Update app.py

app.py

@@ -4,6 +4,7 @@ import aiohttp
 import asyncio
 import datetime
 import sys
+import traceback
 from aiohttp import web
 from urllib.parse import parse_qs
 
@@ -86,9 +87,20 @@ async def log_request(request, response):
 
 @web.middleware
 async def logging_middleware(request, handler):
-    response = await handler(request)
-    await log_request(request, response)
-    return response
+    start_time = datetime.datetime.now()
+    try:
+        response = await handler(request)
+        await log_request(request, response)
+        end_time = datetime.datetime.now()
+        print(f"Request processing time: {end_time - start_time}", flush=True)
+        return response
+    except Exception as e:
+        end_time = datetime.datetime.now()
+        print(f"Error occurred: {str(e)}", flush=True)
+        print(f"Request processing time: {end_time - start_time}", flush=True)
+        print("Traceback:", flush=True)
+        traceback.print_exc()
+        return web.Response(text=f"Internal Server Error: {str(e)}", status=500)
 
 async def handle_request(request):
     if request.path == '/':
@@ -96,11 +108,16 @@ async def handle_request(request):
         if 'url' in query_params:
             url = query_params['url'][0]
             try:
+                print(f"Fetching URL: {url}", flush=True)
                 async with aiohttp.ClientSession() as session:
                     input_text = await fetch_url(url, session)
+                print(f"URL content length: {len(input_text)}", flush=True)
                 result = await extract_and_transform_proxies(input_text)
+                print(f"Transformed result length: {len(result)}", flush=True)
                 return web.Response(text=result, content_type='text/plain')
             except Exception as e:
+                print(f"Error processing request: {str(e)}", flush=True)
+                traceback.print_exc()
                 return web.Response(text=f"Error: {str(e)}", status=500)
         else:
             usage_guide = """