Load photos of LDAP-based address books in listing

Fixes #3942

UI/WebServerResources/js/Common/Resource.service.js

@@ -56,6 +56,21 @@
     return new Resource(this._http, this._q, '/' + path.join('/'), this._activeUser);
   };
 
+  /**
+   * @function path
+   * @memberof Resource.prototype
+   * @desc Create a URL of the resource context with any number of additional segments
+   * @return an absolute URL
+   */
+  Resource.prototype.path = function() {
+    var path = [this._path];
+
+    if (arguments.length > 0)
+      Array.prototype.push.apply(path, Array.prototype.slice.call(arguments));
+
+    return path.join('/');
+  };
+
   /**
    * @function fetch
    * @memberof Resource.prototype

UI/WebServerResources/js/Contacts/Card.service.js

@@ -152,6 +152,8 @@
       Card.$Preferences.avatar(this.$$email, 32, {no_404: true}).then(function(url) {
         _this.$$image = url;
       });
+    if (this.hasphoto)
+      this.photoURL = Card.$$resource.path(this.pid, this.id, 'photo');
     if (this.isgroup)
       this.c_component = 'vlist';
     this.$avatarIcon = this.$isList()? 'group' : 'person';