975 lines
24 KiB
JavaScript
Executable File
975 lines
24 KiB
JavaScript
Executable File
'use strict';
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// Load modules
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const Crypto = require('crypto');
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const Path = require('path');
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const Util = require('util');
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const Escape = require('./escape');
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// Declare internals
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const internals = {};
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// Clone object or array
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exports.clone = function (obj, seen) {
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if (typeof obj !== 'object' ||
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obj === null) {
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return obj;
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}
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seen = seen || new Map();
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const lookup = seen.get(obj);
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if (lookup) {
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return lookup;
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}
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let newObj;
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let cloneDeep = false;
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if (!Array.isArray(obj)) {
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if (Buffer.isBuffer(obj)) {
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newObj = new Buffer(obj);
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}
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else if (obj instanceof Date) {
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newObj = new Date(obj.getTime());
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}
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else if (obj instanceof RegExp) {
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newObj = new RegExp(obj);
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}
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else {
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const proto = Object.getPrototypeOf(obj);
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if (proto &&
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proto.isImmutable) {
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newObj = obj;
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}
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else {
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newObj = Object.create(proto);
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cloneDeep = true;
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}
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}
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}
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else {
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newObj = [];
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cloneDeep = true;
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}
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seen.set(obj, newObj);
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if (cloneDeep) {
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const keys = Object.getOwnPropertyNames(obj);
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for (let i = 0; i < keys.length; ++i) {
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const key = keys[i];
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const descriptor = Object.getOwnPropertyDescriptor(obj, key);
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if (descriptor &&
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(descriptor.get ||
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descriptor.set)) {
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Object.defineProperty(newObj, key, descriptor);
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}
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else {
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newObj[key] = exports.clone(obj[key], seen);
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}
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}
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}
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return newObj;
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};
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// Merge all the properties of source into target, source wins in conflict, and by default null and undefined from source are applied
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/*eslint-disable */
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exports.merge = function (target, source, isNullOverride /* = true */, isMergeArrays /* = true */) {
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/*eslint-enable */
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exports.assert(target && typeof target === 'object', 'Invalid target value: must be an object');
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exports.assert(source === null || source === undefined || typeof source === 'object', 'Invalid source value: must be null, undefined, or an object');
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if (!source) {
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return target;
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}
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if (Array.isArray(source)) {
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exports.assert(Array.isArray(target), 'Cannot merge array onto an object');
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if (isMergeArrays === false) { // isMergeArrays defaults to true
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target.length = 0; // Must not change target assignment
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}
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for (let i = 0; i < source.length; ++i) {
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target.push(exports.clone(source[i]));
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}
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return target;
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}
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const keys = Object.keys(source);
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for (let i = 0; i < keys.length; ++i) {
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const key = keys[i];
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const value = source[key];
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if (value &&
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typeof value === 'object') {
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if (!target[key] ||
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typeof target[key] !== 'object' ||
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(Array.isArray(target[key]) !== Array.isArray(value)) ||
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value instanceof Date ||
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Buffer.isBuffer(value) ||
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value instanceof RegExp) {
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target[key] = exports.clone(value);
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}
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else {
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exports.merge(target[key], value, isNullOverride, isMergeArrays);
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}
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}
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else {
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if (value !== null &&
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value !== undefined) { // Explicit to preserve empty strings
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target[key] = value;
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}
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else if (isNullOverride !== false) { // Defaults to true
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target[key] = value;
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}
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}
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}
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return target;
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};
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// Apply options to a copy of the defaults
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exports.applyToDefaults = function (defaults, options, isNullOverride) {
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exports.assert(defaults && typeof defaults === 'object', 'Invalid defaults value: must be an object');
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exports.assert(!options || options === true || typeof options === 'object', 'Invalid options value: must be true, falsy or an object');
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if (!options) { // If no options, return null
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return null;
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}
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const copy = exports.clone(defaults);
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if (options === true) { // If options is set to true, use defaults
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return copy;
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}
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return exports.merge(copy, options, isNullOverride === true, false);
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};
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// Clone an object except for the listed keys which are shallow copied
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exports.cloneWithShallow = function (source, keys) {
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if (!source ||
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typeof source !== 'object') {
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return source;
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}
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const storage = internals.store(source, keys); // Move shallow copy items to storage
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const copy = exports.clone(source); // Deep copy the rest
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internals.restore(copy, source, storage); // Shallow copy the stored items and restore
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return copy;
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};
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internals.store = function (source, keys) {
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const storage = {};
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for (let i = 0; i < keys.length; ++i) {
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const key = keys[i];
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const value = exports.reach(source, key);
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if (value !== undefined) {
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storage[key] = value;
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internals.reachSet(source, key, undefined);
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}
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}
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return storage;
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};
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internals.restore = function (copy, source, storage) {
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const keys = Object.keys(storage);
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for (let i = 0; i < keys.length; ++i) {
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const key = keys[i];
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internals.reachSet(copy, key, storage[key]);
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internals.reachSet(source, key, storage[key]);
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}
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};
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internals.reachSet = function (obj, key, value) {
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const path = key.split('.');
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let ref = obj;
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for (let i = 0; i < path.length; ++i) {
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const segment = path[i];
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if (i + 1 === path.length) {
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ref[segment] = value;
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}
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ref = ref[segment];
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}
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};
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// Apply options to defaults except for the listed keys which are shallow copied from option without merging
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exports.applyToDefaultsWithShallow = function (defaults, options, keys) {
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exports.assert(defaults && typeof defaults === 'object', 'Invalid defaults value: must be an object');
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exports.assert(!options || options === true || typeof options === 'object', 'Invalid options value: must be true, falsy or an object');
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exports.assert(keys && Array.isArray(keys), 'Invalid keys');
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if (!options) { // If no options, return null
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return null;
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}
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const copy = exports.cloneWithShallow(defaults, keys);
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if (options === true) { // If options is set to true, use defaults
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return copy;
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}
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const storage = internals.store(options, keys); // Move shallow copy items to storage
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exports.merge(copy, options, false, false); // Deep copy the rest
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internals.restore(copy, options, storage); // Shallow copy the stored items and restore
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return copy;
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};
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// Deep object or array comparison
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exports.deepEqual = function (obj, ref, options, seen) {
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options = options || { prototype: true };
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const type = typeof obj;
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if (type !== typeof ref) {
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return false;
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}
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if (type !== 'object' ||
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obj === null ||
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ref === null) {
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if (obj === ref) { // Copied from Deep-eql, copyright(c) 2013 Jake Luer, jake@alogicalparadox.com, MIT Licensed, https://github.com/chaijs/deep-eql
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return obj !== 0 || 1 / obj === 1 / ref; // -0 / +0
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}
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return obj !== obj && ref !== ref; // NaN
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}
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seen = seen || [];
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if (seen.indexOf(obj) !== -1) {
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return true; // If previous comparison failed, it would have stopped execution
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}
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seen.push(obj);
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if (Array.isArray(obj)) {
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if (!Array.isArray(ref)) {
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return false;
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}
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if (!options.part && obj.length !== ref.length) {
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return false;
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}
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for (let i = 0; i < obj.length; ++i) {
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if (options.part) {
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let found = false;
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for (let j = 0; j < ref.length; ++j) {
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if (exports.deepEqual(obj[i], ref[j], options)) {
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found = true;
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break;
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}
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}
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return found;
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}
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if (!exports.deepEqual(obj[i], ref[i], options)) {
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return false;
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}
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}
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return true;
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}
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if (Buffer.isBuffer(obj)) {
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if (!Buffer.isBuffer(ref)) {
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return false;
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}
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if (obj.length !== ref.length) {
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return false;
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}
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for (let i = 0; i < obj.length; ++i) {
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if (obj[i] !== ref[i]) {
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return false;
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}
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}
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return true;
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}
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if (obj instanceof Date) {
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return (ref instanceof Date && obj.getTime() === ref.getTime());
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}
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if (obj instanceof RegExp) {
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return (ref instanceof RegExp && obj.toString() === ref.toString());
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}
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if (options.prototype) {
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if (Object.getPrototypeOf(obj) !== Object.getPrototypeOf(ref)) {
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return false;
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}
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}
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const keys = Object.getOwnPropertyNames(obj);
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if (!options.part && keys.length !== Object.getOwnPropertyNames(ref).length) {
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return false;
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}
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for (let i = 0; i < keys.length; ++i) {
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const key = keys[i];
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const descriptor = Object.getOwnPropertyDescriptor(obj, key);
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if (descriptor.get) {
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if (!exports.deepEqual(descriptor, Object.getOwnPropertyDescriptor(ref, key), options, seen)) {
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return false;
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}
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}
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else if (!exports.deepEqual(obj[key], ref[key], options, seen)) {
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return false;
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}
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}
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return true;
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};
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// Remove duplicate items from array
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exports.unique = (array, key) => {
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let result;
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if (key) {
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result = [];
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const index = new Set();
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array.forEach((item) => {
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const identifier = item[key];
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if (!index.has(identifier)) {
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index.add(identifier);
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result.push(item);
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}
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});
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}
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else {
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result = Array.from(new Set(array));
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}
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return result;
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};
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// Convert array into object
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exports.mapToObject = function (array, key) {
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if (!array) {
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return null;
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}
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const obj = {};
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for (let i = 0; i < array.length; ++i) {
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if (key) {
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if (array[i][key]) {
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obj[array[i][key]] = true;
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}
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}
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else {
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obj[array[i]] = true;
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}
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}
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return obj;
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};
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// Find the common unique items in two arrays
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exports.intersect = function (array1, array2, justFirst) {
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if (!array1 || !array2) {
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return [];
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}
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const common = [];
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const hash = (Array.isArray(array1) ? exports.mapToObject(array1) : array1);
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const found = {};
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for (let i = 0; i < array2.length; ++i) {
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if (hash[array2[i]] && !found[array2[i]]) {
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if (justFirst) {
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return array2[i];
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}
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common.push(array2[i]);
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found[array2[i]] = true;
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}
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}
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return (justFirst ? null : common);
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};
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// Test if the reference contains the values
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exports.contain = function (ref, values, options) {
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/*
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string -> string(s)
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array -> item(s)
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object -> key(s)
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object -> object (key:value)
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*/
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let valuePairs = null;
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if (typeof ref === 'object' &&
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typeof values === 'object' &&
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!Array.isArray(ref) &&
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!Array.isArray(values)) {
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valuePairs = values;
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values = Object.keys(values);
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}
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else {
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values = [].concat(values);
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}
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options = options || {}; // deep, once, only, part
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exports.assert(arguments.length >= 2, 'Insufficient arguments');
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exports.assert(typeof ref === 'string' || typeof ref === 'object', 'Reference must be string or an object');
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exports.assert(values.length, 'Values array cannot be empty');
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let compare;
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let compareFlags;
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if (options.deep) {
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compare = exports.deepEqual;
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const hasOnly = options.hasOwnProperty('only');
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const hasPart = options.hasOwnProperty('part');
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compareFlags = {
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prototype: hasOnly ? options.only : hasPart ? !options.part : false,
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part: hasOnly ? !options.only : hasPart ? options.part : true
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};
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}
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else {
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compare = (a, b) => a === b;
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}
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let misses = false;
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const matches = new Array(values.length);
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for (let i = 0; i < matches.length; ++i) {
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matches[i] = 0;
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}
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if (typeof ref === 'string') {
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let pattern = '(';
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for (let i = 0; i < values.length; ++i) {
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const value = values[i];
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exports.assert(typeof value === 'string', 'Cannot compare string reference to non-string value');
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pattern += (i ? '|' : '') + exports.escapeRegex(value);
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}
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const regex = new RegExp(pattern + ')', 'g');
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const leftovers = ref.replace(regex, ($0, $1) => {
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const index = values.indexOf($1);
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++matches[index];
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return ''; // Remove from string
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});
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misses = !!leftovers;
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}
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else if (Array.isArray(ref)) {
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for (let i = 0; i < ref.length; ++i) {
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let matched = false;
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for (let j = 0; j < values.length && matched === false; ++j) {
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matched = compare(values[j], ref[i], compareFlags) && j;
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}
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if (matched !== false) {
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++matches[matched];
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}
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else {
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misses = true;
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}
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}
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}
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else {
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const keys = Object.getOwnPropertyNames(ref);
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for (let i = 0; i < keys.length; ++i) {
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const key = keys[i];
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const pos = values.indexOf(key);
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if (pos !== -1) {
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if (valuePairs &&
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!compare(valuePairs[key], ref[key], compareFlags)) {
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return false;
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}
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++matches[pos];
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}
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else {
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misses = true;
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}
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}
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}
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let result = false;
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for (let i = 0; i < matches.length; ++i) {
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result = result || !!matches[i];
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if ((options.once && matches[i] > 1) ||
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(!options.part && !matches[i])) {
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return false;
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}
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}
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if (options.only &&
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misses) {
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return false;
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}
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return result;
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};
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// Flatten array
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exports.flatten = function (array, target) {
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const result = target || [];
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for (let i = 0; i < array.length; ++i) {
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if (Array.isArray(array[i])) {
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exports.flatten(array[i], result);
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}
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else {
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result.push(array[i]);
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}
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}
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return result;
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};
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// Convert an object key chain string ('a.b.c') to reference (object[a][b][c])
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exports.reach = function (obj, chain, options) {
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if (chain === false ||
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chain === null ||
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typeof chain === 'undefined') {
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return obj;
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}
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options = options || {};
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if (typeof options === 'string') {
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options = { separator: options };
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}
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const path = chain.split(options.separator || '.');
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let ref = obj;
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for (let i = 0; i < path.length; ++i) {
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let key = path[i];
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if (key[0] === '-' && Array.isArray(ref)) {
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key = key.slice(1, key.length);
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key = ref.length - key;
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}
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if (!ref ||
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!((typeof ref === 'object' || typeof ref === 'function') && key in ref) ||
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(typeof ref !== 'object' && options.functions === false)) { // Only object and function can have properties
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|
|
exports.assert(!options.strict || i + 1 === path.length, 'Missing segment', key, 'in reach path ', chain);
|
|
exports.assert(typeof ref === 'object' || options.functions === true || typeof ref !== 'function', 'Invalid segment', key, 'in reach path ', chain);
|
|
ref = options.default;
|
|
break;
|
|
}
|
|
|
|
ref = ref[key];
|
|
}
|
|
|
|
return ref;
|
|
};
|
|
|
|
|
|
exports.reachTemplate = function (obj, template, options) {
|
|
|
|
return template.replace(/{([^}]+)}/g, ($0, chain) => {
|
|
|
|
const value = exports.reach(obj, chain, options);
|
|
return (value === undefined || value === null ? '' : value);
|
|
});
|
|
};
|
|
|
|
|
|
exports.formatStack = function (stack) {
|
|
|
|
const trace = [];
|
|
for (let i = 0; i < stack.length; ++i) {
|
|
const item = stack[i];
|
|
trace.push([item.getFileName(), item.getLineNumber(), item.getColumnNumber(), item.getFunctionName(), item.isConstructor()]);
|
|
}
|
|
|
|
return trace;
|
|
};
|
|
|
|
|
|
exports.formatTrace = function (trace) {
|
|
|
|
const display = [];
|
|
|
|
for (let i = 0; i < trace.length; ++i) {
|
|
const row = trace[i];
|
|
display.push((row[4] ? 'new ' : '') + row[3] + ' (' + row[0] + ':' + row[1] + ':' + row[2] + ')');
|
|
}
|
|
|
|
return display;
|
|
};
|
|
|
|
|
|
exports.callStack = function (slice) {
|
|
|
|
// http://code.google.com/p/v8/wiki/JavaScriptStackTraceApi
|
|
|
|
const v8 = Error.prepareStackTrace;
|
|
Error.prepareStackTrace = function (_, stack) {
|
|
|
|
return stack;
|
|
};
|
|
|
|
const capture = {};
|
|
Error.captureStackTrace(capture, this); // arguments.callee is not supported in strict mode so we use this and slice the trace of this off the result
|
|
const stack = capture.stack;
|
|
|
|
Error.prepareStackTrace = v8;
|
|
|
|
const trace = exports.formatStack(stack);
|
|
|
|
return trace.slice(1 + slice);
|
|
};
|
|
|
|
|
|
exports.displayStack = function (slice) {
|
|
|
|
const trace = exports.callStack(slice === undefined ? 1 : slice + 1);
|
|
|
|
return exports.formatTrace(trace);
|
|
};
|
|
|
|
|
|
exports.abortThrow = false;
|
|
|
|
|
|
exports.abort = function (message, hideStack) {
|
|
|
|
if (process.env.NODE_ENV === 'test' || exports.abortThrow === true) {
|
|
throw new Error(message || 'Unknown error');
|
|
}
|
|
|
|
let stack = '';
|
|
if (!hideStack) {
|
|
stack = exports.displayStack(1).join('\n\t');
|
|
}
|
|
console.log('ABORT: ' + message + '\n\t' + stack);
|
|
process.exit(1);
|
|
};
|
|
|
|
|
|
exports.assert = function (condition /*, msg1, msg2, msg3 */) {
|
|
|
|
if (condition) {
|
|
return;
|
|
}
|
|
|
|
if (arguments.length === 2 && arguments[1] instanceof Error) {
|
|
throw arguments[1];
|
|
}
|
|
|
|
let msgs = [];
|
|
for (let i = 1; i < arguments.length; ++i) {
|
|
if (arguments[i] !== '') {
|
|
msgs.push(arguments[i]); // Avoids Array.slice arguments leak, allowing for V8 optimizations
|
|
}
|
|
}
|
|
|
|
msgs = msgs.map((msg) => {
|
|
|
|
return typeof msg === 'string' ? msg : msg instanceof Error ? msg.message : exports.stringify(msg);
|
|
});
|
|
|
|
throw new Error(msgs.join(' ') || 'Unknown error');
|
|
};
|
|
|
|
|
|
exports.Timer = function () {
|
|
|
|
this.ts = 0;
|
|
this.reset();
|
|
};
|
|
|
|
|
|
exports.Timer.prototype.reset = function () {
|
|
|
|
this.ts = Date.now();
|
|
};
|
|
|
|
|
|
exports.Timer.prototype.elapsed = function () {
|
|
|
|
return Date.now() - this.ts;
|
|
};
|
|
|
|
|
|
exports.Bench = function () {
|
|
|
|
this.ts = 0;
|
|
this.reset();
|
|
};
|
|
|
|
|
|
exports.Bench.prototype.reset = function () {
|
|
|
|
this.ts = exports.Bench.now();
|
|
};
|
|
|
|
|
|
exports.Bench.prototype.elapsed = function () {
|
|
|
|
return exports.Bench.now() - this.ts;
|
|
};
|
|
|
|
|
|
exports.Bench.now = function () {
|
|
|
|
const ts = process.hrtime();
|
|
return (ts[0] * 1e3) + (ts[1] / 1e6);
|
|
};
|
|
|
|
|
|
// Escape string for Regex construction
|
|
|
|
exports.escapeRegex = function (string) {
|
|
|
|
// Escape ^$.*+-?=!:|\/()[]{},
|
|
return string.replace(/[\^\$\.\*\+\-\?\=\!\:\|\\\/\(\)\[\]\{\}\,]/g, '\\$&');
|
|
};
|
|
|
|
|
|
// Base64url (RFC 4648) encode
|
|
|
|
exports.base64urlEncode = function (value, encoding) {
|
|
|
|
exports.assert(typeof value === 'string' || Buffer.isBuffer(value), 'value must be string or buffer');
|
|
const buf = (Buffer.isBuffer(value) ? value : new Buffer(value, encoding || 'binary'));
|
|
return buf.toString('base64').replace(/\+/g, '-').replace(/\//g, '_').replace(/\=/g, '');
|
|
};
|
|
|
|
|
|
// Base64url (RFC 4648) decode
|
|
|
|
exports.base64urlDecode = function (value, encoding) {
|
|
|
|
if (typeof value !== 'string') {
|
|
|
|
return new Error('Value not a string');
|
|
}
|
|
|
|
if (!/^[\w\-]*$/.test(value)) {
|
|
|
|
return new Error('Invalid character');
|
|
}
|
|
|
|
const buf = new Buffer(value, 'base64');
|
|
return (encoding === 'buffer' ? buf : buf.toString(encoding || 'binary'));
|
|
};
|
|
|
|
|
|
// Escape attribute value for use in HTTP header
|
|
|
|
exports.escapeHeaderAttribute = function (attribute) {
|
|
|
|
// Allowed value characters: !#$%&'()*+,-./:;<=>?@[]^_`{|}~ and space, a-z, A-Z, 0-9, \, "
|
|
|
|
exports.assert(/^[ \w\!#\$%&'\(\)\*\+,\-\.\/\:;<\=>\?@\[\]\^`\{\|\}~\"\\]*$/.test(attribute), 'Bad attribute value (' + attribute + ')');
|
|
|
|
return attribute.replace(/\\/g, '\\\\').replace(/\"/g, '\\"'); // Escape quotes and slash
|
|
};
|
|
|
|
|
|
exports.escapeHtml = function (string) {
|
|
|
|
return Escape.escapeHtml(string);
|
|
};
|
|
|
|
|
|
exports.escapeJavaScript = function (string) {
|
|
|
|
return Escape.escapeJavaScript(string);
|
|
};
|
|
|
|
exports.escapeJson = function (string) {
|
|
|
|
return Escape.escapeJson(string);
|
|
};
|
|
|
|
exports.nextTick = function (callback) {
|
|
|
|
return function () {
|
|
|
|
const args = arguments;
|
|
process.nextTick(() => {
|
|
|
|
callback.apply(null, args);
|
|
});
|
|
};
|
|
};
|
|
|
|
|
|
exports.once = function (method) {
|
|
|
|
if (method._hoekOnce) {
|
|
return method;
|
|
}
|
|
|
|
let once = false;
|
|
const wrapped = function () {
|
|
|
|
if (!once) {
|
|
once = true;
|
|
method.apply(null, arguments);
|
|
}
|
|
};
|
|
|
|
wrapped._hoekOnce = true;
|
|
|
|
return wrapped;
|
|
};
|
|
|
|
|
|
exports.isInteger = Number.isSafeInteger;
|
|
|
|
|
|
exports.ignore = function () { };
|
|
|
|
|
|
exports.inherits = Util.inherits;
|
|
|
|
|
|
exports.format = Util.format;
|
|
|
|
|
|
exports.transform = function (source, transform, options) {
|
|
|
|
exports.assert(source === null || source === undefined || typeof source === 'object' || Array.isArray(source), 'Invalid source object: must be null, undefined, an object, or an array');
|
|
const separator = (typeof options === 'object' && options !== null) ? (options.separator || '.') : '.';
|
|
|
|
if (Array.isArray(source)) {
|
|
const results = [];
|
|
for (let i = 0; i < source.length; ++i) {
|
|
results.push(exports.transform(source[i], transform, options));
|
|
}
|
|
return results;
|
|
}
|
|
|
|
const result = {};
|
|
const keys = Object.keys(transform);
|
|
|
|
for (let i = 0; i < keys.length; ++i) {
|
|
const key = keys[i];
|
|
const path = key.split(separator);
|
|
const sourcePath = transform[key];
|
|
|
|
exports.assert(typeof sourcePath === 'string', 'All mappings must be "." delineated strings');
|
|
|
|
let segment;
|
|
let res = result;
|
|
|
|
while (path.length > 1) {
|
|
segment = path.shift();
|
|
if (!res[segment]) {
|
|
res[segment] = {};
|
|
}
|
|
res = res[segment];
|
|
}
|
|
segment = path.shift();
|
|
res[segment] = exports.reach(source, sourcePath, options);
|
|
}
|
|
|
|
return result;
|
|
};
|
|
|
|
|
|
exports.uniqueFilename = function (path, extension) {
|
|
|
|
if (extension) {
|
|
extension = extension[0] !== '.' ? '.' + extension : extension;
|
|
}
|
|
else {
|
|
extension = '';
|
|
}
|
|
|
|
path = Path.resolve(path);
|
|
const name = [Date.now(), process.pid, Crypto.randomBytes(8).toString('hex')].join('-') + extension;
|
|
return Path.join(path, name);
|
|
};
|
|
|
|
|
|
exports.stringify = function () {
|
|
|
|
try {
|
|
return JSON.stringify.apply(null, arguments);
|
|
}
|
|
catch (err) {
|
|
return '[Cannot display object: ' + err.message + ']';
|
|
}
|
|
};
|
|
|
|
|
|
exports.shallow = function (source) {
|
|
|
|
const target = {};
|
|
const keys = Object.keys(source);
|
|
for (let i = 0; i < keys.length; ++i) {
|
|
const key = keys[i];
|
|
target[key] = source[key];
|
|
}
|
|
|
|
return target;
|
|
};
|