Examples of ch.ethz.ssh2.SFTPv3Client

ch.ethz.ssh2.crypto.dh.DhGroupExchange
A SFTPv3Client represents a SFTP (protocol version 3) client connection tunnelled over a SSH-2 connection. This is a very simple (synchronous) implementation.
Basically, most methods in this class map directly to one of the packet types described in draft-ietf-secsh-filexfer-02.txt.
Note: this is experimental code.
Error handling: the methods of this class throw IOExceptions. However, unless there is catastrophic failure, exceptions of the type {@link SFTPv3Client} willbe thrown (a subclass of IOException). Therefore, you can implement more verbose behavior by checking if a thrown exception if of this type. If yes, then you can cast the exception and access detailed information about the failure.
Notes about file names, directory names and paths, copy-pasted from the specs:
- SFTP v3 represents file names as strings. File names are assumed to use the slash ('/') character as a directory separator.
- File names starting with a slash are "absolute", and are relative to the root of the file system. Names starting with any other character are relative to the user's default directory (home directory).
- Servers SHOULD interpret a path name component ".." as referring to the parent directory, and "." as referring to the current directory. If the server implementation limits access to certain parts of the file system, it must be extra careful in parsing file names when enforcing such restrictions. There have been numerous reported security bugs where a ".." in a path name has allowed access outside the intended area.
- An empty path name is valid, and it refers to the user's default directory (usually the user's home directory).
If you are still not tired then please go on and read the comment for {@link #setCharset(String)}. @author Christian Plattner, plattner@inf.ethz.ch @version $Id: SFTPv3Client.java,v 1.9 2006/09/20 12:51:37 cplattne Exp $


      Session sess = conn.openSession();


      sess.execCommand("echo \"Text on STDOUT\"; echo \"Text on STDERR\" >&2");


      InputStream stdout = new StreamGobbler(sess.getStdout());
      InputStream stderr = new StreamGobbler(sess.getStderr());
  
      BufferedReader stdoutReader = new BufferedReader(new InputStreamReader(stdout));
      BufferedReader stderrReader = new BufferedReader(new InputStreamReader(stderr));
      
      System.out.println("Here is the output from stdout:");

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      Session sess = conn.openSession();


      sess.execCommand("uname -a && date && uptime && who");


      InputStream stdout = new StreamGobbler(sess.getStdout());
      BufferedReader br = new BufferedReader(new InputStreamReader(stdout));


      System.out.println("Here is some information about the remote host:");


      while (true)

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      Session sess = conn.openSession();


      sess.execCommand("uname -a && date && uptime && who");


      InputStream stdout = new StreamGobbler(sess.getStdout());


      BufferedReader br = new BufferedReader(new InputStreamReader(stdout));


      System.out.println("Here is some information about the remote host:");

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      objSSHSession = this.getSshConnection().openSession();
      logger.debug("Executing command " + checkShellCommand);
      objSSHSession.execCommand(checkShellCommand);


      logger.debug("output to stdout for remote command: " + checkShellCommand);
      ipsStdOut = new StreamGobbler(objSSHSession.getStdout());
      ipsStdErr = new StreamGobbler(objSSHSession.getStderr());
      BufferedReader stdoutReader = new BufferedReader(new InputStreamReader(ipsStdOut));
      String stdOut = "";
      while (true) {
        String line = stdoutReader.readLine();
        if (line == null)

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      this.getSshSession().execCommand(strCmd);


      logger.info("output to stdout for remote command: " + strCmd);


      ipsStdOut = new StreamGobbler(this.getSshSession().getStdout());
      ipsStdErr = new StreamGobbler(this.getSshSession().getStderr());
      BufferedReader stdoutReader = new BufferedReader(new InputStreamReader(ipsStdOut));
      strbStdoutOutput = new StringBuffer();
      while (true) {
        String line = stdoutReader.readLine();
        if (line == null)

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        {
            String message = "Cannot execute remote command: " + command;
            throw new CommandAbortedException( message, message );
        }


        InputStream stdout = new StreamGobbler( session.getStdout() );
        InputStream stderr = new StreamGobbler( session.getStderr() );
        stderrReader = new BufferedReader( new InputStreamReader( stderr ) );
        setInputStream( new LoggedDataInputStream( stdout ) );
        setOutputStream( new LoggedDataOutputStream( session.getStdin() ) );
    }

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    /* Tell the other side that we start using the new material */


    PacketNewKeys ign = new PacketNewKeys();
    tm.sendKexMessage(ign.getPayload());


    BlockCipher cbc;
    MAC mac;


    try
    {
      cbc = BlockCipherFactory.createCipher(kxs.np.enc_algo_client_to_server, true, km.enc_key_client_to_server,

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    if (msg[0] == Packets.SSH_MSG_NEWKEYS)
    {
      if (km == null)
        throw new IOException("Peer sent SSH_MSG_NEWKEYS, but I have no key material ready!");


      BlockCipher cbc;
      MAC mac;


      try
      {
        cbc = BlockCipherFactory.createCipher(kxs.np.enc_algo_server_to_client, false,

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      }


      if (kxs.np.kex_algo.equals("diffie-hellman-group1-sha1")
          || kxs.np.kex_algo.equals("diffie-hellman-group14-sha1"))
      {
        kxs.dhx = new DhExchange();


        if (kxs.np.kex_algo.equals("diffie-hellman-group1-sha1"))
          kxs.dhx.init(1, rnd);
        else
          kxs.dhx.init(14, rnd);

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    if (kxs.np.kex_algo.equals("diffie-hellman-group-exchange-sha1"))
    {
      if (kxs.state == 1)
      {
        PacketKexDhGexGroup dhgexgrp = new PacketKexDhGexGroup(msg, 0, msglen);
        kxs.dhgx = new DhGroupExchange(dhgexgrp.getP(), dhgexgrp.getG());
        kxs.dhgx.init(rnd);
        PacketKexDhGexInit dhgexinit = new PacketKexDhGexInit(kxs.dhgx.getE());
        tm.sendKexMessage(dhgexinit.getPayload());
        kxs.state = 2;
        return;

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Related Classes of ch.ethz.ssh2.SFTPv3Client

Basic

BasicWithHTTPProxy

ch.ethz.ssh2.auth.AuthenticationManager

ch.ethz.ssh2.auth.ServerAuthenticationManager

ch.ethz.ssh2.channel.ChannelManager

ch.ethz.ssh2.channel.LocalAcceptThread

ch.ethz.ssh2.Connection

ch.ethz.ssh2.ConnectionInfo

ch.ethz.ssh2.crypto.cipher.BlockCipher

ch.ethz.ssh2.crypto.dh.DhExchange

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