refactor: behavior login/2 use all http request

apps/emqx_dashboard_sso/src/emqx_dashboard_sso.erl

@@ -39,7 +39,9 @@
     {ok, NewState :: state()} | {error, Reason :: term()}.
 -callback destroy(State :: state()) -> ok.
 -callback login(request(), State :: state()) ->
-    {ok, dashboard_user_role(), Token :: binary()} | {redirect, fun()} | {error, Reason :: term()}.
+    {ok, dashboard_user_role(), Token :: binary()}
+    | {redirect, tuple()}
+    | {error, Reason :: term()}.
 
 %%------------------------------------------------------------------------------
 %% Callback Interface

apps/emqx_dashboard_sso/src/emqx_dashboard_sso_api.erl

@@ -151,23 +151,22 @@ running(get, _Request) ->
             maps:values(SSO)
         )}.
 
-login(post, #{bindings := #{backend := Backend}, body := Sign, headers := Headers}) ->
+login(post, #{bindings := #{backend := Backend}} = Request) ->
     case emqx_dashboard_sso_manager:lookup_state(Backend) of
         undefined ->
             {404, #{code => ?BACKEND_NOT_FOUND, message => <<"Backend not found">>}};
         State ->
-            Provider = provider(Backend),
-            case emqx_dashboard_sso:login(Provider, Sign, State) of
+            case emqx_dashboard_sso:login(provider(Backend), Request, State) of
                 {ok, Role, Token} ->
-                    ?SLOG(info, #{msg => "dashboard_sso_login_successful", request => Sign}),
+                    ?SLOG(info, #{msg => "dashboard_sso_login_successful", request => Request}),
                     {200, login_reply(Role, Token)};
-                {redirect, RedirectFun} ->
-                    ?SLOG(info, #{msg => "dashboard_sso_login_redirect", request => Sign}),
-                    RedirectFun(Headers);
+                {redirect, Redirect} ->
+                    ?SLOG(info, #{msg => "dashboard_sso_login_redirect", request => Request}),
+                    Redirect;
                 {error, Reason} ->
                     ?SLOG(info, #{
                         msg => "dashboard_sso_login_failed",
-                        request => Sign,
+                        request => Request,
                         reason => Reason
                     }),
                     {401, #{code => ?BAD_USERNAME_OR_PWD, message => <<"Auth failed">>}}

apps/emqx_dashboard_sso/src/emqx_dashboard_sso_ldap.erl

@@ -121,7 +121,7 @@ adjust_ldap_field(Any) ->
     Any.
 
 login(
-    #{<<"username">> := Username} = Req,
+    #{body := #{<<"username">> := Username} = Sign} = _Req,
     #{
         query_timeout := Timeout,
         resource_id := ResourceId
@@ -130,7 +130,7 @@ login(
     case
         emqx_resource:simple_sync_query(
             ResourceId,
-            {query, Req, [], Timeout}
+            {query, Sign, [], Timeout}
         )
     of
         {ok, []} ->
@@ -139,7 +139,7 @@ login(
             case
                 emqx_resource:simple_sync_query(
                     ResourceId,
-                    {bind, Req}
+                    {bind, Sign}
                 )
             of
                 ok ->

apps/emqx_dashboard_sso/src/emqx_dashboard_sso_saml.erl

@@ -134,12 +134,14 @@ update(_Config0, State) ->
 destroy(_State) ->
     ok.
 
-login(_Req, #{sp := SP, idp_meta := #esaml_idp_metadata{login_location = IDP}} = _State) ->
+login(
+    #{headers := Headers} = _Req,
+    #{sp := SP, idp_meta := #esaml_idp_metadata{login_location = IDP}} = _State
+) ->
     SignedXml = esaml_sp:generate_authn_request(IDP, SP),
     Target = esaml_binding:encode_http_redirect(IDP, SignedXml, <<>>),
-    %% TODO: _Req acutally is HTTP request body, not fully request
-    RedirectFun = fun(Headers) ->
-        RespHeaders = #{<<"Cache-Control">> => <<"no-cache">>, <<"Pragma">> => <<"no-cache">>},
+    RespHeaders = #{<<"Cache-Control">> => <<"no-cache">>, <<"Pragma">> => <<"no-cache">>},
+    Redirect =
         case is_msie(Headers) of
             true ->
                 Html = esaml_binding:encode_http_post(IDP, SignedXml, <<>>),
@@ -147,9 +149,8 @@ login(_Req, #{sp := SP, idp_meta := #esaml_idp_metadata{login_location = IDP}} =
             false ->
                 RespHeaders1 = RespHeaders#{<<"Location">> => Target},
                 {302, RespHeaders1, <<"Redirecting...">>}
-        end
-    end,
-    {redirect, RedirectFun}.
+        end,
+    {redirect, Redirect}.
 
 callback(_Req = #{body := Body}, #{sp := SP} = _State) ->
     case do_validate_assertion(SP, fun esaml_util:check_dupe_ets/2, Body) of

apps/emqx_dashboard_sso/src/emqx_dashboard_sso_saml_api.erl

@@ -87,7 +87,7 @@ sp_saml_metadata(get, _Req) ->
         #{sp := SP} = _State ->
             SignedXml = esaml_sp:generate_metadata(SP),
             Metadata = xmerl:export([SignedXml], xmerl_xml),
-            {200, [{<<"Content-Type">>, <<"text/xml">>}], Metadata}
+            {200, #{<<"Content-Type">> => <<"text/xml">>}, Metadata}
     end.
 
 sp_saml_callback(post, Req) ->