+ } // function encrypt_password
+
+ /**
+ * Update a feed batch.
+ * Used by daemons to update n feeds by run.
+ * Only update feed needing a update, and not being processed
+ * by another process.
+ *
+ * @param mixed $link Database link
+ * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
+ * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
+ * @param boolean $debug Set to false to disable debug output. Default to true.
+ * @return void
+ */
+ function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
+ // Process all other feeds using last_updated and interval parameters
+
+ // Test if the user has loggued in recently. If not, it does not update its feeds.
+ if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
+ if (DB_TYPE == "pgsql") {
+ $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
+ } else {
+ $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
+ }
+ } else {
+ $login_thresh_qpart = "";
+ }
+
+ // Test if the feed need a update (update interval exceded).
+ if (DB_TYPE == "pgsql") {
+ $update_limit_qpart = "AND ((
+ ttrss_feeds.update_interval = 0
+ AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
+ ) OR (
+ ttrss_feeds.update_interval > 0
+ AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
+ ))";
+ } else {
+ $update_limit_qpart = "AND ((
+ ttrss_feeds.update_interval = 0
+ AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
+ ) OR (
+ ttrss_feeds.update_interval > 0
+ AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
+ ))";
+ }
+
+ // Test if feed is currently being updated by another process.
+ if (DB_TYPE == "pgsql") {
+ $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
+ } else {
+ $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
+ }
+
+ // Test if there is a limit to number of updated feeds
+ $query_limit = "";
+ if($limit) $query_limit = sprintf("LIMIT %d", $limit);
+
+ // We search for feed needing update.
+ $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
+ SUBSTRING(ttrss_feeds.last_updated,1,19) AS last_updated,
+ ttrss_feeds.update_interval
+ FROM
+ ttrss_feeds, ttrss_users, ttrss_user_prefs
+ WHERE
+ ttrss_feeds.owner_uid = ttrss_users.id
+ AND ttrss_users.id = ttrss_user_prefs.owner_uid
+ AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
+ $login_thresh_qpart $update_limit_qpart
+ $updstart_thresh_qpart
+ ORDER BY ttrss_feeds.last_updated ASC $query_limit");
+
+ $user_prefs_cache = array();
+
+ if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
+
+ // Here is a little cache magic in order to minimize risk of double feed updates.
+ $feeds_to_update = array();
+ while ($line = db_fetch_assoc($result)) {
+ $feeds_to_update[$line['id']] = $line;
+ }
+
+ // We update the feed last update started date before anything else.
+ // There is no lag due to feed contents downloads
+ // It prevent an other process to update the same feed.
+ $feed_ids = array_keys($feeds_to_update);
+ if($feed_ids) {
+ db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
+ WHERE id IN (%s)", implode(',', $feed_ids)));
+ }
+
+ // For each feed, we call the feed update function.
+ while ($line = array_pop($feeds_to_update)) {
+
+ if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
+
+ // We setup a alarm to alert if the feed take more than 300s to update.
+ // => HANG alarm.
+ if(!$from_http) pcntl_alarm(300);
+ update_rss_feed($link, $line["feed_url"], $line["id"], true);
+ // Cancel the alarm (the update went well)
+ if(!$from_http) pcntl_alarm(0);
+
+ sleep(1); // prevent flood (FIXME make this an option?)
+ }
+
+ // Send feed digests by email if needed.
+ if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
+
+ } // function update_daemon_common