From 2fb932220daccc08d25da1ee558fe975cf016b3a Mon Sep 17 00:00:00 2001
From: Heiner Lohaus <hlohaus@users.noreply.github.com>
Date: Sun, 12 Nov 2023 18:03:04 +0100
Subject: Add Berlin and Koala Provider

---
 g4f/Provider/Koala.py | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 g4f/Provider/Koala.py

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

diff --git a/g4f/Provider/Koala.py b/g4f/Provider/Koala.py
new file mode 100644
index 00000000..70a40882
--- /dev/null
+++ b/g4f/Provider/Koala.py
@@ -0,0 +1,71 @@
+from __future__ import annotations
+
+import random
+import string
+import json
+from aiohttp import ClientSession
+
+from ..typing import AsyncResult, Messages
+from .base_provider import AsyncGeneratorProvider
+
+class Koala(AsyncGeneratorProvider):
+    url = "https://koala.sh"
+    supports_gpt_35_turbo = True
+    supports_message_history = True
+    working = True
+
+    @classmethod
+    async def create_async_generator(
+        cls,
+        model: str,
+        messages: Messages,
+        proxy: str = None,
+        **kwargs
+    ) -> AsyncResult:
+        if not model:
+            model = "gpt-3.5-turbo"
+        headers = {
+            "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/119.0",
+            "Accept": "text/event-stream",
+            "Accept-Language": "de,en-US;q=0.7,en;q=0.3",
+            "Accept-Encoding": "gzip, deflate, br",
+            "Referer": f"{cls.url}/chat",
+            "Content-Type": "application/json",
+            "Flag-Real-Time-Data": "false",
+            "Visitor-ID": random_string(),
+            "Origin": cls.url,
+            "Alt-Used": "koala.sh",
+            "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:
+            data = {
+                "input": messages[-1]["content"],
+                "inputHistory": [
+                    message["content"]
+                    for message in messages
+                    if message["role"] == "user"
+                ],
+                "outputHistory": [
+                    message["content"]
+                    for message in messages
+                    if message["role"] == "assistant"
+                ],
+                "model": model,
+            }
+            async with session.post(f"{cls.url}/api/gpt/", json=data, proxy=proxy) as response:
+                response.raise_for_status()
+                async for chunk in response.content:
+                    if chunk.startswith(b"data: "):
+                        yield json.loads(chunk[6:])
+
+
+def random_string(length: int = 20):
+    return ''.join(random.choice(
+        string.ascii_letters + string.digits
+    ) for _ in range(length))
\ No newline at end of file
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