fix: cipher with non-english characters

app/cipher.js

@@ -2,11 +2,13 @@ function cipher(salt) {
     function textToChars(text) {
       return text.split('').map(function(c) { return c.charCodeAt(0); });
     }
+
     function byteHex(n) {
-      return ("0" + Number(n).toString(16)).substr(-2);
+      return '%' + Number(n).toString(16);
     }
+
     function applySaltToChar(code) {
-      return textToChars(salt).reduce(function(a,b) { return a ^ b; }, code);
+      return textToChars(salt).reduce(function(a, b) { return a ^ b; }, code);
     }
 
     return function(text) {
@@ -20,4 +22,4 @@ function cipher(salt) {
 
 var myCipher = cipher(process.env.PROP_SALT);
 
-module.exports = { myCipher };
+module.exports = { myCipher };

js/decipher.js

@@ -1,11 +1,11 @@
 const decipher = salt => {
     const textToChars = text => text.split('').map(c => c.charCodeAt(0));
-    const applySaltToChar = code => textToChars(salt).reduce((a,b) => a ^ b, code);
-    return encoded => encoded.match(/.{1,2}/g)
-      .map(hex => parseInt(hex, 16))
+    const applySaltToChar = code => textToChars(salt).reduce((a, b) => a ^ b, code);
+    return encoded => encoded.match(/%\w+(?=%)?/g)
+      .map(hex => parseInt(hex.substr((hex.length -1) * -1), 16))
       .map(applySaltToChar)
       .map(charCode => String.fromCharCode(charCode))
       .join('');
 }
 
-export default decipher;
+export default decipher;