Update api/utils.py

api/utils.py

@@ -1,28 +1,32 @@
 from datetime import datetime
 import json
+import uuid
+import asyncio
+import random
 from typing import Any, Dict, Optional
 
 import httpx
+from fastapi import HTTPException
 from api.config import (
     MODEL_MAPPING,
-    headers,
+    get_headers_api_chat,
+    get_headers_chat,
+    BASE_URL,
     AGENT_MODE,
     TRENDING_AGENT_MODE,
-    BASE_URL,
     MODEL_PREFIXES,
     MODEL_REFERERS
 )
-from fastapi import HTTPException
 from api.models import ChatRequest
-
 from api.logger import setup_logger
 
-import uuid
-import asyncio
-import random  # Newly added imports
-
 logger = setup_logger(__name__)
 
+# Helper function to create a unique chat ID
+def generate_chat_id() -> str:
+    return f"chat-{uuid.uuid4()}"
+
+# Helper function to create chat completion data
 def create_chat_completion_data(
     content: str, model: str, timestamp: int, finish_reason: Optional[str] = None
 ) -> Dict[str, Any]:
@@ -41,6 +45,7 @@ def create_chat_completion_data(
         "usage": None,
     }
 
+# Function to convert message to dictionary format with optional model prefix
 def message_to_dict(message, model_prefix: Optional[str] = None):
     if isinstance(message.content, str):
         content = message.content
@@ -63,6 +68,7 @@ def message_to_dict(message, model_prefix: Optional[str] = None):
     else:
         return {"role": message.role, "content": message.content}
 
+# Function to strip model prefix from content if present
 def strip_model_prefix(content: str, model_prefix: Optional[str] = None) -> str:
     """Remove the model prefix from the response content if present."""
     if model_prefix and content.startswith(model_prefix):
@@ -71,16 +77,17 @@ def strip_model_prefix(content: str, model_prefix: Optional[str] = None) -> str:
     logger.debug("No prefix to strip from content.")
     return content
 
+# Process streaming response with headers from config.py
 async def process_streaming_response(request: ChatRequest):
+    chat_id = generate_chat_id()
     agent_mode = AGENT_MODE.get(request.model, {})
     trending_agent_mode = TRENDING_AGENT_MODE.get(request.model, {})
     model_prefix = MODEL_PREFIXES.get(request.model, "")
     referer_path = MODEL_REFERERS.get(request.model, f"/?model={request.model}")
     referer_url = f"{BASE_URL}{referer_path}"
 
-    # Update headers with dynamic Referer
-    dynamic_headers = headers.copy()
-    dynamic_headers['Referer'] = referer_url
+    # Generate headers for API chat request
+    headers_api_chat = get_headers_api_chat(referer_url)
 
     # Introduce delay for 'o1-preview' model
     if request.model == 'o1-preview':
@@ -89,6 +96,7 @@ async def process_streaming_response(request: ChatRequest):
         await asyncio.sleep(delay_seconds)
 
     json_data = {
+        "id": chat_id,
         "messages": [message_to_dict(msg, model_prefix=model_prefix) for msg in request.messages],
         "previewToken": None,
         "userId": None,
@@ -116,7 +124,7 @@ async def process_streaming_response(request: ChatRequest):
             async with client.stream(
                 "POST",
                 f"{BASE_URL}/api/chat",
-                headers=dynamic_headers,
+                headers=headers_api_chat,
                 json=json_data,
                 timeout=100,
             ) as response:
@@ -134,30 +142,28 @@ async def process_streaming_response(request: ChatRequest):
                 yield f"data: {json.dumps(create_chat_completion_data('', request.model, timestamp, 'stop'))}\n\n"
                 yield "data: [DONE]\n\n"
         except httpx.HTTPStatusError as e:
-            logger.error(f"HTTP error occurred: {e}")
+            logger.error(f"HTTP error occurred for Chat ID {chat_id}: {e}")
             raise HTTPException(status_code=e.response.status_code, detail=str(e))
         except httpx.RequestError as e:
-            logger.error(f"Error occurred during request: {e}")
+            logger.error(f"Error occurred during request for Chat ID {chat_id}: {e}")
             raise HTTPException(status_code=500, detail=str(e))
 
+# Process non-streaming response with headers from config.py
 async def process_non_streaming_response(request: ChatRequest):
+    chat_id = generate_chat_id()
     agent_mode = AGENT_MODE.get(request.model, {})
     trending_agent_mode = TRENDING_AGENT_MODE.get(request.model, {})
     model_prefix = MODEL_PREFIXES.get(request.model, "")
     referer_path = MODEL_REFERERS.get(request.model, f"/?model={request.model}")
     referer_url = f"{BASE_URL}{referer_path}"
+    chat_url = f"{BASE_URL}/chat/{chat_id}?model={request.model}"
 
-    # Update headers with dynamic Referer
-    dynamic_headers = headers.copy()
-    dynamic_headers['Referer'] = referer_url
-
-    # Introduce delay for 'o1-preview' model
-    if request.model == 'o1-preview':
-        delay_seconds = random.randint(20, 60)
-        logger.info(f"Introducing a delay of {delay_seconds} seconds for model 'o1-preview'")
-        await asyncio.sleep(delay_seconds)
+    # Generate headers for API chat request and chat request
+    headers_api_chat = get_headers_api_chat(referer_url)
+    headers_chat = get_headers_chat(chat_url, next_action=str(uuid.uuid4()), next_router_state_tree=json.dumps([""]))
 
     json_data = {
+        "id": chat_id,
         "messages": [message_to_dict(msg, model_prefix=model_prefix) for msg in request.messages],
         "previewToken": None,
         "userId": None,
@@ -179,20 +185,21 @@ async def process_non_streaming_response(request: ChatRequest):
         "mobileClient": False,
         "userSelectedModel": MODEL_MAPPING.get(request.model, request.model),
     }
+
     full_response = ""
     async with httpx.AsyncClient() as client:
         try:
             async with client.stream(
-                method="POST", url=f"{BASE_URL}/api/chat", headers=dynamic_headers, json=json_data
+                method="POST", url=f"{BASE_URL}/api/chat", headers=headers_api_chat, json=json_data
             ) as response:
                 response.raise_for_status()
                 async for chunk in response.aiter_text():
                     full_response += chunk
         except httpx.HTTPStatusError as e:
-            logger.error(f"HTTP error occurred: {e}")
+            logger.error(f"HTTP error occurred for Chat ID {chat_id}: {e}")
             raise HTTPException(status_code=e.response.status_code, detail=str(e))
         except httpx.RequestError as e:
-            logger.error(f"Error occurred during request: {e}")
+            logger.error(f"Error occurred during request for Chat ID {chat_id}: {e}")
             raise HTTPException(status_code=500, detail=str(e))
     if full_response.startswith("$@$v=undefined-rv1$@$"):
         full_response = full_response[21:]
@@ -213,4 +220,4 @@ async def process_non_streaming_response(request: ChatRequest):
             }
         ],
         "usage": None,
-    }
+    }