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diff --git a/data/extensions/jsr@javascriptrestrictor/helpers.js b/data/extensions/jsr@javascriptrestrictor/helpers.js
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-/** \file
- * \brief Simple functions that can be used by the extension
- *
- * \author Copyright (C) 2020 Libor Polcak
- * \author Copyright (C) 2021 Matus Svancar
- * \author Copyright (C) 2022 Marek Salon
- *
- * \license SPDX-License-Identifier: GPL-3.0-or-later
- */
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
-//
-
-function escape(str) {
- var map = {
- '"': '&quot;',
- "'": '&#039;',
- '&': '&amp;',
- '<': '&lt;',
- '>': '&gt;'
- };
- return str.replace(/["'&<>]/g, (c) => map[c]);
-}
-
-/**
- * Get a property of an object, create it if it does not exist
- */
-function get_or_create(parent, child, default_value) {
- let obj = parent[child] || default_value;
- parent[child] = obj;
- return obj;
-}
-
-/**
- * Transform byte to Hex value
- */
-function byteToHex(byte) {
- return ('0' + byte.toString(16)).slice(-2);
-}
-
-/**
- * Generate random 32-bit number.
- */
-function gen_random32() {
- var array = new Uint32Array(1);
- self.crypto.getRandomValues(array);
- return array[0];
-}
-
-/**
- * Generate random 64-bit number.
- */
-function gen_random64() {
- var array = new Uint32Array(2);
- self.crypto.getRandomValues(array);
- return BigInt("" + array[0] + array[1]);
-}
-
-/**
- * Generate random hash - default length is 32 bytes.
- */
-function generateId(len = 32) {
- var arr = new Uint8Array(len / 2);
- self.crypto.getRandomValues(arr);
- return Array.from(arr, byteToHex).join("");
-}
-
-/**
- * Parses given URL and converts it to a string that can be used to obtain JShelter settings for the
- * page. For example, removes "www." at the beginning of the given hostname.
- *
- * www.fit.vutbr.cz -> fit.vutbr.cz
- * merlin.fit.vutbr.cz -> merlin.fit.vutbr.cz
- * example.co.uk -> example.co.uk
- */
-function getEffectiveDomain(url) {
- let u = new URL(url);
- if (u.protocol === "file:") {
- return u.protocol;
- }
- return String(u.hostname).replace(/^www\./,'');
-}
-
-/**
- * Parses given URL and converts to eTLD+1.
- * page.
- *
- * www.fit.vutbr.cz -> vutbr.cz
- * example.co.uk -> example.co.uk
- */
-function getSiteForURL(url) {
- try {
- let u = new URL(url);
- if (u.hostname) {
- return tld.getDomain(u.hostname);
- }
- else if (u.protocol) {
- return u.protocol;
- }
- } catch (e) {
- // intentionally empty
- }
- return "";
-}
-
-/**
- * \brief shifts number bits to pick new number
- * \param v BigInt number to shift
- */
-function lfsr_next(v) {
- return BigInt.asUintN(64, ((v >> 1n) | (((v << 62n) ^ (v << 61n)) & (~(~0n << 63n) << 62n))));
-}
-/**
- * \brief generates pseudorandom string based on domain key
- * \param length Number length of generated string
- * \param charSetEnum Number enum choosing charset
- */
-function randomString(length, charSetEnum, prng) {
- var ret = "";
- var charSets = ["abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_ ", "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+/"];
- var charSet = charSets[charSetEnum];
- for ( var i = 0; i < length; i++ ) {
- ret += charSet.charAt(Math.floor(prng() * charSet.length));
- }
- return ret;
-}
-/** \brief shuffle given array according to domain key
- * \param array input array
- *
- * Fisher–Yates shuffle algorithm - Richard Durstenfeld's version
- */
-function shuffleArray(array) {
- for (let i = array.length - 1; i > 0; i--) {
- const j = Math.floor(prng() * (i + 1));
- [array[i], array[j]] = [array[j], array[i]];
- }
-}
-
-/**
- * \brief Asynchronously sleep for given number of milliseconds
- * \param ms Number of milliseconds to sleep
- */
-async function async_sleep(ms) {
- return new Promise((resolve) => {
- setTimeout(resolve, ms);
- });
-}
-
-
-/**
- * \brief Observable desing patter implementation.
- *
- * All observers notified with each change.
- */
-function Observable() {
- Object.defineProperty(this, "observers", {
- value: [],
- writable: true,
- configurable: true,
- enumerable: false});
-};
-Observable.prototype = {
- /**
- * \brief Notifies all observers
- *
- * \param notification An object passed to each observer.
- */
- update: function(...args) {
- for (o of this.observers) {
- o.notify(...args);
- }
- },
- /**
- * Adds an observer.
- *
- * \param observer An object implementing notify();
- */
- add_observer: function(observer) {
- this.observers.push(observer);
- },
- remove_observer: function(observer) {
- const index = this.observers.indexOf(observer);
- if (index > -1) {
- array.splice(index, 1);
- }
- }
-};
-
-/**
- * Return beginning sentences from a long description
- *
- * \param text The original text
- * \param limit The suggested maximal length of the returned text
- *
- * \return A sentence or more sentences from the begining of the text
- *
- * Do not return information in parentheses. Always return at least one sentense. Return as much
- * sentences as possible upto the LIMIT.
- */
-function create_short_text(text, LIMIT) {
- if (text.length > LIMIT) {
- let remove_parentheses = / \([^)]*\)/;
- text = text.replace(remove_parentheses, "");
- let sentences = text.split(".");
- sentences = sentences.map(function (s) {
- if (s.length === 0) {
- return s;
- }
- return s + ".";
- });
- let done = false;
- text = sentences.reduce(function (acc, current) {
- if (!done) {
- if ((acc.length + current.length) <= LIMIT) {
- return acc + current;
- }
- else {
- done = true;
- }
- }
- return acc;
- });
- }
- return text;
-}
-
-/**
- * Helper function that modifies settings after manual removal of optional permissions.
- *
- * \param permissions Array of removed permissions.
- * \param settings Object of current module settings.
- * \param definition Object of module settings definition.
- */
-function correctSettingsForRemovedPermissions(permissions, settings, definition) {
- for (let [name, value] of Object.entries(settings)) {
- if (definition[name]) {
- let option = definition[name].params[value];
- while (value >= 0) {
- if (!option.permissions || !option.permissions.filter(value => permissions.includes(value)).length) {
- settings[name] = value;
- break;
- }
- value -= 1;
- }
- }
- }
-}
-
-/**
- * The function for reading a locally stored file.
- *
- * \param _path String with a fully-qualified URL. E.g.: moz-extension://2c127fa4-62c7-7e4f-90e5-472b45eecfdc/beasts/frog.dat
- *
- * \returns promise for returning content of the file as a string.
- */
- let readFile = (_path) => {
- return new Promise((resolve, reject) => {
- //Fetching locally stored file in same-origin mode
- fetch(_path, {mode:'same-origin'})
- .then(function(_res) {
- //Return data as a blob
- return _res.blob();
- })
- .then(function(_blob) {
- var reader = new FileReader();
- //Wait until the whole file is read
- reader.addEventListener("loadend", function() {
- resolve(this.result);
- });
- //Read blob data as text
- reader.readAsText(_blob);
- })
- .catch(error => {
- reject(error);
- });
- });
-};
-{
-
- // hide incompatible UI
- if (browser.tabs && self.document) {
- const mv = "executeScript" in browser.tabs ? 2 : 3;
- document.documentElement.classList.add(`mv${mv}`);
- let devmode = false;
- try {
- devmode = !!browser.userScripts;
- } catch (e) {
- }
- document.documentElement.classList.toggle("devmode", devmode);
- }
-
-} \ No newline at end of file
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