1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "components/component_updater/request_sender.h"
6
7#include "base/bind.h"
8#include "base/bind_helpers.h"
9#include "base/location.h"
10#include "base/logging.h"
11#include "base/single_thread_task_runner.h"
12#include "base/thread_task_runner_handle.h"
13#include "components/component_updater/component_updater_configurator.h"
14#include "components/component_updater/component_updater_utils.h"
15#include "net/url_request/url_fetcher.h"
16
17namespace component_updater {
18
19RequestSender::RequestSender(const Configurator& config) : config_(config) {
20}
21
22RequestSender::~RequestSender() {
23  DCHECK(thread_checker_.CalledOnValidThread());
24}
25
26void RequestSender::Send(const std::string& request_string,
27                         const std::vector<GURL>& urls,
28                         const RequestSenderCallback& request_sender_callback) {
29  DCHECK(thread_checker_.CalledOnValidThread());
30  if (urls.empty()) {
31    request_sender_callback.Run(NULL);
32    return;
33  }
34
35  request_string_ = request_string;
36  urls_ = urls;
37  request_sender_callback_ = request_sender_callback;
38
39  cur_url_ = urls_.begin();
40
41  SendInternal();
42}
43
44void RequestSender::SendInternal() {
45  DCHECK(cur_url_ != urls_.end());
46  DCHECK(cur_url_->is_valid());
47  DCHECK(thread_checker_.CalledOnValidThread());
48
49  url_fetcher_.reset(SendProtocolRequest(
50      *cur_url_, request_string_, this, config_.RequestContext()));
51}
52
53void RequestSender::OnURLFetchComplete(const net::URLFetcher* source) {
54  DCHECK(thread_checker_.CalledOnValidThread());
55  if (GetFetchError(*source) == 0) {
56    request_sender_callback_.Run(source);
57    return;
58  }
59
60  if (++cur_url_ != urls_.end() &&
61      base::ThreadTaskRunnerHandle::Get()->PostTask(
62          FROM_HERE,
63          base::Bind(&RequestSender::SendInternal, base::Unretained(this)))) {
64    return;
65  }
66
67  request_sender_callback_.Run(source);
68}
69
70}  // namespace component_updater
71