php-e107/comment.php

<?php
/*
 * e107 website system
 *
 * Copyright (C) 2008-2010 e107 Inc (e107.org)
 * Released under the terms and conditions of the
 * GNU General Public License (http://www.gnu.org/licenses/gpl.txt)
 *
 * Comment handling generic interface
 *
 * $URL$
 * $Id$
 */


/**
 *	@package    e107
 *	@subpackage	user
 *	@version 	$Id$;
 *
 *	Display comments
 */

require_once('class2.php');
include_lan(e_LANGUAGEDIR.e_LANGUAGE.'/lan_'.e_PAGE);

//	print_r($_POST);
//	exit;

if(e_AJAX_REQUEST)
{

	if(vartrue($_POST['comment']) && USERID)
	{
		$pid = intval(varset($_POST['pid'], 0)); // ID of the specific comment being edited (nested comments - replies)
	
		$clean_authorname = $_POST['author_name'];
		$clean_comment = $_POST['comment'];
		$clean_subject = $_POST['subject'];
		
		$newid = e107::getComment()->enter_comment($clean_authorname, $clean_comment, $_POST['table'], intval($_POST['itemid']), $pid, $clean_subject);
	
		if($newid)
		{
			$row['comment_id']			= $newid; 
			$row['comment_item_id']		= intval($_POST['itemid']);
			$row['comment_type']		= e107::getComment()->getCommentType($tp->toDB($_POST['table'],true));
			$row['comment_subject'] 	= $_POST['subject'];
			$row['comment_comment'] 	= $_POST['comment'];
			$row['user_image'] 			= USERIMAGE;
			$row['user_id']				= USERID;
			$row['user_name'] 			= USERNAME;
			$row['comment_datestamp'] 	= time();
			$row['comment_blocked']		= (vartrue($pref['comments_moderate']) ? 2 : 0);
			
			echo "\n<!-- Appended -->\n";
			echo e107::getComment()->render_comment($row,'comment',intval($_POST['itemid']));
			echo "\n<!-- end Appended -->\n";	
		}
	}
	
	
		

		
	exit;
}

require_once(e_HANDLER."news_class.php");
require_once(e_HANDLER."comment_class.php");
define("PAGE_NAME", COMLAN_99);

if (!e_QUERY)
{
	header("location:".e_BASE."index.php");
	exit;
}

$cobj = new comment;

$temp_query = explode(".", e_QUERY);
$action = $temp_query[0];			// Usually says 'comment' - may say 'reply'
$table = $temp_query[1];			// Table containing item associated with comment(s)
$id  = intval(varset($temp_query[2], 0));	// ID of item associated with comments (e.g. news ID)
											// For reply with nested comments, its the ID of the comment
$nid = intval(varset($temp_query[3], ""));	// Action - e.g. 'edit'. Or news ID for reply with nested comments
$xid = intval(varset($temp_query[4], ""));	// ID of target comment
global $comment_edit_query;
$comment_edit_query = $temp_query[0].".".$temp_query[1].".".$temp_query[2];
unset($temp_query);

$redirectFlag = 0;
if (isset($_POST['commentsubmit']) || isset($_POST['editsubmit']))
{	// New comment, or edited comment, being posted.
	if(!ANON && !USER)
	{
		header("location: ".e_BASE."index.php");
		exit;
	}

	switch ($table)
	{
		case 'poll' :
			if (!$sql->db_Select("polls", "poll_title", "`poll_id` = '{$id}' AND `poll_comment` = 1")) 
			{
				header("location: ".e_BASE."index.php");
				exit;
			}
			break;
		case 'news' :
			if (!$sql->db_Select("news", "news_allow_comments", "`news_id` = '{$id}' AND `news_allow_comments` = 0")) 
			{
				header("location: ".e_BASE."index.php");
				exit;
			}
			break;
		case 'user' :
			if (!$sql->db_Select('user', 'user_name', '`user_id` ='.$id)) 
			{
				header("location: ".e_BASE."index.php");
				exit;
			}
			break;
	}

	$pid = intval(varset($_POST['pid'], 0));				// ID of the specific comment being edited (nested comments - replies)

	$editpid = intval(varset($_POST['editpid'], 0));		// ID of the specific comment being edited (in-line comments)

	$clean_authorname = $_POST['author_name'];
	$clean_comment = $_POST['comment'];
	$clean_subject = $_POST['subject'];

	$cobj->enter_comment($clean_authorname, $clean_comment, $table, $id, $pid, $clean_subject);
	if ($table == "news")
	{
		$e107cache->clear("news");
	}
	else
	{
		$e107cache->clear("comment.php?{$table}.{$id}");
	}

	if($editpid)
	{
		$redirectFlag = $id;
		/*		$redir = preg_replace("#\.edit.*#si", "", e_QUERY);
		header("Location: ".e_SELF."?{$redir}");
		exit;  */
	}
}


if (isset($_POST['replysubmit']))
{	// Reply to nested comment being posted
	if ($table == "news" && !$sql->db_Select("news", "news_allow_comments", "news_id='{$nid}' "))
	{
		header("location:".e_BASE."index.php");
		exit;
	}
	else
	{
		$row = $sql->db_Fetch();
		if (!$row['news_id'])
		{
			$pid = (isset($_POST['pid']) ? $_POST['pid'] : 0);
			$pid = intval($pid);

			$clean_authorname = $_POST['author_name'];
			$clean_comment = $_POST['comment'];
			$clean_subject = $_POST['subject'];

			$cobj->enter_comment($clean_authorname, $clean_comment, $table, $nid, $pid, $clean_subject);
			$e107cache->clear("comment.php?{$table}.{$id}");
		}
		$redirectFlag = $nid;
	}
}

if ($redirectFlag)
{	// Need to go back to original page

	// Check for core tables first
	switch ($table)
	{
		case "news" :
			header('Location: '.e107::getUrl()->create('news/view/item', 'id='.$redirectFlag));
			exit;
		case "poll" :
			echo "<script type='text/javascript'>document.location.href='".e_HTTP."comment.php?comment.{$table}.{$redirectFlag}'</script>\n";
			exit;
		case "download" :
			echo "<script type='text/javascript'>document.location.href='".e_HTTP."download.php?view.{$redirectFlag}'</script>\n";
			exit;
		case "page" :
			echo "<script type='text/javascript'>document.location.href='".e_HTTP."page.php?{$redirectFlag}'</script>\n";
			exit;
		case 'user' :
			echo "<script type='text/javascript'>document.location.href='".e107::getUrl()->create('user/profile/view', 'id='.$redirectFlag)."'</script>\n";
			exit;
	}

	// Check plugin e_comment.php files
	$plugin_redir = false;
	$e_comment = $cobj->get_e_comment();
	if ($table == $e_comment[$table]['eplug_comment_ids'])
	{
		$plugin_redir = TRUE;
		$reply_location = str_replace('{NID}', $redirectFlag, $e_comment[$table]['reply_location']);
	}
	
	if ($plugin_redir)
	{
		echo "<script type='text/javascript'>document.location.href='{$reply_location}'</script>\n";
		exit;
	}
	
	// No redirect found if we get here.
}

$comment_ob_start = FALSE;
if ($action == "reply")
{
	if (!$pref['nested_comments'])
	{
		header("Location: ".e_BASE."comment.php?comment.{$table}.{$nid}");
		exit;
	}

	$query = "`comment_id` = '{$id}' LIMIT 0,1";
	if ($sql->db_Select("comments", "comment_subject", "`comment_id` = '{$id}'"))
	{
		$comments = $sql->db_Fetch();
		$subject = $comments['comment_subject'];
		$subject_header = $tp->toHTML($comments['comment_subject']);
	}

	if ($subject == "")
	{
		switch ($table)
		{
			case "news" :
				if (!$sql->db_Select("news", "news_title", "news_id='{$nid}' "))
				{ 
					header("location: ".e_BASE."index.php");
					exit;
				}
				else
				{
					$news = $sql->db_Fetch();
					$subject = $news['news_title'];
					$title = COMLAN_100;
				}
				break;
			case "poll" :
				if (!$sql->db_Select("polls", "poll_title", "poll_id='{$nid}' "))
				{
					header("location:".e_BASE."index.php");
					exit;
				}
				else
				{
					$poll = $sql->db_Fetch();
					$subject = $poll['poll_title'];
					$title = COMLAN_101;
				}
				break;
			case 'download' :
				if ($sql->db_Select('download','download_name',"download_id={$nid} "))
				{
					$row = $sql->db_Fetch();
					$subject = $row['download_name'];
					$title = COMLAN_106;
				}
				else
				{
					header("location:".e_BASE."index.php");
					exit;
				}
				break;
			case 'user' :
				if ($sql->db_Select('user','user_name',"user_id={$nid} "))
				{
					$row = $sql->db_Fetch();
					$subject = $row['user_name'];
					$title = COMLAN_12;
				}
				else
				{
					header("location:".e_BASE."index.php");
					exit;
				}
				break;
		}
	}
	define('e_PAGETITLE', COMLAN_102.$subject.($title ? ' / '.$title : '')." / ".COMLAN_99);
	require_once(HEADERF);
}
elseif ($action == 'comment')
{  //  Default code if not reply

	// Check cache
	if ($cache = $e107cache->retrieve("comment.php?{$table}.{$id}"))
	{
		require_once(HEADERF);
		echo $cache;
		require_once(FOOTERF);
		exit;
	}
	else
	{
		switch ($table)
		{
			case "news" :
				if(isset($pref['trackbackEnabled']) && $pref['trackbackEnabled'])
				{
					$query = "SELECT COUNT(tb.trackback_pid) AS tb_count, n.*, u.user_id, u.user_name, u.user_customtitle, nc.category_name, nc.category_icon FROM #news AS n
					LEFT JOIN #user AS u ON n.news_author = u.user_id
					LEFT JOIN #news_category AS nc ON n.news_category = nc.category_id
					LEFT JOIN #trackback AS tb ON tb.trackback_pid  = n.news_id
					WHERE n.news_class REGEXP '".e_CLASS_REGEXP."'
					AND n.news_id={$id}
					AND n.news_allow_comments=0
					GROUP by n.news_id";
				}
				else
				{
					$query = "SELECT n.*, u.user_id, u.user_name, u.user_customtitle, nc.category_name, nc.category_icon FROM #news AS n
					LEFT JOIN #user AS u ON n.news_author = u.user_id
					LEFT JOIN #news_category AS nc ON n.news_category = nc.category_id
					WHERE n.news_class REGEXP '".e_CLASS_REGEXP."'
					AND n.news_id={$id}
					AND n.news_allow_comments=0";
				}

				if (!$sql->db_Select_gen($query))
				{
					header("location:".e_BASE."index.php");
					exit;
				}
				else
				{
					$news = $sql->db_Fetch();
					$subject = $tp->toForm($news['news_title']);
					define("e_PAGETITLE", "{$subject} - ".COMLAN_100." / ".COMLAN_99);
					require_once(HEADERF);
					ob_start();
					$comment_ob_start = TRUE;
					$ix = new news;
					$ix->render_newsitem($news, "extend"); // extend so that news-title-only news text is displayed in full when viewing comments.
					$field = $news['news_id'];
				}
				break;
			case "poll" :
				if (!$sql->db_Select("polls", "*", "poll_id='{$id}'"))
				{
					header("location:".e_BASE."index.php");
					exit;
				}
				else
				{
					$row = $sql->db_Fetch();
					$comments_poll = $row['poll_comment'];
					$subject = $row['poll_title'];
					define("e_PAGETITLE", $subject.' - '.COMLAN_101." / ".COMLAN_99);
					$poll_to_show = $id;				// Need to pass poll number through to display routine
					require_once(HEADERF);
					require(e_PLUGIN."poll/poll_menu.php");
					$field = $row['poll_id'];
					if(!$comments_poll)
					{
						require_once(FOOTERF);
						exit;
					}
				}
				break;
			case 'download' :
				if ($sql->db_Select('download','download_name',"download_id={$id} "))
				{
					$row = $sql->db_Fetch();
					$subject = $row['download_name'];
					$title = COMLAN_106;
					$field = $id;
					require_once(HEADERF);
				}
				else
				{
					header("location:".e_BASE."index.php");
					exit;
				}
				break;
			case 'user' :
				if ($sql->db_Select('user','user_name',"user_id={$id} "))
				{
					$row = $sql->db_Fetch();
					$subject = $row['user_name'];
					//$title = 'Edit comment about user';
					$field = $id;
					require_once(HEADERF);
				}
				else
				{
					header("location:".e_BASE."index.php");
					exit;
				}
				break;
			default :		// Hope its a plugin table
				$e_comment = $cobj->get_e_comment();
				if ($table == $e_comment[$table]['eplug_comment_ids'])
				{
					if ($sql->db_Select($e_comment[$table]['db_table'],$e_comment[$table]['db_title'],$e_comment[$table]['db_id']."={$id} "))
					{
						$row = $sql->db_Fetch();
						$subject = $row[$e_comment[$table]['db_title']];
						$title = $e_comment[$table]['plugin_name'];
						$field = $id;
						require_once(HEADERF);
					}
					else
					{
						header("location:".e_BASE."index.php");
						exit;
					}
				}
				else
				{	// Error - emit some debug code
					require_once(HEADERF);
					if (E107_DEBUG_LEVEL)
					{
						echo "Comment error: {$table}  Field: {$e_comment['db_id']}  ID {$id}   Title: {$e_comment['db_title']}<br />";
						echo "<pre>";
						var_dump($e_comment);
						echo "</pre>"; 
					}
					else
					{
						header('location:'.e_BASE.'index.php');
						exit;
					}
				}
		}
	}
}
else
{	// Invalid action - just exit
	header("location:".e_BASE."index.php");
	exit;
}

if(isset($pref['trackbackEnabled']) && $pref['trackbackEnabled'] && $table == "news")
{
	echo "<span class='smalltext'><b>".$pref['trackbackString']."</b> ".SITEURLBASE.e_PLUGIN_ABS."trackback/trackback.php?pid={$id}</span>";
}

$field = ($field ? $field : ($id ? $id : ""));			// ID of associated source item
$width = (isset($width) && $width ? $width : "");
$cobj->compose_comment($table, $action, $field, $width, $subject, $rate=FALSE);



if(isset($pref['trackbackEnabled']) && $pref['trackbackEnabled'] && $table == "news")
{
	if($sql->db_Select("trackback", "*", "trackback_pid={$id}"))
	{
		$tbArray = $sql -> db_getList();

		if (file_exists(THEME."trackback_template.php")) {
			require_once(THEME."trackback_template.php");
		} else {
			require_once(e_THEME."templates/trackback_template.php");
		}

		$text = "";

		foreach($tbArray as $trackback)
		{
			extract($trackback);
			$TITLE = $trackback_title;
			$EXCERPT = $trackback_excerpt;
			$BLOGNAME = "<a href='{$trackback_url}' rel='external'>{$trackback_blogname}</a>";
			$text .= preg_replace("/\{(.*?)\}/e", '$\1', $TRACKBACK);
		}

		if($TRACKBACK_RENDER_METHOD)
		{
			$ns->tablerender("<a name='track'></a>".COMLAN_315, $text);
		}
		else
		{
			echo "<a name='track'></a>".$text;
		}
	}
	else
	{
		echo "<a name='track'></a>".COMLAN_316;
	}
	if (ADMIN && getperms("B")) {
		echo "<div style='text-align:right'><a href='".e_PLUGIN_ABS."trackback/modtrackback.php?".$id."'>".COMLAN_317."</a></div><br />";
	}
}


//if (!strstr(e_QUERY, "poll"))
// If output buffering started, cache the result
if ($comment_ob_start)
{
	$cache = ob_get_contents();
	$e107cache->set("comment.php?{$table}.{$field}", $cache);
	ob_end_flush(); // dump the buffer we started
}


require_once(FOOTERF);

?>