Convert common.coffee to JS
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/**
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* Copyright 2013-2018 Zaid Abdulla
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*
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* This file is part of GenieACS.
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*
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* GenieACS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* GenieACS 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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with GenieACS. If not, see <http://www.gnu.org/licenses/>.
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*/
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"use strict";
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const UNDEFINED_TYPE = "[object Undefined]";
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const NULL_TYPE = "[object Null]";
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const BOOLEAN_TYPE = "[object Boolean]";
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const NUMBER_TYPE = "[object Number]";
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const STRING_TYPE = "[object String]";
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const ARRAY_TYPE = "[object Array]";
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const OBJECT_TYPE = "[object Object]";
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const REGEXP_TYPE = "[object RegExp]";
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const DATE_TYPE = "[object Date]";
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const typeOf = (obj) => Object.prototype.toString.call(obj);
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function generateDeviceId(deviceIdStruct) {
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// Escapes everything except alphanumerics and underscore
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function esc(str) {
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return str.replace(/[^A-Za-z0-9_]/g, (chr) => {
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const buf = new Buffer(chr, "utf8");
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let rep = "";
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for (let b of buf)
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rep += "%" + (b.toString(16).toUpperCase());
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return rep;
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});
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}
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// Guaranteeing globally unique id as defined in TR-069
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if (deviceIdStruct["ProductClass"])
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return (esc(deviceIdStruct["OUI"])) + "-" + (esc(deviceIdStruct["ProductClass"])) + "-" + (esc(deviceIdStruct["SerialNumber"]));
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return (esc(deviceIdStruct["OUI"])) + "-" + (esc(deviceIdStruct["SerialNumber"]));
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}
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function parseAlias(pattern, start, res) {
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const aliases = [];
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let i = start;
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while (i < pattern.length && pattern[i] !== "]") {
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const alias = [];
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let j = i = parsePath(pattern, i, alias) + 1;
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while (pattern[j] !== "]" && pattern[j] !== ",") {
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if (pattern[j] === "\"" && i === j) {
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++j;
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while (pattern[j] !== "\"" || pattern[j - 1] === "\\") {
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if (++j >= pattern.length)
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throw new Error("Invalid alias expression");
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}
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}
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if (++j >= pattern.length)
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throw new Error("Invalid alias expression");
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}
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let value = pattern.slice(i, j).trim();
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i = j;
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if (value[0] === "\"") {
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try {
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value = JSON.parse(value);
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} catch (error) {
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throw new Error("Invalid alias expression");
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}
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}
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alias.push(value);
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aliases.push(alias);
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if (pattern[i] === ",")
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++i;
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}
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// Sort to ensure identical expressions have idential string representation
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function srt(a, b) {
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const jMax = Math.min(a.length, b.length);
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for (let j = 0; j < jMax; j += 2) {
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const kMax = Math.min(a[j].length, b[j].length);
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for (let k = 0; k < kMax; ++ k) {
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if (Array.isArray(a[j][k])) {
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if (Array.isArray(b[j][k]))
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return srt(a[j][k], b[j][k]);
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else if (b[j][k] == null)
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return -1;
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else
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return 1;
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} else if (a[j][k] == null) {
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if (b[j][k] == null)
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return 0;
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else
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return 1;
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} else if ((b[j][k] == null) || Array.isArray(b[j][k])) {
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return -1;
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} else if (a[j][k] > b[j][k]) {
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return 1;
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} else if (a[j][k] < b[j][k]) {
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return -1;
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}
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}
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if (a[j].length > b[j].length)
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return -1;
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else if (a[j].length < b[j].length)
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return 1;
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if (a[j + 1] > b[j + 1])
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return -1;
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else if (a[j + 1] < b[j + 1])
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return 1;
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}
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if (a.length > b.length)
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return -1;
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else if (a.length < b.length)
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return 1;
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return 0;
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}
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aliases.sort(srt);
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res.push([].concat.apply([], aliases));
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return i;
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}
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function parsePath(pattern, start, res) {
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const path = [];
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path.wildcard = 0;
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path.alias = 0;
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let i = start || 0;
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// Colon separator is needed for parseAlias
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if (i < pattern.length && pattern[i] !== ":") {
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while (true) {
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if (pattern[i] === "[") {
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path.alias |= 1 << path.length;
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i = parseAlias(pattern, i + 1, path) + 1;
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} else {
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let j = i;
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while (i < pattern.length && pattern[i] !== ":" && pattern[i] !== ".")
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++i;
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const n = pattern.slice(j, i);
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if (n === "*")
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path.wildcard |= 1 << path.length;
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path.push(n);
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}
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if (i >= pattern.length || pattern[i] === ":")
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break;
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else if (pattern[i] !== ".")
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throw new Error("Invalid alias expression");
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++i;
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}
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}
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Object.freeze(path);
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if (res == null)
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return path;
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res.push(path);
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return i;
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}
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function addPathMeta(path) {
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if (path.alias != null && path.wildcard != null)
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return path;
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path.alias = 0;
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path.wildcard = 0;
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for (let [i, p] of path.entries()) {
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if (Array.isArray(p)) {
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path.alias |= 1 << i;
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for (let j = 0; j < p.length; j += 2)
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addPathMeta(p[j]);
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} else if (p === "*") {
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path.wildcard |= 1 << i;
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}
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}
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Object.freeze(path);
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return path;
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}
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// Source: http://stackoverflow.com/a/6969486
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function escapeRegExp(str) {
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return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
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}
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exports.UNDEFINED_TYPE = UNDEFINED_TYPE;
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exports.NULL_TYPE = NULL_TYPE;
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exports.BOOLEAN_TYPE = BOOLEAN_TYPE;
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exports.NUMBER_TYPE = NUMBER_TYPE;
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exports.STRING_TYPE = STRING_TYPE;
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exports.ARRAY_TYPE = ARRAY_TYPE;
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exports.OBJECT_TYPE = OBJECT_TYPE;
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exports.DATE_TYPE = DATE_TYPE;
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exports.REGEXP_TYPE = REGEXP_TYPE;
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exports.typeOf = typeOf;
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exports.generateDeviceId = generateDeviceId;
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exports.parsePath = parsePath;
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exports.addPathMeta = addPathMeta;
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exports.escapeRegExp = escapeRegExp;
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