Adding javascript function to jMeter using jsr223

Question

I am trying to get a javascript function work with jMeter test plan uing JSR223. It is used to decode a string. I have the below two functions which i need to implement in jmeter:

function AESEncryption(text, passphase, bytessize) {

var key = CryptoJS.enc.Utf8.parse('ABCDEFGHIJKL1234567891234');
var iv = CryptoJS.enc.Utf8.parse('1234567890123456');
var blocksize = bytessize / 2;
var encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Utf8.parse(text), passphase, key,
{
    keySize: bytessize,
    iv: iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.Pkcs7
});
var dta = String(encrypted);
return dta;}


function AESDecryption(text, key, bytessize) {
try {
    //alert(text + ":" + key + ":" + bytessize);
    var e = CryptoJS.AES.decrypt(text, key, bytessize);
    //alert("Ec:" + e);
    return CryptoJS.AES.decrypt(text, key, bytessize).toString(CryptoJS.enc.Utf8);
}
catch (Error) {
    return "";}}

try the answer here stackoverflow.com/a/35607619/2575259

Naveen Kumar R B
– Naveen Kumar R B

2017-01-18 12:49:02 +00:00
Commented Jan 18, 2017 at 12:49 — Naveen Kumar R B
– Naveen Kumar R B, Commented Jan 18, 2017 at 12:49

Dmitri T · Accepted Answer · 2017-01-18 14:20:26Z

3

You can import external JavaScript into JSR223 Sampler using load directive.

Download latest release of crypto-js from https://github.com/brix/crypto-js/releases (I used 3.1.9) and unpack it to JMeter's "bin" folder
Add the next line to the beginning of your JSR223 script:
```
load('crypto-js-3.1.9/crypto-js.js');
```
You should be able to access your JavaScript functions directly in the JSR223 Sampler

Be aware that JavaScript being interpreted via Rhino/Nashorn has serious performance drawbacks therefore if you are planning to call this funciton by many threads it makes more sense to rewrite your functions in Groovy.

answered Jan 18, 2017 at 14:20

Dmitri T

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