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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\feed;
use phpbb\config\config;
use phpbb\path_helper;
use phpbb\textformatter\s9e\renderer;
use phpbb\user;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Class with some helpful functions used in feeds
*/
class helper
{
/** @var config */
protected $config;
/** @var ContainerInterface */
protected $container;
/** @var path_helper */
protected $path_helper;
/** @var renderer */
protected $renderer;
/** @var user */
protected $user;
/**
* Constructor
*
* @param config $config Config object
* @param ContainerInterface $container Service container object
* @param path_helper $path_helper Path helper object
* @param renderer $renderer TextFormatter renderer object
* @param user $user User object
*/
public function __construct(config $config, ContainerInterface $container, path_helper $path_helper, renderer $renderer, user $user)
{
$this->config = $config;
$this->container = $container;
$this->path_helper = $path_helper;
$this->renderer = $renderer;
$this->user = $user;
}
/**
* Returns the board url (and caches it in the function)
*/
public function get_board_url()
{
static $board_url;
if (empty($board_url))
{
$board_url = generate_board_url();
}
return $board_url;
}
/**
* Run links through append_sid(), prepend generate_board_url() and remove session id
*/
public function append_sid($url, $params)
{
return append_sid($this->get_board_url() . '/' . $url, $params, true, '');
}
/**
* Generate ISO 8601 date string (RFC 3339)
*/
public function format_date($time)
{
static $zone_offset;
static $offset_string;
if (empty($offset_string))
{
$zone_offset = $this->user->create_datetime()->getOffset();
$offset_string = phpbb_format_timezone_offset($zone_offset);
}
return gmdate("Y-m-d\TH:i:s", $time + $zone_offset) . $offset_string;
}
/**
* Generate text content
*
* @param string $content is feed text content
* @param string $uid is bbcode_uid
* @param string $bitfield is bbcode bitfield
* @param int $options bbcode flag options
* @param int $forum_id is the forum id
* @param array $post_attachments is an array containing the attachments and their respective info
* @return string the html content to be printed for the feed
*/
public function generate_content($content, $uid, $bitfield, $options, $forum_id, $post_attachments)
{
if (empty($content))
{
return '';
}
// Setup our own quote_helper to remove all attributes from quotes
$this->renderer->configure_quote_helper($this->container->get('feed.quote_helper'));
$this->renderer->set_smilies_path($this->get_board_url() . '/' . $this->config['smilies_path']);
$content = generate_text_for_display($content, $uid, $bitfield, $options);
// Remove "Select all" link and mouse events
$content = str_replace('<a href="#" onclick="selectCode(this); return false;">' . $this->user->lang['SELECT_ALL_CODE'] . '</a>', '', $content);
$content = preg_replace('#(onkeypress|onclick)="(.*?)"#si', '', $content);
// Firefox does not support CSS for feeds, though
// Remove font sizes
// $content = preg_replace('#<span style="font-size: [0-9]+%; line-height: [0-9]+%;">([^>]+)</span>#iU', '\1', $content);
// Make text strong :P
// $content = preg_replace('#<span style="font-weight: bold?">(.*?)</span>#iU', '<strong>\1</strong>', $content);
// Italic
// $content = preg_replace('#<span style="font-style: italic?">([^<]+)</span>#iU', '<em>\1</em>', $content);
// Underline
// $content = preg_replace('#<span style="text-decoration: underline?">([^<]+)</span>#iU', '<u>\1</u>', $content);
// Remove embed Windows Media Streams
$content = preg_replace( '#<\!--\[if \!IE\]>-->([^[]+)<\!--<!\[endif\]-->#si', '', $content);
// Do not use < and >, because we want to retain code contained in [code][/code]
// Remove embed and objects
$content = preg_replace( '#<(object|embed)(.*?) (value|src)=(.*?) ([^[]+)(object|embed)>#si',' <a href=$4 target="_blank"><strong>$1</strong></a> ',$content);
// Remove some specials html tag, because somewhere there are a mod to allow html tags ;)
$content = preg_replace( '#<(script|iframe)([^[]+)\1>#siU', ' <strong>$1</strong> ', $content);
// Parse inline images to display with the feed
if (!empty($post_attachments))
{
$update_count = array();
parse_attachments($forum_id, $content, $post_attachments, $update_count);
$content .= implode('<br />', $post_attachments);
// Convert attachments' relative path to absolute path
$content = str_replace($this->path_helper->get_web_root_path() . 'download/file.' . $this->path_helper->get_php_ext(), $this->get_board_url() . '/download/file.' . $this->path_helper->get_php_ext(), $content);
}
// Remove Comments from inline attachments [ia]
$content = preg_replace('#<dd>(.*?)</dd>#','',$content);
// Replace some entities with their unicode counterpart
$entities = array(
' ' => "\xC2\xA0",
'•' => "\xE2\x80\xA2",
'·' => "\xC2\xB7",
'©' => "\xC2\xA9",
);
$content = str_replace(array_keys($entities), array_values($entities), $content);
// Remove CDATA blocks. ;)
$content = preg_replace('#\<\!\[CDATA\[(.*?)\]\]\>#s', '', $content);
// Other control characters
$content = preg_replace('#(?:[\x00-\x1F\x7F]+|(?:\xC2[\x80-\x9F])+)#', '', $content);
return $content;
}
}
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