4 files changed, 157 insertions, 2 deletions

diff --git a/g4f/Provider/GigaChat.py b/g4f/Provider/GigaChat.py
new file mode 100644
index 00000000..699353b1
--- /dev/null
+++ b/g4f/Provider/GigaChat.py
@@ -0,0 +1,97 @@
+from __future__ import annotations
+
+import base64
+import os
+import ssl
+import time
+import uuid
+
+import json
+from aiohttp import ClientSession, BaseConnector, TCPConnector
+from g4f.requests import raise_for_status
+
+from ..typing import AsyncResult, Messages, ImageType
+from .base_provider import AsyncGeneratorProvider, ProviderModelMixin
+from ..image import to_bytes, is_accepted_format
+from ..errors import MissingAuthError
+from .helper import get_connector
+
+access_token = ''
+token_expires_at = 0
+
+ssl_ctx = ssl.create_default_context(
+    cafile=os.path.dirname(__file__) + '/gigachat_crt/russian_trusted_root_ca_pem.crt')
+
+
+class GigaChat(AsyncGeneratorProvider, ProviderModelMixin):
+    url = "https://developers.sber.ru/gigachat"
+    working = True
+    supports_message_history = True
+    supports_system_message = True
+    supports_stream = True
+
+    needs_auth = True
+    default_model = "GigaChat:latest"
+    models = ["GigaChat:latest", "GigaChat-Plus", "GigaChat-Pro"]
+
+    @classmethod
+    async def create_async_generator(
+            cls,
+            model: str,
+            messages: Messages,
+            stream: bool = True,
+            proxy: str = None,
+            api_key: str = None,
+            scope: str = "GIGACHAT_API_PERS",
+            update_interval: float = 0,
+            **kwargs
+    ) -> AsyncResult:
+        global access_token, token_expires_at
+        model = cls.get_model(model)
+
+        if not api_key:
+            raise MissingAuthError('Missing "api_key"')
+
+        connector = TCPConnector(ssl_context=ssl_ctx)
+
+        async with ClientSession(connector=get_connector(connector, proxy)) as session:
+            if token_expires_at - int(time.time() * 1000) < 60000:
+                async with session.post(url="https://ngw.devices.sberbank.ru:9443/api/v2/oauth",
+                                        headers={"Authorization": f"Bearer {api_key}",
+                                                 "RqUID": str(uuid.uuid4()),
+                                                 "Content-Type": "application/x-www-form-urlencoded"},
+                                        data={"scope": scope}) as response:
+                    await raise_for_status(response)
+                    data = await response.json()
+                access_token = data['access_token']
+                token_expires_at = data['expires_at']
+
+            async with session.post(url="https://gigachat.devices.sberbank.ru/api/v1/chat/completions",
+                                    headers={"Authorization": f"Bearer {access_token}"},
+                                    json={
+                                        "model": model,
+                                        "messages": messages,
+                                        "stream": stream,
+                                        "update_interval": update_interval,
+                                        **kwargs
+                                    }) as response:
+                await raise_for_status(response)
+
+                async for line in response.content:
+                    if not stream:
+                        yield json.loads(line.decode("utf-8"))['choices'][0]['message']['content']
+                        return
+
+                    if line and line.startswith(b"data:"):
+                        line = line[6:-1]  # remove "data: " prefix and "\n" suffix
+                        if line.strip() == b"[DONE]":
+                            return
+                        else:
+                            msg = json.loads(line.decode("utf-8"))['choices'][0]
+                            content = msg['delta']['content']
+
+                            if content:
+                                yield content
+
+                            if 'finish_reason' in msg:
+                                return
diff --git a/g4f/Provider/__init__.py b/g4f/Provider/__init__.py
index 8db3c0d4..50a5da31 100644
--- a/g4f/Provider/__init__.py
+++ b/g4f/Provider/__init__.py
@@ -24,6 +24,7 @@ from .DeepInfra        import DeepInfra
 from .FlowGpt          import FlowGpt
 from .FreeChatgpt      import FreeChatgpt
 from .FreeGpt          import FreeGpt
+from .GigaChat         import GigaChat
 from .GeminiPro        import GeminiPro
 from .GeminiProChat    import GeminiProChat
 from .GptTalkRu        import GptTalkRu
diff --git a/g4f/Provider/gigachat_crt/russian_trusted_root_ca_pem.crt b/g4f/Provider/gigachat_crt/russian_trusted_root_ca_pem.crt
new file mode 100644
index 00000000..4c143a21
--- /dev/null
+++ b/g4f/Provider/gigachat_crt/russian_trusted_root_ca_pem.crt
@@ -0,0 +1,33 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/g4f/models.py b/g4f/models.py
index ae2ef54b..6fcfdd14 100644
--- a/g4f/models.py
+++ b/g4f/models.py
@@ -2,7 +2,7 @@ from __future__  import annotations
 
 from dataclasses import dataclass
 
-from .Provider   import RetryProvider, ProviderType
+from .Provider import RetryProvider, ProviderType
 from .Provider   import (
     Chatgpt4Online,
     PerplexityLabs,
@@ -15,6 +15,7 @@ from .Provider   import (
     ChatgptAi,
     DeepInfra,
     ChatBase,
+    GigaChat,
     Liaobots,
     FreeGpt,
     Llama2,
@@ -95,6 +96,24 @@ gpt_4_turbo = Model(
     best_provider = Bing
 )
 
+gigachat = Model(
+    name          = 'GigaChat:latest',
+    base_provider = 'gigachat',
+    best_provider = GigaChat
+)
+
+gigachat_plus = Model(
+    name          = 'GigaChat-Plus',
+    base_provider = 'gigachat',
+    best_provider = GigaChat
+)
+
+gigachat_pro = Model(
+    name          = 'GigaChat-Pro',
+    base_provider = 'gigachat',
+    best_provider = GigaChat
+)
+
 llama2_7b = Model(
     name          = "meta-llama/Llama-2-7b-chat-hf",
     base_provider = 'meta',
@@ -271,7 +290,12 @@ class ModelUtils:
         'llama2-70b': llama2_70b,
         'codellama-34b-instruct': codellama_34b_instruct,
         'codellama-70b-instruct': codellama_70b_instruct,
-        
+
+        # GigaChat
+        'gigachat'     : gigachat,
+        'gigachat_plus': gigachat_plus,
+        'gigachat_pro' : gigachat_pro,
+
         'mixtral-8x7b': mixtral_8x7b,
         'mistral-7b': mistral_7b,
         'dolphin-mixtral-8x7b': dolphin_mixtral_8x7b,