зеркало из https://github.com/mozilla/gecko-dev.git
392 строки
16 KiB
C++
392 строки
16 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 nsCookieService_h__
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#define nsCookieService_h__
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#include "nsICookieService.h"
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#include "nsICookieManager.h"
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#include "nsICookiePermission.h"
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#include "nsIObserver.h"
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#include "nsWeakReference.h"
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#include "nsCookie.h"
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#include "nsCookieKey.h"
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#include "nsString.h"
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#include "nsAutoPtr.h"
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#include "nsHashKeys.h"
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#include "nsIMemoryReporter.h"
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#include "nsTHashtable.h"
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#include "mozIStorageStatement.h"
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#include "mozIStorageAsyncStatement.h"
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#include "mozIStoragePendingStatement.h"
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#include "mozIStorageConnection.h"
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#include "mozIStorageRow.h"
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#include "mozIStorageCompletionCallback.h"
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#include "mozIStorageStatementCallback.h"
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#include "mozIStorageFunction.h"
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#include "nsIVariant.h"
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#include "nsIFile.h"
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#include "mozilla/Atomics.h"
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#include "mozilla/BasePrincipal.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/Monitor.h"
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#include "mozilla/UniquePtr.h"
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using mozilla::OriginAttributes;
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class nsICookiePermission;
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class nsICookieSettings;
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class nsIEffectiveTLDService;
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class nsIIDNService;
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class nsIPrefBranch;
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class nsIObserverService;
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class nsIURI;
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class nsIChannel;
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class nsIArray;
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class nsIThread;
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class mozIStorageService;
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class mozIThirdPartyUtil;
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class ReadCookieDBListener;
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struct nsListIter;
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namespace mozilla {
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namespace net {
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class nsCookieKey;
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class CookieServiceParent;
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} // namespace net
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} // namespace mozilla
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using mozilla::net::nsCookieKey;
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// Inherit from nsCookieKey so this can be stored in nsTHashTable
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// TODO: why aren't we using nsClassHashTable<nsCookieKey, ArrayType>?
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class nsCookieEntry : public nsCookieKey {
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public:
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// Hash methods
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typedef nsTArray<RefPtr<nsCookie> > ArrayType;
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typedef ArrayType::index_type IndexType;
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explicit nsCookieEntry(KeyTypePointer aKey) : nsCookieKey(aKey) {}
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nsCookieEntry(const nsCookieEntry& toCopy) {
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// if we end up here, things will break. nsTHashtable shouldn't
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// allow this, since we set ALLOW_MEMMOVE to true.
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MOZ_ASSERT_UNREACHABLE("nsCookieEntry copy constructor is forbidden!");
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}
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~nsCookieEntry() = default;
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inline ArrayType& GetCookies() { return mCookies; }
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size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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private:
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ArrayType mCookies;
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};
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// encapsulates a (key, nsCookie) tuple for temporary storage purposes.
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struct CookieDomainTuple {
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nsCookieKey key;
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OriginAttributes originAttributes;
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mozilla::UniquePtr<mozilla::net::CookieStruct> cookie;
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};
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// encapsulates in-memory and on-disk DB states, so we can
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// conveniently switch state when entering or exiting private browsing.
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struct DBState final {
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DBState()
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: cookieCount(0),
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cookieOldestTime(INT64_MAX),
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corruptFlag(OK),
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readListener(nullptr) {}
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private:
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// Private destructor, to discourage deletion outside of Release():
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~DBState() = default;
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public:
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NS_INLINE_DECL_REFCOUNTING(DBState)
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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// State of the database connection.
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enum CorruptFlag {
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OK, // normal
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CLOSING_FOR_REBUILD, // corruption detected, connection closing
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REBUILDING // close complete, rebuilding database from memory
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};
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nsTHashtable<nsCookieEntry> hostTable;
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uint32_t cookieCount;
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int64_t cookieOldestTime;
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nsCOMPtr<nsIFile> cookieFile;
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nsCOMPtr<mozIStorageConnection> dbConn;
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nsCOMPtr<mozIStorageAsyncStatement> stmtInsert;
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nsCOMPtr<mozIStorageAsyncStatement> stmtDelete;
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nsCOMPtr<mozIStorageAsyncStatement> stmtUpdate;
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CorruptFlag corruptFlag;
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// Various parts representing asynchronous read state. These are useful
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// while the background read is taking place.
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nsCOMPtr<mozIStorageConnection> syncConn;
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nsCOMPtr<mozIStorageStatement> stmtReadDomain;
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// The asynchronous read listener. This is a weak ref (storage has ownership)
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// since it may need to outlive the DBState's database connection.
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ReadCookieDBListener* readListener;
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// DB completion handlers.
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nsCOMPtr<mozIStorageStatementCallback> insertListener;
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nsCOMPtr<mozIStorageStatementCallback> updateListener;
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nsCOMPtr<mozIStorageStatementCallback> removeListener;
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nsCOMPtr<mozIStorageCompletionCallback> closeListener;
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};
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// these constants represent an operation being performed on cookies
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enum CookieOperation { OPERATION_READ, OPERATION_WRITE };
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// these constants represent a decision about a cookie based on user prefs.
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enum CookieStatus {
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STATUS_ACCEPTED,
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STATUS_ACCEPT_SESSION,
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STATUS_REJECTED,
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// STATUS_REJECTED_WITH_ERROR indicates the cookie should be rejected because
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// of an error (rather than something the user can control). this is used for
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// notification purposes, since we only want to notify of rejections where
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// the user can do something about it (e.g. whitelist the site).
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STATUS_REJECTED_WITH_ERROR
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};
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// Result codes for TryInitDB() and Read().
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enum OpenDBResult { RESULT_OK, RESULT_RETRY, RESULT_FAILURE };
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/******************************************************************************
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* nsCookieService:
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* class declaration
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******************************************************************************/
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class nsCookieService final : public nsICookieService,
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public nsICookieManager,
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public nsIObserver,
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public nsSupportsWeakReference,
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public nsIMemoryReporter {
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private:
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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static bool sSameSiteEnabled; // cached pref
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOBSERVER
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NS_DECL_NSICOOKIESERVICE
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NS_DECL_NSICOOKIEMANAGER
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NS_DECL_NSIMEMORYREPORTER
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nsCookieService();
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static already_AddRefed<nsICookieService> GetXPCOMSingleton();
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nsresult Init();
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/**
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* Start watching the observer service for messages indicating that an app has
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* been uninstalled. When an app is uninstalled, we get the cookie service
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* (thus instantiating it, if necessary) and clear all the cookies for that
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* app.
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*/
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static void AppClearDataObserverInit();
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static nsAutoCString GetPathFromURI(nsIURI* aHostURI);
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static nsresult GetBaseDomain(nsIEffectiveTLDService* aTLDService,
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nsIURI* aHostURI, nsCString& aBaseDomain,
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bool& aRequireHostMatch);
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static nsresult GetBaseDomainFromHost(nsIEffectiveTLDService* aTLDService,
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const nsACString& aHost,
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nsCString& aBaseDomain);
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static bool DomainMatches(nsCookie* aCookie, const nsACString& aHost);
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static bool PathMatches(nsCookie* aCookie, const nsACString& aPath);
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static bool CanSetCookie(nsIURI* aHostURI, const nsCookieKey& aKey,
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mozilla::net::CookieStruct& aCookieData,
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bool aRequireHostMatch, CookieStatus aStatus,
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nsCString& aCookieHeader, int64_t aServerTime,
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bool aFromHttp, nsIChannel* aChannel,
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bool& aSetCookie,
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mozIThirdPartyUtil* aThirdPartyUtil);
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static CookieStatus CheckPrefs(
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nsICookieSettings* aCookieSettings, nsIURI* aHostURI, bool aIsForeign,
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bool aIsTrackingResource, bool aIsFirstPartyStorageAccessGranted,
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const nsACString& aCookieHeader, const int aNumOfCookies,
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const OriginAttributes& aOriginAttrs, uint32_t* aRejectedReason);
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static int64_t ParseServerTime(const nsACString& aServerTime);
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static already_AddRefed<nsICookieSettings> GetCookieSettings(
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nsIChannel* aChannel);
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void GetCookiesForURI(nsIURI* aHostURI, nsIChannel* aChannel, bool aIsForeign,
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bool aIsTrackingResource,
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bool aFirstPartyStorageAccessGranted,
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uint32_t aRejectedReason, bool aIsSafeTopLevelNav,
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bool aIsSameSiteForeign, bool aHttpBound,
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const OriginAttributes& aOriginAttrs,
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nsTArray<nsCookie*>& aCookieList);
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protected:
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virtual ~nsCookieService();
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void PrefChanged(nsIPrefBranch* aPrefBranch);
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void InitDBStates();
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OpenDBResult TryInitDB(bool aDeleteExistingDB);
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void InitDBConn();
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nsresult InitDBConnInternal();
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nsresult CreateTableWorker(const char* aName);
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nsresult CreateIndex();
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nsresult CreateTable();
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nsresult CreateTableForSchemaVersion6();
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nsresult CreateTableForSchemaVersion5();
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void CloseDBStates();
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void CleanupCachedStatements();
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void CleanupDefaultDBConnection();
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void HandleDBClosed(DBState* aDBState);
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void HandleCorruptDB(DBState* aDBState);
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void RebuildCorruptDB(DBState* aDBState);
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OpenDBResult Read();
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mozilla::UniquePtr<mozilla::net::CookieStruct> GetCookieFromRow(
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mozIStorageStatement* aRow);
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void EnsureReadComplete(bool aInitDBConn);
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nsresult NormalizeHost(nsCString& aHost);
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nsresult GetCookieStringCommon(nsIURI* aHostURI, nsIChannel* aChannel,
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bool aHttpBound, nsACString& aCookie);
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void GetCookieStringInternal(nsIURI* aHostURI, nsIChannel* aChannel,
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bool aIsForeign, bool aIsTrackingResource,
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bool aFirstPartyStorageAccessGranted,
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uint32_t aRejectedReason,
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bool aIsSafeTopLevelNav, bool aIsSameSiteForeign,
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bool aHttpBound,
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const OriginAttributes& aOriginAttrs,
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nsACString& aCookie);
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nsresult SetCookieStringCommon(nsIURI* aHostURI,
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const nsACString& aCookieHeader,
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const nsACString& aServerTime,
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nsIChannel* aChannel, bool aFromHttp);
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void SetCookieStringInternal(
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nsIURI* aHostURI, bool aIsForeign, bool aIsTrackingResource,
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bool aFirstPartyStorageAccessGranted, uint32_t aRejectedReason,
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nsCString& aCookieHeader, const nsACString& aServerTime, bool aFromHttp,
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const OriginAttributes& aOriginAttrs, nsIChannel* aChannel);
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bool SetCookieInternal(nsIURI* aHostURI, const nsCookieKey& aKey,
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bool aRequireHostMatch, CookieStatus aStatus,
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nsCString& aCookieHeader, int64_t aServerTime,
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bool aFromHttp, nsIChannel* aChannel);
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void AddInternal(const nsCookieKey& aKey, nsCookie* aCookie,
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int64_t aCurrentTimeInUsec, nsIURI* aHostURI,
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const nsACString& aCookieHeader, bool aFromHttp);
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void RemoveCookieFromList(
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const nsListIter& aIter,
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mozIStorageBindingParamsArray* aParamsArray = nullptr);
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void AddCookieToList(const nsCookieKey& aKey, nsCookie* aCookie,
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DBState* aDBState,
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mozIStorageBindingParamsArray* aParamsArray,
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bool aWriteToDB = true);
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void UpdateCookieInList(nsCookie* aCookie, int64_t aLastAccessed,
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mozIStorageBindingParamsArray* aParamsArray);
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static bool GetTokenValue(nsACString::const_char_iterator& aIter,
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nsACString::const_char_iterator& aEndIter,
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nsDependentCSubstring& aTokenString,
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nsDependentCSubstring& aTokenValue,
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bool& aEqualsFound);
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static bool ParseAttributes(nsCString& aCookieHeader,
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mozilla::net::CookieStruct& aCookieData,
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nsACString& aExpires, nsACString& aMaxage,
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bool& aAcceptedByParser);
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bool RequireThirdPartyCheck();
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static bool CheckDomain(mozilla::net::CookieStruct& aCookieData,
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nsIURI* aHostURI, const nsCString& aBaseDomain,
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bool aRequireHostMatch);
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static bool CheckPath(mozilla::net::CookieStruct& aCookieData,
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nsIURI* aHostURI);
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static bool CheckPrefixes(mozilla::net::CookieStruct& aCookieData,
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bool aSecureRequest);
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static bool GetExpiry(mozilla::net::CookieStruct& aCookieData,
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const nsACString& aExpires, const nsACString& aMaxage,
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int64_t aServerTime, int64_t aCurrentTime,
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bool aFromHttp);
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void RemoveAllFromMemory();
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already_AddRefed<nsIArray> PurgeCookies(int64_t aCurrentTimeInUsec);
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bool FindCookie(const nsCookieKey& aKey, const nsCString& aHost,
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const nsCString& aName, const nsCString& aPath,
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nsListIter& aIter);
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bool FindSecureCookie(const nsCookieKey& aKey, nsCookie* aCookie);
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void FindStaleCookies(nsCookieEntry* aEntry, int64_t aCurrentTime,
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bool aIsSecure, nsTArray<nsListIter>& aOutput,
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uint32_t aLimit);
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void NotifyAccepted(nsIChannel* aChannel);
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void NotifyRejected(nsIURI* aHostURI, nsIChannel* aChannel,
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uint32_t aRejectedReason, CookieOperation aOperation);
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void NotifyChanged(nsISupports* aSubject, const char16_t* aData,
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bool aOldCookieIsSession = false, bool aFromHttp = false);
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void NotifyPurged(nsICookie* aCookie);
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already_AddRefed<nsIArray> CreatePurgeList(nsICookie* aCookie);
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void CreateOrUpdatePurgeList(nsIArray** aPurgeList, nsICookie* aCookie);
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void UpdateCookieOldestTime(DBState* aDBState, nsCookie* aCookie);
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nsresult GetCookiesWithOriginAttributes(
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const mozilla::OriginAttributesPattern& aPattern,
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const nsCString& aBaseDomain, nsISimpleEnumerator** aEnumerator);
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nsresult RemoveCookiesWithOriginAttributes(
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const mozilla::OriginAttributesPattern& aPattern,
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const nsCString& aBaseDomain);
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/**
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* This method is a helper that allows calling nsICookieManager::Remove()
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* with OriginAttributes parameter.
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* NOTE: this could be added to a public interface if we happen to need it.
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*/
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nsresult Remove(const nsACString& aHost, const OriginAttributes& aAttrs,
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const nsACString& aName, const nsACString& aPath,
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bool aBlocked);
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protected:
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nsresult RemoveCookiesFromExactHost(
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const nsACString& aHost,
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const mozilla::OriginAttributesPattern& aPattern);
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// cached members.
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nsCOMPtr<nsICookiePermission> mPermissionService;
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nsCOMPtr<mozIThirdPartyUtil> mThirdPartyUtil;
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nsCOMPtr<nsIEffectiveTLDService> mTLDService;
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nsCOMPtr<nsIIDNService> mIDNService;
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nsCOMPtr<mozIStorageService> mStorageService;
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// we have two separate DB states: one for normal browsing and one for
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// private browsing, switching between them on a per-cookie-request basis.
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// this state encapsulates both the in-memory table and the on-disk DB.
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// note that the private states' dbConn should always be null - we never
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// want to be dealing with the on-disk DB when in private browsing.
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DBState* mDBState;
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RefPtr<DBState> mDefaultDBState;
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RefPtr<DBState> mPrivateDBState;
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uint16_t mMaxNumberOfCookies;
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uint16_t mMaxCookiesPerHost;
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uint16_t mCookieQuotaPerHost;
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int64_t mCookiePurgeAge;
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// thread
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nsCOMPtr<nsIThread> mThread;
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mozilla::Monitor mMonitor;
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mozilla::Atomic<bool> mInitializedDBStates;
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mozilla::Atomic<bool> mInitializedDBConn;
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mozilla::TimeStamp mEndInitDBConn;
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nsTArray<CookieDomainTuple> mReadArray;
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// friends!
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friend class DBListenerErrorHandler;
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friend class ReadCookieDBListener;
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friend class CloseCookieDBListener;
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static already_AddRefed<nsCookieService> GetSingleton();
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friend class mozilla::net::CookieServiceParent;
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};
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#endif // nsCookieService_h__
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