186 lines
7.8 KiB
Python
186 lines
7.8 KiB
Python
# -*- coding: utf-8 -*-
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##############################################################################
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#
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# OpenERP, Open Source Management Solution
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# Copyright (C) 2004-2015 Tiny SPRL (<http://tiny.be>).
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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##############################################################################
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from openerp import http
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from openerp.tools import config
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from openerp.addons.web.controllers import main as web
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import logging
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import netifaces as ni
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import os
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from subprocess import call
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import time
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import threading
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self_port = str(config['xmlrpc_port'] or 8069)
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_logger = logging.getLogger(__name__)
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class HardwareScreen(web.Home):
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event_data = threading.Event()
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pos_client_data = {'rendered_html': False,
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'ip_from': False}
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display_in_use = ''
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failure_count = {}
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def _call_xdotools(self, keystroke):
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os.environ['DISPLAY'] = ":0.0"
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os.environ['XAUTHORITY'] = "/run/lightdm/pi/xauthority"
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try:
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call(['xdotool', 'key', keystroke])
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return "xdotool succeeded in stroking " + keystroke
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except:
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return "xdotool threw an error, maybe it is not installed on the posbox"
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@http.route('/hw_proxy/display_refresh', type='json', auth='none', cors='*')
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def display_refresh(self):
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return self._call_xdotools('F5')
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# POS CASHIER'S ROUTES
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@http.route('/hw_proxy/customer_facing_display', type='json', auth='none', cors='*')
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def update_user_facing_display(self, html=None):
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request_ip = http.request.httprequest.remote_addr
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if request_ip == HardwareScreen.pos_client_data.get('ip_from', ''):
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HardwareScreen.pos_client_data['rendered_html'] = html
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HardwareScreen.event_data.set()
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return {'status': 'updated'}
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else:
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return {'status': 'failed'}
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@http.route('/hw_proxy/take_control', type='json', auth='none', cors='*')
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def take_control(self, html=None):
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# ALLOW A CASHIER TO TAKE CONTROL OVER THE POSBOX, IN CASE OF MULTIPLE CASHIER PER POSBOX
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HardwareScreen.pos_client_data['rendered_html'] = html
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HardwareScreen.pos_client_data['ip_from'] = http.request.httprequest.remote_addr
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HardwareScreen.event_data.set()
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return {'status': 'success',
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'message': 'You now have access to the display'}
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@http.route('/hw_proxy/test_ownership', type='json', auth='none', cors='*')
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def test_ownership(self):
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if HardwareScreen.pos_client_data.get('ip_from') == http.request.httprequest.remote_addr:
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return {'status': 'OWNER'}
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else:
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return {'status': 'NOWNER'}
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# POSBOX ROUTES (SELF)
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@http.route('/point_of_sale/display', type='http', auth='none')
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def render_main_display(self):
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return self._get_html()
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@http.route('/point_of_sale/get_serialized_order', type='json', auth='none')
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def get_serialized_order(self):
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request_addr = http.request.httprequest.remote_addr
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result = HardwareScreen.pos_client_data
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if HardwareScreen.display_in_use and request_addr != HardwareScreen.display_in_use:
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if not HardwareScreen.failure_count.get(request_addr):
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HardwareScreen.failure_count[request_addr] = 0
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if HardwareScreen.failure_count[request_addr] > 0:
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time.sleep(10)
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HardwareScreen.failure_count[request_addr] += 1
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return {'rendered_html': """<div class="pos-customer_facing_display"><p>Not Authorized. Another browser is in use to display for the client. Please refresh.</p></div> """,
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'stop_longpolling': True,
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'ip_from': request_addr}
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# IMPLEMENTATION OF LONGPOLLING
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# Times out 2 seconds before the JS request does
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if HardwareScreen.event_data.wait(28):
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HardwareScreen.event_data.clear()
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HardwareScreen.failure_count[request_addr] = 0
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return result
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return {'rendered_html': False,
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'ip_from': HardwareScreen.pos_client_data['ip_from']}
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def _get_html(self):
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cust_js = None
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interfaces = ni.interfaces()
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my_ip = '127.0.0.1'
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HardwareScreen.display_in_use = http.request.httprequest.remote_addr
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with open(os.path.join(os.path.dirname(__file__), "../static/src/js/worker.js")) as js:
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cust_js = js.read()
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with open(os.path.join(os.path.dirname(__file__), "../static/src/css/cust_css.css")) as css:
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cust_css = css.read()
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display_ifaces = ""
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for iface_id in interfaces:
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iface_obj = ni.ifaddresses(iface_id)
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ifconfigs = iface_obj.get(ni.AF_INET, [])
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for conf in ifconfigs:
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if conf.get('addr'):
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display_ifaces += "<tr><td>" + iface_id + "</td>"
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display_ifaces += "<td>" + conf.get('addr') + "</td>"
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display_ifaces += "<td>" + conf.get('netmask') + "</td></tr>"
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# What is my external IP ?
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if iface_id != 'lo':
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my_ip = conf.get('addr')
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my_ip_port = my_ip + ":" + self_port
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html = """
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<!DOCTYPE html>
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<html>
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<head>
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<title class="origin">Odoo -- Point of Sale</title>
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<script type="text/javascript" class="origin" src="http://""" + my_ip_port + """/web/static/lib/jquery/jquery.js" >
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</script>
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<script type="text/javascript" class="origin">
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""" + cust_js + """
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</script>
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<link rel="stylesheet" class="origin" href="http://""" + my_ip_port + """/web/static/lib/bootstrap/css/bootstrap.css" >
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</link>
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<script class="origin" src="http://""" + my_ip_port + """/web/static/lib/bootstrap/js/bootstrap.min.js"></script>
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<style class="origin">
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""" + cust_css + """
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</style>
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</head>
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<body class="original_body">
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<div hidden class="shadow"></div>
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<div class="container">
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<div class="row">
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<div class="col-md-4 col-md-offset-4">
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<h1>Odoo Point of Sale</h1>
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<h2>POSBox Client display</h2>
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<h3>My IPs</h3>
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<table id="table_ip" class="table table-condensed">
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<tr>
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<th>Interface</th>
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<th>IP</th>
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<th>Netmask</th>
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</tr>
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""" + display_ifaces + """
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</table>
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<p>The customer cart will be displayed here once a Point of Sale session is started.</p>
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<p>Odoo version 11 or above is required.</p>
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</div>
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</div>
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</div>
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</body>
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</html>
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"""
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return html
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