|  | // Copyright (c) 2021 The Chromium Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | #include "quic/test_tools/quic_test_backend.h" | 
|  |  | 
|  | #include <cstring> | 
|  | #include <memory> | 
|  |  | 
|  | #include "absl/strings/string_view.h" | 
|  | #include "quic/core/quic_buffer_allocator.h" | 
|  | #include "quic/core/quic_simple_buffer_allocator.h" | 
|  | #include "quic/core/web_transport_interface.h" | 
|  | #include "quic/platform/api/quic_mem_slice.h" | 
|  | #include "quic/tools/web_transport_test_visitors.h" | 
|  |  | 
|  | namespace quic { | 
|  | namespace test { | 
|  |  | 
|  | QuicSimpleServerBackend::WebTransportResponse | 
|  | QuicTestBackend::ProcessWebTransportRequest( | 
|  | const spdy::Http2HeaderBlock& request_headers, | 
|  | WebTransportSession* session) { | 
|  | if (!SupportsWebTransport()) { | 
|  | return QuicSimpleServerBackend::ProcessWebTransportRequest(request_headers, | 
|  | session); | 
|  | } | 
|  |  | 
|  | auto path_it = request_headers.find(":path"); | 
|  | if (path_it == request_headers.end()) { | 
|  | WebTransportResponse response; | 
|  | response.response_headers[":status"] = "400"; | 
|  | return response; | 
|  | } | 
|  | absl::string_view path = path_it->second; | 
|  | if (path == "/echo") { | 
|  | WebTransportResponse response; | 
|  | response.response_headers[":status"] = "200"; | 
|  | response.visitor = | 
|  | std::make_unique<EchoWebTransportSessionVisitor>(session); | 
|  | return response; | 
|  | } | 
|  |  | 
|  | WebTransportResponse response; | 
|  | response.response_headers[":status"] = "404"; | 
|  | return response; | 
|  | } | 
|  |  | 
|  | }  // namespace test | 
|  | }  // namespace quic |