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87 lines
3.3 KiB
C++
87 lines
3.3 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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* 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 nsCheckSummedOutputStream_h__
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#define nsCheckSummedOutputStream_h__
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#include "nsILocalFile.h"
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#include "nsIFile.h"
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#include "nsIOutputStream.h"
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#include "nsICryptoHash.h"
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#include "nsNetCID.h"
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#include "nsString.h"
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#include "../../../netwerk/base/src/nsFileStreams.h"
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#include "nsToolkitCompsCID.h"
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class nsCheckSummedOutputStream : public nsSafeFileOutputStream
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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// Size of MD5 hash in bytes
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static const PRUint32 CHECKSUM_SIZE = 16;
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nsCheckSummedOutputStream() {}
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virtual ~nsCheckSummedOutputStream() { nsSafeFileOutputStream::Close(); }
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NS_IMETHOD Finish();
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NS_IMETHOD Write(const char *buf, PRUint32 count, PRUint32 *result);
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NS_IMETHOD Init(nsIFile* file, PRInt32 ioFlags, PRInt32 perm, PRInt32 behaviorFlags);
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protected:
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nsCOMPtr<nsICryptoHash> mHash;
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nsCAutoString mCheckSum;
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};
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// returns a file output stream which can be QI'ed to nsIFileOutputStream.
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inline nsresult
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NS_NewCheckSummedOutputStream(nsIOutputStream **result,
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nsIFile *file,
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PRInt32 ioFlags = -1,
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PRInt32 perm = -1,
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PRInt32 behaviorFlags = 0)
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{
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nsCOMPtr<nsIFileOutputStream> out = new nsCheckSummedOutputStream();
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nsresult rv = out->Init(file, ioFlags, perm, behaviorFlags);
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if (NS_SUCCEEDED(rv))
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NS_ADDREF(*result = out); // cannot use nsCOMPtr::swap
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return rv;
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}
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#endif
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