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electron_browser_client.cc
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electron_browser_client.cc
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// Copyright (c) 2013 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/browser/electron_browser_client.h"
#if defined(OS_WIN)
#include <shlobj.h>
#endif
#include <memory>
#include <utility>
#include "base/base_switches.h"
#include "base/command_line.h"
#include "base/environment.h"
#include "base/files/file_util.h"
#include "base/json/json_reader.h"
#include "base/lazy_instance.h"
#include "base/no_destructor.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/strings/utf_string_conversions.h"
#include "base/task/post_task.h"
#include "chrome/browser/browser_process.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_version.h"
#include "components/net_log/chrome_net_log.h"
#include "components/network_hints/common/network_hints.mojom.h"
#include "content/public/browser/browser_main_runner.h"
#include "content/public/browser/browser_ppapi_host.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/client_certificate_delegate.h"
#include "content/public/browser/login_delegate.h"
#include "content/public/browser/overlay_window.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/tts_controller.h"
#include "content/public/browser/tts_platform.h"
#include "content/public/common/content_descriptors.h"
#include "content/public/common/content_paths.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/service_names.mojom.h"
#include "content/public/common/url_constants.h"
#include "content/public/common/web_preferences.h"
#include "electron/buildflags/buildflags.h"
#include "electron/grit/electron_resources.h"
#include "mojo/public/cpp/bindings/binder_map.h"
#include "net/base/escape.h"
#include "net/ssl/ssl_cert_request_info.h"
#include "ppapi/buildflags/buildflags.h"
#include "ppapi/host/ppapi_host.h"
#include "printing/buildflags/buildflags.h"
#include "services/device/public/cpp/geolocation/location_provider.h"
#include "services/network/public/cpp/features.h"
#include "services/network/public/cpp/resource_request_body.h"
#include "shell/app/electron_crash_reporter_client.h"
#include "shell/app/manifests.h"
#include "shell/browser/api/electron_api_app.h"
#include "shell/browser/api/electron_api_crash_reporter.h"
#include "shell/browser/api/electron_api_protocol.h"
#include "shell/browser/api/electron_api_session.h"
#include "shell/browser/api/electron_api_web_contents.h"
#include "shell/browser/api/electron_api_web_request.h"
#include "shell/browser/child_web_contents_tracker.h"
#include "shell/browser/electron_autofill_driver_factory.h"
#include "shell/browser/electron_browser_context.h"
#include "shell/browser/electron_browser_main_parts.h"
#include "shell/browser/electron_navigation_throttle.h"
#include "shell/browser/electron_quota_permission_context.h"
#include "shell/browser/electron_speech_recognition_manager_delegate.h"
#include "shell/browser/font_defaults.h"
#include "shell/browser/javascript_environment.h"
#include "shell/browser/media/media_capture_devices_dispatcher.h"
#include "shell/browser/native_window.h"
#include "shell/browser/net/network_context_service.h"
#include "shell/browser/net/network_context_service_factory.h"
#include "shell/browser/net/proxying_url_loader_factory.h"
#include "shell/browser/net/proxying_websocket.h"
#include "shell/browser/net/system_network_context_manager.h"
#include "shell/browser/network_hints_handler_impl.h"
#include "shell/browser/notifications/notification_presenter.h"
#include "shell/browser/notifications/platform_notification_service.h"
#include "shell/browser/protocol_registry.h"
#include "shell/browser/session_preferences.h"
#include "shell/browser/ui/devtools_manager_delegate.h"
#include "shell/browser/web_contents_permission_helper.h"
#include "shell/browser/web_contents_preferences.h"
#include "shell/browser/window_list.h"
#include "shell/common/api/api.mojom.h"
#include "shell/common/application_info.h"
#include "shell/common/electron_paths.h"
#include "shell/common/options_switches.h"
#include "shell/common/platform_util.h"
#include "third_party/blink/public/common/loader/url_loader_throttle.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/native_theme/native_theme.h"
#include "v8/include/v8.h"
#if defined(OS_WIN)
#include "sandbox/win/src/sandbox_policy.h"
#endif
#if defined(USE_NSS_CERTS)
#include "net/ssl/client_cert_store_nss.h"
#elif defined(OS_WIN)
#include "net/ssl/client_cert_store_win.h"
#elif defined(OS_MAC)
#include "net/ssl/client_cert_store_mac.h"
#elif defined(USE_OPENSSL)
#include "net/ssl/client_cert_store.h"
#endif
#if BUILDFLAG(ENABLE_BUILTIN_SPELLCHECKER)
#include "chrome/browser/spellchecker/spell_check_host_chrome_impl.h" // nogncheck
#include "components/spellcheck/common/spellcheck.mojom.h" // nogncheck
#endif
#if BUILDFLAG(ENABLE_PEPPER_FLASH)
#include "chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h" // nogncheck
#endif // BUILDFLAG(ENABLE_PEPPER_FLASH)
#if BUILDFLAG(OVERRIDE_LOCATION_PROVIDER)
#include "shell/browser/fake_location_provider.h"
#endif // BUILDFLAG(OVERRIDE_LOCATION_PROVIDER)
#if BUILDFLAG(ENABLE_PRINTING)
#include "chrome/browser/printing/printing_message_filter.h"
#endif // BUILDFLAG(ENABLE_PRINTING)
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
#include "chrome/common/webui_url_constants.h"
#include "content/public/browser/child_process_security_policy.h"
#include "content/public/browser/file_url_loader.h"
#include "content/public/browser/web_ui_url_loader_factory.h"
#include "extensions/browser/api/mime_handler_private/mime_handler_private.h"
#include "extensions/browser/browser_context_keyed_api_factory.h"
#include "extensions/browser/extension_host.h"
#include "extensions/browser/extension_message_filter.h"
#include "extensions/browser/extension_navigation_throttle.h"
#include "extensions/browser/extension_navigation_ui_data.h"
#include "extensions/browser/extension_protocols.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extensions_browser_client.h"
#include "extensions/browser/guest_view/extensions_guest_view_message_filter.h"
#include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h"
#include "extensions/browser/info_map.h"
#include "extensions/browser/process_manager.h"
#include "extensions/browser/process_map.h"
#include "extensions/browser/url_loader_factory_manager.h"
#include "extensions/common/api/mime_handler.mojom.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension.h"
#include "extensions/common/switches.h"
#include "shell/browser/extensions/electron_extension_message_filter.h"
#include "shell/browser/extensions/electron_extension_system.h"
#include "shell/browser/extensions/electron_extension_web_contents_observer.h"
#endif
#if BUILDFLAG(ENABLE_PLUGINS)
#include "chrome/browser/plugins/plugin_response_interceptor_url_loader_throttle.h" // nogncheck
#include "shell/browser/plugins/plugin_utils.h"
#endif
#if defined(OS_MAC)
#include "content/common/mac_helpers.h"
#include "content/public/common/child_process_host.h"
#endif
#if defined(OS_LINUX) && !defined(MAS_BUILD)
#include "base/debug/leak_annotations.h"
#include "components/crash/content/browser/crash_handler_host_linux.h"
#include "components/crash/core/app/breakpad_linux.h" // nogncheck
#include "components/crash/core/app/crash_switches.h" // nogncheck
#include "components/crash/core/app/crashpad.h" // nogncheck
#endif
using content::BrowserThread;
namespace electron {
namespace {
// Next navigation should not restart renderer process.
bool g_suppress_renderer_process_restart = false;
bool IsSameWebSite(content::BrowserContext* browser_context,
content::SiteInstance* site_instance,
const GURL& dest_url) {
return site_instance->IsSameSiteWithURL(dest_url) ||
// `IsSameSiteWithURL` doesn't seem to work for some URIs such as
// `file:`, handle these scenarios by comparing only the site as
// defined by `GetSiteForURL`.
(content::SiteInstance::GetSiteForURL(browser_context, dest_url) ==
site_instance->GetSiteURL());
}
ElectronBrowserClient* g_browser_client = nullptr;
base::LazyInstance<std::string>::DestructorAtExit
g_io_thread_application_locale = LAZY_INSTANCE_INITIALIZER;
base::NoDestructor<std::string> g_application_locale;
void SetApplicationLocaleOnIOThread(const std::string& locale) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
g_io_thread_application_locale.Get() = locale;
}
void BindNetworkHintsHandler(
content::RenderFrameHost* frame_host,
mojo::PendingReceiver<network_hints::mojom::NetworkHintsHandler> receiver) {
NetworkHintsHandlerImpl::Create(frame_host, std::move(receiver));
}
#if defined(OS_WIN)
const base::FilePath::StringPieceType kPathDelimiter = FILE_PATH_LITERAL(";");
#else
const base::FilePath::StringPieceType kPathDelimiter = FILE_PATH_LITERAL(":");
#endif
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
// Used by the GetPrivilegeRequiredByUrl() and GetProcessPrivilege() functions
// below. Extension, and isolated apps require different privileges to be
// granted to their RenderProcessHosts. This classification allows us to make
// sure URLs are served by hosts with the right set of privileges.
enum RenderProcessHostPrivilege {
PRIV_NORMAL,
PRIV_HOSTED,
PRIV_ISOLATED,
PRIV_EXTENSION,
};
RenderProcessHostPrivilege GetPrivilegeRequiredByUrl(
const GURL& url,
extensions::ExtensionRegistry* registry) {
// Default to a normal renderer cause it is lower privileged. This should only
// occur if the URL on a site instance is either malformed, or uninitialized.
// If it is malformed, then there is no need for better privileges anyways.
// If it is uninitialized, but eventually settles on being an a scheme other
// than normal webrenderer, the navigation logic will correct us out of band
// anyways.
if (!url.is_valid())
return PRIV_NORMAL;
if (!url.SchemeIs(extensions::kExtensionScheme))
return PRIV_NORMAL;
return PRIV_EXTENSION;
}
RenderProcessHostPrivilege GetProcessPrivilege(
content::RenderProcessHost* process_host,
extensions::ProcessMap* process_map,
extensions::ExtensionRegistry* registry) {
std::set<std::string> extension_ids =
process_map->GetExtensionsInProcess(process_host->GetID());
if (extension_ids.empty())
return PRIV_NORMAL;
return PRIV_EXTENSION;
}
const extensions::Extension* GetEnabledExtensionFromEffectiveURL(
content::BrowserContext* context,
const GURL& effective_url) {
if (!effective_url.SchemeIs(extensions::kExtensionScheme))
return nullptr;
extensions::ExtensionRegistry* registry =
extensions::ExtensionRegistry::Get(context);
if (!registry)
return nullptr;
return registry->enabled_extensions().GetByID(effective_url.host());
}
#endif // BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
#if defined(OS_LINUX)
breakpad::CrashHandlerHostLinux* CreateCrashHandlerHost(
const std::string& process_type) {
base::FilePath dumps_path;
base::PathService::Get(electron::DIR_CRASH_DUMPS, &dumps_path);
{
ANNOTATE_SCOPED_MEMORY_LEAK;
bool upload = ElectronCrashReporterClient::Get()->GetCollectStatsConsent();
breakpad::CrashHandlerHostLinux* crash_handler =
new breakpad::CrashHandlerHostLinux(process_type, dumps_path, upload);
crash_handler->StartUploaderThread();
return crash_handler;
}
}
int GetCrashSignalFD(const base::CommandLine& command_line) {
// Extensions have the same process type as renderers.
if (command_line.HasSwitch(extensions::switches::kExtensionProcess)) {
static breakpad::CrashHandlerHostLinux* crash_handler = nullptr;
if (!crash_handler)
crash_handler = CreateCrashHandlerHost("extension");
return crash_handler->GetDeathSignalSocket();
}
std::string process_type =
command_line.GetSwitchValueASCII(::switches::kProcessType);
if (process_type == ::switches::kRendererProcess) {
static breakpad::CrashHandlerHostLinux* crash_handler = nullptr;
if (!crash_handler)
crash_handler = CreateCrashHandlerHost(process_type);
return crash_handler->GetDeathSignalSocket();
}
if (process_type == ::switches::kPpapiPluginProcess) {
static breakpad::CrashHandlerHostLinux* crash_handler = nullptr;
if (!crash_handler)
crash_handler = CreateCrashHandlerHost(process_type);
return crash_handler->GetDeathSignalSocket();
}
if (process_type == ::switches::kGpuProcess) {
static breakpad::CrashHandlerHostLinux* crash_handler = nullptr;
if (!crash_handler)
crash_handler = CreateCrashHandlerHost(process_type);
return crash_handler->GetDeathSignalSocket();
}
if (process_type == ::switches::kUtilityProcess) {
static breakpad::CrashHandlerHostLinux* crash_handler = nullptr;
if (!crash_handler)
crash_handler = CreateCrashHandlerHost(process_type);
return crash_handler->GetDeathSignalSocket();
}
return -1;
}
#endif // defined(OS_LINUX)
} // namespace
// static
void ElectronBrowserClient::SuppressRendererProcessRestartForOnce() {
g_suppress_renderer_process_restart = true;
}
ElectronBrowserClient* ElectronBrowserClient::Get() {
return g_browser_client;
}
// static
void ElectronBrowserClient::SetApplicationLocale(const std::string& locale) {
if (!BrowserThread::IsThreadInitialized(BrowserThread::IO) ||
!base::PostTask(
FROM_HERE, {BrowserThread::IO},
base::BindOnce(&SetApplicationLocaleOnIOThread, locale))) {
g_io_thread_application_locale.Get() = locale;
}
*g_application_locale = locale;
}
ElectronBrowserClient::ElectronBrowserClient() {
DCHECK(!g_browser_client);
g_browser_client = this;
}
ElectronBrowserClient::~ElectronBrowserClient() {
DCHECK(g_browser_client);
g_browser_client = nullptr;
}
content::WebContents* ElectronBrowserClient::GetWebContentsFromProcessID(
int process_id) {
// If the process is a pending process, we should use the web contents
// for the frame host passed into RegisterPendingProcess.
const auto iter = pending_processes_.find(process_id);
if (iter != std::end(pending_processes_))
return iter->second;
// Certain render process will be created with no associated render view,
// for example: ServiceWorker.
return WebContentsPreferences::GetWebContentsFromProcessID(process_id);
}
bool ElectronBrowserClient::ShouldForceNewSiteInstance(
content::RenderFrameHost* current_rfh,
content::RenderFrameHost* speculative_rfh,
content::BrowserContext* browser_context,
const GURL& url,
bool has_response_started) const {
if (url.SchemeIs(url::kJavaScriptScheme))
// "javacript:" scheme should always use same SiteInstance
return false;
if (url.SchemeIs(extensions::kExtensionScheme))
return false;
content::SiteInstance* current_instance = current_rfh->GetSiteInstance();
content::SiteInstance* speculative_instance =
speculative_rfh ? speculative_rfh->GetSiteInstance() : nullptr;
int process_id = current_instance->GetProcess()->GetID();
if (NavigationWasRedirectedCrossSite(browser_context, current_instance,
speculative_instance, url,
has_response_started)) {
// Navigation was redirected. We can't force the current, speculative or a
// new unrelated site instance to be used. Delegate to the content layer.
return false;
} else if (IsRendererSandboxed(process_id)) {
// Renderer is sandboxed, delegate the decision to the content layer for all
// origins.
return false;
} else if (!RendererUsesNativeWindowOpen(process_id)) {
// non-sandboxed renderers without native window.open should always create
// a new SiteInstance
return true;
} else {
auto* web_contents = content::WebContents::FromRenderFrameHost(current_rfh);
if (!ChildWebContentsTracker::FromWebContents(web_contents)) {
// Root WebContents should always create new process to make sure
// native addons are loaded correctly after reload / navigation.
// (Non-root WebContents opened by window.open() should try to
// reuse process to allow synchronous cross-window scripting.)
return true;
}
}
// Create new a SiteInstance if navigating to a different site.
return !IsSameWebSite(browser_context, current_instance, url);
}
bool ElectronBrowserClient::NavigationWasRedirectedCrossSite(
content::BrowserContext* browser_context,
content::SiteInstance* current_instance,
content::SiteInstance* speculative_instance,
const GURL& dest_url,
bool has_response_started) const {
bool navigation_was_redirected = false;
if (has_response_started) {
navigation_was_redirected =
!IsSameWebSite(browser_context, current_instance, dest_url);
} else {
navigation_was_redirected =
speculative_instance &&
!IsSameWebSite(browser_context, speculative_instance, dest_url);
}
return navigation_was_redirected;
}
void ElectronBrowserClient::AddProcessPreferences(
int process_id,
ElectronBrowserClient::ProcessPreferences prefs) {
process_preferences_[process_id] = prefs;
}
void ElectronBrowserClient::RemoveProcessPreferences(int process_id) {
process_preferences_.erase(process_id);
}
bool ElectronBrowserClient::IsProcessObserved(int process_id) const {
return process_preferences_.find(process_id) != process_preferences_.end();
}
bool ElectronBrowserClient::IsRendererSandboxed(int process_id) const {
auto it = process_preferences_.find(process_id);
return it != process_preferences_.end() && it->second.sandbox;
}
bool ElectronBrowserClient::RendererUsesNativeWindowOpen(int process_id) const {
auto it = process_preferences_.find(process_id);
return it != process_preferences_.end() && it->second.native_window_open;
}
bool ElectronBrowserClient::RendererDisablesPopups(int process_id) const {
auto it = process_preferences_.find(process_id);
return it != process_preferences_.end() && it->second.disable_popups;
}
std::string ElectronBrowserClient::GetAffinityPreference(
content::RenderFrameHost* rfh) const {
auto* web_contents = content::WebContents::FromRenderFrameHost(rfh);
auto* web_preferences = WebContentsPreferences::From(web_contents);
std::string affinity;
if (web_preferences &&
web_preferences->GetPreference("affinity", &affinity) &&
!affinity.empty()) {
affinity = base::ToLowerASCII(affinity);
}
return affinity;
}
content::SiteInstance* ElectronBrowserClient::GetSiteInstanceFromAffinity(
content::BrowserContext* browser_context,
const GURL& url,
content::RenderFrameHost* rfh) const {
std::string affinity = GetAffinityPreference(rfh);
if (!affinity.empty()) {
auto iter = site_per_affinities_.find(affinity);
GURL dest_site = content::SiteInstance::GetSiteForURL(browser_context, url);
if (iter != site_per_affinities_.end() &&
IsSameWebSite(browser_context, iter->second, dest_site)) {
return iter->second;
}
}
return nullptr;
}
void ElectronBrowserClient::ConsiderSiteInstanceForAffinity(
content::RenderFrameHost* rfh,
content::SiteInstance* site_instance) {
std::string affinity = GetAffinityPreference(rfh);
if (!affinity.empty()) {
site_per_affinities_[affinity] = site_instance;
}
}
bool ElectronBrowserClient::IsRendererSubFrame(int process_id) const {
return base::Contains(renderer_is_subframe_, process_id);
}
void ElectronBrowserClient::RenderProcessWillLaunch(
content::RenderProcessHost* host) {
// When a render process is crashed, it might be reused.
int process_id = host->GetID();
if (IsProcessObserved(process_id))
return;
auto* browser_context = host->GetBrowserContext();
ALLOW_UNUSED_LOCAL(browser_context);
#if BUILDFLAG(ENABLE_PRINTING)
host->AddFilter(
new printing::PrintingMessageFilter(process_id, browser_context));
#endif
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
host->AddFilter(
new extensions::ExtensionMessageFilter(process_id, browser_context));
host->AddFilter(new extensions::ExtensionsGuestViewMessageFilter(
process_id, browser_context));
host->AddFilter(
new ElectronExtensionMessageFilter(process_id, browser_context));
#endif
ProcessPreferences prefs;
auto* web_preferences =
WebContentsPreferences::From(GetWebContentsFromProcessID(process_id));
if (web_preferences) {
prefs.sandbox = web_preferences->IsEnabled(options::kSandbox);
prefs.native_window_open =
web_preferences->IsEnabled(options::kNativeWindowOpen);
prefs.disable_popups = web_preferences->IsEnabled("disablePopups");
prefs.web_security = web_preferences->IsEnabled(options::kWebSecurity,
true /* default value */);
prefs.browser_context = host->GetBrowserContext();
}
AddProcessPreferences(host->GetID(), prefs);
// ensure the ProcessPreferences is removed later
host->AddObserver(this);
}
content::SpeechRecognitionManagerDelegate*
ElectronBrowserClient::CreateSpeechRecognitionManagerDelegate() {
return new ElectronSpeechRecognitionManagerDelegate;
}
content::TtsPlatform* ElectronBrowserClient::GetTtsPlatform() {
return nullptr;
}
void ElectronBrowserClient::OverrideWebkitPrefs(
content::RenderViewHost* host,
content::WebPreferences* prefs) {
prefs->javascript_enabled = true;
prefs->web_security_enabled = true;
prefs->plugins_enabled = true;
prefs->dom_paste_enabled = true;
prefs->allow_scripts_to_close_windows = true;
prefs->javascript_can_access_clipboard = true;
prefs->local_storage_enabled = true;
prefs->databases_enabled = true;
prefs->application_cache_enabled = true;
prefs->allow_universal_access_from_file_urls = true;
prefs->allow_file_access_from_file_urls = true;
prefs->webgl1_enabled = true;
prefs->webgl2_enabled = true;
prefs->allow_running_insecure_content = false;
prefs->default_minimum_page_scale_factor = 1.f;
prefs->default_maximum_page_scale_factor = 1.f;
prefs->navigate_on_drag_drop = false;
#if !BUILDFLAG(ENABLE_PICTURE_IN_PICTURE)
prefs->picture_in_picture_enabled = false;
#endif
ui::NativeTheme* native_theme = ui::NativeTheme::GetInstanceForNativeUi();
prefs->preferred_color_scheme = native_theme->ShouldUseDarkColors()
? blink::PreferredColorScheme::kDark
: blink::PreferredColorScheme::kLight;
SetFontDefaults(prefs);
// Custom preferences of guest page.
auto* web_contents = content::WebContents::FromRenderViewHost(host);
auto* web_preferences = WebContentsPreferences::From(web_contents);
if (web_preferences)
web_preferences->OverrideWebkitPrefs(prefs);
}
void ElectronBrowserClient::SetCanUseCustomSiteInstance(bool should_disable) {
disable_process_restart_tricks_ = should_disable;
}
bool ElectronBrowserClient::CanUseCustomSiteInstance() {
return disable_process_restart_tricks_;
}
content::ContentBrowserClient::SiteInstanceForNavigationType
ElectronBrowserClient::ShouldOverrideSiteInstanceForNavigation(
content::RenderFrameHost* current_rfh,
content::RenderFrameHost* speculative_rfh,
content::BrowserContext* browser_context,
const GURL& url,
bool has_navigation_started,
bool has_response_started,
content::SiteInstance** affinity_site_instance) const {
if (g_suppress_renderer_process_restart) {
g_suppress_renderer_process_restart = false;
return SiteInstanceForNavigationType::ASK_CHROMIUM;
}
// Do we have an affinity site to manage ?
content::SiteInstance* site_instance_from_affinity =
GetSiteInstanceFromAffinity(browser_context, url, current_rfh);
if (site_instance_from_affinity) {
*affinity_site_instance = site_instance_from_affinity;
return SiteInstanceForNavigationType::FORCE_AFFINITY;
}
if (!ShouldForceNewSiteInstance(current_rfh, speculative_rfh, browser_context,
url, has_response_started)) {
return SiteInstanceForNavigationType::ASK_CHROMIUM;
}
// ShouldOverrideSiteInstanceForNavigation will be called more than once
// during a navigation (currently twice, on request and when it's about
// to commit in the renderer), look at
// RenderFrameHostManager::GetFrameHostForNavigation.
// In the default mode we should reuse the same site instance until the
// request commits otherwise it will get destroyed. Currently there is no
// unique lifetime tracker for a navigation request during site instance
// creation. We check for the state of the request, which should be one of
// (WAITING_FOR_RENDERER_RESPONSE, STARTED, RESPONSE_STARTED, FAILED) along
// with the availability of a speculative render frame host.
if (has_response_started) {
return SiteInstanceForNavigationType::FORCE_CURRENT;
}
if (!has_navigation_started) {
// If the navigation didn't start yet, ignore any candidate site instance.
// If such instance exists, it belongs to a previous navigation still
// taking place. Fixes https://github.com/electron/electron/issues/17576.
return SiteInstanceForNavigationType::FORCE_NEW;
}
return SiteInstanceForNavigationType::FORCE_CANDIDATE_OR_NEW;
}
void ElectronBrowserClient::RegisterPendingSiteInstance(
content::RenderFrameHost* rfh,
content::SiteInstance* pending_site_instance) {
// Do we have an affinity site to manage?
ConsiderSiteInstanceForAffinity(rfh, pending_site_instance);
// Remember the original web contents for the pending renderer process.
auto* web_contents = content::WebContents::FromRenderFrameHost(rfh);
auto* pending_process = pending_site_instance->GetProcess();
pending_processes_[pending_process->GetID()] = web_contents;
if (rfh->GetParent())
renderer_is_subframe_.insert(pending_process->GetID());
else
renderer_is_subframe_.erase(pending_process->GetID());
}
void ElectronBrowserClient::AppendExtraCommandLineSwitches(
base::CommandLine* command_line,
int process_id) {
// Make sure we're about to launch a known executable
{
base::ThreadRestrictions::ScopedAllowIO allow_io;
base::FilePath child_path;
base::FilePath program =
base::MakeAbsoluteFilePath(command_line->GetProgram());
#if defined(OS_MAC)
auto renderer_child_path = content::ChildProcessHost::GetChildPath(
content::ChildProcessHost::CHILD_RENDERER);
auto gpu_child_path = content::ChildProcessHost::GetChildPath(
content::ChildProcessHost::CHILD_GPU);
auto plugin_child_path = content::ChildProcessHost::GetChildPath(
content::ChildProcessHost::CHILD_PLUGIN);
if (program != renderer_child_path && program != gpu_child_path &&
program != plugin_child_path) {
child_path = content::ChildProcessHost::GetChildPath(
content::ChildProcessHost::CHILD_NORMAL);
CHECK_EQ(program, child_path)
<< "Aborted from launching unexpected helper executable";
}
#else
base::PathService::Get(content::CHILD_PROCESS_EXE, &child_path);
CHECK_EQ(program, child_path);
#endif
}
std::string process_type =
command_line->GetSwitchValueASCII(::switches::kProcessType);
#if defined(OS_LINUX)
bool enable_crash_reporter = false;
enable_crash_reporter = breakpad::IsCrashReporterEnabled();
if (enable_crash_reporter) {
std::string switch_value =
api::crash_reporter::GetClientId() + ",no_channel";
command_line->AppendSwitchASCII(::switches::kEnableCrashReporter,
switch_value);
for (const auto& pair : api::crash_reporter::GetGlobalCrashKeys()) {
if (!switch_value.empty())
switch_value += ",";
switch_value += pair.first;
switch_value += "=";
switch_value += pair.second;
}
command_line->AppendSwitchASCII(switches::kGlobalCrashKeys, switch_value);
}
#endif
if (process_type == ::switches::kUtilityProcess ||
process_type == ::switches::kRendererProcess) {
// Copy following switches to child process.
static const char* const kCommonSwitchNames[] = {
switches::kStandardSchemes, switches::kEnableSandbox,
switches::kSecureSchemes, switches::kBypassCSPSchemes,
switches::kCORSSchemes, switches::kFetchSchemes,
switches::kServiceWorkerSchemes, switches::kEnableApiFilteringLogging,
switches::kStreamingSchemes};
command_line->CopySwitchesFrom(*base::CommandLine::ForCurrentProcess(),
kCommonSwitchNames,
base::size(kCommonSwitchNames));
}
if (process_type == ::switches::kRendererProcess) {
#if defined(OS_WIN)
// Append --app-user-model-id.
PWSTR current_app_id;
if (SUCCEEDED(GetCurrentProcessExplicitAppUserModelID(¤t_app_id))) {
command_line->AppendSwitchNative(switches::kAppUserModelId,
current_app_id);
CoTaskMemFree(current_app_id);
}
#endif
if (delegate_) {
auto app_path = static_cast<api::App*>(delegate_)->GetAppPath();
command_line->AppendSwitchPath(switches::kAppPath, app_path);
}
std::unique_ptr<base::Environment> env(base::Environment::Create());
if (env->HasVar("ELECTRON_PROFILE_INIT_SCRIPTS")) {
command_line->AppendSwitch("profile-electron-init");
}
// Extension background pages don't have WebContentsPreferences, but they
// support WebSQL by default.
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
content::RenderProcessHost* process =
content::RenderProcessHost::FromID(process_id);
if (extensions::ProcessMap::Get(process->GetBrowserContext())
->Contains(process_id))
command_line->AppendSwitch(switches::kEnableWebSQL);
#endif
content::WebContents* web_contents =
GetWebContentsFromProcessID(process_id);
if (web_contents) {
auto* web_preferences = WebContentsPreferences::From(web_contents);
if (web_preferences)
web_preferences->AppendCommandLineSwitches(
command_line, IsRendererSubFrame(process_id));
auto preloads = SessionPreferences::GetValidPreloads(
web_contents->GetBrowserContext());
if (!preloads.empty())
command_line->AppendSwitchNative(
switches::kPreloadScripts,
base::JoinString(preloads, kPathDelimiter));
if (CanUseCustomSiteInstance()) {
command_line->AppendSwitch(
switches::kDisableElectronSiteInstanceOverrides);
}
}
}
}
void ElectronBrowserClient::DidCreatePpapiPlugin(
content::BrowserPpapiHost* host) {
#if BUILDFLAG(ENABLE_PEPPER_FLASH)
host->GetPpapiHost()->AddHostFactoryFilter(
base::WrapUnique(new ChromeBrowserPepperHostFactory(host)));
#endif
}
// attempt to get api key from env
std::string ElectronBrowserClient::GetGeolocationApiKey() {
std::unique_ptr<base::Environment> env(base::Environment::Create());
std::string api_key;
env->GetVar("GOOGLE_API_KEY", &api_key);
return api_key;
}
scoped_refptr<content::QuotaPermissionContext>
ElectronBrowserClient::CreateQuotaPermissionContext() {
return new ElectronQuotaPermissionContext;
}
content::GeneratedCodeCacheSettings
ElectronBrowserClient::GetGeneratedCodeCacheSettings(
content::BrowserContext* context) {
// TODO(deepak1556): Use platform cache directory.
base::FilePath cache_path = context->GetPath();
// If we pass 0 for size, disk_cache will pick a default size using the
// heuristics based on available disk size. These are implemented in
// disk_cache::PreferredCacheSize in net/disk_cache/cache_util.cc.
return content::GeneratedCodeCacheSettings(true, 0, cache_path);
}
void ElectronBrowserClient::AllowCertificateError(
content::WebContents* web_contents,
int cert_error,
const net::SSLInfo& ssl_info,
const GURL& request_url,
bool is_main_frame_request,
bool strict_enforcement,
base::OnceCallback<void(content::CertificateRequestResultType)> callback) {
if (delegate_) {
delegate_->AllowCertificateError(web_contents, cert_error, ssl_info,
request_url, is_main_frame_request,
strict_enforcement, std::move(callback));
}
}
base::OnceClosure ElectronBrowserClient::SelectClientCertificate(
content::WebContents* web_contents,
net::SSLCertRequestInfo* cert_request_info,
net::ClientCertIdentityList client_certs,
std::unique_ptr<content::ClientCertificateDelegate> delegate) {
if (!client_certs.empty() && delegate_) {
delegate_->SelectClientCertificate(web_contents, cert_request_info,
std::move(client_certs),
std::move(delegate));
}
return base::OnceClosure();
}
bool ElectronBrowserClient::CanCreateWindow(
content::RenderFrameHost* opener,
const GURL& opener_url,
const GURL& opener_top_level_frame_url,
const url::Origin& source_origin,
content::mojom::WindowContainerType container_type,
const GURL& target_url,
const content::Referrer& referrer,
const std::string& frame_name,
WindowOpenDisposition disposition,
const blink::mojom::WindowFeatures& features,
const std::string& raw_features,
const scoped_refptr<network::ResourceRequestBody>& body,
bool user_gesture,
bool opener_suppressed,
bool* no_javascript_access) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
int opener_render_process_id = opener->GetProcess()->GetID();
if (RendererUsesNativeWindowOpen(opener_render_process_id)) {
if (RendererDisablesPopups(opener_render_process_id)) {
// <webview> without allowpopups attribute should return
// null from window.open calls
return false;
} else {
*no_javascript_access = false;
return true;
}
}
if (delegate_) {
return delegate_->CanCreateWindow(
opener, opener_url, opener_top_level_frame_url, source_origin,
container_type, target_url, referrer, frame_name, disposition, features,
raw_features, body, user_gesture, opener_suppressed,
no_javascript_access);
}
return false;
}
#if BUILDFLAG(ENABLE_PICTURE_IN_PICTURE)
std::unique_ptr<content::OverlayWindow>
ElectronBrowserClient::CreateWindowForPictureInPicture(
content::PictureInPictureWindowController* controller) {
return content::OverlayWindow::Create(controller);
}
#endif
void ElectronBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
std::vector<std::string>* additional_schemes) {
auto schemes_list = api::GetStandardSchemes();
if (!schemes_list.empty())
additional_schemes->insert(additional_schemes->end(), schemes_list.begin(),
schemes_list.end());
additional_schemes->push_back(content::kChromeDevToolsScheme);
additional_schemes->push_back(content::kChromeUIScheme);
}
void ElectronBrowserClient::GetAdditionalWebUISchemes(
std::vector<std::string>* additional_schemes) {
additional_schemes->push_back(content::kChromeDevToolsScheme);
}
void ElectronBrowserClient::SiteInstanceGotProcess(
content::SiteInstance* site_instance) {
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
auto* browser_context =
static_cast<ElectronBrowserContext*>(site_instance->GetBrowserContext());
if (!browser_context->IsOffTheRecord()) {
extensions::ExtensionRegistry* registry =
extensions::ExtensionRegistry::Get(browser_context);
const extensions::Extension* extension =
registry->enabled_extensions().GetExtensionOrAppByURL(
site_instance->GetSiteURL());
if (!extension)
return;
extensions::ProcessMap::Get(browser_context)
->Insert(extension->id(), site_instance->GetProcess()->GetID(),
site_instance->GetId());
}
#endif // BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
}
bool ElectronBrowserClient::IsSuitableHost(
content::RenderProcessHost* process_host,
const GURL& site_url) {
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
auto* browser_context = process_host->GetBrowserContext();
extensions::ExtensionRegistry* registry =
extensions::ExtensionRegistry::Get(browser_context);
extensions::ProcessMap* process_map =
extensions::ProcessMap::Get(browser_context);
// Otherwise, just make sure the process privilege matches the privilege
// required by the site.
RenderProcessHostPrivilege privilege_required =
GetPrivilegeRequiredByUrl(site_url, registry);
return GetProcessPrivilege(process_host, process_map, registry) ==
privilege_required;
#else
return content::ContentBrowserClient::IsSuitableHost(process_host, site_url);
#endif
}
bool ElectronBrowserClient::ShouldUseProcessPerSite(
content::BrowserContext* browser_context,
const GURL& effective_url) {
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
const extensions::Extension* extension =
GetEnabledExtensionFromEffectiveURL(browser_context, effective_url);
return extension != nullptr;
#else
return content::ContentBrowserClient::ShouldUseProcessPerSite(browser_context,
effective_url);
#endif
}
bool ElectronBrowserClient::ArePersistentMediaDeviceIDsAllowed(
content::BrowserContext* browser_context,
const GURL& scope,
const GURL& site_for_cookies,
const base::Optional<url::Origin>& top_frame_origin) {
return true;
}
void ElectronBrowserClient::SiteInstanceDeleting(
content::SiteInstance* site_instance) {
// We are storing weak_ptr, is it fundamental to maintain the map up-to-date
// when an instance is destroyed.
for (auto iter = site_per_affinities_.begin();
iter != site_per_affinities_.end(); ++iter) {
if (iter->second == site_instance) {