adblock-errorreporting.js

/*
 * This file is part of AdBlock  <https://getadblock.com/>,
 * Copyright (C) 2013-present  Adblock, Inc.
 *
 * AdBlock is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation.
 *
 * AdBlock is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with AdBlock.  If not, see <http://www.gnu.org/licenses/>.
 */

/* For ESLint: List any global identifiers used in this file below */
/* global browser */

import { chromeStorageSetHelper } from './utilities/background/bg-functions';

// Send the file name and line number of any error message. This will help us
// to trace down any frequent errors we can't confirm ourselves.
/* eslint-disable no-restricted-globals */
self.addEventListener('error', (e) => {
  if (!e.filename && !e.lineno && !e.colno && !e.error && !e.message) {
    return;
  }
  let str = `Error: ${
    (e.filename || 'anywhere').replace(browser.runtime.getURL(''), '')
  }:${e.lineno || 'anywhere'
  }:${e.colno || 'anycol'}`;
  if (e.message) {
    str += `: ${e.message}`;
  }
  const src = e.target.src || e.target.href;
  if (src) {
    str += `src: ${src}`;
  }
  if (e.error) {
    let stack = `-${e.error.message || ''
    }-${e.error.stack || ''}`;
    stack = stack.replace(/:/gi, ';').replace(/\n/gi, '');
    // only append the stack info if there isn't any URL info in the stack trace
    if (stack.indexOf('http') === -1) {
      str += stack;
    }
    // don't send large stack traces
    if (str.length > 1024) {
      str = str.substr(0, 1023);
    }
  }
  chromeStorageSetHelper('errorkey', `Date added:${new Date()} ${str}`);
  // eslint-disable-next-line no-console
  console.log(str);
});