227 lines
6.7 KiB
Python
227 lines
6.7 KiB
Python
import numpy as np
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import requests
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import json
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import base64
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import io
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import os
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from PIL import Image
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# 快速解决方案：清除可能导致连接错误的代理环境变量
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# Fast solution: Clear proxy environment variables that might cause connection errors
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# 许多用户在使用 requests 库连接 OpenAI API 时会遇到 ProxyError
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# 这是因为 Python 环境可能读取了不正确的系统代理设置
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# Many users encounter ProxyError when connecting to OpenAI API with requests
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# This is because the Python environment might read incorrect system proxy settings
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os.environ['HTTP_PROXY'] = ''
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os.environ['HTTPS_PROXY'] = ''
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os.environ['http_proxy'] = ''
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os.environ['https_proxy'] = ''
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class OpenAINode:
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"""
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OpenAI API 节点：
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支持连接 OpenAI 及其兼容 API（如 DeepSeek, Moonshot 等），
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支持文本生成和多模态图像理解。
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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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"api_url": ("STRING", {
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"default": "https://api.openai.com/v1/chat/completions",
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"multiline": False
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}),
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"api_key": ("STRING", {
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"default": "",
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"multiline": False
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}),
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"model": ("STRING", {
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"default": "gpt-4o",
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"multiline": False
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}),
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"system_prompt": ("STRING", {
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"default": "You are a helpful assistant.",
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"multiline": True
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}),
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"user_prompt": ("STRING", {
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"default": "",
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"multiline": True
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}),
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"seed": ("INT", {
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"default": 0,
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"min": 0,
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"max": 0xffffffffffffffff
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}),
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},
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"optional": {
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"image_1": ("IMAGE",),
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"image_2": ("IMAGE",),
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"image_3": ("IMAGE",),
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"image_4": ("IMAGE",),
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"image_5": ("IMAGE",),
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"image_6": ("IMAGE",),
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"temperature": ("FLOAT", {
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"default": 0.3,
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"min": 0.0,
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"max": 2.0,
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"step": 0.1
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}),
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"max_tokens": ("INT", {
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"default": 500,
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"min": 1,
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"max": 8192
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}),
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"detail": (["low", "high", "auto"], {
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"default": "auto"
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}),
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"image_max_size": ("INT", {
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"default": 1024,
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"min": 256,
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"max": 4096,
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"step": 64
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}),
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"proxy_url": ("STRING", {
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"default": "",
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"multiline": False,
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"placeholder": "e.g., http://127.0.0.1:7890"
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}),
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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_content"
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CATEGORY = "Rui-Node🐶/AI模型🤖"
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def _encode_image_tensor(self, img_tensor, image_max_size):
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img_np = img_tensor.cpu().numpy()
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img_np = np.clip(img_np, 0, 1)
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img_pil = Image.fromarray((img_np * 255).astype(np.uint8), 'RGB')
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width, height = img_pil.size
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if max(width, height) > image_max_size:
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ratio = image_max_size / max(width, height)
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img_pil = img_pil.resize(
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(max(1, int(width * ratio)), max(1, int(height * ratio))),
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Image.LANCZOS
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)
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buffered = io.BytesIO()
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img_pil.save(buffered, format="JPEG", quality=85)
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return base64.b64encode(buffered.getvalue()).decode('utf-8')
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def generate_content(
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self,
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api_url,
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api_key,
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model,
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system_prompt,
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user_prompt,
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seed,
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image_1=None,
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image_2=None,
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image_3=None,
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image_4=None,
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image_5=None,
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image_6=None,
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temperature=0.3,
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max_tokens=500,
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detail="auto",
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image_max_size=1024,
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proxy_url=""
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):
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"""
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调用 OpenAI API 生成内容
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"""
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all_images = [
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img for img in [
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image_1,
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image_2,
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image_3,
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image_4,
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image_5,
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image_6,
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] if img is not None
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]
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if not all_images:
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return (user_prompt if user_prompt.strip() else "（未提供图片和描述）",)
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messages = [
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{"role": "system", "content": system_prompt}
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]
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user_content = []
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if user_prompt:
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user_content.append({
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"type": "text",
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"text": user_prompt
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})
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for image in all_images:
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img_tensor = image[0]
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img_base64 = self._encode_image_tensor(img_tensor, image_max_size)
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user_content.append({
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"type": "image_url",
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"image_url": {
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"url": f"data:image/jpeg;base64,{img_base64}",
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"detail": detail
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}
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})
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if not user_content:
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user_content.append({
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"type": "text",
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"text": " "
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})
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messages.append({
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"role": "user",
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"content": user_content
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})
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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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payload = {
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"model": model,
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"messages": messages,
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"seed": seed,
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"temperature": temperature,
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"max_tokens": max_tokens,
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}
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proxies = None
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if proxy_url and proxy_url.strip():
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proxies = {
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"http": proxy_url,
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"https": proxy_url
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}
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try:
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response = requests.post(api_url, headers=headers, json=payload, proxies=proxies, timeout=60)
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response.raise_for_status()
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result = response.json()
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if "choices" in result and len(result["choices"]) > 0:
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content = result["choices"][0]["message"]["content"]
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return (content,)
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else:
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return (f"Error: API response format unexpected. Response: {json.dumps(result)}",)
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except Exception as e:
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return (f"Error calling OpenAI API: {str(e)}",)
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# 节点映射字典
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NODE_CLASS_MAPPINGS = {
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"OpenAIAPINode": OpenAINode
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}
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# 节点显示名称映射
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NODE_DISPLAY_NAME_MAPPINGS = {
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"OpenAIAPINode": "OpenAI API 连接 / OpenAI API Connector"
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}
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