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// Copyright (c) 2012 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 "content/browser/loader/resource_message_filter.h"
#include "base/logging.h"
#include "content/browser/appcache/chrome_appcache_service.h"
#include "content/browser/blob_storage/chrome_blob_storage_context.h"
#include "content/browser/loader/resource_dispatcher_host_impl.h"
#include "content/browser/loader/resource_requester_info.h"
#include "content/browser/loader/url_loader_factory_impl.h"
#include "content/browser/service_worker/service_worker_context_wrapper.h"
#include "content/common/resource_messages.h"
#include "content/public/browser/resource_context.h"
#include "storage/browser/fileapi/file_system_context.h"
namespace content {
ResourceMessageFilter::ResourceMessageFilter(
int child_id,
ChromeAppCacheService* appcache_service,
ChromeBlobStorageContext* blob_storage_context,
storage::FileSystemContext* file_system_context,
ServiceWorkerContextWrapper* service_worker_context,
const GetContextsCallback& get_contexts_callback,
const scoped_refptr<base::SingleThreadTaskRunner>& io_thread_runner)
: BrowserMessageFilter(ResourceMsgStart),
BrowserAssociatedInterface<mojom::URLLoaderFactory>(this, this),
is_channel_closed_(false),
requester_info_(
ResourceRequesterInfo::CreateForRenderer(child_id,
appcache_service,
blob_storage_context,
file_system_context,
service_worker_context,
get_contexts_callback)),
io_thread_task_runner_(io_thread_runner),
weak_ptr_factory_(this) {}
ResourceMessageFilter::~ResourceMessageFilter() {
DCHECK(io_thread_task_runner_->BelongsToCurrentThread());
DCHECK(is_channel_closed_);
DCHECK(!weak_ptr_factory_.HasWeakPtrs());
}
void ResourceMessageFilter::OnFilterAdded(IPC::Channel*) {
DCHECK(io_thread_task_runner_->BelongsToCurrentThread());
InitializeOnIOThread();
}
void ResourceMessageFilter::OnChannelClosing() {
DCHECK(io_thread_task_runner_->BelongsToCurrentThread());
// Unhook us from all pending network requests so they don't get sent to a
// deleted object.
ResourceDispatcherHostImpl::Get()->CancelRequestsForProcess(
requester_info_->child_id());
weak_ptr_factory_.InvalidateWeakPtrs();
is_channel_closed_ = true;
}
bool ResourceMessageFilter::OnMessageReceived(const IPC::Message& message) {
DCHECK(io_thread_task_runner_->BelongsToCurrentThread());
// Check if InitializeOnIOThread() has been called.
DCHECK_EQ(this, requester_info_->filter());
return ResourceDispatcherHostImpl::Get()->OnMessageReceived(
message, requester_info_.get());
}
void ResourceMessageFilter::OnDestruct() const {
// Destroy the filter on the IO thread since that's where its weak pointers
// are being used.
if (io_thread_task_runner_->BelongsToCurrentThread()) {
delete this;
} else {
io_thread_task_runner_->DeleteSoon(FROM_HERE, this);
}
}
base::WeakPtr<ResourceMessageFilter> ResourceMessageFilter::GetWeakPtr() {
DCHECK(io_thread_task_runner_->BelongsToCurrentThread());
return is_channel_closed_ ? nullptr : weak_ptr_factory_.GetWeakPtr();
}
void ResourceMessageFilter::CreateLoaderAndStart(
mojom::URLLoaderAssociatedRequest request,
int32_t routing_id,
int32_t request_id,
uint32_t options,
const ResourceRequest& url_request,
mojom::URLLoaderClientPtr client,
const net::MutableNetworkTrafficAnnotationTag& traffic_annotation) {
DCHECK_EQ(options, mojom::kURLLoadOptionNone);
URLLoaderFactoryImpl::CreateLoaderAndStart(
requester_info_.get(), std::move(request), routing_id, request_id,
url_request, std::move(client),
net::NetworkTrafficAnnotationTag(traffic_annotation));
}
void ResourceMessageFilter::SyncLoad(int32_t routing_id,
int32_t request_id,
const ResourceRequest& url_request,
SyncLoadCallback callback) {
URLLoaderFactoryImpl::SyncLoad(requester_info_.get(), routing_id, request_id,
url_request, std::move(callback));
}
int ResourceMessageFilter::child_id() const {
return requester_info_->child_id();
}
void ResourceMessageFilter::InitializeForTest() {
InitializeOnIOThread();
}
void ResourceMessageFilter::InitializeOnIOThread() {
DCHECK(io_thread_task_runner_->BelongsToCurrentThread());
// The WeakPtr of the filter must be created on the IO thread. So sets the
// WeakPtr of |requester_info_| now.
requester_info_->set_filter(GetWeakPtr());
}
} // namespace content
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