/// <summary>
/// Sets the hash algorithm on the server to be used with the HASH command asynchronously.
/// </summary>
internal async Task SetHashAlgorithmInternalAsync(FtpHashAlgorithm algorithm, CancellationToken token = default(CancellationToken))
{
FtpReply reply;
// skip setting the hash algo if the server is already configured to it
if (_LastHashAlgo == algorithm)
{
return;
}
if ((HashAlgorithms & algorithm) != algorithm)
{
throw new NotImplementedException("The hash algorithm " + algorithm.ToString() + " was not advertised by the server.");
}
string algoName = HashAlgos.PrintToString(algorithm);
if (!(reply = await ExecuteAsync("OPTS HASH " + algoName, token)).Success)
{
throw new FtpCommandException(reply);
}
// save the current hash algo so no need to repeat this command
_LastHashAlgo = algorithm;
}
/// <summary>
/// Sets the hash algorithm on the server to use for the HASH command.
/// </summary>
internal void SetHashAlgorithmInternal(FtpHashAlgorithm algorithm)
{
FtpReply reply;
// skip setting the hash algo if the server is already configured to it
if (_LastHashAlgo == algorithm)
{
return;
}
#if !CORE14
lock (m_lock) {
#endif
if ((HashAlgorithms & algorithm) != algorithm)
{
throw new NotImplementedException("The hash algorithm " + algorithm.ToString() + " was not advertised by the server.");
}
string algoName = HashAlgos.PrintToString(algorithm);
if (!(reply = Execute("OPTS HASH " + algoName)).Success)
{
throw new FtpCommandException(reply);
}
// save the current hash algo so no need to repeat this command
_LastHashAlgo = algorithm;
#if !CORE14
}
#endif
}
