implement SIMPLEPIE_CACHE_DIR

config.php-dist

@@ -163,6 +163,9 @@
 	// to any feeds using HTTP Digest authentication and Magpie XML parsing 
 	// errors are bothering you too much, you can try enabling SimplePie.
 
+	define('SIMPLEPIE_CACHE_DIR',	'/var/tmp/simplepie-ttrss-cache');
+	// Cache directory for RSS feeds when using SimplePie
+
 	define('COUNTERS_MAX_AGE', 365);
 	// Hard limit for unread counters calculation. Try tweaking this
 	// parameter to speed up tt-rss when having a huge number of articles

functions.php

@@ -207,6 +207,25 @@
 			(SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 	}
 
+	function get_feed_update_interval($link, $feed_id) {
+		$result = db_query($link, "SELECT owner_uid, update_interval FROM
+			ttrss_feeds WHERE id = '$feed_id'");
+
+		if (db_num_rows($result) == 1) {
+			$update_interval = db_fetch_result($result, 0, "update_interval");
+			$owner_uid = db_fetch_result($result, 0, "owner_uid");
+
+			if ($update_interval != 0) {
+				return $update_interval;
+			} else {
+				return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
+			}
+
+		} else {
+			return -1;
+		}
+	}
+
 	function update_all_feeds($link, $fetch, $user_id = false, $force_daemon = false) {
 
 		if (WEB_DEMO_MODE) return;
@@ -441,11 +460,26 @@
 		if (!ENABLE_SIMPLEPIE) {
 			$rss = fetch_rss($fetch_url);
 		} else {
+			if (!is_dir(SIMPLEPIE_CACHE_DIR)) {
+				mkdir(SIMPLEPIE_CACHE_DIR);
+			}
+
 			$rss = new SimplePie();
 			$rss->set_useragent(SIMPLEPIE_USERAGENT . MAGPIE_USER_AGENT_EXT);
 			$rss->set_timeout(MAGPIE_FETCH_TIME_OUT);
 			$rss->set_feed_url($fetch_url);
 			$rss->set_output_encoding('UTF-8');
+
+			if (defined('DAEMON_EXTENDED_DEBUG') || $_GET['xdebug']) {
+				_debug("feed update interval (sec): " .
+					get_feed_update_interval($link, $feed)*60);
+			}
+
+			if (is_dir(SIMPLEPIE_CACHE_DIR)) {
+				$rss->set_cache_location(SIMPLEPIE_CACHE_DIR);
+				$rss->set_cache_duration(get_feed_update_interval($link, $feed) * 60);
+			}
+
 			$rss->init();
 		}
 

update_daemon.php

@@ -9,6 +9,7 @@
 	declare(ticks = 1);
 
 	define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache-daemon');
+	define('SIMPLEPIE_CACHE_DIR',	'/var/tmp/simplepie-ttrss-cache-daemon');
 	define('DISABLE_SESSIONS', true);
 
 	require_once "version.php";