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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/shell/app/shell_main_delegate.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/no_destructor.h"
#include "base/notimplemented.h"
#include "base/path_service.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "content/public/browser/browser_main_runner.h"
#include "content/public/common/content_switches.h"
#include "content/shell/common/shell_paths.h"
#include "content/shell/common/shell_switches.h"
#include "extensions/common/extension_paths.h"
#include "extensions/shell/browser/default_shell_browser_main_delegate.h"
#include "extensions/shell/browser/shell_content_browser_client.h"
#include "extensions/shell/common/shell_content_client.h"
#include "extensions/shell/renderer/shell_content_renderer_client.h"
#include "ui/base/resource/resource_bundle.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "ash/constants/ash_paths.h"
#include "chromeos/dbus/constants/dbus_paths.h"
#endif
#if BUILDFLAG(IS_WIN)
#include "base/base_paths_win.h"
#include "base/process/process_info.h"
#elif BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
#include "base/nix/xdg_util.h"
#elif BUILDFLAG(IS_MAC)
#include "base/base_paths_mac.h"
#endif
namespace {
// Returns the same directory that the browser context will later be
// initialized with.
base::FilePath GetDataPath() {
// TODO(michaelpg): Use base::PathService to initialize the data path
// earlier, instead of reading the switch both here and in
// ShellBrowserContext::InitWhileIOAllowed().
base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
if (cmd_line->HasSwitch(switches::kContentShellUserDataDir)) {
return cmd_line->GetSwitchValuePath(switches::kContentShellUserDataDir);
}
base::FilePath data_dir;
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
std::unique_ptr<base::Environment> env(base::Environment::Create());
data_dir = base::nix::GetXDGDirectory(
env.get(), base::nix::kXdgConfigHomeEnvVar, base::nix::kDotConfigDir);
#elif BUILDFLAG(IS_WIN)
CHECK(base::PathService::Get(base::DIR_LOCAL_APP_DATA, &data_dir));
#elif BUILDFLAG(IS_MAC)
CHECK(base::PathService::Get(base::DIR_APP_DATA, &data_dir));
#else
NOTIMPLEMENTED();
#endif
// TODO(michaelpg): Use a different directory for app_shell.
// See crbug.com/724725.
return data_dir.Append(FILE_PATH_LITERAL("content_shell"));
}
void InitLogging() {
uint32_t logging_dest = logging::LOG_TO_ALL;
base::FilePath log_path;
if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kLogFile)) {
log_path = base::CommandLine::ForCurrentProcess()->GetSwitchValuePath(
switches::kLogFile);
#if BUILDFLAG(IS_WIN)
} else if (base::IsCurrentProcessInAppContainer()) {
// Sandboxed appcontainer processes are unable to resolve the default log
// file path without asserting.
logging_dest = (logging_dest & ~logging::LOG_TO_FILE);
#endif
} else {
log_path = GetDataPath().Append(FILE_PATH_LITERAL("app_shell.log"));
}
// Set up log initialization settings.
logging::LoggingSettings settings;
settings.logging_dest = logging_dest;
settings.log_file_path = log_path.value().c_str();
// Replace the old log file if this is the first process.
std::string process_type =
base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
switches::kProcessType);
settings.delete_old = process_type.empty() ? logging::DELETE_OLD_LOG_FILE
: logging::APPEND_TO_OLD_LOG_FILE;
logging::InitLogging(settings);
logging::SetLogItems(true, true, true, true);
}
// Returns the path to the extensions_shell_and_test.pak file.
base::FilePath GetResourcesPakFilePath() {
base::FilePath extensions_shell_and_test_pak_path;
base::PathService::Get(base::DIR_ASSETS, &extensions_shell_and_test_pak_path);
extensions_shell_and_test_pak_path =
extensions_shell_and_test_pak_path.AppendASCII(
"extensions_shell_and_test.pak");
return extensions_shell_and_test_pak_path;
}
} // namespace
namespace extensions {
ShellMainDelegate::ShellMainDelegate() {
}
ShellMainDelegate::~ShellMainDelegate() {
}
std::optional<int> ShellMainDelegate::BasicStartupComplete() {
InitLogging();
#if BUILDFLAG(IS_CHROMEOS)
ash::RegisterPathProvider();
chromeos::dbus_paths::RegisterPathProvider();
#endif
extensions::RegisterPathProvider();
content::RegisterShellPathProvider();
return std::nullopt;
}
void ShellMainDelegate::PreSandboxStartup() {
std::string process_type =
base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
switches::kProcessType);
if (ProcessNeedsResourceBundle(process_type))
ui::ResourceBundle::InitSharedInstanceWithPakPath(
GetResourcesPakFilePath());
}
content::ContentClient* ShellMainDelegate::CreateContentClient() {
content_client_ = std::make_unique<ShellContentClient>();
return content_client_.get();
}
content::ContentBrowserClient* ShellMainDelegate::CreateContentBrowserClient() {
browser_client_ = std::make_unique<ShellContentBrowserClient>(
new DefaultShellBrowserMainDelegate);
return browser_client_.get();
}
content::ContentRendererClient*
ShellMainDelegate::CreateContentRendererClient() {
renderer_client_ = std::make_unique<ShellContentRendererClient>();
return renderer_client_.get();
}
void ShellMainDelegate::ProcessExiting(const std::string& process_type) {
logging::CloseLogFile();
}
#if BUILDFLAG(USE_ZYGOTE)
void ShellMainDelegate::ZygoteStarting(
std::vector<std::unique_ptr<content::ZygoteForkDelegate>>* delegates) {
}
#endif // BUILDFLAG(USE_ZYGOTE)
// static
bool ShellMainDelegate::ProcessNeedsResourceBundle(
const std::string& process_type) {
// The browser process has no process type flag, but needs resources.
// On Linux the zygote process opens the resources for the renderers.
return process_type.empty() || process_type == switches::kZygoteProcess ||
process_type == switches::kRendererProcess ||
#if BUILDFLAG(IS_MAC)
process_type == switches::kGpuProcess ||
#endif
process_type == switches::kUtilityProcess;
}
} // namespace extensions
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