forked from transloadit/uppy
/
MiniXHRUpload.js
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/
MiniXHRUpload.js
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const { nanoid } = require('nanoid/non-secure')
const { Provider, RequestClient, Socket } = require('@uppy/companion-client')
const emitSocketProgress = require('@uppy/utils/lib/emitSocketProgress')
const getSocketHost = require('@uppy/utils/lib/getSocketHost')
const EventTracker = require('@uppy/utils/lib/EventTracker')
const ProgressTimeout = require('@uppy/utils/lib/ProgressTimeout')
const NetworkError = require('@uppy/utils/lib/NetworkError')
const isNetworkError = require('@uppy/utils/lib/isNetworkError')
const { internalRateLimitedQueue } = require('@uppy/utils/lib/RateLimitedQueue')
// See XHRUpload
function buildResponseError (xhr, error) {
if (isNetworkError(xhr)) return new NetworkError(error, xhr)
// TODO: when we drop support for browsers that do not support this syntax, use:
// return new Error('Upload error', { cause: error, request: xhr })
const err = new Error('Upload error')
err.cause = error
err.request = xhr
return err
}
// See XHRUpload
function setTypeInBlob (file) {
const dataWithUpdatedType = file.data.slice(0, file.data.size, file.meta.type)
return dataWithUpdatedType
}
function addMetadata (formData, meta, opts) {
const metaFields = Array.isArray(opts.metaFields)
? opts.metaFields
// Send along all fields by default.
: Object.keys(meta)
metaFields.forEach((item) => {
formData.append(item, meta[item])
})
}
function createFormDataUpload (file, opts) {
const formPost = new FormData()
addMetadata(formPost, file.meta, opts)
const dataWithUpdatedType = setTypeInBlob(file)
if (file.name) {
formPost.append(opts.fieldName, dataWithUpdatedType, file.meta.name)
} else {
formPost.append(opts.fieldName, dataWithUpdatedType)
}
return formPost
}
const createBareUpload = file => file.data
module.exports = class MiniXHRUpload {
constructor (uppy, opts) {
this.uppy = uppy
this.opts = {
validateStatus (status) {
return status >= 200 && status < 300
},
...opts,
}
this.requests = opts[internalRateLimitedQueue]
this.uploaderEvents = Object.create(null)
this.i18n = opts.i18n
}
#getOptions (file) {
const { uppy } = this
const overrides = uppy.getState().xhrUpload
const opts = {
...this.opts,
...(overrides || {}),
...(file.xhrUpload || {}),
headers: {
...this.opts.headers,
...overrides?.headers,
...file.xhrUpload?.headers,
},
}
return opts
}
uploadFile (id, current, total) {
const file = this.uppy.getFile(id)
if (file.error) {
throw new Error(file.error)
} else if (file.isRemote) {
return this.#uploadRemoteFile(file, current, total)
}
return this.#uploadLocalFile(file, current, total)
}
#addEventHandlerForFile (eventName, fileID, eventHandler) {
this.uploaderEvents[fileID].on(eventName, (targetFileID) => {
if (fileID === targetFileID) eventHandler()
})
}
#addEventHandlerIfFileStillExists (eventName, fileID, eventHandler) {
this.uploaderEvents[fileID].on(eventName, () => {
if (this.uppy.getFile(fileID)) eventHandler()
})
}
#uploadLocalFile (file, current, total) {
const opts = this.#getOptions(file)
this.uppy.log(`uploading ${current} of ${total}`)
return new Promise((resolve, reject) => {
// This is done in index.js in the S3 plugin.
// this.uppy.emit('upload-started', file)
const data = opts.formData
? createFormDataUpload(file, opts)
: createBareUpload(file, opts)
const xhr = new XMLHttpRequest()
this.uploaderEvents[file.id] = new EventTracker(this.uppy)
const timer = new ProgressTimeout(opts.timeout, () => {
xhr.abort()
// eslint-disable-next-line no-use-before-define
queuedRequest.done()
const error = new Error(this.i18n('timedOut', { seconds: Math.ceil(opts.timeout / 1000) }))
this.uppy.emit('upload-error', file, error)
reject(error)
})
const id = nanoid()
xhr.upload.addEventListener('loadstart', () => {
this.uppy.log(`[AwsS3/XHRUpload] ${id} started`)
})
xhr.upload.addEventListener('progress', (ev) => {
this.uppy.log(`[AwsS3/XHRUpload] ${id} progress: ${ev.loaded} / ${ev.total}`)
// Begin checking for timeouts when progress starts, instead of loading,
// to avoid timing out requests on browser concurrency queue
timer.progress()
if (ev.lengthComputable) {
this.uppy.emit('upload-progress', file, {
uploader: this,
bytesUploaded: ev.loaded,
bytesTotal: ev.total,
})
}
})
xhr.addEventListener('load', (ev) => {
this.uppy.log(`[AwsS3/XHRUpload] ${id} finished`)
timer.done()
// eslint-disable-next-line no-use-before-define
queuedRequest.done()
if (this.uploaderEvents[file.id]) {
this.uploaderEvents[file.id].remove()
this.uploaderEvents[file.id] = null
}
if (opts.validateStatus(ev.target.status, xhr.responseText, xhr)) {
const body = opts.getResponseData(xhr.responseText, xhr)
const uploadURL = body[opts.responseUrlFieldName]
const uploadResp = {
status: ev.target.status,
body,
uploadURL,
}
this.uppy.emit('upload-success', file, uploadResp)
if (uploadURL) {
this.uppy.log(`Download ${file.name} from ${uploadURL}`)
}
return resolve(file)
}
const body = opts.getResponseData(xhr.responseText, xhr)
const error = buildResponseError(xhr, opts.getResponseError(xhr.responseText, xhr))
const response = {
status: ev.target.status,
body,
}
this.uppy.emit('upload-error', file, error, response)
return reject(error)
})
xhr.addEventListener('error', () => {
this.uppy.log(`[AwsS3/XHRUpload] ${id} errored`)
timer.done()
// eslint-disable-next-line no-use-before-define
queuedRequest.done()
if (this.uploaderEvents[file.id]) {
this.uploaderEvents[file.id].remove()
this.uploaderEvents[file.id] = null
}
const error = buildResponseError(xhr, opts.getResponseError(xhr.responseText, xhr))
this.uppy.emit('upload-error', file, error)
return reject(error)
})
xhr.open(opts.method.toUpperCase(), opts.endpoint, true)
// IE10 does not allow setting `withCredentials` and `responseType`
// before `open()` is called. It’s important to set withCredentials
// to a boolean, otherwise React Native crashes
xhr.withCredentials = Boolean(opts.withCredentials)
if (opts.responseType !== '') {
xhr.responseType = opts.responseType
}
Object.keys(opts.headers).forEach((header) => {
xhr.setRequestHeader(header, opts.headers[header])
})
const queuedRequest = this.requests.run(() => {
xhr.send(data)
return () => {
// eslint-disable-next-line no-use-before-define
timer.done()
xhr.abort()
}
}, { priority: 1 })
this.#addEventHandlerForFile('file-removed', file.id, () => {
queuedRequest.abort()
reject(new Error('File removed'))
})
this.#addEventHandlerIfFileStillExists('cancel-all', file.id, () => {
queuedRequest.abort()
reject(new Error('Upload cancelled'))
})
})
}
#uploadRemoteFile (file) {
const opts = this.#getOptions(file)
// This is done in index.js in the S3 plugin.
// this.uppy.emit('upload-started', file)
const metaFields = Array.isArray(opts.metaFields)
? opts.metaFields
// Send along all fields by default.
: Object.keys(file.meta)
const Client = file.remote.providerOptions.provider ? Provider : RequestClient
const client = new Client(this.uppy, file.remote.providerOptions)
return client.post(file.remote.url, {
...file.remote.body,
endpoint: opts.endpoint,
size: file.data.size,
fieldname: opts.fieldName,
metadata: Object.fromEntries(metaFields.map(name => [name, file.meta[name]])),
httpMethod: opts.method,
useFormData: opts.formData,
headers: opts.headers,
}).then(res => new Promise((resolve, reject) => {
const { token } = res
const host = getSocketHost(file.remote.companionUrl)
const socket = new Socket({ target: `${host}/api/${token}`, autoOpen: false })
this.uploaderEvents[file.id] = new EventTracker(this.uppy)
const queuedRequest = this.requests.run(() => {
socket.open()
if (file.isPaused) {
socket.send('pause', {})
}
return () => socket.close()
})
this.#addEventHandlerForFile('file-removed', file.id, () => {
socket.send('pause', {})
queuedRequest.abort()
resolve(`upload ${file.id} was removed`)
})
this.#addEventHandlerIfFileStillExists('cancel-all', file.id, () => {
socket.send('pause', {})
queuedRequest.abort()
resolve(`upload ${file.id} was canceled`)
})
this.#addEventHandlerForFile('upload-retry', file.id, () => {
socket.send('pause', {})
socket.send('resume', {})
})
this.#addEventHandlerIfFileStillExists('retry-all', file.id, () => {
socket.send('pause', {})
socket.send('resume', {})
})
socket.on('progress', (progressData) => emitSocketProgress(this, progressData, file))
socket.on('success', (data) => {
const body = opts.getResponseData(data.response.responseText, data.response)
const uploadURL = body[opts.responseUrlFieldName]
const uploadResp = {
status: data.response.status,
body,
uploadURL,
bytesUploaded: data.bytesUploaded,
}
this.uppy.emit('upload-success', file, uploadResp)
queuedRequest.done()
if (this.uploaderEvents[file.id]) {
this.uploaderEvents[file.id].remove()
this.uploaderEvents[file.id] = null
}
return resolve()
})
socket.on('error', (errData) => {
const resp = errData.response
const error = resp
? opts.getResponseError(resp.responseText, resp)
: Object.assign(new Error(errData.error.message), { cause: errData.error })
this.uppy.emit('upload-error', file, error)
queuedRequest.done()
if (this.uploaderEvents[file.id]) {
this.uploaderEvents[file.id].remove()
this.uploaderEvents[file.id] = null
}
reject(error)
})
}).catch((err) => {
this.uppy.emit('upload-error', file, err)
return Promise.reject(err)
}))
}
}