💩 尝试获取视频播放链接

src/plugins/Bili/utils/getWrid.ts

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+/**
+ * @file plugins/Bili/utils/getWrid.ts
+ * @description Bili 插件获取 wrid 工具函数
+ * @since Beta v0.4.0
+ */
+
+import md5 from "js-md5";
+
+import getNav from "../request/getNav";
+
+/**
+ * @description 获取 key 值
+ * @since Beta v0.4.0
+ * @param {string} key key 名称
+ * @return {string} key 值
+ */
+function getKeyVal(key: string): string {
+  return key.split("/").pop()?.split(".")[0] ?? "";
+}
+
+/**
+ * @description 获取 mixin_key
+ * @since Beta v0.4.0
+ * @return {Promise<string>} mixin_key
+ */
+async function getMixinKey(): Promise<string> {
+  const nav = await getNav();
+  const key1 = getKeyVal(nav.wbi_img.img_url);
+  const key2 = getKeyVal(nav.wbi_img.sub_url);
+  const key = key1 + key2;
+  const MIXIN_KEY_ENC_TAB = [
+    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,
+  ];
+  const res = [];
+  for (const i of MIXIN_KEY_ENC_TAB) {
+    if (key.length < i) {
+      continue;
+    }
+    res.push(key[i]);
+  }
+  // 截取 res 的前 32 位
+  return res.join("").slice(0, 32);
+}
+
+/**
+ * @description 获取 wrid
+ * @since Beta v0.4.0
+ * @param {Record<string,string|number>} params 请求参数
+ * @param {number} nts 时间戳（秒）
+ * @returns {Promise<string>} wrid
+ */
+async function getWrid(
+  params: Record<string, string | number>,
+  nts?: number,
+): Promise<[number, string]> {
+  const mixin_key = await getMixinKey();
+  let wts: number;
+  if (!nts) {
+    wts = Math.floor(Date.now() / 1000);
+  } else {
+    wts = nts;
+  }
+  const obj: Record<string, unknown> = {
+    ...params,
+    wts,
+  };
+  const keys = Object.keys(obj).sort();
+  let md5Str = "";
+  for (const key of keys) {
+    md5Str += `${key}=${obj[key]}&`;
+  }
+  md5Str = md5Str.slice(0, -1);
+  md5Str += mixin_key;
+  const wrid = md5.md5(md5Str);
+  return [wts, wrid];
+}
+
+export default getWrid;