import * as Bluebird from 'bluebird'
-import { createWriteStream } from 'fs'
+import { createWriteStream, remove } from 'fs-extra'
import * as request from 'request'
-import { ACTIVITY_PUB } from '../initializers'
+import { ACTIVITY_PUB } from '../initializers/constants'
+import { processImage } from './image-utils'
+import { join } from 'path'
+import { logger } from './logger'
+import { CONFIG } from '../initializers/config'
-function doRequest (
- requestOptions: request.CoreOptions & request.UriOptions & { activityPub?: boolean }
-): Bluebird<{ response: request.RequestResponse, body: any }> {
+function doRequest <T> (
+ requestOptions: request.CoreOptions & request.UriOptions & { activityPub?: boolean },
+ bodyKBLimit = 1000 // 1MB
+): Bluebird<{ response: request.RequestResponse, body: T }> {
if (requestOptions.activityPub === true) {
if (!Array.isArray(requestOptions.headers)) requestOptions.headers = {}
requestOptions.headers['accept'] = ACTIVITY_PUB.ACCEPT_HEADER
}
- return new Bluebird<{ response: request.RequestResponse, body: any }>((res, rej) => {
+ return new Bluebird<{ response: request.RequestResponse, body: T }>((res, rej) => {
request(requestOptions, (err, response, body) => err ? rej(err) : res({ response, body }))
+ .on('data', onRequestDataLengthCheck(bodyKBLimit))
})
}
-function doRequestAndSaveToFile (requestOptions: request.CoreOptions & request.UriOptions, destPath: string) {
+function doRequestAndSaveToFile (
+ requestOptions: request.CoreOptions & request.UriOptions,
+ destPath: string,
+ bodyKBLimit = 10000 // 10MB
+) {
return new Bluebird<void>((res, rej) => {
const file = createWriteStream(destPath)
file.on('finish', () => res())
request(requestOptions)
- .on('error', err => rej(err))
+ .on('data', onRequestDataLengthCheck(bodyKBLimit))
+ .on('error', err => {
+ file.close()
+
+ remove(destPath)
+ .catch(err => logger.error('Cannot remove %s after request failure.', destPath, { err }))
+
+ return rej(err)
+ })
.pipe(file)
})
}
+async function downloadImage (url: string, destDir: string, destName: string, size: { width: number, height: number }) {
+ const tmpPath = join(CONFIG.STORAGE.TMP_DIR, 'pending-' + destName)
+ await doRequestAndSaveToFile({ method: 'GET', uri: url }, tmpPath)
+
+ const destPath = join(destDir, destName)
+
+ try {
+ await processImage(tmpPath, destPath, size)
+ } catch (err) {
+ await remove(tmpPath)
+
+ throw err
+ }
+}
+
// ---------------------------------------------------------------------------
export {
doRequest,
- doRequestAndSaveToFile
+ doRequestAndSaveToFile,
+ downloadImage
+}
+
+// ---------------------------------------------------------------------------
+
+// Thanks to https://github.com/request/request/issues/2470#issuecomment-268929907 <3
+function onRequestDataLengthCheck (bodyKBLimit: number) {
+ let bufferLength = 0
+ const bytesLimit = bodyKBLimit * 1000
+
+ return function (chunk) {
+ bufferLength += chunk.length
+ if (bufferLength > bytesLimit) {
+ this.abort()
+
+ const error = new Error(`Response was too large - aborted after ${bytesLimit} bytes.`)
+ this.emit('error', error)
+ }
+ }
}