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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/search_engines/search_provider_install_state_message_filter.h"
#include "base/bind.h"
#include "base/logging.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/render_messages.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "googleurl/src/gurl.h"
using content::BrowserThread;
SearchProviderInstallStateMessageFilter::
SearchProviderInstallStateMessageFilter(
int render_process_id,
Profile* profile)
: ALLOW_THIS_IN_INITIALIZER_LIST(weak_factory_(this)),
provider_data_(profile, content::NOTIFICATION_RENDERER_PROCESS_TERMINATED,
content::Source<content::RenderProcessHost>(
content::RenderProcessHost::FromID(render_process_id))),
is_off_the_record_(profile->IsOffTheRecord()) {
// This is initialized by RenderProcessHostImpl. Do not add any non-trivial
// initialization here. Instead do it lazily when required.
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
}
bool SearchProviderInstallStateMessageFilter::OnMessageReceived(
const IPC::Message& message,
bool* message_was_ok) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
bool handled = true;
IPC_BEGIN_MESSAGE_MAP_EX(SearchProviderInstallStateMessageFilter, message,
*message_was_ok)
IPC_MESSAGE_HANDLER_DELAY_REPLY(
ChromeViewHostMsg_GetSearchProviderInstallState,
OnGetSearchProviderInstallState)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
SearchProviderInstallStateMessageFilter::
~SearchProviderInstallStateMessageFilter() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
}
search_provider::InstallState
SearchProviderInstallStateMessageFilter::GetSearchProviderInstallState(
const GURL& page_location,
const GURL& requested_host) {
GURL requested_origin = requested_host.GetOrigin();
// Do the security check before any others to avoid information leaks.
if (page_location.GetOrigin() != requested_origin)
return search_provider::DENIED;
// In incognito mode, no search information is exposed. (This check must be
// done after the security check or else a web site can detect that the
// user is in incognito mode just by doing a cross origin request.)
if (is_off_the_record_)
return search_provider::NOT_INSTALLED;
switch (provider_data_.GetInstallState(requested_origin)) {
case SearchProviderInstallData::NOT_INSTALLED:
return search_provider::NOT_INSTALLED;
case SearchProviderInstallData::INSTALLED_BUT_NOT_DEFAULT:
return search_provider::INSTALLED_BUT_NOT_DEFAULT;
case SearchProviderInstallData::INSTALLED_AS_DEFAULT:
return search_provider::INSTALLED_AS_DEFAULT;
}
NOTREACHED();
return search_provider::NOT_INSTALLED;
}
void
SearchProviderInstallStateMessageFilter::OnGetSearchProviderInstallState(
const GURL& page_location,
const GURL& requested_host,
IPC::Message* reply_msg) {
provider_data_.CallWhenLoaded(
base::Bind(
&SearchProviderInstallStateMessageFilter::
ReplyWithProviderInstallState,
weak_factory_.GetWeakPtr(),
page_location,
requested_host,
reply_msg));
}
void SearchProviderInstallStateMessageFilter::ReplyWithProviderInstallState(
const GURL& page_location,
const GURL& requested_host,
IPC::Message* reply_msg) {
DCHECK(reply_msg);
search_provider::InstallState install_state =
GetSearchProviderInstallState(page_location, requested_host);
ChromeViewHostMsg_GetSearchProviderInstallState::WriteReplyParams(
reply_msg,
install_state);
Send(reply_msg);
}
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