From c53d8d026021f97075fb2f4940ba22793c38fb6e Mon Sep 17 00:00:00 2001
From: davehauenstein <davehauenstein@d4e419ec-0920-11de-bbfd-a7c1bc4c261e>
Date: Wed, 15 Apr 2009 22:06:42 +0000
Subject: 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
---
 lib/Zend/Validate/File/Hash.php | 195 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 195 insertions(+)
 create mode 100644 lib/Zend/Validate/File/Hash.php

(limited to 'lib/Zend/Validate/File/Hash.php')

diff --git a/lib/Zend/Validate/File/Hash.php b/lib/Zend/Validate/File/Hash.php
new file mode 100644
index 0000000..1702593
--- /dev/null
+++ b/lib/Zend/Validate/File/Hash.php
@@ -0,0 +1,195 @@
+<?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_Validate
+ * @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: $
+ */
+
+/**
+ * @see Zend_Validate_Abstract
+ */
+require_once 'Zend/Validate/Abstract.php';
+
+/**
+ * Validator for the hash of given files
+ *
+ * @category  Zend
+ * @package   Zend_Validate
+ * @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_Validate_File_Hash extends Zend_Validate_Abstract
+{
+    /**
+     * @const string Error constants
+     */
+    const DOES_NOT_MATCH = 'fileHashDoesNotMatch';
+    const NOT_DETECTED   = 'fileHashHashNotDetected';
+    const NOT_FOUND      = 'fileHashNotFound';
+
+    /**
+     * @var array Error message templates
+     */
+    protected $_messageTemplates = array(
+        self::DOES_NOT_MATCH => "The file '%value%' does not match the given hashes",
+        self::NOT_DETECTED   => "There was no hash detected for the given file",
+        self::NOT_FOUND      => "The file '%value%' could not be found"
+    );
+
+    /**
+     * Hash of the file
+     *
+     * @var string
+     */
+    protected $_hash;
+
+    /**
+     * Sets validator options
+     *
+     * @param  string|array $options
+     * @return void
+     */
+    public function __construct($options)
+    {
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        } elseif (is_scalar($options)) {
+            $options = array('hash1' => $options);
+        } elseif (!is_array($options)) {
+            require_once 'Zend/Validate/Exception.php';
+            throw new Zend_Validate_Exception('Invalid options to validator provided');
+        }
+
+        if (1 < func_num_args()) {
+            trigger_error('Multiple constructor options are deprecated in favor of a single options array', E_USER_NOTICE);
+            $options['algorithm'] = func_get_arg(1);
+        }
+
+        $this->setHash($options);
+    }
+
+    /**
+     * Returns the set hash values as array, the hash as key and the algorithm the value
+     *
+     * @return array
+     */
+    public function getHash()
+    {
+        return $this->_hash;
+    }
+
+    /**
+     * Sets the hash for one or multiple files
+     *
+     * @param  string|array $options
+     * @return Zend_Validate_File_Hash Provides a fluent interface
+     */
+    public function setHash($options)
+    {
+        $this->_hash  = null;
+        $this->addHash($options);
+
+        return $this;
+    }
+
+    /**
+     * Adds the hash for one or multiple files
+     *
+     * @param  string|array $options
+     * @return Zend_Validate_File_Hash Provides a fluent interface
+     */
+    public function addHash($options)
+    {
+        if (is_string($options)) {
+            $options = array($options);
+        } else if (!is_array($options)) {
+            require_once 'Zend/Validate/Exception.php';
+            throw new Zend_Validate_Exception("False parameter given");
+        }
+
+        $known = hash_algos();
+        if (!isset($options['algorithm'])) {
+            $algorithm = 'crc32';
+        } else {
+            $algorithm = $options['algorithm'];
+            unset($options['algorithm']);
+        }
+
+        if (!in_array($algorithm, $known)) {
+            require_once 'Zend/Validate/Exception.php';
+            throw new Zend_Validate_Exception("Unknown algorithm '{$algorithm}'");
+        }
+
+        foreach ($options as $value) {
+            $this->_hash[$value] = $algorithm;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Defined by Zend_Validate_Interface
+     *
+     * Returns true if and only if the given file confirms the set hash
+     *
+     * @param  string $value Filename to check for hash
+     * @param  array  $file  File data from Zend_File_Transfer
+     * @return boolean
+     */
+    public function isValid($value, $file = null)
+    {
+        // Is file readable ?
+        require_once 'Zend/Loader.php';
+        if (!Zend_Loader::isReadable($value)) {
+            return $this->_throw($file, self::NOT_FOUND);
+        }
+
+        $algos  = array_unique(array_values($this->_hash));
+        $hashes = array_unique(array_keys($this->_hash));
+        foreach ($algos as $algorithm) {
+            $filehash = hash_file($algorithm, $value);
+            if ($filehash === false) {
+                return $this->_throw($file, self::NOT_DETECTED);
+            }
+
+            foreach($hashes as $hash) {
+                if ($filehash === $hash) {
+                    return true;
+                }
+            }
+        }
+
+        return $this->_throw($file, self::DOES_NOT_MATCH);
+    }
+
+    /**
+     * Throws an error of the given type
+     *
+     * @param  string $file
+     * @param  string $errorType
+     * @return false
+     */
+    protected function _throw($file, $errorType)
+    {
+        if ($file !== null) {
+            $this->_value = $file['name'];
+        }
+
+        $this->_error($errorType);
+        return false;
+    }
+}
-- 
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