netease-cloud-music-api-alger
Version:
网易云音乐 NodeJS 版 API Alger
280 lines (250 loc) • 7.51 kB
JavaScript
const CryptoJS = require('crypto-js')
const md5 = require('md5')
const axios = require('axios')
const cryptoMd5 = (str) => {
return CryptoJS.MD5(str).toString()
}
const appSign = (params, appkey, appsec) => {
params.appkey = appkey
const searchParams = new URLSearchParams(params)
searchParams.sort()
return cryptoMd5(searchParams.toString() + appsec)
}
const mixinKeyEncTab = [
46, 47, 18, 2, 53, 8, 23, 32, 15, 50, 10, 31, 58, 3, 45, 35, 27, 43, 5, 49,
33, 9, 42, 19, 29, 28, 14, 39, 12, 38, 41, 13, 37, 48, 7, 16, 24, 55, 40, 61,
26, 17, 0, 1, 60, 51, 30, 4, 22, 25, 54, 21, 56, 59, 6, 63, 57, 62, 11, 36,
20, 34, 44, 52,
]
// 对 imgKey 和 subKey 进行字符顺序打乱编码
const getMixinKey = (orig) =>
mixinKeyEncTab
.map((n) => orig[n])
.join('')
.slice(0, 32)
// 为请求参数进行 wbi 签名
function encWbi(params, img_key, sub_key) {
const mixin_key = getMixinKey(img_key + sub_key),
curr_time = Math.round(Date.now() / 1000),
chr_filter = /[!'()*]/g
Object.assign(params, { wts: curr_time }) // 添加 wts 字段
// 按照 key 重排参数
const query = Object.keys(params)
.sort()
.map((key) => {
// 过滤 value 中的 "!'()*" 字符
const value = params[key].toString().replace(chr_filter, '')
return `${encodeURIComponent(key)}=${encodeURIComponent(value)}`
})
.join('&')
const wbi_sign = md5(query + mixin_key) // 计算 w_rid
return query + '&w_rid=' + wbi_sign
}
// 缓存机制
const cache = {
buvid: '',
wbiKeys: null,
lastWbiKeysFetchTime: 0,
}
// 获取最新的 img_key 和 sub_key
const getWbiKeys = async () => {
// 如果缓存的wbi keys存在且未过期（30分钟内有效），直接返回缓存
const now = Date.now()
if (cache.wbiKeys && now - cache.lastWbiKeysFetchTime < 30 * 60 * 1000) {
return cache.wbiKeys
}
try {
const res = await axios.get(
'https://api.bilibili.com/x/web-interface/nav',
{
headers: {
'User-Agent':
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3',
Referer: 'https://www.bilibili.com/',
},
},
)
const {
wbi_img: { img_url, sub_url },
} = res.data.data
cache.wbiKeys = {
img_key: img_url.slice(
img_url.lastIndexOf('/') + 1,
img_url.lastIndexOf('.'),
),
sub_key: sub_url.slice(
sub_url.lastIndexOf('/') + 1,
sub_url.lastIndexOf('.'),
),
}
cache.lastWbiKeysFetchTime = now
return cache.wbiKeys
} catch (error) {
console.error('获取WBI Keys失败:', error)
throw error
}
}
async function main() {
const web_keys = await getWbiKeys()
const params = { keyword: '周杰伦' },
img_key = web_keys.img_key,
sub_key = web_keys.sub_key
const params1 = encWbi(
{ keyword: '贫道活腻了', search_type: 'video' },
img_key,
sub_key,
)
// https://api.bilibili.com/x/web-interface/wbi/search/type
try {
// 获取buvid
if (!cache.buvid) {
const buvidRes = await axios.get(
'https://api.bilibili.com/x/web-frontend/getbuvid',
{
headers: {
'User-Agent':
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3',
Referer: 'https://www.bilibili.com/',
},
},
)
cache.buvid = buvidRes.data.data.buvid
}
// 使用缓存的buvid
const res1 = await axios.get(
`https://api.bilibili.com/x/web-interface/wbi/search/type?${params1}`,
{
headers: {
Cookie: `buvid3=${cache.buvid}`,
'User-Agent':
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3',
Referer: 'https://www.bilibili.com/',
},
},
)
console.log(JSON.stringify(res1.data))
} catch (error) {
console.error('请求失败:', error)
}
}
/**
* 通用B站API请求函数
* @param {Object} options - 请求配置
* @param {string} options.url - 请求URL
* @param {Object} options.params - 请求参数
* @param {boolean} options.useWbi - 是否使用WBI签名 (默认: false)
* @param {string} options.method - 请求方法 (默认: GET)
* @param {Object} options.headers - 额外的请求头
* @param {string} options.cookie - 自定义Cookie
* @param {boolean} options.needBuvid - 是否需要获取buvid (默认: true)
* @param {boolean} options.useCachedBuvid - 是否使用缓存的buvid (默认: true)
* @returns {Promise<Object>} 请求结果
*/
async function biliRequest(options) {
const {
url,
params = {},
useWbi = false,
method = 'GET',
headers = {},
cookie = '',
needBuvid = true,
useCachedBuvid = true,
} = options
// 默认请求头
const defaultHeaders = {
'User-Agent':
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3',
Referer: 'https://www.bilibili.com/',
}
// 合并请求头
let requestHeaders = { ...defaultHeaders, ...headers }
// 获取buvid
let buvid = ''
if (needBuvid) {
try {
// 使用缓存的buvid或重新获取
if (useCachedBuvid && cache.buvid) {
buvid = cache.buvid
} else {
const buvidRes = await axios.get(
'https://api.bilibili.com/x/web-frontend/getbuvid',
{
headers: defaultHeaders,
},
)
buvid = buvidRes.data.data.buvid
// 更新缓存
cache.buvid = buvid
}
// 添加buvid到Cookie
if (buvid) {
const cookieValue = cookie
? `${cookie}; buvid3=${buvid}`
: `buvid3=${buvid}`
requestHeaders['Cookie'] = cookieValue
} else if (cookie) {
requestHeaders['Cookie'] = cookie
}
} catch (error) {
console.error('获取buvid失败:', error)
if (cookie) {
requestHeaders['Cookie'] = cookie
}
}
} else if (cookie) {
requestHeaders['Cookie'] = cookie
}
// 构建URL和参数
let requestUrl = url
let queryParams = {}
if (useWbi) {
// 使用WBI签名
try {
const wbiKeys = await getWbiKeys()
const wbiQueryString = encWbi(params, wbiKeys.img_key, wbiKeys.sub_key)
// 将wbi查询字符串转换为对象
const urlSearchParams = new URLSearchParams(wbiQueryString)
for (const [key, value] of urlSearchParams.entries()) {
queryParams[key] = value
}
} catch (error) {
console.error('WBI签名失败:', error)
return { code: -1, message: 'WBI签名失败', error }
}
} else {
// 直接使用传入的参数
queryParams = { ...params }
}
// 发送请求
try {
const response = await axios({
method,
url: requestUrl,
params: queryParams,
headers: requestHeaders,
})
return response.data
} catch (error) {
console.error('请求失败:', error)
return {
code: -1,
message: '请求失败',
error: error.response
? {
status: error.response.status,
statusText: error.response.statusText,
data: error.response.data,
}
: error.message,
}
}
}
module.exports = {
appSign,
getWbiKeys,
main,
biliRequest,
// 导出缓存对象，便于外部操作
cache,
}