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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/loader/cached_navigation_url_loader.h"
#include "content/browser/loader/navigation_early_hints_manager.h"
#include "content/browser/loader/navigation_url_loader_delegate.h"
#include "content/browser/loader/navigation_url_loader_impl.h"
#include "content/browser/navigation_subresource_loader_params.h"
#include "content/browser/renderer_host/navigation_request_info.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/global_request_id.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "services/network/public/mojom/parsed_headers.mojom.h"
namespace content {
CachedNavigationURLLoader::CachedNavigationURLLoader(
LoaderType loader_type,
std::unique_ptr<NavigationRequestInfo> request_info,
NavigationURLLoaderDelegate* delegate,
network::mojom::URLResponseHeadPtr cached_response_head)
: loader_type_(loader_type),
request_info_(std::move(request_info)),
delegate_(delegate),
cached_response_head_(std::move(cached_response_head)) {}
void CachedNavigationURLLoader::OnResponseStarted() {
GlobalRequestID global_id = GlobalRequestID::MakeBrowserInitiated();
DCHECK(cached_response_head_);
delegate_->OnResponseStarted(
/*url_loader_client_endpoints=*/nullptr, std::move(cached_response_head_),
/*response_body=*/mojo::ScopedDataPipeConsumerHandle(), global_id,
/*is_download=*/false,
request_info_->isolation_info.network_anonymization_key(),
SubresourceLoaderParams(),
/*early_hints=*/{});
}
CachedNavigationURLLoader::~CachedNavigationURLLoader() {}
// static
std::unique_ptr<NavigationURLLoader> CachedNavigationURLLoader::Create(
LoaderType loader_type,
std::unique_ptr<NavigationRequestInfo> request_info,
NavigationURLLoaderDelegate* delegate,
network::mojom::URLResponseHeadPtr cached_response_head) {
return std::make_unique<CachedNavigationURLLoader>(
loader_type, std::move(request_info), delegate,
std::move(cached_response_head));
}
void CachedNavigationURLLoader::Start() {
// Respond with a fake response.
switch (loader_type_) {
case LoaderType::kRegular:
NOTREACHED();
case LoaderType::kNoopForBackForwardCache:
// We use PostTask here to mimic the flow of a normal navigation.
//
// Normal navigations never call OnResponseStarted on the same message
// loop iteration that the NavigationURLLoader is created, because they
// have to make a network request.
//
// TODO(crbug.com/40188852): Remove this post task and
// synchronously run the loader like kNoopForPrerender.
GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&CachedNavigationURLLoader::OnResponseStarted,
weak_factory_.GetWeakPtr()));
break;
case LoaderType::kNoopForPrerender:
// Call OnResponseStarted() synchronously. Prerendered page activation
// synchronously runs so that it doesn't have to worry about cases where
// cancellation is requested during page activation.
OnResponseStarted();
break;
}
}
void CachedNavigationURLLoader::FollowRedirect(
const std::vector<std::string>& removed_headers,
const net::HttpRequestHeaders& modified_headers,
const net::HttpRequestHeaders& modified_cors_exempt_headers) {
NOTREACHED();
}
bool CachedNavigationURLLoader::SetNavigationTimeout(base::TimeDelta timeout) {
// `false` here means that no timeout was started.
return false;
}
void CachedNavigationURLLoader::CancelNavigationTimeout() {
NOTREACHED();
}
} // namespace content
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