Don't expose constants directly in initializers/

[github/Chocobozzz/PeerTube.git] / server / helpers / requests.ts

diff --git a/server/helpers/requests.ts b/server/helpers/requests.ts
index b40fc8e39083101de377f64c70a9c60f35348e0f..60c94da81160d327df6fc9f3e02c829eef9b11fa 100644 (file)
--- a/server/helpers/requests.ts
+++ b/server/helpers/requests.ts
@@ -1,78 +1,80 @@
-import * as replay from 'request-replay'
+import * as Bluebird from 'bluebird'
+import { createWriteStream, remove } from 'fs-extra'
 import * as request from 'request'
+import { ACTIVITY_PUB } from '../initializers/constants'
+import { processImage } from './image-utils'
+import { join } from 'path'
+import { logger } from './logger'
+import { CONFIG } from '../initializers/config'
 
-import {
-  RETRY_REQUESTS,
-  REMOTE_SCHEME,
-  CONFIG
-} from '../initializers'
-import { PodInstance } from '../models'
-import { sign } from './peertube-crypto'
-
-type MakeRetryRequestParams = {
-  url: string,
-  method: 'GET'|'POST',
-  json: Object
-}
-function makeRetryRequest (params: MakeRetryRequestParams, callback: request.RequestCallback) {
-  replay(
-    request(params, callback),
-    {
-      retries: RETRY_REQUESTS,
-      factor: 3,
-      maxTimeout: Infinity,
-      errorCodes: [ 'EADDRINFO', 'ETIMEDOUT', 'ECONNRESET', 'ESOCKETTIMEDOUT', 'ENOTFOUND', 'ECONNREFUSED' ]
-    }
-  )
-}
+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
+  }
 
-type MakeSecureRequestParams = {
-  method: 'GET'|'POST'
-  toPod: PodInstance
-  path: string
-  sign: boolean
-  data?: Object
+  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 makeSecureRequest (params: MakeSecureRequestParams, callback: request.RequestCallback) {
-  const requestParams = {
-    url: REMOTE_SCHEME.HTTP + '://' + params.toPod.host + params.path,
-    json: {}
-  }
 
-  if (params.method !== 'POST') {
-    return callback(new Error('Cannot make a secure request with a non POST method.'), null, null)
-  }
+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())
 
-  // Add signature if it is specified in the params
-  if (params.sign === true) {
-    const host = CONFIG.WEBSERVER.HOST
+    request(requestOptions)
+      .on('data', onRequestDataLengthCheck(bodyKBLimit))
+      .on('error', err => {
+        file.close()
 
-    let dataToSign
-    if (params.data) {
-      dataToSign = params.data
-    } else {
-      // We do not have data to sign so we just take our host
-      // It is not ideal but the connection should be in HTTPS
-      dataToSign = host
-    }
+        remove(destPath)
+          .catch(err => logger.error('Cannot remove %s after request failure.', destPath, { err }))
 
-    requestParams.json['signature'] = {
-      host, // Which host we pretend to be
-      signature: sign(dataToSign)
-    }
-  }
+        return rej(err)
+      })
+      .pipe(file)
+  })
+}
 
-  // If there are data informations
-  if (params.data) {
-    requestParams.json['data'] = params.data
-  }
+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)
 
-  request.post(requestParams, callback)
+  const destPath = join(destDir, destName)
+  await processImage({ path: tmpPath }, destPath, size)
 }
 
 // ---------------------------------------------------------------------------
 
 export {
-  makeRetryRequest,
-  makeSecureRequest
+  doRequest,
+  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)
+    }
+  }
 }