baseimage-tutorial-framework/tfw/components/terminal/terminal_handler.py
2019-08-07 09:47:28 +02:00

49 lines
1.3 KiB
Python

import logging
from .history_monitor import BashMonitor
from .terminado_mini_server import TerminadoMiniServer
LOG = logging.getLogger(__name__)
class TerminalHandler:
keys = ['terminal.write']
def __init__(self, *, port, user, working_directory, histfile):
self.connector, self._historymonitor = None, None
self._histfile = histfile
bash_as_user_cmd = ['sudo', '-u', user, 'bash']
self.terminado_server = TerminadoMiniServer(
'/terminal',
port,
working_directory,
bash_as_user_cmd
)
self.terminado_server.listen()
self.commands = {
'terminal.write': self.handle_write
}
def start(self):
self._historymonitor = BashMonitor(self.connector, self._histfile)
self._historymonitor.start()
@property
def historymonitor(self):
return self._historymonitor
def handle_event(self, message, _):
try:
self.commands[message['key']](message)
except KeyError:
LOG.error('IGNORING MESSAGE: Invalid message received: %s', message)
def handle_write(self, message):
self.terminado_server.pty.write(message['command'])
def cleanup(self):
self.terminado_server.stop()
self.historymonitor.stop()