Source code
Revision control
Copy as Markdown
Other Tools
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "mozilla/dom/ContentParent.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/ipc/GeckoChildProcessHost.h"
#include "mozilla/AppShutdown.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/Assertions.h"
#include "mozilla/Attributes.h"
#include "mozilla/Components.h"
#include "mozilla/FilePreferences.h"
#include "mozilla/ChaosMode.h"
#include "mozilla/CmdLineAndEnvUtils.h"
#include "mozilla/IOInterposer.h"
#include "mozilla/ipc/UtilityProcessChild.h"
#include "mozilla/Likely.h"
#include "mozilla/MemoryChecking.h"
#include "mozilla/Poison.h"
#include "mozilla/Preferences.h"
#include "mozilla/PreferenceSheet.h"
#include "mozilla/Printf.h"
#include "mozilla/ProcessType.h"
#include "mozilla/ResultExtensions.h"
#include "mozilla/RuntimeExceptionModule.h"
#include "mozilla/ScopeExit.h"
#include "mozilla/StaticPrefs_browser.h"
#include "mozilla/StaticPrefs_fission.h"
#include "mozilla/StaticPrefs_webgl.h"
#include "mozilla/StaticPrefs_widget.h"
#include "mozilla/Telemetry.h"
#include "mozilla/Try.h"
#include "mozilla/Utf8.h"
#include "mozilla/intl/LocaleService.h"
#include "mozilla/JSONWriter.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/glean/GleanMetrics.h"
#include "mozilla/glean/GleanPings.h"
#include "mozilla/widget/TextRecognition.h"
#include "BaseProfiler.h"
#include "mozJSModuleLoader.h"
#include "nsAppRunner.h"
#include "mozilla/XREAppData.h"
#include "mozilla/Bootstrap.h"
#if defined(MOZ_UPDATER) && !defined(MOZ_WIDGET_ANDROID)
# include "nsUpdateDriver.h"
# include "nsUpdateSyncManager.h"
#endif
#include "ProfileReset.h"
#ifdef XP_MACOSX
# include "nsVersionComparator.h"
# include "MacLaunchHelper.h"
# include "MacApplicationDelegate.h"
# include "MacAutoreleasePool.h"
# include "MacRunFromDmgUtils.h"
// these are needed for sysctl
# include <sys/types.h>
# include <sys/sysctl.h>
#endif
#include "prnetdb.h"
#include "prprf.h"
#include "prproces.h"
#include "prenv.h"
#include "prtime.h"
#include "nsIAppStartup.h"
#include "nsCategoryManagerUtils.h"
#include "nsIMutableArray.h"
#include "nsCommandLine.h"
#include "nsIComponentRegistrar.h"
#include "nsIDialogParamBlock.h"
#include "mozilla/ModuleUtils.h"
#include "nsIIOService.h"
#include "nsIObserverService.h"
#include "nsINativeAppSupport.h"
#include "nsIPlatformInfo.h"
#include "nsIProcess.h"
#include "nsIProfileUnlocker.h"
#include "nsIPromptService.h"
#include "nsIPropertyBag2.h"
#include "nsIServiceManager.h"
#include "nsIStringBundle.h"
#include "nsISupportsPrimitives.h"
#include "nsIToolkitProfile.h"
#include "nsToolkitProfileService.h"
#include "nsIURI.h"
#include "nsIURL.h"
#include "nsIWindowCreator.h"
#include "nsIWindowWatcher.h"
#include "nsIXULAppInfo.h"
#include "nsIXULRuntime.h"
#include "nsPIDOMWindow.h"
#include "nsIWidget.h"
#include "nsAppShellCID.h"
#include "mozilla/dom/quota/QuotaManager.h"
#include "mozilla/scache/StartupCache.h"
#include "gfxPlatform.h"
#include "PDMFactory.h"
#ifdef XP_MACOSX
# include "gfxPlatformMac.h"
#endif
#include "mozilla/Unused.h"
#ifdef XP_WIN
# include "nsIWinAppHelper.h"
# include <windows.h>
# include <intrin.h>
# include <math.h>
# include "cairo/cairo-features.h"
# include "detect_win32k_conflicts.h"
# include "mozilla/PreXULSkeletonUI.h"
# include "mozilla/DllPrefetchExperimentRegistryInfo.h"
# include "mozilla/WindowsBCryptInitialization.h"
# include "mozilla/WindowsDllBlocklist.h"
# include "mozilla/WindowsMsctfInitialization.h"
# include "mozilla/WindowsOleAut32Initialization.h"
# include "mozilla/WindowsProcessMitigations.h"
# include "mozilla/WindowsVersion.h"
# include "mozilla/WinHeaderOnlyUtils.h"
# include "mozilla/mscom/ProcessRuntime.h"
# include "mozilla/mscom/ProfilerMarkers.h"
# include "WinTokenUtils.h"
# if defined(MOZ_LAUNCHER_PROCESS)
# include "mozilla/LauncherRegistryInfo.h"
# endif
# if defined(MOZ_DEFAULT_BROWSER_AGENT)
# include "nsIWindowsRegKey.h"
# endif
# ifndef PROCESS_DEP_ENABLE
# define PROCESS_DEP_ENABLE 0x1
# endif
#endif
#if defined(MOZ_SANDBOX)
# include "mozilla/SandboxSettings.h"
#endif
#ifdef ACCESSIBILITY
# include "nsAccessibilityService.h"
# if defined(XP_WIN)
# include "mozilla/a11y/Compatibility.h"
# include "mozilla/a11y/Platform.h"
# endif
#endif
#include "nsCRT.h"
#include "nsCOMPtr.h"
#include "nsDirectoryServiceDefs.h"
#include "nsDirectoryServiceUtils.h"
#include "nsEmbedCID.h"
#include "nsIDUtils.h"
#include "nsNetUtil.h"
#include "nsReadableUtils.h"
#include "nsXPCOM.h"
#include "nsXPCOMCIDInternal.h"
#include "nsString.h"
#include "nsPrintfCString.h"
#include "nsVersionComparator.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsXULAppAPI.h"
#include "nsXREDirProvider.h"
#include "nsINIParser.h"
#include "mozilla/Omnijar.h"
#include "mozilla/StartupTimeline.h"
#include "mozilla/LateWriteChecks.h"
#include <stdlib.h>
#include <locale.h>
#ifdef XP_UNIX
# include <errno.h>
# include <pwd.h>
# include <string.h>
# include <sys/resource.h>
# include <sys/stat.h>
# include <unistd.h>
#endif
#ifdef XP_WIN
# include <process.h>
# include <shlobj.h>
# include "mozilla/WinDllServices.h"
# include "nsThreadUtils.h"
# include "WinUtils.h"
#endif
#ifdef XP_MACOSX
# include "nsILocalFileMac.h"
# include "nsCommandLineServiceMac.h"
#endif
// for X remote support
#if defined(MOZ_HAS_REMOTE)
# include "nsRemoteService.h"
#endif
#if defined(DEBUG) && defined(XP_WIN)
# include <malloc.h>
#endif
#if defined(XP_MACOSX)
# include <Carbon/Carbon.h>
#endif
#ifdef DEBUG
# include "mozilla/Logging.h"
#endif
#include "nsExceptionHandler.h"
#include "nsICrashReporter.h"
#include "nsIPrefService.h"
#include "nsIMemoryInfoDumper.h"
#if defined(XP_LINUX) && !defined(ANDROID)
# include "mozilla/widget/LSBUtils.h"
#endif
#include "base/command_line.h"
#include "GTestRunner.h"
#ifdef MOZ_WIDGET_ANDROID
# include "gfxAndroidPlatform.h"
# include "mozilla/java/GeckoAppShellWrappers.h"
#endif
#if defined(MOZ_SANDBOX)
# if defined(XP_LINUX) && !defined(ANDROID)
# include "mozilla/SandboxInfo.h"
# elif defined(XP_WIN)
# include "sandboxBroker.h"
# endif
#endif
#ifdef MOZ_CODE_COVERAGE
# include "mozilla/CodeCoverageHandler.h"
#endif
#include "GMPProcessChild.h"
#include "SafeMode.h"
#ifdef MOZ_BACKGROUNDTASKS
# include "mozilla/BackgroundTasks.h"
# include "nsIPowerManagerService.h"
# include "nsIStringBundle.h"
#endif
#ifdef USE_GLX_TEST
# include "mozilla/GUniquePtr.h"
# include "mozilla/GfxInfo.h"
#endif
#ifdef MOZ_WIDGET_GTK
# include "nsAppShell.h"
#endif
#ifdef MOZ_ENABLE_DBUS
# include "DBusService.h"
#endif
extern uint32_t gRestartMode;
extern void InstallSignalHandlers(const char* ProgramName);
#define FILE_COMPATIBILITY_INFO "compatibility.ini"_ns
#define FILE_INVALIDATE_CACHES ".purgecaches"_ns
#define FILE_STARTUP_INCOMPLETE u".startup-incomplete"_ns
#if defined(MOZ_BLOCK_PROFILE_DOWNGRADE) || defined(MOZ_LAUNCHER_PROCESS) || \
defined(MOZ_DEFAULT_BROWSER_AGENT)
static const char kPrefHealthReportUploadEnabled[] =
"datareporting.healthreport.uploadEnabled";
#endif // defined(MOZ_BLOCK_PROFILE_DOWNGRADE) || defined(MOZ_LAUNCHER_PROCESS)
// || defined(MOZ_DEFAULT_BROWSER_AGENT)
#if defined(MOZ_DEFAULT_BROWSER_AGENT)
static const char kPrefDefaultAgentEnabled[] = "default-browser-agent.enabled";
static const char kPrefServicesSettingsServer[] = "services.settings.server";
static const char kPrefSetDefaultBrowserUserChoicePref[] =
"browser.shell.setDefaultBrowserUserChoice";
#endif // defined(MOZ_DEFAULT_BROWSER_AGENT)
#if defined(XP_WIN)
static const char kPrefThemeId[] = "extensions.activeThemeID";
static const char kPrefBrowserStartupBlankWindow[] =
"browser.startup.blankWindow";
static const char kPrefPreXulSkeletonUI[] = "browser.startup.preXulSkeletonUI";
#endif // defined(XP_WIN)
#if defined(MOZ_WIDGET_GTK)
constexpr nsLiteralCString kStartupTokenNames[] = {
"XDG_ACTIVATION_TOKEN"_ns,
"DESKTOP_STARTUP_ID"_ns,
};
#endif
int gArgc;
char** gArgv;
static const char gToolkitVersion[] = MOZ_STRINGIFY(GRE_MILESTONE);
// The gToolkitBuildID global is defined to MOZ_BUILDID via gen_buildid.py
// in toolkit/library. See related comment in toolkit/library/moz.build.
extern const char gToolkitBuildID[];
static nsIProfileLock* gProfileLock;
#if defined(MOZ_HAS_REMOTE)
MOZ_RUNINIT static RefPtr<nsRemoteService> gRemoteService;
MOZ_RUNINIT static RefPtr<nsStartupLock> gStartupLock;
#endif
int gRestartArgc;
char** gRestartArgv;
// If gRestartedByOS is set, we were automatically restarted by the OS.
bool gRestartedByOS = false;
bool gIsGtest = false;
bool gKioskMode = false;
int gKioskMonitor = -1;
bool gAllowContentAnalysisArgPresent = false;
MOZ_CONSTINIT nsString gAbsoluteArgv0Path;
#if defined(XP_WIN)
MOZ_CONSTINIT nsString gProcessStartupShortcut;
#endif
#if defined(MOZ_WIDGET_GTK)
# include <glib.h>
# include "mozilla/WidgetUtilsGtk.h"
# include <gtk/gtk.h>
# ifdef MOZ_WAYLAND
# include <gdk/gdkwayland.h>
# include "mozilla/widget/nsWaylandDisplay.h"
# include "wayland-proxy.h"
# endif
# ifdef MOZ_X11
# include <gdk/gdkx.h>
# endif /* MOZ_X11 */
#endif
#if defined(MOZ_WAYLAND)
MOZ_RUNINIT std::unique_ptr<WaylandProxy> gWaylandProxy;
#endif
#include "BinaryPath.h"
#ifdef FUZZING
# include "FuzzerRunner.h"
namespace mozilla {
FuzzerRunner* fuzzerRunner = 0;
} // namespace mozilla
# ifdef LIBFUZZER
void XRE_LibFuzzerSetDriver(LibFuzzerDriver aDriver) {
mozilla::fuzzerRunner->setParams(aDriver);
}
# endif
#endif // FUZZING
// Undo X11/X.h's definition of None
#undef None
namespace mozilla {
int (*RunGTest)(int*, char**) = 0;
bool RunningGTest() { return RunGTest; }
} // namespace mozilla
using namespace mozilla;
using namespace mozilla::widget;
using namespace mozilla::startup;
using mozilla::Unused;
using mozilla::dom::ContentChild;
using mozilla::dom::ContentParent;
using mozilla::dom::quota::QuotaManager;
using mozilla::intl::LocaleService;
using mozilla::scache::StartupCache;
// Save the given word to the specified environment variable.
static void MOZ_NEVER_INLINE SaveWordToEnv(const char* name,
const nsACString& word) {
char* expr =
Smprintf("%s=%s", name, PromiseFlatCString(word).get()).release();
if (expr) PR_SetEnv(expr);
// We intentionally leak |expr| here since it is required by PR_SetEnv.
}
// Save the path of the given file to the specified environment variable.
static void SaveFileToEnv(const char* name, nsIFile* file) {
#ifdef XP_WIN
nsAutoString path;
file->GetPath(path);
SetEnvironmentVariableW(NS_ConvertASCIItoUTF16(name).get(), path.get());
#else
nsAutoCString path;
file->GetNativePath(path);
SaveWordToEnv(name, path);
#endif
}
static bool gIsExpectedExit = false;
void MozExpectedExit() { gIsExpectedExit = true; }
/**
* Runs atexit() to catch unexpected exit from 3rd party libraries like the
* Intel graphics driver calling exit in an error condition. When they
* call exit() to report an error we won't shutdown correctly and wont catch
* the issue with our crash reporter.
*/
static void UnexpectedExit() {
if (!gIsExpectedExit) {
gIsExpectedExit = true; // Don't risk re-entrency issues when crashing.
MOZ_CRASH("Exit called by third party code.");
}
}
#if defined(MOZ_WAYLAND)
bool IsWaylandEnabled() {
static bool isWaylandEnabled = []() {
const char* waylandDisplay = PR_GetEnv("WAYLAND_DISPLAY");
if (!waylandDisplay) {
return false;
}
if (!PR_GetEnv("DISPLAY")) {
// No X11 display, so try to run wayland.
return true;
}
// MOZ_ENABLE_WAYLAND is our primary Wayland on/off switch.
if (const char* waylandPref = PR_GetEnv("MOZ_ENABLE_WAYLAND")) {
return *waylandPref == '1';
}
if (const char* backendPref = PR_GetEnv("GDK_BACKEND")) {
if (!strncmp(backendPref, "wayland", 7)) {
NS_WARNING(
"Wayland backend should be enabled by MOZ_ENABLE_WAYLAND=1."
"GDK_BACKEND is a Gtk3 debug variable and may cause issues.");
return true;
}
}
// Enable by default when we're running on a recent enough GTK version. We'd
// like to check further details like compositor version and so on ideally
// to make sure we don't enable it on old Mutter or what not, but we can't,
// so let's assume that if the user is running on a Wayland session by
// default we're ok, since either the distro has enabled Wayland by default,
// or the user has gone out of their way to use Wayland.
return !gtk_check_version(3, 24, 30);
}();
return isWaylandEnabled;
}
#else
bool IsWaylandEnabled() { return false; }
#endif
/**
* Output a string to the user. This method is really only meant to be used to
* output last-ditch error messages designed for developers NOT END USERS.
*
* @param isError
* Pass true to indicate severe errors.
* @param fmt
* printf-style format string followed by arguments.
*/
static MOZ_FORMAT_PRINTF(2, 3) void Output(bool isError, const char* fmt, ...) {
va_list ap;
va_start(ap, fmt);
#if defined(XP_WIN) && !MOZ_WINCONSOLE
SmprintfPointer msg = mozilla::Vsmprintf(fmt, ap);
if (msg) {
UINT flags = MB_OK;
if (isError)
flags |= MB_ICONERROR;
else
flags |= MB_ICONINFORMATION;
wchar_t wide_msg[1024];
MultiByteToWideChar(CP_ACP, 0, msg.get(), -1, wide_msg,
sizeof(wide_msg) / sizeof(wchar_t));
wchar_t wide_caption[128];
MultiByteToWideChar(CP_ACP, 0, gAppData ? gAppData->name : "XULRunner", -1,
wide_caption, sizeof(wide_caption) / sizeof(wchar_t));
MessageBoxW(nullptr, wide_msg, wide_caption, flags);
}
#elif defined(MOZ_WIDGET_ANDROID)
SmprintfPointer msg = mozilla::Vsmprintf(fmt, ap);
if (msg) {
__android_log_print(isError ? ANDROID_LOG_ERROR : ANDROID_LOG_INFO,
"GeckoRuntime", "%s", msg.get());
}
#else
vfprintf(stderr, fmt, ap);
#endif
va_end(ap);
}
/**
* Check for a commandline flag. If the flag takes a parameter, the
* parameter is returned in aParam. Flags may be in the form -arg or
* --arg (or /arg on win32).
*
* @param aArg the parameter to check. Must be lowercase.
* @param aParam if non-null, the -arg <data> will be stored in this pointer.
* This is *not* allocated, but rather a pointer to the argv data.
* @param aFlags flags @see CheckArgFlag
*/
static ArgResult CheckArg(const char* aArg, const char** aParam = nullptr,
CheckArgFlag aFlags = CheckArgFlag::RemoveArg) {
MOZ_ASSERT(gArgv, "gArgv must be initialized before CheckArg()");
return CheckArg(gArgc, gArgv, aArg, aParam, aFlags);
}
/**
* Check for a commandline flag. Ignore data that's passed in with the flag.
* Flags may be in the form -arg or --arg (or /arg on win32).
* Will not remove flag if found.
*
* @param aArg the parameter to check. Must be lowercase.
*/
static ArgResult CheckArgExists(const char* aArg) {
return CheckArg(aArg, nullptr, CheckArgFlag::None);
}
bool gSafeMode = false;
bool gFxREmbedded = false;
enum E10sStatus {
kE10sEnabledByDefault,
kE10sForceDisabled,
};
static bool gBrowserTabsRemoteAutostart = false;
static E10sStatus gBrowserTabsRemoteStatus;
static bool gBrowserTabsRemoteAutostartInitialized = false;
namespace mozilla {
bool BrowserTabsRemoteAutostart() {
if (gBrowserTabsRemoteAutostartInitialized) {
return gBrowserTabsRemoteAutostart;
}
gBrowserTabsRemoteAutostartInitialized = true;
// If we're not in the parent process, we are running E10s.
if (!XRE_IsParentProcess()) {
gBrowserTabsRemoteAutostart = true;
return gBrowserTabsRemoteAutostart;
}
gBrowserTabsRemoteAutostart = true;
E10sStatus status = kE10sEnabledByDefault;
// We are checking to ensure that either MOZILLA_OFFICIAL is undefined or that
// xpc::AreNonLocalConnectionsDisabled() is true. If either check matches,
// we move on to check the MOZ_FORCE_DISABLE_E10S environment variable which
// must equal "1" to proceed with disabling e10s.
#if defined(MOZILLA_OFFICIAL)
bool allowDisablingE10s = xpc::AreNonLocalConnectionsDisabled();
#else
bool allowDisablingE10s = true;
#endif
if (gBrowserTabsRemoteAutostart && allowDisablingE10s) {
const char* forceDisable = PR_GetEnv("MOZ_FORCE_DISABLE_E10S");
if (forceDisable && !strcmp(forceDisable, "1")) {
gBrowserTabsRemoteAutostart = false;
status = kE10sForceDisabled;
}
}
gBrowserTabsRemoteStatus = status;
return gBrowserTabsRemoteAutostart;
}
} // namespace mozilla
// Win32k Infrastructure ==============================================
// This bool tells us if we have initialized the following two statics
// upon startup.
static bool gWin32kInitialized = false;
// Win32k Lockdown for the current session is determined once, at startup,
// and then remains the same for the duration of the session.
static nsIXULRuntime::ContentWin32kLockdownState gWin32kStatus;
// The status of the win32k experiment. It is determined once, at startup,
// and then remains the same for the duration of the session.
static nsIXULRuntime::ExperimentStatus gWin32kExperimentStatus =
nsIXULRuntime::eExperimentStatusUnenrolled;
#ifdef XP_WIN
// The states for win32k lockdown can be generalized to:
// - User doesn't meet requirements (bad OS, webrender, remotegl) aka
// PersistentRequirement
// - User has Safe Mode enabled, Win32k Disabled by Env Var, or E10S disabled
// by Env Var aka TemporaryRequirement
// - User has set the win32k pref to something non-default aka NonDefaultPref
// - User has been enrolled in the experiment and does what it says aka
// Enrolled
// - User does the default aka Default
//
// We expect the below behvaior. In the code, there may be references to these
// behaviors (e.g. [A]) but not always.
//
// [A] Becoming enrolled in the experiment while NonDefaultPref disqualifies
// you upon next browser start
// [B] Becoming enrolled in the experiment while PersistentRequirement
// disqualifies you upon next browser start
// [C] Becoming enrolled in the experiment while TemporaryRequirement does not
// disqualify you
// [D] Becoming enrolled in the experiment will only take effect after restart
// [E] While enrolled, becoming PersistentRequirement will not disqualify you
// until browser restart, but if the state is present at browser start,
// will disqualify you. Additionally, it will not affect the session value
// of gWin32kStatus.
// XXX(bobowen): I hope both webrender and wbgl.out-of-process require a
// restart to take effect!
// [F] While enrolled, becoming NonDefaultPref will disqualify you upon next
// browser start
// [G] While enrolled, becoming TemporaryRequirement will _not_ disqualify you,
// but the session status will prevent win32k lockdown from taking effect.
// The win32k pref
static const char kPrefWin32k[] = "security.sandbox.content.win32k-disable";
// The current enrollment status as controlled by Normandy. This value is only
// stored in the default preference branch, and is not persisted across
// sessions by the preference service. It therefore isn't available early
// enough at startup, and needs to be synced to a preference in the user
// branch which is persisted across sessions.
static const char kPrefWin32kExperimentEnrollmentStatus[] =
"security.sandbox.content.win32k-experiment.enrollmentStatus";
// The enrollment status to be used at browser startup. This automatically
// synced from the above enrollmentStatus preference whenever the latter is
// changed. We reused the Fission experiment enum - it can have any of the
// values defined in the `nsIXULRuntime_ExperimentStatus` enum _except_ rollout.
// Meanings are documented in the declaration of
// `nsIXULRuntime.fissionExperimentStatus`
static const char kPrefWin32kExperimentStartupEnrollmentStatus[] =
"security.sandbox.content.win32k-experiment.startupEnrollmentStatus";
namespace mozilla {
bool Win32kExperimentEnrolled() {
MOZ_ASSERT(XRE_IsParentProcess());
return gWin32kExperimentStatus == nsIXULRuntime::eExperimentStatusControl ||
gWin32kExperimentStatus == nsIXULRuntime::eExperimentStatusTreatment;
}
} // namespace mozilla
static bool Win32kRequirementsUnsatisfied(
nsIXULRuntime::ContentWin32kLockdownState aStatus) {
return aStatus == nsIXULRuntime::ContentWin32kLockdownState::
OperatingSystemNotSupported ||
aStatus ==
nsIXULRuntime::ContentWin32kLockdownState::MissingWebRender ||
aStatus ==
nsIXULRuntime::ContentWin32kLockdownState::MissingRemoteWebGL ||
aStatus ==
nsIXULRuntime::ContentWin32kLockdownState::DecodersArentRemote;
}
static void Win32kExperimentDisqualify() {
MOZ_ASSERT(XRE_IsParentProcess());
Preferences::SetUint(kPrefWin32kExperimentEnrollmentStatus,
nsIXULRuntime::eExperimentStatusDisqualified);
}
static void OnWin32kEnrollmentStatusChanged(const char* aPref, void* aData) {
auto newStatusInt =
Preferences::GetUint(kPrefWin32kExperimentEnrollmentStatus,
nsIXULRuntime::eExperimentStatusUnenrolled);
auto newStatus = newStatusInt < nsIXULRuntime::eExperimentStatusCount
? nsIXULRuntime::ExperimentStatus(newStatusInt)
: nsIXULRuntime::eExperimentStatusDisqualified;
// Set the startup pref for next browser start [D]
Preferences::SetUint(kPrefWin32kExperimentStartupEnrollmentStatus, newStatus);
}
namespace {
// This observer is notified during `profile-before-change`, and ensures that
// the experiment enrollment status is synced over before the browser shuts
// down, even if it was not modified since win32k was initialized.
class Win32kEnrollmentStatusShutdownObserver final : public nsIObserver {
public:
NS_DECL_ISUPPORTS
NS_IMETHOD Observe(nsISupports* aSubject, const char* aTopic,
const char16_t* aData) override {
MOZ_ASSERT(!strcmp("profile-before-change", aTopic));
OnWin32kEnrollmentStatusChanged(kPrefWin32kExperimentEnrollmentStatus,
nullptr);
return NS_OK;
}
private:
~Win32kEnrollmentStatusShutdownObserver() = default;
};
NS_IMPL_ISUPPORTS(Win32kEnrollmentStatusShutdownObserver, nsIObserver)
} // namespace
static void OnWin32kChanged(const char* aPref, void* aData) {
// If we're actively enrolled in the Win32k experiment, disqualify the user
// from the experiment if the Win32k pref is modified. [F]
if (Win32kExperimentEnrolled() && Preferences::HasUserValue(kPrefWin32k)) {
Win32kExperimentDisqualify();
}
}
#endif // XP_WIN
namespace mozilla {
void EnsureWin32kInitialized();
}
nsIXULRuntime::ContentWin32kLockdownState GetLiveWin32kLockdownState() {
#ifdef XP_WIN
// HasUserValue The Pref functions can only be called on main thread
MOZ_ASSERT(NS_IsMainThread());
# ifdef MOZ_BACKGROUNDTASKS
if (BackgroundTasks::IsBackgroundTaskMode()) {
// Let's bail out before loading all the graphics libs.
return nsIXULRuntime::ContentWin32kLockdownState::DisabledByDefault;
}
# endif
mozilla::EnsureWin32kInitialized();
gfxPlatform::GetPlatform();
if (gSafeMode) {
return nsIXULRuntime::ContentWin32kLockdownState::DisabledBySafeMode;
}
if (EnvHasValue("MOZ_ENABLE_WIN32K")) {
return nsIXULRuntime::ContentWin32kLockdownState::DisabledByEnvVar;
}
if (!mozilla::BrowserTabsRemoteAutostart()) {
return nsIXULRuntime::ContentWin32kLockdownState::DisabledByE10S;
}
// Win32k lockdown is available on Win8+, but we are initially limiting it to
// Windows 10 v1709 (build 16299) or later. Before this COM initialization
// currently fails if user32.dll has loaded before it is called.
if (!IsWin10FallCreatorsUpdateOrLater()) {
return nsIXULRuntime::ContentWin32kLockdownState::
OperatingSystemNotSupported;
}
{
ConflictingMitigationStatus conflictingMitigationStatus = {};
if (!detect_win32k_conflicting_mitigations(&conflictingMitigationStatus)) {
return nsIXULRuntime::ContentWin32kLockdownState::
IncompatibleMitigationPolicy;
}
if (conflictingMitigationStatus.caller_check ||
conflictingMitigationStatus.sim_exec ||
conflictingMitigationStatus.stack_pivot) {
return nsIXULRuntime::ContentWin32kLockdownState::
IncompatibleMitigationPolicy;
}
}
// Win32k Lockdown requires Remote WebGL, but it may be disabled on
// certain hardware or virtual machines.
if (!gfx::gfxVars::AllowWebglOop() || !StaticPrefs::webgl_out_of_process()) {
return nsIXULRuntime::ContentWin32kLockdownState::MissingRemoteWebGL;
}
// Some (not sure exactly which) decoders are not compatible
if (!PDMFactory::AllDecodersAreRemote()) {
return nsIXULRuntime::ContentWin32kLockdownState::DecodersArentRemote;
}
bool prefSetByUser =
Preferences::HasUserValue("security.sandbox.content.win32k-disable");
bool prefValue = Preferences::GetBool(
"security.sandbox.content.win32k-disable", false, PrefValueKind::User);
bool defaultValue = Preferences::GetBool(
"security.sandbox.content.win32k-disable", false, PrefValueKind::Default);
if (prefSetByUser) {
if (prefValue) {
return nsIXULRuntime::ContentWin32kLockdownState::EnabledByUserPref;
} else {
return nsIXULRuntime::ContentWin32kLockdownState::DisabledByUserPref;
}
}
if (gWin32kExperimentStatus ==
nsIXULRuntime::ExperimentStatus::eExperimentStatusControl) {
return nsIXULRuntime::ContentWin32kLockdownState::DisabledByControlGroup;
} else if (gWin32kExperimentStatus ==
nsIXULRuntime::ExperimentStatus::eExperimentStatusTreatment) {
return nsIXULRuntime::ContentWin32kLockdownState::EnabledByTreatmentGroup;
}
if (defaultValue) {
return nsIXULRuntime::ContentWin32kLockdownState::EnabledByDefault;
} else {
return nsIXULRuntime::ContentWin32kLockdownState::DisabledByDefault;
}
#else
return nsIXULRuntime::ContentWin32kLockdownState::OperatingSystemNotSupported;
#endif
}
namespace mozilla {
void EnsureWin32kInitialized() {
if (gWin32kInitialized) {
return;
}
gWin32kInitialized = true;
#ifdef XP_WIN
// Initialize the Win32k experiment, configuring win32k's
// default, before checking other overrides. This allows opting-out of a
// Win32k experiment through about:preferences or about:config from a
// safemode session.
uint32_t experimentRaw =
Preferences::GetUint(kPrefWin32kExperimentStartupEnrollmentStatus,
nsIXULRuntime::eExperimentStatusUnenrolled);
gWin32kExperimentStatus =
experimentRaw < nsIXULRuntime::eExperimentStatusCount
? nsIXULRuntime::ExperimentStatus(experimentRaw)
: nsIXULRuntime::eExperimentStatusDisqualified;
// Watch the experiment enrollment status pref to detect experiment
// disqualification, and ensure it is propagated for the next restart.
Preferences::RegisterCallback(&OnWin32kEnrollmentStatusChanged,
kPrefWin32kExperimentEnrollmentStatus);
if (nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService()) {
nsCOMPtr<nsIObserver> shutdownObserver =
new Win32kEnrollmentStatusShutdownObserver();
observerService->AddObserver(shutdownObserver, "profile-before-change",
false);
}
// If the user no longer qualifies because they edited a required pref, check
// that. [B] [E]
auto tmpStatus = GetLiveWin32kLockdownState();
if (Win32kExperimentEnrolled() && Win32kRequirementsUnsatisfied(tmpStatus)) {
Win32kExperimentDisqualify();
gWin32kExperimentStatus = nsIXULRuntime::eExperimentStatusDisqualified;
}
// If the user has overridden an active experiment by setting a user value for
// "security.sandbox.content.win32k-disable", disqualify the user from the
// experiment. [A] [F]
if (Preferences::HasUserValue(kPrefWin32k) && Win32kExperimentEnrolled()) {
Win32kExperimentDisqualify();
gWin32kExperimentStatus = nsIXULRuntime::eExperimentStatusDisqualified;
}
// Unlike Fission, we do not configure the default branch based on experiment
// enrollment status. Instead we check the startupEnrollmentPref in
// GetContentWin32kLockdownState()
Preferences::RegisterCallback(&OnWin32kChanged, kPrefWin32k);
// Set the state
gWin32kStatus = GetLiveWin32kLockdownState();
#else
gWin32kStatus =
nsIXULRuntime::ContentWin32kLockdownState::OperatingSystemNotSupported;
gWin32kExperimentStatus = nsIXULRuntime::eExperimentStatusUnenrolled;
#endif // XP_WIN
}
nsIXULRuntime::ContentWin32kLockdownState GetWin32kLockdownState() {
#ifdef XP_WIN
mozilla::EnsureWin32kInitialized();
return gWin32kStatus;
#else
return nsIXULRuntime::ContentWin32kLockdownState::OperatingSystemNotSupported;
#endif
}
} // namespace mozilla
// End Win32k Infrastructure ==========================================
// Fission Infrastructure =============================================
// Fission enablement for the current session is determined once, at startup,
// and then remains the same for the duration of the session.
//
// The following factors determine whether or not Fission is enabled for a
// session, in order of precedence:
//
// - Safe mode: In safe mode, Fission is never enabled.
//
// - The MOZ_FORCE_ENABLE_FISSION environment variable: If set to any value,
// Fission will be enabled.
//
// - The 'fission.autostart' preference, if it has been configured by the user.
static const char kPrefFissionAutostart[] = "fission.autostart";
// The computed FissionAutostart value for the session, read by content
// processes to initialize gFissionAutostart.
//
// This pref is locked, and only configured on the default branch, so should
// never be persisted in a profile.
static const char kPrefFissionAutostartSession[] = "fission.autostart.session";
//
// The computed FissionAutostart value for the session, read by content
// processes to initialize gFissionAutostart.
static bool gFissionAutostart = false;
static bool gFissionAutostartInitialized = false;
static nsIXULRuntime::FissionDecisionStatus gFissionDecisionStatus;
static void EnsureFissionAutostartInitialized() {
if (gFissionAutostartInitialized) {
return;
}
gFissionAutostartInitialized = true;
if (!XRE_IsParentProcess()) {
// This pref is configured for the current session by the parent process.
gFissionAutostart = Preferences::GetBool(kPrefFissionAutostartSession,
false, PrefValueKind::Default);
return;
}
if (!BrowserTabsRemoteAutostart()) {
gFissionAutostart = false;
if (gBrowserTabsRemoteStatus == kE10sForceDisabled) {
gFissionDecisionStatus = nsIXULRuntime::eFissionDisabledByE10sEnv;
} else {
gFissionDecisionStatus = nsIXULRuntime::eFissionDisabledByE10sOther;
}
} else if (EnvHasValue("MOZ_FORCE_ENABLE_FISSION")) {
gFissionAutostart = true;
gFissionDecisionStatus = nsIXULRuntime::eFissionEnabledByEnv;
} else if (EnvHasValue("MOZ_FORCE_DISABLE_FISSION")) {
gFissionAutostart = false;
gFissionDecisionStatus = nsIXULRuntime::eFissionDisabledByEnv;
} else {
// NOTE: This will take into account changes to the default due to
// `InitializeFissionExperimentStatus`.
gFissionAutostart = Preferences::GetBool(kPrefFissionAutostart, false);
if (Preferences::HasUserValue(kPrefFissionAutostart)) {
gFissionDecisionStatus = gFissionAutostart
? nsIXULRuntime::eFissionEnabledByUserPref
: nsIXULRuntime::eFissionDisabledByUserPref;
} else {
gFissionDecisionStatus = gFissionAutostart
? nsIXULRuntime::eFissionEnabledByDefault
: nsIXULRuntime::eFissionDisabledByDefault;
}
}
// Content processes cannot run the same logic as we're running in the parent
// process, as the current value of various preferences may have changed
// between launches. Instead, the content process will read the default branch
// of the locked `fission.autostart.session` preference to determine the value
// determined by this method.
Preferences::Unlock(kPrefFissionAutostartSession);
Preferences::ClearUser(kPrefFissionAutostartSession);
Preferences::SetBool(kPrefFissionAutostartSession, gFissionAutostart,
PrefValueKind::Default);
Preferences::Lock(kPrefFissionAutostartSession);
}
namespace mozilla {
bool FissionAutostart() {
EnsureFissionAutostartInitialized();
return gFissionAutostart;
}
} // namespace mozilla
// End Fission Infrastructure =========================================
namespace mozilla {
bool SessionHistoryInParent() {
return FissionAutostart() ||
!StaticPrefs::
fission_disableSessionHistoryInParent_AtStartup_DoNotUseDirectly();
}
bool SessionStorePlatformCollection() {
return SessionHistoryInParent() &&
!StaticPrefs::
browser_sessionstore_disable_platform_collection_AtStartup_DoNotUseDirectly();
}
bool BFCacheInParent() {
return SessionHistoryInParent() &&
StaticPrefs::fission_bfcacheInParent_DoNotUseDirectly();
}
} // namespace mozilla
/**
* The nsXULAppInfo object implements nsIFactory so that it can be its own
* singleton.
*/
class nsXULAppInfo : public nsIXULAppInfo,
#ifdef XP_WIN
public nsIWinAppHelper,
#endif
public nsICrashReporter,
public nsIFinishDumpingCallback,
public nsIXULRuntime
{
public:
constexpr nsXULAppInfo() = default;
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIPLATFORMINFO
NS_DECL_NSIXULAPPINFO
NS_DECL_NSIXULRUNTIME
NS_DECL_NSICRASHREPORTER
NS_DECL_NSIFINISHDUMPINGCALLBACK
#ifdef XP_WIN
NS_DECL_NSIWINAPPHELPER
#endif
};
NS_INTERFACE_MAP_BEGIN(nsXULAppInfo)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXULRuntime)
NS_INTERFACE_MAP_ENTRY(nsIXULRuntime)
#ifdef XP_WIN
NS_INTERFACE_MAP_ENTRY(nsIWinAppHelper)
#endif
NS_INTERFACE_MAP_ENTRY(nsICrashReporter)
NS_INTERFACE_MAP_ENTRY(nsIFinishDumpingCallback)
NS_INTERFACE_MAP_ENTRY(nsIPlatformInfo)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIXULAppInfo,
gAppData || XRE_IsContentProcess())
NS_INTERFACE_MAP_END
NS_IMETHODIMP_(MozExternalRefCountType)
nsXULAppInfo::AddRef() { return 1; }
NS_IMETHODIMP_(MozExternalRefCountType)
nsXULAppInfo::Release() { return 1; }
NS_IMETHODIMP
nsXULAppInfo::GetVendor(nsACString& aResult) {
if (XRE_IsContentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
aResult = cc->GetAppInfo().vendor;
return NS_OK;
}
aResult.Assign(gAppData->vendor);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetName(nsACString& aResult) {
if (XRE_IsContentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
aResult = cc->GetAppInfo().name;
return NS_OK;
}
#ifdef MOZ_WIDGET_ANDROID
nsCString name = java::GeckoAppShell::GetAppName()->ToCString();
aResult.Assign(std::move(name));
#else
aResult.Assign(gAppData->name);
#endif
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetID(nsACString& aResult) {
if (XRE_IsContentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
aResult = cc->GetAppInfo().ID;
return NS_OK;
}
aResult.Assign(gAppData->ID);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetVersion(nsACString& aResult) {
if (XRE_IsContentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
aResult = cc->GetAppInfo().version;
return NS_OK;
}
aResult.Assign(gAppData->version);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetPlatformVersion(nsACString& aResult) {
aResult.Assign(gToolkitVersion);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetAppBuildID(nsACString& aResult) {
if (XRE_IsContentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
aResult = cc->GetAppInfo().buildID;
return NS_OK;
}
aResult.Assign(gAppData->buildID);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetPlatformBuildID(nsACString& aResult) {
aResult.Assign(gToolkitBuildID);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetUAName(nsACString& aResult) {
if (XRE_IsContentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
aResult = cc->GetAppInfo().UAName;
return NS_OK;
}
aResult.Assign(gAppData->UAName);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetSourceURL(nsACString& aResult) {
if (XRE_IsContentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
aResult = cc->GetAppInfo().sourceURL;
return NS_OK;
}
aResult.Assign(gAppData->sourceURL);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetUpdateURL(nsACString& aResult) {
if (XRE_IsContentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
aResult = cc->GetAppInfo().updateURL;
return NS_OK;
}
aResult.Assign(gAppData->updateURL);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetLogConsoleErrors(bool* aResult) {
*aResult = gLogConsoleErrors;
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::SetLogConsoleErrors(bool aValue) {
gLogConsoleErrors = aValue;
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetInSafeMode(bool* aResult) {
*aResult = gSafeMode;
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetOS(nsACString& aResult) {
aResult.AssignLiteral(OS_TARGET);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetXPCOMABI(nsACString& aResult) {
#ifdef TARGET_XPCOM_ABI
aResult.AssignLiteral(TARGET_XPCOM_ABI);
return NS_OK;
#else
return NS_ERROR_NOT_AVAILABLE;
#endif
}
NS_IMETHODIMP
nsXULAppInfo::GetWidgetToolkit(nsACString& aResult) {
aResult.AssignLiteral(MOZ_WIDGET_TOOLKIT);
return NS_OK;
}
// Ensure that the GeckoProcessType enum, defined in xpcom/build/nsXULAppAPI.h,
// is synchronized with the const unsigned longs defined in
// xpcom/system/nsIXULRuntime.idl.
#define GECKO_PROCESS_TYPE(enum_value, enum_name, string_name, proc_typename, \
process_bin_type, procinfo_typename, \
webidl_typename, allcaps_name) \
static_assert(nsIXULRuntime::PROCESS_TYPE_##allcaps_name == \
static_cast<int>(GeckoProcessType_##enum_name), \
"GeckoProcessType in nsXULAppAPI.h not synchronized with " \
"nsIXULRuntime.idl");
#include "mozilla/GeckoProcessTypes.h"
#undef GECKO_PROCESS_TYPE
// .. and ensure that that is all of them:
static_assert(GeckoProcessType_Utility + 1 == GeckoProcessType_End,
"Did not find the final GeckoProcessType");
NS_IMETHODIMP
nsXULAppInfo::GetProcessType(uint32_t* aResult) {
NS_ENSURE_ARG_POINTER(aResult);
*aResult = XRE_GetProcessType();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetProcessID(uint32_t* aResult) {
#ifdef XP_WIN
*aResult = GetCurrentProcessId();
#else
*aResult = getpid();
#endif
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetUniqueProcessID(uint64_t* aResult) {
if (XRE_IsContentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
*aResult = cc->GetID();
} else {
*aResult = 0;
}
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetRemoteType(nsACString& aRemoteType) {
if (XRE_IsContentProcess()) {
aRemoteType = ContentChild::GetSingleton()->GetRemoteType();
} else {
aRemoteType = NOT_REMOTE_TYPE;
}
return NS_OK;
}
MOZ_CONSTINIT static nsCString gLastAppVersion;
MOZ_CONSTINIT static nsCString gLastAppBuildID;
NS_IMETHODIMP
nsXULAppInfo::GetLastAppVersion(nsACString& aResult) {
if (XRE_IsContentProcess()) {
return NS_ERROR_NOT_AVAILABLE;
}
if (!gLastAppVersion.IsVoid() && gLastAppVersion.IsEmpty()) {
NS_WARNING("Attempt to retrieve lastAppVersion before it has been set.");
return NS_ERROR_NOT_AVAILABLE;
}
aResult.Assign(gLastAppVersion);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetLastAppBuildID(nsACString& aResult) {
if (XRE_IsContentProcess()) {
return NS_ERROR_NOT_AVAILABLE;
}
if (!gLastAppBuildID.IsVoid() && gLastAppBuildID.IsEmpty()) {
NS_WARNING("Attempt to retrieve lastAppBuildID before it has been set.");
return NS_ERROR_NOT_AVAILABLE;
}
aResult.Assign(gLastAppBuildID);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetFissionAutostart(bool* aResult) {
*aResult = FissionAutostart();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetWin32kExperimentStatus(ExperimentStatus* aResult) {
if (!XRE_IsParentProcess()) {
return NS_ERROR_NOT_AVAILABLE;
}
EnsureWin32kInitialized();
*aResult = gWin32kExperimentStatus;
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetWin32kLiveStatusTestingOnly(
nsIXULRuntime::ContentWin32kLockdownState* aResult) {
if (!XRE_IsParentProcess()) {
return NS_ERROR_NOT_AVAILABLE;
}
EnsureWin32kInitialized();
*aResult = GetLiveWin32kLockdownState();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetWin32kSessionStatus(
nsIXULRuntime::ContentWin32kLockdownState* aResult) {
if (!XRE_IsParentProcess()) {
return NS_ERROR_NOT_AVAILABLE;
}
EnsureWin32kInitialized();
*aResult = gWin32kStatus;
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetFissionDecisionStatus(FissionDecisionStatus* aResult) {
if (!XRE_IsParentProcess()) {
return NS_ERROR_NOT_AVAILABLE;
}
EnsureFissionAutostartInitialized();
MOZ_ASSERT(gFissionDecisionStatus != eFissionStatusUnknown);
*aResult = gFissionDecisionStatus;
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetFissionDecisionStatusString(nsACString& aResult) {
if (!XRE_IsParentProcess()) {
return NS_ERROR_NOT_AVAILABLE;
}
EnsureFissionAutostartInitialized();
switch (gFissionDecisionStatus) {
case eFissionDisabledByE10sEnv:
aResult = "disabledByE10sEnv";
break;
case eFissionEnabledByEnv:
aResult = "enabledByEnv";
break;
case eFissionDisabledByEnv:
aResult = "disabledByEnv";
break;
case eFissionEnabledByDefault:
aResult = "enabledByDefault";
break;
case eFissionDisabledByDefault:
aResult = "disabledByDefault";
break;
case eFissionEnabledByUserPref:
aResult = "enabledByUserPref";
break;
case eFissionDisabledByUserPref:
aResult = "disabledByUserPref";
break;
case eFissionDisabledByE10sOther:
aResult = "disabledByE10sOther";
break;
default:
MOZ_ASSERT_UNREACHABLE("Unexpected enum value");
}
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetSessionHistoryInParent(bool* aResult) {
*aResult = SessionHistoryInParent();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetSessionStorePlatformCollection(bool* aResult) {
*aResult = SessionStorePlatformCollection();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetBrowserTabsRemoteAutostart(bool* aResult) {
*aResult = BrowserTabsRemoteAutostart();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetMaxWebProcessCount(uint32_t* aResult) {
*aResult = mozilla::GetMaxWebProcessCount();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetAccessibilityEnabled(bool* aResult) {
#ifdef ACCESSIBILITY
*aResult = GetAccService() != nullptr;
#else
*aResult = false;
#endif
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetAccessibilityInstantiator(nsAString& aInstantiator) {
#if defined(ACCESSIBILITY) && defined(XP_WIN)
if (!GetAccService()) {
aInstantiator.Truncate();
return NS_OK;
}
nsAutoString ipClientInfo;
a11y::Compatibility::GetHumanReadableConsumersStr(ipClientInfo);
aInstantiator.Append(ipClientInfo);
aInstantiator.AppendLiteral("|");
nsCOMPtr<nsIFile> oopClientExe;
if (a11y::GetInstantiator(getter_AddRefs(oopClientExe))) {
nsAutoString oopClientInfo;
if (NS_SUCCEEDED(oopClientExe->GetPath(oopClientInfo))) {
aInstantiator.Append(oopClientInfo);
}
}
#else
aInstantiator.Truncate();
#endif
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetIs64Bit(bool* aResult) {
#ifdef HAVE_64BIT_BUILD
*aResult = true;
#else
*aResult = false;
#endif
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetIsTextRecognitionSupported(bool* aResult) {
*aResult = widget::TextRecognition::IsSupported();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::InvalidateCachesOnRestart() {
nsCOMPtr<nsIFile> file;
nsresult rv =
NS_GetSpecialDirectory(NS_APP_PROFILE_DIR_STARTUP, getter_AddRefs(file));
if (NS_FAILED(rv)) return rv;
if (!file) return NS_ERROR_NOT_AVAILABLE;
file->AppendNative(FILE_COMPATIBILITY_INFO);
nsINIParser parser;
rv = parser.Init(file);
if (NS_FAILED(rv)) {
// This fails if compatibility.ini is not there, so we'll
// flush the caches on the next restart anyways.
return NS_OK;
}
nsAutoCString buf;
rv = parser.GetString("Compatibility", "InvalidateCaches", buf);
if (NS_FAILED(rv)) {
PRFileDesc* fd;
rv = file->OpenNSPRFileDesc(PR_RDWR | PR_APPEND, 0600, &fd);
if (NS_FAILED(rv)) {
NS_ERROR("could not create output stream");
return NS_ERROR_NOT_AVAILABLE;
}
static const char kInvalidationHeader[] =
NS_LINEBREAK "InvalidateCaches=1" NS_LINEBREAK;
PR_Write(fd, kInvalidationHeader, sizeof(kInvalidationHeader) - 1);
PR_Close(fd);
}
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetReplacedLockTime(PRTime* aReplacedLockTime) {
if (!gProfileLock) return NS_ERROR_NOT_AVAILABLE;
gProfileLock->GetReplacedLockTime(aReplacedLockTime);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetDefaultUpdateChannel(nsACString& aResult) {
aResult.AssignLiteral(MOZ_STRINGIFY(MOZ_UPDATE_CHANNEL));
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetDistributionID(nsACString& aResult) {
aResult.AssignLiteral(MOZ_DISTRIBUTION_ID);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetWindowsDLLBlocklistStatus(bool* aResult) {
#if defined(HAS_DLL_BLOCKLIST)
*aResult = DllBlocklist_CheckStatus();
#else
*aResult = false;
#endif
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetRestartedByOS(bool* aResult) {
*aResult = gRestartedByOS;
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetChromeColorSchemeIsDark(bool* aResult) {
PreferenceSheet::EnsureInitialized();
*aResult = PreferenceSheet::ColorSchemeForChrome() == ColorScheme::Dark;
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetContentThemeDerivedColorSchemeIsDark(bool* aResult) {
*aResult =
PreferenceSheet::ThemeDerivedColorSchemeForContent() == ColorScheme::Dark;
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetPrefersReducedMotion(bool* aResult) {
*aResult =
LookAndFeel::GetInt(LookAndFeel::IntID::PrefersReducedMotion, 0) == 1;
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetDrawInTitlebar(bool* aResult) {
*aResult = LookAndFeel::DrawInTitlebar();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetDesktopEnvironment(nsACString& aDesktopEnvironment) {
#ifdef MOZ_WIDGET_GTK
aDesktopEnvironment.Assign(GetDesktopEnvironmentIdentifier());
#endif
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetIsWayland(bool* aResult) {
#ifdef MOZ_WIDGET_GTK
*aResult = GdkIsWaylandDisplay();
#else
*aResult = false;
#endif
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetProcessStartupShortcut(nsAString& aShortcut) {
#if defined(XP_WIN)
if (XRE_IsParentProcess()) {
aShortcut.Assign(gProcessStartupShortcut);
return NS_OK;
}
#endif
return NS_ERROR_NOT_AVAILABLE;
}
#if defined(XP_WIN) && defined(MOZ_LAUNCHER_PROCESS)
// Forward declaration
void SetupLauncherProcessPref();
static Maybe<LauncherRegistryInfo::EnabledState> gLauncherProcessState;
#endif // defined(XP_WIN) && defined(MOZ_LAUNCHER_PROCESS)
NS_IMETHODIMP
nsXULAppInfo::GetLauncherProcessState(uint32_t* aResult) {
#if defined(XP_WIN) && defined(MOZ_LAUNCHER_PROCESS)
SetupLauncherProcessPref();
if (!gLauncherProcessState) {
return NS_ERROR_UNEXPECTED;
}
*aResult = static_cast<uint32_t>(gLauncherProcessState.value());
return NS_OK;
#else
return NS_ERROR_NOT_AVAILABLE;
#endif
}
#ifdef XP_WIN
NS_IMETHODIMP
nsXULAppInfo::GetUserCanElevate(bool* aUserCanElevate) {
HANDLE rawToken;
if (!::OpenProcessToken(::GetCurrentProcess(), TOKEN_QUERY, &rawToken)) {
*aUserCanElevate = false;
return NS_OK;
}
nsAutoHandle token(rawToken);
LauncherResult<TOKEN_ELEVATION_TYPE> elevationType = GetElevationType(token);
if (elevationType.isErr()) {
*aUserCanElevate = false;
return NS_OK;
}
// The possible values returned for elevationType and their meanings are:
// TokenElevationTypeDefault: The token does not have a linked token
// (e.g. UAC disabled or a standard user, so they can't be elevated)
// TokenElevationTypeFull: The token is linked to an elevated token
// (e.g. UAC is enabled and the user is already elevated so they can't
// be elevated again)
// TokenElevationTypeLimited: The token is linked to a limited token
// (e.g. UAC is enabled and the user is not elevated, so they can be
// elevated)
*aUserCanElevate = (elevationType.inspect() == TokenElevationTypeLimited);
return NS_OK;
}
#endif
NS_IMETHODIMP
nsXULAppInfo::GetCrashReporterEnabled(bool* aEnabled) {
*aEnabled = CrashReporter::GetEnabled();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::SetEnabled(bool aEnabled) {
if (aEnabled) {
if (CrashReporter::GetEnabled()) {
// no point in erroring for double-enabling
return NS_OK;
}
nsCOMPtr<nsIFile> greBinDir;
NS_GetSpecialDirectory(NS_GRE_BIN_DIR, getter_AddRefs(greBinDir));
if (!greBinDir) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIFile> xreBinDirectory = greBinDir;
if (!xreBinDirectory) {
return NS_ERROR_FAILURE;
}
return CrashReporter::SetExceptionHandler(xreBinDirectory, true);
}
if (!CrashReporter::GetEnabled()) {
// no point in erroring for double-disabling
return NS_OK;
}
return CrashReporter::UnsetExceptionHandler();
}
NS_IMETHODIMP
nsXULAppInfo::GetServerURL(nsIURL** aServerURL) {
NS_ENSURE_ARG_POINTER(aServerURL);
if (!CrashReporter::GetEnabled()) return NS_ERROR_NOT_INITIALIZED;
nsAutoCString data;
if (!CrashReporter::GetServerURL(data)) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIURI> uri;
NS_NewURI(getter_AddRefs(uri), data);
if (!uri) return NS_ERROR_FAILURE;
nsCOMPtr<nsIURL> url;
url = do_QueryInterface(uri);
NS_ADDREF(*aServerURL = url);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::SetServerURL(nsIURL* aServerURL) {
// Only allow https or http URLs
if (!aServerURL->SchemeIs("http") && !aServerURL->SchemeIs("https")) {
return NS_ERROR_INVALID_ARG;
}
nsAutoCString spec;
nsresult rv = aServerURL->GetSpec(spec);
NS_ENSURE_SUCCESS(rv, rv);
return CrashReporter::SetServerURL(spec);
}
NS_IMETHODIMP
nsXULAppInfo::GetMinidumpPath(nsIFile** aMinidumpPath) {
if (!CrashReporter::GetEnabled()) {
return NS_ERROR_NOT_INITIALIZED;
}
nsAutoString path;
if (!CrashReporter::GetMinidumpPath(path)) {
return NS_ERROR_FAILURE;
}
return NS_NewLocalFile(path, aMinidumpPath);
}
NS_IMETHODIMP
nsXULAppInfo::SetMinidumpPath(nsIFile* aMinidumpPath) {
nsAutoString path;
nsresult rv = aMinidumpPath->GetPath(path);
NS_ENSURE_SUCCESS(rv, rv);
return CrashReporter::SetMinidumpPath(path);
}
NS_IMETHODIMP
nsXULAppInfo::GetMinidumpForID(const nsAString& aId, nsIFile** aMinidump) {
if (!CrashReporter::GetMinidumpForID(aId, aMinidump)) {
return NS_ERROR_FILE_NOT_FOUND;
}
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetExtraFileForID(const nsAString& aId, nsIFile** aExtraFile) {
if (!CrashReporter::GetExtraFileForID(aId, aExtraFile)) {
return NS_ERROR_FILE_NOT_FOUND;
}
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::AnnotateCrashReport(const nsACString& key,
const nsACString& data) {
auto annotation = CrashReporter::AnnotationFromString(key);
NS_ENSURE_TRUE(annotation.isSome(), NS_ERROR_INVALID_ARG);
CrashReporter::RecordAnnotationNSCString(*annotation, data);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::RemoveCrashReportAnnotation(const nsACString& key) {
auto annotation = CrashReporter::AnnotationFromString(key);
NS_ENSURE_TRUE(annotation.isSome(), NS_ERROR_INVALID_ARG);
CrashReporter::UnrecordAnnotation(*annotation);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::IsAnnotationAllowedForPing(const nsACString& aValue,
bool* aIsAllowed) {
auto annotation = CrashReporter::AnnotationFromString(aValue);
NS_ENSURE_TRUE(annotation.isSome(), NS_ERROR_INVALID_ARG);
*aIsAllowed = CrashReporter::IsAnnotationAllowedForPing(*annotation);
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::AppendAppNotesToCrashReport(const nsACString& data) {
return CrashReporter::AppendAppNotesToCrashReport(data);
}
NS_IMETHODIMP
nsXULAppInfo::RegisterAppMemory(uint64_t pointer, uint64_t len) {
return CrashReporter::RegisterAppMemory((void*)pointer, len);
}
NS_IMETHODIMP
nsXULAppInfo::WriteMinidumpForException(void* aExceptionInfo) {
#ifdef XP_WIN
return CrashReporter::WriteMinidumpForException(
static_cast<EXCEPTION_POINTERS*>(aExceptionInfo));
#else
return NS_ERROR_NOT_IMPLEMENTED;
#endif
}
NS_IMETHODIMP
nsXULAppInfo::AppendObjCExceptionInfoToAppNotes(void* aException) {
#ifdef XP_MACOSX
return CrashReporter::AppendObjCExceptionInfoToAppNotes(aException);
#else
return NS_ERROR_NOT_IMPLEMENTED;
#endif
}
NS_IMETHODIMP
nsXULAppInfo::GetSubmitReports(bool* aEnabled) {
return CrashReporter::GetSubmitReports(aEnabled);
}
NS_IMETHODIMP
nsXULAppInfo::SetSubmitReports(bool aEnabled) {
return CrashReporter::SetSubmitReports(aEnabled);
}
NS_IMETHODIMP
nsXULAppInfo::UpdateCrashEventsDir() {
CrashReporter::UpdateCrashEventsDir();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::SaveMemoryReport() {
if (!CrashReporter::GetEnabled()) {
return NS_ERROR_NOT_INITIALIZED;
}
nsCOMPtr<nsIFile> file;
nsresult rv = CrashReporter::GetDefaultMemoryReportFile(getter_AddRefs(file));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsString path;
file->GetPath(path);
nsCOMPtr<nsIMemoryInfoDumper> dumper =
do_GetService("@mozilla.org/memory-info-dumper;1");
if (NS_WARN_IF(!dumper)) {
return NS_ERROR_UNEXPECTED;
}
rv = dumper->DumpMemoryReportsToNamedFile(
path, this, file, true /* anonymize */, false /* minimizeMemoryUsage */);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
// This method is from nsIFInishDumpingCallback.
NS_IMETHODIMP
nsXULAppInfo::Callback(nsISupports* aData) {
nsCOMPtr<nsIFile> file = do_QueryInterface(aData);
MOZ_ASSERT(file);
CrashReporter::SetMemoryReportFile(file);
return NS_OK;
}
static const nsXULAppInfo kAppInfo;
namespace mozilla {
nsresult AppInfoConstructor(REFNSIID aIID, void** aResult) {
return const_cast<nsXULAppInfo*>(&kAppInfo)->QueryInterface(aIID, aResult);
}
} // namespace mozilla
bool gLogConsoleErrors = false;
#define NS_ENSURE_TRUE_LOG(x, ret) \
PR_BEGIN_MACRO \
if (MOZ_UNLIKELY(!(x))) { \
NS_WARNING("NS_ENSURE_TRUE(" #x ") failed"); \
gLogConsoleErrors = true; \
return ret; \
} \
PR_END_MACRO
#define NS_ENSURE_SUCCESS_LOG(res, ret) \
NS_ENSURE_TRUE_LOG(NS_SUCCEEDED(res), ret)
/**
* Because we're starting/stopping XPCOM several times in different scenarios,
* this class is a stack-based critter that makes sure that XPCOM is shut down
* during early returns.
*/
class ScopedXPCOMStartup {
public:
ScopedXPCOMStartup() : mServiceManager(nullptr) {}
~ScopedXPCOMStartup();
nsresult Initialize(bool aInitJSContext = true);
nsresult SetWindowCreator(nsINativeAppSupport* native);
private:
nsIServiceManager* mServiceManager;
static nsINativeAppSupport* gNativeAppSupport;
friend already_AddRefed<nsINativeAppSupport> NS_GetNativeAppSupport();
};
ScopedXPCOMStartup::~ScopedXPCOMStartup() {
NS_IF_RELEASE(gNativeAppSupport);
if (mServiceManager) {
#ifdef XP_MACOSX
// On OS X, we need a pool to catch cocoa objects that are autoreleased
// during teardown.
mozilla::MacAutoreleasePool pool;
#endif
nsCOMPtr<nsIAppStartup> appStartup(components::AppStartup::Service());
if (appStartup) appStartup->DestroyHiddenWindow();
gDirServiceProvider->DoShutdown();
PROFILER_MARKER_UNTYPED("Shutdown early", OTHER);
WriteConsoleLog();
NS_ShutdownXPCOM(mServiceManager);
mServiceManager = nullptr;
}
}
nsresult ScopedXPCOMStartup::Initialize(bool aInitJSContext) {
NS_ASSERTION(gDirServiceProvider, "Should not get here!");
nsresult rv;
rv = NS_InitXPCOM(&mServiceManager, gDirServiceProvider->GetAppDir(),
gDirServiceProvider, aInitJSContext);
if (NS_FAILED(rv)) {
NS_ERROR("Couldn't start xpcom!");
mServiceManager = nullptr;
} else {
#ifdef DEBUG
nsCOMPtr<nsIComponentRegistrar> reg = do_QueryInterface(mServiceManager);
NS_ASSERTION(reg, "Service Manager doesn't QI to Registrar.");
#endif
}
return rv;
}
/**
* This is a little factory class that serves as a singleton-service-factory
* for the nativeappsupport object.
*/
class nsSingletonFactory final : public nsIFactory {
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIFACTORY
explicit nsSingletonFactory(nsISupports* aSingleton);
private:
~nsSingletonFactory() = default;
nsCOMPtr<nsISupports> mSingleton;
};
nsSingletonFactory::nsSingletonFactory(nsISupports* aSingleton)
: mSingleton(aSingleton) {
NS_ASSERTION(mSingleton, "Singleton was null!");
}
NS_IMPL_ISUPPORTS(nsSingletonFactory, nsIFactory)
NS_IMETHODIMP
nsSingletonFactory::CreateInstance(const nsIID& aIID, void** aResult) {
return mSingleton->QueryInterface(aIID, aResult);
}
/**
* Set our windowcreator on the WindowWatcher service.
*/
nsresult ScopedXPCOMStartup::SetWindowCreator(nsINativeAppSupport* native) {
nsresult rv;
NS_IF_ADDREF(gNativeAppSupport = native);
nsCOMPtr<nsIWindowCreator> creator(components::AppStartup::Service());
if (!creator) return NS_ERROR_UNEXPECTED;
nsCOMPtr<nsIWindowWatcher> wwatch(
do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv));
NS_ENSURE_SUCCESS(rv, rv);
return wwatch->SetWindowCreator(creator);
}
/* static */ already_AddRefed<nsINativeAppSupport> NS_GetNativeAppSupport() {
if (!ScopedXPCOMStartup::gNativeAppSupport) {
return nullptr;
}
return do_AddRef(ScopedXPCOMStartup::gNativeAppSupport);
}
#ifdef MOZ_HAS_REMOTE
/* static */ already_AddRefed<nsIRemoteService> GetRemoteService() {
AssertIsOnMainThread();
if (!gRemoteService) {
gRemoteService = new nsRemoteService();
}
nsCOMPtr<nsIRemoteService> remoteService = gRemoteService.get();
return remoteService.forget();
}
#endif
nsINativeAppSupport* ScopedXPCOMStartup::gNativeAppSupport;
static void DumpArbitraryHelp() {
nsresult rv;
ScopedLogging log;
{
ScopedXPCOMStartup xpcom;
xpcom.Initialize();
nsCOMPtr<nsICommandLineRunner> cmdline(new nsCommandLine());
nsCString text;
rv = cmdline->GetHelpText(text);
if (NS_SUCCEEDED(rv)) printf("%s", text.get());
}
}
// English text needs to go into a dtd file.
// But when this is called we have no components etc. These strings must either
// be here, or in a native resource file.
static void DumpHelp() {
printf(
"Usage: %s [ options ... ] [URL]\n"
" where options include:\n\n",
gArgv[0]);
#ifdef MOZ_X11
printf(
"X11 options\n"
" --display=DISPLAY X display to use\n"
" --sync Make X calls synchronous\n");
#endif
#ifdef XP_UNIX
printf(
" --g-fatal-warnings Make all warnings fatal\n"
"\n%s options\n",
(const char*)gAppData->name);
#endif
printf(
" -h or --help Print this message.\n"
" -v or --version Print %s version.\n"
" --full-version Print %s version, build and platform build ids.\n"
" -P <profile> Start with <profile>.\n"
" --profile <path> Start with profile at <path>.\n"
" --migration Start with migration wizard.\n"
" --ProfileManager Start with ProfileManager.\n"
" --origin-to-force-quic-on <origin>\n"
" Force to use QUIC for the specified origin.\n"
#ifdef MOZ_HAS_REMOTE
" --new-instance Open new instance, not a new window in running "
"instance.\n"
#endif
" --safe-mode Disables extensions and themes for this session.\n"
#ifdef MOZ_BLOCK_PROFILE_DOWNGRADE
" --allow-downgrade Allows downgrading a profile.\n"
#endif
" --MOZ_LOG=<modules> Treated as MOZ_LOG=<modules> environment "
"variable,\n"
" overrides it.\n"
" --MOZ_LOG_FILE=<file> Treated as MOZ_LOG_FILE=<file> environment "
"variable,\n"
" overrides it. If MOZ_LOG_FILE is not specified as "
"an\n"
" argument or as an environment variable, logging "
"will be\n"
" written to stdout.\n",
(const char*)gAppData->name, (const char*)gAppData->name);
#if defined(XP_WIN)
printf(" --console Start %s with a debugging console.\n",
(const char*)gAppData->name);
#endif
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK) || defined(XP_MACOSX)
printf(" --headless Run without a GUI.\n");
#endif
#if defined(MOZ_ENABLE_DBUS)
printf(
" --dbus-service <launcher> Run as DBus service for "
"org.freedesktop.Application and\n"
" set a launcher (usually /usr/bin/appname "
"script) for it.");
#endif
// this works, but only after the components have registered. so if you drop
// in a new command line handler, --help won't not until the second run. out
// of the bug, because we ship a component.reg file, it works correctly.
DumpArbitraryHelp();
}
static inline void DumpVersion() {
if (gAppData->vendor && *gAppData->vendor) {
printf("%s ", (const char*)gAppData->vendor);
}
printf("%s ", (const char*)gAppData->name);
// Use the displayed version
// For example, for beta, we would display 42.0b2 instead of 42.0
printf("%s", MOZ_STRINGIFY(MOZ_APP_VERSION_DISPLAY));
if (gAppData->copyright && *gAppData->copyright) {
printf(", %s", (const char*)gAppData->copyright);
}
printf("\n");
}
static inline void DumpFullVersion() {
if (gAppData->vendor && *gAppData->vendor) {
printf("%s ", (const char*)gAppData->vendor);
}
printf("%s ", (const char*)gAppData->name);
// Use the displayed version
// For example, for beta, we would display 42.0b2 instead of 42.0
printf("%s ", MOZ_STRINGIFY(MOZ_APP_VERSION_DISPLAY));
printf("%s ", (const char*)gAppData->buildID);
printf("%s ", (const char*)PlatformBuildID());
if (gAppData->copyright && *gAppData->copyright) {
printf(", %s", (const char*)gAppData->copyright);
}
printf("\n");
}
void XRE_InitOmnijar(nsIFile* greOmni, nsIFile* appOmni) {
mozilla::Omnijar::Init(greOmni, appOmni);
}
nsresult XRE_GetBinaryPath(nsIFile** aResult) {
return mozilla::BinaryPath::GetFile(aResult);
}
#ifdef XP_WIN
# include "nsWindowsRestart.cpp"
# include <shellapi.h>
typedef BOOL(WINAPI* SetProcessDEPPolicyFunc)(DWORD dwFlags);
static void RegisterApplicationRestartChanged(const char* aPref, void* aData) {
DWORD cchCmdLine = 0;
HRESULT rc = ::GetApplicationRestartSettings(::GetCurrentProcess(), nullptr,
&cchCmdLine, nullptr);
bool wasRegistered = false;
if (rc == S_OK) {
wasRegistered = true;
}
if (Preferences::GetBool(PREF_WIN_REGISTER_APPLICATION_RESTART, false) &&
!wasRegistered) {
// Make the command line to use when restarting.
// Excludes argv[0] because RegisterApplicationRestart adds the
// executable name, replace that temporarily with -os-restarted
char* exeName = gRestartArgv[0];
gRestartArgv[0] = const_cast<char*>("-os-restarted");
wchar_t** restartArgvConverted =
AllocConvertUTF8toUTF16Strings(gRestartArgc, gRestartArgv);
gRestartArgv[0] = exeName;
mozilla::UniquePtr<wchar_t[]> restartCommandLine;
if (restartArgvConverted) {
restartCommandLine =
mozilla::MakeCommandLine(gRestartArgc, restartArgvConverted);
FreeAllocStrings(gRestartArgc, restartArgvConverted);
}
if (restartCommandLine) {
// Flags RESTART_NO_PATCH and RESTART_NO_REBOOT are not set, so we
// should be restarted if terminated by an update or restart.
::RegisterApplicationRestart(restartCommandLine.get(),
RESTART_NO_CRASH | RESTART_NO_HANG);
}
} else if (wasRegistered) {
::UnregisterApplicationRestart();
}
}
static void OnAlteredPrefetchPrefChanged(const char* aPref, void* aData) {
int32_t prefVal = Preferences::GetInt(PREF_WIN_ALTERED_DLL_PREFETCH, 0);
mozilla::DllPrefetchExperimentRegistryInfo prefetchRegInfo;
mozilla::DebugOnly<mozilla::Result<Ok, nsresult>> reflectResult =
prefetchRegInfo.ReflectPrefToRegistry(prefVal);
MOZ_ASSERT(reflectResult.value.isOk());
}
static void SetupAlteredPrefetchPref() {
mozilla::DllPrefetchExperimentRegistryInfo prefetchRegInfo;
mozilla::DebugOnly<mozilla::Result<Ok, nsresult>> reflectResult =
prefetchRegInfo.ReflectPrefToRegistry(
Preferences::GetInt(PREF_WIN_ALTERED_DLL_PREFETCH, 0));
MOZ_ASSERT(reflectResult.value.isOk());
Preferences::RegisterCallback(&OnAlteredPrefetchPrefChanged,
PREF_WIN_ALTERED_DLL_PREFETCH);
}
static void ReflectSkeletonUIPrefToRegistry(const char* aPref, void* aData) {
Unused << aPref;
Unused << aData;
bool shouldBeEnabled =
Preferences::GetBool(kPrefPreXulSkeletonUI, false) &&
Preferences::GetBool(kPrefBrowserStartupBlankWindow, false) &&
LookAndFeel::DrawInTitlebar();
if (shouldBeEnabled && Preferences::HasUserValue(kPrefThemeId)) {
nsCString themeId;
Preferences::GetCString(kPrefThemeId, themeId);
if (themeId.EqualsLiteral("default-theme@mozilla.org")) {
Unused << SetPreXULSkeletonUIThemeId(ThemeMode::Default);
} else if (themeId.EqualsLiteral("firefox-compact-dark@mozilla.org")) {
Unused << SetPreXULSkeletonUIThemeId(ThemeMode::Dark);
} else if (themeId.EqualsLiteral("firefox-compact-light@mozilla.org")) {
Unused << SetPreXULSkeletonUIThemeId(ThemeMode::Light);
} else {
shouldBeEnabled = false;
}
} else if (shouldBeEnabled) {
Unused << SetPreXULSkeletonUIThemeId(ThemeMode::Default);
}
if (GetPreXULSkeletonUIEnabled() != shouldBeEnabled) {
Unused << SetPreXULSkeletonUIEnabledIfAllowed(shouldBeEnabled);
}
}
static void SetupSkeletonUIPrefs() {
ReflectSkeletonUIPrefToRegistry(nullptr, nullptr);
Preferences::RegisterCallback(&ReflectSkeletonUIPrefToRegistry,
kPrefPreXulSkeletonUI);
Preferences::RegisterCallback(&ReflectSkeletonUIPrefToRegistry,
kPrefBrowserStartupBlankWindow);
Preferences::RegisterCallback(&ReflectSkeletonUIPrefToRegistry, kPrefThemeId);
Preferences::RegisterCallback(
&ReflectSkeletonUIPrefToRegistry,
nsDependentCString(StaticPrefs::GetPrefName_browser_tabs_inTitlebar()));
}
# if defined(MOZ_LAUNCHER_PROCESS)
static void OnLauncherPrefChanged(const char* aPref, void* aData) {
bool prefVal = Preferences::GetBool(PREF_WIN_LAUNCHER_PROCESS_ENABLED, true);
mozilla::LauncherRegistryInfo launcherRegInfo;
mozilla::DebugOnly<mozilla::LauncherVoidResult> reflectResult =
launcherRegInfo.ReflectPrefToRegistry(prefVal);
MOZ_ASSERT(reflectResult.inspect().isOk());
}
static void OnLauncherTelemetryPrefChanged(const char* aPref, void* aData) {
bool prefVal = Preferences::GetBool(kPrefHealthReportUploadEnabled, true);
mozilla::LauncherRegistryInfo launcherRegInfo;
mozilla::DebugOnly<mozilla::LauncherVoidResult> reflectResult =
launcherRegInfo.ReflectTelemetryPrefToRegistry(prefVal);
MOZ_ASSERT(reflectResult.inspect().isOk());
}
static void SetupLauncherProcessPref() {
if (gLauncherProcessState) {
// We've already successfully run
return;
}
mozilla::LauncherRegistryInfo launcherRegInfo;
mozilla::LauncherResult<mozilla::LauncherRegistryInfo::EnabledState>
enabledState = launcherRegInfo.IsEnabled();
if (enabledState.isOk()) {
gLauncherProcessState = Some(enabledState.unwrap());
CrashReporter::RecordAnnotationU32(
CrashReporter::Annotation::LauncherProcessState,
static_cast<uint32_t>(enabledState.unwrap()));
// Reflect the launcher process registry state into user prefs
Preferences::SetBool(
PREF_WIN_LAUNCHER_PROCESS_ENABLED,
enabledState.unwrap() !=
mozilla::LauncherRegistryInfo::EnabledState::ForceDisabled);
}
mozilla::DebugOnly<mozilla::LauncherVoidResult> reflectResult =
launcherRegInfo.ReflectTelemetryPrefToRegistry(
Preferences::GetBool(kPrefHealthReportUploadEnabled, true));
MOZ_ASSERT(reflectResult.inspect().isOk());
Preferences::RegisterCallback(&OnLauncherPrefChanged,
PREF_WIN_LAUNCHER_PROCESS_ENABLED);
Preferences::RegisterCallback(&OnLauncherTelemetryPrefChanged,
kPrefHealthReportUploadEnabled);
}
# endif // defined(MOZ_LAUNCHER_PROCESS)
# if defined(MOZ_DEFAULT_BROWSER_AGENT)
# define DEFAULT_BROWSER_AGENT_KEY_NAME \
"SOFTWARE\\" MOZ_APP_VENDOR "\\" MOZ_APP_NAME "\\Default Browser Agent"
static nsresult PrependRegistryValueName(nsAutoString& aValueName) {
nsresult rv;
nsCOMPtr<nsIFile> binaryPath;
rv = XRE_GetBinaryPath(getter_AddRefs(binaryPath));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFile> binaryDir;
rv = binaryPath->GetParent(getter_AddRefs(binaryDir));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString prefix;
rv = binaryDir->GetPath(prefix);
NS_ENSURE_SUCCESS(rv, rv);
prefix.AppendLiteral("|");
aValueName.Insert(prefix, 0);
return NS_OK;
}
static void OnDefaultAgentTelemetryPrefChanged(const char* aPref, void* aData) {
nsresult rv;
nsAutoString valueName;
if (strcmp(aPref, kPrefHealthReportUploadEnabled) == 0) {
valueName.AssignLiteral("DisableTelemetry");
} else if (strcmp(aPref, kPrefDefaultAgentEnabled) == 0) {
valueName.AssignLiteral("DisableDefaultBrowserAgent");
} else {
return;
}
rv = PrependRegistryValueName(valueName);
NS_ENSURE_SUCCESS_VOID(rv);
nsCOMPtr<nsIWindowsRegKey> regKey =
do_CreateInstance("@mozilla.org/windows-registry-key;1", &rv);
NS_ENSURE_SUCCESS_VOID(rv);
nsAutoString keyName;
keyName.AppendLiteral(DEFAULT_BROWSER_AGENT_KEY_NAME);
rv = regKey->Create(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, keyName,
nsIWindowsRegKey::ACCESS_WRITE);
bool prefVal = Preferences::GetBool(aPref, true);
// We're recording whether the pref is *disabled*, so invert the value.
rv = regKey->WriteIntValue(valueName, prefVal ? 0 : 1);
NS_ENSURE_SUCCESS_VOID(rv);
}
static void OnSetDefaultBrowserUserChoicePrefChanged(const char* aPref,
void* aData) {
nsresult rv;
if (strcmp(aPref, kPrefSetDefaultBrowserUserChoicePref) != 0) {
return;
}
nsAutoString valueName;
valueName.AssignLiteral("SetDefaultBrowserUserChoice");
rv = PrependRegistryValueName(valueName);
NS_ENSURE_SUCCESS_VOID(rv);
nsCOMPtr<nsIWindowsRegKey> regKey =
do_CreateInstance("@mozilla.org/windows-registry-key;1", &rv);
NS_ENSURE_SUCCESS_VOID(rv);
nsAutoString keyName;
keyName.AppendLiteral(DEFAULT_BROWSER_AGENT_KEY_NAME);
rv = regKey->Create(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, keyName,
nsIWindowsRegKey::ACCESS_WRITE);
bool prefVal = Preferences::GetBool(aPref, true);
rv = regKey->WriteIntValue(valueName, prefVal);
NS_ENSURE_SUCCESS_VOID(rv);
}
static void OnDefaultAgentRemoteSettingsPrefChanged(const char* aPref,
void* aData) {
nsresult rv;
nsAutoString valueName;
if (strcmp(aPref, kPrefServicesSettingsServer) == 0) {
valueName.AssignLiteral("ServicesSettingsServer");
} else {
return;
}
rv = PrependRegistryValueName(valueName);
NS_ENSURE_SUCCESS_VOID(rv);
nsCOMPtr<nsIWindowsRegKey> regKey =
do_CreateInstance("@mozilla.org/windows-registry-key;1", &rv);
NS_ENSURE_SUCCESS_VOID(rv);
nsAutoString keyName;
keyName.AppendLiteral(DEFAULT_BROWSER_AGENT_KEY_NAME);
rv = regKey->Create(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, keyName,
nsIWindowsRegKey::ACCESS_WRITE);
NS_ENSURE_SUCCESS_VOID(rv);
nsAutoString prefVal;
rv = Preferences::GetString(aPref, prefVal);
if (NS_FAILED(rv)) {
return;
}
if (prefVal.IsEmpty()) {
rv = regKey->RemoveValue(valueName);
} else {
rv = regKey->WriteStringValue(valueName, prefVal);
}
NS_ENSURE_SUCCESS_VOID(rv);
}
static void SetDefaultAgentLastRunTime() {
nsresult rv;
nsAutoString valueName;
valueName.AppendLiteral("AppLastRunTime");
rv = PrependRegistryValueName(valueName);
NS_ENSURE_SUCCESS_VOID(rv);
nsCOMPtr<nsIWindowsRegKey> regKey =
do_CreateInstance("@mozilla.org/windows-registry-key;1", &rv);
NS_ENSURE_SUCCESS_VOID(rv);
nsAutoString keyName;
keyName.AppendLiteral(DEFAULT_BROWSER_AGENT_KEY_NAME);
rv = regKey->Create(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, keyName,
nsIWindowsRegKey::ACCESS_WRITE);
NS_ENSURE_SUCCESS_VOID(rv);
FILETIME fileTime;
GetSystemTimeAsFileTime(&fileTime);
ULARGE_INTEGER integerTime;
integerTime.u.LowPart = fileTime.dwLowDateTime;
integerTime.u.HighPart = fileTime.dwHighDateTime;
rv = regKey->WriteInt64Value(valueName, integerTime.QuadPart);
NS_ENSURE_SUCCESS_VOID(rv);
}
# endif // defined(MOZ_DEFAULT_BROWSER_AGENT)
#endif // XP_WIN
void UnlockProfile() {
if (gProfileLock) {
gProfileLock->Unlock();
}
}
nsresult LaunchChild(bool aBlankCommandLine, bool aTryExec) {
// Restart this process by exec'ing it into the current process
// if supported by the platform. Otherwise, use NSPR.
if (aBlankCommandLine) {
gRestartArgc = 1;
gRestartArgv[gRestartArgc] = nullptr;
}
SaveToEnv("MOZ_LAUNCHED_CHILD=1");
#if defined(MOZ_LAUNCHER_PROCESS)
SaveToEnv("MOZ_LAUNCHER_PROCESS=1");
#endif // defined(MOZ_LAUNCHER_PROCESS)
#if !defined(MOZ_WIDGET_ANDROID) // Android has separate restart code.
# if defined(XP_MACOSX)
InitializeMacApp();
CommandLineServiceMac::SetupMacCommandLine(gRestartArgc, gRestartArgv, true);
LaunchMacApp(gRestartArgc, gRestartArgv);
# else
nsCOMPtr<nsIFile> lf;
nsresult rv = XRE_GetBinaryPath(getter_AddRefs(lf));
if (NS_FAILED(rv)) return rv;
# if defined(XP_WIN)
nsAutoString exePath;
rv = lf->GetPath(exePath);
if (NS_FAILED(rv)) return rv;
HANDLE hProcess;
if (!WinLaunchChild(exePath.get(), gRestartArgc, gRestartArgv, nullptr,
&hProcess))
return NS_ERROR_FAILURE;
// Keep the current process around until the restarted process has created
// its message queue, to avoid the launched process's windows being forced
// into the background.
mozilla::WaitForInputIdle(hProcess);
::CloseHandle(hProcess);
# else
nsAutoCString exePath;
rv = lf->GetNativePath(exePath);
if (NS_FAILED(rv)) return rv;
# if defined(XP_UNIX)
if (aTryExec) {
execv(exePath.get(), gRestartArgv);
// If execv returns we know it's because it failed.
return NS_ERROR_FAILURE;
}
# endif
if (PR_CreateProcessDetached(exePath.get(), gRestartArgv, nullptr, nullptr) ==
PR_FAILURE) {
return NS_ERROR_FAILURE;
}
// Note that we don't know if the child process starts okay, if it
// immediately returns non-zero then we may mask that by returning a zero
// exit status.
# endif // WP_WIN
# endif // WP_MACOSX
#endif // MOZ_WIDGET_ANDROID
return NS_ERROR_LAUNCHED_CHILD_PROCESS;
}
static const char kProfileProperties[] =
"chrome://mozapps/locale/profile/profileSelection.properties";
namespace {
/**
* This class, instead of a raw nsresult, should be the return type of any
* function called by SelectProfile that initializes XPCOM.
*/
class ReturnAbortOnError {
public:
MOZ_IMPLICIT ReturnAbortOnError(nsresult aRv) { mRv = ConvertRv(aRv); }
operator nsresult() { return mRv; }
private:
inline nsresult ConvertRv(nsresult aRv) {
if (NS_SUCCEEDED(aRv) || aRv == NS_ERROR_LAUNCHED_CHILD_PROCESS) {
return aRv;
}
#ifdef MOZ_BACKGROUNDTASKS
// A background task that fails to lock its profile will return
// NS_ERROR_UNEXPECTED and this will allow the task to exit with a
// non-zero exit code.
if (aRv == NS_ERROR_UNEXPECTED && BackgroundTasks::IsBackgroundTaskMode()) {
return aRv;
}
#endif
return NS_ERROR_ABORT;
}
nsresult mRv;
};
} // namespace
static nsresult ProfileMissingDialog(nsINativeAppSupport* aNative) {
#ifdef MOZ_WIDGET_ANDROID
// We cannot really do anything this early during initialization, so we just
// return as this is likely the effect of misconfiguration on the test side.
// Non-test code paths cannot set the profile folder, which is always the
// default one.
Output(true, "Could not find profile folder.\n");
return NS_ERROR_ABORT;
#else
# ifdef MOZ_BACKGROUNDTASKS
if (BackgroundTasks::IsBackgroundTaskMode()) {
// We should never get to this point in background task mode.
printf_stderr(
"Could not determine any profile running in backgroundtask mode!\n");
return NS_ERROR_ABORT;
}
# endif // MOZ_BACKGROUNDTASKS
nsresult rv;
ScopedXPCOMStartup xpcom;
rv = xpcom.Initialize();
NS_ENSURE_SUCCESS(rv, rv);
rv = xpcom.SetWindowCreator(aNative);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
# ifdef XP_MACOSX
InitializeMacApp();
# endif
{ // extra scoping is needed so we release these components before xpcom
// shutdown
nsCOMPtr<nsIStringBundleService> sbs =
mozilla::components::StringBundle::Service();
NS_ENSURE_TRUE(sbs, NS_ERROR_FAILURE);
nsCOMPtr<nsIStringBundle> sb;
sbs->CreateBundle(kProfileProperties, getter_AddRefs(sb));
NS_ENSURE_TRUE_LOG(sbs, NS_ERROR_FAILURE);
NS_ConvertUTF8toUTF16 appName(gAppData->name);
AutoTArray<nsString, 2> params = {appName, appName};
// profileMissing
nsAutoString missingMessage;
rv = sb->FormatStringFromName("profileMissing", params, missingMessage);
NS_ENSURE_SUCCESS(rv, NS_ERROR_ABORT);
nsAutoString missingTitle;
params.SetLength(1);
rv = sb->FormatStringFromName("profileMissingTitle", params, missingTitle);
NS_ENSURE_SUCCESS(rv, NS_ERROR_ABORT);
nsCOMPtr<nsIPromptService> ps(do_GetService(NS_PROMPTSERVICE_CONTRACTID));
NS_ENSURE_TRUE(ps, NS_ERROR_FAILURE);
ps->Alert(nullptr, missingTitle.get(), missingMessage.get());
return NS_ERROR_ABORT;
}
#endif // MOZ_WIDGET_ANDROID
}
static ReturnAbortOnError ProfileLockedDialog(nsIFile* aProfileDir,
nsIFile* aProfileLocalDir,
nsIProfileUnlocker* aUnlocker,
nsINativeAppSupport* aNative,
nsIProfileLock** aResult) {
nsresult rv;
// We aren't going to start this instance so we can unblock other instances
// from starting up.
#if defined(MOZ_HAS_REMOTE)
gStartupLock = nullptr;
#endif
bool exists;
aProfileDir->Exists(&exists);
if (!exists) {
return ProfileMissingDialog(aNative);
}
ScopedXPCOMStartup xpcom;
rv = xpcom.Initialize();
NS_ENSURE_SUCCESS(rv, rv);
#if defined(MOZ_TELEMETRY_REPORTING)
// We cannot check if telemetry has been disabled by the user, yet.
// So, rely on the build time settings, instead.
mozilla::Telemetry::WriteFailedProfileLock(aProfileDir);
#endif
rv = xpcom.SetWindowCreator(aNative);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
#ifdef XP_MACOSX
InitializeMacApp();
#endif
{ // extra scoping is needed so we release these components before xpcom
// shutdown
nsCOMPtr<nsIStringBundleService> sbs =
mozilla::components::StringBundle::Service();
NS_ENSURE_TRUE(sbs, NS_ERROR_FAILURE);
nsCOMPtr<nsIStringBundle> sb;
sbs->CreateBundle(kProfileProperties, getter_AddRefs(sb));
NS_ENSURE_TRUE_LOG(sbs, NS_ERROR_FAILURE);
NS_ConvertUTF8toUTF16 appName(gAppData->name);
AutoTArray<nsString, 3> params = {appName, appName, appName};
nsAutoString killMessage;
#ifndef XP_MACOSX
rv = sb->FormatStringFromName(
aUnlocker ? "restartMessageUnlocker" : "restartMessageNoUnlocker2",
params, killMessage);
#else
rv = sb->FormatStringFromName(
aUnlocker ? "restartMessageUnlockerMac" : "restartMessageNoUnlockerMac",
params, killMessage);
#endif
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
params.SetLength(1);
nsAutoString killTitle;
rv = sb->FormatStringFromName("restartTitle", params, killTitle);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
#ifdef MOZ_BACKGROUNDTASKS
if (BackgroundTasks::IsBackgroundTaskMode()) {
// This error is handled specially to exit with a non-zero exit code.
printf_stderr("%s\n", NS_LossyConvertUTF16toASCII(killMessage).get());
return NS_ERROR_UNEXPECTED;
}
#endif
if (gfxPlatform::IsHeadless()) {
// TODO: make a way to turn off all dialogs when headless.
Output(true, "%s\n", NS_LossyConvertUTF16toASCII(killMessage).get());
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIPromptService> ps(do_GetService(NS_PROMPTSERVICE_CONTRACTID));
NS_ENSURE_TRUE(ps, NS_ERROR_FAILURE);
if (aUnlocker) {
int32_t button;
#ifdef MOZ_WIDGET_ANDROID
// On Android we always kill the process if the lock is still being held
button = 0;
#else
const uint32_t flags = (nsIPromptService::BUTTON_TITLE_IS_STRING *
nsIPromptService::BUTTON_POS_0) +
(nsIPromptService::BUTTON_TITLE_CANCEL *
nsIPromptService::BUTTON_POS_1);
bool checkState = false;
rv = ps->ConfirmEx(nullptr, killTitle.get(), killMessage.get(), flags,
killTitle.get(), nullptr, nullptr, nullptr,
&checkState, &button);
NS_ENSURE_SUCCESS_LOG(rv, rv);
#endif
if (button == 0) {
rv = aUnlocker->Unlock(nsIProfileUnlocker::FORCE_QUIT);
if (NS_FAILED(rv)) {
return rv;
}
SaveFileToEnv("XRE_PROFILE_PATH", aProfileDir);
SaveFileToEnv("XRE_PROFILE_LOCAL_PATH", aProfileLocalDir);
return LaunchChild(false, true);
}
} else {
rv = ps->Alert(nullptr, killTitle.get(), killMessage.get());
NS_ENSURE_SUCCESS_LOG(rv, rv);
}
return NS_ERROR_ABORT;
}
}
static ReturnAbortOnError ShowProfileDialog(
nsIToolkitProfileService* aProfileSvc, nsINativeAppSupport* aNative,
const char* aDialogURL, const char* aTelemetryEnvVar) {
nsresult rv;
nsCOMPtr<nsIFile> profD, profLD;
bool offline = false;
int32_t dialogReturn;
// We aren't going to start this instance so we can unblock other instances
// from starting up.
#if defined(MOZ_HAS_REMOTE)
gStartupLock = nullptr;
#endif
{
ScopedXPCOMStartup xpcom;
rv = xpcom.Initialize();
NS_ENSURE_SUCCESS(rv, rv);
rv = xpcom.SetWindowCreator(aNative);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
#ifdef XP_MACOSX
InitializeMacApp();
CommandLineServiceMac::SetupMacCommandLine(gRestartArgc, gRestartArgv,
true);
#endif
{ // extra scoping is needed so we release these components before xpcom
// shutdown
nsCOMPtr<nsIWindowWatcher> windowWatcher(
do_GetService(NS_WINDOWWATCHER_CONTRACTID));
nsCOMPtr<nsIDialogParamBlock> ioParamBlock(
do_CreateInstance(NS_DIALOGPARAMBLOCK_CONTRACTID));
nsCOMPtr<nsIMutableArray> dlgArray(
do_CreateInstance(NS_ARRAY_CONTRACTID));
NS_ENSURE_TRUE(windowWatcher && ioParamBlock && dlgArray,
NS_ERROR_FAILURE);
ioParamBlock->SetObjects(dlgArray);
nsCOMPtr<nsIAppStartup> appStartup(components::AppStartup::Service());
NS_ENSURE_TRUE(appStartup, NS_ERROR_FAILURE);
nsAutoCString features("centerscreen,chrome,modal,titlebar");
// If we're launching a private browsing window make sure to set that
// feature for the Profile Manager window as well, so it groups correctly
// on the Windows taskbar.
if (CheckArgExists("private-window") == ARG_FOUND) {
features.AppendLiteral(",private");
}
nsCOMPtr<mozIDOMWindowProxy> newWindow;
rv = windowWatcher->OpenWindow(nullptr, nsDependentCString(aDialogURL),
"_blank"_ns, features, ioParamBlock,
getter_AddRefs(newWindow));
NS_ENSURE_SUCCESS_LOG(rv, rv);
rv = ioParamBlock->GetInt(0, &dialogReturn);
if (NS_FAILED(rv) || dialogReturn == nsIToolkitProfileService::exit) {
return NS_ERROR_ABORT;
}
int32_t startOffline;
rv = ioParamBlock->GetInt(1, &startOffline);
offline = NS_SUCCEEDED(rv) && startOffline == 1;
rv = dlgArray->QueryElementAt(0, NS_GET_IID(nsIFile),
getter_AddRefs(profD));
NS_ENSURE_SUCCESS_LOG(rv, rv);
rv = dlgArray->QueryElementAt(1, NS_GET_IID(nsIFile),
getter_AddRefs(profLD));
NS_ENSURE_SUCCESS_LOG(rv, rv);
if (dialogReturn == nsIToolkitProfileService::launchWithProfile) {
int32_t newArguments;
rv = ioParamBlock->GetInt(2, &newArguments);
if (NS_SUCCEEDED(rv) && newArguments > 0) {
char** newArgv = (char**)realloc(
gRestartArgv, sizeof(char*) * (gRestartArgc + newArguments + 1));
NS_ENSURE_TRUE(newArgv, NS_ERROR_OUT_OF_MEMORY);
gRestartArgv = newArgv;
for (auto i = 0; i < newArguments; i++) {
char16_t* arg;
ioParamBlock->GetString(i, &arg);
gRestartArgv[gRestartArgc++] =
strdup(NS_ConvertUTF16toUTF8(nsDependentString(arg)).get());
}
gRestartArgv[gRestartArgc] = nullptr;
}
}
}
}
if (offline) {
SaveToEnv("XRE_START_OFFLINE=1");
}
// User requested that we restart back into the profile manager.
if (dialogReturn == nsIToolkitProfileService::restart) {
SaveToEnv("XRE_RESTART_TO_PROFILE_MANAGER=1");
} else {
MOZ_ASSERT(dialogReturn == nsIToolkitProfileService::launchWithProfile);
SaveFileToEnv("XRE_PROFILE_PATH", profD);
SaveFileToEnv("XRE_PROFILE_LOCAL_PATH", profLD);
}
SaveToEnv(aTelemetryEnvVar);
if (gRestartedByOS) {
// Re-add this argument when actually starting the application.
char** newArgv =
(char**)realloc(gRestartArgv, sizeof(char*) * (gRestartArgc + 2));
NS_ENSURE_TRUE(newArgv, NS_ERROR_OUT_OF_MEMORY);
gRestartArgv = newArgv;
gRestartArgv[gRestartArgc++] = const_cast<char*>("-os-restarted");
gRestartArgv[gRestartArgc] = nullptr;
}
return LaunchChild(false, true);
}
static ReturnAbortOnError ShowProfileManager(
nsIToolkitProfileService* aProfileSvc, nsINativeAppSupport* aNative) {
static const char kProfileManagerURL[] =
"chrome://mozapps/content/profile/profileSelection.xhtml";
static const char kTelemetryEnv[] = "XRE_RESTARTED_BY_PROFILE_MANAGER=1";
return ShowProfileDialog(aProfileSvc, aNative, kProfileManagerURL,
kTelemetryEnv);
}
static ReturnAbortOnError ShowProfileSelector(
nsIToolkitProfileService* aProfileSvc, nsINativeAppSupport* aNative) {
static const char kProfileSelectorURL[] = "about:profilemanager";
static const char kTelemetryEnv[] = "XRE_RESTARTED_BY_PROFILE_SELECTOR=1";
return ShowProfileDialog(aProfileSvc, aNative, kProfileSelectorURL,
kTelemetryEnv);
}
static bool gDoMigration = false;
static bool gDoProfileReset = false;
MOZ_RUNINIT static nsCOMPtr<nsIToolkitProfile> gResetOldProfile;
static nsresult LockProfile(nsINativeAppSupport* aNative, nsIFile* aRootDir,
nsIFile* aLocalDir, nsIToolkitProfile* aProfile,
nsIProfileLock** aResult) {
// If you close Firefox and very quickly reopen it, the old Firefox may
// still be closing down. Rather than immediately showing the
// "Firefox is running but is not responding" message, we spend a few
// seconds retrying first.
static const int kLockRetrySeconds = 5;
static const int kLockRetrySleepMS = 100;
nsresult rv;
nsCOMPtr<nsIProfileUnlocker> unlocker;
const TimeStamp start = TimeStamp::Now();
do {
if (aProfile) {
rv = aProfile->Lock(getter_AddRefs(unlocker), aResult);
} else {
rv = NS_LockProfilePath(aRootDir, aLocalDir, getter_AddRefs(unlocker),
aResult);
}
if (NS_SUCCEEDED(rv)) {
StartupTimeline::Record(StartupTimeline::AFTER_PROFILE_LOCKED);
return NS_OK;
}
PR_Sleep(kLockRetrySleepMS);
} while (TimeStamp::Now() - start <
TimeDuration::FromSeconds(kLockRetrySeconds));
return ProfileLockedDialog(aRootDir, aLocalDir, unlocker, aNative, aResult);
}
// Pick a profile. We need to end up with a profile root dir, local dir and
// potentially an nsIToolkitProfile instance.
//
// 1) check for --profile <path>
// 2) check for -P <name>
// 3) check for --ProfileManager
// 4) use the default profile, if there is one
// 5) if there are *no* profiles, set up profile-migration
// 6) display the profile-manager UI
static nsresult SelectProfile(nsToolkitProfileService* aProfileSvc,
nsINativeAppSupport* aNative, nsIFile** aRootDir,
nsIFile** aLocalDir, nsIToolkitProfile** aProfile,
bool* aWasDefaultSelection) {
StartupTimeline::Record(StartupTimeline::SELECT_PROFILE);
nsresult rv;
if (EnvHasValue("MOZ_RESET_PROFILE_RESTART")) {
gDoProfileReset = true;
gDoMigration = true;
}
// reset-profile and migration args need to be checked before any profiles are
// chosen below.
ArgResult ar = CheckArg("reset-profile");
if (ar == ARG_FOUND) {
gDoProfileReset = true;
}
ar = CheckArg("migration");
if (ar == ARG_FOUND) {
gDoMigration = true;
}
#if defined(XP_WIN)
// This arg is only used to indicate to telemetry that a profile refresh
// (reset+migration) was requested from the uninstaller, pass this along
// via an environment variable for simplicity.
ar = CheckArg("uninstaller-profile-refresh");
if (ar == ARG_FOUND) {
SaveToEnv("MOZ_UNINSTALLER_PROFILE_REFRESH=1");
}
#endif
if (EnvHasValue("XRE_RESTART_TO_PROFILE_MANAGER")) {
return ShowProfileManager(aProfileSvc, aNative);
}
// Ask the profile manager to select the profile directories to use.
bool didCreate = false;
rv = aProfileSvc->SelectStartupProfile(&gArgc, gArgv, gDoProfileReset,
aRootDir, aLocalDir, aProfile,
&didCreate, aWasDefaultSelection);
if (rv == NS_ERROR_SHOW_PROFILE_MANAGER) {
return ShowProfileManager(aProfileSvc, aNative);
}
NS_ENSURE_SUCCESS(rv, rv);
if (didCreate) {
// For a fresh install, we would like to let users decide
// to do profile migration on their own later after using.
gDoProfileReset = false;
gDoMigration = false;
}
if (gDoProfileReset && !*aProfile) {
NS_WARNING("Profile reset is only supported for named profiles.");
return NS_ERROR_ABORT;
}
// No profile could be found. This generally shouldn't happen, a new profile
// should be created in all cases except for profile reset which is covered
// above, but just in case...
if (!*aRootDir) {
NS_WARNING("Failed to select or create profile.");
return NS_ERROR_ABORT;
}
return NS_OK;
}
#ifdef MOZ_BLOCK_PROFILE_DOWNGRADE
struct FileWriteFunc final : public JSONWriteFunc {
FILE* mFile;
explicit FileWriteFunc(FILE* aFile) : mFile(aFile) {}
void Write(const Span<const char>& aStr) final {
fprintf(mFile, "%.*s", int(aStr.size()), aStr.data());
}
};
static void SubmitDowngradeTelemetry(const nsCString& aLastVersion,
bool aHasSync, int32_t aButton) {
nsCOMPtr<nsIPrefService> prefSvc =
do_GetService("@mozilla.org/preferences-service;1");
NS_ENSURE_TRUE_VOID(prefSvc);
nsCOMPtr<nsIPrefBranch> prefBranch = do_QueryInterface(prefSvc);
NS_ENSURE_TRUE_VOID(prefBranch);
bool enabled;
nsresult rv =
prefBranch->GetBoolPref(kPrefHealthReportUploadEnabled, &enabled);
NS_ENSURE_SUCCESS_VOID(rv);
if (!enabled) {
return;
}
nsCString server;
rv = prefBranch->GetCharPref("toolkit.telemetry.server", server);
NS_ENSURE_SUCCESS_VOID(rv);
nsCString clientId;
rv = prefBranch->GetCharPref("toolkit.telemetry.cachedClientID", clientId);
NS_ENSURE_SUCCESS_VOID(rv);
nsCString profileGroupId;
rv = prefBranch->GetCharPref("toolkit.telemetry.cachedProfileGroupID",
profileGroupId);
NS_ENSURE_SUCCESS_VOID(rv);
rv = prefSvc->GetDefaultBranch(nullptr, getter_AddRefs(prefBranch));
NS_ENSURE_SUCCESS_VOID(rv);
nsCString channel("default");
rv = prefBranch->GetCharPref("app.update.channel", channel);
NS_ENSURE_SUCCESS_VOID(rv);
nsID uuid;
rv = nsID::GenerateUUIDInPlace(uuid);
NS_ENSURE_SUCCESS_VOID(rv);
nsCString arch("null");
nsCOMPtr<nsIPropertyBag2> sysInfo =
do_GetService("@mozilla.org/system-info;1");
NS_ENSURE_TRUE_VOID(sysInfo);
sysInfo->GetPropertyAsACString(u"arch"_ns, arch);
time_t now;
time(&now);
char date[sizeof "YYYY-MM-DDThh:mm:ss.000Z"];
strftime(date, sizeof date, "%FT%T.000Z", gmtime(&now));
NSID_TrimBracketsASCII pingId(uuid);
constexpr auto pingType = "downgrade"_ns;
int32_t pos = aLastVersion.Find("_");
if (pos == kNotFound) {
return;
}
const nsDependentCSubstring lastVersion = Substring(aLastVersion, 0, pos);
const nsDependentCSubstring lastBuildId =
Substring(aLastVersion, pos + 1, 14);
nsPrintfCString url("%s/submit/telemetry/%s/%s/%s/%s/%s/%s?v=%d",
server.get(), PromiseFlatCString(pingId).get(),
pingType.get(), (const char*)gAppData->name,
(const char*)gAppData->version, channel.get(),
(const char*)gAppData->buildID,
TELEMETRY_PING_FORMAT_VERSION);
nsCOMPtr<nsIFile> pingFile;
rv = NS_GetSpecialDirectory(XRE_USER_APP_DATA_DIR, getter_AddRefs(pingFile));
NS_ENSURE_SUCCESS_VOID(rv);
rv = pingFile->Append(u"Pending Pings"_ns);
NS_ENSURE_SUCCESS_VOID(rv);
rv = pingFile->Create(nsIFile::DIRECTORY_TYPE, 0755);
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_ALREADY_EXISTS) {
return;
}
rv = pingFile->Append(NS_ConvertUTF8toUTF16(pingId));
NS_ENSURE_SUCCESS_VOID(rv);
nsCOMPtr<nsIFile> pingSender;
rv = NS_GetSpecialDirectory(NS_GRE_BIN_DIR, getter_AddRefs(pingSender));
NS_ENSURE_SUCCESS_VOID(rv);
# ifdef XP_WIN
pingSender->Append(u"pingsender.exe"_ns);
# else
pingSender->Append(u"pingsender"_ns);
# endif
bool exists;
rv = pingSender->Exists(&exists);
NS_ENSURE_SUCCESS_VOID(rv);
if (!exists) {
return;
}
FILE* file;
rv = pingFile->OpenANSIFileDesc("w", &file);
NS_ENSURE_SUCCESS_VOID(rv);
JSONWriter w(MakeUnique<FileWriteFunc>(file));
w.Start();
{
w.StringProperty("type",
Span<const char>(pingType.Data(), pingType.Length()));
w.StringProperty("id", PromiseFlatCString(pingId));
w.StringProperty("creationDate", MakeStringSpan(date));
w.IntProperty("version", TELEMETRY_PING_FORMAT_VERSION);
w.StringProperty("clientId", clientId);
w.StringProperty("profileGroupId", profileGroupId);
w.StartObjectProperty("application");
{
w.StringProperty("architecture", arch);
w.StringProperty(
"buildId",
MakeStringSpan(static_cast<const char*>(gAppData->buildID)));
w.StringProperty(
"name", MakeStringSpan(static_cast<const char*>(gAppData->name)));
w.StringProperty(
"version",
MakeStringSpan(static_cast<const char*>(gAppData->version)));
w.StringProperty("displayVersion",
MOZ_STRINGIFY(MOZ_APP_VERSION_DISPLAY));
w.StringProperty(
"vendor", MakeStringSpan(static_cast<const char*>(gAppData->vendor)));
w.StringProperty("platformVersion", gToolkitVersion);
# ifdef TARGET_XPCOM_ABI
w.StringProperty("xpcomAbi", TARGET_XPCOM_ABI);
# else
w.StringProperty("xpcomAbi", "unknown");
# endif
w.StringProperty("channel", channel);
}
w.EndObject();
w.StartObjectProperty("payload");
{
w.StringProperty("lastVersion", PromiseFlatCString(lastVersion));
w.StringProperty("lastBuildId", PromiseFlatCString(lastBuildId));
w.BoolProperty("hasSync", aHasSync);
w.IntProperty("button", aButton);
}
w.EndObject();
}
w.End();
fclose(file);
PathString filePath = pingFile->NativePath();
const filesystem::Path::value_type* args[2];
# ifdef XP_WIN
nsString urlw = NS_ConvertUTF8toUTF16(url);
args[0] = urlw.get();
# else
args[0] = url.get();
# endif
args[1] = filePath.get();
nsCOMPtr<nsIProcess> process =
do_CreateInstance("@mozilla.org/process/util;1");
NS_ENSURE_TRUE_VOID(process);
process->Init(pingSender);
process->SetStartHidden(true);
process->SetNoShell(true);
# ifdef XP_WIN
process->Runw(false, args, 2);
# else
process->Run(false, args, 2);
# endif
}
static const char kProfileDowngradeURL[] =
"chrome://mozapps/content/profile/profileDowngrade.xhtml";
static ReturnAbortOnError CheckDowngrade(nsIFile* aProfileDir,
nsINativeAppSupport* aNative,
nsIToolkitProfileService* aProfileSvc,
const nsCString& aLastVersion) {
int32_t result = 0;
nsresult rv;
{
if (gfxPlatform::IsHeadless()) {
// TODO: make a way to turn off all dialogs when headless.
Output(true,
"This profile was last used with a newer version of this "
"application. Please create a new profile.\n");
return NS_ERROR_ABORT;
}
ScopedXPCOMStartup xpcom;
rv = xpcom.Initialize();
NS_ENSURE_SUCCESS(rv, rv);
rv = xpcom.SetWindowCreator(aNative);
NS_ENSURE_SUCCESS(rv, rv);
# ifdef XP_MACOSX
InitializeMacApp();
# endif
{ // extra scoping is needed so we release these components before xpcom
// shutdown
bool hasSync = false;
nsCOMPtr<nsIPrefService> prefSvc =
do_GetService("@mozilla.org/preferences-service;1");
NS_ENSURE_TRUE(prefSvc, rv);
nsCOMPtr<nsIFile> prefsFile;
rv = aProfileDir->Clone(getter_AddRefs(prefsFile));
NS_ENSURE_SUCCESS(rv, rv);
rv = prefsFile->Append(u"prefs.js"_ns);
NS_ENSURE_SUCCESS(rv, rv);
rv = prefSvc->ReadUserPrefsFromFile(prefsFile);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIPrefBranch> prefBranch = do_QueryInterface(prefSvc);
rv = prefBranch->PrefHasUserValue("services.sync.username", &hasSync);
NS_ENSURE_SUCCESS(rv, rv);
}
nsCOMPtr<nsIWindowWatcher> windowWatcher =
do_GetService(NS_WINDOWWATCHER_CONTRACTID);
NS_ENSURE_TRUE(windowWatcher, NS_ERROR_ABORT);
nsCOMPtr<nsIAppStartup> appStartup(components::AppStartup::Service());
NS_ENSURE_TRUE(appStartup, NS_ERROR_FAILURE);
nsCOMPtr<nsIDialogParamBlock> paramBlock =
do_CreateInstance(NS_DIALOGPARAMBLOCK_CONTRACTID);
NS_ENSURE_TRUE(paramBlock, NS_ERROR_ABORT);
uint8_t flags = 0;
if (hasSync) {
flags |= nsIToolkitProfileService::hasSync;
}
paramBlock->SetInt(0, flags);
nsAutoCString features("centerscreen,chrome,modal,titlebar");
// If we're launching a private browsing window make sure to set that
// feature for the Profile Manager window as well, so it groups correctly
// on the Windows taskbar.
if (CheckArgExists("private-window") == ARG_FOUND) {
features.AppendLiteral(",private");
}
nsCOMPtr<mozIDOMWindowProxy> newWindow;
rv = windowWatcher->OpenWindow(
nullptr, nsDependentCString(kProfileDowngradeURL), "_blank"_ns,
features, paramBlock, getter_AddRefs(newWindow));
NS_ENSURE_SUCCESS(rv, rv);
paramBlock->GetInt(1, &result);
SubmitDowngradeTelemetry(aLastVersion, hasSync, result);
}
}
if (result == nsIToolkitProfileService::createNewProfile) {
// Create a new profile and start it.
nsCString profileName;
profileName.AssignLiteral("default");
# ifdef MOZ_DEDICATED_PROFILES
profileName.Append("-" MOZ_STRINGIFY(MOZ_UPDATE_CHANNEL));
# endif
nsCOMPtr<nsIToolkitProfile> newProfile;
rv = aProfileSvc->CreateUniqueProfile(nullptr, profileName,
getter_AddRefs(newProfile));
NS_ENSURE_SUCCESS(rv, rv);
rv = aProfileSvc->SetDefaultProfile(newProfile);
NS_ENSURE_SUCCESS(rv, rv);
rv = aProfileSvc->Flush();
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFile> profD, profLD;
rv = newProfile->GetRootDir(getter_AddRefs(profD));
NS_ENSURE_SUCCESS(rv, rv);
rv = newProfile->GetLocalDir(getter_AddRefs(profLD));
NS_ENSURE_SUCCESS(rv, rv);
SaveFileToEnv("XRE_PROFILE_PATH", profD);
SaveFileToEnv("XRE_PROFILE_LOCAL_PATH", profLD);
return LaunchChild(false, true);
}
// Cancel
return NS_ERROR_ABORT;
}
#endif
/**
* Extracts the various parts of a compatibility version string.
*
* Compatibility versions are of the form
* "<appversion>_<appbuildid>/<platformbuildid>". The toolkit version comparator
* can only handle 32-bit numbers and in the normal case build IDs are larger
* than this. So if the build ID is numeric we split it into two version parts.
*/
static void ExtractCompatVersionInfo(const nsACString& aCompatVersion,
nsACString& aAppVersion,
nsACString& aAppBuildID) {
int32_t underscorePos = aCompatVersion.FindChar('_');
int32_t slashPos = aCompatVersion.FindChar('/');
if (underscorePos == kNotFound || slashPos == kNotFound ||
slashPos < underscorePos) {
NS_WARNING(
"compatibility.ini Version string does not match the expected format.");
// Fall back to just using the entire string as the version.
aAppVersion = aCompatVersion;
aAppBuildID.Truncate(0);
return;
}
aAppVersion = Substring(aCompatVersion, 0, underscorePos);
aAppBuildID = Substring(aCompatVersion, underscorePos + 1,
slashPos - (underscorePos + 1));
}
/**
* Compares the provided compatibility versions. Returns 0 if they match,
* < 0 if the new version is considered an upgrade from the old version and
* > 0 if the new version is considered a downgrade from the old version.
*/
int32_t CompareCompatVersions(const nsACString& aOldCompatVersion,
const nsACString& aNewCompatVersion) {
// cannot tell if this is a downgrade or not so just assume it isn't and let
// the user proceed.
if (aOldCompatVersion.EqualsLiteral("Safe Mode")) {
return -1;
}
// Extract the major version part from the version string and only use that
// for version comparison.
int32_t index = aOldCompatVersion.FindChar('.');
const nsACString& oldMajorVersion = Substring(
aOldCompatVersion, 0, index < 0 ? aOldCompatVersion.Length() : index);
index = aNewCompatVersion.FindChar('.');
const nsACString& newMajorVersion = Substring(
aNewCompatVersion, 0, index < 0 ? aNewCompatVersion.Length() : index);
return CompareVersions(PromiseFlatCString(oldMajorVersion).get(),
PromiseFlatCString(newMajorVersion).get());
}
/**
* Checks the compatibility.ini file to see if we have updated our application
* or otherwise invalidated our caches. If the application has been updated,
* we return false; otherwise, we return true.
*
* We also write the status of the caches (valid/invalid) into the return param
* aCachesOK. The aCachesOK is always invalid if the application has been
* updated.
*
* Finally, aIsDowngrade is set to true if the current application is older
* than that previously used by the profile.
*/
static bool CheckCompatibility(nsIFile* aProfileDir, const nsCString& aVersion,
const nsCString& aOSABI, nsIFile* aXULRunnerDir,
nsIFile* aAppDir, nsIFile* aFlagFile,
bool* aCachesOK, bool* aIsDowngrade,
nsCString& aLastVersion) {
*aCachesOK = false;
*aIsDowngrade = false;
gLastAppVersion.SetIsVoid(true);
gLastAppBuildID.SetIsVoid(true);
nsCOMPtr<nsIFile> file;
aProfileDir->Clone(getter_AddRefs(file));
if (!file) return false;
file->AppendNative(FILE_COMPATIBILITY_INFO);
nsINIParser parser;
nsresult rv = parser.Init(file);
if (NS_FAILED(rv)) return false;
rv = parser.GetString("Compatibility", "LastVersion", aLastVersion);
if (NS_FAILED(rv)) {
return false;
}
if (!aLastVersion.Equals(aVersion)) {
// The version is not the same. Whether it's a downgrade depends on an
// actual comparison:
*aIsDowngrade = 0 < CompareCompatVersions(aLastVersion, aVersion);
ExtractCompatVersionInfo(aLastVersion, gLastAppVersion, gLastAppBuildID);
return false;
}
// If we get here, the version matched, but there may still be other
// differences between us and the build that the profile last ran under.
gLastAppVersion.Assign(gAppData->version);
gLastAppBuildID.Assign(gAppData->buildID);
nsAutoCString buf;
rv = parser.GetString("Compatibility", "LastOSABI", buf);
if (NS_FAILED(rv) || !aOSABI.Equals(buf)) return false;
rv = parser.GetString("Compatibility", "LastPlatformDir", buf);
if (NS_FAILED(rv)) return false;
nsCOMPtr<nsIFile> lf;
rv = NS_NewLocalFileWithPersistentDescriptor(buf, getter_AddRefs(lf));
if (NS_FAILED(rv)) return false;
bool eq;
rv = lf->Equals(aXULRunnerDir, &eq);
if (NS_FAILED(rv) || !eq) return false;
if (aAppDir) {
rv = parser.GetString("Compatibility", "LastAppDir", buf);
if (NS_FAILED(rv)) return false;
rv = NS_NewLocalFileWithPersistentDescriptor(buf, getter_AddRefs(lf));
if (NS_FAILED(rv)) return false;
rv = lf->Equals(aAppDir, &eq);
if (NS_FAILED(rv) || !eq) return false;
}
// If we see this flag, caches are invalid.
rv = parser.GetString("Compatibility", "InvalidateCaches", buf);
*aCachesOK = (NS_FAILED(rv) || !buf.EqualsLiteral("1"));
bool purgeCaches = false;
if (aFlagFile && NS_SUCCEEDED(aFlagFile->Exists(&purgeCaches)) &&
purgeCaches) {
*aCachesOK = false;
}
return true;
}
void BuildCompatVersion(const char* aAppVersion, const char* aAppBuildID,
const char* aToolkitBuildID, nsACString& aBuf) {
aBuf.Assign(aAppVersion);
aBuf.Append('_');
aBuf.Append(aAppBuildID);
aBuf.Append('/');
aBuf.Append(aToolkitBuildID);
}
static void BuildVersion(nsCString& aBuf) {
BuildCompatVersion(gAppData->version, gAppData->buildID, gToolkitBuildID,
aBuf);
}
static void WriteVersion(nsIFile* aProfileDir, const nsCString& aVersion,
const nsCString& aOSABI, nsIFile* aXULRunnerDir,
nsIFile* aAppDir, bool invalidateCache) {
nsCOMPtr<nsIFile> file;
aProfileDir->Clone(getter_AddRefs(file));
if (!file) return;
file->AppendNative(FILE_COMPATIBILITY_INFO);
nsAutoCString platformDir;
Unused << aXULRunnerDir->GetPersistentDescriptor(platformDir);
nsAutoCString appDir;
if (aAppDir) Unused << aAppDir->GetPersistentDescriptor(appDir);
PRFileDesc* fd;
nsresult rv = file->OpenNSPRFileDesc(PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE,
0600, &fd);
if (NS_FAILED(rv)) {
NS_ERROR("could not create output stream");
return;
}
static const char kHeader[] = "[Compatibility]" NS_LINEBREAK "LastVersion=";
PR_Write(fd, kHeader, sizeof(kHeader) - 1);
PR_Write(fd, aVersion.get(), aVersion.Length());
static const char kOSABIHeader[] = NS_LINEBREAK "LastOSABI=";
PR_Write(fd, kOSABIHeader, sizeof(kOSABIHeader) - 1);
PR_Write(fd, aOSABI.get(), aOSABI.Length());
static const char kPlatformDirHeader[] = NS_LINEBREAK "LastPlatformDir=";
PR_Write(fd, kPlatformDirHeader, sizeof(kPlatformDirHeader) - 1);
PR_Write(fd, platformDir.get(), platformDir.Length());
static const char kAppDirHeader[] = NS_LINEBREAK "LastAppDir=";
if (aAppDir) {
PR_Write(fd, kAppDirHeader, sizeof(kAppDirHeader) - 1);
PR_Write(fd, appDir.get(), appDir.Length());
}
static const char kInvalidationHeader[] = NS_LINEBREAK "InvalidateCaches=1";
if (invalidateCache)
PR_Write(fd, kInvalidationHeader, sizeof(kInvalidationHeader) - 1);
static const char kNL[] = NS_LINEBREAK;
PR_Write(fd, kNL, sizeof(kNL) - 1);
PR_Close(fd);
}
/**
* Returns true if the startup cache file was successfully removed.
* Returns false if file->Clone fails at any point (OOM) or if unable
* to remove the startup cache file. Note in particular the return value
* is unaffected by a failure to remove extensions.ini
*/
static bool RemoveComponentRegistries(nsIFile* aProfileDir,
nsIFile* aLocalProfileDir,
bool aRemoveEMFiles) {
nsCOMPtr<nsIFile> file;
aProfileDir->Clone(getter_AddRefs(file));
if (!file) return false;
if (aRemoveEMFiles) {
file->SetNativeLeafName("extensions.ini"_ns);
file->Remove(false);
}
aLocalProfileDir->Clone(getter_AddRefs(file));
if (!file) return false;
file->AppendNative("startupCache"_ns);
nsresult rv = file->Remove(true);
return NS_SUCCEEDED(rv) || rv == NS_ERROR_FILE_NOT_FOUND;
}
// When we first initialize the crash reporter we don't have a profile,
// so we set the minidump path to $TEMP. Once we have a profile,
// we set it to $PROFILE/minidumps, creating the directory
// if needed.
static void MakeOrSetMinidumpPath(nsIFile* profD) {
nsCOMPtr<nsIFile> dumpD;
profD->Clone(getter_AddRefs(dumpD));
if (dumpD) {
bool fileExists;
// XXX: do some more error checking here
dumpD->Append(u"minidumps"_ns);
dumpD->Exists(&fileExists);
if (!fileExists) {
nsresult rv = dumpD->Create(nsIFile::DIRECTORY_TYPE, 0700);
NS_ENSURE_SUCCESS_VOID(rv);
}
nsAutoString pathStr;
if (NS_SUCCEEDED(dumpD->GetPath(pathStr)))
CrashReporter::SetMinidumpPath(pathStr);
}
}
const XREAppData* gAppData = nullptr;
/**
* NSPR will search for the "nspr_use_zone_allocator" symbol throughout
* the process and use it to determine whether the application defines its own
* memory allocator or not.
*
* Since most applications (e.g. Firefox and Thunderbird) don't use any special
* allocators and therefore don't define this symbol, NSPR must search the
* entire process, which reduces startup performance.
*
* By defining the symbol here, we can avoid the wasted lookup and hopefully
* improve startup performance.
*/
NS_VISIBILITY_DEFAULT PRBool nspr_use_zone_allocator = PR_FALSE;
#ifdef CAIRO_HAS_DWRITE_FONT
# include <dwrite.h>
# include "nsWindowsHelpers.h"
# ifdef DEBUG_DWRITE_STARTUP
# define LOGREGISTRY(msg) LogRegistryEvent(msg)
// for use when monitoring process
static void LogRegistryEvent(const wchar_t* msg) {
HKEY dummyKey;
HRESULT hr;
wchar_t buf[512];
wsprintf(buf, L" log %s", msg);
hr = RegOpenKeyEx(HKEY_LOCAL_MACHINE, buf, 0, KEY_READ, &dummyKey);
if (SUCCEEDED(hr)) {
RegCloseKey(dummyKey);
}
}
# else
# define LOGREGISTRY(msg)
# endif
static DWORD WINAPI InitDwriteBG(LPVOID lpdwThreadParam) {
SetThreadPriority(GetCurrentThread(), THREAD_MODE_BACKGROUND_BEGIN);
LOGREGISTRY(L"loading dwrite.dll");
HMODULE dwdll = LoadLibrarySystem32(L"dwrite.dll");
if (dwdll) {
decltype(DWriteCreateFactory)* createDWriteFactory =
(decltype(DWriteCreateFactory)*)GetProcAddress(dwdll,
"DWriteCreateFactory");
if (createDWriteFactory) {
LOGREGISTRY(L"creating dwrite factory");
IDWriteFactory* factory;
HRESULT hr = createDWriteFactory(DWRITE_FACTORY_TYPE_SHARED,
__uuidof(IDWriteFactory),
reinterpret_cast<IUnknown**>(&factory));
if (SUCCEEDED(hr)) {
LOGREGISTRY(L"dwrite factory done");
factory->Release();
LOGREGISTRY(L"freed factory");
} else {
LOGREGISTRY(L"failed to create factory");
}
}
}
SetThreadPriority(GetCurrentThread(), THREAD_MODE_BACKGROUND_END);
return 0;
}
#endif
#include "GeckoProfiler.h"
#include "ProfilerControl.h"
// Encapsulates startup and shutdown state for XRE_main
class XREMain {
public:
XREMain() = default;
~XREMain() {
mScopedXPCOM = nullptr;
mAppData = nullptr;
}
int XRE_main(int argc, char* argv[], const BootstrapConfig& aConfig);
int XRE_mainInit(bool* aExitFlag);
int XRE_mainStartup(bool* aExitFlag);
nsresult XRE_mainRun();
bool CheckLastStartupWasCrash();
nsCOMPtr<nsINativeAppSupport> mNativeApp;
RefPtr<nsToolkitProfileService> mProfileSvc;
nsCOMPtr<nsIFile> mProfD;
nsCOMPtr<nsIFile> mProfLD;
nsCOMPtr<nsIProfileLock> mProfileLock;
UniquePtr<ScopedXPCOMStartup> mScopedXPCOM;
UniquePtr<XREAppData> mAppData;
nsXREDirProvider mDirProvider;
#ifdef MOZ_WIDGET_GTK
nsAutoCString mXDGActivationToken;
nsAutoCString mDesktopStartupID;
#endif
bool mStartOffline = false;
nsAutoCString mOriginToForceQUIC;
#if defined(MOZ_HAS_REMOTE)
bool mDisableRemoteClient = false;
#endif
};
#if defined(XP_UNIX) && !defined(ANDROID)
static SmprintfPointer FormatUid(uid_t aId) {
if (const auto pw = getpwuid(aId)) {
return mozilla::Smprintf("%s", pw->pw_name);
}
return mozilla::Smprintf("uid %d", static_cast<int>(aId));
}
static bool CheckForUserMismatch() {
static char const* const kVars[] = {
"HOME",
# ifdef MOZ_WIDGET_GTK
"XDG_RUNTIME_DIR",
# endif
# ifdef MOZ_X11
"XAUTHORITY",
# endif
};
const uid_t euid = geteuid();
if (euid != 0) {
// On Linux it's possible to have superuser capabilities with a
// nonzero uid, but anyone who knows enough to make that happen
// probably knows enough to debug the resulting problems.
// Otherwise, a non-root user can't cause the problems we're
// concerned about.
return false;
}
for (const auto var : kVars) {
if (const auto path = PR_GetEnv(var)) {
struct stat st;
if (stat(path, &st) == 0) {
if (st.st_uid != euid) {
const auto owner = FormatUid(st.st_uid);
Output(true,
"Running " MOZ_APP_DISPLAYNAME
" as root in a regular"
" user's session is not supported. ($%s is %s which is"
" owned by %s.)\n",
var, path, owner.get());
return true;
}
}
}
}
return false;
}
#else // !XP_UNIX || ANDROID
static bool CheckForUserMismatch() { return false; }
#endif
void mozilla::startup::IncreaseDescriptorLimits() {
#ifdef XP_UNIX
// Increase the fd limit to accomodate IPC resources like shared memory.
# ifdef XP_DARWIN
// We use Mach IPC for shared memory, so a lower limit suffices.
// See also the Darwin case in config/external/nspr/pr/moz.build
static constexpr rlim_t kFDs = 4096;
# else // Unix but not Darwin
// This can be increased if needed, but also be aware that Linux
// distributions may impose hard limits less than this.
static constexpr rlim_t kFDs = 65536;
# endif // Darwin or not
struct rlimit rlim;
if (getrlimit(RLIMIT_NOFILE, &rlim) != 0) {
Output(false, "getrlimit: %s\n", strerror(errno));
return;
}
// Don't decrease the limit if it's already high enough, but don't
// try to go over the hard limit. (RLIM_INFINITY isn't required to
// be the numerically largest rlim_t, so don't assume that.)
if (rlim.rlim_cur != RLIM_INFINITY && rlim.rlim_cur < kFDs &&
rlim.rlim_cur < rlim.rlim_max) {
if (rlim.rlim_max != RLIM_INFINITY && rlim.rlim_max < kFDs) {
rlim.rlim_cur = rlim.rlim_max;
} else {
rlim.rlim_cur = kFDs;
}
if (setrlimit(RLIMIT_NOFILE, &rlim) != 0) {
Output(false, "setrlimit: %s\n", strerror(errno));
}
}
#endif
}
#ifdef XP_WIN
static uint32_t GetMicrocodeVersionByVendor(HKEY key, DWORD upper,
DWORD lower) {
WCHAR data[13]; // The CPUID vendor string is 12 characters long plus null
DWORD len = sizeof(data);
DWORD vtype;
if (RegQueryValueExW(key, L"VendorIdentifier", nullptr, &vtype,
reinterpret_cast<LPBYTE>(data), &len) == ERROR_SUCCESS) {
if (wcscmp(L"GenuineIntel", data) == 0) {
// Intel reports the microcode version in the upper 32 bits of the MSR
return upper;
}
if (wcscmp(L"AuthenticAMD", data) == 0) {
// AMD reports the microcode version in the lower 32 bits of the MSR
return lower;
}
// Unknown CPU vendor, return whatever half is non-zero
return lower ? lower : upper;
}
return 0; // No clue
}
#endif // XP_WIN
static void MaybeAddCPUMicrocodeCrashAnnotation() {
#ifdef XP_WIN
// Add CPU microcode version to the crash report as "CPUMicrocodeVersion".
// It feels like this code may belong in nsSystemInfo instead.
uint32_t cpuUpdateRevision = 0;
HKEY key;
static const WCHAR keyName[] =
L"HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0";
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, keyName, 0, KEY_QUERY_VALUE, &key) ==
ERROR_SUCCESS) {
DWORD updateRevision[2];
DWORD len = sizeof(updateRevision);
DWORD vtype;
// Windows 7 uses "Update Signature", 8 uses "Update Revision".
// For AMD CPUs, "CurrentPatchLevel" is sometimes used.
// Take the first one we find.
LPCWSTR choices[] = {L"Update Signature", L"Update Revision",
L"CurrentPatchLevel"};
for (const auto& oneChoice : choices) {
if (RegQueryValueExW(key, oneChoice, nullptr, &vtype,
reinterpret_cast<LPBYTE>(updateRevision),
&len) == ERROR_SUCCESS) {
if (vtype == REG_BINARY && len == sizeof(updateRevision)) {
cpuUpdateRevision = GetMicrocodeVersionByVendor(
key, updateRevision[1], updateRevision[0]);
break;
}
if (vtype == REG_DWORD && len == sizeof(updateRevision[0])) {
cpuUpdateRevision = static_cast<int>(updateRevision[0]);
break;
}
}
}
}
if (cpuUpdateRevision > 0) {
CrashReporter::RecordAnnotationNSCString(
CrashReporter::Annotation::CPUMicrocodeVersion,
nsPrintfCString("0x%" PRIx32, cpuUpdateRevision));
}
#endif
}
#if defined(MOZ_BACKGROUNDTASKS)
static void SetupConsoleForBackgroundTask(
const nsCString& aBackgroundTaskName) {
// We do not suppress output on Windows because:
// 1. Background task subprocesses launched via LaunchApp() does not attach to
// the console.
// 2. Suppressing output intermittently causes failures on when running
# ifndef XP_WIN
if (BackgroundTasks::IsNoOutputTaskName(aBackgroundTaskName) &&
!CheckArg("attach-console") &&
!EnvHasValue("MOZ_BACKGROUNDTASKS_IGNORE_NO_OUTPUT")) {
// Suppress output, somewhat crudely. We need to suppress stderr as well
// as stdout because assertions, of which there are many, write to stderr.
Unused << freopen("/dev/null", "w", stdout);
Unused << freopen("/dev/null", "w", stderr);
return;
}
# endif
printf_stderr("*** You are running in background task mode. ***\n");
}
#endif
/*
* XRE_mainInit - Initial setup and command line parameter processing.
* Main() will exit early if either return value != 0 or if aExitFlag is
* true.
*/
int XREMain::XRE_mainInit(bool* aExitFlag) {
if (!aExitFlag) return 1;
*aExitFlag = false;
atexit(UnexpectedExit);
auto expectedShutdown = mozilla::MakeScopeExit([&] { MozExpectedExit(); });
StartupTimeline::Record(StartupTimeline::MAIN);
if (CheckForUserMismatch()) {
return 1;
}
#ifdef XP_MACOSX
mozilla::MacAutoreleasePool pool;
DisableAppNap();
#endif
#ifdef MOZ_BACKGROUNDTASKS
Maybe<nsCString> backgroundTask = Nothing();
const char* backgroundTaskName = nullptr;
if (ARG_FOUND ==
CheckArg("backgroundtask", &backgroundTaskName, CheckArgFlag::None)) {
backgroundTask = Some(backgroundTaskName);
SetupConsoleForBackgroundTask(backgroundTask.ref());
}
BackgroundTasks::Init(backgroundTask);
#endif
#ifndef ANDROID
if (PR_GetEnv("MOZ_RUN_GTEST")
# ifdef FUZZING
|| PR_GetEnv("FUZZER")
# endif
# ifdef MOZ_BACKGROUNDTASKS
|| BackgroundTasks::IsBackgroundTaskMode()
# endif
) {
// Enable headless mode and assert that it worked, since gfxPlatform
// uses a static bool set after the first call to `IsHeadless`.
// Note: Android gtests seem to require an Activity and fail to start
// with headless mode enabled.
PR_SetEnv("MOZ_HEADLESS=1");
MOZ_ASSERT(gfxPlatform::IsHeadless());
}
#endif // ANDROID
if (PR_GetEnv("MOZ_CHAOSMODE")) {
ChaosFeature feature = ChaosFeature::Any;
long featureInt = strtol(PR_GetEnv("MOZ_CHAOSMODE"), nullptr, 16);
if (featureInt) {
// NOTE: MOZ_CHAOSMODE=0 or a non-hex value maps to Any feature.
feature = static_cast<ChaosFeature>(featureInt);
}
ChaosMode::SetChaosFeature(feature);
}
if (CheckArgExists("fxr")) {
gFxREmbedded = true;
}
if (ChaosMode::isActive(ChaosFeature::Any)) {
printf_stderr(
"*** You are running in chaos test mode. See ChaosMode.h. ***\n");
}
if (CheckArg("headless") || CheckArgExists("screenshot")) {
PR_SetEnv("MOZ_HEADLESS=1");
}
if (gfxPlatform::IsHeadless()) {
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK) || defined(XP_MACOSX)
printf_stderr("*** You are running in headless mode.\n");
#else
Output(
true,
"Error: headless mode is not currently supported on this platform.\n");
return 1;
#endif
#ifdef XP_MACOSX
// To avoid taking focus when running in headless mode immediately
// transition Firefox to a background application.
ProcessSerialNumber psn = {0, kCurrentProcess};
OSStatus transformStatus =
TransformProcessType(&psn, kProcessTransformToBackgroundApplication);
if (transformStatus != noErr) {
NS_ERROR("Failed to make process a background application.");
return 1;
}
#endif
}
gKioskMode = CheckArg("kiosk", nullptr, CheckArgFlag::None);
const char* kioskMonitorNumber = nullptr;
if (CheckArg("kiosk-monitor", &kioskMonitorNumber, CheckArgFlag::None)) {
gKioskMode = true;
gKioskMonitor = atoi(kioskMonitorNumber);
}
#if defined(NIGHTLY_BUILD)
if (XRE_IsParentProcess()) {
gAllowContentAnalysisArgPresent =
CheckArg("allow-content-analysis", nullptr, CheckArgFlag::None) ==
ARG_FOUND;
}
#endif
nsresult rv;
ArgResult ar;
#ifdef DEBUG
if (PR_GetEnv("XRE_MAIN_BREAK")) NS_BREAK();
#endif
mozilla::startup::IncreaseDescriptorLimits();
SetupErrorHandling(gArgv[0]);
#ifdef CAIRO_HAS_DWRITE_FONT
{
// starts the FntCache service if it isn't already running (it's set
// to manual startup by default in Windows 7 RTM). Subsequent DirectWrite
// calls cause the IDWriteFactory object to communicate with the FntCache
// service with a timeout; if there's no response after the timeout, the
// DirectWrite client library will assume the service isn't around and do
// manual font file I/O on _all_ system fonts. To avoid this, load the
// dwrite library and create a factory as early as possible so that the
// FntCache service is ready by the time it's needed.
CreateThread(nullptr, 0, &InitDwriteBG, nullptr, 0, nullptr);
}
#endif
#ifdef XP_UNIX
const char* home = PR_GetEnv("HOME");
if (!home || !*home) {
struct passwd* pw = getpwuid(geteuid());
if (!pw || !pw->pw_dir) {
Output(true, "Could not determine HOME directory");
return 1;
}
SaveWordToEnv("HOME", nsDependentCString(pw->pw_dir));
}
#endif
#ifdef MOZ_ACCESSIBILITY_ATK
// Suppress atk-bridge init at startup, until mozilla accessibility is
// initialized. This works after gnome 2.24.2.
SaveToEnv("NO_AT_BRIDGE=1");
#endif
// Check for application.ini overrides
const char* override = nullptr;
ar = CheckArg("override", &override);
if (ar == ARG_BAD) {
Output(true, "Incorrect number of arguments passed to --override");
return 1;
}
if (ar == ARG_FOUND) {
nsCOMPtr<nsIFile> overrideLF;
rv = XRE_GetFileFromPath(override, getter_AddRefs(overrideLF));
if (NS_FAILED(rv)) {
Output(true, "Error: unrecognized override.ini path.\n");
return 1;
}
rv = XRE_ParseAppData(overrideLF, *mAppData);
if (NS_FAILED(rv)) {
Output(true, "Couldn't read override.ini");
return 1;
}
}
// Check sanity and correctness of app data.
if (!mAppData->name) {
Output(true, "Error: App:Name not specified in application.ini\n");
return 1;
}
if (!mAppData->buildID) {
Output(true, "Error: App:BuildID not specified in application.ini\n");
return 1;
}
// XXX Originally ScopedLogging was here? Now it's in XRE_main above
// XRE_mainInit.
if (!mAppData->minVersion) {
Output(true, "Error: Gecko:MinVersion not specified in application.ini\n");
return 1;
}
if (!mAppData->maxVersion) {
// If no maxVersion is specified, we assume the app is only compatible
// with the initial preview release. Do not increment this number ever!
mAppData->maxVersion = "1.*";
}
if (mozilla::Version(mAppData->minVersion) > gToolkitVersion ||
mozilla::Version(mAppData->maxVersion) < gToolkitVersion) {
Output(true,
"Error: Platform version '%s' is not compatible with\n"
"minVersion >= %s\nmaxVersion <= %s\n"
"Maybe try to reinstall " MOZ_APP_DISPLAYNAME "?\n",
(const char*)gToolkitVersion, (const char*)mAppData->minVersion,
(const char*)mAppData->maxVersion);
return 1;
}
rv = mDirProvider.Initialize(mAppData->directory, mAppData->xreDirectory);
if (NS_FAILED(rv)) return 1;
if (EnvHasValue("MOZ_CRASHREPORTER")) {
mAppData->flags |= NS_XRE_ENABLE_CRASH_REPORTER;
}
nsCOMPtr<nsIFile> xreBinDirectory;
xreBinDirectory = mDirProvider.GetGREBinDir();
if ((mAppData->flags & NS_XRE_ENABLE_CRASH_REPORTER) &&
NS_SUCCEEDED(CrashReporter::SetExceptionHandler(xreBinDirectory))) {
nsCOMPtr<nsIFile> file;
rv = nsXREDirProvider::GetUserAppDataDirectory(getter_AddRefs(file));
if (NS_SUCCEEDED(rv)) {
CrashReporter::SetUserAppDataDirectory(file);
}
if (mAppData->crashReporterURL) {
CrashReporter::SetServerURL(
nsDependentCString(mAppData->crashReporterURL));
}
// We overwrite this once we finish starting up.
CrashReporter::RecordAnnotationBool(CrashReporter::Annotation::StartupCrash,
true);
// pass some basic info from the app data
if (mAppData->vendor) {
CrashReporter::RecordAnnotationCString(CrashReporter::Annotation::Vendor,
mAppData->vendor);
}
if (mAppData->name) {
CrashReporter::RecordAnnotationCString(
CrashReporter::Annotation::ProductName, mAppData->name);
}
if (mAppData->ID) {
CrashReporter::RecordAnnotationCString(
CrashReporter::Annotation::ProductID, mAppData->ID);
}
if (mAppData->version) {
CrashReporter::RecordAnnotationCString(CrashReporter::Annotation::Version,
mAppData->version);
}
if (mAppData->buildID) {
CrashReporter::RecordAnnotationCString(CrashReporter::Annotation::BuildID,
mAppData->buildID);
}
nsDependentCString releaseChannel(MOZ_STRINGIFY(MOZ_UPDATE_CHANNEL));
CrashReporter::RecordAnnotationNSCString(
CrashReporter::Annotation::ReleaseChannel, releaseChannel);
#ifdef XP_WIN
nsAutoString appInitDLLs;
if (widget::WinUtils::GetAppInitDLLs(appInitDLLs)) {
CrashReporter::RecordAnnotationNSString(
CrashReporter::Annotation::AppInitDLLs, appInitDLLs);
}
nsString packageFamilyName = widget::WinUtils::GetPackageFamilyName();
if (StringBeginsWith(packageFamilyName, u"Mozilla."_ns) ||
StringBeginsWith(packageFamilyName, u"MozillaCorporation."_ns)) {
CrashReporter::RecordAnnotationNSCString(
CrashReporter::Annotation::WindowsPackageFamilyName,
NS_ConvertUTF16toUTF8(packageFamilyName));
}
#endif
bool isBackgroundTaskMode = false;
#ifdef MOZ_BACKGROUNDTASKS
Maybe<nsCString> backgroundTasks = BackgroundTasks::GetBackgroundTasks();
if (backgroundTasks.isSome()) {
isBackgroundTaskMode = true;
CrashReporter::RecordAnnotationNSCString(
CrashReporter::Annotation::BackgroundTaskName, backgroundTasks.ref());
}
#endif
CrashReporter::RecordAnnotationBool(
CrashReporter::Annotation::BackgroundTaskMode, isBackgroundTaskMode);
CrashReporter::RecordAnnotationBool(CrashReporter::Annotation::HeadlessMode,
gfxPlatform::IsHeadless());
CrashReporter::SetRestartArgs(gArgc, gArgv);
// annotate other data (user id etc)
nsCOMPtr<nsIFile> userAppDataDir;
if (NS_SUCCEEDED(mDirProvider.GetUserAppDataDirectory(
getter_AddRefs(userAppDataDir)))) {
CrashReporter::SetupExtraData(userAppDataDir,
nsDependentCString(mAppData->buildID));
// see if we have a crashreporter-override.ini in the application
// directory
nsCOMPtr<nsIFile> overrideini;
if (NS_SUCCEEDED(
mDirProvider.GetAppDir()->Clone(getter_AddRefs(overrideini))) &&
NS_SUCCEEDED(
overrideini->AppendNative("crashreporter-override.ini"_ns))) {
#ifdef XP_WIN
nsAutoString overridePathW;
overrideini->GetPath(overridePathW);
NS_ConvertUTF16toUTF8 overridePath(overridePathW);
#else
nsAutoCString overridePath;
overrideini->GetNativePath(overridePath);
#endif
SaveWordToEnv("MOZ_CRASHREPORTER_STRINGS_OVERRIDE", overridePath);
}
}
} else {
// We might have registered a runtime exception module very early in process
// startup to catch early crashes. This is before we have access to ini file
// data, so unregister here if it turns out the crash reporter is disabled.
CrashReporter::UnregisterRuntimeExceptionModule();
}
#if defined(MOZ_SANDBOX) && defined(XP_WIN)
if (mAppData->sandboxBrokerServices) {
nsAutoString binDirPath;
MOZ_ALWAYS_SUCCEEDS(xreBinDirectory->GetPath(binDirPath));
SandboxBroker::Initialize(mAppData->sandboxBrokerServices, binDirPath);
} else {
# if defined(MOZ_SANDBOX)
// If we're sandboxing content and we fail to initialize, then crashing here
// seems like the sensible option.
if (BrowserTabsRemoteAutostart()) {
MOZ_CRASH("Failed to initialize broker services, can't continue.");
}
# endif
// Otherwise just warn for the moment, as most things will work.
NS_WARNING(
"Failed to initialize broker services, sandboxed processes will "
"fail to start.");
}
#endif
#ifdef XP_MACOSX
// Set up ability to respond to system (Apple) events. This must occur before
// ProcessUpdates to ensure that links clicked in external applications aren't
// lost when updates are pending.
SetupMacApplicationDelegate(&gRestartedByOS);
if (EnvHasValue("MOZ_LAUNCHED_CHILD")) {
// This is needed, on relaunch, to force the OS to use the "Cocoa Dock
// API". Otherwise the call to ReceiveNextEvent() below will make it
EnsureUseCocoaDockAPI();
// When the app relaunches, the original process exits. This causes
// the dock tile to stop bouncing, lose the "running" triangle, and
// if the tile does not permanently reside in the Dock, even disappear.
// This can be confusing to the user, who is expecting the app to launch.
// Calling ReceiveNextEvent without requesting any event is enough to
// cause a dock tile for the child process to appear.
const EventTypeSpec kFakeEventList[] = {{INT_MAX, INT_MAX}};
EventRef event;
::ReceiveNextEvent(GetEventTypeCount(kFakeEventList), kFakeEventList,
kEventDurationNoWait, false, &event);
}
if (CheckArg("foreground")) {
// The original process communicates that it was in the foreground by
// adding this argument. This new process, which is taking over for
// the old one, should make itself the active application.
ProcessSerialNumber psn;
if (::GetCurrentProcess(&psn) == noErr) ::SetFrontProcess(&psn);
}
#endif
SaveToEnv("MOZ_LAUNCHED_CHILD=");
// On Windows, the -os-restarted command line switch lets us know when we are
// restarted via RegisterApplicationRestart. May be used for other OSes later.
if (CheckArg("os-restarted", nullptr, CheckArgFlag::RemoveArg) == ARG_FOUND) {
gRestartedByOS = true;
}
gRestartArgc = gArgc;
gRestartArgv =
(char**)malloc(sizeof(char*) * (gArgc + 1 + (override ? 2 : 0)));
if (!gRestartArgv) {
return 1;
}
int i;
for (i = 0; i < gArgc; ++i) {
gRestartArgv[i] = gArgv[i];
}
// Add the -override argument back (it is removed automatically be CheckArg)
// if there is one
if (override) {
gRestartArgv[gRestartArgc++] = const_cast<char*>("-override");
gRestartArgv[gRestartArgc++] = const_cast<char*>(override);
}
gRestartArgv[gRestartArgc] = nullptr;
Maybe<bool> safeModeRequested = IsSafeModeRequested(gArgc, gArgv);
if (!safeModeRequested) {
return 1;
}
#ifdef MOZ_BACKGROUNDTASKS
if (BackgroundTasks::IsBackgroundTaskMode()) {
safeModeRequested = Some(false);
// Remove the --backgroundtask arg now that it has been saved in
// gRestartArgv.
const char* tmpBackgroundTaskName = nullptr;
Unused << CheckArg("backgroundtask", &tmpBackgroundTaskName,
CheckArgFlag::RemoveArg);
}
#endif
gSafeMode = safeModeRequested.value();
MaybeAddCPUMicrocodeCrashAnnotation();
CrashReporter::RegisterAnnotationBool(CrashReporter::Annotation::SafeMode,
&gSafeMode);
// Strip the now unsupported no-remote command line argument.
CheckArg("no-remote");
#if defined(MOZ_HAS_REMOTE)
// Handle the --new-instance command line arguments.
ar = CheckArg("new-instance");
if (ar == ARG_FOUND || EnvHasValue("MOZ_NEW_INSTANCE")) {
mDisableRemoteClient = true;
}
#else
// These arguments do nothing in platforms with no remoting support but we
// should remove them from the command line anyway.
CheckArg("new-instance");
#endif
ar = CheckArg("offline");
if (ar || EnvHasValue("XRE_START_OFFLINE")) {
mStartOffline = true;
}
const char* origin = nullptr;
if (!PR_GetEnv("MOZ_FORCE_QUIC_ON") &&
ARG_FOUND == CheckArg("origin-to-force-quic-on", &origin,
CheckArgFlag::RemoveArg)) {
mOriginToForceQUIC.Assign(origin);
}
// On Windows, to get working console arrangements so help/version/etc
// print something, we need to initialize the native app support.
rv = NS_CreateNativeAppSupport(getter_AddRefs(mNativeApp));
if (NS_FAILED(rv)) return 1;
// Handle --help, --full-version and --version command line arguments.
// They should return quickly, so we deal with them here.
if (CheckArg("h") || CheckArg("help") || CheckArg("?")) {
DumpHelp();
*aExitFlag = true;
return 0;
}
if (CheckArg("v") || CheckArg("version")) {
DumpVersion();
*aExitFlag = true;
return 0;
}
if (CheckArg("full-version")) {
DumpFullVersion();
*aExitFlag = true;
return 0;
}
#ifdef MOZ_ENABLE_DBUS
const char* dbusServiceLauncher = nullptr;
ar = CheckArg("dbus-service", &dbusServiceLauncher, CheckArgFlag::None);
if (ar == ARG_BAD) {
Output(true, "Missing launcher param for --dbus-service\n");
return 1;
}
if (ar == ARG_FOUND) {
UniquePtr<DBusService> dbusService =
MakeUnique<DBusService>(dbusServiceLauncher);
if (dbusService->Init()) {
dbusService->Run();
}
*aExitFlag = true;
return 0;
}
#endif
rv = XRE_InitCommandLine(gArgc, gArgv);
NS_ENSURE_SUCCESS(rv, 1);
return 0;
}
#if defined(XP_LINUX) && !defined(ANDROID)
static void AnnotateLSBRelease(void*) {
nsCString dist, desc, release, codename;
if (widget::lsb::GetLSBRelease(dist, desc, release, codename)) {
CrashReporter::AppendAppNotesToCrashReport(desc);
}
}
#endif // defined(XP_LINUX) && !defined(ANDROID)
#ifdef XP_WIN
static void ReadAheadSystemDll(const wchar_t* dllName) {
wchar_t dllPath[MAX_PATH];
if (ConstructSystem32Path(dllName, dllPath, MAX_PATH)) {
ReadAheadLib(dllPath);
}
}
static void ReadAheadPackagedDll(const wchar_t* dllName,
const wchar_t* aGREDir) {
wchar_t dllPath[MAX_PATH];
swprintf(dllPath, MAX_PATH, L"%s\\%s", aGREDir, dllName);
ReadAheadLib(dllPath);
}
static void ReadAheadDlls(const wchar_t* greDir) {
// order to reduce disk I/O and improve startup on Windows machines.
// Our ultimate goal is to measure the impact of these improvements on
// we should ensure this feature only ships to the nightly channel
// and monitor results from that subset.
if (greDir) {
// Prefetch the DLLs shipped with firefox
ReadAheadPackagedDll(L"libegl.dll", greDir);
ReadAheadPackagedDll(L"libGLESv2.dll", greDir);
ReadAheadPackagedDll(L"nssckbi.dll", greDir);
ReadAheadPackagedDll(L"freebl3.dll", greDir);
ReadAheadPackagedDll(L"softokn3.dll", greDir);
// Prefetch the system DLLs
ReadAheadSystemDll(L"DWrite.dll");
ReadAheadSystemDll(L"D3DCompiler_47.dll");
} else {
// Load DataExchange.dll and twinapi.appcore.dll for
// nsWindow::EnableDragDrop
ReadAheadSystemDll(L"DataExchange.dll");
ReadAheadSystemDll(L"twinapi.appcore.dll");
// Load twinapi.dll for WindowsUIUtils::UpdateTabletModeState
ReadAheadSystemDll(L"twinapi.dll");
// Load explorerframe.dll for WinTaskbar::Initialize
ReadAheadSystemDll(L"ExplorerFrame.dll");
// Load WinTypes.dll for nsOSHelperAppService::GetApplicationDescription
ReadAheadSystemDll(L"WinTypes.dll");
}
}
#endif
#if defined(MOZ_UPDATER) && !defined(MOZ_WIDGET_ANDROID)
enum struct ShouldNotProcessUpdatesReason {
DevToolsLaunching,
NotAnUpdatingTask,
OtherInstanceRunning,
FirstStartup
};
const char* ShouldNotProcessUpdatesReasonAsString(
ShouldNotProcessUpdatesReason aReason) {
switch (aReason) {
case ShouldNotProcessUpdatesReason::DevToolsLaunching:
return "DevToolsLaunching";
case ShouldNotProcessUpdatesReason::NotAnUpdatingTask:
return "NotAnUpdatingTask";
case ShouldNotProcessUpdatesReason::OtherInstanceRunning:
return "OtherInstanceRunning";
default:
MOZ_CRASH("impossible value for ShouldNotProcessUpdatesReason");
}
}
Maybe<ShouldNotProcessUpdatesReason> ShouldNotProcessUpdates(
nsXREDirProvider& aDirProvider) {
// Don't process updates when launched from the installer.
// It's possible for a stale update to be present in the case of a paveover;
// ignore it and leave the update service to discard it.
if (ARG_FOUND == CheckArgExists("first-startup")) {
NS_WARNING("ShouldNotProcessUpdates(): FirstStartup");
return Some(ShouldNotProcessUpdatesReason::FirstStartup);
}
// Do not process updates if we're launching devtools, as evidenced by
// "--chrome ..." with the browser toolbox chrome document URL.
// Keep this synchronized with the value of the same name in
// devtools/client/framework/browser-toolbox/Launcher.sys.mjs. Or, for bonus
// points, lift this value to nsIXulRuntime or similar, so that it can be
// accessed in both locations. (The prefs service isn't available at this
// point so the simplest manner of sharing the value is not available to us.)
const char* BROWSER_TOOLBOX_WINDOW_URL =
"chrome://devtools/content/framework/browser-toolbox/window.html";
const char* chromeParam = nullptr;
if (ARG_FOUND == CheckArg("chrome", &chromeParam, CheckArgFlag::None)) {
if (!chromeParam || !strcmp(BROWSER_TOOLBOX_WINDOW_URL, chromeParam)) {
NS_WARNING("ShouldNotProcessUpdates(): DevToolsLaunching");
return Some(ShouldNotProcessUpdatesReason::DevToolsLaunching);
}
}
# ifdef MOZ_BACKGROUNDTASKS
// Do not process updates if we're running a background task mode and another
// instance is already running. This avoids periodic maintenance updating
// underneath a browsing session.
Maybe<nsCString> backgroundTasks = BackgroundTasks::GetBackgroundTasks();
if (backgroundTasks.isSome()) {
// Only process updates for specific tasks: at this time, the
// `backgroundupdate` task and the test-only `shouldprocessupdates` task.
//
// Background tasks can be sparked by Firefox instances that are shutting
// down, which can cause races between the task startup trying to update and
// Firefox trying to invoke the updater. This happened when converting
// `pingsender` to a background task, since it is launched to send pings at
//
// We'd prefer to have this be a property of the task definition sibling to
// `backgroundTaskTimeoutSec`, but when we reach this code we're well before
// we can load the task JSM.
if (!BackgroundTasks::IsUpdatingTaskName(backgroundTasks.ref())) {
NS_WARNING("ShouldNotProcessUpdates(): NotAnUpdatingTask");
return Some(ShouldNotProcessUpdatesReason::NotAnUpdatingTask);
}
// At this point we have a dir provider but no XPCOM directory service. We
// launch the update sync manager using that information so that it doesn't
// need to ask for (and fail to find) the directory service.
nsCOMPtr<nsIFile> anAppFile;
bool persistent;
nsresult rv = aDirProvider.GetFile(XRE_EXECUTABLE_FILE, &persistent,
getter_AddRefs(anAppFile));
if (NS_FAILED(rv) || !anAppFile) {
// Strange, but not a reason to skip processing updates.
return Nothing();
}
auto updateSyncManager = new nsUpdateSyncManager(anAppFile);
bool otherInstance = false;
updateSyncManager->IsOtherInstanceRunning(&otherInstance);
if (otherInstance) {
NS_WARNING("ShouldNotProcessUpdates(): OtherInstanceRunning");
return Some(ShouldNotProcessUpdatesReason::OtherInstanceRunning);
}
}
# endif
return Nothing();
}
#endif
namespace mozilla::startup {
Result<nsCOMPtr<nsIFile>, nsresult> GetIncompleteStartupFile(nsIFile* aProfLD) {
nsCOMPtr<nsIFile> crashFile;
MOZ_TRY(aProfLD->Clone(getter_AddRefs(crashFile)));
MOZ_TRY(crashFile->Append(FILE_STARTUP_INCOMPLETE));
return std::move(crashFile);
}
} // namespace mozilla::startup
// Check whether the last startup attempt resulted in a crash or hang.
// This is distinct from the definition of a startup crash from
// nsAppStartup::TrackStartupCrashBegin.
bool XREMain::CheckLastStartupWasCrash() {
Result<nsCOMPtr<nsIFile>, nsresult> crashFile =
GetIncompleteStartupFile(mProfLD);
if (crashFile.isErr()) {
return true;
}
// Attempt to create the incomplete startup canary file. If the file already
// exists, this fails, and we know the last startup was a crash. If it
// doesn't already exist, it is created, and will be removed at the end of
// the startup crash detection window.
AutoFDClose fd;
Unused << crashFile.inspect()->OpenNSPRFileDesc(
PR_WRONLY | PR_CREATE_FILE | PR_EXCL, 0666, getter_Transfers(fd));
return !fd;
}
/*
* XRE_mainStartup - Initializes the profile and various other services.
* Main() will exit early if either return value != 0 or if aExitFlag is
* true.
*/
int XREMain::XRE_mainStartup(bool* aExitFlag) {
nsresult rv;
if (!aExitFlag) return 1;
*aExitFlag = false;
#ifdef XP_MACOSX
mozilla::MacAutoreleasePool pool;
#endif
// Enable Telemetry IO Reporting on DEBUG, nightly and local builds,
// but disable it on FUZZING builds and for ANDROID.
#ifndef FUZZING
# ifndef ANDROID
# ifdef DEBUG
mozilla::Telemetry::InitIOReporting(gAppData->xreDirectory);
# else
{
const char* releaseChannel = MOZ_STRINGIFY(MOZ_UPDATE_CHANNEL);
if (strcmp(releaseChannel, "nightly") == 0 ||
strcmp(releaseChannel, "default") == 0) {
mozilla::Telemetry::InitIOReporting(gAppData->xreDirectory);
}
}
# endif /* DEBUG */
# endif /* ANDROID */
#endif /* FUZZING */
#if defined(XP_WIN)
// Enable the HeapEnableTerminationOnCorruption exploit mitigation. We ignore
// the return code because it always returns success, although it has no
// effect on Windows older than XP SP3.
HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
#endif /* XP_WIN */
#ifdef MOZ_WIDGET_GTK
// Stash startup token in owned memory because gtk_init will clear
// DESKTOP_STARTUP_ID it.
if (const char* v = PR_GetEnv("DESKTOP_STARTUP_ID")) {
mDesktopStartupID.Assign(v);
}
if (const char* v = PR_GetEnv("XDG_ACTIVATION_TOKEN")) {
mXDGActivationToken.Assign(v);
}
#endif
#if defined(XP_WIN)
{
// Save the shortcut path before lpTitle is replaced by an AUMID,
// such as by WinTaskbar
STARTUPINFOW si;
GetStartupInfoW(&si);
if (si.dwFlags & STARTF_TITLEISAPPID) {
NS_WARNING("AUMID was already set, shortcut may have been lost.");
} else if ((si.dwFlags & STARTF_TITLEISLINKNAME) && si.lpTitle) {
gProcessStartupShortcut.Assign(si.lpTitle);
}
}
#endif /* XP_WIN */
#if defined(MOZ_WIDGET_GTK)
// setup for private colormap. Ideally we'd like to do this
// in nsAppShell::Create, but we need to get in before gtk
// has been initialized to make sure everything is running
// consistently.
// Set program name to the one defined in application.ini.
g_set_prgname(gAppData->remotingName);
// Initialize GTK here for splash.
# if defined(MOZ_WIDGET_GTK) && defined(MOZ_X11)
// Disable XInput2 multidevice support due to focus bugginess.
// See bugs 1182700, 1170342.
// gdk_disable_multidevice() affects Gdk X11 backend only,
// the multidevice support is always enabled on Wayland backend.
const char* useXI2 = PR_GetEnv("MOZ_USE_XINPUT2");
if (!useXI2 || (*useXI2 == '0')) gdk_disable_multidevice();
# endif
// Open the display ourselves instead of using gtk_init, so that we can
// close it without fear that one day gtk might clean up the display it
// opens.
if (!gtk_parse_args(&gArgc, &gArgv)) return 1;
#endif /* MOZ_WIDGET_GTK */
#ifdef FUZZING
if (PR_GetEnv("FUZZER")) {
*aExitFlag = true;
return mozilla::fuzzerRunner->Run(&gArgc, &gArgv);
}
#endif
if (PR_GetEnv("MOZ_RUN_GTEST")) {
int result;
#ifdef XP_WIN
UseParentConsole();
#endif
// RunGTest will only be set if we're in xul-unit
if (mozilla::RunGTest) {
gIsGtest = true;
result = mozilla::RunGTest(&gArgc, gArgv);
gIsGtest = false;
} else {
result = 1;
printf("TEST-UNEXPECTED-FAIL | gtest | Not compiled with enable-tests\n");
}
*aExitFlag = true;
return result;
}
bool isBackgroundTaskMode = false;
#ifdef MOZ_BACKGROUNDTASKS
isBackgroundTaskMode = BackgroundTasks::IsBackgroundTaskMode();
#endif
#ifdef MOZ_HAS_REMOTE
if (gfxPlatform::IsHeadless()) {
mDisableRemoteClient = true;
}
#endif
#ifdef MOZ_X11
// Init X11 in thread-safe mode. Must be called prior to the first call to
// XOpenDisplay (called inside gdk_display_open). This is a requirement for
// off main tread compositing.
if (!isBackgroundTaskMode && !gfxPlatform::IsHeadless()) {
XInitThreads();
}
#endif
#if defined(MOZ_WIDGET_GTK)
if (!isBackgroundTaskMode && !gfxPlatform::IsHeadless()) {
const char* display_name = nullptr;
bool saveDisplayArg = false;
// display_name is owned by gdk.
display_name = gdk_get_display_arg_name();
bool waylandEnabled = IsWaylandEnabled();
# ifdef MOZ_WAYLAND
if (!display_name) {
auto* proxyEnv = getenv("MOZ_DISABLE_WAYLAND_PROXY");
bool disableWaylandProxy = proxyEnv && *proxyEnv;
if (!disableWaylandProxy && XRE_IsParentProcess() && waylandEnabled) {
auto* proxyLog = getenv("WAYLAND_PROXY_LOG");
WaylandProxy::SetVerbose(proxyLog && *proxyLog);
WaylandProxy::SetCompositorCrashHandler(WlCompositorCrashHandler);
WaylandProxy::AddState(WAYLAND_PROXY_ENABLED);
gWaylandProxy = WaylandProxy::Create();
if (gWaylandProxy) {
if (!gWaylandProxy->RunThread()) {
Output(true, "Failed to run Wayland proxy\n");
}
}
} else {
WaylandProxy::AddState(WAYLAND_PROXY_DISABLED);
}
}
# endif
// if --display argument is given make sure it's
// also passed to ContentChild::Init() by MOZ_GDK_DISPLAY.
if (display_name) {
SaveWordToEnv("MOZ_GDK_DISPLAY", nsDependentCString(display_name));
saveDisplayArg = true;
}
// On Wayland disabled builds read X11 DISPLAY env exclusively
// and don't care about different displays.
if (!waylandEnabled && !display_name) {
display_name = PR_GetEnv("DISPLAY");
if (!display_name) {
PR_fprintf(PR_STDERR,
"Error: no DISPLAY environment variable specified\n");
return 1;
}
}
if (display_name) {
GdkDisplay* disp = gdk_display_open(display_name);
if (!disp) {
PR_fprintf(PR_STDERR, "Error: cannot open display: %s\n", display_name);
return 1;
}
if (saveDisplayArg) {
if (GdkIsX11Display(disp)) {
SaveWordToEnv("DISPLAY", nsDependentCString(display_name));
} else if (GdkIsWaylandDisplay(disp)) {
SaveWordToEnv("WAYLAND_DISPLAY", nsDependentCString(display_name));
}
}
} else {
gdk_display_manager_open_display(gdk_display_manager_get(), nullptr);
}
# if defined(MOZ_WAYLAND)
// We want to use proxy for main connection only so
// restore original Wayland display for next potential Wayland connections
// from gfx probe code and so on.
if (gWaylandProxy) {
gWaylandProxy->RestoreWaylandDisplay();
}
if (waylandEnabled && PR_GetEnv("WAYLAND_DISPLAY") && GdkIsX11Display()) {
// Gtk somehow switched to X11 display but we want Wayland.
// It may happen if compositor response is missig or it's slow
// or WAYLAND_DISPLAY is wrong. In such case throw warning but
// run with X11.
Output(true,
"Error: Failed to open Wayland display, fallback to X11. "
"WAYLAND_DISPLAY='%s' DISPLAY='%s'\n",
PR_GetEnv("WAYLAND_DISPLAY"), PR_GetEnv("DISPLAY"));
// We need to unset WAYLAND_DISPLAY. Gfx probe code doesn't have fallback
// to X11 and we'll end with Browser running SW rendering only then.
g_unsetenv("WAYLAND_DISPLAY");
gWaylandProxy = nullptr;
}
# endif
if (!gdk_display_get_default()) {
Output(true,
"Error: we don't have any display, WAYLAND_DISPLAY='%s' "
"DISPLAY='%s'\n",
PR_GetEnv("WAYLAND_DISPLAY"), PR_GetEnv("DISPLAY"));
return 1;
}
// Check that Wayland only and X11 only builds
// use appropriate displays.
# if defined(MOZ_WAYLAND) && !defined(MOZ_X11)
if (!GdkIsWaylandDisplay()) {
Output(true, "Wayland only build is missig Wayland display!\n");
return 1;
}
# endif
# if !defined(MOZ_WAYLAND) && defined(MOZ_X11)
if (!GdkIsX11Display()) {
Output(true, "X11 only build is missig X11 display!\n");
return 1;
}
# endif
}
#endif
#if defined(MOZ_HAS_REMOTE)
// handle --remote now that xpcom is fired up
gRemoteService = new nsRemoteService();
if (gRemoteService) {
gRemoteService->SetProgram(gAppData->remotingName);
gStartupLock = gRemoteService->LockStartup();
if (!gStartupLock) {
NS_WARNING("Failed to lock for startup, continuing anyway.");
}
}
#endif
#if defined(MOZ_WIDGET_GTK)
g_set_application_name(mAppData->name);
#endif /* defined(MOZ_WIDGET_GTK) */
#ifdef MOZ_X11
// Do this after initializing GDK, or GDK will install its own handler.
XRE_InstallX11ErrorHandler();
#endif
bool canRun = false;
rv = mNativeApp->Start(&canRun);
if (NS_FAILED(rv) || !canRun) {
return 1;
}
#ifdef MOZ_WIDGET_GTK
// startup token might be cleared now, we recover it in case we need a
// restart.
if (!mDesktopStartupID.IsEmpty()) {
// Leak it with extreme prejudice!
PR_SetEnv(ToNewCString("DESKTOP_STARTUP_ID="_ns + mDesktopStartupID));
}
if (!mXDGActivationToken.IsEmpty()) {
// Leak it with extreme prejudice!
PR_SetEnv(ToNewCString("XDG_ACTIVATION_TOKEN="_ns + mXDGActivationToken));
}
#endif
if (CheckArg("test-launch-without-hang")) {
*aExitFlag = true;
return 0;
}
mProfileSvc = NS_GetToolkitProfileService();
if (!mProfileSvc) {
// We failed to choose or create profile - notify user and quit
ProfileMissingDialog(mNativeApp);
return 1;
}
bool wasDefaultSelection;
nsCOMPtr<nsIToolkitProfile> profile;
rv = SelectProfile(mProfileSvc, mNativeApp, getter_AddRefs(mProfD),
getter_AddRefs(mProfLD), getter_AddRefs(profile),
&wasDefaultSelection);
if (rv == NS_ERROR_LAUNCHED_CHILD_PROCESS || rv == NS_ERROR_ABORT) {
*aExitFlag = true;
return 0;
}
if (NS_FAILED(rv)) {
// We failed to choose or create profile - notify user and quit
ProfileMissingDialog(mNativeApp);
return 1;
}
#if defined(MOZ_HAS_REMOTE)
if (gRemoteService) {
// Use the full profile path to identify the profile.
nsCString profilePath;
# ifdef XP_WIN
nsString path;
rv = mProfD->GetPath(path);
if (NS_SUCCEEDED(rv)) {
CopyUTF16toUTF8(path, profilePath);
}
# else
rv = mProfD->GetNativePath(profilePath);
# endif
if (NS_SUCCEEDED(rv)) {
gRemoteService->SetProfile(profilePath);
if (!mDisableRemoteClient) {
// Try to remote the entire command line. If this fails, start up
// normally.
# ifdef MOZ_WIDGET_GTK
auto& startupToken =
GdkIsWaylandDisplay() ? mXDGActivationToken : mDesktopStartupID;
# ifdef MOZ_X11
if (GdkIsX11Display() && startupToken.IsEmpty()) {
startupToken = SynthesizeStartupToken();
}
# endif /* MOZ_X11 */
gRemoteService->SetStartupToken(startupToken);
# endif
rv = gRemoteService->StartClient();
if (rv == NS_ERROR_NOT_AVAILABLE && profile) {
// Older versions would use the profile name in preference to the
// path.
nsCString profileName;
profile->GetName(profileName);
gRemoteService->SetProfile(profileName);
rv = gRemoteService->StartClient();
// Reset back to the path.
gRemoteService->SetProfile(profilePath);
}
if (NS_SUCCEEDED(rv)) {
*aExitFlag = true;
gStartupLock = nullptr;
return 0;
}
if (rv == NS_ERROR_INVALID_ARG) {
gStartupLock = nullptr;
return 1;
}
}
}
}
#endif /* MOZ_HAS_REMOTE */
#if defined(MOZ_UPDATER) && !defined(MOZ_WIDGET_ANDROID)
# ifdef XP_WIN
{
// When automatically restarting for a staged background update
// we want the child process to wait here so that the updater
// does not register two instances running and use that as a
// reason to not process updates. This function requires having
// -restart-pid <param> in the command line to function properly.
// Ensure we keep -restart-pid if we are running tests
if (ARG_FOUND == CheckArgExists("restart-pid") &&
!CheckArg("test-only-automatic-restart-no-wait")) {
// We're not testing and can safely remove it now and read the pid.
const char* restartPidString = nullptr;
CheckArg("restart-pid", &restartPidString, CheckArgFlag::RemoveArg);
// pid should be first parameter following -restart-pid.
uint32_t pid = nsDependentCString(restartPidString).ToInteger(&rv, 10U);
if (NS_SUCCEEDED(rv) && pid > 0) {
printf_stderr(
"*** MaybeWaitForProcessExit: launched pidDWORD = %u ***\n", pid);
RefPtr<nsUpdateProcessor> updater = new nsUpdateProcessor();
if (NS_FAILED(
updater->WaitForProcessExit(pid, MAYBE_WAIT_TIMEOUT_MS))) {
NS_WARNING("Failed to MaybeWaitForProcessExit.");
}
} else {
NS_WARNING("Failed to parse pid from -restart-pid.");
}
}
}
# endif
Maybe<ShouldNotProcessUpdatesReason> shouldNotProcessUpdatesReason =
ShouldNotProcessUpdates(mDirProvider);
if (shouldNotProcessUpdatesReason.isNothing()) {
// Check for and process any available updates
nsCOMPtr<nsIFile> updRoot;
bool persistent;
rv = mDirProvider.GetFile(XRE_UPDATE_ROOT_DIR, &persistent,
getter_AddRefs(updRoot));
// XRE_UPDATE_ROOT_DIR may fail. Fallback to appDir if failed
if (NS_FAILED(rv)) {
updRoot = mDirProvider.GetAppDir();
}
// If the MOZ_TEST_PROCESS_UPDATES environment variable already exists, then
// we are being called from the callback application.
if (EnvHasValue("MOZ_TEST_PROCESS_UPDATES")) {
// If the caller has asked us to log our arguments, do so. This is used
// to make sure that the maintenance service successfully launches the
// callback application.
const char* logFile = nullptr;
if (ARG_FOUND == CheckArg("dump-args", &logFile)) {
FILE* logFP = fopen(logFile, "wb");
if (logFP) {
for (int i = 1; i < gRestartArgc; ++i) {
fprintf(logFP, "%s\n", gRestartArgv[i]);
}
fclose(logFP);
}
}
*aExitFlag = true;
return 0;
}
// Support for processing an update and exiting. The
// MOZ_TEST_PROCESS_UPDATES environment variable will be part of the
// updater's environment and the application that is relaunched by the
// updater. When the application is relaunched by the updater it will be
// removed below and the application will exit.
if (CheckArg("test-process-updates")) {
SaveToEnv("MOZ_TEST_PROCESS_UPDATES=1");
}
nsCOMPtr<nsIFile> exeFile, exeDir;
rv = mDirProvider.GetFile(XRE_EXECUTABLE_FILE, &persistent,
getter_AddRefs(exeFile));
NS_ENSURE_SUCCESS(rv, 1);
rv = exeFile->GetParent(getter_AddRefs(exeDir));
NS_ENSURE_SUCCESS(rv, 1);
ProcessUpdates(mDirProvider.GetGREDir(), exeDir, updRoot, gRestartArgc,
gRestartArgv, mAppData->version);
if (EnvHasValue("MOZ_TEST_PROCESS_UPDATES")) {
SaveToEnv("MOZ_TEST_PROCESS_UPDATES=");
*aExitFlag = true;
return 0;
}
} else {
if (CheckArg("test-process-updates") ||
EnvHasValue("MOZ_TEST_PROCESS_UPDATES")) {
// Support for testing *not* processing an update. The launched process
// can witness this environment variable and conclude that its runtime
// environment resulted in not processing updates.
SaveToEnv(nsPrintfCString(
"MOZ_TEST_PROCESS_UPDATES=ShouldNotProcessUpdates(): %s",
ShouldNotProcessUpdatesReasonAsString(
shouldNotProcessUpdatesReason.value()))
.get());
}
}
#endif
// We now know there is no existing instance using the selected profile.
// We only ever show the profile selector if a specific profile wasn't chosen
// via command line arguments or environment variables.
if (wasDefaultSelection) {
if (!mProfileSvc->GetStartWithLastProfile()) {
// First check the old style profile manager
rv = ShowProfileManager(mProfileSvc, mNativeApp);
} else if (profile && profile->GetShowProfileSelector()) {
// Now check the new profile group selector
rv = ShowProfileSelector(mProfileSvc, mNativeApp);
} else {
rv = NS_OK;
}
if (rv == NS_ERROR_LAUNCHED_CHILD_PROCESS || rv == NS_ERROR_ABORT) {
*aExitFlag = true;
return 0;
}
if (NS_FAILED(rv)) {
return 1;
}
}
// We always want to lock the profile even if we're actually going to reset
// it later.
rv = LockProfile(mNativeApp, mProfD, mProfLD, profile,
getter_AddRefs(mProfileLock));
if (rv == NS_ERROR_LAUNCHED_CHILD_PROCESS || rv == NS_ERROR_ABORT) {
*aExitFlag = true;
return 0;
}
if (NS_FAILED(rv)) {
return 1;
}
if (gDoProfileReset) {
if (!EnvHasValue("MOZ_RESET_PROFILE_RESTART")) {
if (ARG_FOUND == CheckArgExists("first-startup")) {
// If the profile reset was initiated by the stub installer, we want to
// set MOZ_RESET_PROFILE_SESSION so we can check for it later when the
// Firefox Profile Migrator runs. At that point we set overrides to
// ensure users see the right homepage.
SaveToEnv("MOZ_RESET_PROFILE_SESSION=0");
} else if (gDoMigration) {
// Otherwise this is a profile reset and migration triggered via the
// command line during development and we want to restore the session
// and perform the approriate homepage overrides.
SaveToEnv("MOZ_RESET_PROFILE_SESSION=1");
}
} else {
// If the profile reset was initiated by the user, such as through
// about:support, we want to restore their session.
SaveToEnv("MOZ_RESET_PROFILE_SESSION=1");
SaveToEnv("MOZ_RESET_PROFILE_RESTART=");
}
// Unlock the source profile.
mProfileLock->Unlock();
// If we're resetting a profile, create a new one and use it to startup.
gResetOldProfile = profile;
rv = mProfileSvc->CreateResetProfile(getter_AddRefs(profile));
if (NS_SUCCEEDED(rv)) {
rv = profile->GetRootDir(getter_AddRefs(mProfD));
NS_ENSURE_SUCCESS(rv, 1);
SaveFileToEnv("XRE_PROFILE_PATH", mProfD);
rv = profile->GetLocalDir(getter_AddRefs(mProfLD));
NS_ENSURE_SUCCESS(rv, 1);
SaveFileToEnv("XRE_PROFILE_LOCAL_PATH", mProfLD);
// Lock the new profile
rv = LockProfile(mNativeApp, mProfD, mProfLD, profile,
getter_AddRefs(mProfileLock));
if (rv == NS_ERROR_LAUNCHED_CHILD_PROCESS || rv == NS_ERROR_ABORT) {
*aExitFlag = true;
return 0;
}
if (NS_FAILED(rv)) {
return 1;
}
} else {
NS_WARNING("Profile reset failed.");
return 1;
}
}
gProfileLock = mProfileLock;
nsAutoCString version;
BuildVersion(version);
#ifdef TARGET_OS_ABI
constexpr auto osABI = nsLiteralCString{TARGET_OS_ABI};
#else
// No TARGET_XPCOM_ABI, but at least the OS is known
constexpr auto osABI = nsLiteralCString{OS_TARGET "_UNKNOWN"};
#endif
// Check for version compatibility with the last version of the app this
// profile was started with. The format of the version stamp is defined
// by the BuildVersion function.
// Also check to see if something has happened to invalidate our
// fastload caches, like an app upgrade.
// If we see .purgecaches, that means someone did a make.
// Re-register components to catch potential changes.
nsCOMPtr<nsIFile> flagFile;
if (mAppData->directory) {
Unused << mAppData->directory->Clone(getter_AddRefs(flagFile));
}
if (flagFile) {
flagFile->AppendNative(FILE_INVALIDATE_CACHES);
}
bool cachesOK;
bool isDowngrade;
nsCString lastVersion;
bool versionOK = CheckCompatibility(
mProfD, version, osABI, mDirProvider.GetGREDir(), mAppData->directory,
flagFile, &cachesOK, &isDowngrade, lastVersion);
MOZ_RELEASE_ASSERT(!cachesOK || lastVersion.Equals(version),
"Caches cannot be good if the version has changed.");
#ifdef MOZ_BLOCK_PROFILE_DOWNGRADE
// The argument check must come first so the argument is always removed from
// the command line regardless of whether this is a downgrade or not.
if (!CheckArg("allow-downgrade") && isDowngrade &&
!EnvHasValue("MOZ_ALLOW_DOWNGRADE")) {
# ifdef XP_MACOSX
InitializeMacApp();
# endif
rv = CheckDowngrade(mProfD, mNativeApp, mProfileSvc, lastVersion);
if (rv == NS_ERROR_LAUNCHED_CHILD_PROCESS || rv == NS_ERROR_ABORT) {
*aExitFlag = true;
return 0;
}
}
#endif
rv = mDirProvider.SetProfile(mProfD, mProfLD);
NS_ENSURE_SUCCESS(rv, 1);
//////////////////////// NOW WE HAVE A PROFILE ////////////////////////
mozilla::Telemetry::SetProfileDir(mProfD);
if (mAppData->flags & NS_XRE_ENABLE_CRASH_REPORTER) {
MakeOrSetMinidumpPath(mProfD);
}
CrashReporter::SetProfileDirectory(mProfD);
#ifdef MOZ_ASAN_REPORTER
// In ASan reporter builds, we need to set ASan's log_path as early as
// possible, so it dumps its errors into files there instead of using
// the default stderr location. Since this is crucial for ASan reporter
// to work at all (and we don't want people to use a non-functional
// ASan reporter build), all failures while setting log_path are fatal.
setASanReporterPath(mProfD);
// Export to env for child processes
SaveFileToEnv("ASAN_REPORTER_PATH", mProfD);
#endif
bool lastStartupWasCrash = CheckLastStartupWasCrash();
CrashReporter::RecordAnnotationBool(
CrashReporter::Annotation::LastStartupWasCrash, lastStartupWasCrash);
if (CheckArg("purgecaches") || PR_GetEnv("MOZ_PURGE_CACHES") ||
lastStartupWasCrash || gSafeMode) {
cachesOK = false;
}
CrashReporter::RecordAnnotationBool(
CrashReporter::Annotation::StartupCacheValid, cachesOK && versionOK);
// Every time a profile is loaded by a build with a different version,
// it updates the compatibility.ini file saying what version last wrote
// the fastload caches. On subsequent launches if the version matches,
// there is no need for re-registration. If the user loads the same
// profile in different builds the component registry must be
// re-generated to prevent mysterious component loading failures.
//
bool startupCacheValid = true;
if (!cachesOK || !versionOK) {
QuotaManager::InvalidateQuotaCache();
startupCacheValid = RemoveComponentRegistries(mProfD, mProfLD, false);
// Rewrite compatibility.ini to match the current build. The next run
// should attempt to invalidate the caches if either this run is safe mode
// or the attempt to invalidate the caches this time failed.
WriteVersion(mProfD, version, osABI, mDirProvider.GetGREDir(),
mAppData->directory, gSafeMode || !startupCacheValid);
}
if (!startupCacheValid) StartupCache::IgnoreDiskCache();
if (flagFile) {
flagFile->Remove(true);
}
// Flush any pending page load events.
mozilla::glean_pings::Pageload.Submit("startup"_ns);
if (!isBackgroundTaskMode) {
#ifdef USE_GLX_TEST
GfxInfo::FireGLXTestProcess();
#endif
#ifdef MOZ_WAYLAND
// Make sure we have wayland connection for main thread.
// It's used as template to create display connections
// for different threads.
if (IsWaylandEnabled()) {
MOZ_UNUSED(WaylandDisplayGet());
}
#endif
#ifdef MOZ_WIDGET_GTK
nsAppShell::InstallTermSignalHandler();
#endif
}
return 0;
}
#if defined(MOZ_SANDBOX)
void AddSandboxAnnotations() {
CrashReporter::RecordAnnotationU32(
CrashReporter::Annotation::ContentSandboxLevel,
GetEffectiveContentSandboxLevel());
CrashReporter::RecordAnnotationU32(CrashReporter::Annotation::GpuSandboxLevel,
GetEffectiveGpuSandboxLevel());
// Include whether or not this instance is capable of content sandboxing
bool sSandboxCapable = false;
# if defined(XP_WIN)
// All supported Windows versions support some level of content sandboxing
sSandboxCapable = true;
# elif defined(XP_MACOSX)
// All supported OS X versions are capable
sSandboxCapable = true;
# elif defined(XP_LINUX)
sSandboxCapable = SandboxInfo::Get().CanSandboxContent();
# elif defined(__OpenBSD__)
sSandboxCapable = true;
StartOpenBSDSandbox(GeckoProcessType_Default);
# endif
CrashReporter::RecordAnnotationBool(
CrashReporter::Annotation::ContentSandboxCapable, sSandboxCapable);
}
#endif /* MOZ_SANDBOX */
/*
* XRE_mainRun - Command line startup, profile migration, and
* the calling of appStartup->Run().
*/
nsresult XREMain::XRE_mainRun() {
nsresult rv = NS_OK;
NS_ASSERTION(mScopedXPCOM, "Scoped xpcom not initialized.");
#if defined(XP_WIN)
RefPtr<mozilla::DllServices> dllServices(mozilla::DllServices::Get());
dllServices->StartUntrustedModulesProcessor(false);
auto dllServicesDisable =
MakeScopeExit([&dllServices]() { dllServices->DisableFull(); });
mozilla::mscom::InitProfilerMarkers();
#endif // defined(XP_WIN)
// We need the appStartup pointer to span multiple scopes, so we declare
// it here.
nsCOMPtr<nsIAppStartup> appStartup;
// Ditto with the command line.
nsCOMPtr<nsICommandLineRunner> cmdLine;
{
#ifdef XP_MACOSX
// In this scope, create an autorelease pool that will leave scope with
// it just before entering our event loop.
mozilla::MacAutoreleasePool pool;
#endif
rv = mScopedXPCOM->SetWindowCreator(mNativeApp);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
// tell the crash reporter to also send the release channel
nsCOMPtr<nsIPrefService> prefs =
do_GetService("@mozilla.org/preferences-service;1", &rv);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIPrefBranch> defaultPrefBranch;
rv = prefs->GetDefaultBranch(nullptr, getter_AddRefs(defaultPrefBranch));
if (NS_SUCCEEDED(rv)) {
nsAutoCString sval;
rv = defaultPrefBranch->GetCharPref("app.update.channel", sval);
if (NS_SUCCEEDED(rv)) {
CrashReporter::RecordAnnotationNSCString(
CrashReporter::Annotation::ReleaseChannel, sval);
}
}
}
// Needs to be set after xpcom initialization.
bool includeContextHeap = Preferences::GetBool(
"toolkit.crashreporter.include_context_heap", false);
CrashReporter::SetIncludeContextHeap(includeContextHeap);
#if defined(XP_LINUX) && !defined(ANDROID)
PR_CreateThread(PR_USER_THREAD, AnnotateLSBRelease, 0, PR_PRIORITY_LOW,
PR_GLOBAL_THREAD, PR_UNJOINABLE_THREAD, 0);
#endif
if (mStartOffline) {
nsCOMPtr<nsIIOService> io(
do_GetService("@mozilla.org/network/io-service;1"));
NS_ENSURE_TRUE(io, NS_ERROR_FAILURE);
io->SetManageOfflineStatus(false);
io->SetOffline(true);
}
if (!mOriginToForceQUIC.IsEmpty()) {
PR_SetEnv(ToNewCString("MOZ_FORCE_QUIC_ON="_ns + mOriginToForceQUIC));
}
#ifdef XP_WIN
mozilla::DllPrefetchExperimentRegistryInfo prefetchRegInfo;
mozilla::AlteredDllPrefetchMode dllPrefetchMode =
prefetchRegInfo.GetAlteredDllPrefetchMode();
if (!PR_GetEnv("XRE_NO_DLL_READAHEAD") &&
dllPrefetchMode != mozilla::AlteredDllPrefetchMode::NoPrefetch) {
nsCOMPtr<nsIFile> greDir = mDirProvider.GetGREDir();
nsAutoString path;
rv = greDir->GetPath(path);
if (NS_SUCCEEDED(rv)) {
// We use the presence of a path argument inside the thread to determine
// which list of Dlls to use. The old list does not need access to the
// GRE dir, so the path argument is voided.
if (dllPrefetchMode !=
mozilla::AlteredDllPrefetchMode::OptimizedPrefetch) {
path.SetIsVoid(true);
}
NS_DispatchBackgroundTask(
NS_NewRunnableFunction("ReadAheadDlls", [path = std::move(path)] {
ReadAheadDlls(path.IsVoid() ? nullptr : path.get());
}));
}
}
#endif
if (gDoMigration) {
nsCOMPtr<nsIFile> file;
mDirProvider.GetAppDir()->Clone(getter_AddRefs(file));
file->AppendNative("override.ini"_ns);
nsINIParser parser;
nsresult rv = parser.Init(file);
// if override.ini doesn't exist, also check for distribution.ini
if (NS_FAILED(rv)) {
bool persistent;
mDirProvider.GetFile(XRE_APP_DISTRIBUTION_DIR, &persistent,
getter_AddRefs(file));
file->AppendNative("distribution.ini"_ns);
rv = parser.Init(file);
}
if (NS_SUCCEEDED(rv)) {
nsAutoCString buf;
rv = parser.GetString("XRE", "EnableProfileMigrator", buf);
if (NS_SUCCEEDED(rv)) {
if (buf[0] == '0' || buf[0] == 'f' || buf[0] == 'F') {
gDoMigration = false;
}
}
}
}
// We'd like to initialize the JSContext *after* reading the user prefs.
// Unfortunately that's not possible if we have to do profile migration
// because that requires us to execute JS before reading user prefs.
// Restarting the browser after profile migration would fix this. See
bool initializedJSContext = false;
{
// Profile Migration
if (mAppData->flags & NS_XRE_ENABLE_PROFILE_MIGRATOR && gDoMigration) {
gDoMigration = false;
xpc::InitializeJSContext();
initializedJSContext = true;
nsCOMPtr<nsIProfileMigrator> pm(
do_CreateInstance(NS_PROFILEMIGRATOR_CONTRACTID));
if (pm) {
nsAutoCString aKey;
nsAutoCString aName;
if (gDoProfileReset) {
// Automatically migrate from the current application if we just
// reset the profile.
aKey = MOZ_APP_NAME;
gResetOldProfile->GetName(aName);
}
#ifdef XP_MACOSX
// Necessary for migration wizard to be accessible.
InitializeMacApp();
#endif
pm->Migrate(&mDirProvider, aKey, aName);
}
}
if (gDoProfileReset) {
if (!initializedJSContext) {
xpc::InitializeJSContext();
initializedJSContext = true;
}
nsresult backupCreated =
ProfileResetCleanup(mProfileSvc, gResetOldProfile);
if (NS_FAILED(backupCreated)) {
NS_WARNING("Could not cleanup the profile that was reset");
}
}
}
// Initialize user preferences before notifying startup observers so they're
// ready in time for early consumers, such as the component loader.
mDirProvider.InitializeUserPrefs();
// Now that all (user) prefs have been loaded we can initialize the main
// thread's JSContext.
if (!initializedJSContext) {
xpc::InitializeJSContext();
}
// Finally, now that JS has been initialized, we can finish pref loading.
// This needs to happen after JS and XPConnect initialization because
// AutoConfig files require JS execution. Note that this means AutoConfig
// files can't override JS engine start-up prefs.
mDirProvider.FinishInitializingUserPrefs();
// Do a canary load of a JS based module here. This will help us detect
// missing resources during startup and make us react appropriate, that
// is inform the user before exiting with a crash.
{
mozilla::dom::AutoJSAPI jsapi;
MOZ_ALWAYS_TRUE(jsapi.Init(xpc::PrivilegedJunkScope()));
JS::Rooted<JSObject*> mod(jsapi.cx());
// AppConstants.sys.mjs is small, widely used and most likely will
// never go away.
rv = mozJSModuleLoader::Get()->ImportESModule(
jsapi.cx(), "resource://gre/modules/AppConstants.sys.mjs"_ns, &mod);
if (NS_FAILED(rv)) {
return NS_ERROR_OMNIJAR_OR_DIR_MISSING;
}
}
#if defined(MOZ_SANDBOX) && defined(XP_WIN)
// Now that we have preferences and the directory provider, we can
// finish initializing SandboxBroker. This must happen before the GFX
// platform is initialized (which will launch the GPU process), which
// occurs when the "app-startup" category is started up below
//
// After this completes, we are ready to launch sandboxed processes
mozilla::SandboxBroker::GeckoDependentInitialize();
#endif
nsCOMPtr<nsIFile> workingDir;
rv = NS_GetSpecialDirectory(NS_OS_CURRENT_WORKING_DIR,
getter_AddRefs(workingDir));
if (NS_FAILED(rv)) {
// No working dir? This can happen if it gets deleted before we start.
workingDir = nullptr;
}
cmdLine = new nsCommandLine();
rv = cmdLine->Init(gArgc, gArgv, workingDir,
nsICommandLine::STATE_INITIAL_LAUNCH);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
// "app-startup" is the name of both the category and the event
NS_CreateServicesFromCategory("app-startup", cmdLine, "app-startup",
nullptr);
appStartup = components::AppStartup::Service();
NS_ENSURE_TRUE(appStartup, NS_ERROR_FAILURE);
mDirProvider.DoStartup();
#ifdef XP_WIN
// It needs to be called on the main thread because it has to use
// nsObserverService.
EnsureWin32kInitialized();
#endif
// As FilePreferences need the profile directory, we must initialize right
// here.
mozilla::FilePreferences::InitDirectoriesAllowlist();
mozilla::FilePreferences::InitPrefs();
nsCString userAgentLocale;
LocaleService::GetInstance()->GetAppLocaleAsBCP47(userAgentLocale);
CrashReporter::RecordAnnotationNSCString(
CrashReporter::Annotation::useragent_locale, userAgentLocale);
if (!AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownConfirmed)) {
/* Special-case services that need early access to the command
line. */
nsCOMPtr<nsIObserverService> obsService =
mozilla::services::GetObserverService();
if (obsService) {
obsService->NotifyObservers(cmdLine, "command-line-startup", nullptr);
}
}
#ifdef XP_WIN
// Hack to sync up the various environment storages. XUL_APP_FILE is special
// in that it comes from a different CRT (firefox.exe's static-linked copy).
char appFile[MAX_PATH];
if (GetEnvironmentVariableA("XUL_APP_FILE", appFile, sizeof(appFile))) {
SmprintfPointer saved = mozilla::Smprintf("XUL_APP_FILE=%s", appFile);
// We intentionally leak the string here since it is required by
// PR_SetEnv.
PR_SetEnv(saved.release());
}
#endif
mozilla::AppShutdown::SaveEnvVarsForPotentialRestart();
// clear out any environment variables which may have been set
// during the relaunch process now that we know we won't be relaunching.
SaveToEnv("XRE_PROFILE_PATH=");
SaveToEnv("XRE_PROFILE_LOCAL_PATH=");
SaveToEnv("XRE_START_OFFLINE=");
SaveToEnv("XUL_APP_FILE=");
SaveToEnv("XRE_BINARY_PATH=");
SaveToEnv("XRE_RESTARTED_BY_PROFILE_MANAGER=");
if (!AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownConfirmed)) {
#ifdef XP_MACOSX
if (!BackgroundTasks::IsBackgroundTaskMode()) {
rv = appStartup->CreateHiddenWindow();
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
}
#endif
#ifdef XP_WIN
Preferences::RegisterCallbackAndCall(
RegisterApplicationRestartChanged,
PREF_WIN_REGISTER_APPLICATION_RESTART);
SetupAlteredPrefetchPref();
SetupSkeletonUIPrefs();
# if defined(MOZ_LAUNCHER_PROCESS)
SetupLauncherProcessPref();
# endif // defined(MOZ_LAUNCHER_PROCESS)
# if defined(MOZ_DEFAULT_BROWSER_AGENT)
# if defined(MOZ_BACKGROUNDTASKS)
// The backgroundtask profile is not a browsing profile, let alone the new
// default profile, so don't mirror its properties into the registry.
if (!BackgroundTasks::IsBackgroundTaskMode())
# endif // defined(MOZ_BACKGROUNDTASKS)
{
Preferences::RegisterCallbackAndCall(
&OnDefaultAgentTelemetryPrefChanged,
kPrefHealthReportUploadEnabled);
Preferences::RegisterCallbackAndCall(
&OnDefaultAgentTelemetryPrefChanged, kPrefDefaultAgentEnabled);
Preferences::RegisterCallbackAndCall(
&OnDefaultAgentRemoteSettingsPrefChanged,
kPrefServicesSettingsServer);
Preferences::RegisterCallbackAndCall(
&OnSetDefaultBrowserUserChoicePrefChanged,
kPrefSetDefaultBrowserUserChoicePref);
SetDefaultAgentLastRunTime();
}
# endif // defined(MOZ_DEFAULT_BROWSER_AGENT)
#endif
#if defined(MOZ_WIDGET_GTK)
// Clear the environment variables so they won't be inherited by child
// processes and confuse things.
for (const auto& name : kStartupTokenNames) {
g_unsetenv(name.get());
}
#endif
#ifdef XP_MACOSX
InitializeMacApp();
// we re-initialize the command-line service and do appleevents munging
// after we are sure that we're not restarting
cmdLine = new nsCommandLine();
char** tempArgv = static_cast<char**>(malloc(gArgc * sizeof(char*)));
for (int i = 0; i < gArgc; i++) {
tempArgv[i] = strdup(gArgv[i]);
}
CommandLineServiceMac::SetupMacCommandLine(gArgc, tempArgv, false);
rv = cmdLine->Init(gArgc, tempArgv, workingDir,
nsICommandLine::STATE_INITIAL_LAUNCH);
free(tempArgv);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
# ifdef MOZILLA_OFFICIAL
// Check if we're running from a DMG or an app translocated location and
// allow the user to install to the Applications directory.
if (MacRunFromDmgUtils::MaybeInstallAndRelaunch()) {
bool userAllowedQuit = true;
appStartup->Quit(nsIAppStartup::eForceQuit, 0, &userAllowedQuit);
}
# endif
#endif
nsCOMPtr<nsIObserverService> obsService =
mozilla::services::GetObserverService();
if (obsService)
obsService->NotifyObservers(nullptr, "final-ui-startup", nullptr);
(void)appStartup->DoneStartingUp();
CrashReporter::RecordAnnotationBool(
CrashReporter::Annotation::StartupCrash, false);
AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownConfirmed);
}
if (!AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownConfirmed)) {
rv = cmdLine->Run();
NS_ENSURE_SUCCESS_LOG(rv, NS_ERROR_FAILURE);
}
if (!AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownConfirmed)) {
#if defined(MOZ_HAS_REMOTE)
// if we have X remote support, start listening for requests on the
// proxy window.
if (gRemoteService) {
gRemoteService->StartupServer();
gStartupLock = nullptr;
}
#endif
mNativeApp->Enable();
}
// Send Telemetry about Gecko version and buildid
mozilla::glean::gecko::version.Set(nsDependentCString(gAppData->version));
mozilla::glean::gecko::build_id.Set(nsDependentCString(gAppData->buildID));
#if defined(MOZ_SANDBOX) && defined(XP_LINUX)
// If we're on Linux, we now have information about the OS capabilities
// available to us.
SandboxInfo sandboxInfo = SandboxInfo::Get();
Telemetry::Accumulate(Telemetry::SANDBOX_HAS_USER_NAMESPACES,
sandboxInfo.Test(SandboxInfo::kHasUserNamespaces));
CrashReporter::RecordAnnotationU32(
CrashReporter::Annotation::ContentSandboxCapabilities,
sandboxInfo.AsInteger());
#endif /* MOZ_SANDBOX && XP_LINUX */
#if defined(XP_WIN)
LauncherResult<bool> isAdminWithoutUac = IsAdminWithoutUac();
if (isAdminWithoutUac.isOk()) {
glean::os_environment::is_admin_without_uac.Set(
isAdminWithoutUac.unwrap());
}
#endif /* XP_WIN */
#if defined(MOZ_SANDBOX)
AddSandboxAnnotations();
#endif /* MOZ_SANDBOX */
mProfileSvc->CompleteStartup();
}
#ifdef MOZ_BACKGROUNDTASKS
if (BackgroundTasks::IsBackgroundTaskMode()) {
// In background task mode, we don't fire various delayed initialization
// notifications, which in the regular browser is how startup crash tracking
// is marked as finished. Here, getting this far means we don't have a
// startup crash.
rv = appStartup->TrackStartupCrashEnd();
NS_ENSURE_SUCCESS(rv, rv);
// We never open a window, but don't want to exit immediately.
rv = appStartup->EnterLastWindowClosingSurvivalArea();
NS_ENSURE_SUCCESS(rv, rv);
// Avoid some small differences in initialization order across platforms.
nsCOMPtr<nsIPowerManagerService> powerManagerService =
do_GetService(POWERMANAGERSERVICE_CONTRACTID);
nsCOMPtr<nsIStringBundleService> stringBundleService =
do_GetService(NS_STRINGBUNDLE_CONTRACTID);
rv = BackgroundTasks::RunBackgroundTask(cmdLine);
NS_ENSURE_SUCCESS(rv, rv);
}
#endif
{
rv = appStartup->Run();
if (NS_FAILED(rv)) {
NS_ERROR("failed to run appstartup");
gLogConsoleErrors = true;
}
}
return rv;
}
#if defined(MOZ_WIDGET_ANDROID)
static already_AddRefed<nsIFile> GreOmniPath(int argc, char** argv) {
nsresult rv;
const char* path = nullptr;
ArgResult ar = CheckArg(argc, argv, "greomni", &path, CheckArgFlag::None);
if (ar == ARG_BAD) {
PR_fprintf(PR_STDERR,
"Error: argument --greomni requires a path argument\n");
return nullptr;
}
if (!path) return nullptr;
nsCOMPtr<nsIFile> greOmni;
rv = XRE_GetFileFromPath(path, getter_AddRefs(greOmni));
if (NS_FAILED(rv)) {
PR_fprintf(PR_STDERR, "Error: argument --greomni requires a valid path\n");
return nullptr;
}
return greOmni.forget();
}
#endif
/*
* XRE_main - A class based main entry point used by most platforms.
* Note that on OSX, aAppData->xreDirectory will point to
* .app/Contents/Resources.
*/
int XREMain::XRE_main(int argc, char* argv[], const BootstrapConfig& aConfig) {
gArgc = argc;
gArgv = argv;
ScopedLogging log;
mozilla::LogModule::Init(gArgc, gArgv);
#ifndef XP_LINUX
NS_SetCurrentThreadName("MainThread");
#endif
AUTO_BASE_PROFILER_LABEL("XREMain::XRE_main (around Gecko Profiler)", OTHER);
AUTO_PROFILER_INIT;
AUTO_PROFILER_LABEL("XREMain::XRE_main", OTHER);
#ifdef XP_MACOSX
// We call this early because it will kick off a background-thread task
// to register the fonts, and we'd like it to have a chance to complete
// before gfxPlatform initialization actually requires it.
gfxPlatformMac::RegisterSupplementalFonts();
#endif
#ifdef MOZ_WIDGET_ANDROID
// We call the early because we run system font API on a background-thread
gfxAndroidPlatform::InitializeFontAPI();
#endif
#ifdef MOZ_CODE_COVERAGE
CodeCoverageHandler::Init();
#endif
nsresult rv = NS_OK;
if (aConfig.appData) {
mAppData = MakeUnique<XREAppData>(*aConfig.appData);
} else {
MOZ_RELEASE_ASSERT(aConfig.appDataPath);
nsCOMPtr<nsIFile> appini;
rv = XRE_GetFileFromPath(aConfig.appDataPath, getter_AddRefs(appini));
if (NS_FAILED(rv)) {
Output(true, "Error: unrecognized path: %s\n", aConfig.appDataPath);
return 1;
}
mAppData = MakeUnique<XREAppData>();
rv = XRE_ParseAppData(appini, *mAppData);
if (NS_FAILED(rv)) {
Output(true, "Couldn't read application.ini");
return 1;
}
appini->GetParent(getter_AddRefs(mAppData->directory));
}
const char* appRemotingName = getenv("MOZ_APP_REMOTINGNAME");
if (appRemotingName) {
mAppData->remotingName = appRemotingName;
} else if (!mAppData->remotingName) {
mAppData->remotingName = mAppData->name;
}
// used throughout this file
gAppData = mAppData.get();
nsCOMPtr<nsIFile> binFile;
rv = XRE_GetBinaryPath(getter_AddRefs(binFile));
NS_ENSURE_SUCCESS(rv, 1);
rv = binFile->GetPath(gAbsoluteArgv0Path);
NS_ENSURE_SUCCESS(rv, 1);
if (!mAppData->xreDirectory) {
nsCOMPtr<nsIFile> greDir;
#if defined(MOZ_WIDGET_ANDROID)
greDir = GreOmniPath(argc, argv);
if (!greDir) {
return 2;
}
#else
rv = binFile->GetParent(getter_AddRefs(greDir));
if (NS_FAILED(rv)) return 2;
#endif
#ifdef XP_MACOSX
nsCOMPtr<nsIFile> parent;
greDir->GetParent(getter_AddRefs(parent));
greDir = parent.forget();
greDir->AppendNative("Resources"_ns);
#endif
mAppData->xreDirectory = greDir;
}
#if defined(MOZ_WIDGET_ANDROID)
nsCOMPtr<nsIFile> dataDir;
rv = binFile->GetParent(getter_AddRefs(dataDir));
if (NS_FAILED(rv)) return 2;
mAppData->directory = dataDir;
#else
if (aConfig.appData && aConfig.appDataPath) {
mAppData->xreDirectory->Clone(getter_AddRefs(mAppData->directory));
mAppData->directory->AppendNative(nsDependentCString(aConfig.appDataPath));
}
#endif
if (!mAppData->directory) {
mAppData->directory = mAppData->xreDirectory;
}
#if defined(XP_WIN)
# if defined(MOZ_SANDBOX)
mAppData->sandboxBrokerServices = aConfig.sandboxBrokerServices;
# endif // defined(MOZ_SANDBOX)
{
DebugOnly<bool> result = WindowsBCryptInitialization();
MOZ_ASSERT(result);
}
# if defined(_M_IX86) || defined(_M_X64)
{
DebugOnly<bool> result = WindowsMsctfInitialization();
MOZ_ASSERT(result);
}
# endif // _M_IX86 || _M_X64
// Thunderbird, so let's only do that for Firefox.
# ifdef MOZ_BUILD_APP_IS_BROWSER
{
DebugOnly<bool> result = WindowsOleAut32Initialization();
MOZ_ASSERT(result);
}
# endif // MOZ_BUILD_APP_IS_BROWSER
#endif // defined(XP_WIN)
// Once we unset the exception handler, we lose the ability to properly
// detect hangs -- they show up as crashes. We do this as late as possible.
// In particular, after ProcessRuntime is destroyed on Windows.
auto unsetExceptionHandler = MakeScopeExit([&] {
if (mAppData->flags & NS_XRE_ENABLE_CRASH_REPORTER)
return CrashReporter::UnsetExceptionHandler();
return NS_OK;
});
mozilla::AutoIOInterposer ioInterposerGuard;
ioInterposerGuard.Init();
#if defined(XP_WIN)
// We should have already done this when we created the skeleton UI. However,
// there is code in here which needs xul in order to work, like EnsureMTA. It
// should be setup that running it again is safe.
mozilla::mscom::ProcessRuntime msCOMRuntime;
#endif
// init
bool exit = false;
int result = XRE_mainInit(&exit);
if (result != 0 || exit) return result;
// If we exit gracefully, remove the startup crash canary file.
auto cleanup = MakeScopeExit([&]() -> nsresult {
if (mProfLD) {
nsCOMPtr<nsIFile> crashFile;
MOZ_TRY_VAR(crashFile, GetIncompleteStartupFile(mProfLD));
crashFile->Remove(false);
}
return NS_OK;
});
// startup
result = XRE_mainStartup(&exit);
if (result != 0 || exit) return result;
// Start the real application. We use |aInitJSContext = false| because
// XRE_mainRun wants to initialize the JSContext after reading user prefs.
mScopedXPCOM = MakeUnique<ScopedXPCOMStartup>();
rv = mScopedXPCOM->Initialize(/* aInitJSContext = */ false);
if (rv == NS_ERROR_OMNIJAR_CORRUPT) {
if (XRE_IsParentProcess()
#ifdef MOZ_BACKGROUNDTASKS
&& !mozilla::BackgroundTasks::IsBackgroundTaskMode()
#endif
) {
Output(
true,
"The installation seems to be corrupt.\nPlease check your hardware "
"and disk setup\nand/or re-install.\n");
}
MOZ_CRASH("NS_ERROR_OMNIJAR_CORRUPT");
}
NS_ENSURE_SUCCESS(rv, 1);
// run!
rv = XRE_mainRun();
if (rv == NS_ERROR_OMNIJAR_OR_DIR_MISSING) {
if (XRE_IsParentProcess()
#ifdef MOZ_BACKGROUNDTASKS
&& !mozilla::BackgroundTasks::IsBackgroundTaskMode()
#endif
) {
Output(true,
"The installation seems to be incomplete.\nPlease check your "
"hardware and disk setup\nand/or re-install.\n");
}
if (mozilla::IsPackagedBuild()) {
// IsPackagedBuild just looks for omni.ja on disk. If we were able to
// find and open it before but not to load the expected JS module from
// it now, signal corruption.
MOZ_CRASH("NS_ERROR_OMNIJAR_CORRUPT");
}
MOZ_CRASH("NS_ERROR_OMNIJAR_OR_DIR_MISSING");
}
#ifdef MOZ_X11
XRE_CleanupX11ErrorHandler();
#endif
gAbsoluteArgv0Path.Truncate();
#if defined(MOZ_HAS_REMOTE)
// Shut down the remote service. We must do this before calling LaunchChild
// if we're restarting because otherwise the new instance will attempt to
// remote to this instance.
if (gRemoteService) {
gRemoteService->ShutdownServer();
gStartupLock = nullptr;
gRemoteService = nullptr;
}
#endif
mScopedXPCOM = nullptr;
// unlock the profile after ScopedXPCOMStartup object (xpcom)
// has gone out of scope. see bug #386739 for more details
mProfileLock->Unlock();
gProfileLock = nullptr;
gLastAppVersion.Truncate();
gLastAppBuildID.Truncate();
#ifdef MOZ_WIDGET_GTK
// gdk_display_close also calls gdk_display_manager_set_default_display
// appropriately when necessary.
if (!gfxPlatform::IsHeadless()) {
# ifdef MOZ_WAYLAND
WaylandDisplayRelease();
gWaylandProxy = nullptr;
# endif
}
#endif
mozilla::AppShutdown::MaybeDoRestart();
XRE_DeinitCommandLine();
if (NS_FAILED(rv)) {
return 1;
}
return mozilla::AppShutdown::GetExitCode();
}
void XRE_StopLateWriteChecks(void) { mozilla::StopLateWriteChecks(); }
int XRE_main(int argc, char* argv[], const BootstrapConfig& aConfig) {
XREMain main;
int result = main.XRE_main(argc, argv, aConfig);
mozilla::RecordShutdownEndTimeStamp();
#ifdef MOZ_BACKGROUNDTASKS
// This is well after the profile has been unlocked, so it's okay if this does
// delete this background task's temporary profile.
mozilla::BackgroundTasks::Shutdown();
#endif
return result;
}
nsresult XRE_InitCommandLine(int aArgc, char* aArgv[]) {
nsresult rv = NS_OK;
#if defined(XP_WIN)
CommandLine::Init(aArgc, aArgv);
#else
// these leak on error, but that's OK: we'll just exit()
char** canonArgs = new char*[aArgc];
// get the canonical version of the binary's path
nsCOMPtr<nsIFile> binFile;
rv = XRE_GetBinaryPath(getter_AddRefs(binFile));
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
nsAutoCString canonBinPath;
rv = binFile->GetNativePath(canonBinPath);
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
canonArgs[0] = strdup(canonBinPath.get());
for (int i = 1; i < aArgc; ++i) {
if (aArgv[i]) {
canonArgs[i] = strdup(aArgv[i]);
}
}
NS_ASSERTION(!CommandLine::IsInitialized(), "Bad news!");
CommandLine::Init(aArgc, canonArgs);
for (int i = 0; i < aArgc; ++i) free(canonArgs[i]);
delete[] canonArgs;
#endif
#if defined(MOZ_WIDGET_ANDROID)
// gAppData is non-null iff this is the parent process. Otherwise,
// the `-greomni`/`-appomni` flags are cross-platform and handled in
// ContentProcess::Init.
if (gAppData) {
nsCOMPtr<nsIFile> greOmni = gAppData->xreDirectory;
if (!greOmni) {
return NS_ERROR_FAILURE;
}
mozilla::Omnijar::Init(greOmni, greOmni);
MOZ_RELEASE_ASSERT(IsPackagedBuild(), "Android builds are always packaged");
}
#endif
return rv;
}
nsresult XRE_DeinitCommandLine() {
nsresult rv = NS_OK;
CommandLine::Terminate();
return rv;
}
GeckoProcessType XRE_GetProcessType() { return GetGeckoProcessType(); }
const char* XRE_GetProcessTypeString() {
return XRE_GeckoProcessTypeToString(XRE_GetProcessType());
}
GeckoChildID XRE_GetChildID() { return GetGeckoChildID(); }
bool XRE_IsE10sParentProcess() {
#ifdef MOZ_WIDGET_ANDROID
return XRE_IsParentProcess() && BrowserTabsRemoteAutostart() &&
mozilla::jni::IsAvailable();
#else
return XRE_IsParentProcess() && BrowserTabsRemoteAutostart();
#endif
}
#define GECKO_PROCESS_TYPE(enum_value, enum_name, string_name, proc_typename, \
process_bin_type, procinfo_typename, \
webidl_typename, allcaps_name) \
bool XRE_Is##proc_typename##Process() { \
return XRE_GetProcessType() == GeckoProcessType_##enum_name; \
}
#include "mozilla/GeckoProcessTypes.h"
#undef GECKO_PROCESS_TYPE
bool XRE_UseNativeEventProcessing() {
switch (XRE_GetProcessType()) {
#if defined(XP_MACOSX) || defined(XP_WIN)
case GeckoProcessType_RDD:
case GeckoProcessType_Socket:
return false;
case GeckoProcessType_Utility: {
# if defined(XP_WIN)
auto upc = mozilla::ipc::UtilityProcessChild::Get();
MOZ_ASSERT(upc);
using SboxKind = mozilla::ipc::SandboxingKind;
// These processes are used as external hosts for accessing Windows
// APIs which (may) require a Windows native event loop.
return upc->mSandbox == SboxKind::WINDOWS_UTILS ||
upc->mSandbox == SboxKind::WINDOWS_FILE_DIALOG;
# else
return false;
# endif // defined(XP_WIN)
}
#endif // defined(XP_MACOSX) || defined(XP_WIN)
case GeckoProcessType_GMPlugin:
return mozilla::gmp::GMPProcessChild::UseNativeEventProcessing();
case GeckoProcessType_Content:
return StaticPrefs::dom_ipc_useNativeEventProcessing_content();
default:
return true;
}
}
namespace mozilla {
uint32_t GetMaxWebProcessCount() {
// multiOptOut is in int to allow us to run multiple experiments without
// introducing multiple prefs a la the autostart.N prefs.
if (Preferences::GetInt("dom.ipc.multiOptOut", 0) >=
nsIXULRuntime::E10S_MULTI_EXPERIMENT) {
return 1;
}
const char* optInPref = "dom.ipc.processCount";
uint32_t optInPrefValue = Preferences::GetInt(optInPref, 1);
return std::max(1u, optInPrefValue);
}
const char* PlatformBuildID() { return gToolkitBuildID; }
} // namespace mozilla
void SetupErrorHandling(const char* progname) {
#ifdef XP_WIN
/* On Windows XPSP3 and Windows Vista if DEP is configured off-by-default
we still want DEP protection: enable it explicitly and programmatically.
This function is not available on WinXPSP2 so we dynamically load it.
*/
HMODULE kernel32 = GetModuleHandleW(L"kernel32.dll");
SetProcessDEPPolicyFunc _SetProcessDEPPolicy =
(SetProcessDEPPolicyFunc)GetProcAddress(kernel32, "SetProcessDEPPolicy");
if (_SetProcessDEPPolicy) _SetProcessDEPPolicy(PROCESS_DEP_ENABLE);
#endif
#ifdef XP_WIN
// Suppress the "DLL Foo could not be found" dialog, such that if dependent
// libraries (such as GDI+) are not preset, we gracefully fail to load those
// XPCOM components, instead of being ungraceful.
UINT realMode = SetErrorMode(0);
realMode |= SEM_FAILCRITICALERRORS;
// If XRE_NO_WINDOWS_CRASH_DIALOG is set, suppress displaying the "This
// application has crashed" dialog box. This is mainly useful for
// automated testing environments, e.g. tinderbox, where there's no need
// for a dozen of the dialog boxes to litter the console
if (getenv("XRE_NO_WINDOWS_CRASH_DIALOG"))
realMode |= SEM_NOGPFAULTERRORBOX | SEM_NOOPENFILEERRORBOX;
SetErrorMode(realMode);
#endif
InstallSignalHandlers(progname);
// Unbuffer stdout, needed for tinderbox tests.
setbuf(stdout, 0);
}
static bool gRunSelfAsContentProc = false;
void XRE_EnableSameExecutableForContentProc() {
if (!PR_GetEnv("MOZ_SEPARATE_CHILD_PROCESS")) {
gRunSelfAsContentProc = true;
}
}
mozilla::BinPathType XRE_GetChildProcBinPathType(
GeckoProcessType aProcessType) {
MOZ_ASSERT(aProcessType != GeckoProcessType_Default);
if (!gRunSelfAsContentProc) {
return BinPathType::PluginContainer;
}
#ifdef XP_WIN
// On Windows, plugin-container may or may not be used depending on
// the process type (e.g., actual plugins vs. content processes)
switch (aProcessType) {
# define GECKO_PROCESS_TYPE(enum_value, enum_name, string_name, \
proc_typename, process_bin_type, \
procinfo_typename, webidl_typename, allcaps_name) \
case GeckoProcessType_##enum_name: \
return BinPathType::process_bin_type;
# include "mozilla/GeckoProcessTypes.h"
# undef GECKO_PROCESS_TYPE
default:
return BinPathType::PluginContainer;
}
#else
// On (non-macOS) Unix, plugin-container isn't used (except in cases
// like xpcshell that are handled by the gRunSelfAsContentProc check
// above). It isn't necessary the way it is on other platforms, and
// it interferes with using the fork server.
return BinPathType::Self;
#endif
}
// From mozglue/static/rust/lib.rs
extern "C" void install_rust_hooks();
struct InstallRustHooks {
InstallRustHooks() { install_rust_hooks(); }
};
MOZ_RUNINIT InstallRustHooks sInstallRustHooks;
#ifdef MOZ_ASAN_REPORTER
void setASanReporterPath(nsIFile* aDir) {
nsCOMPtr<nsIFile> dir;
aDir->Clone(getter_AddRefs(dir));
dir->Append(u"asan"_ns);
nsresult rv = dir->Create(nsIFile::DIRECTORY_TYPE, 0700);
if (NS_WARN_IF(NS_FAILED(rv) && rv != NS_ERROR_FILE_ALREADY_EXISTS)) {
MOZ_CRASH("[ASan Reporter] Unable to create crash directory.");
}
dir->Append(u"ff_asan_log"_ns);
# ifdef XP_WIN
nsAutoString nspathW;
rv = dir->GetPath(nspathW);
NS_ConvertUTF16toUTF8 nspath(nspathW);
# else
nsAutoCString nspath;
rv = dir->GetNativePath(nspath);
# endif
if (NS_FAILED(rv)) {
MOZ_CRASH("[ASan Reporter] Unable to get native path for crash directory.");
}
__sanitizer_set_report_path(nspath.get());
}
#endif