Antoine Prieels
b62d98e9a8
Add a config file for eftdvs. This was requested during the certification to allow user to change the config of the terminal. TaskID: 1932416
497 lines
17 KiB
Python
Executable File
497 lines
17 KiB
Python
Executable File
#!/usr/bin/python3
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import logging
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import time
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from threading import Thread, Event, Lock
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from usb import core
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from gatt import DeviceManager as Gatt_DeviceManager
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import subprocess
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import netifaces
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import json
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from re import sub
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import urllib3
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import os
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import socket
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from importlib import util
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import v4l2
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from fcntl import ioctl
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from cups import Connection as cups_connection
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from glob import glob
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from base64 import b64decode
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from pathlib import Path
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import socket
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import ctypes
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from odoo import http, _
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from odoo.modules.module import get_resource_path
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_logger = logging.getLogger(__name__)
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#----------------------------------------------------------
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# Helper
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#----------------------------------------------------------
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def get_mac_address():
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try:
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return netifaces.ifaddresses('eth0')[netifaces.AF_LINK][0]['addr']
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except:
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return netifaces.ifaddresses('wlan0')[netifaces.AF_LINK][0]['addr']
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def get_ip():
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try:
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return netifaces.ifaddresses('eth0')[netifaces.AF_INET][0]['addr']
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except:
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return netifaces.ifaddresses('wlan0')[netifaces.AF_INET][0]['addr']
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def read_file_first_line(filename):
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path = Path.home() / filename
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if path.exists():
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with path.open('r') as f:
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return f.readline().strip('\n')
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return ''
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def get_odoo_server_url():
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return read_file_first_line('odoo-remote-server.conf')
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def get_token():
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return read_file_first_line('token')
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def get_version():
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return '19_07'
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#----------------------------------------------------------
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# Controllers
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#----------------------------------------------------------
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class StatusController(http.Controller):
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@http.route('/hw_drivers/action', type='json', auth='none', cors='*', csrf=False, save_session=False)
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def action(self, session_id, device_id, data):
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"""
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This route is called when we want to make a action with device (take picture, printing,...)
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We specify in data from which session_id that action is called
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And call the action of specific device
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"""
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iot_device = iot_devices.get(device_id)
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if iot_device:
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iot_device.data['owner'] = session_id
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data = json.loads(data)
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iot_device.action(data)
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return True
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return False
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@http.route('/hw_drivers/event', type='json', auth='none', cors='*', csrf=False, save_session=False)
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def event(self, listener):
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"""
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listener is a dict in witch there are a sessions_id and a dict of device_id to listen
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"""
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req = event_manager.add_request(listener)
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if req['event'].wait(50):
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req['event'].clear()
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req['result']['session_id'] = req['session_id']
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return req['result']
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@http.route('/hw_drivers/box/connect', type='http', auth='none', cors='*', csrf=False, save_session=False)
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def connect_box(self, token):
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"""
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This route is called when we want that a IoT Box will be connected to a Odoo DB
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token is a base 64 encoded string and have 2 argument separate by |
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1 - url of odoo DB
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2 - token. This token will be compared to the token of Odoo. He have 1 hour lifetime
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"""
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server = get_odoo_server_url()
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image = get_resource_path('hw_drivers', 'static/img', 'False.jpg')
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if server == '':
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token = b64decode(token).decode('utf-8')
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url, token = token.split('|')
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try:
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subprocess.check_call([get_resource_path('point_of_sale', 'tools/posbox/configuration/connect_to_server.sh'), url, '', token, 'noreboot'])
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m.send_alldevices()
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image = get_resource_path('hw_drivers', 'static/img', 'True.jpg')
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except subprocess.CalledProcessError as e:
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_logger.error('A error encountered : %s ' % e.output)
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if os.path.isfile(image):
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with open(image, 'rb') as f:
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return f.read()
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#----------------------------------------------------------
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# Drivers
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#----------------------------------------------------------
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drivers = []
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bt_devices = {}
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socket_devices = {}
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iot_devices = {}
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class DriverMetaClass(type):
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def __new__(cls, clsname, bases, attrs):
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newclass = super(DriverMetaClass, cls).__new__(cls, clsname, bases, attrs)
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# Some drivers must be tried only when all the others have been ruled out. These are kept at the bottom of the list.
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if newclass.is_tested_last:
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drivers.append(newclass)
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else:
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drivers.insert(0, newclass)
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return newclass
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class Driver(Thread, metaclass=DriverMetaClass):
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"""
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Hook to register the driver into the drivers list
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"""
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connection_type = ""
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is_tested_last = False
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def __init__(self, device):
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super(Driver, self).__init__()
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self.dev = device
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self.data = {'value': ''}
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self.gatt_device = False
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@property
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def device_name(self):
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return self._device_name
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@property
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def device_identifier(self):
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return self.dev.identifier
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@property
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def device_connection(self):
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"""
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On specific driver override this method to give connection type of device
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return string
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possible value : direct - network - bluetooth - serial
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"""
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return self._device_connection
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@property
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def device_type(self):
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"""
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On specific driver override this method to give type of device
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return string
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possible value : printer - camera - device
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"""
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return self._device_type
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@classmethod
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def supported(cls, device):
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"""
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On specific driver override this method to check if device is supported or not
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return True or False
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"""
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pass
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def get_message(self):
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return ''
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def action(self, data):
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"""
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On specific driver override this method to make a action with device (take picture, printing,...)
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"""
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raise NotImplementedError()
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def disconnect(self):
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del iot_devices[self.device_identifier]
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#----------------------------------------------------------
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# Device manager
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#----------------------------------------------------------
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class EventManager(object):
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def __init__(self):
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self.sessions = {}
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def _delete_expired_sessions(self, max_time=70):
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'''
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Clears sessions that are no longer called.
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:param max_time: time a session can stay unused before being deleted
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'''
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now = time.time()
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expired_sessions = [session for session in self.sessions if now - self.sessions[session]['time_request'] > max_time]
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for session in expired_sessions:
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del self.sessions[session]
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def add_request(self, listener):
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self.session = {
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'session_id': listener['session_id'],
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'devices': listener['devices'],
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'event': Event(),
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'result': {},
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'time_request': time.time(),
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}
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self._delete_expired_sessions()
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self.sessions[listener['session_id']] = self.session
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return self.sessions[listener['session_id']]
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def device_changed(self, device):
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for session in self.sessions:
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if device.device_identifier in self.sessions[session]['devices']:
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self.sessions[session]['result'] = device.data
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self.sessions[session]['result']['device_id'] = device.device_identifier
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self.sessions[session]['event'].set()
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class IoTDevice(object):
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def __init__(self, dev, connection_type):
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self.dev = dev
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self.connection_type = connection_type
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event_manager = EventManager()
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#----------------------------------------------------------
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# Manager
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#----------------------------------------------------------
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class Manager(Thread):
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def __init__(self):
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super(Manager, self).__init__()
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self.load_drivers()
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def load_drivers(self):
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"""
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This method loads local files: 'odoo/addons/hw_drivers/drivers'
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And execute these python drivers
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"""
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path = get_resource_path('hw_drivers', 'drivers')
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driversList = os.listdir(path)
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for driver in driversList:
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path_file = os.path.join(path, driver)
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spec = util.spec_from_file_location(driver, path_file)
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if spec:
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module = util.module_from_spec(spec)
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spec.loader.exec_module(module)
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def send_alldevices(self):
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"""
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This method send IoT Box and devices informations to Odoo database
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"""
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server = get_odoo_server_url()
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if server:
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iot_box = {
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'name': socket.gethostname(),
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'identifier': get_mac_address(),
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'ip': get_ip(),
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'token': get_token(),
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'version': get_version()
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}
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devices_list = {}
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for device in iot_devices:
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identifier = iot_devices[device].device_identifier
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devices_list[identifier] = {
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'name': iot_devices[device].device_name,
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'type': iot_devices[device].device_type,
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'connection': iot_devices[device].device_connection,
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}
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data = {
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'params': {
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'iot_box' : iot_box,
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'devices' : devices_list,
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}
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}
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# disable certifiacte verification
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urllib3.disable_warnings()
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http = urllib3.PoolManager(cert_reqs='CERT_NONE')
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try:
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http.request(
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'POST',
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server + "/iot/setup",
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body = json.dumps(data).encode('utf8'),
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headers = {'Content-type': 'application/json', 'Accept': 'text/plain'}
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)
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except Exception as e:
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_logger.error('Could not reach configured server')
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_logger.error('A error encountered : %s ' % e)
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else:
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_logger.warning('Odoo server not set')
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def serial_loop(self):
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serial_devices = {}
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for identifier in glob('/dev/serial/by-path/*'):
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iot_device = IoTDevice({'identifier': identifier, }, 'serial')
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serial_devices[identifier] = iot_device
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return serial_devices
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def usb_loop(self):
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"""
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Loops over the connected usb devices, assign them an identifier, instantiate
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an `IoTDevice` for them.
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USB devices are identified by a combination of their `idVendor` and
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`idProduct`. We can't be sure this combination in unique per equipment.
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To still allow connecting multiple similar equipments, we complete the
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identifier by a counter. The drawbacks are we can't be sure the equipments
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will get the same identifiers after a reboot or a disconnect/reconnect.
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:return: a dict of the `IoTDevices` instances indexed by their identifier.
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"""
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usb_devices = {}
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devs = core.find(find_all=True)
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cpt = 2
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for dev in devs:
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dev.identifier = "usb_%04x:%04x" % (dev.idVendor, dev.idProduct)
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if dev.identifier in usb_devices:
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dev.identifier += '_%s' % cpt
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cpt += 1
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iot_device = IoTDevice(dev, 'usb')
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usb_devices[dev.identifier] = iot_device
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return usb_devices
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def video_loop(self):
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camera_devices = {}
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videos = glob('/dev/video*')
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for video in videos:
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with open(video, 'w') as path:
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dev = v4l2.v4l2_capability()
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ioctl(path, v4l2.VIDIOC_QUERYCAP, dev)
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dev.interface = video
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dev.identifier = dev.bus_info.decode('utf-8')
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iot_device = IoTDevice(dev, 'video')
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camera_devices[dev.identifier] = iot_device
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return camera_devices
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def printer_loop(self):
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printer_devices = {}
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with cups_lock:
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devices = conn.getDevices()
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for path in [printer_lo for printer_lo in devices if devices[printer_lo]['device-make-and-model'] != 'Unknown']:
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if 'uuid=' in path:
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serial = sub('[^a-zA-Z0-9 ]+', '', path.split('uuid=')[1])
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elif 'serial=' in path:
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serial = sub('[^a-zA-Z0-9 ]+', '', path.split('serial=')[1])
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else:
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serial = sub('[^a-zA-Z0-9 ]+', '', path)
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devices[path]['identifier'] = serial
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devices[path]['url'] = path
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iot_device = IoTDevice(devices[path], 'printer')
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printer_devices[serial] = iot_device
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return printer_devices
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def run(self):
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"""
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Thread that will check connected/disconnected device, load drivers if needed and contact the odoo server with the updates
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"""
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devices = {}
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updated_devices = {}
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self.send_alldevices()
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cpt = 0
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while 1:
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updated_devices = self.usb_loop()
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updated_devices.update(self.video_loop())
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updated_devices.update(mpdm.devices)
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updated_devices.update(bt_devices)
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updated_devices.update(socket_devices)
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updated_devices.update(self.serial_loop())
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if cpt % 40 == 0:
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printer_devices = self.printer_loop()
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cpt = 0
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updated_devices.update(printer_devices)
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cpt += 1
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added = updated_devices.keys() - devices.keys()
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removed = devices.keys() - updated_devices.keys()
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devices = updated_devices
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send_devices = False
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for path in [device_rm for device_rm in removed if device_rm in iot_devices]:
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iot_devices[path].disconnect()
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_logger.info('Device %s is now disconnected', path)
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send_devices = True
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for path in [device_add for device_add in added if device_add not in iot_devices]:
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for driverclass in [d for d in drivers if d.connection_type == devices[path].connection_type]:
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if driverclass.supported(device = updated_devices[path].dev):
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_logger.info('Device %s is now connected', path)
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d = driverclass(device = updated_devices[path].dev)
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d.daemon = True
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d.start()
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iot_devices[path] = d
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send_devices = True
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break
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if send_devices:
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self.send_alldevices()
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time.sleep(3)
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class GattBtManager(Gatt_DeviceManager):
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def device_discovered(self, device):
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path = "bt_%s" % (device.mac_address,)
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if path not in bt_devices:
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device.manager = self
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device.identifier = path
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iot_device = IoTDevice(device, 'bluetooth')
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bt_devices[path] = iot_device
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class BtManager(Thread):
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def run(self):
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dm = GattBtManager(adapter_name='hci0')
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for device in [device_con for device_con in dm.devices() if device_con.is_connected()]:
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device.disconnect()
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dm.start_discovery()
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dm.run()
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class SocketManager(Thread):
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def run(self):
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while True:
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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sock.bind(('', 9000))
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sock.listen(1)
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dev, addr = sock.accept()
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if addr and addr[0] not in socket_devices:
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iot_device = IoTDevice(type('', (), {'dev': dev}), 'socket')
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socket_devices[addr[0]] = iot_device
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class MPDManager(Thread):
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def __init__(self):
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super(MPDManager, self).__init__()
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self.devices = {}
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self.mpd_session = ctypes.c_void_p()
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def run(self):
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eftapi.EFT_CreateSession(ctypes.byref(self.mpd_session))
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eftapi.EFT_PutDeviceId(self.mpd_session, terminal_id.encode())
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while True:
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if self.terminal_connected(terminal_id):
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self.devices[terminal_id] = IoTDevice(terminal_id, 'mpd')
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elif terminal_id in self.devices:
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self.devices = {}
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time.sleep(20)
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def terminal_connected(self, terminal_id):
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eftapi.EFT_QueryStatus(self.mpd_session)
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eftapi.EFT_Complete(self.mpd_session, 1) # Needed to read messages from driver
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device_status = ctypes.c_long()
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eftapi.EFT_GetDeviceStatusCode(self.mpd_session, ctypes.byref(device_status))
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return device_status.value in [0, 1]
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conn = cups_connection()
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PPDs = conn.getPPDs()
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printers = conn.getPrinters()
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cups_lock = Lock() # We can only make one call to Cups at a time
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mpdm = MPDManager()
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terminal_id = read_file_first_line('odoo-six-payment-terminal.conf')
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if terminal_id:
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try:
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subprocess.check_output(["pidof", "eftdvs"]) # Check if MPD server is running
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except subprocess.CalledProcessError:
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subprocess.Popen(["eftdvs", "/ConfigDir", "/usr/share/eftdvs/"]) # Start MPD server
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eftapi = ctypes.CDLL("eftapi.so") # Library given by Six
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mpdm.daemon = True
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mpdm.start()
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m = Manager()
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m.daemon = True
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m.start()
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bm = BtManager()
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bm.daemon = True
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bm.start()
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sm = SocketManager()
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sm.daemon = True
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sm.start()
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