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upload-helper.js
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upload-helper.js
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import {_getCSRFCookie} from './etools-ajax-utils';
const activeXhrRequests = {};
export function getActiveXhrRequests() {
return activeXhrRequests;
}
export async function upload(config, rawFile, filename, onProgressCallback) {
const headers = await _getHeaders(config.jwtLocalStorageKey);
const options = {
method: 'POST',
url: _getEndpoint(config.endpointInfo, config.uploadEndpoint),
body: _prepareBody(rawFile, filename, config.endpointInfo),
rejectWithRequest: config.endpointInfo && config.endpointInfo.rejectWithRequest,
headers
};
return sendRequest(options, filename, onProgressCallback)
.then((response) => {
delete activeXhrRequests[filename];
if (typeof response === 'string') {
response = JSON.parse(response);
}
return response;
})
.catch((error) => {
delete activeXhrRequests[filename];
throw error;
});
}
async function _getHeaders(jwtLocalStorageKey) {
const csrfToken = _getCSRFCookie();
let jwtToken = _getJwtToken(jwtLocalStorageKey);
const headers = {};
if (csrfToken) {
headers['x-csrftoken'] = csrfToken;
}
if (jwtLocalStorageKey) {
if (window.AppMsalInstance) {
try {
jwtToken = await window.AppMsalInstance.acquireTokenSilent();
} catch (err) {
window.location.reload(true);
}
}
if (jwtToken) {
headers['authorization'] = 'JWT ' + jwtToken;
}
}
return headers;
}
function _getEndpoint(endpointInfo, uploadEndpoint) {
if (endpointInfo && endpointInfo.endpoint) {
return endpointInfo.endpoint;
}
return uploadEndpoint;
}
function _prepareBody(rawFile, filename, endpointInfo) {
const fd = new FormData();
const rawFileProperty = _getRawFilePropertyName(endpointInfo);
fd.append(rawFileProperty, rawFile, filename);
if (endpointInfo && endpointInfo.extraInfo) {
_addAnyExtraInfoToBody(fd, endpointInfo.extraInfo);
}
return fd;
}
function sendRequest(options, requestKey, onProgressCallback) {
const request = document.createElement('iron-request');
if (typeof onProgressCallback === 'function') {
request.xhr.upload.onprogress = onProgressCallback;
}
activeXhrRequests[requestKey] = request;
request.send(options);
return request.completes.then((request) => {
return request.response;
});
}
function _getRawFilePropertyName(endpointInfo) {
if (endpointInfo && endpointInfo.rawFilePropertyName) {
return endpointInfo.rawFilePropertyName;
}
return 'file';
}
function _addAnyExtraInfoToBody(formData, extraInfo) {
for (const prop in extraInfo) {
if (Object.prototype.hasOwnProperty.call(extraInfo, prop)) {
formData.append(prop, extraInfo[prop]);
}
}
}
function _getJwtToken(jwtLocalStorageKey) {
return localStorage.getItem(jwtLocalStorageKey);
}
export function abortActiveRequests(activeReqKeys) {
if (!activeXhrRequests) {
return;
}
const keys = activeReqKeys || Object.keys(activeXhrRequests);
if (keys.length) {
keys.forEach((key) => {
try {
activeXhrRequests[key].abort();
delete activeXhrRequests[key];
} catch (error) {
//
}
});
}
}