""" linkcheck/TelnetUrlData.py

    Copyright (C) 2000  Bastian Kleineidam

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
"""
import telnetlib,re,string,linkcheck
from HostCheckingUrlData import HostCheckingUrlData
from linkcheck import _

# regular expression for syntax checking
telnet_re =  re.compile("^telnet:[\w.\-]+$")

class TelnetUrlData(HostCheckingUrlData):
    "Url link with telnet scheme"

    def buildUrl(self):
        HostCheckingUrlData.buildUrl(self)
        if not telnet_re.match(self.urlName):
            raise linkcheck.error, _("Illegal telnet link syntax")
        self.host = string.lower(self.urlName[7:])

    def get_scheme(self):
        return "telnet"

    def checkConnection(self, config):
        HostCheckingUrlData.checkConnection(self, config)
        self.urlConnection = telnetlib.Telnet()
        self.urlConnection.open(self.host, 23)