conch.py 文件源码

def handleInput(self, char):
        #log.msg('handling %s' % repr(char))
        if char in ('\n', '\r'):
            self.escapeMode = 1
            self.write(char)
        elif self.escapeMode == 1 and char == options['escape']:
            self.escapeMode = 2
        elif self.escapeMode == 2:
            self.escapeMode = 1 # so we can chain escapes together
            if char == '.': # disconnect
                log.msg('disconnecting from escape')
                stopConnection()
                return
            elif char == '\x1a': # ^Z, suspend
                def _():
                    _leaveRawMode()
                    sys.stdout.flush()
                    sys.stdin.flush()
                    os.kill(os.getpid(), signal.SIGTSTP)
                    _enterRawMode()
                reactor.callLater(0, _)
                return
            elif char == 'R': # rekey connection
                log.msg('rekeying connection')
                self.conn.transport.sendKexInit()
                return
            elif char == '#': # display connections
                self.stdio.write('\r\nThe following connections are open:\r\n')
                channels = self.conn.channels.keys()
                channels.sort()
                for channelId in channels:
                    self.stdio.write('  #%i %s\r\n' % (channelId, str(self.conn.channels[channelId])))
                return
            self.write('~' + char)
        else:
            self.escapeMode = 0
            self.write(char)