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diff --git a/config/config.exs b/config/config.exs
--- a/config/config.exs
+++ b/config/config.exs
@@ -30,4 +30,9 @@
# import_config "#{Mix.env}.exs"
config :kolab_wopi,
+ host_info: [
+ endpoint_desc: "Kolab Systems, Zurich",
+ machine_name: to_string(Node.self()),
+ version: "kolab_wopi_v" <> to_string(Keyword.get(Mix.Project.get!().project(), :version)) #:application.get_key(:kolab_wopi, :description))
+ ],
chwala_base_url: "http://localhost/chwala/api/"
diff --git a/lib/kolab_wopi/api.ex b/lib/kolab_wopi/api.ex
--- a/lib/kolab_wopi/api.ex
+++ b/lib/kolab_wopi/api.ex
@@ -11,6 +11,7 @@
require Logger
plug Plug.Logger
+ plug :wopi_headers
plug :access_token_handler
plug :match
plug :dispatch
@@ -34,6 +35,19 @@
@doc """
+ Plug that adds the standard WOPI response headers
+
+ @see https://wopirest.readthedocs.io/en/latest/common_headers.html
+ """
+ def wopi_headers(conn, _opts) do
+ host_info = Application.get_env(:kolab_wopi, :host_info)
+ conn
+ |> put_resp_header("X-WOPI-HostEndpoint", Keyword.get(host_info, :endpoint_desc))
+ |> put_resp_header("X-WOPI-MachineName", Keyword.get(host_info, :machine_name))
+ |> put_resp_header("X-WOPI-ServerVersion", Keyword.get(host_info, :version))
+ end
+
+ @doc """
Plug that fetches query parameters and validates the access_token.
The access_token parameter is required in every WOPI request.
@@ -63,13 +77,20 @@
It supports Chwala status codes.
"""
- def send_status_resp(conn, code, reason \\ nil)
+ def send_status_resp(conn, code, reason \\ "Unknown error")
def send_status_resp(conn, 403, reason) do
# Chwala uses only 200, 403, 500, 501, 503
send_status_resp(conn, 401, reason)
end
+ def send_status_resp(conn, code, reason) when code >= 500 and code < 600 do
+ # TODO: log status reason?
+ conn
+ |> put_resp_header("X-WOPI-ServerError", reason)
+ |> send_resp(code, "")
+ end
+
def send_status_resp(conn, code, _reason) do
# TODO: log status reason?
send_resp(conn, code, "")

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