diff options
Diffstat (limited to 'dom/ipc/ContentProcess.cpp')
-rw-r--r-- | dom/ipc/ContentProcess.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/dom/ipc/ContentProcess.cpp b/dom/ipc/ContentProcess.cpp new file mode 100644 index 0000000000..8761b25860 --- /dev/null +++ b/dom/ipc/ContentProcess.cpp @@ -0,0 +1,185 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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 "mozilla/ipc/IOThreadChild.h" + +#include "ContentProcess.h" +#include "base/shared_memory.h" +#include "mozilla/Preferences.h" + +#if defined(XP_MACOSX) && defined(MOZ_SANDBOX) +# include <stdlib.h> +# include "mozilla/Sandbox.h" +# include "mozilla/SandboxSettings.h" +#endif + +#include "nsAppRunner.h" +#include "mozilla/ipc/BackgroundChild.h" +#include "mozilla/ipc/ProcessUtils.h" +#include "mozilla/GeckoArgs.h" +#include "nsCategoryManagerUtils.h" + +using mozilla::ipc::IOThreadChild; + +namespace mozilla::dom { + +static nsresult GetGREDir(nsIFile** aResult) { + nsCOMPtr<nsIFile> current; + nsresult rv = XRE_GetBinaryPath(getter_AddRefs(current)); + NS_ENSURE_SUCCESS(rv, rv); + +#ifdef OS_MACOSX + // Walk out of [subprocess].app/Contents/MacOS to the real GRE dir + const int depth = 4; +#else + const int depth = 1; +#endif + + for (int i = 0; i < depth; ++i) { + nsCOMPtr<nsIFile> parent; + rv = current->GetParent(getter_AddRefs(parent)); + NS_ENSURE_SUCCESS(rv, rv); + + current = parent; + NS_ENSURE_TRUE(current, NS_ERROR_UNEXPECTED); + } + +#ifdef OS_MACOSX + rv = current->SetNativeLeafName("Resources"_ns); + NS_ENSURE_SUCCESS(rv, rv); +#endif + + current.forget(aResult); + + return NS_OK; +} + +ContentProcess::ContentProcess(ProcessId aParentPid, + const nsID& aMessageChannelId) + : ProcessChild(aParentPid, aMessageChannelId) { + NS_LogInit(); +} + +ContentProcess::~ContentProcess() { NS_LogTerm(); } + +bool ContentProcess::Init(int aArgc, char* aArgv[]) { + Maybe<uint64_t> childID = geckoargs::sChildID.Get(aArgc, aArgv); + Maybe<bool> isForBrowser = Nothing(); + Maybe<const char*> parentBuildID = + geckoargs::sParentBuildID.Get(aArgc, aArgv); + Maybe<uint64_t> jsInitHandle; + Maybe<uint64_t> jsInitLen = geckoargs::sJsInitLen.Get(aArgc, aArgv); + + nsCOMPtr<nsIFile> appDirArg; + Maybe<const char*> appDir = geckoargs::sAppDir.Get(aArgc, aArgv); + if (appDir.isSome()) { + bool flag; + nsresult rv = XRE_GetFileFromPath(*appDir, getter_AddRefs(appDirArg)); + if (NS_FAILED(rv) || NS_FAILED(appDirArg->Exists(&flag)) || !flag) { + NS_WARNING("Invalid application directory passed to content process."); + appDirArg = nullptr; + } + } + + Maybe<bool> safeMode = geckoargs::sSafeMode.Get(aArgc, aArgv); + if (safeMode.isSome()) { + gSafeMode = *safeMode; + } + + Maybe<bool> isForBrowerParam = geckoargs::sIsForBrowser.Get(aArgc, aArgv); + Maybe<bool> notForBrowserParam = geckoargs::sNotForBrowser.Get(aArgc, aArgv); + if (isForBrowerParam.isSome()) { + isForBrowser = Some(true); + } + if (notForBrowserParam.isSome()) { + isForBrowser = Some(false); + } + + // command line: [-jsInitHandle handle] -jsInitLen length +#ifdef XP_WIN + jsInitHandle = geckoargs::sJsInitHandle.Get(aArgc, aArgv); +#endif + +#if defined(XP_MACOSX) && defined(MOZ_SANDBOX) + nsCOMPtr<nsIFile> profileDir; + bool flag; + Maybe<const char*> profile = geckoargs::sProfile.Get(aArgc, aArgv); + // xpcshell self-test on macOS will hit this, so check isSome() otherwise + // Maybe<> assertions will MOZ_CRASH() us. + if (profile.isSome()) { + nsresult rv = XRE_GetFileFromPath(*profile, getter_AddRefs(profileDir)); + if (NS_FAILED(rv) || NS_FAILED(profileDir->Exists(&flag)) || !flag) { + NS_WARNING("Invalid profile directory passed to content process."); + profileDir = nullptr; + } + } else { + NS_WARNING("No profile directory passed to content process."); + } +#endif /* XP_MACOSX && MOZ_SANDBOX */ + + // Did we find all the mandatory flags? + if (childID.isNothing() || isForBrowser.isNothing() || + parentBuildID.isNothing()) { + return false; + } + + if (!ProcessChild::InitPrefs(aArgc, aArgv)) { + return false; + } + + if (!::mozilla::ipc::ImportSharedJSInit(jsInitHandle.valueOr(0), + jsInitLen.valueOr(0))) { + return false; + } + + mContent.Init(TakeInitialEndpoint(), *parentBuildID, *childID, *isForBrowser); + + nsCOMPtr<nsIFile> greDir; + nsresult rv = GetGREDir(getter_AddRefs(greDir)); + if (NS_FAILED(rv)) { + return false; + } + + nsCOMPtr<nsIFile> xpcomAppDir = appDirArg ? appDirArg : greDir; + + rv = mDirProvider.Initialize(xpcomAppDir, greDir); + if (NS_FAILED(rv)) { + return false; + } + + rv = NS_InitXPCOM(nullptr, xpcomAppDir, &mDirProvider); + if (NS_FAILED(rv)) { + return false; + } + + // "app-startup" is the name of both the category and the event + NS_CreateServicesFromCategory("app-startup", nullptr, "app-startup", nullptr); + +#if (defined(XP_MACOSX)) && defined(MOZ_SANDBOX) + mContent.SetProfileDir(profileDir); +# if defined(DEBUG) + if (IsContentSandboxEnabled()) { + AssertMacSandboxEnabled(); + } +# endif /* DEBUG */ +#endif /* XP_MACOSX && MOZ_SANDBOX */ + + // Do this as early as possible to get the parent process to initialize the + // background thread since we'll likely need database information very soon. + mozilla::ipc::BackgroundChild::Startup(); + mozilla::ipc::BackgroundChild::InitContentStarter(&mContent); + + return true; +} + +// Note: CleanUp() never gets called in non-debug builds because we exit early +// in ContentChild::ActorDestroy(). +void ContentProcess::CleanUp() { + mDirProvider.DoShutdown(); + NS_ShutdownXPCOM(nullptr); +} + +} // namespace mozilla::dom |