/// <summary>
/// Get the first checksum algorithm mutually supported by both servers.
/// </summary>
private FtpHashAlgorithm GetFirstMutualChecksum(FtpClient destination)
{
// special handling for HASH command which is a meta-command supporting all hash types
if (HasFeature(FtpCapability.HASH) && destination.HasFeature(FtpCapability.HASH))
{
if (HashAlgorithms.HasFlag(FtpHashAlgorithm.MD5) && destination.HashAlgorithms.HasFlag(FtpHashAlgorithm.MD5))
{
return(FtpHashAlgorithm.MD5);
}
if (HashAlgorithms.HasFlag(FtpHashAlgorithm.SHA1) && destination.HashAlgorithms.HasFlag(FtpHashAlgorithm.SHA1))
{
return(FtpHashAlgorithm.SHA1);
}
if (HashAlgorithms.HasFlag(FtpHashAlgorithm.SHA256) && destination.HashAlgorithms.HasFlag(FtpHashAlgorithm.SHA256))
{
return(FtpHashAlgorithm.SHA256);
}
if (HashAlgorithms.HasFlag(FtpHashAlgorithm.SHA512) && destination.HashAlgorithms.HasFlag(FtpHashAlgorithm.SHA512))
{
return(FtpHashAlgorithm.SHA512);
}
if (HashAlgorithms.HasFlag(FtpHashAlgorithm.CRC) && destination.HashAlgorithms.HasFlag(FtpHashAlgorithm.CRC))
{
return(FtpHashAlgorithm.CRC);
}
}
// handling for non-standard specific hashing commands
if (HasFeature(FtpCapability.MD5) && destination.HasFeature(FtpCapability.MD5))
{
return(FtpHashAlgorithm.MD5);
}
if (HasFeature(FtpCapability.XMD5) && destination.HasFeature(FtpCapability.XMD5))
{
return(FtpHashAlgorithm.MD5);
}
if (HasFeature(FtpCapability.MMD5) && destination.HasFeature(FtpCapability.MMD5))
{
return(FtpHashAlgorithm.MD5);
}
if (HasFeature(FtpCapability.XSHA1) && destination.HasFeature(FtpCapability.XSHA1))
{
return(FtpHashAlgorithm.SHA1);
}
if (HasFeature(FtpCapability.XSHA256) && destination.HasFeature(FtpCapability.XSHA256))
{
return(FtpHashAlgorithm.SHA256);
}
if (HasFeature(FtpCapability.XSHA512) && destination.HasFeature(FtpCapability.XSHA512))
{
return(FtpHashAlgorithm.SHA512);
}
if (HasFeature(FtpCapability.XCRC) && destination.HasFeature(FtpCapability.XCRC))
{
return(FtpHashAlgorithm.CRC);
}
return(FtpHashAlgorithm.NONE);
}
private async Task <bool> VerifyFXPTransferAsync(string sourcePath, FtpClient fxpDestinationClient, string remotePath, CancellationToken token = default(CancellationToken))
{
// verify args
if (sourcePath.IsBlank())
{
throw new ArgumentException("Required parameter is null or blank.", "localPath");
}
if (remotePath.IsBlank())
{
throw new ArgumentException("Required parameter is null or blank.", "remotePath");
}
if (fxpDestinationClient is null)
{
throw new ArgumentNullException("Destination FXP FtpClient cannot be null!", "fxpDestinationClient");
}
if ((HasFeature(FtpCapability.HASH) && fxpDestinationClient.HasFeature(FtpCapability.HASH)) || (HasFeature(FtpCapability.MD5) && fxpDestinationClient.HasFeature(FtpCapability.MD5)) ||
(HasFeature(FtpCapability.XMD5) && fxpDestinationClient.HasFeature(FtpCapability.XMD5)) || (HasFeature(FtpCapability.XCRC) && fxpDestinationClient.HasFeature(FtpCapability.XCRC)) ||
(HasFeature(FtpCapability.XSHA1) && fxpDestinationClient.HasFeature(FtpCapability.XSHA1)) || (HasFeature(FtpCapability.XSHA256) & fxpDestinationClient.HasFeature(FtpCapability.XSHA256)) ||
(HasFeature(FtpCapability.XSHA512) && fxpDestinationClient.HasFeature(FtpCapability.XSHA512)))
{
FtpHash sourceHash = await GetChecksumAsync(sourcePath, token);
if (!sourceHash.IsValid)
{
return(false);
}
FtpHash destinationHash = await fxpDestinationClient.GetChecksumAsync(remotePath, token);
if (!destinationHash.IsValid)
{
return(false);
}
return(sourceHash.Value == destinationHash.Value);
}
else
{
LogLine(FtpTraceLevel.Info, "Source and Destination does not support the same hash algorythm");
}
//Not supported return true to ignore validation
return(true);
}
private bool IsWrongMachineListing()
{
return(CurrentParser == FtpParser.Machine && client != null && !client.HasFeature(FtpCapability.MLSD));
}
