From 9ff384978c569de6876d162eacc643672157a028 Mon Sep 17 00:00:00 2001
From: kqlio67 <kqlio67@users.noreply.github.com>
Date: Fri, 27 Sep 2024 00:08:56 +0300
Subject: feat(g4f/Provider/AIChatFree.py): add AIChatFree provider

---
 g4f/Provider/AIChatFree.py | 76 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 g4f/Provider/AIChatFree.py

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

diff --git a/g4f/Provider/AIChatFree.py b/g4f/Provider/AIChatFree.py
new file mode 100644
index 00000000..71c04681
--- /dev/null
+++ b/g4f/Provider/AIChatFree.py
@@ -0,0 +1,76 @@
+from __future__ import annotations
+
+import time
+from hashlib import sha256
+
+from aiohttp import BaseConnector, ClientSession
+
+from ..errors import RateLimitError
+from ..requests import raise_for_status
+from ..requests.aiohttp import get_connector
+from ..typing import AsyncResult, Messages
+from .base_provider import AsyncGeneratorProvider, ProviderModelMixin
+
+
+class AIChatFree(AsyncGeneratorProvider, ProviderModelMixin):
+    url = "https://aichatfree.info/"
+    working = True
+    supports_stream = True
+    supports_message_history = True
+    default_model = 'gemini-pro'
+
+    @classmethod
+    async def create_async_generator(
+        cls,
+        model: str,
+        messages: Messages,
+        proxy: str = None,
+        connector: BaseConnector = None,
+        **kwargs,
+    ) -> AsyncResult:
+        headers = {
+            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:122.0) Gecko/20100101 Firefox/122.0",
+            "Accept": "*/*",
+            "Accept-Language": "en-US,en;q=0.5",
+            "Accept-Encoding": "gzip, deflate, br",
+            "Content-Type": "text/plain;charset=UTF-8",
+            "Referer": f"{cls.url}/",
+            "Origin": cls.url,
+            "Sec-Fetch-Dest": "empty",
+            "Sec-Fetch-Mode": "cors",
+            "Sec-Fetch-Site": "same-origin",
+            "Connection": "keep-alive",
+            "TE": "trailers",
+        }
+        async with ClientSession(
+            connector=get_connector(connector, proxy), headers=headers
+        ) as session:
+            timestamp = int(time.time() * 1e3)
+            data = {
+                "messages": [
+                    {
+                        "role": "model" if message["role"] == "assistant" else "user",
+                        "parts": [{"text": message["content"]}],
+                    }
+                    for message in messages
+                ],
+                "time": timestamp,
+                "pass": None,
+                "sign": generate_signature(timestamp, messages[-1]["content"]),
+            }
+            async with session.post(
+                f"{cls.url}/api/generate", json=data, proxy=proxy
+            ) as response:
+                if response.status == 500:
+                    if "Quota exceeded" in await response.text():
+                        raise RateLimitError(
+                            f"Response {response.status}: Rate limit reached"
+                        )
+                await raise_for_status(response)
+                async for chunk in response.content.iter_any():
+                    yield chunk.decode(errors="ignore")
+
+
+def generate_signature(time: int, text: str, secret: str = ""):
+    message = f"{time}:{text}:{secret}"
+    return sha256(message.encode()).hexdigest()
-- 
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