Remove anti-adblock
目前為
// ==UserScript==
// @author @shitchell
// @namespace https://github.com/shitchell
// @license wtfpl
// @name adblockblockblock
// @version 0.0.5
// @description Remove anti-adblock
// @match *://*/*
// @exclude-match *://*.google.com/*
// @exclude-match *://*.youtube.com/*
// @grant none
// @run-at document-start
// ==/UserScript==
// This script is under active development. I will update this with more class names
// used by modals I come across used to block the page. Warning: this script MIGHT
// break some pages. It basically searches for any elements which contain a certain
// string in their class names and then follows their parent tree up to see if that
// matching element or any of its parents have a z-index > 50. I might increase that
// z-index if 50 is too low and accidentally removes intentional, desired elements,
// and I might have to implement more sophisticated logic than the above if it ends
// up destroying many elements we'd rather keep. Please drop a comment with the link
// to any page this breaks (although hopefully that number is tiny to nil)!
var DEBUG = false;
var VERIFIED_ELEMENTS = [];
var TRIGGER_ZINDEX = 5000;
var REMOVED_ELEMENTS = 0;
function debug(...message) {
if (DEBUG) {
let timestamp = new Date().toISOString().replace(/T/, ' ').replace(/\..+/, '');
let prefix = `[adblockblockblock] ${timestamp} --`;
console.log(prefix, ...message);
}
}
function removeAdblockblock() {
'use strict';
debug("Running...");
//
/// Search for the following common classes used by modals that block the page
////
let pageBlockerClasses = [
'overlay' // this definitely needs to be updated with more classes........
];
let pageBlockerStyles = [
'z-index'
]
debug("Searching for page blockers...", pageBlockerClasses, pageBlockerStyles);
let blockerCandidateElements = [];
for (const pageBlockerClass of pageBlockerClasses) {
// Find all elements which contain the class name
let candidateElementsContainingClass = document.querySelectorAll(`[class*="${pageBlockerClass}"]`);
candidateElementsContainingClass.forEach(pageBlockerElement => {
// Add the element to the list of page blocker elements
blockerCandidateElements.push(pageBlockerElement);
});
}
for (const pageBlockerStyle of pageBlockerStyles) {
// Find all elements which contain the style
let candidateElementsContainingStyle = document.querySelectorAll(`[style*="${pageBlockerStyle}"]`);
candidateElementsContainingStyle.forEach(pageBlockerElement => {
// Add the element to the list of page blocker elements
blockerCandidateElements.push(pageBlockerElement);
});
}
debug("Found candidate blockers", blockerCandidateElements);
for (let blockerCandidateElement of blockerCandidateElements) {
debug(`Checking element "${blockerCandidateElement.tagName}" with class "${blockerCandidateElement.className}"`, blockerCandidateElement);
// Store the original element so that we can cache/skip it if we've already verified it
const originalBlockerCandidateElement = blockerCandidateElement;
let blockerCandidateVerified = true;
// Check if we've already verified this element
if (VERIFIED_ELEMENTS.includes(originalBlockerCandidateElement)) {
debug(`Element "${blockerCandidateElement.tagName}" with class "${blockerCandidateElement.className}" has already been verified`, blockerCandidateElement);
continue;
}
// Check the z-index and position of the element and its parents
while (blockerCandidateElement) {
if (
blockerCandidateElement.tagName === 'BODY'
|| blockerCandidateElement.tagName === 'HTML') {
// If we get to the top, the element is not blocking the page
break;
}
// Check the z-index and position
let computedStyle = window.getComputedStyle(blockerCandidateElement);
let position = computedStyle.getPropertyValue('position');
let zIndex = computedStyle.getPropertyValue('z-index');
if (
(position === 'fixed' || position === 'absolute' || position === 'sticky')
&& zIndex !== 'auto' && zIndex > TRIGGER_ZINDEX
) {
// If the element has a position and z-index that would block the page, remove it
debug(`Removing element "${blockerCandidateElement.tagName}" with class "${blockerCandidateElement.className}" and z-index "${zIndex}"`, blockerCandidateElement);
blockerCandidateElement.remove();
blockerCandidateVerified = false;
REMOVED_ELEMENTS++;
break;
}
// Move on up the DOM tree
blockerCandidateElement = blockerCandidateElement.parentElement;
}
// Cache the element if it was verified
if (blockerCandidateVerified) {
debug(`Element "${originalBlockerCandidateElement.tagName}" with class "${originalBlockerCandidateElement.className}" has been verified`, originalBlockerCandidateElement);
VERIFIED_ELEMENTS.push(originalBlockerCandidateElement);
}
}
//
/// Double check the html, body, and content elements to ensure content is not hidden
////
// only check if we removed elements to help ensure that overflow isn't
// meant to be hidden on the page for normal functionality
if (REMOVED_ELEMENTS > 0) {
let overflowHiddenElements = document.querySelectorAll('html, body, #content, main, section');
for (const overflowHiddenElement of overflowHiddenElements) {
let computedStyle = window.getComputedStyle(overflowHiddenElement);
let overflow = computedStyle.getPropertyValue('overflow');
debug(`Overflow of element "${overflowHiddenElement.tagName}" with class "${overflowHiddenElement.className}" is "${overflow}"`, overflowHiddenElement);
if (overflow.indexOf('hidden') !== -1) {
debug("Setting overflow to 'initial !important'...", overflowHiddenElement);
overflowHiddenElement.style.setProperty('overflow', 'initial', 'important');
}
}
}
debug("Done");
}
(function() {
'use strict';
// Remove the adblockblock
removeAdblockblock();
// Remove the adblockblock if the page changes
let observer = new MutationObserver(removeAdblockblock);
observer.observe(document, { childList: true, subtree: true, attributes: true, attributeFilter: ['class', 'style'] });
})();