[tt-rss.git] / backend.php

<?
	$op = $_GET["op"];

	if ($op == "rpc") {
		header("Content-Type: application/xml");
	}

	require_once "config.php";
	require_once "db.php";
	require_once "functions.php";
	require_once "magpierss/rss_fetch.inc";

	$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);	

	if (DB_TYPE == "pgsql") {
		pg_query("set client_encoding = 'utf-8'");
	}
	
	$fetch = $_GET["fetch"];

	function getLabelCounters($link) {

		$result = db_query($link, "SELECT count(id) as count FROM ttrss_entries
			WHERE marked = true AND unread = true");

		$count = db_fetch_result($result, 0, "count");

		print "<label id=\"-1\" counter=\"$count\"/>";

		$result = db_query($link, "SELECT id,sql_exp,description FROM
			ttrss_labels ORDER by description");
	
		while ($line = db_fetch_assoc($result)) {

			$id = -$line["id"] - 11;

			error_reporting (0);

			$tmp_result = db_query($link, "SELECT count(id) as count FROM ttrss_entries
				WHERE (" . $line["sql_exp"] . ") AND unread = true");

			$count = db_fetch_result($tmp_result, 0, "count");

			print "<feed id=\"$id\" counter=\"$count\"/>";

			error_reporting (E_ERROR | E_WARNING | E_PARSE);
	
		}
	}

	function getFeedCounter($link, $id) {
	
		$result = db_query($link, "SELECT 
				count(id) as count FROM ttrss_entries
			WHERE feed_id = '$id'	AND unread = true");
	
			$count = db_fetch_result($result, 0, "count");
			
			print "<feed id=\"$id\" counter=\"$count\"/>";		
	}

	function getFeedCounters($link) {
	
		$result = db_query($link, "SELECT id,
			(SELECT count(id) FROM ttrss_entries WHERE feed_id = ttrss_feeds.id 
				AND unread = true) as count
			FROM ttrss_feeds");
	
		while ($line = db_fetch_assoc($result)) {
		
			$id = $line["id"];
			$count = $line["count"];

			print "<feed id=\"$id\" counter=\"$count\"/>";
		}
	}

	function outputFeedList($link) {

		print "<html><head>
			<title>Tiny Tiny RSS : Feedlist</title>
			<link rel=\"stylesheet\" href=\"tt-rss.css\" type=\"text/css\">
			<script type=\"text/javascript\" src=\"functions.js\"></script>
			<script type=\"text/javascript\" src=\"feedlist.js\"></script>
			<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">
			</head><body>";

		print "<ul class=\"feedList\" id=\"feedList\">";

		/* virtual feeds */

		$result = db_query($link, "SELECT count(id) as num_starred 
			FROM ttrss_entries WHERE marked = true AND unread = true");
		$num_starred = db_fetch_result($result, 0, "num_starred");

		printFeedEntry(-1, "odd", "Starred articles", $num_starred, "images/mark_set.png");

		if (ENABLE_LABELS) {

			$result = db_query($link, "SELECT id,sql_exp,description FROM
				ttrss_labels ORDER by description");
	
			if (db_num_rows($result) > 0) {
				print "<li><hr></li>";
			}
	
			while ($line = db_fetch_assoc($result)) {

				error_reporting (0);
	
				$tmp_result = db_query($link, "SELECT count(id) as count FROM ttrss_entries
					WHERE (" . $line["sql_exp"] . ") AND unread = true");

				$count = db_fetch_result($tmp_result, 0, "count");

				$class = "odd";

				if ($count > 0) {
					$class .= "Unread";
				}
				
				error_reporting (E_ERROR | E_WARNING | E_PARSE);

				printFeedEntry(-$line["id"]-11, 
					$class, $line["description"], $count, "images/label.png");
	
			}
		}

		print "<li><hr></li>";

		$result = db_query($link, "SELECT *,
			(SELECT count(id) FROM ttrss_entries 
				WHERE feed_id = ttrss_feeds.id) AS total,
			(SELECT count(id) FROM ttrss_entries
				WHERE feed_id = ttrss_feeds.id AND unread = true) as unread
			FROM ttrss_feeds ORDER BY title");			

		$actid = $_GET["actid"];

		/* real feeds */

		$lnum = 0;

		$total_unread = 0;

		while ($line = db_fetch_assoc($result)) {
		
			$feed = $line["title"];
			$feed_id = $line["id"];	  

			$subop = $_GET["subop"];
			
			$total = $line["total"];
			$unread = $line["unread"];
			
//			$class = ($lnum % 2) ? "even" : "odd";

			$class = "odd";

			if ($unread > 0) $class .= "Unread";

			if ($actid == $feed_id) {
				$class .= "Selected";
			}

			$total_unread += $unread;

			printFeedEntry($feed_id, $class, $feed, $unread, "icons/$feed_id.ico");

			++$lnum;
		}

		print "</table>";

		print "<div class=\"invisible\" id=\"FEEDTU\">$total_unread</div>";

	}


	if ($op == "rpc") {

		$subop = $_GET["subop"];

		if ($subop == "getLabelCounters") {
			$aid = $_GET["aid"];		
			print "<rpc-reply>";
			getLabelCounters($link);
			if ($aid) {
				getFeedCounter($link, $aid);
			}
			print "</rpc-reply>";
		}

		if ($subop == "getFeedCounters") {
			print "<rpc-reply>";
			getFeedCounters($link);
			print "</rpc-reply>";
		}

		if ($subop == "getAllCounters") {
			print "<rpc-reply>";
			getLabelCounters($link);
			getFeedCounters($link);
			print "</rpc-reply>";

		}

		if ($subop == "mark") {
			$mark = $_GET["mark"];
			$id = db_escape_string($_GET["id"]);

			if ($mark == "1") {
				$mark = "true";
			} else {
				$mark = "false";
			}

			$result = db_query($link, "UPDATE ttrss_entries SET marked = $mark
				WHERE id = '$id'");
		}

		if ($subop == "updateFeed") {
			$feed_id = db_escape_string($_GET["feed"]);

			$result = db_query($link, 
				"SELECT feed_url FROM ttrss_feeds WHERE id = '$feed_id'");

			if (db_num_rows($result) > 0) {			
				$feed_url = db_fetch_result($result, 0, "feed_url");
//				update_rss_feed($link, $feed_url, $feed_id);
			}

			print "DONE-$feed_id";

			return;
		}

		if ($subop == "forceUpdateAllFeeds" || $subop == "updateAllFeeds") {
			update_all_feeds($link, true);			

			print "<rpc-reply>";
			getLabelCounters($link);
			getFeedCounters($link);
			print "</rpc-reply>";
		}
		
		if ($subop == "catchupPage") {

			$ids = split(",", $_GET["ids"]);

			foreach ($ids as $id) {

				db_query($link, "UPDATE ttrss_entries SET unread=false,last_read = NOW()
					WHERE id = '$id'");

			}

			print "Marked active page as read.";
		}
	}
	
	if ($op == "feeds") {

		$subop = $_GET["subop"];

		if ($subop == "catchupAll") {
			db_query($link, "UPDATE ttrss_entries SET last_read = NOW(),unread = false");
		}

		outputFeedList($link);

	}

	if ($op == "view") {

		$id = $_GET["id"];
		$feed_id = $_GET["feed"];

		$result = db_query($link, "UPDATE ttrss_entries SET unread = false,last_read = NOW() WHERE id = '$id'");

		$addheader = $_GET["addheader"];

		$result = db_query($link, "SELECT title,link,content,feed_id,comments,
			(SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url 
			FROM ttrss_entries
			WHERE	id = '$id'");

		if ($addheader) {
			print "<html><head>
				<title>Tiny Tiny RSS : Article $id</title>
				<link rel=\"stylesheet\" href=\"tt-rss.css\" type=\"text/css\">
				<script type=\"text/javascript\" src=\"functions.js\"></script>
				<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">
				</head><body>";
		}

		if ($result) {

			$line = db_fetch_assoc($result);

			if ($line["icon_url"]) {
				$feed_icon = "<img class=\"feedIcon\" src=\"" . $line["icon_url"] . "\">";
			} else {
				$feed_icon = "&nbsp;";
			}

			if ($line["comments"] && $line["link"] != $line["comments"]) {
				$entry_comments = "(<a href=\"".$line["comments"]."\">Comments</a>)";
			} else {
				$entry_comments = "";
			}

			print "<div class=\"postReply\">";

			print "<div class=\"postHeader\"><table>";

			print "<tr><td><b>Title:</b></td>
				<td width='100%'>" . $line["title"] . "</td></tr>";
				
			print "<tr><td><b>Link:</b></td>
				<td width='100%'>
				<a href=\"" . $line["link"] . "\">".$line["link"]."</a>
				$entry_comments</td></tr>";
					
			print "</table></div>";

			print "<div class=\"postIcon\">" . $feed_icon . "</div>";
			print "<div class=\"postContent\">" . $line["content"] . "</div>";
			
			print "</div>";

			print "<script type=\"text/javascript\">
				update_label_counters($feed_id);
			</script>";
		}

		if ($addheader) {
			print "</body></html>";
		}
	}

	if ($op == "viewfeed") {

		$feed = $_GET["feed"];
		$skip = $_GET["skip"];
		$subop = $_GET["subop"];
		$view_mode = $_GET["view"];
		$addheader = $_GET["addheader"];
		$limit = $_GET["limit"];

		if (!$feed) {
			print "Error: no feed to display.";
			return;
		}

		if (!$skip) $skip = 0;

		if ($subop == "undefined") $subop = "";

		if ($addheader) {
			print "<html><head>
				<title>Tiny Tiny RSS : Feed $feed</title>
				<link rel=\"stylesheet\" href=\"tt-rss.css\" type=\"text/css\">
				<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">
				<script type=\"text/javascript\" src=\"functions.js\"></script>
				<script type=\"text/javascript\" src=\"viewfeed.js\"></script>
				</head><body>";
		}

		if ($feed >= 0) {

			$result = db_query($link, 
				"SELECT *,SUBSTRING(last_updated,1,16) as last_updated_s
				FROM ttrss_feeds WHERE id = '$feed'");
		
			if ($result) {
	
				$line = db_fetch_assoc($result);
	
				update_rss_feed($link, $line["feed_url"], $feed);
					
				if ($subop == "MarkAllRead")  {
	
					db_query($link, "UPDATE ttrss_entries SET unread = false,last_read = NOW() 
						WHERE feed_id = '$feed'");
				}
			}
		}

		print "<table class=\"headlinesList\" id=\"headlinesList\" width=\"100%\">";

		$search = $_GET["search"];

		if ($search) {
			$search_query_part = "(upper(title) LIKE upper('%$search%') 
				OR content LIKE '%$search%') AND";
		} else {
			$search_query_part = "";
		}

		$view_query_part = "";

		if ($view_mode == "Starred") {
			$view_query_part = " marked = true AND ";
		}

		if ($view_mode == "Unread") {
			$view_query_part = " unread = true AND ";
		}

/*		$result = db_query($link, "SELECT count(id) AS total_entries 
			FROM ttrss_entries WHERE 
			$search_query_part
			feed_id = '$feed'");

		$total_entries = db_fetch_result($result, 0, "total_entries"); */

/*		$result = db_query("SELECT count(id) AS unread_entries 
			FROM ttrss_entries WHERE 
			$search_query_part
			unread = true AND
			feed_id = '$feed'");

		$unread_entries = db_fetch_result($result, 0, "unread_entries"); */

		if ($limit && $limit != "All") {
			$limit_query_part = "LIMIT " . $limit;
		} 

		$vfeed_query_part = "";

		if ($feed >= 0) {
			$query_strategy_part = "feed_id = '$feed'";
		} else if ($feed == -1) { // starred virtual feed
			$query_strategy_part = "marked = true";
			$vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
				id = feed_id) as feed_title,";
		} else if ($feed <= -10) { // labels
			$label_id = -$feed - 11;

			$tmp_result = db_query($link, "SELECT sql_exp FROM ttrss_labels
				WHERE id = '$label_id'");
		
			$query_strategy_part = db_fetch_result($tmp_result, 0, "sql_exp");
	
			$vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
				id = feed_id) as feed_title,";
		} else {
			$query_strategy_part = "id > 0"; // dumb
		}

		$order_by = "updated DESC";

//		if ($feed < -10) {
//			$order_by = "feed_id,updated DESC";
//		}

		if ($feed < -10) error_reporting (0);

		$result = db_query($link, "SELECT 
				id,title,updated,unread,feed_id,marked,link,last_read,
				SUBSTRING(last_read,1,19) as last_read_noms,
				$vfeed_query_part
				SUBSTRING(updated,1,19) as updated_noms
			FROM
				ttrss_entries 
			WHERE
			$search_query_part
			$view_query_part
			$query_strategy_part ORDER BY $order_by
			$limit_query_part");

		if (!$result) {
			print "<tr><td colspan='4' align='center'>
				Could not display feed (query failed). Please check match syntax or local configuration.</td></tr>";
			return;
		}

		$lnum = 0;

		error_reporting (E_ERROR | E_WARNING | E_PARSE);

		$num_unread = 0;

		while ($line = db_fetch_assoc($result)) {

			$class = ($lnum % 2) ? "even" : "odd";

			$id = $line["id"];
			$feed_id = $line["feed_id"];

//			printf("L %d (%s) &gt; U %d (%s) = %d<br>", 
//				strtotime($line["last_read_noms"]), $line["last_read_noms"],
//				strtotime($line["updated"]), $line["updated"],
//				strtotime($line["last_read"]) >= strtotime($line["updated"]));

			if ($line["last_read"] != "" && $line["updated"] != "" &&
				strtotime($line["last_read_noms"]) < strtotime($line["updated_noms"])) {

				$update_pic = "<img id='FUPDPIC-$id' src=\"images/updated.png\" 
					alt=\"Updated\">";

			} else {

				$update_pic = "<img id='FUPDPIC-$id' src=\"images/blank_icon.gif\" 
					alt=\"Updated\">";

			}

			if ($line["unread"] == "t" || $line["unread"] == "1") {
				$class .= "Unread";
				++$num_unread;
			}

			if ($line["marked"] == "t" || $line["marked"] == "1") {
				$marked_pic = "<img id=\"FMARKPIC-$id\" src=\"images/mark_set.png\" 
					alt=\"Reset mark\" onclick='javascript:toggleMark($id, false)'>";
			} else {
				$marked_pic = "<img id=\"FMARKPIC-$id\" src=\"images/mark_unset.png\" 
					alt=\"Set mark\" onclick='javascript:toggleMark($id, true)'>";
			}

			$content_link = "<a id=\"FTITLE-$id\" href=\"javascript:view($id,$feed_id);\">" .
				$line["title"] . "</a>";
				
			print "<tr class='$class' id='RROW-$id'>";
			// onclick=\"javascript:view($id,$feed_id)\">

			print "<td valign='center' align='center'>$update_pic</td>";
			print "<td valign='center' align='center'>$marked_pic</td>";

			print "<td width='25%'>
				<a href=\"javascript:view($id,$feed_id);\">".$line["updated"]."</a></td>";

			if ($line["feed_title"]) {			
				print "<td width='50%'>$content_link</td>";
				print "<td width='20%'>".$line["feed_title"]."</td>";
			} else {
				print "<td width='70%'>$content_link</td>";
			}

			print "</tr>";

			++$lnum;
		}

		if ($lnum == 0) {
			print "<tr><td align='center'>No articles found.</td></tr>";
		}

/*		while ($lnum < HEADLINES_PER_PAGE) {
			++$lnum;
			print "<tr><td>&nbsp;</td></tr>";
		} */
		
		print "</table>";

		if ($feed >= 0) {

			$result = db_query($link, "SELECT count(id) as unread FROM ttrss_entries
				WHERE feed_id = '$feed' AND $query_strategy_part
				AND unread = true");			
			
			$unread = db_fetch_result($result, 0, "unread");

		} else if ($feed == -1) {
			$result = db_query($link, "SELECT count(id) as unread FROM ttrss_entries
				WHERE $query_strategy_part");			

			$unread = db_fetch_result($result, 0, "unread");

		} else {
//			print "[viewfeed] feed type not implemented<br>";			

			error_reporting(0);
			$result = db_query($link, "SELECT count(id) as unread FROM ttrss_entries
				WHERE $query_strategy_part");			

			$unread = db_fetch_result($result, 0, "unread");

			error_reporting (E_ERROR | E_WARNING | E_PARSE);
		}				

		if (!$unread) $unread = 0;

		// update unread/total counters and status for active feed in the feedlist 
		// kludge, because iframe doesn't seem to support onload() 
		
		print "<script type=\"text/javascript\">
			document.onkeydown = hotkey_handler;

			var p_document = parent.frames['feeds-frame'].document;

			var feedr = p_document.getElementById(\"FEEDR-\" + $feed);
			var feedu = p_document.getElementById(\"FEEDU-\" + $feed);

			if (feedu) {
				feedu.innerHTML = \"$unread\";
			}

			var feedctr = p_document.getElementById(\"FEEDCTR-\" + $feed);

			if ($unread > 0 && $feed >= 0 && !feedr.className.match(\"Unread\")) {
					feedr.className = feedr.className + \"Unread\";
					feedctr.className = '';
			} else if ($unread <= 0) {	
					feedr.className = feedr.className.replace(\"Unread\", \"\");
					feedctr.className = 'invisible';
			}	

			update_label_counters($feed);

//			p_notify(\"\");

		</script>";

		if ($addheader) {
			print "</body></html>";
		}

	}

	if ($op == "pref-rpc") {

		$subop = $_GET["subop"];

		if ($subop == "unread") {
			$ids = split(",", $_GET["ids"]);
			foreach ($ids as $id) {
				db_query($link, "UPDATE ttrss_entries SET unread = true WHERE feed_id = '$id'");
			}

			print "Marked selected feeds as read.";
		}

		if ($subop == "read") {
			$ids = split(",", $_GET["ids"]);
			foreach ($ids as $id) {
				db_query($link, "UPDATE ttrss_entries 
					SET unread = false,last_read = NOW() WHERE feed_id = '$id'");
			}

			print "Marked selected feeds as unread.";

		}

	}

	if ($op == "pref-feeds") {
	
		$subop = $_GET["subop"];

		if ($subop == "editSave") {
			$feed_title = db_escape_string($_GET["t"]);
			$feed_link = db_escape_string($_GET["l"]);
			$feed_id = $_GET["id"];

			$result = db_query($link, "UPDATE ttrss_feeds SET 
				title = '$feed_title', feed_url = '$feed_link' WHERE id = '$feed_id'");			

		}

		if ($subop == "remove") {

			if (!WEB_DEMO_MODE) {

				$ids = split(",", $_GET["ids"]);

				foreach ($ids as $id) {
					db_query($link, "DELETE FROM ttrss_feeds WHERE id = '$id'");
					
					if (file_exists(ICONS_DIR . "/$id.ico")) {
						unlink(ICONS_DIR . "/$id.ico");
					}
				}
			}
		}

		if ($subop == "add") {
		
			if (!WEB_DEMO_MODE) {

				$feed_link = db_escape_string($_GET["link"]);
					
				$result = db_query($link,
					"INSERT INTO ttrss_feeds (feed_url,title) VALUES ('$feed_link', '')");

				$result = db_query($link,
					"SELECT id FROM ttrss_feeds WHERE feed_url = '$feed_link'");

				$feed_id = db_fetch_result($result, 0, "id");

				if ($feed_id) {
					update_rss_feed($link, $feed_link, $feed_id);
				}
			}
		}

		print "<table class=\"prefAddFeed\"><tr>
			<td><input id=\"fadd_link\"></td>
			<td colspan=\"4\" align=\"right\">
				<a class=\"button\" href=\"javascript:addFeed()\">Add feed</a></td></tr>
		</table>";

		$result = db_query($link, "SELECT 
				id,title,feed_url,substring(last_updated,1,16) as last_updated
			FROM 
				ttrss_feeds ORDER by title");

		print "<p><table width=\"100%\" class=\"prefFeedList\" id=\"prefFeedList\">";
		print "<tr class=\"title\">
					<td>&nbsp;</td><td>Select</td><td width=\"40%\">Title</td>
					<td width=\"40%\">Link</td><td>Last updated</td></tr>";
		
		$lnum = 0;
		
		while ($line = db_fetch_assoc($result)) {

			$class = ($lnum % 2) ? "even" : "odd";

			$feed_id = $line["id"];

			$edit_feed_id = $_GET["id"];

			if ($subop == "edit" && $feed_id != $edit_feed_id) {
				$class .= "Grayed";
			}

			print "<tr class=\"$class\" id=\"FEEDR-$feed_id\">";

			$icon_file = ICONS_DIR . "/$feed_id.ico";

			if (file_exists($icon_file) && filesize($icon_file) > 0) {
					$feed_icon = "<img width=\"16\" height=\"16\"
						src=\"" . ICONS_URL . "/$feed_id.ico\">";
			} else {
				$feed_icon = "&nbsp;";
			}
			print "<td align='center'>$feed_icon</td>";		

			if (!$edit_feed_id || $subop != "edit") {

				print "<td><input onclick='toggleSelectRow(this);' 
				type=\"checkbox\" id=\"FRCHK-".$line["id"]."\"></td>";

				print "<td><a href=\"javascript:editFeed($feed_id);\">" . 
					$line["title"] . "</td>";		
				print "<td><a href=\"javascript:editFeed($feed_id);\">" . 
					$line["feed_url"] . "</td>";		
			

			} else if ($feed_id != $edit_feed_id) {

				print "<td><input disabled=\"true\" type=\"checkbox\" 
					id=\"FRCHK-".$line["id"]."\"></td>";

				print "<td>".$line["title"]."</td>";		
				print "<td>".$line["feed_url"]."</td>";		

			} else {

				print "<td><input disabled=\"true\" type=\"checkbox\"></td>";

				print "<td><input id=\"iedit_title\" value=\"".$line["title"]."\"></td>";
				print "<td><input id=\"iedit_link\" value=\"".$line["feed_url"]."\"></td>";
						
			}

			if (!$line["last_updated"]) $line["last_updated"] = "Never";

			print "<td>" . $line["last_updated"] . "</td>";
			
			print "</tr>";

			++$lnum;
		}

		if ($lnum == 0) {
			print "<tr><td colspan=\"5\" align=\"center\">No feeds defined.</td></tr>";
		}

		print "</table>";

		print "<p>";

		if ($subop == "edit") {
			print "Edit feed:&nbsp;
				<input type=\"submit\" class=\"button\" 
					onclick=\"javascript:feedEditCancel()\" value=\"Cancel\">
				<input type=\"submit\" class=\"button\" 
					onclick=\"javascript:feedEditSave()\" value=\"Save\">";
			} else {

			print "
				Selection:&nbsp;
			<input type=\"submit\" class=\"button\" 
				onclick=\"javascript:editSelectedFeed()\" value=\"Edit\">
			<input type=\"submit\" class=\"button\" 
				onclick=\"javascript:removeSelectedFeeds()\" value=\"Remove\">";
				
			if (ENABLE_PREFS_CATCHUP_UNCATCHUP) {
				print "
				<input type=\"submit\" class=\"button\" 
					onclick=\"javascript:readSelectedFeeds()\" value=\"Mark as read\">
				<input type=\"submit\" class=\"button\" 
					onclick=\"javascript:unreadSelectedFeeds()\" value=\"Mark as unread\">&nbsp;";
			}
			print "
			All feeds: 
				<input type=\"submit\" 
					class=\"button\" onclick=\"gotoExportOpml()\" value=\"Export OPML\">";
		
			}

	}

	if ($op == "pref-filters") {

		$subop = $_GET["subop"];

		if ($subop == "editSave") {

			$regexp = db_escape_string($_GET["r"]);
			$descr = db_escape_string($_GET["d"]);
			$match = db_escape_string($_GET["m"]);
			$filter_id = db_escape_string($_GET["id"]);
			
			$result = db_query($link, "UPDATE ttrss_filters SET 
				reg_exp = '$regexp', 
				description = '$descr',
				filter_type = (SELECT id FROM ttrss_filter_types WHERE
					description = '$match')
				WHERE id = '$filter_id'");
		}

		if ($subop == "remove") {

			if (!WEB_DEMO_MODE) {

				$ids = split(",", $_GET["ids"]);

				foreach ($ids as $id) {
					db_query($link, "DELETE FROM ttrss_filters WHERE id = '$id'");
					
				}
			}
		}

		if ($subop == "add") {
		
			if (!WEB_DEMO_MODE) {

				$regexp = db_escape_string($_GET["regexp"]);
				$match = db_escape_string($_GET["match"]);
					
				$result = db_query($link,
					"INSERT INTO ttrss_filters (reg_exp,filter_type) VALUES 
						('$regexp', (SELECT id FROM ttrss_filter_types WHERE
							description = '$match'))");
			} 
		}

		$result = db_query($link, "SELECT description 
			FROM ttrss_filter_types ORDER BY description");

		$filter_types = array();

		while ($line = db_fetch_assoc($result)) {
			array_push($filter_types, $line["description"]);
		}

		print "<table class=\"prefAddFeed\"><tr>
			<td><input id=\"fadd_regexp\"></td>
			<td>";
			print_select("fadd_match", "Title", $filter_types);	
	
		print"</td><td colspan=\"4\" align=\"right\">
				<a class=\"button\" href=\"javascript:addFilter()\">Add filter</a></td></tr>
		</table>";

		$result = db_query($link, "SELECT 
				id,reg_exp,description,
				(SELECT name FROM ttrss_filter_types WHERE 
					id = filter_type) as filter_type_name,
				(SELECT description FROM ttrss_filter_types 
					WHERE id = filter_type) as filter_type_descr
			FROM 
				ttrss_filters ORDER by reg_exp");

		print "<p><table width=\"100%\" class=\"prefFilterList\" id=\"prefFilterList\">";

		print "<tr class=\"title\">
					<td width=\"5%\">Select</td><td width=\"40%\">Filter expression</td>
					<td width=\"40%\">Description</td><td width=\"10%\">Match</td></tr>";
		
		$lnum = 0;
		
		while ($line = db_fetch_assoc($result)) {

			$class = ($lnum % 2) ? "even" : "odd";

			$filter_id = $line["id"];
			$edit_filter_id = $_GET["id"];

			if ($subop == "edit" && $filter_id != $edit_filter_id) {
				$class .= "Grayed";
			}

			print "<tr class=\"$class\" id=\"FILRR-$filter_id\">";

			$line["regexp"] = htmlspecialchars($line["reg_exp"]);
			$line["description"] = htmlspecialchars($line["description"]);

			if (!$edit_filter_id || $subop != "edit") {

				if (!$line["description"]) $line["description"] = "[No description]";

				print "<td><input onclick='toggleSelectRow(this);' 
				type=\"checkbox\" id=\"FICHK-".$line["id"]."\"></td>";

				print "<td><a href=\"javascript:editFilter($filter_id);\">" . 
					$line["reg_exp"] . "</td>";		
					
				print "<td><a href=\"javascript:editFilter($filter_id);\">" . 
					$line["description"] . "</td>";			

				print "<td>".$line["filter_type_descr"]."</td>";

			} else if ($filter_id != $edit_filter_id) {

				if (!$line["description"]) $line["description"] = "[No description]";

				print "<td><input disabled=\"true\" type=\"checkbox\" 
					id=\"FICHK-".$line["id"]."\"></td>";

				print "<td>".$line["reg_exp"]."</td>";		
				print "<td>".$line["description"]."</td>";		
				print "<td>".$line["filter_type_descr"]."</td>";

			} else {

				print "<td><input disabled=\"true\" type=\"checkbox\"></td>";

				print "<td><input id=\"iedit_regexp\" value=\"".$line["reg_exp"].
					"\"></td>";

				print "<td><input id=\"iedit_descr\" value=\"".$line["description"].
					"\"></td>";

				print "<td>";
				print_select("iedit_match", $line["filter_type_descr"], $filter_types);
				print "</td>";
						
			}
				
			
			print "</tr>";

			++$lnum;
		}

		if ($lnum == 0) {
			print "<tr><td colspan=\"4\" align=\"center\">No filters defined.</td></tr>";
		}

		print "</table>";

		print "<p>";

		if ($subop == "edit") {
			print "Edit feed:
				<input type=\"submit\" class=\"button\" 
					onclick=\"javascript:filterEditCancel()\" value=\"Cancel\">
				<input type=\"submit\" class=\"button\" 
					onclick=\"javascript:filterEditSave()\" value=\"Save\">";
					
		} else {

			print "
				Selection:
			<input type=\"submit\" class=\"button\" 
				onclick=\"javascript:editSelectedFilter()\" value=\"Edit\">
			<input type=\"submit\" class=\"button\" 
				onclick=\"javascript:removeSelectedFilters()\" value=\"Remove\">";
		}
	}

	if ($op == "pref-labels") {

		$subop = $_GET["subop"];

		if ($subop == "editSave") {

			$sql_exp = $_GET["s"];
			$descr = $_GET["d"];
			$label_id = db_escape_string($_GET["id"]);
			
//			print "$sql_exp : $descr : $label_id";
			
			$result = db_query($link, "UPDATE ttrss_labels SET 
				sql_exp = '$sql_exp', 
				description = '$descr'
				WHERE id = '$label_id'");
		}

		if ($subop == "remove") {

			if (!WEB_DEMO_MODE) {

				$ids = split(",", $_GET["ids"]);

				foreach ($ids as $id) {
					db_query($link, "DELETE FROM ttrss_labels WHERE id = '$id'");
					
				}
			}
		}

		if ($subop == "add") {
		
			if (!WEB_DEMO_MODE) {

				$exp = $_GET["exp"];
					
				$result = db_query($link,
					"INSERT INTO ttrss_labels (sql_exp,description) 
						VALUES ('$exp', '$exp')");
			} 
		}

		print "<table class=\"prefAddFeed\"><tr>
			<td><input id=\"ladd_expr\"></td>";
			
		print"<td colspan=\"4\" align=\"right\">
				<a class=\"button\" href=\"javascript:addLabel()\">Add label</a></td></tr>
		</table>";

		$result = db_query($link, "SELECT 
				id,sql_exp,description
			FROM 
				ttrss_labels ORDER by description");

		print "<p><table width=\"100%\" class=\"prefLabelList\" id=\"prefLabelList\">";

		print "<tr class=\"title\">
					<td width=\"5%\">Select</td><td width=\"40%\">SQL expression</td>
					<td width=\"40%\">Caption</td></tr>";
		
		$lnum = 0;
		
		while ($line = db_fetch_assoc($result)) {

			$class = ($lnum % 2) ? "even" : "odd";

			$label_id = $line["id"];
			$edit_label_id = $_GET["id"];

			if ($subop == "edit" && $label_id != $edit_label_id) {
				$class .= "Grayed";
			}

			print "<tr class=\"$class\" id=\"LILRR-$label_id\">";

			$line["sql_exp"] = htmlspecialchars($line["sql_exp"]);
			$line["description"] = htmlspecialchars($line["description"]);

			if (!$edit_label_id || $subop != "edit") {

				if (!$line["description"]) $line["description"] = "[No caption]";

				print "<td><input onclick='toggleSelectRow(this);' 
				type=\"checkbox\" id=\"LICHK-".$line["id"]."\"></td>";

				print "<td><a href=\"javascript:editLabel($label_id);\">" . 
					$line["sql_exp"] . "</td>";		
					
				print "<td><a href=\"javascript:editLabel($label_id);\">" . 
					$line["description"] . "</td>";			

			} else if ($label_id != $edit_label_id) {

				if (!$line["description"]) $line["description"] = "[No description]";

				print "<td><input disabled=\"true\" type=\"checkbox\" 
					id=\"LICHK-".$line["id"]."\"></td>";

				print "<td>".$line["sql_exp"]."</td>";		
				print "<td>".$line["description"]."</td>";		

			} else {

				print "<td><input disabled=\"true\" type=\"checkbox\"></td>";

				print "<td><input id=\"iedit_expr\" value=\"".$line["sql_exp"].
					"\"></td>";

				print "<td><input id=\"iedit_descr\" value=\"".$line["description"].
					"\"></td>";
						
			}
				
			
			print "</tr>";

			++$lnum;
		}

		if ($lnum == 0) {
			print "<tr><td colspan=\"4\" align=\"center\">No labels defined.</td></tr>";
		}

		print "</table>";

		print "<p>";

		if ($subop == "edit") {
			print "Edit label:
				<input type=\"submit\" class=\"button\" 
					onclick=\"javascript:labelEditCancel()\" value=\"Cancel\">
				<input type=\"submit\" class=\"button\" 
					onclick=\"javascript:labelEditSave()\" value=\"Save\">";
					
		} else {

			print "
				Selection:
			<input type=\"submit\" class=\"button\" 
				onclick=\"javascript:editSelectedLabel()\" value=\"Edit\">
			<input type=\"submit\" class=\"button\" 
				onclick=\"javascript:removeSelectedLabels()\" value=\"Remove\">";
		}
	}

	if ($op == "error") {
		print "<div width=\"100%\" align='center'>";
		$msg = $_GET["msg"];
		print $msg;
		print "</div>";
	}

	db_close($link);
?>