electron/shell/utility/electron_content_utility_cl...

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// Copyright (c) 2015 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/utility/electron_content_utility_client.h"
#include <utility>
#include "base/command_line.h"
#include "content/public/utility/utility_thread.h"
#include "mojo/public/cpp/bindings/binder_map.h"
#include "mojo/public/cpp/bindings/service_factory.h"
#include "printing/buildflags/buildflags.h"
#include "sandbox/policy/mojom/sandbox.mojom.h"
#include "sandbox/policy/sandbox_type.h"
#include "services/proxy_resolver/proxy_resolver_factory_impl.h"
#include "services/proxy_resolver/public/mojom/proxy_resolver.mojom.h"
#include "services/service_manager/public/cpp/service.h"
#include "shell/services/node/node_service.h"
#include "shell/services/node/public/mojom/node_service.mojom.h"
#if BUILDFLAG(IS_WIN)
#include "chrome/services/util_win/public/mojom/util_read_icon.mojom.h"
#include "chrome/services/util_win/public/mojom/util_win.mojom.h"
#include "chrome/services/util_win/util_read_icon.h"
#include "chrome/services/util_win/util_win_impl.h"
#endif // BUILDFLAG(IS_WIN)
#if BUILDFLAG(ENABLE_PRINTING)
#include "components/services/print_compositor/print_compositor_impl.h"
#include "components/services/print_compositor/public/mojom/print_compositor.mojom.h" // nogncheck
#endif // BUILDFLAG(ENABLE_PRINTING)
#if BUILDFLAG(ENABLE_PRINTING) && BUILDFLAG(IS_WIN)
#include "chrome/services/printing/pdf_to_emf_converter_factory.h"
#endif
#if BUILDFLAG(ENABLE_PRINT_PREVIEW) || \
(BUILDFLAG(ENABLE_PRINTING) && BUILDFLAG(IS_WIN))
#include "chrome/services/printing/printing_service.h"
#include "chrome/services/printing/public/mojom/printing_service.mojom.h"
#endif
namespace electron {
namespace {
#if BUILDFLAG(ENABLE_PRINT_PREVIEW) || \
(BUILDFLAG(ENABLE_PRINTING) && BUILDFLAG(IS_WIN))
auto RunPrintingService(
mojo::PendingReceiver<printing::mojom::PrintingService> receiver) {
return std::make_unique<printing::PrintingService>(std::move(receiver));
}
#endif
#if BUILDFLAG(IS_WIN)
auto RunWindowsIconReader(
mojo::PendingReceiver<chrome::mojom::UtilReadIcon> receiver) {
return std::make_unique<UtilReadIcon>(std::move(receiver));
}
auto RunWindowsUtility(mojo::PendingReceiver<chrome::mojom::UtilWin> receiver) {
return std::make_unique<UtilWinImpl>(std::move(receiver));
}
#endif
#if BUILDFLAG(ENABLE_PRINTING)
auto RunPrintCompositor(
mojo::PendingReceiver<printing::mojom::PrintCompositor> receiver) {
return std::make_unique<printing::PrintCompositorImpl>(
std::move(receiver), true /* initialize_environment */,
content::UtilityThread::Get()->GetIOTaskRunner());
}
#endif
auto RunProxyResolver(
mojo::PendingReceiver<proxy_resolver::mojom::ProxyResolverFactory>
receiver) {
return std::make_unique<proxy_resolver::ProxyResolverFactoryImpl>(
std::move(receiver));
}
auto RunNodeService(mojo::PendingReceiver<node::mojom::NodeService> receiver) {
return std::make_unique<electron::NodeService>(std::move(receiver));
}
} // namespace
ElectronContentUtilityClient::ElectronContentUtilityClient() = default;
ElectronContentUtilityClient::~ElectronContentUtilityClient() = default;
// The guts of this came from the chromium implementation
// https://source.chromium.org/chromium/chromium/src/+/main:chrome/utility/chrome_content_utility_client.cc
void ElectronContentUtilityClient::ExposeInterfacesToBrowser(
mojo::BinderMap* binders) {
#if BUILDFLAG(IS_WIN)
const auto& cmd_line = *base::CommandLine::ForCurrentProcess();
auto sandbox_type = sandbox::policy::SandboxTypeFromCommandLine(cmd_line);
utility_process_running_elevated_ =
sandbox_type == sandbox::mojom::Sandbox::kNoSandboxAndElevatedPrivileges;
#endif
// If our process runs with elevated privileges, only add elevated Mojo
// interfaces to the BinderMap.
if (!utility_process_running_elevated_) {
#if BUILDFLAG(ENABLE_PRINTING) && BUILDFLAG(IS_WIN)
binders->Add<printing::mojom::PdfToEmfConverterFactory>(
base::BindRepeating(printing::PdfToEmfConverterFactory::Create),
base::SingleThreadTaskRunner::GetCurrentDefault());
#endif
}
}
void ElectronContentUtilityClient::RegisterMainThreadServices(
mojo::ServiceFactory& services) {
#if BUILDFLAG(IS_WIN)
services.Add(RunWindowsIconReader);
services.Add(RunWindowsUtility);
#endif
#if BUILDFLAG(ENABLE_PRINTING)
services.Add(RunPrintCompositor);
#endif
#if BUILDFLAG(ENABLE_PRINT_PREVIEW) || \
(BUILDFLAG(ENABLE_PRINTING) && BUILDFLAG(IS_WIN))
services.Add(RunPrintingService);
#endif
services.Add(RunNodeService);
}
void ElectronContentUtilityClient::RegisterIOThreadServices(
mojo::ServiceFactory& services) {
services.Add(RunProxyResolver);
}
} // namespace electron