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#!/usr/bin/php
<?php
// this daemon runs in the background and updates all feeds
// continuously
// define('DEFAULT_ERROR_LEVEL', E_ALL);
define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
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";
if (strpos(VERSION, ".99") !== false) {
define('DAEMON_EXTENDED_DEBUG', true);
}
define('PURGE_INTERVAL', 3600); // seconds
require_once "sanity_check.php";
require_once "config.php";
if (!ENABLE_UPDATE_DAEMON) {
die("Please enable option ENABLE_UPDATE_DAEMON in config.php\n");
}
require_once "db.php";
require_once "db-prefs.php";
require_once "functions.php";
require_once "magpierss/rss_fetch.inc";
error_reporting(DEFAULT_ERROR_LEVEL);
function sigint_handler() {
unlink("update_daemon.lock");
die("Received SIGINT. Exiting.\n");
}
function sigalrm_handler() {
die("received SIGALRM, hang in feed update?\n");
}
pcntl_signal(SIGINT, sigint_handler);
pcntl_signal(SIGALRM, sigalrm_handler);
$lock_handle = make_lockfile("update_daemon.lock");
if (!$lock_handle) {
die("error: Can't create lockfile ($lock_filename). ".
"Maybe another daemon is already running.\n");
}
$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
if (!$link) {
if (DB_TYPE == "mysql") {
print mysql_error();
}
// PG seems to display its own errors just fine by default.
return;
}
if (DB_TYPE == "pgsql") {
pg_query("set client_encoding = 'utf-8'");
pg_set_client_encoding("UNICODE");
} else {
if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
db_query($link, "SET NAMES " . MYSQL_CHARSET);
// db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
}
}
$last_purge = 0;
while (true) {
if (!make_stampfile('update_daemon.stamp')) {
print "error: unable to create stampfile";
die;
}
if (time() - $last_purge > PURGE_INTERVAL) {
_debug("Purging old posts (random 30 feeds)...");
global_purge_old_posts($link, true, 30);
$last_purge = time();
}
// FIXME: get all scheduled updates w/forced refetch
// Stub, until I figure out if it is really needed.
# $result = db_query($link, "SELECT * FROM ttrss_scheduled_updates ORDER BY id");
# while ($line = db_fetch_assoc($result)) {
# print "Scheduled feed update: " . $line["feed_id"] . ", UID: " .
# $line["owner_uid"] . "\n";
# }
// Process all other feeds using last_updated and interval parameters
$random_qpart = sql_random_function();
/*
ttrss_entries.date_entered < NOW() - INTERVAL '$purge_interval days'");
}
$rows = pg_affected_rows($result);
} else {
$result = db_query($link, "DELETE FROM ttrss_user_entries
USING ttrss_user_entries, ttrss_entries
WHERE ttrss_entries.id = ref_id AND
marked = false AND
feed_id = '$feed_id' AND
ttrss_entries.date_entered < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
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 = "";
}
$result = db_query($link, "SELECT feed_url,ttrss_feeds.id,owner_uid,
SUBSTRING(last_updated,1,19) AS last_updated,
update_interval
FROM
ttrss_feeds,ttrss_users
WHERE
ttrss_users.id = owner_uid $login_thresh_qpart
ORDER BY $random_qpart DESC");
$user_prefs_cache = array();
_debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
while ($line = db_fetch_assoc($result)) {
$upd_intl = $line["update_interval"];
$user_id = $line["owner_uid"];
if (!$upd_intl || $upd_intl == 0) {
if (!$user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL']) {
$upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
$user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'] = $upd_intl;
} else {
$upd_intl = $user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'];
}
}
if ($upd_intl < 0) {
# print "Updates disabled.\n";
continue;
}
_debug("Feed: " . $line["feed_url"]);
// _debug(sprintf("\tLU: %d, INTL: %d, UID: %d) ",
// time() - strtotime($line["last_updated"]), $upd_intl*60, $user_id));
if (!$line["last_updated"] ||
time() - strtotime($line["last_updated"]) > ($upd_intl * 60)) {
_debug("Updating...");
pcntl_alarm(300);
update_rss_feed($link, $line["feed_url"], $line["id"], true);
pcntl_alarm(0);
sleep(1); // prevent flood (FIXME make this an option?)
} else {
_debug("Update not needed.");
}
}
if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
_debug("Sleeping for " . DAEMON_SLEEP_INTERVAL . " seconds...");
sleep(DAEMON_SLEEP_INTERVAL);
}
db_close($link);
?>
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