: Tag closed by document end'  => '$1.Compact tag started on line $1.Line closed by end of document',
-
-'Strategy_FixNesting: Node removed'          => '$CurrentToken.Compact node removed',
-'Strategy_FixNesting: Node excluded'         => '$CurrentToken.Compact node removed due to descendant exclusion by ancestor element',
-'Strategy_FixNesting: Node reorganized'      => 'Contents of $CurrentToken.Compact node reorganized to enforce its content model',
-'Strategy_FixNesting: Node contents removed' => 'Contents of $CurrentToken.Compact node removed',
-
-'AttrValidator: Attributes transformed' => 'Attributes on $CurrentToken.Compact transformed from $1.Keys to $2.Keys',
-'AttrValidator: Attribute removed' => '$CurrentAttr.Name attribute on $CurrentToken.Compact removed',
-
-);
-
-$errorNames = array(
-    E_ERROR   => 'Error',
-    E_WARNING => 'Warning',
-    E_NOTICE  => 'Notice'
-);
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Lexer/PEARSax3.php

@@ -1,139 +0,0 @@
-<?php
-
-/**
- * Proof-of-concept lexer that uses the PEAR package XML_HTMLSax3 to parse HTML.
- *
- * PEAR, not suprisingly, also has a SAX parser for HTML.  I don't know
- * very much about implementation, but it's fairly well written.  However, that
- * abstraction comes at a price: performance. You need to have it installed,
- * and if the API changes, it might break our adapter. Not sure whether or not
- * it's UTF-8 aware, but it has some entity parsing trouble (in all areas,
- * text and attributes).
- *
- * Quite personally, I don't recommend using the PEAR class, and the defaults
- * don't use it. The unit tests do perform the tests on the SAX parser too, but
- * whatever it does for poorly formed HTML is up to it.
- *
- * @todo Generalize so that XML_HTMLSax is also supported.
- *
- * @warning Entity-resolution inside attributes is broken.
- */
-
-class HTMLPurifier_Lexer_PEARSax3 extends HTMLPurifier_Lexer
-{
-
-    /**
-     * Internal accumulator array for SAX parsers.
-     */
-    protected $tokens = array();
-    protected $last_token_was_empty;
-
-    private $parent_handler;
-    private $stack = array();
-
-    public function tokenizeHTML($string, $config, $context) {
-
-        $this->tokens = array();
-        $this->last_token_was_empty = false;
-
-        $string = $this->normalize($string, $config, $context);
-
-        $this->parent_handler = set_error_handler(array($this, 'muteStrictErrorHandler'));
-
-        $parser = new XML_HTMLSax3();
-        $parser->set_object($this);
-        $parser->set_element_handler('openHandler','closeHandler');
-        $parser->set_data_handler('dataHandler');
-        $parser->set_escape_handler('escapeHandler');
-
-        // doesn't seem to work correctly for attributes
-        $parser->set_option('XML_OPTION_ENTITIES_PARSED', 1);
-
-        $parser->parse($string);
-
-        restore_error_handler();
-
-        return $this->tokens;
-
-    }
-
-    /**
-     * Open tag event handler, interface is defined by PEAR package.
-     */
-    public function openHandler(&$parser, $name, $attrs, $closed) {
-        // entities are not resolved in attrs
-        foreach ($attrs as $key => $attr) {
-            $attrs[$key] = $this->parseData($attr);
-        }
-        if ($closed) {
-            $this->tokens[] = new HTMLPurifier_Token_Empty($name, $attrs);
-            $this->last_token_was_empty = true;
-        } else {
-            $this->tokens[] = new HTMLPurifier_Token_Start($name, $attrs);
-        }
-        $this->stack[] = $name;
-        return true;
-    }
-
-    /**
-     * Close tag event handler, interface is defined by PEAR package.
-     */
-    public function closeHandler(&$parser, $name) {
-        // HTMLSax3 seems to always send empty tags an extra close tag
-        // check and ignore if you see it:
-        // [TESTME] to make sure it doesn't overreach
-        if ($this->last_token_was_empty) {
-            $this->last_token_was_empty = false;
-            return true;
-        }
-        $this->tokens[] = new HTMLPurifier_Token_End($name);
-        if (!empty($this->stack)) array_pop($this->stack);
-        return true;
-    }
-
-    /**
-     * Data event handler, interface is defined by PEAR package.
-     */
-    public function dataHandler(&$parser, $data) {
-        $this->last_token_was_empty = false;
-        $this->tokens[] = new HTMLPurifier_Token_Text($data);
-        return true;
-    }
-
-    /**
-     * Escaped text handler, interface is defined by PEAR package.
-     */
-    public function escapeHandler(&$parser, $data) {
-        if (strpos($data, '--') === 0) {
-            // remove trailing and leading double-dashes
-            $data = substr($data, 2);
-            if (strlen($data) >= 2 && substr($data, -2) == "--") {
-                $data = substr($data, 0, -2);
-            }
-            if (isset($this->stack[sizeof($this->stack) - 1]) &&
-                $this->stack[sizeof($this->stack) - 1] == "style") {
-                $this->tokens[] = new HTMLPurifier_Token_Text($data);
-            } else {
-                $this->tokens[] = new HTMLPurifier_Token_Comment($data);
-            }
-            $this->last_token_was_empty = false;
-        }
-        // CDATA is handled elsewhere, but if it was handled here:
-        //if (strpos($data, '[CDATA[') === 0) {
-        //    $this->tokens[] = new HTMLPurifier_Token_Text(
-        //        substr($data, 7, strlen($data) - 9) );
-        //}
-        return true;
-    }
-
-    /**
-     * An error handler that mutes strict errors
-     */
-    public function muteStrictErrorHandler($errno, $errstr, $errfile=null, $errline=null, $errcontext=null) {
-        if ($errno == E_STRICT) return;
-        return call_user_func($this->parent_handler, $errno, $errstr, $errfile, $errline, $errcontext);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Strategy/FixNesting.php

@@ -1,328 +0,0 @@
-<?php
-
-/**
- * Takes a well formed list of tokens and fixes their nesting.
- *
- * HTML elements dictate which elements are allowed to be their children,
- * for example, you can't have a p tag in a span tag.  Other elements have
- * much more rigorous definitions: tables, for instance, require a specific
- * order for their elements.  There are also constraints not expressible by
- * document type definitions, such as the chameleon nature of ins/del
- * tags and global child exclusions.
- *
- * The first major objective of this strategy is to iterate through all the
- * nodes (not tokens) of the list of tokens and determine whether or not
- * their children conform to the element's definition.  If they do not, the
- * child definition may optionally supply an amended list of elements that
- * is valid or require that the entire node be deleted (and the previous
- * node rescanned).
- *
- * The second objective is to ensure that explicitly excluded elements of
- * an element do not appear in its children.  Code that accomplishes this
- * task is pervasive through the strategy, though the two are distinct tasks
- * and could, theoretically, be seperated (although it's not recommended).
- *
- * @note Whether or not unrecognized children are silently dropped or
- *       translated into text depends on the child definitions.
- *
- * @todo Enable nodes to be bubbled out of the structure.
- */
-
-class HTMLPurifier_Strategy_FixNesting extends HTMLPurifier_Strategy
-{
-
-    public function execute($tokens, $config, $context) {
-        //####################################################################//
-        // Pre-processing
-
-        // get a copy of the HTML definition
-        $definition = $config->getHTMLDefinition();
-
-        // insert implicit "parent" node, will be removed at end.
-        // DEFINITION CALL
-        $parent_name = $definition->info_parent;
-        array_unshift($tokens, new HTMLPurifier_Token_Start($parent_name));
-        $tokens[] = new HTMLPurifier_Token_End($parent_name);
-
-        // setup the context variable 'IsInline', for chameleon processing
-        // is 'false' when we are not inline, 'true' when it must always
-        // be inline, and an integer when it is inline for a certain
-        // branch of the document tree
-        $is_inline = $definition->info_parent_def->descendants_are_inline;
-        $context->register('IsInline', $is_inline);
-
-        // setup error collector
-        $e =& $context->get('ErrorCollector', true);
-
-        //####################################################################//
-        // Loop initialization
-
-        // stack that contains the indexes of all parents,
-        // $stack[count($stack)-1] being the current parent
-        $stack = array();
-
-        // stack that contains all elements that are excluded
-        // it is organized by parent elements, similar to $stack,
-        // but it is only populated when an element with exclusions is
-        // processed, i.e. there won't be empty exclusions.
-        $exclude_stack = array();
-
-        // variable that contains the start token while we are processing
-        // nodes. This enables error reporting to do its job
-        $start_token = false;
-        $context->register('CurrentToken', $start_token);
-
-        //####################################################################//
-        // Loop
-
-        // iterate through all start nodes. Determining the start node
-        // is complicated so it has been omitted from the loop construct
-        for ($i = 0, $size = count($tokens) ; $i < $size; ) {
-
-            //################################################################//
-            // Gather information on children
-
-            // child token accumulator
-            $child_tokens = array();
-
-            // scroll to the end of this node, report number, and collect
-            // all children
-            for ($j = $i, $depth = 0; ; $j++) {
-                if ($tokens[$j] instanceof HTMLPurifier_Token_Start) {
-                    $depth++;
-                    // skip token assignment on first iteration, this is the
-                    // token we currently are on
-                    if ($depth == 1) continue;
-                } elseif ($tokens[$j] instanceof HTMLPurifier_Token_End) {
-                    $depth--;
-                    // skip token assignment on last iteration, this is the
-                    // end token of the token we're currently on
-                    if ($depth == 0) break;
-                }
-                $child_tokens[] = $tokens[$j];
-            }
-
-            // $i is index of start token
-            // $j is index of end token
-
-            $start_token = $tokens[$i]; // to make token available via CurrentToken
-
-            //################################################################//
-            // Gather information on parent
-
-            // calculate parent information
-            if ($count = count($stack)) {
-                $parent_index = $stack[$count-1];
-                $parent_name  = $tokens[$parent_index]->name;
-                if ($parent_index == 0) {
-                    $parent_def   = $definition->info_parent_def;
-                } else {
-                    $parent_def   = $definition->info[$parent_name];
-                }
-            } else {
-                // processing as if the parent were the "root" node
-                // unknown info, it won't be used anyway, in the future,
-                // we may want to enforce one element only (this is
-                // necessary for HTML Purifier to clean entire documents
-                $parent_index = $parent_name = $parent_def = null;
-            }
-
-            // calculate context
-            if ($is_inline === false) {
-                // check if conditions make it inline
-                if (!empty($parent_def) && $parent_def->descendants_are_inline) {
-                    $is_inline = $count - 1;
-                }
-            } else {
-                // check if we're out of inline
-                if ($count === $is_inline) {
-                    $is_inline = false;
-                }
-            }
-
-            //################################################################//
-            // Determine whether element is explicitly excluded SGML-style
-
-            // determine whether or not element is excluded by checking all
-            // parent exclusions. The array should not be very large, two
-            // elements at most.
-            $excluded = false;
-            if (!empty($exclude_stack)) {
-                foreach ($exclude_stack as $lookup) {
-                    if (isset($lookup[$tokens[$i]->name])) {
-                        $excluded = true;
-                        // no need to continue processing
-                        break;
-                    }
-                }
-            }
-
-            //################################################################//
-            // Perform child validation
-
-            if ($excluded) {
-                // there is an exclusion, remove the entire node
-                $result = false;
-                $excludes = array(); // not used, but good to initialize anyway
-            } else {
-                // DEFINITION CALL
-                if ($i === 0) {
-                    // special processing for the first node
-                    $def = $definition->info_parent_def;
-                } else {
-                    $def = $definition->info[$tokens[$i]->name];
-
-                }
-
-                if (!empty($def->child)) {
-                    // have DTD child def validate children
-                    $result = $def->child->validateChildren(
-                        $child_tokens, $config, $context);
-                } else {
-                    // weird, no child definition, get rid of everything
-                    $result = false;
-                }
-
-                // determine whether or not this element has any exclusions
-                $excludes = $def->excludes;
-            }
-
-            // $result is now a bool or array
-
-            //################################################################//
-            // Process result by interpreting $result
-
-            if ($result === true || $child_tokens === $result) {
-                // leave the node as is
-
-                // register start token as a parental node start
-                $stack[] = $i;
-
-                // register exclusions if there are any
-                if (!empty($excludes)) $exclude_stack[] = $excludes;
-
-                // move cursor to next possible start node
-                $i++;
-
-            } elseif($result === false) {
-                // remove entire node
-
-                if ($e) {
-                    if ($excluded) {
-                        $e->send(E_ERROR, 'Strategy_FixNesting: Node excluded');
-                    } else {
-                        $e->send(E_ERROR, 'Strategy_FixNesting: Node removed');
-                    }
-                }
-
-                // calculate length of inner tokens and current tokens
-                $length = $j - $i + 1;
-
-                // perform removal
-                array_splice($tokens, $i, $length);
-
-                // update size
-                $size -= $length;
-
-                // there is no start token to register,
-                // current node is now the next possible start node
-                // unless it turns out that we need to do a double-check
-
-                // this is a rought heuristic that covers 100% of HTML's
-                // cases and 99% of all other cases. A child definition
-                // that would be tricked by this would be something like:
-                // ( | a b c) where it's all or nothing. Fortunately,
-                // our current implementation claims that that case would
-                // not allow empty, even if it did
-                if (!$parent_def->child->allow_empty) {
-                    // we need to do a double-check
-                    $i = $parent_index;
-                    array_pop($stack);
-                }
-
-                // PROJECTED OPTIMIZATION: Process all children elements before
-                // reprocessing parent node.
-
-            } else {
-                // replace node with $result
-
-                // calculate length of inner tokens
-                $length = $j - $i - 1;
-
-                if ($e) {
-                    if (empty($result) && $length) {
-                        $e->send(E_ERROR, 'Strategy_FixNesting: Node contents removed');
-                    } else {
-                        $e->send(E_WARNING, 'Strategy_FixNesting: Node reorganized');
-                    }
-                }
-
-                // perform replacement
-                array_splice($tokens, $i + 1, $length, $result);
-
-                // update size
-                $size -= $length;
-                $size += count($result);
-
-                // register start token as a parental node start
-                $stack[] = $i;
-
-                // register exclusions if there are any
-                if (!empty($excludes)) $exclude_stack[] = $excludes;
-
-                // move cursor to next possible start node
-                $i++;
-
-            }
-
-            //################################################################//
-            // Scroll to next start node
-
-            // We assume, at this point, that $i is the index of the token
-            // that is the first possible new start point for a node.
-
-            // Test if the token indeed is a start tag, if not, move forward
-            // and test again.
-            $size = count($tokens);
-            while ($i < $size and !$tokens[$i] instanceof HTMLPurifier_Token_Start) {
-                if ($tokens[$i] instanceof HTMLPurifier_Token_End) {
-                    // pop a token index off the stack if we ended a node
-                    array_pop($stack);
-                    // pop an exclusion lookup off exclusion stack if
-                    // we ended node and that node had exclusions
-                    if ($i == 0 || $i == $size - 1) {
-                        // use specialized var if it's the super-parent
-                        $s_excludes = $definition->info_parent_def->excludes;
-                    } else {
-                        $s_excludes = $definition->info[$tokens[$i]->name]->excludes;
-                    }
-                    if ($s_excludes) {
-                        array_pop($exclude_stack);
-                    }
-                }
-                $i++;
-            }
-
-        }
-
-        //####################################################################//
-        // Post-processing
-
-        // remove implicit parent tokens at the beginning and end
-        array_shift($tokens);
-        array_pop($tokens);
-
-        // remove context variables
-        $context->destroy('IsInline');
-        $context->destroy('CurrentToken');
-
-        //####################################################################//
-        // Return
-
-        return $tokens;
-
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Token.php

@@ -1,57 +0,0 @@
-<?php
-
-/**
- * Abstract base token class that all others inherit from.
- */
-class HTMLPurifier_Token {
-    public $line; /**< Line number node was on in source document. Null if unknown. */
-    public $col;  /**< Column of line node was on in source document. Null if unknown. */
-
-    /**
-     * Lookup array of processing that this token is exempt from.
-     * Currently, valid values are "ValidateAttributes" and
-     * "MakeWellFormed_TagClosedError"
-     */
-    public $armor = array();
-
-    /**
-     * Used during MakeWellFormed.
-     */
-    public $skip;
-    public $rewind;
-    public $carryover;
-
-    public function __get($n) {
-      if ($n === 'type') {
-        trigger_error('Deprecated type property called; use instanceof', E_USER_NOTICE);
-        switch (get_class($this)) {
-          case 'HTMLPurifier_Token_Start':      return 'start';
-          case 'HTMLPurifier_Token_Empty':      return 'empty';
-          case 'HTMLPurifier_Token_End':        return 'end';
-          case 'HTMLPurifier_Token_Text':       return 'text';
-          case 'HTMLPurifier_Token_Comment':    return 'comment';
-          default: return null;
-        }
-      }
-    }
-
-    /**
-     * Sets the position of the token in the source document.
-     */
-    public function position($l = null, $c = null) {
-        $this->line = $l;
-        $this->col  = $c;
-    }
-
-    /**
-     * Convenience function for DirectLex settings line/col position.
-     */
-    public function rawPosition($l, $c) {
-        if ($c === -1) $l++;
-        $this->line = $l;
-        $this->col  = $c;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/Token/Comment.php

@@ -1,22 +0,0 @@
-<?php
-
-/**
- * Concrete comment token class. Generally will be ignored.
- */
-class HTMLPurifier_Token_Comment extends HTMLPurifier_Token
-{
-    public $data; /**< Character data within comment. */
-    public $is_whitespace = true;
-    /**
-     * Transparent constructor.
-     *
-     * @param $data String comment data.
-     */
-    public function __construct($data, $line = null, $col = null) {
-        $this->data = $data;
-        $this->line = $line;
-        $this->col  = $col;
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/TokenFactory.php

@@ -1,94 +0,0 @@
-<?php
-
-/**
- * Factory for token generation.
- *
- * @note Doing some benchmarking indicates that the new operator is much
- *       slower than the clone operator (even discounting the cost of the
- *       constructor).  This class is for that optimization.
- *       Other then that, there's not much point as we don't
- *       maintain parallel HTMLPurifier_Token hierarchies (the main reason why
- *       you'd want to use an abstract factory).
- * @todo Port DirectLex to use this
- */
-class HTMLPurifier_TokenFactory
-{
-
-    /**
-     * Prototypes that will be cloned.
-     * @private
-     */
-    // p stands for prototype
-    private $p_start, $p_end, $p_empty, $p_text, $p_comment;
-
-    /**
-     * Generates blank prototypes for cloning.
-     */
-    public function __construct() {
-        $this->p_start  = new HTMLPurifier_Token_Start('', array());
-        $this->p_end    = new HTMLPurifier_Token_End('');
-        $this->p_empty  = new HTMLPurifier_Token_Empty('', array());
-        $this->p_text   = new HTMLPurifier_Token_Text('');
-        $this->p_comment= new HTMLPurifier_Token_Comment('');
-    }
-
-    /**
-     * Creates a HTMLPurifier_Token_Start.
-     * @param $name Tag name
-     * @param $attr Associative array of attributes
-     * @return Generated HTMLPurifier_Token_Start
-     */
-    public function createStart($name, $attr = array()) {
-        $p = clone $this->p_start;
-        $p->__construct($name, $attr);
-        return $p;
-    }
-
-    /**
-     * Creates a HTMLPurifier_Token_End.
-     * @param $name Tag name
-     * @return Generated HTMLPurifier_Token_End
-     */
-    public function createEnd($name) {
-        $p = clone $this->p_end;
-        $p->__construct($name);
-        return $p;
-    }
-
-    /**
-     * Creates a HTMLPurifier_Token_Empty.
-     * @param $name Tag name
-     * @param $attr Associative array of attributes
-     * @return Generated HTMLPurifier_Token_Empty
-     */
-    public function createEmpty($name, $attr = array()) {
-        $p = clone $this->p_empty;
-        $p->__construct($name, $attr);
-        return $p;
-    }
-
-    /**
-     * Creates a HTMLPurifier_Token_Text.
-     * @param $data Data of text token
-     * @return Generated HTMLPurifier_Token_Text
-     */
-    public function createText($data) {
-        $p = clone $this->p_text;
-        $p->__construct($data);
-        return $p;
-    }
-
-    /**
-     * Creates a HTMLPurifier_Token_Comment.
-     * @param $data Data of comment token
-     * @return Generated HTMLPurifier_Token_Comment
-     */
-    public function createComment($data) {
-        $p = clone $this->p_comment;
-        $p->__construct($data);
-        return $p;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/URI.php

@@ -1,173 +0,0 @@
-<?php
-
-/**
- * HTML Purifier's internal representation of a URI.
- * @note
- *      Internal data-structures are completely escaped. If the data needs
- *      to be used in a non-URI context (which is very unlikely), be sure
- *      to decode it first. The URI may not necessarily be well-formed until
- *      validate() is called.
- */
-class HTMLPurifier_URI
-{
-
-    public $scheme, $userinfo, $host, $port, $path, $query, $fragment;
-
-    /**
-     * @note Automatically normalizes scheme and port
-     */
-    public function __construct($scheme, $userinfo, $host, $port, $path, $query, $fragment) {
-        $this->scheme = is_null($scheme) || ctype_lower($scheme) ? $scheme : strtolower($scheme);
-        $this->userinfo = $userinfo;
-        $this->host = $host;
-        $this->port = is_null($port) ? $port : (int) $port;
-        $this->path = $path;
-        $this->query = $query;
-        $this->fragment = $fragment;
-    }
-
-    /**
-     * Retrieves a scheme object corresponding to the URI's scheme/default
-     * @param $config Instance of HTMLPurifier_Config
-     * @param $context Instance of HTMLPurifier_Context
-     * @return Scheme object appropriate for validating this URI
-     */
-    public function getSchemeObj($config, $context) {
-        $registry = HTMLPurifier_URISchemeRegistry::instance();
-        if ($this->scheme !== null) {
-            $scheme_obj = $registry->getScheme($this->scheme, $config, $context);
-            if (!$scheme_obj) return false; // invalid scheme, clean it out
-        } else {
-            // no scheme: retrieve the default one
-            $def = $config->getDefinition('URI');
-            $scheme_obj = $registry->getScheme($def->defaultScheme, $config, $context);
-            if (!$scheme_obj) {
-                // something funky happened to the default scheme object
-                trigger_error(
-                    'Default scheme object "' . $def->defaultScheme . '" was not readable',
-                    E_USER_WARNING
-                );
-                return false;
-            }
-        }
-        return $scheme_obj;
-    }
-
-    /**
-     * Generic validation method applicable for all schemes. May modify
-     * this URI in order to get it into a compliant form.
-     * @param $config Instance of HTMLPurifier_Config
-     * @param $context Instance of HTMLPurifier_Context
-     * @return True if validation/filtering succeeds, false if failure
-     */
-    public function validate($config, $context) {
-
-        // ABNF definitions from RFC 3986
-        $chars_sub_delims = '!$&\'()*+,;=';
-        $chars_gen_delims = ':/?#[]@';
-        $chars_pchar = $chars_sub_delims . ':@';
-
-        // validate scheme (MUST BE FIRST!)
-        if (!is_null($this->scheme) && is_null($this->host)) {
-            $def = $config->getDefinition('URI');
-            if ($def->defaultScheme === $this->scheme) {
-                $this->scheme = null;
-            }
-        }
-
-        // validate host
-        if (!is_null($this->host)) {
-            $host_def = new HTMLPurifier_AttrDef_URI_Host();
-            $this->host = $host_def->validate($this->host, $config, $context);
-            if ($this->host === false) $this->host = null;
-        }
-
-        // validate username
-        if (!is_null($this->userinfo)) {
-            $encoder = new HTMLPurifier_PercentEncoder($chars_sub_delims . ':');
-            $this->userinfo = $encoder->encode($this->userinfo);
-        }
-
-        // validate port
-        if (!is_null($this->port)) {
-            if ($this->port < 1 || $this->port > 65535) $this->port = null;
-        }
-
-        // validate path
-        $path_parts = array();
-        $segments_encoder = new HTMLPurifier_PercentEncoder($chars_pchar . '/');
-        if (!is_null($this->host)) {
-            // path-abempty (hier and relative)
-            $this->path = $segments_encoder->encode($this->path);
-        } elseif ($this->path !== '' && $this->path[0] === '/') {
-            // path-absolute (hier and relative)
-            if (strlen($this->path) >= 2 && $this->path[1] === '/') {
-                // This shouldn't ever happen!
-                $this->path = '';
-            } else {
-                $this->path = $segments_encoder->encode($this->path);
-            }
-        } elseif (!is_null($this->scheme) && $this->path !== '') {
-            // path-rootless (hier)
-            // Short circuit evaluation means we don't need to check nz
-            $this->path = $segments_encoder->encode($this->path);
-        } elseif (is_null($this->scheme) && $this->path !== '') {
-            // path-noscheme (relative)
-            // (once again, not checking nz)
-            $segment_nc_encoder = new HTMLPurifier_PercentEncoder($chars_sub_delims . '@');
-            $c = strpos($this->path, '/');
-            if ($c !== false) {
-                $this->path =
-                    $segment_nc_encoder->encode(substr($this->path, 0, $c)) .
-                    $segments_encoder->encode(substr($this->path, $c));
-            } else {
-                $this->path = $segment_nc_encoder->encode($this->path);
-            }
-        } else {
-            // path-empty (hier and relative)
-            $this->path = ''; // just to be safe
-        }
-
-        // qf = query and fragment
-        $qf_encoder = new HTMLPurifier_PercentEncoder($chars_pchar . '/?');
-
-        if (!is_null($this->query)) {
-            $this->query = $qf_encoder->encode($this->query);
-        }
-
-        if (!is_null($this->fragment)) {
-            $this->fragment = $qf_encoder->encode($this->fragment);
-        }
-
-        return true;
-
-    }
-
-    /**
-     * Convert URI back to string
-     * @return String URI appropriate for output
-     */
-    public function toString() {
-        // reconstruct authority
-        $authority = null;
-        if (!is_null($this->host)) {
-            $authority = '';
-            if(!is_null($this->userinfo)) $authority .= $this->userinfo . '@';
-            $authority .= $this->host;
-            if(!is_null($this->port))     $authority .= ':' . $this->port;
-        }
-
-        // reconstruct the result
-        $result = '';
-        if (!is_null($this->scheme))    $result .= $this->scheme . ':';
-        if (!is_null($authority))       $result .=  '//' . $authority;
-        $result .= $this->path;
-        if (!is_null($this->query))     $result .= '?' . $this->query;
-        if (!is_null($this->fragment))  $result .= '#' . $this->fragment;
-
-        return $result;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/URIFilter.php

@@ -1,45 +0,0 @@
-<?php
-
-/**
- * Chainable filters for custom URI processing.
- *
- * These filters can perform custom actions on a URI filter object,
- * including transformation or blacklisting.
- *
- * @warning This filter is called before scheme object validation occurs.
- *          Make sure, if you require a specific scheme object, you
- *          you check that it exists. This allows filters to convert
- *          proprietary URI schemes into regular ones.
- */
-abstract class HTMLPurifier_URIFilter
-{
-
-    /**
-     * Unique identifier of filter
-     */
-    public $name;
-
-    /**
-     * True if this filter should be run after scheme validation.
-     */
-    public $post = false;
-
-    /**
-     * Performs initialization for the filter
-     */
-    public function prepare($config) {return true;}
-
-    /**
-     * Filter a URI object
-     * @param $uri Reference to URI object variable
-     * @param $config Instance of HTMLPurifier_Config
-     * @param $context Instance of HTMLPurifier_Context
-     * @return bool Whether or not to continue processing: false indicates
-     *         URL is no good, true indicates continue processing. Note that
-     *         all changes are committed directly on the URI object
-     */
-    abstract public function filter(&$uri, $config, $context);
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/URIFilter/DisableExternal.php

@@ -1,23 +0,0 @@
-<?php
-
-class HTMLPurifier_URIFilter_DisableExternal extends HTMLPurifier_URIFilter
-{
-    public $name = 'DisableExternal';
-    protected $ourHostParts = false;
-    public function prepare($config) {
-        $our_host = $config->getDefinition('URI')->host;
-        if ($our_host !== null) $this->ourHostParts = array_reverse(explode('.', $our_host));
-    }
-    public function filter(&$uri, $config, $context) {
-        if (is_null($uri->host)) return true;
-        if ($this->ourHostParts === false) return false;
-        $host_parts = array_reverse(explode('.', $uri->host));
-        foreach ($this->ourHostParts as $i => $x) {
-            if (!isset($host_parts[$i])) return false;
-            if ($host_parts[$i] != $this->ourHostParts[$i]) return false;
-        }
-        return true;
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/URIFilter/DisableExternalResources.php

@@ -1,12 +0,0 @@
-<?php
-
-class HTMLPurifier_URIFilter_DisableExternalResources extends HTMLPurifier_URIFilter_DisableExternal
-{
-    public $name = 'DisableExternalResources';
-    public function filter(&$uri, $config, $context) {
-        if (!$context->get('EmbeddedURI', true)) return true;
-        return parent::filter($uri, $config, $context);
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/URIFilter/HostBlacklist.php

@@ -1,21 +0,0 @@
-<?php
-
-class HTMLPurifier_URIFilter_HostBlacklist extends HTMLPurifier_URIFilter
-{
-    public $name = 'HostBlacklist';
-    protected $blacklist = array();
-    public function prepare($config) {
-        $this->blacklist = $config->get('URI.HostBlacklist');
-        return true;
-    }
-    public function filter(&$uri, $config, $context) {
-        foreach($this->blacklist as $blacklisted_host_fragment) {
-            if (strpos($uri->host, $blacklisted_host_fragment) !== false) {
-                return false;
-            }
-        }
-        return true;
-    }
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/URIFilter/Munge.php

@@ -1,58 +0,0 @@
-<?php
-
-class HTMLPurifier_URIFilter_Munge extends HTMLPurifier_URIFilter
-{
-    public $name = 'Munge';
-    public $post = true;
-    private $target, $parser, $doEmbed, $secretKey;
-
-    protected $replace = array();
-
-    public function prepare($config) {
-        $this->target    = $config->get('URI.' . $this->name);
-        $this->parser    = new HTMLPurifier_URIParser();
-        $this->doEmbed   = $config->get('URI.MungeResources');
-        $this->secretKey = $config->get('URI.MungeSecretKey');
-        return true;
-    }
-    public function filter(&$uri, $config, $context) {
-        if ($context->get('EmbeddedURI', true) && !$this->doEmbed) return true;
-
-        $scheme_obj = $uri->getSchemeObj($config, $context);
-        if (!$scheme_obj) return true; // ignore unknown schemes, maybe another postfilter did it
-        if (is_null($uri->host) || empty($scheme_obj->browsable)) {
-            return true;
-        }
-        // don't redirect if target host is our host
-        if ($uri->host === $config->getDefinition('URI')->host) {
-            return true;
-        }
-
-        $this->makeReplace($uri, $config, $context);
-        $this->replace = array_map('rawurlencode', $this->replace);
-
-        $new_uri = strtr($this->target, $this->replace);
-        $new_uri = $this->parser->parse($new_uri);
-        // don't redirect if the target host is the same as the
-        // starting host
-        if ($uri->host === $new_uri->host) return true;
-        $uri = $new_uri; // overwrite
-        return true;
-    }
-
-    protected function makeReplace($uri, $config, $context) {
-        $string = $uri->toString();
-        // always available
-        $this->replace['%s'] = $string;
-        $this->replace['%r'] = $context->get('EmbeddedURI', true);
-        $token = $context->get('CurrentToken', true);
-        $this->replace['%n'] = $token ? $token->name : null;
-        $this->replace['%m'] = $context->get('CurrentAttr', true);
-        $this->replace['%p'] = $context->get('CurrentCSSProperty', true);
-        // not always available
-        if ($this->secretKey) $this->replace['%t'] = sha1($this->secretKey . ':' . $string);
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/URIScheme.php

@@ -1,42 +0,0 @@
-<?php
-
-/**
- * Validator for the components of a URI for a specific scheme
- */
-class HTMLPurifier_URIScheme
-{
-
-    /**
-     * Scheme's default port (integer)
-     */
-    public $default_port = null;
-
-    /**
-     * Whether or not URIs of this schem are locatable by a browser
-     * http and ftp are accessible, while mailto and news are not.
-     */
-    public $browsable = false;
-
-    /**
-     * Whether or not the URI always uses <hier_part>, resolves edge cases
-     * with making relative URIs absolute
-     */
-    public $hierarchical = false;
-
-    /**
-     * Validates the components of a URI
-     * @note This implementation should be called by children if they define
-     *       a default port, as it does port processing.
-     * @param $uri Instance of HTMLPurifier_URI
-     * @param $config HTMLPurifier_Config object
-     * @param $context HTMLPurifier_Context object
-     * @return Bool success or failure
-     */
-    public function validate(&$uri, $config, $context) {
-        if ($this->default_port == $uri->port) $uri->port = null;
-        return true;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/URIScheme/news.php

@@ -1,22 +0,0 @@
-<?php
-
-/**
- * Validates news (Usenet) as defined by generic RFC 1738
- */
-class HTMLPurifier_URIScheme_news extends HTMLPurifier_URIScheme {
-
-    public $browsable = false;
-
-    public function validate(&$uri, $config, $context) {
-        parent::validate($uri, $config, $context);
-        $uri->userinfo = null;
-        $uri->host     = null;
-        $uri->port     = null;
-        $uri->query    = null;
-        // typecode check needed on path
-        return true;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/URIScheme/nntp.php

@@ -1,20 +0,0 @@
-<?php
-
-/**
- * Validates nntp (Network News Transfer Protocol) as defined by generic RFC 1738
- */
-class HTMLPurifier_URIScheme_nntp extends HTMLPurifier_URIScheme {
-
-    public $default_port = 119;
-    public $browsable = false;
-
-    public function validate(&$uri, $config, $context) {
-        parent::validate($uri, $config, $context);
-        $uri->userinfo = null;
-        $uri->query    = null;
-        return true;
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/HTMLPurifier/VarParser.php

@@ -1,154 +0,0 @@
-<?php
-
-/**
- * Parses string representations into their corresponding native PHP
- * variable type. The base implementation does a simple type-check.
- */
-class HTMLPurifier_VarParser
-{
-
-    const STRING    = 1;
-    const ISTRING   = 2;
-    const TEXT      = 3;
-    const ITEXT     = 4;
-    const INT       = 5;
-    const FLOAT     = 6;
-    const BOOL      = 7;
-    const LOOKUP    = 8;
-    const ALIST     = 9;
-    const HASH      = 10;
-    const MIXED     = 11;
-
-    /**
-     * Lookup table of allowed types. Mainly for backwards compatibility, but
-     * also convenient for transforming string type names to the integer constants.
-     */
-    static public $types = array(
-        'string'    => self::STRING,
-        'istring'   => self::ISTRING,
-        'text'      => self::TEXT,
-        'itext'     => self::ITEXT,
-        'int'       => self::INT,
-        'float'     => self::FLOAT,
-        'bool'      => self::BOOL,
-        'lookup'    => self::LOOKUP,
-        'list'      => self::ALIST,
-        'hash'      => self::HASH,
-        'mixed'     => self::MIXED
-    );
-
-    /**
-     * Lookup table of types that are string, and can have aliases or
-     * allowed value lists.
-     */
-    static public $stringTypes = array(
-        self::STRING    => true,
-        self::ISTRING   => true,
-        self::TEXT      => true,
-        self::ITEXT     => true,
-    );
-
-    /**
-     * Validate a variable according to type. Throws
-     * HTMLPurifier_VarParserException if invalid.
-     * It may return NULL as a valid type if $allow_null is true.
-     *
-     * @param $var Variable to validate
-     * @param $type Type of variable, see HTMLPurifier_VarParser->types
-     * @param $allow_null Whether or not to permit null as a value
-     * @return Validated and type-coerced variable
-     */
-    final public function parse($var, $type, $allow_null = false) {
-        if (is_string($type)) {
-            if (!isset(HTMLPurifier_VarParser::$types[$type])) {
-                throw new HTMLPurifier_VarParserException("Invalid type '$type'");
-            } else {
-                $type = HTMLPurifier_VarParser::$types[$type];
-            }
-        }
-        $var = $this->parseImplementation($var, $type, $allow_null);
-        if ($allow_null && $var === null) return null;
-        // These are basic checks, to make sure nothing horribly wrong
-        // happened in our implementations.
-        switch ($type) {
-            case (self::STRING):
-            case (self::ISTRING):
-            case (self::TEXT):
-            case (self::ITEXT):
-                if (!is_string($var)) break;
-                if ($type == self::ISTRING || $type == self::ITEXT) $var = strtolower($var);
-                return $var;
-            case (self::INT):
-                if (!is_int($var)) break;
-                return $var;
-            case (self::FLOAT):
-                if (!is_float($var)) break;
-                return $var;
-            case (self::BOOL):
-                if (!is_bool($var)) break;
-                return $var;
-            case (self::LOOKUP):
-            case (self::ALIST):
-            case (self::HASH):
-                if (!is_array($var)) break;
-                if ($type === self::LOOKUP) {
-                    foreach ($var as $k) if ($k !== true) $this->error('Lookup table contains value other than true');
-                } elseif ($type === self::ALIST) {
-                    $keys = array_keys($var);
-                    if (array_keys($keys) !== $keys) $this->error('Indices for list are not uniform');
-                }
-                return $var;
-            case (self::MIXED):
-                return $var;
-            default:
-                $this->errorInconsistent(get_class($this), $type);
-        }
-        $this->errorGeneric($var, $type);
-    }
-
-    /**
-     * Actually implements the parsing. Base implementation is to not
-     * do anything to $var. Subclasses should overload this!
-     */
-    protected function parseImplementation($var, $type, $allow_null) {
-        return $var;
-    }
-
-    /**
-     * Throws an exception.
-     */
-    protected function error($msg) {
-        throw new HTMLPurifier_VarParserException($msg);
-    }
-
-    /**
-     * Throws an inconsistency exception.
-     * @note This should not ever be called. It would be called if we
-     *       extend the allowed values of HTMLPurifier_VarParser without
-     *       updating subclasses.
-     */
-    protected function errorInconsistent($class, $type) {
-        throw new HTMLPurifier_Exception("Inconsistency in $class: ".HTMLPurifier_VarParser::getTypeName($type)." not implemented");
-    }
-
-    /**
-     * Generic error for if a type didn't work.
-     */
-    protected function errorGeneric($var, $type) {
-        $vtype = gettype($var);
-        $this->error("Expected type ".HTMLPurifier_VarParser::getTypeName($type).", got $vtype");
-    }
-
-    static public function getTypeName($type) {
-        static $lookup;
-        if (!$lookup) {
-            // Lazy load the alternative lookup table
-            $lookup = array_flip(HTMLPurifier_VarParser::$types);
-        }
-        if (!isset($lookup[$type])) return 'unknown';
-        return $lookup[$type];
-    }
-
-}
-
-// vim: et sw=4 sts=4

library/ezyang/htmlpurifier/CREDITS

@@ -0,0 +1,9 @@
+
+CREDITS
+
+Almost everything written by Edward Z. Yang (Ambush Commander).  Lots of thanks
+to the DevNetwork Community for their help (see docs/ref-devnetwork.html for
+more details), Feyd especially (namely IPv6 and optimization).  Thanks to RSnake
+for letting me package his fantastic XSS cheatsheet for a smoketest.
+
+    vim: et sw=4 sts=4

library/ezyang/htmlpurifier/INSTALL

@@ -0,0 +1,374 @@
+
+Install
+    How to install HTML Purifier
+
+HTML Purifier is designed to run out of the box, so actually using the
+library is extremely easy.  (Although... if you were looking for a
+step-by-step installation GUI, you've downloaded the wrong software!)
+
+While the impatient can get going immediately with some of the sample
+code at the bottom of this library, it's well worth reading this entire
+document--most of the other documentation assumes that you are familiar
+with these contents.
+
+
+---------------------------------------------------------------------------
+1.  Compatibility
+
+HTML Purifier is PHP 5 only, and is actively tested from PHP 5.0.5 and
+up. It has no core dependencies with other libraries. PHP
+4 support was deprecated on December 31, 2007 with HTML Purifier 3.0.0.
+HTML Purifier is not compatible with zend.ze1_compatibility_mode.
+
+These optional extensions can enhance the capabilities of HTML Purifier:
+
+    * iconv  : Converts text to and from non-UTF-8 encodings
+    * bcmath : Used for unit conversion and imagecrash protection
+    * tidy   : Used for pretty-printing HTML
+
+These optional libraries can enhance the capabilities of HTML Purifier:
+
+    * CSSTidy : Clean CSS stylesheets using %Core.ExtractStyleBlocks
+    * Net_IDNA2 (PEAR) : IRI support using %Core.EnableIDNA
+
+---------------------------------------------------------------------------
+2.  Reconnaissance
+
+A big plus of HTML Purifier is its inerrant support of standards, so
+your web-pages should be standards-compliant.  (They should also use
+semantic markup, but that's another issue altogether, one HTML Purifier
+cannot fix without reading your mind.)
+
+HTML Purifier can process these doctypes:
+
+* XHTML 1.0 Transitional (default)
+* XHTML 1.0 Strict
+* HTML 4.01 Transitional
+* HTML 4.01 Strict
+* XHTML 1.1
+
+...and these character encodings:
+
+* UTF-8 (default)
+* Any encoding iconv supports (with crippled internationalization support)
+
+These defaults reflect what my choices would be if I were authoring an
+HTML document, however, what you choose depends on the nature of your
+codebase.  If you don't know what doctype you are using, you can determine
+the doctype from this identifier at the top of your source code:
+
+    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+...and the character encoding from this code:
+
+    <meta http-equiv="Content-type" content="text/html;charset=ENCODING">
+
+If the character encoding declaration is missing, STOP NOW, and
+read 'docs/enduser-utf8.html' (web accessible at
+http://htmlpurifier.org/docs/enduser-utf8.html).  In fact, even if it is
+present, read this document anyway, as many websites specify their
+document's character encoding incorrectly.
+
+
+---------------------------------------------------------------------------
+3.  Including the library
+
+The procedure is quite simple:
+
+    require_once '/path/to/library/HTMLPurifier.auto.php';
+
+This will setup an autoloader, so the library's files are only included
+when you use them.
+
+Only the contents in the library/ folder are necessary, so you can remove
+everything else when using HTML Purifier in a production environment.
+
+If you installed HTML Purifier via PEAR, all you need to do is:
+
+    require_once 'HTMLPurifier.auto.php';
+
+Please note that the usual PEAR practice of including just the classes you
+want will not work with HTML Purifier's autoloading scheme.
+
+Advanced users, read on; other users can skip to section 4.
+
+Autoload compatibility
+----------------------
+
+    HTML Purifier attempts to be as smart as possible when registering an
+    autoloader, but there are some cases where you will need to change
+    your own code to accomodate HTML Purifier. These are those cases:
+
+    PHP VERSION IS LESS THAN 5.1.2, AND YOU'VE DEFINED __autoload
+        Because spl_autoload_register() doesn't exist in early versions
+        of PHP 5, HTML Purifier has no way of adding itself to the autoload
+        stack. Modify your __autoload function to test
+        HTMLPurifier_Bootstrap::autoload($class)
+
+        For example, suppose your autoload function looks like this:
+
+            function __autoload($class) {
+                require str_replace('_', '/', $class) . '.php';
+                return true;
+            }
+
+        A modified version with HTML Purifier would look like this:
+
+            function __autoload($class) {
+                if (HTMLPurifier_Bootstrap::autoload($class)) return true;
+                require str_replace('_', '/', $class) . '.php';
+                return true;
+            }
+
+        Note that there *is* some custom behavior in our autoloader; the
+        original autoloader in our example would work for 99% of the time,
+        but would fail when including language files.
+
+    AN __autoload FUNCTION IS DECLARED AFTER OUR AUTOLOADER IS REGISTERED
+        spl_autoload_register() has the curious behavior of disabling
+        the existing __autoload() handler. Users need to explicitly
+        spl_autoload_register('__autoload'). Because we use SPL when it
+        is available, __autoload() will ALWAYS be disabled. If __autoload()
+        is declared before HTML Purifier is loaded, this is not a problem:
+        HTML Purifier will register the function for you. But if it is
+        declared afterwards, it will mysteriously not work. This
+        snippet of code (after your autoloader is defined) will fix it:
+
+            spl_autoload_register('__autoload')
+
+    Users should also be on guard if they use a version of PHP previous
+    to 5.1.2 without an autoloader--HTML Purifier will define __autoload()
+    for you, which can collide with an autoloader that was added by *you*
+    later.
+
+
+For better performance
+----------------------
+
+    Opcode caches, which greatly speed up PHP initialization for scripts
+    with large amounts of code (HTML Purifier included), don't like
+    autoloaders. We offer an include file that includes all of HTML Purifier's
+    files in one go in an opcode cache friendly manner:
+
+        // If /path/to/library isn't already in your include path, uncomment
+        // the below line:
+        // require '/path/to/library/HTMLPurifier.path.php';
+
+        require 'HTMLPurifier.includes.php';
+
+    Optional components still need to be included--you'll know if you try to
+    use a feature and you get a class doesn't exists error! The autoloader
+    can be used in conjunction with this approach to catch classes that are
+    missing. Simply add this afterwards:
+
+        require 'HTMLPurifier.autoload.php';
+
+Standalone version
+------------------
+
+    HTML Purifier has a standalone distribution; you can also generate
+    a standalone file from the full version by running the script
+    maintenance/generate-standalone.php . The standalone version has the
+    benefit of having most of its code in one file, so parsing is much
+    faster and the library is easier to manage.
+
+    If HTMLPurifier.standalone.php exists in the library directory, you
+    can use it like this:
+
+        require '/path/to/HTMLPurifier.standalone.php';
+
+    This is equivalent to including HTMLPurifier.includes.php, except that
+    the contents of standalone/ will be added to your path. To override this
+    behavior, specify a new HTMLPURIFIER_PREFIX where standalone files can
+    be found (usually, this will be one directory up, the "true" library
+    directory in full distributions). Don't forget to set your path too!
+
+    The autoloader can be added to the end to ensure the classes are
+    loaded when necessary; otherwise you can manually include them.
+    To use the autoloader, use this:
+
+        require 'HTMLPurifier.autoload.php';
+
+For advanced users
+------------------
+
+    HTMLPurifier.auto.php performs a number of operations that can be done
+    individually. These are:
+
+        HTMLPurifier.path.php
+            Puts /path/to/library in the include path. For high performance,
+            this should be done in php.ini.
+
+        HTMLPurifier.autoload.php
+            Registers our autoload handler HTMLPurifier_Bootstrap::autoload($class).
+
+    You can do these operations by yourself--in fact, you must modify your own
+    autoload handler if you are using a version of PHP earlier than PHP 5.1.2
+    (See "Autoload compatibility" above).
+
+
+---------------------------------------------------------------------------
+4. Configuration
+
+HTML Purifier is designed to run out-of-the-box, but occasionally HTML
+Purifier needs to be told what to do.  If you answer no to any of these
+questions, read on; otherwise, you can skip to the next section (or, if you're
+into configuring things just for the heck of it, skip to 4.3).
+
+* Am I using UTF-8?
+* Am I using XHTML 1.0 Transitional?
+
+If you answered no to any of these questions, instantiate a configuration
+object and read on:
+
+    $config = HTMLPurifier_Config::createDefault();
+
+
+4.1. Setting a different character encoding
+
+You really shouldn't use any other encoding except UTF-8, especially if you
+plan to support multilingual websites (read section three for more details).
+However, switching to UTF-8 is not always immediately feasible, so we can
+adapt.
+
+HTML Purifier uses iconv to support other character encodings, as such,
+any encoding that iconv supports <http://www.gnu.org/software/libiconv/>
+HTML Purifier supports with this code:
+
+    $config->set('Core.Encoding', /* put your encoding here */);
+
+An example usage for Latin-1 websites (the most common encoding for English
+websites):
+
+    $config->set('Core.Encoding', 'ISO-8859-1');
+
+Note that HTML Purifier's support for non-Unicode encodings is crippled by the
+fact that any character not supported by that encoding will be silently
+dropped, EVEN if it is ampersand escaped.  If you want to work around
+this, you are welcome to read docs/enduser-utf8.html for a fix,
+but please be cognizant of the issues the "solution" creates (for this
+reason, I do not include the solution in this document).
+
+
+4.2. Setting a different doctype
+
+For those of you using HTML 4.01 Transitional, you can disable
+XHTML output like this:
+
+    $config->set('HTML.Doctype', 'HTML 4.01 Transitional');
+
+Other supported doctypes include:
+
+    * HTML 4.01 Strict
+    * HTML 4.01 Transitional
+    * XHTML 1.0 Strict
+    * XHTML 1.0 Transitional
+    * XHTML 1.1
+
+
+4.3. Other settings
+
+There are more configuration directives which can be read about
+here: <http://htmlpurifier.org/live/configdoc/plain.html>  They're a bit boring,
+but they can help out for those of you who like to exert maximum control over
+your code.  Some of the more interesting ones are configurable at the
+demo <http://htmlpurifier.org/demo.php> and are well worth looking into
+for your own system.
+
+For example, you can fine tune allowed elements and attributes, convert
+relative URLs to absolute ones, and even autoparagraph input text! These
+are, respectively, %HTML.Allowed, %URI.MakeAbsolute and %URI.Base, and
+%AutoFormat.AutoParagraph. The %Namespace.Directive naming convention
+translates to:
+
+    $config->set('Namespace.Directive', $value);
+
+E.g.
+
+    $config->set('HTML.Allowed', 'p,b,a[href],i');
+    $config->set('URI.Base', 'http://www.example.com');
+    $config->set('URI.MakeAbsolute', true);
+    $config->set('AutoFormat.AutoParagraph', true);
+
+
+---------------------------------------------------------------------------
+5. Caching
+
+HTML Purifier generates some cache files (generally one or two) to speed up
+its execution. For maximum performance, make sure that
+library/HTMLPurifier/DefinitionCache/Serializer is writeable by the webserver.
+
+If you are in the library/ folder of HTML Purifier, you can set the
+appropriate permissions using:
+
+    chmod -R 0755 HTMLPurifier/DefinitionCache/Serializer
+
+If the above command doesn't work, you may need to assign write permissions
+to all. This may be necessary if your webserver runs as nobody, but is
+not recommended since it means any other user can write files in the
+directory. Use:
+
+    chmod -R 0777 HTMLPurifier/DefinitionCache/Serializer
+
+You can also chmod files via your FTP client; this option
+is usually accessible by right clicking the corresponding directory and
+then selecting "chmod" or "file permissions".
+
+Starting with 2.0.1, HTML Purifier will generate friendly error messages
+that will tell you exactly what you have to chmod the directory to, if in doubt,
+follow its advice.
+
+If you are unable or unwilling to give write permissions to the cache
+directory, you can either disable the cache (and suffer a performance
+hit):
+
+    $config->set('Core.DefinitionCache', null);
+
+Or move the cache directory somewhere else (no trailing slash):
+
+    $config->set('Cache.SerializerPath', '/home/user/absolute/path');
+
+
+---------------------------------------------------------------------------
+6.   Using the code
+
+The interface is mind-numbingly simple:
+
+    $purifier = new HTMLPurifier($config);
+    $clean_html = $purifier->purify( $dirty_html );
+
+That's it!  For more examples, check out docs/examples/ (they aren't very
+different though).  Also, docs/enduser-slow.html gives advice on what to
+do if HTML Purifier is slowing down your application.
+
+
+---------------------------------------------------------------------------
+7.   Quick install
+
+First, make sure library/HTMLPurifier/DefinitionCache/Serializer is
+writable by the webserver (see Section 5: Caching above for details).
+If your website is in UTF-8 and XHTML Transitional, use this code:
+
+<?php
+    require_once '/path/to/htmlpurifier/library/HTMLPurifier.auto.php';
+
+    $config = HTMLPurifier_Config::createDefault();
+    $purifier = new HTMLPurifier($config);
+    $clean_html = $purifier->purify($dirty_html);
+?>
+
+If your website is in a different encoding or doctype, use this code:
+
+<?php
+    require_once '/path/to/htmlpurifier/library/HTMLPurifier.auto.php';
+
+    $config = HTMLPurifier_Config::createDefault();
+    $config->set('Core.Encoding', 'ISO-8859-1'); // replace with your encoding
+    $config->set('HTML.Doctype', 'HTML 4.01 Transitional'); // replace with your doctype
+    $purifier = new HTMLPurifier($config);
+
+    $clean_html = $purifier->purify($dirty_html);
+?>
+
+    vim: et sw=4 sts=4

library/ezyang/htmlpurifier/INSTALL.fr.utf8

@@ -0,0 +1,60 @@
+
+Installation
+    Comment installer HTML Purifier
+
+Attention : Ce document est encodé en UTF-8, si les lettres avec des accents
+ne s'affichent pas, prenez un meilleur éditeur de texte.
+
+L'installation de HTML Purifier est très simple, parce qu'il n'a pas besoin
+de configuration. Pour les utilisateurs impatients, le code se trouve dans le
+pied de page, mais je recommande de lire le document.
+
+1.  Compatibilité
+
+HTML Purifier fonctionne avec PHP 5. PHP 5.0.5 est la dernière version testée.
+Il ne dépend pas d'autres librairies.
+
+Les extensions optionnelles sont iconv (généralement déjà installée) et tidy
+(répendue aussi). Si vous utilisez UTF-8 et que vous ne voulez pas l'indentation,
+vous pouvez utiliser HTML Purifier sans ces extensions.
+
+
+2.  Inclure la librairie
+
+Quand vous devez l'utilisez, incluez le :
+
+    require_once('/path/to/library/HTMLPurifier.auto.php');
+
+Ne pas l'inclure si ce n'est pas nécessaire, car HTML Purifier est lourd.
+
+HTML Purifier utilise "autoload". Si vous avez défini la fonction __autoload,
+vous devez ajouter cette fonction :
+
+    spl_autoload_register('__autoload')
+
+Plus d'informations dans le document "INSTALL".
+
+3.  Installation rapide
+
+Si votre site Web est en UTF-8 et XHTML Transitional, utilisez :
+
+<?php
+    require_once('/path/to/htmlpurifier/library/HTMLPurifier.auto.php');
+    $purificateur = new HTMLPurifier();
+    $html_propre = $purificateur->purify($html_a_purifier);
+?>
+
+Sinon, utilisez :
+
+<?php
+    require_once('/path/to/html/purifier/library/HTMLPurifier.auto.load');
+    $config = $HTMLPurifier_Config::createDefault();
+    $config->set('Core', 'Encoding', 'ISO-8859-1'); //Remplacez par votre
+    encodage
+    $config->set('Core', 'XHTML', true); //Remplacer par false si HTML 4.01
+    $purificateur = new HTMLPurifier($config);
+    $html_propre = $purificateur->purify($html_a_purifier);
+?>
+
+
+    vim: et sw=4 sts=4

library/ezyang/htmlpurifier/LICENSE

@@ -0,0 +1,504 @@
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
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+FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+           How to Apply These Terms to Your New Libraries
+
+  If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change.  You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+  To apply these terms, attach the following notices to the library.  It is
+safest to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the library's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
+
+    vim: et sw=4 sts=4

library/ezyang/htmlpurifier/README

@@ -0,0 +1,24 @@
+
+README
+    All about HTML Purifier
+
+HTML Purifier is an HTML filtering solution that uses a unique combination
+of robust whitelists and agressive parsing to ensure that not only are
+XSS attacks thwarted, but the resulting HTML is standards compliant.
+
+HTML Purifier is oriented towards richly formatted documents from
+untrusted sources that require CSS and a full tag-set.  This library can
+be configured to accept a more restrictive set of tags, but it won't be
+as efficient as more bare-bones parsers. It will, however, do the job
+right, which may be more important.
+
+Places to go:
+
+* See INSTALL for a quick installation guide
+* See docs/ for developer-oriented documentation, code examples and
+  an in-depth installation guide.
+* See WYSIWYG for information on editors like TinyMCE and FCKeditor
+
+HTML Purifier can be found on the web at: http://htmlpurifier.org/
+
+    vim: et sw=4 sts=4

library/ezyang/htmlpurifier/TODO

@@ -0,0 +1,150 @@
+
+TODO List
+
+= KEY ====================
+    # Flagship
+    - Regular
+    ? Maybe I'll Do It
+==========================
+
+If no interest is expressed for a feature that may require a considerable
+amount of effort to implement, it may get endlessly delayed. Do not be
+afraid to cast your vote for the next feature to be implemented!
+
+Things to do as soon as possible:
+
+ - http://htmlpurifier.org/phorum/read.php?3,5560,6307#msg-6307
+ - Think about allowing explicit order of operations hooks for transforms
+ - Fix "<.<" bug (trailing < is removed if not EOD)
+ - Build in better internal state dumps and debugging tools for remote
+   debugging
+ - Allowed/Allowed* have strange interactions when both set
+ ? Transform lone embeds into object tags
+ - Deprecated config options that emit warnings when you set them (with'
+   a way of muting the warning if you really want to)
+ - Make HTML.Trusted work with Output.FlashCompat
+ - HTML.Trusted and HTML.SafeObject have funny interaction; general
+   problem is what to do when a module "supersedes" another
+   (see also tables and basic tables.)  This is a little dicier
+   because HTML.SafeObject has some extra functionality that
+   trusted might find useful.  See http://htmlpurifier.org/phorum/read.php?3,5762,6100
+
+FUTURE VERSIONS
+---------------
+
+4.8 release [OMG CONFIG PONIES]
+ ! Fix Printer. It's from the old days when we didn't have decent XML classes
+ ! Factor demo.php into a set of Printer classes, and then create a stub
+   file for users here (inside the actual HTML Purifier library)
+ - Fix error handling with form construction
+ - Do encoding validation in Printers, or at least, where user data comes in
+ - Config: Add examples to everything (make built-in which also automatically
+   gives output)
+ - Add "register" field to config schemas to eliminate dependence on
+   naming conventions (try to remember why we ultimately decided on tihs)
+
+5.0 release [HTML 5]
+ # Swap out code to use html5lib tokenizer and tree-builder
+ ! Allow turning off of FixNesting and required attribute insertion
+
+5.1 release [It's All About Trust] (floating)
+ # Implement untrusted, dangerous elements/attributes
+ # Implement IDREF support (harder than it seems, since you cannot have
+   IDREFs to non-existent IDs)
+     - Implement <area> (client and server side image maps are blocking
+       on IDREF support)
+ # Frameset XHTML 1.0 and HTML 4.01 doctypes
+ - Figure out how to simultaneously set %CSS.Trusted and %HTML.Trusted (?)
+
+5.2 release [Error'ed]
+ # Error logging for filtering/cleanup procedures
+ # Additional support for poorly written HTML
+    - Microsoft Word HTML cleaning (i.e. MsoNormal, but research essential!)
+    - Friendly strict handling of <address> (block -> <br>)
+ - XSS-attempt detection--certain errors are flagged XSS-like
+ - Append something to duplicate IDs so they're still usable (impl. note: the
+   dupe detector would also need to detect the suffix as well)
+
+6.0 release [Beyond HTML]
+ # Legit token based CSS parsing (will require revamping almost every
+   AttrDef class). Probably will use CSSTidy
+ # More control over allowed CSS properties using a modularization
+ # IRI support (this includes IDN)
+ - Standardize token armor for all areas of processing
+
+7.0 release [To XML and Beyond]
+ - Extended HTML capabilities based on namespacing and tag transforms (COMPLEX)
+    - Hooks for adding custom processors to custom namespaced tags and
+      attributes, offer default implementation
+    - Lots of documentation and samples
+
+Ongoing
+ - More refactoring to take advantage of PHP5's facilities
+ - Refactor unit tests into lots of test methods
+ - Plugins for major CMSes (COMPLEX)
+    - phpBB
+    - Also, a FAQ for extension writers with HTML Purifier
+
+AutoFormat
+ - Smileys
+ - Syntax highlighting (with GeSHi) with <pre> and possibly <?php
+ - Look at http://drupal.org/project/Modules/category/63 for ideas
+
+Neat feature related
+ ! Support exporting configuration, so users can easily tweak settings
+   in the demo, and then copy-paste into their own setup
+ - Advanced URI filtering schemes (see docs/proposal-new-directives.txt)
+ - Allow scoped="scoped" attribute in <style> tags; may be troublesome
+   because regular CSS has no way of uniquely identifying nodes, so we'd
+   have to generate IDs
+ - Explain how to use HTML Purifier in non-PHP languages / create
+   a simple command line stub (or complicated?)
+ - Fixes for Firefox's inability to handle COL alignment props (Bug 915)
+ - Automatically add non-breaking spaces to empty table cells when
+   empty-cells:show is applied to have compatibility with Internet Explorer
+ - Table of Contents generation (XHTML Compiler might be reusable). May also
+   be out-of-band information.
+ - Full set of color keywords. Also, a way to add onto them without
+   finalizing the configuration object.
+ - Write a var_export and memcached DefinitionCache - Denis
+ - Built-in support for target="_blank" on all external links
+ - Convert RTL/LTR override characters to <bdo> tags, or vice versa on demand.
+   Also, enable disabling of directionality
+ ? Externalize inline CSS to promote clean HTML, proposed by Sander Tekelenburg
+ ? Remove redundant tags, ex. <u><u>Underlined</u></u>. Implementation notes:
+    1. Analyzing which tags to remove duplicants
+    2. Ensure attributes are merged into the parent tag
+    3. Extend the tag exclusion system to specify whether or not the
+    contents should be dropped or not (currently, there's code that could do
+    something like this if it didn't drop the inner text too.)
+ ? Make AutoParagraph also support paragraph-izing double <br> tags, and not
+   just double newlines.  This is kind of tough to do in the current framework,
+   though, and might be reasonably approximated by search replacing double <br>s
+   with newlines before running it through HTML Purifier.
+
+Maintenance related (slightly boring)
+ # CHMOD install script for PEAR installs
+ ! Factor out command line parser into its own class, and unit test it
+ - Reduce size of internal data-structures (esp. HTMLDefinition)
+ - Allow merging configurations.  Thus,
+        a -> b -> default
+        c -> d -> default
+   becomes
+        a -> b -> c -> d -> default
+   Maybe allow more fine-grained tuning of this behavior. Alternatively,
+   encourage people to use short plist depths before building them up.
+ - Time PHPT tests
+
+ChildDef related (very boring)
+ - Abstract ChildDef_BlockQuote to work with all elements that only
+   allow blocks in them, required or optional
+ - Implement lenient <ruby> child validation
+
+Wontfix
+ - Non-lossy smart alternate character encoding transformations (unless
+   patch provided)
+ - Pretty-printing HTML: users can use Tidy on the output on entire page
+ - Native content compression, whitespace stripping: use gzip if this is
+   really important
+
+    vim: et sw=4 sts=4

library/ezyang/htmlpurifier/VERSION

@@ -0,0 +1 @@
+4.7.0

library/ezyang/htmlpurifier/WHATSNEW

@@ -0,0 +1,4 @@
+HTML Purifier 4.7.0 is a bugfix release, collecting two years
+worth of accumulated bug fixes.  Highlighted bugfixes are updated
+YouTube filter code, corrected rgb() CSS parsing, and one new
+configuration option, %AutoFormat.RemoveEmpty.Predicate.

library/ezyang/htmlpurifier/WYSIWYG

@@ -0,0 +1,20 @@
+
+WYSIWYG - What You See Is What You Get
+    HTML Purifier: A Pretty Good Fit for TinyMCE and FCKeditor
+
+Javascript-based WYSIWYG editors, simply stated, are quite amazing.  But I've
+always been wary about using them due to security issues: they handle the
+client-side magic, but once you've been served a piping hot load of unfiltered
+HTML, what should be done then?  In some situations, you can serve it uncleaned,
+since you only offer these facilities to trusted(?) authors.
+
+Unfortunantely, for blog comments and anonymous input, BBCode, Textile and
+other markup languages still reign supreme.  Put simply: filtering HTML is
+hard work, and these WYSIWYG authors don't offer anything to alleviate that
+trouble.  Therein lies the solution:
+
+HTML Purifier is perfect for filtering pure-HTML input from WYSIWYG editors.
+
+Enough said.
+
+    vim: et sw=4 sts=4

library/ezyang/htmlpurifier/composer.json

@@ -0,0 +1,22 @@
+{
+    "name": "ezyang/htmlpurifier",
+    "description": "Standards compliant HTML filter written in PHP",
+    "type": "library",
+    "keywords": ["html"],
+    "homepage": "http://htmlpurifier.org/",
+    "license": "LGPL",
+    "authors": [
+        {
+            "name": "Edward Z. Yang",
+            "email": "admin@htmlpurifier.org",
+            "homepage": "http://ezyang.com"
+        }
+    ],
+    "require": {
+        "php": ">=5.2"
+    },
+    "autoload": {
+        "psr-0": { "HTMLPurifier": "library/" },
+        "files": ["library/HTMLPurifier.composer.php"]
+    }
+}

library/ezyang/htmlpurifier/extras/ConfigDoc/HTMLXSLTProcessor.php

@@ -0,0 +1,91 @@
+<?php
+
+/**
+ * Decorator/extender XSLT processor specifically for HTML documents.
+ */
+class ConfigDoc_HTMLXSLTProcessor
+{
+
+    /**
+     * Instance of XSLTProcessor
+     */
+    protected $xsltProcessor;
+
+    public function __construct($proc = false)
+    {
+        if ($proc === false) $proc = new XSLTProcessor();
+        $this->xsltProcessor = $proc;
+    }
+
+    /**
+     * @note Allows a string $xsl filename to be passed
+     */
+    public function importStylesheet($xsl)
+    {
+        if (is_string($xsl)) {
+            $xsl_file = $xsl;
+            $xsl = new DOMDocument();
+            $xsl->load($xsl_file);
+        }
+        return $this->xsltProcessor->importStylesheet($xsl);
+    }
+
+    /**
+     * Transforms an XML file into compatible XHTML based on the stylesheet
+     * @param $xml XML DOM tree, or string filename
+     * @return string HTML output
+     * @todo Rename to transformToXHTML, as transformToHTML is misleading
+     */
+    public function transformToHTML($xml)
+    {
+        if (is_string($xml)) {
+            $dom = new DOMDocument();
+            $dom->load($xml);
+        } else {
+            $dom = $xml;
+        }
+        $out = $this->xsltProcessor->transformToXML($dom);
+
+        // fudges for HTML backwards compatibility
+        // assumes that document is XHTML
+        $out = str_replace('/>', ' />', $out); // <br /> not <br/>
+        $out = str_replace(' xmlns=""', '', $out); // rm unnecessary xmlns
+
+        if (class_exists('Tidy')) {
+            // cleanup output
+            $config = array(
+                'indent'        => true,
+                'output-xhtml'  => true,
+                'wrap'          => 80
+            );
+            $tidy = new Tidy;
+            $tidy->parseString($out, $config, 'utf8');
+            $tidy->cleanRepair();
+            $out = (string) $tidy;
+        }
+
+        return $out;
+    }
+
+    /**
+     * Bulk sets parameters for the XSL stylesheet
+     * @param array $options Associative array of options to set
+     */
+    public function setParameters($options)
+    {
+        foreach ($options as $name => $value) {
+            $this->xsltProcessor->setParameter('', $name, $value);
+        }
+    }
+
+    /**
+     * Forward any other calls to the XSLT processor
+     */
+    public function __call($name, $arguments)
+    {
+        call_user_func_array(array($this->xsltProcessor, $name), $arguments);
+    }
+
+}
+
+// vim: et sw=4 sts=4

library/ezyang/htmlpurifier/extras/FSTools.php

@@ -0,0 +1,164 @@
+<?php
+
+/**
+ * Filesystem tools not provided by default; can recursively create, copy
+ * and delete folders. Some template methods are provided for extensibility.
+ *
+ * @note This class must be instantiated to be used, although it does
+ *       not maintain state.
+ */
+class FSTools
+{
+
+    private static $singleton;
+
+    /**
+     * Returns a global instance of FSTools
+     */
+    public static function singleton()
+    {
+        if (empty(FSTools::$singleton)) FSTools::$singleton = new FSTools();
+        return FSTools::$singleton;
+    }
+
+    /**
+     * Sets our global singleton to something else; useful for overloading
+     * functions.
+     */
+    public static function setSingleton($singleton)
+    {
+        FSTools::$singleton = $singleton;
+    }
+
+    /**
+     * Recursively creates a directory
+     * @param string $folder Name of folder to create
+     * @note Adapted from the PHP manual comment 76612
+     */
+    public function mkdirr($folder)
+    {
+        $folders = preg_split("#[\\\\/]#", $folder);
+        $base = '';
+        for($i = 0, $c = count($folders); $i < $c; $i++) {
+            if(empty($folders[$i])) {
+                if (!$i) {
+                    // special case for root level
+                    $base .= DIRECTORY_SEPARATOR;
+                }
+                continue;
+            }
+            $base .= $folders[$i];
+            if(!is_dir($base)){
+                $this->mkdir($base);
+            }
+            $base .= DIRECTORY_SEPARATOR;
+        }
+    }
+
+    /**
+     * Copy a file, or recursively copy a folder and its contents; modified
+     * so that copied files, if PHP, have includes removed
+     * @note Adapted from http://aidanlister.com/repos/v/function.copyr.php
+     */
+    public function copyr($source, $dest)
+    {
+        // Simple copy for a file
+        if (is_file($source)) {
+            return $this->copy($source, $dest);
+        }
+        // Make destination directory
+        if (!is_dir($dest)) {
+            $this->mkdir($dest);
+        }
+        // Loop through the folder
+        $dir = $this->dir($source);
+        while ( false !== ($entry = $dir->read()) ) {
+            // Skip pointers
+            if ($entry == '.' || $entry == '..') {
+                continue;
+            }
+            if (!$this->copyable($entry)) {
+                continue;
+            }
+            // Deep copy directories
+            if ($dest !== "$source/$entry") {
+                $this->copyr("$source/$entry", "$dest/$entry");
+            }
+        }
+        // Clean up
+        $dir->close();
+        return true;
+    }
+
+    /**
+     * Overloadable function that tests a filename for copyability. By
+     * default, everything should be copied; you can restrict things to
+     * ignore hidden files, unreadable files, etc. This function
+     * applies to copyr().
+     */
+    public function copyable($file)
+    {
+        return true;
+    }
+
+    /**
+     * Delete a file, or a folder and its contents
+     * @note Adapted from http://aidanlister.com/repos/v/function.rmdirr.php
+     */
+    public function rmdirr($dirname)
+    {
+        // Sanity check
+        if (!$this->file_exists($dirname)) {
+            return false;
+        }
+
+        // Simple delete for a file
+        if ($this->is_file($dirname) || $this->is_link($dirname)) {
+            return $this->unlink($dirname);
+        }
+
+        // Loop through the folder
+        $dir = $this->dir($dirname);
+        while (false !== $entry = $dir->read()) {
+            // Skip pointers
+            if ($entry == '.' || $entry == '..') {
+                continue;
+            }
+            // Recurse
+            $this->rmdirr($dirname . DIRECTORY_SEPARATOR . $entry);
+        }
+
+        // Clean up
+        $dir->close();
+        return $this->rmdir($dirname);
+    }
+
+    /**
+     * Recursively globs a directory.
+     */
+    public function globr($dir, $pattern, $flags = NULL)
+    {
+        $files = $this->glob("$dir/$pattern", $flags);
+        if ($files === false) $files = array();
+        $sub_dirs = $this->glob("$dir/*", GLOB_ONLYDIR);
+        if ($sub_dirs === false) $sub_dirs = array();
+        foreach ($sub_dirs as $sub_dir) {
+            $sub_files = $this->globr($sub_dir, $pattern, $flags);
+            $files = array_merge($files, $sub_files);
+        }
+        return $files;
+    }
+
+    /**
+     * Allows for PHP functions to be called and be stubbed.
+     * @warning This function will not work for functions that need
+     *      to pass references; manually define a stub function for those.
+     */
+    public function __call($name, $args)
+    {
+        return call_user_func_array($name, $args);
+    }
+
+}
+
+// vim: et sw=4 sts=4

library/ezyang/htmlpurifier/extras/FSTools/File.php

@@ -0,0 +1,141 @@
+<?php
+
+/**
+ * Represents a file in the filesystem
+ *
+ * @warning Be sure to distinguish between get() and write() versus
+ *      read() and put(), the former operates on the entire file, while
+ *      the latter operates on a handle.
+ */
+class FSTools_File
+{
+
+    /** Filename of file this object represents */
+    protected $name;
+
+    /** Handle for the file */
+    protected $handle = false;
+
+    /** Instance of FSTools for interfacing with filesystem */
+    protected $fs;
+
+    /**
+     * Filename of file you wish to instantiate.
+     * @note This file need not exist
+     */
+    public function __construct($name, $fs = false)
+    {
+        $this->name = $name;
+        $this->fs = $fs ? $fs : FSTools::singleton();
+    }
+
+    /** Returns the filename of the file. */
+    public function getName() {return $this->name;}
+
+    /** Returns directory of the file without trailing slash */
+    public function getDirectory() {return $this->fs->dirname($this->name);}
+
+    /**
+     * Retrieves the contents of a file
+     * @todo Throw an exception if file doesn't exist
+     */
+    public function get()
+    {
+        return $this->fs->file_get_contents($this->name);
+    }
+
+    /** Writes contents to a file, creates new file if necessary */
+    public function write($contents)
+    {
+        return $this->fs->file_put_contents($this->name, $contents);
+    }
+
+    /** Deletes the file */
+    public function delete()
+    {
+        return $this->fs->unlink($this->name);
+    }
+
+    /** Returns true if file exists and is a file. */
+    public function exists()
+    {
+        return $this->fs->is_file($this->name);
+    }
+
+    /** Returns last file modification time */
+    public function getMTime()
+    {
+        return $this->fs->filemtime($this->name);
+    }
+
+    /**
+     * Chmod a file
+     * @note We ignore errors because of some weird owner trickery due
+     *       to SVN duality
+     */
+    public function chmod($octal_code)
+    {
+        return @$this->fs->chmod($this->name, $octal_code);
+    }
+
+    /** Opens file's handle */
+    public function open($mode)
+    {
+        if ($this->handle) $this->close();
+        $this->handle = $this->fs->fopen($this->name, $mode);
+        return true;
+    }
+
+    /** Closes file's handle */
+    public function close()
+    {
+        if (!$this->handle) return false;
+        $status = $this->fs->fclose($this->handle);
+        $this->handle = false;
+        return $status;
+    }
+
+    /** Retrieves a line from an open file, with optional max length $length */
+    public function getLine($length = null)
+    {
+        if (!$this->handle) $this->open('r');
+        if ($length === null) return $this->fs->fgets($this->handle);
+        else return $this->fs->fgets($this->handle, $length);
+    }
+
+    /** Retrieves a character from an open file */
+    public function getChar()
+    {
+        if (!$this->handle) $this->open('r');
+        return $this->fs->fgetc($this->handle);
+    }
+
+    /** Retrieves an $length bytes of data from an open data */
+    public function read($length)
+    {
+        if (!$this->handle) $this->open('r');
+        return $this->fs->fread($this->handle, $length);
+    }
+
+    /** Writes to an open file */
+    public function put($string)
+    {
+        if (!$this->handle) $this->open('a');
+        return $this->fs->fwrite($this->handle, $string);
+    }
+
+    /** Returns TRUE if the end of the file has been reached */
+    public function eof()
+    {
+        if (!$this->handle) return true;
+        return $this->fs->feof($this->handle);
+    }
+
+    public function __destruct()
+    {
+        if ($this->handle) $this->close();
+    }
+
+}
+
+// vim: et sw=4 sts=4

library/ezyang/htmlpurifier/extras/HTMLPurifierExtras.auto.php

@@ -0,0 +1,11 @@
+<?php
+
+/**
+ * This is a stub include that automatically configures the include path.
+ */
+
+set_include_path(dirname(__FILE__) . PATH_SEPARATOR . get_include_path() );
+require_once 'HTMLPurifierExtras.php';
+require_once 'HTMLPurifierExtras.autoload.php';
+
+// vim: et sw=4 sts=4

library/ezyang/htmlpurifier/extras/HTMLPurifierExtras.autoload.php

@@ -0,0 +1,26 @@
+<?php
+
+/**
+ * @file
+ * Convenience file that registers autoload handler for HTML Purifier.
+ *
+ * @warning
+ *      This autoloader does not contain the compatibility code seen in
+ *      HTMLPurifier_Bootstrap; the user is expected to make any necessary
+ *      changes to use this library.
+ */
+
+if (function_exists('spl_autoload_register')) {
+    spl_autoload_register(array('HTMLPurifierExtras', 'autoload'));
+    if (function_exists('__autoload')) {
+        // Be polite and ensure that userland autoload gets retained
+        spl_autoload_register('__autoload');
+    }
+} elseif (!function_exists('__autoload')) {
+    function __autoload($class)
+    {
+        return HTMLPurifierExtras::autoload($class);
+    }
+}
+
+// vim: et sw=4 sts=4

library/ezyang/htmlpurifier/extras/HTMLPurifierExtras.php

@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * Meta-class for HTML Purifier's extra class hierarchies, similar to
+ * HTMLPurifier_Bootstrap.
+ */
+class HTMLPurifierExtras
+{
+
+    public static function autoload($class)
+    {
+        $path = HTMLPurifierExtras::getPath($class);
+        if (!$path) return false;
+        require $path;
+        return true;
+    }
+
+    public static function getPath($class)
+    {
+        if (
+            strncmp('FSTools', $class, 7) !== 0 &&
+            strncmp('ConfigDoc', $class, 9) !== 0
+        ) return false;
+        // Custom implementations can go here
+        // Standard implementation:
+        return str_replace('_', '/', $class) . '.php';
+    }
+
+}
+
+// vim: et sw=4 sts=4

library/ezyang/htmlpurifier/extras/README

@@ -0,0 +1,32 @@
+
+HTML Purifier Extras
+    The Method Behind The Madness!
+
+The extras/ folder in HTML Purifier contains--you guessed it--extra things
+for HTML Purifier.  Specifically, these are two extra libraries called
+FSTools and ConfigSchema.  They're extra for a reason: you don't need them
+if you're using HTML Purifier for normal usage: filtering HTML.  However,
+if you're a developer, and would like to test HTML Purifier, or need to
+use one of HTML Purifier's maintenance scripts, chances are they'll need
+these libraries. Who knows: maybe you'll find them useful too!
+
+Here are the libraries:
+
+
+FSTools
+-------
+
+Short for File System Tools, this is a poor-man's object-oriented wrapper for
+the filesystem. It currently consists of two classes:
+
+- FSTools: This is a singleton that contains a manner of useful functions
+  such as recursive glob, directory removal, etc, as well as the ability
+  to call arbitrary native PHP functions through it like $FS->fopen(...).
+  This makes it a lot simpler to mock these filesystem calls for unit testing.
+
+- FSTools_File: This object represents a single file, and has almost any
+  method imaginable one would need.
+
+Check the files themselves for more information.
+
+    vim: et sw=4 sts=4

library/ezyang/htmlpurifier/library/HTMLPurifier.autoload.php

@@ -3,6 +3,7 @@
 /**
  * @file
  * Convenience file that registers autoload handler for HTML Purifier.
+ * It also does some sanity checks.
  */
 
 if (function_exists('spl_autoload_register') && function_exists('spl_autoload_unregister')) {
@@ -13,9 +14,14 @@ if (function_exists('spl_autoload_register') && function_exists('spl_autoload_un
         spl_autoload_register('__autoload');
     }
 } elseif (!function_exists('__autoload')) {
-    function __autoload($class) {
+    function __autoload($class)
+    {
         return HTMLPurifier_Bootstrap::autoload($class);
     }
 }
 
+if (ini_get('zend.ze1_compatibility_mode')) {
+    trigger_error("HTML Purifier is not compatible with zend.ze1_compatibility_mode; please turn it off", E_USER_ERROR);
+}
+
 // vim: et sw=4 sts=4

library/ezyang/htmlpurifier/library/HTMLPurifier.composer.php

@@ -0,0 +1,4 @@
+<?php
+if (!defined('HTMLPURIFIER_PREFIX')) {
+    define('HTMLPURIFIER_PREFIX', dirname(__FILE__));
+}

library/ezyang/htmlpurifier/library/HTMLPurifier.func.php

@@ -8,11 +8,13 @@
 
 /**
  * Purify HTML.
- * @param $html String HTML to purify
- * @param $config Configuration to use, can be any value accepted by
+ * @param string $html String HTML to purify
+ * @param mixed $config Configuration to use, can be any value accepted by
  *        HTMLPurifier_Config::create()
+ * @return string
  */
-function HTMLPurifier($html, $config = null) {
+function HTMLPurifier($html, $config = null)
+{
     static $purifier = false;
     if (!$purifier) {
         $purifier = new HTMLPurifier();