Fix richardgirges#342 URI malformed error

HowTo reproduce source: https://stackoverflow.com/questions/28063750/decodeuricomponent-throwing-an-error-uri-malformed
HowTo prevent invalid character credit: https://stackoverflow.com/questions/2670037/how-to-remove-invalid-utf-8-characters-from-a-javascript-string

Thanks: T.J. Crowder
Thanks: Phylogenesis
Thanks: loretoparisi

lib/utilities.js

@@ -182,7 +182,7 @@ const copyFile = (src, dst, callback) => {
 
 /**
  * moveFile: moves the file from src to dst.
- * Firstly trying to rename the file if no luck copying it to dst and then deleteing src.
+ * First try to rename the file if no luck copy it to dst and then delete src.
  * @param {string} src - Path to the source file
  * @param {string} dst - Path to the destination file.
  * @param {Function} callback - A callback function.
@@ -224,12 +224,26 @@ const saveBufferToFile = (buffer, filePath, callback) => {
 };
 
 /**
- * Decodes uriEncoded file names.
+ * Decodes uriEncoded file names
+ * and remove invalid char range
+ * @param opts {Object} - { uriDecodeFileNames } options
  * @param fileName {String} - file name to decode.
  * @returns {String}
  */
 const uriDecodeFileName = (opts, fileName) => {
-  return opts.uriDecodeFileNames ? decodeURIComponent(fileName) : fileName;
+  if (opts.uriDecodeFileNames && fileName) {
+     try {
+         // ignore invalid char ranges
+         var byteLike = unescape(encodeURIComponent(fileName));
+         var decodedFileName = decodeURIComponent(escape(byteLike));
+     } catch (error) {
+         // ignore decode error
+     }
+     // remove �
+     decodedFileName = decodedFileName.replace(/\uFFFD/g, '');
+     return decodedFileName;
+  }
+  return fileName;
 };
 
 /**
@@ -275,7 +289,7 @@ const parseFileNameExtension = (preserveExtension, fileName) => {
 const parseFileName = (opts, fileName) => {
   // Check fileName argument
   if (!fileName || typeof fileName !== 'string') return getTempFilename();
-  // Cut off file name if it's lenght more then 255.
+  // Cut off file name if it's length more then 255.
   let parsedName = fileName.length <= 255 ? fileName : fileName.substr(0, 255);
   // Decode file name if uriDecodeFileNames option set true.
   parsedName = uriDecodeFileName(opts, parsedName);