btpair.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

''' 
BTPair - Bluetooth pairing

You may use any Piment project under the terms
of the GNU General Public License (GPL) Version 3.

(c) 2016 Emilio Mariscal (emi420 [at] gmail.com)

'''

import pexpect

class BTPair(object):

    waiting = False
    _DEVICE_NAME = "HAS"

    def __init__(self):
        waiting = False
        pexpect.spawn('hciconfig hci0 name ' + self._DEVICE_NAME)

    def wait(self):
        self.waiting = True
        self.p = pexpect.spawn('bluetoothctl')
        self.p.sendline("power on")
        self.p.sendline("agent on")
        self.p.sendline("default-agent")
        self.p.sendline("discoverable on")
        self.p.sendline("scan on")
        print "Waiting request..."
        self.p.expect('Confirm passkey', timeout=120)
        print "Request confirmation"
        self.p.sendline("yes")
        try:
            self.p.expect('Paired: yes')
            self.stop()
        except:
            self.stop()
        return "Paired"

    def stop(self):
        self.p.kill(0)
        self.waiting = False
        return "Stopped."