зеркало из https://github.com/mozilla/gecko-dev.git
518 строки
13 KiB
C++
518 строки
13 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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#ifndef mozilla_dom_InternalRequest_h
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#define mozilla_dom_InternalRequest_h
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#include "mozilla/dom/HeadersBinding.h"
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#include "mozilla/dom/InternalHeaders.h"
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#include "mozilla/dom/RequestBinding.h"
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#include "mozilla/LoadTainting.h"
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#include "nsIContentPolicy.h"
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#include "nsIInputStream.h"
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#include "nsISupportsImpl.h"
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#ifdef DEBUG
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#include "nsIURLParser.h"
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#include "nsNetCID.h"
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#include "nsServiceManagerUtils.h"
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#endif
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namespace mozilla {
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namespace dom {
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/*
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* The mapping of RequestContext and nsContentPolicyType is currently as the
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* following. Note that this mapping is not perfect yet (see the TODO comments
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* below for examples).
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*
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* RequestContext | nsContentPolicyType
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* ------------------+--------------------
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* audio | TYPE_INTERNAL_AUDIO
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* beacon | TYPE_BEACON
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* cspreport | TYPE_CSP_REPORT
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* download |
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* embed | TYPE_INTERNAL_EMBED
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* eventsource |
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* favicon |
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* fetch | TYPE_FETCH
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* font | TYPE_FONT
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* form |
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* frame | TYPE_INTERNAL_FRAME
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* hyperlink |
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* iframe | TYPE_INTERNAL_IFRAME
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* image | TYPE_INTERNAL_IMAGE, TYPE_INTERNAL_IMAGE_PRELOAD
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* imageset | TYPE_IMAGESET
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* import | Not supported by Gecko
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* internal | TYPE_DOCUMENT, TYPE_XBL, TYPE_OTHER
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* location |
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* manifest | TYPE_WEB_MANIFEST
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* object | TYPE_INTERNAL_OBJECT
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* ping | TYPE_PING
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* plugin | TYPE_OBJECT_SUBREQUEST
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* prefetch |
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* script | TYPE_INTERNAL_SCRIPT, TYPE_INTERNAL_SCRIPT_PRELOAD
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* sharedworker | TYPE_INTERNAL_SHARED_WORKER
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* subresource | Not supported by Gecko
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* style | TYPE_INTERNAL_STYLESHEET, TYPE_INTERNAL_STYLESHEET_PRELOAD
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* track | TYPE_INTERNAL_TRACK
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* video | TYPE_INTERNAL_VIDEO
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* worker | TYPE_INTERNAL_WORKER
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* xmlhttprequest | TYPE_INTERNAL_XMLHTTPREQUEST
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* eventsource | TYPE_INTERNAL_EVENTSOURCE
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* xslt | TYPE_XSLT
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*
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* TODO: Figure out if TYPE_REFRESH maps to anything useful
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* TODO: Figure out if TYPE_DTD maps to anything useful
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* TODO: Figure out if TYPE_WEBSOCKET maps to anything useful
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* TODO: Add a content type for prefetch
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* TODO: Use the content type for manifest when it becomes available
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* TODO: Add a content type for location
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* TODO: Add a content type for hyperlink
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* TODO: Add a content type for form
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* TODO: Add a content type for favicon
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* TODO: Add a content type for download
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*/
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class Request;
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#define kFETCH_CLIENT_REFERRER_STR "about:client"
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class InternalRequest final
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{
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friend class Request;
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(InternalRequest)
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explicit InternalRequest(const nsACString& aURL)
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: mMethod("GET")
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, mHeaders(new InternalHeaders(HeadersGuardEnum::None))
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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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, 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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, mAuthenticationFlag(false)
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, mForceOriginHeader(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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, 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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{
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MOZ_ASSERT(!aURL.IsEmpty());
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AddURL(aURL);
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}
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InternalRequest(const nsACString& aURL,
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const nsACString& aMethod,
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already_AddRefed<InternalHeaders> aHeaders,
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RequestCache aCacheMode,
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RequestMode aMode,
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RequestRedirect aRequestRedirect,
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RequestCredentials aRequestCredentials,
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const nsAString& aReferrer,
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ReferrerPolicy aReferrerPolicy,
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nsContentPolicyType aContentPolicyType)
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: mMethod(aMethod)
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, mHeaders(aHeaders)
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, mContentPolicyType(aContentPolicyType)
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, mReferrer(aReferrer)
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, mReferrerPolicy(aReferrerPolicy)
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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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, mAuthenticationFlag(false)
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, mForceOriginHeader(false)
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, mPreserveContentCodings(false)
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// FIXME See the above comment in the default constructor.
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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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{
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MOZ_ASSERT(!aURL.IsEmpty());
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AddURL(aURL);
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}
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already_AddRefed<InternalRequest> Clone();
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void
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GetMethod(nsCString& aMethod) const
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{
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aMethod.Assign(mMethod);
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}
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void
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SetMethod(const nsACString& aMethod)
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{
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mMethod.Assign(aMethod);
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}
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bool
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HasSimpleMethod() const
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{
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return mMethod.LowerCaseEqualsASCII("get") ||
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mMethod.LowerCaseEqualsASCII("post") ||
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mMethod.LowerCaseEqualsASCII("head");
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}
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// GetURL should get the request's current url. A request has an associated
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// current url. It is a pointer to the last fetch URL in request's url list.
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void
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GetURL(nsACString& aURL) const
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{
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MOZ_RELEASE_ASSERT(!mURLList.IsEmpty(), "Internal Request's urlList should not be empty.");
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aURL.Assign(mURLList.LastElement());
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}
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// AddURL should append the url into url list.
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// Normally we strip the fragment from the URL in Request::Constructor.
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// If internal code is directly constructing this object they must
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// strip the fragment first. Since these should be well formed URLs we
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// can use a simple check for a fragment here. The full parser is
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// difficult to use off the main thread.
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void
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AddURL(const nsACString& aURL)
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{
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MOZ_ASSERT(!aURL.IsEmpty());
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mURLList.AppendElement(aURL);
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MOZ_ASSERT(mURLList.LastElement().Find(NS_LITERAL_CSTRING("#")) == kNotFound);
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}
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void
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GetURLList(nsTArray<nsCString>& aURLList)
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{
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aURLList.Assign(mURLList);
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}
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void
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GetReferrer(nsAString& aReferrer) const
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{
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aReferrer.Assign(mReferrer);
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}
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void
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SetReferrer(const nsAString& aReferrer)
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{
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#ifdef DEBUG
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bool validReferrer = false;
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if (aReferrer.IsEmpty() ||
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aReferrer.EqualsLiteral(kFETCH_CLIENT_REFERRER_STR)) {
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validReferrer = true;
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} else {
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nsCOMPtr<nsIURLParser> parser = do_GetService(NS_STDURLPARSER_CONTRACTID);
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if (!parser) {
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NS_WARNING("Could not get parser to validate URL!");
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} else {
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uint32_t schemePos;
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int32_t schemeLen;
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uint32_t authorityPos;
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int32_t authorityLen;
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uint32_t pathPos;
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int32_t pathLen;
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NS_ConvertUTF16toUTF8 ref(aReferrer);
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nsresult rv = parser->ParseURL(ref.get(), ref.Length(),
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&schemePos, &schemeLen,
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&authorityPos, &authorityLen,
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&pathPos, &pathLen);
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if (NS_FAILED(rv)) {
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NS_WARNING("Invalid referrer URL!");
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} else if (schemeLen < 0 || authorityLen < 0) {
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NS_WARNING("Invalid referrer URL!");
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} else {
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validReferrer = true;
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}
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}
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}
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MOZ_ASSERT(validReferrer);
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#endif
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mReferrer.Assign(aReferrer);
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}
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ReferrerPolicy
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ReferrerPolicy_() const
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{
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return mReferrerPolicy;
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}
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void
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SetReferrerPolicy(ReferrerPolicy aReferrerPolicy)
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{
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mReferrerPolicy = aReferrerPolicy;
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}
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bool
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SkipServiceWorker() const
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{
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return mSkipServiceWorker;
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}
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void
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SetSkipServiceWorker()
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{
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mSkipServiceWorker = true;
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}
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bool
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IsSynchronous() const
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{
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return mSynchronous;
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}
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RequestMode
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Mode() const
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{
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return mMode;
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}
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void
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SetMode(RequestMode aMode)
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{
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mMode = aMode;
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}
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RequestCredentials
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GetCredentialsMode() const
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{
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return mCredentialsMode;
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}
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void
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SetCredentialsMode(RequestCredentials aCredentialsMode)
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{
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mCredentialsMode = aCredentialsMode;
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}
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LoadTainting
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GetResponseTainting() const
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{
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return mResponseTainting;
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}
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void
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MaybeIncreaseResponseTainting(LoadTainting aTainting)
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{
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if (aTainting > mResponseTainting) {
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mResponseTainting = aTainting;
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}
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}
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RequestCache
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GetCacheMode() const
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{
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return mCacheMode;
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}
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void
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SetCacheMode(RequestCache aCacheMode)
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{
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mCacheMode = aCacheMode;
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}
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RequestRedirect
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GetRedirectMode() const
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{
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return mRedirectMode;
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}
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void
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SetRedirectMode(RequestRedirect aRedirectMode)
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{
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mRedirectMode = aRedirectMode;
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}
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nsContentPolicyType
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ContentPolicyType() const
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{
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return mContentPolicyType;
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}
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void
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SetContentPolicyType(nsContentPolicyType aContentPolicyType);
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void
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OverrideContentPolicyType(nsContentPolicyType aContentPolicyType);
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RequestContext
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Context() const
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{
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return MapContentPolicyTypeToRequestContext(mContentPolicyType);
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}
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bool
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UnsafeRequest() const
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{
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return mUnsafeRequest;
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}
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void
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SetUnsafeRequest()
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{
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mUnsafeRequest = true;
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}
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InternalHeaders*
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Headers()
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{
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return mHeaders;
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}
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bool
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ForceOriginHeader()
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{
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return mForceOriginHeader;
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}
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bool
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SameOriginDataURL() const
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{
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return mSameOriginDataURL;
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}
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void
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UnsetSameOriginDataURL()
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{
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mSameOriginDataURL = false;
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}
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void
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SetBody(nsIInputStream* aStream)
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{
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// A request's body may not be reset once set.
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MOZ_ASSERT_IF(aStream, !mBodyStream);
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mBodyStream = aStream;
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}
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// Will return the original stream!
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// Use a tee or copy if you don't want to erase the original.
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void
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GetBody(nsIInputStream** aStream)
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{
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nsCOMPtr<nsIInputStream> s = mBodyStream;
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s.forget(aStream);
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}
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// The global is used as the client for the new object.
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already_AddRefed<InternalRequest>
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GetRequestConstructorCopy(nsIGlobalObject* aGlobal, ErrorResult& aRv) const;
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bool
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WasCreatedByFetchEvent() const
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{
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return mCreatedByFetchEvent;
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}
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void
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SetCreatedByFetchEvent()
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{
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mCreatedByFetchEvent = true;
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}
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void
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ClearCreatedByFetchEvent()
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{
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mCreatedByFetchEvent = false;
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}
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bool
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IsNavigationRequest() const;
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bool
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IsWorkerRequest() const;
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bool
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IsClientRequest() const;
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void
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MaybeSkipCacheIfPerformingRevalidation();
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bool
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IsContentPolicyTypeOverridden() const
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{
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return mContentPolicyTypeOverridden;
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}
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static RequestMode
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MapChannelToRequestMode(nsIChannel* aChannel);
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static RequestCredentials
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MapChannelToRequestCredentials(nsIChannel* aChannel);
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private:
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// Does not copy mBodyStream. Use fallible Clone() for complete copy.
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explicit InternalRequest(const InternalRequest& aOther);
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~InternalRequest();
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static RequestContext
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MapContentPolicyTypeToRequestContext(nsContentPolicyType aContentPolicyType);
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static bool
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IsNavigationContentPolicy(nsContentPolicyType aContentPolicyType);
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static bool
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IsWorkerContentPolicy(nsContentPolicyType aContentPolicyType);
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nsCString mMethod;
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// mURLList: a list of one or more fetch URLs
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nsTArray<nsCString> mURLList;
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RefPtr<InternalHeaders> mHeaders;
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nsCOMPtr<nsIInputStream> mBodyStream;
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nsContentPolicyType mContentPolicyType;
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// Empty string: no-referrer
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// "about:client": client (default)
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// URL: an URL
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nsString mReferrer;
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ReferrerPolicy mReferrerPolicy;
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RequestMode mMode;
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RequestCredentials mCredentialsMode;
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LoadTainting mResponseTainting;
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RequestCache mCacheMode;
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RequestRedirect mRedirectMode;
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bool mAuthenticationFlag;
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bool mForceOriginHeader;
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bool mPreserveContentCodings;
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bool mSameOriginDataURL;
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bool mSkipServiceWorker;
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bool mSynchronous;
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bool mUnsafeRequest;
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bool mUseURLCredentials;
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// This is only set when a Request object is created by a fetch event. We
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// use it to check if Service Workers are simply fetching intercepted Request
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// objects without modifying them.
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bool mCreatedByFetchEvent = false;
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// This is only set when Request.overrideContentPolicyType() has been set.
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// It is illegal to pass such a Request object to a fetch() method unless
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// if the caller has chrome privileges.
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bool mContentPolicyTypeOverridden = false;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_InternalRequest_h
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