[api] return avatar url when search user

seahub/api2/views.py

@@ -361,16 +361,23 @@ class SearchUser(APIView):
         if is_valid_username(q) and q not in search_result:
             search_result.insert(0, q)
 
-        formated_result = format_user_result(search_result)[:10]
+        try:
+            size = int(request.GET.get('avatar_size', 32))
+        except ValueError:
+            size = 32
+
+        formated_result = format_user_result(search_result, size)[:10]
         return HttpResponse(json.dumps({"users": formated_result}), status=200,
                             content_type=json_content_type)
 
-def format_user_result(users):
+def format_user_result(users, size):
     results = []
     for email in users:
+        url, is_default, date_uploaded = api_avatar_url(email, size)
         results.append({
             "email": email,
-            "avatar": avatar(email, 32),
+            "avatar": avatar(email, size),
+            "avatar_url": url,
             "name": email2nickname(email),
         })
     return results