80 lines
2.5 KiB
JavaScript
80 lines
2.5 KiB
JavaScript
// (C) Copyright 2015 Moodle Pty Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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* Class with helper functions for urls.
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*/
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class Url {
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/**
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* Add params to a URL.
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*
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* @param url URL to add the params to.
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* @param params Object with the params to add.
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* @return URL with params.
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*/
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static addParamsToUrl(url, params) {
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let separator = url.indexOf('?') != -1 ? '&' : '?';
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for (const key in params) {
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let value = params[key];
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// Ignore objects.
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if (typeof value != 'object') {
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url += separator + key + '=' + value;
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separator = '&';
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}
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}
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return url;
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}
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/**
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* Parse parts of a url, using an implicit protocol if it is missing from the url.
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*
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* @param url Url.
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* @return Url parts.
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*/
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static parse(url) {
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// Parse url with regular expression taken from RFC 3986: https://tools.ietf.org/html/rfc3986#appendix-B.
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const match = url.trim().match(/^(([^:/?#]+):)?(\/\/([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?/);
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if (!match) {
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return null;
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}
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const host = match[4] || '';
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// Get the credentials and the port from the host.
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const [domainAndPort, credentials] = host.split('@').reverse();
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const [domain, port] = domainAndPort.split(':');
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const [username, password] = credentials ? credentials.split(':') : [];
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// Prepare parts replacing empty strings with undefined.
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return {
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protocol: match[2] || undefined,
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domain: domain || undefined,
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port: port || undefined,
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credentials: credentials || undefined,
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username: username || undefined,
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password: password || undefined,
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path: match[5] || undefined,
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query: match[7] || undefined,
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fragment: match[9] || undefined,
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};
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}
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}
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module.exports = Url;
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