jiti-meet/react/features/base/util/parseURLParams.js

70 lines
1.9 KiB
JavaScript

/* @flow */
import Bourne from '@hapi/bourne';
import { reportError } from './helpers';
/**
* A list if keys to ignore when parsing.
* @type {string[]}
*/
const blacklist = [ '__proto__', 'constructor', 'prototype' ];
/**
* Parses the query/search or fragment/hash parameters out of a specific URL and
* returns them as a JS object.
*
* @param {URL} url - The URL to parse.
* @param {boolean} dontParse - If falsy, some transformations (for parsing the
* value as JSON) will be executed.
* @param {string} source - If {@code 'search'}, the parameters will parsed out
* of {@code url.search}; otherwise, out of {@code url.hash}.
* @returns {Object}
*/
export function parseURLParams(
url: URL,
dontParse: boolean = false,
source: string = 'hash'): Object {
const paramStr = source === 'search' ? url.search : url.hash;
const params = {};
const paramParts = (paramStr && paramStr.substr(1).split('&')) || [];
// Detect and ignore hash params for hash routers.
if (source === 'hash' && paramParts.length === 1) {
const firstParam = paramParts[0];
if (firstParam.startsWith('/') && firstParam.split('&').length === 1) {
return params;
}
}
paramParts.forEach(part => {
const param = part.split('=');
const key = param[0];
if (!key || key.split('.').some(k => blacklist.includes(k))) {
return;
}
let value;
try {
value = param[1];
if (!dontParse) {
const decoded = decodeURIComponent(value).replace(/\\&/, '&');
value = decoded === 'undefined' ? undefined : Bourne.parse(decoded);
}
} catch (e) {
reportError(
e, `Failed to parse URL parameter value: ${String(value)}`);
return;
}
params[key] = value;
});
return params;
}