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/**
* @copyright 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author John Molakvoæ <skjnldsv@protonmail.com>
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
import $ from 'jquery'
/**
* Parses a URL query string into a JS map
*
* @param {string} queryString query string in the format param1=1234¶m2=abcde¶m3=xyz
* @return {object.<string, string>} map containing key/values matching the URL parameters
*/
export const parse = queryString => {
let pos
let components
const result = {}
let key
if (!queryString) {
return null
}
pos = queryString.indexOf('?')
if (pos >= 0) {
queryString = queryString.substr(pos + 1)
}
const parts = queryString.replace(/\+/g, '%20').split('&')
for (let i = 0; i < parts.length; i++) {
// split on first equal sign
const part = parts[i]
pos = part.indexOf('=')
if (pos >= 0) {
components = [
part.substr(0, pos),
part.substr(pos + 1),
]
} else {
// key only
components = [part]
}
if (!components.length) {
continue
}
key = decodeURIComponent(components[0])
if (!key) {
continue
}
// if equal sign was there, return string
if (components.length > 1) {
result[key] = decodeURIComponent(components[1])
} else {
// no equal sign => null value
result[key] = null
}
}
return result
}
/**
* Builds a URL query from a JS map.
*
* @param {object.<string, string>} params map containing key/values matching the URL parameters
* @return {string} String containing a URL query (without question) mark
*/
export const build = params => {
if (!params) {
return ''
}
return $.map(params, function(value, key) {
let s = encodeURIComponent(key)
if (value !== null && typeof (value) !== 'undefined') {
s += '=' + encodeURIComponent(value)
}
return s
}).join('&')
}
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