import utils from './../utils.js'; import settle from './../core/settle.js'; import transitionalDefaults from '../defaults/transitional.js'; import AxiosError from '../core/AxiosError.js'; import CanceledError from '../cancel/CanceledError.js'; import parseProtocol from '../helpers/parseProtocol.js'; import platform from '../platform/index.js'; import AxiosHeaders from '../core/AxiosHeaders.js'; import {progressEventReducer} from '../helpers/progressEventReducer.js'; import resolveConfig from "../helpers/resolveConfig.js"; const isXHRAdapterSupported = typeof XMLHttpRequest !== 'undefined'; export default isXHRAdapterSupported && function (config) { return new Promise(function dispatchXhrRequest(resolve, reject) { const _config = resolveConfig(config); let requestData = _config.data; const requestHeaders = AxiosHeaders.from(_config.headers).normalize(); let {responseType, onUploadProgress, onDownloadProgress} = _config; let onCanceled; let uploadThrottled, downloadThrottled; let flushUpload, flushDownload; function done() { flushUpload && flushUpload(); // flush events flushDownload && flushDownload(); // flush events _config.cancelToken && _config.cancelToken.unsubscribe(onCanceled); _config.signal && _config.signal.removeEventListener('abort', onCanceled); } let request = new XMLHttpRequest(); request.open(_config.method.toUpperCase(), _config.url, true); // Set the request timeout in MS request.timeout = _config.timeout; function onloadend() { if (!request) { return; } // Prepare the response const responseHeaders = AxiosHeaders.from( 'getAllResponseHeaders' in request && request.getAllResponseHeaders() ); const responseData = !responseType || responseType === 'text' || responseType === 'json' ? request.responseText : request.response; const response = { data: responseData, status: request.status, statusText: request.statusText, headers: responseHeaders, config, request }; settle(function _resolve(value) { resolve(value); done(); }, function _reject(err) { reject(err); done(); }, response); // Clean up request request = null; } if ('onloadend' in request) { // Use onloadend if available request.onloadend = onloadend; } else { // Listen for ready state to emulate onloadend request.onreadystatechange = function handleLoad() { if (!request || request.readyState !== 4) { return; } // The request errored out and we didn't get a response, this will be // handled by onerror instead // With one exception: request that using file: protocol, most browsers // will return status as 0 even though it's a successful request if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) { return; } // readystate handler is calling before onerror or ontimeout handlers, // so we should call onloadend on the next 'tick' setTimeout(onloadend); }; } // Handle browser request cancellation (as opposed to a manual cancellation) request.onabort = function handleAbort() { if (!request) { return; } reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request)); // Clean up request request = null; }; // Handle low level network errors request.onerror = function handleError() { // Real errors are hidden from us by the browser // onerror should only fire if it's a network error reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request)); // Clean up request request = null; }; // Handle timeout request.ontimeout = function handleTimeout() { let timeoutErrorMessage = _config.timeout ? 'timeout of ' + _config.timeout + 'ms exceeded' : 'timeout exceeded'; const transitional = _config.transitional || transitionalDefaults; if (_config.timeoutErrorMessage) { timeoutErrorMessage = _config.timeoutErrorMessage; } reject(new AxiosError( timeoutErrorMessage, transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED, config, request)); // Clean up request request = null; }; // Remove Content-Type if data is undefined requestData === undefined && requestHeaders.setContentType(null); // Add headers to the request if ('setRequestHeader' in request) { utils.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) { request.setRequestHeader(key, val); }); } // Add withCredentials to request if needed if (!utils.isUndefined(_config.withCredentials)) { request.withCredentials = !!_config.withCredentials; } // Add responseType to request if needed if (responseType && responseType !== 'json') { request.responseType = _config.responseType; } // Handle progress if needed if (onDownloadProgress) { ([downloadThrottled, flushDownload] = progressEventReducer(onDownloadProgress, true)); request.addEventListener('progress', downloadThrottled); } // Not all browsers support upload events if (onUploadProgress && request.upload) { ([uploadThrottled, flushUpload] = progressEventReducer(onUploadProgress)); request.upload.addEventListener('progress', uploadThrottled); request.upload.addEventListener('loadend', flushUpload); } if (_config.cancelToken || _config.signal) { // Handle cancellation // eslint-disable-next-line func-names onCanceled = cancel => { if (!request) { return; } reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel); request.abort(); request = null; }; _config.cancelToken && _config.cancelToken.subscribe(onCanceled); if (_config.signal) { _config.signal.aborted ? onCanceled() : _config.signal.addEventListener('abort', onCanceled); } } const protocol = parseProtocol(_config.url); if (protocol && platform.protocols.indexOf(protocol) === -1) { reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config)); return; } // Send the request request.send(requestData || null); });