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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\textformatter\s9e;
use s9e\TextFormatter\Parser\AttributeFilters\UrlFilter;
use s9e\TextFormatter\Parser\Logger;
/**
* s9e\TextFormatter\Parser adapter
*/
class parser implements \phpbb\textformatter\parser_interface
{
/**
* @var \phpbb\event\dispatcher_interface
*/
protected $dispatcher;
/**
* @var \s9e\TextFormatter\Parser
*/
protected $parser;
/**
* Constructor
*
* @param \phpbb\cache\driver_interface $cache
* @param string $key Cache key
* @param factory $factory
* @param \phpbb\event\dispatcher_interface $dispatcher
*/
public function __construct(\phpbb\cache\driver\driver_interface $cache, $key, factory $factory, \phpbb\event\dispatcher_interface $dispatcher)
{
$parser = $cache->get($key);
if (!$parser)
{
$objects = $factory->regenerate();
$parser = $objects['parser'];
}
$this->dispatcher = $dispatcher;
$this->parser = $parser;
$parser = $this;
/**
* Configure the parser service
*
* Can be used to:
* - toggle features or BBCodes
* - register variables or custom parsers in the s9e\TextFormatter parser
* - configure the s9e\TextFormatter parser's runtime settings
*
* @event core.text_formatter_s9e_parser_setup
* @var \phpbb\textformatter\s9e\parser parser This parser service
* @since 3.2.0-a1
*/
$vars = array('parser');
extract($dispatcher->trigger_event('core.text_formatter_s9e_parser_setup', compact($vars)));
}
/**
* {@inheritdoc}
*/
public function parse($text)
{
$parser = $this;
/**
* Modify a text before it is parsed
*
* @event core.text_formatter_s9e_parse_before
* @var \phpbb\textformatter\s9e\parser parser This parser service
* @var string text The original text
* @since 3.2.0-a1
*/
$vars = array('parser', 'text');
extract($this->dispatcher->trigger_event('core.text_formatter_s9e_parse_before', compact($vars)));
$xml = $this->parser->parse($text);
/**
* Modify a parsed text in its XML form
*
* @event core.text_formatter_s9e_parse_after
* @var \phpbb\textformatter\s9e\parser parser This parser service
* @var string xml The parsed text, in XML
* @since 3.2.0-a1
*/
$vars = array('parser', 'xml');
extract($this->dispatcher->trigger_event('core.text_formatter_s9e_parse_after', compact($vars)));
return $xml;
}
/**
* {@inheritdoc}
*/
public function disable_bbcode($name)
{
$this->parser->disableTag(strtoupper($name));
}
/**
* {@inheritdoc}
*/
public function disable_bbcodes()
{
$this->parser->disablePlugin('BBCodes');
}
/**
* {@inheritdoc}
*/
public function disable_censor()
{
$this->parser->disablePlugin('Censor');
}
/**
* {@inheritdoc}
*/
public function disable_magic_url()
{
$this->parser->disablePlugin('Autoemail');
$this->parser->disablePlugin('Autolink');
}
/**
* {@inheritdoc}
*/
public function disable_smilies()
{
$this->parser->disablePlugin('Emoticons');
$this->parser->disablePlugin('Emoji');
}
/**
* {@inheritdoc}
*/
public function enable_bbcode($name)
{
$this->parser->enableTag(strtoupper($name));
}
/**
* {@inheritdoc}
*/
public function enable_bbcodes()
{
$this->parser->enablePlugin('BBCodes');
}
/**
* {@inheritdoc}
*/
public function enable_censor()
{
$this->parser->enablePlugin('Censor');
}
/**
* {@inheritdoc}
*/
public function enable_magic_url()
{
$this->parser->enablePlugin('Autoemail');
$this->parser->enablePlugin('Autolink');
}
/**
* {@inheritdoc}
*/
public function enable_smilies()
{
$this->parser->enablePlugin('Emoticons');
$this->parser->enablePlugin('Emoji');
}
/**
* {@inheritdoc}
*
* This will convert the log entries found in s9e\TextFormatter's logger into phpBB error
* messages
*/
public function get_errors()
{
$errors = array();
foreach ($this->parser->getLogger()->getLogs() as $entry)
{
list(, $msg, $context) = $entry;
if ($msg === 'Tag limit exceeded')
{
if ($context['tagName'] === 'E')
{
$errors[] = array('TOO_MANY_SMILIES', $context['tagLimit']);
}
else if ($context['tagName'] === 'URL')
{
$errors[] = array('TOO_MANY_URLS', $context['tagLimit']);
}
}
else if ($msg === 'MAX_FONT_SIZE_EXCEEDED')
{
$errors[] = array($msg, $context['max_size']);
}
else if (preg_match('/^MAX_(?:FLASH|IMG)_(HEIGHT|WIDTH)_EXCEEDED$/D', $msg, $m))
{
$errors[] = array($msg, $context['max_' . strtolower($m[1])]);
}
else if ($msg === 'Tag is disabled')
{
$name = strtolower($context['tag']->getName());
$errors[] = array('UNAUTHORISED_BBCODE', '[' . $name . ']');
}
else if ($msg === 'UNABLE_GET_IMAGE_SIZE')
{
$errors[] = array($msg);
}
}
// Deduplicate error messages. array_unique() only works on strings so we have to serialize
if (!empty($errors))
{
$errors = array_map('unserialize', array_unique(array_map('serialize', $errors)));
}
return $errors;
}
/**
* Return the instance of s9e\TextFormatter\Parser used by this object
*
* @return \s9e\TextFormatter\Parser
*/
public function get_parser()
{
return $this->parser;
}
/**
* {@inheritdoc}
*/
public function set_var($name, $value)
{
if ($name === 'max_smilies')
{
$this->parser->setTagLimit('E', $value ?: PHP_INT_MAX);
}
else if ($name === 'max_urls')
{
$this->parser->setTagLimit('URL', $value ?: PHP_INT_MAX);
}
else
{
$this->parser->registeredVars[$name] = $value;
}
}
/**
* {@inheritdoc}
*/
public function set_vars(array $vars)
{
foreach ($vars as $name => $value)
{
$this->set_var($name, $value);
}
}
/**
* Filter a flash object's height
*
* @see bbcode_firstpass::bbcode_flash()
*
* @param string $height
* @param integer $max_height
* @param Logger $logger
* @return mixed Original value if valid, FALSE otherwise
*/
static public function filter_flash_height($height, $max_height, Logger $logger)
{
if ($max_height && $height > $max_height)
{
$logger->err('MAX_FLASH_HEIGHT_EXCEEDED', array('max_height' => $max_height));
return false;
}
return $height;
}
/**
* Filter a flash object's width
*
* @see bbcode_firstpass::bbcode_flash()
*
* @param string $width
* @param integer $max_width
* @param Logger $logger
* @return mixed Original value if valid, FALSE otherwise
*/
static public function filter_flash_width($width, $max_width, Logger $logger)
{
if ($max_width && $width > $max_width)
{
$logger->err('MAX_FLASH_WIDTH_EXCEEDED', array('max_width' => $max_width));
return false;
}
return $width;
}
/**
* Filter the value used in a [size] BBCode
*
* @see bbcode_firstpass::bbcode_size()
*
* @param string $size Original size
* @param integer $max_size Maximum allowed size
* @param Logger $logger
* @return mixed Original value if valid, FALSE otherwise
*/
static public function filter_font_size($size, $max_size, Logger $logger)
{
if ($max_size && $size > $max_size)
{
$logger->err('MAX_FONT_SIZE_EXCEEDED', array('max_size' => $max_size));
return false;
}
if ($size < 1)
{
return false;
}
return $size;
}
/**
* Filter an image's URL to enforce restrictions on its dimensions
*
* @see bbcode_firstpass::bbcode_img()
*
* @param string $url Original URL
* @param array $url_config Config used by the URL filter
* @param Logger $logger
* @param integer $max_height Maximum height allowed
* @param integer $max_width Maximum width allowed
* @return string|bool Original value if valid, FALSE otherwise
*/
static public function filter_img_url($url, array $url_config, Logger $logger, $max_height, $max_width)
{
// Validate the URL
$url = UrlFilter::filter($url, $url_config, $logger);
if ($url === false)
{
return false;
}
if ($max_height || $max_width)
{
$imagesize = new \FastImageSize\FastImageSize();
$size_info = $imagesize->getImageSize($url);
if ($size_info === false)
{
$logger->err('UNABLE_GET_IMAGE_SIZE');
return false;
}
if ($max_height && $max_height < $size_info['height'])
{
$logger->err('MAX_IMG_HEIGHT_EXCEEDED', array('max_height' => $max_height));
return false;
}
if ($max_width && $max_width < $size_info['width'])
{
$logger->err('MAX_IMG_WIDTH_EXCEEDED', array('max_width' => $max_width));
return false;
}
}
return $url;
}
}
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