+ /**
+ * Fetch the default avatar for the given contact and size
+ *
+ * @param array $contact contact array
+ * @param string $size Size of the avatar picture
+ * @return void
+ */
+ public static function getDefaultAvatar(array $contact, string $size)
+ {
+ switch ($size) {
+ case Proxy::SIZE_MICRO:
+ $avatar['size'] = 48;
+ $default = self::DEFAULT_AVATAR_MICRO;
+ break;
+
+ case Proxy::SIZE_THUMB:
+ $avatar['size'] = 80;
+ $default = self::DEFAULT_AVATAR_THUMB;
+ break;
+
+ case Proxy::SIZE_SMALL:
+ default:
+ $avatar['size'] = 300;
+ $default = self::DEFAULT_AVATAR_PHOTO;
+ break;
+ }
+
+ if (!DI::config()->get('system', 'remote_avatar_lookup')) {
+ return DI::baseUrl() . $default;
+ }
+
+ if (!empty($contact['xmpp'])) {
+ $avatar['email'] = $contact['xmpp'];
+ } elseif (!empty($contact['addr'])) {
+ $avatar['email'] = $contact['addr'];
+ } elseif (!empty($contact['url'])) {
+ $avatar['email'] = $contact['url'];
+ } else {
+ return DI::baseUrl() . $default;
+ }
+
+ $avatar['url'] = '';
+ $avatar['success'] = false;
+
+ Hook::callAll('avatar_lookup', $avatar);
+
+ if ($avatar['success'] && !empty($avatar['url'])) {
+ return $avatar['url'];
+ }
+
+ return DI::baseUrl() . $default;
+ }
+