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<?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 1.2.1 |
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*/ |
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namespace PrivateBin\Model; |
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use Exception; |
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use Identicon\Identicon; |
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use PrivateBin\Persistence\TrafficLimiter; |
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use PrivateBin\Vizhash16x16; |
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/** |
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* Comment |
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* |
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* Model of a PrivateBin comment. |
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*/ |
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class Comment extends AbstractModel |
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{ |
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/** |
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* Instance's parent. |
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* |
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* @access private |
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* @var Paste |
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*/ |
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private $_paste; |
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/** |
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* Store the comment's data. |
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* |
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* @access public |
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* @throws Exception |
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*/ |
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public function store() |
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{ |
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// Make sure paste exists. |
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$pasteid = $this->getPaste()->getId(); |
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if (!$this->getPaste()->exists()) { |
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throw new Exception('Invalid data.', 67); |
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} |
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// Make sure the discussion is opened in this paste and in configuration. |
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if (!$this->getPaste()->isOpendiscussion() || !$this->_conf->getKey('discussion')) { |
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throw new Exception('Invalid data.', 68); |
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} |
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// Check for improbable collision. |
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if ($this->exists()) { |
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throw new Exception('You are unlucky. Try again.', 69); |
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} |
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$this->_data['meta']['created'] = time(); |
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// store comment |
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if ( |
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$this->_store->createComment( |
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$pasteid, |
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$this->getParentId(), |
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$this->getId(), |
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$this->_data |
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) === false |
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) { |
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throw new Exception('Error saving comment. Sorry.', 70); |
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} |
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} |
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/** |
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* Delete the comment. |
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* |
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* @access public |
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* @throws Exception |
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*/ |
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public function delete() |
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{ |
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throw new Exception('To delete a comment, delete its parent paste', 64); |
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} |
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/** |
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* Test if comment exists in store. |
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* |
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* @access public |
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* @return bool |
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*/ |
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public function exists() |
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{ |
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return $this->_store->existsComment( |
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$this->getPaste()->getId(), |
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$this->getParentId(), |
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$this->getId() |
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); |
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} |
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/** |
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* Set paste. |
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* |
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* @access public |
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* @param Paste $paste |
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* @throws Exception |
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*/ |
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public function setPaste(Paste $paste) |
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{ |
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$this->_paste = $paste; |
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$this->_data['pasteid'] = $paste->getId(); |
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} |
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/** |
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* Get paste. |
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* |
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* @access public |
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* @return Paste |
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*/ |
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public function getPaste() |
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{ |
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return $this->_paste; |
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} |
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/** |
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* Set parent ID. |
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* |
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* @access public |
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* @param string $id |
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* @throws Exception |
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*/ |
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public function setParentId($id) |
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{ |
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if (!self::isValidId($id)) { |
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throw new Exception('Invalid paste ID.', 65); |
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} |
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$this->_data['parentid'] = $id; |
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} |
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/** |
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* Get parent ID. |
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* |
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* @access public |
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* @return string |
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*/ |
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public function getParentId() |
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{ |
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if (!array_key_exists('parentid', $this->_data)) { |
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$this->_data['parentid'] = $this->getPaste()->getId(); |
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} |
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return $this->_data['parentid']; |
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} |
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/** |
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* Sanitizes data to conform with current configuration. |
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* |
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* @access protected |
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* @param array $data |
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* @return array |
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*/ |
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protected function _sanitize(array $data) |
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{ |
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// we generate an icon based on a SHA512 HMAC of the users IP, if configured |
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$icon = $this->_conf->getKey('icon'); |
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if ($icon != 'none') { |
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$pngdata = ''; |
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$hmac = TrafficLimiter::getHash(); |
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if ($icon == 'identicon') { |
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$identicon = new Identicon(); |
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$pngdata = $identicon->getImageDataUri($hmac, 16); |
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1 |
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} elseif ($icon == 'vizhash') { |
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$vh = new Vizhash16x16(); |
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$pngdata = 'data:image/png;base64,' . base64_encode( |
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$vh->generate($hmac) |
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); |
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} |
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if ($pngdata != '') { |
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if (!array_key_exists('meta', $data)) { |
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$data['meta'] = array(); |
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} |
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$data['meta']['icon'] = $pngdata; |
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} |
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} |
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return $data; |
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} |
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} |
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PrivateBin /
PrivateBin
