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// Copyright 2018 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 "fuchsia/engine/browser/context_impl.h"
#include <lib/zx/channel.h>
#include <memory>
#include <utility>
#include "base/bind.h"
#include "base/fuchsia/fuchsia_logging.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/storage_partition.h"
#include "content/public/browser/web_contents.h"
#include "fuchsia/base/mem_buffer_util.h"
#include "fuchsia/cast_streaming/public/cast_streaming_session.h"
#include "fuchsia/engine/browser/frame_impl.h"
#include "fuchsia/engine/browser/web_engine_devtools_controller.h"
#include "third_party/blink/public/common/web_preferences/web_preferences.h"
#include "third_party/blink/public/mojom/webpreferences/web_preferences.mojom.h"
ContextImpl::ContextImpl(content::BrowserContext* browser_context,
WebEngineDevToolsController* devtools_controller)
: browser_context_(browser_context),
devtools_controller_(devtools_controller),
cookie_manager_(base::BindRepeating(
&content::StoragePartition::GetNetworkContext,
base::Unretained(content::BrowserContext::GetDefaultStoragePartition(
browser_context_)))) {
DCHECK(browser_context_);
DCHECK(devtools_controller_);
devtools_controller_->OnContextCreated();
cast_streaming::CastStreamingSession::SetNetworkContextGetter(
base::BindRepeating(&ContextImpl::GetNetworkContext,
base::Unretained(this)));
}
ContextImpl::~ContextImpl() {
devtools_controller_->OnContextDestroyed();
}
void ContextImpl::DestroyFrame(FrameImpl* frame) {
auto iter = frames_.find(frame);
DCHECK(iter != frames_.end());
frames_.erase(iter);
}
bool ContextImpl::IsJavaScriptInjectionAllowed() {
return allow_javascript_injection_;
}
void ContextImpl::CreateFrame(
fidl::InterfaceRequest<fuchsia::web::Frame> frame) {
CreateFrameWithParams(fuchsia::web::CreateFrameParams(), std::move(frame));
}
void ContextImpl::CreateFrameWithParams(
fuchsia::web::CreateFrameParams params,
fidl::InterfaceRequest<fuchsia::web::Frame> frame) {
// FrameImpl clones the params used to create it when creating popup Frames.
// Ensure the params can be cloned to avoid problems when handling popups.
// TODO(fxbug.dev/65750): Consider removing this restriction if clients
// become responsible for providing parameters for [each] popup.
fuchsia::web::CreateFrameParams cloned_params;
zx_status_t status = params.Clone(&cloned_params);
if (status != ZX_OK) {
ZX_LOG(ERROR, status) << "CreateFrameParams Clone() failed";
frame.Close(ZX_ERR_INVALID_ARGS);
return;
}
// Create a WebContents to host the new Frame.
content::WebContents::CreateParams create_params(browser_context_, nullptr);
create_params.initially_hidden = true;
auto web_contents = content::WebContents::Create(create_params);
CreateFrameForWebContents(std::move(web_contents), std::move(params),
std::move(frame));
}
void ContextImpl::CreateFrameForWebContents(
std::unique_ptr<content::WebContents> web_contents,
fuchsia::web::CreateFrameParams params,
fidl::InterfaceRequest<fuchsia::web::Frame> frame_request) {
DCHECK(frame_request.is_valid());
blink::web_pref::WebPreferences web_preferences =
web_contents->GetOrCreateWebPreferences();
// Register the new Frame with the DevTools controller. The controller will
// reject registration if user-debugging is requested, but it is not enabled
// in the controller.
const bool user_debugging_requested =
params.has_enable_remote_debugging() && params.enable_remote_debugging();
if (!devtools_controller_->OnFrameCreated(web_contents.get(),
user_debugging_requested)) {
frame_request.Close(ZX_ERR_INVALID_ARGS);
return;
}
// |params.debug_name| is not currently supported.
// TODO(crbug.com/1051533): Determine whether it is still needed.
// REQUIRE_USER_ACTIVATION is the default per the FIDL API.
web_preferences.autoplay_policy =
blink::mojom::AutoplayPolicy::kDocumentUserActivationRequired;
if (params.has_autoplay_policy()) {
switch (params.autoplay_policy()) {
case fuchsia::web::AutoplayPolicy::ALLOW:
web_preferences.autoplay_policy =
blink::mojom::AutoplayPolicy::kNoUserGestureRequired;
break;
case fuchsia::web::AutoplayPolicy::REQUIRE_USER_ACTIVATION:
web_preferences.autoplay_policy =
blink::mojom::AutoplayPolicy::kDocumentUserActivationRequired;
break;
}
}
web_contents->SetWebPreferences(web_preferences);
// Verify the explicit sites filter error page content. If the parameter is
// present, it will be provided to the FrameImpl after it is created below.
base::Optional<std::string> explicit_sites_filter_error_page;
if (params.has_explicit_sites_filter_error_page()) {
explicit_sites_filter_error_page.emplace();
if (!cr_fuchsia::StringFromMemData(
params.explicit_sites_filter_error_page(),
&explicit_sites_filter_error_page.value())) {
frame_request.Close(ZX_ERR_INVALID_ARGS);
return;
}
}
// FrameImpl clones the params used to create it when creating popup Frames.
// Ensure the params can be cloned to avoid problems when creating popups.
// TODO(http://fxbug.dev/65750): Remove this limitation once a soft migration
// to a new solution has been completed.
fuchsia::web::CreateFrameParams cloned_params;
zx_status_t status = params.Clone(&cloned_params);
if (status != ZX_OK) {
ZX_LOG(ERROR, status) << "CreateFrameParams clone failed";
frame_request.Close(ZX_ERR_INVALID_ARGS);
return;
}
// Wrap the WebContents into a FrameImpl owned by |this|.
auto frame_impl =
std::make_unique<FrameImpl>(std::move(web_contents), this,
std::move(params), std::move(frame_request));
if (explicit_sites_filter_error_page) {
frame_impl->EnableExplicitSitesFilter(
std::move(*explicit_sites_filter_error_page));
}
frames_.insert(std::move(frame_impl));
}
void ContextImpl::GetCookieManager(
fidl::InterfaceRequest<fuchsia::web::CookieManager> request) {
cookie_manager_bindings_.AddBinding(&cookie_manager_, std::move(request));
}
void ContextImpl::GetRemoteDebuggingPort(
GetRemoteDebuggingPortCallback callback) {
devtools_controller_->GetDevToolsPort(base::BindOnce(
[](GetRemoteDebuggingPortCallback callback, uint16_t port) {
fuchsia::web::Context_GetRemoteDebuggingPort_Result result;
if (port == 0) {
result.set_err(
fuchsia::web::ContextError::REMOTE_DEBUGGING_PORT_NOT_OPENED);
} else {
fuchsia::web::Context_GetRemoteDebuggingPort_Response response;
response.port = port;
result.set_response(std::move(response));
}
callback(std::move(result));
},
std::move(callback)));
}
FrameImpl* ContextImpl::GetFrameImplForTest(
fuchsia::web::FramePtr* frame_ptr) const {
DCHECK(frame_ptr);
// Find the FrameImpl whose channel is connected to |frame_ptr| by inspecting
// the related_koids of active FrameImpls.
zx_info_handle_basic_t handle_info{};
zx_status_t status = frame_ptr->channel().get_info(
ZX_INFO_HANDLE_BASIC, &handle_info, sizeof(zx_info_handle_basic_t),
nullptr, nullptr);
ZX_CHECK(status == ZX_OK, status) << "zx_object_get_info";
zx_handle_t client_handle_koid = handle_info.koid;
for (const std::unique_ptr<FrameImpl>& frame : frames_) {
status = frame->GetBindingChannelForTest()->get_info(
ZX_INFO_HANDLE_BASIC, &handle_info, sizeof(zx_info_handle_basic_t),
nullptr, nullptr);
ZX_CHECK(status == ZX_OK, status) << "zx_object_get_info";
if (client_handle_koid == handle_info.related_koid)
return frame.get();
}
return nullptr;
}
network::mojom::NetworkContext* ContextImpl::GetNetworkContext() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
return content::BrowserContext::GetDefaultStoragePartition(browser_context_)
->GetNetworkContext();
}
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