topic Re: How to implement JS algorithm with JSL? in Discussions

How to implement JS algorithm with JSL?

UersK — Thu, 08 Jun 2023 16:37:58 GMT

There is a website data request to download the need for dynamic verification, web page JS has a specific algorithm.

function getRnd() {
    return parseInt(Math.random() * 10000) + "=" + parseInt(Math.random() * 10000)
}
//Returns a random number


function getRuntime() {
    var c = new Date();
    var b = "";
    var f = c.getFullYear();
    var h = c.getMonth() + 1;
    var g = c.getDate();
    var a = c.getHours();
    var d = c.getMinutes();
    var e = c.getSeconds();
    b = f + "-" + h + "-" + g + " " + a + ":" + d + ":" + e;
    return
//Returns a timestamp

Its request parameter is

[{"ReqId":"1000","Market":"0","Sort":"zj08","CodeList":"","Desc":"1","Page":"1","PageSize":"100","Xgtj":"","Want":"hq00,hq01,zj00,zj01,zj02,zj03,zj04,zj05,zj06,zj07,zj08,zj09,zj10,zj11,zj12,zj13,zjn00,zjn01,zjn02","EXPTOKEN":"35de5f29c393b370e92a99c19ea2bb8f9a5d81e0296dedf6d952531a0982450e","modname":"mod_zjlx"}]

Re: How to implement JS algorithm with JSL?

UersK — Wed, 08 Feb 2023 08:09:28 GMT

The token is dynamic, and the 32 bits in the figure are the real-time timestamp when the data is requested, which is calculated according to the above algorithm

How to use JSL to achieve this algorithm, the final use of JSL can achieve the website data download.

Thanks Experts!

Re: How to implement JS algorithm with JSL?

UersK — Wed, 08 Feb 2023 08:19:54 GMT

b3313cca81a3f56de75d0e252dc3d17d	{~62~33~33~31~33~63~63~61~38~31~61~33~66~35~36~64~65~37~35~64~30~65~32~35~32~64~63~33~64~31~37~64};
b3313cca81a3f56dca5503f02eb3b23f	{~62~33~33~31~33~63~63~61~38~31~61~33~66~35~36~64~63~61~35~35~30~33~66~30~32~65~62~33~62~32~33~66};
54b0ea31266538a5ed4b311f78e45577	{~35~34~62~30~65~61~33~31~32~36~36~35~33~38~61~35~65~64~34~62~33~31~31~66~37~38~65~34~35~35~37~37};
54b0ea31266538a5dc3eb30831ba9a8e	{~35~34~62~30~65~61~33~31~32~36~36~35~33~38~61~35~64~63~33~65~62~33~30~38~33~31~62~61~39~61~38~65};
6f6513e99b16e00bd952531a0982450e	{~36~66~36~35~31~33~65~39~39~62~31~36~65~30~30~62~64~39~35~32~35~33~31~61~30~39~38~32~34~35~30~65};
230e438970e32162d952531a0982450e	{~32~33~30~65~34~33~38~39~37~30~65~33~32~31~36~32~64~39~35~32~35~33~31~61~30~39~38~32~34~35~30~65};
3a37657866190524d952531a0982450e	{~33~61~33~37~36~35~37~38~36~36~31~39~30~35~32~34~64~39~35~32~35~33~31~61~30~39~38~32~34~35~30~65};
762baf39305e1ed6d952531a0982450e	{~37~36~32~62~61~66~33~39~33~30~35~65~31~65~64~36~64~39~35~32~35~33~31~61~30~39~38~32~34~35~30~65};
16f080f9e5d542afd952531a0982450e	{~31~36~66~30~38~30~66~39~65~35~64~35~34~32~61~66~64~39~35~32~35~33~31~61~30~39~38~32~34~35~30~65};
478a2b0371d01b8cd952531a0982450e	{~34~37~38~61~32~62~30~33~37~31~64~30~31~62~38~63~64~39~35~32~35~33~31~61~30~39~38~32~34~35~30~65};

I collected the timestamp and its binary text for several different time request parameters.

I just don't know how to use JSL to do this algorithm.Ask a JMP expert for help.Thanks!

Re: How to implement JS algorithm with JSL?

UersK — Fri, 10 Feb 2023 08:44:07 GMT

I'm trying to analyze it this way

Re: How to implement JS algorithm with JSL?

UersK — Fri, 10 Feb 2023 00:26:40 GMT

Is there a function for JMP?

Thanks Experts!

Re: How to implement JS algorithm with JSL?

Mark_Bailey — Fri, 10 Feb 2023 13:48:28 GMT

You should provide more background information if you expect any help here. So you have an algorithm coded in JavaScript? Have you learned JSL yet? What is the nature of the problem you have encountered so far?

Re: How to implement JS algorithm with JSL?

UersK — Fri, 10 Feb 2023 23:56:58 GMT

Thanks Experts!

Yes, this is an HTTP download problem with JSL, and this algorithm only involves timestamp verification of request parameters.

I JSL manual, can do normal HTTP using JSL download data.

Re: How to implement JS algorithm with JSL?

jthi — Sat, 11 Feb 2023 08:29:55 GMT

JSL does offer wide range of different functions related to datetimes

and then maybe you can use character functions to build rest of your string

and HTTP Request functions to build your query

Re: How to implement JS algorithm with JSL?

UersK — Sat, 11 Feb 2023 09:53:27 GMT

Thank jthi!

Still in the HTTP request time check problem, this parameter must be submitted at the time according to the above JS algorithm to successfully download the data.

My complete download of the JSL code is pictured.

Re: How to implement JS algorithm with JSL?

UersK — Sat, 11 Feb 2023 10:01:15 GMT

fiddler

Different time demands, to change only timestamp this part

Thanks Experts!