Extract LoginPerformer to chromeos/auth

chrome/browser/chromeos/login/auth/chrome_login_performer.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/chromeos/login/auth/login_performer.h"
+#include "chrome/browser/chromeos/login/auth/chrome_login_performer.h"
 
 #include "base/bind.h"
-#include "base/logging.h"
-#include "base/message_loop/message_loop.h"
-#include "base/metrics/histogram.h"
-#include "base/prefs/pref_service.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/threading/thread_restrictions.h"
+#include "base/thread_task_runner_handle.h"
 #include "chrome/browser/browser_process.h"
-#include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/chromeos/boot_times_loader.h"
 #include "chrome/browser/chromeos/login/login_utils.h"
 #include "chrome/browser/chromeos/login/supervised/supervised_user_authentication.h"
 #include "chrome/browser/chromeos/login/supervised/supervised_user_constants.h"
 #include "chrome/browser/chromeos/login/supervised/supervised_user_login_flow.h"
 #include "chrome/browser/chromeos/login/users/chrome_user_manager.h"
 #include "chrome/browser/chromeos/login/users/supervised_user_manager.h"
 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
 #include "chrome/browser/chromeos/policy/device_local_account_policy_service.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
-#include "chrome/common/pref_names.h"
-#include "chromeos/dbus/dbus_thread_manager.h"
-#include "chromeos/dbus/session_manager_client.h"
-#include "chromeos/login/user_names.h"
-#include "chromeos/settings/cros_settings_names.h"
-#include "components/user_manager/user_manager.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/notification_types.h"
-#include "content/public/browser/user_metrics.h"
-#include "google_apis/gaia/gaia_auth_util.h"
-#include "net/cookies/cookie_monster.h"
-#include "net/cookies/cookie_store.h"
-#include "net/url_request/url_request_context.h"
-#include "net/url_request/url_request_context_getter.h"
-
-using base::UserMetricsAction;
-using content::BrowserThread;
 
 namespace chromeos {
 
-LoginPerformer::LoginPerformer(Delegate* delegate)
-    : online_attempt_host_(this),
-      last_login_failure_(AuthFailure::AuthFailureNone()),
-      delegate_(delegate),
-      password_changed_(false),
-      password_changed_callback_count_(0),
-      auth_mode_(AUTH_MODE_INTERNAL),
+ChromeLoginPerformer::ChromeLoginPerformer(Delegate* delegate)
+    : LoginPerformer(base::ThreadTaskRunnerHandle::Get(), delegate),
       weak_factory_(this) {
 }
 
-LoginPerformer::~LoginPerformer() {
-  DVLOG(1) << "Deleting LoginPerformer";
-  if (authenticator_.get())
-    authenticator_->SetConsumer(NULL);
-  if (extended_authenticator_.get())
-    extended_authenticator_->SetConsumer(NULL);
+ChromeLoginPerformer::~ChromeLoginPerformer() {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
-// LoginPerformer, AuthStatusConsumer implementation:
+// ChromeLoginPerformer, public:
 
-void LoginPerformer::OnAuthFailure(const AuthFailure& failure) {
-  content::RecordAction(UserMetricsAction("Login_Failure"));
-  UMA_HISTOGRAM_ENUMERATION("Login.FailureReason",
-                            failure.reason(),
-                            AuthFailure::NUM_FAILURE_REASONS);
-
-  DVLOG(1) << "failure.reason " << failure.reason();
-  DVLOG(1) << "failure.error.state " << failure.error().state();
-
-  last_login_failure_ = failure;
-  if (delegate_) {
-    delegate_->OnAuthFailure(failure);
-    return;
-  } else {
-    // COULD_NOT_MOUNT_CRYPTOHOME, COULD_NOT_MOUNT_TMPFS:
-    // happens during offline auth only.
-    NOTREACHED();
-  }
-}
-
-void LoginPerformer::OnRetailModeAuthSuccess(const UserContext& user_context) {
-  content::RecordAction(
-      UserMetricsAction("Login_DemoUserLoginSuccess"));
-  AuthStatusConsumer::OnRetailModeAuthSuccess(user_context);
-}
-
-void LoginPerformer::OnAuthSuccess(const UserContext& user_context) {
-  content::RecordAction(UserMetricsAction("Login_Success"));
-  VLOG(1) << "LoginSuccess hash: " << user_context.GetUserIDHash();
-  DCHECK(delegate_);
-  // After delegate_->OnAuthSuccess(...) is called, delegate_ releases
-  // LoginPerformer ownership. LP now manages it's lifetime on its own.
-  base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
-  delegate_->OnAuthSuccess(user_context);
-}
-
-void LoginPerformer::OnOffTheRecordAuthSuccess() {
-  content::RecordAction(
-      UserMetricsAction("Login_GuestLoginSuccess"));
-
-  if (delegate_)
-    delegate_->OnOffTheRecordAuthSuccess();
-  else
-    NOTREACHED();
-}
-
-void LoginPerformer::OnPasswordChangeDetected() {
-  password_changed_ = true;
-  password_changed_callback_count_++;
-  if (delegate_) {
-    delegate_->OnPasswordChangeDetected();
-  } else {
-    NOTREACHED();
-  }
-}
-
-void LoginPerformer::OnChecked(const std::string& username, bool success) {
-  if (!delegate_) {
-    // Delegate is reset in case of successful offline login.
-    // See ExistingUserConstoller::OnAuthSuccess().
-    // Case when user has changed password and enters old password
-    // does not block user from sign in yet.
-    return;
-  }
-  delegate_->OnOnlineChecked(username, success);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// LoginPerformer, public:
-
-void LoginPerformer::PerformLogin(const UserContext& user_context,
-                                  AuthorizationMode auth_mode) {
-  auth_mode_ = auth_mode;
-  user_context_ = user_context;
-
+bool ChromeLoginPerformer::RunTrustedCheck(const base::Closure& callback) {
   CrosSettings* cros_settings = CrosSettings::Get();
 
-  // Whitelist check is always performed during initial login.
   CrosSettingsProvider::TrustedStatus status =
       cros_settings->PrepareTrustedValues(
-          base::Bind(&LoginPerformer::PerformLogin,
+          base::Bind(&ChromeLoginPerformer::DidRunTrustedCheck,
                      weak_factory_.GetWeakPtr(),
-                     user_context_, auth_mode));
+                     callback));
   // Must not proceed without signature verification.
   if (status == CrosSettingsProvider::PERMANENTLY_UNTRUSTED) {
     if (delegate_)
       delegate_->PolicyLoadFailed();
     else
       NOTREACHED();
-    return;
+    return true;
   } else if (status != CrosSettingsProvider::TRUSTED) {
     // Value of AllowNewUser setting is still not verified.
     // Another attempt will be invoked after verification completion.
-    return;
+    return true;
   }
-
-  bool wildcard_match = false;
-  std::string email = gaia::CanonicalizeEmail(user_context.GetUserID());
-  bool is_whitelisted = LoginUtils::IsWhitelisted(email, &wildcard_match);
-  if (is_whitelisted) {
-    switch (auth_mode_) {
-      case AUTH_MODE_EXTENSION: {
-        // On enterprise devices, reconfirm login permission with the server.
-        policy::BrowserPolicyConnectorChromeOS* connector =
-            g_browser_process->platform_part()
-                ->browser_policy_connector_chromeos();
-        if (connector->IsEnterpriseManaged() && wildcard_match &&
-            !connector->IsNonEnterpriseUser(email)) {
-          wildcard_login_checker_.reset(new policy::WildcardLoginChecker());
-          wildcard_login_checker_->Start(
-                  ProfileHelper::GetSigninProfile()->GetRequestContext(),
-                  base::Bind(&LoginPerformer::OnlineWildcardLoginCheckCompleted,
-                             weak_factory_.GetWeakPtr()));
-        } else {
-          StartLoginCompletion();
-        }
-        break;
-      }
-      case AUTH_MODE_INTERNAL:
-        StartAuthentication();
-        break;
-    }
-  } else {
-    if (delegate_)
-      delegate_->WhiteListCheckFailed(user_context.GetUserID());
-    else
-      NOTREACHED();
-  }
+  callback.Run();

[Nikita (slow), 2014/10/06 15:12:34]

Please place last two lines of this method into else method with a comment (and
DCHECK)
// CrosSettingsProvider::TRUSTED

+  return false;
 }
 
-void LoginPerformer::LoginAsSupervisedUser(
-    const UserContext& user_context) {
-  DCHECK_EQ(chromeos::login::kSupervisedUserDomain,
-            gaia::ExtractDomainName(user_context.GetUserID()));
+void ChromeLoginPerformer::DidRunTrustedCheck(const base::Closure& callback) {
+  CrosSettings* cros_settings = CrosSettings::Get();
 
-  CrosSettings* cros_settings = CrosSettings::Get();
   CrosSettingsProvider::TrustedStatus status =
-        cros_settings->PrepareTrustedValues(
-            base::Bind(&LoginPerformer::LoginAsSupervisedUser,
-                       weak_factory_.GetWeakPtr(),
-                       user_context_));
+      cros_settings->PrepareTrustedValues(
+          base::Bind(&ChromeLoginPerformer::DidRunTrustedCheck,
+                     weak_factory_.GetWeakPtr(),
+                     callback));
   // Must not proceed without signature verification.
   if (status == CrosSettingsProvider::PERMANENTLY_UNTRUSTED) {
     if (delegate_)
       delegate_->PolicyLoadFailed();
     else
       NOTREACHED();
-    return;
   } else if (status != CrosSettingsProvider::TRUSTED) {
-    // Value of kAccountsPrefSupervisedUsersEnabled setting is still not
-    // verified. Another attempt will be invoked after verification completion.
+    // Value of AllowNewUser setting is still not verified.
+    // Another attempt will be invoked after verification completion.
     return;
   }
+  callback.Run();

[Nikita (slow), 2014/10/06 15:12:34]

nit: Same here, place in else block with comment CrosSettingsProvider::TRUSTED

+}
 
-  if (!user_manager::UserManager::Get()->AreSupervisedUsersAllowed()) {
-    LOG(ERROR) << "Login attempt of supervised user detected.";
-    delegate_->WhiteListCheckFailed(user_context.GetUserID());
-    return;
-  }
+bool ChromeLoginPerformer::IsUserWhitelisted(const std::string& username,
+                                             bool* wildcard_match) {
+  return LoginUtils::IsWhitelisted(username, wildcard_match);
+}
 
-  SupervisedUserLoginFlow* new_flow =
-      new SupervisedUserLoginFlow(user_context.GetUserID());
-  new_flow->set_host(
-      ChromeUserManager::Get()->GetUserFlow(user_context.GetUserID())->host());
-  ChromeUserManager::Get()->SetUserFlow(user_context.GetUserID(), new_flow);
-
-  SupervisedUserAuthentication* authentication =
-      ChromeUserManager::Get()->GetSupervisedUserManager()->GetAuthentication();
-
-  UserContext user_context_copy = authentication->TransformKey(user_context);
-
-  if (authentication->GetPasswordSchema(user_context.GetUserID()) ==
-      SupervisedUserAuthentication::SCHEMA_SALT_HASHED) {
-    if (extended_authenticator_.get()) {
-      extended_authenticator_->SetConsumer(NULL);
-    }
-    extended_authenticator_ = new ExtendedAuthenticator(this);
-    // TODO(antrim) : Replace empty callback with explicit method.
-    // http://crbug.com/351268
-    BrowserThread::PostTask(
-        BrowserThread::UI,
-        FROM_HERE,
-        base::Bind(&ExtendedAuthenticator::AuthenticateToMount,
-                   extended_authenticator_.get(),
-                   user_context_copy,
-                   ExtendedAuthenticator::ResultCallback()));
-
+void ChromeLoginPerformer::RunOnlineWhitelistCheck(
+    const std::string& username,
+    bool wildcard_match,
+    const base::Closure& success_callback,
+    const base::Closure& failure_callback) {
+  // On enterprise devices, reconfirm login permission with the server.
+  policy::BrowserPolicyConnectorChromeOS* connector =
+      g_browser_process->platform_part()->browser_policy_connector_chromeos();
+  if (connector->IsEnterpriseManaged() && wildcard_match &&
+      !connector->IsNonEnterpriseUser(username)) {
+    wildcard_login_checker_.reset(new policy::WildcardLoginChecker());
+    wildcard_login_checker_->Start(
+        ProfileHelper::GetSigninProfile()->GetRequestContext(),
+        base::Bind(&ChromeLoginPerformer::OnlineWildcardLoginCheckCompleted,
+                   weak_factory_.GetWeakPtr(),
+                   success_callback,
+                   failure_callback));
   } else {
-    authenticator_ = LoginUtils::Get()->CreateAuthenticator(this);
-    BrowserThread::PostTask(
-        BrowserThread::UI,
-        FROM_HERE,
-        base::Bind(&Authenticator::LoginAsSupervisedUser,
-                   authenticator_.get(),
-                   user_context_copy));
+    success_callback.Run();
   }
 }
 
-void LoginPerformer::LoginRetailMode() {
-  authenticator_ = LoginUtils::Get()->CreateAuthenticator(this);
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(&Authenticator::LoginRetailMode, authenticator_.get()));
+scoped_refptr<Authenticator> ChromeLoginPerformer::CreateAuthenticator() {
+  return LoginUtils::Get()->CreateAuthenticator(this);
 }
 
-void LoginPerformer::LoginOffTheRecord() {
-  authenticator_ = LoginUtils::Get()->CreateAuthenticator(this);
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(&Authenticator::LoginOffTheRecord, authenticator_.get()));
+bool ChromeLoginPerformer::AreSupervisedUsersAllowed() {
+  return user_manager::UserManager::Get()->AreSupervisedUsersAllowed();
 }
 
-void LoginPerformer::LoginAsPublicSession(const UserContext& user_context) {
+bool ChromeLoginPerformer::UseExtendedAuthenticatorForSupervisedUser(
+    const UserContext& user_context) {
+  SupervisedUserAuthentication* authentication =
+      ChromeUserManager::Get()->GetSupervisedUserManager()->GetAuthentication();
+  return authentication->GetPasswordSchema(user_context.GetUserID()) ==
+         SupervisedUserAuthentication::SCHEMA_SALT_HASHED;
+}
+
+UserContext ChromeLoginPerformer::TransformSupervisedKey(
+    const UserContext& context) {
+  SupervisedUserAuthentication* authentication =
+      ChromeUserManager::Get()->GetSupervisedUserManager()->GetAuthentication();
+  return authentication->TransformKey(context);
+}
+
+void ChromeLoginPerformer::SetupSupervisedUserFlow(const std::string& user_id) {
+  SupervisedUserLoginFlow* new_flow = new SupervisedUserLoginFlow(user_id);
+  new_flow->set_host(ChromeUserManager::Get()->GetUserFlow(user_id)->host());
+  ChromeUserManager::Get()->SetUserFlow(user_id, new_flow);
+}
+
+bool ChromeLoginPerformer::CheckPolicyForUser(const std::string& username) {
   // Login is not allowed if policy could not be loaded for the account.
   policy::BrowserPolicyConnectorChromeOS* connector =
       g_browser_process->platform_part()->browser_policy_connector_chromeos();
   policy::DeviceLocalAccountPolicyService* policy_service =
       connector->GetDeviceLocalAccountPolicyService();
-  if (!policy_service ||
-      !policy_service->IsPolicyAvailableForUser(user_context.GetUserID())) {
-    DCHECK(delegate_);
-    if (delegate_)
-      delegate_->PolicyLoadFailed();
-    return;
-  }
+  return policy_service && policy_service->IsPolicyAvailableForUser(username);
+}
+////////////////////////////////////////////////////////////////////////////////
+// ChromeLoginPerformer, private:
 
-  authenticator_ = LoginUtils::Get()->CreateAuthenticator(this);
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(&Authenticator::LoginAsPublicSession,
-                 authenticator_.get(),
-                 user_context));
+Profile* ChromeLoginPerformer::GetSigninProfile() {
+  return ProfileHelper::GetSigninProfile();
 }
 
-void LoginPerformer::LoginAsKioskAccount(const std::string& app_user_id,
-                                         bool use_guest_mount) {
-  authenticator_ = LoginUtils::Get()->CreateAuthenticator(this);
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(&Authenticator::LoginAsKioskAccount, authenticator_.get(),
-                 app_user_id, use_guest_mount));
+net::URLRequestContextGetter* ChromeLoginPerformer::GetSigninRequestContext() {
+  return ProfileHelper::GetSigninProfile()->GetRequestContext();
 }
 
-void LoginPerformer::RecoverEncryptedData(const std::string& old_password) {
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(&Authenticator::RecoverEncryptedData, authenticator_.get(),
-                 old_password));
-}
-
-void LoginPerformer::ResyncEncryptedData() {
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(&Authenticator::ResyncEncryptedData, authenticator_.get()));
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// LoginPerformer, private:
-
-void LoginPerformer::StartLoginCompletion() {
-  DVLOG(1) << "Login completion started";
-  BootTimesLoader::Get()->AddLoginTimeMarker("AuthStarted", false);
-  Profile* profile = ProfileHelper::GetSigninProfile();
-
-  authenticator_ = LoginUtils::Get()->CreateAuthenticator(this);
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(&Authenticator::CompleteLogin, authenticator_.get(),
-                 profile,
-                 user_context_));
-  user_context_.ClearSecrets();
-}
-
-void LoginPerformer::StartAuthentication() {
-  DVLOG(1) << "Auth started";
-  BootTimesLoader::Get()->AddLoginTimeMarker("AuthStarted", false);
-  Profile* profile = ProfileHelper::GetSigninProfile();
-  if (delegate_) {
-    authenticator_ = LoginUtils::Get()->CreateAuthenticator(this);
-    BrowserThread::PostTask(
-        BrowserThread::UI, FROM_HERE,
-        base::Bind(&Authenticator::AuthenticateToLogin, authenticator_.get(),
-                   profile,
-                   user_context_));
-    // Make unobtrusive online check. It helps to determine password change
-    // state in the case when offline login fails.
-    online_attempt_host_.Check(profile->GetRequestContext(), user_context_);
-  } else {
-    NOTREACHED();
-  }
-  user_context_.ClearSecrets();
-}
-
-void LoginPerformer::OnlineWildcardLoginCheckCompleted(
+void ChromeLoginPerformer::OnlineWildcardLoginCheckCompleted(
+    const base::Closure& success_callback,
+    const base::Closure& failure_callback,
     policy::WildcardLoginChecker::Result result) {
   if (result == policy::WildcardLoginChecker::RESULT_ALLOWED) {
-    StartLoginCompletion();
+    success_callback.Run();
   } else {
-    if (delegate_)
-      delegate_->WhiteListCheckFailed(user_context_.GetUserID());
+    failure_callback.Run();
   }
 }
 
 }  // namespace chromeos