vBulletin LTS

					if ($this->errors)
					{
						// if we already have errors, the save won't happen, so rollback now...
						$this->floodcheck->rollback();
					}
					else
					{
						// ...or, in case we have a new error
						$this->set_failure_callback(array(&$this->floodcheck, 'rollback'));
					}
				}
			}

			// duplication check
			if ($this->registry->options['ssgti_prevent_duplposts_floodchecktime'] > 0 AND empty($this->info['preview']) AND empty($this->info['is_automated']) AND $this->fetch_field('userid', 'post'))
			{
				if (!$this->info['user'])
				{
					$this->info['user'] = fetch_userinfo($this->fetch_field('userid', 'post'));
				}
				if (!$user)
				{
					$user =& $this->info['user'];
				}
				if ($user['lastpost'] <= TIMENOW AND
					!can_moderate($this->info['forum']['forumid'], '', $user['userid'], $user['usergroupid'] . (trim($user['membergroupids']) ? ",$user[membergroupids]" : '')))
				{
					$forumid = $this->fetch_field('forumid');
					if (!$forumid)
					{
						$forumid = $this->info['forum']['forumid'];
					}
					$threadid = $this->fetch_field('threadid');
					$type = ($threadid > 0 ? 'reply' : 'thread');
					$userid = $this->fetch_field('postuserid');
					if (!$userid)
					{
						$userid = $this->fetch_field('userid');
					}
					$query_join = "";
					if ($type == "thread")
					{
						$query_join = "LEFT JOIN " . TABLE_PREFIX . "thread AS thread USING (threadid)";
					}
					$suspection_period = TIMENOW - $this->registry->options['ssgti_prevent_duplposts_floodchecktime'];
					// Fetch all suspect duplicate posts
					$suspects = $this->dbobject->query_read_slave("
						SELECT " . ($type == "thread" ? "thread.forumid, " : "") . "post.threadid, post.title, post.pagetext, post.userid, post.dateline
						FROM " . TABLE_PREFIX . "post AS post
						$query_join
						WHERE post.userid = " . intval($this->registry->userinfo['userid']) . "
							AND post.dateline > $suspection_period
							ORDER BY post.dateline DESC
					");
					while ($suspect = $this->dbobject->fetch_array($suspects))
					{
						$current_post_hash = md5(($type == "thread" ? $forumid : $threadid) . $this->fetch_field('title') . $this->fetch_field('pagetext', 'post') . $userid);
						$duplicated_post_hash = md5(($type == "thread" ? $suspect['forumid'] : $suspect['threadid']) . $suspect['title'] . $suspect['pagetext'] . $suspect['userid']);
						if ($current_post_hash == $duplicated_post_hash)
						{
							$duplication_wait = $this->registry->options['ssgti_prevent_duplposts_floodchecktime'] - (TIMENOW - $suspect['dateline']);
							$this->error('postduplicatecheck', $this->registry->options['ssgti_prevent_duplposts_floodchecktime'], $duplication_wait);
							return false;
						}
					}
				}
			}