added toolbar; functionality includes refresh button to get back to original page, print article, email a link to the article with a personal note

git-svn-id: http://arc90labs-readability.googlecode.com/svn/trunk@31 d4e419ec-0920-11de-bbfd-a7c1bc4c261e

1 files changed, 263 insertions, 0 deletions

diff --git a/lib/Zend/Loader.php b/lib/Zend/Loader.php
new file mode 100644
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+++ b/lib/Zend/Loader.php
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+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Loader
+ * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Loader.php 12507 2008-11-10 16:29:09Z matthew $
+ */
+
+/**
+ * Static methods for loading classes and files.
+ *
+ * @category   Zend
+ * @package    Zend_Loader
+ * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Loader
+{
+    /**
+     * Loads a class from a PHP file.  The filename must be formatted
+     * as "$class.php".
+     *
+     * If $dirs is a string or an array, it will search the directories
+     * in the order supplied, and attempt to load the first matching file.
+     *
+     * If $dirs is null, it will split the class name at underscores to
+     * generate a path hierarchy (e.g., "Zend_Example_Class" will map
+     * to "Zend/Example/Class.php").
+     *
+     * If the file was not found in the $dirs, or if no $dirs were specified,
+     * it will attempt to load it from PHP's include_path.
+     *
+     * @param string $class      - The full class name of a Zend component.
+     * @param string|array $dirs - OPTIONAL Either a path or an array of paths
+     *                             to search.
+     * @return void
+     * @throws Zend_Exception
+     */
+    public static function loadClass($class, $dirs = null)
+    {
+        if (class_exists($class, false) || interface_exists($class, false)) {
+            return;
+        }
+
+        if ((null !== $dirs) && !is_string($dirs) && !is_array($dirs)) {
+            require_once 'Zend/Exception.php';
+            throw new Zend_Exception('Directory argument must be a string or an array');
+        }
+
+        // autodiscover the path from the class name
+        $file = str_replace('_', DIRECTORY_SEPARATOR, $class) . '.php';
+        if (!empty($dirs)) {
+            // use the autodiscovered path
+            $dirPath = dirname($file);
+            if (is_string($dirs)) {
+                $dirs = explode(PATH_SEPARATOR, $dirs);
+            }
+            foreach ($dirs as $key => $dir) {
+                if ($dir == '.') {
+                    $dirs[$key] = $dirPath;
+                } else {
+                    $dir = rtrim($dir, '\\/');
+                    $dirs[$key] = $dir . DIRECTORY_SEPARATOR . $dirPath;
+                }
+            }
+            $file = basename($file);
+            self::loadFile($file, $dirs, true);
+        } else {
+            self::_securityCheck($file);
+            include_once $file;
+        }
+
+        if (!class_exists($class, false) && !interface_exists($class, false)) {
+            require_once 'Zend/Exception.php';
+            throw new Zend_Exception("File \"$file\" does not exist or class \"$class\" was not found in the file");
+        }
+    }
+
+    /**
+     * Loads a PHP file.  This is a wrapper for PHP's include() function.
+     *
+     * $filename must be the complete filename, including any
+     * extension such as ".php".  Note that a security check is performed that
+     * does not permit extended characters in the filename.  This method is
+     * intended for loading Zend Framework files.
+     *
+     * If $dirs is a string or an array, it will search the directories
+     * in the order supplied, and attempt to load the first matching file.
+     *
+     * If the file was not found in the $dirs, or if no $dirs were specified,
+     * it will attempt to load it from PHP's include_path.
+     *
+     * If $once is TRUE, it will use include_once() instead of include().
+     *
+     * @param  string        $filename
+     * @param  string|array  $dirs - OPTIONAL either a path or array of paths
+     *                       to search.
+     * @param  boolean       $once
+     * @return boolean
+     * @throws Zend_Exception
+     */
+    public static function loadFile($filename, $dirs = null, $once = false)
+    {
+        self::_securityCheck($filename);
+
+        /**
+         * Search in provided directories, as well as include_path
+         */
+        $incPath = false;
+        if (!empty($dirs) && (is_array($dirs) || is_string($dirs))) {
+            if (is_array($dirs)) {
+                $dirs = implode(PATH_SEPARATOR, $dirs);
+            }
+            $incPath = get_include_path();
+            set_include_path($dirs . PATH_SEPARATOR . $incPath);
+        }
+
+        /**
+         * Try finding for the plain filename in the include_path.
+         */
+        if ($once) {
+            include_once $filename;
+        } else {
+            include $filename;
+        }
+
+        /**
+         * If searching in directories, reset include_path
+         */
+        if ($incPath) {
+            set_include_path($incPath);
+        }
+
+        return true;
+    }
+
+    /**
+     * Returns TRUE if the $filename is readable, or FALSE otherwise.
+     * This function uses the PHP include_path, where PHP's is_readable()
+     * does not.
+     *
+     * Note from ZF-2900:
+     * If you use custom error handler, please check whether return value
+     *  from error_reporting() is zero or not.
+     * At mark of fopen() can not suppress warning if the handler is used.
+     *
+     * @param string   $filename
+     * @return boolean
+     */
+    public static function isReadable($filename)
+    {
+        if (!$fh = @fopen($filename, 'r', true)) {
+            return false;
+        }
+        @fclose($fh);
+        return true;
+    }
+
+    /**
+     * spl_autoload() suitable implementation for supporting class autoloading.
+     *
+     * Attach to spl_autoload() using the following:
+     * <code>
+     * spl_autoload_register(array('Zend_Loader', 'autoload'));
+     * </code>
+     *
+     * @param string $class
+     * @return string|false Class name on success; false on failure
+     */
+    public static function autoload($class)
+    {
+        try {
+            self::loadClass($class);
+            return $class;
+        } catch (Exception $e) {
+            return false;
+        }
+    }
+
+    /**
+     * Register {@link autoload()} with spl_autoload()
+     *
+     * @param string $class (optional)
+     * @param boolean $enabled (optional)
+     * @return void
+     * @throws Zend_Exception if spl_autoload() is not found
+     * or if the specified class does not have an autoload() method.
+     */
+    public static function registerAutoload($class = 'Zend_Loader', $enabled = true)
+    {
+        if (!function_exists('spl_autoload_register')) {
+            require_once 'Zend/Exception.php';
+            throw new Zend_Exception('spl_autoload does not exist in this PHP installation');
+        }
+
+        self::loadClass($class);
+        $methods = get_class_methods($class);
+        if (!in_array('autoload', (array) $methods)) {
+            require_once 'Zend/Exception.php';
+            throw new Zend_Exception("The class \"$class\" does not have an autoload() method");
+        }
+
+        if ($enabled === true) {
+            spl_autoload_register(array($class, 'autoload'));
+        } else {
+            spl_autoload_unregister(array($class, 'autoload'));
+        }
+    }
+
+    /**
+     * Ensure that filename does not contain exploits
+     *
+     * @param  string $filename
+     * @return void
+     * @throws Zend_Exception
+     */
+    protected static function _securityCheck($filename)
+    {
+        /**
+         * Security check
+         */
+        if (preg_match('/[^a-z0-9\\/\\\\_.-]/i', $filename)) {
+            require_once 'Zend/Exception.php';
+            throw new Zend_Exception('Security check: Illegal character in filename');
+        }
+    }
+
+    /**
+     * Attempt to include() the file.
+     *
+     * include() is not prefixed with the @ operator because if
+     * the file is loaded and contains a parse error, execution
+     * will halt silently and this is difficult to debug.
+     *
+     * Always set display_errors = Off on production servers!
+     *
+     * @param  string  $filespec
+     * @param  boolean $once
+     * @return boolean
+     * @deprecated Since 1.5.0; use loadFile() instead
+     */
+    protected static function _includeFile($filespec, $once = false)
+    {
+        if ($once) {
+            return include_once $filespec;
+        } else {
+            return include $filespec ;
+        }
+    }
+}