chrome/browser/sync/sync_stopped_reporter.cc

   1 // Copyright 2015 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 "chrome/browser/sync/sync_stopped_reporter.h"
   6
   7 #include "base/location.h"
   8 #include "base/logging.h"
   9 #include "base/single_thread_task_runner.h"
  10 #include "base/strings/stringprintf.h"
  11 #include "base/thread_task_runner_handle.h"
  12 #include "base/timer/timer.h"
  13 #include "chrome/browser/profiles/profile.h"
  14 #include "chrome/browser/sync/glue/local_device_info_provider_impl.h"
  15 #include "net/base/load_flags.h"
  16 #include "net/http/http_status_code.h"
  17 #include "net/url_request/url_fetcher.h"
  18 #include "net/url_request/url_request_context_getter.h"
  19 #include "sync/protocol/sync.pb.h"
  20
  21 namespace {
  22
  23 const char kEventEndpoint[] = "event";
  24
  25 // The request is tiny, so even on poor connections 10 seconds should be
  26 // plenty of time. Since sync is off when this request is started, we don't
  27 // want anything sync-related hanging around for very long from a human
  28 // perspective either. This seems like a good compromise.
  29 const int kRequestTimeoutSeconds = 10;
  30
  31 std::string GetUserAgent() {
  32   return browser_sync::LocalDeviceInfoProviderImpl::MakeUserAgentForSyncApi();
  33 }
  34
  35 }  // namespace
  36
  37 namespace browser_sync {
  38
  39 SyncStoppedReporter::SyncStoppedReporter(
  40     const GURL& sync_service_url,
  41     const scoped_refptr<net::URLRequestContextGetter>& request_context,
  42     const ResultCallback& callback)
  43     : sync_event_url_(GetSyncEventURL(sync_service_url)),
  44       user_agent_(GetUserAgent()),
  45       request_context_(request_context),
  46       callback_(callback) {
  47   DCHECK(!sync_service_url.is_empty());
  48   DCHECK(!user_agent_.empty());
  49   DCHECK(request_context);
  50 }
  51
  52 SyncStoppedReporter::~SyncStoppedReporter() {}
  53
  54 void SyncStoppedReporter::ReportSyncStopped(const std::string& access_token,
  55                                             const std::string& cache_guid,
  56                                             const std::string& birthday) {
  57   DCHECK(!access_token.empty());
  58   DCHECK(!cache_guid.empty());
  59   DCHECK(!birthday.empty());
  60
  61   // Make the request proto with the GUID identifying this client.
  62   sync_pb::EventRequest event_request;
  63   sync_pb::SyncDisabledEvent* sync_disabled_event =
  64       event_request.mutable_sync_disabled();
  65   sync_disabled_event->set_cache_guid(cache_guid);
  66   sync_disabled_event->set_store_birthday(birthday);
  67
  68   std::string msg;
  69   event_request.SerializeToString(&msg);
  70
  71   fetcher_ =
  72       net::URLFetcher::Create(sync_event_url_, net::URLFetcher::POST, this);
  73   fetcher_->AddExtraRequestHeader(base::StringPrintf(
  74       "%s: Bearer %s", net::HttpRequestHeaders::kAuthorization,
  75       access_token.c_str()));
  76   fetcher_->AddExtraRequestHeader(base::StringPrintf(
  77       "%s: %s", net::HttpRequestHeaders::kUserAgent, user_agent_.c_str()));
  78   fetcher_->SetRequestContext(request_context_.get());
  79   fetcher_->SetUploadData("application/octet-stream", msg);
  80   fetcher_->SetLoadFlags(net::LOAD_BYPASS_CACHE |
  81                          net::LOAD_DISABLE_CACHE |
  82                          net::LOAD_DO_NOT_SAVE_COOKIES |
  83                          net::LOAD_DO_NOT_SEND_COOKIES);
  84   fetcher_->Start();
  85   timer_.Start(FROM_HERE, base::TimeDelta::FromSeconds(kRequestTimeoutSeconds),
  86                this, &SyncStoppedReporter::OnTimeout);
  87 }
  88
  89 void SyncStoppedReporter::OnURLFetchComplete(const net::URLFetcher* source) {
  90   Result result = source->GetResponseCode() == net::HTTP_OK
  91       ? RESULT_SUCCESS : RESULT_ERROR;
  92   fetcher_.reset();
  93   timer_.Stop();
  94   if (!callback_.is_null()) {
  95     base::ThreadTaskRunnerHandle::Get()->PostTask(
  96         FROM_HERE, base::Bind(callback_, result));
  97   }
  98 }
  99
 100 void SyncStoppedReporter::OnTimeout() {
 101   fetcher_.reset();
 102   if (!callback_.is_null()) {
 103     base::ThreadTaskRunnerHandle::Get()->PostTask(
 104         FROM_HERE, base::Bind(callback_, RESULT_TIMEOUT));
 105   }
 106 }
 107
 108 // Static.
 109 GURL SyncStoppedReporter::GetSyncEventURL(const GURL& sync_service_url) {
 110   std::string path = sync_service_url.path();
 111   if (path.empty() || *path.rbegin() != '/') {
 112     path += '/';
 113   }
 114   path += kEventEndpoint;
 115   GURL::Replacements replacements;
 116   replacements.SetPathStr(path);
 117   return sync_service_url.ReplaceComponents(replacements);
 118 }
 119
 120 void SyncStoppedReporter::SetTimerTaskRunnerForTest(
 121     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner) {
 122   timer_.SetTaskRunner(task_runner);
 123 }
 124
 125 }  // namespace browser_sync