зеркало из https://github.com/mozilla/gecko-dev.git
1001 строка
30 KiB
C++
1001 строка
30 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <stdlib.h>
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#include <stdio.h>
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#include "nsUpdateDriver.h"
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#include "nsXULAppAPI.h"
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#include "nsAppRunner.h"
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#include "nsIWritablePropertyBag.h"
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#include "nsIFile.h"
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#include "nsVariant.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "prproces.h"
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#include "mozilla/Logging.h"
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#include "prenv.h"
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#include "nsVersionComparator.h"
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#include "nsDirectoryServiceDefs.h"
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#include "nsThreadUtils.h"
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#include "nsIXULAppInfo.h"
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#include "mozilla/Preferences.h"
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#include "nsPrintfCString.h"
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#include "mozilla/DebugOnly.h"
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#include "mozilla/Printf.h"
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#ifdef XP_MACOSX
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#include "nsILocalFileMac.h"
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#include "nsCommandLineServiceMac.h"
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#include "MacLaunchHelper.h"
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#include "updaterfileutils_osx.h"
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#include "mozilla/Monitor.h"
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#endif
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#if defined(XP_WIN)
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# include <direct.h>
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# include <process.h>
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# include <windows.h>
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# include <shlwapi.h>
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# define getcwd(path, size) _getcwd(path, size)
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# define getpid() GetCurrentProcessId()
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#elif defined(XP_UNIX)
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# include <unistd.h>
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# include <sys/wait.h>
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#endif
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using namespace mozilla;
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static LazyLogModule sUpdateLog("updatedriver");
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#define LOG(args) MOZ_LOG(sUpdateLog, mozilla::LogLevel::Debug, args)
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#ifdef XP_WIN
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#define UPDATER_BIN "updater.exe"
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#elif XP_MACOSX
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#define UPDATER_BIN "org.mozilla.updater"
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#else
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#define UPDATER_BIN "updater"
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#endif
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#define UPDATER_INI "updater.ini"
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#ifdef XP_MACOSX
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#define UPDATER_APP "updater.app"
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#endif
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#if defined(XP_UNIX) && !defined(XP_MACOSX)
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#define UPDATER_PNG "updater.png"
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#endif
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#ifdef XP_MACOSX
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static void
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UpdateDriverSetupMacCommandLine(int& argc, char**& argv, bool restart)
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{
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if (NS_IsMainThread()) {
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CommandLineServiceMac::SetupMacCommandLine(argc, argv, restart);
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return;
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}
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// Bug 1335916: SetupMacCommandLine calls a CoreFoundation function that
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// asserts that it was called from the main thread, so if we are not the main
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// thread, we have to dispatch that call to there. But we also have to get the
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// result from it, so we can't just dispatch and return, we have to wait
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// until the dispatched operation actually completes. So we also set up a
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// monitor to signal us when that happens, and block until then.
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Monitor monitor("nsUpdateDriver SetupMacCommandLine");
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nsresult rv = NS_DispatchToMainThread(
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NS_NewRunnableFunction("UpdateDriverSetupMacCommandLine",
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[&argc, &argv, restart, &monitor]() -> void
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{
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CommandLineServiceMac::SetupMacCommandLine(argc, argv, restart);
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MonitorAutoLock(monitor).Notify();
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}));
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if (NS_FAILED(rv)) {
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LOG(("Update driver error dispatching SetupMacCommandLine to main thread: %d\n", rv));
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return;
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}
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// The length of this wait is arbitrary, but should be long enough that having
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// it expire means something is seriously wrong.
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rv = MonitorAutoLock(monitor).Wait(PR_SecondsToInterval(60));
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if (NS_FAILED(rv)) {
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LOG(("Update driver timed out waiting for SetupMacCommandLine: %d\n", rv));
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}
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}
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#endif
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static nsresult
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GetCurrentWorkingDir(char *buf, size_t size)
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{
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// Cannot use NS_GetSpecialDirectory because XPCOM is not yet initialized.
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// This code is duplicated from xpcom/io/SpecialSystemDirectory.cpp:
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#if defined(XP_WIN)
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wchar_t wpath[MAX_PATH];
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if (!_wgetcwd(wpath, size))
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return NS_ERROR_FAILURE;
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NS_ConvertUTF16toUTF8 path(wpath);
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strncpy(buf, path.get(), size);
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#else
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if(!getcwd(buf, size))
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return NS_ERROR_FAILURE;
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#endif
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return NS_OK;
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}
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/**
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* Get the path to the installation directory. For Mac OS X this will be the
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* bundle directory.
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*
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* @param appDir the application directory file object
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* @param installDirPath the path to the installation directory
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*/
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static nsresult
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GetInstallDirPath(nsIFile *appDir, nsACString& installDirPath)
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{
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nsresult rv;
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#ifdef XP_MACOSX
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nsCOMPtr<nsIFile> parentDir1, parentDir2;
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rv = appDir->GetParent(getter_AddRefs(parentDir1));
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if (NS_FAILED(rv)) {
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return rv;
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}
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rv = parentDir1->GetParent(getter_AddRefs(parentDir2));
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if (NS_FAILED(rv)) {
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return rv;
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}
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rv = parentDir2->GetNativePath(installDirPath);
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#elif XP_WIN
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nsAutoString installDirPathW;
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rv = appDir->GetPath(installDirPathW);
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if (NS_FAILED(rv)) {
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return rv;
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}
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installDirPath = NS_ConvertUTF16toUTF8(installDirPathW);
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#else
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rv = appDir->GetNativePath(installDirPath);
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#endif
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if (NS_FAILED(rv)) {
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return rv;
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}
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return NS_OK;
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}
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#if defined(XP_MACOSX)
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// This is a copy of OS X's XRE_GetBinaryPath from nsAppRunner.cpp with the
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// gBinaryPath check removed so that the updater can reload the stub executable
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// instead of xulrunner-bin. See bug 349737.
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static nsresult
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GetXULRunnerStubPath(const char* argv0, nsIFile* *aResult)
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{
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// Works even if we're not bundled.
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CFBundleRef appBundle = ::CFBundleGetMainBundle();
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if (!appBundle)
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return NS_ERROR_FAILURE;
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CFURLRef bundleURL = ::CFBundleCopyExecutableURL(appBundle);
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if (!bundleURL)
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return NS_ERROR_FAILURE;
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nsCOMPtr<nsILocalFileMac> lfm;
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nsresult rv = NS_NewLocalFileWithCFURL(bundleURL, true, getter_AddRefs(lfm));
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::CFRelease(bundleURL);
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if (NS_FAILED(rv))
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return rv;
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lfm.forget(aResult);
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return NS_OK;
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}
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#endif /* XP_MACOSX */
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static bool
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GetFile(nsIFile* dir, const nsACString& name, nsCOMPtr<nsIFile>& result)
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{
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nsresult rv;
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nsCOMPtr<nsIFile> file;
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rv = dir->Clone(getter_AddRefs(file));
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if (NS_FAILED(rv))
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return false;
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rv = file->AppendNative(name);
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if (NS_FAILED(rv))
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return false;
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result = do_QueryInterface(file, &rv);
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return NS_SUCCEEDED(rv);
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}
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static bool
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GetStatusFile(nsIFile *dir, nsCOMPtr<nsIFile> &result)
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{
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return GetFile(dir, NS_LITERAL_CSTRING("update.status"), result);
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}
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/**
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* Get the contents of the update.status file.
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*
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* @param statusFile the status file object.
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* @param buf the buffer holding the file contents
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*
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* @return true if successful, false otherwise.
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*/
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template <size_t Size>
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static bool
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GetStatusFileContents(nsIFile *statusFile, char (&buf)[Size])
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{
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static_assert(Size > 16, "Buffer needs to be large enough to hold the known status codes");
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PRFileDesc *fd = nullptr;
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nsresult rv = statusFile->OpenNSPRFileDesc(PR_RDONLY, 0660, &fd);
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if (NS_FAILED(rv))
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return false;
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const int32_t n = PR_Read(fd, buf, Size);
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PR_Close(fd);
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return (n >= 0);
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}
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typedef enum {
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eNoUpdateAction,
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ePendingUpdate,
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ePendingService,
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ePendingElevate,
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eAppliedUpdate,
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eAppliedService,
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} UpdateStatus;
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/**
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* Returns a value indicating what needs to be done in order to handle an update.
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*
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* @param dir the directory in which we should look for an update.status file.
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* @param statusFile the update.status file found in the directory.
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*
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* @return the update action to be performed.
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*/
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static UpdateStatus
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GetUpdateStatus(nsIFile* dir, nsCOMPtr<nsIFile> &statusFile)
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{
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if (GetStatusFile(dir, statusFile)) {
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char buf[32];
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if (GetStatusFileContents(statusFile, buf)) {
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const char kPending[] = "pending";
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const char kPendingService[] = "pending-service";
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const char kPendingElevate[] = "pending-elevate";
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const char kApplied[] = "applied";
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const char kAppliedService[] = "applied-service";
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if (!strncmp(buf, kPendingElevate, sizeof(kPendingElevate) - 1)) {
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return ePendingElevate;
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}
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if (!strncmp(buf, kPendingService, sizeof(kPendingService) - 1)) {
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return ePendingService;
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}
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if (!strncmp(buf, kPending, sizeof(kPending) - 1)) {
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return ePendingUpdate;
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}
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if (!strncmp(buf, kAppliedService, sizeof(kAppliedService) - 1)) {
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return eAppliedService;
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}
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if (!strncmp(buf, kApplied, sizeof(kApplied) - 1)) {
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return eAppliedUpdate;
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}
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}
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}
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return eNoUpdateAction;
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}
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static bool
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GetVersionFile(nsIFile *dir, nsCOMPtr<nsIFile> &result)
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{
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return GetFile(dir, NS_LITERAL_CSTRING("update.version"), result);
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}
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// Compares the current application version with the update's application
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// version.
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static bool
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IsOlderVersion(nsIFile *versionFile, const char *appVersion)
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{
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PRFileDesc *fd = nullptr;
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nsresult rv = versionFile->OpenNSPRFileDesc(PR_RDONLY, 0660, &fd);
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if (NS_FAILED(rv))
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return true;
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char buf[32];
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const int32_t n = PR_Read(fd, buf, sizeof(buf));
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PR_Close(fd);
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if (n < 0)
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return false;
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// Trim off the trailing newline
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if (buf[n - 1] == '\n')
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buf[n - 1] = '\0';
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// If the update xml doesn't provide the application version the file will
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// contain the string "null" and it is assumed that the update is not older.
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const char kNull[] = "null";
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if (strncmp(buf, kNull, sizeof(kNull) - 1) == 0)
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return false;
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if (mozilla::Version(appVersion) > buf)
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return true;
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return false;
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}
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static bool
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CopyFileIntoUpdateDir(nsIFile *parentDir, const nsACString& leaf, nsIFile *updateDir)
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{
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nsCOMPtr<nsIFile> file;
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// Make sure there is not an existing file in the target location.
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nsresult rv = updateDir->Clone(getter_AddRefs(file));
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if (NS_FAILED(rv))
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return false;
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rv = file->AppendNative(leaf);
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if (NS_FAILED(rv))
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return false;
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file->Remove(true);
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// Now, copy into the target location.
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rv = parentDir->Clone(getter_AddRefs(file));
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if (NS_FAILED(rv))
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return false;
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rv = file->AppendNative(leaf);
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if (NS_FAILED(rv))
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return false;
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rv = file->CopyToNative(updateDir, EmptyCString());
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if (NS_FAILED(rv))
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return false;
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return true;
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}
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static bool
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CopyUpdaterIntoUpdateDir(nsIFile *greDir, nsIFile *appDir, nsIFile *updateDir,
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nsCOMPtr<nsIFile> &updater)
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{
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// Copy the updater application from the GRE and the updater ini from the app.
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#if defined(XP_MACOSX)
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if (!CopyFileIntoUpdateDir(appDir, NS_LITERAL_CSTRING(UPDATER_APP), updateDir))
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return false;
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CopyFileIntoUpdateDir(greDir, NS_LITERAL_CSTRING(UPDATER_INI), updateDir);
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#else
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if (!CopyFileIntoUpdateDir(greDir, NS_LITERAL_CSTRING(UPDATER_BIN), updateDir))
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return false;
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CopyFileIntoUpdateDir(appDir, NS_LITERAL_CSTRING(UPDATER_INI), updateDir);
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#endif
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#if defined(XP_UNIX) && !defined(XP_MACOSX) && !defined(ANDROID)
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nsCOMPtr<nsIFile> iconDir;
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appDir->Clone(getter_AddRefs(iconDir));
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iconDir->AppendNative(NS_LITERAL_CSTRING("icons"));
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if (!CopyFileIntoUpdateDir(iconDir, NS_LITERAL_CSTRING(UPDATER_PNG), updateDir))
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return false;
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#endif
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// Finally, return the location of the updater binary.
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nsresult rv = updateDir->Clone(getter_AddRefs(updater));
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if (NS_FAILED(rv))
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return false;
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#if defined(XP_MACOSX)
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rv = updater->AppendNative(NS_LITERAL_CSTRING(UPDATER_APP));
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nsresult tmp = updater->AppendNative(NS_LITERAL_CSTRING("Contents"));
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if (NS_FAILED(tmp)) {
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rv = tmp;
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}
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tmp = updater->AppendNative(NS_LITERAL_CSTRING("MacOS"));
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if (NS_FAILED(tmp) || NS_FAILED(rv))
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return false;
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#endif
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rv = updater->AppendNative(NS_LITERAL_CSTRING(UPDATER_BIN));
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return NS_SUCCEEDED(rv);
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}
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/**
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* Appends the specified path to the library path.
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* This is used so that updater can find libmozsqlite3.so and other shared libs.
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*
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* @param pathToAppend A new library path to prepend to LD_LIBRARY_PATH
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*/
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#if defined(MOZ_VERIFY_MAR_SIGNATURE) && !defined(XP_WIN) && !defined(XP_MACOSX)
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#include "prprf.h"
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#define PATH_SEPARATOR ":"
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#define LD_LIBRARY_PATH_ENVVAR_NAME "LD_LIBRARY_PATH"
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static void
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AppendToLibPath(const char *pathToAppend)
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{
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char *pathValue = getenv(LD_LIBRARY_PATH_ENVVAR_NAME);
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if (nullptr == pathValue || '\0' == *pathValue) {
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// Leak the string because that is required by PR_SetEnv.
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char *s = Smprintf("%s=%s", LD_LIBRARY_PATH_ENVVAR_NAME, pathToAppend).release();
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PR_SetEnv(s);
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} else if (!strstr(pathValue, pathToAppend)) {
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// Leak the string because that is required by PR_SetEnv.
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char *s = Smprintf("%s=%s" PATH_SEPARATOR "%s",
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LD_LIBRARY_PATH_ENVVAR_NAME, pathToAppend, pathValue).release();
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PR_SetEnv(s);
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}
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}
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#endif
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/**
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* Applies, switches, or stages an update.
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*
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* @param greDir the GRE directory
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* @param updateDir the update root directory
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* @param appDir the application directory
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* @param appArgc the number of args passed to the application
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* @param appArgv the args passed to the application
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* (used for restarting the application when necessary)
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* @param restart true when a restart is necessary.
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* @param isStaged true when the update has already been staged
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* @param outpid (out) parameter holding the handle to the updater application
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* when staging updates
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*/
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static void
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ApplyUpdate(nsIFile *greDir, nsIFile *updateDir, nsIFile *appDir, int appArgc,
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char **appArgv, bool restart, bool isStaged, ProcessType *outpid)
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{
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// The following determines the update operation to perform.
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// 1. When restart is false the update will be staged.
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// 2. When restart is true and isStaged is false the update will apply the mar
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// file to the installation directory.
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// 3. When restart is true and isStaged is true the update will switch the
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// staged update with the installation directory.
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nsresult rv;
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nsCOMPtr<nsIFile> updater;
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nsAutoCString updaterPath;
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nsAutoCString updateDirPath;
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#if defined(XP_WIN)
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// Get an nsIFile reference for the updater in the installation dir.
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if (!GetFile(greDir, NS_LITERAL_CSTRING(UPDATER_BIN), updater)) {
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return;
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}
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// Get the path to the updater.
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nsAutoString updaterPathW;
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rv = updater->GetPath(updaterPathW);
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if (NS_FAILED(rv)) {
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return;
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}
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updaterPath = NS_ConvertUTF16toUTF8(updaterPathW);
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// Get the path to the update dir.
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nsAutoString updateDirPathW;
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rv = updateDir->GetPath(updateDirPathW);
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if (NS_FAILED(rv)) {
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return;
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}
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updateDirPath = NS_ConvertUTF16toUTF8(updateDirPathW);
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#else
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if (isStaged) {
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nsCOMPtr<nsIFile> mozUpdaterDir;
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rv = updateDir->Clone(getter_AddRefs(mozUpdaterDir));
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if (NS_FAILED(rv)) {
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LOG(("failed cloning update dir\n"));
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return;
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}
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// Create a new directory named MozUpdater in the updates/0 directory to copy
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// the updater files to that will be used to replace the installation with the
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// staged application that has been updated. Note that we don't check for
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// directory creation errors since the call to CopyUpdaterIntoUpdateDir will
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// fail if the creation of the directory fails. A unique directory is created
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// in MozUpdater in case a previous attempt locked the directory or files.
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mozUpdaterDir->Append(NS_LITERAL_STRING("MozUpdater"));
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mozUpdaterDir->Append(NS_LITERAL_STRING("bgupdate"));
|
|
rv = mozUpdaterDir->CreateUnique(nsIFile::DIRECTORY_TYPE, 0755);
|
|
if (NS_FAILED(rv)) {
|
|
LOG(("failed creating unique dir\n"));
|
|
return;
|
|
}
|
|
|
|
// Copy the updater and files needed to update into the MozUpdater/bgupdate
|
|
// directory in the update dir and get an nsIFile reference to the copied
|
|
// updater.
|
|
if (!CopyUpdaterIntoUpdateDir(greDir, appDir, mozUpdaterDir, updater)) {
|
|
LOG(("failed copying updater\n"));
|
|
return;
|
|
}
|
|
} else {
|
|
// Copy the updater and files needed to update into the update directory and
|
|
// get an nsIFile reference to the copied updater.
|
|
if (!CopyUpdaterIntoUpdateDir(greDir, appDir, updateDir, updater)) {
|
|
LOG(("failed copying updater\n"));
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Get the path to the updater that will be used.
|
|
rv = updater->GetNativePath(updaterPath);
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
|
|
// Get the path to the update dir.
|
|
rv = updateDir->GetNativePath(updateDirPath);
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
// appFilePath and workingDirPath are only used when the application will be
|
|
// restarted.
|
|
nsAutoCString appFilePath;
|
|
char workingDirPath[MAXPATHLEN];
|
|
if (restart) {
|
|
// Get the path to the current working directory.
|
|
rv = GetCurrentWorkingDir(workingDirPath, sizeof(workingDirPath));
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
|
|
// Get the application file path used by the updater to restart the
|
|
// application after the update has finished.
|
|
nsCOMPtr<nsIFile> appFile;
|
|
#if defined(XP_MACOSX)
|
|
// On OS X we need to pass the location of the xulrunner-stub executable
|
|
// rather than xulrunner-bin. See bug 349737.
|
|
GetXULRunnerStubPath(appArgv[0], getter_AddRefs(appFile));
|
|
#else
|
|
XRE_GetBinaryPath(appArgv[0], getter_AddRefs(appFile));
|
|
#endif
|
|
if (!appFile) {
|
|
return;
|
|
}
|
|
|
|
#if defined(XP_WIN)
|
|
nsAutoString appFilePathW;
|
|
rv = appFile->GetPath(appFilePathW);
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
appFilePath = NS_ConvertUTF16toUTF8(appFilePathW);
|
|
#else
|
|
rv = appFile->GetNativePath(appFilePath);
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// Get the installation directory path.
|
|
nsAutoCString installDirPath;
|
|
rv = GetInstallDirPath(appDir, installDirPath);
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
|
|
nsAutoCString applyToDirPath;
|
|
nsCOMPtr<nsIFile> updatedDir;
|
|
if (restart && !isStaged) {
|
|
// The install directory is the same as the apply to directory.
|
|
applyToDirPath.Assign(installDirPath);
|
|
} else {
|
|
// Get the directory where the update is staged or will be staged.
|
|
#if defined(XP_MACOSX)
|
|
if (!GetFile(updateDir, NS_LITERAL_CSTRING("Updated.app"), updatedDir)) {
|
|
#else
|
|
if (!GetFile(appDir, NS_LITERAL_CSTRING("updated"), updatedDir)) {
|
|
#endif
|
|
return;
|
|
}
|
|
#if defined(XP_WIN)
|
|
nsAutoString applyToDirPathW;
|
|
rv = updatedDir->GetPath(applyToDirPathW);
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
applyToDirPath = NS_ConvertUTF16toUTF8(applyToDirPathW);
|
|
#else
|
|
rv = updatedDir->GetNativePath(applyToDirPath);
|
|
#endif
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
|
|
if (restart && isStaged) {
|
|
// When the update should already be staged make sure that the updated
|
|
// directory exists.
|
|
bool updatedDirExists = false;
|
|
if (NS_FAILED(updatedDir->Exists(&updatedDirExists)) || !updatedDirExists) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// On platforms where we are not calling execv, we may need to make the
|
|
// updater executable wait for the calling process to exit. Otherwise, the
|
|
// updater may have trouble modifying our executable image (because it might
|
|
// still be in use). This is accomplished by passing our PID to the updater so
|
|
// that it can wait for us to exit. This is not perfect as there is a race
|
|
// condition that could bite us. It's possible that the calling process could
|
|
// exit before the updater waits on the specified PID, and in the meantime a
|
|
// new process with the same PID could be created. This situation is unlikely,
|
|
// however, given the way most operating systems recycle PIDs. We'll take our
|
|
// chances ;-)
|
|
// Construct the PID argument for this process to pass to the updater.
|
|
nsAutoCString pid;
|
|
if (restart) {
|
|
#if defined(XP_UNIX) & !defined(XP_MACOSX)
|
|
// When execv is used for an update that requires a restart 0 is passed
|
|
// which is ignored by the updater.
|
|
pid.AssignASCII("0");
|
|
#else
|
|
pid.AppendInt((int32_t) getpid());
|
|
#endif
|
|
if (isStaged) {
|
|
// Append a special token to the PID in order to inform the updater that
|
|
// it should replace install with the updated directory.
|
|
pid.AppendLiteral("/replace");
|
|
}
|
|
} else {
|
|
// Signal the updater application that it should stage the update.
|
|
pid.AssignASCII("-1");
|
|
}
|
|
|
|
int argc = 5;
|
|
if (restart) {
|
|
argc = appArgc + 6;
|
|
}
|
|
char **argv = new char*[argc + 1];
|
|
if (!argv) {
|
|
return;
|
|
}
|
|
argv[0] = (char*) updaterPath.get();
|
|
argv[1] = (char*) updateDirPath.get();
|
|
argv[2] = (char*) installDirPath.get();
|
|
argv[3] = (char*) applyToDirPath.get();
|
|
argv[4] = (char*) pid.get();
|
|
if (restart && appArgc) {
|
|
argv[5] = workingDirPath;
|
|
argv[6] = (char*) appFilePath.get();
|
|
for (int i = 1; i < appArgc; ++i) {
|
|
argv[6 + i] = appArgv[i];
|
|
}
|
|
argv[argc] = nullptr;
|
|
} else {
|
|
argv[5] = nullptr;
|
|
}
|
|
|
|
if (restart && gSafeMode) {
|
|
PR_SetEnv("MOZ_SAFE_MODE_RESTART=1");
|
|
}
|
|
|
|
#if defined(MOZ_VERIFY_MAR_SIGNATURE) && !defined(XP_WIN) && !defined(XP_MACOSX)
|
|
AppendToLibPath(installDirPath.get());
|
|
#endif
|
|
|
|
LOG(("spawning updater process [%s]\n", updaterPath.get()));
|
|
|
|
#if defined(XP_UNIX) && !defined(XP_MACOSX)
|
|
// We use execv to spawn the updater process on all UNIX systems except Mac OSX
|
|
// since it is known to cause problems on the Mac. Windows has execv, but it
|
|
// is a faked implementation that doesn't really replace the current process.
|
|
// Instead it spawns a new process, so we gain nothing from using execv on
|
|
// Windows.
|
|
if (restart) {
|
|
exit(execv(updaterPath.get(), argv));
|
|
}
|
|
*outpid = fork();
|
|
if (*outpid == -1) {
|
|
return;
|
|
} else if (*outpid == 0) {
|
|
exit(execv(updaterPath.get(), argv));
|
|
}
|
|
#elif defined(XP_WIN)
|
|
if (isStaged) {
|
|
// Launch the updater to replace the installation with the staged updated.
|
|
if (!WinLaunchChild(updaterPathW.get(), argc, argv)) {
|
|
return;
|
|
}
|
|
} else {
|
|
// Launch the updater to either stage or apply an update.
|
|
if (!WinLaunchChild(updaterPathW.get(), argc, argv, nullptr, outpid)) {
|
|
return;
|
|
}
|
|
}
|
|
#elif defined(XP_MACOSX)
|
|
UpdateDriverSetupMacCommandLine(argc, argv, restart);
|
|
// We need to detect whether elevation is required for this update. This can
|
|
// occur when an admin user installs the application, but another admin
|
|
// user attempts to update (see bug 394984).
|
|
if (restart && !IsRecursivelyWritable(installDirPath.get())) {
|
|
if (!LaunchElevatedUpdate(argc, argv, outpid)) {
|
|
LOG(("Failed to launch elevated update!"));
|
|
exit(1);
|
|
}
|
|
exit(0);
|
|
}
|
|
|
|
if (isStaged) {
|
|
// Launch the updater to replace the installation with the staged updated.
|
|
LaunchChildMac(argc, argv);
|
|
} else {
|
|
// Launch the updater to either stage or apply an update.
|
|
LaunchChildMac(argc, argv, outpid);
|
|
}
|
|
if (restart) {
|
|
exit(0);
|
|
}
|
|
#else
|
|
if (isStaged) {
|
|
// Launch the updater to replace the installation with the staged updated.
|
|
PR_CreateProcessDetached(updaterPath.get(), argv, nullptr, nullptr);
|
|
} else {
|
|
// Launch the updater to either stage or apply an update.
|
|
*outpid = PR_CreateProcess(updaterPath.get(), argv, nullptr, nullptr);
|
|
}
|
|
#endif
|
|
#if !defined(USE_EXECV)
|
|
if (restart) {
|
|
exit(0);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Wait briefly to see if a process terminates, then return true if it has.
|
|
*/
|
|
static bool
|
|
ProcessHasTerminated(ProcessType pt)
|
|
{
|
|
#if defined(XP_WIN)
|
|
if (WaitForSingleObject(pt, 1000)) {
|
|
return false;
|
|
}
|
|
CloseHandle(pt);
|
|
return true;
|
|
#elif defined(XP_MACOSX)
|
|
// We're waiting for the process to terminate in LaunchChildMac.
|
|
return true;
|
|
#elif defined(XP_UNIX)
|
|
int exitStatus;
|
|
pid_t exited = waitpid(pt, &exitStatus, WNOHANG);
|
|
if (exited == 0) {
|
|
// Process is still running.
|
|
sleep(1);
|
|
return false;
|
|
}
|
|
if (exited == -1) {
|
|
LOG(("Error while checking if the updater process is finished"));
|
|
// This shouldn't happen, but if it does, the updater process is lost to us,
|
|
// so the best we can do is pretend that it's exited.
|
|
return true;
|
|
}
|
|
// If we get here, the process has exited; make sure it exited normally.
|
|
if (WIFEXITED(exitStatus) && (WEXITSTATUS(exitStatus) != 0)) {
|
|
LOG(("Error while running the updater process, check update.log"));
|
|
}
|
|
return true;
|
|
#else
|
|
// No way to have a non-blocking implementation on these platforms,
|
|
// because we're using NSPR and it only provides a blocking wait.
|
|
int32_t exitCode;
|
|
PR_WaitProcess(pt, &exitCode);
|
|
if (exitCode != 0) {
|
|
LOG(("Error while running the updater process, check update.log"));
|
|
}
|
|
return true;
|
|
#endif
|
|
}
|
|
|
|
nsresult
|
|
ProcessUpdates(nsIFile *greDir, nsIFile *appDir, nsIFile *updRootDir,
|
|
int argc, char **argv, const char *appVersion,
|
|
bool restart, ProcessType *pid)
|
|
{
|
|
nsresult rv;
|
|
|
|
nsCOMPtr<nsIFile> updatesDir;
|
|
rv = updRootDir->Clone(getter_AddRefs(updatesDir));
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
rv = updatesDir->AppendNative(NS_LITERAL_CSTRING("updates"));
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
rv = updatesDir->AppendNative(NS_LITERAL_CSTRING("0"));
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
// Return early since there isn't a valid update when the update application
|
|
// version file doesn't exist or if the update's application version is less
|
|
// than the current application version. The cleanup of the update will happen
|
|
// during post update processing in nsUpdateService.js.
|
|
nsCOMPtr<nsIFile> versionFile;
|
|
if (!GetVersionFile(updatesDir, versionFile) ||
|
|
IsOlderVersion(versionFile, appVersion)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIFile> statusFile;
|
|
UpdateStatus status = GetUpdateStatus(updatesDir, statusFile);
|
|
switch (status) {
|
|
case ePendingElevate: {
|
|
if (NS_IsMainThread()) {
|
|
// Only do this if we're called from the main thread.
|
|
nsCOMPtr<nsIUpdatePrompt> up =
|
|
do_GetService("@mozilla.org/updates/update-prompt;1");
|
|
if (up) {
|
|
up->ShowUpdateElevationRequired();
|
|
}
|
|
break;
|
|
}
|
|
// Intentional fallthrough to ePendingUpdate and ePendingService.
|
|
MOZ_FALLTHROUGH;
|
|
}
|
|
case ePendingUpdate:
|
|
case ePendingService: {
|
|
ApplyUpdate(greDir, updatesDir, appDir, argc, argv, restart, false, pid);
|
|
break;
|
|
}
|
|
case eAppliedUpdate:
|
|
case eAppliedService:
|
|
// An update was staged and needs to be switched so the updated application
|
|
// is used.
|
|
ApplyUpdate(greDir, updatesDir, appDir, argc, argv, restart, true, pid);
|
|
break;
|
|
case eNoUpdateAction:
|
|
// We don't need to do any special processing here, we'll just continue to
|
|
// startup the application.
|
|
break;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_IMPL_ISUPPORTS(nsUpdateProcessor, nsIUpdateProcessor)
|
|
|
|
nsUpdateProcessor::nsUpdateProcessor()
|
|
: mUpdaterPID(0)
|
|
{
|
|
}
|
|
|
|
nsUpdateProcessor::~nsUpdateProcessor()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsUpdateProcessor::ProcessUpdate(nsIUpdate* aUpdate)
|
|
{
|
|
nsresult rv;
|
|
|
|
nsCOMPtr<nsIProperties> ds =
|
|
do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIFile> exeFile;
|
|
rv = ds->Get(XRE_EXECUTABLE_FILE, NS_GET_IID(nsIFile),
|
|
getter_AddRefs(exeFile));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIFile> appDir;
|
|
rv = exeFile->GetParent(getter_AddRefs(appDir));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIFile> greDir;
|
|
rv = ds->Get(NS_GRE_DIR, NS_GET_IID(nsIFile), getter_AddRefs(greDir));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIFile> updRoot;
|
|
rv = ds->Get(XRE_UPDATE_ROOT_DIR, NS_GET_IID(nsIFile),
|
|
getter_AddRefs(updRoot));
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "Can't get the UpdRootD dir");
|
|
|
|
// XRE_UPDATE_ROOT_DIR should not fail but if it does fallback to the
|
|
// application directory just to be safe.
|
|
if (NS_FAILED(rv)) {
|
|
rv = appDir->Clone(getter_AddRefs(updRoot));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
nsCOMPtr<nsIXULAppInfo> appInfo =
|
|
do_GetService("@mozilla.org/xre/app-info;1", &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsAutoCString appVersion;
|
|
rv = appInfo->GetVersion(appVersion);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Copy the parameters to the StagedUpdateInfo structure shared with the
|
|
// watcher thread.
|
|
mInfo.mGREDir = greDir;
|
|
mInfo.mAppDir = appDir;
|
|
mInfo.mUpdateRoot = updRoot;
|
|
mInfo.mArgc = 0;
|
|
mInfo.mArgv = nullptr;
|
|
mInfo.mAppVersion = appVersion;
|
|
|
|
MOZ_ASSERT(NS_IsMainThread(), "not main thread");
|
|
nsCOMPtr<nsIRunnable> r =
|
|
NewRunnableMethod("nsUpdateProcessor::StartStagedUpdate",
|
|
this,
|
|
&nsUpdateProcessor::StartStagedUpdate);
|
|
return NS_NewNamedThread("Update Watcher", getter_AddRefs(mProcessWatcher),
|
|
r);
|
|
}
|
|
|
|
|
|
|
|
void
|
|
nsUpdateProcessor::StartStagedUpdate()
|
|
{
|
|
MOZ_ASSERT(!NS_IsMainThread(), "main thread");
|
|
|
|
nsresult rv = ProcessUpdates(mInfo.mGREDir,
|
|
mInfo.mAppDir,
|
|
mInfo.mUpdateRoot,
|
|
mInfo.mArgc,
|
|
mInfo.mArgv,
|
|
mInfo.mAppVersion.get(),
|
|
false,
|
|
&mUpdaterPID);
|
|
NS_ENSURE_SUCCESS_VOID(rv);
|
|
|
|
if (mUpdaterPID) {
|
|
// Track the state of the updater process while it is staging an update.
|
|
rv = NS_DispatchToCurrentThread(
|
|
NewRunnableMethod("nsUpdateProcessor::WaitForProcess",
|
|
this,
|
|
&nsUpdateProcessor::WaitForProcess));
|
|
NS_ENSURE_SUCCESS_VOID(rv);
|
|
} else {
|
|
// Failed to launch the updater process for some reason.
|
|
// We need to shutdown the current thread as there isn't anything more for
|
|
// us to do...
|
|
rv = NS_DispatchToMainThread(
|
|
NewRunnableMethod("nsUpdateProcessor::ShutdownWatcherThread",
|
|
this,
|
|
&nsUpdateProcessor::ShutdownWatcherThread));
|
|
NS_ENSURE_SUCCESS_VOID(rv);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsUpdateProcessor::ShutdownWatcherThread()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread(), "not main thread");
|
|
mProcessWatcher->Shutdown();
|
|
mProcessWatcher = nullptr;
|
|
}
|
|
|
|
void
|
|
nsUpdateProcessor::WaitForProcess()
|
|
{
|
|
MOZ_ASSERT(!NS_IsMainThread(), "main thread");
|
|
if (ProcessHasTerminated(mUpdaterPID)) {
|
|
NS_DispatchToMainThread(NewRunnableMethod(
|
|
"nsUpdateProcessor::UpdateDone", this, &nsUpdateProcessor::UpdateDone));
|
|
} else {
|
|
NS_DispatchToCurrentThread(
|
|
NewRunnableMethod("nsUpdateProcessor::WaitForProcess",
|
|
this,
|
|
&nsUpdateProcessor::WaitForProcess));
|
|
}
|
|
}
|
|
|
|
void
|
|
nsUpdateProcessor::UpdateDone()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread(), "not main thread");
|
|
|
|
nsCOMPtr<nsIUpdateManager> um =
|
|
do_GetService("@mozilla.org/updates/update-manager;1");
|
|
if (um) {
|
|
um->RefreshUpdateStatus();
|
|
}
|
|
|
|
ShutdownWatcherThread();
|
|
}
|