Simplify logging to log only once per http request

services/filestore/app.js

@@ -12,6 +12,8 @@ const fileController = require('./app/js/FileController')
 const keyBuilder = require('./app/js/KeyBuilder')
 const healthCheckController = require('./app/js/HealthCheckController')
 
+const RequestLogger = require('./app/js/RequestLogger')
+
 const app = express()
 
 if (settings.sentry && settings.sentry.dsn) {
@@ -27,6 +29,7 @@ if (Metrics.event_loop) {
 app.use(Metrics.http.monitor(logger))
 app.use(function(req, res, next) {
   Metrics.inc('http-request')
+  res.logInfo = {}
   next()
 })
 
@@ -137,6 +140,9 @@ app.get('/status', function(req, res) {
 
 app.get('/health_check', healthCheckController.check)
 
+app.use(RequestLogger.logRequest)
+app.use(RequestLogger.logError)
+
 const port = settings.internal.filestore.port || 3009
 const host = '0.0.0.0'
 

services/filestore/app/js/Errors.js

@@ -24,6 +24,7 @@ class HealthCheckError extends BackwardCompatibleError {}
 class ConversionsDisabledError extends BackwardCompatibleError {}
 class ConversionError extends BackwardCompatibleError {}
 class SettingsError extends BackwardCompatibleError {}
+class TimeoutError extends BackwardCompatibleError {}
 
 class FailedCommandError extends OError {
   constructor(command, code, stdout, stderr) {
@@ -48,5 +49,6 @@ module.exports = {
   ReadError,
   ConversionError,
   HealthCheckError,
-  SettingsError
+  SettingsError,
+  TimeoutError
 }

services/filestore/app/js/FSPersistorManager.js

@@ -1,6 +1,5 @@
 const fs = require('fs')
 const glob = require('glob')
-const logger = require('logger-sharelatex')
 const path = require('path')
 const rimraf = require('rimraf')
 const Stream = require('stream')
@@ -20,7 +19,6 @@ const filterName = key => key.replace(/\//g, '_')
 
 async function sendFile(location, target, source) {
   const filteredTarget = filterName(target)
-  logger.log({ location, target: filteredTarget, source }, 'sending file')
 
   // actually copy the file (instead of moving it) to maintain consistent behaviour
   // between the different implementations
@@ -39,8 +37,6 @@ async function sendFile(location, target, source) {
 }
 
 async function sendStream(location, target, sourceStream) {
-  logger.log({ location, target }, 'sending file stream')
-
   const fsPath = await LocalFileWriter.writeStream(sourceStream)
 
   try {
@@ -53,13 +49,10 @@ async function sendStream(location, target, sourceStream) {
 // opts may be {start: Number, end: Number}
 async function getFileStream(location, name, opts) {
   const filteredName = filterName(name)
-  logger.log({ location, filteredName }, 'getting file')
 
   try {
     opts.fd = await fsOpen(`${location}/${filteredName}`, 'r')
   } catch (err) {
-    logger.err({ err, location, filteredName: name }, 'Error reading from file')
-
     throw _wrapError(
       err,
       'failed to open file for streaming',
@@ -78,8 +71,6 @@ async function getFileSize(location, filename) {
     const stat = await fsStat(fullPath)
     return stat.size
   } catch (err) {
-    logger.err({ err, location, filename }, 'failed to stat file')
-
     throw _wrapError(
       err,
       'failed to stat file',
@@ -92,7 +83,6 @@ async function getFileSize(location, filename) {
 async function copyFile(location, fromName, toName) {
   const filteredFromName = filterName(fromName)
   const filteredToName = filterName(toName)
-  logger.log({ location, filteredFromName, filteredToName }, 'copying file')
 
   try {
     const sourceStream = fs.createReadStream(`${location}/${filteredFromName}`)
@@ -110,7 +100,6 @@ async function copyFile(location, fromName, toName) {
 
 async function deleteFile(location, name) {
   const filteredName = filterName(name)
-  logger.log({ location, filteredName }, 'delete file')
   try {
     await fsUnlink(`${location}/${filteredName}`)
   } catch (err) {
@@ -127,8 +116,6 @@ async function deleteFile(location, name) {
 async function deleteDirectory(location, name) {
   const filteredName = filterName(name.replace(/\/$/, ''))
 
-  logger.log({ location, filteredName }, 'deleting directory')
-
   try {
     await rmrf(`${location}/${filteredName}`)
   } catch (err) {

services/filestore/app/js/FileController.js

@@ -1,5 +1,4 @@
 const PersistorManager = require('./PersistorManager')
-const logger = require('logger-sharelatex')
 const FileHandler = require('./FileHandler')
 const metrics = require('metrics-sharelatex')
 const parseRange = require('range-parser')
@@ -26,18 +25,17 @@ function getFile(req, res, next) {
     format,
     style
   }
+
   metrics.inc('getFile')
-  logger.log({ key, bucket, format, style }, 'receiving request to get file')
+  res.logMsg = 'getting file'
+  res.logInfo = { key, bucket, format, style, cacheWarm: req.query.cacheWarm }
 
   if (req.headers.range) {
     const range = _getRange(req.headers.range)
     if (range) {
       options.start = range.start
       options.end = range.end
-      logger.log(
-        { start: range.start, end: range.end },
-        'getting range of bytes from file'
-      )
+      res.logInfo.range = range
     }
   }
 
@@ -45,77 +43,88 @@ function getFile(req, res, next) {
     if (err) {
       if (err instanceof Errors.NotFoundError) {
         res.sendStatus(404)
+        res.logInfo.notFound = true
+        next()
       } else {
-        logger.err({ err, key, bucket, format, style }, 'problem getting file')
-        res.sendStatus(500)
+        next(err)
       }
       return
     }
 
     if (req.query.cacheWarm) {
-      logger.log(
-        { key, bucket, format, style },
-        'request is only for cache warm so not sending stream'
-      )
-      return res.sendStatus(200)
+      res.sendStatus(200)
+      return next()
     }
 
-    logger.log({ key, bucket, format, style }, 'sending file to response')
-
     pipeline(fileStream, res, err => {
       if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {
-        logger.err(
+        next(
           new Errors.ReadError({
             message: 'error transferring stream',
             info: { bucket, key, format, style }
           }).withCause(err)
         )
+      } else {
+        next()
       }
     })
   })
 }
 
-function getFileHead(req, res) {
+function getFileHead(req, res, next) {
   const { key, bucket } = req
+
   metrics.inc('getFileSize')
-  logger.log({ key, bucket }, 'receiving request to get file metadata')
+  res.logMsg = 'getting file size'
+  res.logInfo = { key, bucket }
+
   FileHandler.getFileSize(bucket, key, function(err, fileSize) {
     if (err) {
       if (err instanceof Errors.NotFoundError) {
         res.sendStatus(404)
+        res.logInfo.notFound = true
+        next()
       } else {
-        res.sendStatus(500)
+        next(err)
       }
       return
     }
     res.set('Content-Length', fileSize)
     res.status(200).end()
+    next()
   })
 }
 
-function insertFile(req, res) {
+function insertFile(req, res, next) {
   metrics.inc('insertFile')
   const { key, bucket } = req
-  logger.log({ key, bucket }, 'receiving request to insert file')
+
+  res.logMsg = 'inserting file'
+  res.logInfo = { key, bucket }
+
   FileHandler.insertFile(bucket, key, req, function(err) {
     if (err) {
-      logger.log({ err, key, bucket }, 'error inserting file')
-      res.sendStatus(500)
+      next(err)
     } else {
       res.sendStatus(200)
+      next()
     }
   })
 }
 
-function copyFile(req, res) {
+function copyFile(req, res, next) {
   metrics.inc('copyFile')
   const { key, bucket } = req
   const oldProjectId = req.body.source.project_id
   const oldFileId = req.body.source.file_id
-  logger.log(
-    { key, bucket, oldProject_id: oldProjectId, oldFile_id: oldFileId },
-    'receiving request to copy file'
-  )
+
+  req.logInfo = {
+    key,
+    bucket,
+    oldProject_id: oldProjectId,
+    oldFile_id: oldFileId
+  }
+  req.logMsg = 'copying file'
 
   PersistorManager.copyFile(
     bucket,
@@ -125,46 +134,52 @@ function copyFile(req, res) {
       if (err) {
         if (err instanceof Errors.NotFoundError) {
           res.sendStatus(404)
+          res.logInfo.notFound = true
+          next()
         } else {
-          logger.log(
-            { err, oldProject_id: oldProjectId, oldFile_id: oldFileId },
-            'something went wrong copying file'
-          )
-          res.sendStatus(500)
+          next(err)
         }
         return
       }
 
       res.sendStatus(200)
+      next()
     }
   )
 }
 
-function deleteFile(req, res) {
+function deleteFile(req, res, next) {
   metrics.inc('deleteFile')
   const { key, bucket } = req
-  logger.log({ key, bucket }, 'receiving request to delete file')
-  return FileHandler.deleteFile(bucket, key, function(err) {
-    if (err != null) {
-      logger.log({ err, key, bucket }, 'something went wrong deleting file')
-      return res.sendStatus(500)
+
+  req.logInfo = { key, bucket }
+  req.logMsg = 'deleting file'
+
+  FileHandler.deleteFile(bucket, key, function(err) {
+    if (err) {
+      next(err)
     } else {
-      return res.sendStatus(204)
+      res.sendStatus(204)
+      next()
     }
   })
 }
 
-function directorySize(req, res) {
+function directorySize(req, res, next) {
   metrics.inc('projectSize')
   const { project_id: projectId, bucket } = req
-  logger.log({ projectId, bucket }, 'receiving request to project size')
+
+  req.logMsg = 'getting project size'
+  req.logInfo = { projectId, bucket }
+
   FileHandler.getDirectorySize(bucket, projectId, function(err, size) {
     if (err) {
-      logger.log({ err, projectId, bucket }, 'error inserting file')
-      return res.sendStatus(500)
+      return next(err)
     }
 
     res.json({ 'total bytes': size })
+    req.logInfo.size = size
+    next()
   })
 }
 

services/filestore/app/js/FileConverter.js

@@ -1,5 +1,4 @@
 const metrics = require('metrics-sharelatex')
-const logger = require('logger-sharelatex')
 const Settings = require('settings-sharelatex')
 const { callbackify } = require('util')
 
@@ -69,8 +68,6 @@ async function preview(sourcePath) {
 }
 
 async function _convert(sourcePath, requestedFormat, command) {
-  logger.log({ sourcePath, requestedFormat }, 'converting file format')
-
   if (!APPROVED_FORMATS.includes(requestedFormat)) {
     throw new ConversionError({
       message: 'invalid format requested',
@@ -97,9 +94,5 @@ async function _convert(sourcePath, requestedFormat, command) {
   }
 
   timer.done()
-  logger.log(
-    { sourcePath, requestedFormat, destPath },
-    'finished converting file'
-  )
   return destPath
 }

services/filestore/app/js/FileHandler.js

@@ -2,17 +2,11 @@ const { promisify } = require('util')
 const fs = require('fs')
 const PersistorManager = require('./PersistorManager')
 const LocalFileWriter = require('./LocalFileWriter')
-const logger = require('logger-sharelatex')
 const FileConverter = require('./FileConverter')
 const KeyBuilder = require('./KeyBuilder')
 const async = require('async')
 const ImageOptimiser = require('./ImageOptimiser')
-const {
-  WriteError,
-  ReadError,
-  ConversionError,
-  NotFoundError
-} = require('./Errors')
+const { ConversionError } = require('./Errors')
 
 module.exports = {
   insertFile,
@@ -33,7 +27,7 @@ function insertFile(bucket, key, stream, callback) {
   const convertedKey = KeyBuilder.getConvertedFolderKey(key)
   PersistorManager.deleteDirectory(bucket, convertedKey, function(error) {
     if (error) {
-      return callback(new WriteError('error inserting file').withCause(error))
+      return callback(error)
     }
     PersistorManager.sendStream(bucket, key, stream, callback)
   })
@@ -51,13 +45,9 @@ function deleteFile(bucket, key, callback) {
 }
 
 function getFile(bucket, key, opts, callback) {
-  // In this call, opts can contain credentials
-  if (!opts) {
-    opts = {}
-  }
-  logger.log({ bucket, key, opts: _scrubSecrets(opts) }, 'getting file')
+  opts = opts || {}
   if (!opts.format && !opts.style) {
-    _getStandardFile(bucket, key, opts, callback)
+    PersistorManager.getFileStream(bucket, key, opts, callback)
   } else {
     _getConvertedFile(bucket, key, opts, callback)
   }
@@ -68,27 +58,7 @@ function getFileSize(bucket, key, callback) {
 }
 
 function getDirectorySize(bucket, projectId, callback) {
-  logger.log({ bucket, project_id: projectId }, 'getting project size')
-  PersistorManager.directorySize(bucket, projectId, function(err, size) {
-    if (err) {
-      return callback(
-        new ReadError('error getting project size').withCause(err)
-      )
-    }
-    callback(null, size)
-  })
-}
-
-function _getStandardFile(bucket, key, opts, callback) {
-  PersistorManager.getFileStream(bucket, key, opts, function(err, fileStream) {
-    if (err && !(err instanceof NotFoundError)) {
-      logger.err(
-        { bucket, key, opts: _scrubSecrets(opts) },
-        'error getting fileStream'
-      )
-    }
-    callback(err, fileStream)
-  })
+  PersistorManager.directorySize(bucket, projectId, callback)
 }
 
 function _getConvertedFile(bucket, key, opts, callback) {
@@ -124,7 +94,10 @@ function _getConvertedFileAndCache(bucket, key, convertedKey, opts, callback) {
       if (err) {
         LocalFileWriter.deleteFile(convertedFsPath, function() {})
         return callback(
-          new ConversionError('failed to convert file').withCause(err)
+          new ConversionError({
+            message: 'failed to convert file',
+            info: { opts, bucket, key, convertedKey }
+          }).withCause(err)
         )
       }
       // Send back the converted file from the local copy to avoid problems
@@ -152,26 +125,26 @@ function _convertFile(bucket, originalKey, opts, callback) {
   _writeFileToDisk(bucket, originalKey, opts, function(err, originalFsPath) {
     if (err) {
       return callback(
-        new ConversionError('unable to write file to disk').withCause(err)
+        new ConversionError({
+          message: 'unable to write file to disk',
+          info: { bucket, originalKey, opts }
+        }).withCause(err)
       )
     }
 
     const done = function(err, destPath) {
       if (err) {
-        logger.err(
-          { err, bucket, originalKey, opts: _scrubSecrets(opts) },
-          'error converting file'
-        )
         return callback(
-          new ConversionError('error converting file').withCause(err)
+          new ConversionError({
+            message: 'error converting file',
+            info: { bucket, originalKey, opts }
+          }).withCause(err)
         )
       }
       LocalFileWriter.deleteFile(originalFsPath, function() {})
       callback(err, destPath)
     }
 
-    logger.log({ opts }, 'converting file depending on opts')
-
     if (opts.format) {
       FileConverter.convert(originalFsPath, opts.format, done)
     } else if (opts.style === 'thumbnail') {
@@ -180,11 +153,14 @@ function _convertFile(bucket, originalKey, opts, callback) {
       FileConverter.preview(originalFsPath, done)
     } else {
       callback(
-        new ConversionError(
-          `should have specified opts to convert file with ${JSON.stringify(
+        new ConversionError({
+          message: 'invalid file conversion options',
+          info: {
+            bucket,
+            originalKey,
             opts
-          )}`
-        )
+          }
+        })
       )
     }
   })
@@ -193,16 +169,8 @@ function _convertFile(bucket, originalKey, opts, callback) {
 function _writeFileToDisk(bucket, key, opts, callback) {
   PersistorManager.getFileStream(bucket, key, opts, function(err, fileStream) {
     if (err) {
-      return callback(
-        new ReadError('unable to get read stream for file').withCause(err)
-      )
+      return callback(err)
     }
     LocalFileWriter.writeStream(fileStream, key, callback)
   })
 }
-
-function _scrubSecrets(opts) {
-  const safe = Object.assign({}, opts)
-  delete safe.credentials
-  return safe
-}

services/filestore/app/js/HealthCheckController.js

@@ -1,6 +1,5 @@
 const fs = require('fs-extra')
 const path = require('path')
-const logger = require('logger-sharelatex')
 const Settings = require('settings-sharelatex')
 const streamBuffers = require('stream-buffers')
 const { promisify } = require('util')
@@ -60,13 +59,11 @@ async function checkFileConvert() {
 }
 
 module.exports = {
-  check(req, res) {
-    logger.log({}, 'performing health check')
+  check(req, res, next) {
     Promise.all([checkCanGetFiles(), checkFileConvert()])
       .then(() => res.sendStatus(200))
       .catch(err => {
-        logger.err({ err }, 'Health check: error running')
-        res.sendStatus(500)
+        next(err)
       })
   }
 }

services/filestore/app/js/ImageOptimiser.js

@@ -12,8 +12,6 @@ module.exports = {
 
 async function compressPng(localPath, callback) {
   const timer = new metrics.Timer('compressPng')
-  logger.log({ localPath }, 'optimising png path')
-
   const args = ['optipng', localPath]
   const opts = {
     timeout: 30 * 1000,
@@ -23,7 +21,6 @@ async function compressPng(localPath, callback) {
   try {
     await safeExec(args, opts)
     timer.done()
-    logger.log({ localPath }, 'finished compressing png')
   } catch (err) {
     if (err.code === 'SIGKILL') {
       logger.warn(
@@ -31,10 +28,6 @@ async function compressPng(localPath, callback) {
         'optimiser timeout reached'
       )
     } else {
-      logger.err(
-        { err, stderr: err.stderr, localPath },
-        'something went wrong compressing png'
-      )
       throw err
     }
   }

services/filestore/app/js/LocalFileWriter.js

@@ -3,7 +3,6 @@ const uuid = require('node-uuid')
 const path = require('path')
 const Stream = require('stream')
 const { callbackify, promisify } = require('util')
-const logger = require('logger-sharelatex')
 const metrics = require('metrics-sharelatex')
 const Settings = require('settings-sharelatex')
 const { WriteError } = require('./Errors')
@@ -23,18 +22,14 @@ async function writeStream(stream, key) {
   const timer = new metrics.Timer('writingFile')
   const fsPath = _getPath(key)
 
-  logger.log({ fsPath }, 'writing file locally')
-
   const writeStream = fs.createWriteStream(fsPath)
   try {
     await pipeline(stream, writeStream)
     timer.done()
-    logger.log({ fsPath }, 'finished writing file locally')
     return fsPath
   } catch (err) {
     await deleteFile(fsPath)
 
-    logger.err({ err, fsPath }, 'problem writing file locally')
     throw new WriteError({
       message: 'problem writing file locally',
       info: { err, fsPath }
@@ -46,7 +41,6 @@ async function deleteFile(fsPath) {
   if (!fsPath) {
     return
   }
-  logger.log({ fsPath }, 'removing local temp file')
   try {
     await promisify(fs.unlink)(fsPath)
   } catch (err) {

services/filestore/app/js/RequestLogger.js

@@ -0,0 +1,32 @@
+const logger = require('logger-sharelatex')
+
+module.exports = {
+  logRequest,
+  logError
+}
+
+function logRequest(req, res) {
+  // response has already been sent, but we log what happened here
+  logger.log(
+    {
+      info: res.logInfo,
+      url: req.originalUrl,
+      params: req.params
+    },
+    res.logMsg || 'HTTP request'
+  )
+}
+
+function logError(err, req, res, next) {
+  logger.err(
+    {
+      err,
+      info: res.logInfo,
+      url: req.originalUrl,
+      params: req.params,
+      msg: res.logMsg
+    },
+    err.message
+  )
+  next(err) // use the standard error handler to send the response
+}

services/filestore/app/js/S3PersistorManager.js

@@ -4,7 +4,6 @@ http.globalAgent.maxSockets = 300
 https.globalAgent.maxSockets = 300
 
 const settings = require('settings-sharelatex')
-const logger = require('logger-sharelatex')
 const metrics = require('metrics-sharelatex')
 
 const meter = require('stream-meter')
@@ -64,15 +63,13 @@ async function sendStream(bucketName, key, readStream) {
       metrics.count('s3.egress', meteredStream.bytes)
     })
 
-    const response = await _getClientForBucket(bucketName)
+    await _getClientForBucket(bucketName)
       .upload({
         Bucket: bucketName,
         Key: key,
         Body: readStream.pipe(meteredStream)
       })
       .promise()
-
-    logger.log({ response, bucketName, key }, 'data uploaded to s3')
   } catch (err) {
     throw _wrapError(
       err,
@@ -116,7 +113,6 @@ async function getFileStream(bucketName, key, opts) {
 }
 
 async function deleteDirectory(bucketName, key) {
-  logger.log({ key, bucketName }, 'deleting directory')
   let response
 
   try {

services/filestore/app/js/SafeExec.js

@@ -1,5 +1,4 @@
 const _ = require('underscore')
-const logger = require('logger-sharelatex')
 const childProcess = require('child_process')
 const Settings = require('settings-sharelatex')
 const { ConversionsDisabledError, FailedCommandError } = require('./Errors')
@@ -29,27 +28,33 @@ function safeExec(command, options, callback) {
 
   let killTimer
 
+  const cleanup = _.once(function(err) {
+    if (killTimer) {
+      clearTimeout(killTimer)
+    }
+    callback(err, stdout, stderr)
+  })
+
   if (options.timeout) {
     killTimer = setTimeout(function() {
       try {
         // use negative process id to kill process group
         process.kill(-child.pid, options.killSignal || 'SIGTERM')
       } catch (error) {
-        logger.log(
-          { process: child.pid, kill_error: error },
-          'error killing process'
+        cleanup(
+          new FailedCommandError({
+            message: 'failed to kill process after timeout',
+            info: {
+              command,
+              options,
+              pid: child.pid
+            }
+          })
         )
       }
     }, options.timeout)
   }
 
-  const cleanup = _.once(function(err) {
-    if (killTimer) {
-      clearTimeout(killTimer)
-    }
-    callback(err, stdout, stderr)
-  })
-
   child.on('close', function(code, signal) {
     if (code || signal) {
       return cleanup(

services/filestore/test/unit/js/FSPersistorManagerTests.js

@@ -44,10 +44,6 @@ describe('FSPersistorManagerTests', function() {
     FSPersistorManager = SandboxedModule.require(modulePath, {
       requires: {
         './LocalFileWriter': LocalFileWriter,
-        'logger-sharelatex': {
-          log() {},
-          err() {}
-        },
         './Errors': Errors,
         fs,
         glob,

services/filestore/test/unit/js/FileControllerTests.js

@@ -12,6 +12,7 @@ describe('FileController', function() {
     FileController,
     req,
     res,
+    next,
     stream
   const settings = {
     s3: {
@@ -26,6 +27,7 @@ describe('FileController', function() {
   const fileId = 'file_id'
   const bucket = 'user_files'
   const key = `${projectId}/${fileId}`
+  const error = new Error('incorrect utensil')
 
   beforeEach(function() {
     PersistorManager = {
@@ -57,10 +59,6 @@ describe('FileController', function() {
         'settings-sharelatex': settings,
         'metrics-sharelatex': {
           inc() {}
-        },
-        'logger-sharelatex': {
-          log() {},
-          err() {}
         }
       },
       globals: { console }
@@ -82,11 +80,13 @@ describe('FileController', function() {
       sendStatus: sinon.stub().returnsThis(),
       status: sinon.stub().returnsThis()
     }
+
+    next = sinon.stub()
   })
 
   describe('getFile', function() {
     it('should pipe the stream', function() {
-      FileController.getFile(req, res)
+      FileController.getFile(req, res, next)
       expect(stream.pipeline).to.have.been.calledWith(fileStream, res)
     })
 
@@ -96,16 +96,13 @@ describe('FileController', function() {
         statusCode.should.equal(200)
         done()
       }
-      FileController.getFile(req, res)
+      FileController.getFile(req, res, next)
     })
 
-    it('should send a 500 if there is a problem', function(done) {
-      FileHandler.getFile.yields('error')
-      res.sendStatus = code => {
-        code.should.equal(500)
-        done()
-      }
-      FileController.getFile(req, res)
+    it('should send an error if there is a problem', function() {
+      FileHandler.getFile.yields(error)
+      FileController.getFile(req, res, next)
+      expect(next).to.have.been.calledWith(error)
     })
 
     describe('with a range header', function() {
@@ -125,7 +122,7 @@ describe('FileController', function() {
         expectedOptions.start = 0
         expectedOptions.end = 8
 
-        FileController.getFile(req, res)
+        FileController.getFile(req, res, next)
         expect(FileHandler.getFile).to.have.been.calledWith(
           bucket,
           key,
@@ -135,7 +132,7 @@ describe('FileController', function() {
 
       it('should ignore an invalid range header', function() {
         req.headers.range = 'potato'
-        FileController.getFile(req, res)
+        FileController.getFile(req, res, next)
         expect(FileHandler.getFile).to.have.been.calledWith(
           bucket,
           key,
@@ -145,7 +142,7 @@ describe('FileController', function() {
 
       it("should ignore any type other than 'bytes'", function() {
         req.headers.range = 'wombats=0-8'
-        FileController.getFile(req, res)
+        FileController.getFile(req, res, next)
         expect(FileHandler.getFile).to.have.been.calledWith(
           bucket,
           key,
@@ -163,7 +160,7 @@ describe('FileController', function() {
         done()
       }
 
-      FileController.getFileHead(req, res)
+      FileController.getFileHead(req, res, next)
     })
 
     it('should return a 404 is the file is not found', function(done) {
@@ -174,18 +171,14 @@ describe('FileController', function() {
         done()
       }
 
-      FileController.getFileHead(req, res)
+      FileController.getFileHead(req, res, next)
     })
 
-    it('should return a 500 on internal errors', function(done) {
-      FileHandler.getFileSize.yields(new Error())
+    it('should send an error on internal errors', function() {
+      FileHandler.getFileSize.yields(error)
 
-      res.sendStatus = code => {
-        expect(code).to.equal(500)
-        done()
-      }
-
-      FileController.getFileHead(req, res)
+      FileController.getFileHead(req, res, next)
+      expect(next).to.have.been.calledWith(error)
     })
   })
 
@@ -196,7 +189,7 @@ describe('FileController', function() {
         expect(code).to.equal(200)
         done()
       }
-      FileController.insertFile(req, res)
+      FileController.insertFile(req, res, next)
     })
   })
 
@@ -224,7 +217,7 @@ describe('FileController', function() {
         )
         done()
       }
-      FileController.copyFile(req, res)
+      FileController.copyFile(req, res, next)
     })
 
     it('should send a 404 if the original file was not found', function(done) {
@@ -233,16 +226,13 @@ describe('FileController', function() {
         code.should.equal(404)
         done()
       }
-      FileController.copyFile(req, res)
+      FileController.copyFile(req, res, next)
     })
 
-    it('should send a 500 if there was an error', function(done) {
-      PersistorManager.copyFile.yields('error')
-      res.sendStatus = code => {
-        code.should.equal(500)
-        done()
-      }
-      FileController.copyFile(req, res)
+    it('should send an error if there was an error', function() {
+      PersistorManager.copyFile.yields(error)
+      FileController.copyFile(req, res, next)
+      expect(next).to.have.been.calledWith(error)
     })
   })
 
@@ -253,16 +243,13 @@ describe('FileController', function() {
         expect(FileHandler.deleteFile).to.have.been.calledWith(bucket, key)
         done()
       }
-      FileController.deleteFile(req, res)
+      FileController.deleteFile(req, res, next)
     })
 
-    it('should send a 500 if there was an error', function(done) {
-      FileHandler.deleteFile.yields('error')
-      res.sendStatus = code => {
-        code.should.equal(500)
-        done()
-      }
-      FileController.deleteFile(req, res)
+    it('should send a 500 if there was an error', function() {
+      FileHandler.deleteFile.yields(error)
+      FileController.deleteFile(req, res, next)
+      expect(next).to.have.been.calledWith(error)
     })
   })
 
@@ -276,13 +263,10 @@ describe('FileController', function() {
       })
     })
 
-    it('should send a 500 if there was an error', function(done) {
-      FileHandler.getDirectorySize.callsArgWith(2, 'error')
-      res.sendStatus = code => {
-        code.should.equal(500)
-        done()
-      }
-      FileController.directorySize(req, res)
+    it('should send a 500 if there was an error', function() {
+      FileHandler.getDirectorySize.yields(error)
+      FileController.directorySize(req, res, next)
+      expect(next).to.have.been.calledWith(error)
     })
   })
 })

services/filestore/test/unit/js/FileConverterTests.js

@@ -25,10 +25,6 @@ describe('FileConverter', function() {
     FileConverter = SandboxedModule.require(modulePath, {
       requires: {
         './SafeExec': SafeExec,
-        'logger-sharelatex': {
-          log() {},
-          err() {}
-        },
         'metrics-sharelatex': {
           inc: sinon.stub(),
           Timer: sinon.stub().returns({ done: sinon.stub() })

services/filestore/test/unit/js/FileHandlerTests.js

@@ -67,11 +67,7 @@ describe('FileHandler', function() {
         './FileConverter': FileConverter,
         './KeyBuilder': KeyBuilder,
         './ImageOptimiser': ImageOptimiser,
-        fs: fs,
-        'logger-sharelatex': {
-          log() {},
-          err() {}
-        }
+        fs: fs
       },
       globals: { console }
     })

services/filestore/test/unit/js/ImageOptimiserTests.js

@@ -6,21 +6,20 @@ const { FailedCommandError } = require('../../../app/js/Errors')
 const SandboxedModule = require('sandboxed-module')
 
 describe('ImageOptimiser', function() {
-  let ImageOptimiser, SafeExec
+  let ImageOptimiser, SafeExec, logger
   const sourcePath = '/wombat/potato.eps'
 
   beforeEach(function() {
     SafeExec = {
       promises: sinon.stub().resolves()
     }
+    logger = {
+      warn: sinon.stub()
+    }
     ImageOptimiser = SandboxedModule.require(modulePath, {
       requires: {
         './SafeExec': SafeExec,
-        'logger-sharelatex': {
-          log() {},
-          err() {},
-          warn() {}
-        }
+        'logger-sharelatex': logger
       }
     })
   })
@@ -47,13 +46,23 @@ describe('ImageOptimiser', function() {
   })
 
   describe('when optimiser is sigkilled', function() {
-    it('should not produce an error', function(done) {
-      const error = new FailedCommandError('', 'SIGKILL', '', '')
-      SafeExec.promises.rejects(error)
+    const expectedError = new FailedCommandError('', 'SIGKILL', '', '')
+    let error
+
+    beforeEach(function(done) {
+      SafeExec.promises.rejects(expectedError)
       ImageOptimiser.compressPng(sourcePath, err => {
-        expect(err).not.to.exist
+        error = err
         done()
       })
     })
+
+    it('should not produce an error', function() {
+      expect(error).not.to.exist
+    })
+
+    it('should log a warning', function() {
+      expect(logger.warn).to.have.been.calledOnce
+    })
   })
 })

services/filestore/test/unit/js/KeybuilderTests.js

@@ -7,14 +7,7 @@ describe('LocalFileWriter', function() {
   const key = 'wombat/potato'
 
   beforeEach(function() {
-    KeyBuilder = SandboxedModule.require(modulePath, {
-      requires: {
-        'logger-sharelatex': {
-          log() {},
-          err() {}
-        }
-      }
-    })
+    KeyBuilder = SandboxedModule.require(modulePath)
   })
 
   describe('cachedKey', function() {

services/filestore/test/unit/js/LocalFileWriterTests.js

@@ -26,10 +26,6 @@ describe('LocalFileWriter', function() {
       requires: {
         fs,
         stream,
-        'logger-sharelatex': {
-          log() {},
-          err() {}
-        },
         'settings-sharelatex': settings,
         'metrics-sharelatex': {
           inc: sinon.stub(),

services/filestore/test/unit/js/S3PersistorManagerTests.js

@@ -122,10 +122,6 @@ describe('S3PersistorManagerTests', function() {
         './Errors': Errors,
         fs: Fs,
         'stream-meter': Meter,
-        'logger-sharelatex': {
-          log() {},
-          err() {}
-        },
         'metrics-sharelatex': Metrics
       },
       globals: { console }

services/filestore/test/unit/js/SafeExecTests.js

@@ -13,10 +13,6 @@ describe('SafeExec', function() {
 
     safeExec = SandboxedModule.require(modulePath, {
       requires: {
-        'logger-sharelatex': {
-          log() {},
-          err() {}
-        },
         'settings-sharelatex': settings
       }
     })