95 lines
2.0 KiB
PHP
95 lines
2.0 KiB
PHP
<?php
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/**
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* PrivateBin
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*
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* a zero-knowledge paste bin
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*
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* @link https://github.com/PrivateBin/PrivateBin
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* @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
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* @license https://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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namespace PrivateBin;
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use PrivateBin\Data;
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use PrivateBin\Model\Paste;
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use PrivateBin\Persistence\PurgeLimiter;
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/**
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* Model
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*
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* Factory of PrivateBin instance models.
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*/
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class Model
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{
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/**
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* Configuration.
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*
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* @var Configuration
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*/
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private $_conf;
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/**
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* Data storage.
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*
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* @var AbstractData
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*/
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private $_store = null;
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/**
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* Factory constructor.
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*
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* @param configuration $conf
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* @return void
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*/
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public function __construct(Configuration $conf)
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{
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$this->_conf = $conf;
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}
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/**
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* Get a paste, optionally a specific instance.
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*
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* @param string $pasteId
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* @return Paste
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*/
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public function getPaste($pasteId = null)
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{
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$paste = new Paste($this->_conf, $this->_getStore());
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if ($pasteId !== null) {
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$paste->setId($pasteId);
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}
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return $paste;
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}
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/**
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* Checks if a purge is necessary and triggers it if yes.
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*
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* @return void
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*/
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public function purge()
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{
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PurgeLimiter::setConfiguration($this->_conf);
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if (PurgeLimiter::canPurge()) {
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$this->_getStore()->purge($this->_conf->getKey('batchsize', 'purge'));
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}
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}
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/**
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* Gets, and creates if neccessary, a store object
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*
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* @return AbstractData
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*/
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private function _getStore()
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{
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if ($this->_store === null) {
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$this->_store = forward_static_call(
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'PrivateBin\\Data\\' . $this->_conf->getKey('class', 'model') . '::getInstance',
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$this->_conf->getSection('model_options')
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);
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}
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return $this->_store;
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}
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}
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