зеркало из https://github.com/mozilla/gecko-dev.git
266 строки
8.2 KiB
C++
266 строки
8.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 et :
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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 "GMPProcessParent.h"
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#include "GMPUtils.h"
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#include "nsIFile.h"
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#include "nsIRunnable.h"
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#if defined(XP_WIN) && defined(MOZ_SANDBOX)
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# include "WinUtils.h"
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#endif
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#include "GMPLog.h"
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#include "base/string_util.h"
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#include "base/process_util.h"
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#include <string>
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#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
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# include "mozilla/dom/ContentChild.h"
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# include "mozilla/Sandbox.h"
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# include "mozilla/SandboxSettings.h"
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# include "nsMacUtilsImpl.h"
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#endif
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using std::string;
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using std::vector;
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using mozilla::gmp::GMPProcessParent;
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using mozilla::ipc::GeckoChildProcessHost;
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static const int kInvalidFd = -1;
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namespace mozilla {
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namespace gmp {
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#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
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bool GMPProcessParent::sLaunchWithMacSandbox = true;
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bool GMPProcessParent::sMacSandboxGMPLogging = false;
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# if defined(DEBUG)
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bool GMPProcessParent::sIsMainThreadInitDone = false;
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# endif
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#endif
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#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
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/* static */
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void GMPProcessParent::InitStaticMainThread() {
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// The GMPProcessParent constructor is called off the
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// main thread. Do main thread initialization here.
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MOZ_ASSERT(NS_IsMainThread());
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sLaunchWithMacSandbox =
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Preferences::GetBool("security.sandbox.gmp.mac.earlyinit", true) &&
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(getenv("MOZ_DISABLE_GMP_SANDBOX") == nullptr);
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sMacSandboxGMPLogging =
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Preferences::GetBool("security.sandbox.logging.enabled") ||
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PR_GetEnv("MOZ_SANDBOX_GMP_LOGGING") || PR_GetEnv("MOZ_SANDBOX_LOGGING");
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GMP_LOG("GMPProcessParent::InitStaticMainThread: earlyinit=%s, logging=%s",
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sLaunchWithMacSandbox ? "true" : "false",
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sMacSandboxGMPLogging ? "true" : "false");
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# if defined(DEBUG)
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sIsMainThreadInitDone = true;
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# endif
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}
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#endif
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GMPProcessParent::GMPProcessParent(const std::string& aGMPPath)
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: GeckoChildProcessHost(GeckoProcessType_GMPlugin),
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mGMPPath(aGMPPath)
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#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
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,
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mRequiresWindowServer(false)
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#endif
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{
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MOZ_COUNT_CTOR(GMPProcessParent);
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#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
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MOZ_ASSERT(sIsMainThreadInitDone == true);
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#endif
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}
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GMPProcessParent::~GMPProcessParent() { MOZ_COUNT_DTOR(GMPProcessParent); }
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bool GMPProcessParent::Launch(int32_t aTimeoutMs) {
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vector<string> args;
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#if defined(XP_WIN) && defined(MOZ_SANDBOX)
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std::wstring wGMPPath = UTF8ToWide(mGMPPath.c_str());
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// The sandbox doesn't allow file system rules where the paths contain
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// symbolic links or junction points. Sometimes the Users folder has been
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// moved to another drive using a junction point, so allow for this specific
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// case. See bug 1236680 for details.
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if (!widget::WinUtils::ResolveJunctionPointsAndSymLinks(wGMPPath)) {
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GMP_LOG("ResolveJunctionPointsAndSymLinks failed for GMP path=%S",
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wGMPPath.c_str());
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NS_WARNING("ResolveJunctionPointsAndSymLinks failed for GMP path.");
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return false;
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}
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GMP_LOG("GMPProcessParent::Launch() resolved path to %S", wGMPPath.c_str());
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// If the GMP path is a network path that is not mapped to a drive letter,
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// then we need to fix the path format for the sandbox rule.
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wchar_t volPath[MAX_PATH];
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if (::GetVolumePathNameW(wGMPPath.c_str(), volPath, MAX_PATH) &&
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::GetDriveTypeW(volPath) == DRIVE_REMOTE &&
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wGMPPath.compare(0, 2, L"\\\\") == 0) {
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std::wstring sandboxGMPPath(wGMPPath);
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sandboxGMPPath.insert(1, L"??\\UNC");
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mAllowedFilesRead.push_back(sandboxGMPPath + L"\\*");
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} else {
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mAllowedFilesRead.push_back(wGMPPath + L"\\*");
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}
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args.push_back(WideToUTF8(wGMPPath));
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#elif defined(XP_MACOSX) && defined(MOZ_SANDBOX)
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// Resolve symlinks in the plugin path. The sandbox prevents
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// resolving symlinks in the child process if access to link
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// source file is denied.
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nsAutoCString normalizedPath;
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nsresult rv = NormalizePath(mGMPPath.c_str(), normalizedPath);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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GMP_LOG(
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"GMPProcessParent::Launch: "
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"plugin path normaliziation failed for path: %s",
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mGMPPath.c_str());
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args.push_back(mGMPPath);
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} else {
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args.push_back(normalizedPath.get());
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}
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#else
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args.push_back(mGMPPath);
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#endif
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#ifdef MOZ_WIDGET_ANDROID
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// Add dummy values for pref and pref map to the file descriptors remapping
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// table. See bug 1440207 and 1481139.
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AddFdToRemap(kInvalidFd, kInvalidFd);
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AddFdToRemap(kInvalidFd, kInvalidFd);
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#endif
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return SyncLaunch(args, aTimeoutMs);
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}
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void GMPProcessParent::Delete(nsCOMPtr<nsIRunnable> aCallback) {
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mDeletedCallback = aCallback;
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XRE_GetIOMessageLoop()->PostTask(NewNonOwningRunnableMethod(
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"gmp::GMPProcessParent::DoDelete", this, &GMPProcessParent::DoDelete));
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}
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void GMPProcessParent::DoDelete() {
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MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
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Join();
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if (mDeletedCallback) {
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mDeletedCallback->Run();
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}
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Destroy();
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}
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#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
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bool GMPProcessParent::IsMacSandboxLaunchEnabled() {
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return sLaunchWithMacSandbox;
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}
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void GMPProcessParent::SetRequiresWindowServer(bool aRequiresWindowServer) {
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mRequiresWindowServer = aRequiresWindowServer;
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}
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bool GMPProcessParent::FillMacSandboxInfo(MacSandboxInfo& aInfo) {
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aInfo.type = MacSandboxType_GMP;
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aInfo.hasWindowServer = mRequiresWindowServer;
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aInfo.shouldLog = (aInfo.shouldLog || sMacSandboxGMPLogging);
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nsAutoCString appPath;
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if (!nsMacUtilsImpl::GetAppPath(appPath)) {
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GMP_LOG("GMPProcessParent::FillMacSandboxInfo: failed to get app path");
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return false;
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}
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aInfo.appPath.assign(appPath.get());
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GMP_LOG(
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"GMPProcessParent::FillMacSandboxInfo: "
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"plugin dir path: %s",
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mGMPPath.c_str());
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nsCOMPtr<nsIFile> pluginDir;
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nsresult rv = NS_NewLocalFile(NS_ConvertUTF8toUTF16(mGMPPath.c_str()), true,
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getter_AddRefs(pluginDir));
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if (NS_FAILED(rv)) {
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GMP_LOG(
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"GMPProcessParent::FillMacSandboxInfo: "
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"NS_NewLocalFile failed for plugin dir, rv=%d",
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rv);
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return false;
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}
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rv = pluginDir->Normalize();
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if (NS_FAILED(rv)) {
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GMP_LOG(
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"GMPProcessParent::FillMacSandboxInfo: "
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"failed to normalize plugin dir path, rv=%d",
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rv);
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return false;
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}
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nsAutoCString resolvedPluginPath;
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pluginDir->GetNativePath(resolvedPluginPath);
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aInfo.pluginPath.assign(resolvedPluginPath.get());
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GMP_LOG(
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"GMPProcessParent::FillMacSandboxInfo: "
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"resolved plugin dir path: %s",
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resolvedPluginPath.get());
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if (mozilla::IsDevelopmentBuild()) {
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GMP_LOG("GMPProcessParent::FillMacSandboxInfo: IsDevelopmentBuild()=true");
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// Repo dir
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nsCOMPtr<nsIFile> repoDir;
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rv = nsMacUtilsImpl::GetRepoDir(getter_AddRefs(repoDir));
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if (NS_FAILED(rv)) {
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GMP_LOG("GMPProcessParent::FillMacSandboxInfo: failed to get repo dir");
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return false;
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}
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nsCString repoDirPath;
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Unused << repoDir->GetNativePath(repoDirPath);
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aInfo.testingReadPath1 = repoDirPath.get();
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GMP_LOG(
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"GMPProcessParent::FillMacSandboxInfo: "
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"repo dir path: %s",
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repoDirPath.get());
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// Object dir
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nsCOMPtr<nsIFile> objDir;
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rv = nsMacUtilsImpl::GetObjDir(getter_AddRefs(objDir));
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if (NS_FAILED(rv)) {
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GMP_LOG("GMPProcessParent::FillMacSandboxInfo: failed to get object dir");
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return false;
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}
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nsCString objDirPath;
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Unused << objDir->GetNativePath(objDirPath);
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aInfo.testingReadPath2 = objDirPath.get();
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GMP_LOG(
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"GMPProcessParent::FillMacSandboxInfo: "
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"object dir path: %s",
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objDirPath.get());
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}
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return true;
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}
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nsresult GMPProcessParent::NormalizePath(const char* aPath,
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nsACString& aNormalizedPath) {
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nsCOMPtr<nsIFile> fileOrDir;
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nsresult rv = NS_NewLocalFile(NS_ConvertUTF8toUTF16(aPath), true,
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getter_AddRefs(fileOrDir));
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NS_ENSURE_SUCCESS(rv, rv);
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rv = fileOrDir->Normalize();
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NS_ENSURE_SUCCESS(rv, rv);
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fileOrDir->GetNativePath(aNormalizedPath);
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return NS_OK;
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}
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#endif
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} // namespace gmp
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} // namespace mozilla
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