jslint

base64url.js

@@ -1,9 +1,10 @@
+/*jslint browser: true, sloppy: true */
 //adapted from https://tools.ietf.org/html/draft-ietf-jose-json-web-signature-08#appendix-C
 
-function base64urlEncode(s) {
+function base64urlEncode(arg) {
   var s = window.btoa(arg); // Regular base64 encoder
   s = s.split('=')[0]; // Remove any trailing '='s
-  s = s.replace(/+/g,  '-'); // 62nd char of encoding
+  s = s.replace(/\+/g,  '-'); // 62nd char of encoding
   s = s.replace(/\//g, '_'); // 63rd char of encoding
   return s;
 }
@@ -12,10 +13,16 @@ function  base64urlDecode(s) {
   s = s.replace(/-/g, '+'); // 62nd char of encoding
   s = s.replace(/_/g, '/'); // 63rd char of encoding
   switch (s.length % 4) { // Pad with trailing '='s
-    case 0: break; // No pad chars in this case
-    case 2: s += "=="; break; // Two pad chars
-    case 3: s += "="; break; // One pad char
-    default: throw "Illegal base64url string!";
+  case 0: // No pad chars in this case
+    break;
+  case 2: // Two pad chars
+    s += "==";
+    break;
+  case 3: // One pad char
+    s += "=";
+    break;
+  default:
+    throw "Illegal base64url string!";
   }
   return window.atob(s); // Standard base64 decoder
 }

js-keygen-ui.js

@@ -1,3 +1,6 @@
+/*jslint browser: true, sloppy: true, vars: true, indent: 2*/
+var console, generateKeyPair;
+
 function copy(id) {
   return function () {
     var ta = document.querySelector(id);
@@ -12,7 +15,7 @@ function copy(id) {
     }
     window.getSelection().removeAllRanges();
     ta.blur();
-  }
+  };
 }
 
 function buildHref(data) {
@@ -35,7 +38,7 @@ document.addEventListener("DOMContentLoaded", function(event) {
     document.querySelector('a#public').setAttribute("download", name + "_rsa.pub");
     
     var alg = document.querySelector('#alg').value || "RSASSA-PKCS1-v1_5";
-    var size = parseInt(document.querySelector('#size').value || "2048");
+    var size = parseInt(document.querySelector('#size').value || "2048", 10);
     generateKeyPair(alg, size, name).then(function (keys) {
       document.querySelector('#private').setAttribute("href", buildHref(keys[0]));
       document.querySelector('#public').setAttribute("href", buildHref(keys[1]));

js-keygen.js

@@ -1,4 +1,7 @@
+/*jslint browser: true, devel: true, sloppy: true, vars: true*/
+/*globals Uint8Array, Promise */
 var extractable = true;
+var encodePrivateKey, encodePublicKey;
 
 function wrap(text, len) {
   var length = len || 72, i, result = "";
@@ -13,10 +16,10 @@ function rsaPrivateKey(key) {
 }
 
 function arrayBufferToBase64(buffer) {
-    var binary = '';
+  var binary = '', i;
   var bytes = new Uint8Array(buffer);
   var len = bytes.byteLength;
-    for (var i = 0; i < len; i++) {
+  for (i = 0; i < len; i += 1) {
     binary += String.fromCharCode(bytes[i]);
   }
   return window.btoa(binary);
@@ -27,24 +30,24 @@ function generateKeyPair(alg, size, name) {
     name: "RSASSA-PKCS1-v1_5",
     modulusLength: 2048, //can be 1024, 2048, or 4096
     publicExponent: new Uint8Array([0x01, 0x00, 0x01]),
-          hash: {name: "SHA-1"}, //can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
+    hash: {name: "SHA-1"} //can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
   },
     extractable,
     ["sign", "verify"]
     ).then(function (key) {
     
-    var private = window.crypto.subtle.exportKey(
+    var privateKey = window.crypto.subtle.exportKey(
         "jwk",
         key.privateKey
       ).then(encodePrivateKey).then(wrap).then(rsaPrivateKey);
 
-    var public = window.crypto.subtle.exportKey(
+    var publicKey = window.crypto.subtle.exportKey(
         "jwk",
         key.publicKey
       ).then(function (jwk) {
         return encodePublicKey(jwk, name);
       });
     
-    return Promise.all([private, public]);
+    return Promise.all([privateKey, publicKey]);
   });
 }

ssh-util.js

@@ -1,3 +1,7 @@
+/*jslint browser: true, devel: true, bitwise: true, sloppy: true, vars: true*/
+
+var base64urlDecode;
+
 function arrayToString(a) {
   return String.fromCharCode.apply(null, a);
 }
@@ -24,7 +28,7 @@ function arrayToPem(a) {
 
 function arrayToLen(a) {
   var result = 0, i;
-  for(i = 0; i < a.length; i++) {
+  for (i = 0; i < a.length; i += 1) {
     result = result * 256 + a[i];
   }
   return result;
@@ -32,7 +36,7 @@ function arrayToLen(a) {
 
 function integerToOctet(n) {
   var result = [];
-  for(;n > 0; n = n >> 8 ) {
+  for (true; n > 0; n = n >> 8) {
     result.push(n & 0xFF);
   }
   return result.reverse();
@@ -40,7 +44,7 @@ function integerToOctet(n) {
 
 function lenToArray(n) {
   var oct = integerToOctet(n), i;
-  for(i = oct.length; i < 4; i++) {
+  for (i = oct.length; i < 4; i += 1) {
     oct.unshift(0);
   }
   return oct;
@@ -49,13 +53,13 @@ function lenToArray(n) {
 function decodePublicKey(s) {
   var split = s.split(" ");
   var prefix = split[0];
-  if(prefix != "ssh-rsa") {
+  if (prefix !== "ssh-rsa") {
     throw ("Unknown prefix:" + prefix);
   }
   var buffer = pemToArray(split[1]);
   var nameLen = arrayToLen(buffer.splice(0, 4));
   var type = arrayToString(buffer.splice(0, nameLen));
-  if(type != "ssh-rsa") {
+  if (type !== "ssh-rsa") {
     throw ("Unknown key type:" + type);
   }
   var exponentLen = arrayToLen(buffer.splice(0, 4));
@@ -65,6 +69,13 @@ function decodePublicKey(s) {
   return {type: type, exponent: exponent, key: key, name: split[2]};
 }
 
+function checkHighestBit(v) {
+  if (v[0] >> 7 === 1) { // add leading zero if first bit is set
+    v.unshift(0);
+  }
+  return v;
+}
+
 function jwkToInternal(jwk) {
   return {
     type: "ssh-rsa",
@@ -74,13 +85,6 @@ function jwkToInternal(jwk) {
   };
 }
 
-function checkHighestBit(v) {
-  if(v[0] >> 7 === 1) { // add leading zero if first bit is set
-    v.unshift(0);
-  }
-  return v;
-}
-
 function encodePublicKey(jwk, name) {
   var k = jwkToInternal(jwk);
   k.name = name;