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// 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/password_manager/password_generation_manager.h"
#include "base/prefs/pref_service.h"
#include "chrome/browser/password_manager/password_manager.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/sync/profile_sync_service.h"
#include "chrome/browser/sync/profile_sync_service_factory.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_finder.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/common/pref_names.h"
#include "components/autofill/core/browser/password_generator.h"
#include "components/autofill/core/common/autofill_messages.h"
#include "components/user_prefs/pref_registry_syncable.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/password_form.h"
#include "ipc/ipc_message_macros.h"
#include "ui/gfx/rect.h"
DEFINE_WEB_CONTENTS_USER_DATA_KEY(PasswordGenerationManager);
PasswordGenerationManager::PasswordGenerationManager(
content::WebContents* contents)
: content::WebContentsObserver(contents),
enabled_(false),
weak_factory_(this) {
RegisterWithSyncService();
}
PasswordGenerationManager::~PasswordGenerationManager() {}
// static
void PasswordGenerationManager::CreateForWebContents(
content::WebContents* contents) {
content::WebContentsUserData<PasswordGenerationManager>::
CreateForWebContents(contents);
// Start observing changes to relevant prefs. This is not called in the
// constructor so that it's not enabled in testing.
FromWebContents(contents)->SetUpPrefChangeRegistrar();
}
// static
void PasswordGenerationManager::RegisterProfilePrefs(
user_prefs::PrefRegistrySyncable* registry) {
registry->RegisterBooleanPref(
prefs::kPasswordGenerationEnabled,
true,
user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
}
void PasswordGenerationManager::RegisterWithSyncService() {
Profile* profile = Profile::FromBrowserContext(
web_contents()->GetBrowserContext());
ProfileSyncService* sync_service =
ProfileSyncServiceFactory::GetForProfile(profile);
if (sync_service)
sync_service->AddObserver(this);
}
void PasswordGenerationManager::SetUpPrefChangeRegistrar() {
registrar_.Init(Profile::FromBrowserContext(
web_contents()->GetBrowserContext())->GetPrefs());
registrar_.Add(
prefs::kPasswordGenerationEnabled,
base::Bind(&PasswordGenerationManager::OnPrefStateChanged,
weak_factory_.GetWeakPtr()));
}
void PasswordGenerationManager::RenderViewCreated(
content::RenderViewHost* host) {
UpdateState(host, true);
}
bool PasswordGenerationManager::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PasswordGenerationManager, message)
IPC_MESSAGE_HANDLER(AutofillHostMsg_ShowPasswordGenerationPopup,
OnShowPasswordGenerationPopup)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PasswordGenerationManager::WebContentsDestroyed(
content::WebContents* contents) {
Profile* profile = Profile::FromBrowserContext(contents->GetBrowserContext());
ProfileSyncService* sync_service =
ProfileSyncServiceFactory::GetForProfile(profile);
if (sync_service && sync_service->HasObserver(this))
sync_service->RemoveObserver(this);
}
void PasswordGenerationManager::OnPrefStateChanged() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
if (web_contents() && web_contents()->GetRenderViewHost())
UpdateState(web_contents()->GetRenderViewHost(), false);
}
void PasswordGenerationManager::OnStateChanged() {
// It is possible for sync state to change during tab contents destruction.
// In this case, we don't need to update the renderer since it's going away.
if (web_contents() && web_contents()->GetRenderViewHost())
UpdateState(web_contents()->GetRenderViewHost(), false);
}
// In order for password generation to be enabled, we need to make sure:
// (1) Password sync is enabled,
// (2) Password manager is enabled, and
// (3) Password generation preference check box is checked.
void PasswordGenerationManager::UpdateState(content::RenderViewHost* host,
bool new_renderer) {
Profile* profile = Profile::FromBrowserContext(
web_contents()->GetBrowserContext());
bool saving_passwords_enabled =
PasswordManager::FromWebContents(web_contents())->IsSavingEnabled();
bool preference_checked = profile->GetPrefs()->GetBoolean(
prefs::kPasswordGenerationEnabled);
bool password_sync_enabled = false;
ProfileSyncService* sync_service =
ProfileSyncServiceFactory::GetForProfile(profile);
if (sync_service) {
syncer::ModelTypeSet sync_set = sync_service->GetActiveDataTypes();
password_sync_enabled = (sync_service->HasSyncSetupCompleted() &&
sync_set.Has(syncer::PASSWORDS));
}
bool new_enabled = (password_sync_enabled &&
saving_passwords_enabled &&
preference_checked);
if (new_enabled != enabled_ || new_renderer) {
enabled_ = new_enabled;
SendStateToRenderer(host, enabled_);
}
}
void PasswordGenerationManager::SendStateToRenderer(
content::RenderViewHost* host, bool enabled) {
host->Send(new AutofillMsg_PasswordGenerationEnabled(host->GetRoutingID(),
enabled));
}
void PasswordGenerationManager::OnShowPasswordGenerationPopup(
const gfx::Rect& bounds,
int max_length,
const content::PasswordForm& form) {
#if defined(OS_ANDROID)
NOTIMPLEMENTED();
#else
password_generator_.reset(new autofill::PasswordGenerator(max_length));
Browser* browser = chrome::FindBrowserWithWebContents(web_contents());
browser->window()->ShowPasswordGenerationBubble(bounds,
form,
password_generator_.get());
#endif // #if defined(OS_ANDROID)
}
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