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// Copyright (c) 2011 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/safe_browsing/safe_browsing_tab_observer.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/render_messages.h"
#include "content/browser/renderer_host/render_view_host.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/web_contents.h"
#if defined(ENABLE_SAFE_BROWSING)
#include "chrome/browser/safe_browsing/client_side_detection_host.h"
#endif
namespace safe_browsing {
#if !defined(ENABLE_SAFE_BROWSING)
// Provide a dummy implementation so that scoped_ptr<ClientSideDetectionHost>
// has a concrete destructor to call. This is necessary because it is used
// as a member of SafeBrowsingTabObserver, even if it only ever contains NULL.
class ClientSideDetectionHost { };
#endif
SafeBrowsingTabObserver::SafeBrowsingTabObserver(
TabContentsWrapper* wrapper) : wrapper_(wrapper) {
#if defined(ENABLE_SAFE_BROWSING)
PrefService* prefs = wrapper_->profile()->GetPrefs();
if (prefs) {
pref_change_registrar_.Init(prefs);
pref_change_registrar_.Add(prefs::kSafeBrowsingEnabled, this);
if (prefs->GetBoolean(prefs::kSafeBrowsingEnabled) &&
g_browser_process->safe_browsing_detection_service()) {
safebrowsing_detection_host_.reset(
ClientSideDetectionHost::Create(wrapper_->web_contents()));
}
}
#endif
}
SafeBrowsingTabObserver::~SafeBrowsingTabObserver() {
}
////////////////////////////////////////////////////////////////////////////////
// content::NotificationObserver overrides
void SafeBrowsingTabObserver::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case chrome::NOTIFICATION_PREF_CHANGED: {
std::string* pref_name = content::Details<std::string>(details).ptr();
DCHECK(content::Source<PrefService>(source).ptr() ==
wrapper_->profile()->GetPrefs());
if (*pref_name == prefs::kSafeBrowsingEnabled) {
UpdateSafebrowsingDetectionHost();
} else {
NOTREACHED() << "unexpected pref change notification" << *pref_name;
}
break;
}
default:
NOTREACHED();
}
}
////////////////////////////////////////////////////////////////////////////////
// Internal helpers
void SafeBrowsingTabObserver::UpdateSafebrowsingDetectionHost() {
#if defined(ENABLE_SAFE_BROWSING)
PrefService* prefs = wrapper_->profile()->GetPrefs();
bool safe_browsing = prefs->GetBoolean(prefs::kSafeBrowsingEnabled);
if (safe_browsing &&
g_browser_process->safe_browsing_detection_service()) {
if (!safebrowsing_detection_host_.get()) {
safebrowsing_detection_host_.reset(
ClientSideDetectionHost::Create(wrapper_->web_contents()));
}
} else {
safebrowsing_detection_host_.reset();
}
RenderViewHost* rvh = wrapper_->web_contents()->GetRenderViewHost();
rvh->Send(new ChromeViewMsg_SetClientSidePhishingDetection(rvh->routing_id(),
safe_browsing));
#endif
}
} // namespace safe_browsing
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