98 lines
3.1 KiB
Python
98 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
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"""
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File video_preview.py
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Author charon
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Date 2025/9/6 07:01
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"""
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import os
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import requests
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import urllib.parse
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from uuid import uuid4
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import folder_paths
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class VideoDownloaderNode:
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OUTPUT_DIR = folder_paths.get_input_directory()
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def __init__(self):
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pass
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@classmethod
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def INPUT_TYPES(s):
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"""
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定义节点的输入参数。
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"""
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return {
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"required": {
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"url": ("STRING", {
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"multiline": False,
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"default": "视频链接"
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}),
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"filename": ("STRING", {
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"multiline": False,
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"default": ""
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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 = ("file_path",)
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FUNCTION = "download_video"
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CATEGORY = "不忘科技-自定义节点🚩/utils/下载视频"
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def download_video(self, url, filename=""):
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if not url or not url.strip().startswith('http'):
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print("[VideoDownloader] 无效的URL，跳过下载。")
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return ("",)
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try:
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print(f"[VideoDownloader] 开始从 {url} 下载...")
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response = requests.get(url, stream=True, timeout=10)
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response.raise_for_status()
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if not filename.strip():
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try:
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parsed_url = urllib.parse.urlparse(url)
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filename = os.path.basename(parsed_url.path)
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if not filename: raise ValueError
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except (ValueError, AttributeError):
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content_type = response.headers.get('content-type')
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ext = '.mp4'
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if content_type and '/' in content_type:
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mime_type = content_type.split('/')[1]
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if len(mime_type) < 5: # 简单的扩展名检查
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ext = '.' + mime_type
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filename = f"downloaded_video_{uuid4().hex[:8]}{ext}"
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# 清理文件名，防止路径问题
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safe_filename = "".join(c for c in filename if c.isalnum() or c in ('.', '_', '-')).strip()
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if not safe_filename: safe_filename = f"safe_video_{uuid4().hex[:8]}.mp4"
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file_path = os.path.join(self.OUTPUT_DIR, safe_filename)
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with open(file_path, 'wb') as f:
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for chunk in response.iter_content(chunk_size=8192):
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f.write(chunk)
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print(f"[VideoDownloader] 视频已成功下载到: {file_path}")
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ui_preview = {
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"videos": [{
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"filename": safe_filename,
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"subfolder": "",
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"type": "input"
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}]
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}
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return {"ui": ui_preview, "result": (file_path,)}
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except requests.exceptions.RequestException as e:
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print(f"[VideoDownloader] 下载视频时出错: {e}")
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return ("",)
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# NODE_CLASS_MAPPINGS = {
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# "VideoDownloaderNode": VideoDownloaderNode
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# }
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#
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# NODE_DISPLAY_NAME_MAPPINGS = {
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# "VideoDownloaderNode": "视频下载器 (带预览)"
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# } |