From be9b8f796cb01483cf6dd807dfc6a71c51433c16 Mon Sep 17 00:00:00 2001
From: Heiner Lohaus <heiner@lohaus.eu>
Date: Tue, 3 Oct 2023 22:12:56 +0200
Subject: [PATCH] Add streaming in openai chat Fetch access token with
 chromedriver

---
 g4f/Provider/OpenaiChat.py | 73 ++++++++++++++++++++++++++------------
 g4f/Provider/helper.py     | 26 +++++++++++++-
 2 files changed, 75 insertions(+), 24 deletions(-)

diff --git a/g4f/Provider/OpenaiChat.py b/g4f/Provider/OpenaiChat.py
index f7dc8298..fbd26d7c 100644
--- a/g4f/Provider/OpenaiChat.py
+++ b/g4f/Provider/OpenaiChat.py
@@ -1,14 +1,14 @@
 from __future__ import annotations
 
-from curl_cffi.requests import AsyncSession
 import uuid
 import json
 
-from .base_provider import AsyncProvider, get_cookies, format_prompt
+from .base_provider import AsyncGeneratorProvider
+from .helper import get_browser, get_cookies, format_prompt
 from ..typing import AsyncGenerator
+from ..requests import StreamSession
 
-
-class OpenaiChat(AsyncProvider):
+class OpenaiChat(AsyncGeneratorProvider):
     url                   = "https://chat.openai.com"
     needs_auth            = True
     working               = True
@@ -16,7 +16,7 @@ class OpenaiChat(AsyncProvider):
     _access_token         = None
 
     @classmethod
-    async def create_async(
+    async def create_async_generator(
         cls,
         model: str,
         messages: list[dict[str, str]],
@@ -32,7 +32,7 @@ class OpenaiChat(AsyncProvider):
             "Accept": "text/event-stream",
             "Authorization": f"Bearer {access_token}",
         }
-        async with AsyncSession(proxies=proxies, headers=headers, impersonate="chrome107") as session:
+        async with StreamSession(proxies=proxies, headers=headers, impersonate="chrome107") as session:
             messages = [
                 {
                     "id": str(uuid.uuid4()),
@@ -48,31 +48,58 @@ class OpenaiChat(AsyncProvider):
                 "model": "text-davinci-002-render-sha",
                 "history_and_training_disabled": True,
             }
-            response = await session.post("https://chat.openai.com/backend-api/conversation", json=data)
-            response.raise_for_status()
-            last_message = None
-            for line in response.content.decode().splitlines():
-                if line.startswith("data: "):
-                    line = line[6:]
-                    if line == "[DONE]":
-                        break
-                    line = json.loads(line)
-                    if "message" in line:
-                        last_message = line["message"]["content"]["parts"][0]
-            return last_message
+            async with session.post(f"{cls.url}/backend-api/conversation", json=data) as response:
+                response.raise_for_status()
+                last_message = ""
+                async for line in response.iter_lines():
+                    if line.startswith(b"data: "):
+                        line = line[6:]
+                        if line == b"[DONE]":
+                            break
+                        line = json.loads(line)
+                        if "message" in line and not line["message"]["end_turn"]:
+                            new_message = line["message"]["content"]["parts"][0]
+                            yield new_message[len(last_message):]
+                            last_message = new_message
 
+    @classmethod
+    def fetch_access_token(cls) -> str:
+        try:
+            from selenium.webdriver.common.by import By
+            from selenium.webdriver.support.ui import WebDriverWait
+            from selenium.webdriver.support import expected_conditions as EC
+        except ImportError:
+            return
+
+        driver = get_browser()
+        if not driver:
+            return
+
+        driver.get(f"{cls.url}/")
+        try:
+            WebDriverWait(driver, 1200).until(
+                EC.presence_of_element_located((By.ID, "prompt-textarea"))
+            )
+            javascript = "return (await (await fetch('/api/auth/session')).json())['accessToken']"
+            return driver.execute_script(javascript)
+        finally:
+            driver.quit()
 
     @classmethod
     async def get_access_token(cls, cookies: dict = None, proxies: dict = None) -> str:
         if not cls._access_token:
             cookies = cookies if cookies else get_cookies("chat.openai.com")
-            async with AsyncSession(proxies=proxies, cookies=cookies, impersonate="chrome107") as session:
-                response = await session.get("https://chat.openai.com/api/auth/session")
-                response.raise_for_status()
-                cls._access_token = response.json()["accessToken"]
+            async with StreamSession(proxies=proxies, cookies=cookies, impersonate="chrome107") as session:
+                async with session.get(f"{cls.url}/api/auth/session") as response:
+                    response.raise_for_status()
+                    auth = await response.json()
+                    if "accessToken" in auth:
+                        cls._access_token = auth["accessToken"]
+            cls._access_token = cls.fetch_access_token()
+            if not cls._access_token:
+                raise RuntimeError("Missing access token")
         return cls._access_token
 
-
     @classmethod
     @property
     def params(cls):
diff --git a/g4f/Provider/helper.py b/g4f/Provider/helper.py
index 234cdaa1..8f09239a 100644
--- a/g4f/Provider/helper.py
+++ b/g4f/Provider/helper.py
@@ -56,4 +56,28 @@ def format_prompt(messages: list[dict[str, str]], add_special_tokens=False):
         )
         return f"{formatted}\nAssistant:"
     else:
-        return messages[0]["content"]
\ No newline at end of file
+        return messages[0]["content"]
+    
+
+def get_browser(user_data_dir: str = None):
+    try:
+        from undetected_chromedriver import Chrome
+    except ImportError:
+        return None
+
+    def get_user_data_dir():
+        dirs = [
+            '~/.config/google-chrome/Default',
+            '~/.var/app/com.google.Chrome/config/google-chrome/Default',
+            '%LOCALAPPDATA%\\Google\\Chrome\\User Data\\Default',
+            '~/Library/Application Support/Google/Chrome/Default',
+        ]
+        from os import path
+        for dir in dirs:
+            dir = path.expandvars(dir)
+            if path.exists(dir):
+                return dir
+    if not user_data_dir:
+        user_data_dir = get_user_data_dir()
+
+    return Chrome(user_data_dir=user_data_dir)
\ No newline at end of file