/// <summary>
/// Return file crc of the specified file
/// </summary>
public static string GetFileCRC(string filename)
{
if (!FileEx.Exists(filename))
{
return("");
}
Fesersoft.Hashing.crc32 crc32 = new Fesersoft.Hashing.crc32();
using (FileStreamEx stmcheck = FileEx.OpenRead(filename))
{
uint crchash = (uint)crc32.CRC(stmcheck);
stmcheck.Close();
return(ConvertToHex(crchash));
}
}
public static string GetFileMD5(string filename)
{
if (!FileEx.Exists(filename))
{
return("");
}
MD5CryptoServiceProvider csp = new MD5CryptoServiceProvider();
using (FileStreamEx stmcheck = FileEx.OpenRead(filename))
{
byte[] hash = csp.ComputeHash(stmcheck);
stmcheck.Close();
return(BitConverter.ToString(hash).Replace("-", "").ToLower());
}
}
/// <summary>
/// Copy directory or file, take full path of source and dest as parameter.
/// </summary>
public static void CopyFile(string source, string dest, FileCancelDelegate cancel)
{
using (FileStreamEx srcStream = FileEx.OpenRead(source))
{
byte[] buffer = new byte[Math.Min(1024 * 1024 * 32, srcStream.Length)]; //32MB
int readCount;
ushort completePercent = 0;
long completeCount = 0;
using (FileStreamEx destStream = FileEx.Create(dest))
{
while ((readCount = srcStream.Read(buffer, 0, buffer.Length)) > 0 && !IsCancelTriggered(cancel, completePercent))
{
completeCount += readCount;
destStream.Write(buffer, 0, readCount);
completePercent = srcStream.Length == 0 ? (ushort)100 : (ushort)((float)completeCount / (float)srcStream.Length * 100.0);
}
destStream.Flush();
destStream.Close();
}
srcStream.Close();
}
}
