add ollama chat

pkg/provider/modelmgr/apis/ollamachatcmpl.py

@@ -0,0 +1,105 @@
+from __future__ import annotations
+
+import asyncio
+import os
+import typing
+from typing import Union, Mapping, Any, AsyncIterator
+
+import async_lru
+import ollama
+
+from .. import api, entities, errors
+from ... import entities as llm_entities
+from ...tools import entities as tools_entities
+from ....core import app
+from ....utils import image
+
+REQUESTER_NAME: str = "ollama-chat-completions"
+
+
+@api.requester_class(REQUESTER_NAME)
+class OllamaChatCompletions(api.LLMAPIRequester):
+    """Ollama平台 ChatCompletion API请求器"""
+    client: ollama.AsyncClient
+    request_cfg: dict
+
+    def __init__(self, ap: app.Application):
+        super().__init__(ap)
+        self.ap = ap
+        self.request_cfg = self.ap.provider_cfg.data['requester'][REQUESTER_NAME]
+
+    async def initialize(self):
+        os.environ['OLLAMA_HOST'] = self.request_cfg['base-url']
+        self.client = ollama.AsyncClient(
+            timeout=self.request_cfg['timeout']
+        )
+
+    async def _req(self,
+                   args: dict,
+                   ) -> Union[Mapping[str, Any], AsyncIterator[Mapping[str, Any]]]:
+        return await self.client.chat(
+            **args
+        )
+
+    async def _closure(self, req_messages: list[dict], use_model: entities.LLMModelInfo,
+                       user_funcs: list[tools_entities.LLMFunction] = None) -> (
+            llm_entities.Message):
+        args: Any = self.request_cfg['args'].copy()
+        args["model"] = use_model.name if use_model.model_name is None else use_model.model_name
+
+        messages: list[dict] = req_messages.copy()
+        for msg in messages:
+            if 'content' in msg and isinstance(msg["content"], list):
+                text_content: list = []
+                image_urls: list = []
+                for me in msg["content"]:
+                    if me["type"] == "text":
+                        text_content.append(me["text"])
+                    elif me["type"] == "image_url":
+                        image_url = await self.get_base64_str(me["image_url"]['url'])
+                        image_urls.append(image_url)
+                msg["content"] = "\n".join(text_content)
+                msg["images"] = [url.split(',')[1] for url in image_urls]
+        args["messages"] = messages
+
+        resp: Mapping[str, Any] | AsyncIterator[Mapping[str, Any]] = await self._req(args)
+        message: llm_entities.Message = await self._make_msg(resp)
+        return message
+
+    async def _make_msg(
+            self,
+            chat_completions: Union[Mapping[str, Any], AsyncIterator[Mapping[str, Any]]]) -> llm_entities.Message:
+        message: Any = chat_completions.pop('message', None)
+        if message is None:
+            raise ValueError("chat_completions must contain a 'message' field")
+
+        message.update(chat_completions)
+        ret_msg: llm_entities.Message = llm_entities.Message(**message)
+        return ret_msg
+
+    async def call(
+            self,
+            model: entities.LLMModelInfo,
+            messages: typing.List[llm_entities.Message],
+            funcs: typing.List[tools_entities.LLMFunction] = None,
+    ) -> llm_entities.Message:
+        req_messages: list = []
+        for m in messages:
+            msg_dict: dict = m.dict(exclude_none=True)
+            content: Any = msg_dict.get("content")
+            if isinstance(content, list):
+                if all(isinstance(part, dict) and part.get('type') == 'text' for part in content):
+                    msg_dict["content"] = "\n".join(part["text"] for part in content)
+            req_messages.append(msg_dict)
+        try:
+            return await self._closure(req_messages, model)
+        except asyncio.TimeoutError:
+            raise errors.RequesterError('请求超时')
+
+    @async_lru.alru_cache(maxsize=128)
+    async def get_base64_str(
+            self,
+            original_url: str,
+    ) -> str:
+        base64_image: str = await image.qq_image_url_to_base64(original_url)
+        return f"data:image/jpeg;base64,{base64_image}"

pkg/provider/modelmgr/modelmgr.py

@@ -6,7 +6,7 @@ from . import entities
 from ...core import app
 
 from . import token, api
-from .apis import chatcmpl, anthropicmsgs, moonshotchatcmpl, deepseekchatcmpl
+from .apis import chatcmpl, anthropicmsgs, moonshotchatcmpl, deepseekchatcmpl, ollamachatcmpl
 
 FETCH_MODEL_LIST_URL = "https://api.qchatgpt.rockchin.top/api/v2/fetch/model_list"
 

requirements.txt

@@ -15,3 +15,4 @@ websockets
 urllib3
 psutil
 async-lru
+ollama