8cc57a7af4
Multiplex all networks onto a single client connection using /network suffixes on channels and nicks. PASS is now just the password (no network prefix). Channels appear as #channel/network, foreign nicks as nick/network, own nicks stay bare. New namespace.py module with pure encode/decode functions. Router tracks clients globally (not per-network), namespaces messages before delivery. Client attaches to all networks on connect, sends synthetic JOIN/TOPIC/NAMES for every channel across all networks. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
67 lines
2.3 KiB
Markdown
67 lines
2.3 KiB
Markdown
# Project: bouncer
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## Purpose
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IRC bouncer that maintains persistent connections to IRC servers through a
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SOCKS5 proxy, allowing IRC clients to connect/disconnect while keeping the
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session alive and replaying missed messages.
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## Architecture
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```
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IRC Client(s) --> [bouncer:6667] --> Router --> [SOCKS5:1080] --> IRC Server(s)
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Backlog
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(SQLite)
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```
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### Connection State Machine
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```
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DISCONNECTED -> CONNECTING -> REGISTERING -> PROBATION (15s) -> READY
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'--------------+--------------'
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(failure = backoff + retry)
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```
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- **CONNECTING**: SOCKS5 + optional TLS handshake
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- **REGISTERING**: Random nick/user/realname sent to server
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- **PROBATION**: 15s window to detect K-lines before exposing real identity
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- **READY**: Configured nick set, channels joined, clients served
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### Components
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| Module | Responsibility |
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|--------|---------------|
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| `irc.py` | IRC protocol parser/formatter (RFC 2812 subset) |
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| `config.py` | TOML configuration loading and validation |
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| `namespace.py` | `/network` suffix encode/decode for multi-network multiplexing |
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| `proxy.py` | SOCKS5 async connector with local DNS + multi-IP failover |
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| `network.py` | Server connection state machine, stealth registration |
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| `server.py` | TCP listener accepting IRC client connections |
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| `client.py` | Per-client session, PASS/NICK/USER handshake, multi-network attach |
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| `router.py` | Namespaced message routing between clients and networks |
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| `backlog.py` | SQLite message storage and replay |
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### Key Decisions
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- **asyncio**: single-threaded async for all I/O
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- **python-socks**: async SOCKS5 proxy support
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- **aiosqlite**: non-blocking SQLite for backlog
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- **No IRC library**: manual protocol handling (IRC is line-based)
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- **Markov nicks**: English bigram frequencies for pronounceable random nicks
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- **Local DNS**: resolve before SOCKS5 to handle proxies without DNS support
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- **Multi-IP**: try all resolved addresses, skip unreachable exit IPs
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## Dependencies
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| Package | Version | Purpose |
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|---------|---------|---------|
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| python-socks[asyncio] | >=2.4 | SOCKS5 proxy |
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| aiosqlite | >=0.19 | Async SQLite |
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## Requirements
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- Python 3.10+
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- SOCKS5 proxy on 127.0.0.1:1080
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