54 lines
2.4 KiB
TypeScript
54 lines
2.4 KiB
TypeScript
// 喜马拉雅 xm-sign 生成 —— 移植 Ximalaya-Downloader-Next / easy-sign 的 du_web_sdk 签名链
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// 协议：device_info → JSON → URL 编码字节 → zlib(level 6) → AES-128-ECB(PKCS7, KEY) →
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// POST https://hdaa.shuzilm.cn/report?v=1.2.0&e=1&c=1&r=<uuid>（octet-stream）→
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// Base64 响应 → AES-ECB 解密 → JSON 取 cadd/sid → xm-sign = "{cadd}&&{sid}"
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// KEY 为 du_web_sdk _getDeviceKey(0) 的硬编码密钥；每次签名都重新上报（不缓存）。
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// 模板为纯 ASCII（Base64/十六进制字段），latin1 取字节与参考实现的 charCode 语义一致。
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import zlib from 'node:zlib'
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import crypto from 'node:crypto'
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import { httpFetch } from '../request.ts'
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import { DEVICE_INFO } from './deviceInfo.ts'
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const SIGN_KEY = 'm9ZtRrz:qujT8@da'
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const REPORT_URL = 'https://hdaa.shuzilm.cn/report?v=1.2.0&e=1&c=1&r='
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// 与 device_info.ew1.yV2（Chrome 125 模板）保持一致
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export const XM_UA = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36'
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const aesEcb = (data: Buffer, decrypt: boolean) => {
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const key = Buffer.from(SIGN_KEY, 'utf8')
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const cipher = decrypt
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? crypto.createDecipheriv('aes-128-ecb', key, null)
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: crypto.createCipheriv('aes-128-ecb', key, null)
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return Buffer.concat([cipher.update(data), cipher.final()])
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}
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/** 生成 xm-sign（形如 "cadd&&sid"）；每次调用重新上报设备指纹 */
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export const makeXmSign = async(): Promise<string> => {
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const info = { ...DEVICE_INFO, Zf5: Date.now() }
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const compressed = zlib.deflateSync(Buffer.from(JSON.stringify(info), 'latin1'), { level: 6 })
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const payload = aesEcb(compressed, false)
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const { statusCode, body, raw } = await httpFetch(`${REPORT_URL}${crypto.randomUUID()}`, {
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method: 'post',
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headers: {
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'Content-Type': 'application/octet-stream',
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'User-Agent': XM_UA,
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Host: 'hdaa.shuzilm.cn',
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},
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body: payload,
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timeout: 15000,
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}).promise as any
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const respText = raw ? raw.toString('utf8') : String(body ?? '')
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if (statusCode != 200) throw new Error(`xm-sign 上报失败: HTTP ${statusCode}`)
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const decrypted = aesEcb(Buffer.from(respText, 'base64'), true).toString('utf8')
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const obj = JSON.parse(decrypted)
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const cadd = String(obj.cadd || '')
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const sid = String(obj.sid || '')
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if (!cadd || !sid) throw new Error('xm-sign 上报响应缺少 cadd/sid')
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return `${cadd}&&${sid}`
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}
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export default { makeXmSign, XM_UA }
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