8 files changed, 25 insertions, 19 deletions
diff --git a/lib/config/default.js b/lib/config/default.js
index 15f11aaa..71375b98 100644
--- a/lib/config/default.js
+++ b/lib/config/default.js
@@ -7,6 +7,7 @@ module.exports = {
   urlPath: '',
   host: '0.0.0.0',
   port: 3000,
+  loglevel: 'info',
   urlAddPort: false,
   allowOrigin: ['localhost'],
   useSSL: false,
diff --git a/lib/config/environment.js b/lib/config/environment.js
index 0c7c9a4f..4220e54d 100644
--- a/lib/config/environment.js
+++ b/lib/config/environment.js
@@ -9,6 +9,7 @@ module.exports = {
   host: process.env.CMD_HOST,
   port: toIntegerConfig(process.env.CMD_PORT),
   path: process.env.CMD_PATH,
+  loglevel: process.env.CMD_LOGLEVEL,
   urlAddPort: toBooleanConfig(process.env.CMD_URL_ADDPORT),
   useSSL: toBooleanConfig(process.env.CMD_USESSL),
   hsts: {
diff --git a/lib/config/index.js b/lib/config/index.js
index 4e1fa50d..c1005b0b 100644
--- a/lib/config/index.js
+++ b/lib/config/index.js
@@ -45,6 +45,12 @@ merge(config, require('./hackmdEnvironment'))
 merge(config, require('./environment'))
 merge(config, require('./dockerSecret'))
 
+if (['debug', 'verbose', 'info', 'warn', 'error'].includes(config.loglevel)) {
+  logger.level = config.loglevel
+} else {
+  logger.error('Selected loglevel %s doesn\'t exist, using default level \'debug\'. Available options: debug, verbose, info, warn, error', config.loglevel)
+}
+
 // load LDAP CA
 if (config.ldap.tlsca) {
   let ca = config.ldap.tlsca.split(',')
diff --git a/lib/logger.js b/lib/logger.js
index f8b3895c..c70b81b8 100644
--- a/lib/logger.js
+++ b/lib/logger.js
@@ -1,23 +1,19 @@
 'use strict'
-const winston = require('winston')
+const {createLogger, format, transports} = require('winston')
 
-class Logger extends winston.Logger {
-  // Implement stream.writable.write interface
-  write (chunk) {
-    this.info(chunk)
-  }
-}
-
-module.exports = new Logger({
+module.exports = createLogger({
+  level: 'debug',
+  format: format.combine(
+    format.uncolorize(),
+    format.timestamp(),
+    format.align(),
+    format.splat(),
+    format.printf(info => `${info.timestamp} ${info.level}: ${info.message}`)
+  ),
   transports: [
-    new winston.transports.Console({
-      level: 'debug',
-      handleExceptions: true,
-      json: false,
-      colorize: false,
-      timestamp: true
+    new transports.Console({
+      handleExceptions: true
     })
   ],
-  emitErrs: true,
   exitOnError: false
 })
diff --git a/lib/models/index.js b/lib/models/index.js
index 0a44ca87..ef70475e 100644
--- a/lib/models/index.js
+++ b/lib/models/index.js
@@ -25,6 +25,7 @@ if (config.dbURL) {
 // https://github.com/sequelize/sequelize/issues/6485
 function stripNullByte (value) {
   value = '' + value
+  // eslint-disable-next-line no-control-regex
   return value ? value.replace(/\u0000/g, '') : value
 }
 sequelize.stripNullByte = stripNullByte
diff --git a/lib/models/user.js b/lib/models/user.js
index 1bd8c745..2ebf6d06 100644
--- a/lib/models/user.js
+++ b/lib/models/user.js
@@ -50,7 +50,7 @@ module.exports = function (sequelize, DataTypes) {
   }, {
     instanceMethods: {
       verifyPassword: function (attempt) {
-        if (scrypt.verifyKdfSync(new Buffer(this.password, 'hex'), attempt)) {
+        if (scrypt.verifyKdfSync(Buffer.from(this.password, 'hex'), attempt)) {
           return this
         } else {
           return false
diff --git a/lib/realtime.js b/lib/realtime.js
index 8541bafa..d04ffdc2 100644
--- a/lib/realtime.js
+++ b/lib/realtime.js
@@ -242,6 +242,7 @@ function getStatus (callback) {
       }
     })
     models.User.count().then(function (regcount) {
+      // eslint-disable-next-line standard/no-callback-literal
       return callback ? callback({
         onlineNotes: Object.keys(notes).length,
         onlineUsers: Object.keys(users).length,
@@ -283,7 +284,7 @@ function extractNoteIdFromSocket (socket) {
     if (!referer) {
       return false
     }
-    var hostUrl = url.parse(referer)
+    var hostUrl = url.URL.parse(referer)
     var noteId = config.urlPath ? hostUrl.pathname.slice(config.urlPath.length + 1, hostUrl.pathname.length).split('/')[1] : hostUrl.pathname.split('/')[1]
     return noteId
   } else {
diff --git a/lib/web/imageRouter/filesystem.js b/lib/web/imageRouter/filesystem.js
index 8c432b0c..a2f8700d 100644
--- a/lib/web/imageRouter/filesystem.js
+++ b/lib/web/imageRouter/filesystem.js
@@ -16,5 +16,5 @@ exports.uploadImage = function (imagePath, callback) {
     return
   }
 
-  callback(null, url.resolve(config.serverURL + '/uploads/', path.basename(imagePath)))
+  callback(null, url.URL.resolve(config.serverURL + '/uploads/', path.basename(imagePath)))
 }