bouncer/docs/USAGE.md

Usage

Starting the Bouncer

bouncer -c config/bouncer.toml -v

Flag	Description
-c, --config PATH	Config file (default: config/bouncer.toml)
-v, --verbose	Debug logging
--version	Show version

Connection Lifecycle

The bouncer goes through several states when connecting to an IRC server:

DISCONNECTED -> CONNECTING -> REGISTERING -> PROBATION -> READY
                    |              |              |
                    `--------------+--------------'
                         (failure = reconnect)

1. Stealth Registration

On connect, the bouncer registers with a random identity:

• Nick: pronounceable markov-generated word (e.g., heliagu, crewo, midon)
• User/Ident: random pronounceable word
• Realname: random capitalized word

No fixed prefix or pattern -- each attempt looks like a different person.

2. Probation (15 seconds)

After registration succeeds (001 RPL_WELCOME), the bouncer enters a 15-second probation window. During this time it watches for:

• ERROR messages (K-line, ban)
• Server closing the connection

If the connection drops during probation, the bouncer reconnects with a fresh random identity and tries again.

3. Ready

Once probation passes without incident:

1. Bouncer switches to your configured nick (NICK mynick)
2. Joins configured channels (if autojoin = true)
3. Begins relaying messages to/from connected clients

4. Reconnection

On any disconnection, the bouncer reconnects with exponential backoff:

Attempt	Delay
1	5s
2	10s
3	30s
4	60s
5	120s
6+	300s

Each reconnection uses a fresh random identity.

DNS Resolution

Hostnames are resolved locally before being passed to the SOCKS5 proxy. If a hostname resolves to multiple IPs, the bouncer tries each one until a connection succeeds. This handles proxies that don't support remote DNS and avoids IPs that are unreachable through the proxy.

Connecting with an IRC Client

Configure your IRC client to connect to the bouncer:

Setting	Value
Server	127.0.0.1
Port	6667 (or as configured)
Password	yourpassword

Password Format

PASS <password>

The password is the bouncer.password value from config. A single connection automatically attaches to all configured networks.

Client Examples

irssi:

/connect -password mypassword 127.0.0.1 6667

weechat:

/server add bouncer 127.0.0.1/6667 -password=mypassword
/connect bouncer

hexchat:

Set server password to mypassword in the network settings.

Multi-Network Namespacing

All configured networks are multiplexed onto a single client connection. Channels and nicks carry a /network suffix so you can tell which network they belong to:

Client sees:         Server wire:
#libera/libera  <->  #libera       (on libera network)
#debian/oftc    <->  #debian       (on oftc network)
user123/libera  <->  user123       (on libera network)

Rules

• Channels: #channel/network in client, #channel on wire
• Foreign nicks: nick/network in client, nick on wire
• Own nicks: shown without suffix (prevents client confusion)
• Sending messages: include the /network suffix in the target

/msg #libera/libera hello     -> sends "hello" to #libera on libera network
/join #test/oftc              -> joins #test on oftc network
/msg user123/libera hi        -> private message to user123 on libera

Comma-Separated JOIN/PART

Targets can span networks:

/join #a/libera,#b/oftc       -> joins #a on libera AND #b on oftc

Multiple clients can attach simultaneously. All receive the same namespaced messages in real time.

What Clients Receive on Connect

When a client authenticates:

1. Backlog replay -- missed messages (namespaced) from all networks
2. Synthetic welcome -- 001-004 numeric replies listing all networks
3. Channel state -- synthetic JOIN, TOPIC, and NAMES for every joined channel across all networks (all namespaced with /network suffix)

Backlog

Messages are stored in bouncer.db (SQLite) next to the config file. When you reconnect, missed messages are automatically replayed.

Configure in bouncer.toml:

[bouncer.backlog]
max_messages = 10000       # per network, 0 = unlimited
replay_on_connect = true   # set false to disable replay

Stored commands: PRIVMSG, NOTICE, TOPIC, KICK, MODE.

Configuration Reference

[bouncer]
bind = "127.0.0.1"        # listen address
port = 6667                # listen port
password = "changeme"      # client authentication password

[bouncer.backlog]
max_messages = 10000       # per network, 0 = unlimited
replay_on_connect = true   # replay missed messages on client connect

[proxy]
host = "127.0.0.1"        # SOCKS5 proxy address
port = 1080                # SOCKS5 proxy port

[networks.libera]
host = "irc.libera.chat"  # IRC server hostname
port = 6697                # server port (default: 6697 if tls, 6667 otherwise)
tls = true                 # use TLS for server connection
nick = "mynick"            # desired IRC nick (set after probation)
channels = ["#test"]       # channels to join (after probation)
autojoin = true            # auto-join channels on ready (default: true)
password = ""              # IRC server password (optional, for PASS command)

CertFP Authentication

The bouncer supports client certificate fingerprint (CertFP) authentication via SASL EXTERNAL. Each certificate is unique per (network, nick) pair and stored as a combined PEM file at {data_dir}/certs/{network}/{nick}.pem.

Authentication Cascade

When connecting, the bouncer selects the strongest available method:

Priority	Method	Condition
1	SASL EXTERNAL	Stored creds + cert file exists
2	SASL PLAIN	Stored creds, no cert
3	NickServ IDENTIFY	Fallback after SASL failure

Setup

1. Generate a certificate:

   /msg *bouncer GENCERT libera
   

   This creates an EC P-256 self-signed cert (10-year validity) and auto-sends NickServ CERT ADD <fingerprint> if the network is connected.

2. Reconnect to use CertFP:

   /msg *bouncer RECONNECT libera
   

   The bouncer will now present the client certificate during TLS and authenticate via SASL EXTERNAL.

3. Verify the fingerprint is registered:

   /msg *bouncer CERTFP libera
   

Certificate Storage

Certificates are stored alongside the config file:

{data_dir}/certs/
  libera/
    fabesune.pem     # cert + private key (chmod 600)
  oftc/
    mynick.pem

Bouncer Commands

Send a PRIVMSG to *bouncer (or bouncer) from your IRC client to inspect and control the bouncer. All commands are case-insensitive.

Responses arrive as NOTICE messages from *bouncer.

Inspection

Command	Description
HELP	List available commands
STATUS	Overview: state, nick, host per network
INFO <network>	Detailed info for one network (state, server, channels, creds)
UPTIME	Bouncer uptime since process start
NETWORKS	List all configured networks with state
CREDS [network]	NickServ credential status (all or per-network)
CHANNELS [network]	List joined channels with topics (all or per-network)
CLIENTS	List connected bouncer clients
BACKLOG [network]	Message counts per network and database size
VERSION	Bouncer and Python version

Network Control

Command	Description
CONNECT <network>	Start a disconnected network
DISCONNECT <network>	Stop a network
RECONNECT <network>	Stop and restart with a fresh identity
NICK <network> <nick>	Change nick on a network
RAW <network> <command>	Send a raw IRC command to a network

Config Management

Command	Description
REHASH	Reload config file, add/remove/reconnect networks
ADDNETWORK <name> key=val ...	Create a network at runtime
DELNETWORK <name>	Stop and remove a network
AUTOJOIN <network> +/-#channel	Add or remove channel from autojoin list

ADDNETWORK keys: host (required), port, tls (yes/no), nick, channels (comma-separated), password.

NickServ

Command	Description
IDENTIFY <network>	Force NickServ IDENTIFY with stored credentials
REGISTER <network>	Trigger NickServ registration attempt
DROPCREDS <network> [nick]	Delete stored NickServ credentials

CertFP

Command	Description
GENCERT <network> [nick]	Generate client cert, auto-register with NickServ
CERTFP [network]	Show certificate fingerprints (all or per-network)
DELCERT <network> [nick]	Delete a client certificate

Examples

/msg *bouncer HELP
/msg *bouncer STATUS
/msg *bouncer INFO libera
/msg *bouncer CHANNELS
/msg *bouncer CLIENTS
/msg *bouncer BACKLOG
/msg *bouncer VERSION
/msg *bouncer CONNECT libera
/msg *bouncer DISCONNECT libera
/msg *bouncer RECONNECT libera
/msg *bouncer NICK libera newnick
/msg *bouncer RAW libera WHOIS someuser
/msg *bouncer REHASH
/msg *bouncer ADDNETWORK oftc host=irc.oftc.net port=6697 tls=yes channels=#test
/msg *bouncer DELNETWORK oftc
/msg *bouncer AUTOJOIN libera +#newchannel
/msg *bouncer AUTOJOIN libera -#oldchannel
/msg *bouncer IDENTIFY libera
/msg *bouncer REGISTER libera
/msg *bouncer DROPCREDS libera
/msg *bouncer DROPCREDS libera oldnick
/msg *bouncer GENCERT libera
/msg *bouncer GENCERT libera fabesune
/msg *bouncer CERTFP
/msg *bouncer CERTFP libera
/msg *bouncer DELCERT libera
/msg *bouncer DELCERT libera fabesune

Example Output

[STATUS]
  libera     ready  fabesune       user/fabesune
  oftc       ready  ceraty         cloaked.user
  hackint    connecting (attempt 3)
  quakenet   ready  spetyo         --

[CHANNELS]
  libera  #test       Welcome to the test channel
  libera  #dev
  oftc    #debian     Debian support

[CLIENTS]
  myuser  127.0.0.1:54321  connected 2h 15m 3s

[BACKLOG]
  libera  1,500 messages
  oftc      842 messages
  DB size: 2.1 MB

Stopping

Press Ctrl+C or send SIGTERM. The bouncer shuts down gracefully, closing all network connections and the backlog database.