stripping all non-alphanumeric chars, when uploading existing archives

(brackets caused troubles)

Author: FreakyBytes

src/main/java/de/unirostock/sems/cbarchive/web/rest/RestApi.java

@@ -652,9 +652,13 @@ public Response createArchiveFromMultipart( @CookieParam(Fields.COOKIE_PATH) Str
 			// check for mime type
 			// TODO
 
+			// figuring out a good temp file name (seems like URIs don't like Brackets) 
+			String uploadedFileName = file.getFormDataContentDisposition().getFileName();
+			uploadedFileName = uploadedFileName.replaceAll("[^A-Za-z0-9]", "_");
+			
 			// write uploaded file to temp
 			// copy the stream to a temp file
-			temp = Files.createTempFile( Fields.TEMP_FILE_PREFIX, file.getFormDataContentDisposition().getFileName() );
+			temp = Files.createTempFile( Fields.TEMP_FILE_PREFIX, uploadedFileName );
 			// write file to disk
 			OutputStream output = new FileOutputStream( temp.toFile() );
 			InputStream input = file.getEntityAs(InputStream.class);