PrivateBin/lib/zerobin/abstract.php

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<?php
/**
* ZeroBin
*
* a zero-knowledge paste bin
*
* @link http://sebsauvage.net/wiki/doku.php?id=php:zerobin
* @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
* @license http://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
* @version 0.21.1
*/
/**
* zerobin_abstract
*
* Abstract model for ZeroBin data access, implemented as a singleton.
*/
abstract class zerobin_abstract
{
/**
* singleton instance
*
* @access protected
* @static
* @var zerobin_abstract
*/
protected static $_instance = null;
/**
* enforce singleton, disable constructor
*
* Instantiate using {@link getInstance()}, zerobin is a singleton object.
*
* @access protected
*/
protected function __construct() {}
/**
* enforce singleton, disable cloning
*
* Instantiate using {@link getInstance()}, zerobin is a singleton object.
*
* @access private
*/
private function __clone() {}
/**
* get instance of singleton
*
* @access public
* @static
* @param array $options
* @return zerobin_abstract
*/
public static function getInstance($options) {}
/**
* Create a paste.
*
* @access public
* @param string $pasteid
* @param array $paste
* @return bool
*/
abstract public function create($pasteid, $paste);
/**
* Read a paste.
*
* @access public
* @param string $pasteid
* @return string
*/
abstract public function read($pasteid);
/**
* Delete a paste and its discussion.
*
* @access public
* @param string $pasteid
* @return void
*/
abstract public function delete($pasteid);
/**
* Test if a paste exists.
*
* @access public
* @param string $dataid
* @return bool
*/
abstract public function exists($pasteid);
/**
* Create a comment in a paste.
*
* @access public
* @param string $pasteid
* @param string $parentid
* @param string $commentid
* @param array $comment
* @return bool
*/
abstract public function createComment($pasteid, $parentid, $commentid, $comment);
/**
* Read all comments of paste.
*
* @access public
* @param string $pasteid
* @return array
*/
abstract public function readComments($pasteid);
/**
* Test if a comment exists.
*
* @access public
* @param string $dataid
* @param string $parentid
* @param string $commentid
* @return void
*/
abstract public function existsComment($pasteid, $parentid, $commentid);
/**
* Get next free slot for comment from postdate.
*
* @access public
* @param array $comments
* @param int|string $postdate
* @return void
*/
protected function getOpenSlot(&$comments, $postdate)
{
if (array_key_exists($postdate, $comments))
{
$parts = explode('.', $postdate, 2);
if (!array_key_exists(1, $parts)) $parts[1] = 0;
++$parts[1];
return $this->addComment($comments, implode('.', $parts));
}
return $postdate;
}
}