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