feat: 为必应和claude2提供读取文件能力支持

utils/bilibili/wbi.js

@@ -0,0 +1,71 @@
+import md5 from 'md5'
+import fetch from 'node-fetch'
+
+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
+function getMixinKey (orig) {
+  let temp = ''
+  mixinKeyEncTab.forEach((n) => {
+    temp += orig[n]
+  })
+  return temp.slice(0, 32)
+}
+
+// 为请求参数进行 wbi 签名
+function encWbi (params, imgKey, subKey) {
+  const mixinKey = getMixinKey(imgKey + subKey)
+  const currTime = Math.round(Date.now() / 1000)
+  const chrFilter = /[!'()*]/g
+  let query = []
+  Object.assign(params, { wts: currTime }) // 添加 wts 字段
+  // 按照 key 重排参数
+  Object.keys(params).sort().forEach((key) => {
+    query.push(
+        `${encodeURIComponent(key)}=${encodeURIComponent(
+            // 过滤 value 中的 "!'()*" 字符
+            params[key].toString().replace(chrFilter, '')
+        )}`
+    )
+  })
+  query = query.join('&')
+  const wbiSign = md5(query + mixinKey) // 计算 w_rid
+  return query + '&w_rid=' + wbiSign
+}
+
+// 获取最新的 img_key 和 sub_key
+async function getWbiKeys () {
+  const resp = await fetch('https://api.bilibili.com/x/web-interface/nav')
+  const jsonContent = resp.data
+  const imgUrl = jsonContent.data.wbi_img.img_url
+  const subUrl = jsonContent.data.wbi_img.sub_url
+
+  return {
+    img_key: imgUrl.slice(
+      imgUrl.lastIndexOf('/') + 1,
+      imgUrl.lastIndexOf('.')
+    ),
+    sub_key: subUrl.slice(
+      subUrl.lastIndexOf('/') + 1,
+      subUrl.lastIndexOf('.')
+    )
+  }
+}
+
+// getWbiKeys().then((wbi_keys) => {
+//   const query = encWbi(
+//     {
+//       foo: '114',
+//       bar: '514',
+//       baz: 1919810
+//     },
+//     wbi_keys.img_key,
+//     wbi_keys.sub_key
+//   )
+//   console.log(query)
+// })