| import { root } from '../../util/root'; |
| import { Observable } from '../../Observable'; |
| import { Subscriber } from '../../Subscriber'; |
| import { map } from '../../operators/map'; |
| function getCORSRequest() { |
| if (root.XMLHttpRequest) { |
| return new root.XMLHttpRequest(); |
| } |
| else if (!!root.XDomainRequest) { |
| return new root.XDomainRequest(); |
| } |
| else { |
| throw new Error('CORS is not supported by your browser'); |
| } |
| } |
| function getXMLHttpRequest() { |
| if (root.XMLHttpRequest) { |
| return new root.XMLHttpRequest(); |
| } |
| else { |
| let progId; |
| try { |
| const progIds = ['Msxml2.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.4.0']; |
| for (let i = 0; i < 3; i++) { |
| try { |
| progId = progIds[i]; |
| if (new root.ActiveXObject(progId)) { |
| break; |
| } |
| } |
| catch (e) { |
| } |
| } |
| return new root.ActiveXObject(progId); |
| } |
| catch (e) { |
| throw new Error('XMLHttpRequest is not supported by your browser'); |
| } |
| } |
| } |
| export function ajaxGet(url, headers = null) { |
| return new AjaxObservable({ method: 'GET', url, headers }); |
| } |
| export function ajaxPost(url, body, headers) { |
| return new AjaxObservable({ method: 'POST', url, body, headers }); |
| } |
| export function ajaxDelete(url, headers) { |
| return new AjaxObservable({ method: 'DELETE', url, headers }); |
| } |
| export function ajaxPut(url, body, headers) { |
| return new AjaxObservable({ method: 'PUT', url, body, headers }); |
| } |
| export function ajaxPatch(url, body, headers) { |
| return new AjaxObservable({ method: 'PATCH', url, body, headers }); |
| } |
| const mapResponse = map((x, index) => x.response); |
| export function ajaxGetJSON(url, headers) { |
| return mapResponse(new AjaxObservable({ |
| method: 'GET', |
| url, |
| responseType: 'json', |
| headers |
| })); |
| } |
| export class AjaxObservable extends Observable { |
| constructor(urlOrRequest) { |
| super(); |
| const request = { |
| async: true, |
| createXHR: function () { |
| return this.crossDomain ? getCORSRequest() : getXMLHttpRequest(); |
| }, |
| crossDomain: true, |
| withCredentials: false, |
| headers: {}, |
| method: 'GET', |
| responseType: 'json', |
| timeout: 0 |
| }; |
| if (typeof urlOrRequest === 'string') { |
| request.url = urlOrRequest; |
| } |
| else { |
| for (const prop in urlOrRequest) { |
| if (urlOrRequest.hasOwnProperty(prop)) { |
| request[prop] = urlOrRequest[prop]; |
| } |
| } |
| } |
| this.request = request; |
| } |
| _subscribe(subscriber) { |
| return new AjaxSubscriber(subscriber, this.request); |
| } |
| } |
| AjaxObservable.create = (() => { |
| const create = (urlOrRequest) => { |
| return new AjaxObservable(urlOrRequest); |
| }; |
| create.get = ajaxGet; |
| create.post = ajaxPost; |
| create.delete = ajaxDelete; |
| create.put = ajaxPut; |
| create.patch = ajaxPatch; |
| create.getJSON = ajaxGetJSON; |
| return create; |
| })(); |
| export class AjaxSubscriber extends Subscriber { |
| constructor(destination, request) { |
| super(destination); |
| this.request = request; |
| this.done = false; |
| const headers = request.headers = request.headers || {}; |
| if (!request.crossDomain && !this.getHeader(headers, 'X-Requested-With')) { |
| headers['X-Requested-With'] = 'XMLHttpRequest'; |
| } |
| let contentTypeHeader = this.getHeader(headers, 'Content-Type'); |
| if (!contentTypeHeader && !(root.FormData && request.body instanceof root.FormData) && typeof request.body !== 'undefined') { |
| headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=UTF-8'; |
| } |
| request.body = this.serializeBody(request.body, this.getHeader(request.headers, 'Content-Type')); |
| this.send(); |
| } |
| next(e) { |
| this.done = true; |
| const { xhr, request, destination } = this; |
| let result; |
| try { |
| result = new AjaxResponse(e, xhr, request); |
| } |
| catch (err) { |
| return destination.error(err); |
| } |
| destination.next(result); |
| } |
| send() { |
| const { request, request: { user, method, url, async, password, headers, body } } = this; |
| try { |
| const xhr = this.xhr = request.createXHR(); |
| this.setupEvents(xhr, request); |
| if (user) { |
| xhr.open(method, url, async, user, password); |
| } |
| else { |
| xhr.open(method, url, async); |
| } |
| if (async) { |
| xhr.timeout = request.timeout; |
| xhr.responseType = request.responseType; |
| } |
| if ('withCredentials' in xhr) { |
| xhr.withCredentials = !!request.withCredentials; |
| } |
| this.setHeaders(xhr, headers); |
| if (body) { |
| xhr.send(body); |
| } |
| else { |
| xhr.send(); |
| } |
| } |
| catch (err) { |
| this.error(err); |
| } |
| } |
| serializeBody(body, contentType) { |
| if (!body || typeof body === 'string') { |
| return body; |
| } |
| else if (root.FormData && body instanceof root.FormData) { |
| return body; |
| } |
| if (contentType) { |
| const splitIndex = contentType.indexOf(';'); |
| if (splitIndex !== -1) { |
| contentType = contentType.substring(0, splitIndex); |
| } |
| } |
| switch (contentType) { |
| case 'application/x-www-form-urlencoded': |
| return Object.keys(body).map(key => `${encodeURIComponent(key)}=${encodeURIComponent(body[key])}`).join('&'); |
| case 'application/json': |
| return JSON.stringify(body); |
| default: |
| return body; |
| } |
| } |
| setHeaders(xhr, headers) { |
| for (let key in headers) { |
| if (headers.hasOwnProperty(key)) { |
| xhr.setRequestHeader(key, headers[key]); |
| } |
| } |
| } |
| getHeader(headers, headerName) { |
| for (let key in headers) { |
| if (key.toLowerCase() === headerName.toLowerCase()) { |
| return headers[key]; |
| } |
| } |
| return undefined; |
| } |
| setupEvents(xhr, request) { |
| const progressSubscriber = request.progressSubscriber; |
| function xhrTimeout(e) { |
| const { subscriber, progressSubscriber, request } = xhrTimeout; |
| if (progressSubscriber) { |
| progressSubscriber.error(e); |
| } |
| let error; |
| try { |
| error = new AjaxTimeoutError(this, request); |
| } |
| catch (err) { |
| error = err; |
| } |
| subscriber.error(error); |
| } |
| xhr.ontimeout = xhrTimeout; |
| xhrTimeout.request = request; |
| xhrTimeout.subscriber = this; |
| xhrTimeout.progressSubscriber = progressSubscriber; |
| if (xhr.upload && 'withCredentials' in xhr) { |
| if (progressSubscriber) { |
| let xhrProgress; |
| xhrProgress = function (e) { |
| const { progressSubscriber } = xhrProgress; |
| progressSubscriber.next(e); |
| }; |
| if (root.XDomainRequest) { |
| xhr.onprogress = xhrProgress; |
| } |
| else { |
| xhr.upload.onprogress = xhrProgress; |
| } |
| xhrProgress.progressSubscriber = progressSubscriber; |
| } |
| let xhrError; |
| xhrError = function (e) { |
| const { progressSubscriber, subscriber, request } = xhrError; |
| if (progressSubscriber) { |
| progressSubscriber.error(e); |
| } |
| let error; |
| try { |
| error = new AjaxError('ajax error', this, request); |
| } |
| catch (err) { |
| error = err; |
| } |
| subscriber.error(error); |
| }; |
| xhr.onerror = xhrError; |
| xhrError.request = request; |
| xhrError.subscriber = this; |
| xhrError.progressSubscriber = progressSubscriber; |
| } |
| function xhrReadyStateChange(e) { |
| return; |
| } |
| xhr.onreadystatechange = xhrReadyStateChange; |
| xhrReadyStateChange.subscriber = this; |
| xhrReadyStateChange.progressSubscriber = progressSubscriber; |
| xhrReadyStateChange.request = request; |
| function xhrLoad(e) { |
| const { subscriber, progressSubscriber, request } = xhrLoad; |
| if (this.readyState === 4) { |
| let status = this.status === 1223 ? 204 : this.status; |
| let response = (this.responseType === 'text' ? (this.response || this.responseText) : this.response); |
| if (status === 0) { |
| status = response ? 200 : 0; |
| } |
| if (status < 400) { |
| if (progressSubscriber) { |
| progressSubscriber.complete(); |
| } |
| subscriber.next(e); |
| subscriber.complete(); |
| } |
| else { |
| if (progressSubscriber) { |
| progressSubscriber.error(e); |
| } |
| let error; |
| try { |
| error = new AjaxError('ajax error ' + status, this, request); |
| } |
| catch (err) { |
| error = err; |
| } |
| subscriber.error(error); |
| } |
| } |
| } |
| xhr.onload = xhrLoad; |
| xhrLoad.subscriber = this; |
| xhrLoad.progressSubscriber = progressSubscriber; |
| xhrLoad.request = request; |
| } |
| unsubscribe() { |
| const { done, xhr } = this; |
| if (!done && xhr && xhr.readyState !== 4 && typeof xhr.abort === 'function') { |
| xhr.abort(); |
| } |
| super.unsubscribe(); |
| } |
| } |
| export class AjaxResponse { |
| constructor(originalEvent, xhr, request) { |
| this.originalEvent = originalEvent; |
| this.xhr = xhr; |
| this.request = request; |
| this.status = xhr.status; |
| this.responseType = xhr.responseType || request.responseType; |
| this.response = parseXhrResponse(this.responseType, xhr); |
| } |
| } |
| const AjaxErrorImpl = (() => { |
| function AjaxErrorImpl(message, xhr, request) { |
| Error.call(this); |
| this.message = message; |
| this.name = 'AjaxError'; |
| this.xhr = xhr; |
| this.request = request; |
| this.status = xhr.status; |
| this.responseType = xhr.responseType || request.responseType; |
| this.response = parseXhrResponse(this.responseType, xhr); |
| return this; |
| } |
| AjaxErrorImpl.prototype = Object.create(Error.prototype); |
| return AjaxErrorImpl; |
| })(); |
| export const AjaxError = AjaxErrorImpl; |
| function parseJson(xhr) { |
| if ('response' in xhr) { |
| return xhr.responseType ? xhr.response : JSON.parse(xhr.response || xhr.responseText || 'null'); |
| } |
| else { |
| return JSON.parse(xhr.responseText || 'null'); |
| } |
| } |
| function parseXhrResponse(responseType, xhr) { |
| switch (responseType) { |
| case 'json': |
| return parseJson(xhr); |
| case 'xml': |
| return xhr.responseXML; |
| case 'text': |
| default: |
| return ('response' in xhr) ? xhr.response : xhr.responseText; |
| } |
| } |
| function AjaxTimeoutErrorImpl(xhr, request) { |
| AjaxError.call(this, 'ajax timeout', xhr, request); |
| this.name = 'AjaxTimeoutError'; |
| return this; |
| } |
| export const AjaxTimeoutError = AjaxTimeoutErrorImpl; |
| //# sourceMappingURL=AjaxObservable.js.map |