SHA1.hpp

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#ifndef SHA1_HPP_XJADWV5G
#define SHA1_HPP_XJADWV5G

extern "C" {
#include "SHA1.h"
}

#include <string.h>
#include <iostream>
#include <sstream>
#include <iomanip>
#include "uscxml/Common.h"

namespace uscxml {
    USCXML_API inline std::string sha1(const char* data, size_t length) {
        SHA1Context sha;
        SHA1Reset(&sha);
        SHA1Input(&sha, (const unsigned char*)data, length);
        if (!SHA1Result(&sha)) {
            return "";
        } else {
            std::ostringstream ss;
            ss << std::hex << std::uppercase << std::setfill( '0' );
            for (size_t i = 0; i < 5; i++) {
                ss << std::setw( 2 ) << sha.Message_Digest[i];
            }

            return ss.str();
        }
    }

    USCXML_API inline std::string sha1(const std::string& data) {
        return sha1(data.data(), data.size());
    }
}

#endif /* end of include guard: SHA1_HPP_XJADWV5G */