chrome/browser/chromeos/login/auth/auth_prewarmer.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 "chrome/browser/chromeos/login/auth/auth_prewarmer.h"
   6
   7 #include "chrome/browser/chrome_notification_types.h"
   8 #include "chrome/browser/chromeos/login/helper.h"
   9 #include "chrome/browser/chromeos/profiles/profile_helper.h"
  10 #include "chrome/browser/net/preconnect.h"
  11 #include "chrome/browser/profiles/profile.h"
  12 #include "chromeos/network/network_handler.h"
  13 #include "chromeos/network/network_state.h"
  14 #include "chromeos/network/network_state_handler.h"
  15 #include "content/public/browser/browser_thread.h"
  16 #include "content/public/browser/notification_source.h"
  17 #include "google_apis/gaia/gaia_urls.h"
  18 #include "url/gurl.h"
  19
  20 namespace chromeos {
  21
  22 AuthPrewarmer::AuthPrewarmer()
  23     : doing_prewarm_(false) {
  24 }
  25
  26 AuthPrewarmer::~AuthPrewarmer() {
  27   if (registrar_.IsRegistered(
  28           this,
  29           chrome::NOTIFICATION_PROFILE_URL_REQUEST_CONTEXT_GETTER_INITIALIZED,
  30           content::Source<Profile>(ProfileHelper::GetSigninProfile()))) {
  31     registrar_.Remove(
  32         this,
  33         chrome::NOTIFICATION_PROFILE_URL_REQUEST_CONTEXT_GETTER_INITIALIZED,
  34         content::Source<Profile>(ProfileHelper::GetSigninProfile()));
  35   }
  36   NetworkHandler::Get()->network_state_handler()->RemoveObserver(this,
  37                                                                  FROM_HERE);
  38 }
  39
  40 void AuthPrewarmer::PrewarmAuthentication(
  41     const base::Closure& completion_callback) {
  42   if (doing_prewarm_) {
  43     LOG(ERROR) << "PrewarmAuthentication called twice.";
  44     return;
  45   }
  46   doing_prewarm_ = true;
  47   completion_callback_ = completion_callback;
  48   if (GetRequestContext() && IsNetworkConnected()) {
  49     DoPrewarm();
  50     return;
  51   }
  52   if (!IsNetworkConnected()) {
  53     // DefaultNetworkChanged will get called when a network becomes connected.
  54     NetworkHandler::Get()->network_state_handler()
  55         ->AddObserver(this, FROM_HERE);
  56   }
  57   if (!GetRequestContext()) {
  58     registrar_.Add(
  59         this,
  60         chrome::NOTIFICATION_PROFILE_URL_REQUEST_CONTEXT_GETTER_INITIALIZED,
  61         content::Source<Profile>(ProfileHelper::GetSigninProfile()));
  62   }
  63 }
  64
  65 void AuthPrewarmer::DefaultNetworkChanged(const NetworkState* network) {
  66   if (!network)
  67     return;  // Still no default (connected) network.
  68
  69   NetworkHandler::Get()->network_state_handler()
  70       ->RemoveObserver(this, FROM_HERE);
  71   if (GetRequestContext())
  72     DoPrewarm();
  73 }
  74
  75 void AuthPrewarmer::Observe(int type,
  76                             const content::NotificationSource& source,
  77                             const content::NotificationDetails& details) {
  78   switch (type) {
  79     case chrome::NOTIFICATION_PROFILE_URL_REQUEST_CONTEXT_GETTER_INITIALIZED:
  80       registrar_.Remove(
  81           this,
  82           chrome::NOTIFICATION_PROFILE_URL_REQUEST_CONTEXT_GETTER_INITIALIZED,
  83           content::Source<Profile>(ProfileHelper::GetSigninProfile()));
  84       if (IsNetworkConnected())
  85         DoPrewarm();
  86       break;
  87     default:
  88       NOTREACHED();
  89   }
  90 }
  91
  92 void AuthPrewarmer::DoPrewarm() {
  93   const int kConnectionsNeeded = 1;
  94
  95   std::vector<GURL> urls;
  96   urls.push_back(GaiaUrls::GetInstance()->service_login_url());
  97
  98   for (size_t i = 0; i < urls.size(); ++i) {
  99     chrome_browser_net::PreconnectOnUIThread(
 100         urls[i],
 101         urls[i],
 102         chrome_browser_net::UrlInfo::EARLY_LOAD_MOTIVATED,
 103         kConnectionsNeeded,
 104         GetRequestContext());
 105   }
 106   if (!completion_callback_.is_null()) {
 107     content::BrowserThread::PostTask(content::BrowserThread::UI,
 108                                      FROM_HERE,
 109                                      completion_callback_);
 110   }
 111 }
 112
 113 bool AuthPrewarmer::IsNetworkConnected() const {
 114   NetworkStateHandler* nsh = NetworkHandler::Get()->network_state_handler();
 115   return (nsh->ConnectedNetworkByType(NetworkTypePattern::Default()) != NULL);
 116 }
 117
 118 net::URLRequestContextGetter* AuthPrewarmer::GetRequestContext() const {
 119   return login::GetSigninContext();
 120 }
 121
 122 }  // namespace chromeos