public static string GetCrc32String(byte[] buffer)
{
Crc32Hash crc32 = new Crc32Hash();
crc32.Append(buffer);
byte[] retVal = crc32.Finish();
return(BitConverter.ToString(retVal).Replace("-", ""));
}
/// <summary>
///
/// </summary>
/// <param name="buffer"></param>
/// <returns></returns>
public static byte[] GetCrc32Bytes(byte[] buffer)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
Crc32Hash crc32 = new Crc32Hash();
crc32.Append(buffer);
return(crc32.Finish());
}
/// <summary>
///
/// </summary>
/// <param name="buffer"></param>
/// <returns></returns>
public static string GetCrc32String(byte[] buffer)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
Crc32Hash crc32 = new Crc32Hash();
crc32.Append(buffer);
byte[] retVal = crc32.Finish();
return(BitConverter.ToString(retVal).Replace("-", ""));
}
public override void Copy(string sourceFile, string destFile)
{
_map();
FtpUrlInfo urlSource = new FtpUrlInfo(sourceFile);
FtpUrlInfo urlDest = new FtpUrlInfo(destFile);
if (urlSource.Scheme == "sftp")
{
var entry = _entries[urlSource.Path];
if (_db.Exists(urlSource.Path, entry))
{
var data = _db.Get(urlSource.Path);
File.WriteAllBytes(destFile, data);
}
else
{
DbDebugHelper.OnSftpUpdate("downloading " + urlSource.Path);
_sftp.Get(urlSource.Path, destFile);
DbDebugHelper.OnSftpUpdate("caching " + urlSource.Path);
_db.Set(destFile, urlSource.Path, entry);
}
}
else
{
if (_entries.ContainsKey(urlDest.Path))
{
var entry = _entries[urlDest.Path];
if (_db.Exists(urlDest.Path, entry))
{
byte[] dataDest = _db.Get(urlDest.Path);
byte[] dataSource = File.ReadAllBytes(sourceFile);
Crc32Hash hash = new Crc32Hash();
if (dataDest.Length == dataSource.Length && hash.ComputeHash(dataDest) == hash.ComputeHash(dataSource))
{
// do not upload the same file
}
else
{
DbDebugHelper.OnSftpUpdate("uploading " + urlDest.Path);
_sftp.Put(sourceFile, urlDest.Path);
DbDebugHelper.OnSftpUpdate("updating cached version for " + urlDest.Path);
var newEntry = _sftp.GetFileListAdv(urlDest.Path)[0];
_db.Set(sourceFile, urlDest.Path, newEntry);
_entries[urlDest.Path] = newEntry;
}
}
else
{
DbDebugHelper.OnSftpUpdate("uploading " + urlDest.Path);
_sftp.Put(sourceFile, urlDest.Path);
DbDebugHelper.OnSftpUpdate("updating cached version for " + urlDest.Path);
var newEntry = _sftp.GetFileListAdv(urlDest.Path)[0];
_db.Set(sourceFile, urlDest.Path, newEntry);
_entries[urlDest.Path] = newEntry;
}
}
else
{
DbDebugHelper.OnSftpUpdate("uploading new file " + urlDest.Path);
_sftp.Put(sourceFile, urlDest.Path);
}
}
}
