Wordpress 3.5

[autoinstalls/wordpress.git] / wp-includes / SimplePie / Cache / File.php

diff --git a/wp-includes/SimplePie/Cache/File.php b/wp-includes/SimplePie/Cache/File.php
new file mode 100644 (file)
index 0000000..5797b3a
--- /dev/null
+++ b/wp-includes/SimplePie/Cache/File.php
@@ -0,0 +1,173 @@
+<?php
+/**
+ * SimplePie
+ *
+ * A PHP-Based RSS and Atom Feed Framework.
+ * Takes the hard work out of managing a complete RSS/Atom solution.
+ *
+ * Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *     * Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *     * Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ *     * Neither the name of the SimplePie Team nor the names of its contributors may be used
+ *       to endorse or promote products derived from this software without specific prior
+ *       written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
+ * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package SimplePie
+ * @version 1.3.1
+ * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
+ * @author Ryan Parman
+ * @author Geoffrey Sneddon
+ * @author Ryan McCue
+ * @link http://simplepie.org/ SimplePie
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ */
+
+/**
+ * Caches data to the filesystem
+ *
+ * @package SimplePie
+ * @subpackage Caching
+ */
+class SimplePie_Cache_File implements SimplePie_Cache_Base
+{
+       /**
+        * Location string
+        *
+        * @see SimplePie::$cache_location
+        * @var string
+        */
+       protected $location;
+
+       /**
+        * Filename
+        *
+        * @var string
+        */
+       protected $filename;
+
+       /**
+        * File extension
+        *
+        * @var string
+        */
+       protected $extension;
+
+       /**
+        * File path
+        *
+        * @var string
+        */
+       protected $name;
+
+       /**
+        * Create a new cache object
+        *
+        * @param string $location Location string (from SimplePie::$cache_location)
+        * @param string $name Unique ID for the cache
+        * @param string $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data
+        */
+       public function __construct($location, $name, $type)
+       {
+               $this->location = $location;
+               $this->filename = $name;
+               $this->extension = $type;
+               $this->name = "$this->location/$this->filename.$this->extension";
+       }
+
+       /**
+        * Save data to the cache
+        *
+        * @param array|SimplePie $data Data to store in the cache. If passed a SimplePie object, only cache the $data property
+        * @return bool Successfulness
+        */
+       public function save($data)
+       {
+               if (file_exists($this->name) && is_writeable($this->name) || file_exists($this->location) && is_writeable($this->location))
+               {
+                       if ($data instanceof SimplePie)
+                       {
+                               $data = $data->data;
+                       }
+
+                       $data = serialize($data);
+                       return (bool) file_put_contents($this->name, $data);
+               }
+               return false;
+       }
+
+       /**
+        * Retrieve the data saved to the cache
+        *
+        * @return array Data for SimplePie::$data
+        */
+       public function load()
+       {
+               if (file_exists($this->name) && is_readable($this->name))
+               {
+                       return unserialize(file_get_contents($this->name));
+               }
+               return false;
+       }
+
+       /**
+        * Retrieve the last modified time for the cache
+        *
+        * @return int Timestamp
+        */
+       public function mtime()
+       {
+               if (file_exists($this->name))
+               {
+                       return filemtime($this->name);
+               }
+               return false;
+       }
+
+       /**
+        * Set the last modified time to the current time
+        *
+        * @return bool Success status
+        */
+       public function touch()
+       {
+               if (file_exists($this->name))
+               {
+                       return touch($this->name);
+               }
+               return false;
+       }
+
+       /**
+        * Remove the cache
+        *
+        * @return bool Success status
+        */
+       public function unlink()
+       {
+               if (file_exists($this->name))
+               {
+                       return unlink($this->name);
+               }
+               return false;
+       }
+}