mirror of https://github.com/qpdf/qpdf.git
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
#ifndef MD5_HH
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#define MD5_HH
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#include <qpdf/QPDFCryptoImpl.hh>
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#include <qpdf/Types.h>
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#include <memory>
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#include <string>
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class MD5
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{
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public:
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typedef unsigned char Digest[16];
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MD5();
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void reset();
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// encodes string and finalizes
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void encodeString(char const* input_string);
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// encodes file and finalizes; offset < 0 reads whole file
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void encodeFile(char const* filename, qpdf_offset_t up_to_offset = -1);
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// appends string to current md5 object
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void appendString(char const* input_string);
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// appends arbitrary data to current md5 object
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void encodeDataIncrementally(char const* input_data, size_t len);
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// computes a raw digest
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void digest(Digest);
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// prints the digest to stdout terminated with \r\n (primarily for testing)
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void print();
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// returns the digest as a hexadecimal string
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std::string unparse();
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// Convenience functions
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static std::string getDataChecksum(char const* buf, size_t len);
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static std::string getFileChecksum(char const* filename, qpdf_offset_t up_to_offset = -1);
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static bool checkDataChecksum(char const* const checksum, char const* buf, size_t len);
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static bool checkFileChecksum(
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char const* const checksum, char const* filename, qpdf_offset_t up_to_offset = -1);
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private:
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void init();
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void finalize();
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std::shared_ptr<QPDFCryptoImpl> crypto;
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};
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#endif // MD5_HH
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