Revert 275154 "ChromeOS login webui refactoring : Move GAIA-rela..."

trunk/src/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc

 // Copyright 2013 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/ui/webui/chromeos/login/gaia_screen_handler.h"
 
 #include "base/logging.h"
-#include "base/metrics/histogram.h"
-#include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
-#include "chrome/browser/browser_shutdown.h"
-#include "chrome/browser/chromeos/login/ui/login_display_host_impl.h"
 #include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
 #include "chrome/browser/chromeos/login/users/user_manager.h"
-#include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
-#include "chrome/browser/io_thread.h"
 #include "chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/settings/cros_settings_names.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/render_frame_host.h"
-#include "google_apis/gaia/gaia_auth_util.h"
 #include "google_apis/gaia/gaia_switches.h"
 #include "google_apis/gaia/gaia_urls.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
-using content::BrowserThread;
-
 namespace chromeos {
 
 namespace {
 
 const char kJsScreenPath[] = "login.GaiaSigninScreen";
 
 void UpdateAuthParams(base::DictionaryValue* params, bool has_users) {
   CrosSettings* cros_settings = CrosSettings::Get();
   bool allow_new_user = true;
   cros_settings->GetBoolean(kAccountsPrefAllowNewUser, &allow_new_user);
@@ skipping 30 matching lines @@
 
   // Now check whether we're in multi-profiles user adding scenario and
   // disable GAIA right panel features if that's the case.
   if (UserAddingScreen::Get()->IsRunning()) {
     params->SetBoolean("createAccount", false);
     params->SetBoolean("guestSignin", false);
     params->SetBoolean("managedUsersEnabled", false);
   }
 }
 
-void RecordSAMLScrapingVerificationResultInHistogram(bool success) {
-  UMA_HISTOGRAM_BOOLEAN("ChromeOS.SAML.Scraping.VerificationResult", success);
-}
-
-// The Task posted to PostTaskAndReply in StartClearingDnsCache on the IO
-// thread.
-void ClearDnsCache(IOThread* io_thread) {
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
-  if (browser_shutdown::IsTryingToQuit())
-    return;
-
-  io_thread->ClearHostCache();
-}
-
 }  // namespace
 
 GaiaContext::GaiaContext()
     : force_reload(false),
       is_local(false),
       password_changed(false),
       show_users(false),
       use_offline(false),
       has_users(false) {}
 
 GaiaScreenHandler::GaiaScreenHandler(
     const scoped_refptr<NetworkStateInformer>& network_state_informer)
     : BaseScreenHandler(kJsScreenPath),
       frame_state_(FRAME_STATE_UNKNOWN),
       frame_error_(net::OK),
       network_state_informer_(network_state_informer),
-      dns_cleared_(false),
-      dns_clear_task_running_(false),
-      cookies_cleared_(false),
-      focus_stolen_(false),
-      gaia_silent_load_(false),
-      using_saml_api_(false),
-      test_expects_complete_login_(false),
-      signin_screen_handler_(NULL),
-      weak_factory_(this) {
+      signin_screen_handler_(NULL) {
   DCHECK(network_state_informer_.get());
 }
 
-GaiaScreenHandler::~GaiaScreenHandler() {
-}
+GaiaScreenHandler::~GaiaScreenHandler() {}
 
 void GaiaScreenHandler::LoadGaia(const GaiaContext& context) {
+  LOG(WARNING) << "LoadGaia() call.";
+
   base::DictionaryValue params;
 
   params.SetBoolean("forceReload", context.force_reload);
   params.SetBoolean("isLocal", context.is_local);
   params.SetBoolean("passwordChanged", context.password_changed);
   params.SetBoolean("isShowUsers", context.show_users);
   params.SetBoolean("useOffline", context.use_offline);
   params.SetString("email", context.email);
 
   UpdateAuthParams(&params, context.has_users);
@@ skipping 63 matching lines @@
   builder->Add("signinScreenTitle", IDS_SIGNIN_SCREEN_TITLE);
   builder->Add("signinScreenPasswordChanged",
                IDS_SIGNIN_SCREEN_PASSWORD_CHANGED);
   builder->Add("createAccount", IDS_CREATE_ACCOUNT_HTML);
   builder->Add("guestSignin", IDS_BROWSE_WITHOUT_SIGNING_IN_HTML);
   builder->Add("createLocallyManagedUser",
                IDS_CREATE_LOCALLY_MANAGED_USER_HTML);
   builder->Add("createManagedUserFeatureName",
                IDS_CREATE_LOCALLY_MANAGED_USER_FEATURE_NAME);
 
-  // Strings used by the SAML fatal error dialog.
-  builder->Add("fatalErrorMessageNoEmail", IDS_LOGIN_FATAL_ERROR_NO_EMAIL);
+  // Strings used by the fatal error dialog.
+  builder->Add("fatalErrorMessageNoEmail",  IDS_LOGIN_FATAL_ERROR_NO_EMAIL);
   builder->Add("fatalErrorMessageNoPassword",
                IDS_LOGIN_FATAL_ERROR_NO_PASSWORD);
   builder->Add("fatalErrorMessageVerificationFailed",
                IDS_LOGIN_FATAL_ERROR_PASSWORD_VERIFICATION);
   builder->Add("fatalErrorMessageInsecureURL",
                IDS_LOGIN_FATAL_ERROR_TEXT_INSECURE_URL);
   builder->Add("fatalErrorInstructions", IDS_LOGIN_FATAL_ERROR_INSTRUCTIONS);
   builder->Add("fatalErrorDismissButton", IDS_OK);
 }
 
-void GaiaScreenHandler::Initialize() {
-}
+void GaiaScreenHandler::Initialize() {}
 
 void GaiaScreenHandler::RegisterMessages() {
   AddCallback("frameLoadingCompleted",
               &GaiaScreenHandler::HandleFrameLoadingCompleted);
-  AddCallback("completeLogin", &GaiaScreenHandler::HandleCompleteLogin);
-  AddCallback("completeAuthentication",
-              &GaiaScreenHandler::HandleCompleteAuthentication);
-  AddCallback("usingSAMLAPI", &GaiaScreenHandler::HandleUsingSAMLAPI);
-  AddCallback("scrapedPasswordCount",
-              &GaiaScreenHandler::HandleScrapedPasswordCount);
-  AddCallback("scrapedPasswordVerificationFailed",
-              &GaiaScreenHandler::HandleScrapedPasswordVerificationFailed);
-  AddCallback("loginWebuiReady", &GaiaScreenHandler::HandleGaiaUIReady);
 }
 
 void GaiaScreenHandler::HandleFrameLoadingCompleted(int status) {
   const net::Error frame_error = static_cast<net::Error>(-status);
   if (frame_error == net::ERR_ABORTED) {
     LOG(WARNING) << "Ignoring Gaia frame error: " << frame_error;
     return;
   }
   frame_error_ = frame_error;
   if (frame_error == net::OK) {
     VLOG(1) << "Gaia is loaded";
     frame_state_ = FRAME_STATE_LOADED;
   } else {
     LOG(WARNING) << "Gaia frame error: " << frame_error_;
     frame_state_ = FRAME_STATE_ERROR;
   }
 
   if (network_state_informer_->state() != NetworkStateInformer::ONLINE)
     return;
   if (frame_state_ == FRAME_STATE_LOADED)
     UpdateState(ErrorScreenActor::ERROR_REASON_UPDATE);
   else if (frame_state_ == FRAME_STATE_ERROR)
     UpdateState(ErrorScreenActor::ERROR_REASON_FRAME_ERROR);
 }
 
-void GaiaScreenHandler::HandleCompleteAuthentication(
-    const std::string& email,
-    const std::string& password,
-    const std::string& auth_code) {
-  if (!Delegate())
-    return;
-  Delegate()->SetDisplayEmail(gaia::SanitizeEmail(email));
-  UserContext user_context(email);
-  user_context.SetKey(Key(password));
-  user_context.SetAuthCode(auth_code);
-  Delegate()->CompleteLogin(user_context);
-}
-
-void GaiaScreenHandler::HandleCompleteLogin(const std::string& typed_email,
-                                            const std::string& password,
-                                            bool using_saml) {
-  if (!Delegate())
-    return;
-
-  if (using_saml && !using_saml_api_)
-    RecordSAMLScrapingVerificationResultInHistogram(true);
-
-  const std::string sanitized_email = gaia::SanitizeEmail(typed_email);
-  Delegate()->SetDisplayEmail(sanitized_email);
-  UserContext user_context(sanitized_email);
-  user_context.SetKey(Key(password));
-  user_context.SetAuthFlow(using_saml
-                               ? UserContext::AUTH_FLOW_GAIA_WITH_SAML
-                               : UserContext::AUTH_FLOW_GAIA_WITHOUT_SAML);
-  Delegate()->CompleteLogin(user_context);
-
-  if (test_expects_complete_login_) {
-    VLOG(2) << "Complete test login for " << typed_email
-            << ", requested=" << test_user_;
-
-    test_expects_complete_login_ = false;
-    test_user_.clear();
-    test_pass_.clear();
-  }
-}
-
-void GaiaScreenHandler::HandleUsingSAMLAPI() {
-  SetSAMLPrincipalsAPIUsed(true);
-}
-
-void GaiaScreenHandler::HandleScrapedPasswordCount(int password_count) {
-  SetSAMLPrincipalsAPIUsed(false);
-  // Use a histogram that has 11 buckets, one for each of the values in [0, 9]
-  // and an overflow bucket at the end.
-  UMA_HISTOGRAM_ENUMERATION(
-      "ChromeOS.SAML.Scraping.PasswordCount", std::min(password_count, 10), 11);
-  if (password_count == 0)
-    HandleScrapedPasswordVerificationFailed();
-}
-
-void GaiaScreenHandler::HandleScrapedPasswordVerificationFailed() {
-  RecordSAMLScrapingVerificationResultInHistogram(false);
-}
-
-void GaiaScreenHandler::HandleGaiaUIReady() {
-  if (focus_stolen_) {
-    // Set focus to the Gaia page.
-    // TODO(altimofeev): temporary solution, until focus parameters are
-    // implemented on the Gaia side.
-    // Do this only once. Any subsequent call would relod GAIA frame.
-    focus_stolen_ = false;
-    const char code[] =
-        "if (typeof gWindowOnLoad != 'undefined') gWindowOnLoad();";
-    content::RenderFrameHost* frame =
-        LoginDisplayHostImpl::GetGaiaAuthIframe(web_ui()->GetWebContents());
-    frame->ExecuteJavaScript(base::ASCIIToUTF16(code));
-  }
-  if (gaia_silent_load_) {
-    focus_stolen_ = true;
-    // Prevent focus stealing by the Gaia page.
-    // TODO(altimofeev): temporary solution, until focus parameters are
-    // implemented on the Gaia side.
-    const char code[] =
-        "var gWindowOnLoad = window.onload; "
-        "window.onload=function() {};";
-    content::RenderFrameHost* frame =
-        LoginDisplayHostImpl::GetGaiaAuthIframe(web_ui()->GetWebContents());
-    frame->ExecuteJavaScript(base::ASCIIToUTF16(code));
-
-    // As we could miss and window.onload could already be called, restore
-    // focus to current pod (see crbug/175243).
-    DCHECK(signin_screen_handler_);
-    signin_screen_handler_->RefocusCurrentPod();
-  }
-  HandleFrameLoadingCompleted(0);
-
-  if (test_expects_complete_login_)
-    SubmitLoginFormForTest();
-}
-
-void GaiaScreenHandler::PopulateEmail(const std::string& user_id) {
-  populated_email_ = user_id;
-}
-
-void GaiaScreenHandler::PasswordChangedFor(const std::string& user_id) {
-  password_changed_for_.insert(user_id);
-}
-
-void GaiaScreenHandler::StartClearingDnsCache() {
-  if (dns_clear_task_running_ || !g_browser_process->io_thread())
-    return;
-
-  dns_cleared_ = false;
-  BrowserThread::PostTaskAndReply(
-      BrowserThread::IO,
-      FROM_HERE,
-      base::Bind(&ClearDnsCache, g_browser_process->io_thread()),
-      base::Bind(&GaiaScreenHandler::OnDnsCleared, weak_factory_.GetWeakPtr()));
-  dns_clear_task_running_ = true;
-}
-
-void GaiaScreenHandler::OnDnsCleared() {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  dns_clear_task_running_ = false;
-  dns_cleared_ = true;
-  ShowGaiaScreenIfReady();
-}
-
-void GaiaScreenHandler::StartClearingCookies(
-    const base::Closure& on_clear_callback) {
-  cookies_cleared_ = false;
-  ProfileHelper* profile_helper =
-      g_browser_process->platform_part()->profile_helper();
-  LOG_ASSERT(Profile::FromWebUI(web_ui()) ==
-             profile_helper->GetSigninProfile());
-  profile_helper->ClearSigninProfile(
-      base::Bind(&GaiaScreenHandler::OnCookiesCleared,
-                 weak_factory_.GetWeakPtr(),
-                 on_clear_callback));
-}
-
-void GaiaScreenHandler::OnCookiesCleared(
-    const base::Closure& on_clear_callback) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  cookies_cleared_ = true;
-  on_clear_callback.Run();
-}
-
-void GaiaScreenHandler::ShowSigninScreenForCreds(const std::string& username,
-                                                 const std::string& password) {
-  VLOG(2) << "ShowSigninScreenForCreds  for user " << username
-          << ", frame_state=" << FrameState();
-
-  test_user_ = username;
-  test_pass_ = password;
-  test_expects_complete_login_ = true;
-
-  // Submit login form for test if gaia is ready. If gaia is loading, login
-  // will be attempted in HandleLoginWebuiReady after gaia is ready. Otherwise,
-  // reload gaia then follow the loading case.
-  if (FrameState() == GaiaScreenHandler::FRAME_STATE_LOADED)
-    SubmitLoginFormForTest();
-  else if (FrameState() != GaiaScreenHandler::FRAME_STATE_LOADING) {
-    DCHECK(signin_screen_handler_);
-    signin_screen_handler_->OnShowAddUser();
-  }
-}
-
-void GaiaScreenHandler::SubmitLoginFormForTest() {
-  VLOG(2) << "Submit login form for test, user=" << test_user_;
-
-  std::string code;
-  code += "document.getElementById('Email').value = '" + test_user_ + "';";
-  code += "document.getElementById('Passwd').value = '" + test_pass_ + "';";
-  code += "document.getElementById('signIn').click();";
-
-  content::RenderFrameHost* frame =
-      LoginDisplayHostImpl::GetGaiaAuthIframe(web_ui()->GetWebContents());
-  frame->ExecuteJavaScript(base::ASCIIToUTF16(code));
-
-  // Test properties are cleared in HandleCompleteLogin because the form
-  // submission might fail and login will not be attempted after reloading
-  // if they are cleared here.
-}
-
-void GaiaScreenHandler::SetSAMLPrincipalsAPIUsed(bool api_used) {
-  using_saml_api_ = api_used;
-  UMA_HISTOGRAM_BOOLEAN("ChromeOS.SAML.APIUsed", api_used);
-}
-
-void GaiaScreenHandler::ShowGaia() {
-  if (gaia_silent_load_ && populated_email_.empty()) {
-    dns_cleared_ = true;
-    cookies_cleared_ = true;
-    ShowGaiaScreenIfReady();
-  } else {
-    StartClearingDnsCache();
-    StartClearingCookies(base::Bind(&GaiaScreenHandler::ShowGaiaScreenIfReady,
-                                    weak_factory_.GetWeakPtr()));
-  }
-}
-
-void GaiaScreenHandler::ShowGaiaScreenIfReady() {
-  if (!dns_cleared_ || !cookies_cleared_ || !Delegate())
-    return;
-
-  std::string active_network_path = network_state_informer_->network_path();
-  if (gaia_silent_load_ &&
-      (network_state_informer_->state() != NetworkStateInformer::ONLINE ||
-       gaia_silent_load_network_ != active_network_path)) {
-    // Network has changed. Force Gaia reload.
-    gaia_silent_load_ = false;
-    // Gaia page will be realoded, so focus isn't stolen anymore.
-    focus_stolen_ = false;
-  }
-
-  // Note that LoadAuthExtension clears |populated_email_|.
-  if (populated_email_.empty())
-    Delegate()->LoadSigninWallpaper();
-  else
-    Delegate()->LoadWallpaper(populated_email_);
-
-  // Set Least Recently Used input method for the user.
-  if (!populated_email_.empty())
-    signin_screen_handler_->SetUserInputMethod(populated_email_);
-
-  LoadAuthExtension(!gaia_silent_load_, false, false);
-  signin_screen_handler_->UpdateUIState(
-      SigninScreenHandler::UI_STATE_GAIA_SIGNIN, NULL);
-
-  if (gaia_silent_load_) {
-    // The variable is assigned to false because silently loaded Gaia page was
-    // used.
-    gaia_silent_load_ = false;
-    if (focus_stolen_)
-      HandleGaiaUIReady();
-  }
-
-  signin_screen_handler_->UpdateState(ErrorScreenActor::ERROR_REASON_UPDATE);
-}
-
-void GaiaScreenHandler::MaybePreloadAuthExtension() {
-  LOG(WARNING) << "MaybePreloadAuthExtension() call.";
-
-  // If cookies clearing was initiated or |dns_clear_task_running_| then auth
-  // extension showing has already been initiated and preloading is senseless.
-  if (signin_screen_handler_->ShouldLoadGaia() &&
-      !gaia_silent_load_ &&
-      !cookies_cleared_ &&
-      !dns_clear_task_running_ &&
-      network_state_informer_->state() == NetworkStateInformer::ONLINE) {
-    gaia_silent_load_ = true;
-    gaia_silent_load_network_ = network_state_informer_->network_path();
-    LoadAuthExtension(true, true, false);
-  }
-}
-
-void GaiaScreenHandler::LoadAuthExtension(bool force,
-                                          bool silent_load,
-                                          bool offline) {
-  GaiaContext context;
-  context.force_reload = force;
-  context.is_local = offline;
-  context.password_changed = !populated_email_.empty() &&
-                             password_changed_for_.count(populated_email_);
-  context.use_offline = offline;
-  context.email = populated_email_;
-  if (Delegate()) {
-    context.show_users = Delegate()->IsShowUsers();
-    context.has_users = !Delegate()->GetUsers().empty();
-  }
-
-  populated_email_.clear();
-
-  LoadGaia(context);
-}
-
 void GaiaScreenHandler::UpdateState(ErrorScreenActor::ErrorReason reason) {
   if (signin_screen_handler_)
     signin_screen_handler_->UpdateState(reason);
 }
 
-SigninScreenHandlerDelegate* GaiaScreenHandler::Delegate() {
-  DCHECK(signin_screen_handler_);
-  return signin_screen_handler_->delegate_;
-}
-
 void GaiaScreenHandler::SetSigninScreenHandler(SigninScreenHandler* handler) {
   signin_screen_handler_ = handler;
 }
+
 }  // namespace chromeos