X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Fpoller.php;h=89e4488b92c2239ae09ddb68a3f5c5563fead479;hb=cfe8094b458c62cbab0b79dd957c31dbf60a26c4;hp=1d88fe447fb9e6a018b9b8e076382f7c8ace4ef9;hpb=147d7f3bbf6c785f2c1eb7cdcfaa0a47e0ee43d3;p=friendica.git

diff --git a/include/poller.php b/include/poller.php
index 1d88fe447f..89e4488b92 100644
--- a/include/poller.php
+++ b/include/poller.php
@@ -1,47 +1,90 @@
 <?php
+
 require_once("boot.php");
 
+
 function poller_run($argv, $argc){
-  global $a, $db;
+	global $a, $db;
 
-  if(is_null($a)){
-    $a = new App;
-  }
+	if(is_null($a)) {
+		$a = new App;
+	}
   
-  if(is_null($db)){
-    @include(".htconfig.php");
-    require_once("dba.php");
-    $db = new dba($db_host, $db_user, $db_pass, $db_data);
-    unset($db_host, $db_user, $db_pass, $db_data);
-  };
-
-	require_once('session.php');
-	require_once('datetime.php');
-	require_once('simplepie/simplepie.inc');
+	if(is_null($db)) {
+	    @include(".htconfig.php");
+    	require_once("dba.php");
+	    $db = new dba($db_host, $db_user, $db_pass, $db_data);
+    	unset($db_host, $db_user, $db_pass, $db_data);
+  	};
+
+
+	require_once('include/session.php');
+	require_once('include/datetime.php');
+	require_once('library/simplepie/simplepie.inc');
 	require_once('include/items.php');
 	require_once('include/Contact.php');
+	require_once('include/email.php');
+	require_once('include/socgraph.php');
+
+	load_config('config');
+	load_config('system');
 
 	$a->set_baseurl(get_config('system','url'));
 
+	load_hooks();
+
 	logger('poller: start');
 	
 	// run queue delivery process in the background
 
-	$php_path = ((x($a->config,'php_path') && strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
-	//proc_close(proc_open("\"$php_path\" \"include/queue.php\" &", array(), $foo));
-	proc_run($php_path,"include/queue.php");
+	proc_run('php',"include/queue.php");
 	
+	// expire any expired accounts
+
+	q("UPDATE user SET `account_expired` = 1 where `account_expired` = 0 
+		AND `account_expires_on` != '0000-00-00 00:00:00' 
+		AND `account_expires_on` < UTC_TIMESTAMP() ");
+  
+	$abandon_days = intval(get_config('system','account_abandon_days'));
+	if($abandon_days < 1)
+		$abandon_days = 0;
+
+	
+
+	// once daily run birthday_updates and then expire in background
+
+	$d1 = get_config('system','last_expire_day');
+	$d2 = intval(datetime_convert('UTC','UTC','now','d'));
+
+	if($d2 != intval($d1)) {
+
+		update_contact_birthdays();
+
+		update_suggestions();
+
+		set_config('system','last_expire_day',$d2);
+		proc_run('php','include/expire.php');
+	}
+
 	// clear old cache
-	q("DELETE FROM `cache` WHERE `updated`<'%s'",
-		dbesc(datetime_convert('UTC','UTC',"now - 30 days")));
+	Cache::clear();
 
 	$manual_id  = 0;
+	$generation = 0;
 	$hub_update = false;
 	$force      = false;
+	$restart    = false;
 
 	if(($argc > 1) && ($argv[1] == 'force'))
 		$force = true;
 
+	if(($argc > 1) && ($argv[1] == 'restart')) {
+		$restart = true;
+		$generation = intval($argv[2]);
+		if(! $generation)
+			killme();		
+	}
+
 	if(($argc > 1) && intval($argv[1])) {
 		$manual_id = intval($argv[1]);
 		$force     = true;
@@ -49,245 +92,468 @@ function poller_run($argv, $argc){
 
 	$sql_extra = (($manual_id) ? " AND `id` = $manual_id " : "");
 
-	// 'stat' clause is a temporary measure until we have federation subscriptions working both directions
-	$contacts = q("SELECT * FROM `contact` 
-		WHERE ( ( `network` = 'dfrn' AND ( `dfrn-id` != '' OR (`issued-id` != '' AND `duplex` = 1)))
-		OR ( `network` IN ( 'stat', 'feed' ) AND `poll` != '' ))
-		$sql_extra 
-		AND `self` = 0 AND `blocked` = 0 AND `readonly` = 0 ORDER BY RAND()");
+	reload_plugins();
+
+	$d = datetime_convert();
+
+	if(! $restart)
+		proc_run('php','include/cronhooks.php');
 
-	if(! count($contacts)){
+	// Only poll from those with suitable relationships,
+	// and which have a polling address and ignore Diaspora since 
+	// we are unable to match those posts with a Diaspora GUID and prevent duplicates.
+
+	$abandon_sql = (($abandon_days) 
+		? sprintf(" AND `user`.`login_date` > UTC_TIMESTAMP() - INTERVAL %d DAY ", intval($abandon_days)) 
+		: '' 
+	);
+
+	$contacts = q("SELECT `contact`.`id` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid` 
+		WHERE ( `rel` = %d OR `rel` = %d ) AND `poll` != ''
+		AND NOT `network` IN ( '%s', '%s' )
+		$sql_extra 
+		AND `self` = 0 AND `contact`.`blocked` = 0 AND `contact`.`readonly` = 0 
+		AND `user`.`account_expired` = 0 $abandon_sql ORDER BY RAND()",
+		intval(CONTACT_IS_SHARING),
+		intval(CONTACT_IS_FRIEND),
+		dbesc(NETWORK_DIASPORA),
+		dbesc(NETWORK_FACEBOOK)
+	);
+
+	if(! count($contacts)) {
 		return;
 	}
 
-	foreach($contacts as $contact) {
+	foreach($contacts as $c) {
 
-		if($manual_id)
-			$contact['last-update'] = '0000-00-00 00:00:00';
+		$res = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
+			intval($c['id'])
+		);
+
+		if((! $res) || (! count($res)))
+			continue;
 
-		if($contact['priority'] || $contact['subhub']) {
+		foreach($res as $contact) {
 
-			$hub_update = true;
-			$update     = false;
+			$xml = false;
 
-			$t = $contact['last-update'];
+			if($manual_id)
+				$contact['last-update'] = '0000-00-00 00:00:00';
 
-			// We should be getting everything via a hub. But just to be sure, let's check once a day.
-			// (You can make this more or less frequent if desired by setting 'pushpoll_frequency' appropriately)
-			// This also lets us update our subscription to the hub, and add or replace hubs in case it
-			// changed. We will only update hubs once a day, regardless of 'pushpoll_frequency'. 
+			if($contact['network'] === NETWORK_DFRN || $contact['network'] === NETWORK_OSTATUS)
+				$contact['priority'] = 2;
 
+			if($contact['priority'] || $contact['subhub']) {
 
-			if($contact['subhub']) {
-				$interval = get_config('system','pushpoll_frequency');
-				$contact['priority'] = (($interval !== false) ? intval($interval) : 3);
-				$hub_update = false;
+				$hub_update = true;
+				$update     = false;
 
-				if((datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 day")) || $force)
-						$hub_update = true;
-			}
+				$t = $contact['last-update'];
 
+				// We should be getting everything via a hub. But just to be sure, let's check once a day.
+				// (You can make this more or less frequent if desired by setting 'pushpoll_frequency' appropriately)
+				// This also lets us update our subscription to the hub, and add or replace hubs in case it
+				// changed. We will only update hubs once a day, regardless of 'pushpoll_frequency'. 
 
-			/**
-			 * Based on $contact['priority'], should we poll this site now? Or later?
-			 */			
-
-			switch ($contact['priority']) {
-				case 5:
-					if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 month"))
-						$update = true;
-					break;					
-				case 4:
-					if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 week"))
-						$update = true;
-					break;
-				case 3:
-					if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 day"))
-						$update = true;
-					break;
-				case 2:
-					if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 12 hour"))
-						$update = true;
-					break;
-				case 1:
-				default:
-					if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 hour"))
-						$update = true;
-					break;
+
+				if($contact['subhub']) {
+					$interval = get_config('system','pushpoll_frequency');
+					$contact['priority'] = (($interval !== false) ? intval($interval) : 3);
+					$hub_update = false;
+	
+					if((datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 day")) || $force)
+							$hub_update = true;
+				}
+				else
+					$hub_update = false;
+
+				/**
+				 * Based on $contact['priority'], should we poll this site now? Or later?
+				 */			
+
+				switch ($contact['priority']) {
+					case 5:
+						if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 month"))
+							$update = true;
+						break;					
+					case 4:
+						if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 week"))
+							$update = true;
+						break;
+					case 3:
+						if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 day"))
+							$update = true;
+						break;
+					case 2:
+						if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 12 hour"))
+							$update = true;
+						break;
+					case 1:
+					default:
+						if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 hour"))
+							$update = true;
+						break;
+				}
+				if((! $update) && (! $force))
+					continue;
 			}
-			if((! $update) && (! $force))
-				continue;
-		}
 
-		$importer_uid = $contact['uid'];
+			// Check to see if we are running out of memory - if so spawn a new process and kill this one
+
+			$avail_memory = return_bytes(ini_get('memory_limit'));
+			$memused = memory_get_peak_usage(true);
+			if(intval($avail_memory)) {
+				if(($memused / $avail_memory) > 0.95) {
+					if($generation + 1 > 10) {
+						logger('poller: maximum number of spawns exceeded. Terminating.');
+						killme();
+					}
+					logger('poller: memory exceeded. ' . $memused . ' bytes used. Spawning new poll.');
+					proc_run('php', 'include/poller.php', 'restart', (string) $generation + 1);
+					killme();
+				}
+			}
 
-		$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
-			intval($importer_uid)
-		);
-		if(! count($r))
-			continue;
+			$importer_uid = $contact['uid'];
+		
+			$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
+				intval($importer_uid)
+			);
+			if(! count($r))
+				continue;
 
-		$importer = $r[0];
+			$importer = $r[0];
 
-		logger("poller: poll: IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
+			logger("poller: poll: ({$contact['id']}) IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
 
-		$last_update = (($contact['last-update'] === '0000-00-00 00:00:00') 
-			? datetime_convert('UTC','UTC','now - 30 days', ATOM_TIME)
-			: datetime_convert('UTC','UTC',$contact['last-update'], ATOM_TIME)
-		);
+			$last_update = (($contact['last-update'] === '0000-00-00 00:00:00') 
+				? datetime_convert('UTC','UTC','now - 30 days', ATOM_TIME)
+				: datetime_convert('UTC','UTC',$contact['last-update'], ATOM_TIME)
+			);
+
+			if($contact['network'] === NETWORK_DFRN) {
 
-		if($contact['network'] === 'dfrn') {
+				$idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
 
-			$idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
+				if(intval($contact['duplex']) && $contact['dfrn-id'])
+					$idtosend = '0:' . $orig_id;
+				if(intval($contact['duplex']) && $contact['issued-id'])
+					$idtosend = '1:' . $orig_id;
 
-			if(intval($contact['duplex']) && $contact['dfrn-id'])
-				$idtosend = '0:' . $orig_id;
-			if(intval($contact['duplex']) && $contact['issued-id'])
-				$idtosend = '1:' . $orig_id;		
+				// they have permission to write to us. We already filtered this in the contact query.
+				$perm = 'rw';
 
-			$url = $contact['poll'] . '?dfrn_id=' . $idtosend 
-				. '&dfrn_version=' . DFRN_PROTOCOL_VERSION 
-				. '&type=data&last_update=' . $last_update ;
+				$url = $contact['poll'] . '?dfrn_id=' . $idtosend 
+					. '&dfrn_version=' . DFRN_PROTOCOL_VERSION 
+					. '&type=data&last_update=' . $last_update 
+					. '&perm=' . $perm ;
 	
-			$xml = fetch_url($url);
+				$handshake_xml = fetch_url($url);
 
-			logger('poller: handshake with url ' . $url . ' returns xml: ' . $xml, LOGGER_DATA);
+				logger('poller: handshake with url ' . $url . ' returns xml: ' . $handshake_xml, LOGGER_DATA);
 
 
-			if(! $xml) {
-				logger("poller: $url appears to be dead - marking for death ");
-				// dead connection - might be a transient event, or this might
-				// mean the software was uninstalled or the domain expired. 
-				// Will keep trying for one month.
-				mark_for_death($contact);
+				if(! $handshake_xml) {
+					logger("poller: $url appears to be dead - marking for death ");
+					// dead connection - might be a transient event, or this might
+					// mean the software was uninstalled or the domain expired. 
+					// Will keep trying for one month.
+					mark_for_death($contact);
 
-				// set the last-update so we don't keep polling
+					// set the last-update so we don't keep polling
 
-				$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
-					dbesc(datetime_convert()),
-					intval($contact['id'])
-				);
+					$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
+						dbesc(datetime_convert()),
+						intval($contact['id'])
+					);
 
-				continue;
-			}
+					continue;
+				}
 
-			if(! strstr($xml,'<?xml')) {
-				logger('poller: response from ' . $url . ' did not contain XML.');
-				$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
-					dbesc(datetime_convert()),
-					intval($contact['id'])
-				);
-				continue;
-			}
+				if(! strstr($handshake_xml,'<?xml')) {
+					logger('poller: response from ' . $url . ' did not contain XML.');
+					$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
+						dbesc(datetime_convert()),
+						intval($contact['id'])
+					);
+					continue;
+				}
 
 
-			$res = simplexml_load_string($xml);
+				$res = parse_xml_string($handshake_xml);
+	
+				if(intval($res->status) == 1) {
+					logger("poller: $url replied status 1 - marking for death ");
 
-			if(intval($res->status) == 1) {
-				logger("poller: $url replied status 1 - marking for death ");
+					// we may not be friends anymore. Will keep trying for one month.
+					// set the last-update so we don't keep polling
 
-				// we may not be friends anymore. Will keep trying for one month.
-				// set the last-update so we don't keep polling
+					$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
+						dbesc(datetime_convert()),
+						intval($contact['id'])
+					);
 
-				$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
-					dbesc(datetime_convert()),
-					intval($contact['id'])
-				);
+					mark_for_death($contact);
+				}
+				else {
+					if($contact['term-date'] != '0000-00-00 00:00:00') {
+						logger("poller: $url back from the dead - removing mark for death");
+						unmark_for_death($contact);
+					}
+				}
 
-				mark_for_death($contact);
-			}
-			else {
-				if($contact['term-date'] != '0000-00-00 00:00:00') {
-					logger("poller: $url back from the dead - removing mark for death");
-					unmark_for_death($contact);
+				if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
+					continue;
+
+				if(((float) $res->dfrn_version > 2.21) && ($contact['poco'] == '')) {
+					q("update contact set poco = '%s' where id = %d limit 1",
+						dbesc(str_replace('/profile/','/poco/', $contact['url'])),
+						intval($contact['id'])
+					);
 				}
-			}
 
-			if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
-				continue;
+				$postvars = array();
 
-			$postvars = array();
+				$sent_dfrn_id = hex2bin((string) $res->dfrn_id);
+				$challenge    = hex2bin((string) $res->challenge);
 
-			$sent_dfrn_id = hex2bin((string) $res->dfrn_id);
-			$challenge    = hex2bin((string) $res->challenge);
+				$final_dfrn_id = '';
 
-			$final_dfrn_id = '';
+				if(($contact['duplex']) && strlen($contact['prvkey'])) {
+					openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
+					openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
+				}
+				else {
+					openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
+					openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
+				}
 
-			if(($contact['duplex']) && strlen($contact['prvkey'])) {
-				openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
-				openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
-			}
-			else {
-				openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
-				openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
-			}
+				$final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
 
-			$final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
+				if(strpos($final_dfrn_id,':') == 1)
+					$final_dfrn_id = substr($final_dfrn_id,2);
 
-			if(strpos($final_dfrn_id,':') == 1)
-				$final_dfrn_id = substr($final_dfrn_id,2);
+				if($final_dfrn_id != $orig_id) {
+					logger('poller: ID did not decode: ' . $contact['id'] . ' orig: ' . $orig_id . ' final: ' . $final_dfrn_id);	
+					// did not decode properly - cannot trust this site 
+					continue;
+				}
 
-			if($final_dfrn_id != $orig_id) {
+				$postvars['dfrn_id'] = $idtosend;
+				$postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
+				$postvars['perm'] = 'rw';
 
-				// did not decode properly - cannot trust this site 
-				continue;
+				$xml = post_url($contact['poll'],$postvars);
 			}
+			elseif(($contact['network'] === NETWORK_OSTATUS) 
+				|| ($contact['network'] === NETWORK_DIASPORA)
+				|| ($contact['network'] === NETWORK_FEED) ) {
 
-			$postvars['dfrn_id'] = $idtosend;
-			$postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
+				// Upgrading DB fields from an older Friendika version
+				// Will only do this once per notify-enabled OStatus contact
+				// or if relationship changes
 
-			$xml = post_url($contact['poll'],$postvars);
-		}
-		else {
+				$stat_writeable = ((($contact['notify']) && ($contact['rel'] == CONTACT_IS_FOLLOWER || $contact['rel'] == CONTACT_IS_FRIEND)) ? 1 : 0);
 
-			// $contact['network'] !== 'dfrn'
+				if($stat_writeable != $contact['writable']) {
+					q("UPDATE `contact` SET `writable` = %d WHERE `id` = %d LIMIT 1",
+						intval($stat_writeable),
+						intval($contact['id'])
+					);
+				}
 
-			$xml = fetch_url($contact['poll']);
-		}
+				// Are we allowed to import from this person?
 
-		logger('poller: received xml : ' . $xml, LOGGER_DATA);
+				if($contact['rel'] == CONTACT_IS_FOLLOWER || $contact['blocked'] || $contact['readonly'])
+					continue;
 
-		if(! strstr($xml,'<?xml')) {
-			logger('poller: post_handshake: response from ' . $url . ' did not contain XML.');
-			$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
-				dbesc(datetime_convert()),
-				intval($contact['id'])
-			);
-			continue;
-		}
+				$xml = fetch_url($contact['poll']);
+			}
+			elseif($contact['network'] === NETWORK_MAIL) {
 
-		consume_feed($xml,$importer,$contact,$hub,1);
+				$mail_disabled = ((function_exists('imap_open') && (! get_config('system','imap_disabled'))) ? 0 : 1);
+				if($mail_disabled)
+					continue;
 
-		// do it twice. Ensures that children of parents which may be later in the stream aren't tossed
+				$mbox = null;
+				$x = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1",
+					intval($importer_uid)
+				);
+				$mailconf = q("SELECT * FROM `mailacct` WHERE `server` != '' AND `uid` = %d LIMIT 1",
+					intval($importer_uid)
+				);
+				if(count($x) && count($mailconf)) {
+				    $mailbox = construct_mailbox_name($mailconf[0]);
+					$password = '';
+					openssl_private_decrypt(hex2bin($mailconf[0]['pass']),$password,$x[0]['prvkey']);
+					$mbox = email_connect($mailbox,$mailconf[0]['user'],$password);
+					unset($password);
+					if($mbox) {
+						q("UPDATE `mailacct` SET `last_check` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
+							dbesc(datetime_convert()),
+							intval($mailconf[0]['id']),
+							intval($importer_uid)
+						);
+					}
+				}
+				if($mbox) {
+
+					$msgs = email_poll($mbox,$contact['addr']);
+
+					if(count($msgs)) {
+						foreach($msgs as $msg_uid) {
+							$datarray = array();
+							$meta = email_msg_meta($mbox,$msg_uid);
+							$headers = email_msg_headers($mbox,$msg_uid);
+
+							// look for a 'references' header and try and match with a parent item we have locally.
+
+							$raw_refs = ((x($headers,'references')) ? str_replace("\t",'',$headers['references']) : '');
+							$datarray['uri'] = trim($meta->message_id,'<>');
+
+							if($raw_refs) {
+								$refs_arr = explode(' ', $raw_refs);
+								if(count($refs_arr)) {
+									for($x = 0; $x < count($refs_arr); $x ++)
+										$refs_arr[$x] = "'" . str_replace(array('<','>',' '),array('','',''),dbesc($refs_arr[$x])) . "'";
+								}
+								$qstr = implode(',',$refs_arr);
+								$r = q("SELECT `uri` , `parent-uri` FROM `item` WHERE `uri` IN ( $qstr ) AND `uid` = %d LIMIT 1",
+									intval($importer_uid)
+								);
+								if(count($r))
+									$datarray['parent-uri'] = $r[0]['uri'];
+							}
+
+
+							if(! x($datarray,'parent-uri'))
+								$datarray['parent-uri'] = $datarray['uri'];
+
+							// Have we seen it before?
+							$r = q("SELECT * FROM `item` WHERE `uid` = %d AND `uri` = '%s' LIMIT 1",
+								intval($importer_uid),
+								dbesc($datarray['uri'])
+							);
+
+							if(count($r)) {
+								if($meta->deleted && ! $r[0]['deleted']) {
+									q("UPDATE `item` SET `deleted` = 1, `changed` = '%s' WHERE `id` = %d LIMIT 1",
+										dbesc(datetime_convert()),
+										intval($r[0]['id'])
+									);
+								}		
+								continue;
+							}
+							$datarray['title'] = notags(trim($meta->subject));
+							$datarray['created'] = datetime_convert('UTC','UTC',$meta->date);
+	
+							$r = email_get_msg($mbox,$msg_uid);
+							if(! $r)
+								continue;
+							$datarray['body'] = escape_tags($r['body']);
+
+							// some mailing lists have the original author as 'from' - add this sender info to msg body. 
+							// todo: adding a gravatar for the original author would be cool
+
+							if(! stristr($meta->from,$contact['addr']))
+								$datarray['body'] = t('From: ') . escape_tags($meta->from) . "\n\n" . $datarray['body'];
+
+							$datarray['uid'] = $importer_uid;
+							$datarray['contact-id'] = $contact['id'];
+							if($datarray['parent-uri'] === $datarray['uri'])
+								$datarray['private'] = 1;
+							if(! get_pconfig($importer_uid,'system','allow_public_email_replies')) {
+								$datarray['private'] = 1;
+								$datarray['allow_cid'] = '<' . $contact['id'] . '>';
+							}
+							$datarray['author-name'] = $contact['name'];
+							$datarray['author-link'] = 'mailbox';
+							$datarray['author-avatar'] = $contact['photo'];
+						
+							$stored_item = item_store($datarray);
+							q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d",
+								dbesc($datarray['parent-uri']),
+								intval($importer_uid)
+							);
+							q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
+								intval($stored_item)
+							);
+						}
+					}
+
+					imap_close($mbox);
+				}
+			}
+			elseif($contact['network'] === NETWORK_FACEBOOK) {
+				// This is picked up by the Facebook plugin on a cron hook.
+				// Ignored here.			
+			}
 
-		consume_feed($xml,$importer,$contact,$hub,1);
+			if($xml) {
+				logger('poller: received xml : ' . $xml, LOGGER_DATA);
 
+				if(! strstr($xml,'<?xml')) {
+					logger('poller: post_handshake: response from ' . $url . ' did not contain XML.');
+					$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
+						dbesc(datetime_convert()),
+						intval($contact['id'])
+					);
+					continue;
+				}
+
+
+				consume_feed($xml,$importer,$contact,$hub,1,1);
 
-		if((strlen($hub)) && ($hub_update) 
-			&& (($contact['rel'] == REL_BUD) || (($contact['network'] === 'stat') && (! $contact['readonly'])))) {
-			logger('poller: subscribing to hub(s) : ' . $hub . ' contact name : ' . $contact['name'] . ' local user : ' . $importer['name']);
-			$hubs = explode(',', $hub);
-			if(count($hubs)) {
-				foreach($hubs as $h) {
-					$h = trim($h);
-					if(! strlen($h))
-						continue;
-					subscribe_to_hub($h,$importer,$contact);
+				// do it twice. Ensures that children of parents which may be later in the stream aren't tossed
+	
+				consume_feed($xml,$importer,$contact,$hub,1,2);
+
+				$hubmode = 'subscribe';
+				if($contact['network'] === NETWORK_DFRN || $contact['blocked'] || $contact['readonly'])
+					$hubmode = 'unsubscribe';
+
+				if((strlen($hub)) && ($hub_update) && ($contact['rel'] != CONTACT_IS_FOLLOWER)) {
+					logger('poller: hub ' . $hubmode . ' : ' . $hub . ' contact name : ' . $contact['name'] . ' local user : ' . $importer['name']);
+					$hubs = explode(',', $hub);
+					if(count($hubs)) {
+						foreach($hubs as $h) {
+							$h = trim($h);
+							if(! strlen($h))
+								continue;
+							subscribe_to_hub($h,$importer,$contact,$hubmode);
+						}
+					}
 				}
 			}
-		}
 
 
-		$updated = datetime_convert();
+			$updated = datetime_convert();
 
-		$r = q("UPDATE `contact` SET `last-update` = '%s', `success_update` = '%s' WHERE `id` = %d LIMIT 1",
-			dbesc($updated),
-			dbesc($updated),
-			intval($contact['id'])
-		);
+			$r = q("UPDATE `contact` SET `last-update` = '%s', `success_update` = '%s' WHERE `id` = %d LIMIT 1",
+				dbesc($updated),
+				dbesc($updated),
+				intval($contact['id'])
+			);
+
+
+			// load current friends if possible.
+
+			if($contact['poco']) {	
+				$r = q("SELECT count(*) as total from glink 
+					where `cid` = %d and updated > UTC_TIMESTAMP() - INTERVAL 1 DAY",
+					intval($contact['id'])
+				);
+			}
+			if(count($r)) {
+				if(! $r[0]['total']) {
+					poco_load($contact['id'],$importer_uid,$contact['poco']);
+				}
+			}
+
+			// loop - next contact
+		}
+	}
 
-		// loop - next contact
-	}  
 		
 	return;
 }