зеркало из https://github.com/mozilla/gecko-dev.git
426 строки
15 KiB
C++
426 строки
15 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "InternalRequest.h"
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#include "nsIContentPolicy.h"
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#include "mozilla/dom/Document.h"
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#include "nsStreamUtils.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/dom/FetchTypes.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/WorkerCommon.h"
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#include "mozilla/dom/WorkerPrivate.h"
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namespace mozilla {
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namespace dom {
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// The global is used to extract the principal.
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already_AddRefed<InternalRequest> InternalRequest::GetRequestConstructorCopy(
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nsIGlobalObject* aGlobal, ErrorResult& aRv) const {
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MOZ_RELEASE_ASSERT(!mURLList.IsEmpty(),
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"Internal Request's urlList should not be empty when "
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"copied from constructor.");
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RefPtr<InternalRequest> copy =
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new InternalRequest(mURLList.LastElement(), mFragment);
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copy->SetMethod(mMethod);
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copy->mHeaders = new InternalHeaders(*mHeaders);
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copy->SetUnsafeRequest();
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copy->mBodyStream = mBodyStream;
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copy->mBodyLength = mBodyLength;
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// The "client" is not stored in our implementation. Fetch API users should
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// use the appropriate window/document/principal and other Gecko security
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// mechanisms as appropriate.
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copy->mSameOriginDataURL = true;
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copy->mPreserveContentCodings = true;
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copy->mReferrer = mReferrer;
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copy->mReferrerPolicy = mReferrerPolicy;
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copy->mEnvironmentReferrerPolicy = mEnvironmentReferrerPolicy;
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copy->mIntegrity = mIntegrity;
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copy->mMozErrors = mMozErrors;
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copy->mContentPolicyType = mContentPolicyTypeOverridden
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? mContentPolicyType
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: nsIContentPolicy::TYPE_FETCH;
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copy->mMode = mMode;
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copy->mCredentialsMode = mCredentialsMode;
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copy->mCacheMode = mCacheMode;
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copy->mRedirectMode = mRedirectMode;
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copy->mCreatedByFetchEvent = mCreatedByFetchEvent;
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copy->mContentPolicyTypeOverridden = mContentPolicyTypeOverridden;
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copy->mPreferredAlternativeDataType = mPreferredAlternativeDataType;
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return copy.forget();
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}
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already_AddRefed<InternalRequest> InternalRequest::Clone() {
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RefPtr<InternalRequest> clone = new InternalRequest(*this);
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if (!mBodyStream) {
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return clone.forget();
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}
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nsCOMPtr<nsIInputStream> clonedBody;
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nsCOMPtr<nsIInputStream> replacementBody;
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nsresult rv = NS_CloneInputStream(mBodyStream, getter_AddRefs(clonedBody),
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getter_AddRefs(replacementBody));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return nullptr;
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}
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clone->mBodyStream.swap(clonedBody);
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if (replacementBody) {
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mBodyStream.swap(replacementBody);
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}
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return clone.forget();
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}
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InternalRequest::InternalRequest(const nsACString& aURL,
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const nsACString& aFragment)
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: mMethod("GET"),
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mHeaders(new InternalHeaders(HeadersGuardEnum::None)),
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mBodyLength(InternalResponse::UNKNOWN_BODY_SIZE),
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mContentPolicyType(nsIContentPolicy::TYPE_FETCH),
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mReferrer(NS_LITERAL_STRING(kFETCH_CLIENT_REFERRER_STR)),
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mReferrerPolicy(ReferrerPolicy::_empty),
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mEnvironmentReferrerPolicy(net::RP_Unset),
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mMode(RequestMode::No_cors),
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mCredentialsMode(RequestCredentials::Omit),
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mResponseTainting(LoadTainting::Basic),
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mCacheMode(RequestCache::Default),
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mRedirectMode(RequestRedirect::Follow),
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mMozErrors(false),
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mAuthenticationFlag(false),
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mPreserveContentCodings(false)
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// FIXME(nsm): This should be false by default, but will lead to the
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// algorithm never loading data: URLs right now. See Bug 1018872 about
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// how certain contexts will override it to set it to true. Fetch
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// specification does not handle this yet.
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,
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mSameOriginDataURL(true),
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mSkipServiceWorker(false),
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mSynchronous(false),
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mUnsafeRequest(false),
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mUseURLCredentials(false) {
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MOZ_ASSERT(!aURL.IsEmpty());
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AddURL(aURL, aFragment);
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}
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InternalRequest::InternalRequest(
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const nsACString& aURL, const nsACString& aFragment,
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const nsACString& aMethod, already_AddRefed<InternalHeaders> aHeaders,
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RequestCache aCacheMode, RequestMode aMode,
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RequestRedirect aRequestRedirect, RequestCredentials aRequestCredentials,
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const nsAString& aReferrer, ReferrerPolicy aReferrerPolicy,
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nsContentPolicyType aContentPolicyType, const nsAString& aIntegrity)
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: mMethod(aMethod),
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mHeaders(aHeaders),
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mBodyLength(InternalResponse::UNKNOWN_BODY_SIZE),
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mContentPolicyType(aContentPolicyType),
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mReferrer(aReferrer),
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mReferrerPolicy(aReferrerPolicy),
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mEnvironmentReferrerPolicy(net::RP_Unset),
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mMode(aMode),
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mCredentialsMode(aRequestCredentials),
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mResponseTainting(LoadTainting::Basic),
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mCacheMode(aCacheMode),
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mRedirectMode(aRequestRedirect),
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mIntegrity(aIntegrity),
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mMozErrors(false),
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mAuthenticationFlag(false),
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mPreserveContentCodings(false)
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// FIXME See the above comment in the default constructor.
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,
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mSameOriginDataURL(true),
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mSkipServiceWorker(false),
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mSynchronous(false),
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mUnsafeRequest(false),
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mUseURLCredentials(false) {
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MOZ_ASSERT(!aURL.IsEmpty());
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AddURL(aURL, aFragment);
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}
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InternalRequest::InternalRequest(const InternalRequest& aOther)
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: mMethod(aOther.mMethod),
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mURLList(aOther.mURLList),
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mHeaders(new InternalHeaders(*aOther.mHeaders)),
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mBodyLength(InternalResponse::UNKNOWN_BODY_SIZE),
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mContentPolicyType(aOther.mContentPolicyType),
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mReferrer(aOther.mReferrer),
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mReferrerPolicy(aOther.mReferrerPolicy),
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mEnvironmentReferrerPolicy(aOther.mEnvironmentReferrerPolicy),
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mMode(aOther.mMode),
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mCredentialsMode(aOther.mCredentialsMode),
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mResponseTainting(aOther.mResponseTainting),
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mCacheMode(aOther.mCacheMode),
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mRedirectMode(aOther.mRedirectMode),
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mIntegrity(aOther.mIntegrity),
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mMozErrors(aOther.mMozErrors),
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mFragment(aOther.mFragment),
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mAuthenticationFlag(aOther.mAuthenticationFlag),
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mPreserveContentCodings(aOther.mPreserveContentCodings),
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mSameOriginDataURL(aOther.mSameOriginDataURL),
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mSkipServiceWorker(aOther.mSkipServiceWorker),
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mSynchronous(aOther.mSynchronous),
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mUnsafeRequest(aOther.mUnsafeRequest),
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mUseURLCredentials(aOther.mUseURLCredentials),
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mCreatedByFetchEvent(aOther.mCreatedByFetchEvent),
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mContentPolicyTypeOverridden(aOther.mContentPolicyTypeOverridden) {
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// NOTE: does not copy body stream... use the fallible Clone() for that
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}
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InternalRequest::~InternalRequest() {}
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void InternalRequest::SetContentPolicyType(
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nsContentPolicyType aContentPolicyType) {
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mContentPolicyType = aContentPolicyType;
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}
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void InternalRequest::OverrideContentPolicyType(
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nsContentPolicyType aContentPolicyType) {
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SetContentPolicyType(aContentPolicyType);
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mContentPolicyTypeOverridden = true;
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}
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/* static */
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RequestDestination InternalRequest::MapContentPolicyTypeToRequestDestination(
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nsContentPolicyType aContentPolicyType) {
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RequestDestination destination = RequestDestination::_empty;
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switch (aContentPolicyType) {
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case nsIContentPolicy::TYPE_OTHER:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_INTERNAL_SCRIPT:
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case nsIContentPolicy::TYPE_INTERNAL_SCRIPT_PRELOAD:
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case nsIContentPolicy::TYPE_INTERNAL_MODULE:
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case nsIContentPolicy::TYPE_INTERNAL_MODULE_PRELOAD:
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case nsIContentPolicy::TYPE_INTERNAL_SERVICE_WORKER:
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case nsIContentPolicy::TYPE_INTERNAL_WORKER_IMPORT_SCRIPTS:
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case nsIContentPolicy::TYPE_SCRIPT:
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destination = RequestDestination::Script;
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break;
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case nsIContentPolicy::TYPE_INTERNAL_WORKER:
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destination = RequestDestination::Worker;
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break;
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case nsIContentPolicy::TYPE_INTERNAL_SHARED_WORKER:
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destination = RequestDestination::Sharedworker;
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break;
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case nsIContentPolicy::TYPE_IMAGESET:
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case nsIContentPolicy::TYPE_INTERNAL_IMAGE:
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case nsIContentPolicy::TYPE_INTERNAL_IMAGE_PRELOAD:
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case nsIContentPolicy::TYPE_INTERNAL_IMAGE_FAVICON:
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case nsIContentPolicy::TYPE_IMAGE:
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destination = RequestDestination::Image;
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break;
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case nsIContentPolicy::TYPE_STYLESHEET:
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case nsIContentPolicy::TYPE_INTERNAL_STYLESHEET:
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case nsIContentPolicy::TYPE_INTERNAL_STYLESHEET_PRELOAD:
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destination = RequestDestination::Style;
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break;
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case nsIContentPolicy::TYPE_OBJECT:
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case nsIContentPolicy::TYPE_INTERNAL_OBJECT:
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destination = RequestDestination::Object;
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break;
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case nsIContentPolicy::TYPE_INTERNAL_EMBED:
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destination = RequestDestination::Embed;
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break;
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case nsIContentPolicy::TYPE_DOCUMENT:
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case nsIContentPolicy::TYPE_SUBDOCUMENT:
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case nsIContentPolicy::TYPE_INTERNAL_IFRAME:
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destination = RequestDestination::Document;
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break;
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case nsIContentPolicy::TYPE_INTERNAL_FRAME:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_REFRESH:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_XBL:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_PING:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_XMLHTTPREQUEST:
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case nsIContentPolicy::TYPE_INTERNAL_XMLHTTPREQUEST:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_INTERNAL_EVENTSOURCE:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_OBJECT_SUBREQUEST:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_DTD:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_FONT:
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destination = RequestDestination::Font;
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break;
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case nsIContentPolicy::TYPE_MEDIA:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_INTERNAL_AUDIO:
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destination = RequestDestination::Audio;
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break;
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case nsIContentPolicy::TYPE_INTERNAL_VIDEO:
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destination = RequestDestination::Video;
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break;
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case nsIContentPolicy::TYPE_INTERNAL_TRACK:
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destination = RequestDestination::Track;
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break;
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case nsIContentPolicy::TYPE_WEBSOCKET:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_CSP_REPORT:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_XSLT:
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destination = RequestDestination::Xslt;
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break;
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case nsIContentPolicy::TYPE_BEACON:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_FETCH:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_WEB_MANIFEST:
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destination = RequestDestination::Manifest;
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break;
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case nsIContentPolicy::TYPE_SAVEAS_DOWNLOAD:
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destination = RequestDestination::_empty;
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break;
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case nsIContentPolicy::TYPE_SPECULATIVE:
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destination = RequestDestination::_empty;
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break;
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default:
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MOZ_ASSERT(false, "Unhandled nsContentPolicyType value");
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break;
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}
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return destination;
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}
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// static
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bool InternalRequest::IsNavigationContentPolicy(
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nsContentPolicyType aContentPolicyType) {
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// https://fetch.spec.whatwg.org/#navigation-request-context
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//
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// A navigation request context is one of "form", "frame", "hyperlink",
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// "iframe", "internal" (as long as context frame type is not "none"),
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// "location", "metarefresh", and "prerender".
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//
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// Note, all of these request types are effectively initiated by nsDocShell.
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//
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// The TYPE_REFRESH is used in some code paths for metarefresh, but will not
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// be seen during the actual load. Instead the new load gets a normal
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// nsDocShell policy type. We include it here in case this utility method
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// is called before the load starts.
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return aContentPolicyType == nsIContentPolicy::TYPE_DOCUMENT ||
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aContentPolicyType == nsIContentPolicy::TYPE_SUBDOCUMENT ||
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aContentPolicyType == nsIContentPolicy::TYPE_INTERNAL_FRAME ||
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aContentPolicyType == nsIContentPolicy::TYPE_INTERNAL_IFRAME ||
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aContentPolicyType == nsIContentPolicy::TYPE_REFRESH;
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}
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// static
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bool InternalRequest::IsWorkerContentPolicy(
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nsContentPolicyType aContentPolicyType) {
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// https://fetch.spec.whatwg.org/#worker-request-context
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//
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// A worker request context is one of "serviceworker", "sharedworker", and
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// "worker".
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//
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// Note, service workers are not included here because currently there is
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// no way to generate a Request with a "serviceworker" RequestDestination.
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// ServiceWorker scripts cannot be intercepted.
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return aContentPolicyType == nsIContentPolicy::TYPE_INTERNAL_WORKER ||
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aContentPolicyType == nsIContentPolicy::TYPE_INTERNAL_SHARED_WORKER;
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}
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bool InternalRequest::IsNavigationRequest() const {
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return IsNavigationContentPolicy(mContentPolicyType);
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}
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bool InternalRequest::IsWorkerRequest() const {
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return IsWorkerContentPolicy(mContentPolicyType);
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}
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bool InternalRequest::IsClientRequest() const {
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return IsNavigationRequest() || IsWorkerRequest();
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}
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// static
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RequestMode InternalRequest::MapChannelToRequestMode(nsIChannel* aChannel) {
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MOZ_ASSERT(aChannel);
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nsCOMPtr<nsILoadInfo> loadInfo = aChannel->LoadInfo();
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nsContentPolicyType contentPolicy = loadInfo->InternalContentPolicyType();
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if (IsNavigationContentPolicy(contentPolicy)) {
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return RequestMode::Navigate;
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}
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// TODO: remove the worker override once securityMode is fully implemented
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// (bug 1189945)
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if (IsWorkerContentPolicy(contentPolicy)) {
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return RequestMode::Same_origin;
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}
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uint32_t securityMode = loadInfo->GetSecurityMode();
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switch (securityMode) {
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case nsILoadInfo::SEC_REQUIRE_SAME_ORIGIN_DATA_INHERITS:
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case nsILoadInfo::SEC_REQUIRE_SAME_ORIGIN_DATA_IS_BLOCKED:
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return RequestMode::Same_origin;
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case nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_INHERITS:
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case nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL:
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return RequestMode::No_cors;
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case nsILoadInfo::SEC_REQUIRE_CORS_DATA_INHERITS:
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// TODO: Check additional flag force-preflight after bug 1199693 (bug
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// 1189945)
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return RequestMode::Cors;
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default:
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MOZ_ASSERT_UNREACHABLE("Unexpected security mode!");
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return RequestMode::Same_origin;
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}
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}
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// static
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RequestCredentials InternalRequest::MapChannelToRequestCredentials(
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nsIChannel* aChannel) {
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MOZ_ASSERT(aChannel);
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nsCOMPtr<nsILoadInfo> loadInfo = aChannel->LoadInfo();
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uint32_t cookiePolicy = loadInfo->GetCookiePolicy();
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if (cookiePolicy == nsILoadInfo::SEC_COOKIES_INCLUDE) {
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return RequestCredentials::Include;
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} else if (cookiePolicy == nsILoadInfo::SEC_COOKIES_OMIT) {
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return RequestCredentials::Omit;
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} else if (cookiePolicy == nsILoadInfo::SEC_COOKIES_SAME_ORIGIN) {
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return RequestCredentials::Same_origin;
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}
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MOZ_ASSERT_UNREACHABLE("Unexpected cookie policy!");
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return RequestCredentials::Same_origin;
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}
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void InternalRequest::MaybeSkipCacheIfPerformingRevalidation() {
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if (mCacheMode == RequestCache::Default &&
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mHeaders->HasRevalidationHeaders()) {
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mCacheMode = RequestCache::No_store;
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}
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}
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void InternalRequest::SetPrincipalInfo(
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UniquePtr<mozilla::ipc::PrincipalInfo> aPrincipalInfo) {
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mPrincipalInfo = std::move(aPrincipalInfo);
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}
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} // namespace dom
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} // namespace mozilla
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