From aefc6209a3d07d70835422e690f624c72075c410 Mon Sep 17 00:00:00 2001
From: Friendika <info@friendika.com>
Date: Fri, 12 Aug 2011 03:01:11 -0700
Subject: [PATCH] improved diaspora discovery

---
 include/Scrape.php   | 41 ++++++++++++++++++++++++++++++++++++-----
 include/diaspora.php | 33 +++++++++++++++++++++++++++++++++
 mod/receive.php      |  2 +-
 3 files changed, 70 insertions(+), 6 deletions(-)

diff --git a/include/Scrape.php b/include/Scrape.php
index ef5d7dcae..c4882243d 100644
--- a/include/Scrape.php
+++ b/include/Scrape.php
@@ -1,6 +1,7 @@
 <?php
 
 require_once('library/HTML5/Parser.php');
+require_once('include/crypto.php');
 
 if(! function_exists('scrape_dfrn')) {
 function scrape_dfrn($url) {
@@ -171,6 +172,8 @@ function scrape_vcard($url) {
 
 	// Pull out hCard profile elements
 
+	$largest_photo = 0;
+
 	$items = $dom->getElementsByTagName('*');
 	foreach($items as $item) {
 		if(attribute_contains($item->getAttribute('class'), 'vcard')) {
@@ -179,8 +182,13 @@ function scrape_vcard($url) {
 				if(attribute_contains($x->getAttribute('class'),'fn'))
 					$ret['fn'] = $x->textContent;
 				if((attribute_contains($x->getAttribute('class'),'photo'))
-					|| (attribute_contains($x->getAttribute('class'),'avatar')))
-					$ret['photo'] = $x->getAttribute('src');
+					|| (attribute_contains($x->getAttribute('class'),'avatar'))) {
+					$size = intval($x->getAttribute('width'));
+					if(($size > $largest_photo) || (! $largest_photo)) {
+						$ret['photo'] = $x->getAttribute('src');
+						$largest_photo = $size;
+					}
+				}
 				if((attribute_contains($x->getAttribute('class'),'nickname'))
 					|| (attribute_contains($x->getAttribute('class'),'uid')))
 					$ret['nick'] = $x->textContent;
@@ -289,7 +297,10 @@ function probe_url($url) {
 	if(! $url)
 		return $result;
 
-	$diaspora = false;	
+	$diaspora = false;
+	$diaspora_base = '';
+	$diaspora_guid = '';	
+	$diaspora_key = '';
 	$email_conversant = false;
 
 	$twitter = ((strpos($url,'twitter.com') !== false) ? true : false);
@@ -320,8 +331,19 @@ function probe_url($url) {
 					$hcard = unamp($link['@attributes']['href']);
 				if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
 					$profile = unamp($link['@attributes']['href']);
-				if($link['@attributes']['rel'] === 'http://joindiaspora.com/seed_location')
+				if($link['@attributes']['rel'] === 'http://joindiaspora.com/seed_location') {
+					$diaspora_base = unamp($link['@attributes']['href']);
 					$diaspora = true;
+				}
+				if($link['@attributes']['rel'] === 'http://joindiaspora.com/guid') {
+					$diaspora_guid = unamp($link['@attributes']['href']);
+					$diaspora = true;
+				}
+				if($link['@attributes']['rel'] === 'diaspora-public-key') {
+					$diaspora_key = base64_decode(unamp($link['@attributes']['href']));
+					$pubkey = rsatopem($diaspora_key);
+					$diaspora = true;
+				}
 			}
 
 			// Status.Net can have more than one profile URL. We need to match the profile URL
@@ -419,8 +441,17 @@ function probe_url($url) {
 		}
 	}
 
+	if($diaspora && $diaspora_base && $diaspora_guid) {
+		$notify = $diaspora_base . 'receive/post/' . $diaspora_guid;
+		if(strpos($url,'@'))
+			$addr = str_replace('acct:', '', $url);
+	}			
+
 	if($network !== NETWORK_ZOT && $network !== NETWORK_DFRN && $network !== NETWORK_MAIL) {
-		$network  = NETWORK_OSTATUS;
+		if($diaspora)
+			$network = NETWORK_DIASPORA;
+		else
+			$network  = NETWORK_OSTATUS;
 		$priority = 0;
 
 		if($hcard) {
diff --git a/include/diaspora.php b/include/diaspora.php
index f799b6a49..d4e9c530c 100644
--- a/include/diaspora.php
+++ b/include/diaspora.php
@@ -244,6 +244,39 @@ function diaspora_decode($importer,$xml) {
 
 function diaspora_request($importer,$contact,$xml) {
 
+	$sender_handle = $xml->sender_handle;
+	$recipient_handle = $xml->recipient_handle;
+
+	if(! $sender_handle || ! $recipient_handle)
+		return;
+	
+	if($contact) {
+		q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d AND `uid` = %d LIMIT 1",
+			intval(CONTACT_IS_FRIEND),
+			intval($contact['id']),
+			intval($importer['uid'])
+		);
+		// send notification
+		return;
+	}
+	
+	require_once('include/Scrape.php');
+	$ret = probe_url($sender_handle);
+	$errors = false;
+	if((! count($ret)) || ($ret['network'] != NETWORK_DIASPORA)) {
+		logger('diaspora_request: Cannot resolve diaspora handle ' . $sender_handle . ' for ' . $recipient_handle);
+		$errors = true;
+	}
+
+
+	if($errors)
+		return;
+
+
+
+
+
+
 }
 
 function diaspora_post($importer,$contact,$xml) {
diff --git a/mod/receive.php b/mod/receive.php
index 1dfbe59bd..72d528093 100644
--- a/mod/receive.php
+++ b/mod/receive.php
@@ -71,7 +71,7 @@ function receive_post(&$a) {
 
 	$contact = ((count($r)) ? $r[0] : null);
 
-
+	logger('diaspora msg: ' . $msg, LOGGER_DATA); 
 
 	if($xmlbase->request) {
 		diaspora_request($importer,$contact,$xmlbase->request);