60 lines
1.3 KiB
JavaScript
60 lines
1.3 KiB
JavaScript
const qs = require('querystring');
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const spliceString = (string, index, removals = 0, insert = '') => {
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return (
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string.slice(0, index) + insert + string.slice(index + Math.abs(removals))
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);
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};
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const DBUC_REGEX = /^[0-9a-fA-F]{2}$/;
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const decodeComponent = (string) => {
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let percentIndex;
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while ((percentIndex = string.indexOf('%')) !== -1) {
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const encodedByte = string.substr(percentIndex + 1, 2);
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if (!DBUC_REGEX.test(encodedByte)) {
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throw new Error('Invalid input (not URI encoded?)');
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}
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string = spliceString(
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string,
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percentIndex,
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3,
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String.fromCharCode(parseInt(encodedByte, 16)),
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);
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}
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return string;
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};
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const parse = (query, maxKeys = 12) => {
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return qs.parse(query, '&', '=', {
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decodeURIComponent: decodeComponent,
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maxKeys,
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});
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};
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const fromUrl = (url, max) => {
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const splitUrl = url.split('?');
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if (splitUrl.length > 2) {
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throw new Error('Invalid URL');
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}
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if (splitUrl.length === 1) {
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return {};
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}
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return parse(splitUrl[1]);
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};
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module.exports = {
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decodeURIComponent: decodeComponent,
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decodeUriComponent: decodeComponent,
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parse,
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fromUrl,
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__test: (cb) => {
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cb({
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spliceString,
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DBUC_REGEX,
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decodeComponent,
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parse,
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fromUrl,
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});
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},
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};
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