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Diffstat (limited to 'js/xpconnect/src/XPCRuntimeService.cpp')
| -rw-r--r-- | js/xpconnect/src/XPCRuntimeService.cpp | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/js/xpconnect/src/XPCRuntimeService.cpp b/js/xpconnect/src/XPCRuntimeService.cpp new file mode 100644 index 0000000000..2c283ea2bc --- /dev/null +++ b/js/xpconnect/src/XPCRuntimeService.cpp @@ -0,0 +1,215 @@ +/* -*- 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 "xpcprivate.h" +#include "xpc_make_class.h" + +#include "nsContentUtils.h" +#include "BackstagePass.h" +#include "mozilla/Result.h" +#include "mozilla/dom/BindingUtils.h" +#include "mozilla/dom/WebIDLGlobalNameHash.h" +#include "mozilla/dom/IndexedDatabaseManager.h" +#include "mozilla/ipc/BackgroundUtils.h" +#include "mozilla/ipc/PBackgroundSharedTypes.h" + +using namespace mozilla::dom; + +NS_IMPL_ISUPPORTS(BackstagePass, nsIXPCScriptable, nsIGlobalObject, + nsIClassInfo, nsIScriptObjectPrincipal, + nsISupportsWeakReference) + +BackstagePass::BackstagePass() + : mPrincipal(nsContentUtils::GetSystemPrincipal()), mWrapper(nullptr) {} + +// XXX(nika): It appears we don't have support for mayresolve hooks in +// nsIXPCScriptable, and I don't really want to add it because I'd rather just +// kill nsIXPCScriptable alltogether, so we don't use it here. + +// The nsIXPCScriptable map declaration that will generate stubs for us... +#define XPC_MAP_CLASSNAME BackstagePass +#define XPC_MAP_QUOTED_CLASSNAME "BackstagePass" +#define XPC_MAP_FLAGS \ + (XPC_SCRIPTABLE_WANT_RESOLVE | XPC_SCRIPTABLE_WANT_NEWENUMERATE | \ + XPC_SCRIPTABLE_WANT_FINALIZE | XPC_SCRIPTABLE_WANT_PRECREATE | \ + XPC_SCRIPTABLE_USE_JSSTUB_FOR_ADDPROPERTY | \ + XPC_SCRIPTABLE_USE_JSSTUB_FOR_DELPROPERTY | \ + XPC_SCRIPTABLE_DONT_ENUM_QUERY_INTERFACE | \ + XPC_SCRIPTABLE_IS_GLOBAL_OBJECT | \ + XPC_SCRIPTABLE_DONT_REFLECT_INTERFACE_NAMES) +#include "xpc_map_end.h" /* This will #undef the above */ + +JSObject* BackstagePass::GetGlobalJSObject() { + if (mWrapper) { + return mWrapper->GetFlatJSObject(); + } + return nullptr; +} + +JSObject* BackstagePass::GetGlobalJSObjectPreserveColor() const { + if (mWrapper) { + return mWrapper->GetFlatJSObjectPreserveColor(); + } + return nullptr; +} + +void BackstagePass::SetGlobalObject(JSObject* global) { + nsISupports* p = XPCWrappedNative::Get(global); + MOZ_ASSERT(p); + mWrapper = static_cast<XPCWrappedNative*>(p); +} + +NS_IMETHODIMP +BackstagePass::Resolve(nsIXPConnectWrappedNative* wrapper, JSContext* cx, + JSObject* objArg, jsid idArg, bool* resolvedp, + bool* _retval) { + JS::RootedObject obj(cx, objArg); + JS::RootedId id(cx, idArg); + *_retval = + WebIDLGlobalNameHash::ResolveForSystemGlobal(cx, obj, id, resolvedp); + if (!*_retval) { + return NS_ERROR_FAILURE; + } + + if (*resolvedp) { + return NS_OK; + } + + XPCJSContext* xpccx = XPCJSContext::Get(); + if (id == xpccx->GetStringID(XPCJSContext::IDX_FETCH)) { + *_retval = xpc::SandboxCreateFetch(cx, obj); + if (!*_retval) { + return NS_ERROR_FAILURE; + } + *resolvedp = true; + } else if (id == xpccx->GetStringID(XPCJSContext::IDX_CRYPTO)) { + *_retval = xpc::SandboxCreateCrypto(cx, obj); + if (!*_retval) { + return NS_ERROR_FAILURE; + } + *resolvedp = true; + } else if (id == xpccx->GetStringID(XPCJSContext::IDX_INDEXEDDB)) { + *_retval = IndexedDatabaseManager::DefineIndexedDB(cx, obj); + if (!*_retval) { + return NS_ERROR_FAILURE; + } + *resolvedp = true; + } else if (id == xpccx->GetStringID(XPCJSContext::IDX_STRUCTUREDCLONE)) { + *_retval = xpc::SandboxCreateStructuredClone(cx, obj); + if (!*_retval) { + return NS_ERROR_FAILURE; + } + *resolvedp = true; + } + + return NS_OK; +} + +NS_IMETHODIMP +BackstagePass::NewEnumerate(nsIXPConnectWrappedNative* wrapper, JSContext* cx, + JSObject* objArg, + JS::MutableHandleIdVector properties, + bool enumerableOnly, bool* _retval) { + JS::RootedObject obj(cx, objArg); + + XPCJSContext* xpccx = XPCJSContext::Get(); + if (!properties.append(xpccx->GetStringID(XPCJSContext::IDX_FETCH)) || + !properties.append(xpccx->GetStringID(XPCJSContext::IDX_CRYPTO)) || + !properties.append(xpccx->GetStringID(XPCJSContext::IDX_INDEXEDDB)) || + !properties.append( + xpccx->GetStringID(XPCJSContext::IDX_STRUCTUREDCLONE))) { + return NS_ERROR_FAILURE; + } + + *_retval = WebIDLGlobalNameHash::NewEnumerateSystemGlobal(cx, obj, properties, + enumerableOnly); + return *_retval ? NS_OK : NS_ERROR_FAILURE; +} + +/***************************************************************************/ +NS_IMETHODIMP +BackstagePass::GetInterfaces(nsTArray<nsIID>& aArray) { + aArray = nsTArray<nsIID>{NS_GET_IID(nsIXPCScriptable), + NS_GET_IID(nsIScriptObjectPrincipal)}; + return NS_OK; +} + +NS_IMETHODIMP +BackstagePass::GetScriptableHelper(nsIXPCScriptable** retval) { + nsCOMPtr<nsIXPCScriptable> scriptable = this; + scriptable.forget(retval); + return NS_OK; +} + +NS_IMETHODIMP +BackstagePass::GetContractID(nsACString& aContractID) { + aContractID.SetIsVoid(true); + return NS_ERROR_NOT_AVAILABLE; +} + +NS_IMETHODIMP +BackstagePass::GetClassDescription(nsACString& aClassDescription) { + aClassDescription.AssignLiteral("BackstagePass"); + return NS_OK; +} + +NS_IMETHODIMP +BackstagePass::GetClassID(nsCID** aClassID) { + *aClassID = nullptr; + return NS_OK; +} + +NS_IMETHODIMP +BackstagePass::GetFlags(uint32_t* aFlags) { + *aFlags = 0; + return NS_OK; +} + +NS_IMETHODIMP +BackstagePass::GetClassIDNoAlloc(nsCID* aClassIDNoAlloc) { + return NS_ERROR_NOT_AVAILABLE; +} + +NS_IMETHODIMP +BackstagePass::Finalize(nsIXPConnectWrappedNative* wrapper, JS::GCContext* gcx, + JSObject* obj) { + nsCOMPtr<nsIGlobalObject> bsp(do_QueryInterface(wrapper->Native())); + MOZ_ASSERT(bsp); + static_cast<BackstagePass*>(bsp.get())->ForgetGlobalObject(); + return NS_OK; +} + +NS_IMETHODIMP +BackstagePass::PreCreate(nsISupports* nativeObj, JSContext* cx, + JSObject* globalObj, JSObject** parentObj) { + // We do the same trick here as for WindowSH. Return the js global + // as parent, so XPConenct can find the right scope and the wrapper + // that already exists. + nsCOMPtr<nsIGlobalObject> global(do_QueryInterface(nativeObj)); + MOZ_ASSERT(global, "nativeObj not a global object!"); + + JSObject* jsglobal = global->GetGlobalJSObject(); + if (jsglobal) { + *parentObj = jsglobal; + } + return NS_OK; +} + +mozilla::Result<mozilla::ipc::PrincipalInfo, nsresult> +BackstagePass::GetStorageKey() { + MOZ_ASSERT(NS_IsMainThread()); + + mozilla::ipc::PrincipalInfo principalInfo; + nsresult rv = PrincipalToPrincipalInfo(mPrincipal, &principalInfo); + if (NS_FAILED(rv)) { + return mozilla::Err(rv); + } + + MOZ_ASSERT(principalInfo.type() == + mozilla::ipc::PrincipalInfo::TSystemPrincipalInfo); + + return std::move(principalInfo); +} |