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Browser Notification Filter

Filter out browser notifications by title or body of the notification. Edit script configuration before use, and backup script before updating.

As of 29. 03. 2019. See the latest version.

// ==UserScript==
// @name         Browser Notification Filter
// @namespace    https://greatest.deepsurf.us/en/users/85671-jcunews
// @version      1.0.2
// @license      GNU AGPLv3
// @author       jcunews
// @description  Filter out browser notifications by title or body of the notification. Edit script configuration before use, and backup script before updating.
// @match        *://*/*
// @grant        none
// @run-at       document-start
// ==/UserScript==

((orgNotif, whitelistMode, keywordBlacklist, keywordWhitelist) => {

  //===== CONFIGURATION BEGIN =====

  //If whitelistMode is false, keywords is a list of blacklisted words. i.e. block only if matched
  //If whitelistMode is true, keywords is a list of whitelisted words. i.e. allow only if matched
  whitelistMode = false;

  keywordsTitle = /badtitle|badcategory/i;
  keywordsBody  = /unwanted|badword/i;

  //===== CONFIGURATION END =====

  function dummy(){}
  window.fakeNotif = function(title, opts) {
    this.title = title;
    if (opts) Object.keys(opts).forEach(function(k) {
      this[k] = opts[k];
    }, this);
    if (!this.timestamp) this.timestamp = (new Date()).getTime();
  };
  fakeNotif.prototype.close = dummy;
  fakeNotif.prototype.addEventListener = dummy;
  fakeNotif.prototype.removeEventListener = dummy;
  orgNotif = Notification;
  Notification = function(title, opts) {
    var matched;
    if (opts) {
      matched = keywordsTitle.test(title) || keywordsBody.test(opts.body);
    } else matched = keywordsTitle.test(title);
    if ((matched && !whitelistMode) || (!matched && whitelistMode)) return new fakeNotif(title, opts);
    return new orgNotif(title, opts);
  };
  Object.defineProperty(Notification, "permission", {
    get: function() {
      return orgNotif.permission;
    }
  });
  Notification.requestPermission = orgNotif.requestPermission;
})();