From f9cab004186edb425a9b88ad649726605080a17c Mon Sep 17 00:00:00 2001 From: Thomas Groman Date: Mon, 20 Apr 2020 20:49:37 -0700 Subject: move browser to webbrowser/ --- webbrowser/app/nsBrowserApp.cpp | 393 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 393 insertions(+) create mode 100644 webbrowser/app/nsBrowserApp.cpp (limited to 'webbrowser/app/nsBrowserApp.cpp') diff --git a/webbrowser/app/nsBrowserApp.cpp b/webbrowser/app/nsBrowserApp.cpp new file mode 100644 index 0000000..8b06135 --- /dev/null +++ b/webbrowser/app/nsBrowserApp.cpp @@ -0,0 +1,393 @@ +/* -*- 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 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsXULAppAPI.h" +#include "mozilla/AppData.h" +#include "application.ini.h" +#include "nsXPCOMGlue.h" +#if defined(XP_WIN) +#include +#include +#elif defined(XP_UNIX) +#include +#include +#endif + +#include +#include +#include + +#include "nsCOMPtr.h" +#include "nsIFile.h" +#include "nsStringGlue.h" + +#ifdef XP_WIN +#define XRE_WANT_ENVIRON +#define strcasecmp _stricmp +#endif +#include "BinaryPath.h" + +#include "nsXPCOMPrivate.h" // for MAXPATHLEN and XPCOM_DLL + +#include "mozilla/Sprintf.h" +#include "mozilla/Telemetry.h" +#include "mozilla/WindowsDllBlocklist.h" + +#if !defined(MOZ_WIDGET_COCOA) && !defined(MOZ_WIDGET_ANDROID) +#define MOZ_BROWSER_CAN_BE_CONTENTPROC +#include "../../ipc/contentproc/plugin-container.cpp" +#endif + +using namespace mozilla; + +#ifdef XP_MACOSX +#define kOSXResourcesFolder "Resources" +#endif +#define kDesktopFolder "browser" + +static void Output(const char *fmt, ... ) +{ + va_list ap; + va_start(ap, fmt); + +#ifndef XP_WIN + vfprintf(stderr, fmt, ap); +#else + char msg[2048]; + vsnprintf_s(msg, _countof(msg), _TRUNCATE, fmt, ap); + + wchar_t wide_msg[2048]; + MultiByteToWideChar(CP_UTF8, + 0, + msg, + -1, + wide_msg, + _countof(wide_msg)); +#if MOZ_WINCONSOLE + fwprintf_s(stderr, wide_msg); +#else + // Linking user32 at load-time interferes with the DLL blocklist (bug 932100). + // This is a rare codepath, so we can load user32 at run-time instead. + HMODULE user32 = LoadLibraryW(L"user32.dll"); + if (user32) { + decltype(MessageBoxW)* messageBoxW = + (decltype(MessageBoxW)*) GetProcAddress(user32, "MessageBoxW"); + if (messageBoxW) { + messageBoxW(nullptr, wide_msg, L"Pale Moon", MB_OK + | MB_ICONERROR + | MB_SETFOREGROUND); + } + FreeLibrary(user32); + } +#endif +#endif + + va_end(ap); +} + +/** + * Return true if |arg| matches the given argument name. + */ +static bool IsArg(const char* arg, const char* s) +{ + if (*arg == '-') + { + if (*++arg == '-') + ++arg; + return !strcasecmp(arg, s); + } + +#if defined(XP_WIN) + if (*arg == '/') + return !strcasecmp(++arg, s); +#endif + + return false; +} + +XRE_GetFileFromPathType XRE_GetFileFromPath; +XRE_CreateAppDataType XRE_CreateAppData; +XRE_FreeAppDataType XRE_FreeAppData; +XRE_TelemetryAccumulateType XRE_TelemetryAccumulate; +XRE_StartupTimelineRecordType XRE_StartupTimelineRecord; +XRE_mainType XRE_main; +XRE_StopLateWriteChecksType XRE_StopLateWriteChecks; +XRE_XPCShellMainType XRE_XPCShellMain; +XRE_GetProcessTypeType XRE_GetProcessType; +XRE_SetProcessTypeType XRE_SetProcessType; +XRE_InitChildProcessType XRE_InitChildProcess; +XRE_EnableSameExecutableForContentProcType XRE_EnableSameExecutableForContentProc; +#ifdef LIBFUZZER +XRE_LibFuzzerSetMainType XRE_LibFuzzerSetMain; +XRE_LibFuzzerGetFuncsType XRE_LibFuzzerGetFuncs; +#endif + +static const nsDynamicFunctionLoad kXULFuncs[] = { + { "XRE_GetFileFromPath", (NSFuncPtr*) &XRE_GetFileFromPath }, + { "XRE_CreateAppData", (NSFuncPtr*) &XRE_CreateAppData }, + { "XRE_FreeAppData", (NSFuncPtr*) &XRE_FreeAppData }, + { "XRE_TelemetryAccumulate", (NSFuncPtr*) &XRE_TelemetryAccumulate }, + { "XRE_StartupTimelineRecord", (NSFuncPtr*) &XRE_StartupTimelineRecord }, + { "XRE_main", (NSFuncPtr*) &XRE_main }, + { "XRE_StopLateWriteChecks", (NSFuncPtr*) &XRE_StopLateWriteChecks }, + { "XRE_XPCShellMain", (NSFuncPtr*) &XRE_XPCShellMain }, + { "XRE_GetProcessType", (NSFuncPtr*) &XRE_GetProcessType }, + { "XRE_SetProcessType", (NSFuncPtr*) &XRE_SetProcessType }, + { "XRE_InitChildProcess", (NSFuncPtr*) &XRE_InitChildProcess }, + { "XRE_EnableSameExecutableForContentProc", (NSFuncPtr*) &XRE_EnableSameExecutableForContentProc }, +#ifdef LIBFUZZER + { "XRE_LibFuzzerSetMain", (NSFuncPtr*) &XRE_LibFuzzerSetMain }, + { "XRE_LibFuzzerGetFuncs", (NSFuncPtr*) &XRE_LibFuzzerGetFuncs }, +#endif + { nullptr, nullptr } +}; + +#ifdef LIBFUZZER +int libfuzzer_main(int argc, char **argv); + +/* This wrapper is used by the libFuzzer main to call into libxul */ + +void libFuzzerGetFuncs(const char* moduleName, LibFuzzerInitFunc* initFunc, + LibFuzzerTestingFunc* testingFunc) { + return XRE_LibFuzzerGetFuncs(moduleName, initFunc, testingFunc); +} +#endif + +static int do_main(int argc, char* argv[], char* envp[], nsIFile *xreDirectory) +{ + nsCOMPtr appini; + nsresult rv; + uint32_t mainFlags = 0; + + // Allow palemoon.exe to launch XULRunner apps via -app + // Note that -app must be the *first* argument. + const char *appDataFile = getenv("XUL_APP_FILE"); + if (appDataFile && *appDataFile) { + rv = XRE_GetFileFromPath(appDataFile, getter_AddRefs(appini)); + if (NS_FAILED(rv)) { + Output("Invalid path found: '%s'", appDataFile); + return 255; + } + } + else if (argc > 1 && IsArg(argv[1], "app")) { + if (argc == 2) { + Output("Incorrect number of arguments passed to -app"); + return 255; + } + + rv = XRE_GetFileFromPath(argv[2], getter_AddRefs(appini)); + if (NS_FAILED(rv)) { + Output("application.ini path not recognized: '%s'", argv[2]); + return 255; + } + + char appEnv[MAXPATHLEN]; + SprintfLiteral(appEnv, "XUL_APP_FILE=%s", argv[2]); + if (putenv(strdup(appEnv))) { + Output("Couldn't set %s.\n", appEnv); + return 255; + } + argv[2] = argv[0]; + argv += 2; + argc -= 2; + } else if (argc > 1 && IsArg(argv[1], "xpcshell")) { + for (int i = 1; i < argc; i++) { + argv[i] = argv[i + 1]; + } + + return XRE_XPCShellMain(--argc, argv, envp); + } + + if (appini) { + nsXREAppData *appData; + rv = XRE_CreateAppData(appini, &appData); + if (NS_FAILED(rv)) { + Output("Couldn't read application.ini"); + return 255; + } +#if defined(HAS_DLL_BLOCKLIST) + // The dll blocklist operates in the exe vs. xullib. Pass a flag to + // xullib so automated tests can check the result once the browser + // is up and running. + appData->flags |= + DllBlocklist_CheckStatus() ? NS_XRE_DLL_BLOCKLIST_ENABLED : 0; +#endif + // xreDirectory already has a refcount from NS_NewLocalFile + appData->xreDirectory = xreDirectory; + int result = XRE_main(argc, argv, appData, mainFlags); + XRE_FreeAppData(appData); + return result; + } + + ScopedAppData appData(&sAppData); + nsCOMPtr exeFile; + rv = mozilla::BinaryPath::GetFile(argv[0], getter_AddRefs(exeFile)); + if (NS_FAILED(rv)) { + Output("Couldn't find the application directory.\n"); + return 255; + } + + nsCOMPtr greDir; + exeFile->GetParent(getter_AddRefs(greDir)); +#ifdef XP_MACOSX + greDir->SetNativeLeafName(NS_LITERAL_CSTRING(kOSXResourcesFolder)); +#endif + nsCOMPtr appSubdir; + greDir->Clone(getter_AddRefs(appSubdir)); + appSubdir->Append(NS_LITERAL_STRING(kDesktopFolder)); + + SetStrongPtr(appData.directory, static_cast(appSubdir.get())); + // xreDirectory already has a refcount from NS_NewLocalFile + appData.xreDirectory = xreDirectory; + +#if defined(HAS_DLL_BLOCKLIST) + appData.flags |= + DllBlocklist_CheckStatus() ? NS_XRE_DLL_BLOCKLIST_ENABLED : 0; +#endif + +#ifdef LIBFUZZER + if (getenv("LIBFUZZER")) + XRE_LibFuzzerSetMain(argc, argv, libfuzzer_main); +#endif + + return XRE_main(argc, argv, &appData, mainFlags); +} + +static bool +FileExists(const char *path) +{ +#ifdef XP_WIN + wchar_t wideDir[MAX_PATH]; + MultiByteToWideChar(CP_UTF8, 0, path, -1, wideDir, MAX_PATH); + DWORD fileAttrs = GetFileAttributesW(wideDir); + return fileAttrs != INVALID_FILE_ATTRIBUTES; +#else + return access(path, R_OK) == 0; +#endif +} + +static nsresult +InitXPCOMGlue(const char *argv0, nsIFile **xreDirectory) +{ + char exePath[MAXPATHLEN]; + + nsresult rv = mozilla::BinaryPath::Get(argv0, exePath); + if (NS_FAILED(rv)) { + Output("Couldn't find the application directory.\n"); + return rv; + } + + char *lastSlash = strrchr(exePath, XPCOM_FILE_PATH_SEPARATOR[0]); + if (!lastSlash || + (size_t(lastSlash - exePath) > MAXPATHLEN - sizeof(XPCOM_DLL) - 1)) + return NS_ERROR_FAILURE; + + strcpy(lastSlash + 1, XPCOM_DLL); + + if (!FileExists(exePath)) { + Output("Could not find the Mozilla runtime.\n"); + return NS_ERROR_FAILURE; + } + + // We do this because of data in bug 771745 + XPCOMGlueEnablePreload(); + + rv = XPCOMGlueStartup(exePath); + if (NS_FAILED(rv)) { + Output("Couldn't load XPCOM.\n"); + return rv; + } + + rv = XPCOMGlueLoadXULFunctions(kXULFuncs); + if (NS_FAILED(rv)) { + Output("Couldn't load XRE functions.\n"); + return rv; + } + + // This will set this thread as the main thread. + NS_LogInit(); + + if (xreDirectory) { + // chop XPCOM_DLL off exePath + *lastSlash = '\0'; +#ifdef XP_MACOSX + lastSlash = strrchr(exePath, XPCOM_FILE_PATH_SEPARATOR[0]); + strcpy(lastSlash + 1, kOSXResourcesFolder); +#endif +#ifdef XP_WIN + rv = NS_NewLocalFile(NS_ConvertUTF8toUTF16(exePath), false, + xreDirectory); +#else + rv = NS_NewNativeLocalFile(nsDependentCString(exePath), false, + xreDirectory); +#endif + } + + return rv; +} + +int main(int argc, char* argv[], char* envp[]) +{ + mozilla::TimeStamp start = mozilla::TimeStamp::Now(); + +#ifdef HAS_DLL_BLOCKLIST + DllBlocklist_Initialize(); + +#ifdef DEBUG + // In order to be effective against AppInit DLLs, the blocklist must be + // initialized before user32.dll is loaded into the process (bug 932100). + if (GetModuleHandleA("user32.dll")) { + fprintf(stderr, "DLL blocklist was unable to intercept AppInit DLLs.\n"); + } +#endif +#endif + +#ifdef MOZ_BROWSER_CAN_BE_CONTENTPROC + // We are launching as a content process, delegate to the appropriate + // main + if (argc > 1 && IsArg(argv[1], "contentproc")) { + nsresult rv = InitXPCOMGlue(argv[0], nullptr); + if (NS_FAILED(rv)) { + return 255; + } + + int result = content_process_main(argc, argv); + + // InitXPCOMGlue calls NS_LogInit, so we need to balance it here. + NS_LogTerm(); + + return result; + } +#endif + + + nsIFile *xreDirectory; + + nsresult rv = InitXPCOMGlue(argv[0], &xreDirectory); + if (NS_FAILED(rv)) { + return 255; + } + + XRE_StartupTimelineRecord(mozilla::StartupTimeline::START, start); + +#ifdef MOZ_BROWSER_CAN_BE_CONTENTPROC + XRE_EnableSameExecutableForContentProc(); +#endif + + int result = do_main(argc, argv, envp, xreDirectory); + + NS_LogTerm(); + +#ifdef XP_MACOSX + // Allow writes again. While we would like to catch writes from static + // destructors to allow early exits to use _exit, we know that there is + // at least one such write that we don't control (see bug 826029). For + // now we enable writes again and early exits will have to use exit instead + // of _exit. + XRE_StopLateWriteChecks(); +#endif + + return result; +} -- cgit v1.2.3