feat: Add fixes for time and alerts

server.py

@@ -147,20 +147,21 @@ def build_dns_query(domain: str, qtype: str = "A"):
 
 def check_doh(ip: str) -> bool:
     status = False
-    dns_query = build_dns_query("2.wdbrn", "TXT")
-    request = (
-        f"POST /dns-query HTTP/1.1\r\n"
-        f"Host: hnsdoh.com\r\n"
-        "Content-Type: application/dns-message\r\n"
-        f"Content-Length: {len(dns_query)}\r\n"
-        "Connection: close\r\n"
-        "\r\n"
-    )
-    wireframe_request = request.encode() + dns_query
-    sock = socket.create_connection((ip, 443))
-    context = ssl.create_default_context()
-    ssock = context.wrap_socket(sock, server_hostname="hnsdoh.com")
-    try:
+    try:        
+        dns_query = build_dns_query("2.wdbrn", "TXT")
+        request = (
+            f"POST /dns-query HTTP/1.1\r\n"
+            f"Host: hnsdoh.com\r\n"
+            "Content-Type: application/dns-message\r\n"
+            f"Content-Length: {len(dns_query)}\r\n"
+            "Connection: close\r\n"
+            "\r\n"
+        )
+        wireframe_request = request.encode() + dns_query
+        sock = socket.create_connection((ip, 443))
+        context = ssl.create_default_context()
+        ssock = context.wrap_socket(sock, server_hostname="hnsdoh.com")
+    
         ssock.sendall(wireframe_request)
         response_data = b""
         while True:
@@ -182,7 +183,8 @@ def check_doh(ip: str) -> bool:
 
     finally:
         # Close the socket connection
-        ssock.close()
+        if ssock:
+            ssock.close()
     return status
 
 
@@ -246,6 +248,22 @@ def format_relative_time(expiry_date: datetime) -> str:
     else:
         return f"in {delta.seconds} seconds" if delta.seconds > 1 else "in 1 second"
 
+def format_last_check(last_log: datetime) -> str:
+    now = datetime.now()
+    delta = now - last_log
+
+    if delta.days > 0:
+        return f"{delta.days} days ago" if delta.days > 1 else "1 day ago"
+    elif delta.days < 0:
+        return f"in {-delta.days} days" if -delta.days > 1 else "in 1 day"
+    elif delta.seconds >= 3600:
+        hours = delta.seconds // 3600
+        return f"{hours} hours ago" if hours > 1 else "1 hour ago"
+    elif delta.seconds >= 60:
+        minutes = delta.seconds // 60
+        return f"{minutes} minutes ago" if minutes > 1 else "1 minute ago"
+    else:
+        return f"{delta.seconds} seconds ago" if delta.seconds > 1 else "1 second ago"
 
 def check_nodes() -> list:
     global nodes
@@ -306,7 +324,7 @@ def check_nodes() -> list:
     for node in node_status:
         if not node["plain_dns"] or not node["doh"] or not node["dot"] or not node["cert"]["valid"] or not node["cert_853"]["valid"]:
             send_down_notification(node)
-            break
+            continue
         # Check if cert is expiring in 7 days
         cert_expiry = datetime.strptime(
             node["cert"]["expiry_date"], "%b %d %H:%M:%S %Y GMT"
@@ -315,10 +333,10 @@ def check_nodes() -> list:
             if node["ip"] not in sent_notifications:
                 sent_notifications[node["ip"]] = datetime.now()
                 send_down_notification(node)
-                break
+                continue
             if sent_notifications[node["ip"]] < datetime.now() - relativedelta.relativedelta(days=1):   
                 send_down_notification(node)
-                break
+                continue
         cert_853_expiry = datetime.strptime(
             node["cert_853"]["expiry_date"], "%b %d %H:%M:%S %Y GMT"
         )
@@ -326,50 +344,34 @@ def check_nodes() -> list:
             if node["ip"] not in sent_notifications:
                 sent_notifications[node["ip"]] = datetime.now()
                 send_down_notification(node)
-                break
+                continue
             if sent_notifications[node["ip"]] < datetime.now() - relativedelta.relativedelta(days=1):   
                 send_down_notification(node)
-                break
+                continue
     return node_status
 
 def check_nodes_from_log() -> list:
     global last_log
-    if last_log > datetime.now() - relativedelta.relativedelta(minutes=10):
-        # Load the last log
-        with open(f"{log_dir}/node_status.json", "r") as file:
-            data = json.load(file)
-        newest = {
-            "date": datetime.now() - relativedelta.relativedelta(years=1),
-            "nodes": [],
-        }
-        for entry in data:
-            if datetime.strptime(entry["date"], "%Y-%m-%d %H:%M:%S") > newest["date"]:
-                newest = entry
-                newest["date"] = datetime.strptime(newest["date"], "%Y-%m-%d %H:%M:%S")
-        node_status = newest["nodes"]
-    elif last_log < datetime.now() - relativedelta.relativedelta(days=7):
-        # Load the log file
-        with open(f"{log_dir}/node_status.json", "r") as file:
-            data = json.load(file)
-        newest = {
-            "date": datetime.now() - relativedelta.relativedelta(years=1),
-            "nodes": [],
-        }
-        for entry in data:
-            if datetime.strptime(entry["date"], "%Y-%m-%d %H:%M:%S") > newest["date"]:
-                newest = entry
-                newest["date"] = datetime.strptime(newest["date"], "%Y-%m-%d %H:%M:%S")
-        node_status = newest["nodes"]
-        if newest["date"] > datetime.now() - relativedelta.relativedelta(minutes=10):
-            last_log = newest["date"]
-            print(f"Loaded log from {last_log}", flush=True)
-            return node_status
-    else:
+    # Load the last log
+    with open(f"{log_dir}/node_status.json", "r") as file:
+        data = json.load(file)
+    newest = {
+        "date": datetime.now() - relativedelta.relativedelta(years=1),
+        "nodes": [],
+    }
+    for entry in data:
+        if datetime.strptime(entry["date"], "%Y-%m-%d %H:%M:%S") > newest["date"]:
+            newest = entry
+            newest["date"] = datetime.strptime(newest["date"], "%Y-%m-%d %H:%M:%S")
+    node_status = newest["nodes"]
+    if datetime.now() > newest["date"] + relativedelta.relativedelta(minutes=10):
+        print("Failed to get a new enough log, checking nodes", flush=True)
+        print(newest["date"])
         node_status = check_nodes()
+    else:
+        last_log = newest["date"]
     return node_status
 
-
-
 def send_notification(title, description,author):
     discord_hook = os.getenv("DISCORD_HOOK")
     if discord_hook:
@@ -682,8 +684,8 @@ def index():
     history = get_history(history_days)
     history_summary = summarize_history(history)
     history_summary["nodes"] = convert_nodes_to_dict(history_summary["nodes"])
-    last_check = last_log.strftime("%Y-%m-%d %H:%M:%S")
-    print(f"Last check: {last_check}", flush=True)
+    last_check = format_last_check(last_log)
+    
     return render_template(
         "index.html",
         nodes=node_status,