support for web-demo mode (restricted rights)

backend.php

@@ -5,7 +5,6 @@
 	require_once "functions.php";
 	require_once "magpierss/rss_fetch.inc";
 
-
 	$link = pg_connect(DB_CONN);	
 
 	pg_query("set client_encoding = 'utf-8'");
@@ -340,6 +339,9 @@
 		}
 
 		if ($subop == "remove") {
+
+			if (!WEB_DEMO_MODE) {
+
 				$ids = split(",", $_GET["ids"]);
 
 				foreach ($ids as $id) {
@@ -347,11 +349,14 @@
 					pg_query("DELETE FROM ttrss_entries WHERE feed_id = '$id'");
 					pg_query("DELETE FROM ttrss_feeds WHERE id = '$id'");
 					pg_query("COMMIT");
-
+				}
 			}
 		}
 
 		if ($subop == "add") {
+		
+			if (!WEB_DEMO_MODE) {
+
 				$feed_link = pg_escape_string($_GET["link"]);
 					
 				$result = pg_query(
@@ -364,7 +369,7 @@
 				if ($feed_id) {
 					update_rss_feed($link, $feed_link, $feed_id);
 				}
-
+			}
 		}
 	
 		$result = pg_query("SELECT * FROM ttrss_feeds ORDER by title");

config.php-dist

@@ -3,6 +3,7 @@
 	define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache');
 	define(HEADLINES_PER_PAGE, 15);
 	define(MIN_UPDATE_TIME, 1800);
-//	define(CONTENT_CHECK_MD5, false);
+	define(WEB_DEMO_MODE, false);
+
 ?>
 

functions.php

@@ -3,6 +3,8 @@
 
 	function update_all_feeds($link, $fetch) {
 
+		if (WEB_DEMO_MODE) return;
+
 		pg_query("BEGIN");
 
 		if (!$fetch) {
@@ -27,6 +29,8 @@
 
 	function update_rss_feed($link, $feed_url, $feed) {
 
+		if (WEB_DEMO_MODE) return;
+
 		error_reporting(0);
 		$rss = fetch_rss($feed_url);
 		error_reporting (E_ERROR | E_WARNING | E_PARSE);