115 lines
4.6 KiB
JavaScript
115 lines
4.6 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.deprecate = exports.isObjectLike = exports.isDate = exports.haveBuffer = exports.isMap = exports.isRegExp = exports.isBigUInt64Array = exports.isBigInt64Array = exports.isUint8Array = exports.isAnyArrayBuffer = exports.randomBytes = exports.normalizedFunctionString = void 0;
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var buffer_1 = require("buffer");
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var global_1 = require("../utils/global");
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/**
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* Normalizes our expected stringified form of a function across versions of node
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* @param fn - The function to stringify
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*/
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function normalizedFunctionString(fn) {
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return fn.toString().replace('function(', 'function (');
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}
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exports.normalizedFunctionString = normalizedFunctionString;
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function isReactNative() {
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var g = (0, global_1.getGlobal)();
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return typeof g.navigator === 'object' && g.navigator.product === 'ReactNative';
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}
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var insecureRandomBytes = function insecureRandomBytes(size) {
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var insecureWarning = isReactNative()
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? 'BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.'
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: 'BSON: No cryptographic implementation for random bytes present, falling back to a less secure implementation.';
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console.warn(insecureWarning);
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var result = buffer_1.Buffer.alloc(size);
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for (var i = 0; i < size; ++i)
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result[i] = Math.floor(Math.random() * 256);
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return result;
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};
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var detectRandomBytes = function () {
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if (process.browser) {
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if (typeof window !== 'undefined') {
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// browser crypto implementation(s)
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var target_1 = window.crypto || window.msCrypto; // allow for IE11
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if (target_1 && target_1.getRandomValues) {
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return function (size) { return target_1.getRandomValues(buffer_1.Buffer.alloc(size)); };
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}
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}
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if (typeof global !== 'undefined' && global.crypto && global.crypto.getRandomValues) {
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// allow for RN packages such as https://www.npmjs.com/package/react-native-get-random-values to populate global
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return function (size) { return global.crypto.getRandomValues(buffer_1.Buffer.alloc(size)); };
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}
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return insecureRandomBytes;
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}
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else {
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var requiredRandomBytes = void 0;
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try {
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requiredRandomBytes = require('crypto').randomBytes;
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}
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catch (e) {
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// keep the fallback
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}
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// NOTE: in transpiled cases the above require might return null/undefined
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return requiredRandomBytes || insecureRandomBytes;
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}
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};
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exports.randomBytes = detectRandomBytes();
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function isAnyArrayBuffer(value) {
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return ['[object ArrayBuffer]', '[object SharedArrayBuffer]'].includes(Object.prototype.toString.call(value));
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}
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exports.isAnyArrayBuffer = isAnyArrayBuffer;
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function isUint8Array(value) {
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return Object.prototype.toString.call(value) === '[object Uint8Array]';
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}
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exports.isUint8Array = isUint8Array;
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function isBigInt64Array(value) {
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return Object.prototype.toString.call(value) === '[object BigInt64Array]';
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}
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exports.isBigInt64Array = isBigInt64Array;
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function isBigUInt64Array(value) {
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return Object.prototype.toString.call(value) === '[object BigUint64Array]';
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}
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exports.isBigUInt64Array = isBigUInt64Array;
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function isRegExp(d) {
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return Object.prototype.toString.call(d) === '[object RegExp]';
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}
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exports.isRegExp = isRegExp;
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function isMap(d) {
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return Object.prototype.toString.call(d) === '[object Map]';
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}
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exports.isMap = isMap;
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/** Call to check if your environment has `Buffer` */
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function haveBuffer() {
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return typeof global !== 'undefined' && typeof global.Buffer !== 'undefined';
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}
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exports.haveBuffer = haveBuffer;
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// To ensure that 0.4 of node works correctly
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function isDate(d) {
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return isObjectLike(d) && Object.prototype.toString.call(d) === '[object Date]';
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}
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exports.isDate = isDate;
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/**
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* @internal
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* this is to solve the `'someKey' in x` problem where x is unknown.
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* https://github.com/typescript-eslint/typescript-eslint/issues/1071#issuecomment-541955753
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*/
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function isObjectLike(candidate) {
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return typeof candidate === 'object' && candidate !== null;
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}
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exports.isObjectLike = isObjectLike;
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function deprecate(fn, message) {
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var warned = false;
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function deprecated() {
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var args = [];
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for (var _i = 0; _i < arguments.length; _i++) {
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args[_i] = arguments[_i];
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}
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if (!warned) {
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console.warn(message);
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warned = true;
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}
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return fn.apply(this, args);
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}
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return deprecated;
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}
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exports.deprecate = deprecate;
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//# sourceMappingURL=utils.js.map
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