.Dd August 30, 2020
.Dt README 7
.Os "Causal Agency"
.
.Sh NAME
.Nm pounce
.Nd IRC pouncer :3
.
.Sh DESCRIPTION
.Xr pounce 1
is a multi-client, TLS-only IRC bouncer.
It takes a simple approach,
using a multiple-consumer ring buffer
and the IRCv3.2
.Sy server-time
extension to communicate with clients.
.
.Sh RATIONALE
As a former
.Xr znc 1
user,
I was dissatisfied with the multi-client experience it offered.
I wanted to connect from both my laptop and my phone
and have full chat history on both.
With
.Xr znc 1 ,
my options were either having both clients
spammed with redundant history every time they connect,
or having one client consume the buffer
and the other get no history at all.
.
.Pp
With a multiple-consumer ring buffer,
each client has its own place in the history
and can be brought up to date independently.
Additionally,
by expecting clients to implement the
.Sy server-time
extension,
all events can be accurately replayed,
rather than being limited to messages.
.
.Sh INSTALLING
.Nm
requires
.Sy libtls ,
provided by either
.Lk https://git.causal.agency/libretls/about LibreTLS
(for OpenSSL)
or by LibreSSL.
It primarily targets
.Fx ,
where it is sandboxed with
.Xr capsicum 4 ,
and
.Ox ,
where it is sandboxed with
.Xr pledge 2
and
.Xr unveil 2 .
Linux and macOS
are also supported.
On
.Ox ,
configure with
.Fl \-mandir=/usr/local/man .
.Bd -literal -offset indent
\&./configure
make all
sudo make install
.Ed
.
.Pp
If installing
.Sy libtls
manually to
.Pa /usr/local ,
for example,
make sure
.Pa /usr/local/lib
appears in
.Pa /etc/ld.so.conf
or
.Pa /etc/ld.so.conf.d/*
and be sure to run
.Xr ldconfig 8
once the library is installed.
Set
.Ev PKG_CONFIG_PATH
for
.Nm ./configure
to find it.
.Bd -literal -offset indent
PKG_CONFIG_PATH=/usr/local/lib/pkgconfig ./configure
.Ed
.
.Pp
On
.Fx
and
.Ox
the recommended way to run
.Nm
is with the process supervisor
.Lk https://git.causal.agency/catsit catsit .
.
.Ss Additional Components
Additional functionality can be provided
by special-purpose clients connected to
.Nm .
.Bl -bullet
.It
Logging can be provided by
.Lk https://git.causal.agency/litterbox litterbox .
.It
Push notifications for the Palaver IRC app
can be provided by
.Nm pounce-palaver ,
located in the
.Pa contrib/palaver
directory.
It additionally requires
.Sy libcurl
and
.Sy libsqlite3 .
.El
.
.Sh FILES
.Bl -tag -width "dispatch.c" -compact
.It Pa bounce.h
declarations and common functions
.It Pa bounce.c
configuration and event loop
.It Pa local.c
local server binding
.It Pa server.c
remote server connection
.It Pa client.c
remote client connections
.It Pa state.c
state shared between clients
.It Pa ring.c
buffer between server and clients
.It Pa cert.c
sandboxed certificate reloading
.It Pa config.c
.Xr getopt_long 3 Ns -integrated
configuration parsing
.It Pa xdg.c
XDG base directories
.It Pa dispatch.c
SNI socket dispatch
.El
.
.Sh CONTRIBUTING
The upstream URL of this project is
.Aq Lk https://git.causal.agency/pounce .
Contributions in any form can be sent to
.Aq Mt list+pounce@causal.agency .
For sending patches by email, see
.Aq Lk https://git-send-email.io .
.
.Sh SEE ALSO
.Xr calico 1 ,
.Xr pounce 1
.
.Pp
Central logging with full-text search:
.Lk https://git.causal.agency/litterbox "litterbox"
.
.Rs
.%A June Bug
.%T IRC Suite
.%U https://text.causal.agency/010-irc-suite.txt
.%D June 19, 2020
.Re