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nsDNSService2.h


products/Sources/formale Sprachen/C/Firefox/netwerk/dns/nsDNSService2.h

/* -*- 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 nsDNSService2_h__ #define nsDNSService2_h__ #include "DNSServiceBase.h" #include "nsClassHashtable.h" #include "nsPIDNSService.h" #include "nsIMemoryReporter.h" #include "nsIObserver.h" #include "nsHostResolver.h" #include "nsString.h" #include "nsTHashSet.h" #include "nsHashKeys.h" #include "mozilla/Atomics.h" #include "mozilla/Mutex.h" #include "mozilla/Attributes.h" #include "TRRService.h" class nsAuthSSPI; class DNSServiceWrapper final : public nsPIDNSService { public: NS_DECL_THREADSAFE_ISUPPORTS NS_FORWARD_NSPIDNSSERVICE(PIDNSService()->) NS_FORWARD_NSIDNSSERVICE(DNSService()->) DNSServiceWrapper() = default; static already_AddRefed GetSingleton(); static void SwitchToBackupDNSService(); private: ~DNSServiceWrapper() = default; nsIDNSService* DNSService(); nsPIDNSService* PIDNSService(); mozilla::Mutex mLock{"DNSServiceWrapper.mLock"}; nsCOMPtr mDNSServiceInUse; nsCOMPtr mBackupDNSService; }; class nsDNSService final : public mozilla::net::DNSServiceBase, public nsPIDNSService, public nsIMemoryReporter { public: NS_DECL_ISUPPORTS_INHERITED NS_DECL_NSPIDNSSERVICE NS_DECL_NSIDNSSERVICE NS_DECL_NSIOBSERVER NS_DECL_NSIMEMORYREPORTER nsDNSService() = default; static already_AddRefed GetXPCOMSingleton(); size_t SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf) const; bool GetOffline() const; protected: friend class nsAuthSSPI; friend class DNSServiceWrapper; nsresult DeprecatedSyncResolve( const nsACString& aHostname, nsIDNSService::DNSFlags flags, const mozilla::OriginAttributes& aOriginAttributes, nsIDNSRecord** result); private: ~nsDNSService() = default; void ReadPrefs(const char* name) override; static already_AddRefed GetSingleton(); uint16_t GetAFForLookup(const nsACString& host, nsIDNSService::DNSFlags flags); nsresult PreprocessHostname(bool aLocalDomain, const nsACString& aInput, nsACString& aACE); bool IsLocalDomain(const nsACString& aHostname) const; nsresult AsyncResolveInternal( const nsACString& aHostname, uint16_t type, nsIDNSService::DNSFlags flags, nsIDNSAdditionalInfo* aInfo, nsIDNSListener* aListener, nsIEventTarget* target_, const mozilla::OriginAttributes& aOriginAttributes, nsICancelable** result); nsresult CancelAsyncResolveInternal( const nsACString& aHostname, uint16_t aType, nsIDNSService::DNSFlags aFlags, nsIDNSAdditionalInfo* aInfo, nsIDNSListener* aListener, nsresult aReason, const mozilla::OriginAttributes& aOriginAttributes); nsresult ResolveInternal(const nsACString& aHostname, nsIDNSService::DNSFlags flags, const mozilla::OriginAttributes& aOriginAttributes, nsIDNSRecord** result); // Locks the mutex and returns an addreffed resolver. May return null. already_AddRefed GetResolverLocked(); RefPtr mResolver; // mLock protects access to mResolver, mLocalDomains, mIPv4OnlyDomains, // mFailedSVCDomainNames, and mMockHTTPSRRDomain. mozilla::Mutex mLock MOZ_UNANNOTATED{"nsDNSServer.mLock"}; // mIPv4OnlyDomains is a comma-separated list of domains for which only // IPv4 DNS lookups are performed. This allows the user to disable IPv6 on // a per-domain basis and work around broken DNS servers. See bug 68796. nsCString mIPv4OnlyDomains; nsCString mForceResolve; nsCString mMockHTTPSRRDomain; mozilla::Atomic mHasMockHTTPSRRDomainSet{false}; bool mNotifyResolution = false; bool mForceResolveOn = false; nsTHashSet mLocalDomains; RefPtr mTrrService; nsClassHashtable> mFailedSVCDomainNames; }; already_AddRefed GetOrInitDNSService(); #endif // nsDNSService2_h__

                                                                                                                                                                                                                                                                                                                                                                                                     

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