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// Copyright 2015 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 "extensions/browser/guest_view/extension_view/extension_view_guest.h"
#include "components/crx_file/id_util.h"
#include "components/guest_view/browser/guest_view_event.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/result_codes.h"
#include "extensions/browser/api/extensions_api_client.h"
#include "extensions/browser/bad_message.h"
#include "extensions/browser/guest_view/extension_view/extension_view_constants.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension_messages.h"
#include "extensions/strings/grit/extensions_strings.h"
using content::WebContents;
using guest_view::GuestViewBase;
using guest_view::GuestViewEvent;
using namespace extensions::api;
namespace extensions {
// static
const char ExtensionViewGuest::Type[] = "extensionview";
ExtensionViewGuest::ExtensionViewGuest(WebContents* owner_web_contents)
: GuestView<ExtensionViewGuest>(owner_web_contents) {}
ExtensionViewGuest::~ExtensionViewGuest() {
}
// static
GuestViewBase* ExtensionViewGuest::Create(WebContents* owner_web_contents) {
return new ExtensionViewGuest(owner_web_contents);
}
bool ExtensionViewGuest::NavigateGuest(const std::string& src,
bool force_navigation) {
GURL url = extension_url_.Resolve(src);
// If the URL is not valid, about:blank, or the same origin as the extension,
// then navigate to about:blank.
bool url_not_allowed = (url != GURL(url::kAboutBlankURL)) &&
(url.GetOrigin() != extension_url_.GetOrigin());
if (!url.is_valid() || url_not_allowed)
return NavigateGuest(url::kAboutBlankURL, true /* force_navigation */);
if (!force_navigation && (url_ == url))
return false;
web_contents()->GetRenderProcessHost()->FilterURL(false, &url);
web_contents()->GetController().LoadURL(url, content::Referrer(),
ui::PAGE_TRANSITION_AUTO_TOPLEVEL,
std::string());
url_ = url;
return true;
}
// GuestViewBase implementation.
bool ExtensionViewGuest::CanRunInDetachedState() const {
return true;
}
void ExtensionViewGuest::CreateWebContents(
const base::DictionaryValue& create_params,
const WebContentsCreatedCallback& callback) {
// Gets the extension ID.
std::string extension_id;
create_params.GetString(extensionview::kAttributeExtension, &extension_id);
if (!crx_file::id_util::IdIsValid(extension_id)) {
callback.Run(nullptr);
return;
}
// Gets the extension URL.
extension_url_ =
extensions::Extension::GetBaseURLFromExtensionId(extension_id);
if (!extension_url_.is_valid()) {
callback.Run(nullptr);
return;
}
content::SiteInstance* view_site_instance =
content::SiteInstance::CreateForURL(browser_context(),
extension_url_);
WebContents::CreateParams params(browser_context(), view_site_instance);
params.guest_delegate = this;
callback.Run(WebContents::Create(params));
}
void ExtensionViewGuest::DidInitialize(
const base::DictionaryValue& create_params) {
ExtensionsAPIClient::Get()->AttachWebContentsHelpers(web_contents());
ApplyAttributes(create_params);
}
void ExtensionViewGuest::DidAttachToEmbedder() {
ApplyAttributes(*attach_params());
}
const char* ExtensionViewGuest::GetAPINamespace() const {
return extensionview::kAPINamespace;
}
int ExtensionViewGuest::GetTaskPrefix() const {
return IDS_EXTENSION_TASK_MANAGER_EXTENSIONVIEW_TAG_PREFIX;
}
void ExtensionViewGuest::DidCommitProvisionalLoadForFrame(
content::RenderFrameHost* render_frame_host,
const GURL& url,
ui::PageTransition transition_type) {
if (render_frame_host->GetParent())
return;
url_ = url;
scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
args->SetString(guest_view::kUrl, url_.spec());
DispatchEventToView(
new GuestViewEvent(extensionview::kEventLoadCommit, args.Pass()));
}
void ExtensionViewGuest::DidNavigateMainFrame(
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) {
if (attached() && (params.url.GetOrigin() != url_.GetOrigin())) {
bad_message::ReceivedBadMessage(web_contents()->GetRenderProcessHost(),
bad_message::EVG_BAD_ORIGIN);
}
}
void ExtensionViewGuest::ApplyAttributes(const base::DictionaryValue& params) {
std::string src;
params.GetString(extensionview::kAttributeSrc, &src);
NavigateGuest(src, false /* force_navigation */);
}
} // namespace extensions
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