Handle illegal ranges in range requests

src/main/java/org/gaul/s3proxy/S3ErrorCode.java

@@ -49,6 +49,8 @@ enum S3ErrorCode {
             "The specified location constraint is not valid. For" +
             " more information about Regions, see How to Select" +
             " a Region for Your Buckets."),
+    INVALID_RANGE(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE,
+            "The requested range is not satisfiable"),
     INVALID_PART(HttpServletResponse.SC_BAD_REQUEST,
             "One or more of the specified parts could not be found." +
             "  The part may not have been uploaded, or the specified entity" +

src/main/java/org/gaul/s3proxy/S3ProxyHandler.java

@@ -967,7 +967,12 @@ final class S3ProxyHandler extends AbstractHandler {
             status = HttpServletResponse.SC_PARTIAL_CONTENT;
         }
 
-        Blob blob = blobStore.getBlob(containerName, blobName, options);
+        Blob blob;
+        try {
+            blob = blobStore.getBlob(containerName, blobName, options);
+        } catch (IllegalArgumentException iae) {
+            throw new S3Exception(S3ErrorCode.INVALID_RANGE);
+        }
         if (blob == null) {
             throw new S3Exception(S3ErrorCode.NO_SUCH_KEY);
         }