From 13ffdcd61a5c5cabb1fe293e873a80af8328ea35 Mon Sep 17 00:00:00 2001
From: Heiner Lohaus <heiner@lohaus.eu>
Date: Sat, 14 Oct 2023 00:31:48 +0200
Subject: Fix Opchatgpts and ChatForAi Provider Deprecate Vitalentum and Aivvm
 Provider

---
 g4f/Provider/ChatForAi.py | 72 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 g4f/Provider/ChatForAi.py

(limited to 'g4f/Provider/ChatForAi.py')

diff --git a/g4f/Provider/ChatForAi.py b/g4f/Provider/ChatForAi.py
new file mode 100644
index 00000000..c93e76ee
--- /dev/null
+++ b/g4f/Provider/ChatForAi.py
@@ -0,0 +1,72 @@
+from __future__ import annotations
+
+import time
+import hashlib
+
+from ..typing import AsyncResult, Messages
+from ..requests import StreamSession
+from .base_provider import AsyncGeneratorProvider
+
+
+class ChatForAi(AsyncGeneratorProvider):
+    url                   = "https://chatforai.store"
+    working               = True
+    supports_gpt_35_turbo = True
+
+    @classmethod
+    async def create_async_generator(
+        cls,
+        model: str,
+        messages: Messages,
+        proxy: str = None,
+        timeout: int = 120,
+        **kwargs
+    ) -> AsyncResult:
+        headers = {
+            "Content-Type": "text/plain;charset=UTF-8",
+            "Origin": cls.url,
+            "Referer": f"{cls.url}/?r=b",
+        }
+        async with StreamSession(impersonate="chrome107", headers=headers, proxies={"https": proxy}, timeout=timeout) as session:
+            prompt = messages[-1]["content"]
+            timestamp = int(time.time() * 1e3)
+            conversation_id = f"id_{timestamp-123}"
+            data = {
+                "conversationId": conversation_id,
+                "conversationType": "chat_continuous",
+                "botId": "chat_continuous",
+                "globalSettings":{
+                    "baseUrl": "https://api.openai.com",
+                    "model": model if model else "gpt-3.5-turbo",
+                    "messageHistorySize": 5,
+                    "temperature": 0.7,
+                    "top_p": 1,
+                    **kwargs
+                },
+                "botSettings": {},
+                "prompt":  prompt,
+                "messages": messages,
+                "timestamp": timestamp,
+                "sign": generate_signature(timestamp, prompt, conversation_id)
+            }
+            async with session.post(f"{cls.url}/api/handle/provider-openai", json=data) as response:
+                response.raise_for_status()
+                async for chunk in response.iter_content():
+                    if b"https://chatforai.store" in chunk:
+                        raise RuntimeError(f"Response: {chunk.decode()}")
+                    yield chunk.decode()
+
+    @classmethod
+    @property
+    def params(cls):
+        params = [
+            ("model", "str"),
+            ("messages", "list[dict[str, str]]"),
+            ("stream", "bool"),
+        ]
+        param = ", ".join([": ".join(p) for p in params])
+        return f"g4f.provider.{cls.__name__} supports: ({param})"
+    
+def generate_signature(timestamp: int, message: str, id: str):
+    buffer = f"{timestamp}:{id}:{message}:7YN8z6d6"
+    return hashlib.sha256(buffer.encode()).hexdigest()
\ No newline at end of file
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