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msd2/phpBB3/phpbb/feed/topic.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\feed\exception\no_feed_exception;
+use phpbb\feed\exception\no_topic_exception;
+use phpbb\feed\exception\unauthorized_forum_exception;
+use phpbb\feed\exception\unauthorized_topic_exception;
+
+/**
+ * Topic feed for a specific topic
+ *
+ * This will give you the last {$this->num_items} posts made within this topic.
+ */
+class topic extends post_base
+{
+	protected $topic_id		= 0;
+	protected $forum_id		= 0;
+	protected $topic_data	= array();
+
+	/**
+	 * Set the Topic ID
+	 *
+	 * @param int	$topic_id			Topic ID
+	 * @return	\phpbb\feed\topic
+	 */
+	public function set_topic_id($topic_id)
+	{
+		$this->topic_id = (int) $topic_id;
+
+		return $this;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function open()
+	{
+		$sql = 'SELECT f.forum_options, f.forum_password, t.topic_id, t.forum_id, t.topic_visibility, t.topic_title, t.topic_time, t.topic_views, t.topic_posts_approved, t.topic_type
+			FROM ' . TOPICS_TABLE . ' t
+			LEFT JOIN ' . FORUMS_TABLE . ' f
+				ON (f.forum_id = t.forum_id)
+			WHERE t.topic_id = ' . $this->topic_id;
+		$result = $this->db->sql_query($sql);
+		$this->topic_data = $this->db->sql_fetchrow($result);
+		$this->db->sql_freeresult($result);
+
+		if (empty($this->topic_data))
+		{
+			throw new no_topic_exception($this->topic_id);
+		}
+
+		$this->forum_id = (int) $this->topic_data['forum_id'];
+
+		// Make sure topic is either approved or user authed
+		if ($this->topic_data['topic_visibility'] != ITEM_APPROVED && !$this->auth->acl_get('m_approve', $this->forum_id))
+		{
+			if ($this->user->data['user_id'] != ANONYMOUS)
+			{
+				send_status_line(403, 'Forbidden');
+			}
+			else
+			{
+				send_status_line(401, 'Unauthorized');
+			}
+			throw new unauthorized_topic_exception($this->topic_id);
+		}
+
+		// Make sure forum is not excluded from feed
+		if (phpbb_optionget(FORUM_OPTION_FEED_EXCLUDE, $this->topic_data['forum_options']))
+		{
+			throw new no_feed_exception();
+		}
+
+		// Make sure we can read this forum
+		if (!$this->auth->acl_get('f_read', $this->forum_id))
+		{
+			if ($this->user->data['user_id'] != ANONYMOUS)
+			{
+				send_status_line(403, 'Forbidden');
+			}
+			else
+			{
+				send_status_line(401, 'Unauthorized');
+			}
+			throw new unauthorized_forum_exception($this->forum_id);
+		}
+
+		// Make sure forum is not passworded or user is authed
+		if ($this->topic_data['forum_password'])
+		{
+			$forum_ids_passworded = $this->get_passworded_forums();
+
+			if (isset($forum_ids_passworded[$this->forum_id]))
+			{
+				if ($this->user->data['user_id'] != ANONYMOUS)
+				{
+					send_status_line(403, 'Forbidden');
+				}
+				else
+				{
+					send_status_line(401, 'Unauthorized');
+				}
+				throw new unauthorized_forum_exception($this->forum_id);
+			}
+
+			unset($forum_ids_passworded);
+		}
+
+		parent::open();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	protected function get_sql()
+	{
+		parent::fetch_attachments();
+
+		$this->sql = array(
+			'SELECT'	=>	'p.post_id, p.post_time, p.post_edit_time, p.post_visibility, p.post_subject, p.post_text, p.bbcode_bitfield, p.bbcode_uid, p.enable_bbcode, p.enable_smilies, p.enable_magic_url, p.post_attachment, ' .
+				'u.username, u.user_id',
+			'FROM'		=> array(
+				POSTS_TABLE		=> 'p',
+				USERS_TABLE		=> 'u',
+			),
+			'WHERE'		=> 'p.topic_id = ' . $this->topic_id . '
+								AND ' . $this->content_visibility->get_visibility_sql('post', $this->forum_id, 'p.') . '
+								AND p.poster_id = u.user_id',
+			'ORDER_BY'	=> 'p.post_time DESC, p.post_id DESC',
+		);
+
+		return true;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function adjust_item(&$item_row, &$row)
+	{
+		parent::adjust_item($item_row, $row);
+
+		$item_row['forum_id'] = $this->forum_id;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function get_item()
+	{
+		return ($row = parent::get_item()) ? array_merge($this->topic_data, $row) : $row;
+	}
+}