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/**
* SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
import { getRootUrl } from '@nextcloud/router'
/**
*
* @param {string} url the URL to check
* @return {boolean}
*/
const isRelativeUrl = (url) => {
return !url.startsWith('https://') && !url.startsWith('http://')
}
/**
* @param {string} url The URL to check
* @return {boolean} true if the URL points to this nextcloud instance
*/
const isNextcloudUrl = (url) => {
const nextcloudBaseUrl = window.location.protocol + '//' + window.location.host + getRootUrl()
// if the URL is absolute and starts with the baseUrl+rootUrl
// OR if the URL is relative and starts with rootUrl
return url.startsWith(nextcloudBaseUrl)
|| (isRelativeUrl(url) && url.startsWith(getRootUrl()))
}
/**
* Intercept XMLHttpRequest and fetch API calls to add X-Requested-With header
*
* This is also done in @nextcloud/axios but not all requests pass through that
*/
export const interceptRequests = () => {
XMLHttpRequest.prototype.open = (function(open) {
return function(method, url, async) {
open.apply(this, arguments)
if (isNextcloudUrl(url) && !this.getResponseHeader('X-Requested-With')) {
this.setRequestHeader('X-Requested-With', 'XMLHttpRequest')
}
}
})(XMLHttpRequest.prototype.open)
window.fetch = (function(fetch) {
return (resource, options) => {
// fetch allows the `input` to be either a Request object or any stringifyable value
if (!isNextcloudUrl(resource.url ?? resource.toString())) {
return fetch(resource, options)
}
if (!options) {
options = {}
}
if (!options.headers) {
options.headers = new Headers()
}
if (options.headers instanceof Headers && !options.headers.has('X-Requested-With')) {
options.headers.append('X-Requested-With', 'XMLHttpRequest')
} else if (options.headers instanceof Object && !options.headers['X-Requested-With']) {
options.headers['X-Requested-With'] = 'XMLHttpRequest'
}
return fetch(resource, options)
}
})(window.fetch)
}
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