MQTT prep-work

back/pialert.py

@@ -33,6 +33,7 @@ import json
 import requests
 from base64 import b64encode
 from paho.mqtt import client as mqtt_client
+import threading
 
 
 # sys.stdout = open('pialert_new.log', 'w')
@@ -147,15 +148,16 @@ except NameError:
 send_report_on_cycles = [1, "internet_IP", "update_vendors_silent"]
 cycle = ""
 network_scan_minutes = 5
+mqtt_thread_up = False
 
 # timestamps of last execution times
 time_now = datetime.datetime.now()
-now_minus_one_day = time_now - timedelta(hours = 24)
+now_minus_24h = time_now - timedelta(hours = 24)
 
-last_network_scan = now_minus_one_day
+last_network_scan = now_minus_24h
-last_internet_IP_scan = now_minus_one_day
+last_internet_IP_scan = now_minus_24h
-last_run = now_minus_one_day
+last_run = now_minus_24h
-last_cleanup = now_minus_one_day
+last_cleanup = now_minus_24h
 last_update_vendors = time_now - timedelta(days = 7)
 
 def main ():
@@ -189,9 +191,16 @@ def main ():
             startTime = time_now
             startTime = startTime.replace (second=0, microsecond=0)
 
-            ## Upgrade DB if needed
+            # Upgrade DB if needed
             upgradeDB()
 
+            # Start MQTT thread if configured
+            # if reportMQTT and not mqtt_thread_up:
+            #     print ('Establishing MQTT thread...')
+            #     # start_mqtt_thread (connect_mqtt())
+            #     # connect_mqtt()
+            #     mqtt_start()
+
             # determine run/scan type based on passed time
             if last_internet_IP_scan + timedelta(minutes=3) < time_now:
                 cycle = 'internet_IP'                
@@ -1567,11 +1576,6 @@ def email_reporting ():
             send_pushsafer (mail_text)
         else :
             print ('    Skip PUSHSAFER...')
-        if reportMQTT :
-            print ('    Establishing MQTT runtime...')
-            start_sending_mqtt (connect_mqtt(), json_final)
-        else :
-            print ('    Skip MQTT...')
     else :
         print ('    No changes to report...')
 
@@ -1780,78 +1784,58 @@ def send_apprise (html):
     logResult (stdout, stderr)  
 
 #-------------------------------------------------------------------------------
-ConnectedMQTT = False                       #global variable for the state of the connection
-client = mqtt_client.Client(mqttClientId)   # Set Connecting Client ID
-
-def connect_mqtt():
-    if ConnectedMQTT == False:
-        def on_connect(client, userdata, flags, rc):
-            if rc == 0:
-                ConnectedMQTT = True
-                print("        Connected to MQTT Broker!")
-            else:
-                ConnectedMQTT = False
-                print("        Failed to connect, return code %d\n", rc)        
-        
-        client.username_pw_set(mqttUser, mqttPassword)
-        client.on_connect = on_connect
-        client.connect(mqttBroker, mqttPort)
-    return client
-
-#-------------------------------------------------------------------------------
-def start_sending_mqtt(client, json_final):
-    client.loop_start()        #start the loop
-
-    index = 0
-    for event in json_final['events']:
-        index = index + 1
-        
-        deviceMAC = event[index][0]
-        deviceIP = event[index][1]
-        eventType = event[index][3]
-        deviceName = event[index][8]      
-        deviceVendor = event[index][11] 
-        # deviceNetworkNode = event[index][23]        
 
 
-        payload_str = (
+def mqtt_start():
-            '{'
+    global mqtt_thread_up 
-            + f'"device_mac": {deviceMAC},'
-            + f'"device_ip": {deviceIP},'
-            + f'"event_type": {eventType},'
-            + f'"device_name": {deviceName},'
-            + f'"device_vendor": {deviceVendor},'
-            # + f'"device_network_node": "{deviceNetworkNode}"'
-            + "}"
-            )        
 
-        client.publish(
+    mqtt_thread_up = True
-            # topic=f"system-sensors/sensor/{deviceName}/state",
+
-            topic=f"system-sensors/sensor/PiAlert/state",
+    client = mqtt_client.Client(mqttClientId)   # Set Connecting Client ID    
-            payload=payload_str,
+    client.username_pw_set(mqttUser, mqttPassword)    
+    client.connect(mqttBroker, mqttPort)
+
+    while True:         
+    
+        time.sleep(15) 
+
+        # Online_Devices, Down_Devices, All_Devices, Archived_Devices 
+        row = get_device_stats()
+
+        client.publish("pialert/devices/online/number", 
+            payload=row[0], 
             qos=1,
-            retain=True
+            retain=True)
-        )
 
-        client.publish(
+        client.publish("pialert/devices/number", 
-            # topic=f"system-sensors/sensor/{deviceName}/state",
+            payload=row[2], 
-            topic=f"system-sensors/sensor/PiAlert2/state",
+            qos=1,
-            payload=payload_str,            
+            retain=True)
-            retain=True
-        )
 
-        client.publish(
+        print ('MQTT published messages')
-            # topic=f"system-sensors/sensor/{deviceName}/state",
-            topic=f"system-sensors/sensor/PiAlert3/state",         
-            payload='test message'
-        )
 
-        # if ConnectedMQTT:        
-        #     msg = f"PiAlert: {msg_count}"            
-        #     client.publish(mqttTopic, msg)
 
-    # client.disconnect()
+    client.loop()
-    # client.loop_stop()
+
+
+
+# #-------------------------------------------------------------------------------
+# def start_mqtt_thread (client):
+#     # start a MQTT thread loop which will continuously report on devices to the broker
+#         # daemon=True - makes sure the thread dies with the process if interrupted
+#     global mqtt_thread_up
+
+#     # flag to check if thread is running
+#     mqtt_thread_up = True
+
+#     print("    Starting MQTT sending")
+#     # x = threading.Thread(target=start_sending_mqtt, args=(client,), daemon=True) 
+#     start_sending_mqtt(client)
+
+#     print("    Threading: Starting MQTT thread")
+
+#     # x.start()
+
 
 #===============================================================================
 # DB
@@ -2033,6 +2017,19 @@ def to_text(_json):
 
     return payloadData
 
+def get_device_stats():
+
+    openDB()
+
+    sql.execute("""      
+      SELECT Online_Devices, Down_Devices, All_Devices, Archived_Devices from Online_History 
+      """)
+
+    row = sql.fetchone()
+
+    closeDB()
+    return row
+
 #===============================================================================
 # BEGIN
 #===============================================================================