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authorMatt A. Tobin <email@mattatobin.com>2018-02-02 03:32:58 -0500
committerMatt A. Tobin <email@mattatobin.com>2018-02-02 03:32:58 -0500
commite72ef92b5bdc43cd2584198e2e54e951b70299e8 (patch)
tree01ceb4a897c33eca9e7ccf2bc3aefbe530169fe5 /application/basilisk/app/nsBrowserApp.cpp
parent0d19b77d3eaa5b8d837bf52c19759e68e42a1c4c (diff)
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Add Basilisk
Diffstat (limited to 'application/basilisk/app/nsBrowserApp.cpp')
-rw-r--r--application/basilisk/app/nsBrowserApp.cpp321
1 files changed, 321 insertions, 0 deletions
diff --git a/application/basilisk/app/nsBrowserApp.cpp b/application/basilisk/app/nsBrowserApp.cpp
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+++ b/application/basilisk/app/nsBrowserApp.cpp
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+/* -*- 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/XREAppData.h"
+#include "application.ini.h"
+#include "mozilla/Bootstrap.h"
+#if defined(XP_WIN)
+#include <windows.h>
+#include <stdlib.h>
+#elif defined(XP_UNIX)
+#include <sys/resource.h>
+#include <unistd.h>
+#endif
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <time.h>
+
+#include "nsCOMPtr.h"
+#include "nsIFile.h"
+#include "nsStringGlue.h"
+
+#ifdef XP_WIN
+#ifdef MOZ_ASAN
+// ASAN requires firefox.exe to be built with -MD, and it's OK if we don't
+// support Windows XP SP2 in ASAN builds.
+#define XRE_DONT_SUPPORT_XPSP2
+#endif
+#define XRE_WANT_ENVIRON
+#define strcasecmp _stricmp
+#ifdef MOZ_SANDBOX
+#include "mozilla/sandboxing/SandboxInitialization.h"
+#endif
+#endif
+#include "BinaryPath.h"
+
+#include "nsXPCOMPrivate.h" // for MAXPATHLEN and XPCOM_DLL
+
+#include "mozilla/Sprintf.h"
+#include "mozilla/Telemetry.h"
+#include "mozilla/WindowsDllBlocklist.h"
+
+#ifdef LIBFUZZER
+#include "FuzzerDefs.h"
+#endif
+
+#ifdef MOZ_LINUX_32_SSE2_STARTUP_ERROR
+#include <cpuid.h>
+#include "mozilla/Unused.h"
+
+static bool
+IsSSE2Available()
+{
+ // The rest of the app has been compiled to assume that SSE2 is present
+ // unconditionally, so we can't use the normal copy of SSE.cpp here.
+ // Since SSE.cpp caches the results and we need them only transiently,
+ // instead of #including SSE.cpp here, let's just inline the specific check
+ // that's needed.
+ unsigned int level = 1u;
+ unsigned int eax, ebx, ecx, edx;
+ unsigned int bits = (1u<<26);
+ unsigned int max = __get_cpuid_max(0, nullptr);
+ if (level > max) {
+ return false;
+ }
+ __cpuid_count(level, 0, eax, ebx, ecx, edx);
+ return (edx & bits) == bits;
+}
+
+static const char sSSE2Message[] =
+ "This browser version requires a processor with the SSE2 instruction "
+ "set extension.\nYou may be able to obtain a version that does not "
+ "require SSE2 from your Linux distribution.\n";
+
+__attribute__((constructor))
+static void
+SSE2Check()
+{
+ if (IsSSE2Available()) {
+ return;
+ }
+ // Using write() in order to avoid jemalloc-based buffering. Ignoring return
+ // values, since there isn't much we could do on failure and there is no
+ // point in trying to recover from errors.
+ MOZ_UNUSED(write(STDERR_FILENO,
+ sSSE2Message,
+ MOZ_ARRAY_LENGTH(sSSE2Message) - 1));
+ // _exit() instead of exit() to avoid running the usual "at exit" code.
+ _exit(255);
+}
+#endif
+
+#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"Basilisk", 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;
+}
+
+Bootstrap::UniquePtr gBootstrap;
+
+static int do_main(int argc, char* argv[], char* envp[])
+{
+ // Allow firefox.exe to launch XULRunner apps via -app <application.ini>
+ // Note that -app must be the *first* argument.
+ const char *appDataFile = getenv("XUL_APP_FILE");
+ if ((!appDataFile || !*appDataFile) &&
+ (argc > 1 && IsArg(argv[1], "app"))) {
+ if (argc == 2) {
+ Output("Incorrect number of arguments passed to -app");
+ return 255;
+ }
+ appDataFile = argv[2];
+
+ 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];
+ }
+
+ XREShellData shellData;
+#if defined(XP_WIN) && defined(MOZ_SANDBOX)
+ shellData.sandboxBrokerServices =
+ sandboxing::GetInitializedBrokerServices();
+#endif
+
+ return gBootstrap->XRE_XPCShellMain(--argc, argv, envp, &shellData);
+ }
+
+ BootstrapConfig config;
+
+ if (appDataFile && *appDataFile) {
+ config.appData = nullptr;
+ config.appDataPath = appDataFile;
+ } else {
+ // no -app flag so we use the compiled-in app data
+ config.appData = &sAppData;
+ config.appDataPath = kDesktopFolder;
+ }
+
+#if defined(XP_WIN) && defined(MOZ_SANDBOX)
+ sandbox::BrokerServices* brokerServices =
+ sandboxing::GetInitializedBrokerServices();
+#if defined(MOZ_CONTENT_SANDBOX)
+ if (!brokerServices) {
+ Output("Couldn't initialize the broker services.\n");
+ return 255;
+ }
+#endif
+ config.sandboxBrokerServices = brokerServices;
+#endif
+
+#ifdef LIBFUZZER
+ if (getenv("LIBFUZZER"))
+ gBootstrap->XRE_LibFuzzerSetDriver(fuzzer::FuzzerDriver);
+#endif
+
+ return gBootstrap->XRE_main(argc, argv, config);
+}
+
+static nsresult
+InitXPCOMGlue(const char *argv0)
+{
+ UniqueFreePtr<char> exePath = BinaryPath::Get(argv0);
+ if (!exePath) {
+ Output("Couldn't find the application directory.\n");
+ return NS_ERROR_FAILURE;
+ }
+
+ gBootstrap = mozilla::GetBootstrap(exePath.get());
+ if (!gBootstrap) {
+ Output("Couldn't load XPCOM.\n");
+ return NS_ERROR_FAILURE;
+ }
+
+ // This will set this thread as the main thread.
+ gBootstrap->NS_LogInit();
+
+ return NS_OK;
+}
+
+int main(int argc, char* argv[], char* envp[])
+{
+ mozilla::TimeStamp start = mozilla::TimeStamp::Now();
+
+#ifdef HAS_DLL_BLOCKLIST
+ DllBlocklist_Initialize();
+#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")) {
+#if defined(XP_WIN) && defined(MOZ_SANDBOX)
+ // We need to initialize the sandbox TargetServices before InitXPCOMGlue
+ // because we might need the sandbox broker to give access to some files.
+ if (IsSandboxedProcess() && !sandboxing::GetInitializedTargetServices()) {
+ Output("Failed to initialize the sandbox target services.");
+ return 255;
+ }
+#endif
+
+ nsresult rv = InitXPCOMGlue(argv[0]);
+ if (NS_FAILED(rv)) {
+ return 255;
+ }
+
+ int result = content_process_main(gBootstrap.get(), argc, argv);
+
+ // InitXPCOMGlue calls NS_LogInit, so we need to balance it here.
+ gBootstrap->NS_LogTerm();
+
+ return result;
+ }
+#endif
+
+
+ nsresult rv = InitXPCOMGlue(argv[0]);
+ if (NS_FAILED(rv)) {
+ return 255;
+ }
+
+ gBootstrap->XRE_StartupTimelineRecord(mozilla::StartupTimeline::START, start);
+
+#ifdef MOZ_BROWSER_CAN_BE_CONTENTPROC
+ gBootstrap->XRE_EnableSameExecutableForContentProc();
+#endif
+
+ int result = do_main(argc, argv, envp);
+
+ gBootstrap->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.
+ gBootstrap->XRE_StopLateWriteChecks();
+#endif
+
+ gBootstrap.reset();
+
+ return result;
+}