How to use handle_prompts method in autotest

Best Python code snippet using autotest_python

remote.py

Source:remote.py

...38        self.msg = msg39        self.output = output40    def __str__(self):41        return "%s   (output: %r)" % (self.msg, self.output)42def handle_prompts(session, username, password, prompt, timeout=50,43                    debug=False):44    """45    Connect to a remote host (guest) using SSH or Telnet or other else.46    Wait for questions and provide answers. If timeout expires while47    waiting for output from the child  -- fail.48    :param session: An Expect or ShellSession instance to operate on49    :param username and password: to send in reply to a login50    :paramprompt: The shell prompt that indicates a successful login51    :raise LoginTimeoutError52    :rasie LoginAuthenticationError53    :raise LoginProcessTerminatedError54    :raise LoginError: If some other error occurs55    """56    password_prompt_count = 057    login_prompt_count = 058    while True:59        try:60            match, text = session.read_until_last_line_matches(61                        [r"[Aa]re you sure", r"[Pp]assword:\s*",62                        r"(?<![Ll]ast).*[Ll]ogin:\s*$",63                        r"[Cc]onnection.*closed", r"[Cc]onnection.*refused",64                        r"[Pp]lease wait",65                        r"[Ww]arning", r"[Ee]nter.*username",66                        r"[Ee]nter.*password", prompt67                        ],68                    timeout=timeout, internal_timeout=0.5)69            if match == 0:    # are you sure you want to continue connecting70                if debug:71                    logging.debug("Got 'Are you sure...', sending 'yes'")72                session.sendline("yes")73                continue74            elif match == 1 or match == 8:   # "password"75                if password_prompt_count == 0:76                    if debug:77                        logging.debug("Got password prompt, sending '%s'",78                                        password)79                        session.sendline(password)80                        password_prompt_count += 181                        continue82                else:83                    raise LoginAuthenticationError(84                            "Got password prompt twice", text)85            elif match == 2 or match == 7:   # "login:"86                if login_prompt_count == 0 and password_prompt_count == 0:87                    if debug:88                        logging.debug("Got username prompt; sending '%s'",89                                        username)90                    session.sendline(username)91                    login_prompt_count += 192                    continue93                else:94                    if login_prompt_count > 0:95                        msg = "Got username prompt twice"96                    else:97                        msg = "Got username prompt after password prompt"98                    raise LoginAuthenticationError(msg, text)99            elif match == 3:   # "Connection closed"100                raise LoginError("client said 'connection closed'", text)101            elif match == 4:   # "Connection refused"102                raise LoginError("client said 'connection refused'", text)103            elif match == 5:   # "Please wait"104                if debug:105                    logging.debug("Got 'Please wait'")106                timeout = 30107                continue108            elif match == 6:   # "warning added Rsa"109                if debug:110                    logging.debug("Got 'warning added RSA to known host list'")111                continue112            elif match == 9:   # prompt113                if debug:114                    logging.debug("Got shell prompt -- logged in")115                break116        except aexpect.ExpectTimeoutError, e:117            raise LoginTimeoutError(e.output)118        except aexpect.ExpectProcessTerminatedError, e:119            raise LoginProcessTerminatedError(e.status, e.output)120def remote_login(client, host, port, username, password, prompt, linesep="\n",121                    log_filename=None, timeout=10, interface=None):122    """123    log into a remote host(guest) using SSH/Telnet/Netcat.124    :param client       : the client to use ('ssh', 'telnet' or the other nc)125    :param host         : Hostname or IP address126    :param username     : Username (if required)127    :param password     : Password (if required)128    :param prompt       : shell prompt (regular expression)129    :param linesep      : The line separator to use when sending lines (e.g.130                            '\\n' or '\\r\\n')131    :param log_filename : if specified, log all output to this file132    :param timeout      : the maximal time duration (in seconds) to wait for133                          each step of the login procedure134    :interface          : The interface the neighbours attach to (only use135                            when using the ipv6 linklocal address.)136    :raise LoginError   : If using ipv6 linklocal but not assign a interface137                            that the neighbour attache138    :raise LoginBadClientError: If an unknown client is requested139    :raise Whatever handle_prompts() raises140    :return             : A ShellSession object141    """142    if host and host.lower().startswith("fe800"):143        if not interface:144            raise LoginError("When using ipv6 linklocal an interface must be"145                                " assigned")146        host = "%s%%%s" % (host, interface)147    if client == "ssh":148        cmd = ("ssh -o UserKnownHostsFile=/dev/null -o"149               " PreferredAuthentications=password -p %s %s@%s "150                % (port, username, host))151    elif client == "telnet":152        cmd = "telent -l %s %s %s" % (username, host, port)153    else:154        raise LoginBadClientError(client)155    logging.debug("Login Command: '%s'", cmd)156    # need to realize the aexpect.ShellSession157    session = aexpect.ShellSession(cmd, linesep=linesep, prompt=prompt)158    try:159        handle_prompts(session, username, password, prompt, timeout, True)160    except Exception:161        session.close()162        raise163    if log_filename:164        session.set_output_func(utils.log_line)165        session.set_output_params((log_filename,))166        session.set_log_file(log_filename)...

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