forked from actions/toolkit
/
upload-http-client.ts
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/
upload-http-client.ts
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import * as fs from 'fs'
import * as core from '@actions/core'
import * as tmp from 'tmp-promise'
import * as stream from 'stream'
import {
ArtifactResponse,
CreateArtifactParameters,
PatchArtifactSize,
UploadResults
} from './contracts'
import {
getArtifactUrl,
getContentRange,
getUploadHeaders,
isRetryableStatusCode,
isSuccessStatusCode,
isThrottledStatusCode,
displayHttpDiagnostics,
getExponentialRetryTimeInMilliseconds,
tryGetRetryAfterValueTimeInMilliseconds,
getProperRetention,
sleep
} from './utils'
import {
getUploadChunkSize,
getUploadFileConcurrency,
getRetryLimit,
getRetentionDays
} from './config-variables'
import {promisify} from 'util'
import {URL} from 'url'
import {performance} from 'perf_hooks'
import {StatusReporter} from './status-reporter'
import {HttpCodes} from '@actions/http-client'
import {IHttpClientResponse} from '@actions/http-client/interfaces'
import {HttpManager} from './http-manager'
import {UploadSpecification} from './upload-specification'
import {UploadOptions} from './upload-options'
import {createGZipFileOnDisk, createGZipFileInBuffer} from './upload-gzip'
import {retryHttpClientRequest} from './requestUtils'
const stat = promisify(fs.stat)
export class UploadHttpClient {
private uploadHttpManager: HttpManager
private statusReporter: StatusReporter
constructor() {
this.uploadHttpManager = new HttpManager(
getUploadFileConcurrency(),
'@actions/artifact-upload'
)
this.statusReporter = new StatusReporter(10000)
}
/**
* Creates a file container for the new artifact in the remote blob storage/file service
* @param {string} artifactName Name of the artifact being created
* @returns The response from the Artifact Service if the file container was successfully created
*/
async createArtifactInFileContainer(
artifactName: string,
options?: UploadOptions | undefined
): Promise<ArtifactResponse> {
const parameters: CreateArtifactParameters = {
Type: 'actions_storage',
Name: artifactName
}
// calculate retention period
if (options && options.retentionDays) {
const maxRetentionStr = getRetentionDays()
parameters.RetentionDays = getProperRetention(
options.retentionDays,
maxRetentionStr
)
}
const data: string = JSON.stringify(parameters, null, 2)
const artifactUrl = getArtifactUrl()
// use the first client from the httpManager, `keep-alive` is not used so the connection will close immediately
const client = this.uploadHttpManager.getClient(0)
const headers = getUploadHeaders('application/json', false)
// Extra information to display when a particular HTTP code is returned
// If a 403 is returned when trying to create a file container, the customer has exceeded
// their storage quota so no new artifact containers can be created
const customErrorMessages: Map<number, string> = new Map([
[
HttpCodes.Forbidden,
'Artifact storage quota has been hit. Unable to upload any new artifacts'
],
[
HttpCodes.BadRequest,
`The artifact name ${artifactName} is not valid. Request URL ${artifactUrl}`
]
])
const response = await retryHttpClientRequest(
'Create Artifact Container',
async () => client.post(artifactUrl, data, headers),
customErrorMessages
)
const body: string = await response.readBody()
return JSON.parse(body)
}
/**
* Concurrently upload all of the files in chunks
* @param {string} uploadUrl Base Url for the artifact that was created
* @param {SearchResult[]} filesToUpload A list of information about the files being uploaded
* @returns The size of all the files uploaded in bytes
*/
async uploadArtifactToFileContainer(
uploadUrl: string,
filesToUpload: UploadSpecification[],
options?: UploadOptions
): Promise<UploadResults> {
const FILE_CONCURRENCY = getUploadFileConcurrency()
const MAX_CHUNK_SIZE = getUploadChunkSize()
core.debug(
`File Concurrency: ${FILE_CONCURRENCY}, and Chunk Size: ${MAX_CHUNK_SIZE}`
)
const parameters: UploadFileParameters[] = []
// by default, file uploads will continue if there is an error unless specified differently in the options
let continueOnError = true
if (options) {
if (options.continueOnError === false) {
continueOnError = false
}
}
// prepare the necessary parameters to upload all the files
for (const file of filesToUpload) {
const resourceUrl = new URL(uploadUrl)
resourceUrl.searchParams.append('itemPath', file.uploadFilePath)
parameters.push({
file: file.absoluteFilePath,
resourceUrl: resourceUrl.toString(),
maxChunkSize: MAX_CHUNK_SIZE,
continueOnError
})
}
const parallelUploads = [...new Array(FILE_CONCURRENCY).keys()]
const failedItemsToReport: string[] = []
let currentFile = 0
let completedFiles = 0
let uploadFileSize = 0
let totalFileSize = 0
let abortPendingFileUploads = false
this.statusReporter.setTotalNumberOfFilesToProcess(filesToUpload.length)
this.statusReporter.start()
// only allow a certain amount of files to be uploaded at once, this is done to reduce potential errors
await Promise.all(
parallelUploads.map(async index => {
while (currentFile < filesToUpload.length) {
const currentFileParameters = parameters[currentFile]
currentFile += 1
if (abortPendingFileUploads) {
failedItemsToReport.push(currentFileParameters.file)
continue
}
const startTime = performance.now()
const uploadFileResult = await this.uploadFileAsync(
index,
currentFileParameters
)
if (core.isDebug()) {
core.debug(
`File: ${++completedFiles}/${filesToUpload.length}. ${
currentFileParameters.file
} took ${(performance.now() - startTime).toFixed(
3
)} milliseconds to finish upload`
)
}
uploadFileSize += uploadFileResult.successfulUploadSize
totalFileSize += uploadFileResult.totalSize
if (uploadFileResult.isSuccess === false) {
failedItemsToReport.push(currentFileParameters.file)
if (!continueOnError) {
// fail fast
core.error(`aborting artifact upload`)
abortPendingFileUploads = true
}
}
this.statusReporter.incrementProcessedCount()
}
})
)
this.statusReporter.stop()
// done uploading, safety dispose all connections
this.uploadHttpManager.disposeAndReplaceAllClients()
core.info(`Total size of all the files uploaded is ${uploadFileSize} bytes`)
return {
uploadSize: uploadFileSize,
totalSize: totalFileSize,
failedItems: failedItemsToReport
}
}
/**
* Asynchronously uploads a file. The file is compressed and uploaded using GZip if it is determined to save space.
* If the upload file is bigger than the max chunk size it will be uploaded via multiple calls
* @param {number} httpClientIndex The index of the httpClient that is being used to make all of the calls
* @param {UploadFileParameters} parameters Information about the file that needs to be uploaded
* @returns The size of the file that was uploaded in bytes along with any failed uploads
*/
private async uploadFileAsync(
httpClientIndex: number,
parameters: UploadFileParameters
): Promise<UploadFileResult> {
const fileStat: fs.Stats = await stat(parameters.file)
const totalFileSize = fileStat.size
const isFIFO = fileStat.isFIFO()
let offset = 0
let isUploadSuccessful = true
let failedChunkSizes = 0
let uploadFileSize = 0
let isGzip = true
// the file that is being uploaded is less than 64k in size to increase throughput and to minimize disk I/O
// for creating a new GZip file, an in-memory buffer is used for compression
// with named pipes the file size is reported as zero in that case don't read the file in memory
if (!isFIFO && totalFileSize < 65536) {
core.debug(
`${parameters.file} is less than 64k in size. Creating a gzip file in-memory to potentially reduce the upload size`
)
const buffer = await createGZipFileInBuffer(parameters.file)
// An open stream is needed in the event of a failure and we need to retry. If a NodeJS.ReadableStream is directly passed in,
// it will not properly get reset to the start of the stream if a chunk upload needs to be retried
let openUploadStream: () => NodeJS.ReadableStream
if (totalFileSize < buffer.byteLength) {
// compression did not help with reducing the size, use a readable stream from the original file for upload
core.debug(
`The gzip file created for ${parameters.file} did not help with reducing the size of the file. The original file will be uploaded as-is`
)
openUploadStream = () => fs.createReadStream(parameters.file)
isGzip = false
uploadFileSize = totalFileSize
} else {
// create a readable stream using a PassThrough stream that is both readable and writable
core.debug(
`A gzip file created for ${parameters.file} helped with reducing the size of the original file. The file will be uploaded using gzip.`
)
openUploadStream = () => {
const passThrough = new stream.PassThrough()
passThrough.end(buffer)
return passThrough
}
uploadFileSize = buffer.byteLength
}
const result = await this.uploadChunk(
httpClientIndex,
parameters.resourceUrl,
openUploadStream,
0,
uploadFileSize - 1,
uploadFileSize,
isGzip,
totalFileSize
)
if (!result) {
// chunk failed to upload
isUploadSuccessful = false
failedChunkSizes += uploadFileSize
core.warning(`Aborting upload for ${parameters.file} due to failure`)
}
return {
isSuccess: isUploadSuccessful,
successfulUploadSize: uploadFileSize - failedChunkSizes,
totalSize: totalFileSize
}
} else {
// the file that is being uploaded is greater than 64k in size, a temporary file gets created on disk using the
// npm tmp-promise package and this file gets used to create a GZipped file
const tempFile = await tmp.file()
core.debug(
`${parameters.file} is greater than 64k in size. Creating a gzip file on-disk ${tempFile.path} to potentially reduce the upload size`
)
// create a GZip file of the original file being uploaded, the original file should not be modified in any way
uploadFileSize = await createGZipFileOnDisk(
parameters.file,
tempFile.path
)
let uploadFilePath = tempFile.path
// compression did not help with size reduction, use the original file for upload and delete the temp GZip file
// for named pipes totalFileSize is zero, this assumes compression did help
if (!isFIFO && totalFileSize < uploadFileSize) {
core.debug(
`The gzip file created for ${parameters.file} did not help with reducing the size of the file. The original file will be uploaded as-is`
)
uploadFileSize = totalFileSize
uploadFilePath = parameters.file
isGzip = false
} else {
core.debug(
`The gzip file created for ${parameters.file} is smaller than the original file. The file will be uploaded using gzip.`
)
}
let abortFileUpload = false
// upload only a single chunk at a time
while (offset < uploadFileSize) {
const chunkSize = Math.min(
uploadFileSize - offset,
parameters.maxChunkSize
)
const startChunkIndex = offset
const endChunkIndex = offset + chunkSize - 1
offset += parameters.maxChunkSize
if (abortFileUpload) {
// if we don't want to continue in the event of an error, any pending upload chunks will be marked as failed
failedChunkSizes += chunkSize
continue
}
const result = await this.uploadChunk(
httpClientIndex,
parameters.resourceUrl,
() =>
fs.createReadStream(uploadFilePath, {
start: startChunkIndex,
end: endChunkIndex,
autoClose: false
}),
startChunkIndex,
endChunkIndex,
uploadFileSize,
isGzip,
totalFileSize
)
if (!result) {
// Chunk failed to upload, report as failed and do not continue uploading any more chunks for the file. It is possible that part of a chunk was
// successfully uploaded so the server may report a different size for what was uploaded
isUploadSuccessful = false
failedChunkSizes += chunkSize
core.warning(`Aborting upload for ${parameters.file} due to failure`)
abortFileUpload = true
} else {
// if an individual file is greater than 8MB (1024*1024*8) in size, display extra information about the upload status
if (uploadFileSize > 8388608) {
this.statusReporter.updateLargeFileStatus(
parameters.file,
startChunkIndex,
endChunkIndex,
uploadFileSize
)
}
}
}
// Delete the temporary file that was created as part of the upload. If the temp file does not get manually deleted by
// calling cleanup, it gets removed when the node process exits. For more info see: https://www.npmjs.com/package/tmp-promise#about
core.debug(`deleting temporary gzip file ${tempFile.path}`)
await tempFile.cleanup()
return {
isSuccess: isUploadSuccessful,
successfulUploadSize: uploadFileSize - failedChunkSizes,
totalSize: totalFileSize
}
}
}
/**
* Uploads a chunk of an individual file to the specified resourceUrl. If the upload fails and the status code
* indicates a retryable status, we try to upload the chunk as well
* @param {number} httpClientIndex The index of the httpClient being used to make all the necessary calls
* @param {string} resourceUrl Url of the resource that the chunk will be uploaded to
* @param {NodeJS.ReadableStream} openStream Stream of the file that will be uploaded
* @param {number} start Starting byte index of file that the chunk belongs to
* @param {number} end Ending byte index of file that the chunk belongs to
* @param {number} uploadFileSize Total size of the file in bytes that is being uploaded
* @param {boolean} isGzip Denotes if we are uploading a Gzip compressed stream
* @param {number} totalFileSize Original total size of the file that is being uploaded
* @returns if the chunk was successfully uploaded
*/
private async uploadChunk(
httpClientIndex: number,
resourceUrl: string,
openStream: () => NodeJS.ReadableStream,
start: number,
end: number,
uploadFileSize: number,
isGzip: boolean,
totalFileSize: number
): Promise<boolean> {
// prepare all the necessary headers before making any http call
const headers = getUploadHeaders(
'application/octet-stream',
true,
isGzip,
totalFileSize,
end - start + 1,
getContentRange(start, end, uploadFileSize)
)
const uploadChunkRequest = async (): Promise<IHttpClientResponse> => {
const client = this.uploadHttpManager.getClient(httpClientIndex)
return await client.sendStream('PUT', resourceUrl, openStream(), headers)
}
let retryCount = 0
const retryLimit = getRetryLimit()
// Increments the current retry count and then checks if the retry limit has been reached
// If there have been too many retries, fail so the download stops
const incrementAndCheckRetryLimit = (
response?: IHttpClientResponse
): boolean => {
retryCount++
if (retryCount > retryLimit) {
if (response) {
displayHttpDiagnostics(response)
}
core.info(
`Retry limit has been reached for chunk at offset ${start} to ${resourceUrl}`
)
return true
}
return false
}
const backOff = async (retryAfterValue?: number): Promise<void> => {
this.uploadHttpManager.disposeAndReplaceClient(httpClientIndex)
if (retryAfterValue) {
core.info(
`Backoff due to too many requests, retry #${retryCount}. Waiting for ${retryAfterValue} milliseconds before continuing the upload`
)
await sleep(retryAfterValue)
} else {
const backoffTime = getExponentialRetryTimeInMilliseconds(retryCount)
core.info(
`Exponential backoff for retry #${retryCount}. Waiting for ${backoffTime} milliseconds before continuing the upload at offset ${start}`
)
await sleep(backoffTime)
}
core.info(
`Finished backoff for retry #${retryCount}, continuing with upload`
)
return
}
// allow for failed chunks to be retried multiple times
while (retryCount <= retryLimit) {
let response: IHttpClientResponse
try {
response = await uploadChunkRequest()
} catch (error) {
// if an error is caught, it is usually indicative of a timeout so retry the upload
core.info(
`An error has been caught http-client index ${httpClientIndex}, retrying the upload`
)
// eslint-disable-next-line no-console
console.log(error)
if (incrementAndCheckRetryLimit()) {
return false
}
await backOff()
continue
}
// Always read the body of the response. There is potential for a resource leak if the body is not read which will
// result in the connection remaining open along with unintended consequences when trying to dispose of the client
await response.readBody()
if (isSuccessStatusCode(response.message.statusCode)) {
return true
} else if (isRetryableStatusCode(response.message.statusCode)) {
core.info(
`A ${response.message.statusCode} status code has been received, will attempt to retry the upload`
)
if (incrementAndCheckRetryLimit(response)) {
return false
}
isThrottledStatusCode(response.message.statusCode)
? await backOff(
tryGetRetryAfterValueTimeInMilliseconds(response.message.headers)
)
: await backOff()
} else {
core.error(
`Unexpected response. Unable to upload chunk to ${resourceUrl}`
)
displayHttpDiagnostics(response)
return false
}
}
return false
}
/**
* Updates the size of the artifact from -1 which was initially set when the container was first created for the artifact.
* Updating the size indicates that we are done uploading all the contents of the artifact
*/
async patchArtifactSize(size: number, artifactName: string): Promise<void> {
const resourceUrl = new URL(getArtifactUrl())
resourceUrl.searchParams.append('artifactName', artifactName)
const parameters: PatchArtifactSize = {Size: size}
const data: string = JSON.stringify(parameters, null, 2)
core.debug(`URL is ${resourceUrl.toString()}`)
// use the first client from the httpManager, `keep-alive` is not used so the connection will close immediately
const client = this.uploadHttpManager.getClient(0)
const headers = getUploadHeaders('application/json', false)
// Extra information to display when a particular HTTP code is returned
const customErrorMessages: Map<number, string> = new Map([
[
HttpCodes.NotFound,
`An Artifact with the name ${artifactName} was not found`
]
])
// TODO retry for all possible response codes, the artifact upload is pretty much complete so it at all costs we should try to finish this
const response = await retryHttpClientRequest(
'Finalize artifact upload',
async () => client.patch(resourceUrl.toString(), data, headers),
customErrorMessages
)
await response.readBody()
core.debug(
`Artifact ${artifactName} has been successfully uploaded, total size in bytes: ${size}`
)
}
}
interface UploadFileParameters {
file: string
resourceUrl: string
maxChunkSize: number
continueOnError: boolean
}
interface UploadFileResult {
isSuccess: boolean
successfulUploadSize: number
totalSize: number
}