pubsubhubbub endpoint

7 files changed, 363 insertions, 238 deletions

diff --git a/boot.php b/boot.php
index a264da2e6..9ebdef1bf 100644
--- a/boot.php
+++ b/boot.php
@@ -2,7 +2,7 @@
 
 set_time_limit(0);
 
-define ( 'BUILD_ID' , 1003 );
+define ( 'BUILD_ID' , 1004 );
 
 define ( 'EOL', "<br />\r\n");
 define ( 'ATOM_TIME',  'Y-m-d\TH:i:s\Z' );
diff --git a/database.sql b/database.sql
index 8f349ab21..fd709878d 100644
--- a/database.sql
+++ b/database.sql
@@ -61,7 +61,6 @@ CREATE TABLE IF NOT EXISTS `contact` (
   `issued-id` char(255) NOT NULL,
   `dfrn-id` char(255) NOT NULL,
   `url` char(255) NOT NULL,
-  `issued-pubkey` char(255) NOT NULL,
   `pubkey` text NOT NULL,
   `prvkey` text NOT NULL,
   `request` text NOT NULL,
@@ -70,8 +69,6 @@ CREATE TABLE IF NOT EXISTS `contact` (
   `confirm` text NOT NULL,
   `aes_allow` tinyint(1) NOT NULL DEFAULT '0',
   `ret-aes` tinyint(1) NOT NULL DEFAULT '0',
-  `ret-id` char(255) NOT NULL,
-  `ret-pubkey` text NOT NULL,
   `last-update` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
   `name-date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
   `uri-date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
diff --git a/include/items.php b/include/items.php
index 42355cc3c..839baf4b6 100644
--- a/include/items.php
+++ b/include/items.php
@@ -570,3 +570,237 @@ function dfrn_deliver($contact,$atom,$debugging = false) {
 	return $res->status;
  
 }
+
+
+function consume_feed($xml,$importer,$contact) {
+
+	require_once('simplepie/simplepie.inc');
+
+	$feed = new SimplePie();
+	$feed->set_raw_data($xml);
+	$feed->enable_order_by_date(false);
+	$feed->init();
+
+	// Check at the feed level for updated contact name and/or photo
+
+	$name_updated  = '';
+	$new_name = '';
+	$photo_timestamp = '';
+	$photo_url = '';
+
+	$rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
+	if($rawtags) {
+		$elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
+		if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
+			$name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
+			$new_name = $elems['name'][0]['data'];
+		} 
+		if(($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
+			$photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
+			$photo_url = $elems['link'][0]['attribs']['']['href'];
+		}
+	}
+	if(! $photo_timestamp) {
+		$photo_rawupdate = $feed->get_feed_tags(NAMESPACE_DFRN,'icon-updated');
+		if($photo_rawupdate) {
+			$photo_timestamp = datetime_convert('UTC','UTC',$photo_rawupdate[0]['data']);
+			$photo_url = $feed->get_image_url();
+		}
+	}
+	if(($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
+
+		require_once("Photo.php");
+		$photo_failure = false;
+
+		$r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
+			intval($contact['id']),
+			intval($contact['uid'])
+		);
+		if(count($r)) {
+			$resource_id = $r[0]['resource-id'];
+			$img_str = fetch_url($photo_url,true);
+			$img = new Photo($img_str);
+			if($img) {
+				q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND contact-id` = %d AND `uid` = %d",
+					dbesc($resource_id),
+					intval($contact['id']),
+					intval($contact['uid'])
+				);
+
+				$img->scaleImageSquare(175);
+				
+				$hash = $resource_id;
+				$r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 4);
+				
+				$img->scaleImage(80);
+				$r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 5);
+				if($r)
+					q("UPDATE `contact` SET `avatar-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
+						dbesc(datetime_convert()),
+						intval($contact['uid']),
+						intval($contact['id'])
+					);
+			}
+		}
+	}
+
+	if(($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
+		q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
+			dbesc(notags(trim($new_name))),
+			dbesc(datetime_convert()),
+			intval($contact['uid']),
+			intval($contact['id'])
+		);
+	}
+
+	// Now process the feed
+	if($feed->get_item_quantity()) {		
+		foreach($feed->get_items() as $item) {
+
+			$deleted = false;
+
+			$rawdelete = $item->get_item_tags( NAMESPACE_TOMB, 'deleted-entry');
+			if(isset($rawdelete[0]['attribs']['']['ref'])) {
+				$uri = $rawthread[0]['attribs']['']['ref'];
+				$deleted = true;
+				if(isset($rawdelete[0]['attribs']['']['when'])) {
+					$when = $rawthread[0]['attribs']['']['when'];
+					$when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
+				}
+				else
+					$when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
+			}
+			if($deleted) {
+				$r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
+					dbesc($uri),
+					intval($importer['uid'])
+				);
+				if(count($r)) {
+					$item = $r[0];
+					if($item['uri'] == $item['parent-uri']) {
+						$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
+							`body` = '', `title` = ''
+							WHERE `parent-uri` = '%s' AND `uid` = %d",
+							dbesc($when),
+							dbesc(datetime_convert()),
+							dbesc($item['uri']),
+							intval($importer['uid'])
+						);
+					}
+					else {
+						$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
+							`body` = '', `title` = '' 
+							WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
+							dbesc($when),
+							dbesc(datetime_convert()),
+							dbesc($uri),
+							intval($importer['uid'])
+						);
+						if($item['last-child']) {
+							// ensure that last-child is set in case the comment that had it just got wiped.
+							$q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
+								dbesc(datetime_convert()),
+								dbesc($item['parent-uri']),
+								intval($item['uid'])
+							);
+							// who is the last child now? 
+							$r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d 
+								ORDER BY `edited` DESC LIMIT 1",
+									dbesc($item['parent-uri']),
+									intval($importer['uid'])
+							);
+							if(count($r)) {
+								q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
+									intval($r[0]['id'])
+								);
+							}
+						}	
+					}
+				}	
+				continue;
+			}
+
+
+			$is_reply = false;		
+			$item_id = $item->get_id();
+			$rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
+			if(isset($rawthread[0]['attribs']['']['ref'])) {
+				$is_reply = true;
+				$parent_uri = $rawthread[0]['attribs']['']['ref'];
+			}
+
+
+			if($is_reply) {
+	
+				// Have we seen it? If not, import it.
+	
+				$item_id = $item->get_id();
+	
+				$r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
+					dbesc($item_id),
+					intval($importer['uid'])
+				);
+				// FIXME update content if 'updated' changes
+				if(count($r)) {
+					$allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
+					if($allow && $allow[0]['data'] != $r[0]['last-child']) {
+						$r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
+							dbesc(datetime_convert()),
+							dbesc($parent_uri),
+							intval($importer['uid'])
+						);
+						$r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
+							intval($allow[0]['data']),
+							dbesc(datetime_convert()),
+							dbesc($item_id),
+							intval($importer['uid'])
+						);
+
+					}
+					continue;
+				}
+				$datarray = get_atom_elements($item);
+				$datarray['parent-uri'] = $parent_uri;
+				$datarray['uid'] = $importer['uid'];
+				$datarray['contact-id'] = $contact['id'];
+				if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
+					$datarray['type'] = 'activity';
+					$datarray['gravity'] = GRAVITY_LIKE;
+				}
+
+				$r = item_store($datarray);
+				continue;
+			}
+
+			else {
+				// Head post of a conversation. Have we seen it? If not, import it.
+
+				$item_id = $item->get_id();
+				$r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
+					dbesc($item_id),
+					intval($importer['uid'])
+				);
+				if(count($r)) {
+					$allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
+					if($allow && $allow[0]['data'] != $r[0]['last-child']) {
+						$r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
+							intval($allow[0]['data']),
+							dbesc(datetime_convert()),
+							dbesc($item_id),
+							intval($importer['uid'])
+						);
+					}
+					continue;
+				}
+				$datarray = get_atom_elements($item);
+				$datarray['parent-uri'] = $item_id;
+				$datarray['uid'] = $importer['uid'];
+				$datarray['contact-id'] = $contact['id'];
+				$r = item_store($datarray);
+				continue;
+
+			}
+		}
+	}
+
+}
\ No newline at end of file
diff --git a/include/poller.php b/include/poller.php
index 6b0719b92..986c00913 100644
--- a/include/poller.php
+++ b/include/poller.php
@@ -23,7 +23,7 @@
 
 	$contacts = q("SELECT * FROM `contact` 
 		WHERE ( `dfrn-id` != '' OR (`issued-id` != '' AND `duplex` = 1)) 
-		AND `self` = 0 AND `blocked` = 0 AND `readonly` = 0 ORDER BY RAND()");
+		AND `self` = 0 AND `blocked` = 0 AND `readonly` = 0 AND `usehub` = 0 ORDER BY RAND()");
 
 	if(! count($contacts))
 		killme();
@@ -37,24 +37,24 @@
 
 			switch ($contact['priority']) {
 				case 5:
-					if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 month"))
+					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"))
+					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"))
+					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"))
+					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"))
+					if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 hour"))
 						$update = true;
 					break;
 			}
@@ -160,234 +160,9 @@
 		if(! strlen($xml))
 			continue;
 
-		$feed = new SimplePie();
-		$feed->set_raw_data($xml);
-		$feed->enable_order_by_date(false);
-		$feed->init();
-
-		// Check at the feed level for updated contact name and/or photo
-
-		$name_updated  = '';
-		$new_name = '';
-		$photo_timestamp = '';
-		$photo_url = '';
-
-		$rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, author);
-		if($rawtags) {
-			$elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
-			if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
-				$name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
-				$new_name = $elems['name'][0]['data'];
-			} 
-			if(($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
-				$photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
-				$photo_url = $elems['link'][0]['attribs']['']['href'];
-			}
-		}
-		if(! $photo_timestamp) {
-			$photo_rawupdate = $feed->get_feed_tags(NAMESPACE_DFRN,'icon-updated');
-			if($photo_rawupdate) {
-				$photo_timestamp = datetime_convert('UTC','UTC',$photo_rawupdate[0]['data']);
-				$photo_url = $feed->get_image_url();
-			}
-		}
-		if(($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
-
-			require_once("Photo.php");
-			$photo_failure = false;
-
-			$r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
-				intval($contact['id']),
-				intval($contact['uid'])
-			);
-			if(count($r)) {
-				$resource_id = $r[0]['resource-id'];
-				$img_str = fetch_url($photo_url,true);
-				$img = new Photo($img_str);
-				if($img) {
-					q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND contact-id` = %d AND `uid` = %d",
-						dbesc($resource_id),
-						intval($contact['id']),
-						intval($contact['uid'])
-					);
-
-					$img->scaleImageSquare(175);
-				
-					$hash = $resource_id;
-					$r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 4);
-					
-					$img->scaleImage(80);
-					$r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 5);
-					if($r)
-						q("UPDATE `contact` SET `avatar-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
-							dbesc(datetime_convert()),
-							intval($contact['uid']),
-							intval($contact['id'])
-						);
-				}
-			}
-		}
 
-		if(($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
-			q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
-				dbesc(notags(trim($new_name))),
-				dbesc(datetime_convert()),
-				intval($contact['uid']),
-				intval($contact['id'])
-			);
-		}
+		consume_feed($xml,$importer,$contact);
 
-		// Now process the feed
-		if($feed->get_item_quantity()) {		
-			foreach($feed->get_items() as $item) {
-
-				$deleted = false;
-
-				$rawdelete = $item->get_item_tags( NAMESPACE_TOMB, 'deleted-entry');
-				if(isset($rawdelete[0]['attribs']['']['ref'])) {
-					$uri = $rawthread[0]['attribs']['']['ref'];
-					$deleted = true;
-					if(isset($rawdelete[0]['attribs']['']['when'])) {
-						$when = $rawthread[0]['attribs']['']['when'];
-						$when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
-					}
-					else
-						$when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
-				}
-				if($deleted) {
-					$r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
-						dbesc($uri),
-						intval($importer['uid'])
-					);
-					if(count($r)) {
-						$item = $r[0];
-						if($item['uri'] == $item['parent-uri']) {
-							$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
-								`body` = '', `title` = ''
-								WHERE `parent-uri` = '%s' AND `uid` = %d",
-								dbesc($when),
-								dbesc(datetime_convert()),
-								dbesc($item['uri']),
-								intval($importer['uid'])
-							);
-						}
-						else {
-							$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
-								`body` = '', `title` = '' 
-								WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
-								dbesc($when),
-								dbesc(datetime_convert()),
-								dbesc($uri),
-								intval($importer['uid'])
-							);
-							if($item['last-child']) {
-								// ensure that last-child is set in case the comment that had it just got wiped.
-								$q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
-									dbesc(datetime_convert()),
-									dbesc($item['parent-uri']),
-									intval($item['uid'])
-								);
-								// who is the last child now? 
-								$r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d 
-									ORDER BY `edited` DESC LIMIT 1",
-										dbesc($item['parent-uri']),
-										intval($importer['uid'])
-								);
-								if(count($r)) {
-									q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
-										intval($r[0]['id'])
-									);
-								}
-							}	
-						}
-					}	
-					continue;
-				}
-
-
-				$is_reply = false;		
-				$item_id = $item->get_id();
-				$rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
-				if(isset($rawthread[0]['attribs']['']['ref'])) {
-					$is_reply = true;
-					$parent_uri = $rawthread[0]['attribs']['']['ref'];
-				}
-
-
-				if($is_reply) {
-	
-					// Have we seen it? If not, import it.
-	
-					$item_id = $item->get_id();
-	
-					$r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
-						dbesc($item_id),
-						intval($importer['uid'])
-					);
-					// FIXME update content if 'updated' changes
-					if(count($r)) {
-						$allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
-						if($allow && $allow[0]['data'] != $r[0]['last-child']) {
-							$r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
-								dbesc(datetime_convert()),
-								dbesc($parent_uri),
-								intval($importer['uid'])
-							);
-							$r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
-								intval($allow[0]['data']),
-								dbesc(datetime_convert()),
-								dbesc($item_id),
-								intval($importer['uid'])
-							);
-
-
-						}
-						continue;
-					}
-					$datarray = get_atom_elements($item);
-					$datarray['parent-uri'] = $parent_uri;
-					$datarray['uid'] = $importer['uid'];
-					$datarray['contact-id'] = $contact['id'];
-					if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
-						$datarray['type'] = 'activity';
-						$datarray['gravity'] = GRAVITY_LIKE;
-					}
-	
-					$r = item_store($datarray);
-					continue;
-				}
-
-				else {
-					// Head post of a conversation. Have we seen it? If not, import it.
-	
-					$item_id = $item->get_id();
-					$r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
-						dbesc($item_id),
-						intval($importer['uid'])
-					);
-					if(count($r)) {
-						$allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
-						if($allow && $allow[0]['data'] != $r[0]['last-child']) {
-							$r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
-								intval($allow[0]['data']),
-								dbesc(datetime_convert()),
-								dbesc($item_id),
-								intval($importer['uid'])
-							);
-						}
-						continue;
-					}
-
-					$datarray = get_atom_elements($item);
-					$datarray['parent-uri'] = $item_id;
-					$datarray['uid'] = $importer['uid'];
-					$datarray['contact-id'] = $contact['id'];
-					$r = item_store($datarray);
-					continue;
-	
-				}
-			}
-		}
 		$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 			dbesc(datetime_convert()),
 			intval($contact['id'])
diff --git a/mod/dfrn_confirm.php b/mod/dfrn_confirm.php
index 584358507..5808b6fec 100644
--- a/mod/dfrn_confirm.php
+++ b/mod/dfrn_confirm.php
@@ -239,8 +239,7 @@ function dfrn_confirm_post(&$a) {
 		$pubkey = openssl_pkey_get_details($res);
 		$public_key = $pubkey["key"];
 
-		$r = q("UPDATE `contact` SET `issued-pubkey` = '%s', `prvkey` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
-			dbesc($public_key),
+		$r = q("UPDATE `contact` SET `prvkey` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
 			dbesc($private_key),
 			intval($contact_id),
 			intval($uid) 
diff --git a/mod/pubsub.php b/mod/pubsub.php
new file mode 100644
index 000000000..3a3122d72
--- /dev/null
+++ b/mod/pubsub.php
@@ -0,0 +1,112 @@
+<?php
+
+function hub_return($valid,$body) {
+	
+	if($valid) {
+		header($_SERVER["SERVER_PROTOCOL"] . ' 200 ' . 'OK');
+		echo $body;
+		killme();
+	}
+	else {
+		header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . 'Not Found');
+		killme();
+	}
+
+	// NOTREACHED
+}
+
+// when receiving an XML feed, always return OK
+
+function hub_post_return() {
+	
+	header($_SERVER["SERVER_PROTOCOL"] . ' 200 ' . 'OK');
+	killme();
+
+}
+
+
+
+function pubsub_init(&$a) {
+
+	$nick       = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
+	$contact_id = (($a->argc > 2) ? intval($a->argv[2]) : 0);
+
+	if($_SERVER['REQUEST_METHOD'] === 'GET') {
+
+		$hub_mode = notags(trim($_GET['hub.mode']));
+		$hub_topic = notags(trim($_GET['hub.topic']));
+		$hub_challenge = notags(trim($_GET['hub.challenge']));
+		$hub_lease = notags(trim($_GET['hub.lease_seconds']));
+		$hub_verify = notags(trim($_GET['hub.verify_token']));
+
+		$subscribe = (($hub_mode === 'subscribe') ? 1 : 0);
+
+		$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1",
+			dbesc($nick)
+		);
+		if(! count($r))
+			hub_return(false, '');
+
+		$owner = $r[0];
+
+		$sql_extra = ((strlen($hub_verify)) ? sprintf(" AND `hub-verify` = '%s' ", dbesc($hub_verify)) : '');
+
+		$r = q("SELECT * FROM `contact` WHERE `poll` = '%s' AND `id` = %d AND `uid` = %d AND `blocked` = 0 $sql_extra LIMIT 1",
+			dbesc($hub_topic),
+			intval($contact_id),
+			intval($owner['uid'])
+		);
+		if(! count($r))
+			hub_return(false, '');
+
+		$contact = $r[0];
+
+		// We must initiate an unsubscribe request with a verify_token. 
+		// Don't allow outsiders to unsubscribe us.
+
+		if(($hub_mode === 'unsubscribe') && (! strlen($hub_verify))) 
+			hub_return(false, '');
+
+		$r = q("UPDATE `contact` SET `usehub` = %d WHERE `id` = %d LIMIT 1",
+			intval($subscribe),
+			intval($contact['id'])
+		);
+
+ 		hub_return(true, $hub_challenge);
+		
+	}
+}
+
+
+function pubsub_post(&$a) {
+
+	$xml = file_get_contents('php://input');
+
+	$nick       = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
+	$contact_id = (($a->argc > 2) ? intval($a->argv[2]) : 0);
+
+	$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1",
+		dbesc($nick)
+	);
+	if(! count($r))
+		hub_post_return();
+
+	$importer = $r[0];
+
+	$r = q("SELECT * FROM `contact` WHERE `usehub` = 1 AND `id` = %d AND `uid` = %d AND `blocked` = 0 LIMIT 1",
+		intval($contact_id),
+		intval($importer['uid'])
+	);
+	if(! count($r))
+		hub_post_return();
+
+	$contact = $r[0];
+
+	consume_feed($xml,$importer,$contact);
+
+	hub_post_return();;
+
+}
+
+
+
diff --git a/update.php b/update.php
index 1fe58486b..6b0bc770e 100644
--- a/update.php
+++ b/update.php
@@ -22,3 +22,11 @@ function update_1001() {
 function update_1002() {
 	q("ALTER TABLE `item` ADD `gravity` TINYINT( 1 ) NOT NULL DEFAULT '0' AFTER `wall` ");
 }
+
+function update_1003() {
+	q("ALTER TABLE `contact` DROP `issued-pubkey` , DROP `ret-id` , DROP `ret-pubkey` ");
+	q("ALTER TABLE `contact` ADD `usehub` TINYINT( 1 ) NOT NULL DEFAULT '0' AFTER `ret-aes`");
+	q("ALTER TABLE `contact` ADD `hub-verify` CHAR( 255 ) NOT NULL AFTER `usehub`");
+	q("ALTER TABLE `contact` ADD INDEX ( `uid` ) ,  ADD INDEX ( `self` ),  ADD INDEX ( `issued-id` ),  ADD INDEX ( `dfrn-id` )"); 
+	q("ALTER TABLE `contact` ADD INDEX ( `blocked` ),   ADD INDEX ( `readonly` )");
+}
\ No newline at end of file