Tag Stripper

Strips a website of everything except a few whitelisted things. Context menu activated

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// ==UserScript==
// @name         Tag Stripper
// @namespace    5b5772ac9a58f2cbcdd4e040c0eb874e1c41acea
// @version      1.0
// @description  Strips a website of everything except a few whitelisted things. Context menu activated
// @author       /u/AyrA_ch
// @match        http://*/*
// @match        https://*/*
// @grant        none
// @run-at       context-menu
// ==/UserScript==

//Version History
// 1.0: Now a context menu script
// 0.9: Initially published version

(function () {
	'use strict';
	//This list contains elements themselves that shouldn't be removed
	//The explanation for autoStrip() will be here if needed.
	var wlTags = [];
	//Tag white-list. There's no technical necessity for a certain order.
	//Everything not in this list will be removed from the document
	var wl = [
		//Required elements
		"html", "body", "head", "title",
		//Generic Elements
		"p", "div", "pre", "hr",
		//Links
		"a",
		//Text formatting
		"code", "b", "strong", "i", "u", "span", "br",
		//Lists
		"ul", "ol", "li", "dd", "dt", "dl",
		//Headings
		"h1", "h2", "h3", "h4", "h5", "h6",
		//Table
		"table", "thead", "tbody", "tfoot", "tr", "td", "th",
		//Forms
		"form", "input", "button", "select", "textarea", "option", "optgroup"
	];
	//Attribute white-list
	//Attributes not in this list will be stripped completely from all whitelisted tags
	var awl = [
		//Generic
		"id", "name", "title", "lang",
		//Form
		"action", "method", "type", "value", "placeholder", "pattern", "rows", "cols",
		//Links
		"href", "target", "rel"
	];
	var stripAll = function () {
		//Gets Everything
		var ele = document.querySelectorAll('*');
		for (var i = 0; i < ele.length; i++) {
			var e = ele[i];
			if (wlTags.indexOf(e) < 0) {
				//Don't bother to remove attributes if the tag is not whitelisted
				//We are going to remove it anyways completely
				if (wl.indexOf(e.tagName.toLowerCase()) < 0) {
					console.debug("Removing Tag", e.tagName);
					e.remove();
				} else {
					var attrs = e.attributes;
					for (var j = 0; j < attrs.length; j++) {
						var attr = attrs[j].name.toLowerCase();
						if (awl.indexOf(attr) < 0) {
							console.debug("Removing Attribute", attr);
							e.removeAttribute(attr);
						}
					}
				}
			}
		}
	};
	stripAll();
})();

/*
LICENSE:
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The full license text can be found here: http://creativecommons.org/licenses/by-nc-sa/4.0/
The link has an easy to understand version of the license and the full license text.

DISCLAIMER:
THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
THE POSSIBILITY OF SUCH DAMAGE.
*/

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