81 lines
3.1 KiB
C++
81 lines
3.1 KiB
C++
#ifndef CryptHelpers_H
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#define CryptHelpers_H
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// crypt headers
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#include "crypto51/files.h"
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#include "crypto51/filters.h"
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#include "crypto51/cryptlib.h"
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using namespace CryptoPP;
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class RageFileBasic;
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//! .
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class RageFileStore : public Store, private FilterPutSpaceHelper
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{
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public:
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class Err : public Exception
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{
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public:
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Err(const std::string &s) : Exception(IO_ERROR, s) {}
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};
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class OpenErr : public Err {public: OpenErr(const std::string &filename) : Err("FileStore: error opening file for reading: " + filename) {}};
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struct ReadErr : public Err { ReadErr( const RageFileBasic &f ); };
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RageFileStore();
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~RageFileStore();
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RageFileStore( const RageFileStore &cpy );
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RageFileStore(const char *filename)
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{StoreInitialize(MakeParameters("InputFileName", filename));}
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unsigned long MaxRetrievable() const;
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unsigned int TransferTo2(BufferedTransformation &target, unsigned long &transferBytes, const std::string &channel=NULL_CHANNEL, bool blocking=true);
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unsigned int CopyRangeTo2(BufferedTransformation &target, unsigned long &begin, unsigned long end=ULONG_MAX, const std::string &channel=NULL_CHANNEL, bool blocking=true) const;
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private:
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void StoreInitialize(const NameValuePairs ¶meters);
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mutable RageFileBasic *m_pFile; // mutable because reading from a file is not a const operation
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byte *m_space;
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int m_len;
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bool m_waiting;
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};
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//! .
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class RageFileSource : public SourceTemplate<RageFileStore>
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{
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public:
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typedef FileStore::Err Err;
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typedef FileStore::OpenErr OpenErr;
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typedef FileStore::ReadErr ReadErr;
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RageFileSource(const char *filename, bool pumpAll, BufferedTransformation *attachment = NULL, bool binary=true)
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: SourceTemplate<RageFileStore>(attachment) {SourceInitialize(pumpAll, MakeParameters("InputFileName", filename)("InputBinaryMode", binary));}
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};
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#endif
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/*
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* (c) 2001-2004 Chris Danford
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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