550 lines
22 KiB
C++
550 lines
22 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 "nsTArray.h"
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#include "nsIPackagedAppChannelListener.h"
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#include "nsICachingChannel.h"
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#include "nsICacheEntry.h"
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#include "nsICacheEntryOpenCallback.h"
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#include "nsIDNSListener.h"
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#include "nsIApplicationCacheChannel.h"
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#include "nsIProtocolProxyCallback.h"
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#include "nsIHttpAuthenticableChannel.h"
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#include "nsIAsyncVerifyRedirectCallback.h"
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#include "nsIThreadRetargetableRequest.h"
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#include "nsIThreadRetargetableStreamListener.h"
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#include "nsWeakReference.h"
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#include "TimingStruct.h"
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#include "AutoClose.h"
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#include "nsIStreamListener.h"
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#include "nsISupportsPrimitives.h"
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#include "nsICorsPreflightCallback.h"
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class nsDNSPrefetch;
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class nsICancelable;
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class nsIHttpChannelAuthProvider;
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class nsInputStreamPump;
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class nsISSLStatus;
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namespace mozilla { namespace net {
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class Http2PushedStream;
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class HttpChannelSecurityWarningReporter
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{
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public:
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virtual nsresult ReportSecurityMessage(const nsAString& aMessageTag,
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const nsAString& aMessageCategory) = 0;
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};
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//-----------------------------------------------------------------------------
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// nsHttpChannel
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//-----------------------------------------------------------------------------
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// Use to support QI nsIChannel to nsHttpChannel
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#define NS_HTTPCHANNEL_IID \
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{ \
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0x301bf95b, \
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0x7bb3, \
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0x4ae1, \
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{0xa9, 0x71, 0x40, 0xbc, 0xfa, 0x81, 0xde, 0x12} \
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}
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class nsHttpChannel final : public HttpBaseChannel
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, public HttpAsyncAborter<nsHttpChannel>
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, public nsIStreamListener
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, public nsIPackagedAppChannelListener
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, public nsICachingChannel
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, public nsICacheEntryOpenCallback
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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 nsIThreadRetargetableRequest
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, public nsIThreadRetargetableStreamListener
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, public nsIDNSListener
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, public nsSupportsWeakReference
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, public nsICorsPreflightCallback
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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_NSIPACKAGEDAPPCHANNELLISTENER
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NS_DECL_NSITHREADRETARGETABLESTREAMLISTENER
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NS_DECL_NSICACHEINFOCHANNEL
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NS_DECL_NSICACHINGCHANNEL
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NS_DECL_NSICACHEENTRYOPENCALLBACK
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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_NSITHREADRETARGETABLEREQUEST
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NS_DECL_NSIDNSLISTENER
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_HTTPCHANNEL_IID)
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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) override;
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NS_IMETHOD GetProxyMethodIsConnect(bool *aProxyMethodIsConnect) override;
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NS_IMETHOD GetServerResponseHeader(nsACString & aServerResponseHeader) override;
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NS_IMETHOD GetProxyChallenges(nsACString & aChallenges) override;
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NS_IMETHOD GetWWWChallenges(nsACString & aChallenges) override;
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NS_IMETHOD SetProxyCredentials(const nsACString & aCredentials) override;
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NS_IMETHOD SetWWWCredentials(const nsACString & aCredentials) override;
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NS_IMETHOD OnAuthAvailable() override;
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NS_IMETHOD OnAuthCancelled(bool userCancel) override;
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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) override;
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NS_IMETHOD GetURI(nsIURI **aURI) override;
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NS_IMETHOD GetNotificationCallbacks(nsIInterfaceRequestor **aCallbacks) override;
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NS_IMETHOD GetLoadGroup(nsILoadGroup **aLoadGroup) override;
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NS_IMETHOD GetRequestMethod(nsACString& aMethod) override;
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nsHttpChannel();
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virtual nsresult Init(nsIURI *aURI, uint32_t aCaps, nsProxyInfo *aProxyInfo,
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uint32_t aProxyResolveFlags,
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nsIURI *aProxyURI) override;
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nsresult OnPush(const nsACString &uri, Http2PushedStream *pushedStream);
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static bool IsRedirectStatus(uint32_t status);
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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) override;
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NS_IMETHOD Suspend() override;
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NS_IMETHOD Resume() override;
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// nsIChannel
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NS_IMETHOD GetSecurityInfo(nsISupports **aSecurityInfo) override;
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NS_IMETHOD AsyncOpen(nsIStreamListener *listener, nsISupports *aContext) override;
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NS_IMETHOD AsyncOpen2(nsIStreamListener *aListener) override;
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// nsIHttpChannel
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NS_IMETHOD GetEncodedBodySize(uint64_t *aEncodedBodySize) override;
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// nsIHttpChannelInternal
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NS_IMETHOD SetupFallbackChannel(const char *aFallbackKey) override;
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NS_IMETHOD ForceIntercepted(uint64_t aInterceptionID) override;
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// nsISupportsPriority
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NS_IMETHOD SetPriority(int32_t value) override;
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// nsIClassOfService
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NS_IMETHOD SetClassFlags(uint32_t inFlags) override;
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NS_IMETHOD AddClassFlags(uint32_t inFlags) override;
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NS_IMETHOD ClearClassFlags(uint32_t inFlags) override;
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// nsIResumableChannel
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NS_IMETHOD ResumeAt(uint64_t startPos, const nsACString& entityID) override;
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NS_IMETHOD SetNotificationCallbacks(nsIInterfaceRequestor *aCallbacks) override;
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NS_IMETHOD SetLoadGroup(nsILoadGroup *aLoadGroup) override;
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// nsITimedChannel
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NS_IMETHOD GetDomainLookupStart(mozilla::TimeStamp *aDomainLookupStart) override;
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NS_IMETHOD GetDomainLookupEnd(mozilla::TimeStamp *aDomainLookupEnd) override;
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NS_IMETHOD GetConnectStart(mozilla::TimeStamp *aConnectStart) override;
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NS_IMETHOD GetConnectEnd(mozilla::TimeStamp *aConnectEnd) override;
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NS_IMETHOD GetRequestStart(mozilla::TimeStamp *aRequestStart) override;
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NS_IMETHOD GetResponseStart(mozilla::TimeStamp *aResponseStart) override;
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NS_IMETHOD GetResponseEnd(mozilla::TimeStamp *aResponseEnd) override;
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// nsICorsPreflightCallback
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NS_IMETHOD OnPreflightSucceeded() override;
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NS_IMETHOD OnPreflightFailed(nsresult aError) override;
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nsresult AddSecurityMessage(const nsAString& aMessageTag,
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const nsAString& aMessageCategory) override;
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void SetWarningReporter(HttpChannelSecurityWarningReporter* aReporter)
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{ mWarningReporter = aReporter; }
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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 SetReferrerWithPolicyInternal(nsIURI *referrer,
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uint32_t referrerPolicy) {
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nsAutoCString 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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mReferrerPolicy = referrerPolicy;
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mRequestHead.SetHeader(nsHttp::Referer, spec);
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return NS_OK;
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}
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nsresult SetTopWindowURI(nsIURI* aTopWindowURI) {
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mTopWindowURI = aTopWindowURI;
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return NS_OK;
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}
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uint32_t GetRequestTime() const
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{
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return mRequestTime;
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}
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nsresult OpenCacheEntry(bool usingSSL);
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nsresult ContinueConnect();
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nsresult StartRedirectChannelToURI(nsIURI *, uint32_t);
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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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nsCOMPtr<nsIURI> mCacheURI;
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public:
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OfflineCacheEntryAsForeignMarker(nsIApplicationCache* appCache,
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nsIURI* aURI)
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: mApplicationCache(appCache)
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, mCacheURI(aURI)
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{}
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nsresult MarkAsForeign();
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};
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OfflineCacheEntryAsForeignMarker* GetOfflineCacheEntryAsForeignMarker();
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// Helper to keep cache callbacks wait flags consistent
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class AutoCacheWaitFlags
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{
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public:
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explicit AutoCacheWaitFlags(nsHttpChannel* channel)
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: mChannel(channel)
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, mKeep(0)
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{
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// Flags must be set before entering any AsyncOpenCacheEntry call.
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mChannel->mCacheEntriesToWaitFor =
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nsHttpChannel::WAIT_FOR_CACHE_ENTRY |
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nsHttpChannel::WAIT_FOR_OFFLINE_CACHE_ENTRY;
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}
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void Keep(uint32_t flags)
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{
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// Called after successful call to appropriate AsyncOpenCacheEntry call.
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mKeep |= flags;
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}
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~AutoCacheWaitFlags()
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{
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// Keep only flags those are left to be wait for.
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mChannel->mCacheEntriesToWaitFor &= mKeep;
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}
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private:
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nsHttpChannel* mChannel;
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uint32_t mKeep : 2;
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};
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void MarkIntercepted();
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NS_IMETHOD GetResponseSynthesized(bool* aSynthesized) override;
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bool AwaitingCacheCallbacks();
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void SetCouldBeSynthesized();
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protected:
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virtual ~nsHttpChannel();
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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 BeginConnect();
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nsresult ContinueBeginConnectWithResult();
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void ContinueBeginConnect();
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nsresult Connect();
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void SpeculativeConnect();
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nsresult SetupTransaction();
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void SetupTransactionSchedulingContext();
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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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void ProcessAltService();
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nsresult ProcessNotModified();
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nsresult AsyncProcessRedirection(uint32_t httpStatus);
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nsresult ContinueProcessRedirection(nsresult);
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nsresult ContinueProcessRedirectionAfterFallback(nsresult);
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nsresult ProcessFailedProxyConnect(uint32_t httpStatus);
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nsresult ProcessFallback(bool *waitingForRedirectCallback);
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nsresult ContinueProcessFallback(nsresult);
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void HandleAsyncAbort();
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nsresult EnsureAssocReq();
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void ProcessSSLInformation();
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bool IsHTTPS();
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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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void HandleAsyncAPIRedirect();
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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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uint32_t redirectFlags) override;
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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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nsresult ResolveProxy();
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// cache specific methods
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nsresult OnOfflineCacheEntryAvailable(nsICacheEntry *aEntry,
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bool aNew,
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nsIApplicationCache* aAppCache,
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nsresult aResult);
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nsresult OnNormalCacheEntryAvailable(nsICacheEntry *aEntry,
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bool aNew,
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nsresult aResult);
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nsresult OpenOfflineCacheEntryForWriting();
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nsresult OnOfflineCacheEntryForWritingAvailable(nsICacheEntry *aEntry,
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nsIApplicationCache* aAppCache,
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nsresult aResult);
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nsresult OnCacheEntryAvailableInternal(nsICacheEntry *entry,
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bool aNew,
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nsIApplicationCache* aAppCache,
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nsresult status);
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nsresult GenerateCacheKey(uint32_t postID, nsACString &key);
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nsresult UpdateExpirationTime();
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nsresult CheckPartial(nsICacheEntry* aEntry, int64_t *aSize, int64_t *aContentLength);
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bool ShouldUpdateOfflineCacheEntry();
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nsresult ReadFromCache(bool alreadyMarkedValid);
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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(nsICacheEntry *entry);
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nsresult FinalizeCacheEntry();
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nsresult InstallCacheListener(int64_t offset = 0);
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nsresult InstallOfflineCacheListener(int64_t offset = 0);
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void MaybeInvalidateCacheEntryForSubsequentGet();
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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 ProcessPartialContent();
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nsresult OnDoneReadingPartialCacheEntry(bool *streamDone);
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nsresult DoAuthRetry(nsAHttpConnection *);
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void HandleAsyncRedirectChannelToHttps();
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nsresult StartRedirectChannelToHttps();
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nsresult ContinueAsyncRedirectChannelToURI(nsresult rv);
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nsresult OpenRedirectChannel(nsresult rv);
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/**
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* A function that takes care of reading STS and PKP headers and enforcing
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* STS and PKP load rules. After a secure channel is erected, STS and PKP
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* requires the channel to be trusted or any STS or PKP header data on
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* the channel is ignored. This is called from ProcessResponse.
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*/
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nsresult ProcessSecurityHeaders();
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/**
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* A function to process a single security header (STS or PKP), assumes
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* some basic sanity checks have been applied to the channel. Called
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* from ProcessSecurityHeaders.
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*/
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nsresult ProcessSingleSecurityHeader(uint32_t aType,
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nsISSLStatus *aSSLStatus,
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uint32_t aFlags);
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void InvalidateCacheEntryForLocation(const char *location);
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void AssembleCacheKey(const char *spec, uint32_t postID, nsACString &key);
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nsresult CreateNewURI(const char *loc, nsIURI **newURI);
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void DoInvalidateCacheEntry(nsIURI* aURI);
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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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nsAutoCString 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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inline static bool DoNotRender3xxBody(nsresult rv) {
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return rv == NS_ERROR_REDIRECT_LOOP ||
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rv == NS_ERROR_CORRUPTED_CONTENT ||
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rv == NS_ERROR_UNKNOWN_PROTOCOL ||
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rv == NS_ERROR_MALFORMED_URI;
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}
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// Create a aggregate set of the current notification callbacks
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// and ensure the transaction is updated to use it.
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void UpdateAggregateCallbacks();
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static bool HasQueryString(nsHttpRequestHead::ParsedMethodType method, nsIURI * uri);
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bool ResponseWouldVary(nsICacheEntry* entry) const;
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bool IsResumable(int64_t partialLen, int64_t contentLength,
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bool ignoreMissingPartialLen = false) const;
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nsresult MaybeSetupByteRangeRequest(int64_t partialLen, int64_t contentLength,
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bool ignoreMissingPartialLen = false);
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nsresult SetupByteRangeRequest(int64_t partialLen);
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void UntieByteRangeRequest();
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void UntieValidationRequest();
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nsresult OpenCacheInputStream(nsICacheEntry* cacheEntry, bool startBuffering,
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bool checkingAppCacheEntry);
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void SetPushedStream(Http2PushedStream *stream);
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void MaybeWarnAboutAppCache();
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private:
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nsCOMPtr<nsICancelable> mProxyRequest;
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RefPtr<nsInputStreamPump> mTransactionPump;
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RefPtr<nsHttpTransaction> mTransaction;
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uint64_t mLogicalOffset;
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// cache specific data
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nsCOMPtr<nsICacheEntry> mCacheEntry;
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// We must close mCacheInputStream explicitly to avoid leaks.
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AutoClose<nsIInputStream> mCacheInputStream;
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RefPtr<nsInputStreamPump> mCachePump;
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nsAutoPtr<nsHttpResponseHead> mCachedResponseHead;
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nsCOMPtr<nsISupports> mCachedSecurityInfo;
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uint32_t mPostID;
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uint32_t mRequestTime;
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nsCOMPtr<nsICacheEntry> mOfflineCacheEntry;
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uint32_t mOfflineCacheLastModifiedTime;
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nsCOMPtr<nsIApplicationCache> mApplicationCacheForWrite;
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// auth specific data
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nsCOMPtr<nsIHttpChannelAuthProvider> mAuthProvider;
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// States of channel interception
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enum {
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DO_NOT_INTERCEPT, // no interception will occur
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MAYBE_INTERCEPT, // interception in progress, but can be cancelled
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INTERCEPTED, // a synthesized response has been provided
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} mInterceptCache;
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// ID of this channel for the interception purposes. Unique unless this
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// channel is replacing an intercepted one via an redirection.
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uint64_t mInterceptionID;
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bool PossiblyIntercepted() {
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return mInterceptCache != DO_NOT_INTERCEPT;
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}
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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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uint32_t mRedirectType;
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static const uint32_t WAIT_FOR_CACHE_ENTRY = 1;
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static const uint32_t WAIT_FOR_OFFLINE_CACHE_ENTRY = 2;
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// state flags
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uint32_t mCachedContentIsValid : 1;
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uint32_t mCachedContentIsPartial : 1;
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uint32_t mCacheOnlyMetadata : 1;
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uint32_t mTransactionReplaced : 1;
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uint32_t mAuthRetryPending : 1;
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uint32_t mProxyAuthPending : 1;
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uint32_t mResuming : 1;
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uint32_t mInitedCacheEntry : 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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uint32_t mFallbackChannel : 1;
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// True if consumer added its own If-None-Match or If-Modified-Since
|
|
// headers. In such a case we must not override them in the cache code
|
|
// and also we want to pass possible 304 code response through.
|
|
uint32_t mCustomConditionalRequest : 1;
|
|
uint32_t mFallingBack : 1;
|
|
uint32_t mWaitingForRedirectCallback : 1;
|
|
// True if mRequestTime has been set. In such a case it is safe to update
|
|
// the cache entry's expiration time. Otherwise, it is not(see bug 567360).
|
|
uint32_t mRequestTimeInitialized : 1;
|
|
uint32_t mCacheEntryIsReadOnly : 1;
|
|
uint32_t mCacheEntryIsWriteOnly : 1;
|
|
// see WAIT_FOR_* constants above
|
|
uint32_t mCacheEntriesToWaitFor : 2;
|
|
uint32_t mHasQueryString : 1;
|
|
// whether cache entry data write was in progress during cache entry check
|
|
// when true, after we finish read from cache we must check all data
|
|
// had been loaded from cache. If not, then an error has to be propagated
|
|
// to the consumer.
|
|
uint32_t mConcurentCacheAccess : 1;
|
|
// whether the request is setup be byte-range
|
|
uint32_t mIsPartialRequest : 1;
|
|
// true iff there is AutoRedirectVetoNotifier on the stack
|
|
uint32_t mHasAutoRedirectVetoNotifier : 1;
|
|
// consumers set this to true to use cache pinning, this has effect
|
|
// only when the channel is in an app context (load context has an appid)
|
|
uint32_t mPinCacheContent : 1;
|
|
// Whether fetching the content is meant to be handled by the
|
|
// packaged app service, which behaves like a caching layer.
|
|
// Upon successfully fetching the package, the resource will be placed in
|
|
// the cache, and served by calling OnCacheEntryAvailable.
|
|
uint32_t mIsPackagedAppResource : 1;
|
|
// True if CORS preflight has been performed
|
|
uint32_t mIsCorsPreflightDone : 1;
|
|
|
|
nsCOMPtr<nsIChannel> mPreflightChannel;
|
|
|
|
nsTArray<nsContinueRedirectionFunc> mRedirectFuncStack;
|
|
|
|
// Needed for accurate DNS timing
|
|
RefPtr<nsDNSPrefetch> mDNSPrefetch;
|
|
|
|
Http2PushedStream *mPushedStream;
|
|
// True if the channel's principal was found on a phishing, malware, or
|
|
// tracking (if tracking protection is enabled) blocklist
|
|
bool mLocalBlocklist;
|
|
|
|
nsresult WaitForRedirectCallback();
|
|
void PushRedirectAsyncFunc(nsContinueRedirectionFunc func);
|
|
void PopRedirectAsyncFunc(nsContinueRedirectionFunc func);
|
|
|
|
nsCString mUsername;
|
|
|
|
// If non-null, warnings should be reported to this object.
|
|
HttpChannelSecurityWarningReporter* mWarningReporter;
|
|
protected:
|
|
virtual void DoNotifyListenerCleanup() override;
|
|
|
|
private: // cache telemetry
|
|
bool mDidReval;
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(nsHttpChannel, NS_HTTPCHANNEL_IID)
|
|
} // namespace net
|
|
} // namespace mozilla
|
|
|
|
#endif // nsHttpChannel_h__
|