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As promised, I have implemented a Gemini server in C11 for POSIX systems: gmnisrv. gemini://drewdevault.com/gmnisrv.gmi gmnisrv is a high-performance server which requires next to no configuration. You just write a file like this: listen=0.0.0.0:1965 [::]:1965 [:tls] store=/var/lib/gemini/certs organization=gmnisrv user [example.org] root=/srv/gemini/example.org [example.com] root=/srv/gemini/example.com Stick it in /etc/gmnisrv.ini, start the daemon, and you're done. It automatically generates and rotates certificates for you. The only dependencies are a C11 compiler, a POSIX-like system, and OpenSSL*. It clocks in at about 3,000 lines of code. In the future, I would like to add support for some simple URL rewrites and reverse proxy support.
Thanks again! This tiny server has around a 3MB resident footprint.
I think having a server capable of managing its own certificates is a great
idea - there have been plenty of issues where a certificate anomaly turned
out to be the problem.
One minor issue - I don't think that C11, as per the readme, supports the
single argument version of static_assert, as used in include/server.h. The
following is suggested: -
8< ----------
diff --git a/include/server.h b/include/server.h
index c6f4a38..c4ea470 100644
--- a/include/server.h
+++ b/include/server.h
@@ -27,7 +27,7 @@ struct gmnisrv_client {
BIO *bio, *sbio;
char buf[4096];
- static_assert(GEMINI_MAX_URL + 3 < 4096);
+ static_assert(GEMINI_MAX_URL + 3 < 4096, "GEMINI_MAX_URL is too
large");
size_t bufix, bufln;
enum response_state state;
8< ----------
Kevin
On Sat, 26 Sep 2020 at 23:36, Drew DeVault <sir at cmpwn.com> wrote:
> As promised, I have implemented a Gemini server in C11 for POSIX
> systems: gmnisrv.
>
> gemini://drewdevault.com/gmnisrv.gmi
>
> gmnisrv is a high-performance server which requires next to no
> configuration. You just write a file like this:
>
> listen=0.0.0.0:1965 [::]:1965
>
> [:tls]
> store=/var/lib/gemini/certs
> organization=gmnisrv user
>
> [example.org]
> root=/srv/gemini/example.org
>
> [example.com]
> root=/srv/gemini/example.com
>
> Stick it in /etc/gmnisrv.ini, start the daemon, and you're done. It
> automatically generates and rotates certificates for you.
>
> The only dependencies are a C11 compiler, a POSIX-like system, and
> OpenSSL*. It clocks in at about 3,000 lines of code. In the future, I
> would like to add support for some simple URL rewrites and reverse proxy
> support.
>
> * I actually mean OpenSSL when I say it, not LibreSSL or GNUTLS or
> anything else.
>
> Development info can be found here:
>
> https://sr.ht/~sircmpwn/gmni/
>
> Enjoy!
>
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On Sun Sep 27, 2020 at 3:56 PM EDT, Kevin Sangeelee wrote: > Thanks again! This tiny server has around a 3MB resident footprint. > > I think having a server capable of managing its own certificates is a > great idea - there have been plenty of issues where a certificate > anomaly turned out to be the problem. > > One minor issue - I don't think that C11, as per the readme, supports > the single argument version of static_assert, as used in > include/server.h. The following is suggested: - Thanks for the head's up! Could you rephrase this in the form of a git patch sent to ~sircmpwn/gmni-devel at lists.sr.ht? See https://git-send-email.io
---
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