193 lines
8.1 KiB
Python
193 lines
8.1 KiB
Python
import comfy
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import folder_paths
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import nodes
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import aiohttp
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import json
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import asyncio
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from aiohttp import ClientSession, ClientError
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from typing import Optional, List, Dict
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import time # 添加时间模块
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import torch
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class OpenAICompatibleLoader:
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"""
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Custom node for OpenAI compatible API integration
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"""
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"base_url": ("STRING", {"default": "Qwen/通义千问"}),
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"model": ("STRING", {
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"default": "",
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"label": "模型名称",
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"allow_edit": True
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}),
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"api_key": ("STRING", {"default": ""}),
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},
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"optional": {
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"image": ("IMAGE", {"default": None}),
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"system_prompt": ("STRING", {"default": "我是一个可以使用LLM构建实用功能的Toolkit", "multiline": True}),
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"prompt": ("STRING", {"multiline": True}),
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"temperature": ("FLOAT", {"default": 0.7, "min": 0.0, "max": 2.0}),
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"max_tokens": ("INT", {"default": 512, "min": 1, "max": 4096}),
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"enable_memory": ("BOOLEAN", {"default": False, "label": "Enable Memory"}),
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}
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}
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RETURN_TYPES = ("STRING",)
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RETURN_NAMES = ("text",)
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FUNCTION = "generate"
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CATEGORY = "DeepSeek_Toolkit"
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async def async_generate(self, payload: dict, actual_base_url: str, api_key: str):
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try:
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async with ClientSession() as session:
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try:
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async with session.post(
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f"{actual_base_url}/chat/completions",
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headers={
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"Content-Type": "application/json",
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"Authorization": f"Bearer {api_key}"
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},
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json=payload
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) as response:
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response.raise_for_status()
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data = await response.json()
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print(f"[DEBUG] API Response: {data}") # 调试日志
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response_content = data['choices'][0]['message']['content']
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print(f"[DEBUG] Extracted Response Content: {response_content}") # 调试日志
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return [response_content] # 返回值改为列表形式
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except Exception as e:
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print(f"[ERROR] 请求失败: {str(e)}") # 打印错误信息
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raise
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except ClientError as e:
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raise Exception(f"API request failed: {str(e)}")
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def generate(self, base_url: str, api_key: str, prompt: str,
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model: str, temperature: float,
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max_tokens: int, system_prompt: Optional[str] = None, image: Optional[str] = None, enable_memory: bool = False):
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content = [] # 将 content 初始化放在函数的最开始
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print(f"[DEBUG] Image parameter type: {type(image)}, value: {image}")
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if image is not None: # 精简 image 处理逻辑，只保留一个 if image is not None 块
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# 统一处理 Tensor 和 字符串类型的 image 输入
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if isinstance(image, torch.Tensor):
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import base64
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from PIL import Image
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import io
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# 将 Tensor 转换为 PIL 图像
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image = image.squeeze(0).cpu().numpy() # [H, W, C]
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if image.shape[2] == 1: # 灰度图像
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image = image.squeeze(-1)
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image = (image * 255).astype('uint8')
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image = Image.fromarray(image)
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# 将 PIL 图像转换为 Base64 编码
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buffered = io.BytesIO()
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image.save(buffered, format="PNG", quality=95) # 添加质量参数以提高图像清晰度
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img_str = base64.b64encode(buffered.getvalue()).decode("utf-8")
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image = f"data:image/png;base64,{img_str}"
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# 如果 image 是字符串类型，验证其是否符合 Base64 格式
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elif isinstance(image, str):
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import re
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if not re.match(r"^data:image\/[a-zA-Z]+;base64,", image):
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raise ValueError("Invalid Base64 image format")
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# 将 Base64 编码的图像添加到 content 中
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content.append({"type": "image_url", "image_url": {"url": image}})
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if prompt.strip():
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content.append({"type": "text", "text": prompt})
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messages = [] # 初始化 messages 列表
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if system_prompt:
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messages.append({
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"role": "system",
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"content": system_prompt
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})
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if content: # 只有当 content 列表不为空时才添加到 messages
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messages.append({
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"role": "user",
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"content": content
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})
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print(f"[DEBUG] Messages with image content: {json.dumps(messages, indent=2)}") # 添加调试日志
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elif not prompt.strip() and not system_prompt and image is None: # ⭐️ 修改：更精确的判断用户是否提供了有效输入
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raise ValueError("用户输入的 prompt 不能为空")
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# 模型选择逻辑 (保持不变)
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selected_model = model if model else "glm-4" # 默认模型为 glm-4
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print(f"[INFO] 使用模型: {selected_model}")
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# base_url 映射表 (保持不变)
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base_url_mapping = {
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"Qwen/通义千问": "https://dashscope.aliyuncs.com/compatible-mode/v1",
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"DeepSeek/深度求索": "https://api.deepseek.com/v1/",
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"DouBao/豆包": "https://ark.cn-beijing.volces.com/api/v3/",
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"Spark/星火": "https://spark-api-open.xf-yun.com/v1/",
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"GLM/智谱清言": "https://open.bigmodel.cn/api/paas/v4/",
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"Moonshot/月之暗面": "https://api.moonshot.cn/v1",
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"Baichuan/百川": "https://api.baichuan-ai.com/v1/",
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"MiniMax/MiniMax": "https://api.minimax.chat/v1/",
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"StepFun/阶跃星辰": "https://api.stepfun.com/v1/"
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}
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actual_base_url = base_url_mapping.get(base_url.strip(), base_url)
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# 对话历史和 payload 构建 (保持不变)
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if not enable_memory:
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self._conversation_history = []
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if not hasattr(self, "_conversation_history"):
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self._conversation_history = []
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if system_prompt and not any(msg["role"] == "system" for msg in self._conversation_history):
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self._conversation_history.append({"role": "system", "content": system_prompt})
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# 避免重复添加内容
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if not any(msg["role"] == "user" and msg["content"] == content for msg in self._conversation_history):
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self._conversation_history.append({"role": "user", "content": content})
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messages = self._conversation_history # 重新从对话历史中获取 messages
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payload = {
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"model": selected_model,
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"messages": messages,
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"temperature": temperature,
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"max_tokens": max_tokens
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}
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print(f"[DEBUG] Full Payload with Image: {json.dumps(payload, indent=2)}") # 添加调试日志
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print(f"[DEBUG] Full Payload Sent to API: {json.dumps(payload, indent=2)}")
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try:
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time.sleep(1)
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import asyncio
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loop = asyncio.new_event_loop()
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asyncio.set_event_loop(loop)
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try:
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task = loop.create_task(self.async_generate(payload, actual_base_url, api_key))
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return loop.run_until_complete(task)
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except Exception as e:
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print(f"[ERROR] 异步任务失败: {str(e)}")
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raise
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finally:
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if hasattr(loop, 'shutdown_asyncgens'):
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loop.run_until_complete(loop.shutdown_asyncgens())
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loop.close()
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except Exception as e:
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raise Exception(f"请求失败: {str(e)}")
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# 注册节点 (保持不变)
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NODE_CLASS_MAPPINGS = {"OpenAICompatibleLoader": OpenAICompatibleLoader}
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NODE_DISPLAY_NAME_MAPPINGS = {"OpenAICompatibleLoader": "OpenAI Compatible Adapter"}
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WEB_DIRECTORY = "./web"
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__all__ = ['NODE_CLASS_MAPPINGS', 'NODE_DISPLAY_NAME_MAPPINGS']
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