- Test for internet

- Improve handling of no internet
- Allow null values
- Add netutils

dbo.py

@@ -43,8 +43,8 @@ class BroModel(Model):
         self.save()
 
 class Entry(BroModel):
-    upload = FloatField()
-    download = FloatField()
+    upload = FloatField(null=True)
+    download = FloatField(null=True)
 
 
     class Meta:

netutils.py

@@ -0,0 +1,47 @@
+from platform import system as system_name  # Returns the system/OS name
+from os import system as system_call  # Execute a shell command
+import time
+
+test_ips = ['duckduckgo.com',
+            'cloudflare.com',
+            'google.com',
+            'ya.ru']
+
+
+try_delay = 0.5
+
+def ping(host):
+    """
+    Returns True if host (str) responds to a ping request.
+    Remember that some hosts may not respond to a ping request even if the host name is valid.
+    """
+
+    # Ping parameters as function of OS
+    parameters = "-n 1 -w 1000" if system_name().lower().strip() == "windows" else "-c 1 -W 1000"
+
+    # Pinging
+    return system_call("ping " + parameters + " " + host) == 0
+
+
+def wait_for_internet_connection():
+    while True:
+        for ip in test_ips:
+            if ping(ip):
+                return
+            else:
+                print("Could not reach internet. Trying again...")
+                time.sleep(try_delay)
+
+
+def test_intertnet_connection():
+    for ip in test_ips:
+        if ping(ip):
+            return True
+        else:
+            print("Could not reach internet. Trying another IP...")
+            time.sleep(try_delay)
+    return False
+
+#########################################################
+#########################################################
+#########################################################

speedtester.py

@@ -121,6 +121,7 @@ wan_upload = None
 wan_download = None
 results_dict = None
 test_started = False
+speedtest_failed = False
 downloading = True  # True for download, False for upload
 threads = None
 servers = []
@@ -129,21 +130,26 @@ servers = []
 def threaded_speedtest():
     global test_started
     global downloading
-
-    s = speedtest.Speedtest()
-    s.get_servers(servers)
-    s.get_best_server()
-    print(f"Running test...")
-    test_started = True
-    downloading = True
-    s.download(threads=threads)
-    downloading = False
-    s.upload(threads=threads, pre_allocate=False)
-
     global results_dict
-    results_dict = s.results.dict()
-    log.info(
-        f"Speedtest.net result: DOWN {mbits(results_dict['download'])} mbps; UP {mbits(results_dict['upload'])} mbps;")
+    global speedtest_failed
+    try:
+        s = speedtest.Speedtest()
+        s.get_servers(servers)
+        s.get_best_server()
+        print(f"Running test...")
+        test_started = True
+        downloading = True
+        s.download(threads=threads)
+        downloading = False
+        s.upload(threads=threads, pre_allocate=False)
+
+
+        results_dict = s.results.dict()
+        log.info(
+            f"Speedtest.net result: DOWN {mbits(results_dict['download'])} mbps; UP {mbits(results_dict['upload'])} mbps;")
+    except Exception as e:
+        speedtest_failed = True
+        log.error(f"Speedtest.net failed: {e}", exc_info=True)
     return results_dict
 
 
@@ -153,13 +159,15 @@ def threaded_wan_speed():
     global downloading
     print("Waiting for test to start...")
     while not test_started:
+        if speedtest_failed:
+            return
         time.sleep(1)
     print("Allow warm-up...")
     time.sleep(2)
     uploads = []
     downloads = []
     print("Monitoring...")
-    while not results_dict:
+    while results_dict == None:
         connection = routeros_api.RouterOsApiPool(config['ros_ip'], username=secrets["ros_login"],
                                                   password=secrets["ros_password"], plaintext_login=True)
         api = connection.get_api()
@@ -194,6 +202,31 @@ def test_speed():
     sws.join()
 
 
+def generate_database_reports():
+    dates, downloads, uploads = gather_data()
+
+    generate_txt_output(dates, downloads, uploads)
+
+    generate_plot_image(dates, downloads, uploads)
+
+import sys
+from netutils import test_intertnet_connection
+
+
+def on_fail_or_no_connection():
+
+    ros_fastrack_enable(False)
+
+    entry = Entry()
+    entry.upload = None
+    entry.download = None
+    entry.save()
+
+    generate_database_reports()
+
+    log.warning("No internet connection! Exiting.")
+    sys.exit()
+
 if __name__ == "__main__":
     '''
     This script will run a few speed tests, calculate average upload and download speeds and record them into database.
@@ -206,12 +239,21 @@ if __name__ == "__main__":
     from random import uniform
 
     try:
+        log.debug("Test internet connection...")
+        # if not test_intertnet_connection():
+        #     no_internet()
+
+
+
         if config["ros_dynamic_speed"]:
             ros_fastrack_enable(True)
             time.sleep(5)
 
         test_speed()
 
+        if speedtest_failed:
+            on_fail_or_no_connection()
+
         entry = Entry()
         entry.upload = mbits(wan_upload)
         entry.download = mbits(wan_download)
@@ -224,11 +266,7 @@ if __name__ == "__main__":
             ros_dynamic_speed(wan_upload, wan_download)
             ros_fastrack_enable(False)
 
-        dates, downloads, uploads = gather_data()
-
-        generate_txt_output(dates, downloads, uploads)
-
-        generate_plot_image(dates, downloads, uploads)
+        generate_database_reports()
 
 
     except: