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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/remoting/firewall_traversal_tab_helper.h"
#include "base/stringprintf.h"
#include "base/json/json_writer.h"
#include "base/values.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/pref_names.h"
#include "content/browser/renderer_host/render_view_host.h"
#include "content/common/notification_service.h"
#include "content/common/view_messages.h"
#include "ipc/ipc_message_macros.h"
FirewallTraversalTabHelper::FirewallTraversalTabHelper(
TabContents* tab_contents)
: TabContentsObserver(tab_contents) {
// Register for notifications about all interested prefs change.
Profile* profile =
Profile::FromBrowserContext(tab_contents->browser_context());
PrefService* prefs = profile->GetPrefs();
pref_change_registrar_.Init(prefs);
if (prefs) {
pref_change_registrar_.Add(prefs::kRemoteAccessClientFirewallTraversal,
this);
// kRemoteAccessHostFirewallTraversal intentionally not added because
// the host plugin is going to track it itself.
}
}
FirewallTraversalTabHelper::~FirewallTraversalTabHelper() {
// We don't want any notifications while we're running our destructor.
pref_change_registrar_.RemoveAll();
}
// static
void FirewallTraversalTabHelper::RegisterUserPrefs(PrefService* prefs) {
prefs->RegisterBooleanPref(prefs::kRemoteAccessClientFirewallTraversal,
true,
PrefService::UNSYNCABLE_PREF);
prefs->RegisterBooleanPref(prefs::kRemoteAccessHostFirewallTraversal,
true,
PrefService::UNSYNCABLE_PREF);
}
void FirewallTraversalTabHelper::Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) {
switch (type) {
case chrome::NOTIFICATION_PREF_CHANGED: {
std::string* pref_name_in = Details<std::string>(details).ptr();
Profile* profile =
Profile::FromBrowserContext(tab_contents()->browser_context());
DCHECK(Source<PrefService>(source).ptr() == profile->GetPrefs());
if (*pref_name_in == prefs::kRemoteAccessClientFirewallTraversal) {
UpdateFirewallTraversalState();
} else {
NOTREACHED() << "unexpected pref change notification" << *pref_name_in;
}
break;
}
default:
NOTREACHED();
}
}
void FirewallTraversalTabHelper::UpdateFirewallTraversalState() {
const char* pref_name = prefs::kRemoteAccessClientFirewallTraversal;
Profile* profile =
Profile::FromBrowserContext(tab_contents()->browser_context());
bool enabled = profile->GetPrefs()->GetBoolean(pref_name);
DictionaryValue value;
value.SetBoolean(pref_name, enabled);
std::string policy;
base::JSONWriter::Write(&value, false, &policy);
Send(new ViewMsg_UpdateRemoteAccessClientFirewallTraversal(routing_id(),
policy));
}
bool FirewallTraversalTabHelper::OnMessageReceived(const IPC::Message& msg) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(FirewallTraversalTabHelper, msg)
IPC_MESSAGE_HANDLER(ViewHostMsg_RequestRemoteAccessClientFirewallTraversal,
UpdateFirewallTraversalState)
// Have the super handle all other messages.
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
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