VSIX download button

A simple user script to show vsix download button from vs-code extension marketplace. It will allow to download a file with .vsix

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

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

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         VSIX download button
// @namespace    http://tampermonkey.net/
// @version      2025-02-05
// @description  A simple user script to show vsix download button from vs-code extension marketplace. It will allow to download a file with .vsix
// @author       dnh2025
// @icon         https://www.google.com/s2/favicons?sz=64&domain=githubusercontent.com
// @match        https://marketplace.visualstudio.com/*
// @grant        none
// @sources      https://github.com/mjmirza/Download-VSIX-From-Visual-Studio-Market-Place/blob/main/downloadVSIX-V2.js
// @license      MIT
// ==/UserScript==

(function () {
    'use strict';
    /***
    // First Script: Extracts extension data and creates a download button
    ***/
    // Object to store extension data (version, publisher, identifier)
    const extensionData = {
        version: "",
        publisher: "",
        identifier: "",
        // Function to get the download URL for the VSIX file
        getDownloadUrl: function () {
            return `https://${this.identifier.split(".")[0]}.gallery.vsassets.io/_apis/public/gallery/publisher/${this.identifier.split(".")[0]}/extension/${this.identifier.split(".")[1]}/${this.version}/assetbyname/Microsoft.VisualStudio.Services.VSIXPackage`;
        },
        // Function to get the filename for the downloaded VSIX file
        getFileName: function () {
            return `${this.identifier}_${this.version}.vsix`;
        },
        // Function to create the download button element
        getDownloadButton: function () {
            const button = document.createElement("a");
            button.className = 'vsix-download-button';
            button.innerHTML = "Download VSIX";
            button.style.fontFamily = "wf_segoe-ui,Helvetica Neue,Helvetica,Arial,Verdana";
            button.style.display = "inline-block";
            button.style.padding = "10px 20px"; // Increased padding for a bigger button
            button.style.background = "darkgreen";
            button.style.color = "white";
            button.style.fontWeight = "bold";
            button.style.fontSize = "16px"; // Increased font size
            button.style.margin = "2px 5px";
            button.style.textDecoration = "none"; // Remove default link underline

            // Store the download URL and filename in data attributes
            button.setAttribute("data-download-url", this.getDownloadUrl());
            button.setAttribute("data-download-filename", this.getFileName());

            // Event handler for when the button is clicked
            button.onclick = function (event) {
                
                const downloadUrl = event.target.getAttribute("data-download-url");
                const downloadFilename = event.target.getAttribute("data-download-filename");

                /**
                 * This will not correct filename on chrome (edge)
                 */
                // // Create a temporary link element
                // const link = document.createElement("a");
                // link.href = downloadUrl;
                // link.download = downloadFilename;

                // // Trigger the download
                // link.click();



                //force filename with xhr blob
                window.URL = window.URL || window.webkitURL;

                let xhr = new XMLHttpRequest(),
                    a = document.createElement('a'), file;

                xhr.open('GET', downloadUrl, true);
                xhr.responseType = 'blob';
                xhr.onload = function () {
                    file = new Blob([xhr.response], { type: 'application/octet-stream' });
                    a.href = window.URL.createObjectURL(file);
                    a.download = downloadFilename;  // Set to whatever file name you want
                    // Now just click the link you created
                    // Note that you may have to append the a element to the body somewhere
                    // for this to work in Firefox
                    a.click();
                };
                xhr.send();
            };

            return button;
        }
    };

    const start = async () => {
        // Map to associate metadata table headers with extension data keys
        const metadataMap = {
            version: "version",
            publisher: "publisher",
            "unique-identifier": "identifier"
        };

        // Select all rows in the metadata table
        let metadataValues = document.querySelectorAll(".ux-table-metadata tr td[role='definition']");
        if (metadataValues.length === 0) { setTimeout(start, 500); return; }

        // Iterate through each row to extract extension data
        for (let i = 0; i < metadataValues.length; i++) {
            const cell = metadataValues[i];
            if (cell.getAttribute("aria-labelledby")) {
                const key = cell.getAttribute("aria-labelledby").trim();
                const value = cell.innerText.trim();
                if (metadataMap.hasOwnProperty(key)) {
                    extensionData[metadataMap[key]] = value;
                }
            }
        }

        // Find the element with the class ".ux-oneclick-install-button-container"
        const oneclickInstallButtonContainer = document.querySelector(".ux-oneclick-install-button-container");
        if (oneclickInstallButtonContainer) {
            // Append the download button to the parent element
            oneclickInstallButtonContainer.appendChild(extensionData.getDownloadButton());

            //có thể sẽ bị block bởi ads-blocker
            //thêm 1 setTimeout kiểm tra 1 lần sau 1s
            const checkLast = () => {
                if (!document.querySelector('.vsix-download-button')) {
                    setTimeout(checkLast, 1000);
                    document.querySelector(".ux-oneclick-install-button-container")?.appendChild(extensionData.getDownloadButton());
                };
            }
            setTimeout(checkLast, 1000);

        } else {
            console.error("Element with class 'ux-oneclick-install-button-container' not found.");
        }
    }
    start();
})();