mirror of
https://github.com/gorhill/uBlock.git
synced 2024-11-17 16:02:33 +01:00
90 lines
2.5 KiB
JavaScript
90 lines
2.5 KiB
JavaScript
/*******************************************************************************
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uBlock Origin - a comprehensive, efficient content blocker
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Copyright (C) 2017-present Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/
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'use strict';
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/* global HTMLDocument, XMLDocument */
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// For background page, auxiliary pages, and content scripts.
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/******************************************************************************/
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if (
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self.browser instanceof Object &&
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self.browser instanceof Element === false
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) {
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self.chrome = self.browser;
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} else {
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self.browser = self.chrome;
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}
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/******************************************************************************/
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// https://bugzilla.mozilla.org/show_bug.cgi?id=1408996#c9
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var vAPI = self.vAPI; // jshint ignore:line
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// https://github.com/chrisaljoudi/uBlock/issues/464
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// https://github.com/chrisaljoudi/uBlock/issues/1528
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// A XMLDocument can be a valid HTML document.
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// https://github.com/gorhill/uBlock/issues/1124
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// Looks like `contentType` is on track to be standardized:
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// https://dom.spec.whatwg.org/#concept-document-content-type
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// https://forums.lanik.us/viewtopic.php?f=64&t=31522
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// Skip text/plain documents.
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if (
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(
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document instanceof HTMLDocument ||
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document instanceof XMLDocument &&
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document.createElement('div') instanceof HTMLDivElement
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) &&
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(
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/^image\/|^text\/plain/.test(document.contentType || '') === false
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) &&
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(
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self.vAPI instanceof Object === false || vAPI.uBO !== true
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)
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) {
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vAPI = self.vAPI = { uBO: true };
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}
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/*******************************************************************************
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DO NOT:
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- Remove the following code
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- Add code beyond the following code
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Reason:
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- https://github.com/gorhill/uBlock/pull/3721
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- uBO never uses the return value from injected content scripts
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**/
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void 0;
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