[FIX] hw_drivers: IoT Box connection

In Chrome 84, mixed content will be completely blocked for security
reasons ([see blog](https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html))
Other browsers will probably follow in the next months.

As IoT Boxes don't have a valid certificate before connecting to a DB,
we used mixed passive content to communicate with the boxes.
This won't be possible anymore, and we have no possible way to
communicate directly from the browser to the box.

- When an IoT Box boots without registered DB, a unique code will be
 created with a validity of 5 minutes.
- This code will be shown on the customer display and printed on the
 status ticket.
- The box will call a route on odoo.com and a record will be created
 in odoo.com with the unique code.
- The user will have to enter the code manually in his DB to connect
 to the IoT Box, the DB will then contact odoo.com to search for a
 record containing the unique code. If it's found, the
 `openerp.enterprise.database` will be added to the record.
- The box will then query odoo.com at regular intervals (10 seconds)
 to check if a DB is linked to the code.

closes odoo/odoo#53623

Taskid: 2246535
X-original-commit: c55f12e32598a713105f3c049ac053e46ba15bb2
Related: odoo/enterprise#11421
Signed-off-by: pimodoo <pimodoo@users.noreply.github.com>

4 files changed, 124 insertions, 30 deletions

diff --git a/addons/hw_drivers/controllers/driver.py b/addons/hw_drivers/controllers/driver.py
index 1b055a315a2..46605790bf2 100755
--- a/addons/hw_drivers/controllers/driver.py
+++ b/addons/hw_drivers/controllers/driver.py
@@ -1,10 +1,12 @@
 #!/usr/bin/python3
 from base64 import b64decode
+from datetime import datetime, timedelta
 from dbus.mainloop.glib import DBusGMainLoop
 from importlib import util
 import json
 import logging
 import os
+import requests
 import socket
 import subprocess
 import sys
@@ -289,6 +291,63 @@ class EventManager(object):
 
 event_manager = EventManager()
 
+#----------------------------------------------------------
+# ConnectionManager
+#----------------------------------------------------------
+
+class ConnectionManager(Thread):
+    def __init__(self):
+        super(ConnectionManager, self).__init__()
+        self.pairing_code = False
+        self.pairing_uuid = False
+
+    def run(self):
+        if not helpers.get_odoo_server_url():
+            end_time = datetime.now() + timedelta(minutes=5)
+            while (datetime.now() < end_time):
+                self._connect_box()
+                time.sleep(10)
+            self.pairing_code = False
+            self.pairing_uuid = False
+            self._refresh_displays()
+
+    def _connect_box(self):
+        data = {
+            'jsonrpc': 2.0,
+            'params': {
+                'pairing_code': self.pairing_code,
+                'pairing_uuid': self.pairing_uuid,
+            }
+        }
+
+        urllib3.disable_warnings()
+        req = requests.post('https://iot-proxy.odoo.com/odoo-enterprise/iot/connect-box', json=data, verify=False)
+        result = req.json().get('result', {})
+
+        if all(key in result for key in ['pairing_code', 'pairing_uuid']):
+            self.pairing_code = result['pairing_code']
+            self.pairing_uuid = result['pairing_uuid']
+        elif all(key in result for key in ['url', 'token', 'db_uuid', 'enterprise_code']):
+            self._connect_to_server(result['url'], result['token'], result['db_uuid'], result['enterprise_code'])
+
+    def _connect_to_server(self, url, token, db_uuid, enterprise_code):
+        if db_uuid and enterprise_code:
+            helpers.add_credential(db_uuid, enterprise_code)
+
+        # Save DB URL and token
+        subprocess.check_call([get_resource_path('point_of_sale', 'tools/posbox/configuration/connect_to_server.sh'), url, '', token, 'noreboot'])
+        # Notify the DB, so that the kanban view already shows the IoT Box
+        m.send_alldevices()
+        # Restart to checkout the git branch, get a certificate, load the IoT handlers...
+        subprocess.check_call(["sudo", "service", "odoo", "restart"])
+
+    def _refresh_displays(self):
+        """Refresh all displays to hide the pairing code"""
+        for d in iot_devices:
+            if iot_devices[d].device_type == 'display':
+                iot_devices[d].action({
+                    'action': 'display_refresh'
+                })
 
 #----------------------------------------------------------
 # Manager
@@ -386,6 +445,10 @@ class Manager(Thread):
 # Must be started from main thread
 DBusGMainLoop(set_as_default=True)
 
+cm = ConnectionManager()
+cm.daemon = True
+cm.start()
+
 m = Manager()
 m.daemon = True
 m.start()
diff --git a/addons/hw_drivers/iot_handlers/drivers/DisplayDriver.py b/addons/hw_drivers/iot_handlers/drivers/DisplayDriver.py
index 52e38c7728a..468a9f40601 100644
--- a/addons/hw_drivers/iot_handlers/drivers/DisplayDriver.py
+++ b/addons/hw_drivers/iot_handlers/drivers/DisplayDriver.py
@@ -13,6 +13,11 @@ from odoo import http
 from odoo.addons.hw_drivers.tools import helpers
 from odoo.addons.hw_drivers.controllers.driver import Driver, event_manager, iot_devices
 
+try:
+    from odoo.addons.hw_drivers.controllers.driver import cm
+except:
+    cm = None
+
 path = os.path.realpath(os.path.join(os.path.dirname(__file__), '../../views'))
 loader = jinja2.FileSystemLoader(path)
 
@@ -215,4 +220,5 @@ class DisplayController(http.Controller):
             'cust_js': cust_js,
             'display_ifaces': display_ifaces,
             'display_identifier': display_identifier,
+            'pairing_code': cm and cm.pairing_code,
         })
diff --git a/addons/hw_drivers/iot_handlers/drivers/PrinterDriver.py b/addons/hw_drivers/iot_handlers/drivers/PrinterDriver.py
index 1685e59e47a..e820ab7fa1d 100644
--- a/addons/hw_drivers/iot_handlers/drivers/PrinterDriver.py
+++ b/addons/hw_drivers/iot_handlers/drivers/PrinterDriver.py
@@ -20,6 +20,11 @@ from odoo.addons.hw_drivers.iot_handlers.interfaces.PrinterInterface import PPDs
 from odoo.addons.hw_drivers.tools import helpers
 from odoo.addons.hw_proxy.controllers.main import drivers as old_drivers
 
+try:
+    from odoo.addons.hw_drivers.controllers.driver import cm
+except:
+    cm = None
+
 _logger = logging.getLogger(__name__)
 
 def print_star_error(deviceId):
@@ -231,6 +236,7 @@ class PrinterDriver(Driver):
         ip = ''
         mac = ''
         homepage = ''
+        pairing_code = ''
 
         ssid = helpers.get_ssid()
         wlan = '\nWireless network:\n%s\n\n' % ssid
@@ -256,11 +262,15 @@ class PrinterDriver(Driver):
             mac = '\nMAC Address:\n%s\n' % helpers.get_mac_address()
             homepage = '\nHomepage:\nhttp://%s:8069\n\n' % main_ips
 
+        code = cm and cm.pairing_code
+        if code:
+            pairing_code = '\nPairing Code:\n%s\n' % code
+
         center = b'\x1b\x61\x01'
         title = b'\n\x1b\x21\x30\x1b\x4d\x01IoTBox Status\x1b\x4d\x00\x1b\x21\x00\n'
         cut = b'\x1d\x56\x41'
 
-        self.print_raw(center + title + wlan.encode() + mac.encode() + ip.encode() + homepage.encode() + cut + b'\n')
+        self.print_raw(center + title + wlan.encode() + mac.encode() + ip.encode() + homepage.encode() + pairing_code.encode() + cut + b'\n')
 
     def open_cashbox(self):
         """Sends a signal to the current printer to open the connected cashbox."""
diff --git a/addons/hw_drivers/views/pos_display.html b/addons/hw_drivers/views/pos_display.html
index cfe848f6645..4cd91f68ab4 100644
--- a/addons/hw_drivers/views/pos_display.html
+++ b/addons/hw_drivers/views/pos_display.html
@@ -22,7 +22,12 @@
                 background: linear-gradient(to right bottom, #77717e, #c9a8a9);
                 height: 100vh;
             }
-            .pos-display-status {
+            .pos-display-boxes {
+                position: absolute;
+                right: 20px;
+                bottom: 20px;
+            }
+            .pos-display-box {
                 padding: 10px 20px;
                 background: rgba(0, 0, 0, 0.17);
                 border: 1px solid rgba(0, 0, 0, 0.06);
@@ -30,9 +35,10 @@
                 color: #fff;
                 border-radius: 8px;
                 width: 500px;
-                position: absolute;
-                right: 20px;
-                bottom: 20px;
+                margin-top: 20px;
+            }
+            .pos-display-box hr {
+                background-color: #fff;
             }
             .info-text {
                 font-size: 15px;
@@ -48,31 +54,40 @@
                 <img style="width: 150px;" src="/web/static/src/img/logo_inverse_white_206px.png">
                 <p class="mt-3" style="color: #fff;font-size: 30px;">IoTBox</p>
             </div>
-            <div class="pos-display-status">
-            <h4 class="text-center mb-3">POS Client display</h4>
-            <table class="table table-hover table-sm table-pos-info">
-                <thead>
-                    <tr>
-                        <th>Interface</th>
-                        <th>IP</th>
-                    </tr>
-                </thead>
-                <tbody>
-                    {% for display_iface in display_ifaces -%}
-                        <tr>
-                            <td><i class="fa fa-{{ display_iface.icon }}"/> {{ display_iface.essid }}</td>
-                            <td>{{ display_iface.addr }}</td>
-                        </tr>
-                    {%- endfor %}
-                </tbody>
-            </table>
-            <p class="mb-2 info-text">
-                <i class="fa fa-info-circle mr-1"></i>The customer cart will be displayed here once a Point of Sale session is started.
-            </p>
-            <p class="mb-2 info-text">
-                <i class="fa fa-info-circle mr-1"></i>Odoo version 11 or above is required.
-            </p>
-            <div class="error-message alert alert-danger mb-2 d-none" role="alert" />
+            <div class="pos-display-boxes">
+                {% if pairing_code %}
+                    <div class="pos-display-box">
+                        <h4 class="text-center mb-3">Pairing Code</h4>
+                        <hr/>
+                        <h4 class="text-center mb-3">{{ pairing_code }}</h4>
+                    </div>
+                {% endif %}
+                <div class="pos-display-box">
+                    <h4 class="text-center mb-3">POS Client display</h4>
+                    <table class="table table-hover table-sm table-pos-info">
+                        <thead>
+                            <tr>
+                                <th>Interface</th>
+                                <th>IP</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            {% for display_iface in display_ifaces -%}
+                                <tr>
+                                    <td><i class="fa fa-{{ display_iface.icon }}"/> {{ display_iface.essid }}</td>
+                                    <td>{{ display_iface.addr }}</td>
+                                </tr>
+                            {%- endfor %}
+                        </tbody>
+                    </table>
+                    <p class="mb-2 info-text">
+                        <i class="fa fa-info-circle mr-1"></i>The customer cart will be displayed here once a Point of Sale session is started.
+                    </p>
+                    <p class="mb-2 info-text">
+                        <i class="fa fa-info-circle mr-1"></i>Odoo version 11 or above is required.
+                    </p>
+                    <div class="error-message alert alert-danger mb-2 d-none" role="alert" />
+                </div>
             </div>
         </div>
     </body>