300 lines
7.8 KiB
PHP
300 lines
7.8 KiB
PHP
<?php
|
|
/**
|
|
* ZeroBin
|
|
*
|
|
* a zero-knowledge paste bin
|
|
*
|
|
* @link http://sebsauvage.net/wiki/doku.php?id=php:zerobin
|
|
* @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
|
|
* @license http://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
|
|
* @version 0.21.1
|
|
*/
|
|
|
|
/**
|
|
* model_paste
|
|
*
|
|
* Model of a ZeroBin paste.
|
|
*/
|
|
class model_paste extends model_abstract
|
|
{
|
|
/**
|
|
* Get paste data.
|
|
*
|
|
* @access public
|
|
* @throws Exception
|
|
* @return stdObject
|
|
*/
|
|
public function get()
|
|
{
|
|
$this->_data = $this->_store->read($this->getId());
|
|
// See if paste has expired and delete it if neccessary.
|
|
if (property_exists($this->_data->meta, 'expire_date'))
|
|
{
|
|
if ($this->_data->meta->expire_date < time())
|
|
{
|
|
$this->delete();
|
|
throw new Exception(zerobin::GENERIC_ERROR, 63);
|
|
}
|
|
// We kindly provide the remaining time before expiration (in seconds)
|
|
$this->_data->meta->remaining_time = $this->_data->meta->expire_date - time();
|
|
}
|
|
|
|
// set formatter for for the view.
|
|
if (!property_exists($this->_data->meta, 'formatter'))
|
|
{
|
|
// support < 0.21 syntax highlighting
|
|
if (property_exists($this->_data->meta, 'syntaxcoloring') && $this->_data->meta->syntaxcoloring === true)
|
|
{
|
|
$this->_data->meta->formatter = 'syntaxhighlighting';
|
|
}
|
|
else
|
|
{
|
|
$this->_data->meta->formatter = $this->_conf->getKey('defaultformatter');
|
|
}
|
|
}
|
|
return $this->_data;
|
|
}
|
|
|
|
/**
|
|
* Store the paste's data.
|
|
*
|
|
* @access public
|
|
* @throws Exception
|
|
* @return void
|
|
*/
|
|
public function store()
|
|
{
|
|
// Check for improbable collision.
|
|
if ($this->exists())
|
|
throw new Exception('You are unlucky. Try again.', 75);
|
|
|
|
$this->_data->meta->postdate = time();
|
|
|
|
// store paste
|
|
if (
|
|
$this->_store->create(
|
|
$this->getId(),
|
|
json_decode(json_encode($this->_data), true)
|
|
) === false
|
|
) throw new Exception('Error saving paste. Sorry.', 76);
|
|
}
|
|
|
|
/**
|
|
* Delete the paste.
|
|
*
|
|
* @access public
|
|
* @throws Exception
|
|
* @return void
|
|
*/
|
|
public function delete()
|
|
{
|
|
$this->_store->delete($this->getId());
|
|
}
|
|
|
|
/**
|
|
* Test if paste exists in store.
|
|
*
|
|
* @access public
|
|
* @return bool
|
|
*/
|
|
public function exists()
|
|
{
|
|
return $this->_store->exists($this->getId());
|
|
}
|
|
|
|
/**
|
|
* Get a comment, optionally a specific instance.
|
|
*
|
|
* @access public
|
|
* @param string $parentId
|
|
* @param string $commentId
|
|
* @throws Exception
|
|
* @return model_comment
|
|
*/
|
|
public function getComment($parentId, $commentId = null)
|
|
{
|
|
if (!$this->exists())
|
|
{
|
|
throw new Exception('Invalid data.', 62);
|
|
}
|
|
$comment = new model_comment($this->_conf, $this->_store);
|
|
$comment->setPaste($this);
|
|
$comment->setParentId($parentId);
|
|
if ($commentId !== null) $comment->setId($commentId);
|
|
return $comment;
|
|
}
|
|
|
|
/**
|
|
* Get all comments, if any.
|
|
*
|
|
* @access public
|
|
* @return array
|
|
*/
|
|
public function getComments()
|
|
{
|
|
return $this->_store->readComments($this->getId());
|
|
}
|
|
|
|
/**
|
|
* Generate the "delete" token.
|
|
*
|
|
* The token is the hmac of the pastes ID signed with the server salt.
|
|
* The paste can be deleted by calling:
|
|
* http://example.com/zerobin/?pasteid=<pasteid>&deletetoken=<deletetoken>
|
|
*
|
|
* @access public
|
|
* @return string
|
|
*/
|
|
public function getDeleteToken()
|
|
{
|
|
return hash_hmac('sha1', $this->getId(), serversalt::get());
|
|
}
|
|
|
|
/**
|
|
* Set paste's attachment.
|
|
*
|
|
* @access public
|
|
* @param string $attachment
|
|
* @throws Exception
|
|
* @return void
|
|
*/
|
|
public function setAttachment($attachment)
|
|
{
|
|
if (!$this->_conf->getKey('fileupload') || !sjcl::isValid($attachment))
|
|
throw new Exception('Invalid attachment.', 71);
|
|
$this->_data->meta->attachment = $attachment;
|
|
}
|
|
|
|
/**
|
|
* Set paste's attachment name.
|
|
*
|
|
* @access public
|
|
* @param string $attachmentname
|
|
* @throws Exception
|
|
* @return void
|
|
*/
|
|
public function setAttachmentName($attachmentname)
|
|
{
|
|
if (!$this->_conf->getKey('fileupload') || !sjcl::isValid($attachmentname))
|
|
throw new Exception('Invalid attachment.', 72);
|
|
$this->_data->meta->attachmentname = $attachmentname;
|
|
}
|
|
|
|
/**
|
|
* Set paste expiration.
|
|
*
|
|
* @access public
|
|
* @param string $expiration
|
|
* @return void
|
|
*/
|
|
public function setExpiration($expiration)
|
|
{
|
|
$expire_options = $this->_conf->getSection('expire_options');
|
|
if (array_key_exists($expiration, $expire_options))
|
|
{
|
|
$expire = $expire_options[$expiration];
|
|
}
|
|
else
|
|
{
|
|
// using getKey() to ensure a default value is present
|
|
$expire = $this->_conf->getKey($this->_conf->getKey('default', 'expire'), 'expire_options');
|
|
}
|
|
if ($expire > 0) $this->_data->meta->expire_date = time() + $expire;
|
|
}
|
|
|
|
/**
|
|
* Set paste's burn-after-reading type.
|
|
*
|
|
* @access public
|
|
* @param string $burnafterreading
|
|
* @throws Exception
|
|
* @return void
|
|
*/
|
|
public function setBurnafterreading($burnafterreading = '1')
|
|
{
|
|
if ($burnafterreading === '0')
|
|
{
|
|
$this->_data->meta->burnafterreading = false;
|
|
}
|
|
else
|
|
{
|
|
if ($burnafterreading !== '1')
|
|
throw new Exception('Invalid data.', 73);
|
|
$this->_data->meta->burnafterreading = true;
|
|
$this->_data->meta->opendiscussion = false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set paste's discussion state.
|
|
*
|
|
* @access public
|
|
* @param string $opendiscussion
|
|
* @throws Exception
|
|
* @return void
|
|
*/
|
|
public function setOpendiscussion($opendiscussion = '1')
|
|
{
|
|
if (
|
|
!$this->_conf->getKey('discussion') ||
|
|
$this->isBurnafterreading() ||
|
|
$opendiscussion === '0'
|
|
)
|
|
{
|
|
$this->_data->meta->opendiscussion = false;
|
|
}
|
|
else
|
|
{
|
|
if ($opendiscussion !== '1')
|
|
throw new Exception('Invalid data.', 74);
|
|
$this->_data->meta->opendiscussion = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set paste's format.
|
|
*
|
|
* @access public
|
|
* @param string $format
|
|
* @throws Exception
|
|
* @return void
|
|
*/
|
|
public function setFormatter($format)
|
|
{
|
|
if (!array_key_exists($format, $this->_conf->getSection('formatter_options')))
|
|
{
|
|
$format = $this->_conf->getKey('defaultformatter');
|
|
}
|
|
$this->_data->meta->formatter = $format;
|
|
}
|
|
|
|
/**
|
|
* Check if paste is of burn-after-reading type.
|
|
*
|
|
* @access public
|
|
* @throws Exception
|
|
* @return boolean
|
|
*/
|
|
public function isBurnafterreading()
|
|
{
|
|
if (!property_exists($this->_data, 'data')) $this->get();
|
|
return property_exists($this->_data->meta, 'burnafterreading') &&
|
|
$this->_data->meta->burnafterreading === true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Check if paste has discussions enabled.
|
|
*
|
|
* @access public
|
|
* @throws Exception
|
|
* @return boolean
|
|
*/
|
|
public function isOpendiscussion()
|
|
{
|
|
if (!property_exists($this->_data, 'data')) $this->get();
|
|
return property_exists($this->_data->meta, 'opendiscussion') &&
|
|
$this->_data->meta->opendiscussion === true;
|
|
}
|
|
}
|