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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 "cronet_url_request_adapter.h"
#include "base/bind.h"
#include "base/location.h"
#include "base/logging.h"
#include "components/cronet/android/cronet_url_request_context_adapter.h"
#include "components/cronet/android/wrapped_channel_upload_element_reader.h"
#include "net/base/io_buffer.h"
#include "net/base/load_flags.h"
#include "net/http/http_status_code.h"
#include "net/url_request/redirect_info.h"
#include "net/url_request/url_request_context.h"
namespace cronet {
static const int kReadBufferSize = 32768;
CronetURLRequestAdapter::CronetURLRequestAdapter(
CronetURLRequestContextAdapter* context,
scoped_ptr<CronetURLRequestAdapterDelegate> delegate,
const GURL& url,
net::RequestPriority priority)
: context_(context),
delegate_(delegate.Pass()),
initial_url_(url),
initial_priority_(priority),
initial_method_("GET") {
}
CronetURLRequestAdapter::~CronetURLRequestAdapter() {
DCHECK(IsOnNetworkThread());
}
void CronetURLRequestAdapter::AddRequestHeader(const std::string& name,
const std::string& value) {
DCHECK(!IsOnNetworkThread());
initial_request_headers_.SetHeader(name, value);
}
bool CronetURLRequestAdapter::PostTaskToNetworkThread(
const tracked_objects::Location& from_here,
const base::Closure& task) {
DCHECK(!IsOnNetworkThread());
return context_->GetNetworkTaskRunner()->PostTask(from_here, task);
}
bool CronetURLRequestAdapter::IsOnNetworkThread() const {
return context_->GetNetworkTaskRunner()->BelongsToCurrentThread();
}
void CronetURLRequestAdapter::Start() {
DCHECK(IsOnNetworkThread());
VLOG(1) << "Starting chromium request: "
<< initial_url_.possibly_invalid_spec().c_str()
<< " priority: " << RequestPriorityToString(initial_priority_);
url_request_ = context_->GetURLRequestContext()->CreateRequest(
initial_url_, net::DEFAULT_PRIORITY, this, NULL);
url_request_->SetLoadFlags(net::LOAD_DISABLE_CACHE |
net::LOAD_DO_NOT_SAVE_COOKIES |
net::LOAD_DO_NOT_SEND_COOKIES);
url_request_->set_method(initial_method_);
url_request_->SetExtraRequestHeaders(initial_request_headers_);
url_request_->SetPriority(initial_priority_);
url_request_->Start();
}
void CronetURLRequestAdapter::FollowDeferredRedirect() {
DCHECK(IsOnNetworkThread());
url_request_->FollowDeferredRedirect();
}
void CronetURLRequestAdapter::ReadData() {
DCHECK(IsOnNetworkThread());
if (!read_buffer_.get())
read_buffer_ = new net::IOBufferWithSize(kReadBufferSize);
int bytes_read = 0;
url_request_->Read(read_buffer_.get(), read_buffer_->size(), &bytes_read);
// If IO is pending, wait for the URLRequest to call OnReadCompleted.
if (url_request_->status().is_io_pending())
return;
OnReadCompleted(url_request_.get(), bytes_read);
}
void CronetURLRequestAdapter::Destroy() {
DCHECK(IsOnNetworkThread());
delete this;
}
const net::HttpResponseHeaders*
CronetURLRequestAdapter::GetResponseHeaders() const {
DCHECK(IsOnNetworkThread());
return url_request_->response_headers();
}
const std::string& CronetURLRequestAdapter::GetNegotiatedProtocol() const {
DCHECK(IsOnNetworkThread());
return url_request_->response_info().npn_negotiated_protocol;
}
bool CronetURLRequestAdapter::GetWasCached() const {
DCHECK(IsOnNetworkThread());
return url_request_->response_info().was_cached;
}
int64 CronetURLRequestAdapter::GetTotalReceivedBytes() const {
DCHECK(IsOnNetworkThread());
return url_request_->GetTotalReceivedBytes();
}
// net::URLRequest::Delegate overrides (called on network thread).
void CronetURLRequestAdapter::OnReceivedRedirect(
net::URLRequest* request,
const net::RedirectInfo& redirect_info,
bool* defer_redirect) {
DCHECK(IsOnNetworkThread());
DCHECK(request->status().is_success());
delegate_->OnRedirect(redirect_info.new_url, redirect_info.status_code);
*defer_redirect = true;
}
void CronetURLRequestAdapter::OnResponseStarted(net::URLRequest* request) {
DCHECK(IsOnNetworkThread());
if (MaybeReportError(request))
return;
delegate_->OnResponseStarted(request->GetResponseCode());
}
void CronetURLRequestAdapter::OnReadCompleted(net::URLRequest* request,
int bytes_read) {
DCHECK(IsOnNetworkThread());
if (MaybeReportError(request))
return;
if (bytes_read != 0) {
delegate_->OnBytesRead(
reinterpret_cast<unsigned char*>(read_buffer_->data()), bytes_read);
} else {
delegate_->OnRequestFinished();
}
}
bool CronetURLRequestAdapter::MaybeReportError(net::URLRequest* request) const {
DCHECK_NE(net::URLRequestStatus::IO_PENDING, url_request_->status().status());
DCHECK_EQ(request, url_request_);
if (url_request_->status().is_success())
return false;
VLOG(1) << "Error " << url_request_->status().error()
<< " on chromium request: " << initial_url_.possibly_invalid_spec();
delegate_->OnError(url_request_->status().error());
return true;
}
} // namespace cronet
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