From ec2de56bbde0d31bcc146344d416cbb109c2ffb7 Mon Sep 17 00:00:00 2001
From: Heiner Lohaus <hlohaus@users.noreply.github.com>
Date: Tue, 23 Jan 2024 01:50:44 +0100
Subject: [PATCH] Add PerplexityLabs Provider

---
 g4f/Provider/PerplexityLabs.py | 97 ++++++++++++++++++++++++++++++++++
 g4f/Provider/__init__.py       |  5 +-
 2 files changed, 100 insertions(+), 2 deletions(-)
 create mode 100644 g4f/Provider/PerplexityLabs.py

diff --git a/g4f/Provider/PerplexityLabs.py b/g4f/Provider/PerplexityLabs.py
new file mode 100644
index 00000000..7e76aeef
--- /dev/null
+++ b/g4f/Provider/PerplexityLabs.py
@@ -0,0 +1,97 @@
+from __future__ import annotations
+
+import random
+import json
+from aiohttp import ClientSession, WSMsgType
+
+from ..typing import AsyncResult, Messages
+from .base_provider import AsyncGeneratorProvider
+
+API_URL = "https://labs-api.perplexity.ai/socket.io/"
+WS_URL = "wss://labs-api.perplexity.ai/socket.io/"
+MODELS = ['pplx-7b-online', 'pplx-70b-online', 'pplx-7b-chat', 'pplx-70b-chat', 'mistral-7b-instruct', 
+    'codellama-34b-instruct', 'llama-2-70b-chat', 'llava-7b-chat', 'mixtral-8x7b-instruct', 
+    'mistral-medium', 'related']
+DEFAULT_MODEL = MODELS[1]
+MODEL_MAP = {
+    "mistralai/Mistral-7B-Instruct-v0.1": "mistral-7b-instruct", 
+    "meta-llama/Llama-2-70b-chat-hf": "llama-2-70b-chat",
+    "mistralai/Mixtral-8x7B-Instruct-v0.1": "mixtral-8x7b-instruct",
+}
+
+class PerplexityLabs(AsyncGeneratorProvider):
+    url = "https://labs.perplexity.ai"    
+    working = True
+    supports_gpt_35_turbo = True
+
+    @classmethod
+    async def create_async_generator(
+        cls,
+        model: str,
+        messages: Messages,
+        proxy: str = None,
+        **kwargs
+    ) -> AsyncResult:
+        if not model:
+            model = DEFAULT_MODEL
+        elif model in MODEL_MAP:
+            model = MODEL_MAP[model]
+        elif model not in MODELS:
+            raise ValueError(f"Model is not supported: {model}")
+        headers = {
+            "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0",
+            "Accept": "*/*",
+            "Accept-Language": "de,en-US;q=0.7,en;q=0.3",
+            "Accept-Encoding": "gzip, deflate, br",
+            "Origin": cls.url,
+            "Connection": "keep-alive",
+            "Referer": f"{cls.url}/",
+            "Sec-Fetch-Dest": "empty",
+            "Sec-Fetch-Mode": "cors",
+            "Sec-Fetch-Site": "same-site",
+            "TE": "trailers",
+        }
+        async with ClientSession(headers=headers) as session:
+            t = format(random.getrandbits(32), '08x')
+            async with session.get(
+                f"{API_URL}?EIO=4&transport=polling&t={t}",
+                proxy=proxy
+            ) as response:
+                text = await response.text()
+
+            sid = json.loads(text[1:])['sid']
+            post_data = '40{"jwt":"anonymous-ask-user"}'
+            async with session.post(
+                f'{API_URL}?EIO=4&transport=polling&t={t}&sid={sid}',
+                data=post_data,
+                proxy=proxy
+            ) as response:
+                assert await response.text() == 'OK'
+                
+            async with session.ws_connect(f'{WS_URL}?EIO=4&transport=websocket&sid={sid}', autoping=False) as ws:
+                await ws.send_str('2probe')
+                assert(await ws.receive_str() == '3probe')
+                await ws.send_str('5')
+                assert(await ws.receive_str())
+                assert(await ws.receive_str() == '6')
+                message_data = {
+                    'version': '2.2',
+                    'source': 'default',
+                    'model': model,
+                    'messages': messages
+                }
+                await ws.send_str('42' + json.dumps(['perplexity_playground', message_data]))
+                last_message = 0
+                while True:
+                    message = await ws.receive_str()
+                    if message == '2':
+                        await ws.send_str('3')
+                        continue
+                    try:
+                        data = json.loads(message[2:])[1]
+                        yield data["output"][last_message:]
+                        last_message = len(data["output"])
+                        if data["final"]:
+                            break
+                    except:
+                        raise RuntimeError(f"Message: {message}")
\ No newline at end of file
diff --git a/g4f/Provider/__init__.py b/g4f/Provider/__init__.py
index ee8d2c1b..5ac5cfca 100644
--- a/g4f/Provider/__init__.py
+++ b/g4f/Provider/__init__.py
@@ -9,10 +9,11 @@ from .needs_auth      import *
 from .unfinished      import *
 from .selenium        import *
 
-from .Aura            import Aura
 from .AiAsk           import AiAsk
 from .AiChatOnline    import AiChatOnline
 from .AItianhu        import AItianhu
+from .Aura            import Aura
+from .Bestim          import Bestim
 from .Bing            import Bing
 from .ChatAnywhere    import ChatAnywhere
 from .ChatBase        import ChatBase
@@ -45,12 +46,12 @@ from .Koala           import Koala
 from .Liaobots        import Liaobots
 from .Llama2          import Llama2
 from .OnlineGpt       import OnlineGpt
+from .PerplexityLabs  import PerplexityLabs
 from .Phind           import Phind
 from .Pi              import Pi
 from .Vercel          import Vercel
 from .Ylokh           import Ylokh
 from .You             import You
-from .Bestim          import Bestim
 
 import sys