electron/shell/utility/atom_content_utility_client.cc

121 lines
3.8 KiB
C++

// 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/atom_content_utility_client.h"
#include <utility>
#include "base/command_line.h"
#include "base/no_destructor.h"
#include "base/threading/sequenced_task_runner_handle.h"
#include "content/public/utility/utility_thread.h"
#include "mojo/public/cpp/bindings/service_factory.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 "services/service_manager/sandbox/switches.h"
#if BUILDFLAG(ENABLE_PRINTING)
#include "components/services/pdf_compositor/pdf_compositor_impl.h"
#include "components/services/pdf_compositor/public/mojom/pdf_compositor.mojom.h"
#if defined(OS_WIN)
#include "chrome/services/printing/pdf_to_emf_converter_factory.h"
#include "chrome/services/printing/printing_service.h"
#include "chrome/services/printing/public/mojom/printing_service.mojom.h"
#include "chrome/utility/printing_handler.h"
#endif // defined(OS_WIN)
#endif // BUILDFLAG(ENABLE_PRINTING)
namespace electron {
namespace {
#if BUILDFLAG(ENABLE_PRINTING) && defined(OS_WIN)
auto RunPrintingService(
mojo::PendingReceiver<printing::mojom::PrintingService> receiver) {
return std::make_unique<printing::PrintingService>(std::move(receiver));
}
#endif
#if BUILDFLAG(ENABLE_PRINTING)
auto RunPdfCompositor(
mojo::PendingReceiver<printing::mojom::PdfCompositor> receiver) {
return std::make_unique<printing::PdfCompositorImpl>(
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));
}
} // namespace
AtomContentUtilityClient::AtomContentUtilityClient()
: utility_process_running_elevated_(false) {
#if BUILDFLAG(ENABLE_PRINTING) && defined(OS_WIN)
printing_handler_ = std::make_unique<printing::PrintingHandler>();
#endif
}
AtomContentUtilityClient::~AtomContentUtilityClient() = default;
// The guts of this came from the chromium implementation
// https://cs.chromium.org/chromium/src/chrome/utility/
// chrome_content_utility_client.cc?sq=package:chromium&dr=CSs&g=0&l=142
void AtomContentUtilityClient::ExposeInterfacesToBrowser(
mojo::BinderMap* binders) {
#if defined(OS_WIN)
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
utility_process_running_elevated_ = command_line->HasSwitch(
service_manager::switches::kNoSandboxAndElevatedPrivileges);
// If our process runs with elevated privileges, only add elevated Mojo
// interfaces to the BinderMap.
if (!utility_process_running_elevated_) {
#if BUILDFLAG(ENABLE_PRINTING)
binders->Add(
base::BindRepeating(printing::PdfToEmfConverterFactory::Create),
base::ThreadTaskRunnerHandle::Get());
#endif
}
#endif
}
bool AtomContentUtilityClient::OnMessageReceived(const IPC::Message& message) {
if (utility_process_running_elevated_)
return false;
#if BUILDFLAG(ENABLE_PRINTING) && defined(OS_WIN)
if (printing_handler_->OnMessageReceived(message))
return true;
#endif
return false;
}
mojo::ServiceFactory* AtomContentUtilityClient::GetMainThreadServiceFactory() {
static base::NoDestructor<mojo::ServiceFactory> factory {
#if BUILDFLAG(ENABLE_PRINTING)
RunPdfCompositor,
#if defined(OS_WIN)
RunPrintingService
#endif
#endif
};
return factory.get();
}
mojo::ServiceFactory* AtomContentUtilityClient::GetIOThreadServiceFactory() {
static base::NoDestructor<mojo::ServiceFactory> factory{RunProxyResolver};
return factory.get();
}
} // namespace electron