/**
* The copyright in this software is being made available under the BSD License,
* included below. This software may be subject to other third party and contributor
* rights, including patent rights, and no such rights are granted under this license.
*
* Copyright (c) 2013, Dash Industry Forum.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* * Neither the name of Dash Industry Forum nor the names of its
* contributors may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @class
* @ignore
*/
import path from 'path-browserify'
import { UAParser } from 'ua-parser-js'
class Utils {
static mixin(dest, source, copy) {
let s;
let empty = {};
if (dest) {
for (let name in source) {
if (source.hasOwnProperty(name)) {
s = source[name];
if (!(name in dest) || (dest[name] !== s && (!(name in empty) || empty[name] !== s))) {
if (typeof dest[name] === 'object' && dest[name] !== null) {
dest[name] = Utils.mixin(dest[name], s, copy);
} else {
dest[name] = copy(s);
}
}
}
}
}
return dest;
}
static clone(src) {
if (!src || typeof src !== 'object') {
return src; // anything
}
let r;
if (src instanceof Array) {
// array
r = [];
for (let i = 0, l = src.length; i < l; ++i) {
if (i in src) {
r.push(Utils.clone(src[i]));
}
}
} else {
r = {};
}
return Utils.mixin(r, src, Utils.clone);
}
static addAditionalQueryParameterToUrl(url, params) {
try {
if (!params || params.length === 0) {
return url;
}
let modifiedUrl = new URL(url);
params.forEach((param) => {
if (param.key && param.value) {
modifiedUrl.searchParams.set(param.key, param.value);
}
});
return modifiedUrl.href;
} catch (e) {
return url;
}
}
static parseHttpHeaders(headerStr) {
let headers = {};
if (!headerStr) {
return headers;
}
// Trim headerStr to fix a MS Edge bug with xhr.getAllResponseHeaders method
// which send a string starting with a "\n" character
let headerPairs = headerStr.trim().split('\u000d\u000a');
for (let i = 0, ilen = headerPairs.length; i < ilen; i++) {
let headerPair = headerPairs[i];
let index = headerPair.indexOf('\u003a\u0020');
if (index > 0) {
headers[headerPair.substring(0, index)] = headerPair.substring(index + 2);
}
}
return headers;
}
static generateUuid() {
let dt = new Date().getTime();
const uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
const r = (dt + Math.random() * 16) % 16 | 0;
dt = Math.floor(dt / 16);
return (c == 'x' ? r : (r & 0x3 | 0x8)).toString(16);
});
return uuid;
}
static generateHashCode(string) {
let hash = 0;
if (string.length === 0) {
return hash;
}
for (let i = 0; i < string.length; i++) {
const chr = string.charCodeAt(i);
hash = ((hash << 5) - hash) + chr;
hash |= 0;
}
return hash;
}
/**
* Compares both urls and returns a relative url (target relative to original)
* @param {string} originalUrl
* @param {string} targetUrl
* @return {string|*}
*/
static getRelativeUrl(originalUrl, targetUrl) {
try {
const original = new URL(originalUrl);
const target = new URL(targetUrl);
// Unify the protocol to compare the origins
original.protocol = target.protocol;
if (original.origin !== target.origin) {
return targetUrl;
}
// Use the relative path implementation of the path library. We need to cut off the actual filename in the end to get the relative path
let relativePath = path.relative(original.pathname.substr(0, original.pathname.lastIndexOf('/')), target.pathname.substr(0, target.pathname.lastIndexOf('/')));
// In case the relative path is empty (both path are equal) return the filename only. Otherwise add a slash in front of the filename
const startIndexOffset = relativePath.length === 0 ? 1 : 0;
relativePath += target.pathname.substr(target.pathname.lastIndexOf('/') + startIndexOffset, target.pathname.length - 1);
// Build the other candidate, e.g. the 'host relative' path that starts with "/", and return the shortest of the two candidates.
if (target.pathname.length < relativePath.length) {
return target.pathname;
}
return relativePath;
} catch (e) {
return targetUrl
}
}
static parseUserAgent(ua = null) {
try {
const uaString = ua === null ? typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase() : '' : '';
return UAParser(uaString);
}
catch(e) {
return {};
}
}
/**
* Checks for existence of "http" or "https" in a string
* @param string
* @returns {boolean}
*/
static stringHasProtocol(string) {
return (/(http(s?)):\/\//i.test(string))
}
}
export default Utils;