58 lines
1.9 KiB
JavaScript
58 lines
1.9 KiB
JavaScript
const { request, DEFAULT_UA } = require('./http');
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/**
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* UC网盘链接检测
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* URL格式: https://drive.uc.cn/s/{shareID}
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* 检测方法: 页面爬取，通过关键词判断有效性
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*/
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async function checkUC(link) {
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const { shareID, error: parseError } = extractShareIDFromURL(link);
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if (parseError) {
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return { valid: false, reason: '链接格式无效: ' + parseError };
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}
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try {
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const url = `https://drive.uc.cn/s/${shareID}`;
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const { statusCode, body } = await request(url, {
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headers: {
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'User-Agent': 'Mozilla/5.0 (Linux; Android 10; SM-G975F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.101 Mobile Safari/537.36',
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},
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});
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if (statusCode !== 200) {
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return { valid: false, reason: `HTTP状态码: ${statusCode}` };
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}
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const pageText = body.toLowerCase();
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const errorKeywords = ['失效', '不存在', '违规', '删除', '已过期', '被取消'];
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for (const keyword of errorKeywords) {
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if (pageText.includes(keyword)) {
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return { valid: false, reason: '链接已失效' };
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}
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}
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const validKeywords = ['文件', '分享'];
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for (const keyword of validKeywords) {
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if (pageText.includes(keyword)) {
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return { valid: true, reason: '' };
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}
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}
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return { valid: false, reason: '无法判断链接有效性' };
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} catch (err) {
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if (err.message === '请求超时') return { valid: true, reason: '' }; // 超时视为有效，避免误判
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return { valid: true, reason: '' }; // 连接错误也视为有效，避免误判
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}
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}
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function extractShareIDFromURL(urlStr) {
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const pattern = /https?:\/\/drive\.uc\.cn\/s\/([a-zA-Z0-9]+)/;
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const match = urlStr.match(pattern);
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if (match && match[1]) {
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return { shareID: match[1], error: null };
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}
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return { shareID: '', error: '无法从URL中提取share_id' };
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}
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module.exports = { checkUC, extractShareIDFromURL }; |