update_daemon2: import single-file version from landure
This commit is contained in:
parent
73d3b9b1f6
commit
ffa7cbae80
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@ -1,23 +1,50 @@
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#!/usr/bin/php
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<?php
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// This is an experimental multiprocess update daemon
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// It consists of the master server (this file) and
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// client batch script (update_daemon2_client.php) which
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// should only be run by the server process
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// This is an experimental multiprocess update daemon.
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// Some configurable variable may be found below.
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// define('DEFAULT_ERROR_LEVEL', E_ALL);
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define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
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declare(ticks = 1);
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require_once "config.php";
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require_once "functions.php";
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define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache-daemon');
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define('SIMPLEPIE_CACHE_DIR', '/var/tmp/simplepie-ttrss-cache-daemon');
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define('DISABLE_SESSIONS', true);
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define('MAX_JOBS', 2);
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define('CLIENT_PROCESS', './update_daemon2_client.php SRV_RUN_OK');
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require_once "version.php";
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if (strpos(VERSION, ".99") !== false) {
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define('DAEMON_EXTENDED_DEBUG', true);
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}
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define('PURGE_INTERVAL', 3600); // seconds
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require_once "sanity_check.php";
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require_once "config.php";
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define('SPAWN_INTERVAL', DAEMON_SLEEP_INTERVAL);
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define('PHP_EXECUTABLE', '/usr/bin/php');
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if (!ENABLE_UPDATE_DAEMON) {
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die("Please enable option ENABLE_UPDATE_DAEMON in config.php\n");
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}
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require_once "db.php";
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require_once "db-prefs.php";
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require_once "functions.php";
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require_once "magpierss/rss_fetch.inc";
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error_reporting(DEFAULT_ERROR_LEVEL);
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$running_jobs = 0;
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$last_checkpoint = -1;
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function sigalrm_handler() {
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die("received SIGALRM, hang in feed update?\n");
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}
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function sigchld_handler($signal) {
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global $running_jobs;
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if ($running_jobs > 0) $running_jobs--;
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@ -30,6 +57,7 @@
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die("Received SIGINT. Exiting.\n");
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}
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pcntl_signal(SIGALRM, 'sigalrm_handler');
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pcntl_signal(SIGCHLD, 'sigchld_handler');
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pcntl_signal(SIGINT, 'sigint_handler');
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@ -38,6 +66,11 @@
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"Maybe another daemon is already running.\n");
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}
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if (file_is_locked("update_daemon.lock")) {
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die("error: Can't create lockfile. ".
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"Maybe another daemon is already running.\n");
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}
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if (!pcntl_fork()) {
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$lock_handle = make_lockfile("update_daemon.lock");
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@ -49,6 +82,21 @@
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while (true) { sleep(100); }
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}
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// Testing database connection.
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// It is unnecessary to start the fork loop if database is not ok.
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$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
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if (!$link) {
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if (DB_TYPE == "mysql") {
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print mysql_error();
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}
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// PG seems to display its own errors just fine by default.
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return;
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}
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db_close($link);
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while (true) {
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$next_spawn = $last_checkpoint + SPAWN_INTERVAL - time();
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@ -70,7 +118,156 @@
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} else {
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pcntl_signal(SIGCHLD, SIG_IGN);
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pcntl_signal(SIGINT, SIG_DFL);
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passthru(PHP_EXECUTABLE . ' ' . CLIENT_PROCESS);
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// ****** Updating RSS code *******
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// Only run in fork process.
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$start_timestamp = time();
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$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
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if (!$link) {
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if (DB_TYPE == "mysql") {
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print mysql_error();
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}
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// PG seems to display its own errors just fine by default.
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return;
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}
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if (DB_TYPE == "pgsql") {
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pg_query("set client_encoding = 'utf-8'");
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pg_set_client_encoding("UNICODE");
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} else {
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if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
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db_query($link, "SET NAMES " . MYSQL_CHARSET);
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// db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
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}
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}
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// We disable stamp file, since it is of no use in a multiprocess update.
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// not really, tho for the time being -fox
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if (!make_stampfile('update_daemon.stamp')) {
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print "warning: unable to create stampfile";
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}
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// $last_purge = 0;
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// if (time() - $last_purge > PURGE_INTERVAL) {
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// FIXME : $last_purge is of no use in a multiprocess update.
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// FIXME : We ALWAYS purge old posts.
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_debug("Purging old posts (random 30 feeds)...");
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global_purge_old_posts($link, true, 30);
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// $last_purge = time();
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// }
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// Process all other feeds using last_updated and interval parameters
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$random_qpart = sql_random_function();
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if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
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if (DB_TYPE == "pgsql") {
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$login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
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} else {
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$login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
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}
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} else {
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$login_thresh_qpart = "";
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}
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if (DB_TYPE == "pgsql") {
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$update_limit_qpart = "AND ttrss_feeds.last_updated < NOW() - INTERVAL '".(DAEMON_SLEEP_INTERVAL*2)." seconds'";
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} else {
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$update_limit_qpart = "AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ".(DAEMON_SLEEP_INTERVAL*2)." SECOND)";
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}
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if (DB_TYPE == "pgsql") {
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$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
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} else {
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$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
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}
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$result = db_query($link, "SELECT feed_url,ttrss_feeds.id,owner_uid,
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SUBSTRING(last_updated,1,19) AS last_updated,
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update_interval
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FROM
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ttrss_feeds,ttrss_users
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WHERE
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ttrss_users.id = owner_uid $login_thresh_qpart $update_limit_qpart
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$updstart_thresh_qpart
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ORDER BY $random_qpart DESC LIMIT " . DAEMON_FEED_LIMIT);
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$user_prefs_cache = array();
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_debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
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// Here is a little cache magic in order to minimize risk of double feed updates.
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$feeds_to_update = array();
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while ($line = db_fetch_assoc($result)) {
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$feeds_to_update[$line['id']] = $line;
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}
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// We update the feed last update started date before anything else.
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// There is no lag due to feed contents downloads
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// It prevent an other process to update the same feed.
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$feed_ids = array_keys($feeds_to_update);
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if($feed_ids) {
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db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
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WHERE id IN (%s)", implode(',', $feed_ids)));
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}
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while ($line = array_pop($feeds_to_update)) {
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$upd_intl = $line["update_interval"];
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$user_id = $line["owner_uid"];
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if (!$upd_intl || $upd_intl == 0) {
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if (!$user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL']) {
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$upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
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$user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'] = $upd_intl;
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} else {
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$upd_intl = $user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'];
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}
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}
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if ($upd_intl < 0) {
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# print "Updates disabled.\n";
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continue;
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}
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_debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
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// _debug(sprintf("\tLU: %d, INTL: %d, UID: %d) ",
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// time() - strtotime($line["last_updated"]), $upd_intl*60, $user_id));
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if (!$line["last_updated"] ||
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time() - strtotime($line["last_updated"]) > ($upd_intl * 60)) {
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_debug("Updating...");
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pcntl_alarm(300);
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update_rss_feed($link, $line["feed_url"], $line["id"], true);
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pcntl_alarm(0);
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sleep(1); // prevent flood (FIXME make this an option?)
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} else {
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_debug("Update not needed.");
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}
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}
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if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
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print "Elapsed time: " . (time() - $start_timestamp) . " second(s)\n";
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db_close($link);
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// We are in a fork.
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// We wait a little before exiting to avoid to be faster than our parent process.
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sleep(1);
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// We exit in order to avoid fork bombing.
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exit(0);
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}
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}
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@ -1,164 +0,0 @@
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#!/usr/bin/php
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<?php
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// define('DEFAULT_ERROR_LEVEL', E_ALL);
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define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
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$start_timestamp = time();
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if ($argv[1] != "SRV_RUN_OK") {
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die("This script should be started by update_daemon2.php.\n");
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}
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declare(ticks = 1);
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define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache-daemon');
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define('SIMPLEPIE_CACHE_DIR', '/var/tmp/simplepie-ttrss-cache-daemon');
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define('DISABLE_SESSIONS', true);
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require_once "version.php";
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if (strpos(VERSION, ".99") !== false) {
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define('DAEMON_EXTENDED_DEBUG', true);
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}
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define('PURGE_INTERVAL', 3600); // seconds
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require_once "sanity_check.php";
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require_once "config.php";
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if (!ENABLE_UPDATE_DAEMON) {
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die("Please enable option ENABLE_UPDATE_DAEMON in config.php\n");
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}
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require_once "db.php";
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require_once "db-prefs.php";
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require_once "functions.php";
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require_once "magpierss/rss_fetch.inc";
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error_reporting(DEFAULT_ERROR_LEVEL);
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function sigalrm_handler() {
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die("received SIGALRM, hang in feed update?\n");
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}
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pcntl_signal(SIGALRM, sigalrm_handler);
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$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
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if (!$link) {
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if (DB_TYPE == "mysql") {
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print mysql_error();
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}
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// PG seems to display its own errors just fine by default.
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return;
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}
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if (DB_TYPE == "pgsql") {
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pg_query("set client_encoding = 'utf-8'");
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pg_set_client_encoding("UNICODE");
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} else {
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if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
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db_query($link, "SET NAMES " . MYSQL_CHARSET);
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// db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
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}
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}
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$last_purge = 0;
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if (!make_stampfile('update_daemon.stamp')) {
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print "warning: unable to create stampfile";
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}
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if (time() - $last_purge > PURGE_INTERVAL) {
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_debug("Purging old posts (random 30 feeds)...");
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global_purge_old_posts($link, true, 30);
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$last_purge = time();
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}
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// Process all other feeds using last_updated and interval parameters
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$random_qpart = sql_random_function();
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if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
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if (DB_TYPE == "pgsql") {
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$login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
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} else {
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$login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
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}
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} else {
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$login_thresh_qpart = "";
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}
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if (DB_TYPE == "pgsql") {
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$update_limit_qpart = "AND ttrss_feeds.last_updated < NOW() - INTERVAL '".(DAEMON_SLEEP_INTERVAL*2)." seconds'";
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} else {
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$update_limit_qpart = "AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ".(DAEMON_SLEEP_INTERVAL*2)." SECOND)";
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}
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if (DB_TYPE == "pgsql") {
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$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
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} else {
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$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
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}
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$result = db_query($link, "SELECT feed_url,ttrss_feeds.id,owner_uid,
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SUBSTRING(last_updated,1,19) AS last_updated,
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update_interval
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FROM
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ttrss_feeds,ttrss_users
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WHERE
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ttrss_users.id = owner_uid $login_thresh_qpart $update_limit_qpart
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$updstart_thresh_qpart
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ORDER BY $random_qpart DESC LIMIT " . DAEMON_FEED_LIMIT);
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$user_prefs_cache = array();
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_debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
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while ($line = db_fetch_assoc($result)) {
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$upd_intl = $line["update_interval"];
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$user_id = $line["owner_uid"];
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if (!$upd_intl || $upd_intl == 0) {
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if (!$user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL']) {
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$upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
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$user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'] = $upd_intl;
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} else {
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$upd_intl = $user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'];
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}
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}
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if ($upd_intl < 0) {
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# print "Updates disabled.\n";
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continue;
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}
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_debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
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// _debug(sprintf("\tLU: %d, INTL: %d, UID: %d) ",
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// time() - strtotime($line["last_updated"]), $upd_intl*60, $user_id));
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if (!$line["last_updated"] ||
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time() - strtotime($line["last_updated"]) > ($upd_intl * 60)) {
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_debug("Updating...");
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pcntl_alarm(300);
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update_rss_feed($link, $line["feed_url"], $line["id"], true);
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pcntl_alarm(0);
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sleep(1); // prevent flood (FIXME make this an option?)
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} else {
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_debug("Update not needed.");
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}
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}
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if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
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print "Elapsed time: " . (time() - $start_timestamp) . " second(s)\n";
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db_close($link);
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?>
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