From 0d2650b29b92943a1570896491865c12fd28fda8 Mon Sep 17 00:00:00 2001
From: Mike Macgirvin <mike@macgirvin.com>
Date: Thu, 30 Sep 2010 21:38:45 -0700
Subject: [PATCH] the rest of pubsubhubbub except for the UI that actually
 turns it on

---
 include/items.php    | 41 ++++++++++++++++++++++++++++++++++++++++-
 include/notifier.php |  2 +-
 include/poller.php   |  8 +++++++-
 mod/pubsub.php       |  3 ++-
 4 files changed, 50 insertions(+), 4 deletions(-)

diff --git a/include/items.php b/include/items.php
index 688ef244a..d726e961c 100644
--- a/include/items.php
+++ b/include/items.php
@@ -577,7 +577,7 @@ function dfrn_deliver($contact,$atom,$debugging = false) {
 }
 
 
-function consume_feed($xml,$importer,$contact) {
+function consume_feed($xml,$importer,$contact, &$hub) {
 
 	require_once('simplepie/simplepie.inc');
 
@@ -593,6 +593,12 @@ function consume_feed($xml,$importer,$contact) {
 	$photo_timestamp = '';
 	$photo_url = '';
 
+
+	$foundhub = $feed->get_link(0,'hub');
+
+	if(strlen($foundhub))
+		$hub = $foundhub;
+
 	$rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
 	if($rawtags) {
 		$elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
@@ -808,4 +814,37 @@ function consume_feed($xml,$importer,$contact) {
 		}
 	}
 
+}
+
+
+function subscribe_to_hub($url,$importer,$contact) {
+
+	if(is_array($importer)) {
+		$r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
+			intval($importer['uid'])
+		);
+	}
+	if(! count($r))
+		return;
+
+	$params = array();
+
+	$push_url = get_config('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
+
+	$verify_token = random_string();
+
+	$params['hub.mode'] = 'subscribe';
+	$params['hub.callback'] = urlencode($push_url);
+	$params['hub.topic'] = urlencode($contact['poll']);
+	$params['hub.verify'] = 'async';
+	$params['hub.verify_token'] = $verify_token;
+
+	$r = q("UPDATE `contact` SET `hub-verify` = '%s' WHERE `id` = %d LIMIT 1",
+		dbesc($verify_token),
+		intval($contact['id'])
+	);
+
+	post_url($url,$params);			
+	return;
+
 }
\ No newline at end of file
diff --git a/include/notifier.php b/include/notifier.php
index c339d2fb3..b8b07ab58 100644
--- a/include/notifier.php
+++ b/include/notifier.php
@@ -303,7 +303,7 @@
 	}
 
 	if((strlen($hub)) && ($cmd !== 'mail') && (followup == false)) {
-		$params = array('hub.mode' => 'publish', 'hub.url' => $a->get_baseurl() . '/dfrn_poll/' . $owner['nickname'] );
+		$params = array('hub.mode' => 'publish', 'hub.url' => urlencode($a->get_baseurl() . '/dfrn_poll/' . $owner['nickname'] ));
 		post_url($hub,$params);
 	}
 
diff --git a/include/poller.php b/include/poller.php
index b9ef0d93a..fc77946f9 100644
--- a/include/poller.php
+++ b/include/poller.php
@@ -161,7 +161,13 @@
 			continue;
 
 
-		consume_feed($xml,$importer,$contact);
+		consume_feed($xml,$importer,$contact,$hub);
+		
+
+		if($contact['usehub'] && strlen($hub)) {
+			subscribe_to_hub($hub,$importer,$contact);
+		}
+
 
 		$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 			dbesc(datetime_convert()),
diff --git a/mod/pubsub.php b/mod/pubsub.php
index 1e6add935..fa092049f 100644
--- a/mod/pubsub.php
+++ b/mod/pubsub.php
@@ -102,7 +102,8 @@ function pubsub_post(&$a) {
 
 	$contact = $r[0];
 
-	consume_feed($xml,$importer,$contact);
+	$feedhub = '';
+	consume_feed($xml,$importer,$contact,$feedhub);
 
 	hub_post_return();