src/components/component_updater/request_sender.cc

   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/sequenced_task_runner.h"
  12 #include "components/component_updater/component_updater_configurator.h"
  13 #include "components/component_updater/component_updater_utils.h"
  14 #include "net/url_request/url_fetcher.h"
  15
  16 namespace component_updater {
  17
  18 RequestSender::RequestSender(const Configurator& config) : config_(config) {
  19 }
  20
  21 RequestSender::~RequestSender() {
  22 }
  23
  24 void RequestSender::Send(const std::string& request_string,
  25                          const std::vector<GURL>& urls,
  26                          const RequestSenderCallback& request_sender_callback) {
  27   if (urls.empty()) {
  28     request_sender_callback.Run(NULL);
  29     return;
  30   }
  31
  32   request_string_ = request_string;
  33   urls_ = urls;
  34   request_sender_callback_ = request_sender_callback;
  35
  36   cur_url_ = urls_.begin();
  37
  38   SendInternal();
  39 }
  40
  41 void RequestSender::SendInternal() {
  42   DCHECK(cur_url_ != urls_.end());
  43   DCHECK(cur_url_->is_valid());
  44
  45   url_fetcher_.reset(SendProtocolRequest(
  46       *cur_url_, request_string_, this, config_.RequestContext()));
  47 }
  48
  49 void RequestSender::OnURLFetchComplete(const net::URLFetcher* source) {
  50   if (GetFetchError(*source) == 0) {
  51     request_sender_callback_.Run(source);
  52     return;
  53   }
  54
  55   if (++cur_url_ != urls_.end() &&
  56       config_.GetSequencedTaskRunner()->PostTask(
  57           FROM_HERE,
  58           base::Bind(&RequestSender::SendInternal, base::Unretained(this)))) {
  59     return;
  60   }
  61
  62   request_sender_callback_.Run(source);
  63 }
  64
  65 }  // namespace component_updater