Can create database file if doesn't exist; Refactored

torch_sub/test/hosts_test

@@ -1 +0,0 @@
-127.0.0.1	mqtt.example.com

torch_sub/test/integration_pub_sub.py

@@ -1,4 +1,5 @@
 import json
+import os
 import ssl
 import threading
 import time
@@ -9,8 +10,8 @@ import paho.mqtt.client as mqtt
 
 from torch_sub import torch_sub
 
-host = "mqtt.example.com"
-port = 8883
+broker_hostname = "mqtt.example.com"
+broker_port = 8883
 agent_config_path = "agent-config/"
 mqtt_ca_file = agent_config_path + "ca.crt"
 mqtt_cert_file = agent_config_path + "vagrant.crt"
@@ -29,11 +30,12 @@ def agent_connect():
         certfile=mqtt_cert_file,
         keyfile=mqtt_key_file,
         cert_reqs=ssl.CERT_REQUIRED)
-    client.connect(host, port, 60)
+    client.connect(broker_hostname, broker_port, 60)
     return client
 
 
 def agent_publish(client_id, onion_hostname):
+
     payload = {
         'clientId': client_id,
         'timestamp': datetime.now().strftime("%d-%b-%Y (%H:%M:%S.%f)"),
@@ -41,54 +43,50 @@ def agent_publish(client_id, onion_hostname):
         'sshPort': 22
     }
 
+    time.sleep(0.2)
     client = agent_connect()
-
-    topic = "torch/" + client_id + "/wake"
-
-    client.publish(topic, json.dumps(payload))
-    print("Debug: Connected to MQTT Broker at %s://%s:%s/%s" % ("mqtts", host, port, topic))
-    print("Debug: Published payload: " + json.dumps(payload))
-
+    client.publish("torch/" + client_id + "/wake", json.dumps(payload))
     client.disconnect()
-    print("Debug: Disconnected from MQTT Broker")
-
-    pass
-
-
-def subscriber_thread(host, port, filename, topic, cafile, certfile, keyfile):
-    torch_sub.attach(host,
-                     port,
-                     filename,
-                     topic=topic,
-                     mqtt_ca_file=cafile,
-                     mqtt_cert_file=certfile,
-                     mqtt_key_file=keyfile)
+    time.sleep(0.2)
 
 
 class GivenBrokerAndTorchAgent(unittest.TestCase):
-    def test_when_agent_publishes_should_get_hostname_from_subscriber(self):
-        outfile = "clients.json"
 
-        threading.Thread(target=subscriber_thread,
-                         args=(host,
-                               port,
-                               outfile,
+    def setUp(self) -> None:
+        if os.path.exists(torch_sub.database_file):
+            os.remove(torch_sub.database_file)
+
+    def tearDown(self) -> None:
+        if os.path.exists(torch_sub.database_file):
+            os.remove(torch_sub.database_file)
+
+    def test_when_agent_publishes_should_get_hostname_from_subscriber(self):
+        self.run_subscriber()
+        agent_publish("client1", "crazy_onion.onion")
+        database = self.loadDatabase()
+        self.assertEqual(database['client1']['onionAddress'], "crazy_onion.onion")
+
+    def test_when_agent_publishes_should_get_hostname_from_subscriber2(self):
+        self.run_subscriber()
+        agent_publish("client2", "crazy_onion2.onion")
+        database = self.loadDatabase()
+        self.assertEqual(database['client2']['onionAddress'], "crazy_onion2.onion")
+
+    @staticmethod
+    def run_subscriber():
+        threading.Thread(target=torch_sub.subscribe,
+                         args=(broker_hostname,
+                               broker_port,
                                "torch/+/wake",
                                subscriber_ca_file,
                                subscriber_cert_file,
                                subscriber_key_file),
                          daemon=True).start()
 
-        time.sleep(0.5)
-
-        agent_publish("client1", "crazyonion.onion")
-
-        time.sleep(0.5)
-
-        file = open(outfile, "r")
-        response = json.load(file)
-
-        self.assertEqual(response['client1']['onionAddress'], "crazyonion.onion")
+    @staticmethod
+    def loadDatabase():
+        with open(torch_sub.database_file, "r") as database_file:
+            return json.load(database_file)
 
 
 if __name__ == '__main__':

torch_sub/torch_sub.py

@@ -1,44 +1,37 @@
 import json
+import os
 
-import paho.mqtt.client as cl
 import paho.mqtt.subscribe as mqtt
 
-datafile = "clients.json"
+database_file = "clients.json"
 
-def updateOnion(client, userdata, message):
 
-    with open(datafile, 'r') as infile:
+# noinspection PyUnusedLocal
+def update_client_record(client, userdata, message):
+
+    if not os.path.exists(database_file):
+        with open(database_file, 'w') as database_blank:
+            database_blank.write("{}")
+
+    with open(database_file, 'r') as infile:
         database = json.load(infile)
 
     payload = message.payload.decode('utf-8')
-
-    print("Payload: %s" % (payload))
-
     response = json.loads(payload)
 
-    print(response)
-    print("Response: %s" % (response))
-
-    print("Database: %s" % (database))
     database[response['clientId']] = response
 
-    print("got one! %s %s %s" % (client, userdata, payload))
-
-    with open(datafile, 'w') as outfile:
+    with open(database_file, 'w') as outfile:
         json.dump(database, outfile)
 
 
-
-def attach(host, port, datafileIn, mqtt_ca_file=None, mqtt_cert_file=None, mqtt_key_file=None, topic=None):
-
-    datafile = datafileIn
-
-    mqtt.callback(updateOnion,
+def subscribe(broker_hostname, broker_port, topic="torch", ca_file=None, cert_file=None, key_file=None):
+    mqtt.callback(update_client_record,
                   topic,
-                  hostname=host,
-                  port=port,
+                  hostname=broker_hostname,
+                  port=broker_port,
                   tls={
-                      'ca_certs': mqtt_ca_file,
-                      'certfile': mqtt_cert_file,
-                      'keyfile': mqtt_key_file
-                  })
+                      'ca_certs': ca_file,
+                      'certfile': cert_file,
+                      'keyfile': key_file
+                  })