177 lines
3.4 KiB
PHP
177 lines
3.4 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 0.15
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*/
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/**
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* zerobin_db
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*
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* Model for DB access, implemented as a singleton.
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*/
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class zerobin_db
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{
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/*
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* @access private
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* @static
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* @var PDO instance of database connection
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*/
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private static $_db;
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/**
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* singleton instance
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*
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* @access private
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* @static
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* @var zerobin
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*/
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private static $_instance = null;
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/**
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* enforce singleton, disable constructor
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*
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* Instantiate using {@link getInstance()}, zerobin is a singleton object.
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*
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* @access protected
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*/
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protected function __construct() {}
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/**
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* enforce singleton, disable cloning
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*
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* Instantiate using {@link getInstance()}, zerobin is a singleton object.
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*
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* @access private
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*/
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private function __clone() {}
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/**
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* get instance of singleton
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*
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* @access public
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* @static
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* @return zerobin
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*/
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public static function getInstance($options)
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{
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// if needed initialize the singleton
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if(null === self::$_instance) {
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self::$_instance = new self;
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self::_init();
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}
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if (
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is_array($options) &&
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array_key_exists('dsn', $options) &&
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array_key_exists('usr', $options) &&
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array_key_exists('pwd', $options) &&
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array_key_exists('opt', $options)
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) self::$_db = new PDO(
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$options['dsn'],
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$options['usr'],
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$options['pwd'],
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$options['opt']
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);
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return self::$_instance;
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}
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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 $paste
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* @return int|false
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*/
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public function create($pasteid, $paste)
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{
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}
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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 $pasteid
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* @return string
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*/
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public function read($pasteid)
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{
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}
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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 $pasteid
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* @return void
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*/
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public function delete($pasteid)
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{
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}
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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 $dataid
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* @return void
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*/
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public function exists($pasteid)
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{
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}
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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 $comment
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* @return int|false
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*/
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public function createComment($pasteid, $parentid, $commentid, $comment)
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{
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}
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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 $pasteid
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* @return array
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*/
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public function readComments($pasteid)
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{
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}
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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 $commentid
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* @return void
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*/
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public function existsComment($pasteid, $parentid, $commentid)
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{
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}
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/**
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* initialize zerobin
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*
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* @access private
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* @static
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* @return void
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*/
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private static function _init()
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{
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}
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}
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