Examples of ch.ethz.ssh2.sftp.AttribPermissions

ch.ethz.ssh2.signature.RSASignature
Permissions for the 'permissions' field in the SFTP ATTRS data type.
"The 'permissions' field contains a bit mask specifying file permissions. These permissions correspond to the st_mode field of the stat structure defined by POSIX [IEEE.1003-1.1996]." @author Christian Plattner, plattner@inf.ethz.ch @version $Id: AttribPermissions.java,v 1.2 2006/08/02 12:05:00 cplattne Exp $


  private SFTPv3FileAttributes statBoth(String path, int statMethod) throws IOException
  {
    int req_id = generateNextRequestID();


    TypesWriter tw = new TypesWriter();
    tw.writeString(path, charsetName);


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_STAT/SSH_FXP_LSTAT...");
      debug.flush();
    }


    sendMessage(statMethod, req_id, tw.getBytes());


    byte[] resp = receiveMessage(34000);


    if (debug != null)
    {

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   */
  public String readLink(String path) throws IOException
  {
    int req_id = generateNextRequestID();


    TypesWriter tw = new TypesWriter();
    tw.writeString(path, charsetName);


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_READLINK...");
      debug.flush();
    }


    sendMessage(Packet.SSH_FXP_READLINK, req_id, tw.getBytes());


    byte[] resp = receiveMessage(34000);


    if (debug != null)
    {

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   */
  public void setstat(String path, SFTPv3FileAttributes attr) throws IOException
  {
    int req_id = generateNextRequestID();


    TypesWriter tw = new TypesWriter();
    tw.writeString(path, charsetName);
    tw.writeBytes(createAttrs(attr));


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_SETSTAT...");
      debug.flush();
    }


    sendMessage(Packet.SSH_FXP_SETSTAT, req_id, tw.getBytes());


    expectStatusOKMessage(req_id);
  }

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  {
    checkHandleValidAndOpen(handle);


    int req_id = generateNextRequestID();


    TypesWriter tw = new TypesWriter();
    tw.writeString(handle.fileHandle, 0, handle.fileHandle.length);
    tw.writeBytes(createAttrs(attr));


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_FSETSTAT...");
      debug.flush();
    }


    sendMessage(Packet.SSH_FXP_FSETSTAT, req_id, tw.getBytes());


    expectStatusOKMessage(req_id);
  }

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    /* Either I am too stupid to understand the SFTP draft
     * or the OpenSSH guys changed the semantics of src and target.
     */


    TypesWriter tw = new TypesWriter();
    tw.writeString(target, charsetName);
    tw.writeString(src, charsetName);


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_SYMLINK...");
      debug.flush();
    }


    sendMessage(Packet.SSH_FXP_SYMLINK, req_id, tw.getBytes());


    expectStatusOKMessage(req_id);
  }

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   */
  public String canonicalPath(String path) throws IOException
  {
    int req_id = generateNextRequestID();


    TypesWriter tw = new TypesWriter();
    tw.writeString(path, charsetName);


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_REALPATH...");
      debug.flush();
    }


    sendMessage(Packet.SSH_FXP_REALPATH, req_id, tw.getBytes());


    byte[] resp = receiveMessage(34000);


    if (debug != null)
    {

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    }


    if (kxs.np.server_host_key_algo.equals("ssh-dss"))
    {
      DSASignature ds = DSASHA1Verify.decodeSSHDSASignature(sig);
      DSAPublicKey dpk = DSASHA1Verify.decodeSSHDSAPublicKey(hostkey);


      log.log(50, "Verifying ssh-dss signature");


      return DSASHA1Verify.verifySignature(kxs.H, ds, dpk);
    }

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      return RSASHA1Verify.verifySignature(kxs.H, rs, rpk);
    }


    if (kxs.np.server_host_key_algo.equals("ssh-dss"))
    {
      DSASignature ds = DSASHA1Verify.decodeSSHDSASignature(sig);
      DSAPublicKey dpk = DSASHA1Verify.decodeSSHDSAPublicKey(hostkey);


      log.log(50, "Verifying ssh-dss signature");


      return DSASHA1Verify.verifySignature(kxs.H, ds, dpk);

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  private boolean verifySignature(byte[] sig, byte[] hostkey) throws IOException
  {
    if (kxs.np.server_host_key_algo.equals("ssh-rsa"))
    {
      RSASignature rs = RSASHA1Verify.decodeSSHRSASignature(sig);
      RSAPublicKey rpk = RSASHA1Verify.decodeSSHRSAPublicKey(hostkey);


      log.log(50, "Verifying ssh-rsa signature");


      return RSASHA1Verify.verifySignature(kxs.H, rs, rpk);
    }

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  private boolean verifySignature(byte[] sig, byte[] hostkey) throws IOException
  {
    if (kxs.np.server_host_key_algo.equals("ssh-rsa"))
    {
      RSASignature rs = RSASHA1Verify.decodeSSHRSASignature(sig);
      RSAPublicKey rpk = RSASHA1Verify.decodeSSHRSAPublicKey(hostkey);


      log.log(50, "Verifying ssh-rsa signature");


      return RSASHA1Verify.verifySignature(kxs.H, rs, rpk);

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