Replaces jshint with eslint

.eslintrc

@@ -0,0 +1,45 @@
+{
+  "extends": "eslint:recommended",
+  "env": {
+    "node": true,
+    "mocha": true,
+    "es6": true
+  },
+  "parserOptions": {
+    "ecmaVersion": 9,
+    "sourceType": "module",
+    "ecmaFeatures" : {
+      "globalReturn": false,
+      "impliedStrict": true,
+      "jsx": false
+    }
+  },
+  "rules": {
+      "indent": [
+        "error",
+        2
+      ],
+      "linebreak-style": [
+        "error",
+        "unix"
+      ],
+      "quotes": [
+        "error",
+        "single"
+      ],
+      "semi": [
+        "error",
+        "always"
+      ],
+      "no-console": "off",
+      "no-unused-vars": [
+        "error", 
+        { 
+          "vars": "all",
+          "args": "none",
+          "ignoreRestSiblings": false 
+        }
+      ]
+    }
+  }
+

.gitignore

@@ -30,6 +30,7 @@ npm-debug.log*~
 auto-save-list
 tramp
 .\#*
+.vscode
 
 # Org-mode
 .org-id-locations

lib/grant-types/authorization-code-grant-type.js

@@ -133,21 +133,21 @@ AuthorizationCodeGrantType.prototype.getAuthorizationCode = function(request, cl
  * @see https://tools.ietf.org/html/rfc6749#section-4.1.3
  */
 
- AuthorizationCodeGrantType.prototype.validateRedirectUri = function(request, code) {
-   if (!code.redirectUri) {
-     return;
-   }
+AuthorizationCodeGrantType.prototype.validateRedirectUri = function(request, code) {
+  if (!code.redirectUri) {
+    return;
+  }
 
-   var redirectUri = request.body.redirect_uri || request.query.redirect_uri;
+  var redirectUri = request.body.redirect_uri || request.query.redirect_uri;
 
-   if (!is.uri(redirectUri)) {
-     throw new InvalidRequestError('Invalid request: `redirect_uri` is not a valid URI');
-   }
+  if (!is.uri(redirectUri)) {
+    throw new InvalidRequestError('Invalid request: `redirect_uri` is not a valid URI');
+  }
 
-   if (redirectUri !== code.redirectUri) {
-     throw new InvalidRequestError('Invalid request: `redirect_uri` is invalid');
-   }
- };
+  if (redirectUri !== code.redirectUri) {
+    throw new InvalidRequestError('Invalid request: `redirect_uri` is invalid');
+  }
+};
 
 /**
  * Revoke the authorization code.

lib/models/token-model.js

@@ -47,7 +47,7 @@ function TokenModel(data, options) {
     this.customAttributes = {};
 
     for (var key in data) {
-      if (data.hasOwnProperty(key) && (modelAttributes.indexOf(key) < 0)) {
+      if ( Object.prototype.hasOwnProperty.call(data, key) && (modelAttributes.indexOf(key) < 0)) {
         this.customAttributes[key] = data[key];
       }
     }

lib/token-types/bearer-token-type.js

@@ -48,7 +48,7 @@ BearerTokenType.prototype.valueOf = function() {
   }
 
   for (var key in this.customAttributes) {
-    if (this.customAttributes.hasOwnProperty(key)) {
+    if ( Object.prototype.hasOwnProperty.call(this.customAttributes, key) ) {
       object[key] = this.customAttributes[key];
     }
   }

lib/validator/is.js

@@ -1,18 +1,22 @@
 'use strict';
+/* eslint-disable no-control-regex */
 
 /**
  * Validation rules.
  */
 
 var rules = {
-  NCHAR: /^[\u002D|\u002E|\u005F|\w]+$/,
-  NQCHAR: /^[\u0021|\u0023-\u005B|\u005D-\u007E]+$/,
-  NQSCHAR: /^[\u0020-\u0021|\u0023-\u005B|\u005D-\u007E]+$/,
-  UNICODECHARNOCRLF: /^[\u0009|\u0020-\u007E|\u0080-\uD7FF|\uE000-\uFFFD|\u10000-\u10FFFF]+$/,
+  NCHAR: /^[\u002D\u002E\u005F\w]+$/,
+  NQCHAR: /^[\u0021\u0023-\u005B\u005D-\u007E]+$/,
+  NQSCHAR: /^[\u0020-\u0021\u0023-\u005B\u005D-\u007E]+$/,
+  UNICODECHARNOCRLF: /^[\u0009\u0020-\u007E\u0080-\uD7FF\uE000-\uFFFD]+$/,
+  UNICODECHARNOCRLF_EXTENDED: /^[\u{10000}-\u{10FFFF}]+$/u,
   URI: /^[a-zA-Z][a-zA-Z0-9+.-]+:/,
   VSCHAR: /^[\u0020-\u007E]+$/
 };
 
+/* eslint-enable no-control-regex */
+
 /**
  * Export validation functions.
  */
@@ -57,7 +61,12 @@ module.exports = {
    */
 
   uchar: function(value) {
-    return rules.UNICODECHARNOCRLF.test(value);
+    // manually test \u10000-\u10FFFF
+    if (rules.UNICODECHARNOCRLF.test(value)) {
+      return true;
+    }
+
+    return rules.UNICODECHARNOCRLF_EXTENDED.test(value);
   },
 
   /**