Update main.py

main.py

@@ -17,7 +17,7 @@ logging.basicConfig(
 )
 TARGET_URL = os.getenv("TARGET_URL", "https://api.gmi-serving.com")
 MAX_RETRIES = int(os.getenv("MAX_RETRIES", "15"))
-DEFAULT_RETRY_CODES = "429,500,502,503,504"
+DEFAULT_RETRY_CODES = "403,429,500,502,503,504"
 RETRY_CODES_STR = os.getenv("RETRY_CODES", DEFAULT_RETRY_CODES)
 try:
     RETRY_STATUS_CODES = {int(code.strip()) for code in RETRY_CODES_STR.split(',')}
@@ -124,6 +124,16 @@ def get_random_sec_ch_ua_platform():
     ]
     return random.choice(platforms)
 
+def get_random_sec_ch_ua_full_version():
+    """Returns a random sec-ch-ua-full-version header value."""
+    versions = [
+        "141.0.0.0",
+        "131.0.0",
+        "18.0.0",
+        "140.0.0.0",
+    ]
+    return random.choice(versions)
+
 # --- HTTPX Client Lifecycle Management ---
 @asynccontextmanager
 async def lifespan(app: FastAPI):
@@ -173,6 +183,7 @@ async def reverse_proxy_handler(request: Request):
         "sec-ch-ua": get_random_sec_ch_ua(),
         "sec-ch-ua-mobile": random.choice(["?0", "?1"]),
         "sec-ch-ua-platform": get_random_sec_ch_ua_platform(),
+        "sec-ch-ua-full-version": get_random_sec_ch_ua_full_version(),
         "priority": random.choice(["u=0, i", "u=1", "u=2"]),
         "x-forwarded-for": random_ip,
         "x-real-ip": random_ip,
@@ -184,8 +195,8 @@ async def reverse_proxy_handler(request: Request):
         "x-forwarded-proto": random.choice(["http", "https"]),
         "client-ip": random_ip,
         "x-client-ip": random_ip,
-        "true-client-ip": random_ip,
-        "cf-connecting-ip": random_ip,
+        "x-forwarded-client-ip": random_ip,
+        "via": f"1.1 {random_ip}",
         "forwarded": f"for={random_ip};proto=https",
     }
     request_headers.update(specific_headers)
@@ -234,7 +245,7 @@ async def reverse_proxy_handler(request: Request):
             logging.warning(f"Attempt {attempt + 1}/{MAX_RETRIES} for {url.path} failed with connection error: {e}")
             if attempt == MAX_RETRIES - 1:
                 break
-            await asyncio.sleep(2 ** attempt + random.uniform(0.1, 0.7))  # Exponential backoff with increased jitter
+            await asyncio.sleep(0.5 + 2 ** attempt + random.uniform(0.2, 0.8))  # Base delay + exponential backoff with jitter
         
         except Exception as e:
             last_exception = e