mirror of
https://github.com/classilla/tenfourfox.git
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364 lines
14 KiB
C++
364 lines
14 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 "nsICookieManager2.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 "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/BasePrincipal.h"
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#include "mozilla/MemoryReporting.h"
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using mozilla::NeckoOriginAttributes;
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class nsICookiePermission;
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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 mozIStorageService;
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class mozIThirdPartyUtil;
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class ReadCookieDBListener;
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struct nsCookieAttributes;
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struct nsListIter;
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namespace mozilla {
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namespace net {
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class CookieServiceParent;
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} // namespace net
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} // namespace mozilla
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// hash key class
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class nsCookieKey : public PLDHashEntryHdr
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{
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public:
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typedef const nsCookieKey& KeyType;
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typedef const nsCookieKey* KeyTypePointer;
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nsCookieKey()
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{}
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nsCookieKey(const nsCString &baseDomain, const NeckoOriginAttributes &attrs)
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: mBaseDomain(baseDomain)
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, mOriginAttributes(attrs)
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{}
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explicit nsCookieKey(KeyTypePointer other)
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: mBaseDomain(other->mBaseDomain)
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, mOriginAttributes(other->mOriginAttributes)
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{}
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nsCookieKey(KeyType other)
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: mBaseDomain(other.mBaseDomain)
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, mOriginAttributes(other.mOriginAttributes)
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{}
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~nsCookieKey()
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{}
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bool KeyEquals(KeyTypePointer other) const
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{
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return mBaseDomain == other->mBaseDomain &&
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mOriginAttributes == other->mOriginAttributes;
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}
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static KeyTypePointer KeyToPointer(KeyType aKey)
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{
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return &aKey;
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}
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static PLDHashNumber HashKey(KeyTypePointer aKey)
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{
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// TODO: more efficient way to generate hash?
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nsAutoCString temp(aKey->mBaseDomain);
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temp.Append('#');
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nsAutoCString suffix;
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aKey->mOriginAttributes.CreateSuffix(suffix);
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temp.Append(suffix);
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return mozilla::HashString(temp);
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}
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size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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enum { ALLOW_MEMMOVE = true };
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nsCString mBaseDomain;
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NeckoOriginAttributes mOriginAttributes;
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};
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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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{
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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)
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: nsCookieKey(aKey)
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{}
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nsCookieEntry(const nsCookieEntry& toCopy)
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{
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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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NS_NOTREACHED("nsCookieEntry copy constructor is forbidden!");
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}
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~nsCookieEntry()
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{}
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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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{
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nsCookieKey key;
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RefPtr<nsCookie> cookie;
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size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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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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{
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DBState() : cookieCount(0), cookieOldestTime(INT64_MAX), corruptFlag(OK)
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{
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}
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private:
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// Private destructor, to discourage deletion outside of Release():
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~DBState()
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{
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}
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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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nsCOMPtr<mozIStoragePendingStatement> pendingRead;
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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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// An array of (baseDomain, cookie) tuples representing data read in
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// asynchronously. This is merged into hostTable once read is complete.
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nsTArray<CookieDomainTuple> hostArray;
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// A hashset of baseDomains read in synchronously, while the async read is
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// in flight. This is used to keep track of which data in hostArray is stale
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// when the time comes to merge.
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nsTHashtable<nsCookieKey> readSet;
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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 a decision about a cookie based on user prefs.
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enum CookieStatus
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{
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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
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{
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RESULT_OK,
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RESULT_RETRY,
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RESULT_FAILURE
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};
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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 nsICookieManager2
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, public nsIObserver
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, public nsSupportsWeakReference
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, public nsIMemoryReporter
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{
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private:
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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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_NSICOOKIEMANAGER2
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NS_DECL_NSIMEMORYREPORTER
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nsCookieService();
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static 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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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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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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template<class T> nsCookie* GetCookieFromRow(T &aRow);
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void AsyncReadComplete();
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void CancelAsyncRead(bool aPurgeReadSet);
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void EnsureReadDomain(const nsCookieKey &aKey);
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void EnsureReadComplete();
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nsresult NormalizeHost(nsCString &aHost);
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nsresult GetBaseDomain(nsIURI *aHostURI, nsCString &aBaseDomain, bool &aRequireHostMatch);
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nsresult GetBaseDomainFromHost(const nsACString &aHost, nsCString &aBaseDomain);
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nsresult GetCookieStringCommon(nsIURI *aHostURI, nsIChannel *aChannel, bool aHttpBound, char** aCookie);
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void GetCookieStringInternal(nsIURI *aHostURI, bool aIsForeign, bool aHttpBound, const NeckoOriginAttributes aOriginAttrs, bool aIsPrivate, nsCString &aCookie);
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nsresult SetCookieStringCommon(nsIURI *aHostURI, const char *aCookieHeader, const char *aServerTime, nsIChannel *aChannel, bool aFromHttp);
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void SetCookieStringInternal(nsIURI *aHostURI, bool aIsForeign, nsDependentCString &aCookieHeader, const nsCString &aServerTime, bool aFromHttp, const NeckoOriginAttributes &aOriginAttrs, bool aIsPrivate, nsIChannel* aChannel);
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bool SetCookieInternal(nsIURI *aHostURI, const nsCookieKey& aKey, bool aRequireHostMatch, CookieStatus aStatus, nsDependentCString &aCookieHeader, int64_t aServerTime, bool aFromHttp, nsIChannel* aChannel);
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void AddInternal(const nsCookieKey& aKey, nsCookie *aCookie, int64_t aCurrentTimeInUsec, nsIURI *aHostURI, const char *aCookieHeader, bool aFromHttp);
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void RemoveCookieFromList(const nsListIter &aIter, mozIStorageBindingParamsArray *aParamsArray = nullptr);
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void AddCookieToList(const nsCookieKey& aKey, nsCookie *aCookie, DBState *aDBState, mozIStorageBindingParamsArray *aParamsArray, bool aWriteToDB = true);
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void UpdateCookieInList(nsCookie *aCookie, int64_t aLastAccessed, mozIStorageBindingParamsArray *aParamsArray);
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static bool GetTokenValue(nsASingleFragmentCString::const_char_iterator &aIter, nsASingleFragmentCString::const_char_iterator &aEndIter, nsDependentCSubstring &aTokenString, nsDependentCSubstring &aTokenValue, bool &aEqualsFound);
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static bool ParseAttributes(nsDependentCString &aCookieHeader, nsCookieAttributes &aCookie);
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bool RequireThirdPartyCheck();
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CookieStatus CheckPrefs(nsIURI *aHostURI, bool aIsForeign, bool aRequireHostMatch, const char *aCookieHeader);
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bool CheckDomain(nsCookieAttributes &aCookie, nsIURI *aHostURI, const nsCString &aBaseDomain, bool aRequireHostMatch);
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static bool CheckPath(nsCookieAttributes &aCookie, nsIURI *aHostURI);
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static bool GetExpiry(nsCookieAttributes &aCookie, int64_t aServerTime, int64_t aCurrentTime);
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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 nsAFlatCString &aHost, const nsAFlatCString &aName, const nsAFlatCString &aPath, nsListIter &aIter);
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static void FindStaleCookie(nsCookieEntry *aEntry, int64_t aCurrentTime, nsListIter &aIter);
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void NotifyRejected(nsIURI *aHostURI);
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void NotifyThirdParty(nsIURI *aHostURI, bool aAccepted, nsIChannel *aChannel);
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void NotifyChanged(nsISupports *aSubject, const char16_t *aData);
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void NotifyPurged(nsICookie2* aCookie);
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already_AddRefed<nsIArray> CreatePurgeList(nsICookie2* aCookie);
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void UpdateCookieOldestTime(DBState* aDBState, nsCookie* aCookie);
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/**
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* This method is a helper that allows calling nsICookieManager::Remove()
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* with NeckoOriginAttributes 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 NeckoOriginAttributes& 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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// 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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// cached prefs
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uint8_t mCookieBehavior; // BEHAVIOR_{ACCEPT, REJECTFOREIGN, REJECT, LIMITFOREIGN}
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bool mThirdPartySession;
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uint16_t mMaxNumberOfCookies;
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uint16_t mMaxCookiesPerHost;
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int64_t mCookiePurgeAge;
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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 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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