URls without file name in it

[y-lohse]

Hi, there is a bug when the zip url doesn't contain the file name / contains invalid characters. For example, our update server builds urls like htttp://example.com/build.php?id=545sdfsdff48sf1cv2, but the same error can be reproduced by just using a url like http://example.com/app.zip?lol.

The error is Error: ENOENT, open 'c:\TMPPATH\build.php?id=8965c9db76b64fb9421d153476b787b2' at Error (native). I guess it's because the computed filename isn't a valid file name.

Maybe a better approach would be to inspect the headers to find a Content-disposition? Althought right now the first response headers come in after the file name has been used to unlink & create the stream.