Workaround for elixir-sentry default_body_scrubber bug

web/router.ex

@@ -1,7 +1,23 @@
 defmodule CodeCorps.Router do
   use CodeCorps.Web, :router
   use Plug.ErrorHandler
-  use Sentry.Plug
+  use Sentry.Plug, body_scrubber: &scrub_params/1
+
+  # elixir-sentry 2.0.1 has a bug in the default_body_scrubber
+  # this deals with the bug and should be removed once the bug is fixex
+  def scrub_params(conn) do
+    conn.params
+    |> Enum.map(fn({key, value}) ->
+      value = cond do
+        Enum.member?(["password"], key) -> "*********"
+        String.valid?(value) && Regex.match?(~r/^(?:\d[ -]*?){13,16}$/, value) -> "*********"
+        true -> value
+      end
+
+      {key, value}
+    end)
+    |> Enum.into(%{})
+  end
 
   pipeline :browser do
     plug :accepts, ["html"]