Fetch Intercept Userscript

A JS script that intercepts the fetch prototype and overrides it to intercept POST requests

Verze ze dne 08. 01. 2024. Zobrazit nejnovější verzi.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Fetch Intercept Userscript
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  A JS script that intercepts the fetch prototype and overrides it to intercept POST requests
// @author       You
// @match        https://academy.cs.cmu.edu/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=cmu.edu
// @grant        none
// ==/UserScript==



//add any desired link addresses to block to the list
const blockingRequests = []

var originalFetch = window.fetch;
window.fetch = function(url, options){
    if (url == "https://backend.academy.cs.cmu.edu/api/v0/submission/points/"){
        const optionsBody = JSON.parse(options.body)
        let submissionID = optionsBody.submission_id;
        let fileVersion = optionsBody.file_version;

        /*
        @param {number} submissionID a 4 digit number that is created upon submission(is in link)
        @param {number} points - a 1 digit number that represents the amount of points scored upon submission 
        | (NOTE - be very careful with setting it to high or to negative values - it can break the website/exercises)
        @param {string} score - string that can have 2 possiblities "PASS" or "FAIL"
        @param {arr} fileVersion - an array that contains 2 numbers that represent fileversion (should be kept the same)
        */
        let jsonDefined = {
            "submission_id": submissionID,
            "points": 1, 
            "score": "PASS",
            "file_version": fileVersion
        }
        options.body = JSON.stringify(jsonDefined);
        console.log(`Found submission url: ${url}, ${options.body}`);
     }
    //elif not blocked url  
    if (blockingRequests.some(blockedUrl => url.includes(blockedUrl))){
        console.log("Blocked Request in List:", url);
        return Promise.reject(new Error("Blocked Request."))
    }else{
        return originalFetch.apply(this, arguments)
    }
}