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msd2/phpBB3/phpbb/feed/helper.php

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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 &lt; and &gt;, 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(
+			'&nbsp;'	=> "\xC2\xA0",
+			'&bull;'	=> "\xE2\x80\xA2",
+			'&middot;'	=> "\xC2\xB7",
+			'&copy;'	=> "\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;
+	}
+}