Re: [Lynx-dev] Broken Gopher-to-Telnet links

[Thomas Dickey]

On Mon, Oct 12, 2020 at 05:44:56PM +0200, Dario Niedermann wrote:
> Lynx 2.8.9dev.11 seems to have a problem with Gopher-to-Telnet links where
> the selector part is empty. If a Gopher server sends a line like this:
> ------------------------------------------------------------------------
> 8Foobar BBS[ TAB ]username[ TAB ]foobar-bbs.net[ TAB ]6359
> ------------------------------------------------------------------------
> Lynx will produce this link:
> 
>       telnet://username@foobar-bbs.net:6359/
> 
> which AFAIK is correct. But if the server sends a line with an empty
> selector field, like this:
> ------------------------------------------------------------------------
> 8Foobar BBS[ TAB ][ TAB ]foobar-bbs.net[ TAB ]6359
> ------------------------------------------------------------------------
> Lynx will produce this, instead:
> 
>       telnet:///
> 
> whereas I, for one, would expect:
> 
>       telnet://foobar-bbs.net:6359/

From the context, you're expecting lynx to guess which of the nearby
urls has a suitable site for filling in the missing information.
 
> While RFC 1436 (Gopher protocol) does not say what to do when a Telnet link
> has an empty selector, the UMN Gopher client does the least surprising thing
> and telnets to foobar-bbs.net on port 6359 with no preset username.

I'm assuming this is the source - I can take a look to see what it does:

https://github.com/jgoerzen/gopher

> 
> I've set up a gophermap on my server where you can test this:
> 
>       <gopher://darioniedermann.it/1/Computing/telnetlinks>
> 
> Regards,
> -- 
> Dario Niedermann   -:-   finger my email address for PGP key, etc.
> 
> Also on the Internet at:            <gopher://darioniedermann.it/>
>                                 <https://www.darioniedermann.it/>
> 
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-- 
Thomas E. Dickey <dickey@invisible-island.net>
https://invisible-island.net
ftp://ftp.invisible-island.net

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