[IMP] hw_drivers: Add possibility to choose a wifi network on IoT Box

Previously if you are wired connected we don't scan wifi network.

Now we scan the wifi network and add possibiliyt to select a network and use them.

addons/hw_drivers/tools/helpers.py

@@ -74,7 +74,17 @@ def get_token():
     return read_file_first_line('token')
 
 def get_version():
-    return '19_07'
+    return '19.07'
+
+def get_wifi_essid(self):
+    wifi_options = []
+    process_iwlist = subprocess.Popen(['sudo', 'iwlist', 'wlan0', 'scan'], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+    process_grep = subprocess.Popen(['grep', 'ESSID:"'], stdin=process_iwlist.stdout, stdout=subprocess.PIPE).stdout.readlines()
+    for ssid in process_grep:
+        essid = ssid.decode('utf-8').split('"')[1]
+        if essid not in wifi_options:
+            wifi_options.append(essid)
+    return wifi_options
 
 def load_certificate():
     """

addons/hw_posbox_homepage/controllers/main.py

@@ -97,7 +97,7 @@ class IoTboxHomepage(web.Home):
                 'title': 'Configure IoT Box',
                 'breadcrumb': 'Configure IoT Box',
                 'loading_message': 'Configuring your IoT Box',
-                'ssid': self.get_wifi_essid(),
+                'ssid': helpers.get_wifi_essid(),
                 'server': helpers.get_odoo_server_url(),
                 'hostname': subprocess.check_output('hostname').decode('utf-8'),
                 })
@@ -145,27 +145,13 @@ class IoTboxHomepage(web.Home):
         subprocess.check_call(["sudo", "service", "odoo", "restart"])
         return "<meta http-equiv='refresh' content='20; url=http://" + helpers.get_ip() + ":8069'>"
 
-    def get_wifi_essid(self):
-        wifi_options = []
-        try:
-            f = open('/tmp/scanned_networks.txt', 'r')
-            for line in f:
-                line = line.rstrip()
-                line = misc.html_escape(line)
-                if line not in wifi_options:
-                    wifi_options.append(line)
-            f.close()
-        except IOError:
-            _logger.warning("No /tmp/scanned_networks.txt")
-        return wifi_options
-
     @http.route('/wifi', type='http', auth='none', website=True)
     def wifi(self):
         return wifi_config_template.render({
             'title': 'Wifi configuration',
             'breadcrumb': 'Configure Wifi',
             'loading_message': 'Connecting to Wifi',
-            'ssid': self.get_wifi_essid(),
+            'ssid': helpers.get_wifi_essid(),
         })
 
     @http.route('/wifi_connect', type='http', auth='none', cors='*', csrf=False)
@@ -185,6 +171,11 @@ class IoTboxHomepage(web.Home):
                 'url': server,
                 'message': 'Redirect to Odoo Server'
             }
+        else:
+            res_payload['server'] = {
+                'url': 'http://' + helpers.get_ip() + ':8069',
+                'message': 'Redirect to IoT Box'
+            }
 
         return json.dumps(res_payload)
 
@@ -229,7 +220,7 @@ class IoTboxHomepage(web.Home):
             'title': 'Configure IoT Box',
             'breadcrumb': 'Configure IoT Box',
             'loading_message': 'Configuring your IoT Box',
-            'ssid': self.get_wifi_essid(),
+            'ssid': helpers.get_wifi_essid(),
             'server': helpers.get_odoo_server_url(),
             'hostname': subprocess.check_output('hostname').decode('utf-8').strip('\n'),
         })

addons/point_of_sale/tools/posbox/configuration/wireless_ap.sh

@@ -4,43 +4,34 @@ FORCE_HOST_AP="${1}"
 WIRED_IP=$(python3 -c "import netifaces as ni; print(ni.ifaddresses('eth0').get(ni.AF_INET) and ni.ifaddresses('eth0')[ni.AF_INET][0]['addr'] or '')")
 WIFI_NETWORK_FILE="/home/pi/wifi_network.txt"
 
+
+ifconfig wlan0 down
+ifconfig wlan0 up
+
+# wait for wlan0 to come up
+sleep 5
+
 # if there is no wired ip, attempt to start an AP through wireless interface
 if [ -z "${WIRED_IP}" ] ; then
 	logger -t posbox_wireless_ap "No wired IP"
 
-	ifconfig wlan0 down
-	ifconfig wlan0 up
-
-	# wait for wlan0 to come up
-	sleep 5
-
-	# we cannot scan for networks while in Master mode
-	# so first scan and save the networks to a list
-	iwlist wlan0 scan | grep 'ESSID:' | sed 's/.*ESSID:"\(.*\)"/\1/' > /tmp/scanned_networks.txt
-
-	# only do it when there is a wireless interface
-	if [ -n "$(iw list)" ] ; then
-		if [ -f "${WIFI_NETWORK_FILE}" ] && [ -z "${FORCE_HOST_AP}" ] ; then
-			logger -t posbox_wireless_ap "Loading persistently saved setting"
-			/home/pi/odoo/addons/point_of_sale/tools/posbox/configuration/connect_to_wifi.sh &
-		else
-			logger -t posbox_wireless_ap "Starting AP"
-
-			service hostapd restart
-
-			ip addr add 10.11.12.1/24 dev wlan0
-
-			service dnsmasq restart
-
-			service nginx stop
-			# We start nginx in another configuration than the default one with https
-			# as it needs to do redirect instead in case the IoT Box acts as an ap
-			nginx -c /home/pi/odoo/addons/point_of_sale/tools/posbox/configuration/nginx_ap.conf
-
-			service odoo restart
-		fi
-	# no wired, no wireless
+	if [ -f "${WIFI_NETWORK_FILE}" ] && [ -z "${FORCE_HOST_AP}" ] ; then
+		logger -t posbox_wireless_ap "Loading persistently saved setting"
+		/home/pi/odoo/addons/point_of_sale/tools/posbox/configuration/connect_to_wifi.sh &
 	else
+		logger -t posbox_wireless_ap "Starting AP"
+
+		service hostapd restart
+
+		ip addr add 10.11.12.1/24 dev wlan0
+
+		service dnsmasq restart
+
+		service nginx stop
+		# We start nginx in another configuration than the default one with https
+		# as it needs to do redirect instead in case the IoT Box acts as an ap
+		nginx -c /home/pi/odoo/addons/point_of_sale/tools/posbox/configuration/nginx_ap.conf
+
 		service odoo restart
 	fi
 # wired