Unable to run the javascript that using CryptoJS library in JAVA

Question

I'm trying to run the JS function in Java code and the JS function is not executing since it had some third party library that needs to be load.

JsFunction.js

load('crypto-js-3.1.9/crypto-js.js');

var encrypterId = function(name) {

    var context_data = {"referralId": name};

    var secret = CryptoJS.enc.Utf8.parse(JSON.stringify(context_data))

    var encoded_referral_id = CryptoJS.enc.Base64.stringify(secret);

    return encoded_referral_id;
}

JavaCode:

public static void runDisplay() {
        ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
        try {
            engine.eval(new FileReader("./resources/JsFunction.js"));
            Invocable invocable = (Invocable) engine;
            Object result;
            result = invocable.invokeFunction("encrypterId", "827AE1001sdsj213jasu721kkao@1sa");
            System.out.println(result);
        } catch (FileNotFoundException | NoSuchMethodException | ScriptException e) {
            e.printStackTrace();
        }
    }

Exception:

javax.script.ScriptException: TypeError: Cannot load script from crypto-js-3.1.9/crypto-js.js in <eval> at line number 1
    at jdk.scripting.nashorn/jdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:469)
    at jdk.scripting.nashorn/jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:453)
    at jdk.scripting.nashorn/jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:405)
    at jdk.scripting.nashorn/jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:401)
    at jdk.scripting.nashorn/jdk.nashorn.api.scripting.NashornScriptEngine.eval(NashornScriptEngine.java:149)

Can someone help me to run this JS and return the value ? else is it possible to write the equivalent code in Java?

Answer 1

I think you can do it this way:

Remove the 'load' line from JsFunction.js

In your JavaCode, in the line immediately before engine.eval(new FileReader("./resources/JsFunction.js")); just insert a line engine.eval(new FileReader("./resources/crypto-js-3.1.9/crypto-js.js"));

I believe that puts the contents of the crypto-js.js file into scope in the ScriptEngine, and the subsequent JsFunction.js call should work.

I did something similar with much simpler JS files as a test case.