feat: add laixiu sign js (#1195)

src/javascript/laixiu.js

@@ -0,0 +1,33 @@
+
+function generateUUID() {
+    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
+        const r = Math.random() * 16 | 0, v = c === 'x' ? r : (r & 0x3 | 0x8);
+        return v.toString(16);
+    });
+}
+
+function calculateSign() {
+    const a = new Date().getTime();
+    const s = generateUUID().replace(/-/g, "");
+    const u = 'kk792f28d6ff1f34ec702c08626d454b39pro';
+
+    const input = "web" + s + a + u;
+
+    const hash = CryptoJS.MD5(input).toString();
+
+    return {
+        timestamp: a,
+        imei: s,
+        requestId: hash,
+        inputString: input
+    };
+}
+
+function sign(cryptoJSPath) {
+    CryptoJS = require(cryptoJSPath);
+    return calculateSign();
+}
+
+module.exports = {
+    sign
+  };