On Mon, 12 Feb 2024 at 16:40, Elliotte Rusty Harold <elh...@ibiblio.org> wrote:
>
> Be careful with this one. I don't have full context, but this looks
> likely to be a real bug on some code paths and perhaps not a bug on
> others. We'll need to make sure that the patch for the broken code
> path doesn't break a currently working path. Specifically I'm worried
> about where \r\n might and might not show up after the if block shown
> here.

The existing code appears to have the correct number of CRLFs only if
the conditional is true.

So I think the line

output.write(CRLF);

should be moved into the conditional, rather than being added to the
conditional, as that would result in an extra CRLF.

i.e.

https://github.com/apache/commons-net/pull/217


> On Mon, Feb 12, 2024 at 10:15 AM Емельянов Юрий Владимирович
> <emelya...@krista.ru.invalid> wrote:
> >
> > see FTPHTTPClient.tunnelHandshake
> >
> > current code is:
> >
> >          if (proxyUsername != null && proxyPassword != null) {
> >              final String auth = proxyUsername + ":" + proxyPassword;
> >              final String header = "Proxy-Authorization: Basic " +
> > Base64.getEncoder().encodeToString(auth.getBytes(charset));
> >              output.write(header.getBytes(charset));
> >          }
> > correct code is:
> >
> >          if (proxyUsername != null && proxyPassword != null) {
> >              final String auth = proxyUsername + ":" + proxyPassword;
> >              final String header = "Proxy-Authorization: Basic " +
> > Base64.getEncoder().encodeToString(auth.getBytes(charset));
> >              output.write(header.getBytes(charset));
> > *output.write(CRLF);*
> >          }
> >
>
>
> --
> Elliotte Rusty Harold
> elh...@ibiblio.org
>
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