src/chrome/browser/policy/cloud/user_policy_signin_service.cc

   1 // Copyright (c) 2012 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/policy/cloud/user_policy_signin_service.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/callback.h"
  10 #include "chrome/browser/browser_process.h"
  11 #include "chrome/browser/chrome_notification_types.h"
  12 #include "chrome/browser/profiles/profile.h"
  13 #include "chrome/browser/profiles/profile_manager.h"
  14 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
  15 #include "components/policy/core/common/cloud/cloud_policy_client_registration_helper.h"
  16 #include "components/policy/core/common/cloud/user_cloud_policy_manager.h"
  17 #include "components/signin/core/browser/profile_oauth2_token_service.h"
  18 #include "components/signin/core/browser/signin_manager.h"
  19 #include "content/public/browser/notification_details.h"
  20 #include "content/public/browser/notification_source.h"
  21 #include "google_apis/gaia/gaia_constants.h"
  22 #include "net/url_request/url_request_context_getter.h"
  23
  24 namespace policy {
  25
  26 UserPolicySigninService::UserPolicySigninService(
  27     Profile* profile,
  28     PrefService* local_state,
  29     DeviceManagementService* device_management_service,
  30     UserCloudPolicyManager* policy_manager,
  31     SigninManager* signin_manager,
  32     scoped_refptr<net::URLRequestContextGetter> system_request_context,
  33     ProfileOAuth2TokenService* token_service)
  34     : UserPolicySigninServiceBase(profile,
  35                                   local_state,
  36                                   device_management_service,
  37                                   policy_manager,
  38                                   signin_manager,
  39                                   system_request_context),
  40       profile_(profile),
  41       oauth2_token_service_(token_service) {
  42   // ProfileOAuth2TokenService should not yet have loaded its tokens since this
  43   // happens in the background after PKS initialization - so this service
  44   // should always be created before the oauth token is available.
  45   DCHECK(!oauth2_token_service_->RefreshTokenIsAvailable(
  46              signin_manager->GetAuthenticatedAccountId()));
  47
  48   // Listen for an OAuth token to become available so we can register a client
  49   // if for some reason the client is not already registered (for example, if
  50   // the policy load failed during initial signin).
  51   oauth2_token_service_->AddObserver(this);
  52 }
  53
  54 UserPolicySigninService::~UserPolicySigninService() {
  55 }
  56
  57 void UserPolicySigninService::PrepareForUserCloudPolicyManagerShutdown() {
  58   // Stop any pending registration helper activity. We do this here instead of
  59   // in the destructor because we want to shutdown the registration helper
  60   // before UserCloudPolicyManager shuts down the CloudPolicyClient.
  61   registration_helper_.reset();
  62
  63   UserPolicySigninServiceBase::PrepareForUserCloudPolicyManagerShutdown();
  64 }
  65
  66 void UserPolicySigninService::Shutdown() {
  67   UserPolicySigninServiceBase::Shutdown();
  68   oauth2_token_service_->RemoveObserver(this);
  69 }
  70
  71 void UserPolicySigninService::RegisterForPolicy(
  72     const std::string& username,
  73     const std::string& oauth2_refresh_token,
  74     const PolicyRegistrationCallback& callback) {
  75   DCHECK(!oauth2_refresh_token.empty());
  76
  77   // Create a new CloudPolicyClient for fetching the DMToken.
  78   scoped_ptr<CloudPolicyClient> policy_client = CreateClientForRegistrationOnly(
  79       username);
  80   if (!policy_client) {
  81     callback.Run(std::string(), std::string());
  82     return;
  83   }
  84
  85   // Fire off the registration process. Callback keeps the CloudPolicyClient
  86   // alive for the length of the registration process. Use the system
  87   // request context because the user is not signed in to this profile yet
  88   // (we are just doing a test registration to see if policy is supported for
  89   // this user).
  90   registration_helper_.reset(new CloudPolicyClientRegistrationHelper(
  91       policy_client.get(),
  92       enterprise_management::DeviceRegisterRequest::BROWSER));
  93   registration_helper_->StartRegistrationWithLoginToken(
  94       oauth2_refresh_token,
  95       base::Bind(&UserPolicySigninService::CallPolicyRegistrationCallback,
  96                  base::Unretained(this),
  97                  base::Passed(&policy_client),
  98                  callback));
  99 }
 100
 101 void UserPolicySigninService::CallPolicyRegistrationCallback(
 102     scoped_ptr<CloudPolicyClient> client,
 103     PolicyRegistrationCallback callback) {
 104   registration_helper_.reset();
 105   callback.Run(client->dm_token(), client->client_id());
 106 }
 107
 108 void UserPolicySigninService::OnRefreshTokenAvailable(
 109     const std::string& account_id) {
 110   // If using a TestingProfile with no UserCloudPolicyManager, skip
 111   // initialization.
 112   if (!policy_manager()) {
 113     DVLOG(1) << "Skipping initialization for tests due to missing components.";
 114     return;
 115   }
 116
 117   // Ignore OAuth tokens for any account but the primary one.
 118   if (account_id != signin_manager()->GetAuthenticatedAccountId())
 119     return;
 120
 121   // ProfileOAuth2TokenService now has a refresh token so initialize the
 122   // UserCloudPolicyManager.
 123   InitializeForSignedInUser(signin_manager()->GetAuthenticatedUsername(),
 124                             profile_->GetRequestContext());
 125 }
 126
 127 void UserPolicySigninService::InitializeUserCloudPolicyManager(
 128     const std::string& username,
 129     scoped_ptr<CloudPolicyClient> client) {
 130   UserPolicySigninServiceBase::InitializeUserCloudPolicyManager(username,
 131                                                                 client.Pass());
 132   ProhibitSignoutIfNeeded();
 133 }
 134
 135 void UserPolicySigninService::ShutdownUserCloudPolicyManager() {
 136   UserCloudPolicyManager* manager = policy_manager();
 137   // Allow the user to signout again.
 138   if (manager)
 139     signin_manager()->ProhibitSignout(false);
 140   UserPolicySigninServiceBase::ShutdownUserCloudPolicyManager();
 141 }
 142
 143 void UserPolicySigninService::OnInitializationCompleted(
 144     CloudPolicyService* service) {
 145   UserCloudPolicyManager* manager = policy_manager();
 146   DCHECK_EQ(service, manager->core()->service());
 147   DCHECK(service->IsInitializationComplete());
 148   // The service is now initialized - if the client is not yet registered, then
 149   // it means that there is no cached policy and so we need to initiate a new
 150   // client registration.
 151   DVLOG_IF(1, manager->IsClientRegistered())
 152       << "Client already registered - not fetching DMToken";
 153   if (!manager->IsClientRegistered()) {
 154     if (!oauth2_token_service_->RefreshTokenIsAvailable(
 155              signin_manager()->GetAuthenticatedAccountId())) {
 156       // No token yet - this class listens for OnRefreshTokenAvailable()
 157       // and will re-attempt registration once the token is available.
 158       DLOG(WARNING) << "No OAuth Refresh Token - delaying policy download";
 159       return;
 160     }
 161     RegisterCloudPolicyService();
 162   }
 163   // If client is registered now, prohibit signout.
 164   ProhibitSignoutIfNeeded();
 165 }
 166
 167 void UserPolicySigninService::RegisterCloudPolicyService() {
 168   DCHECK(!policy_manager()->IsClientRegistered());
 169   DVLOG(1) << "Fetching new DM Token";
 170   // Do nothing if already starting the registration process.
 171   if (registration_helper_)
 172     return;
 173
 174   // Start the process of registering the CloudPolicyClient. Once it completes,
 175   // policy fetch will automatically happen.
 176   registration_helper_.reset(new CloudPolicyClientRegistrationHelper(
 177       policy_manager()->core()->client(),
 178       enterprise_management::DeviceRegisterRequest::BROWSER));
 179   registration_helper_->StartRegistration(
 180       oauth2_token_service_,
 181       signin_manager()->GetAuthenticatedAccountId(),
 182       base::Bind(&UserPolicySigninService::OnRegistrationComplete,
 183                  base::Unretained(this)));
 184 }
 185
 186 void UserPolicySigninService::OnRegistrationComplete() {
 187   ProhibitSignoutIfNeeded();
 188   registration_helper_.reset();
 189 }
 190
 191 void UserPolicySigninService::ProhibitSignoutIfNeeded() {
 192   if (policy_manager()->IsClientRegistered()) {
 193     DVLOG(1) << "User is registered for policy - prohibiting signout";
 194     signin_manager()->ProhibitSignout(true);
 195   }
 196 }
 197
 198 }  // namespace policy