Merge add8c90 into 3505562

Author: StekPerepolnen

ydb/mvp/oidc_proxy/oidc_session_create.h

@@ -151,8 +151,7 @@ class THandlerSessionCreate : public NActors::TActorBootstrapped<THandlerSession
             httpRequest->Set<&NHttp::THttpRequest::Body>(body);
             ctx.Send(HttpProxyId, new NHttp::TEvHttpProxy::TEvHttpOutgoingRequest(httpRequest));
         } else {
-            ResponseHeaders.Set("Content-Type", "text/plain");
-            NHttp::THttpOutgoingResponsePtr response = Request->CreateResponse("400", "Bad Request", ResponseHeaders, "Parameters state and code are invalid");
+            NHttp::THttpOutgoingResponsePtr response = GetHttpOutgoingResponsePtr(TStringBuf(), Request, Settings, ResponseHeaders, IsAjaxRequest);
             ctx.Send(Sender, new NHttp::TEvHttpProxy::TEvHttpOutgoingResponse(response));
             TBase::Die(ctx);
             return;

ydb/mvp/oidc_proxy/openid_connect.cpp

@@ -30,10 +30,14 @@ TString CreateRedirectUrl(const TRedirectUrlParameters& parameters) {
     TStringBuilder locationHeaderValue;
     TStringBuf authUrl = "/oauth/authorize";
     const auto& eventDetails = parameters.SessionServerCheckDetails;
-    size_t posAuthUrl = eventDetails.find(authUrl);
-    if (posAuthUrl != TStringBuf::npos) {
-        size_t pos = eventDetails.rfind("https://", posAuthUrl);
-        locationHeaderValue << eventDetails.substr(pos, posAuthUrl - pos);
+    if (eventDetails) {
+        size_t posAuthUrl = eventDetails.find(authUrl);
+        if (posAuthUrl != TStringBuf::npos) {
+            size_t pos = eventDetails.rfind("https://", posAuthUrl);
+            locationHeaderValue << eventDetails.substr(pos, posAuthUrl - pos);
+        } else {
+            locationHeaderValue << parameters.OidcSettings.AuthorizationServerAddress;
+        }
     } else {
         locationHeaderValue << parameters.OidcSettings.AuthorizationServerAddress;
     }