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Diffstat (limited to 'src/leap/Connection.py')
-rw-r--r-- | src/leap/Connection.py | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/leap/Connection.py b/src/leap/Connection.py new file mode 100644 index 00000000..6534560b --- /dev/null +++ b/src/leap/Connection.py @@ -0,0 +1,129 @@ +""" +Base Connection Classs +""" +from __future__ import (division, unicode_literals, print_function) +#import threading +from functools import partial +import logging + +from leap.utils.coroutines import spawn_and_watch_process +from leap.baseapp.config import get_config, get_vpn_stdout_mockup +from leap.eip.vpnwatcher import EIPConnectionStatus, status_watcher +from leap.eip.vpnmanager import OpenVPNManager, ConnectionRefusedError + +from leap.Configuration import Configuration +from leap.Authentication import Authentication + +logger = logging.getLogger(name=__name__) + +class Connection(Configuration, Authentication): + def __init__(self, *args, **kwargs): + self.connection_state = None + self.desired_connection_state = None + super(Connection, self).__init__(*args, **kwargs) + + def connect(self): + """ + entry point for connection process + """ + pass + + def disconnect(self): + """ + disconnects client + """ + pass + + def shutdown(self): + """ + shutdown and quit + """ + self.desired_con_state = self.status.DISCONNECTED + + def connection_state(self): + """ + returns the current connection state + """ + return self.status.current + + def desired_connection_state(self): + """ + returns the desired_connection state + """ + return self.desired_connection_state + + def poll_connection_state(self): + """ + """ + try: + state = self.get_connection_state() + except ConnectionRefusedError: + # connection refused. might be not ready yet. + return + if not state: + return + (ts, status_step, + ok, ip, remote) = state + self.status.set_vpn_state(status_step) + status_step = self.status.get_readable_status() + return (ts, status_step, ok, ip, remote) + + def get_icon_name(self): + """ + get icon name from status object + """ + return self.status.get_state_icon() + + # + # private methods + # + + def _disconnect(self): + """ + private method for disconnecting + """ + if self.subp is not None: + self.subp.terminate() + self.subp = None + # XXX signal state changes! :) + + def _is_alive(self): + """ + don't know yet + """ + pass + + def _connect(self): + """ + entry point for connection cascade methods. + """ + #conn_result = ConState.DISCONNECTED + try: + conn_result = self._try_connection() + except UnrecoverableError as except_msg: + logger.error("FATAL: %s" % unicode(except_msg)) + conn_result = self.status.UNRECOVERABLE + except Exception as except_msg: + self.error_queue.append(except_msg) + logger.error("Failed Connection: %s" % + unicode(except_msg)) + return conn_result + + + +class ConnectionError(Exception): + """ + generic connection error + """ + def __str__(self): + if len(self.args) >= 1: + return repr(self.args[0]) + else: + raise self() + + +class UnrecoverableError(ConnectionError): + """ + we cannot do anything about it, sorry + """ + pass |