Change config to camel case with backwards compatibility

This refactors the configs a bit to now use camel case everywhere. This change should help to clean up the config interface and make it better understandable. Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>
2018-03-07 15:17:35 +01:00 · 2018-03-07 15:17:35 +01:00 · 2411dffa2c
parent fa4a8418af
commit 2411dffa2c
29 changed files with 290 additions and 237 deletions
--- a/README.md
+++ b/README.md
@ -147,7 +147,7 @@ There are some config settings you need to change in the files below.
 | `HMD_URL_ADDPORT` | `true` or `false` | set to add port on callback URL (ports `80` or `443` won't be applied) (only applied when domain is set) |
 | `HMD_USECDN` | `true` or `false` | set to use CDN resources or not (default is `true`) |
 | `HMD_ALLOW_ANONYMOUS` | `true` or `false` | set to allow anonymous usage (default is `true`) |
-| `HMD_ALLOW_ANONYMOUS_EDITS` | `true` or `false` | if `allowanonymous` is `true`, allow users to select `freely` permission, allowing guests to edit existing notes (default is `false`) |
+| `HMD_ALLOW_ANONYMOUS_EDITS` | `true` or `false` | if `allowAnonymous` is `true`, allow users to select `freely` permission, allowing guests to edit existing notes (default is `false`) |
 | `HMD_ALLOW_FREEURL` | `true` or `false` | set to allow new note creation by accessing a nonexistent note URL |
 | `HMD_DEFAULT_PERMISSION` | `freely`, `editable`, `limited`, `locked` or `private` | set notes default permission (only applied on signed users) |
 | `HMD_DB_URL` | `mysql://localhost:3306/database` | set the database URL |
@ -215,46 +215,46 @@ There are some config settings you need to change in the files below.
 | --------- | ------ | ----------- |
 | `debug` | `true` or `false` | set debug mode, show more logs |
 | `domain` | `localhost` | domain name |
-| `urlpath` | `hackmd` | sub URL path, like `www.example.com/<urlpath>` |
+| `urlPath` | `hackmd` | sub URL path, like `www.example.com/<urlpath>` |
 | `port` | `80` | web app port |
-| `alloworigin` | `['localhost']` | domain name whitelist |
-| `usessl` | `true` or `false` | set to use SSL server (if `true`, will auto turn on `protocolusessl`) |
+| `allowOrigin` | `['localhost']` | domain name whitelist |
+| `useSSL` | `true` or `false` | set to use SSL server (if `true`, will auto turn on `protocolUseSSL`) |
 | `hsts` | `{"enable": true, "maxAgeSeconds": 31536000, "includeSubdomains": true, "preload": true}` | [HSTS](https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security) options to use with HTTPS (default is the example value, max age is a year) |
-| `csp` | `{"enable": true, "directives": {"scriptSrc": "trustworthy-scripts.example.com"}, "upgradeInsecureRequests": "auto", "addDefaults": true}` | Configures [Content Security Policy](https://helmetjs.github.io/docs/csp/). Directives are passed to Helmet - see [their documentation](https://helmetjs.github.io/docs/csp/) for more information on the format. Some defaults are added to the configured values so that the application doesn't break. To disable this behaviour, set `addDefaults` to `false`. Further, if `usecdn` is on, some CDN locations are allowed too. By default (`auto`), insecure (HTTP) requests are upgraded to HTTPS via CSP if `usessl` is on. To change this behaviour, set `upgradeInsecureRequests` to either `true` or `false`. |
-| `protocolusessl` | `true` or `false` | set to use SSL protocol for resources path (only applied when domain is set) |
-| `urladdport` | `true` or `false` | set to add port on callback URL (ports `80` or `443` won't be applied) (only applied when domain is set) |
-| `usecdn` | `true` or `false` | set to use CDN resources or not (default is `true`) |
-| `allowanonymous` | `true` or `false` | set to allow anonymous usage (default is `true`) |
-| `allowanonymousedits` | `true` or `false` | if `allowanonymous` is `true`: allow users to select `freely` permission, allowing guests to edit existing notes (default is `false`) |
-| `allowfreeurl` | `true` or `false` | set to allow new note creation by accessing a nonexistent note URL |
-| `defaultpermission` | `freely`, `editable`, `limited`, `locked`, `protected` or `private` | set notes default permission (only applied on signed users) |
-| `dburl` | `mysql://localhost:3306/database` | set the db URL; if set, then db config (below) won't be applied |
+| `csp` | `{"enable": true, "directives": {"scriptSrc": "trustworthy-scripts.example.com"}, "upgradeInsecureRequests": "auto", "addDefaults": true}` | Configures [Content Security Policy](https://helmetjs.github.io/docs/csp/). Directives are passed to Helmet - see [their documentation](https://helmetjs.github.io/docs/csp/) for more information on the format. Some defaults are added to the configured values so that the application doesn't break. To disable this behaviour, set `addDefaults` to `false`. Further, if `usecdn` is on, some CDN locations are allowed too. By default (`auto`), insecure (HTTP) requests are upgraded to HTTPS via CSP if `useSSL` is on. To change this behaviour, set `upgradeInsecureRequests` to either `true` or `false`. |
+| `protocolUseSSL` | `true` or `false` | set to use SSL protocol for resources path (only applied when domain is set) |
+| `urlAddPort` | `true` or `false` | set to add port on callback URL (ports `80` or `443` won't be applied) (only applied when domain is set) |
+| `useCDN` | `true` or `false` | set to use CDN resources or not (default is `true`) |
+| `allowAnonymous` | `true` or `false` | set to allow anonymous usage (default is `true`) |
+| `allowAnonymousEdits` | `true` or `false` | if `allowAnonymous` is `true`: allow users to select `freely` permission, allowing guests to edit existing notes (default is `false`) |
+| `allowFreeURL` | `true` or `false` | set to allow new note creation by accessing a nonexistent note URL |
+| `defaultPermission` | `freely`, `editable`, `limited`, `locked`, `protected` or `private` | set notes default permission (only applied on signed users) |
+| `dbURL` | `mysql://localhost:3306/database` | set the db URL; if set, then db config (below) won't be applied |
 | `db` | `{ "dialect": "sqlite", "storage": "./db.hackmd.sqlite" }` | set the db configs, [see more here](http://sequelize.readthedocs.org/en/latest/api/sequelize/) |
-| `sslkeypath` | `./cert/client.key` | SSL key path (only need when you set `usessl`) |
-| `sslcertpath` | `./cert/hackmd_io.crt` | SSL cert path (only need when you set `usessl`) |
-| `sslcapath` | `['./cert/COMODORSAAddTrustCA.crt']` | SSL ca chain (only need when you set `usessl`) |
-| `dhparampath` | `./cert/dhparam.pem` | SSL dhparam path (only need when you set `usessl`) |
-| `tmppath` | `./tmp/` | temp directory path |
-| `defaultnotepath` | `./public/default.md` | default note file path |
-| `docspath` | `./public/docs` | docs directory path |
-| `indexpath` | `./public/views/index.ejs` | index template file path |
-| `hackmdpath` | `./public/views/hackmd.ejs` | hackmd template file path |
-| `errorpath` | `./public/views/error.ejs` | error template file path |
-| `prettypath` | `./public/views/pretty.ejs` | pretty template file path |
-| `slidepath` | `./public/views/slide.hbs` | slide template file path |
-| `sessionname` | `connect.sid` | cookie session name |
-| `sessionsecret` | `secret` | cookie session secret |
-| `sessionlife` | `14 * 24 * 60 * 60 * 1000` | cookie session life |
-| `staticcachetime` | `1 * 24 * 60 * 60 * 1000` | static file cache time |
-| `heartbeatinterval` | `5000` | socket.io heartbeat interval |
-| `heartbeattimeout` | `10000` | socket.io heartbeat timeout |
-| `documentmaxlength` | `100000` | note max length |
+| `sslKeyPath` | `./cert/client.key` | SSL key path (only need when you set `useSSL`) |
+| `sslCertPath` | `./cert/hackmd_io.crt` | SSL cert path (only need when you set `useSSL`) |
+| `sslCAPath` | `['./cert/COMODORSAAddTrustCA.crt']` | SSL ca chain (only need when you set `useSSL`) |
+| `dhParamPath` | `./cert/dhparam.pem` | SSL dhparam path (only need when you set `useSSL`) |
+| `tmpPath` | `./tmp/` | temp directory path |
+| `defaultNotePath` | `./public/default.md` | default note file path |
+| `docsPath` | `./public/docs` | docs directory path |
+| `indexPath` | `./public/views/index.ejs` | index template file path |
+| `hackmdPath` | `./public/views/hackmd.ejs` | hackmd template file path |
+| `errorPath` | `./public/views/error.ejs` | error template file path |
+| `prettyPath` | `./public/views/pretty.ejs` | pretty template file path |
+| `slidePath` | `./public/views/slide.hbs` | slide template file path |
+| `sessionName` | `connect.sid` | cookie session name |
+| `sessionSecret` | `secret` | cookie session secret |
+| `sessionLife` | `14 * 24 * 60 * 60 * 1000` | cookie session life |
+| `staticCacheTime` | `1 * 24 * 60 * 60 * 1000` | static file cache time |
+| `heartbeatInterval` | `5000` | socket.io heartbeat interval |
+| `heartbeatTimeout` | `10000` | socket.io heartbeat timeout |
+| `documentMaxLength` | `100000` | note max length |
 | `email` | `true` or `false` | set to allow email signin |
-| `allowemailregister`  | `true` or `false` | set to allow email register (only applied when email is set, default is `true`. Note `bin/manage_users` might help you if registration is `false`.) |
-| `imageuploadtype` | `imgur`(default), `s3`, `minio` or `filesystem` | Where to upload image
-| `minio` | `{ "accessKey": "YOUR_MINIO_ACCESS_KEY", "secretKey": "YOUR_MINIO_SECRET_KEY", "endpoint": "YOUR_MINIO_HOST", port: 9000, secure: true }` | When `imageuploadtype` is set to `minio`, you need to set this key. Also checkout our [Minio Image Upload Guide](docs/guides/minio-image-upload.md) |
+| `allowEmailRegister`  | `true` or `false` | set to allow email register (only applied when email is set, default is `true`. Note `bin/manage_users` might help you if registration is `false`.) |
+| `imageUploadType` | `imgur`(default), `s3`, `minio` or `filesystem` | Where to upload image
+| `minio` | `{ "accessKey": "YOUR_MINIO_ACCESS_KEY", "secretKey": "YOUR_MINIO_SECRET_KEY", "endpoint": "YOUR_MINIO_HOST", port: 9000, secure: true }` | When `imageUploadType` is set to `minio`, you need to set this key. Also checkout our [Minio Image Upload Guide](docs/guides/minio-image-upload.md) |
 | `s3` | `{ "accessKeyId": "YOUR_S3_ACCESS_KEY_ID", "secretAccessKey": "YOUR_S3_ACCESS_KEY", "region": "YOUR_S3_REGION" }` | When `imageuploadtype` be set to `s3`, you would also need to setup this key, check our [S3 Image Upload Guide](docs/guides/s3-image-upload.md) |
-| `s3bucket` | `YOUR_S3_BUCKET_NAME` | bucket name when `imageuploadtype` is set to `s3` or `minio` |
+| `s3bucket` | `YOUR_S3_BUCKET_NAME` | bucket name when `imageUploadType` is set to `s3` or `minio` |

 ## Third-party integration API key settings

--- a/app.js
+++ b/app.js
@ -30,7 +30,7 @@ var csp = require('./lib/csp')
 var constpath = path.join(__dirname, './public/js/lib/common/constant.ejs')
 var data = {
  domain: config.domain,
-  urlpath: config.urlpath,
+  urlpath: config.urlPath,
  debug: config.debug,
  version: config.version,
  GOOGLE_API_KEY: config.google.clientSecret,
@ -47,20 +47,20 @@ ejs.renderFile(constpath, data, {}, function (err, str) {
 // server setup
 var app = express()
 var server = null
-if (config.usessl) {
+if (config.useSSL) {
  var ca = (function () {
    var i, len, results
    results = []
-    for (i = 0, len = config.sslcapath.length; i < len; i++) {
-      results.push(fs.readFileSync(config.sslcapath[i], 'utf8'))
+    for (i = 0, len = config.sslCAPath.length; i < len; i++) {
+      results.push(fs.readFileSync(config.sslCAPath[i], 'utf8'))
    }
    return results
  })()
  var options = {
-    key: fs.readFileSync(config.sslkeypath, 'utf8'),
-    cert: fs.readFileSync(config.sslcertpath, 'utf8'),
+    key: fs.readFileSync(config.sslKeyPath, 'utf8'),
+    cert: fs.readFileSync(config.sslCertPath, 'utf8'),
    ca: ca,
-    dhparam: fs.readFileSync(config.dhparampath, 'utf8'),
+    dhparam: fs.readFileSync(config.dhParamPath, 'utf8'),
    requestCert: false,
    rejectUnauthorized: false
  }
@ -105,7 +105,7 @@ if (config.hsts.enable) {
    includeSubdomains: config.hsts.includeSubdomains,
    preload: config.hsts.preload
  }))
-} else if (config.usessl) {
+} else if (config.useSSL) {
  logger.info('Consider enabling HSTS for extra security:')
  logger.info('https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security')
 }
@ -142,17 +142,17 @@ app.use(i18n.init)

 // routes without sessions
 // static files
-app.use('/', express.static(path.join(__dirname, '/public'), { maxAge: config.staticcachetime }))
+app.use('/', express.static(path.join(__dirname, '/public'), { maxAge: config.staticCacheTime }))

 // session
 app.use(session({
-  name: config.sessionname,
-  secret: config.sessionsecret,
+  name: config.sessionName,
+  secret: config.sessionSecret,
  resave: false, // don't save session if unmodified
  saveUninitialized: true, // always create session to ensure the origin
  rolling: true, // reset maxAge on every response
  cookie: {
-    maxAge: config.sessionlife
+    maxAge: config.sessionLife
  },
  store: sessionStore
 }))
@ -207,22 +207,22 @@ io.use(realtime.secure)
 // socket.io auth
 io.use(passportSocketIo.authorize({
  cookieParser: cookieParser,
-  key: config.sessionname,
-  secret: config.sessionsecret,
+  key: config.sessionName,
+  secret: config.sessionSecret,
  store: sessionStore,
  success: realtime.onAuthorizeSuccess,
  fail: realtime.onAuthorizeFail
 }))
 // socket.io heartbeat
-io.set('heartbeat interval', config.heartbeatinterval)
-io.set('heartbeat timeout', config.heartbeattimeout)
+io.set('heartbeat interval', config.heartbeatInterval)
+io.set('heartbeat timeout', config.heartbeatTimeout)
 // socket.io connection
 io.sockets.on('connection', realtime.connection)

 // listen
 function startListen () {
  server.listen(config.port, function () {
-    var schema = config.usessl ? 'HTTPS' : 'HTTP'
+    var schema = config.useSSL ? 'HTTPS' : 'HTTP'
    logger.info('%s Server listening at port %d', schema, config.port)
    realtime.maintenance = false
  })
--- a/lib/config/default.js
+++ b/lib/config/default.js
@ -2,11 +2,11 @@

 module.exports = {
  domain: '',
-  urlpath: '',
+  urlPath: '',
  port: 3000,
-  urladdport: false,
-  alloworigin: ['localhost'],
-  usessl: false,
+  urlAddPort: false,
+  allowOrigin: ['localhost'],
+  useSSL: false,
  hsts: {
    enable: true,
    maxAgeSeconds: 31536000,
@ -21,42 +21,40 @@ module.exports = {
    upgradeInsecureRequests: 'auto',
    reportURI: undefined
  },
-  protocolusessl: false,
-  usecdn: true,
-  allowanonymous: true,
-  allowanonymousedits: false,
-  allowfreeurl: false,
-  defaultpermission: 'editable',
-  dburl: '',
+  protocolUseSSL: false,
+  useCDN: true,
+  allowAnonymous: true,
+  allowAnonymousEdits: false,
+  allowFreeURL: false,
+  defaultPermission: 'editable',
+  dbURL: '',
  db: {},
  // ssl path
-  sslkeypath: '',
-  sslcertpath: '',
-  sslcapath: '',
-  dhparampath: '',
+  sslKeyPath: '',
+  sslCertPath: '',
+  sslCAPath: '',
+  dhParamPath: '',
  // other path
-  tmppath: './tmp',
-  defaultnotepath: './public/default.md',
-  docspath: './public/docs',
-  indexpath: './public/views/index.ejs',
-  hackmdpath: './public/views/hackmd.ejs',
-  errorpath: './public/views/error.ejs',
-  prettypath: './public/views/pretty.ejs',
-  slidepath: './public/views/slide.ejs',
+  tmpPath: './tmp',
+  defaultNotePath: './public/default.md',
+  docsPath: './public/docs',
+  indexPath: './public/views/index.ejs',
+  hackmdPath: './public/views/hackmd.ejs',
+  errorPath: './public/views/error.ejs',
+  prettyPath: './public/views/pretty.ejs',
+  slidePath: './public/views/slide.ejs',
  // session
-  sessionname: 'connect.sid',
-  sessionsecret: 'secret',
-  sessionlife: 14 * 24 * 60 * 60 * 1000, // 14 days
-  staticcachetime: 1 * 24 * 60 * 60 * 1000, // 1 day
+  sessionName: 'connect.sid',
+  sessionSecret: 'secret',
+  sessionLife: 14 * 24 * 60 * 60 * 1000, // 14 days
+  staticCacheTime: 1 * 24 * 60 * 60 * 1000, // 1 day
  // socket.io
-  heartbeatinterval: 5000,
-  heartbeattimeout: 10000,
+  heartbeatInterval: 5000,
+  heartbeatTimeout: 10000,
  // document
-  documentmaxlength: 100000,
+  documentMaxLength: 100000,
  // image upload setting, available options are imgur/s3/filesystem
-  imageuploadtype: 'filesystem',
-  // legacy variable name for imageuploadtype
-  imageUploadType: undefined,
+  imageUploadType: 'filesystem',
  imgur: {
    clientID: undefined
  },
@ -133,6 +131,6 @@ module.exports = {
    }
  },
  email: true,
-  allowemailregister: true,
-  allowpdfexport: true
+  allowEmailRegister: true,
+  allowPDFExport: true
 }
--- a/lib/config/environment.js
+++ b/lib/config/environment.js
@ -4,10 +4,10 @@ const {toBooleanConfig, toArrayConfig, toIntegerConfig} = require('./utils')

 module.exports = {
  domain: process.env.HMD_DOMAIN,
-  urlpath: process.env.HMD_URL_PATH,
+  urlPath: process.env.HMD_URL_PATH,
  port: toIntegerConfig(process.env.HMD_PORT),
-  urladdport: toBooleanConfig(process.env.HMD_URL_ADDPORT),
-  usessl: toBooleanConfig(process.env.HMD_USESSL),
+  urlAddPort: toBooleanConfig(process.env.HMD_URL_ADDPORT),
+  useSSL: toBooleanConfig(process.env.HMD_USESSL),
  hsts: {
    enable: toBooleanConfig(process.env.HMD_HSTS_ENABLE),
    maxAgeSeconds: process.env.HMD_HSTS_MAX_AGE,
@ -18,15 +18,15 @@ module.exports = {
    enable: toBooleanConfig(process.env.HMD_CSP_ENABLE),
    reportURI: process.env.HMD_CSP_REPORTURI
  },
-  protocolusessl: toBooleanConfig(process.env.HMD_PROTOCOL_USESSL),
-  alloworigin: toArrayConfig(process.env.HMD_ALLOW_ORIGIN),
-  usecdn: toBooleanConfig(process.env.HMD_USECDN),
-  allowanonymous: toBooleanConfig(process.env.HMD_ALLOW_ANONYMOUS),
-  allowanonymousedits: toBooleanConfig(process.env.HMD_ALLOW_ANONYMOUS_EDITS),
-  allowfreeurl: toBooleanConfig(process.env.HMD_ALLOW_FREEURL),
-  defaultpermission: process.env.HMD_DEFAULT_PERMISSION,
-  dburl: process.env.HMD_DB_URL,
-  imageuploadtype: process.env.HMD_IMAGE_UPLOAD_TYPE,
+  protocolUseSSL: toBooleanConfig(process.env.HMD_PROTOCOL_USESSL),
+  allowOrigin: toArrayConfig(process.env.HMD_ALLOW_ORIGIN),
+  useCDN: toBooleanConfig(process.env.HMD_USECDN),
+  allowAnonymous: toBooleanConfig(process.env.HMD_ALLOW_ANONYMOUS),
+  allowAnonymousEdits: toBooleanConfig(process.env.HMD_ALLOW_ANONYMOUS_EDITS),
+  allowFreeURL: toBooleanConfig(process.env.HMD_ALLOW_FREEURL),
+  defaultPermission: process.env.HMD_DEFAULT_PERMISSION,
+  dbURL: process.env.HMD_DB_URL,
+  imageUploadType: process.env.HMD_IMAGE_UPLOAD_TYPE,
  imgur: {
    clientID: process.env.HMD_IMGUR_CLIENTID
  },
@ -102,6 +102,6 @@ module.exports = {
    }
  },
  email: toBooleanConfig(process.env.HMD_EMAIL),
-  allowemailregister: toBooleanConfig(process.env.HMD_ALLOW_EMAIL_REGISTER),
-  allowpdfexport: toBooleanConfig(process.env.HMD_ALLOW_PDF_EXPORT)
+  allowEmailRegister: toBooleanConfig(process.env.HMD_ALLOW_EMAIL_REGISTER),
+  allowPDFExport: toBooleanConfig(process.env.HMD_ALLOW_PDF_EXPORT)
 }
--- a/lib/config/index.js
+++ b/lib/config/index.js
@ -27,6 +27,7 @@ const fileConfig = fs.existsSync(configFilePath) ? require(configFilePath)[env]

 let config = require('./default')
 merge(config, require('./defaultSSL'))
+merge(config, require('./oldDefault'))
 merge(config, debugConfig)
 merge(config, packageConfig)
 merge(config, fileConfig)
@ -51,35 +52,35 @@ if (config.ldap.tlsca) {

 // Permission
 config.permission = Permission
-if (!config.allowanonymous && !config.allowanonymousedits) {
+if (!config.allowAnonymous && !config.allowAnonymousedits) {
  delete config.permission.freely
 }
-if (!(config.defaultpermission in config.permission)) {
-  config.defaultpermission = config.permission.editable
+if (!(config.defaultPermission in config.permission)) {
+  config.defaultPermission = config.permission.editable
 }

 // cache result, cannot change config in runtime!!!
 config.isStandardHTTPsPort = (function isStandardHTTPsPort () {
-  return config.usessl && config.port === 443
+  return config.useSSL && config.port === 443
 })()
 config.isStandardHTTPPort = (function isStandardHTTPPort () {
-  return !config.usessl && config.port === 80
+  return !config.useSSL && config.port === 80
 })()

 // cache serverURL
-config.serverurl = (function getserverurl () {
+config.serverURL = (function getserverurl () {
  var url = ''
  if (config.domain) {
-    var protocol = config.protocolusessl ? 'https://' : 'http://'
+    var protocol = config.protocolUseSSL ? 'https://' : 'http://'
    url = protocol + config.domain
-    if (config.urladdport) {
+    if (config.urlAddPort) {
      if (!config.isStandardHTTPPort || !config.isStandardHTTPsPort) {
        url += ':' + config.port
      }
    }
  }
-  if (config.urlpath) {
-    url += '/' + config.urlpath
+  if (config.urlPath) {
+    url += '/' + config.urlPath
  }
  return url
 })()
@ -97,21 +98,33 @@ config.isGitLabEnable = config.gitlab.clientID && config.gitlab.clientSecret
 config.isMattermostEnable = config.mattermost.clientID && config.mattermost.clientSecret
 config.isLDAPEnable = config.ldap.url
 config.isSAMLEnable = config.saml.idpSsoUrl
-config.isPDFExportEnable = config.allowpdfexport
+config.isPDFExportEnable = config.allowPDFExport

 // merge legacy values
-if (config.imageUploadType && !config.imageuploadtype) {
-  config.imageuploadtype = config.imageUploadType
+let keys = Object.keys(config)
+const uppercase = /[A-Z]/
+for (let i = keys.length; i--;) {
+  let lowercaseKey = keys[i].toLowerCase()
+  // if the config contains uppercase letters
+  // and a lowercase version of this setting exists
+  // and the config with uppercase is not set
+  // we set the new config using the old key.
+  if (uppercase.test(keys[i]) &&
+  config[lowercaseKey] &&
+  !config[keys[1]]) {
+    logger.warn('config.js contains deprecated lowercase setting for ' + keys[i] + '. Please change your config.js file to replace ' + lowercaseKey + ' with ' + keys[i])
+    config[keys[i]] = config[lowercaseKey]
+  }
 }

 // Validate upload upload providers
-if (['filesystem', 's3', 'minio', 'imgur'].indexOf(config.imageuploadtype) === -1) {
+if (['filesystem', 's3', 'minio', 'imgur'].indexOf(config.imageUploadType) === -1) {
  logger.error('"imageuploadtype" is not correctly set. Please use "filesystem", "s3", "minio" or "imgur". Defaulting to "imgur"')
-  config.imageuploadtype = 'imgur'
+  config.imageUploadType = 'imgur'
 }

 // figure out mime types for image uploads
-switch (config.imageuploadtype) {
+switch (config.imageUploadType) {
  case 'imgur':
    config.allowedUploadMimeTypes = [
      'image/jpeg',
@ -131,22 +144,22 @@ switch (config.imageuploadtype) {
 }

 // generate correct path
-config.sslcapath.forEach(function (capath, i, array) {
+config.sslCAPath.forEach(function (capath, i, array) {
  array[i] = path.resolve(appRootPath, capath)
 })

-config.sslcertpath = path.join(appRootPath, config.sslcertpath)
-config.sslkeypath = path.join(appRootPath, config.sslkeypath)
-config.dhparampath = path.join(appRootPath, config.dhparampath)
+config.sslCertPath = path.join(appRootPath, config.sslCertPath)
+config.sslKeyPath = path.join(appRootPath, config.sslKeyPath)
+config.dhParamPath = path.join(appRootPath, config.dhParamPath)

-config.tmppath = path.join(appRootPath, config.tmppath)
-config.defaultnotepath = path.join(appRootPath, config.defaultnotepath)
-config.docspath = path.join(appRootPath, config.docspath)
-config.indexpath = path.join(appRootPath, config.indexpath)
-config.hackmdpath = path.join(appRootPath, config.hackmdpath)
-config.errorpath = path.join(appRootPath, config.errorpath)
-config.prettypath = path.join(appRootPath, config.prettypath)
-config.slidepath = path.join(appRootPath, config.slidepath)
+config.tmpPath = path.join(appRootPath, config.tmpPath)
+config.defaultNotePath = path.join(appRootPath, config.defaultNotePath)
+config.docsPath = path.join(appRootPath, config.docsPath)
+config.indexPath = path.join(appRootPath, config.indexPath)
+config.hackmdPath = path.join(appRootPath, config.hackmdPath)
+config.errorPath = path.join(appRootPath, config.errorPath)
+config.prettyPath = path.join(appRootPath, config.prettyPath)
+config.slidePath = path.join(appRootPath, config.slidePath)

 // make config readonly
 config = deepFreeze(config)
--- a/lib/config/oldDefault.js
+++ b/lib/config/oldDefault.js
@ -0,0 +1,42 @@
+'use strict'
+
+module.exports = {
+  urlpath: undefined,
+  urladdport: undefined,
+  alloworigin: undefined,
+  usessl: undefined,
+  protocolusessl: undefined,
+  usecdn: undefined,
+  allowanonymous: undefined,
+  allowanonymousedits: undefined,
+  allowfreeurl: undefined,
+  defaultpermission: undefined,
+  dburl: undefined,
+  // ssl path
+  sslkeypath: undefined,
+  sslcertpath: undefined,
+  sslcapath: undefined,
+  dhparampath: undefined,
+  // other path
+  tmppath: undefined,
+  defaultnotepath: undefined,
+  docspath: undefined,
+  indexpath: undefined,
+  hackmdpath: undefined,
+  errorpath: undefined,
+  prettypath: undefined,
+  slidepath: undefined,
+  // session
+  sessionname: undefined,
+  sessionsecret: undefined,
+  sessionlife: undefined,
+  staticcachetime: undefined,
+  // socket.io
+  heartbeatinterval: undefined,
+  heartbeattimeout: undefined,
+  // document
+  documentmaxlength: undefined,
+  imageuploadtype: undefined,
+  allowemailregister: undefined,
+  allowpdfexport: undefined
+}
--- a/lib/csp.js
+++ b/lib/csp.js
@ -25,7 +25,7 @@ CspStrategy.computeDirectives = function () {
  var directives = {}
  mergeDirectives(directives, config.csp.directives)
  mergeDirectivesIf(config.csp.addDefaults, directives, defaultDirectives)
-  mergeDirectivesIf(config.usecdn, directives, cdnDirectives)
+  mergeDirectivesIf(config.useCDN, directives, cdnDirectives)
  if (!areAllInlineScriptsAllowed(directives)) {
    addInlineScriptExceptions(directives)
  }
@ -66,7 +66,7 @@ function getCspNonce (req, res) {
 }

 function addUpgradeUnsafeRequestsOptionTo (directives) {
-  if (config.csp.upgradeInsecureRequests === 'auto' && config.usessl) {
+  if (config.csp.upgradeInsecureRequests === 'auto' && config.useSSL) {
    directives.upgradeInsecureRequests = true
  } else if (config.csp.upgradeInsecureRequests === true) {
    directives.upgradeInsecureRequests = true
--- a/lib/models/index.js
+++ b/lib/models/index.js
@ -15,8 +15,8 @@ dbconfig.logging = config.debug ? logger.info : false
 var sequelize = null

 // Heroku specific
-if (config.dburl) {
-  sequelize = new Sequelize(config.dburl, dbconfig)
+if (config.dbURL) {
+  sequelize = new Sequelize(config.dbURL, dbconfig)
 } else {
  sequelize = new Sequelize(dbconfig.database, dbconfig.username, dbconfig.password, dbconfig)
 }
--- a/lib/models/note.js
+++ b/lib/models/note.js
@ -148,7 +148,7 @@ module.exports = function (sequelize, DataTypes) {
              }
            }).then(function (note) {
              if (note) {
-                let filePath = path.join(config.docspath, noteId + '.md')
+                let filePath = path.join(config.docsPath, noteId + '.md')
                if (Note.checkFileExist(filePath)) {
                  // if doc in filesystem have newer modified time than last change time
                  // then will update the doc in db
@ -190,7 +190,7 @@ module.exports = function (sequelize, DataTypes) {
                  return callback(null, note.id)
                }
              } else {
-                var filePath = path.join(config.docspath, noteId + '.md')
+                var filePath = path.join(config.docsPath, noteId + '.md')
                if (Note.checkFileExist(filePath)) {
                  Note.create({
                    alias: noteId,
@ -520,16 +520,16 @@ module.exports = function (sequelize, DataTypes) {
          var body = null
          let filePath = null
          if (!note.alias) {
-            filePath = config.defaultnotepath
+            filePath = config.defaultNotePath
          } else {
-            filePath = path.join(config.docspath, note.alias + '.md')
+            filePath = path.join(config.docsPath, note.alias + '.md')
          }
          if (Note.checkFileExist(filePath)) {
            var fsCreatedTime = moment(fs.statSync(filePath).ctime)
            body = fs.readFileSync(filePath, 'utf8')
            note.title = Note.parseNoteTitle(body)
            note.content = body
-            if (filePath !== config.defaultnotepath) {
+            if (filePath !== config.defaultNotePath) {
              note.createdAt = fsCreatedTime
            }
          }
@ -537,7 +537,7 @@ module.exports = function (sequelize, DataTypes) {
        // if no permission specified and have owner then give default permission in config, else default permission is freely
        if (!note.permission) {
          if (note.ownerId) {
-            note.permission = config.defaultpermission
+            note.permission = config.defaultPermission
          } else {
            note.permission = 'freely'
          }
--- a/lib/ot/server.js
+++ b/lib/ot/server.js
@ -32,7 +32,7 @@ ot.Server = (function (global) {
    // ... and apply that on the document.
    var newDocument = operation.apply(this.document);
    // ignore if exceed the max length of document
-    if(newDocument.length > config.documentmaxlength && newDocument.length > this.document.length)
+    if(newDocument.length > config.documentMaxLength && newDocument.length > this.document.length)
        return;
    this.document = newDocument;
    // Store operation in history.
--- a/lib/realtime.js
+++ b/lib/realtime.js
@ -45,10 +45,10 @@ function secure (socket, next) {
    var handshakeData = socket.request
    if (handshakeData.headers.cookie) {
      handshakeData.cookie = cookie.parse(handshakeData.headers.cookie)
-      handshakeData.sessionID = cookieParser.signedCookie(handshakeData.cookie[config.sessionname], config.sessionsecret)
+      handshakeData.sessionID = cookieParser.signedCookie(handshakeData.cookie[config.sessionName], config.sessionSecret)
      if (handshakeData.sessionID &&
-                handshakeData.cookie[config.sessionname] &&
-                handshakeData.cookie[config.sessionname] !== handshakeData.sessionID) {
+                handshakeData.cookie[config.sessionName] &&
+                handshakeData.cookie[config.sessionName] !== handshakeData.sessionID) {
        if (config.debug) { logger.info('AUTH success cookie: ' + handshakeData.sessionID) }
        return next()
      } else {
@ -284,7 +284,7 @@ function extractNoteIdFromSocket (socket) {
      return false
    }
    var hostUrl = url.parse(referer)
-    var noteId = config.urlpath ? hostUrl.pathname.slice(config.urlpath.length + 1, hostUrl.pathname.length).split('/')[1] : hostUrl.pathname.split('/')[1]
+    var noteId = config.urlPath ? hostUrl.pathname.slice(config.urlPath.length + 1, hostUrl.pathname.length).split('/')[1] : hostUrl.pathname.split('/')[1]
    return noteId
  } else {
    return false
@ -330,7 +330,7 @@ function emitRefresh (socket) {
  var note = notes[noteId]
  var out = {
    title: note.title,
-    docmaxlength: config.documentmaxlength,
+    docmaxlength: config.documentMaxLength,
    owner: note.owner,
    ownerprofile: note.ownerprofile,
    lastchangeuser: note.lastchangeuser,
@ -788,7 +788,7 @@ function connection (socket) {
      var note = notes[noteId]
      // Only owner can change permission
      if (note.owner && note.owner === socket.request.user.id) {
-        if (permission === 'freely' && !config.allowanonymous && !config.allowanonymousedits) return
+        if (permission === 'freely' && !config.allowAnonymous && !config.allowAnonymousedits) return
        note.permission = permission
        models.Note.update({
          permission: permission
--- a/lib/response.js
+++ b/lib/response.js
@ -44,22 +44,22 @@ var response = {
 }

 function responseError (res, code, detail, msg) {
-  res.status(code).render(config.errorpath, {
-    url: config.serverurl,
+  res.status(code).render(config.errorPath, {
+    url: config.serverURL,
    title: code + ' ' + detail + ' ' + msg,
    code: code,
    detail: detail,
    msg: msg,
-    useCDN: config.usecdn
+    useCDN: config.useCDN
  })
 }

 function showIndex (req, res, next) {
-  res.render(config.indexpath, {
-    url: config.serverurl,
-    useCDN: config.usecdn,
-    allowAnonymous: config.allowanonymous,
-    allowAnonymousEdits: config.allowanonymousedits,
+  res.render(config.indexPath, {
+    url: config.serverURL,
+    useCDN: config.useCDN,
+    allowAnonymous: config.allowAnonymous,
+    allowAnonymousEdits: config.allowAnonymousedits,
    facebook: config.isFacebookEnable,
    twitter: config.isTwitterEnable,
    github: config.isGitHubEnable,
@ -71,8 +71,8 @@ function showIndex (req, res, next) {
    ldapProviderName: config.ldap.providerName,
    saml: config.isSAMLEnable,
    email: config.isEmailEnable,
-    allowemailregister: config.allowemailregister,
-    allowpdfexport: config.allowpdfexport,
+    allowEmailRegister: config.allowEmailRegister,
+    allowPDFExport: config.allowPDFExport,
    signin: req.isAuthenticated(),
    infoMessage: req.flash('info'),
    errorMessage: req.flash('error')
@ -89,12 +89,12 @@ function responseHackMD (res, note) {
    'Cache-Control': 'private', // only cache by client
    'X-Robots-Tag': 'noindex, nofollow' // prevent crawling
  })
-  res.render(config.hackmdpath, {
-    url: config.serverurl,
+  res.render(config.hackmdPath, {
+    url: config.serverURL,
    title: title,
-    useCDN: config.usecdn,
-    allowAnonymous: config.allowanonymous,
-    allowAnonymousEdits: config.allowanonymousedits,
+    useCDN: config.useCDN,
+    allowAnonymous: config.allowAnonymous,
+    allowAnonymousEdits: config.allowAnonymousedits,
    facebook: config.isFacebookEnable,
    twitter: config.isTwitterEnable,
    github: config.isGitHubEnable,
@ -106,8 +106,8 @@ function responseHackMD (res, note) {
    ldapProviderName: config.ldap.providerName,
    saml: config.isSAMLEnable,
    email: config.isEmailEnable,
-    allowemailregister: config.allowemailregister,
-    allowpdfexport: config.allowpdfexport
+    allowEmailRegister: config.allowEmailRegister,
+    allowPDFExport: config.allowPDFExport
  })
 }

@ -115,7 +115,7 @@ function newNote (req, res, next) {
  var owner = null
  if (req.isAuthenticated()) {
    owner = req.user.id
-  } else if (!config.allowanonymous) {
+  } else if (!config.allowAnonymous) {
    return response.errorForbidden(res)
  }
  models.Note.create({
@ -123,7 +123,7 @@ function newNote (req, res, next) {
    alias: req.alias ? req.alias : null,
    content: req.body ? req.body : ''
  }).then(function (note) {
-    return res.redirect(config.serverurl + '/' + models.Note.encodeNoteId(note.id))
+    return res.redirect(config.serverURL + '/' + models.Note.encodeNoteId(note.id))
  }).catch(function (err) {
    logger.error(err)
    return response.errorInternalError(res)
@ -155,7 +155,7 @@ function findNote (req, res, callback, include) {
      include: include || null
    }).then(function (note) {
      if (!note) {
-        if (config.allowfreeurl && noteId) {
+        if (config.allowFreeURL && noteId) {
          req.alias = noteId
          return newNote(req, res)
        } else {
@ -179,7 +179,7 @@ function showNote (req, res, next) {
    // force to use note id
    var noteId = req.params.noteId
    var id = models.Note.encodeNoteId(note.id)
-    if ((note.alias && noteId !== note.alias) || (!note.alias && noteId !== id)) { return res.redirect(config.serverurl + '/' + (note.alias || id)) }
+    if ((note.alias && noteId !== note.alias) || (!note.alias && noteId !== id)) { return res.redirect(config.serverURL + '/' + (note.alias || id)) }
    return responseHackMD(res, note)
  })
 }
@ -196,7 +196,7 @@ function showPublishNote (req, res, next) {
    // force to use short id
    var shortid = req.params.shortid
    if ((note.alias && shortid !== note.alias) || (!note.alias && shortid !== note.shortid)) {
-      return res.redirect(config.serverurl + '/s/' + (note.alias || note.shortid))
+      return res.redirect(config.serverURL + '/s/' + (note.alias || note.shortid))
    }
    note.increment('viewcount').then(function (note) {
      if (!note) {
@ -210,7 +210,7 @@ function showPublishNote (req, res, next) {
      var updatetime = note.lastchangeAt
      var title = models.Note.decodeTitle(note.title)
      title = models.Note.generateWebTitle(meta.title || title)
-      var origin = config.serverurl
+      var origin = config.serverURL
      var data = {
        title: title,
        description: meta.description || (markdown ? models.Note.generateDescription(markdown) : null),
@ -219,7 +219,7 @@ function showPublishNote (req, res, next) {
        updatetime: updatetime,
        url: origin,
        body: body,
-        useCDN: config.usecdn,
+        useCDN: config.useCDN,
        owner: note.owner ? note.owner.id : null,
        ownerprofile: note.owner ? models.User.getProfile(note.owner) : null,
        lastchangeuser: note.lastchangeuser ? note.lastchangeuser.id : null,
@ -240,15 +240,15 @@ function renderPublish (data, res) {
  res.set({
    'Cache-Control': 'private' // only cache by client
  })
-  res.render(config.prettypath, data)
+  res.render(config.prettyPath, data)
 }

 function actionPublish (req, res, note) {
-  res.redirect(config.serverurl + '/s/' + (note.alias || note.shortid))
+  res.redirect(config.serverURL + '/s/' + (note.alias || note.shortid))
 }

 function actionSlide (req, res, note) {
-  res.redirect(config.serverurl + '/p/' + (note.alias || note.shortid))
+  res.redirect(config.serverURL + '/p/' + (note.alias || note.shortid))
 }

 function actionDownload (req, res, note) {
@ -298,10 +298,10 @@ function actionPDF (req, res, note) {
  var extracted = models.Note.extractMeta(body)
  var title = models.Note.decodeTitle(note.title)

-  if (!fs.existsSync(config.tmppath)) {
-    fs.mkdirSync(config.tmppath)
+  if (!fs.existsSync(config.tmpPath)) {
+    fs.mkdirSync(config.tmpPath)
  }
-  var path = config.tmppath + '/' + Date.now() + '.pdf'
+  var path = config.tmpPath + '/' + Date.now() + '.pdf'
  markdownpdf().from.string(extracted.markdown).to(path, function () {
    var stream = fs.createReadStream(path)
    var filename = title
@ -320,7 +320,7 @@ function actionPDF (req, res, note) {
 function actionGist (req, res, note) {
  var data = {
    client_id: config.github.clientID,
-    redirect_uri: config.serverurl + '/auth/github/callback/' + models.Note.encodeNoteId(note.id) + '/gist',
+    redirect_uri: config.serverURL + '/auth/github/callback/' + models.Note.encodeNoteId(note.id) + '/gist',
    scope: 'gist',
    state: shortId.generate()
  }
@ -393,10 +393,10 @@ function noteActions (req, res, next) {
        actionInfo(req, res, note)
        break
      case 'pdf':
-        if (config.allowpdfexport) {
+        if (config.allowPDFExport) {
          actionPDF(req, res, note)
        } else {
-          logger.error('PDF export failed: Disabled by config. Set "allowpdfexport: true" to enable. Check the documentation for details')
+          logger.error('PDF export failed: Disabled by config. Set "allowPDFExport: true" to enable. Check the documentation for details')
          response.errorForbidden(res)
        }
        break
@ -407,7 +407,7 @@ function noteActions (req, res, next) {
        actionRevision(req, res, note)
        break
      default:
-        return res.redirect(config.serverurl + '/' + noteId)
+        return res.redirect(config.serverURL + '/' + noteId)
    }
  })
 }
@ -417,10 +417,10 @@ function publishNoteActions (req, res, next) {
    var action = req.params.action
    switch (action) {
      case 'edit':
-        res.redirect(config.serverurl + '/' + (note.alias ? note.alias : models.Note.encodeNoteId(note.id)))
+        res.redirect(config.serverURL + '/' + (note.alias ? note.alias : models.Note.encodeNoteId(note.id)))
        break
      default:
-        res.redirect(config.serverurl + '/s/' + note.shortid)
+        res.redirect(config.serverURL + '/s/' + note.shortid)
        break
    }
  })
@ -431,10 +431,10 @@ function publishSlideActions (req, res, next) {
    var action = req.params.action
    switch (action) {
      case 'edit':
-        res.redirect(config.serverurl + '/' + (note.alias ? note.alias : models.Note.encodeNoteId(note.id)))
+        res.redirect(config.serverURL + '/' + (note.alias ? note.alias : models.Note.encodeNoteId(note.id)))
        break
      default:
-        res.redirect(config.serverurl + '/p/' + note.shortid)
+        res.redirect(config.serverURL + '/p/' + note.shortid)
        break
    }
  })
@ -449,7 +449,7 @@ function githubActions (req, res, next) {
        githubActionGist(req, res, note)
        break
      default:
-        res.redirect(config.serverurl + '/' + noteId)
+        res.redirect(config.serverURL + '/' + noteId)
        break
    }
  })
@ -521,7 +521,7 @@ function gitlabActions (req, res, next) {
        gitlabActionProjects(req, res, note)
        break
      default:
-        res.redirect(config.serverurl + '/' + noteId)
+        res.redirect(config.serverURL + '/' + noteId)
        break
    }
  })
@ -569,7 +569,7 @@ function showPublishSlide (req, res, next) {
  findNote(req, res, function (note) {
    // force to use short id
    var shortid = req.params.shortid
-    if ((note.alias && shortid !== note.alias) || (!note.alias && shortid !== note.shortid)) { return res.redirect(config.serverurl + '/p/' + (note.alias || note.shortid)) }
+    if ((note.alias && shortid !== note.alias) || (!note.alias && shortid !== note.shortid)) { return res.redirect(config.serverURL + '/p/' + (note.alias || note.shortid)) }
    note.increment('viewcount').then(function (note) {
      if (!note) {
        return response.errorNotFound(res)
@ -582,7 +582,7 @@ function showPublishSlide (req, res, next) {
      var updatetime = note.lastchangeAt
      var title = models.Note.decodeTitle(note.title)
      title = models.Note.generateWebTitle(meta.title || title)
-      var origin = config.serverurl
+      var origin = config.serverURL
      var data = {
        title: title,
        description: meta.description || (markdown ? models.Note.generateDescription(markdown) : null),
@ -593,7 +593,7 @@ function showPublishSlide (req, res, next) {
        body: markdown,
        theme: meta.slideOptions && utils.isRevealTheme(meta.slideOptions.theme),
        meta: JSON.stringify(extracted.meta),
-        useCDN: config.usecdn,
+        useCDN: config.useCDN,
        owner: note.owner ? note.owner.id : null,
        ownerprofile: note.owner ? models.User.getProfile(note.owner) : null,
        lastchangeuser: note.lastchangeuser ? note.lastchangeuser.id : null,
@ -615,7 +615,7 @@ function renderPublishSlide (data, res) {
  res.set({
    'Cache-Control': 'private' // only cache by client
  })
-  res.render(config.slidepath, data)
+  res.render(config.slidePath, data)
 }

 module.exports = response
--- a/lib/web/auth/dropbox/index.js
+++ b/lib/web/auth/dropbox/index.js
@ -12,7 +12,7 @@ passport.use(new DropboxStrategy({
  apiVersion: '2',
  clientID: config.dropbox.clientID,
  clientSecret: config.dropbox.clientSecret,
-  callbackURL: config.serverurl + '/auth/dropbox/callback'
+  callbackURL: config.serverURL + '/auth/dropbox/callback'
 }, passportGeneralCallback))

 dropboxAuth.get('/auth/dropbox', function (req, res, next) {
@ -23,7 +23,7 @@ dropboxAuth.get('/auth/dropbox', function (req, res, next) {
 // dropbox auth callback
 dropboxAuth.get('/auth/dropbox/callback',
  passport.authenticate('dropbox-oauth2', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/'
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/'
  })
 )
--- a/lib/web/auth/email/index.js
+++ b/lib/web/auth/email/index.js
@ -31,7 +31,7 @@ passport.use(new LocalStrategy({
  })
 }))

-if (config.allowemailregister) {
+if (config.allowEmailRegister) {
  emailAuth.post('/register', urlencodedParser, function (req, res, next) {
    if (!req.body.email || !req.body.password) return response.errorBadRequest(res)
    if (!validator.isEmail(req.body.email)) return response.errorBadRequest(res)
@ -51,10 +51,10 @@ if (config.allowemailregister) {
          logger.debug('user found: ' + user.id)
          req.flash('error', 'This email has been used, please try another one.')
        }
-        return res.redirect(config.serverurl + '/')
+        return res.redirect(config.serverURL + '/')
      }
      req.flash('error', 'Failed to register your account, please try again.')
-      return res.redirect(config.serverurl + '/')
+      return res.redirect(config.serverURL + '/')
    }).catch(function (err) {
      logger.error('auth callback failed: ' + err)
      return response.errorInternalError(res)
@ -67,8 +67,8 @@ emailAuth.post('/login', urlencodedParser, function (req, res, next) {
  if (!validator.isEmail(req.body.email)) return response.errorBadRequest(res)
  setReturnToFromReferer(req)
  passport.authenticate('local', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/',
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/',
    failureFlash: 'Invalid email or password.'
  })(req, res, next)
 })
--- a/lib/web/auth/facebook/index.js
+++ b/lib/web/auth/facebook/index.js
@ -12,7 +12,7 @@ let facebookAuth = module.exports = Router()
 passport.use(new FacebookStrategy({
  clientID: config.facebook.clientID,
  clientSecret: config.facebook.clientSecret,
-  callbackURL: config.serverurl + '/auth/facebook/callback'
+  callbackURL: config.serverURL + '/auth/facebook/callback'
 }, passportGeneralCallback))

 facebookAuth.get('/auth/facebook', function (req, res, next) {
@ -23,7 +23,7 @@ facebookAuth.get('/auth/facebook', function (req, res, next) {
 // facebook auth callback
 facebookAuth.get('/auth/facebook/callback',
  passport.authenticate('facebook', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/'
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/'
  })
 )
--- a/lib/web/auth/github/index.js
+++ b/lib/web/auth/github/index.js
@ -12,7 +12,7 @@ let githubAuth = module.exports = Router()
 passport.use(new GithubStrategy({
  clientID: config.github.clientID,
  clientSecret: config.github.clientSecret,
-  callbackURL: config.serverurl + '/auth/github/callback'
+  callbackURL: config.serverURL + '/auth/github/callback'
 }, passportGeneralCallback))

 githubAuth.get('/auth/github', function (req, res, next) {
@ -23,8 +23,8 @@ githubAuth.get('/auth/github', function (req, res, next) {
 // github auth callback
 githubAuth.get('/auth/github/callback',
  passport.authenticate('github', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/'
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/'
  })
 )

--- a/lib/web/auth/gitlab/index.js
+++ b/lib/web/auth/gitlab/index.js
@ -14,7 +14,7 @@ passport.use(new GitlabStrategy({
  clientID: config.gitlab.clientID,
  clientSecret: config.gitlab.clientSecret,
  scope: config.gitlab.scope,
-  callbackURL: config.serverurl + '/auth/gitlab/callback'
+  callbackURL: config.serverURL + '/auth/gitlab/callback'
 }, passportGeneralCallback))

 gitlabAuth.get('/auth/gitlab', function (req, res, next) {
@ -25,8 +25,8 @@ gitlabAuth.get('/auth/gitlab', function (req, res, next) {
 // gitlab auth callback
 gitlabAuth.get('/auth/gitlab/callback',
  passport.authenticate('gitlab', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/'
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/'
  })
 )

--- a/lib/web/auth/google/index.js
+++ b/lib/web/auth/google/index.js
@ -11,7 +11,7 @@ let googleAuth = module.exports = Router()
 passport.use(new GoogleStrategy({
  clientID: config.google.clientID,
  clientSecret: config.google.clientSecret,
-  callbackURL: config.serverurl + '/auth/google/callback'
+  callbackURL: config.serverURL + '/auth/google/callback'
 }, passportGeneralCallback))

 googleAuth.get('/auth/google', function (req, res, next) {
@ -21,7 +21,7 @@ googleAuth.get('/auth/google', function (req, res, next) {
  // google auth callback
 googleAuth.get('/auth/google/callback',
  passport.authenticate('google', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/'
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/'
  })
 )
--- a/lib/web/auth/index.js
+++ b/lib/web/auth/index.js
@ -51,5 +51,5 @@ authRouter.get('/logout', function (req, res) {
    logger.debug('user logout: ' + req.user.id)
  }
  req.logout()
-  res.redirect(config.serverurl + '/')
+  res.redirect(config.serverURL + '/')
 })
--- a/lib/web/auth/ldap/index.js
+++ b/lib/web/auth/ldap/index.js
@ -84,8 +84,8 @@ ldapAuth.post('/auth/ldap', urlencodedParser, function (req, res, next) {
  if (!req.body.username || !req.body.password) return response.errorBadRequest(res)
  setReturnToFromReferer(req)
  passport.authenticate('ldapauth', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/',
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/',
    failureFlash: true
  })(req, res, next)
 })
--- a/lib/web/auth/mattermost/index.js
+++ b/lib/web/auth/mattermost/index.js
@ -16,7 +16,7 @@ let mattermostStrategy = new OAuthStrategy({
  tokenURL: config.mattermost.baseURL + '/oauth/access_token',
  clientID: config.mattermost.clientID,
  clientSecret: config.mattermost.clientSecret,
-  callbackURL: config.serverurl + '/auth/mattermost/callback'
+  callbackURL: config.serverURL + '/auth/mattermost/callback'
 }, passportGeneralCallback)

 mattermostStrategy.userProfile = (accessToken, done) => {
@ -43,7 +43,7 @@ mattermostAuth.get('/auth/mattermost', function (req, res, next) {
 // mattermost auth callback
 mattermostAuth.get('/auth/mattermost/callback',
  passport.authenticate('oauth2', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/'
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/'
  })
 )
--- a/lib/web/auth/saml/index.js
+++ b/lib/web/auth/saml/index.js
@ -13,9 +13,9 @@ const intersection = function (array1, array2) { return array1.filter((n) => arr
 let samlAuth = module.exports = Router()

 passport.use(new SamlStrategy({
-  callbackUrl: config.serverurl + '/auth/saml/callback',
+  callbackUrl: config.serverURL + '/auth/saml/callback',
  entryPoint: config.saml.idpSsoUrl,
-  issuer: config.saml.issuer || config.serverurl,
+  issuer: config.saml.issuer || config.serverURL,
  cert: fs.readFileSync(config.saml.idpCert, 'utf-8'),
  identifierFormat: config.saml.identifierFormat
 }, function (user, done) {
@ -77,15 +77,15 @@ passport.use(new SamlStrategy({

 samlAuth.get('/auth/saml',
  passport.authenticate('saml', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/'
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/'
  })
 )

 samlAuth.post('/auth/saml/callback', urlencodedParser,
  passport.authenticate('saml', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/'
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/'
  })
 )

--- a/lib/web/auth/twitter/index.js
+++ b/lib/web/auth/twitter/index.js
@ -12,7 +12,7 @@ let twitterAuth = module.exports = Router()
 passport.use(new TwitterStrategy({
  consumerKey: config.twitter.consumerKey,
  consumerSecret: config.twitter.consumerSecret,
-  callbackURL: config.serverurl + '/auth/twitter/callback'
+  callbackURL: config.serverURL + '/auth/twitter/callback'
 }, passportGeneralCallback))

 twitterAuth.get('/auth/twitter', function (req, res, next) {
@ -23,7 +23,7 @@ twitterAuth.get('/auth/twitter', function (req, res, next) {
 // twitter auth callback
 twitterAuth.get('/auth/twitter/callback',
  passport.authenticate('twitter', {
-    successReturnToOrRedirect: config.serverurl + '/',
-    failureRedirect: config.serverurl + '/'
+    successReturnToOrRedirect: config.serverURL + '/',
+    failureRedirect: config.serverURL + '/'
  })
 )
--- a/lib/web/imageRouter/filesystem.js
+++ b/lib/web/imageRouter/filesystem.js
@ -14,5 +14,5 @@ exports.uploadImage = function (imagePath, callback) {
    return
  }

-  callback(null, url.resolve(config.serverurl + '/', imagePath.match(/^public\/(.+$)/)[1]))
+  callback(null, url.resolve(config.serverURL + '/', imagePath.match(/^public\/(.+$)/)[1]))
 }
--- a/lib/web/imageRouter/index.js
+++ b/lib/web/imageRouter/index.js
@ -15,7 +15,7 @@ imageRouter.post('/uploadimage', function (req, res) {

  form.keepExtensions = true

-  if (config.imageuploadtype === 'filesystem') {
+  if (config.imageUploadType === 'filesystem') {
    form.uploadDir = 'public/uploads'
  }

@ -27,7 +27,7 @@ imageRouter.post('/uploadimage', function (req, res) {
        logger.info('SERVER received uploadimage: ' + JSON.stringify(files.image))
      }

-      const uploadProvider = require('./' + config.imageuploadtype)
+      const uploadProvider = require('./' + config.imageUploadType)
      uploadProvider.uploadImage(files.image.path, function (err, url) {
        if (err !== null) {
          logger.error(err)
--- a/lib/web/middleware/redirectWithoutTrailingSlashes.js
+++ b/lib/web/middleware/redirectWithoutTrailingSlashes.js
@ -6,9 +6,9 @@ module.exports = function (req, res, next) {
  if (req.method === 'GET' && req.path.substr(-1) === '/' && req.path.length > 1) {
    const queryString = req.url.slice(req.path.length)
    const urlPath = req.path.slice(0, -1)
-    let serverURL = config.serverurl
-    if (config.urlpath) {
-      serverURL = serverURL.slice(0, -(config.urlpath.length + 1))
+    let serverURL = config.serverURL
+    if (config.urlPath) {
+      serverURL = serverURL.slice(0, -(config.urlPath.length + 1))
    }
    res.redirect(301, serverURL + urlPath + queryString)
  } else {
--- a/lib/web/statusRouter.js
+++ b/lib/web/statusRouter.js
@ -26,7 +26,7 @@ statusRouter.get('/status', function (req, res, next) {
 // get status
 statusRouter.get('/temp', function (req, res) {
  var host = req.get('host')
-  if (config.alloworigin.indexOf(host) === -1) {
+  if (config.allowOrigin.indexOf(host) === -1) {
    response.errorForbidden(res)
  } else {
    var tempid = req.query.tempid
@ -61,7 +61,7 @@ statusRouter.get('/temp', function (req, res) {
 // post status
 statusRouter.post('/temp', urlencodedParser, function (req, res) {
  var host = req.get('host')
-  if (config.alloworigin.indexOf(host) === -1) {
+  if (config.allowOrigin.indexOf(host) === -1) {
    response.errorForbidden(res)
  } else {
    var data = req.body.data
--- a/public/views/hackmd/header.ejs
+++ b/public/views/hackmd/header.ejs
@ -70,7 +70,7 @@
                </li>
                <li role="presentation"><a role="menuitem" class="ui-download-raw-html" tabindex="-1" href="#" target="_self"><i class="fa fa-file-code-o fa-fw"></i> <%= __('Raw HTML') %></a>
                </li>
-                <% if(typeof allowpdfexport !== 'undefined' && allowpdfexport) {%>
+                <% if(typeof allowPDFExport !== 'undefined' && allowPDFExport) {%>
                  <li role="presentation"><a role="menuitem" class="ui-download-pdf-beta" tabindex="-1" href="#" target="_self"><i class="fa fa-file-pdf-o fa-fw"></i> PDF (Beta)</a>
                  </li>
                <% } %>
@ -176,7 +176,7 @@
                    </li>
                    <li role="presentation"><a role="menuitem" class="ui-download-raw-html" tabindex="-1" href="#" target="_self"><i class="fa fa-file-code-o fa-fw"></i> <%= __('Raw HTML') %></a>
                    </li>
-                    <% if(typeof allowpdfexport !== 'undefined' && allowpdfexport) {%>
+                    <% if(typeof allowPDFExport !== 'undefined' && allowPDFExport) {%>
                      <li role="presentation"><a role="menuitem" class="ui-download-pdf-beta" tabindex="-1" href="#" target="_self"><i class="fa fa-file-pdf-o fa-fw"></i> PDF (Beta)</a>
                      </li>
                    <% } %>
--- a/public/views/shared/signin-modal.ejs
+++ b/public/views/shared/signin-modal.ejs
@ -94,7 +94,7 @@
                    <div class="form-group">
                        <div class="col-sm-12">
                            <button type="submit" class="btn btn-primary" formaction="<%- url %>/login">Sign in</button>
-                            <% if(allowemailregister) { %><button type="submit" class="btn btn-default" formaction="<%- url %>/register">Register</button><% }%>
+                            <% if(allowEmailRegister) { %><button type="submit" class="btn btn-default" formaction="<%- url %>/register">Register</button><% }%>
                        </div>
                    </div>
                </form>