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// Copyright 2014 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/navigation_url_loader_impl_core.h"
#include "base/bind.h"
#include "base/location.h"
#include "content/browser/frame_host/navigation_request_info.h"
#include "content/browser/loader/navigation_resource_handler.h"
#include "content/browser/loader/resource_dispatcher_host_impl.h"
#include "content/common/navigation_params.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/stream_handle.h"
#include "content/public/common/resource_response.h"
#include "net/base/net_errors.h"
#include "net/url_request/redirect_info.h"
namespace content {
NavigationURLLoaderImplCore::NavigationURLLoaderImplCore(
const base::WeakPtr<NavigationURLLoaderImpl>& loader)
: loader_(loader),
resource_handler_(nullptr) {
// This object is created on the UI thread but otherwise is accessed and
// deleted on the IO thread.
DCHECK_CURRENTLY_ON(BrowserThread::UI);
}
NavigationURLLoaderImplCore::~NavigationURLLoaderImplCore() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (resource_handler_)
resource_handler_->Cancel();
}
void NavigationURLLoaderImplCore::Start(
ResourceContext* resource_context,
int64 frame_tree_node_id,
const CommonNavigationParams& common_params,
scoped_ptr<NavigationRequestInfo> request_info,
ResourceRequestBody* request_body) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
ResourceDispatcherHostImpl::Get()->BeginNavigationRequest(
resource_context, frame_tree_node_id,
common_params, *request_info, request_body,
this);
}
void NavigationURLLoaderImplCore::FollowRedirect() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (resource_handler_)
resource_handler_->FollowRedirect();
}
void NavigationURLLoaderImplCore::NotifyRequestRedirected(
const net::RedirectInfo& redirect_info,
ResourceResponse* response) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Make a copy of the ResourceResponse before it is passed to another thread.
//
// TODO(davidben): This copy could be avoided if ResourceResponse weren't
// reference counted and the loader stack passed unique ownership of the
// response. https://crbug.com/416050
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&NavigationURLLoaderImpl::NotifyRequestRedirected, loader_,
redirect_info, response->DeepCopy()));
}
void NavigationURLLoaderImplCore::NotifyResponseStarted(
ResourceResponse* response,
scoped_ptr<StreamHandle> body) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// If, by the time the task reaches the UI thread, |loader_| has already been
// destroyed, NotifyResponseStarted will not run. |body| will be destructed
// and the request released at that point.
// Make a copy of the ResourceResponse before it is passed to another thread.
//
// TODO(davidben): This copy could be avoided if ResourceResponse weren't
// reference counted and the loader stack passed unique ownership of the
// response. https://crbug.com/416050
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&NavigationURLLoaderImpl::NotifyResponseStarted, loader_,
response->DeepCopy(), base::Passed(&body)));
}
void NavigationURLLoaderImplCore::NotifyRequestFailed(int net_error) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&NavigationURLLoaderImpl::NotifyRequestFailed, loader_,
net_error));
}
} // namespace content
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