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cef/libcef/common/alloy/alloy_main_delegate.cc

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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 "libcef/common/alloy/alloy_main_delegate.h"
#include <tuple>
#include "libcef/browser/alloy/alloy_browser_context.h"
#include "libcef/browser/alloy/alloy_content_browser_client.h"
#include "libcef/common/cef_switches.h"
#include "libcef/common/command_line_impl.h"
#include "libcef/common/crash_reporting.h"
#include "libcef/common/extensions/extensions_util.h"
#include "libcef/common/resource_util.h"
#include "libcef/renderer/alloy/alloy_content_renderer_client.h"
#include "base/base_switches.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/path_service.h"
#include "base/stl_util.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/synchronization/waitable_event.h"
#include "chrome/browser/browser_process.h"
#include "chrome/child/pdf_child_init.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/utility/chrome_content_utility_client.h"
#include "components/component_updater/component_updater_paths.h"
#include "components/content_settings/core/common/content_settings_pattern.h"
#include "components/embedder_support/switches.h"
#include "components/viz/common/features.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/main_function_params.h"
#include "content/public/common/url_constants.h"
#include "extensions/common/constants.h"
#include "net/base/features.h"
#include "sandbox/policy/switches.h"
#include "services/network/public/cpp/features.h"
#include "third_party/blink/public/common/switches.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/ui_base_features.h"
#include "ui/base/ui_base_paths.h"
#include "ui/base/ui_base_switches.h"
#if BUILDFLAG(IS_MAC)
#include "libcef/common/util_mac.h"
#elif BUILDFLAG(IS_POSIX)
#include "libcef/common/util_linux.h"
#endif
#if BUILDFLAG(IS_WIN)
#include "ui/base/resource/resource_bundle_win.h"
#endif
namespace {
const char* const kNonWildcardDomainNonPortSchemes[] = {
extensions::kExtensionScheme, content::kChromeDevToolsScheme,
content::kChromeUIScheme, content::kChromeUIUntrustedScheme};
const size_t kNonWildcardDomainNonPortSchemesSize =
std::size(kNonWildcardDomainNonPortSchemes);
} // namespace
AlloyMainDelegate::AlloyMainDelegate(CefMainRunnerHandler* runner,
CefSettings* settings,
CefRefPtr<CefApp> application)
: runner_(runner), settings_(settings), application_(application) {
#if BUILDFLAG(IS_LINUX)
resource_util::OverrideAssetPath();
#endif
}
AlloyMainDelegate::~AlloyMainDelegate() {}
absl::optional<int> AlloyMainDelegate::PreBrowserMain() {
runner_->PreBrowserMain();
return absl::nullopt;
}
absl::optional<int> AlloyMainDelegate::BasicStartupComplete() {
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
std::string process_type =
command_line->GetSwitchValueASCII(switches::kProcessType);
#if BUILDFLAG(IS_POSIX)
// Read the crash configuration file. On Windows this is done from chrome_elf.
crash_reporting::BasicStartupComplete(command_line);
#endif
if (process_type.empty()) {
// In the browser process. Populate the global command-line object.
if (settings_->command_line_args_disabled) {
// Remove any existing command-line arguments.
base::CommandLine::StringVector argv;
argv.push_back(command_line->GetProgram().value());
command_line->InitFromArgv(argv);
const base::CommandLine::SwitchMap& map = command_line->GetSwitches();
const_cast<base::CommandLine::SwitchMap*>(&map)->clear();
}
bool no_sandbox = settings_->no_sandbox ? true : false;
if (settings_->browser_subprocess_path.length > 0) {
base::FilePath file_path =
base::FilePath(CefString(&settings_->browser_subprocess_path));
if (!file_path.empty()) {
command_line->AppendSwitchPath(switches::kBrowserSubprocessPath,
file_path);
#if BUILDFLAG(IS_WIN)
// The sandbox is not supported when using a separate subprocess
// executable on Windows.
no_sandbox = true;
#endif
}
}
#if BUILDFLAG(IS_MAC)
if (settings_->framework_dir_path.length > 0) {
base::FilePath file_path =
base::FilePath(CefString(&settings_->framework_dir_path));
if (!file_path.empty()) {
command_line->AppendSwitchPath(switches::kFrameworkDirPath, file_path);
}
}
if (settings_->main_bundle_path.length > 0) {
base::FilePath file_path =
base::FilePath(CefString(&settings_->main_bundle_path));
if (!file_path.empty()) {
command_line->AppendSwitchPath(switches::kMainBundlePath, file_path);
}
}
#endif
if (no_sandbox) {
command_line->AppendSwitch(sandbox::policy::switches::kNoSandbox);
}
if (settings_->user_agent.length > 0) {
command_line->AppendSwitchASCII(
embedder_support::kUserAgent,
CefString(&settings_->user_agent).ToString());
} else if (settings_->user_agent_product.length > 0) {
command_line->AppendSwitchASCII(
switches::kUserAgentProductAndVersion,
CefString(&settings_->user_agent_product).ToString());
}
if (settings_->locale.length > 0) {
command_line->AppendSwitchASCII(switches::kLang,
CefString(&settings_->locale).ToString());
} else if (!command_line->HasSwitch(switches::kLang)) {
command_line->AppendSwitchASCII(switches::kLang, "en-US");
}
base::FilePath log_file;
bool has_log_file_cmdline = false;
if (settings_->log_file.length > 0) {
log_file = base::FilePath(CefString(&settings_->log_file));
}
if (log_file.empty() && command_line->HasSwitch(switches::kLogFile)) {
log_file = command_line->GetSwitchValuePath(switches::kLogFile);
if (!log_file.empty()) {
has_log_file_cmdline = true;
}
}
if (log_file.empty()) {
log_file = resource_util::GetDefaultLogFilePath();
}
DCHECK(!log_file.empty());
if (!has_log_file_cmdline) {
command_line->AppendSwitchPath(switches::kLogFile, log_file);
}
if (settings_->log_severity != LOGSEVERITY_DEFAULT) {
std::string log_severity;
switch (settings_->log_severity) {
case LOGSEVERITY_VERBOSE:
log_severity = switches::kLogSeverity_Verbose;
break;
case LOGSEVERITY_INFO:
log_severity = switches::kLogSeverity_Info;
break;
case LOGSEVERITY_WARNING:
log_severity = switches::kLogSeverity_Warning;
break;
case LOGSEVERITY_ERROR:
log_severity = switches::kLogSeverity_Error;
break;
case LOGSEVERITY_FATAL:
log_severity = switches::kLogSeverity_Fatal;
break;
case LOGSEVERITY_DISABLE:
log_severity = switches::kLogSeverity_Disable;
break;
default:
break;
}
if (!log_severity.empty()) {
command_line->AppendSwitchASCII(switches::kLogSeverity, log_severity);
}
}
if (settings_->javascript_flags.length > 0) {
command_line->AppendSwitchASCII(
blink::switches::kJavaScriptFlags,
CefString(&settings_->javascript_flags).ToString());
}
if (settings_->pack_loading_disabled) {
command_line->AppendSwitch(switches::kDisablePackLoading);
} else {
if (settings_->resources_dir_path.length > 0) {
base::FilePath file_path =
base::FilePath(CefString(&settings_->resources_dir_path));
if (!file_path.empty()) {
command_line->AppendSwitchPath(switches::kResourcesDirPath,
file_path);
}
}
if (settings_->locales_dir_path.length > 0) {
base::FilePath file_path =
base::FilePath(CefString(&settings_->locales_dir_path));
if (!file_path.empty()) {
command_line->AppendSwitchPath(switches::kLocalesDirPath, file_path);
}
}
}
if (settings_->remote_debugging_port >= 1024 &&
settings_->remote_debugging_port <= 65535) {
command_line->AppendSwitchASCII(
switches::kRemoteDebuggingPort,
base::NumberToString(settings_->remote_debugging_port));
}
if (settings_->uncaught_exception_stack_size > 0) {
command_line->AppendSwitchASCII(
switches::kUncaughtExceptionStackSize,
base::NumberToString(settings_->uncaught_exception_stack_size));
}
std::vector<std::string> disable_features;
#if BUILDFLAG(IS_WIN)
if (features::kCalculateNativeWinOcclusion.default_state ==
base::FEATURE_ENABLED_BY_DEFAULT) {
// TODO: Add support for occlusion detection in combination with native
// parent windows (see issue #2805).
disable_features.push_back(features::kCalculateNativeWinOcclusion.name);
}
#endif // BUILDFLAG(IS_WIN)
if (features::kBackForwardCache.default_state ==
base::FEATURE_ENABLED_BY_DEFAULT) {
// Disable BackForwardCache globally so that
// blink::RuntimeEnabledFeatures::BackForwardCacheEnabled reports the
// correct value in the renderer process (see issue #3374).
disable_features.push_back(features::kBackForwardCache.name);
}
if (!disable_features.empty()) {
DCHECK(!base::FeatureList::GetInstance());
std::string disable_features_str =
command_line->GetSwitchValueASCII(switches::kDisableFeatures);
for (auto feature_str : disable_features) {
if (!disable_features_str.empty()) {
disable_features_str += ",";
}
disable_features_str += feature_str;
}
command_line->AppendSwitchASCII(switches::kDisableFeatures,
disable_features_str);
}
}
if (application_) {
// Give the application a chance to view/modify the command line.
CefRefPtr<CefCommandLineImpl> commandLinePtr(
new CefCommandLineImpl(command_line, false, false));
application_->OnBeforeCommandLineProcessing(CefString(process_type),
commandLinePtr.get());
std::ignore = commandLinePtr->Detach(nullptr);
}
// Initialize logging.
logging::LoggingSettings log_settings;
const base::FilePath& log_file =
command_line->GetSwitchValuePath(switches::kLogFile);
DCHECK(!log_file.empty());
log_settings.log_file_path = log_file.value().c_str();
log_settings.lock_log = logging::DONT_LOCK_LOG_FILE;
log_settings.delete_old = logging::APPEND_TO_OLD_LOG_FILE;
logging::LogSeverity log_severity = logging::LOG_INFO;
std::string log_severity_str =
command_line->GetSwitchValueASCII(switches::kLogSeverity);
if (!log_severity_str.empty()) {
if (base::EqualsCaseInsensitiveASCII(log_severity_str,
switches::kLogSeverity_Verbose)) {
log_severity = logging::LOG_VERBOSE;
} else if (base::EqualsCaseInsensitiveASCII(
log_severity_str, switches::kLogSeverity_Warning)) {
log_severity = logging::LOG_WARNING;
} else if (base::EqualsCaseInsensitiveASCII(log_severity_str,
switches::kLogSeverity_Error)) {
log_severity = logging::LOG_ERROR;
} else if (base::EqualsCaseInsensitiveASCII(log_severity_str,
switches::kLogSeverity_Fatal)) {
log_severity = logging::LOG_FATAL;
} else if (base::EqualsCaseInsensitiveASCII(
log_severity_str, switches::kLogSeverity_Disable)) {
log_severity = LOGSEVERITY_DISABLE;
}
}
if (log_severity == LOGSEVERITY_DISABLE) {
log_settings.logging_dest = logging::LOG_NONE;
// By default, ERROR and FATAL messages will always be output to stderr due
// to the kAlwaysPrintErrorLevel value in base/logging.cc. We change the log
// level here so that only FATAL messages are output.
logging::SetMinLogLevel(logging::LOG_FATAL);
} else {
log_settings.logging_dest = logging::LOG_TO_ALL;
logging::SetMinLogLevel(log_severity);
}
logging::InitLogging(log_settings);
ContentSettingsPattern::SetNonWildcardDomainNonPortSchemes(
kNonWildcardDomainNonPortSchemes, kNonWildcardDomainNonPortSchemesSize);
content::SetContentClient(&content_client_);
#if BUILDFLAG(IS_MAC)
util_mac::BasicStartupComplete();
#endif
return absl::nullopt;
}
void AlloyMainDelegate::PreSandboxStartup() {
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
const std::string& process_type =
command_line->GetSwitchValueASCII(switches::kProcessType);
if (process_type.empty()) {
// Only override these paths when executing the main process.
#if BUILDFLAG(IS_MAC)
util_mac::PreSandboxStartup();
#elif BUILDFLAG(IS_POSIX)
util_linux::PreSandboxStartup();
#endif
resource_util::OverrideDefaultDownloadDir();
}
resource_util::OverrideUserDataDir(settings_, command_line);
if (command_line->HasSwitch(switches::kDisablePackLoading)) {
resource_bundle_delegate_.set_pack_loading_disabled(true);
}
// Initialize crash reporting state for this process/module.
// chrome::DIR_CRASH_DUMPS must be configured before calling this function.
crash_reporting::PreSandboxStartup(*command_line, process_type);
// Register the component_updater PathProvider.
component_updater::RegisterPathProvider(chrome::DIR_COMPONENTS,
chrome::DIR_INTERNAL_PLUGINS,
chrome::DIR_USER_DATA);
InitializeResourceBundle();
MaybePatchGdiGetFontData();
}
absl::variant<int, content::MainFunctionParams> AlloyMainDelegate::RunProcess(
const std::string& process_type,
content::MainFunctionParams main_function_params) {
if (process_type.empty()) {
return runner_->RunMainProcess(std::move(main_function_params));
}
return std::move(main_function_params);
}
void AlloyMainDelegate::ProcessExiting(const std::string& process_type) {
ui::ResourceBundle::CleanupSharedInstance();
}
#if BUILDFLAG(IS_LINUX)
void AlloyMainDelegate::ZygoteForked() {
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
const std::string& process_type =
command_line->GetSwitchValueASCII(switches::kProcessType);
// Initialize crash reporting state for the newly forked process.
crash_reporting::ZygoteForked(command_line, process_type);
}
#endif
content::ContentBrowserClient* AlloyMainDelegate::CreateContentBrowserClient() {
browser_client_.reset(new AlloyContentBrowserClient);
return browser_client_.get();
}
content::ContentRendererClient*
AlloyMainDelegate::CreateContentRendererClient() {
renderer_client_.reset(new AlloyContentRendererClient);
return renderer_client_.get();
}
content::ContentUtilityClient* AlloyMainDelegate::CreateContentUtilityClient() {
utility_client_.reset(new ChromeContentUtilityClient);
return utility_client_.get();
}
CefRefPtr<CefRequestContext> AlloyMainDelegate::GetGlobalRequestContext() {
if (!browser_client_) {
return nullptr;
}
return browser_client_->request_context();
}
CefBrowserContext* AlloyMainDelegate::CreateNewBrowserContext(
const CefRequestContextSettings& settings,
base::OnceClosure initialized_cb) {
auto context = new AlloyBrowserContext(settings);
context->Initialize();
std::move(initialized_cb).Run();
return context;
}
scoped_refptr<base::SingleThreadTaskRunner>
AlloyMainDelegate::GetBackgroundTaskRunner() {
if (browser_client_) {
return browser_client_->background_task_runner();
}
return nullptr;
}
scoped_refptr<base::SingleThreadTaskRunner>
AlloyMainDelegate::GetUserVisibleTaskRunner() {
if (browser_client_) {
return browser_client_->user_visible_task_runner();
}
return nullptr;
}
scoped_refptr<base::SingleThreadTaskRunner>
AlloyMainDelegate::GetUserBlockingTaskRunner() {
if (browser_client_) {
return browser_client_->user_blocking_task_runner();
}
return nullptr;
}
scoped_refptr<base::SingleThreadTaskRunner>
AlloyMainDelegate::GetRenderTaskRunner() {
if (renderer_client_) {
return renderer_client_->render_task_runner();
}
return nullptr;
}
scoped_refptr<base::SingleThreadTaskRunner>
AlloyMainDelegate::GetWebWorkerTaskRunner() {
if (renderer_client_) {
return renderer_client_->GetCurrentTaskRunner();
}
return nullptr;
}
void AlloyMainDelegate::InitializeResourceBundle() {
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
base::FilePath resources_pak_file, chrome_100_percent_pak_file,
chrome_200_percent_pak_file, locales_dir;
base::FilePath resources_dir;
if (command_line->HasSwitch(switches::kResourcesDirPath)) {
resources_dir =
command_line->GetSwitchValuePath(switches::kResourcesDirPath);
}
if (resources_dir.empty()) {
resources_dir = resource_util::GetResourcesDir();
}
if (!resources_dir.empty()) {
base::PathService::Override(chrome::DIR_RESOURCES, resources_dir);
}
if (!resource_bundle_delegate_.pack_loading_disabled()) {
if (!resources_dir.empty()) {
CHECK(resources_dir.IsAbsolute());
resources_pak_file =
resources_dir.Append(FILE_PATH_LITERAL("resources.pak"));
chrome_100_percent_pak_file =
resources_dir.Append(FILE_PATH_LITERAL("chrome_100_percent.pak"));
chrome_200_percent_pak_file =
resources_dir.Append(FILE_PATH_LITERAL("chrome_200_percent.pak"));
}
if (command_line->HasSwitch(switches::kLocalesDirPath)) {
locales_dir = command_line->GetSwitchValuePath(switches::kLocalesDirPath);
}
if (!locales_dir.empty()) {
base::PathService::Override(ui::DIR_LOCALES, locales_dir);
}
}
#if BUILDFLAG(IS_WIN)
// From chrome/app/chrome_main_delegate.cc
// Throbber icons and cursors are still stored in chrome.dll,
// this can be killed once those are merged into resources.pak. See
// GlassBrowserFrameView::InitThrobberIcons(), https://crbug.com/368327 and
// https://crbug.com/1178117.
auto module_handle =
::GetModuleHandle(CefAppManager::Get()->GetResourceDllName());
if (!module_handle) {
module_handle = ::GetModuleHandle(NULL);
}
ui::SetResourcesDataDLL(module_handle);
#endif
std::string locale = command_line->GetSwitchValueASCII(switches::kLang);
DCHECK(!locale.empty());
const std::string loaded_locale =
ui::ResourceBundle::InitSharedInstanceWithLocale(
locale, &resource_bundle_delegate_,
ui::ResourceBundle::LOAD_COMMON_RESOURCES);
if (!loaded_locale.empty() && g_browser_process) {
g_browser_process->SetApplicationLocale(loaded_locale);
}
ui::ResourceBundle& resource_bundle = ui::ResourceBundle::GetSharedInstance();
if (!resource_bundle_delegate_.pack_loading_disabled()) {
if (loaded_locale.empty()) {
LOG(ERROR) << "Could not load locale pak for " << locale;
}
resource_bundle_delegate_.set_allow_pack_file_load(true);
if (base::PathExists(resources_pak_file)) {
resource_bundle.AddDataPackFromPath(resources_pak_file,
ui::kScaleFactorNone);
} else {
LOG(ERROR) << "Could not load resources.pak";
}
// Always load the 1x data pack first as the 2x data pack contains both 1x
// and 2x images. The 1x data pack only has 1x images, thus passes in an
// accurate scale factor to gfx::ImageSkia::AddRepresentation.
if (resource_util::IsScaleFactorSupported(ui::k100Percent)) {
if (base::PathExists(chrome_100_percent_pak_file)) {
resource_bundle.AddDataPackFromPath(chrome_100_percent_pak_file,
ui::k100Percent);
} else {
LOG(ERROR) << "Could not load chrome_100_percent.pak";
}
}
if (resource_util::IsScaleFactorSupported(ui::k200Percent)) {
if (base::PathExists(chrome_200_percent_pak_file)) {
resource_bundle.AddDataPackFromPath(chrome_200_percent_pak_file,
ui::k200Percent);
} else {
LOG(ERROR) << "Could not load chrome_200_percent.pak";
}
}
// Skip the default pak file loading that would otherwise occur in
// ResourceBundle::LoadChromeResources().
resource_bundle_delegate_.set_allow_pack_file_load(false);
}
}
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