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77 lines
2.2 KiB
JavaScript
77 lines
2.2 KiB
JavaScript
/* global window, dcodeIO */
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/* eslint-disable no-proto, no-restricted-syntax, guard-for-in */
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window.textsecure = window.textsecure || {};
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/** *******************************
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*** Type conversion utilities ***
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******************************** */
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// Strings/arrays
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// TODO: Throw all this shit in favor of consistent types
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// TODO: Namespace
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const StaticByteBufferProto = new dcodeIO.ByteBuffer().__proto__;
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const StaticArrayBufferProto = new ArrayBuffer().__proto__;
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const StaticUint8ArrayProto = new Uint8Array().__proto__;
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function getString(thing) {
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if (thing === Object(thing)) {
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if (thing.__proto__ === StaticUint8ArrayProto) {
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return String.fromCharCode.apply(null, thing);
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}
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if (thing.__proto__ === StaticArrayBufferProto) {
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return getString(new Uint8Array(thing));
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}
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if (thing.__proto__ === StaticByteBufferProto) {
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return thing.toString('binary');
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}
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}
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return thing;
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}
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function getStringable(thing) {
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return (
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typeof thing === 'string' ||
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typeof thing === 'number' ||
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typeof thing === 'boolean' ||
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(thing === Object(thing) &&
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(thing.__proto__ === StaticArrayBufferProto ||
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thing.__proto__ === StaticUint8ArrayProto ||
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thing.__proto__ === StaticByteBufferProto))
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);
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}
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// Number formatting utils
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window.textsecure.utils = (() => {
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const self = {};
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self.unencodeNumber = number => number.split('.');
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self.isNumberSane = number => number[0] === '+' && /^[0-9]+$/.test(number.substring(1));
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/** ************************
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*** JSON'ing Utilities ***
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************************* */
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function ensureStringed(thing) {
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if (getStringable(thing)) {
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return getString(thing);
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} else if (thing instanceof Array) {
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const res = [];
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for (let i = 0; i < thing.length; i += 1) {
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res[i] = ensureStringed(thing[i]);
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}
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return res;
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} else if (thing === Object(thing)) {
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const res = {};
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for (const key in thing) {
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res[key] = ensureStringed(thing[key]);
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}
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return res;
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} else if (thing === null) {
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return null;
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}
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throw new Error(`unsure of how to jsonify object of type ${typeof thing}`);
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}
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self.jsonThing = thing => JSON.stringify(ensureStringed(thing));
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return self;
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})();
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