mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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378 lines
15 KiB
C++
378 lines
15 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:set et cin ts=4 sw=4 sts=4: */
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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 nsHttpChannel_h__
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#define nsHttpChannel_h__
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#include "HttpBaseChannel.h"
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#include "nsHttpTransaction.h"
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#include "nsInputStreamPump.h"
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#include "nsThreadUtils.h"
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#include "nsTArray.h"
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#include "nsIHttpEventSink.h"
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#include "nsICachingChannel.h"
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#include "nsICacheEntryDescriptor.h"
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#include "nsICacheListener.h"
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#include "nsIApplicationCacheChannel.h"
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#include "nsIPrompt.h"
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#include "nsIResumableChannel.h"
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#include "nsIProtocolProxyCallback.h"
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#include "nsICancelable.h"
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#include "nsIHttpAuthenticableChannel.h"
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#include "nsIHttpChannelAuthProvider.h"
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#include "nsIAsyncVerifyRedirectCallback.h"
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#include "nsICryptoHash.h"
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#include "nsITimedChannel.h"
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#include "nsDNSPrefetch.h"
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#include "TimingStruct.h"
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class nsAHttpConnection;
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class AutoRedirectVetoNotifier;
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using namespace mozilla::net;
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//-----------------------------------------------------------------------------
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// nsHttpChannel
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//-----------------------------------------------------------------------------
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class nsHttpChannel : public HttpBaseChannel
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, public HttpAsyncAborter<nsHttpChannel>
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, public nsIStreamListener
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, public nsICachingChannel
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, public nsICacheListener
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, public nsITransportEventSink
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, public nsIProtocolProxyCallback
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, public nsIHttpAuthenticableChannel
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, public nsIApplicationCacheChannel
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, public nsIAsyncVerifyRedirectCallback
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, public nsITimedChannel
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_NSIREQUESTOBSERVER
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NS_DECL_NSISTREAMLISTENER
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NS_DECL_NSICACHEINFOCHANNEL
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NS_DECL_NSICACHINGCHANNEL
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NS_DECL_NSICACHELISTENER
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NS_DECL_NSITRANSPORTEVENTSINK
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NS_DECL_NSIPROTOCOLPROXYCALLBACK
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NS_DECL_NSIPROXIEDCHANNEL
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NS_DECL_NSIAPPLICATIONCACHECONTAINER
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NS_DECL_NSIAPPLICATIONCACHECHANNEL
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NS_DECL_NSIASYNCVERIFYREDIRECTCALLBACK
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NS_DECL_NSITIMEDCHANNEL
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// nsIHttpAuthenticableChannel. We can't use
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// NS_DECL_NSIHTTPAUTHENTICABLECHANNEL because it duplicates cancel() and
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// others.
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NS_IMETHOD GetIsSSL(bool *aIsSSL);
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NS_IMETHOD GetProxyMethodIsConnect(bool *aProxyMethodIsConnect);
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NS_IMETHOD GetServerResponseHeader(nsACString & aServerResponseHeader);
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NS_IMETHOD GetProxyChallenges(nsACString & aChallenges);
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NS_IMETHOD GetWWWChallenges(nsACString & aChallenges);
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NS_IMETHOD SetProxyCredentials(const nsACString & aCredentials);
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NS_IMETHOD SetWWWCredentials(const nsACString & aCredentials);
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NS_IMETHOD OnAuthAvailable();
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NS_IMETHOD OnAuthCancelled(bool userCancel);
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// Functions we implement from nsIHttpAuthenticableChannel but are
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// declared in HttpBaseChannel must be implemented in this class. We
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// just call the HttpBaseChannel:: impls.
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NS_IMETHOD GetLoadFlags(nsLoadFlags *aLoadFlags);
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NS_IMETHOD GetURI(nsIURI **aURI);
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NS_IMETHOD GetNotificationCallbacks(nsIInterfaceRequestor **aCallbacks);
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NS_IMETHOD GetLoadGroup(nsILoadGroup **aLoadGroup);
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NS_IMETHOD GetRequestMethod(nsACString& aMethod);
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nsHttpChannel();
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virtual ~nsHttpChannel();
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virtual nsresult Init(nsIURI *aURI, PRUint8 aCaps, nsProxyInfo *aProxyInfo);
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// Methods HttpBaseChannel didn't implement for us or that we override.
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//
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// nsIRequest
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NS_IMETHOD Cancel(nsresult status);
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NS_IMETHOD Suspend();
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NS_IMETHOD Resume();
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// nsIChannel
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NS_IMETHOD GetSecurityInfo(nsISupports **aSecurityInfo);
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NS_IMETHOD AsyncOpen(nsIStreamListener *listener, nsISupports *aContext);
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// nsIHttpChannelInternal
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NS_IMETHOD SetupFallbackChannel(const char *aFallbackKey);
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// nsISupportsPriority
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NS_IMETHOD SetPriority(PRInt32 value);
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// nsIResumableChannel
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NS_IMETHOD ResumeAt(PRUint64 startPos, const nsACString& entityID);
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public: /* internal necko use only */
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void InternalSetUploadStream(nsIInputStream *uploadStream)
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{ mUploadStream = uploadStream; }
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void SetUploadStreamHasHeaders(bool hasHeaders)
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{ mUploadStreamHasHeaders = hasHeaders; }
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nsresult SetReferrerInternal(nsIURI *referrer) {
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nsCAutoString spec;
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nsresult rv = referrer->GetAsciiSpec(spec);
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if (NS_FAILED(rv)) return rv;
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mReferrer = referrer;
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mRequestHead.SetHeader(nsHttp::Referer, spec);
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return NS_OK;
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}
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// This allows cache entry to be marked as foreign even after channel itself
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// is gone. Needed for e10s (see HttpChannelParent::RecvDocumentChannelCleanup)
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class OfflineCacheEntryAsForeignMarker {
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nsCOMPtr<nsIApplicationCache> mApplicationCache;
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nsCString mCacheKey;
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public:
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OfflineCacheEntryAsForeignMarker(nsIApplicationCache* appCache,
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const nsCSubstring& key)
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: mApplicationCache(appCache)
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, mCacheKey(key)
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{}
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nsresult MarkAsForeign();
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};
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OfflineCacheEntryAsForeignMarker* GetOfflineCacheEntryAsForeignMarker();
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/**
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* Returns true if this channel is operating in private browsing mode,
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* false otherwise.
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*/
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bool UsingPrivateBrowsing() {
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bool usingPB;
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GetUsingPrivateBrowsing(&usingPB);
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return usingPB;
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}
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private:
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typedef nsresult (nsHttpChannel::*nsContinueRedirectionFunc)(nsresult result);
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bool RequestIsConditional();
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nsresult Connect(bool firstTime = true);
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void SpeculativeConnect();
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nsresult SetupTransaction();
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nsresult CallOnStartRequest();
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nsresult ProcessResponse();
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nsresult ContinueProcessResponse(nsresult);
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nsresult ProcessNormal();
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nsresult ContinueProcessNormal(nsresult);
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nsresult ProcessNotModified();
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nsresult AsyncProcessRedirection(PRUint32 httpStatus);
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nsresult ContinueProcessRedirection(nsresult);
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nsresult ContinueProcessRedirectionAfterFallback(nsresult);
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bool ShouldSSLProxyResponseContinue(PRUint32 httpStatus);
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nsresult ProcessFailedSSLConnect(PRUint32 httpStatus);
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nsresult ProcessFallback(bool *waitingForRedirectCallback);
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nsresult ContinueProcessFallback(nsresult);
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bool ResponseWouldVary();
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void HandleAsyncAbort();
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nsresult EnsureAssocReq();
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nsresult ContinueOnStartRequest1(nsresult);
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nsresult ContinueOnStartRequest2(nsresult);
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nsresult ContinueOnStartRequest3(nsresult);
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// redirection specific methods
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void HandleAsyncRedirect();
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nsresult ContinueHandleAsyncRedirect(nsresult);
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void HandleAsyncNotModified();
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void HandleAsyncFallback();
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nsresult ContinueHandleAsyncFallback(nsresult);
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nsresult PromptTempRedirect();
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virtual nsresult SetupReplacementChannel(nsIURI *, nsIChannel *,
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bool preserveMethod,
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bool forProxy);
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// proxy specific methods
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nsresult ProxyFailover();
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nsresult AsyncDoReplaceWithProxy(nsIProxyInfo *);
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nsresult ContinueDoReplaceWithProxy(nsresult);
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void HandleAsyncReplaceWithProxy();
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nsresult ContinueHandleAsyncReplaceWithProxy(nsresult);
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nsresult ResolveProxy();
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// cache specific methods
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nsresult OpenCacheEntry();
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nsresult OnOfflineCacheEntryAvailable(nsICacheEntryDescriptor *aEntry,
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nsCacheAccessMode aAccess,
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nsresult aResult);
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nsresult OpenNormalCacheEntry();
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nsresult OnNormalCacheEntryAvailable(nsICacheEntryDescriptor *aEntry,
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nsCacheAccessMode aAccess,
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nsresult aResult);
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nsresult OpenOfflineCacheEntryForWriting();
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nsresult OnOfflineCacheEntryForWritingAvailable(
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nsICacheEntryDescriptor *aEntry,
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nsCacheAccessMode aAccess,
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nsresult aResult);
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nsresult OnCacheEntryAvailableInternal(nsICacheEntryDescriptor *entry,
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nsCacheAccessMode access,
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nsresult status);
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nsresult GenerateCacheKey(PRUint32 postID, nsACString &key);
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nsresult UpdateExpirationTime();
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nsresult CheckCache();
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nsresult ShouldUpdateOfflineCacheEntry(bool *shouldCacheForOfflineUse);
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nsresult ReadFromCache();
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void CloseCacheEntry(bool doomOnFailure);
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void CloseOfflineCacheEntry();
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nsresult InitCacheEntry();
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void UpdateInhibitPersistentCachingFlag();
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nsresult InitOfflineCacheEntry();
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nsresult AddCacheEntryHeaders(nsICacheEntryDescriptor *entry);
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nsresult StoreAuthorizationMetaData(nsICacheEntryDescriptor *entry);
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nsresult FinalizeCacheEntry();
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nsresult InstallCacheListener(PRUint32 offset = 0);
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nsresult InstallOfflineCacheListener();
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void MaybeInvalidateCacheEntryForSubsequentGet();
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nsCacheStoragePolicy DetermineStoragePolicy();
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nsresult DetermineCacheAccess(nsCacheAccessMode *_retval);
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void AsyncOnExamineCachedResponse();
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// Handle the bogus Content-Encoding Apache sometimes sends
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void ClearBogusContentEncodingIfNeeded();
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// byte range request specific methods
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nsresult SetupByteRangeRequest(PRUint32 partialLen);
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nsresult ProcessPartialContent();
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nsresult OnDoneReadingPartialCacheEntry(bool *streamDone);
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nsresult DoAuthRetry(nsAHttpConnection *);
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bool MustValidateBasedOnQueryUrl();
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void HandleAsyncRedirectChannelToHttps();
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nsresult AsyncRedirectChannelToHttps();
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nsresult ContinueAsyncRedirectChannelToHttps(nsresult rv);
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/**
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* A function that takes care of reading STS headers and enforcing STS
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* load rules. After a secure channel is erected, STS requires the channel
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* to be trusted or any STS header data on the channel is ignored.
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* This is called from ProcessResponse.
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*/
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nsresult ProcessSTSHeader();
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/**
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* Computes and returns a 64 bit encoded string holding a hash of the
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* input buffer. Input buffer must be a null-terminated string.
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*/
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nsresult Hash(const char *buf, nsACString &hash);
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void InvalidateCacheEntryForLocation(const char *location);
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void AssembleCacheKey(const char *spec, PRUint32 postID, nsACString &key);
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nsresult CreateNewURI(const char *loc, nsIURI **newURI);
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void DoInvalidateCacheEntry(nsACString &key);
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// Ref RFC2616 13.10: "invalidation... MUST only be performed if
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// the host part is the same as in the Request-URI"
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inline bool HostPartIsTheSame(nsIURI *uri) {
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nsCAutoString tmpHost1, tmpHost2;
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return (NS_SUCCEEDED(mURI->GetAsciiHost(tmpHost1)) &&
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NS_SUCCEEDED(uri->GetAsciiHost(tmpHost2)) &&
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(tmpHost1 == tmpHost2));
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}
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private:
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nsCOMPtr<nsISupports> mSecurityInfo;
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nsCOMPtr<nsICancelable> mProxyRequest;
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nsRefPtr<nsInputStreamPump> mTransactionPump;
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nsRefPtr<nsHttpTransaction> mTransaction;
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PRUint64 mLogicalOffset;
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// cache specific data
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nsCOMPtr<nsICacheEntryDescriptor> mCacheEntry;
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nsRefPtr<nsInputStreamPump> mCachePump;
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nsAutoPtr<nsHttpResponseHead> mCachedResponseHead;
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nsCacheAccessMode mCacheAccess;
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PRUint32 mPostID;
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PRUint32 mRequestTime;
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typedef nsresult (nsHttpChannel:: *nsOnCacheEntryAvailableCallback)(
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nsICacheEntryDescriptor *, nsCacheAccessMode, nsresult);
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nsOnCacheEntryAvailableCallback mOnCacheEntryAvailableCallback;
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nsCOMPtr<nsICacheEntryDescriptor> mOfflineCacheEntry;
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nsCacheAccessMode mOfflineCacheAccess;
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nsCString mOfflineCacheClientID;
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// auth specific data
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nsCOMPtr<nsIHttpChannelAuthProvider> mAuthProvider;
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// Proxy info to replace with
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nsCOMPtr<nsIProxyInfo> mTargetProxyInfo;
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// If the channel is associated with a cache, and the URI matched
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// a fallback namespace, this will hold the key for the fallback
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// cache entry.
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nsCString mFallbackKey;
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friend class AutoRedirectVetoNotifier;
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friend class HttpAsyncAborter<nsHttpChannel>;
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nsCOMPtr<nsIURI> mRedirectURI;
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nsCOMPtr<nsIChannel> mRedirectChannel;
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PRUint32 mRedirectType;
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// state flags
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PRUint32 mCachedContentIsValid : 1;
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PRUint32 mCachedContentIsPartial : 1;
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PRUint32 mTransactionReplaced : 1;
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PRUint32 mAuthRetryPending : 1;
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PRUint32 mResuming : 1;
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PRUint32 mInitedCacheEntry : 1;
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PRUint32 mCacheForOfflineUse : 1;
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// True if we are loading a fallback cache entry from the
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// application cache.
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PRUint32 mFallbackChannel : 1;
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// True if consumer added its own If-None-Match or If-Modified-Since
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// headers. In such a case we must not override them in the cache code
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// and also we want to pass possible 304 code response through.
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PRUint32 mCustomConditionalRequest : 1;
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PRUint32 mFallingBack : 1;
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PRUint32 mWaitingForRedirectCallback : 1;
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// True if mRequestTime has been set. In such a case it is safe to update
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// the cache entry's expiration time. Otherwise, it is not(see bug 567360).
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PRUint32 mRequestTimeInitialized : 1;
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nsTArray<nsContinueRedirectionFunc> mRedirectFuncStack;
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nsCOMPtr<nsICryptoHash> mHasher;
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PRTime mChannelCreationTime;
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mozilla::TimeStamp mChannelCreationTimestamp;
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mozilla::TimeStamp mAsyncOpenTime;
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mozilla::TimeStamp mCacheReadStart;
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mozilla::TimeStamp mCacheReadEnd;
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// copied from the transaction before we null out mTransaction
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// so that the timing can still be queried from OnStopRequest
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TimingStruct mTransactionTimings;
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// Needed for accurate DNS timing
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nsRefPtr<nsDNSPrefetch> mDNSPrefetch;
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nsresult WaitForRedirectCallback();
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void PushRedirectAsyncFunc(nsContinueRedirectionFunc func);
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void PopRedirectAsyncFunc(nsContinueRedirectionFunc func);
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protected:
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virtual void DoNotifyListenerCleanup();
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private: // cache telemetry
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enum {
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kCacheHit = 1,
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kCacheHitViaReval = 2,
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kCacheMissedViaReval = 3,
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kCacheMissed = 4
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};
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bool mDidReval;
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};
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#endif // nsHttpChannel_h__
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