Merge branch 'testing' of gitorious.org:statusnet/mainline into testing

* 'testing' of gitorious.org:statusnet/mainline:
  OStatus: pull best-sized avatar image (96x96 if found, otherwise largest, otherwise if none labeled takes the first)
  info about discovery in Ostatus_profile::ensureWebfinger()
  cache Web responses in Webfinger library

lib/activity.php

@@ -360,6 +360,25 @@ class ActivityUtils
         return null;
     }
 
+    static function getLinks(DOMNode $element, $rel, $type=null)
+    {
+        $links = $element->getElementsByTagnameNS(self::ATOM, self::LINK);
+        $out = array();
+
+        foreach ($links as $link) {
+
+            $linkRel = $link->getAttribute(self::REL);
+            $linkType = $link->getAttribute(self::TYPE);
+
+            if ($linkRel == $rel &&
+                (is_null($type) || $linkType == $type)) {
+                $out[] = $link;
+            }
+        }
+
+        return $out;
+    }
+
     /**
      * Gets the first child element with the given tag
      *
@@ -472,6 +491,24 @@ class AvatarLink
     public $type;
     public $size;
     public $width;
+    public $height;
+
+    function __construct($element=null)
+    {
+        if ($element) {
+            // @fixme use correct namespaces
+            $this->url = $element->getAttribute('href');
+            $this->type = $element->getAttribute('type');
+            $width = $element->getAttribute('media:width');
+            if ($width != null) {
+                $this->width = intval($width);
+            }
+            $height = $element->getAttribute('media:height');
+            if ($height != null) {
+                $this->height = intval($height);
+            }
+        }
+    }
 
     static function fromAvatar($avatar)
     {
@@ -640,8 +677,10 @@ class ActivityObject
         if ($this->type == self::PERSON || $this->type == self::GROUP) {
             $this->displayName = $this->title;
 
-            // @fixme we may have multiple avatars with different resolutions specified
-            $this->avatar = ActivityUtils::getLink($element, 'avatar');
+            $avatars = ActivityUtils::getLinks($element, 'avatar');
+            foreach ($avatars as $link) {
+                $this->avatarLinks[] = new AvatarLink($link);
+            }
 
             $this->poco = new PoCo($element);
         }

plugins/OStatus/classes/Ostatus_profile.php

@@ -818,8 +818,20 @@ class Ostatus_profile extends Memcached_DataObject
 
     protected static function getActivityObjectAvatar($object, $hints=array())
     {
-        if ($object->avatar) {
-            return $object->avatar;
+        if ($object->avatarLinks) {
+            $best = false;
+            // Take the exact-size avatar, or the largest avatar, or the first avatar if all sizeless
+            foreach ($object->avatarLinks as $avatar) {
+                if ($avatar->width == AVATAR_PROFILE_SIZE && $avatar->height = AVATAR_PROFILE_SIZE) {
+                    // Exact match!
+                    $best = $avatar;
+                    break;
+                }
+                if (!$best || $avatar->width > $best->width) {
+                    $best = $avatar;
+                }
+            }
+            return $best->url;
         } else if (array_key_exists('avatar', $hints)) {
             return $hints['avatar'];
         }
@@ -1313,6 +1325,7 @@ class Ostatus_profile extends Memcached_DataObject
 
         if (isset($feedUrl)) {
             try {
+                common_log(LOG_INFO, "Discovery on acct:$addr with feed URL $feedUrl");
                 $oprofile = self::ensureProfile($feedUrl, $hints);
                 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
                 return $oprofile;
@@ -1326,6 +1339,7 @@ class Ostatus_profile extends Memcached_DataObject
 
         if (isset($profileUrl)) {
             try {
+                common_log(LOG_INFO, "Discovery on acct:$addr with profile URL $profileUrl");
                 $oprofile = self::ensureProfile($profileUrl, $hints);
                 self::cacheSet(sprintf('ostatus_profile:webfinger:%s', $addr), $oprofile->uri);
                 return $oprofile;

plugins/OStatus/lib/webfinger.php

@@ -81,11 +81,14 @@ class Webfinger
     function getServiceLinks($domain)
     {
         $url = 'http://'. $domain .'/.well-known/host-meta';
+
         $content = $this->fetchURL($url);
+
         if (empty($content)) {
             common_log(LOG_DEBUG, 'Error fetching host-meta');
             return false;
         }
+
         $result = XRD::parse($content);
 
         // Ensure that the host == domain (spec may include signing later)
@@ -119,6 +122,11 @@ class Webfinger
     function fetchURL($url)
     {
         try {
+            $c = Cache::instance();
+            $content = $c->get('webfinger:url:'.$url);
+            if ($content !== false) {
+                return $content;
+            }
             $client = new HTTPClient();
             $response = $client->get($url);
         } catch (HTTP_Request2_Exception $e) {
@@ -129,7 +137,11 @@ class Webfinger
             return false;
         }
 
-        return $response->getBody();
+        $body = $response->getBody();
+
+        $c->set('webfinger:url:'.$url, $body);
+
+        return $body;
     }
 
     function applyTemplate($template, $id)