Separate cron into periodic components and use that as the main interface for scheduled tasks instead of the quaint 'poller'.

1 files changed, 181 insertions, 0 deletions

diff --git a/Zotlabs/Daemon/Cron.php b/Zotlabs/Daemon/Cron.php
new file mode 100644
index 000000000..63078edd7
--- /dev/null
+++ b/Zotlabs/Daemon/Cron.php
@@ -0,0 +1,181 @@
+<?php /** @file */
+
+namespace Zotlabs\Daemon;
+
+class Cron {
+
+	static public function run($argc,$argv) {
+
+		$maxsysload = intval(get_config('system','maxloadavg'));
+		if($maxsysload < 1)
+			$maxsysload = 50;
+		if(function_exists('sys_getloadavg')) {
+			$load = sys_getloadavg();
+			if(intval($load[0]) > $maxsysload) {
+				logger('system: load ' . $load . ' too high. Cron deferred to next scheduled run.');
+				return;
+			}
+		}
+
+		// Check for a lockfile.  If it exists, but is over an hour old, it's stale.  Ignore it.
+		$lockfile = 'store/[data]/cron';
+		if((file_exists($lockfile)) && (filemtime($lockfile) > (time() - 3600)) 
+			&& (! get_config('system','override_cron_lockfile'))) {
+			logger("cron: Already running");
+			return;
+		}
+	
+		// Create a lockfile.  Needs two vars, but $x doesn't need to contain anything.
+		file_put_contents($lockfile, $x);
+
+		logger('cron: start');
+	
+		// run queue delivery process in the background
+
+		Master::Summon(array('Queue'));
+
+		Master::Summon(array('Poller'));
+
+		// maintenance for mod sharedwithme - check for updated items and remove them
+
+		require_once('include/sharedwithme.php');
+		apply_updates();
+	
+
+		// expire any expired mail
+
+		q("delete from mail where expires != '%s' and expires < %s ",
+			dbesc(NULL_DATE),
+			db_utcnow()
+		);
+
+		// expire any expired items
+
+		$r = q("select id from item where expires != '%s' and expires < %s 
+			and item_deleted = 0 ",
+			dbesc(NULL_DATE),
+			db_utcnow()
+		);
+		if($r) {
+			require_once('include/items.php');
+			foreach($r as $rr)
+				drop_item($rr['id'],false);
+		}
+
+
+		// Ensure that every channel pings a directory server once a month. This way we can discover
+		// channels and sites that quietly vanished and prevent the directory from accumulating stale
+		// or dead entries.
+
+		$r = q("select channel_id from channel where channel_dirdate < %s - INTERVAL %s",
+			db_utcnow(), 
+			db_quoteinterval('30 DAY')
+		);
+		if($r) {
+			foreach($r as $rr) {
+				Master::Summon(array('Directory',$rr['channel_id'],'force'));
+				if($interval)
+					@time_sleep_until(microtime(true) + (float) $interval);
+			}
+		}
+
+		// publish any applicable items that were set to be published in the future
+		// (time travel posts). Restrict to items that have come of age in the last
+		// couple of days to limit the query to something reasonable. 
+
+		$r = q("select id from item where item_delayed = 1 and created <= %s  and created > '%s' ",
+			db_utcnow(),
+			dbesc(datetime_convert('UTC','UTC','now - 2 days'))
+		);
+		if($r) {
+			foreach($r as $rr) {
+				$x = q("update item set item_delayed = 0 where id = %d",
+					intval($rr['id'])
+				);
+				if($x) {
+					Master::Summon(array('Notifier','wall-new',$rr['id']));
+				}
+			}
+		}
+
+		$abandon_days = intval(get_config('system','account_abandon_days'));
+		if($abandon_days < 1)
+			$abandon_days = 0;
+
+	
+		// once daily run birthday_updates and then expire in background
+
+		// FIXME: add birthday updates, both locally and for xprof for use
+		// by directory servers
+
+		$d1 = intval(get_config('system','last_expire_day'));
+		$d2 = intval(datetime_convert('UTC','UTC','now','d'));
+
+		// Allow somebody to staggger daily activities if they have more than one site on their server,
+		// or if it happens at an inconvenient (busy) hour.
+
+		$h1 = intval(get_config('system','cron_hour'));
+		$h2 = intval(datetime_convert('UTC','UTC','now','G'));
+
+
+		if(($d2 != $d1) && ($h1 == $h2)) {
+			Master::Summon('Cron_daily');
+		}
+
+		// update any photos which didn't get imported properly
+		// This should be rare
+
+		$r = q("select xchan_photo_l, xchan_hash from xchan where xchan_photo_l != '' and xchan_photo_m = '' 
+			and xchan_photo_date < %s - INTERVAL %s",
+			db_utcnow(), 
+			db_quoteinterval('1 DAY')
+		);
+		if($r) {
+			require_once('include/photo/photo_driver.php');
+			foreach($r as $rr) {
+				$photos = import_xchan_photo($rr['xchan_photo_l'],$rr['xchan_hash']);
+				$x = q("update xchan set xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s'
+					where xchan_hash = '%s'",
+					dbesc($photos[0]),
+					dbesc($photos[1]),
+					dbesc($photos[2]),
+					dbesc($photos[3]),
+					dbesc($rr['xchan_hash'])
+				);
+			}
+		}
+
+
+		// pull in some public posts
+
+		if(! get_config('system','disable_discover_tab'))
+			Master::Summon(array('Externals'));
+
+		$generation = 0;
+
+		$restart    = false;
+
+		if(($argc > 1) && ($argv[1] == 'restart')) {
+			$restart = true;
+			$generation = intval($argv[2]);
+			if(! $generation)
+				killme();		
+		}
+
+		reload_plugins();
+
+		$d = datetime_convert();
+
+		// TODO check to see if there are any cronhooks before wasting a process
+
+		if(! $restart)
+			Master::Summon(array('Cronhooks'));
+
+		set_config('system','lastcron',datetime_convert());
+
+		//All done - clear the lockfile	
+		@unlink($lockfile);
+
+		return;
+	}
+}