forked from mirrors/gecko-dev
06311d2e3a
MozReview-Commit-ID: 6oU6Ya5UXtC --HG-- extra : rebase_source : 55b6e30aa348c1b939326698b0da7d72c26b479c
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
//* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef nsCheckSummedOutputStream_h__
|
|
#define nsCheckSummedOutputStream_h__
|
|
|
|
#include "nsIFile.h"
|
|
#include "nsIOutputStream.h"
|
|
#include "nsICryptoHash.h"
|
|
#include "nsNetCID.h"
|
|
#include "nsString.h"
|
|
#include "nsToolkitCompsCID.h"
|
|
#include "../../../netwerk/base/nsBufferedStreams.h"
|
|
#include "prio.h"
|
|
|
|
class nsCheckSummedOutputStream : public nsBufferedOutputStream
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
// Size of MD5 hash in bytes
|
|
static const uint32_t CHECKSUM_SIZE = 16;
|
|
static const uint32_t MAX_BUFFER_SIZE = 64 * 1024;
|
|
|
|
nsCheckSummedOutputStream() {}
|
|
|
|
NS_IMETHOD Finish() override;
|
|
NS_IMETHOD Write(const char *buf, uint32_t count, uint32_t *result) override;
|
|
NS_IMETHOD Init(nsIOutputStream* stream, uint32_t bufferSize) override;
|
|
|
|
protected:
|
|
virtual ~nsCheckSummedOutputStream() { nsBufferedOutputStream::Close(); }
|
|
|
|
nsCOMPtr<nsICryptoHash> mHash;
|
|
nsCString mCheckSum;
|
|
};
|
|
|
|
// returns a file output stream which can be QI'ed to nsIFileOutputStream.
|
|
inline nsresult
|
|
NS_NewCheckSummedOutputStream(nsIOutputStream **result,
|
|
nsIFile *file)
|
|
{
|
|
nsCOMPtr<nsIOutputStream> localOutFile;
|
|
nsresult rv = NS_NewSafeLocalFileOutputStream(getter_AddRefs(localOutFile), file,
|
|
PR_WRONLY | PR_TRUNCATE | PR_CREATE_FILE);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIBufferedOutputStream> out = new nsCheckSummedOutputStream();
|
|
rv = out->Init(localOutFile, nsCheckSummedOutputStream::CHECKSUM_SIZE);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
out.forget(result);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
#endif
|