// https://github.com/Binaryify/NeteaseCloudMusicApi/blob/master/util/crypto.js import { createCipheriv, publicEncrypt, constants, randomBytes } from 'crypto' const iv = Buffer.from('0102030405060708') const presetKey = Buffer.from('0CoJUm6Qyw8W8jud') const linuxapiKey = Buffer.from('rFgB&h#%2?^eDg:Q') const base62 = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789' const publicKey = '-----BEGIN PUBLIC KEY-----\nMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDgtQn2JZ34ZC28NWYpAUd98iZ37BUrX/aKzmFbt7clFSs6sXqHauqKWqdtLkF2KexO40H1YTX8z2lSgBBOAxLsvaklV8k4cBFK9snQXE9/DDaFt6Rr7iVZMldczhC0JNgTz+SHXT6CBHuX3e9SdB1Ua44oncaTWz7OBGLbCiK45wIDAQAB\n-----END PUBLIC KEY-----' const aesEncrypt = (buffer, mode, key, iv) => { const cipher = createCipheriv('aes-128-' + mode, key, iv) return Buffer.concat([cipher.update(buffer), cipher.final()]) } const rsaEncrypt = (buffer, key) => { buffer = Buffer.concat([Buffer.alloc(128 - buffer.length), buffer]) return publicEncrypt({ key: key, padding: constants.RSA_NO_PADDING }, buffer) } export const weapi = object => { const text = JSON.stringify(object) const secretKey = randomBytes(16).map(n => (base62.charAt(n % 62).charCodeAt())) return { params: aesEncrypt(Buffer.from(aesEncrypt(Buffer.from(text), 'cbc', presetKey, iv).toString('base64')), 'cbc', secretKey, iv).toString('base64'), encSecKey: rsaEncrypt(secretKey.reverse(), publicKey).toString('hex'), } } export const linuxapi = object => { const text = JSON.stringify(object) return { eparams: aesEncrypt(Buffer.from(text), 'ecb', linuxapiKey, '').toString('hex').toUpperCase(), } }