Linter: Fix all lint errors

Signed-off-by: Philip Molares <philip.molares@udo.edu>

19 files changed, 86 insertions, 66 deletions

diff --git a/lib/web/auth/dropbox/index.js b/lib/web/auth/dropbox/index.js
index aef011cb..c35f04e3 100644
--- a/lib/web/auth/dropbox/index.js
+++ b/lib/web/auth/dropbox/index.js
@@ -6,7 +6,7 @@ const DropboxStrategy = require('passport-dropbox-oauth2').Strategy
 const config = require('../../../config')
 const { passportGeneralCallback } = require('../utils')
 
-let dropboxAuth = module.exports = Router()
+const dropboxAuth = module.exports = Router()
 
 passport.use(new DropboxStrategy({
   apiVersion: '2',
diff --git a/lib/web/auth/email/index.js b/lib/web/auth/email/index.js
index 78ca933b..74922966 100644
--- a/lib/web/auth/email/index.js
+++ b/lib/web/auth/email/index.js
@@ -10,7 +10,7 @@ const logger = require('../../../logger')
 const { urlencodedParser } = require('../../utils')
 const errors = require('../../../errors')
 
-let emailAuth = module.exports = Router()
+const emailAuth = module.exports = Router()
 
 passport.use(new LocalStrategy({
   usernameField: 'email'
diff --git a/lib/web/auth/facebook/index.js b/lib/web/auth/facebook/index.js
index 0ba948bb..acf566eb 100644
--- a/lib/web/auth/facebook/index.js
+++ b/lib/web/auth/facebook/index.js
@@ -7,7 +7,7 @@ const FacebookStrategy = require('passport-facebook').Strategy
 const config = require('../../../config')
 const { passportGeneralCallback } = require('../utils')
 
-let facebookAuth = module.exports = Router()
+const facebookAuth = module.exports = Router()
 
 passport.use(new FacebookStrategy({
   clientID: config.facebook.clientID,
diff --git a/lib/web/auth/github/index.js b/lib/web/auth/github/index.js
index 3a3a84c6..c7f7e5d1 100644
--- a/lib/web/auth/github/index.js
+++ b/lib/web/auth/github/index.js
@@ -7,7 +7,7 @@ const config = require('../../../config')
 const response = require('../../../response')
 const { passportGeneralCallback } = require('../utils')
 
-let githubAuth = module.exports = Router()
+const githubAuth = module.exports = Router()
 
 passport.use(new GithubStrategy({
   clientID: config.github.clientID,
diff --git a/lib/web/auth/gitlab/index.js b/lib/web/auth/gitlab/index.js
index 1b628e81..11579bd1 100644
--- a/lib/web/auth/gitlab/index.js
+++ b/lib/web/auth/gitlab/index.js
@@ -7,7 +7,7 @@ const config = require('../../../config')
 const response = require('../../../response')
 const { passportGeneralCallback } = require('../utils')
 
-let gitlabAuth = module.exports = Router()
+const gitlabAuth = module.exports = Router()
 
 passport.use(new GitlabStrategy({
   baseURL: config.gitlab.baseURL,
diff --git a/lib/web/auth/google/index.js b/lib/web/auth/google/index.js
index 6edf07a9..0262dedf 100644
--- a/lib/web/auth/google/index.js
+++ b/lib/web/auth/google/index.js
@@ -2,11 +2,11 @@
 
 const Router = require('express').Router
 const passport = require('passport')
-var GoogleStrategy = require('passport-google-oauth20').Strategy
+const GoogleStrategy = require('passport-google-oauth20').Strategy
 const config = require('../../../config')
 const { passportGeneralCallback } = require('../utils')
 
-let googleAuth = module.exports = Router()
+const googleAuth = module.exports = Router()
 
 passport.use(new GoogleStrategy({
   clientID: config.google.clientID,
diff --git a/lib/web/auth/ldap/index.js b/lib/web/auth/ldap/index.js
index b501106d..4142194f 100644
--- a/lib/web/auth/ldap/index.js
+++ b/lib/web/auth/ldap/index.js
@@ -9,7 +9,7 @@ const logger = require('../../../logger')
 const { urlencodedParser } = require('../../utils')
 const errors = require('../../../errors')
 
-let ldapAuth = module.exports = Router()
+const ldapAuth = module.exports = Router()
 
 passport.use(new LDAPStrategy({
   server: {
@@ -22,7 +22,7 @@ passport.use(new LDAPStrategy({
     tlsOptions: config.ldap.tlsOptions || null
   }
 }, function (user, done) {
-  var uuid = user.uidNumber || user.uid || user.sAMAccountName || undefined
+  let uuid = user.uidNumber || user.uid || user.sAMAccountName || undefined
   if (config.ldap.useridField && user[config.ldap.useridField]) {
     uuid = user[config.ldap.useridField]
   }
@@ -34,12 +34,12 @@ passport.use(new LDAPStrategy({
     '"useridField" option in ldap settings.')
   }
 
-  var username = uuid
+  let username = uuid
   if (config.ldap.usernameField && user[config.ldap.usernameField]) {
     username = user[config.ldap.usernameField]
   }
 
-  var profile = {
+  const profile = {
     id: 'LDAP-' + uuid,
     username: username,
     displayName: user.displayName,
@@ -48,7 +48,7 @@ passport.use(new LDAPStrategy({
     profileUrl: null,
     provider: 'ldap'
   }
-  var stringifiedProfile = JSON.stringify(profile)
+  const stringifiedProfile = JSON.stringify(profile)
   models.User.findOrCreate({
     where: {
       profileid: profile.id.toString()
@@ -58,7 +58,7 @@ passport.use(new LDAPStrategy({
     }
   }).spread(function (user, created) {
     if (user) {
-      var needSave = false
+      let needSave = false
       if (user.profile !== stringifiedProfile) {
         user.profile = stringifiedProfile
         needSave = true
diff --git a/lib/web/auth/mattermost/index.js b/lib/web/auth/mattermost/index.js
index 78eca2af..2f15c812 100644
--- a/lib/web/auth/mattermost/index.js
+++ b/lib/web/auth/mattermost/index.js
@@ -9,9 +9,9 @@ const { passportGeneralCallback } = require('../utils')
 
 const mattermost = new Mattermost.Client()
 
-let mattermostAuth = module.exports = Router()
+const mattermostAuth = module.exports = Router()
 
-let mattermostStrategy = new OAuthStrategy({
+const mattermostStrategy = new OAuthStrategy({
   authorizationURL: config.mattermost.baseURL + '/oauth/authorize',
   tokenURL: config.mattermost.baseURL + '/oauth/access_token',
   clientID: config.mattermost.clientID,
diff --git a/lib/web/auth/oauth2/index.js b/lib/web/auth/oauth2/index.js
index 9cb17f26..e9032e0b 100644
--- a/lib/web/auth/oauth2/index.js
+++ b/lib/web/auth/oauth2/index.js
@@ -7,7 +7,7 @@ const config = require('../../../config')
 const logger = require('../../../logger')
 const { passportGeneralCallback } = require('../utils')
 
-let oauth2Auth = module.exports = Router()
+const oauth2Auth = module.exports = Router()
 
 class OAuth2CustomStrategy extends Strategy {
   constructor (options, verify) {
@@ -20,7 +20,7 @@ class OAuth2CustomStrategy extends Strategy {
 
   userProfile (accessToken, done) {
     this._oauth2.get(this._userProfileURL, accessToken, function (err, body, res) {
-      var json
+      let json
 
       if (err) {
         return done(new InternalOAuthError('Failed to fetch user profile', err))
@@ -33,7 +33,7 @@ class OAuth2CustomStrategy extends Strategy {
       }
 
       checkAuthorization(json, done)
-      let profile = parseProfile(json)
+      const profile = parseProfile(json)
       profile.provider = 'oauth2'
 
       done(null, profile)
@@ -91,7 +91,7 @@ function checkAuthorization (data, done) {
 
 OAuth2CustomStrategy.prototype.userProfile = function (accessToken, done) {
   this._oauth2.get(this._userProfileURL, accessToken, function (err, body, res) {
-    var json
+    let json
 
     if (err) {
       return done(new InternalOAuthError('Failed to fetch user profile', err))
@@ -104,7 +104,7 @@ OAuth2CustomStrategy.prototype.userProfile = function (accessToken, done) {
     }
 
     checkAuthorization(json, done)
-    let profile = parseProfile(json)
+    const profile = parseProfile(json)
     profile.provider = 'oauth2'
 
     done(null, profile)
diff --git a/lib/web/auth/openid/index.js b/lib/web/auth/openid/index.js
index 28e164f5..84d0970c 100644
--- a/lib/web/auth/openid/index.js
+++ b/lib/web/auth/openid/index.js
@@ -8,14 +8,14 @@ const models = require('../../../models')
 const logger = require('../../../logger')
 const { urlencodedParser } = require('../../utils')
 
-let openIDAuth = module.exports = Router()
+const openIDAuth = module.exports = Router()
 
 passport.use(new OpenIDStrategy({
   returnURL: config.serverURL + '/auth/openid/callback',
   realm: config.serverURL,
   profile: true
 }, function (openid, profile, done) {
-  var stringifiedProfile = JSON.stringify(profile)
+  const stringifiedProfile = JSON.stringify(profile)
   models.User.findOrCreate({
     where: {
       profileid: openid
@@ -25,7 +25,7 @@ passport.use(new OpenIDStrategy({
     }
   }).spread(function (user, created) {
     if (user) {
-      var needSave = false
+      let needSave = false
       if (user.profile !== stringifiedProfile) {
         user.profile = stringifiedProfile
         needSave = true
diff --git a/lib/web/auth/saml/index.js b/lib/web/auth/saml/index.js
index c48b93e2..deb04007 100644
--- a/lib/web/auth/saml/index.js
+++ b/lib/web/auth/saml/index.js
@@ -10,19 +10,21 @@ const { urlencodedParser } = require('../../utils')
 const fs = require('fs')
 const intersection = function (array1, array2) { return array1.filter((n) => array2.includes(n)) }
 
-let samlAuth = module.exports = Router()
+const samlAuth = module.exports = Router()
 
 passport.use(new SamlStrategy({
   callbackUrl: config.serverURL + '/auth/saml/callback',
   entryPoint: config.saml.idpSsoUrl,
   issuer: config.saml.issuer || config.serverURL,
-  privateCert: config.saml.clientCert === undefined ? undefined : (function () {
-    try {
-      return fs.readFileSync(config.saml.clientCert, 'utf-8')
-    } catch (e) {
-      logger.error(`SAML client certificate: ${e.message}`)
-    }
-  }()),
+  privateCert: config.saml.clientCert === undefined
+    ? undefined
+    : (function () {
+        try {
+          return fs.readFileSync(config.saml.clientCert, 'utf-8')
+        } catch (e) {
+          logger.error(`SAML client certificate: ${e.message}`)
+        }
+      }()),
   cert: (function () {
     try {
       return fs.readFileSync(config.saml.idpCert, 'utf-8')
@@ -36,7 +38,7 @@ passport.use(new SamlStrategy({
 }, function (user, done) {
   // check authorization if needed
   if (config.saml.externalGroups && config.saml.groupAttribute) {
-    var externalGroups = intersection(config.saml.externalGroups, user[config.saml.groupAttribute])
+    const externalGroups = intersection(config.saml.externalGroups, user[config.saml.groupAttribute])
     if (externalGroups.length > 0) {
       logger.error('saml permission denied: ' + externalGroups.join(', '))
       return done('Permission denied', null)
@@ -49,8 +51,8 @@ passport.use(new SamlStrategy({
     }
   }
   // user creation
-  var uuid = user[config.saml.attribute.id] || user.nameID
-  var profile = {
+  const uuid = user[config.saml.attribute.id] || user.nameID
+  const profile = {
     provider: 'saml',
     id: 'SAML-' + uuid,
     username: user[config.saml.attribute.username] || user.nameID,
@@ -59,7 +61,7 @@ passport.use(new SamlStrategy({
   if (profile.emails.length === 0 && config.saml.identifierFormat === 'urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress') {
     profile.emails.push(user.nameID)
   }
-  var stringifiedProfile = JSON.stringify(profile)
+  const stringifiedProfile = JSON.stringify(profile)
   models.User.findOrCreate({
     where: {
       profileid: profile.id.toString()
@@ -69,7 +71,7 @@ passport.use(new SamlStrategy({
     }
   }).spread(function (user, created) {
     if (user) {
-      var needSave = false
+      let needSave = false
       if (user.profile !== stringifiedProfile) {
         user.profile = stringifiedProfile
         needSave = true
diff --git a/lib/web/auth/twitter/index.js b/lib/web/auth/twitter/index.js
index 56389f84..76744e09 100644
--- a/lib/web/auth/twitter/index.js
+++ b/lib/web/auth/twitter/index.js
@@ -7,7 +7,7 @@ const TwitterStrategy = require('passport-twitter').Strategy
 const config = require('../../../config')
 const { passportGeneralCallback } = require('../utils')
 
-let twitterAuth = module.exports = Router()
+const twitterAuth = module.exports = Router()
 
 passport.use(new TwitterStrategy({
   consumerKey: config.twitter.consumerKey,
diff --git a/lib/web/auth/utils.js b/lib/web/auth/utils.js
index fb69f08c..bb69f15f 100644
--- a/lib/web/auth/utils.js
+++ b/lib/web/auth/utils.js
@@ -4,7 +4,7 @@ const models = require('../../models')
 const logger = require('../../logger')
 
 exports.passportGeneralCallback = function callback (accessToken, refreshToken, profile, done) {
-  var stringifiedProfile = JSON.stringify(profile)
+  const stringifiedProfile = JSON.stringify(profile)
   models.User.findOrCreate({
     where: {
       profileid: profile.id.toString()
@@ -16,7 +16,7 @@ exports.passportGeneralCallback = function callback (accessToken, refreshToken,
     }
   }).spread(function (user, created) {
     if (user) {
-      var needSave = false
+      let needSave = false
       if (user.profile !== stringifiedProfile) {
         user.profile = stringifiedProfile
         needSave = true
diff --git a/lib/web/imageRouter/azure.js b/lib/web/imageRouter/azure.js
index 22ee5585..c56ac860 100644
--- a/lib/web/imageRouter/azure.js
+++ b/lib/web/imageRouter/azure.js
@@ -17,7 +17,7 @@ exports.uploadImage = function (imagePath, callback) {
     return
   }
 
-  var azureBlobService = azure.createBlobService(config.azure.connectionString)
+  const azureBlobService = azure.createBlobService(config.azure.connectionString)
 
   azureBlobService.createContainerIfNotExists(config.azure.container, { publicAccessLevel: 'blob' }, function (err, result, response) {
     if (err) {
diff --git a/lib/web/imageRouter/index.js b/lib/web/imageRouter/index.js
index afa9bbf6..0a72c65c 100644
--- a/lib/web/imageRouter/index.js
+++ b/lib/web/imageRouter/index.js
@@ -12,20 +12,28 @@ const config = require('../../config')
 const logger = require('../../logger')
 const errors = require('../../errors')
 
-const imageRouter = module.exports = Router()
+const imageRouter = (module.exports = Router())
 
 async function checkUploadType (filePath) {
   const typeFromMagic = await FileType.fromFile(filePath)
   if (typeFromMagic === undefined) {
-    logger.error(`Image upload error: Could not determine MIME-type`)
+    logger.error('Image upload error: Could not determine MIME-type')
     return false
   }
   if (path.extname(filePath) !== '.' + typeFromMagic.ext) {
-    logger.error(`Image upload error: Provided file extension does not match MIME-type`)
+    logger.error(
+      'Image upload error: Provided file extension does not match MIME-type'
+    )
     return false
   }
   if (!config.allowedUploadMimeTypes.includes(typeFromMagic.mime)) {
-    logger.error(`Image upload error: MIME-type "${typeFromMagic.mime}" of uploaded file not allowed, only "${config.allowedUploadMimeTypes.join(', ')}" are allowed`)
+    logger.error(
+      `Image upload error: MIME-type "${
+        typeFromMagic.mime
+      }" of uploaded file not allowed, only "${config.allowedUploadMimeTypes.join(
+        ', '
+      )}" are allowed`
+    )
     return false
   }
   return true
@@ -33,12 +41,18 @@ async function checkUploadType (filePath) {
 
 // upload image
 imageRouter.post('/uploadimage', function (req, res) {
-  if (!req.isAuthenticated() && !config.allowAnonymous && !config.allowAnonymousEdits) {
-    logger.error(`Image upload error: Anonymous edits and therefore uploads are not allowed)`)
+  if (
+    !req.isAuthenticated() &&
+    !config.allowAnonymous &&
+    !config.allowAnonymousEdits
+  ) {
+    logger.error(
+      'Image upload error: Anonymous edits and therefore uploads are not allowed'
+    )
     return errors.errorForbidden(res)
   }
 
-  var form = new formidable.IncomingForm()
+  const form = new formidable.IncomingForm()
   form.keepExtensions = true
   const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'hedgedoc-'))
   form.uploadDir = tmpDir
@@ -49,17 +63,21 @@ imageRouter.post('/uploadimage', function (req, res) {
       rimraf(tmpDir)
       return errors.errorForbidden(res)
     } else if (!files.image || !files.image.path) {
-      logger.error(`Image upload error: Upload didn't contain file)`)
+      logger.error("Image upload error: Upload didn't contain file)")
       rimraf.sync(tmpDir)
       return errors.errorBadRequest(res)
-    } else if (!await checkUploadType(files.image.path)) {
+    } else if (!(await checkUploadType(files.image.path))) {
       rimraf.sync(tmpDir)
       return errors.errorBadRequest(res)
     } else {
-      logger.debug(`SERVER received uploadimage: ${JSON.stringify(files.image)}`)
+      logger.debug(
+        `SERVER received uploadimage: ${JSON.stringify(files.image)}`
+      )
 
       const uploadProvider = require('./' + config.imageUploadType)
-      logger.debug(`imageRouter: Uploading ${files.image.path} using ${config.imageUploadType}`)
+      logger.debug(
+        `imageRouter: Uploading ${files.image.path} using ${config.imageUploadType}`
+      )
       uploadProvider.uploadImage(files.image.path, function (err, url) {
         rimraf.sync(tmpDir)
         if (err !== null) {
diff --git a/lib/web/imageRouter/minio.js b/lib/web/imageRouter/minio.js
index 91de5ff1..3ced94e2 100644
--- a/lib/web/imageRouter/minio.js
+++ b/lib/web/imageRouter/minio.js
@@ -32,16 +32,16 @@ exports.uploadImage = function (imagePath, callback) {
       return
     }
 
-    let key = path.join('uploads', path.basename(imagePath))
-    let protocol = config.minio.secure ? 'https' : 'http'
+    const key = path.join('uploads', path.basename(imagePath))
+    const protocol = config.minio.secure ? 'https' : 'http'
 
     minioClient.putObject(config.s3bucket, key, buffer, buffer.size, getImageMimeType(imagePath), function (err, data) {
       if (err) {
         callback(new Error(err), null)
         return
       }
-      let hidePort = [80, 443].includes(config.minio.port)
-      let urlPort = hidePort ? '' : `:${config.minio.port}`
+      const hidePort = [80, 443].includes(config.minio.port)
+      const urlPort = hidePort ? '' : `:${config.minio.port}`
       callback(null, `${protocol}://${config.minio.endPoint}${urlPort}/${config.s3bucket}/${key}`)
     })
   })
diff --git a/lib/web/imageRouter/s3.js b/lib/web/imageRouter/s3.js
index 2bf08cc7..5bb8e160 100644
--- a/lib/web/imageRouter/s3.js
+++ b/lib/web/imageRouter/s3.js
@@ -26,7 +26,7 @@ exports.uploadImage = function (imagePath, callback) {
       callback(new Error(err), null)
       return
     }
-    let params = {
+    const params = {
       Bucket: config.s3bucket,
       Key: path.join('uploads', path.basename(imagePath)),
       Body: buffer
diff --git a/lib/web/statusRouter.js b/lib/web/statusRouter.js
index febe2df3..d939a3fe 100644
--- a/lib/web/statusRouter.js
+++ b/lib/web/statusRouter.js
@@ -25,11 +25,11 @@ statusRouter.get('/status', function (req, res, next) {
 })
 // get status
 statusRouter.get('/temp', function (req, res) {
-  var host = req.get('host')
+  const host = req.get('host')
   if (config.allowOrigin.indexOf(host) === -1) {
     errors.errorForbidden(res)
   } else {
-    var tempid = req.query.tempid
+    const tempid = req.query.tempid
     if (!tempid) {
       errors.errorForbidden(res)
     } else {
@@ -60,11 +60,11 @@ statusRouter.get('/temp', function (req, res) {
 })
 // post status
 statusRouter.post('/temp', urlencodedParser, function (req, res) {
-  var host = req.get('host')
+  const host = req.get('host')
   if (config.allowOrigin.indexOf(host) === -1) {
     errors.errorForbidden(res)
   } else {
-    var data = req.body.data
+    const data = req.body.data
     if (!data) {
       errors.errorForbidden(res)
     } else {
@@ -90,7 +90,7 @@ statusRouter.post('/temp', urlencodedParser, function (req, res) {
 })
 
 statusRouter.get('/config', function (req, res) {
-  var data = {
+  const data = {
     domain: config.domain,
     urlpath: config.urlPath,
     debug: config.debug,
diff --git a/lib/web/userRouter.js b/lib/web/userRouter.js
index f1f999f1..117668fa 100644
--- a/lib/web/userRouter.js
+++ b/lib/web/userRouter.js
@@ -21,7 +21,7 @@ UserRouter.get('/me', function (req, res) {
       }
     }).then(function (user) {
       if (!user) { return errors.errorNotFound(res) }
-      var profile = models.User.getProfile(user)
+      const profile = models.User.getProfile(user)
       res.send({
         status: 'ok',
         id: req.user.id,
@@ -70,7 +70,7 @@ UserRouter.get('/me/delete/:token?', function (req, res) {
 UserRouter.get('/me/export', function (req, res) {
   if (req.isAuthenticated()) {
     // let output = fs.createWriteStream(__dirname + '/example.zip');
-    let archive = archiver('zip', {
+    const archive = archiver('zip', {
       zlib: { level: 3 } // Sets the compression level.
     })
     res.setHeader('Content-Type', 'application/zip')
@@ -90,13 +90,13 @@ UserRouter.get('/me/export', function (req, res) {
           ownerId: user.id
         }
       }).then(function (notes) {
-        let filenames = {}
+        const filenames = {}
         async.each(notes, function (note, callback) {
-          let basename = note.title.replace(/\//g, '-') // Prevent subdirectories
+          const basename = note.title.replace(/\//g, '-') // Prevent subdirectories
           let filename
           let suffix = ''
           do {
-            let seperator = typeof suffix === 'number' ? '-' : ''
+            const seperator = typeof suffix === 'number' ? '-' : ''
             filename = basename + seperator + suffix + '.md'
             suffix++
           } while (filenames[filename])