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// Copyright (c) 2012 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/auto_login_prompter.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/logging.h"
#include "base/prefs/pref_service.h"
#include "chrome/browser/google/google_url_tracker.h"
#include "chrome/browser/infobars/infobar_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/signin/signin_manager.h"
#include "chrome/browser/signin/signin_manager_factory.h"
#include "chrome/browser/signin/token_service.h"
#include "chrome/browser/signin/token_service_factory.h"
#include "chrome/browser/sync/profile_sync_service.h"
#include "chrome/browser/sync/profile_sync_service_factory.h"
#include "chrome/browser/tab_contents/tab_util.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "components/auto_login_parser/auto_login_parser.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/web_contents.h"
#include "net/url_request/url_request.h"
#include "url/gurl.h"
using content::BrowserThread;
using content::WebContents;
namespace {
bool FetchUsernameThroughSigninManager(Profile* profile, std::string* output) {
// In an incognito window, there may not be a profile sync service and/or
// signin manager.
if (!ProfileSyncServiceFactory::GetInstance()->HasProfileSyncService(
profile)) {
return false;
}
if (!TokenServiceFactory::GetForProfile(profile)->AreCredentialsValid())
return false;
SigninManagerBase* signin_manager =
SigninManagerFactory::GetInstance()->GetForProfile(profile);
if (!signin_manager)
return false;
*output = signin_manager->GetAuthenticatedUsername();
return true;
}
} // namespace
AutoLoginPrompter::AutoLoginPrompter(WebContents* web_contents,
const Params& params,
const GURL& url)
: WebContentsObserver(web_contents),
params_(params),
url_(url),
infobar_shown_(false) {
if (!web_contents->IsLoading()) {
// If the WebContents isn't loading a page, the load notification will never
// be triggered. Try adding the InfoBar now.
AddInfoBarToWebContents();
}
}
AutoLoginPrompter::~AutoLoginPrompter() {
}
// static
void AutoLoginPrompter::ShowInfoBarIfPossible(net::URLRequest* request,
int child_id,
int route_id) {
if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableAutologin))
return;
// See if the response contains the X-Auto-Login header. If so, this was
// a request for a login page, and the server is allowing the browser to
// suggest auto-login, if available.
Params params;
// Currently we only accept GAIA credentials in Chrome.
if (!auto_login_parser::ParserHeaderInResponse(
request, auto_login_parser::ONLY_GOOGLE_COM, ¶ms.header))
return;
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&ShowInfoBarUIThread,
params, request->url(), child_id, route_id));
}
// static
void AutoLoginPrompter::ShowInfoBarUIThread(Params params,
const GURL& url,
int child_id,
int route_id) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
WebContents* web_contents = tab_util::GetWebContentsByID(child_id, route_id);
if (!web_contents)
return;
Profile* profile =
Profile::FromBrowserContext(web_contents->GetBrowserContext());
if (!profile->GetPrefs()->GetBoolean(prefs::kAutologinEnabled))
return;
#if !defined(OS_ANDROID)
// On Android, the username is fetched on the Java side from the
// AccountManager provided by the platform.
if (!FetchUsernameThroughSigninManager(profile, ¶ms.username))
return;
#endif
// Make sure that |account|, if specified, matches the logged in user.
// However, |account| is usually empty.
if (!params.username.empty() && !params.header.account.empty() &&
params.username != params.header.account)
return;
// We can't add the infobar just yet, since we need to wait for the tab to
// finish loading. If we don't, the info bar appears and then disappears
// immediately. Create an AutoLoginPrompter instance to listen for the
// relevant notifications; it will delete itself.
new AutoLoginPrompter(web_contents, params, url);
}
void AutoLoginPrompter::DidStopLoading(
content::RenderViewHost* render_view_host) {
AddInfoBarToWebContents();
delete this;
}
void AutoLoginPrompter::WebContentsDestroyed(WebContents* web_contents) {
// The WebContents was destroyed before the navigation completed.
delete this;
}
void AutoLoginPrompter::AddInfoBarToWebContents() {
if (infobar_shown_)
return;
InfoBarService* infobar_service =
InfoBarService::FromWebContents(web_contents());
// |infobar_service| is NULL for WebContents hosted in WebDialog.
if (infobar_service) {
AutoLoginInfoBarDelegate::Create(infobar_service, params_);
infobar_shown_ = true;
}
}
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