优化rating计算速度

module/migrate-vijos/lib.js

@@ -0,0 +1,23 @@
+
+const { md5, sha1 } = global.Hydro.lib;
+
+global.Hydro.lib['hash.vj2'] = module.exports = {
+    /**
+     * @param {string} password
+     * @param {string} salt
+     * @param {string} hash
+     */
+    check(password, salt, hash, udoc) {
+        return hash === this.hash(password, salt, udoc);
+    },
+    /**
+     * @param {string} password
+     * @param {string} salt
+     */
+    hash(password, salt, udoc) {
+        const { uname, unameLower } = udoc;
+        const pmd5 = md5(password);
+        const mixedSha1 = sha1(md5(unameLower + pmd5) + salt + sha1(pmd5 + salt));
+        return `${Buffer.from(uname).toString('base64')}|${mixedSha1}`;
+    },
+};