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Agent-Reach/agent_reach/channels/youtube.py
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# -*- coding: utf-8 -*-
"""YouTube — check if yt-dlp is available with JS runtime."""
import shutil
from agent_reach.utils.paths import get_ytdlp_config_path, render_ytdlp_fix_command
from agent_reach.utils.text import read_utf8_text
from .base import Channel
class YouTubeChannel(Channel):
name = "youtube"
description = "YouTube 视频和字幕"
backends = ["yt-dlp"]
tier = 0
def can_handle(self, url: str) -> bool:
from urllib.parse import urlparse
d = urlparse(url).netloc.lower()
return "youtube.com" in d or "youtu.be" in d
def check(self, config=None):
if not shutil.which("yt-dlp"):
return "off", "yt-dlp 未安装。安装:pip install yt-dlp"
# Check JS runtime
has_js = shutil.which("deno") or shutil.which("node")
if not has_js:
return "warn", (
"yt-dlp 已安装但缺少 JS runtimeYouTube 必须)。\n"
" 安装 Node.js 或 deno,然后运行:agent-reach install"
)
# Check yt-dlp config for --js-runtimes
# Deno works out of the box; Node.js requires explicit config
has_deno = shutil.which("deno")
if not has_deno:
ytdlp_config = get_ytdlp_config_path()
has_js_config = False
if ytdlp_config.exists():
has_js_config = "--js-runtimes" in read_utf8_text(ytdlp_config)
if not has_js_config:
return "warn", (
"yt-dlp 已安装但未配置 JS runtime。运行:\n"
f" {render_ytdlp_fix_command()}"
)
return "ok", "可提取视频信息和字幕"