public static void Copy(string source, string dest)
{
if (!FileEx.Exists(source))
{
throw new IOException("Source not exist.");
}
if (FileEx.Exists(dest))
{
throw new IOException("Dest already exist.");
}
IOTools.Copy(source, dest);
}
/// <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>
/// Open a file stream, used by FileStreamEx
/// </summary>
internal static void openStream(IStorage parentStorage, string filename, ref FileMode mode, ref FileAccess access, out IntPtr streamPtr, out IStream stream)
{
ShellAPI.STGM grfmode = ShellAPI.STGM.SHARE_DENY_WRITE;
switch (access)
{
case FileAccess.ReadWrite:
grfmode |= ShellAPI.STGM.READWRITE;
break;
case FileAccess.Write:
grfmode |= ShellAPI.STGM.WRITE;
break;
}
switch (mode)
{
case FileMode.Create:
if (FileEx.Exists(filename))
{
grfmode |= ShellAPI.STGM.CREATE;
}
break;
case FileMode.CreateNew:
grfmode |= ShellAPI.STGM.CREATE;
break;
}
if (parentStorage != null)
{
if (parentStorage.OpenStream(
filename,
IntPtr.Zero,
grfmode,
0,
out streamPtr) == ShellAPI.S_OK)
{
stream = (IStream)Marshal.GetTypedObjectForIUnknown(streamPtr, typeof(IStream));
}
else if (access != FileAccess.Read)
{
//Create file if not exists
if (parentStorage.CreateStream(
filename, ShellAPI.STGM.WRITE, 0, 0, out streamPtr) == ShellAPI.S_OK)
{
stream = (IStream)Marshal.GetTypedObjectForIUnknown(streamPtr, typeof(IStream));
}
else
{
throw new IOException(String.Format("Can't open stream: {0}", filename));
}
}
else
{
throw new IOException(String.Format("Can't open stream: {0}", filename));
}
}
else
{
throw new IOException(String.Format("Can't open stream: {0}", filename));
}
}
