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import { join as joinPaths } from 'path';
// Returns a decoded url parameter value
// - Treats '+' as '%20'
function decodeUrlParameter(val) {
return decodeURIComponent(val.replace(/\+/g, '%20'));
}
// Returns an array containing the value(s) of the
// of the key passed as an argument
export function getParameterValues(sParam, url = window.location) {
const sPageURL = decodeURIComponent(new URL(url).search.substring(1));
return sPageURL.split('&').reduce((acc, urlParam) => {
const sParameterName = urlParam.split('=');
if (sParameterName[0] === sParam) {
acc.push(sParameterName[1].replace(/\+/g, ' '));
}
return acc;
}, []);
}
// @param {Object} params - url keys and value to merge
// @param {String} url
export function mergeUrlParams(params, url) {
const re = /^([^?#]*)(\?[^#]*)?(.*)/;
const merged = {};
const urlparts = url.match(re);
if (urlparts[2]) {
urlparts[2]
.substr(1)
.split('&')
.forEach(part => {
if (part.length) {
const kv = part.split('=');
merged[decodeUrlParameter(kv[0])] = decodeUrlParameter(kv.slice(1).join('='));
}
});
}
Object.assign(merged, params);
const query = Object.keys(merged)
.map(key => `${encodeURIComponent(key)}=${encodeURIComponent(merged[key])}`)
.join('&');
return `${urlparts[1]}?${query}${urlparts[3]}`;
}
/**
* Removes specified query params from the url by returning a new url string that no longer
* includes the param/value pair. If no url is provided, `window.location.href` is used as
* the default value.
*
* @param {string[]} params - the query param names to remove
* @param {string} [url=windowLocation().href] - url from which the query param will be removed
* @returns {string} A copy of the original url but without the query param
*/
export function removeParams(params, url = window.location.href) {
const [rootAndQuery, fragment] = url.split('#');
const [root, query] = rootAndQuery.split('?');
if (!query) {
return url;
}
const encodedParams = params.map(param => encodeURIComponent(param));
const updatedQuery = query
.split('&')
.filter(paramPair => {
const [foundParam] = paramPair.split('=');
return encodedParams.indexOf(foundParam) < 0;
})
.join('&');
const writableQuery = updatedQuery.length > 0 ? `?${updatedQuery}` : '';
const writableFragment = fragment ? `#${fragment}` : '';
return `${root}${writableQuery}${writableFragment}`;
}
export function getLocationHash(url = window.location.href) {
const hashIndex = url.indexOf('#');
return hashIndex === -1 ? null : url.substring(hashIndex + 1);
}
/**
* Apply the fragment to the given url by returning a new url string that includes
* the fragment. If the given url already contains a fragment, the original fragment
* will be removed.
*
* @param {string} url - url to which the fragment will be applied
* @param {string} fragment - fragment to append
*/
export const setUrlFragment = (url, fragment) => {
const [rootUrl] = url.split('#');
const encodedFragment = encodeURIComponent(fragment.replace(/^#/, ''));
return `${rootUrl}#${encodedFragment}`;
};
export function visitUrl(url, external = false) {
if (external) {
// Simulate `target="blank" rel="noopener noreferrer"`
// See https://mathiasbynens.github.io/rel-noopener/
const otherWindow = window.open();
otherWindow.opener = null;
otherWindow.location = url;
} else {
window.location.href = url;
}
}
export function refreshCurrentPage() {
visitUrl(window.location.href);
}
export function redirectTo(url) {
return window.location.assign(url);
}
export function webIDEUrl(route = undefined) {
let returnUrl = `${gon.relative_url_root || ''}/-/ide/`;
if (route) {
returnUrl += `project${route.replace(new RegExp(`^${gon.relative_url_root || ''}`), '')}`;
}
return returnUrl;
}
/**
* Returns current base URL
*/
export function getBaseURL() {
const { protocol, host } = window.location;
return `${protocol}//${host}`;
}
/**
* Returns true if url is an absolute or root-relative URL
*
* @param {String} url
*/
export function isAbsoluteOrRootRelative(url) {
return /^(https?:)?\//.test(url);
}
/**
* Checks if the provided URL is a safe URL (absolute http(s) or root-relative URL)
*
* @param {String} url that will be checked
* @returns {Boolean}
*/
export function isSafeURL(url) {
if (!isAbsoluteOrRootRelative(url)) {
return false;
}
try {
const parsedUrl = new URL(url, getBaseURL());
return ['http:', 'https:'].includes(parsedUrl.protocol);
} catch (e) {
return false;
}
}
export function getWebSocketProtocol() {
return window.location.protocol.replace('http', 'ws');
}
export function getWebSocketUrl(path) {
return `${getWebSocketProtocol()}//${joinPaths(window.location.host, path)}`;
}
export { joinPaths };
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