forked from mirrors/gecko-dev
35869db574
Backed out changeset 0c95d5dec6d9 (bug 1305801) Backed out changeset bca0e706dbc5 (bug 1305801) Backed out changeset def8da367beb (bug 1305801) Backed out changeset 56ceae52d847 (bug 1305801) Backed out changeset 14457cc4c325 (bug 1305801)
143 lines
4.5 KiB
C++
143 lines
4.5 KiB
C++
//* -*- Mode: C++; tab-width: 8; 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 Classifier_h__
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#define Classifier_h__
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#include "Entries.h"
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#include "HashStore.h"
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#include "ProtocolParser.h"
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#include "LookupCache.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "nsIFile.h"
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#include "nsICryptoHash.h"
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#include "nsDataHashtable.h"
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namespace mozilla {
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namespace safebrowsing {
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/**
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* Maintains the stores and LookupCaches for the url classifier.
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*/
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class Classifier {
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public:
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Classifier();
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~Classifier();
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nsresult Open(nsIFile& aCacheDirectory);
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void Close();
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void Reset();
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/**
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* Clear In-Memory & On-Disk data for specific tables
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*/
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void ResetTables(const nsTArray<nsCString>& aTables);
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/**
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* Get the list of active tables and their chunks in a format
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* suitable for an update request.
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*/
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void TableRequest(nsACString& aResult);
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/*
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* Get all tables that we know about.
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*/
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nsresult ActiveTables(nsTArray<nsCString>& aTables);
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/**
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* Check a URL against the specified tables.
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*/
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nsresult Check(const nsACString& aSpec,
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const nsACString& tables,
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uint32_t aFreshnessGuarantee,
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LookupResultArray& aResults);
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/**
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* Apply the table updates in the array. Takes ownership of
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* the updates in the array and clears it. Wacky!
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*/
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nsresult ApplyUpdates(nsTArray<TableUpdate*>* aUpdates);
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/**
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* Apply full hashes retrived from gethash to cache.
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*/
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nsresult ApplyFullHashes(nsTArray<TableUpdate*>* aUpdates);
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/**
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* Failed update. Spoil the entries so we don't block hosts
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* unnecessarily
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*/
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nsresult MarkSpoiled(const nsTArray<nsCString>& aTables);
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void SetLastUpdateTime(const nsACString& aTableName, uint64_t updateTime);
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int64_t GetLastUpdateTime(const nsACString& aTableName);
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nsresult CacheCompletions(const CacheResultArray& aResults);
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uint32_t GetHashKey(void) { return mHashKey; }
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/*
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* Get a bunch of extra prefixes to query for completion
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* and mask the real entry being requested
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*/
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nsresult ReadNoiseEntries(const Prefix& aPrefix,
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const nsACString& aTableName,
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uint32_t aCount,
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PrefixArray* aNoiseEntries);
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static void SplitTables(const nsACString& str, nsTArray<nsCString>& tables);
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// Given a root store directory, return a private store directory
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// based on the table name. To avoid migration issue, the private
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// store directory is only different from root directory for V4 tables.
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//
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// For V4 tables (suffixed by '-proto'), the private directory would
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// be [root directory path]/[provider]. The provider of V4 tables is
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// 'google4'.
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//
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// Note that if the table name is not owned by any provider, just use
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// the root directory.
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static nsresult GetPrivateStoreDirectory(nsIFile* aRootStoreDirectory,
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const nsACString& aTableName,
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nsIFile** aPrivateStoreDirectory);
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private:
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void DropStores();
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void DeleteTables(const nsTArray<nsCString>& aTables);
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nsresult CreateStoreDirectory();
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nsresult SetupPathNames();
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nsresult RecoverBackups();
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nsresult CleanToDelete();
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nsresult BackupTables();
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nsresult RemoveBackupTables();
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nsresult RegenActiveTables();
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nsresult ScanStoreDir(nsTArray<nsCString>& aTables);
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nsresult UpdateHashStore(nsTArray<TableUpdate*>* aUpdates,
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const nsACString& aTable);
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nsresult UpdateCache(TableUpdate* aUpdates);
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LookupCache *GetLookupCache(const nsACString& aTable);
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bool CheckValidUpdate(nsTArray<TableUpdate*>* aUpdates,
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const nsACString& aTable);
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// Root dir of the Local profile.
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nsCOMPtr<nsIFile> mCacheDirectory;
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// Main directory where to store the databases.
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nsCOMPtr<nsIFile> mRootStoreDirectory;
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// Used for atomically updating the other dirs.
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nsCOMPtr<nsIFile> mBackupDirectory;
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nsCOMPtr<nsIFile> mToDeleteDirectory;
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nsCOMPtr<nsICryptoHash> mCryptoHash;
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nsTArray<LookupCache*> mLookupCaches;
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nsTArray<nsCString> mActiveTablesCache;
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uint32_t mHashKey;
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// Stores the last time a given table was updated (seconds).
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nsDataHashtable<nsCStringHashKey, int64_t> mTableFreshness;
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};
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} // namespace safebrowsing
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} // namespace mozilla
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#endif
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