/// <summary>
/// Instructs the remote server to go up one level
/// </summary>
/// <param name="server">A connected server I/O stream</param>
protected void SCP_EnterIntoParent(Stream server)
{
try {
byte[] tmp = new byte[1];
// send "C0644 filesize filename", where filename should not include '/'
string command = "E\n";
if (Verbos)
{
Console.WriteLine(command);
}
byte[] buff = StringAux.getBytes(command);
server.Write(buff, 0, buff.Length);
server.Flush();
if (SCP_CheckAck(server) != 0)
{
throw new SshTransferException("Error openning communication channel.");
}
}
catch {
}
}
internal static string unquote(string _path)
{
byte[] path = StringAux.getBytesUTF8(_path);
int pathlen = path.Length;
int i = 0;
while (i < pathlen)
{
if (path[i] == '\\')
{
if (i + 1 == pathlen)
{
break;
}
System.Array.Copy(path, i + 1, path, i, path.Length - (i + 1));
pathlen--;
continue;
}
i++;
}
if (pathlen == path.Length)
{
return(_path);
}
byte[] foo = new byte[pathlen];
System.Array.Copy(path, 0, foo, 0, pathlen);
return(StringAux.getString(foo));
}
internal static string[] split(string foo, string split)
{
byte[] buf = StringAux.getBytes(foo);
System.Collections.ArrayList bar = new System.Collections.ArrayList();
int start = 0;
int index;
while (true)
{
index = foo.IndexOf(split, start);
if (index >= 0)
{
bar.Add(StringAux.getString(buf, start, index - start));
start = index + 1;
continue;
}
bar.Add(StringAux.getString(buf, start, buf.Length - start));
break;
}
string[] result = new string[bar.Count];
for (int i = 0; i < result.Length; i++)
{
result[i] = (string)(bar[i]);
}
return(result);
}
/// <summary>
/// Transfer a file to the remote server
/// </summary>
/// <param name="server">A connected server I/O stream</param>
/// <param name="src">The source file to copy</param>
/// <param name="dst">The remote destination path</param>
protected void SCP_SendFile(Stream server, string src, string dst)
{
int filesize = 0;
int copied = 0;
filesize = (int)(new FileInfo(src)).Length;
byte[] tmp = new byte[1];
// send "C0644 filesize filename", where filename should not include '/'
string command = "C0644 " + filesize + " " + Path.GetFileName(dst) + "\n";
if (Verbos)
{
Console.WriteLine("Sending file modes: " + command);
}
SendStartMessage(src, dst, filesize, "Starting transfer.");
byte[] buff = StringAux.getBytes(command);
server.Write(buff, 0, buff.Length);
server.Flush();
if (SCP_CheckAck(server) != 0)
{
throw new SshTransferException("Error openning communication channel.");
}
// send a content of lfile
SendProgressMessage(src, dst, copied, filesize, "Transferring...");
FileStream fis = File.OpenRead(src);
byte[] buf = new byte[1024 * 10 * 2];
while (!m_cancelled)
{
int len = fis.Read(buf, 0, buf.Length);
if (len <= 0)
{
break;
}
server.Write(buf, 0, len);
server.Flush();
copied += len;
SendProgressMessage(src, dst, copied, filesize, "Transferring...");
}
fis.Close();
if (m_cancelled)
{
return;
}
// send '\0'
buf[0] = 0;
server.Write(buf, 0, 1);
server.Flush();
SendProgressMessage(src, dst, copied, filesize, "Verifying transfer...");
if (SCP_CheckAck(server) != 0)
{
SendEndMessage(src, dst, copied, filesize, "Transfer ended with an error.");
throw new SshTransferException("Unknow error during file transfer.");
}
SendEndMessage(src, dst, copied, filesize, "Transfer completed successfuly (" + copied + " bytes).");
}
/// <summary>
/// Copies a file from a remote SSH machine to the local machine using SCP.
/// </summary>
/// <param name="remoteFile">The remmote file name</param>
/// <param name="localPath">The local destination path</param>
/// <param name="recursive">Value indicating whether a recursive transfer should take place</param>
public void From(string remoteFile, string localPath, bool _recursive)
{
SCP_CheckConnectivity();
AChannel channel = null;
Stream server = null;
m_cancelled = false;
int filesize = 0;
String filename = null;
string cmd = null;
try {
String dir = null;
if (Directory.Exists(localPath))
{
dir = Path.GetFullPath(localPath);
}
SCP_ConnectFrom(out channel, out server, remoteFile, _recursive);
byte[] buf = new byte[1024];
// send '\0'
SCP_SendAck(server);
int c = SCP_CheckAck(server);
//parse scp commands
while ((c == 'D') || (c == 'C') || (c == 'E'))
{
if (m_cancelled)
{
break;
}
cmd = "" + (char)c;
if (c == 'E')
{
c = SCP_CheckAck(server);
dir = Path.GetDirectoryName(dir);
if (Verbos)
{
Console.WriteLine("E");
}
//send '\0'
SCP_SendAck(server);
c = (char)SCP_CheckAck(server);
continue;
}
// read '0644 ' or '0755 '
server.Read(buf, 0, 5);
for (int i = 0; i < 5; i++)
{
cmd += (char)buf[i];
}
//reading file size
filesize = 0;
while (true)
{
server.Read(buf, 0, 1);
if (buf[0] == ' ')
{
break;
}
filesize = filesize * 10 + (buf[0] - '0');
}
//reading file name
for (int i = 0; ; i++)
{
server.Read(buf, i, 1);
if (buf[i] == (byte)0x0a)
{
filename = StringAux.getString(buf, 0, i);
break;
}
}
cmd += " " + filesize + " " + filename;
// send '\0'
SCP_SendAck(server);
//Receive file
if (c == 'C')
{
if (Verbos)
{
Console.WriteLine("Sending file modes: " + cmd);
}
SCP_ReceiveFile(server, remoteFile,
dir == null ? localPath : dir + "/" + filename,
filesize);
if (m_cancelled)
{
break;
}
// send '\0'
SCP_SendAck(server);
}
//Enter directory
else if (c == 'D')
{
if (dir == null)
{
if (File.Exists(localPath))
{
throw new SshTransferException("'" + localPath + "' is not a directory");
}
dir = localPath;
Directory.CreateDirectory(dir);
}
if (Verbos)
{
Console.WriteLine("Entering directory: " + cmd);
}
dir += "/" + filename;
Directory.CreateDirectory(dir);
}
c = SCP_CheckAck(server);
}
channel.disconnect();
}
catch (Exception e) {
if (Verbos)
{
Console.WriteLine("Error: " + e.Message);
}
try {
channel.disconnect();
}
catch {
}
throw e;
}
}
