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129 lines
4.1 KiB
C++
129 lines
4.1 KiB
C++
//* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Url Classifier code
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*
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* The Initial Developer of the Original Code is
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* the Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Dave Camp <dcamp@mozilla.com>
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* Gian-Carlo Pascutto <gpascutto@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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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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nsresult Close();
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nsresult Reset();
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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 database.
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*/
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nsresult Check(const nsACString& aSpec, 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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* 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(nsTArray<nsCString>& aTables);
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nsresult CacheCompletions(const CacheResultArray& aResults);
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PRUint32 GetHashKey(void) { return mHashKey; };
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void SetFreshTime(PRUint32 aTime) { mFreshTime = aTime; };
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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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PRInt32 aCount,
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PrefixArray* aNoiseEntries);
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private:
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void DropStores();
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nsresult ScanStoreDir(nsTArray<nsCString>& aTables);
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nsresult ApplyTableUpdates(nsTArray<TableUpdate*>* aUpdates,
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const nsACString& aTable);
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LookupCache *GetLookupCache(const nsACString& aTable);
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nsresult InitKey();
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nsCOMPtr<nsICryptoHash> mCryptoHash;
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nsCOMPtr<nsIFile> mStoreDirectory;
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nsTArray<HashStore*> mHashStores;
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nsTArray<LookupCache*> mLookupCaches;
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PRUint32 mHashKey;
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// Stores the last time a given table was updated (seconds).
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nsDataHashtable<nsCStringHashKey, PRInt64> mTableFreshness;
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PRUint32 mFreshTime;
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};
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}
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}
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#endif
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