146 lines
3.2 KiB
PHP
146 lines
3.2 KiB
PHP
<?php
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/**
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* ZeroBin
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*
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* a zero-knowledge paste bin
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*
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* @link http://sebsauvage.net/wiki/doku.php?id=php:zerobin
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* @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
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* @license http://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
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* @version 0.22
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*/
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/**
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* zerobin_abstract
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*
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* Abstract model for ZeroBin data access, implemented as a singleton.
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*/
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abstract class zerobin_abstract
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{
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/**
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* singleton instance
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*
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* @access protected
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* @static
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* @var zerobin_abstract
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*/
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protected static $_instance = null;
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/**
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* enforce singleton, disable constructor
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*
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* Instantiate using {@link getInstance()}, zerobin is a singleton object.
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*
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* @access protected
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*/
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protected function __construct() {}
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/**
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* enforce singleton, disable cloning
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*
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* Instantiate using {@link getInstance()}, zerobin is a singleton object.
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*
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* @access private
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*/
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private function __clone() {}
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/**
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* get instance of singleton
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*
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* @access public
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* @static
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* @param array $options
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* @return zerobin_abstract
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*/
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public static function getInstance($options) {}
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/**
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* Create a paste.
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*
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* @access public
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* @param string $pasteid
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* @param array $paste
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* @return bool
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*/
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abstract public function create($pasteid, $paste);
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/**
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* Read a paste.
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*
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* @access public
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* @param string $pasteid
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* @return string
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*/
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abstract public function read($pasteid);
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/**
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* Delete a paste and its discussion.
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*
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* @access public
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* @param string $pasteid
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* @return void
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*/
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abstract public function delete($pasteid);
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/**
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* Test if a paste exists.
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*
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* @access public
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* @param string $dataid
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* @return bool
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*/
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abstract public function exists($pasteid);
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/**
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* Create a comment in a paste.
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*
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* @access public
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* @param string $pasteid
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* @param string $parentid
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* @param string $commentid
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* @param array $comment
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* @return bool
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*/
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abstract public function createComment($pasteid, $parentid, $commentid, $comment);
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/**
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* Read all comments of paste.
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*
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* @access public
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* @param string $pasteid
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* @return array
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*/
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abstract public function readComments($pasteid);
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/**
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* Test if a comment exists.
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*
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* @access public
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* @param string $dataid
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* @param string $parentid
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* @param string $commentid
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* @return void
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*/
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abstract public function existsComment($pasteid, $parentid, $commentid);
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/**
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* Get next free slot for comment from postdate.
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*
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* @access public
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* @param array $comments
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* @param int|string $postdate
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* @return void
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*/
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protected function getOpenSlot(&$comments, $postdate)
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{
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if (array_key_exists($postdate, $comments))
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{
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$parts = explode('.', $postdate, 2);
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if (!array_key_exists(1, $parts)) $parts[1] = 0;
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++$parts[1];
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return $this->getOpenSlot($comments, implode('.', $parts));
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}
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return $postdate;
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}
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}
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