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108 lines
2.7 KiB
108 lines
2.7 KiB
import type { UploadRequestOption, UploadRequestError, UploadProgressEvent } from './interface';
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function getError(option: UploadRequestOption, xhr: XMLHttpRequest) {
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const msg = `cannot ${option.method} ${option.action} ${xhr.status}'`;
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const err = new Error(msg) as UploadRequestError;
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err.status = xhr.status;
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err.method = option.method;
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err.url = option.action;
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return err;
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}
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function getBody(xhr: XMLHttpRequest) {
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const text = xhr.responseText || xhr.response;
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if (!text) {
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return text;
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}
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try {
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return JSON.parse(text);
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} catch (e) {
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return text;
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}
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}
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export default function upload(option: UploadRequestOption) {
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// eslint-disable-next-line no-undef
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const xhr = new XMLHttpRequest();
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if (option.onProgress && xhr.upload) {
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xhr.upload.onprogress = function progress(e: UploadProgressEvent) {
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if (e.total > 0) {
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e.percent = (e.loaded / e.total) * 100;
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}
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option.onProgress(e);
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};
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}
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// eslint-disable-next-line no-undef
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const formData = new FormData();
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if (option.data) {
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Object.keys(option.data).forEach(key => {
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const value = option.data[key];
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// support key-value array data
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if (Array.isArray(value)) {
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value.forEach(item => {
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// { list: [ 11, 22 ] }
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// formData.append('list[]', 11);
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formData.append(`${key}[]`, item);
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});
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return;
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}
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formData.append(key, value as string | Blob);
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});
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}
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// eslint-disable-next-line no-undef
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if (option.file instanceof Blob) {
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formData.append(option.filename, option.file, (option.file as any).name);
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} else {
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formData.append(option.filename, option.file);
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}
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xhr.onerror = function error(e) {
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option.onError(e);
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};
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xhr.onload = function onload() {
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// allow success when 2xx status
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// see https://github.com/react-component/upload/issues/34
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if (xhr.status < 200 || xhr.status >= 300) {
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return option.onError(getError(option, xhr), getBody(xhr));
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}
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return option.onSuccess(getBody(xhr), xhr);
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};
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xhr.open(option.method, option.action, true);
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// Has to be after `.open()`. See https://github.com/enyo/dropzone/issues/179
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if (option.withCredentials && 'withCredentials' in xhr) {
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xhr.withCredentials = true;
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}
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const headers = option.headers || {};
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// when set headers['X-Requested-With'] = null , can close default XHR header
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// see https://github.com/react-component/upload/issues/33
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if (headers['X-Requested-With'] !== null) {
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xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
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}
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Object.keys(headers).forEach(h => {
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if (headers[h] !== null) {
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xhr.setRequestHeader(h, headers[h]);
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}
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});
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xhr.send(formData);
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return {
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abort() {
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xhr.abort();
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},
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};
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}
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