paste.chapril.org-privatebin/lib/model.php

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<?php
/**
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* PrivateBin
*
* a zero-knowledge paste bin
*
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* @link https://github.com/PrivateBin/PrivateBin
* @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
* @license https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
* @version 0.22
*/
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namespace PrivateBin;
use PrivateBin\model\paste;
/**
* model
*
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* Factory of PrivateBin instance models.
*/
class model
{
/**
* Configuration.
*
* @var configuration
*/
private $_conf;
/**
* Data storage.
*
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* @var privatebin_abstract
*/
private $_store = null;
/**
* Factory constructor.
*
* @param configuration $conf
* @return void
*/
public function __construct(configuration $conf)
{
$this->_conf = $conf;
}
/**
* Get a paste, optionally a specific instance.
*
* @param string $pasteId
* @return model_paste
*/
public function getPaste($pasteId = null)
{
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$paste = new paste($this->_conf, $this->_getStore());
if ($pasteId !== null) $paste->setId($pasteId);
return $paste;
}
/**
* Checks if a purge is necessary and triggers it if yes.
*
* @return void
*/
public function purge()
{
purgelimiter::setConfiguration($this->_conf);
if (purgelimiter::canPurge())
{
$this->_getStore()->purge($this->_conf->getKey('batchsize', 'purge'));
}
}
/**
* Gets, and creates if neccessary, a store object
*
* @return privatebin_abstract
*/
private function _getStore()
{
if ($this->_store === null)
{
$this->_store = forward_static_call(
array($this->_conf->getKey('class', 'model'), 'getInstance'),
$this->_conf->getSection('model_options')
);
}
return $this->_store;
}
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}