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| <?php | |
| /** | |
| * PrivateBin | |
| * | |
| * a zero-knowledge paste bin | |
| * | |
| * @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 1.5.2 | |
| */ | |
| namespace PrivateBin\Model; | |
| use Exception; | |
| use Identicon\Identicon; | |
| use Jdenticon\Identicon as Jdenticon; | |
| use PrivateBin\Persistence\TrafficLimiter; | |
| use PrivateBin\Vizhash16x16; | |
| /** | |
| * Comment | |
| * | |
| * Model of a PrivateBin comment. | |
| */ | |
| class Comment extends AbstractModel | |
| { | |
| /** | |
| * Instance's parent. | |
| * | |
| * @access private | |
| * @var Paste | |
| */ | |
| private $_paste; | |
| /** | |
| * Store the comment's data. | |
| * | |
| * @access public | |
| * @throws Exception | |
| */ | |
| public function store() | |
| { | |
| // Make sure paste exists. | |
| $pasteid = $this->getPaste()->getId(); | |
| if (!$this->getPaste()->exists()) { | |
| throw new Exception('Invalid data.', 67); | |
| } | |
| // Make sure the discussion is opened in this paste and in configuration. | |
| if (!$this->getPaste()->isOpendiscussion() || !$this->_conf->getKey('discussion')) { | |
| throw new Exception('Invalid data.', 68); | |
| } | |
| // Check for improbable collision. | |
| if ($this->exists()) { | |
| throw new Exception('You are unlucky. Try again.', 69); | |
| } | |
| $this->_data['meta']['created'] = time(); | |
| // store comment | |
| if ( | |
| $this->_store->createComment( | |
| $pasteid, | |
| $this->getParentId(), | |
| $this->getId(), | |
| $this->_data | |
| ) === false | |
| ) { | |
| throw new Exception('Error saving comment. Sorry.', 70); | |
| } | |
| } | |
| /** | |
| * Delete the comment. | |
| * | |
| * @access public | |
| * @throws Exception | |
| */ | |
| public function delete() | |
| { | |
| throw new Exception('To delete a comment, delete its parent paste', 64); | |
| } | |
| /** | |
| * Test if comment exists in store. | |
| * | |
| * @access public | |
| * @return bool | |
| */ | |
| public function exists() | |
| { | |
| return $this->_store->existsComment( | |
| $this->getPaste()->getId(), | |
| $this->getParentId(), | |
| $this->getId() | |
| ); | |
| } | |
| /** | |
| * Set paste. | |
| * | |
| * @access public | |
| * @param Paste $paste | |
| * @throws Exception | |
| */ | |
| public function setPaste(Paste $paste) | |
| { | |
| $this->_paste = $paste; | |
| $this->_data['pasteid'] = $paste->getId(); | |
| } | |
| /** | |
| * Get paste. | |
| * | |
| * @access public | |
| * @return Paste | |
| */ | |
| public function getPaste() | |
| { | |
| return $this->_paste; | |
| } | |
| /** | |
| * Set parent ID. | |
| * | |
| * @access public | |
| * @param string $id | |
| * @throws Exception | |
| */ | |
| public function setParentId($id) | |
| { | |
| if (!self::isValidId($id)) { | |
| throw new Exception('Invalid paste ID.', 65); | |
| } | |
| $this->_data['parentid'] = $id; | |
| } | |
| /** | |
| * Get parent ID. | |
| * | |
| * @access public | |
| * @return string | |
| */ | |
| public function getParentId() | |
| { | |
| if (!array_key_exists('parentid', $this->_data)) { | |
| $this->_data['parentid'] = $this->getPaste()->getId(); | |
| } | |
| return $this->_data['parentid']; | |
| } | |
| /** | |
| * Sanitizes data to conform with current configuration. | |
| * | |
| * @access protected | |
| * @param array $data | |
| * @return array | |
| */ | |
| protected function _sanitize(array $data) | |
| { | |
| // we generate an icon based on a SHA512 HMAC of the users IP, if configured | |
| $icon = $this->_conf->getKey('icon'); | |
| if ($icon != 'none') { | |
| $pngdata = ''; | |
| $hmac = TrafficLimiter::getHash(); | |
| if ($icon == 'identicon') { | |
| $identicon = new Identicon(); | |
| $pngdata = $identicon->getImageDataUri($hmac, 16); | |
| } elseif ($icon == 'jdenticon') { | |
| $jdenticon = new Jdenticon(array( | |
| 'hash' => $hmac, | |
| 'size' => 16, | |
| 'style' => array( | |
| 'backgroundColor' => '#fff0', // fully transparent, for dark mode | |
| 'padding' => 0, | |
| ), | |
| )); | |
| $pngdata = $jdenticon->getImageDataUri('png'); | |
| } elseif ($icon == 'vizhash') { | |
| $vh = new Vizhash16x16(); | |
| $pngdata = 'data:image/png;base64,' . base64_encode( | |
| $vh->generate($hmac) | |
| ); | |
| } | |
| if ($pngdata != '') { | |
| if (!array_key_exists('meta', $data)) { | |
| $data['meta'] = array(); | |
| } | |
| $data['meta']['icon'] = $pngdata; | |
| } | |
| } | |
| return $data; | |
| } | |
| } |