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| 1 | <?php declare(strict_types=1); |
| 2 | /** |
| 3 | * PrivateBin |
| 4 | * |
| 5 | * a zero-knowledge paste bin |
| 6 | * |
| 7 | * @link https://github.com/PrivateBin/PrivateBin |
| 8 | * @copyright 2012 Sébastien SAUVAGE (sebsauvage.net) |
| 9 | * @license https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License |
| 10 | */ |
| 11 | |
| 12 | namespace PrivateBin; |
| 13 | |
| 14 | use PrivateBin\Model\Paste; |
| 15 | use PrivateBin\Persistence\PurgeLimiter; |
| 16 | |
| 17 | /** |
| 18 | * Model |
| 19 | * |
| 20 | * Factory of PrivateBin instance models. |
| 21 | */ |
| 22 | class Model |
| 23 | { |
| 24 | /** |
| 25 | * Configuration. |
| 26 | * |
| 27 | * @var Configuration |
| 28 | */ |
| 29 | private $_conf; |
| 30 | |
| 31 | /** |
| 32 | * Data storage. |
| 33 | * |
| 34 | * @var Data\AbstractData |
| 35 | */ |
| 36 | private $_store = null; |
| 37 | |
| 38 | /** |
| 39 | * Factory constructor. |
| 40 | * |
| 41 | * @param configuration $conf |
| 42 | */ |
| 43 | public function __construct(Configuration $conf) |
| 44 | { |
| 45 | $this->_conf = $conf; |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Get a paste, optionally a specific instance. |
| 50 | * |
| 51 | * @param string $pasteId |
| 52 | * @return Paste |
| 53 | */ |
| 54 | public function getPaste($pasteId = null) |
| 55 | { |
| 56 | $paste = new Paste($this->_conf, $this->getStore()); |
| 57 | if ($pasteId !== null) { |
| 58 | $paste->setId($pasteId); |
| 59 | } |
| 60 | return $paste; |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Checks if a purge is necessary and triggers it if yes. |
| 65 | */ |
| 66 | public function purge() |
| 67 | { |
| 68 | PurgeLimiter::setConfiguration($this->_conf); |
| 69 | PurgeLimiter::setStore($this->getStore()); |
| 70 | if (PurgeLimiter::canPurge()) { |
| 71 | $this->getStore()->purge($this->_conf->getKey('batchsize', 'purge')); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Gets, and creates if neccessary, a store object |
| 77 | * |
| 78 | * @return Data\AbstractData |
| 79 | */ |
| 80 | public function getStore() |
| 81 | { |
| 82 | if ($this->_store === null) { |
| 83 | $class = 'PrivateBin\\Data\\' . $this->_conf->getKey('class', 'model'); |
| 84 | $this->_store = new $class($this->_conf->getSection('model_options')); |
| 85 | } |
| 86 | return $this->_store; |
| 87 | } |
| 88 | } |