From c1adfbee8e15406dbdce75f87de47dc1c0dd17df Mon Sep 17 00:00:00 2001
From: Heiner Lohaus <heiner@lohaus.eu>
Date: Sun, 15 Oct 2023 19:10:25 +0200
Subject: Add Llama2 and NoowAi Provider

---
 g4f/Provider/Llama2.py | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 g4f/Provider/Llama2.py

(limited to 'g4f/Provider/Llama2.py')

diff --git a/g4f/Provider/Llama2.py b/g4f/Provider/Llama2.py
new file mode 100644
index 00000000..b59fde12
--- /dev/null
+++ b/g4f/Provider/Llama2.py
@@ -0,0 +1,76 @@
+from __future__ import annotations
+
+from aiohttp import ClientSession
+
+from ..typing import AsyncResult, Messages
+from .base_provider import AsyncGeneratorProvider
+
+models = {
+    "7B": {"name": "Llama 2 7B", "version": "d24902e3fa9b698cc208b5e63136c4e26e828659a9f09827ca6ec5bb83014381", "shortened":"7B"},
+    "13B": {"name": "Llama 2 13B", "version": "9dff94b1bed5af738655d4a7cbcdcde2bd503aa85c94334fe1f42af7f3dd5ee3", "shortened":"13B"},
+    "70B": {"name": "Llama 2 70B", "version": "2796ee9483c3fd7aa2e171d38f4ca12251a30609463dcfd4cd76703f22e96cdf", "shortened":"70B"},
+    "Llava": {"name": "Llava 13B", "version": "6bc1c7bb0d2a34e413301fee8f7cc728d2d4e75bfab186aa995f63292bda92fc", "shortened":"Llava"}
+}
+
+class Llama2(AsyncGeneratorProvider):
+    url                   = "https://www.llama2.ai"
+    supports_gpt_35_turbo = True
+    working               = True
+
+    @classmethod
+    async def create_async_generator(
+        cls,
+        model: str,
+        messages: Messages,
+        proxy: str = None,
+        **kwargs
+    ) -> AsyncResult:
+        if not model:
+            model = "70B"
+        if model not in models:
+            raise ValueError(f"Model are not supported: {model}")
+        version = models[model]["version"]
+        headers = {
+            "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/118.0",
+            "Accept": "*/*",
+            "Accept-Language": "de,en-US;q=0.7,en;q=0.3",
+            "Accept-Encoding": "gzip, deflate, br",
+            "Referer": f"{cls.url}/",
+            "Content-Type": "text/plain;charset=UTF-8",
+            "Origin": cls.url,
+            "Connection": "keep-alive",
+            "Sec-Fetch-Dest": "empty",
+            "Sec-Fetch-Mode": "cors",
+            "Sec-Fetch-Site": "same-origin",
+            "Pragma": "no-cache",
+            "Cache-Control": "no-cache",
+            "TE": "trailers"
+        }
+        async with ClientSession(headers=headers) as session:
+            prompt = format_prompt(messages)
+            data = {
+                "prompt": prompt,
+                "version": version,
+                "systemPrompt": kwargs.get("system_message", "You are a helpful assistant."),
+                "temperature": kwargs.get("temperature", 0.75),
+                "topP": kwargs.get("top_p", 0.9),
+                "maxTokens": kwargs.get("max_tokens", 1024),
+                "image": None
+            }
+            started = False
+            async with session.post(f"{cls.url}/api", json=data, proxy=proxy) as response:
+                response.raise_for_status()
+                async for chunk in response.content.iter_any():
+                    if not started:
+                        chunk = chunk.lstrip()
+                        started = True
+                    yield chunk.decode()
+            
+def format_prompt(messages: Messages):
+    messages = [
+        f"[INST]{message['content']}[/INST]"
+        if message["role"] == "user"
+        else message["content"]
+        for message in messages
+    ]
+    return "\n".join(messages)
\ No newline at end of file
-- 
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