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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set sw=2 ts=8 et tw=80 : */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_net_HttpBaseChannel_h

#define mozilla_net_HttpBaseChannel_h

#include <utility>

#include "OpaqueResponseUtils.h"

#include "mozilla/AtomicBitfields.h"

#include "mozilla/Atomics.h"

#include "mozilla/CompactPair.h"

#include "mozilla/dom/DOMTypes.h"

#include "mozilla/DataMutex.h"

#include <mozilla/Maybe.h>

#include "mozilla/net/DNS.h"

#include "mozilla/net/NeckoChannelParams.h"

#include "mozilla/net/NeckoCommon.h"

#include "mozilla/net/PrivateBrowsingChannel.h"

#include "nsCOMPtr.h"

#include "nsHashPropertyBag.h"

#include "nsHttp.h"

#include "nsHttpHandler.h"

#include "nsHttpRequestHead.h"

#include "nsIClassOfService.h"

#include "nsIClassifiedChannel.h"

#include "nsIConsoleReportCollector.h"

#include "nsIEncodedChannel.h"

#include "nsIForcePendingChannel.h"

#include "nsIFormPOSTActionChannel.h"

#include "nsIHttpChannel.h"

#include "nsIHttpChannelInternal.h"

#include "nsILoadInfo.h"

#include "nsIResumableChannel.h"

#include "nsIStringEnumerator.h"

#include "nsISupportsPriority.h"

#include "nsIThrottledInputChannel.h"

#include "nsITimedChannel.h"

#include "nsITraceableChannel.h"

#include "nsITransportSecurityInfo.h"

#include "nsIURI.h"

#include "nsIUploadChannel2.h"

#include "nsStringEnumerator.h"

#include "nsStringFwd.h"

#include "nsTArray.h"

#include "nsThreadUtils.h"

#define HTTP_BASE_CHANNEL_IID                        \

  {                                                  \

    0x9d5cde03, 0xe6e9, 0x4612, {                    \

      0xbf, 0xef, 0xbb, 0x66, 0xf3, 0xbb, 0x74, 0x46 \

    }                                                \

class nsIProgressEventSink;

class nsISecurityConsoleMessage;

class nsIPrincipal;

namespace mozilla {

namespace dom {

class PerformanceStorage;

class ContentParent;

}  // namespace dom

class LogCollector;

namespace net {

extern mozilla::LazyLogModule gHttpLog;

class OpaqueResponseBlocker;

class PreferredAlternativeDataTypeParams;

enum CacheDisposition : uint8_t {

  kCacheUnresolved = 0,

  kCacheHit = 1,

  kCacheHitViaReval = 2,

  kCacheMissedViaReval = 3,

  kCacheMissed = 4,

  kCacheUnknown = 5

};

// These need to be kept in sync with

// "browser.opaqueResponseBlocking.filterFetchResponse"

enum class OpaqueResponseFilterFetch { Never, AllowedByORB, BlockedByORB, All };

/*

 * This class is a partial implementation of nsIHttpChannel.  It contains code

 * shared by nsHttpChannel and HttpChannelChild.

 * - Note that this class has nothing to do with nsBaseChannel, which is an

 *   earlier effort at a base class for channels that somehow never made it all

 *   the way to the HTTP channel.

*/

class HttpBaseChannel : public nsHashPropertyBag,

                        public nsIEncodedChannel,

                        public nsIHttpChannel,

                        public nsIHttpChannelInternal,

                        public nsIFormPOSTActionChannel,

                        public nsIUploadChannel2,

                        public nsISupportsPriority,

                        public nsIClassOfService,

                        public nsIResumableChannel,

                        public nsITraceableChannel,

                        public PrivateBrowsingChannel<HttpBaseChannel>,

                        public nsITimedChannel,

                        public nsIForcePendingChannel,

                        public nsIConsoleReportCollector,

                        public nsIThrottledInputChannel,

                        public nsIClassifiedChannel {

 protected:

  virtual ~HttpBaseChannel();

 public:

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_NSIUPLOADCHANNEL

  NS_DECL_NSIFORMPOSTACTIONCHANNEL

  NS_DECL_NSIUPLOADCHANNEL2

  NS_DECL_NSITRACEABLECHANNEL

  NS_DECL_NSITIMEDCHANNEL

  NS_DECL_NSITHROTTLEDINPUTCHANNEL

  NS_DECL_NSICLASSIFIEDCHANNEL

  NS_DECLARE_STATIC_IID_ACCESSOR(HTTP_BASE_CHANNEL_IID)

  HttpBaseChannel();

  [[nodiscard]] virtual nsresult Init(nsIURI* aURI, uint32_t aCaps,

                                      nsProxyInfo* aProxyInfo,

                                      uint32_t aProxyResolveFlags,

                                      nsIURI* aProxyURI, uint64_t aChannelId,

                                      ExtContentPolicyType aContentPolicyType,

                                      nsILoadInfo* aLoadInfo);

  // nsIRequest

  NS_IMETHOD GetName(nsACString& aName) override;

  NS_IMETHOD IsPending(bool* aIsPending) override;

  NS_IMETHOD GetStatus(nsresult* aStatus) override;

  NS_IMETHOD GetLoadGroup(nsILoadGroup** aLoadGroup) override;

  NS_IMETHOD SetLoadGroup(nsILoadGroup* aLoadGroup) override;

  NS_IMETHOD GetLoadFlags(nsLoadFlags* aLoadFlags) override;

  NS_IMETHOD SetLoadFlags(nsLoadFlags aLoadFlags) override;

  NS_IMETHOD GetTRRMode(nsIRequest::TRRMode* aTRRMode) override;

  NS_IMETHOD SetTRRMode(nsIRequest::TRRMode aTRRMode) override;

  NS_IMETHOD SetDocshellUserAgentOverride();

  // nsIChannel

  NS_IMETHOD GetOriginalURI(nsIURI** aOriginalURI) override;

  NS_IMETHOD SetOriginalURI(nsIURI* aOriginalURI) override;

  NS_IMETHOD GetURI(nsIURI** aURI) override;

  NS_IMETHOD GetOwner(nsISupports** aOwner) override;

  NS_IMETHOD SetOwner(nsISupports* aOwner) override;

  NS_IMETHOD GetLoadInfo(nsILoadInfo** aLoadInfo) override;

  NS_IMETHOD SetLoadInfo(nsILoadInfo* aLoadInfo) override;

  NS_IMETHOD GetIsDocument(bool* aIsDocument) override;

  NS_IMETHOD GetNotificationCallbacks(

      nsIInterfaceRequestor** aCallbacks) override;

  NS_IMETHOD SetNotificationCallbacks(

      nsIInterfaceRequestor* aCallbacks) override;

  NS_IMETHOD GetContentType(nsACString& aContentType) override;

  NS_IMETHOD SetContentType(const nsACString& aContentType) override;

  NS_IMETHOD GetContentCharset(nsACString& aContentCharset) override;

  NS_IMETHOD SetContentCharset(const nsACString& aContentCharset) override;

  NS_IMETHOD GetContentDisposition(uint32_t* aContentDisposition) override;

  NS_IMETHOD SetContentDisposition(uint32_t aContentDisposition) override;

  NS_IMETHOD GetContentDispositionFilename(

      nsAString& aContentDispositionFilename) override;

  NS_IMETHOD SetContentDispositionFilename(

      const nsAString& aContentDispositionFilename) override;

  NS_IMETHOD GetContentDispositionHeader(

      nsACString& aContentDispositionHeader) override;

  NS_IMETHOD GetContentLength(int64_t* aContentLength) override;

  NS_IMETHOD SetContentLength(int64_t aContentLength) override;

  NS_IMETHOD Open(nsIInputStream** aResult) override;

  NS_IMETHOD GetBlockAuthPrompt(bool* aValue) override;

  NS_IMETHOD SetBlockAuthPrompt(bool aValue) override;

  NS_IMETHOD GetCanceled(bool* aCanceled) override;

  // nsIEncodedChannel

  NS_IMETHOD GetApplyConversion(bool* value) override;

  NS_IMETHOD SetApplyConversion(bool value) override;

  NS_IMETHOD GetContentEncodings(nsIUTF8StringEnumerator** aEncodings) override;

  NS_IMETHOD DoApplyContentConversions(nsIStreamListener* aNextListener,

                                       nsIStreamListener** aNewNextListener,

                                       nsISupports* aCtxt) override;

  NS_IMETHOD SetHasContentDecompressed(bool value) override;

  NS_IMETHOD GetHasContentDecompressed(bool* value) override;

  // HttpBaseChannel::nsIHttpChannel

  NS_IMETHOD GetRequestMethod(nsACString& aMethod) override;

  NS_IMETHOD SetRequestMethod(const nsACString& aMethod) override;

  NS_IMETHOD GetReferrerInfo(nsIReferrerInfo** aReferrerInfo) override;

  NS_IMETHOD SetReferrerInfo(nsIReferrerInfo* aReferrerInfo) override;

  NS_IMETHOD SetReferrerInfoWithoutClone(

      nsIReferrerInfo* aReferrerInfo) override;

  NS_IMETHOD GetRequestHeader(const nsACString& aHeader,

                              nsACString& aValue) override;

  NS_IMETHOD SetRequestHeader(const nsACString& aHeader,

                              const nsACString& aValue, bool aMerge) override;

  NS_IMETHOD SetNewReferrerInfo(const nsACString& aUrl,

                                nsIReferrerInfo::ReferrerPolicyIDL aPolicy,

                                bool aSendReferrer) override;

  NS_IMETHOD SetEmptyRequestHeader(const nsACString& aHeader) override;

  NS_IMETHOD VisitRequestHeaders(nsIHttpHeaderVisitor* visitor) override;

  NS_IMETHOD VisitNonDefaultRequestHeaders(

      nsIHttpHeaderVisitor* visitor) override;

  NS_IMETHOD ShouldStripRequestBodyHeader(const nsACString& aMethod,

                                          bool* aResult) override;

  NS_IMETHOD GetResponseHeader(const nsACString& header,

                               nsACString& value) override;

  NS_IMETHOD SetResponseHeader(const nsACString& header,

                               const nsACString& value, bool merge) override;

  NS_IMETHOD VisitResponseHeaders(nsIHttpHeaderVisitor* visitor) override;

  NS_IMETHOD GetOriginalResponseHeader(const nsACString& aHeader,

                                       nsIHttpHeaderVisitor* aVisitor) override;

  NS_IMETHOD VisitOriginalResponseHeaders(

      nsIHttpHeaderVisitor* aVisitor) override;

  NS_IMETHOD GetAllowSTS(bool* value) override;

  NS_IMETHOD SetAllowSTS(bool value) override;

  NS_IMETHOD GetRedirectionLimit(uint32_t* value) override;

  NS_IMETHOD SetRedirectionLimit(uint32_t value) override;

  NS_IMETHOD IsNoStoreResponse(bool* value) override;

  NS_IMETHOD IsNoCacheResponse(bool* value) override;

  NS_IMETHOD IsPrivateResponse(bool* value) override;

  NS_IMETHOD GetResponseStatus(uint32_t* aValue) override;

  NS_IMETHOD GetResponseStatusText(nsACString& aValue) override;

  NS_IMETHOD GetRequestSucceeded(bool* aValue) override;

  NS_IMETHOD RedirectTo(nsIURI* newURI) override;

  NS_IMETHOD TransparentRedirectTo(nsIURI* newURI) override;

  NS_IMETHOD UpgradeToSecure() override;

  NS_IMETHOD GetRequestObserversCalled(bool* aCalled) override;

  NS_IMETHOD SetRequestObserversCalled(bool aCalled) override;

  NS_IMETHOD GetRequestContextID(uint64_t* aRCID) override;

  NS_IMETHOD GetTransferSize(uint64_t* aTransferSize) override;

  NS_IMETHOD GetRequestSize(uint64_t* aRequestSize) override;

  NS_IMETHOD GetDecodedBodySize(uint64_t* aDecodedBodySize) override;

  NS_IMETHOD GetEncodedBodySize(uint64_t* aEncodedBodySize) override;

  NS_IMETHOD GetSupportsHTTP3(bool* aSupportsHTTP3) override;

  NS_IMETHOD GetHasHTTPSRR(bool* aHasHTTPSRR) override;

  NS_IMETHOD SetRequestContextID(uint64_t aRCID) override;

  NS_IMETHOD GetIsMainDocumentChannel(bool* aValue) override;

  NS_IMETHOD SetIsMainDocumentChannel(bool aValue) override;

  NS_IMETHOD GetProtocolVersion(nsACString& aProtocolVersion) override;

  NS_IMETHOD GetChannelId(uint64_t* aChannelId) override;

  NS_IMETHOD SetChannelId(uint64_t aChannelId) override;

  NS_IMETHOD GetTopLevelContentWindowId(uint64_t* aContentWindowId) override;

  NS_IMETHOD SetTopLevelContentWindowId(uint64_t aContentWindowId) override;

  NS_IMETHOD GetBrowserId(uint64_t* aId) override;

  NS_IMETHOD SetBrowserId(uint64_t aId) override;

  NS_IMETHOD GetIsProxyUsed(bool* aIsProxyUsed) override;

  using nsIClassifiedChannel::IsThirdPartyTrackingResource;

  virtual void SetSource(UniquePtr<ProfileChunkedBuffer> aSource) override {

    mSource = std::move(aSource);

  // nsIHttpChannelInternal

  NS_IMETHOD GetDocumentURI(nsIURI** aDocumentURI) override;

  NS_IMETHOD SetDocumentURI(nsIURI* aDocumentURI) override;

  NS_IMETHOD GetRequestVersion(uint32_t* major, uint32_t* minor) override;

  NS_IMETHOD GetResponseVersion(uint32_t* major, uint32_t* minor) override;

  NS_IMETHOD SetCookie(const nsACString& aCookieHeader) override;

  NS_IMETHOD GetThirdPartyFlags(uint32_t* aForce) override;

  NS_IMETHOD SetThirdPartyFlags(uint32_t aForce) override;

  NS_IMETHOD GetForceAllowThirdPartyCookie(bool* aForce) override;

  NS_IMETHOD SetForceAllowThirdPartyCookie(bool aForce) override;

  NS_IMETHOD GetChannelIsForDownload(bool* aChannelIsForDownload) override;

  NS_IMETHOD SetChannelIsForDownload(bool aChannelIsForDownload) override;

  NS_IMETHOD SetCacheKeysRedirectChain(nsTArray<nsCString>* cacheKeys) override;

  NS_IMETHOD GetLocalAddress(nsACString& addr) override;

  NS_IMETHOD GetLocalPort(int32_t* port) override;

  NS_IMETHOD GetRemoteAddress(nsACString& addr) override;

  NS_IMETHOD GetRemotePort(int32_t* port) override;

  NS_IMETHOD GetOnlyConnect(bool* aOnlyConnect) override;

  NS_IMETHOD SetConnectOnly(bool aTlsTunnel) override;

  NS_IMETHOD GetAllowSpdy(bool* aAllowSpdy) override;

  NS_IMETHOD SetAllowSpdy(bool aAllowSpdy) override;

  NS_IMETHOD GetAllowHttp3(bool* aAllowHttp3) override;

  NS_IMETHOD SetAllowHttp3(bool aAllowHttp3) override;

  NS_IMETHOD GetAllowAltSvc(bool* aAllowAltSvc) override;

  NS_IMETHOD SetAllowAltSvc(bool aAllowAltSvc) override;

  NS_IMETHOD GetBeConservative(bool* aBeConservative) override;

  NS_IMETHOD SetBeConservative(bool aBeConservative) override;

  NS_IMETHOD GetBypassProxy(bool* aBypassProxy) override;

  NS_IMETHOD SetBypassProxy(bool aBypassProxy) override;

  bool BypassProxy();

  NS_IMETHOD GetIsTRRServiceChannel(bool* aTRR) override;

  NS_IMETHOD SetIsTRRServiceChannel(bool aTRR) override;

  NS_IMETHOD GetIsResolvedByTRR(bool* aResolvedByTRR) override;

  NS_IMETHOD GetEffectiveTRRMode(

      nsIRequest::TRRMode* aEffectiveTRRMode) override;

  NS_IMETHOD GetTrrSkipReason(nsITRRSkipReason::value* aTrrSkipReason) override;

  NS_IMETHOD GetIsLoadedBySocketProcess(bool* aResult) override;

  NS_IMETHOD GetIsOCSP(bool* value) override;

  NS_IMETHOD SetIsOCSP(bool value) override;

  NS_IMETHOD GetTlsFlags(uint32_t* aTlsFlags) override;

  NS_IMETHOD SetTlsFlags(uint32_t aTlsFlags) override;

  NS_IMETHOD GetApiRedirectToURI(nsIURI** aApiRedirectToURI) override;

  [[nodiscard]] virtual nsresult AddSecurityMessage(

      const nsAString& aMessageTag, const nsAString& aMessageCategory);

  NS_IMETHOD TakeAllSecurityMessages(

      nsCOMArray<nsISecurityConsoleMessage>& aMessages) override;

  NS_IMETHOD GetResponseTimeoutEnabled(bool* aEnable) override;

  NS_IMETHOD SetResponseTimeoutEnabled(bool aEnable) override;

  NS_IMETHOD GetInitialRwin(uint32_t* aRwin) override;

  NS_IMETHOD SetInitialRwin(uint32_t aRwin) override;

  NS_IMETHOD ForcePending(bool aForcePending) override;

  NS_IMETHOD GetLastModifiedTime(PRTime* lastModifiedTime) override;

  NS_IMETHOD GetCorsIncludeCredentials(bool* aInclude) override;

  NS_IMETHOD SetCorsIncludeCredentials(bool aInclude) override;

  NS_IMETHOD GetRequestMode(dom::RequestMode* aRequestMode) override;

  NS_IMETHOD SetRequestMode(dom::RequestMode aRequestMode) override;

  NS_IMETHOD GetRedirectMode(uint32_t* aRedirectMode) override;

  NS_IMETHOD SetRedirectMode(uint32_t aRedirectMode) override;

  NS_IMETHOD GetFetchCacheMode(uint32_t* aFetchCacheMode) override;

  NS_IMETHOD SetFetchCacheMode(uint32_t aFetchCacheMode) override;

  NS_IMETHOD GetTopWindowURI(nsIURI** aTopWindowURI) override;

  NS_IMETHOD SetTopWindowURIIfUnknown(nsIURI* aTopWindowURI) override;

  NS_IMETHOD GetProxyURI(nsIURI** proxyURI) override;

  virtual void SetCorsPreflightParameters(

      const nsTArray<nsCString>& unsafeHeaders,

      bool aShouldStripRequestBodyHeader, bool aShouldStripAuthHeader) override;

  virtual void SetAltDataForChild(bool aIsForChild) override;

  virtual void DisableAltDataCache() override {

    StoreDisableAltDataCache(true);

};

  NS_IMETHOD GetConnectionInfoHashKey(

      nsACString& aConnectionInfoHashKey) override;

  NS_IMETHOD GetIntegrityMetadata(nsAString& aIntegrityMetadata) override;

  NS_IMETHOD SetIntegrityMetadata(const nsAString& aIntegrityMetadata) override;

  NS_IMETHOD GetLastRedirectFlags(uint32_t* aValue) override;

  NS_IMETHOD SetLastRedirectFlags(uint32_t aValue) override;

  NS_IMETHOD GetNavigationStartTimeStamp(TimeStamp* aTimeStamp) override;

  NS_IMETHOD SetNavigationStartTimeStamp(TimeStamp aTimeStamp) override;

  NS_IMETHOD CancelByURLClassifier(nsresult aErrorCode) override;

  NS_IMETHOD SetIPv4Disabled(void) override;

  NS_IMETHOD SetIPv6Disabled(void) override;

  NS_IMETHOD GetCrossOriginOpenerPolicy(

      nsILoadInfo::CrossOriginOpenerPolicy* aCrossOriginOpenerPolicy) override;

  NS_IMETHOD ComputeCrossOriginOpenerPolicy(

      nsILoadInfo::CrossOriginOpenerPolicy aInitiatorPolicy,

      nsILoadInfo::CrossOriginOpenerPolicy* aOutPolicy) override;

  NS_IMETHOD HasCrossOriginOpenerPolicyMismatch(bool* aIsMismatch) override;

  NS_IMETHOD GetResponseEmbedderPolicy(

      bool aIsOriginTrialCoepCredentiallessEnabled,

      nsILoadInfo::CrossOriginEmbedderPolicy* aOutPolicy) override;

  inline void CleanRedirectCacheChainIfNecessary() {

    auto redirectedCachekeys = mRedirectedCachekeys.Lock();

    redirectedCachekeys.ref() = nullptr;

  NS_IMETHOD HTTPUpgrade(const nsACString& aProtocolName,

                         nsIHttpUpgradeListener* aListener) override;

  void DoDiagnosticAssertWhenOnStopNotCalledOnDestroy() override;

  NS_IMETHOD SetEarlyHintPreloaderId(uint64_t aEarlyHintPreloaderId) override;

  NS_IMETHOD GetEarlyHintPreloaderId(uint64_t* aEarlyHintPreloaderId) override;

  NS_IMETHOD SetEarlyHintLinkType(uint32_t aEarlyHintLinkType) override;

  NS_IMETHOD GetEarlyHintLinkType(uint32_t* aEarlyHintLinkType) override;

  NS_IMETHOD SetIsUserAgentHeaderModified(bool value) override;

  NS_IMETHOD GetIsUserAgentHeaderModified(bool* value) override;

  NS_IMETHOD GetLastTransportStatus(nsresult* aLastTransportStatus) override;

  NS_IMETHOD GetCaps(uint32_t* aCaps) override {

    if (!aCaps) {

      return NS_ERROR_INVALID_ARG;

    *aCaps = mCaps;

    return NS_OK;

  NS_IMETHOD SetClassicScriptHintCharset(

      const nsAString& aClassicScriptHintCharset) override;

  NS_IMETHOD GetClassicScriptHintCharset(

      nsAString& aClassicScriptHintCharset) override;

  NS_IMETHOD SetDocumentCharacterSet(

      const nsAString& aDocumentCharacterSet) override;

  NS_IMETHOD GetDocumentCharacterSet(nsAString& aDocumentCharacterSet) override;

  virtual void SetConnectionInfo(

      mozilla::net::nsHttpConnectionInfo* aCI) override;

  // nsISupportsPriority

  NS_IMETHOD GetPriority(int32_t* value) override;

  NS_IMETHOD AdjustPriority(int32_t delta) override;

  // nsIClassOfService

  NS_IMETHOD GetClassFlags(uint32_t* outFlags) override {

    *outFlags = mClassOfService.Flags();

    return NS_OK;

  NS_IMETHOD GetIncremental(bool* outIncremental) override {

    *outIncremental = mClassOfService.Incremental();

    return NS_OK;

  NS_IMETHOD GetFetchPriority(

      nsIClassOfService::FetchPriority* aFetchPriority) override {

    *aFetchPriority = mClassOfService.FetchPriority();

    return NS_OK;

  NS_IMETHOD SetFetchPriority(

      nsIClassOfService::FetchPriority aFetchPriority) override {

    mClassOfService.SetFetchPriority(aFetchPriority);

    return NS_OK;

  void SetFetchPriorityDOM(mozilla::dom::FetchPriority aPriority) override;

  // nsIResumableChannel

  NS_IMETHOD GetEntityID(nsACString& aEntityID) override;

  // nsIConsoleReportCollector

  void AddConsoleReport(uint32_t aErrorFlags, const nsACString& aCategory,

                        nsContentUtils::PropertiesFile aPropertiesFile,

                        const nsACString& aSourceFileURI, uint32_t aLineNumber,

                        uint32_t aColumnNumber, const nsACString& aMessageName,

                        const nsTArray<nsString>& aStringParams) override;

  void FlushReportsToConsole(

      uint64_t aInnerWindowID,

      ReportAction aAction = ReportAction::Forget) override;

  void FlushReportsToConsoleForServiceWorkerScope(

      const nsACString& aScope,

      ReportAction aAction = ReportAction::Forget) override;

  void FlushConsoleReports(

      dom::Document* aDocument,

      ReportAction aAction = ReportAction::Forget) override;

  void FlushConsoleReports(

      nsILoadGroup* aLoadGroup,

      ReportAction aAction = ReportAction::Forget) override;

  void FlushConsoleReports(nsIConsoleReportCollector* aCollector) override;

  void StealConsoleReports(

      nsTArray<net::ConsoleReportCollected>& aReports) override;

  void ClearConsoleReports() override;

  class nsContentEncodings : public nsStringEnumeratorBase {

   public:

    NS_DECL_ISUPPORTS

    NS_DECL_NSIUTF8STRINGENUMERATOR

    using nsStringEnumeratorBase::GetNext;

    nsContentEncodings(nsIHttpChannel* aChannel, const char* aEncodingHeader);

   private:

    virtual ~nsContentEncodings() = default;

    [[nodiscard]] nsresult PrepareForNext(void);

    // We do not own the buffer.  The channel owns it.

    const char* mEncodingHeader;

    const char* mCurStart;  // points to start of current header

    const char* mCurEnd;    // points to end of current header

    // Hold a ref to our channel so that it can't go away and take the

    // header with it.

    nsCOMPtr<nsIHttpChannel> mChannel;

    bool mReady;

};

  nsHttpResponseHead* GetResponseHead() const { return mResponseHead.get(); }

  nsHttpRequestHead* GetRequestHead() { return &mRequestHead; }

  nsHttpHeaderArray* GetResponseTrailers() const {

    return mResponseTrailers.get();

  // Return the cloned HTTP Headers if available.

  // The returned headers can be passed to SetDummyChannelForCachedResource

  // to create a dummy channel with the same HTTP headers.

  UniquePtr<nsHttpResponseHead> MaybeCloneResponseHeadForCachedResource();

  // Set this channel as a dummy channel for cached resources.

//

  // If aMaybeResponseHead is provided, this uses the given HTTP headers.

  // Otherwise this uses an empty HTTP headers.

  void SetDummyChannelForCachedResource(

      const nsHttpResponseHead* aMaybeResponseHead = nullptr);

  const NetAddr& GetSelfAddr() { return mSelfAddr; }

  const NetAddr& GetPeerAddr() { return mPeerAddr; }

  [[nodiscard]] nsresult OverrideSecurityInfo(

      nsITransportSecurityInfo* aSecurityInfo);

  void LogORBError(const nsAString& aReason,

                   const OpaqueResponseBlockedTelemetryReason aTelemetryReason);

 public: /* Necko internal use only... */

  int64_t GetAltDataLength() { return mAltDataLength; }

  bool IsNavigation();

  bool IsDeliveringAltData() const { return LoadDeliveringAltData(); }

  static void PropagateReferenceIfNeeded(nsIURI* aURI,

                                         nsCOMPtr<nsIURI>& aRedirectURI);

  // Return whether upon a redirect code of httpStatus for method, the

  // request method should be rewritten to GET.

  static bool ShouldRewriteRedirectToGET(

      uint32_t httpStatus, nsHttpRequestHead::ParsedMethodType method);

  // Like nsIEncodedChannel::DoApplyConversions except context is set to

  // mListenerContext.

  [[nodiscard]] nsresult DoApplyContentConversions(

      nsIStreamListener* aNextListener, nsIStreamListener** aNewNextListener);

  void AddClassificationFlags(uint32_t aClassificationFlags,

                              bool aIsThirdParty);

  const uint64_t& ChannelId() const { return mChannelId; }

  nsresult InternalSetUploadStream(nsIInputStream* uploadStream,

                                   int64_t aContentLength = -1,

                                   bool aSetContentLengthHeader = false);

  void SetUploadStreamHasHeaders(bool hasHeaders) {

    StoreUploadStreamHasHeaders(hasHeaders);

  virtual nsresult SetReferrerHeader(const nsACString& aReferrer,

                                     bool aRespectBeforeConnect = true) {

    if (aRespectBeforeConnect) {

      ENSURE_CALLED_BEFORE_CONNECT();

    return mRequestHead.SetHeader(nsHttp::Referer, aReferrer);

  nsresult ClearReferrerHeader() {

    ENSURE_CALLED_BEFORE_CONNECT();

    return mRequestHead.ClearHeader(nsHttp::Referer);

  void SetTopWindowURI(nsIURI* aTopWindowURI) { mTopWindowURI = aTopWindowURI; }

  // Set referrerInfo and compute the referrer header if neccessary.

  // Pass true for aSetOriginal if this is a new referrer and should

  // overwrite the 'original' value, false if this is a mutation (like

  // stripping the path).

  nsresult SetReferrerInfoInternal(nsIReferrerInfo* aReferrerInfo, bool aClone,

                                   bool aCompute, bool aRespectBeforeConnect);

  struct ReplacementChannelConfig {

    ReplacementChannelConfig() = default;

    explicit ReplacementChannelConfig(

        const dom::ReplacementChannelConfigInit& aInit);

    uint32_t redirectFlags = 0;

    ClassOfService classOfService = {0, false};

    Maybe<bool> privateBrowsing = Nothing();

    Maybe<nsCString> method;

    nsCOMPtr<nsIReferrerInfo> referrerInfo;

    Maybe<dom::TimedChannelInfo> timedChannelInfo;

    nsCOMPtr<nsIInputStream> uploadStream;

    uint64_t uploadStreamLength = 0;

    bool uploadStreamHasHeaders = false;

    Maybe<nsCString> contentType;

    Maybe<nsCString> contentLength;

    dom::ReplacementChannelConfigInit Serialize();

};

  enum class ReplacementReason {

    Redirect,

    InternalRedirect,

    DocumentChannel,

};

  // Create a ReplacementChannelConfig object that can be used to duplicate the

  // current channel.

  ReplacementChannelConfig CloneReplacementChannelConfig(

      bool aPreserveMethod, uint32_t aRedirectFlags, ReplacementReason aReason);

  static void ConfigureReplacementChannel(nsIChannel*,

                                          const ReplacementChannelConfig&,

                                          ReplacementReason);

  // Called before we create the redirect target channel.

  already_AddRefed<nsILoadInfo> CloneLoadInfoForRedirect(

      nsIURI* aNewURI, uint32_t aRedirectFlags);

  // True if we've already applied content conversion to the data

  // passed to mListener.

  bool HasAppliedConversion() { return LoadHasAppliedConversion(); }

  // https://fetch.spec.whatwg.org/#concept-request-tainted-origin

  bool HasRedirectTaintedOrigin() { return LoadTaintedOriginFlag(); }

  bool ChannelBlockedByOpaqueResponse() const {

    return mChannelBlockedByOpaqueResponse;

  bool CachedOpaqueResponseBlockingPref() const {

    return mCachedOpaqueResponseBlockingPref;

  TimeStamp GetOnStartRequestStartTime() const {

    return mOnStartRequestStartTime;

  TimeStamp GetDataAvailableStartTime() const {

    return mOnDataAvailableStartTime;

  TimeStamp GetOnStopRequestStartTime() const {

    return mOnStopRequestStartTime;

 protected:

  nsresult GetTopWindowURI(nsIURI* aURIBeingLoaded, nsIURI** aTopWindowURI);

  // Handle notifying listener, removing from loadgroup if request failed.

  void DoNotifyListener();

  virtual void DoNotifyListenerCleanup() = 0;

  // drop reference to listener, its callbacks, and the progress sink

  virtual void ReleaseListeners();

  // Call AsyncAbort().

  virtual void DoAsyncAbort(nsresult aStatus) = 0;

  void MaybeReportTimingData();

  nsIURI* GetReferringPage();

  nsPIDOMWindowInner* GetInnerDOMWindow();

  void AddCookiesToRequest();

  [[nodiscard]] virtual nsresult SetupReplacementChannel(

      nsIURI*, nsIChannel*, bool preserveMethod, uint32_t redirectFlags);

  bool IsNewChannelSameOrigin(nsIChannel* aNewChannel);

  // WHATWG Fetch Standard 4.4. HTTP-redirect fetch, step 10

  virtual bool ShouldTaintReplacementChannelOrigin(nsIChannel* aNewChannel,

                                                   uint32_t aRedirectFlags);

  // bundle calling OMR observers and marking flag into one function

  inline void CallOnModifyRequestObservers() {

    gHttpHandler->OnModifyRequest(this);

    MOZ_ASSERT(!LoadRequestObserversCalled());

    StoreRequestObserversCalled(true);

  // Helper function to simplify getting notification callbacks.

  template <class T>

  void GetCallback(nsCOMPtr<T>& aResult) {

    NS_QueryNotificationCallbacks(mCallbacks, mLoadGroup,

                                  NS_GET_TEMPLATE_IID(T),

                                  getter_AddRefs(aResult));

  // Redirect tracking

  // Checks whether or not aURI and mOriginalURI share the same domain.

  virtual bool SameOriginWithOriginalUri(nsIURI* aURI);

  [[nodiscard]] bool BypassServiceWorker() const;

  // Returns true if this channel should intercept the network request and

  // prepare for a possible synthesized response instead.

  bool ShouldIntercept(nsIURI* aURI = nullptr);

#ifdef DEBUG

  // Check if mPrivateBrowsingId matches between LoadInfo and LoadContext.

  void AssertPrivateBrowsingId();

#endif

  static void CallTypeSniffers(void* aClosure, const uint8_t* aData,

                               uint32_t aCount);

  nsresult CheckRedirectLimit(nsIURI* aNewURI, uint32_t aRedirectFlags) const;

  bool MaybeWaitForUploadStreamNormalization(nsIStreamListener* aListener,

                                             nsISupports* aContext);

  void MaybeFlushConsoleReports();

  bool IsBrowsingContextDiscarded() const;

  nsresult ProcessCrossOriginEmbedderPolicyHeader();

  nsresult ProcessCrossOriginResourcePolicyHeader();

  nsresult ComputeCrossOriginOpenerPolicyMismatch();

  nsresult ProcessCrossOriginSecurityHeaders();

  nsresult ValidateMIMEType();

  bool ShouldFilterOpaqueResponse(OpaqueResponseFilterFetch aFilterType) const;

  bool ShouldBlockOpaqueResponse() const;

  OpaqueResponse BlockOrFilterOpaqueResponse(

      OpaqueResponseBlocker* aORB, const nsAString& aReason,

      const OpaqueResponseBlockedTelemetryReason aTelemetryReason,

      const char* aFormat, ...);

  OpaqueResponse PerformOpaqueResponseSafelistCheckBeforeSniff();

  OpaqueResponse PerformOpaqueResponseSafelistCheckAfterSniff(

      const nsACString& aContentType, bool aNoSniff);

  bool NeedOpaqueResponseAllowedCheckAfterSniff() const;

  void BlockOpaqueResponseAfterSniff(

      const nsAString& aReason,

      const OpaqueResponseBlockedTelemetryReason aTelemetryReason);

  void AllowOpaqueResponseAfterSniff();

  void SetChannelBlockedByOpaqueResponse();

  bool Http3Allowed() const;

  virtual void ExplicitSetUploadStreamLength(uint64_t aContentLength,

                                             bool aSetContentLengthHeader);

  friend class OpaqueResponseBlocker;

  friend class PrivateBrowsingChannel<HttpBaseChannel>;

  friend class InterceptFailedOnStop;

  friend class HttpChannelParent;

 protected:

  // this section is for main-thread-only object

  // all the references need to be proxy released on main thread.

  nsCOMPtr<nsIURI> mURI;

  nsCOMPtr<nsIURI> mOriginalURI;

  nsCOMPtr<nsIURI> mDocumentURI;

  nsCOMPtr<nsILoadGroup> mLoadGroup;

  nsCOMPtr<nsILoadInfo> mLoadInfo;

  nsCOMPtr<nsIInterfaceRequestor> mCallbacks;

  nsCOMPtr<nsIProgressEventSink> mProgressSink;

  nsCOMPtr<nsIReferrerInfo> mReferrerInfo;

  // The first parameter is the URI we would like to redirect to

  // The second parameter should be true if trasparent redirect otherwise false

  // mAPIRedirectTo is Nothing if and only if the URI is null.

  mozilla::Maybe<mozilla::CompactPair<nsCOMPtr<nsIURI>, bool>> mAPIRedirectTo;

  nsCOMPtr<nsIURI> mProxyURI;

  nsCOMPtr<nsIPrincipal> mPrincipal;

  nsCOMPtr<nsIURI> mTopWindowURI;

  nsCOMPtr<nsIStreamListener> mListener;

  // An instance of nsHTTPCompressConv

  nsCOMPtr<nsIStreamListener> mCompressListener;

  nsCOMPtr<nsIEventTarget> mCurrentThread;

  RefPtr<OpaqueResponseBlocker> mORB;

 private:

  // Proxy release all members above on main thread.

  void ReleaseMainThreadOnlyReferences();

  void MaybeResumeAsyncOpen();

  nsresult SetRequestHeaderInternal(const nsACString& aHeader,

                                    const nsACString& aValue, bool aMerge,

                                    nsHttpHeaderArray::HeaderVariety aVariety);

 protected:

  nsCString mSpec;  // ASCII encoded URL spec

  nsCString mContentTypeHint;

  nsCString mContentCharsetHint;

  nsCString mUserSetCookieHeader;

  // HTTP Upgrade Data

  nsCString mUpgradeProtocol;

  // Resumable channel specific data

  nsCString mEntityID;

  // The initiator type (for this resource) - how was the resource referenced in

  // the HTML file.

  nsString mInitiatorType;

  // Holds the name of the preferred alt-data type for each contentType.

  nsTArray<PreferredAlternativeDataTypeParams> mPreferredCachedAltDataTypes;

  // Holds the name of the alternative data type the channel returned.

  nsCString mAvailableCachedAltDataType;

  nsString mIntegrityMetadata;

  // Classified channel's matched information

  nsCString mMatchedList;

  nsCString mMatchedProvider;

  nsCString mMatchedFullHash;

  nsTArray<nsCString> mMatchedTrackingLists;

  nsTArray<nsCString> mMatchedTrackingFullHashes;

  nsCOMPtr<nsISupports> mOwner;

  nsHttpRequestHead mRequestHead;

  // Upload throttling.

  nsCOMPtr<nsIInputChannelThrottleQueue> mThrottleQueue;

  nsCOMPtr<nsIInputStream> mUploadStream;

  UniquePtr<nsHttpResponseHead> mResponseHead;

  UniquePtr<nsHttpHeaderArray> mResponseTrailers;

  RefPtr<nsHttpConnectionInfo> mConnectionInfo;

  nsCOMPtr<nsIProxyInfo> mProxyInfo;

  nsCOMPtr<nsITransportSecurityInfo> mSecurityInfo;

  nsCOMPtr<nsIHttpUpgradeListener> mUpgradeProtocolCallback;

  UniquePtr<nsString> mContentDispositionFilename;

  nsCOMPtr<nsIConsoleReportCollector> mReportCollector;

  RefPtr<nsHttpHandler> mHttpHandler;  // keep gHttpHandler alive

  // Accessed on MainThread and Cache2 IO thread

  DataMutex<UniquePtr<nsTArray<nsCString>>> mRedirectedCachekeys{

      "mRedirectedCacheKeys"};

  nsCOMPtr<nsIRequestContext> mRequestContext;

  NetAddr mSelfAddr;

  NetAddr mPeerAddr;

  nsTArray<std::pair<nsString, nsString>> mSecurityConsoleMessages;

  nsTArray<nsCString> mUnsafeHeaders;

  // A time value equal to the starting time of the fetch that initiates the

  // redirect.

  mozilla::TimeStamp mRedirectStartTimeStamp;

  // A time value equal to the time immediately after receiving the last byte of

  // the response of the last redirect.

  mozilla::TimeStamp mRedirectEndTimeStamp;

  PRTime mChannelCreationTime;

  TimeStamp mChannelCreationTimestamp;

  TimeStamp mAsyncOpenTime;

  TimeStamp mCacheReadStart;

  TimeStamp mCacheReadEnd;

  TimeStamp mLaunchServiceWorkerStart;

  TimeStamp mLaunchServiceWorkerEnd;

  TimeStamp mDispatchFetchEventStart;

  TimeStamp mDispatchFetchEventEnd;

  TimeStamp mHandleFetchEventStart;

  TimeStamp mHandleFetchEventEnd;

  TimeStamp mOnStartRequestStartTime;

  TimeStamp mOnDataAvailableStartTime;

  TimeStamp mOnStopRequestStartTime;

  // copied from the transaction before we null out mTransaction

  // so that the timing can still be queried from OnStopRequest

  TimingStruct mTransactionTimings;

  // Gets computed during ComputeCrossOriginOpenerPolicyMismatch so we have

  // the channel's policy even if we don't know policy initiator.

  nsILoadInfo::CrossOriginOpenerPolicy mComputedCrossOriginOpenerPolicy;

  uint64_t mStartPos;

  uint64_t mTransferSize;

  uint64_t mRequestSize;

  uint64_t mDecodedBodySize;

  // True only when the channel supports any of the versions of HTTP3

  bool mSupportsHTTP3;

  uint64_t mEncodedBodySize;

  uint64_t mRequestContextID;

  // ID of the top-level document's inner window this channel is being

  // originated from.

  uint64_t mContentWindowId;

  uint64_t mBrowserId;

  int64_t mAltDataLength;

  uint64_t mChannelId;

  uint64_t mReqContentLength;

  Atomic<nsresult, ReleaseAcquire> mStatus;

  // Use Release-Acquire ordering to ensure the OMT ODA is ignored while channel

  // is canceled on main thread.

  Atomic<bool, ReleaseAcquire> mCanceled;

  Atomic<uint32_t, ReleaseAcquire> mFirstPartyClassificationFlags;

  Atomic<uint32_t, ReleaseAcquire> mThirdPartyClassificationFlags;

  // mutex to guard members accessed during OnDataFinished in

  // HttpChannelChild.cpp

  Mutex mOnDataFinishedMutex{"HttpChannelChild::OnDataFinishedMutex"};

  UniquePtr<ProfileChunkedBuffer> mSource;

  uint32_t mLoadFlags;

  uint32_t mCaps;

  ClassOfService mClassOfService;

  // This should be set the the actual TRR mode used to resolve the request.

  // Is initially set to TRR_DEFAULT_MODE, but should be updated to the actual

  // mode used by the request

  nsIRequest::TRRMode mEffectiveTRRMode = nsIRequest::TRR_DEFAULT_MODE;

  TRRSkippedReason mTRRSkipReason = TRRSkippedReason::TRR_UNSET;

 public:

  void SetEarlyHints(

      nsTArray<mozilla::net::EarlyHintConnectArgs>&& aEarlyHints);

  nsTArray<mozilla::net::EarlyHintConnectArgs>&& TakeEarlyHints();

 protected:

  // Storing Http 103 Early Hint preloads. The parent process is responsible to

  // start the early hint preloads, but the http child needs to be able to look

  // them up. They are sent via IPC and stored in this variable. This is set on

  // main document channel

  nsTArray<EarlyHintConnectArgs> mEarlyHints;

  // EarlyHintRegistrar id to connect back to the preload. Set on preload

  // channels started from the above list

  uint64_t mEarlyHintPreloaderId = 0;

  uint32_t mEarlyHintLinkType = 0;

  nsString mClassicScriptHintCharset;

  nsString mDocumentCharacterSet;

  // clang-format off

  MOZ_ATOMIC_BITFIELDS(mAtomicBitfields1, 32, (

    (uint32_t, UpgradeToSecure, 1),

    (uint32_t, ApplyConversion, 1),

    // Set to true if DoApplyContentConversions has been applied to

    // our default mListener.

    (uint32_t, HasAppliedConversion, 1),

    (uint32_t, IsPending, 1),

    (uint32_t, WasOpened, 1),

    // if 1 all "http-on-{opening|modify|etc}-request" observers have been

    // called.

    (uint32_t, RequestObserversCalled, 1),

    (uint32_t, ResponseHeadersModified, 1),

    (uint32_t, AllowSTS, 1),

    (uint32_t, ThirdPartyFlags, 3),

    (uint32_t, UploadStreamHasHeaders, 1),

    (uint32_t, ChannelIsForDownload, 1),

    (uint32_t, TracingEnabled, 1),

    // True if timing collection is enabled

    (uint32_t, TimingEnabled, 1),

    (uint32_t, ReportTiming, 1),

    (uint32_t, AllowSpdy, 1),

    (uint32_t, AllowHttp3, 1),

    (uint32_t, AllowAltSvc, 1),

    // !!! This is also used by the URL classifier to exempt channels from

    // classification. If this is changed or removed, make sure we also update

    // NS_ShouldClassifyChannel accordingly !!!

    (uint32_t, BeConservative, 1),

    // If the current channel is used to as a TRR connection.

    (uint32_t, IsTRRServiceChannel, 1),

    // If the request was performed to a TRR resolved IP address.

    // Will be false if loading the resource does not create a connection

    // (for example when it's loaded from the cache).

    (uint32_t, ResolvedByTRR, 1),

    (uint32_t, ResponseTimeoutEnabled, 1),

    // A flag that should be false only if a cross-domain redirect occurred

    (uint32_t, AllRedirectsSameOrigin, 1),

    // Is 1 if no redirects have occured or if all redirects

    // pass the Resource Timing timing-allow-check

    (uint32_t, AllRedirectsPassTimingAllowCheck, 1),

    // True if this channel was intercepted and could receive a synthesized

    // response.

    (uint32_t, ResponseCouldBeSynthesized, 1),

    (uint32_t, BlockAuthPrompt, 1),

    // If true, we behave as if the LOAD_FROM_CACHE flag has been set.

    // Used to enforce that flag's behavior but not expose it externally.

    (uint32_t, AllowStaleCacheContent, 1),

    // If true, we behave as if the VALIDATE_ALWAYS flag has been set.

    // Used to force validate the cached content.

    (uint32_t, ForceValidateCacheContent, 1),

    // If true, we prefer the LOAD_FROM_CACHE flag over LOAD_BYPASS_CACHE or

    // LOAD_BYPASS_LOCAL_CACHE.

    (uint32_t, PreferCacheLoadOverBypass, 1),

    (uint32_t, IsProxyUsed, 1)

))

  // Broken up into two bitfields to avoid alignment requirements of uint64_t.

  // (Too many bits used for one uint32_t.)

  MOZ_ATOMIC_BITFIELDS(mAtomicBitfields2, 32, (

    // True iff this request has been calculated in its request context as

    // a non tail request.  We must remove it again when this channel is done.

    (uint32_t, AddedAsNonTailRequest, 1),

    // True if AsyncOpen() is called when the upload stream normalization or

    // length is still unknown.  AsyncOpen() will be retriggered when

    // normalization is complete and length has been determined.

    (uint32_t, AsyncOpenWaitingForStreamNormalization, 1),

    // Defaults to true.  This is set to false when it is no longer possible

    // to upgrade the request to a secure channel.

    (uint32_t, UpgradableToSecure, 1),

    // Tainted origin flag of a request, specified by

    // WHATWG Fetch Standard 2.2.5.

    (uint32_t, TaintedOriginFlag, 1),

    // If the channel is being used to check OCSP

    (uint32_t, IsOCSP, 1),

    // Used by system requests such as remote settings and updates to

    // retry requests without proxies.

    (uint32_t, BypassProxy, 1),

    // Indicate whether the response of this channel is coming from

    // socket process.

    (uint32_t, LoadedBySocketProcess, 1),

    // Indicates whether the user-agent header has been modifed since the channel

    // was created.

    (uint32_t, IsUserAgentHeaderModified, 1)

))

  // clang-format on

  // An opaque flags for non-standard behavior of the TLS system.

  // It is unlikely this will need to be set outside of telemetry studies

  // relating to the TLS implementation.

  uint32_t mTlsFlags;

  // Current suspension depth for this channel object

  uint32_t mSuspendCount;

  // Per channel transport window override (0 means no override)

  uint32_t mInitialRwin;

  uint32_t mProxyResolveFlags;

  uint32_t mContentDispositionHint;

  dom::RequestMode mRequestMode;

  uint32_t mRedirectMode;

  // If this channel was created as the result of a redirect, then this value

  // will reflect the redirect flags passed to the SetupReplacementChannel()

  // method.

  uint32_t mLastRedirectFlags;

  int16_t mPriority;

  uint8_t mRedirectionLimit;

  // Performance tracking

  // Number of redirects that has occurred.

  int8_t mRedirectCount;

  // Number of internal redirects that has occurred.

  int8_t mInternalRedirectCount;

  enum class SnifferCategoryType {

    NetContent = 0,

    OpaqueResponseBlocking,

All

};

  SnifferCategoryType mSnifferCategoryType = SnifferCategoryType::NetContent;

  // Used to ensure the same pref value is being used across the

  // lifetime of this http channel.

  const bool mCachedOpaqueResponseBlockingPref;

  bool mChannelBlockedByOpaqueResponse;

  bool mDummyChannelForCachedResource;

  bool mHasContentDecompressed;

  // A flag that should be false if render-blocking is not stated

  bool mRenderBlocking;

  // clang-format off

  MOZ_ATOMIC_BITFIELDS(mAtomicBitfields3, 8, (

    (bool, AsyncOpenTimeOverriden, 1),

    (bool, ForcePending, 1),

    // true if the channel is deliving alt-data.

    (bool, DeliveringAltData, 1),

    (bool, CorsIncludeCredentials, 1),

    // These parameters are used to ensure that we do not call OnStartRequest

    // and OnStopRequest more than once.

    (bool, OnStartRequestCalled, 1),

    (bool, OnStopRequestCalled, 1),

    // Defaults to false. Is set to true at the begining of OnStartRequest.

    // Used to ensure methods can't be called before OnStartRequest.

    (bool, AfterOnStartRequestBegun, 1),

    (bool, RequireCORSPreflight, 1)

))

  // Broken up into two bitfields to avoid alignment requirements of uint16_t.

  // (Too many bits used for one uint8_t.)

  MOZ_ATOMIC_BITFIELDS(mAtomicBitfields4, 8, (

    // This flag will be true if the consumer is requesting alt-data AND the

    // consumer is in the child process.

    (bool, AltDataForChild, 1),

    // This flag will be true if the consumer cannot process alt-data.  This

    // is used in the webextension StreamFilter handler.  If true, we bypass

    // using alt-data for the request.

    (bool, DisableAltDataCache, 1),

    (bool, ForceMainDocumentChannel, 1),

    // This is set true if the channel is waiting for upload stream

    // normalization or the InputStreamLengthHelper::GetAsyncLength callback.

    (bool, PendingUploadStreamNormalization, 1),

    // Set to true if our listener has indicated that it requires

    // content conversion to be done by us.

    (bool, ListenerRequiresContentConversion, 1),

    // True if this is a navigation to a page with a different cross origin

    // opener policy ( see ComputeCrossOriginOpenerPolicyMismatch )

    (uint32_t, HasCrossOriginOpenerPolicyMismatch, 1),

    // True if HTTPS RR is used during the connection establishment of this

    // channel.

    (uint32_t, HasHTTPSRR, 1),

    // Ensures that ProcessCrossOriginSecurityHeadersCalled has been called

    // before calling CallOnStartRequest.

    (uint32_t, ProcessCrossOriginSecurityHeadersCalled, 1)

))

  // clang-format on

  bool EnsureRequestContextID();

  bool EnsureRequestContext();

  // Adds/removes this channel as a non-tailed request in its request context

  // these helpers ensure we add it only once and remove it only when added

  // via AddedAsNonTailRequest member tracking.

  void AddAsNonTailRequest();

  void RemoveAsNonTailRequest();

  void EnsureBrowserId();

  bool PerformCORSCheck();

};

NS_DEFINE_STATIC_IID_ACCESSOR(HttpBaseChannel, HTTP_BASE_CHANNEL_IID)

// Share some code while working around C++'s absurd inability to handle casting

// of member functions between base/derived types.

// - We want to store member function pointer to call at resume time, but one

//   such function--HandleAsyncAbort--we want to share between the

//   nsHttpChannel/HttpChannelChild.  Can't define it in base class, because

//   then we'd have to cast member function ptr between base/derived class

//   types.  Sigh...

template <class T>

class HttpAsyncAborter {

 public:

  explicit HttpAsyncAborter(T* derived)

      : mThis(derived), mCallOnResume(nullptr) {}

  // Aborts channel: calls OnStart/Stop with provided status, removes channel

  // from loadGroup.

  [[nodiscard]] nsresult AsyncAbort(nsresult status);

  // Does most the actual work.

  void HandleAsyncAbort();

  // AsyncCall calls a member function asynchronously (via an event).

  // retval isn't refcounted and is set only when event was successfully

  // posted, the event is returned for the purpose of cancelling when needed

  [[nodiscard]] virtual nsresult AsyncCall(

      void (T::*funcPtr)(), nsRunnableMethod<T>** retval = nullptr);

 private:

  T* mThis;

 protected:

  // Function to be called at resume time

  std::function<nsresult(T*)> mCallOnResume;

};

template <class T>

[[nodiscard]] nsresult HttpAsyncAborter<T>::AsyncAbort(nsresult status) {

  MOZ_LOG(gHttpLog, LogLevel::Debug,

          ("HttpAsyncAborter::AsyncAbort [this=%p status=%" PRIx32 "]\n", mThis,

           static_cast<uint32_t>(status)));

  mThis->mStatus = status;

  // if this fails?  Callers ignore our return value anyway....

  return AsyncCall(&T::HandleAsyncAbort);

// Each subclass needs to define its own version of this (which just calls this

// base version), else we wind up casting base/derived member function ptrs

template <class T>

inline void HttpAsyncAborter<T>::HandleAsyncAbort() {

  MOZ_ASSERT(!mCallOnResume, "How did that happen?");

  if (mThis->mSuspendCount) {

    MOZ_LOG(

        gHttpLog, LogLevel::Debug,

        ("Waiting until resume to do async notification [this=%p]\n", mThis));

    mCallOnResume = [](T* self) {

      self->HandleAsyncAbort();

      return NS_OK;

};

    return;

  mThis->DoNotifyListener();

  // finally remove ourselves from the load group.

  if (mThis->mLoadGroup) {

    mThis->mLoadGroup->RemoveRequest(mThis, nullptr, mThis->mStatus);

template <class T>

nsresult HttpAsyncAborter<T>::AsyncCall(void (T::*funcPtr)(),

                                        nsRunnableMethod<T>** retval) {

  nsresult rv;

  RefPtr<nsRunnableMethod<T>> event =

      NewRunnableMethod("net::HttpAsyncAborter::AsyncCall", mThis, funcPtr);

  rv = NS_DispatchToCurrentThread(event);

  if (NS_SUCCEEDED(rv) && retval) {

    *retval = event;

  return rv;

class ProxyReleaseRunnable final : public mozilla::Runnable {

 public:

  explicit ProxyReleaseRunnable(nsTArray<nsCOMPtr<nsISupports>>&& aDoomed)

      : Runnable("ProxyReleaseRunnable"), mDoomed(std::move(aDoomed)) {}

  NS_IMETHOD

  Run() override {

    mDoomed.Clear();

    return NS_OK;

 private:

  virtual ~ProxyReleaseRunnable() = default;

  nsTArray<nsCOMPtr<nsISupports>> mDoomed;

};

}  // namespace net

}  // namespace mozilla

#endif  // mozilla_net_HttpBaseChannel_h