Bulk-delete Dropbox shared links

dropbox_shared_links_cleaner.js

/* 
 * Use-case: you have hundreds of old shared Dropbox links and
 * you want to un-share them.
 *
 * Go to https://www.dropbox.com/share/links and let it load,
 * scroll to the bottom of the list, open browser's dev console
 * (tested in Chrome & Firefox) and paste this file's whole contents
 * into console's input field.
 *
 * Call `getCount()` to check if script detects links correctly.
 * Call `loop(50)` to delete last 50 links from the list.
 * To cancel the loop just run `cancel = true`.
 * If it crashes due to error, just run loop again.
 *
 * Script was confirmed working as of 2023-03-14.
 *
 */

 
// helpers
 
function getElemsWithText(tagName, text) {
    return new Array(...document.getElementsByTagName(tagName))
        .filter(function(el) { return el.textContent == text; });
}

function getElemWithTextPromise(tagName, text) {
    return new Promise(function(resolve, reject) { 
        var elems = getElemsWithText(tagName, text);
        if (elems && elems.length) {
            resolve(elems[elems.length - 1]);  // returning last because "Delete link" matches 8 nested divs, clicking first doesn't work
        }
        else {
            console.error("Elems is", elems);
            reject();
        }
    });
}

function getElemsWithInnerHtml(tagName, textInInnerHtml) {
    return new Array(...document.getElementsByTagName(tagName))
        .filter(function(el) { return el.innerHTML.indexOf(textInInnerHtml) != -1; });
}

function getLastMenuButtonPromise() {
    return new Promise(function(resolve, reject) {
        var tagName = "button";
        var textInInnerHtml
        var elems = getElemsWithInnerHtml("button", "<svg");  // this is supposed to find buttons with three dots "..." icon

        if (elems && elems.length) {
            resolve(elems[elems.length - 1]);  // this assumes that last found button is a menu button
        }
        else {
            console.error("Elems is", elems);
            reject();
        }
    });
}


function getDeleteLinkSpanPromise() {
    return getElemWithTextPromise("div", "Delete link");
}

function getDeleteConfirmationButtonPromise() {
    return getElemWithTextPromise("button", "Delete link");
}

function delayPromise(t) {
   return new Promise(function(resolve) { 
       setTimeout(resolve, t);
   });
}

function click(elem) {
    elem.click();
}

function wait() {
    return delayPromise(110);
}

function deleteFirstLinkPromise() {
    return getLastMenuButtonPromise()
        .then(click)
        .then(wait)
        .then(getDeleteLinkSpanPromise)
        .then(click)
        .then(wait)
        .then(getDeleteConfirmationButtonPromise)
        .then(click);
}


// for use

function getCount() {
    return getElemsWithInnerHtml("button", "<svg").length;
}

var cancel = false;

function loop(times) {
    if (cancel || times == 0) {
        cancel = false;
        console.log("Finished!");
        return;
    }
    
    console.log("Deleting, " + times + " left...");

    deleteFirstLinkPromise().then(
        function() {
            setTimeout(function() { loop(times - 1); }, 700);
        },
        function(err) {
            console.log("Nope");
            console.error(err);
        }
    );
}