rstudio/src/cpp/shared_core/Hash.cpp at main · ssh352/rstudio · GitHub

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* Hash.hpp

* Unless you have received this program directly from Posit Software pursuant to the terms of a commercial license agreement

* with Posit, then this program is licensed to you under the following terms:

* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated

* documentation files (the "Software"), to deal in the Software without restriction, including without limitation the

* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to

* permit persons to whom the Software is furnished to do so, subject to the following conditions:

* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the

* Software.

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE

* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR

* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#include <shared_core/Hash.hpp>

#include <sstream>

#include <iomanip>

#include <boost/crc.hpp>

#include <boost/lexical_cast.hpp>

#include <shared_core/SafeConvert.hpp>

namespace rstudio {

namespace core {

namespace hash {

std::string crc32Hash(const std::string& content)

{

boost::crc_32_type result;

result.process_bytes(content.data(), content.length());

return safe_convert::numberToString(result.checksum());

}

std::string crc32HexHash(const std::string& content)

{

// compute checksum

boost::crc_32_type result;

result.process_bytes(content.data(), content.length());

// return hex representation; ensure padded to 8 characters

std::ostringstream output;

output << std::uppercase << std::setw(8) << std::setfill('0')

<< std::hex << result.checksum();

return output.str();

}

} // namespace hash

} // namespace core

} // namespace rstudio

rstudio/src/cpp/shared_core/Hash.cpp at main · ssh352/rstudio · GitHub

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