Examples of com.trilead.ssh2.packets.TypesReader

ch.ethz.ssh2.packets.TypesReader
TypesReader. @author Christian Plattner, plattner@inf.ethz.ch @version $Id: TypesReader.java,v 1.6 2006/08/31 20:04:29 cplattne Exp $

      log.log(80, "Got SSH_MSG_CHANNEL_WINDOW_ADJUST (channel " + id + ", " + windowChange + ")");
  }


  public void msgChannelOpen(byte[] msg, int msglen) throws IOException
  {
    TypesReader tr = new TypesReader(msg, 0, msglen);


    tr.readByte(); // skip packet type
    String channelType = tr.readString();
    int remoteID = tr.readUINT32(); /* sender channel */
    int remoteWindow = tr.readUINT32(); /* initial window size */
    int remoteMaxPacketSize = tr.readUINT32(); /* maximum packet size */


    if ("x11".equals(channelType))
    {
      synchronized (x11_magic_cookies)
      {
        /* If we did not request X11 forwarding, then simply ignore this bogus request. */


        if (x11_magic_cookies.size() == 0)
        {
          PacketChannelOpenFailure pcof = new PacketChannelOpenFailure(remoteID,
              Packets.SSH_OPEN_ADMINISTRATIVELY_PROHIBITED, "X11 forwarding not activated", "");


          tm.sendAsynchronousMessage(pcof.getPayload());


          if (log.isEnabled())
            log.log(20, "Unexpected X11 request, denying it!");


          return;
        }
      }


      String remoteOriginatorAddress = tr.readString();
      int remoteOriginatorPort = tr.readUINT32();


      Channel c = new Channel(this);


      synchronized (c)
      {
        c.remoteID = remoteID;
        c.remoteWindow = remoteWindow & 0xFFFFffffL; /* properly convert UINT32 to long */
        c.remoteMaxPacketSize = remoteMaxPacketSize;
        c.localID = addChannel(c);
      }


      /*
       * The open confirmation message will be sent from another thread
       */


      RemoteX11AcceptThread rxat = new RemoteX11AcceptThread(c, remoteOriginatorAddress, remoteOriginatorPort);
      rxat.setDaemon(true);
      rxat.start();


      return;
    }


    if ("forwarded-tcpip".equals(channelType))
    {
      String remoteConnectedAddress = tr.readString(); /* address that was connected */
      int remoteConnectedPort = tr.readUINT32(); /* port that was connected */
      String remoteOriginatorAddress = tr.readString(); /* originator IP address */
      int remoteOriginatorPort = tr.readUINT32(); /* originator port */


      RemoteForwardingData rfd = null;


      synchronized (remoteForwardings)
      {

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      log.log(20, "The peer tried to open an unsupported channel type (" + channelType + ")");
  }


  public void msgChannelRequest(byte[] msg, int msglen) throws IOException
  {
    TypesReader tr = new TypesReader(msg, 0, msglen);


    tr.readByte(); // skip packet type
    int id = tr.readUINT32();


    Channel c = getChannel(id);


    if (c == null)
      throw new IOException("Unexpected SSH_MSG_CHANNEL_REQUEST message for non-existent channel " + id);


    String type = tr.readString("US-ASCII");
    boolean wantReply = tr.readBoolean();


    if (log.isEnabled())
      log.log(80, "Got SSH_MSG_CHANNEL_REQUEST (channel " + id + ", '" + type + "')");


    if (type.equals("exit-status"))
    {
      if (wantReply != false)
        throw new IOException("Badly formatted SSH_MSG_CHANNEL_REQUEST message, 'want reply' is true");


      int exit_status = tr.readUINT32();


      if (tr.remain() != 0)
        throw new IOException("Badly formatted SSH_MSG_CHANNEL_REQUEST message");


      synchronized (c)
      {
        c.exit_status = new Integer(exit_status);
        c.notifyAll();
      }


      if (log.isEnabled())
        log.log(50, "Got EXIT STATUS (channel " + id + ", status " + exit_status + ")");


      return;
    }


    if (type.equals("exit-signal"))
    {
      if (wantReply != false)
        throw new IOException("Badly formatted SSH_MSG_CHANNEL_REQUEST message, 'want reply' is true");


      String signame = tr.readString("US-ASCII");
      tr.readBoolean();
      tr.readString();
      tr.readString();


      if (tr.remain() != 0)
        throw new IOException("Badly formatted SSH_MSG_CHANNEL_REQUEST message");


      synchronized (c)
      {
        c.exit_signal = signame;

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  public void msgChannelOpenFailure(byte[] msg, int msglen) throws IOException
  {
    if (msglen < 5)
      throw new IOException("SSH_MSG_CHANNEL_OPEN_FAILURE message has wrong size (" + msglen + ")");


    TypesReader tr = new TypesReader(msg, 0, msglen);


    tr.readByte(); // skip packet type
    int id = tr.readUINT32(); /* sender channel */


    Channel c = getChannel(id);


    if (c == null)
      throw new IOException("Unexpected SSH_MSG_CHANNEL_OPEN_FAILURE message for non-existent channel " + id);


    int reasonCode = tr.readUINT32();
    String description = tr.readString("UTF-8");


    String reasonCodeSymbolicName = null;


    switch (reasonCode)
    {

View Full Code Here


  public void msgGlobalRequest(byte[] msg, int msglen) throws IOException
  {
    /* Currently we do not support any kind of global request */


    TypesReader tr = new TypesReader(msg, 0, msglen);


    tr.readByte(); // skip packet type
    String requestName = tr.readString();
    boolean wantReply = tr.readBoolean();


    if (wantReply)
    {
      byte[] reply_failure = new byte[1];
      reply_failure[0] = Packets.SSH_MSG_REQUEST_FAILURE;

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    log.debug("Sending SSH_FXP_FSTAT...");
    sendMessage(Packet.SSH_FXP_FSTAT, req_id, tw.getBytes());


    byte[] resp = receiveMessage(34000);


    TypesReader tr = new TypesReader(resp);


    int t = tr.readByte();
    listener.read(Packet.forName(t));


    int rep_id = tr.readUINT32();
    if (rep_id != req_id)
    {
      throw new RequestMismatchException();
    }


    if (t == Packet.SSH_FXP_ATTRS)
    {
      return readAttrs(tr);
    }


    if (t != Packet.SSH_FXP_STATUS)
    {
      throw new PacketTypeException(t);
    }


    int errorCode = tr.readUINT32();
    String errorMessage = tr.readString();
    listener.read(errorMessage);
    throw new SFTPException(errorMessage, errorCode);
  }

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    log.debug("Sending SSH_FXP_STAT/SSH_FXP_LSTAT...");
    sendMessage(statMethod, req_id, tw.getBytes());


    byte[] resp = receiveMessage(34000);


    TypesReader tr = new TypesReader(resp);


    int t = tr.readByte();
    listener.read(Packet.forName(t));


    int rep_id = tr.readUINT32();
    if (rep_id != req_id)
    {
      throw new RequestMismatchException();
    }


    if (t == Packet.SSH_FXP_ATTRS)
    {
      return readAttrs(tr);
    }


    if (t != Packet.SSH_FXP_STATUS)
    {
      throw new PacketTypeException(t);
    }


    int errorCode = tr.readUINT32();
    String errorMessage = tr.readString();
    listener.read(errorMessage);
    throw new SFTPException(errorMessage, errorCode);
  }

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    log.debug("Sending SSH_FXP_READLINK...");
    sendMessage(Packet.SSH_FXP_READLINK, req_id, tw.getBytes());


    byte[] resp = receiveMessage(34000);


    TypesReader tr = new TypesReader(resp);


    int t = tr.readByte();
    listener.read(Packet.forName(t));


    int rep_id = tr.readUINT32();
    if (rep_id != req_id)
    {
      throw new RequestMismatchException();
    }


    if (t == Packet.SSH_FXP_NAME)
    {
      int count = tr.readUINT32();


      if (count != 1)
      {
        throw new IOException("The server sent an invalid SSH_FXP_NAME packet.");
      }


      return tr.readString(charsetName);
    }


    if (t != Packet.SSH_FXP_STATUS)
    {
      throw new PacketTypeException(t);
    }


    int errorCode = tr.readUINT32();
    String errorMessage = tr.readString();
    listener.read(errorMessage);
    throw new SFTPException(errorMessage, errorCode);
  }

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  private void expectStatusOKMessage(int id) throws IOException
  {
    byte[] resp = receiveMessage(34000);


    TypesReader tr = new TypesReader(resp);


    int t = tr.readByte();
    listener.read(Packet.forName(t));


    int rep_id = tr.readUINT32();
    if (rep_id != id)
    {
      throw new RequestMismatchException();
    }


    if (t != Packet.SSH_FXP_STATUS)
    {
      throw new PacketTypeException(t);
    }


    int errorCode = tr.readUINT32();


    if (errorCode == ErrorCodes.SSH_FX_OK)
    {
      return;
    }
    String errorMessage = tr.readString();
    listener.read(errorMessage);
    throw new SFTPException(errorMessage, errorCode);
  }

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    log.debug("Sending SSH_FXP_REALPATH...");
    sendMessage(Packet.SSH_FXP_REALPATH, req_id, tw.getBytes());


    byte[] resp = receiveMessage(34000);


    TypesReader tr = new TypesReader(resp);


    int t = tr.readByte();
    listener.read(Packet.forName(t));


    int rep_id = tr.readUINT32();
    if (rep_id != req_id)
    {
      throw new RequestMismatchException();
    }


    if (t == Packet.SSH_FXP_NAME)
    {
      int count = tr.readUINT32();


      if (count != 1)
      {
        throw new IOException("The server sent an invalid SSH_FXP_NAME packet.");
      }


      final String name = tr.readString(charsetName);
      listener.read(name);
      return name;
    }


    if (t != Packet.SSH_FXP_STATUS)
    {
      throw new PacketTypeException(t);
    }


    int errorCode = tr.readUINT32();
    String errorMessage = tr.readString();
    listener.read(errorMessage);
    throw new SFTPException(errorMessage, errorCode);
  }

View Full Code Here

      log.debug("Sending SSH_FXP_READDIR...");
      sendMessage(Packet.SSH_FXP_READDIR, req_id, tw.getBytes());


      byte[] resp = receiveMessage(34000);


      TypesReader tr = new TypesReader(resp);


      int t = tr.readByte();
      listener.read(Packet.forName(t));


      int rep_id = tr.readUINT32();
      if (rep_id != req_id)
      {
        throw new RequestMismatchException();
      }


      if (t == Packet.SSH_FXP_NAME)
      {
        int count = tr.readUINT32();


        log.debug("Parsing " + count + " name entries...");
        while (count > 0)
        {
          SFTPv3DirectoryEntry dirEnt = new SFTPv3DirectoryEntry();


          dirEnt.filename = tr.readString(charsetName);
          dirEnt.longEntry = tr.readString(charsetName);
          listener.read(dirEnt.longEntry);


          dirEnt.attributes = readAttrs(tr);
          files.add(dirEnt);


          log.debug("File: '" + dirEnt.filename + "'");
          count--;
        }
        continue;
      }


      if (t != Packet.SSH_FXP_STATUS)
      {
        throw new PacketTypeException(t);
      }


      int errorCode = tr.readUINT32();


      if (errorCode == ErrorCodes.SSH_FX_EOF)
      {
        return files;
      }
      String errorMessage = tr.readString();
      listener.read(errorMessage);
      throw new SFTPException(errorMessage, errorCode);
    }
  }

View Full Code Here

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