Add RabbitMQ for guaranted delivery and rate_limit for message to avoid bans from Telegram Api

telezab.py

@@ -8,6 +8,11 @@ from logging.config import dictConfig
 from threading import Thread, Lock, Timer
 import sqlite3
 import time
+import asyncio
+import aiohttp
+import pika
+import json
+from concurrent.futures import ThreadPoolExecutor
 
 # Load environment variables
 load_dotenv()
@@ -50,6 +55,9 @@ bot = telebot.TeleBot(TOKEN)
 # Lock for database operations
 db_lock = Lock()
 
+# Semaphore for rate limiting
+rate_limit_semaphore = asyncio.Semaphore(25)  # 25 messages per second
+
 # Define states
 NOTIFICATION_MODE = 1
 SETTINGS_MODE = 2
@@ -512,8 +520,6 @@ def process_add_region(message):
             conn.close()
     except (IndexError, ValueError):
         bot.send_message(chat_id, "Неверный формат. Используйте: <region_id> <region_name>")
-    # Remove this line to avoid repetitive settings menu message
-    # show_settings_menu(chat_id)
 
 @bot.callback_query_handler(func=lambda call: call.data.startswith("replace_") or call.data.startswith("reactivate_"))
 def handle_region_action(call):
@@ -636,6 +642,83 @@ def handle_active_regions(message):
         bot.send_message(chat_id, f"Активные регионы:\n{regions_list}")
     show_settings_menu(chat_id)
 
+# RabbitMQ configuration
+RABBITMQ_HOST = os.getenv('RABBITMQ_HOST', 'localhost')
+RABBITMQ_QUEUE = 'telegram_notifications'
+
+def rabbitmq_connection():
+    connection = pika.BlockingConnection(pika.ConnectionParameters(RABBITMQ_HOST))
+    channel = connection.channel()
+    channel.queue_declare(queue=RABBITMQ_QUEUE, durable=True)
+    return connection, channel
+
+def send_to_queue(message):
+    connection, channel = rabbitmq_connection()
+    channel.basic_publish(
+        exchange='',
+        routing_key=RABBITMQ_QUEUE,
+        body=json.dumps(message),
+        properties=pika.BasicProperties(
+            delivery_mode=2,  # make message persistent
+        ))
+    connection.close()
+
+async def consume_from_queue():
+    connection, channel = rabbitmq_connection()
+
+    for method_frame, properties, body in channel.consume(RABBITMQ_QUEUE):
+        message = json.loads(body)
+        chat_id = message['chat_id']
+        message_text = message['message']
+
+        try:
+            await send_notification_message(chat_id, message_text)
+            channel.basic_ack(method_frame.delivery_tag)
+        except Exception as e:
+            app.logger.error(f"Error sending message from queue: {e}")
+            # Optionally, you can nack the message to requeue it
+            # channel.basic_nack(method_frame.delivery_tag)
+
+    connection.close()
+
+async def send_message(chat_id, message, is_notification=False):
+    try:
+        if is_notification:
+            await rate_limit_semaphore.acquire()
+        await run_in_executor(bot.send_message, chat_id, message)
+    except telebot.apihelper.ApiTelegramException as e:
+        if "429" in str(e):
+            app.logger.warning(f"Rate limit exceeded for chat_id {chat_id}. Retrying...")
+            await asyncio.sleep(1)
+            await send_message(chat_id, message, is_notification)
+        else:
+            app.logger.error(f"Failed to send message to {chat_id}: {e}")
+    except Exception as e:
+        app.logger.error(f"Error sending message to {chat_id}: {e}")
+        await check_telegram_api()
+    finally:
+        if is_notification:
+            rate_limit_semaphore.release()
+
+async def send_notification_message(chat_id, message):
+    await send_message(chat_id, message, is_notification=True)
+
+async def run_in_executor(func, *args):
+    loop = asyncio.get_event_loop()
+    with ThreadPoolExecutor() as pool:
+        return await loop.run_in_executor(pool, func, *args)
+
+async def check_telegram_api():
+    try:
+        async with aiohttp.ClientSession() as session:
+            async with session.get('https://api.telegram.org') as response:
+                if response.status == 200:
+                    app.logger.info("Telegram API is reachable.")
+                else:
+                    app.logger.error("Telegram API is not reachable.")
+    except Exception as e:
+        app.logger.error(f"Error checking Telegram API: {e}")
+
 @app.route('/webhook', methods=['POST'])
 def webhook():
     data = request.get_json()
@@ -673,14 +756,9 @@ def webhook():
         if region_active:
             message = format_message(data)
             for chat_id, username in results:
-                try:
-                    app.logger.debug(f"Sending message: {message} to chat_id={chat_id}, username={username}")
-                    bot.send_message(chat_id, message)
-                    app.logger.info(f"Sent alert to {chat_id} ({username}) for region {region_id}")
-                except telebot.apihelper.ApiTelegramException as e:
-                    app.logger.error(f"Failed to send message to {chat_id} ({username}): {e}")
-                except Exception as e:
-                    app.logger.error(f"Error sending message to {chat_id} ({username}): {e}")
+                app.logger.debug(f"Queueing message: {message} to chat_id={chat_id}, username={username}")
+                send_to_queue({'chat_id': chat_id, 'message': message})
+                app.logger.info(f"Queued alert for {chat_id} ({username}) for region {region_id}")
 
         conn.commit()
         conn.close()
@@ -701,7 +779,12 @@ if __name__ == '__main__':
     init_db()
 
     # Start Flask app in a separate thread
-    Thread(target=app.run, kwargs={'port': 5000, 'debug': True, 'use_reloader': False}, daemon=True).start()
+    Thread(target=app.run, kwargs={'port': 5000, 'host': '0.0.0.0', 'debug': True, 'use_reloader': False}, daemon=True).start()
 
-    # Start bot polling
-    run_polling()
+    # Start bot polling in a separate thread
+    Thread(target=run_polling, daemon=True).start()
+
+    # Start async message consumer
+    loop = asyncio.get_event_loop()
+    loop.create_task(consume_from_queue())
+    loop.run_forever()