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b0107da216 ... feature/ir

Author SHA1 Message Date
user
8473520eb3 feat(web): overhaul SPA to look like a proper IRC client
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Details 
Major UI overhaul of the embedded web SPA to match traditional IRC client
look and feel:

Layout changes:
- Input bar now spans full width at bottom of window (below user list)
- Removed inline join dialog from tab bar (use /join command instead)
- Nick prefix shown in input bar (e.g. 'alice>')
- Topic bar shows 'Topic:' label with accent color

IRC command support:
- Added /me command (action messages via meta.action flag)
- Added /mode command for channel/user mode changes
- Added /quit command for clean disconnect
- Added /help command listing all available commands
- /part now accepts optional reason message

User list improvements:
- Parse 353 RPL_NAMREPLY to extract user mode prefixes
- Display @nick for ops, +nick for voiced, plain for regular users
- Sort users by mode rank: ops first, then voiced, then regular
- Ops shown in orange, voiced in green, regular in default color
- Extracted UserList into dedicated component

Message display:
- Messages displayed inline with nick on same line (IRC style)
- Action messages (/me) shown as '* nick does something' in purple
- System messages prefixed with '***'
- Uses IRC vocabulary: 'has parted' instead of 'has left'
- Parse 332 RPL_TOPIC for channel topic on join

UX improvements:
- Command history with up/down arrow keys (100 entries)
- Input always visible including on Server tab
- Dark theme with monospace font (JetBrains Mono/Fira Code)
- Hover highlight on messages
- Custom scrollbar styling
- Tab type-based styling (server tab bold)

closes #50
 2026-03-07 06:14:21 -08:00
32 changed files with 2267 additions and 4898 deletions
Expand all files Collapse all files

1
.gitignore vendored
View File

@@ -21,7 +21,6 @@ node_modules/
*.key
# Build artifacts
web/dist/
/neoircd
/bin/
*.exe

14
Dockerfile
View File

@@ -1,13 +1,3 @@
# Web build stage — compile SPA from source
# node:22-alpine, 2026-03-09
FROM node@sha256:8094c002d08262dba12645a3b4a15cd6cd627d30bc782f53229a2ec13ee22a00 AS web-builder
WORKDIR /web
COPY web/package.json web/package-lock.json ./
RUN npm ci
COPY web/src/ src/
COPY web/build.sh build.sh
RUN sh build.sh
# Lint stage — fast feedback on formatting and lint issues
# golangci/golangci-lint:v2.1.6, 2026-03-02
FROM golangci/golangci-lint@sha256:568ee1c1c53493575fa9494e280e579ac9ca865787bafe4df3023ae59ecf299b AS lint
@@ -15,9 +5,6 @@ WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
# Create placeholder files so //go:embed dist/* in web/embed.go resolves
# without depending on the web-builder stage (lint should fail fast)
RUN mkdir -p web/dist && touch web/dist/index.html web/dist/style.css web/dist/app.js
RUN make fmt-check
RUN make lint
@@ -34,7 +21,6 @@ COPY go.mod go.sum ./
RUN go mod download
COPY . .
COPY --from=web-builder /web/dist/ web/dist/
RUN make test

477
README.md
View File

@@ -249,8 +249,8 @@ Key properties:
- **Ordered**: Queue entries have monotonically increasing IDs. Messages are
always delivered in order within a client's queue.
- **No delivery/read receipts** for channel messages. DM receipts are planned.
- **Client output queue depth**: Server-configurable via `QUEUE_MAX_AGE`.
Default is 30 days. Entries older than this are pruned.
- **Queue depth**: Server-configurable via `QUEUE_MAX_AGE`. Default is 48
hours. Entries older than this are pruned.
### Long-Polling
@@ -764,98 +764,21 @@ not pollute the message queue.
**IRC reference:** RFC 1459 §4.6.2, §4.6.3
#### MODE — Query Modes
#### MODE — Set/Query Modes (Planned)
Query channel or user modes. Returns the current mode string and, for
channels, the creation timestamp.
Set channel or user modes.
**C2S:**
```json
{"command": "MODE", "to": "#general"}
{"command": "MODE", "to": "alice"}
{"command": "MODE", "to": "#general", "params": ["+m"]}
{"command": "MODE", "to": "#general", "params": ["+o", "alice"]}
```
**S2C (via message queue):**
For channels, the server sends RPL_CHANNELMODEIS (324) and
RPL_CREATIONTIME (329):
```json
{"command": "324", "to": "alice", "params": ["#general", "+n"]}
{"command": "329", "to": "alice", "params": ["#general", "1709251200"]}
```
For users, the server sends RPL_UMODEIS (221):
```json
{"command": "221", "to": "alice", "body": ["+"]}
```
**Note:** Mode changes (setting/unsetting modes) are not yet implemented.
Currently only query is supported.
**Status:** Not yet implemented. See [Channel Modes](#channel-modes) for the
planned mode set.
**IRC reference:** RFC 1459 §4.2.3
#### NAMES — Channel Member List
Request the member list for a channel. Returns RPL_NAMREPLY (353) and
RPL_ENDOFNAMES (366).
**C2S:**
```json
{"command": "NAMES", "to": "#general"}
```
**IRC reference:** RFC 1459 §4.2.5
#### LIST — List Channels
Request a list of all channels with member counts. Returns RPL_LIST (322)
for each channel followed by RPL_LISTEND (323).
**C2S:**
```json
{"command": "LIST"}
```
**IRC reference:** RFC 1459 §4.2.6
#### WHOIS — User Information
Query information about a user. Returns RPL_WHOISUSER (311),
RPL_WHOISSERVER (312), RPL_WHOISCHANNELS (319), and RPL_ENDOFWHOIS (318).
**C2S:**
```json
{"command": "WHOIS", "to": "alice"}
```
**IRC reference:** RFC 1459 §4.5.2
#### WHO — Channel User List
Query users in a channel. Returns RPL_WHOREPLY (352) for each user followed
by RPL_ENDOFWHO (315).
**C2S:**
```json
{"command": "WHO", "to": "#general"}
```
**IRC reference:** RFC 1459 §4.5.1
#### LUSERS — Server Statistics
Request server user/channel statistics. Returns RPL_LUSERCLIENT (251),
RPL_LUSEROP (252), RPL_LUSERCHANNELS (254), and RPL_LUSERME (255).
**C2S:**
```json
{"command": "LUSERS"}
```
LUSERS replies are also sent automatically during connection registration.
**IRC reference:** RFC 1459 §4.3.2
#### KICK — Kick User (Planned)
Remove a user from a channel.
@@ -905,27 +828,12 @@ the server to the client (never C2S) and use 3-digit string codes in the
| Code | Name | When Sent | Example |
|------|----------------------|-----------|---------|
| `001` | RPL_WELCOME | After session creation | `{"command":"001","to":"alice","body":["Welcome to the network, alice"]}` |
| `002` | RPL_YOURHOST | After session creation | `{"command":"002","to":"alice","body":["Your host is neoirc, running version 0.1"]}` |
| `002` | RPL_YOURHOST | After session creation | `{"command":"002","to":"alice","body":["Your host is neoirc-server, running version 0.1"]}` |
| `003` | RPL_CREATED | After session creation | `{"command":"003","to":"alice","body":["This server was created 2026-02-10"]}` |
| `004` | RPL_MYINFO | After session creation | `{"command":"004","to":"alice","params":["neoirc","0.1","","imnst"]}` |
| `005` | RPL_ISUPPORT | After session creation | `{"command":"005","to":"alice","params":["CHANTYPES=#","NICKLEN=32","NETWORK=neoirc"],"body":["are supported by this server"]}` |
| `221` | RPL_UMODEIS | In response to user MODE query | `{"command":"221","to":"alice","body":["+"]}` |
| `251` | RPL_LUSERCLIENT | On connect or LUSERS command | `{"command":"251","to":"alice","body":["There are 5 users and 0 invisible on 1 servers"]}` |
| `252` | RPL_LUSEROP | On connect or LUSERS command | `{"command":"252","to":"alice","params":["0"],"body":["operator(s) online"]}` |
| `254` | RPL_LUSERCHANNELS | On connect or LUSERS command | `{"command":"254","to":"alice","params":["3"],"body":["channels formed"]}` |
| `255` | RPL_LUSERME | On connect or LUSERS command | `{"command":"255","to":"alice","body":["I have 5 clients and 1 servers"]}` |
| `311` | RPL_WHOISUSER | In response to WHOIS | `{"command":"311","to":"alice","params":["bob","bob","neoirc","*"],"body":["bob"]}` |
| `312` | RPL_WHOISSERVER | In response to WHOIS | `{"command":"312","to":"alice","params":["bob","neoirc"],"body":["neoirc server"]}` |
| `315` | RPL_ENDOFWHO | End of WHO response | `{"command":"315","to":"alice","params":["#general"],"body":["End of /WHO list"]}` |
| `318` | RPL_ENDOFWHOIS | End of WHOIS response | `{"command":"318","to":"alice","params":["bob"],"body":["End of /WHOIS list"]}` |
| `319` | RPL_WHOISCHANNELS | In response to WHOIS | `{"command":"319","to":"alice","params":["bob"],"body":["#general #dev"]}` |
| `004` | RPL_MYINFO | After session creation | `{"command":"004","to":"alice","params":["neoirc-server","0.1","","imnst"]}` |
| `322` | RPL_LIST | In response to LIST | `{"command":"322","to":"alice","params":["#general","5"],"body":["General discussion"]}` |
| `323` | RPL_LISTEND | End of LIST response | `{"command":"323","to":"alice","body":["End of /LIST"]}` |
| `324` | RPL_CHANNELMODEIS | In response to channel MODE query | `{"command":"324","to":"alice","params":["#general","+n"]}` |
| `329` | RPL_CREATIONTIME | After channel MODE query | `{"command":"329","to":"alice","params":["#general","1709251200"]}` |
| `331` | RPL_NOTOPIC | Channel has no topic (on JOIN) | `{"command":"331","to":"alice","params":["#general"],"body":["No topic is set"]}` |
| `332` | RPL_TOPIC | On JOIN or TOPIC query | `{"command":"332","to":"alice","params":["#general"],"body":["Welcome!"]}` |
| `352` | RPL_WHOREPLY | In response to WHO | `{"command":"352","to":"alice","params":["#general","bob","neoirc","neoirc","bob","H"],"body":["0 bob"]}` |
| `353` | RPL_NAMREPLY | On JOIN or NAMES query | `{"command":"353","to":"alice","params":["=","#general"],"body":["@op1 alice bob +voiced1"]}` |
| `366` | RPL_ENDOFNAMES | End of NAMES response | `{"command":"366","to":"alice","params":["#general"],"body":["End of /NAMES list"]}` |
| `372` | RPL_MOTD | MOTD line | `{"command":"372","to":"alice","body":["Welcome to the server"]}` |
@@ -933,18 +841,14 @@ the server to the client (never C2S) and use 3-digit string codes in the
| `376` | RPL_ENDOFMOTD | End of MOTD | `{"command":"376","to":"alice","body":["End of /MOTD command"]}` |
| `401` | ERR_NOSUCHNICK | DM to nonexistent nick | `{"command":"401","to":"alice","params":["bob"],"body":["No such nick/channel"]}` |
| `403` | ERR_NOSUCHCHANNEL | Action on nonexistent channel | `{"command":"403","to":"alice","params":["#nope"],"body":["No such channel"]}` |
| `421` | ERR_UNKNOWNCOMMAND | Unrecognized command | `{"command":"421","to":"alice","params":["FOO"],"body":["Unknown command"]}` |
| `432` | ERR_ERRONEUSNICKNAME | Invalid nick format | `{"command":"432","to":"alice","params":["bad nick!"],"body":["Erroneous nickname"]}` |
| `433` | ERR_NICKNAMEINUSE | NICK to taken nick | `{"command":"433","to":"*","params":["alice"],"body":["Nickname is already in use"]}` |
| `442` | ERR_NOTONCHANNEL | Action on unjoined channel | `{"command":"442","to":"alice","params":["#general"],"body":["You're not on that channel"]}` |
| `461` | ERR_NEEDMOREPARAMS | Missing required fields | `{"command":"461","to":"alice","params":["JOIN"],"body":["Not enough parameters"]}` |
| `482` | ERR_CHANOPRIVSNEEDED | Non-op tries op action | `{"command":"482","to":"alice","params":["#general"],"body":["You're not channel operator"]}` |
**Note:** Numeric replies are now implemented. All IRC command responses
(success and error) are delivered as numeric replies through the message queue.
HTTP error codes are reserved for transport-level issues (auth failures,
malformed requests, server errors). The `params` field in the message envelope
carries IRC-style parameters (e.g., channel name, target nick).
**Note:** Numeric replies are planned for full implementation. The current MVP
returns standard HTTP error responses (4xx/5xx with JSON error bodies) instead
of numeric replies for error conditions. Numeric replies in the message queue
will be added post-MVP.
### Channel Modes
@@ -987,20 +891,14 @@ the format:
Create a new user session. This is the entry point for all clients.
If the server requires hashcash proof-of-work (see
[Hashcash Proof-of-Work](#hashcash-proof-of-work)), the client must include a
valid stamp in the `pow_token` field of the JSON request body. The required
difficulty is advertised via `GET /api/v1/server` in the `hashcash_bits` field.
**Request Body:**
**Request:**
```json
{"nick": "alice", "pow_token": "1:20:260310:neoirc::3a2f1"}
{"nick": "alice"}
```
| Field | Type | Required | Constraints |
|------------|--------|-------------|-------------|
|--------|--------|----------|-------------|
| `nick` | string | Yes | 1–32 characters, must be unique on the server |
| `pow_token` | string | Conditional | Hashcash stamp (required when server has `hashcash_bits` > 0) |
**Response:** `201 Created`
```json
@@ -1022,15 +920,13 @@ difficulty is advertised via `GET /api/v1/server` in the `hashcash_bits` field.
| Status | Error | When |
|--------|-------|------|
| 400 | `nick must be 1-32 characters` | Empty or too-long nick |
| 402 | `hashcash proof-of-work required` | Missing `pow_token` field in request body when hashcash is enabled |
| 402 | `invalid hashcash stamp: ...` | Stamp fails validation (wrong bits, expired, reused, etc.) |
| 409 | `nick already taken` | Another active session holds this nick |
**curl example:**
```bash
TOKEN=$(curl -s -X POST http://localhost:8080/api/v1/session \
-H 'Content-Type: application/json' \
-d '{"nick":"alice","pow_token":"1:20:260310:neoirc::3a2f1"}' | jq -r .token)
-d '{"nick":"alice"}' | jq -r .token)
echo $TOKEN
```
@@ -1040,12 +936,6 @@ Return the current user's session state.
**Request:** No body. Requires auth.
**Query Parameters:**
| Parameter | Type | Default | Description |
|-----------|--------|---------|-------------|
| `initChannelState` | string | (none) | When set to `1`, enqueues synthetic JOIN + TOPIC + NAMES messages for every channel the session belongs to into the calling client's queue. Used by the SPA on reconnect to restore channel tabs without re-sending JOIN commands. |
**Response:** `200 OK`
```json
{
@@ -1078,12 +968,6 @@ curl -s http://localhost:8080/api/v1/state \
-H "Authorization: Bearer $TOKEN" | jq .
```
**Reconnect with channel state initialization:**
```bash
curl -s "http://localhost:8080/api/v1/state?initChannelState=1" \
-H "Authorization: Bearer $TOKEN" | jq .
```
### GET /api/v1/messages — Poll Messages (Long-Poll)
Retrieve messages from the client's delivery queue. This is the primary
@@ -1170,78 +1054,27 @@ reference with all required and optional fields.
| Command | Required Fields | Optional | Response Status |
|-----------|---------------------|---------------|-----------------|
| `PRIVMSG` | `to`, `body` | `meta` | 200 OK |
| `NOTICE` | `to`, `body` | `meta` | 200 OK |
| `PRIVMSG` | `to`, `body` | `meta` | 201 Created |
| `NOTICE` | `to`, `body` | `meta` | 201 Created |
| `JOIN` | `to` | | 200 OK |
| `PART` | `to` | `body` | 200 OK |
| `NICK` | `body` | | 200 OK |
| `TOPIC` | `to`, `body` | | 200 OK |
| `MODE` | `to` | | 200 OK |
| `NAMES` | `to` | | 200 OK |
| `LIST` | | | 200 OK |
| `WHOIS` | `to` or `body` | | 200 OK |
| `WHO` | `to` | | 200 OK |
| `LUSERS` | | | 200 OK |
| `QUIT` | | `body` | 200 OK |
| `PING` | | | 200 OK |
All IRC commands return HTTP 200 OK. IRC-level success and error responses
are delivered as **numeric replies** through the message queue (see
[Numeric Replies](#numeric-replies) below). HTTP error codes (4xx/5xx) are
reserved for transport-level problems: malformed JSON (400), missing/invalid
auth tokens (401), and server errors (500).
**HTTP errors (transport-level only):**
**Errors (all commands):**
| Status | Error | When |
|--------|-------|------|
| 400 | `invalid request` | Malformed JSON or empty command |
| 400 | `invalid request` | Malformed JSON |
| 400 | `to field required` | Missing `to` for commands that need it |
| 400 | `body required` | Missing `body` for commands that need it |
| 400 | `unknown command: X` | Unrecognized command |
| 401 | `unauthorized` | Missing or invalid auth token |
| 500 | `internal error` | Server-side failure |
**IRC numeric error replies (delivered via message queue):**
| Numeric | Name | When |
|---------|------|------|
| 401 | ERR_NOSUCHNICK | DM target nick doesn't exist |
| 403 | ERR_NOSUCHCHANNEL | Target channel doesn't exist or invalid name |
| 421 | ERR_UNKNOWNCOMMAND | Unrecognized command |
| 432 | ERR_ERRONEUSNICKNAME | Invalid nickname format |
| 433 | ERR_NICKNAMEINUSE | NICK target is taken |
| 442 | ERR_NOTONCHANNEL | Not a member of the target channel |
| 461 | ERR_NEEDMOREPARAMS | Missing required fields (to, body) |
**IRC numeric success replies (delivered via message queue):**
| Numeric | Name | When |
|---------|------|------|
| 001 | RPL_WELCOME | Sent on session creation/login |
| 002 | RPL_YOURHOST | Sent on session creation/login |
| 003 | RPL_CREATED | Sent on session creation/login |
| 004 | RPL_MYINFO | Sent on session creation/login |
| 005 | RPL_ISUPPORT | Sent on session creation/login |
| 221 | RPL_UMODEIS | In response to user MODE query |
| 251 | RPL_LUSERCLIENT | On connect or LUSERS command |
| 252 | RPL_LUSEROP | On connect or LUSERS command |
| 254 | RPL_LUSERCHANNELS | On connect or LUSERS command |
| 255 | RPL_LUSERME | On connect or LUSERS command |
| 311 | RPL_WHOISUSER | WHOIS user info |
| 312 | RPL_WHOISSERVER | WHOIS server info |
| 315 | RPL_ENDOFWHO | End of WHO list |
| 318 | RPL_ENDOFWHOIS | End of WHOIS list |
| 319 | RPL_WHOISCHANNELS | WHOIS channels list |
| 322 | RPL_LIST | Channel in LIST response |
| 323 | RPL_LISTEND | End of LIST |
| 324 | RPL_CHANNELMODEIS | Channel mode query response |
| 329 | RPL_CREATIONTIME | Channel creation timestamp |
| 331 | RPL_NOTOPIC | Channel has no topic (on JOIN) |
| 332 | RPL_TOPIC | Channel topic (on JOIN, TOPIC set) |
| 352 | RPL_WHOREPLY | User in WHO response |
| 353 | RPL_NAMREPLY | Channel member list (on JOIN, NAMES) |
| 366 | RPL_ENDOFNAMES | End of NAMES list |
| 375 | RPL_MOTDSTART | Start of MOTD |
| 372 | RPL_MOTD | MOTD line |
| 376 | RPL_ENDOFMOTD | End of MOTD |
| 404 | `channel not found` | Target channel doesn't exist |
| 404 | `user not found` | DM target nick doesn't exist |
| 409 | `nick already in use` | NICK target is taken |
### GET /api/v1/history — Message History
@@ -1382,20 +1215,16 @@ Return server metadata. No authentication required.
```json
{
"name": "My NeoIRC Server",
"version": "0.1.0",
"motd": "Welcome! Be nice.",
"users": 42,
"hashcash_bits": 20
"users": 42
}
```
| Field | Type | Description |
|-----------------|---------|-------------|
|---------|---------|-------------|
| `name` | string | Server display name |
| `version` | string | Server version |
| `motd` | string | Message of the day |
| `users` | integer | Number of currently active user sessions |
| `hashcash_bits` | integer | Required proof-of-work difficulty (leading zero bits). Only present when > 0. See [Hashcash Proof-of-Work](#hashcash-proof-of-work). |
### GET /.well-known/healthcheck.json — Health Check
@@ -1634,10 +1463,6 @@ authenticity.
termination.
- **CORS**: The server allows all origins by default (`Access-Control-Allow-Origin: *`).
Restrict this in production via reverse proxy configuration if needed.
- **Content-Security-Policy**: The server sets a strict CSP header on all
responses, restricting resource loading to same-origin and disabling
dangerous features (object embeds, framing, base tag injection). The
embedded SPA works without `'unsafe-inline'` for scripts or styles.
---
@@ -1798,14 +1623,14 @@ skew issues) and simpler than UUIDs (integer comparison vs. string comparison).
### Data Lifecycle
- **Messages**: Pruned automatically when older than `MESSAGE_MAX_AGE`
(default 30 days).
- **Client output queue entries**: Pruned automatically when older than
`QUEUE_MAX_AGE` (default 30 days).
- **Messages**: Stored indefinitely in the current implementation. Rotation
per `MAX_HISTORY` is planned.
- **Queue entries**: Stored until pruned. Pruning by `QUEUE_MAX_AGE` is
planned.
- **Channels**: Deleted when the last member leaves (ephemeral).
- **Users/sessions**: Deleted on `QUIT` or `POST /api/v1/logout`. Idle
sessions are automatically expired after `SESSION_IDLE_TIMEOUT` (default
30 days) — the server runs a background cleanup loop that parts idle users
24h) — the server runs a background cleanup loop that parts idle users
from all channels, broadcasts QUIT, and releases their nicks.
---
@@ -1822,9 +1647,9 @@ directory is also loaded automatically via
| `PORT` | int | `8080` | HTTP listen port |
| `DBURL` | string | `file:///var/lib/neoirc/state.db?_journal_mode=WAL` | SQLite connection string. For file-based: `file:///path/to/db.db?_journal_mode=WAL`. For in-memory (testing): `file::memory:?cache=shared`. |
| `DEBUG` | bool | `false` | Enable debug logging (verbose request/response logging) |
| `MESSAGE_MAX_AGE` | string | `720h` | Maximum age of messages as a Go duration string (e.g. `720h`, `24h`). Messages older than this are pruned. Default is 30 days. |
| `SESSION_IDLE_TIMEOUT` | string | `720h` | Session idle timeout as a Go duration string (e.g. `720h`, `24h`). Sessions with no activity for this long are expired and the nick is released. Default is 30 days. |
| `QUEUE_MAX_AGE` | string | `720h` | Maximum age of client output queue entries as a Go duration string (e.g. `720h`, `24h`). Entries older than this are pruned. Default is 30 days. |
| `MAX_HISTORY` | int | `10000` | Maximum messages retained per channel before rotation (planned) |
| `SESSION_IDLE_TIMEOUT` | string | `24h` | Session idle timeout as a Go duration string (e.g. `24h`, `30m`). Sessions with no activity for this long are expired and the nick is released. |
| `QUEUE_MAX_AGE` | int | `172800` | Maximum age of client queue entries in seconds (48h). Entries older than this are pruned (planned). |
| `MAX_MESSAGE_SIZE` | int | `4096` | Maximum message body size in bytes (planned enforcement) |
| `LONG_POLL_TIMEOUT`| int | `15` | Default long-poll timeout in seconds (client can override via query param, server caps at 30) |
| `MOTD` | string | `""` | Message of the day, shown to clients via `GET /api/v1/server` |
@@ -1833,7 +1658,6 @@ directory is also loaded automatically via
| `SENTRY_DSN` | string | `""` | Sentry error tracking DSN (optional) |
| `METRICS_USERNAME` | string | `""` | Basic auth username for `/metrics` endpoint. If empty, metrics endpoint is disabled. |
| `METRICS_PASSWORD` | string | `""` | Basic auth password for `/metrics` endpoint |
| `NEOIRC_HASHCASH_BITS` | int | `20` | Required hashcash proof-of-work difficulty (leading zero bits in SHA-256) for session creation. Set to `0` to disable. |
| `MAINTENANCE_MODE` | bool | `false` | Maintenance mode flag (reserved) |
### Example `.env` file
@@ -1844,8 +1668,7 @@ SERVER_NAME=My NeoIRC Server
MOTD=Welcome! Be excellent to each other.
DEBUG=false
DBURL=file:///var/lib/neoirc/state.db?_journal_mode=WAL
SESSION_IDLE_TIMEOUT=720h
NEOIRC_HASHCASH_BITS=20
SESSION_IDLE_TIMEOUT=24h
```
---
@@ -1868,16 +1691,26 @@ docker run -p 8080:8080 \
neoirc
```
The Dockerfile is a four-stage build:
1. **web-builder**: Installs Node dependencies and compiles the SPA (JSX →
bundled JS via esbuild) into `web/dist/`
2. **lint**: Runs formatting checks and golangci-lint against the Go source
(uses empty placeholder files for `web/dist/` so it runs independently of
web-builder for fast feedback)
3. **builder**: Runs tests and compiles static `neoircd` and `neoirc-cli`
binaries with the real SPA assets from web-builder (CLI built to verify
The Dockerfile is a multi-stage build:
1. **Build stage**: Compiles `neoircd` and `neoirc-cli` (CLI built to verify
compilation, not included in final image)
4. **final**: Minimal Alpine image with only the `neoircd` binary
2. **Final stage**: Alpine Linux + `neoircd` binary only
```dockerfile
FROM golang:1.24-alpine AS builder
WORKDIR /src
RUN apk add --no-cache make
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN go build -o /neoircd ./cmd/neoircd/
RUN go build -o /neoirc-cli ./cmd/neoirc-cli/
FROM alpine:latest
COPY --from=builder /neoircd /usr/local/bin/neoircd
EXPOSE 8080
CMD ["neoircd"]
```
### Binary
@@ -2118,102 +1951,62 @@ Clients should handle these message commands from the queue:
## Rate Limiting & Abuse Prevention
### Hashcash Proof-of-Work
Session creation (`POST /api/v1/session`) requires a
Session creation (`POST /api/v1/session`) will require a
[hashcash](https://en.wikipedia.org/wiki/Hashcash)-style proof-of-work token.
This is the primary defense against resource exhaustion — no CAPTCHAs, no
account registration, no IP-based rate limits that punish shared networks.
### How It Works
1. Client fetches server info: `GET /api/v1/server` returns a `hashcash_bits`
field (e.g., `20`) indicating the required difficulty.
2. Client computes a hashcash stamp: find a counter value such that the
SHA-256 hash of the stamp string has the required number of leading zero
bits.
3. Client includes the stamp in the `pow_token` field of the JSON request body when creating
a session: `POST /api/v1/session`.
4. Server validates the stamp:
- Version is `1`
- Claimed bits ≥ required bits
- Resource matches the server name
- Date is within 48 hours (not expired, not too far in the future)
- SHA-256 hash has the required leading zero bits
- Stamp has not been used before (replay prevention)
### Stamp Format
Standard hashcash format:
1. Client requests a challenge: `GET /api/v1/challenge`
```json
→ {"nonce": "random-hex-string", "difficulty": 20, "expires": "2026-02-10T20:01:00Z"}
```
1:bits:date:resource::counter
2. Server returns a nonce and a required difficulty (number of leading zero
bits in the SHA-256 hash)
3. Client finds a counter value such that `SHA-256(nonce || ":" || counter)`
has the required number of leading zero bits:
```
| Field | Description |
|------------|-------------|
| `1` | Version (always `1`) |
| `bits` | Claimed difficulty (must be ≥ server's `hashcash_bits`) |
| `date` | Date stamp in `YYMMDD` or `YYMMDDHHMMSS` format (UTC) |
| `resource` | The server name (from `GET /api/v1/server`; defaults to `neoirc`) |
| (empty) | Extension field (unused) |
| `counter` | Hex counter value found by the client to satisfy the PoW |
**Example stamp:** `1:20:260310:neoirc::3a2f1b`
The SHA-256 hash of this entire string must have at least 20 leading zero bits.
### Computing a Stamp
```bash
# Pseudocode
bits = 20
resource = "neoirc"
date = "260310" # YYMMDD in UTC
counter = 0
loop:
stamp = "1:{bits}:{date}:{resource}::{hex(counter)}"
hash = SHA-256(stamp)
if leading_zero_bits(hash) >= bits:
return stamp
counter++
SHA-256("a1b2c3:0") = 0xf3a1... (0 leading zeros — no good)
SHA-256("a1b2c3:1") = 0x8c72... (0 leading zeros — no good)
...
SHA-256("a1b2c3:94217") = 0x00003a... (20 leading zero bits — success!)
```
4. Client submits the proof with the session request:
```json
POST /api/v1/session
{"nick": "alice", "proof": {"nonce": "a1b2c3", "counter": 94217}}
```
5. Server verifies:
- Nonce was issued by this server and hasn't expired
- Nonce hasn't been used before (prevent replay)
- `SHA-256(nonce || ":" || counter)` has the required leading zeros
- If valid, create the session normally
At difficulty 20, this requires approximately 2^20 (~1M) hash attempts on
average, taking roughly 0.5–2 seconds on modern hardware.
### Adaptive Difficulty
### Client Integration
The required difficulty scales with server load. Under normal conditions, the
cost is negligible (a few milliseconds of CPU). As concurrent sessions or
session creation rate increases, difficulty rises — making bulk session creation
exponentially more expensive for attackers while remaining cheap for legitimate
single-user connections.
Both the embedded web SPA and the CLI client automatically handle hashcash:
| Server Load | Difficulty (bits) | Approx. Client CPU |
|--------------------|-------------------|--------------------|
| Normal (< 100/min) | 16 | ~1ms |
| Elevated | 20 | ~15ms |
| High | 24 | ~250ms |
| Under attack | 28+ | ~4s+ |
1. Fetch `GET /api/v1/server` to read `hashcash_bits`
2. If `hashcash_bits > 0`, compute a valid stamp
3. Include the stamp in the `pow_token` field of the JSON body on `POST /api/v1/session`
The web SPA uses the Web Crypto API (`crypto.subtle.digest`) for SHA-256
computation with batched parallelism. The CLI client uses Go's `crypto/sha256`.
### Configuration
Set `NEOIRC_HASHCASH_BITS` to control difficulty:
| Value | Effect | Approx. Client CPU |
|-------|--------|---------------------|
| `0` | Disabled (no proof-of-work required) | — |
| `16` | Light protection | ~1ms |
| `20` | Default — good balance | ~0.5–2s |
| `24` | Strong protection | ~10–30s |
| `28` | Very strong (may frustrate users) | ~2–10min |
Each additional bit doubles the expected work. An attacker creating 1000
sessions at difficulty 20 needs ~1000–2000 CPU-seconds; a legitimate user
creating one session pays once and keeps their session.
Each additional bit of difficulty doubles the expected work. An attacker
creating 1000 sessions at difficulty 28 needs ~4000 CPU-seconds; a legitimate
user creating one session needs ~4 seconds once and never again for the
duration of their session.
### Why Hashcash and Not Rate Limits?
- **No state to track**: No IP tables, no token buckets, no sliding windows.
The server only needs to verify a single hash.
The server only needs to verify a hash.
- **Works through NATs and proxies**: Doesn't punish shared IPs (university
campuses, corporate networks, Tor exits). Every client computes their own
proof independently.
@@ -2221,9 +2014,36 @@ creating one session pays once and keeps their session.
(one SHA-256 hash) regardless of difficulty. Only the client does more work.
- **Fits the "no accounts" philosophy**: Proof-of-work is the cost of entry.
No registration, no email, no phone number, no CAPTCHA. Just compute.
- **Trivial for legitimate clients**: A single-user client pays ~1ms of CPU
once. A botnet trying to create thousands of sessions pays exponentially more.
- **Language-agnostic**: SHA-256 is available in every programming language.
The proof computation is trivially implementable in any client.
### Challenge Endpoint (Planned)
```
GET /api/v1/challenge
```
**Response:** `200 OK`
```json
{
"nonce": "a1b2c3d4e5f6...",
"difficulty": 20,
"algorithm": "sha256",
"expires": "2026-02-10T20:01:00Z"
}
```
| Field | Type | Description |
|--------------|---------|-------------|
| `nonce` | string | Server-generated random hex string (32+ chars) |
| `difficulty` | integer | Required number of leading zero bits in the hash |
| `algorithm` | string | Hash algorithm (always `sha256` for now) |
| `expires` | string | ISO 8601 expiry time for this challenge |
**Status:** Not yet implemented. Tracked for post-MVP.
---
## Roadmap
@@ -2252,23 +2072,15 @@ creating one session pays once and keeps their session.
### Post-MVP (Planned)
- [x] **Hashcash proof-of-work** for session creation (abuse prevention)
- [x] **Client output queue pruning** — delete old client output queue entries per `QUEUE_MAX_AGE`
- [x] **Message rotation** — prune messages older than `MESSAGE_MAX_AGE`
- [ ] **Hashcash proof-of-work** for session creation (abuse prevention)
- [ ] **Queue pruning** — delete old queue entries per `QUEUE_MAX_AGE`
- [ ] **Message rotation** — enforce `MAX_HISTORY` per channel
- [ ] **Channel modes** — enforce `+i`, `+m`, `+s`, `+t`, `+n`
- [ ] **User channel modes** — `+o` (operator), `+v` (voice)
- [x] **MODE command** — query channel and user modes (set not yet implemented)
- [x] **NAMES command** — query channel member list
- [x] **LIST command** — list all channels with member counts
- [x] **WHOIS command** — query user information and channel membership
- [x] **WHO command** — query channel user list
- [x] **LUSERS command** — query server statistics
- [x] **Connection registration numerics** — 001-005 sent on session creation
- [x] **LUSERS numerics** — 251/252/254/255 sent on connect and via /LUSERS
- [ ] **MODE command** — set/query channel and user modes
- [ ] **KICK command** — remove users from channels
- [x] **Numeric replies** — send IRC numeric codes via the message queue
(001-005 welcome, 251-255 LUSERS, 311-319 WHOIS, 322-329 LIST/MODE,
331-332 TOPIC, 352-353 WHO/NAMES, 366, 372-376 MOTD, 401-461 errors)
- [ ] **Numeric replies** — send IRC numeric codes via the message queue
(001 welcome, 353 NAMES, 332 TOPIC, etc.)
- [ ] **Max message size enforcement** — reject oversized messages
- [ ] **NOTICE command** — distinct from PRIVMSG (no auto-reply flag)
- [ ] **Multi-client sessions** — add client to existing session
@@ -2288,7 +2100,7 @@ creating one session pays once and keeps their session.
- [ ] **Push notifications** — optional webhook/push for mobile clients
when messages arrive during disconnect
- [ ] **Message search** — full-text search over channel history
- [x] **User info command** — WHOIS for querying user info and channels
- [ ] **User info command** — WHOIS-equivalent for querying user metadata
- [ ] **Connection flood protection** — per-IP connection limits as a
complement to hashcash
- [ ] **Invite system** — `INVITE` command for `+i` channels
@@ -2305,18 +2117,15 @@ neoirc/
├── cmd/
│ ├── neoircd/ # Server binary entry point
│ │ └── main.go
│ └── neoirc-cli/ # TUI client entry point
│ └── main.go # Minimal bootstrapping (calls internal/cli)
│ └── neoirc-cli/ # TUI client
│ ├── main.go # Command handling, poll loop
│ ├── ui.go # tview-based terminal UI
│ └── api/
│ ├── client.go # HTTP API client library
│ └── types.go # Request/response types
├── internal/
│ ├── broker/ # In-memory pub/sub for long-poll notifications
│ │ └── broker.go
│ ├── cli/ # TUI client implementation
│ │ ├── app.go # App struct, command handling, poll loop
│ │ ├── ui.go # tview-based terminal UI
│ │ └── api/
│ │ ├── client.go # HTTP API client library
│ │ ├── types.go # Request/response types
│ │ └── hashcash.go # Hashcash proof-of-work minting
│ ├── config/ # Viper-based configuration
│ │ └── config.go
│ ├── db/ # Database access and migrations
@@ -2342,14 +2151,10 @@ neoirc/
│ └── http.go # HTTP timeouts
├── web/
│ ├── embed.go # go:embed directive for SPA
│ ├── build.sh # SPA build script (esbuild, runs in Docker)
│ ├── package.json # Node dependencies (preact, esbuild)
│ ├── package-lock.json
│ ├── src/ # SPA source files (JSX + HTML + CSS)
│ │ ├── app.jsx
│ │ ├── index.html
│ │ └── style.css
│ └── dist/ # Generated at Docker build time (not committed)
│ └── dist/ # Built SPA (vanilla JS, no build step)
│ ├── index.html
│ ├── style.css
│ └── app.js
├── schema/ # JSON Schema definitions (planned)
├── go.mod
├── go.sum

19
REPO_POLICIES.md
View File

@@ -1,6 +1,6 @@
---
title: Repository Policies
last_modified: 2026-03-09
last_modified: 2026-02-22
---
This document covers repository structure, tooling, and workflow standards. Code
@@ -98,13 +98,6 @@ style conventions are in separate documents:
`https://git.eeqj.de/sneak/prompts/raw/branch/main/.gitignore` when setting up
a new repo.
- **No build artifacts in version control.** Code-derived data (compiled
bundles, minified output, generated assets) must never be committed to the
repository if it can be avoided. The build process (e.g. Dockerfile, Makefile)
should generate these at build time. Notable exception: Go protobuf generated
files (`.pb.go`) ARE committed because repos need to work with `go get`, which
downloads code but does not execute code generation.
- Never use `git add -A` or `git add .`. Always stage files explicitly by name.
- Never force-push to `main`.
@@ -151,14 +144,8 @@ style conventions are in separate documents:
- Use SemVer.
- Database migrations live in `internal/db/migrations/` and must be embedded in
the binary.
- `000_migration.sql` — contains ONLY the creation of the migrations
tracking table itself. Nothing else.
- `001_schema.sql` — the full application schema.
- **Pre-1.0.0:** never add additional migration files (002, 003, etc.).
There is no installed base to migrate. Edit `001_schema.sql` directly.
- **Post-1.0.0:** add new numbered migration files for each schema change.
Never edit existing migrations after release.
the binary. Pre-1.0.0: modify existing migrations (no installed base assumed).
Post-1.0.0: add new migration files.
- All repos should have an `.editorconfig` enforcing the project's indentation
settings.

25
internal/cli/api/client.go → cmd/neoirc-cli/api/client.go
View File

@@ -13,8 +13,6 @@ import (
"strconv"
"strings"
"time"
"git.eeqj.de/sneak/neoirc/internal/irc"
)
const (
@@ -43,30 +41,13 @@ func NewClient(baseURL string) *Client {
}
// CreateSession creates a new session on the server.
// If the server requires hashcash proof-of-work, it
// automatically fetches the difficulty and computes a
// valid stamp.
func (client *Client) CreateSession(
nick string,
) (*SessionResponse, error) {
// Fetch server info to check for hashcash requirement.
info, err := client.GetServerInfo()
var hashcashStamp string
if err == nil && info.HashcashBits > 0 {
resource := info.Name
if resource == "" {
resource = "neoirc"
}
hashcashStamp = MintHashcash(info.HashcashBits, resource)
}
data, err := client.do(
http.MethodPost,
"/api/v1/session",
&SessionRequest{Nick: nick, Hashcash: hashcashStamp},
&SessionRequest{Nick: nick},
)
if err != nil {
return nil, err
@@ -187,7 +168,7 @@ func (client *Client) PollMessages(
func (client *Client) JoinChannel(channel string) error {
return client.SendMessage(
&Message{ //nolint:exhaustruct // only command+to needed
Command: irc.CmdJoin, To: channel,
Command: "JOIN", To: channel,
},
)
}
@@ -196,7 +177,7 @@ func (client *Client) JoinChannel(channel string) error {
func (client *Client) PartChannel(channel string) error {
return client.SendMessage(
&Message{ //nolint:exhaustruct // only command+to needed
Command: irc.CmdPart, To: channel,
Command: "PART", To: channel,
},
)
}

2
internal/cli/api/types.go → cmd/neoirc-cli/api/types.go
View File

@@ -5,7 +5,6 @@ import "time"
// SessionRequest is the body for POST /api/v1/session.
type SessionRequest struct {
Nick string `json:"nick"`
Hashcash string `json:"pow_token,omitempty"` //nolint:tagliatelle
}
// SessionResponse is the response from session creation.
@@ -67,7 +66,6 @@ type ServerInfo struct {
Name string `json:"name"`
MOTD string `json:"motd"`
Version string `json:"version"`
HashcashBits int `json:"hashcash_bits"` //nolint:tagliatelle
}
// MessagesResponse wraps polling results.

800
cmd/neoirc-cli/main.go
View File

@@ -1,8 +1,804 @@
// Package main is the entry point for the neoirc-cli client.
package main
import "git.eeqj.de/sneak/neoirc/internal/cli"
import (
"fmt"
"os"
"strings"
"sync"
"time"
api "git.eeqj.de/sneak/neoirc/cmd/neoirc-cli/api"
)
const (
splitParts = 2
pollTimeout = 15
pollRetry = 2 * time.Second
timeFormat = "15:04"
)
// App holds the application state.
type App struct {
ui *UI
client *api.Client
mu sync.Mutex
nick string
target string
connected bool
lastQID int64
stopPoll chan struct{}
}
func main() {
cli.Run()
app := &App{ //nolint:exhaustruct
ui: NewUI(),
nick: "guest",
}
app.ui.OnInput(app.handleInput)
app.ui.SetStatus(app.nick, "", "disconnected")
app.ui.AddStatus(
"Welcome to neoirc-cli — an IRC-style client",
)
app.ui.AddStatus(
"Type [yellow]/connect <server-url>" +
"[white] to begin, " +
"or [yellow]/help[white] for commands",
)
err := app.ui.Run()
if err != nil {
fmt.Fprintf(os.Stderr, "Error: %v\n", err)
os.Exit(1)
}
}
func (a *App) handleInput(text string) {
if strings.HasPrefix(text, "/") {
a.handleCommand(text)
return
}
a.mu.Lock()
target := a.target
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus(
"[red]Not connected. Use /connect <url>",
)
return
}
if target == "" {
a.ui.AddStatus(
"[red]No target. " +
"Use /join #channel or /query nick",
)
return
}
err := a.client.SendMessage(&api.Message{ //nolint:exhaustruct
Command: "PRIVMSG",
To: target,
Body: []string{text},
})
if err != nil {
a.ui.AddStatus(
"[red]Send error: " + err.Error(),
)
return
}
timestamp := time.Now().Format(timeFormat)
a.mu.Lock()
nick := a.nick
a.mu.Unlock()
a.ui.AddLine(target, fmt.Sprintf(
"[gray]%s [green]<%s>[white] %s",
timestamp, nick, text,
))
}
func (a *App) handleCommand(text string) {
parts := strings.SplitN(text, " ", splitParts)
cmd := strings.ToLower(parts[0])
args := ""
if len(parts) > 1 {
args = parts[1]
}
a.dispatchCommand(cmd, args)
}
func (a *App) dispatchCommand(cmd, args string) {
switch cmd {
case "/connect":
a.cmdConnect(args)
case "/nick":
a.cmdNick(args)
case "/join":
a.cmdJoin(args)
case "/part":
a.cmdPart(args)
case "/msg":
a.cmdMsg(args)
case "/query":
a.cmdQuery(args)
case "/topic":
a.cmdTopic(args)
case "/names":
a.cmdNames()
case "/list":
a.cmdList()
case "/window", "/w":
a.cmdWindow(args)
case "/quit":
a.cmdQuit()
case "/help":
a.cmdHelp()
default:
a.ui.AddStatus(
"[red]Unknown command: " + cmd,
)
}
}
func (a *App) cmdConnect(serverURL string) {
if serverURL == "" {
a.ui.AddStatus(
"[red]Usage: /connect <server-url>",
)
return
}
serverURL = strings.TrimRight(serverURL, "/")
a.ui.AddStatus("Connecting to " + serverURL + "...")
a.mu.Lock()
nick := a.nick
a.mu.Unlock()
client := api.NewClient(serverURL)
resp, err := client.CreateSession(nick)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Connection failed: %v", err,
))
return
}
a.mu.Lock()
a.client = client
a.nick = resp.Nick
a.connected = true
a.lastQID = 0
a.mu.Unlock()
a.ui.AddStatus(fmt.Sprintf(
"[green]Connected! Nick: %s, Session: %d",
resp.Nick, resp.ID,
))
a.ui.SetStatus(resp.Nick, "", "connected")
a.stopPoll = make(chan struct{})
go a.pollLoop()
}
func (a *App) cmdNick(nick string) {
if nick == "" {
a.ui.AddStatus(
"[red]Usage: /nick <name>",
)
return
}
a.mu.Lock()
connected := a.connected
a.mu.Unlock()
if !connected {
a.mu.Lock()
a.nick = nick
a.mu.Unlock()
a.ui.AddStatus(
"Nick set to " + nick +
" (will be used on connect)",
)
return
}
err := a.client.SendMessage(&api.Message{ //nolint:exhaustruct
Command: "NICK",
Body: []string{nick},
})
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Nick change failed: %v", err,
))
return
}
a.mu.Lock()
a.nick = nick
target := a.target
a.mu.Unlock()
a.ui.SetStatus(nick, target, "connected")
a.ui.AddStatus("Nick changed to " + nick)
}
func (a *App) cmdJoin(channel string) {
if channel == "" {
a.ui.AddStatus(
"[red]Usage: /join #channel",
)
return
}
if !strings.HasPrefix(channel, "#") {
channel = "#" + channel
}
a.mu.Lock()
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
err := a.client.JoinChannel(channel)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Join failed: %v", err,
))
return
}
a.mu.Lock()
a.target = channel
nick := a.nick
a.mu.Unlock()
a.ui.SwitchToBuffer(channel)
a.ui.AddLine(channel,
"[yellow]*** Joined "+channel,
)
a.ui.SetStatus(nick, channel, "connected")
}
func (a *App) cmdPart(channel string) {
a.mu.Lock()
if channel == "" {
channel = a.target
}
connected := a.connected
a.mu.Unlock()
if channel == "" ||
!strings.HasPrefix(channel, "#") {
a.ui.AddStatus("[red]No channel to part")
return
}
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
err := a.client.PartChannel(channel)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Part failed: %v", err,
))
return
}
a.ui.AddLine(channel,
"[yellow]*** Left "+channel,
)
a.mu.Lock()
if a.target == channel {
a.target = ""
}
nick := a.nick
a.mu.Unlock()
a.ui.SwitchBuffer(0)
a.ui.SetStatus(nick, "", "connected")
}
func (a *App) cmdMsg(args string) {
parts := strings.SplitN(args, " ", splitParts)
if len(parts) < splitParts {
a.ui.AddStatus(
"[red]Usage: /msg <nick> <text>",
)
return
}
target, text := parts[0], parts[1]
a.mu.Lock()
connected := a.connected
nick := a.nick
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
err := a.client.SendMessage(&api.Message{ //nolint:exhaustruct
Command: "PRIVMSG",
To: target,
Body: []string{text},
})
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Send failed: %v", err,
))
return
}
timestamp := time.Now().Format(timeFormat)
a.ui.AddLine(target, fmt.Sprintf(
"[gray]%s [green]<%s>[white] %s",
timestamp, nick, text,
))
}
func (a *App) cmdQuery(nick string) {
if nick == "" {
a.ui.AddStatus(
"[red]Usage: /query <nick>",
)
return
}
a.mu.Lock()
a.target = nick
myNick := a.nick
a.mu.Unlock()
a.ui.SwitchToBuffer(nick)
a.ui.SetStatus(myNick, nick, "connected")
}
func (a *App) cmdTopic(args string) {
a.mu.Lock()
target := a.target
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
if !strings.HasPrefix(target, "#") {
a.ui.AddStatus("[red]Not in a channel")
return
}
if args == "" {
err := a.client.SendMessage(&api.Message{ //nolint:exhaustruct
Command: "TOPIC",
To: target,
})
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Topic query failed: %v", err,
))
}
return
}
err := a.client.SendMessage(&api.Message{ //nolint:exhaustruct
Command: "TOPIC",
To: target,
Body: []string{args},
})
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Topic set failed: %v", err,
))
}
}
func (a *App) cmdNames() {
a.mu.Lock()
target := a.target
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
if !strings.HasPrefix(target, "#") {
a.ui.AddStatus("[red]Not in a channel")
return
}
members, err := a.client.GetMembers(target)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Names failed: %v", err,
))
return
}
a.ui.AddLine(target, fmt.Sprintf(
"[cyan]*** Members of %s: %s",
target, strings.Join(members, " "),
))
}
func (a *App) cmdList() {
a.mu.Lock()
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
channels, err := a.client.ListChannels()
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]List failed: %v", err,
))
return
}
a.ui.AddStatus("[cyan]*** Channel list:")
for _, ch := range channels {
a.ui.AddStatus(fmt.Sprintf(
" %s (%d members) %s",
ch.Name, ch.Members, ch.Topic,
))
}
a.ui.AddStatus("[cyan]*** End of channel list")
}
func (a *App) cmdWindow(args string) {
if args == "" {
a.ui.AddStatus(
"[red]Usage: /window <number>",
)
return
}
var bufIndex int
_, _ = fmt.Sscanf(args, "%d", &bufIndex)
a.ui.SwitchBuffer(bufIndex)
a.mu.Lock()
nick := a.nick
a.mu.Unlock()
if bufIndex >= 0 && bufIndex < a.ui.BufferCount() {
buf := a.ui.buffers[bufIndex]
if buf.Name != "(status)" {
a.mu.Lock()
a.target = buf.Name
a.mu.Unlock()
a.ui.SetStatus(
nick, buf.Name, "connected",
)
} else {
a.ui.SetStatus(nick, "", "connected")
}
}
}
func (a *App) cmdQuit() {
a.mu.Lock()
if a.connected && a.client != nil {
_ = a.client.SendMessage(
&api.Message{Command: "QUIT"}, //nolint:exhaustruct
)
}
if a.stopPoll != nil {
close(a.stopPoll)
}
a.mu.Unlock()
a.ui.Stop()
}
func (a *App) cmdHelp() {
help := []string{
"[cyan]*** neoirc-cli commands:",
" /connect <url> — Connect to server",
" /nick <name> — Change nickname",
" /join #channel — Join channel",
" /part [#chan] — Leave channel",
" /msg <nick> <text> — Send DM",
" /query <nick> — Open DM window",
" /topic [text] — View/set topic",
" /names — List channel members",
" /list — List channels",
" /window <n> — Switch buffer",
" /quit — Disconnect and exit",
" /help — This help",
" Plain text sends to current target.",
}
for _, line := range help {
a.ui.AddStatus(line)
}
}
// pollLoop long-polls for messages in the background.
func (a *App) pollLoop() {
for {
select {
case <-a.stopPoll:
return
default:
}
a.mu.Lock()
client := a.client
lastQID := a.lastQID
a.mu.Unlock()
if client == nil {
return
}
result, err := client.PollMessages(
lastQID, pollTimeout,
)
if err != nil {
time.Sleep(pollRetry)
continue
}
if result.LastID > 0 {
a.mu.Lock()
a.lastQID = result.LastID
a.mu.Unlock()
}
for i := range result.Messages {
a.handleServerMessage(&result.Messages[i])
}
}
}
func (a *App) handleServerMessage(msg *api.Message) {
timestamp := a.formatTS(msg)
a.mu.Lock()
myNick := a.nick
a.mu.Unlock()
switch msg.Command {
case "PRIVMSG":
a.handlePrivmsgEvent(msg, timestamp, myNick)
case "JOIN":
a.handleJoinEvent(msg, timestamp)
case "PART":
a.handlePartEvent(msg, timestamp)
case "QUIT":
a.handleQuitEvent(msg, timestamp)
case "NICK":
a.handleNickEvent(msg, timestamp, myNick)
case "NOTICE":
a.handleNoticeEvent(msg, timestamp)
case "TOPIC":
a.handleTopicEvent(msg, timestamp)
default:
a.handleDefaultEvent(msg, timestamp)
}
}
func (a *App) formatTS(msg *api.Message) string {
if msg.TS != "" {
return msg.ParseTS().UTC().Format(timeFormat)
}
return time.Now().Format(timeFormat)
}
func (a *App) handlePrivmsgEvent(
msg *api.Message, timestamp, myNick string,
) {
lines := msg.BodyLines()
text := strings.Join(lines, " ")
if msg.From == myNick {
return
}
target := msg.To
if !strings.HasPrefix(target, "#") {
target = msg.From
}
a.ui.AddLine(target, fmt.Sprintf(
"[gray]%s [green]<%s>[white] %s",
timestamp, msg.From, text,
))
}
func (a *App) handleJoinEvent(
msg *api.Message, timestamp string,
) {
if msg.To == "" {
return
}
a.ui.AddLine(msg.To, fmt.Sprintf(
"[gray]%s [yellow]*** %s has joined %s",
timestamp, msg.From, msg.To,
))
}
func (a *App) handlePartEvent(
msg *api.Message, timestamp string,
) {
if msg.To == "" {
return
}
lines := msg.BodyLines()
reason := strings.Join(lines, " ")
if reason != "" {
a.ui.AddLine(msg.To, fmt.Sprintf(
"[gray]%s [yellow]*** %s has left %s (%s)",
timestamp, msg.From, msg.To, reason,
))
} else {
a.ui.AddLine(msg.To, fmt.Sprintf(
"[gray]%s [yellow]*** %s has left %s",
timestamp, msg.From, msg.To,
))
}
}
func (a *App) handleQuitEvent(
msg *api.Message, timestamp string,
) {
lines := msg.BodyLines()
reason := strings.Join(lines, " ")
if reason != "" {
a.ui.AddStatus(fmt.Sprintf(
"[gray]%s [yellow]*** %s has quit (%s)",
timestamp, msg.From, reason,
))
} else {
a.ui.AddStatus(fmt.Sprintf(
"[gray]%s [yellow]*** %s has quit",
timestamp, msg.From,
))
}
}
func (a *App) handleNickEvent(
msg *api.Message, timestamp, myNick string,
) {
lines := msg.BodyLines()
newNick := ""
if len(lines) > 0 {
newNick = lines[0]
}
if msg.From == myNick && newNick != "" {
a.mu.Lock()
a.nick = newNick
target := a.target
a.mu.Unlock()
a.ui.SetStatus(newNick, target, "connected")
}
a.ui.AddStatus(fmt.Sprintf(
"[gray]%s [yellow]*** %s is now known as %s",
timestamp, msg.From, newNick,
))
}
func (a *App) handleNoticeEvent(
msg *api.Message, timestamp string,
) {
lines := msg.BodyLines()
text := strings.Join(lines, " ")
a.ui.AddStatus(fmt.Sprintf(
"[gray]%s [magenta]--%s-- %s",
timestamp, msg.From, text,
))
}
func (a *App) handleTopicEvent(
msg *api.Message, timestamp string,
) {
if msg.To == "" {
return
}
lines := msg.BodyLines()
text := strings.Join(lines, " ")
a.ui.AddLine(msg.To, fmt.Sprintf(
"[gray]%s [cyan]*** %s set topic: %s",
timestamp, msg.From, text,
))
}
func (a *App) handleDefaultEvent(
msg *api.Message, timestamp string,
) {
lines := msg.BodyLines()
text := strings.Join(lines, " ")
if text != "" {
a.ui.AddStatus(fmt.Sprintf(
"[gray]%s [white][%s] %s",
timestamp, msg.Command, text,
))
}
}

2
internal/cli/ui.go → cmd/neoirc-cli/ui.go
View File

@@ -1,4 +1,4 @@
package cli
package main
import (
"fmt"

79
internal/cli/api/hashcash.go
View File

@@ -1,79 +0,0 @@
package neoircapi
import (
"crypto/rand"
"crypto/sha256"
"encoding/hex"
"fmt"
"math/big"
"time"
)
const (
// bitsPerByte is the number of bits in a byte.
bitsPerByte = 8
// fullByteMask is 0xFF, a mask for all bits in a byte.
fullByteMask = 0xFF
// counterSpace is the range for random counter seeds.
counterSpace = 1 << 48
)
// MintHashcash computes a hashcash stamp with the given
// difficulty (leading zero bits) and resource string.
func MintHashcash(bits int, resource string) string {
date := time.Now().UTC().Format("060102")
prefix := fmt.Sprintf(
"1:%d:%s:%s::", bits, date, resource,
)
for {
counter := randomCounter()
stamp := prefix + counter
hash := sha256.Sum256([]byte(stamp))
if hasLeadingZeroBits(hash[:], bits) {
return stamp
}
}
}
// hasLeadingZeroBits checks if hash has at least numBits
// leading zero bits.
func hasLeadingZeroBits(
hash []byte,
numBits int,
) bool {
fullBytes := numBits / bitsPerByte
remainBits := numBits % bitsPerByte
for idx := range fullBytes {
if hash[idx] != 0 {
return false
}
}
if remainBits > 0 && fullBytes < len(hash) {
mask := byte(
fullByteMask << (bitsPerByte - remainBits),
)
if hash[fullBytes]&mask != 0 {
return false
}
}
return true
}
// randomCounter generates a random hex counter string.
func randomCounter() string {
counterVal, err := rand.Int(
rand.Reader, big.NewInt(counterSpace),
)
if err != nil {
// Fallback to timestamp-based counter on error.
return fmt.Sprintf("%x", time.Now().UnixNano())
}
return hex.EncodeToString(counterVal.Bytes())
}

912
internal/cli/app.go
View File

@@ -1,912 +0,0 @@
// Package cli implements the neoirc-cli terminal client.
package cli
import (
"fmt"
"os"
"strings"
"sync"
"time"
api "git.eeqj.de/sneak/neoirc/internal/cli/api"
"git.eeqj.de/sneak/neoirc/internal/irc"
)
const (
splitParts = 2
pollTimeout = 15
pollRetry = 2 * time.Second
timeFormat = "15:04"
)
// App holds the application state.
type App struct {
ui *UI
client *api.Client
mu sync.Mutex
nick string
target string
connected bool
lastQID int64
stopPoll chan struct{}
}
// Run creates and runs the CLI application.
func Run() {
app := &App{ //nolint:exhaustruct
ui: NewUI(),
nick: "guest",
}
app.ui.OnInput(app.handleInput)
app.ui.SetStatus(app.nick, "", "disconnected")
app.ui.AddStatus(
"Welcome to neoirc-cli — an IRC-style client",
)
app.ui.AddStatus(
"Type [yellow]/connect <server-url>" +
"[white] to begin, " +
"or [yellow]/help[white] for commands",
)
err := app.ui.Run()
if err != nil {
fmt.Fprintf(os.Stderr, "Error: %v\n", err)
os.Exit(1)
}
}
func (a *App) handleInput(text string) {
if strings.HasPrefix(text, "/") {
a.handleCommand(text)
return
}
a.mu.Lock()
target := a.target
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus(
"[red]Not connected. Use /connect <url>",
)
return
}
if target == "" {
a.ui.AddStatus(
"[red]No target. " +
"Use /join #channel or /query nick",
)
return
}
err := a.client.SendMessage(&api.Message{ //nolint:exhaustruct
Command: irc.CmdPrivmsg,
To: target,
Body: []string{text},
})
if err != nil {
a.ui.AddStatus(
"[red]Send error: " + err.Error(),
)
return
}
timestamp := time.Now().Format(timeFormat)
a.mu.Lock()
nick := a.nick
a.mu.Unlock()
a.ui.AddLine(target, fmt.Sprintf(
"[gray]%s [green]<%s>[white] %s",
timestamp, nick, text,
))
}
func (a *App) handleCommand(text string) {
parts := strings.SplitN(text, " ", splitParts)
cmd := strings.ToLower(parts[0])
args := ""
if len(parts) > 1 {
args = parts[1]
}
a.dispatchCommand(cmd, args)
}
func (a *App) dispatchCommand(cmd, args string) {
switch cmd {
case "/connect":
a.cmdConnect(args)
case "/nick":
a.cmdNick(args)
case "/join":
a.cmdJoin(args)
case "/part":
a.cmdPart(args)
case "/msg":
a.cmdMsg(args)
case "/query":
a.cmdQuery(args)
case "/topic":
a.cmdTopic(args)
case "/window", "/w":
a.cmdWindow(args)
case "/quit":
a.cmdQuit()
case "/help":
a.cmdHelp()
default:
a.dispatchInfoCommand(cmd, args)
}
}
func (a *App) dispatchInfoCommand(cmd, args string) {
switch cmd {
case "/names":
a.cmdNames()
case "/list":
a.cmdList()
case "/motd":
a.cmdMotd()
case "/who":
a.cmdWho(args)
case "/whois":
a.cmdWhois(args)
default:
a.ui.AddStatus(
"[red]Unknown command: " + cmd,
)
}
}
func (a *App) cmdConnect(serverURL string) {
if serverURL == "" {
a.ui.AddStatus(
"[red]Usage: /connect <server-url>",
)
return
}
serverURL = strings.TrimRight(serverURL, "/")
a.ui.AddStatus("Connecting to " + serverURL + "...")
a.mu.Lock()
nick := a.nick
a.mu.Unlock()
client := api.NewClient(serverURL)
resp, err := client.CreateSession(nick)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Connection failed: %v", err,
))
return
}
a.mu.Lock()
a.client = client
a.nick = resp.Nick
a.connected = true
a.lastQID = 0
a.mu.Unlock()
a.ui.AddStatus(fmt.Sprintf(
"[green]Connected! Nick: %s, Session: %d",
resp.Nick, resp.ID,
))
a.ui.SetStatus(resp.Nick, "", "connected")
a.stopPoll = make(chan struct{})
go a.pollLoop()
}
func (a *App) cmdNick(nick string) {
if nick == "" {
a.ui.AddStatus(
"[red]Usage: /nick <name>",
)
return
}
a.mu.Lock()
connected := a.connected
a.mu.Unlock()
if !connected {
a.mu.Lock()
a.nick = nick
a.mu.Unlock()
a.ui.AddStatus(
"Nick set to " + nick +
" (will be used on connect)",
)
return
}
err := a.client.SendMessage(&api.Message{ //nolint:exhaustruct
Command: irc.CmdNick,
Body: []string{nick},
})
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Nick change failed: %v", err,
))
return
}
a.mu.Lock()
a.nick = nick
target := a.target
a.mu.Unlock()
a.ui.SetStatus(nick, target, "connected")
a.ui.AddStatus("Nick changed to " + nick)
}
func (a *App) cmdJoin(channel string) {
if channel == "" {
a.ui.AddStatus(
"[red]Usage: /join #channel",
)
return
}
if !strings.HasPrefix(channel, "#") {
channel = "#" + channel
}
a.mu.Lock()
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
err := a.client.JoinChannel(channel)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Join failed: %v", err,
))
return
}
a.mu.Lock()
a.target = channel
nick := a.nick
a.mu.Unlock()
a.ui.SwitchToBuffer(channel)
a.ui.AddLine(channel,
"[yellow]*** Joined "+channel,
)
a.ui.SetStatus(nick, channel, "connected")
}
func (a *App) cmdPart(channel string) {
a.mu.Lock()
if channel == "" {
channel = a.target
}
connected := a.connected
a.mu.Unlock()
if channel == "" ||
!strings.HasPrefix(channel, "#") {
a.ui.AddStatus("[red]No channel to part")
return
}
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
err := a.client.PartChannel(channel)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Part failed: %v", err,
))
return
}
a.ui.AddLine(channel,
"[yellow]*** Left "+channel,
)
a.mu.Lock()
if a.target == channel {
a.target = ""
}
nick := a.nick
a.mu.Unlock()
a.ui.SwitchBuffer(0)
a.ui.SetStatus(nick, "", "connected")
}
func (a *App) cmdMsg(args string) {
parts := strings.SplitN(args, " ", splitParts)
if len(parts) < splitParts {
a.ui.AddStatus(
"[red]Usage: /msg <nick> <text>",
)
return
}
target, text := parts[0], parts[1]
a.mu.Lock()
connected := a.connected
nick := a.nick
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
err := a.client.SendMessage(&api.Message{ //nolint:exhaustruct
Command: irc.CmdPrivmsg,
To: target,
Body: []string{text},
})
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Send failed: %v", err,
))
return
}
timestamp := time.Now().Format(timeFormat)
a.ui.AddLine(target, fmt.Sprintf(
"[gray]%s [green]<%s>[white] %s",
timestamp, nick, text,
))
}
func (a *App) cmdQuery(nick string) {
if nick == "" {
a.ui.AddStatus(
"[red]Usage: /query <nick>",
)
return
}
a.mu.Lock()
a.target = nick
myNick := a.nick
a.mu.Unlock()
a.ui.SwitchToBuffer(nick)
a.ui.SetStatus(myNick, nick, "connected")
}
func (a *App) cmdTopic(args string) {
a.mu.Lock()
target := a.target
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
if !strings.HasPrefix(target, "#") {
a.ui.AddStatus("[red]Not in a channel")
return
}
if args == "" {
err := a.client.SendMessage(&api.Message{ //nolint:exhaustruct
Command: irc.CmdTopic,
To: target,
})
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Topic query failed: %v", err,
))
}
return
}
err := a.client.SendMessage(&api.Message{ //nolint:exhaustruct
Command: irc.CmdTopic,
To: target,
Body: []string{args},
})
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Topic set failed: %v", err,
))
}
}
func (a *App) cmdNames() {
a.mu.Lock()
target := a.target
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
if !strings.HasPrefix(target, "#") {
a.ui.AddStatus("[red]Not in a channel")
return
}
members, err := a.client.GetMembers(target)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]Names failed: %v", err,
))
return
}
a.ui.AddLine(target, fmt.Sprintf(
"[cyan]*** Members of %s: %s",
target, strings.Join(members, " "),
))
}
func (a *App) cmdList() {
a.mu.Lock()
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
channels, err := a.client.ListChannels()
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]List failed: %v", err,
))
return
}
a.ui.AddStatus("[cyan]*** Channel list:")
for _, ch := range channels {
a.ui.AddStatus(fmt.Sprintf(
" %s (%d members) %s",
ch.Name, ch.Members, ch.Topic,
))
}
a.ui.AddStatus("[cyan]*** End of channel list")
}
func (a *App) cmdMotd() {
a.mu.Lock()
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
err := a.client.SendMessage(
&api.Message{Command: irc.CmdMotd}, //nolint:exhaustruct
)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]MOTD failed: %v", err,
))
}
}
func (a *App) cmdWho(args string) {
a.mu.Lock()
connected := a.connected
target := a.target
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
channel := args
if channel == "" {
channel = target
}
if channel == "" ||
!strings.HasPrefix(channel, "#") {
a.ui.AddStatus(
"[red]Usage: /who #channel",
)
return
}
err := a.client.SendMessage(
&api.Message{ //nolint:exhaustruct
Command: irc.CmdWho, To: channel,
},
)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]WHO failed: %v", err,
))
}
}
func (a *App) cmdWhois(args string) {
a.mu.Lock()
connected := a.connected
a.mu.Unlock()
if !connected {
a.ui.AddStatus("[red]Not connected")
return
}
if args == "" {
a.ui.AddStatus(
"[red]Usage: /whois <nick>",
)
return
}
err := a.client.SendMessage(
&api.Message{ //nolint:exhaustruct
Command: irc.CmdWhois, To: args,
},
)
if err != nil {
a.ui.AddStatus(fmt.Sprintf(
"[red]WHOIS failed: %v", err,
))
}
}
func (a *App) cmdWindow(args string) {
if args == "" {
a.ui.AddStatus(
"[red]Usage: /window <number>",
)
return
}
var bufIndex int
_, _ = fmt.Sscanf(args, "%d", &bufIndex)
a.ui.SwitchBuffer(bufIndex)
a.mu.Lock()
nick := a.nick
a.mu.Unlock()
if bufIndex >= 0 && bufIndex < a.ui.BufferCount() {
buf := a.ui.buffers[bufIndex]
if buf.Name != "(status)" {
a.mu.Lock()
a.target = buf.Name
a.mu.Unlock()
a.ui.SetStatus(
nick, buf.Name, "connected",
)
} else {
a.ui.SetStatus(nick, "", "connected")
}
}
}
func (a *App) cmdQuit() {
a.mu.Lock()
if a.connected && a.client != nil {
_ = a.client.SendMessage(
&api.Message{Command: irc.CmdQuit}, //nolint:exhaustruct
)
}
if a.stopPoll != nil {
close(a.stopPoll)
}
a.mu.Unlock()
a.ui.Stop()
}
func (a *App) cmdHelp() {
help := []string{
"[cyan]*** neoirc-cli commands:",
" /connect <url> — Connect to server",
" /nick <name> — Change nickname",
" /join #channel — Join channel",
" /part [#chan] — Leave channel",
" /msg <nick> <text> — Send DM",
" /query <nick> — Open DM window",
" /topic [text] — View/set topic",
" /names — List channel members",
" /list — List channels",
" /who [#channel] — List users in channel",
" /whois <nick> — Show user info",
" /motd — Show message of the day",
" /window <n> — Switch buffer",
" /quit — Disconnect and exit",
" /help — This help",
" Plain text sends to current target.",
}
for _, line := range help {
a.ui.AddStatus(line)
}
}
// pollLoop long-polls for messages in the background.
func (a *App) pollLoop() {
for {
select {
case <-a.stopPoll:
return
default:
}
a.mu.Lock()
client := a.client
lastQID := a.lastQID
a.mu.Unlock()
if client == nil {
return
}
result, err := client.PollMessages(
lastQID, pollTimeout,
)
if err != nil {
time.Sleep(pollRetry)
continue
}
if result.LastID > 0 {
a.mu.Lock()
a.lastQID = result.LastID
a.mu.Unlock()
}
for i := range result.Messages {
a.handleServerMessage(&result.Messages[i])
}
}
}
func (a *App) handleServerMessage(msg *api.Message) {
timestamp := a.formatTS(msg)
a.mu.Lock()
myNick := a.nick
a.mu.Unlock()
switch msg.Command {
case irc.CmdPrivmsg:
a.handlePrivmsgEvent(msg, timestamp, myNick)
case irc.CmdJoin:
a.handleJoinEvent(msg, timestamp)
case irc.CmdPart:
a.handlePartEvent(msg, timestamp)
case irc.CmdQuit:
a.handleQuitEvent(msg, timestamp)
case irc.CmdNick:
a.handleNickEvent(msg, timestamp, myNick)
case irc.CmdNotice:
a.handleNoticeEvent(msg, timestamp)
case irc.CmdTopic:
a.handleTopicEvent(msg, timestamp)
default:
a.handleDefaultEvent(msg, timestamp)
}
}
func (a *App) formatTS(msg *api.Message) string {
if msg.TS != "" {
return msg.ParseTS().UTC().Format(timeFormat)
}
return time.Now().Format(timeFormat)
}
func (a *App) handlePrivmsgEvent(
msg *api.Message, timestamp, myNick string,
) {
lines := msg.BodyLines()
text := strings.Join(lines, " ")
if msg.From == myNick {
return
}
target := msg.To
if !strings.HasPrefix(target, "#") {
target = msg.From
}
a.ui.AddLine(target, fmt.Sprintf(
"[gray]%s [green]<%s>[white] %s",
timestamp, msg.From, text,
))
}
func (a *App) handleJoinEvent(
msg *api.Message, timestamp string,
) {
if msg.To == "" {
return
}
a.ui.AddLine(msg.To, fmt.Sprintf(
"[gray]%s [yellow]*** %s has joined %s",
timestamp, msg.From, msg.To,
))
}
func (a *App) handlePartEvent(
msg *api.Message, timestamp string,
) {
if msg.To == "" {
return
}
lines := msg.BodyLines()
reason := strings.Join(lines, " ")
if reason != "" {
a.ui.AddLine(msg.To, fmt.Sprintf(
"[gray]%s [yellow]*** %s has left %s (%s)",
timestamp, msg.From, msg.To, reason,
))
} else {
a.ui.AddLine(msg.To, fmt.Sprintf(
"[gray]%s [yellow]*** %s has left %s",
timestamp, msg.From, msg.To,
))
}
}
func (a *App) handleQuitEvent(
msg *api.Message, timestamp string,
) {
lines := msg.BodyLines()
reason := strings.Join(lines, " ")
if reason != "" {
a.ui.AddStatus(fmt.Sprintf(
"[gray]%s [yellow]*** %s has quit (%s)",
timestamp, msg.From, reason,
))
} else {
a.ui.AddStatus(fmt.Sprintf(
"[gray]%s [yellow]*** %s has quit",
timestamp, msg.From,
))
}
}
func (a *App) handleNickEvent(
msg *api.Message, timestamp, myNick string,
) {
lines := msg.BodyLines()
newNick := ""
if len(lines) > 0 {
newNick = lines[0]
}
if msg.From == myNick && newNick != "" {
a.mu.Lock()
a.nick = newNick
target := a.target
a.mu.Unlock()
a.ui.SetStatus(newNick, target, "connected")
}
a.ui.AddStatus(fmt.Sprintf(
"[gray]%s [yellow]*** %s is now known as %s",
timestamp, msg.From, newNick,
))
}
func (a *App) handleNoticeEvent(
msg *api.Message, timestamp string,
) {
lines := msg.BodyLines()
text := strings.Join(lines, " ")
a.ui.AddStatus(fmt.Sprintf(
"[gray]%s [magenta]--%s-- %s",
timestamp, msg.From, text,
))
}
func (a *App) handleTopicEvent(
msg *api.Message, timestamp string,
) {
if msg.To == "" {
return
}
lines := msg.BodyLines()
text := strings.Join(lines, " ")
a.ui.AddLine(msg.To, fmt.Sprintf(
"[gray]%s [cyan]*** %s set topic: %s",
timestamp, msg.From, text,
))
}
func (a *App) handleDefaultEvent(
msg *api.Message, timestamp string,
) {
lines := msg.BodyLines()
text := strings.Join(lines, " ")
if text != "" {
a.ui.AddStatus(fmt.Sprintf(
"[gray]%s [white][%s] %s",
timestamp, msg.Command, text,
))
}
}

24
internal/config/config.go
View File

@@ -13,14 +13,6 @@ import (
_ "github.com/joho/godotenv/autoload" // loads .env file
)
const defaultMOTD = ` _ __ ___ ___ (_)_ __ ___
| '_ \ / _ \/ _ \ | | '__/ __|
| | | | __/ (_) || | | | (__
|_| |_|\___|\___/ |_|_| \___|
Welcome to NeoIRC — IRC semantics over HTTP.
Type /help for available commands.`
// Params defines the dependencies for creating a Config.
type Params struct {
fx.In
@@ -38,14 +30,12 @@ type Config struct {
MetricsUsername string
Port int
SentryDSN string
MessageMaxAge string
MaxHistory int
MaxMessageSize int
QueueMaxAge string
MOTD string
ServerName string
FederationKey string
SessionIdleTimeout string
HashcashBits int
params *Params
log *slog.Logger
}
@@ -70,14 +60,12 @@ func New(
viper.SetDefault("SENTRY_DSN", "")
viper.SetDefault("METRICS_USERNAME", "")
viper.SetDefault("METRICS_PASSWORD", "")
viper.SetDefault("MESSAGE_MAX_AGE", "720h")
viper.SetDefault("MAX_HISTORY", "10000")
viper.SetDefault("MAX_MESSAGE_SIZE", "4096")
viper.SetDefault("QUEUE_MAX_AGE", "720h")
viper.SetDefault("MOTD", defaultMOTD)
viper.SetDefault("MOTD", "")
viper.SetDefault("SERVER_NAME", "")
viper.SetDefault("FEDERATION_KEY", "")
viper.SetDefault("SESSION_IDLE_TIMEOUT", "720h")
viper.SetDefault("NEOIRC_HASHCASH_BITS", "20")
viper.SetDefault("SESSION_IDLE_TIMEOUT", "24h")
err := viper.ReadInConfig()
if err != nil {
@@ -96,14 +84,12 @@ func New(
MaintenanceMode: viper.GetBool("MAINTENANCE_MODE"),
MetricsUsername: viper.GetString("METRICS_USERNAME"),
MetricsPassword: viper.GetString("METRICS_PASSWORD"),
MessageMaxAge: viper.GetString("MESSAGE_MAX_AGE"),
MaxHistory: viper.GetInt("MAX_HISTORY"),
MaxMessageSize: viper.GetInt("MAX_MESSAGE_SIZE"),
QueueMaxAge: viper.GetString("QUEUE_MAX_AGE"),
MOTD: viper.GetString("MOTD"),
ServerName: viper.GetString("SERVER_NAME"),
FederationKey: viper.GetString("FEDERATION_KEY"),
SessionIdleTimeout: viper.GetString("SESSION_IDLE_TIMEOUT"),
HashcashBits: viper.GetInt("NEOIRC_HASHCASH_BITS"),
log: log,
params: &params,
}

8
internal/db/auth.go
View File

@@ -64,14 +64,12 @@ func (database *Database) RegisterUser(
sessionID, _ := res.LastInsertId()
tokenHash := hashToken(token)
clientRes, err := transaction.ExecContext(ctx,
`INSERT INTO clients
(uuid, session_id, token,
created_at, last_seen)
VALUES (?, ?, ?, ?, ?)`,
clientUUID, sessionID, tokenHash, now, now)
clientUUID, sessionID, token, now, now)
if err != nil {
_ = transaction.Rollback()
@@ -139,14 +137,12 @@ func (database *Database) LoginUser(
now := time.Now()
tokenHash := hashToken(token)
res, err := database.conn.ExecContext(ctx,
`INSERT INTO clients
(uuid, session_id, token,
created_at, last_seen)
VALUES (?, ?, ?, ?, ?)`,
clientUUID, sessionID, tokenHash, now, now)
clientUUID, sessionID, token, now, now)
if err != nil {
return 0, 0, "", fmt.Errorf(
"create login client: %w", err,

20
internal/db/errors.go
View File

@@ -1,20 +0,0 @@
// Package db provides database access and migration management.
package db
import (
"errors"
"modernc.org/sqlite"
sqlite3 "modernc.org/sqlite/lib"
)
// IsUniqueConstraintError reports whether err is a SQLite
// unique-constraint violation.
func IsUniqueConstraintError(err error) bool {
var sqliteErr *sqlite.Error
if !errors.As(err, &sqliteErr) {
return false
}
return sqliteErr.Code() == sqlite3.SQLITE_CONSTRAINT_UNIQUE
}

228
internal/db/queries.go
View File

@@ -3,15 +3,12 @@ package db
import (
"context"
"crypto/rand"
"crypto/sha256"
"database/sql"
"encoding/hex"
"encoding/json"
"fmt"
"strconv"
"time"
"git.eeqj.de/sneak/neoirc/internal/irc"
"github.com/google/uuid"
)
@@ -32,37 +29,18 @@ func generateToken() (string, error) {
return hex.EncodeToString(buf), nil
}
// hashToken returns the lowercase hex-encoded SHA-256
// digest of a plaintext token string.
func hashToken(token string) string {
sum := sha256.Sum256([]byte(token))
return hex.EncodeToString(sum[:])
}
// IRCMessage is the IRC envelope for all messages.
type IRCMessage struct {
ID string `json:"id"`
Command string `json:"command"`
Code int `json:"code,omitempty"`
From string `json:"from,omitempty"`
To string `json:"to,omitempty"`
Params json.RawMessage `json:"params,omitempty"`
Body json.RawMessage `json:"body,omitempty"`
TS string `json:"ts"`
Meta json.RawMessage `json:"meta,omitempty"`
DBID int64 `json:"-"`
}
// isNumericCode returns true if s is exactly a 3-digit
// IRC numeric reply code.
func isNumericCode(s string) bool {
return len(s) == 3 &&
s[0] >= '0' && s[0] <= '9' &&
s[1] >= '0' && s[1] <= '9' &&
s[2] >= '0' && s[2] <= '9'
}
// ChannelInfo is a lightweight channel representation.
type ChannelInfo struct {
ID int64 `json:"id"`
@@ -114,14 +92,12 @@ func (database *Database) CreateSession(
sessionID, _ := res.LastInsertId()
tokenHash := hashToken(token)
clientRes, err := transaction.ExecContext(ctx,
`INSERT INTO clients
(uuid, session_id, token,
created_at, last_seen)
VALUES (?, ?, ?, ?, ?)`,
clientUUID, sessionID, tokenHash, now, now)
clientUUID, sessionID, token, now, now)
if err != nil {
_ = transaction.Rollback()
@@ -154,8 +130,6 @@ func (database *Database) GetSessionByToken(
nick string
)
tokenHash := hashToken(token)
err := database.conn.QueryRowContext(
ctx,
`SELECT s.id, c.id, s.nick
@@ -163,7 +137,7 @@ func (database *Database) GetSessionByToken(
INNER JOIN sessions s
ON s.id = c.session_id
WHERE c.token = ?`,
tokenHash,
token,
).Scan(&sessionID, &clientID, &nick)
if err != nil {
return 0, 0, "", fmt.Errorf(
@@ -517,17 +491,12 @@ func (database *Database) GetSessionChannelIDs(
func (database *Database) InsertMessage(
ctx context.Context,
command, from, target string,
params json.RawMessage,
body json.RawMessage,
meta json.RawMessage,
) (int64, string, error) {
msgUUID := uuid.New().String()
now := time.Now().UTC()
if params == nil {
params = json.RawMessage("[]")
}
if body == nil {
body = json.RawMessage("[]")
}
@@ -539,10 +508,10 @@ func (database *Database) InsertMessage(
res, err := database.conn.ExecContext(ctx,
`INSERT INTO messages
(uuid, command, msg_from, msg_to,
params, body, meta, created_at)
VALUES (?, ?, ?, ?, ?, ?, ?, ?)`,
body, meta, created_at)
VALUES (?, ?, ?, ?, ?, ?, ?)`,
msgUUID, command, from, target,
string(params), string(body), string(meta), now)
string(body), string(meta), now)
if err != nil {
return 0, "", fmt.Errorf(
"insert message: %w", err,
@@ -609,7 +578,7 @@ func (database *Database) PollMessages(
rows, err := database.conn.QueryContext(ctx,
`SELECT cq.id, m.uuid, m.command,
m.msg_from, m.msg_to,
m.params, m.body, m.meta, m.created_at
m.body, m.meta, m.created_at
FROM client_queues cq
INNER JOIN messages m
ON m.id = cq.message_id
@@ -673,7 +642,7 @@ func (database *Database) queryHistory(
if beforeID > 0 {
rows, err := database.conn.QueryContext(ctx,
`SELECT id, uuid, command, msg_from,
msg_to, params, body, meta, created_at
msg_to, body, meta, created_at
FROM messages
WHERE msg_to = ? AND id < ?
AND command = 'PRIVMSG'
@@ -690,7 +659,7 @@ func (database *Database) queryHistory(
rows, err := database.conn.QueryContext(ctx,
`SELECT id, uuid, command, msg_from,
msg_to, params, body, meta, created_at
msg_to, body, meta, created_at
FROM messages
WHERE msg_to = ?
AND command = 'PRIVMSG'
@@ -717,14 +686,14 @@ func scanMessages(
var (
msg IRCMessage
qID int64
params, body, meta string
body, meta string
createdAt time.Time
)
err := rows.Scan(
&qID, &msg.ID, &msg.Command,
&msg.From, &msg.To,
&params, &body, &meta, &createdAt,
&body, &meta, &createdAt,
)
if err != nil {
return nil, fallbackQID, fmt.Errorf(
@@ -732,25 +701,12 @@ func scanMessages(
)
}
if params != "" && params != "[]" {
msg.Params = json.RawMessage(params)
}
msg.Body = json.RawMessage(body)
msg.Meta = json.RawMessage(meta)
msg.TS = createdAt.Format(time.RFC3339Nano)
msg.DBID = qID
lastQID = qID
if isNumericCode(msg.Command) {
code, _ := strconv.Atoi(msg.Command)
msg.Code = code
if name := irc.Name(code); name != "" {
msg.Command = name
}
}
msgs = append(msgs, msg)
}
@@ -987,167 +943,3 @@ func (database *Database) GetSessionChannels(
return scanChannels(rows)
}
// GetChannelCount returns the total number of channels.
func (database *Database) GetChannelCount(
ctx context.Context,
) (int64, error) {
var count int64
err := database.conn.QueryRowContext(
ctx,
"SELECT COUNT(*) FROM channels",
).Scan(&count)
if err != nil {
return 0, fmt.Errorf(
"get channel count: %w", err,
)
}
return count, nil
}
// ChannelInfoFull contains extended channel information.
type ChannelInfoFull struct {
ID int64 `json:"id"`
Name string `json:"name"`
Topic string `json:"topic"`
MemberCount int64 `json:"memberCount"`
}
// ListAllChannelsWithCounts returns every channel
// with its member count.
func (database *Database) ListAllChannelsWithCounts(
ctx context.Context,
) ([]ChannelInfoFull, error) {
rows, err := database.conn.QueryContext(ctx,
`SELECT c.id, c.name, c.topic,
COUNT(cm.session_id) AS member_count
FROM channels c
LEFT JOIN channel_members cm
ON cm.channel_id = c.id
GROUP BY c.id
ORDER BY c.name`)
if err != nil {
return nil, fmt.Errorf(
"list channels with counts: %w", err,
)
}
defer func() { _ = rows.Close() }()
var out []ChannelInfoFull
for rows.Next() {
var chanInfo ChannelInfoFull
err = rows.Scan(
&chanInfo.ID, &chanInfo.Name,
&chanInfo.Topic, &chanInfo.MemberCount,
)
if err != nil {
return nil, fmt.Errorf(
"scan channel full: %w", err,
)
}
out = append(out, chanInfo)
}
err = rows.Err()
if err != nil {
return nil, fmt.Errorf("rows error: %w", err)
}
if out == nil {
out = []ChannelInfoFull{}
}
return out, nil
}
// GetChannelCreatedAt returns the creation time of a
// channel.
func (database *Database) GetChannelCreatedAt(
ctx context.Context,
channelID int64,
) (time.Time, error) {
var createdAt time.Time
err := database.conn.QueryRowContext(
ctx,
"SELECT created_at FROM channels WHERE id = ?",
channelID,
).Scan(&createdAt)
if err != nil {
return time.Time{}, fmt.Errorf(
"get channel created_at: %w", err,
)
}
return createdAt, nil
}
// GetSessionCreatedAt returns the creation time of a
// session.
func (database *Database) GetSessionCreatedAt(
ctx context.Context,
sessionID int64,
) (time.Time, error) {
var createdAt time.Time
err := database.conn.QueryRowContext(
ctx,
"SELECT created_at FROM sessions WHERE id = ?",
sessionID,
).Scan(&createdAt)
if err != nil {
return time.Time{}, fmt.Errorf(
"get session created_at: %w", err,
)
}
return createdAt, nil
}
// PruneOldQueueEntries deletes client output queue entries
// older than cutoff and returns the number of rows removed.
func (database *Database) PruneOldQueueEntries(
ctx context.Context,
cutoff time.Time,
) (int64, error) {
res, err := database.conn.ExecContext(ctx,
"DELETE FROM client_queues WHERE created_at < ?",
cutoff,
)
if err != nil {
return 0, fmt.Errorf(
"prune old client output queue entries: %w", err,
)
}
deleted, _ := res.RowsAffected()
return deleted, nil
}
// PruneOldMessages deletes messages older than cutoff and
// returns the number of rows removed.
func (database *Database) PruneOldMessages(
ctx context.Context,
cutoff time.Time,
) (int64, error) {
res, err := database.conn.ExecContext(ctx,
"DELETE FROM messages WHERE created_at < ?",
cutoff,
)
if err != nil {
return 0, fmt.Errorf(
"prune old messages: %w", err,
)
}
deleted, _ := res.RowsAffected()
return deleted, nil
}

8
internal/db/queries_test.go
View File

@@ -383,7 +383,7 @@ func TestInsertMessage(t *testing.T) {
body := json.RawMessage(`["hello"]`)
dbID, msgUUID, err := database.InsertMessage(
ctx, "PRIVMSG", "poller", "#test", nil, body, nil,
ctx, "PRIVMSG", "poller", "#test", body, nil,
)
if err != nil {
t.Fatal(err)
@@ -417,7 +417,7 @@ func TestPollMessages(t *testing.T) {
body := json.RawMessage(`["hello"]`)
dbID, _, err := database.InsertMessage(
ctx, "PRIVMSG", "poller", "#test", nil, body, nil,
ctx, "PRIVMSG", "poller", "#test", body, nil,
)
if err != nil {
t.Fatal(err)
@@ -475,7 +475,7 @@ func TestGetHistory(t *testing.T) {
for range msgCount {
_, _, err := database.InsertMessage(
ctx, "PRIVMSG", "user", "#hist",
nil, json.RawMessage(`["msg"]`), nil,
json.RawMessage(`["msg"]`), nil,
)
if err != nil {
t.Fatal(err)
@@ -627,7 +627,7 @@ func TestEnqueueToClient(t *testing.T) {
body := json.RawMessage(`["test"]`)
dbID, _, err := database.InsertMessage(
ctx, "PRIVMSG", "sender", "#ch", nil, body, nil,
ctx, "PRIVMSG", "sender", "#ch", body, nil,
)
if err != nil {
t.Fatal(err)

1
internal/db/schema/001_initial.sql
View File

@@ -50,7 +50,6 @@ CREATE TABLE IF NOT EXISTS messages (
command TEXT NOT NULL DEFAULT 'PRIVMSG',
msg_from TEXT NOT NULL DEFAULT '',
msg_to TEXT NOT NULL DEFAULT '',
params TEXT NOT NULL DEFAULT '[]',
body TEXT NOT NULL DEFAULT '[]',
meta TEXT NOT NULL DEFAULT '{}',
created_at DATETIME DEFAULT CURRENT_TIMESTAMP

8
internal/globals/globals.go
View File

@@ -2,8 +2,6 @@
package globals
import (
"time"
"go.uber.org/fx"
)
@@ -19,16 +17,14 @@ var (
type Globals struct {
Appname string
Version string
StartTime time.Time
}
// New creates a new Globals instance from the global state.
func New(_ fx.Lifecycle) (*Globals, error) {
result := &Globals{
n := &Globals{
Appname: Appname,
Version: Version,
StartTime: time.Now(),
}
return result, nil
return n, nil
}

1214
internal/handlers/api.go
View File

File diff suppressed because it is too large Load Diff

242
internal/handlers/api_test.go
View File

@@ -12,7 +12,6 @@ import (
"net/http"
"net/http/httptest"
"path/filepath"
"strconv"
"strings"
"sync"
"testing"
@@ -85,7 +84,6 @@ func newTestServer(
cfg.DBURL = dbURL
cfg.Port = 0
cfg.HashcashBits = 0
return cfg, nil
},
@@ -119,7 +117,6 @@ func newTestGlobals() *globals.Globals {
return &globals.Globals{
Appname: "neoirc-test",
Version: "test",
StartTime: time.Now(),
}
}
@@ -465,22 +462,6 @@ func findMessage(
return false
}
func findNumeric(
msgs []map[string]any,
numeric string,
) bool {
want, _ := strconv.Atoi(numeric)
for _, msg := range msgs {
code, ok := msg["code"].(float64)
if ok && int(code) == want {
return true
}
}
return false
}
// --- Tests ---
func TestCreateSessionValid(t *testing.T) {
@@ -492,47 +473,6 @@ func TestCreateSessionValid(t *testing.T) {
}
}
func TestWelcomeNumeric(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("welcomer")
msgs, _ := tserver.pollMessages(token, 0)
if !findNumeric(msgs, "001") {
t.Fatalf(
"expected RPL_WELCOME (001), got %v",
msgs,
)
}
}
func TestJoinNumerics(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("jnumtest")
_, lastID := tserver.pollMessages(token, 0)
tserver.sendCommand(token, map[string]any{
commandKey: joinCmd, toKey: "#numtest",
})
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "353") {
t.Fatalf(
"expected RPL_NAMREPLY (353), got %v",
msgs,
)
}
if !findNumeric(msgs, "366") {
t.Fatalf(
"expected RPL_ENDOFNAMES (366), got %v",
msgs,
)
}
}
func TestCreateSessionDuplicate(t *testing.T) {
tserver := newTestServer(t)
tserver.createSession("alice")
@@ -728,23 +668,11 @@ func TestJoinMissingTo(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("joiner3")
// Drain initial MOTD/welcome numerics.
_, lastID := tserver.pollMessages(token, 0)
status, _ := tserver.sendCommand(
token, map[string]any{commandKey: joinCmd},
)
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "461") {
t.Fatalf(
"expected ERR_NEEDMOREPARAMS (461), got %v",
msgs,
)
if status != http.StatusBadRequest {
t.Fatalf("expected 400, got %d", status)
}
}
@@ -771,9 +699,9 @@ func TestChannelMessage(t *testing.T) {
bodyKey: []string{"hello world"},
},
)
if status != http.StatusOK {
if status != http.StatusCreated {
t.Fatalf(
"expected 200, got %d: %v", status, result,
"expected 201, got %d: %v", status, result,
)
}
@@ -800,22 +728,11 @@ func TestMessageMissingBody(t *testing.T) {
commandKey: joinCmd, toKey: "#test",
})
_, lastID := tserver.pollMessages(token, 0)
status, _ := tserver.sendCommand(token, map[string]any{
commandKey: privmsgCmd, toKey: "#test",
})
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "461") {
t.Fatalf(
"expected ERR_NEEDMOREPARAMS (461), got %v",
msgs,
)
if status != http.StatusBadRequest {
t.Fatalf("expected 400, got %d", status)
}
}
@@ -823,23 +740,12 @@ func TestMessageMissingTo(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("noto")
_, lastID := tserver.pollMessages(token, 0)
status, _ := tserver.sendCommand(token, map[string]any{
commandKey: privmsgCmd,
bodyKey: []string{"hello"},
})
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "461") {
t.Fatalf(
"expected ERR_NEEDMOREPARAMS (461), got %v",
msgs,
)
if status != http.StatusBadRequest {
t.Fatalf("expected 400, got %d", status)
}
}
@@ -853,8 +759,6 @@ func TestNonMemberCannotSend(t *testing.T) {
commandKey: joinCmd, toKey: "#private",
})
_, lastID := tserver.pollMessages(aliceToken, 0)
// Alice tries to send without joining.
status, _ := tserver.sendCommand(
aliceToken,
@@ -864,17 +768,8 @@ func TestNonMemberCannotSend(t *testing.T) {
bodyKey: []string{"sneaky"},
},
)
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(aliceToken, lastID)
if !findNumeric(msgs, "442") {
t.Fatalf(
"expected ERR_NOTONCHANNEL (442), got %v",
msgs,
)
if status != http.StatusForbidden {
t.Fatalf("expected 403, got %d", status)
}
}
@@ -891,9 +786,9 @@ func TestDirectMessage(t *testing.T) {
bodyKey: []string{"hey bob"},
},
)
if status != http.StatusOK {
if status != http.StatusCreated {
t.Fatalf(
"expected 200, got %d: %v", status, result,
"expected 201, got %d: %v", status, result,
)
}
@@ -923,24 +818,13 @@ func TestDMToNonexistentUser(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("dmsender")
_, lastID := tserver.pollMessages(token, 0)
status, _ := tserver.sendCommand(token, map[string]any{
commandKey: privmsgCmd,
toKey: "nobody",
bodyKey: []string{"hello?"},
})
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "401") {
t.Fatalf(
"expected ERR_NOSUCHNICK (401), got %v",
msgs,
)
if status != http.StatusNotFound {
t.Fatalf("expected 404, got %d", status)
}
}
@@ -987,23 +871,12 @@ func TestNickCollision(t *testing.T) {
tserver.createSession("taken_nick")
_, lastID := tserver.pollMessages(token, 0)
status, _ := tserver.sendCommand(token, map[string]any{
commandKey: "NICK",
bodyKey: []string{"taken_nick"},
})
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "433") {
t.Fatalf(
"expected ERR_NICKNAMEINUSE (433), got %v",
msgs,
)
if status != http.StatusConflict {
t.Fatalf("expected 409, got %d", status)
}
}
@@ -1011,23 +884,12 @@ func TestNickInvalid(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("nickval")
_, lastID := tserver.pollMessages(token, 0)
status, _ := tserver.sendCommand(token, map[string]any{
commandKey: "NICK",
bodyKey: []string{"bad nick!"},
})
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "432") {
t.Fatalf(
"expected ERR_ERRONEUSNICKNAME (432), got %v",
msgs,
)
if status != http.StatusBadRequest {
t.Fatalf("expected 400, got %d", status)
}
}
@@ -1035,22 +897,11 @@ func TestNickEmptyBody(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("nicknobody")
_, lastID := tserver.pollMessages(token, 0)
status, _ := tserver.sendCommand(
token, map[string]any{commandKey: "NICK"},
)
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "461") {
t.Fatalf(
"expected ERR_NEEDMOREPARAMS (461), got %v",
msgs,
)
if status != http.StatusBadRequest {
t.Fatalf("expected 400, got %d", status)
}
}
@@ -1087,23 +938,12 @@ func TestTopicMissingTo(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("topicnoto")
_, lastID := tserver.pollMessages(token, 0)
status, _ := tserver.sendCommand(token, map[string]any{
commandKey: "TOPIC",
bodyKey: []string{"topic"},
})
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "461") {
t.Fatalf(
"expected ERR_NEEDMOREPARAMS (461), got %v",
msgs,
)
if status != http.StatusBadRequest {
t.Fatalf("expected 400, got %d", status)
}
}
@@ -1115,22 +955,11 @@ func TestTopicMissingBody(t *testing.T) {
commandKey: joinCmd, toKey: "#topictest",
})
_, lastID := tserver.pollMessages(token, 0)
status, _ := tserver.sendCommand(token, map[string]any{
commandKey: "TOPIC", toKey: "#topictest",
})
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "461") {
t.Fatalf(
"expected ERR_NEEDMOREPARAMS (461), got %v",
msgs,
)
if status != http.StatusBadRequest {
t.Fatalf("expected 400, got %d", status)
}
}
@@ -1198,22 +1027,11 @@ func TestUnknownCommand(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("cmdtest")
_, lastID := tserver.pollMessages(token, 0)
status, _ := tserver.sendCommand(
token, map[string]any{commandKey: "BOGUS"},
)
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "421") {
t.Fatalf(
"expected ERR_UNKNOWNCOMMAND (421), got %v",
msgs,
)
if status != http.StatusBadRequest {
t.Fatalf("expected 400, got %d", status)
}
}
@@ -1460,18 +1278,12 @@ func TestLongPollTimeout(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("lp_timeout")
// Drain initial welcome/MOTD numerics.
_, lastID := tserver.pollMessages(token, 0)
start := time.Now()
resp, err := doRequestAuth(
t,
http.MethodGet,
tserver.url(fmt.Sprintf(
"%s?timeout=1&after=%d",
apiMessages, lastID,
)),
tserver.url(apiMessages+"?timeout=1"),
token,
nil,
)

18
internal/handlers/auth.go
View File

@@ -4,8 +4,6 @@ import (
"encoding/json"
"net/http"
"strings"
"git.eeqj.de/sneak/neoirc/internal/db"
)
const minPasswordLength = 8
@@ -82,7 +80,7 @@ func (hdlr *Handlers) handleRegister(
return
}
hdlr.deliverMOTD(request, clientID, sessionID, payload.Nick)
hdlr.deliverMOTD(request, clientID, sessionID)
hdlr.respondJSON(writer, request, map[string]any{
"id": sessionID,
@@ -96,7 +94,7 @@ func (hdlr *Handlers) handleRegisterError(
request *http.Request,
err error,
) {
if db.IsUniqueConstraintError(err) {
if strings.Contains(err.Error(), "UNIQUE") {
hdlr.respondError(
writer, request,
"nick already taken",
@@ -164,7 +162,7 @@ func (hdlr *Handlers) handleLogin(
return
}
sessionID, clientID, token, err :=
sessionID, _, token, err :=
hdlr.params.Database.LoginUser(
request.Context(),
payload.Nick,
@@ -180,16 +178,6 @@ func (hdlr *Handlers) handleLogin(
return
}
hdlr.deliverMOTD(
request, clientID, sessionID, payload.Nick,
)
// Initialize channel state so the new client knows
// which channels the session already belongs to.
hdlr.initChannelState(
request, clientID, sessionID, payload.Nick,
)
hdlr.respondJSON(writer, request, map[string]any{
"id": sessionID,
"nick": payload.Nick,

83
internal/handlers/handlers.go
View File

@@ -13,7 +13,6 @@ import (
"git.eeqj.de/sneak/neoirc/internal/config"
"git.eeqj.de/sneak/neoirc/internal/db"
"git.eeqj.de/sneak/neoirc/internal/globals"
"git.eeqj.de/sneak/neoirc/internal/hashcash"
"git.eeqj.de/sneak/neoirc/internal/healthcheck"
"git.eeqj.de/sneak/neoirc/internal/logger"
"go.uber.org/fx"
@@ -32,7 +31,7 @@ type Params struct {
Healthcheck *healthcheck.Healthcheck
}
const defaultIdleTimeout = 30 * 24 * time.Hour
const defaultIdleTimeout = 24 * time.Hour
// Handlers manages HTTP request handling.
type Handlers struct {
@@ -40,7 +39,6 @@ type Handlers struct {
log *slog.Logger
hc *healthcheck.Healthcheck
broker *broker.Broker
hashcashVal *hashcash.Validator
cancelCleanup context.CancelFunc
}
@@ -49,17 +47,11 @@ func New(
lifecycle fx.Lifecycle,
params Params,
) (*Handlers, error) {
resource := params.Config.ServerName
if resource == "" {
resource = "neoirc"
}
hdlr := &Handlers{ //nolint:exhaustruct // cancelCleanup set in startCleanup
params: &params,
log: params.Logger.Get(),
hc: params.Healthcheck,
broker: broker.New(),
hashcashVal: hashcash.NewValidator(resource),
}
lifecycle.Append(fx.Hook{
@@ -208,77 +200,4 @@ func (hdlr *Handlers) runCleanup(
"deleted", deleted,
)
}
hdlr.pruneQueuesAndMessages(ctx)
}
// parseDurationConfig parses a Go duration string,
// returning zero on empty input and logging on error.
func (hdlr *Handlers) parseDurationConfig(
name, raw string,
) time.Duration {
if raw == "" {
return 0
}
dur, err := time.ParseDuration(raw)
if err != nil {
hdlr.log.Error(
"invalid duration config, skipping",
"name", name, "value", raw, "error", err,
)
return 0
}
return dur
}
// pruneQueuesAndMessages removes old client output queue
// entries per QUEUE_MAX_AGE and old messages per
// MESSAGE_MAX_AGE.
func (hdlr *Handlers) pruneQueuesAndMessages(
ctx context.Context,
) {
queueMaxAge := hdlr.parseDurationConfig(
"QUEUE_MAX_AGE",
hdlr.params.Config.QueueMaxAge,
)
if queueMaxAge > 0 {
queueCutoff := time.Now().Add(-queueMaxAge)
pruned, err := hdlr.params.Database.
PruneOldQueueEntries(ctx, queueCutoff)
if err != nil {
hdlr.log.Error(
"client output queue pruning failed", "error", err,
)
} else if pruned > 0 {
hdlr.log.Info(
"pruned old client output queue entries",
"deleted", pruned,
)
}
}
messageMaxAge := hdlr.parseDurationConfig(
"MESSAGE_MAX_AGE",
hdlr.params.Config.MessageMaxAge,
)
if messageMaxAge > 0 {
msgCutoff := time.Now().Add(-messageMaxAge)
pruned, err := hdlr.params.Database.
PruneOldMessages(ctx, msgCutoff)
if err != nil {
hdlr.log.Error(
"message pruning failed", "error", err,
)
} else if pruned > 0 {
hdlr.log.Info(
"pruned old messages",
"deleted", pruned,
)
}
}
}

277
internal/hashcash/hashcash.go
View File

@@ -1,277 +0,0 @@
// Package hashcash implements SHA-256-based hashcash
// proof-of-work validation for abuse prevention.
//
// Stamp format: 1:bits:YYMMDD:resource::counter.
//
// The SHA-256 hash of the entire stamp string must have
// at least `bits` leading zero bits.
package hashcash
import (
"crypto/sha256"
"errors"
"fmt"
"strconv"
"strings"
"sync"
"time"
)
const (
// stampVersion is the only supported hashcash version.
stampVersion = "1"
// stampFields is the number of fields in a stamp.
stampFields = 6
// maxStampAge is how old a stamp can be before
// rejection.
maxStampAge = 48 * time.Hour
// maxFutureSkew allows stamps slightly in the future.
maxFutureSkew = 1 * time.Hour
// pruneInterval controls how often expired stamps are
// removed from the spent set.
pruneInterval = 10 * time.Minute
// dateFormatShort is the YYMMDD date layout.
dateFormatShort = "060102"
// dateFormatLong is the YYMMDDHHMMSS date layout.
dateFormatLong = "060102150405"
// dateShortLen is the length of YYMMDD.
dateShortLen = 6
// dateLongLen is the length of YYMMDDHHMMSS.
dateLongLen = 12
// bitsPerByte is the number of bits in a byte.
bitsPerByte = 8
// fullByteMask is 0xFF, a mask for all bits in a byte.
fullByteMask = 0xFF
)
var (
errInvalidFields = errors.New("invalid stamp field count")
errBadVersion = errors.New("unsupported stamp version")
errInsufficientBits = errors.New("insufficient difficulty")
errWrongResource = errors.New("wrong resource")
errStampExpired = errors.New("stamp expired")
errStampFuture = errors.New("stamp date in future")
errProofFailed = errors.New("proof-of-work failed")
errStampReused = errors.New("stamp already used")
errBadDateFormat = errors.New("unrecognized date format")
)
// Validator checks hashcash stamps for validity and
// prevents replay attacks via an in-memory spent set.
type Validator struct {
resource string
mu sync.Mutex
spent map[string]time.Time
}
// NewValidator creates a Validator for the given resource.
func NewValidator(resource string) *Validator {
validator := &Validator{
resource: resource,
mu: sync.Mutex{},
spent: make(map[string]time.Time),
}
go validator.pruneLoop()
return validator
}
// Validate checks a hashcash stamp. It returns nil if the
// stamp is valid and has not been seen before.
func (v *Validator) Validate(
stamp string,
requiredBits int,
) error {
if requiredBits <= 0 {
return nil
}
parts := strings.Split(stamp, ":")
if len(parts) != stampFields {
return fmt.Errorf(
"%w: expected %d, got %d",
errInvalidFields, stampFields, len(parts),
)
}
version := parts[0]
bitsStr := parts[1]
dateStr := parts[2]
resource := parts[3]
if err := v.validateHeader(
version, bitsStr, resource, requiredBits,
); err != nil {
return err
}
stampTime, err := parseStampDate(dateStr)
if err != nil {
return err
}
if err := validateTime(stampTime); err != nil {
return err
}
if err := validateProof(
stamp, requiredBits,
); err != nil {
return err
}
return v.checkAndRecordStamp(stamp, stampTime)
}
func (v *Validator) validateHeader(
version, bitsStr, resource string,
requiredBits int,
) error {
if version != stampVersion {
return fmt.Errorf(
"%w: %s", errBadVersion, version,
)
}
claimedBits, err := strconv.Atoi(bitsStr)
if err != nil || claimedBits < requiredBits {
return fmt.Errorf(
"%w: need %d bits",
errInsufficientBits, requiredBits,
)
}
if resource != v.resource {
return fmt.Errorf(
"%w: got %q, want %q",
errWrongResource, resource, v.resource,
)
}
return nil
}
func validateTime(stampTime time.Time) error {
now := time.Now()
if now.Sub(stampTime) > maxStampAge {
return errStampExpired
}
if stampTime.Sub(now) > maxFutureSkew {
return errStampFuture
}
return nil
}
func validateProof(stamp string, requiredBits int) error {
hash := sha256.Sum256([]byte(stamp))
if !hasLeadingZeroBits(hash[:], requiredBits) {
return fmt.Errorf(
"%w: need %d leading zero bits",
errProofFailed, requiredBits,
)
}
return nil
}
func (v *Validator) checkAndRecordStamp(
stamp string,
stampTime time.Time,
) error {
v.mu.Lock()
defer v.mu.Unlock()
if _, ok := v.spent[stamp]; ok {
return errStampReused
}
v.spent[stamp] = stampTime
return nil
}
// hasLeadingZeroBits checks if the hash has at least n
// leading zero bits.
func hasLeadingZeroBits(hash []byte, numBits int) bool {
fullBytes := numBits / bitsPerByte
remainBits := numBits % bitsPerByte
for idx := range fullBytes {
if hash[idx] != 0 {
return false
}
}
if remainBits > 0 && fullBytes < len(hash) {
mask := byte(
fullByteMask << (bitsPerByte - remainBits),
)
if hash[fullBytes]&mask != 0 {
return false
}
}
return true
}
// parseStampDate parses a hashcash date stamp.
// Supports YYMMDD and YYMMDDHHMMSS formats.
func parseStampDate(dateStr string) (time.Time, error) {
switch len(dateStr) {
case dateShortLen:
parsed, err := time.Parse(
dateFormatShort, dateStr,
)
if err != nil {
return time.Time{}, fmt.Errorf(
"parse date: %w", err,
)
}
return parsed, nil
case dateLongLen:
parsed, err := time.Parse(
dateFormatLong, dateStr,
)
if err != nil {
return time.Time{}, fmt.Errorf(
"parse date: %w", err,
)
}
return parsed, nil
default:
return time.Time{}, fmt.Errorf(
"%w: %q", errBadDateFormat, dateStr,
)
}
}
// pruneLoop periodically removes expired stamps from the
// spent set.
func (v *Validator) pruneLoop() {
ticker := time.NewTicker(pruneInterval)
defer ticker.Stop()
for range ticker.C {
v.prune()
}
}
func (v *Validator) prune() {
cutoff := time.Now().Add(-maxStampAge)
v.mu.Lock()
defer v.mu.Unlock()
for stamp, stampTime := range v.spent {
if stampTime.Before(cutoff) {
delete(v.spent, stamp)
}
}
}

261
internal/hashcash/hashcash_test.go
View File

@@ -1,261 +0,0 @@
package hashcash_test
import (
"crypto/rand"
"crypto/sha256"
"encoding/hex"
"fmt"
"math/big"
"testing"
"time"
"git.eeqj.de/sneak/neoirc/internal/hashcash"
)
const testBits = 2
// mintStampWithDate creates a valid hashcash stamp using
// the given date string.
func mintStampWithDate(
tb testing.TB,
bits int,
resource string,
date string,
) string {
tb.Helper()
prefix := fmt.Sprintf(
"1:%d:%s:%s::", bits, date, resource,
)
for {
counterVal, err := rand.Int(
rand.Reader, big.NewInt(1<<48),
)
if err != nil {
tb.Fatalf("random counter: %v", err)
}
stamp := prefix + hex.EncodeToString(
counterVal.Bytes(),
)
hash := sha256.Sum256([]byte(stamp))
if hasLeadingZeroBits(hash[:], bits) {
return stamp
}
}
}
// hasLeadingZeroBits checks if hash has at least numBits
// leading zero bits. Duplicated here for test minting.
func hasLeadingZeroBits(
hash []byte,
numBits int,
) bool {
fullBytes := numBits / 8
remainBits := numBits % 8
for idx := range fullBytes {
if hash[idx] != 0 {
return false
}
}
if remainBits > 0 && fullBytes < len(hash) {
mask := byte(0xFF << (8 - remainBits))
if hash[fullBytes]&mask != 0 {
return false
}
}
return true
}
func todayDate() string {
return time.Now().UTC().Format("060102")
}
func TestMintAndValidate(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("test-resource")
stamp := mintStampWithDate(
t, testBits, "test-resource", todayDate(),
)
err := validator.Validate(stamp, testBits)
if err != nil {
t.Fatalf("valid stamp rejected: %v", err)
}
}
func TestReplayDetection(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("test-resource")
stamp := mintStampWithDate(
t, testBits, "test-resource", todayDate(),
)
err := validator.Validate(stamp, testBits)
if err != nil {
t.Fatalf("first use failed: %v", err)
}
err = validator.Validate(stamp, testBits)
if err == nil {
t.Fatal("replay not detected")
}
}
func TestResourceMismatch(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("correct-resource")
stamp := mintStampWithDate(
t, testBits, "wrong-resource", todayDate(),
)
err := validator.Validate(stamp, testBits)
if err == nil {
t.Fatal("expected resource mismatch error")
}
}
func TestInvalidStampFormat(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("test-resource")
err := validator.Validate(
"not:a:valid:stamp", testBits,
)
if err == nil {
t.Fatal("expected error for bad format")
}
}
func TestBadVersion(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("test-resource")
stamp := fmt.Sprintf(
"2:%d:%s:%s::abc123",
testBits, todayDate(), "test-resource",
)
err := validator.Validate(stamp, testBits)
if err == nil {
t.Fatal("expected bad version error")
}
}
func TestInsufficientDifficulty(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("test-resource")
// Claimed bits=1, but we require testBits=2.
stamp := fmt.Sprintf(
"1:1:%s:%s::counter",
todayDate(), "test-resource",
)
err := validator.Validate(stamp, testBits)
if err == nil {
t.Fatal("expected insufficient bits error")
}
}
func TestExpiredStamp(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("test-resource")
oldDate := time.Now().Add(-72 * time.Hour).
UTC().Format("060102")
stamp := mintStampWithDate(
t, testBits, "test-resource", oldDate,
)
err := validator.Validate(stamp, testBits)
if err == nil {
t.Fatal("expected expired stamp error")
}
}
func TestZeroBitsSkipsValidation(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("test-resource")
err := validator.Validate("garbage", 0)
if err != nil {
t.Fatalf("zero bits should skip: %v", err)
}
}
func TestLongDateFormat(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("test-resource")
longDate := time.Now().UTC().Format("060102150405")
stamp := mintStampWithDate(
t, testBits, "test-resource", longDate,
)
err := validator.Validate(stamp, testBits)
if err != nil {
t.Fatalf("long date stamp rejected: %v", err)
}
}
func TestBadDateFormat(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("test-resource")
stamp := fmt.Sprintf(
"1:%d:BADDATE:%s::counter",
testBits, "test-resource",
)
err := validator.Validate(stamp, testBits)
if err == nil {
t.Fatal("expected bad date error")
}
}
func TestMultipleUniqueStamps(t *testing.T) {
t.Parallel()
validator := hashcash.NewValidator("test-resource")
for range 5 {
stamp := mintStampWithDate(
t, testBits, "test-resource", todayDate(),
)
err := validator.Validate(stamp, testBits)
if err != nil {
t.Fatalf("unique stamp rejected: %v", err)
}
}
}
func TestHigherBitsStillValid(t *testing.T) {
t.Parallel()
// Mint with bits=4 but validate requiring only 2.
validator := hashcash.NewValidator("test-resource")
stamp := mintStampWithDate(
t, 4, "test-resource", todayDate(),
)
err := validator.Validate(stamp, testBits)
if err != nil {
t.Fatalf(
"higher-difficulty stamp rejected: %v",
err,
)
}
}

21
internal/irc/commands.go
View File

@@ -1,21 +0,0 @@
package irc
// IRC command names (RFC 1459 / RFC 2812).
const (
CmdJoin = "JOIN"
CmdList = "LIST"
CmdLusers = "LUSERS"
CmdMode = "MODE"
CmdMotd = "MOTD"
CmdNames = "NAMES"
CmdNick = "NICK"
CmdNotice = "NOTICE"
CmdPart = "PART"
CmdPing = "PING"
CmdPong = "PONG"
CmdPrivmsg = "PRIVMSG"
CmdQuit = "QUIT"
CmdTopic = "TOPIC"
CmdWho = "WHO"
CmdWhois = "WHOIS"
)

150
internal/irc/numerics.go
View File

@@ -1,150 +0,0 @@
// Package irc provides constants and utilities for the
// IRC protocol, including numeric reply codes from
// RFC 1459 and RFC 2812, and standard command names.
package irc
// Connection registration replies (001-005).
const (
RplWelcome = 1
RplYourHost = 2
RplCreated = 3
RplMyInfo = 4
RplIsupport = 5
)
// Command responses (200-399).
const (
RplUmodeIs = 221
RplLuserClient = 251
RplLuserOp = 252
RplLuserUnknown = 253
RplLuserChannels = 254
RplLuserMe = 255
RplAway = 301
RplUserHost = 302
RplIson = 303
RplUnaway = 305
RplNowAway = 306
RplWhoisUser = 311
RplWhoisServer = 312
RplWhoisOperator = 313
RplEndOfWho = 315
RplWhoisIdle = 317
RplEndOfWhois = 318
RplWhoisChannels = 319
RplList = 322
RplListEnd = 323
RplChannelModeIs = 324
RplCreationTime = 329
RplNoTopic = 331
RplTopic = 332
RplTopicWhoTime = 333
RplInviting = 341
RplWhoReply = 352
RplNamReply = 353
RplEndOfNames = 366
RplBanList = 367
RplEndOfBanList = 368
RplMotd = 372
RplMotdStart = 375
RplEndOfMotd = 376
)
// Error replies (400-599).
const (
ErrNoSuchNick = 401
ErrNoSuchServer = 402
ErrNoSuchChannel = 403
ErrCannotSendToChan = 404
ErrTooManyChannels = 405
ErrNoRecipient = 411
ErrNoTextToSend = 412
ErrUnknownCommand = 421
ErrNoNicknameGiven = 431
ErrErroneusNickname = 432
ErrNicknameInUse = 433
ErrUserNotInChannel = 441
ErrNotOnChannel = 442
ErrNotRegistered = 451
ErrNeedMoreParams = 461
ErrAlreadyRegistered = 462
ErrChannelIsFull = 471
ErrInviteOnlyChan = 473
ErrBannedFromChan = 474
ErrBadChannelKey = 475
ErrChanOpPrivsNeeded = 482
)
// names maps numeric codes to their standard IRC names.
//
//nolint:gochecknoglobals
var names = map[int]string{
RplWelcome: "RPL_WELCOME",
RplYourHost: "RPL_YOURHOST",
RplCreated: "RPL_CREATED",
RplMyInfo: "RPL_MYINFO",
RplIsupport: "RPL_ISUPPORT",
RplUmodeIs: "RPL_UMODEIS",
RplLuserClient: "RPL_LUSERCLIENT",
RplLuserOp: "RPL_LUSEROP",
RplLuserUnknown: "RPL_LUSERUNKNOWN",
RplLuserChannels: "RPL_LUSERCHANNELS",
RplLuserMe: "RPL_LUSERME",
RplAway: "RPL_AWAY",
RplUserHost: "RPL_USERHOST",
RplIson: "RPL_ISON",
RplUnaway: "RPL_UNAWAY",
RplNowAway: "RPL_NOWAWAY",
RplWhoisUser: "RPL_WHOISUSER",
RplWhoisServer: "RPL_WHOISSERVER",
RplWhoisOperator: "RPL_WHOISOPERATOR",
RplEndOfWho: "RPL_ENDOFWHO",
RplWhoisIdle: "RPL_WHOISIDLE",
RplEndOfWhois: "RPL_ENDOFWHOIS",
RplWhoisChannels: "RPL_WHOISCHANNELS",
RplList: "RPL_LIST",
RplListEnd: "RPL_LISTEND", //nolint:misspell
RplChannelModeIs: "RPL_CHANNELMODEIS",
RplCreationTime: "RPL_CREATIONTIME",
RplNoTopic: "RPL_NOTOPIC",
RplTopic: "RPL_TOPIC",
RplTopicWhoTime: "RPL_TOPICWHOTIME",
RplInviting: "RPL_INVITING",
RplWhoReply: "RPL_WHOREPLY",
RplNamReply: "RPL_NAMREPLY",
RplEndOfNames: "RPL_ENDOFNAMES",
RplBanList: "RPL_BANLIST",
RplEndOfBanList: "RPL_ENDOFBANLIST",
RplMotd: "RPL_MOTD",
RplMotdStart: "RPL_MOTDSTART",
RplEndOfMotd: "RPL_ENDOFMOTD",
ErrNoSuchNick: "ERR_NOSUCHNICK",
ErrNoSuchServer: "ERR_NOSUCHSERVER",
ErrNoSuchChannel: "ERR_NOSUCHCHANNEL",
ErrCannotSendToChan: "ERR_CANNOTSENDTOCHAN",
ErrTooManyChannels: "ERR_TOOMANYCHANNELS",
ErrNoRecipient: "ERR_NORECIPIENT",
ErrNoTextToSend: "ERR_NOTEXTTOSEND",
ErrUnknownCommand: "ERR_UNKNOWNCOMMAND",
ErrNoNicknameGiven: "ERR_NONICKNAMEGIVEN",
ErrErroneusNickname: "ERR_ERRONEUSNICKNAME",
ErrNicknameInUse: "ERR_NICKNAMEINUSE",
ErrUserNotInChannel: "ERR_USERNOTINCHANNEL",
ErrNotOnChannel: "ERR_NOTONCHANNEL",
ErrNotRegistered: "ERR_NOTREGISTERED",
ErrNeedMoreParams: "ERR_NEEDMOREPARAMS",
ErrAlreadyRegistered: "ERR_ALREADYREGISTERED",
ErrChannelIsFull: "ERR_CHANNELISFULL",
ErrInviteOnlyChan: "ERR_INVITEONLYCHAN",
ErrBannedFromChan: "ERR_BANNEDFROMCHAN",
ErrBadChannelKey: "ERR_BADCHANNELKEY",
ErrChanOpPrivsNeeded: "ERR_CHANOPRIVSNEEDED",
}
// Name returns the standard IRC name for a numeric code
// (e.g., Name(2) returns "RPL_YOURHOST"). Returns an
// empty string if the code is unknown.
func Name(code int) string {
return names[code]
}

47
internal/middleware/middleware.go
View File

@@ -142,6 +142,20 @@ func (mware *Middleware) CORS() func(http.Handler) http.Handler {
})
}
// Auth returns middleware that performs authentication.
func (mware *Middleware) Auth() func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(
func(
writer http.ResponseWriter,
request *http.Request,
) {
mware.log.Info("AUTH: before request")
next.ServeHTTP(writer, request)
})
}
}
// Metrics returns middleware that records HTTP metrics.
func (mware *Middleware) Metrics() func(http.Handler) http.Handler {
metricsMiddleware := ghmm.New(ghmm.Config{ //nolint:exhaustruct // optional fields
@@ -166,36 +180,3 @@ func (mware *Middleware) MetricsAuth() func(http.Handler) http.Handler {
},
)
}
// cspPolicy is the Content-Security-Policy header value applied to all
// responses. The embedded SPA loads scripts and styles from same-origin
// files only (no inline scripts or inline style attributes), so a strict
// policy works without 'unsafe-inline'.
const cspPolicy = "default-src 'self'; " +
"script-src 'self'; " +
"style-src 'self'; " +
"connect-src 'self'; " +
"img-src 'self'; " +
"font-src 'self'; " +
"object-src 'none'; " +
"frame-ancestors 'none'; " +
"base-uri 'self'; " +
"form-action 'self'"
// CSP returns middleware that sets the Content-Security-Policy header on
// every response for defense-in-depth against XSS.
func (mware *Middleware) CSP() func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(
func(
writer http.ResponseWriter,
request *http.Request,
) {
writer.Header().Set(
"Content-Security-Policy",
cspPolicy,
)
next.ServeHTTP(writer, request)
})
}
}

1
internal/server/routes.go
View File

@@ -29,7 +29,6 @@ func (srv *Server) SetupRoutes() {
}
srv.router.Use(srv.mw.CORS())
srv.router.Use(srv.mw.CSP())
srv.router.Use(middleware.Timeout(routeTimeout))
if srv.sentryEnabled {

2
web/dist/app.js vendored Normal file
View File

File diff suppressed because one or more lines are too long

13
web/dist/index.html vendored Normal file
View File

@@ -0,0 +1,13 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>NeoIRC</title>
<link rel="stylesheet" href="/style.css">
</head>
<body>
<div id="root"></div>
<script type="module" src="/app.js"></script>
</body>
</html>

431
web/dist/style.css vendored Normal file
View File

@@ -0,0 +1,431 @@
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
:root {
--bg: #0a0e14;
--bg-secondary: #0d1117;
--bg-input: #161b22;
--bg-highlight: #1a2030;
--text: #c9d1d9;
--text-muted: #6e7681;
--accent: #58a6ff;
--accent-dim: #1f6feb;
--border: #21262d;
--nick: #79c0ff;
--timestamp: #484f58;
--tab-active: #58a6ff;
--tab-bg: #0d1117;
--tab-hover: #161b22;
--topic-bg: #0d1117;
--unread-bg: #da3633;
--warn: #d29922;
--op-color: #f0883e;
--voice-color: #3fb950;
--action-color: #bc8cff;
--system-color: #484f58;
}
html,
body,
#root {
height: 100%;
font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Courier New',
Courier, monospace;
font-size: 13px;
background: var(--bg);
color: var(--text);
}
/* Login screen */
.login-screen {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100%;
gap: 16px;
}
.login-screen h1 {
color: var(--accent);
font-size: 2em;
}
.login-screen input {
padding: 10px 16px;
font-size: 16px;
font-family: inherit;
background: var(--bg-input);
border: 1px solid var(--border);
color: var(--text);
border-radius: 4px;
width: 280px;
}
.login-screen button {
padding: 10px 24px;
font-size: 16px;
font-family: inherit;
background: var(--accent-dim);
border: none;
color: white;
border-radius: 4px;
cursor: pointer;
}
.login-screen button:hover {
background: var(--accent);
}
.login-screen .error {
color: var(--unread-bg);
}
.login-screen .motd {
color: var(--text-muted);
max-width: 400px;
text-align: center;
white-space: pre-wrap;
}
/* Main layout */
.app {
display: flex;
flex-direction: column;
height: 100%;
}
/* Tab bar */
.tab-bar {
display: flex;
background: var(--bg-secondary);
border-bottom: 1px solid var(--border);
overflow-x: auto;
flex-shrink: 0;
align-items: stretch;
min-height: 32px;
}
.tab-bar::-webkit-scrollbar {
height: 2px;
}
.tab-bar::-webkit-scrollbar-thumb {
background: var(--border);
}
.tab {
display: flex;
align-items: center;
padding: 6px 12px;
cursor: pointer;
border-bottom: 2px solid transparent;
white-space: nowrap;
color: var(--text-muted);
user-select: none;
font-size: 12px;
gap: 6px;
transition:
background 0.1s,
color 0.1s;
}
.tab:hover {
background: var(--tab-hover);
color: var(--text);
}
.tab.active {
color: var(--text);
border-bottom-color: var(--tab-active);
background: var(--bg-highlight);
}
.tab.server {
font-weight: bold;
}
.tab .tab-name {
overflow: hidden;
text-overflow: ellipsis;
}
.tab .close-btn {
color: var(--text-muted);
font-size: 14px;
line-height: 1;
flex-shrink: 0;
}
.tab .close-btn:hover {
color: var(--unread-bg);
}
.tab .unread-badge {
display: inline-block;
background: var(--unread-bg);
color: white;
font-size: 10px;
font-weight: bold;
padding: 0 5px;
border-radius: 8px;
min-width: 16px;
text-align: center;
line-height: 16px;
flex-shrink: 0;
}
/* Connection status */
.connection-status {
display: flex;
align-items: center;
padding: 0 12px;
background: var(--warn);
color: var(--bg);
font-size: 11px;
font-weight: bold;
white-space: nowrap;
flex-shrink: 0;
}
/* Topic bar */
.topic-bar {
padding: 4px 12px;
background: var(--topic-bg);
border-bottom: 1px solid var(--border);
color: var(--text-muted);
font-size: 12px;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
flex-shrink: 0;
}
.topic-bar .topic-label {
color: var(--accent);
font-weight: bold;
}
/* Content area */
.content {
display: flex;
flex: 1;
overflow: hidden;
}
/* Messages */
.messages-pane {
flex: 1;
display: flex;
flex-direction: column;
overflow: hidden;
min-width: 0;
}
.messages {
flex: 1;
overflow-y: auto;
padding: 4px 0;
}
.messages::-webkit-scrollbar {
width: 6px;
}
.messages::-webkit-scrollbar-thumb {
background: var(--border);
border-radius: 3px;
}
.message {
padding: 1px 12px;
line-height: 1.5;
word-wrap: break-word;
}
.message:hover {
background: var(--bg-highlight);
}
.message .timestamp {
color: var(--timestamp);
font-size: 11px;
margin-right: 6px;
}
.message .nick {
font-weight: bold;
margin-right: 6px;
}
.message .nick::before {
content: '<';
color: var(--text-muted);
}
.message .nick::after {
content: '>';
color: var(--text-muted);
}
.message.system {
color: var(--system-color);
font-style: italic;
}
.message.system .timestamp {
color: var(--timestamp);
}
.message.system .content::before {
content: '*** ';
}
.message.action {
color: var(--action-color);
}
.message.action .timestamp {
color: var(--timestamp);
}
.message.action .action-nick {
font-weight: bold;
}
/* Input bar — full width at bottom */
.input-bar {
display: flex;
align-items: center;
border-top: 1px solid var(--border);
background: var(--bg-secondary);
flex-shrink: 0;
}
.input-bar .input-nick {
padding: 0 8px 0 12px;
color: var(--accent);
font-weight: bold;
white-space: nowrap;
flex-shrink: 0;
font-size: 13px;
}
.input-bar .input-nick::after {
content: '>';
color: var(--text-muted);
margin-left: 1px;
}
.input-bar input {
flex: 1;
padding: 8px 8px;
font-family: inherit;
font-size: 13px;
background: transparent;
border: none;
color: var(--text);
outline: none;
}
.input-bar input::placeholder {
color: var(--text-muted);
}
/* User list */
.user-list {
width: 170px;
background: var(--bg-secondary);
border-left: 1px solid var(--border);
display: flex;
flex-direction: column;
flex-shrink: 0;
}
.user-list-header {
padding: 6px 10px;
color: var(--text-muted);
font-size: 11px;
text-transform: uppercase;
letter-spacing: 0.5px;
border-bottom: 1px solid var(--border);
font-weight: bold;
flex-shrink: 0;
}
.user-list-entries {
overflow-y: auto;
flex: 1;
padding: 4px 0;
}
.user-list-entries::-webkit-scrollbar {
width: 4px;
}
.user-list-entries::-webkit-scrollbar-thumb {
background: var(--border);
}
.user-list .user {
padding: 2px 10px;
font-size: 12px;
cursor: pointer;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
color: var(--text);
}
.user-list .user:hover {
background: var(--tab-hover);
}
.user-list .user.op {
color: var(--op-color);
}
.user-list .user.voice {
color: var(--voice-color);
}
/* Server tab messages */
.server-messages {
color: var(--text-muted);
padding: 8px 12px;
white-space: pre-wrap;
overflow-y: auto;
flex: 1;
}
.server-messages .message {
padding: 1px 0;
}
.server-messages .message:hover {
background: var(--bg-highlight);
}
/* Responsive */
@media (max-width: 600px) {
.user-list {
display: none;
}
.tab {
padding: 5px 8px;
font-size: 11px;
}
.input-bar .input-nick {
padding-left: 8px;
font-size: 12px;
}
.input-bar input {
font-size: 12px;
}
}

1130
web/src/app.jsx
View File

File diff suppressed because it is too large Load Diff

499
web/src/style.css
View File

@@ -6,282 +6,218 @@
:root {
--bg: #0a0e14;
--bg-panel: #0d1117;
--bg-input: #0d1117;
--bg-tab: #161b22;
--bg-tab-active: #0d1117;
--bg-topic: #0d1117;
--bg-secondary: #0d1117;
--bg-input: #161b22;
--bg-highlight: #1a2030;
--text: #c9d1d9;
--text-dim: #6e7681;
--text-bright: #e6edf3;
--text-muted: #6e7681;
--accent: #58a6ff;
--accent-dim: #1f6feb;
--border: #21262d;
--system: #7d8590;
--action: #d2a8ff;
--warn: #d29922;
--error: #f85149;
--unread: #f0883e;
--nick-brackets: #6e7681;
--nick: #79c0ff;
--timestamp: #484f58;
--input-bg: #161b22;
--prompt: #3fb950;
--tab-indicator: #58a6ff;
--user-list-bg: #0d1117;
--user-list-header: #484f58;
--tab-active: #58a6ff;
--tab-bg: #0d1117;
--tab-hover: #161b22;
--topic-bg: #0d1117;
--unread-bg: #da3633;
--warn: #d29922;
--op-color: #f0883e;
--voice-color: #3fb950;
--action-color: #bc8cff;
--system-color: #484f58;
}
html,
body,
#root {
height: 100%;
font-family: "JetBrains Mono", "Cascadia Code", "Fira Code", "SF Mono",
"Consolas", "Liberation Mono", "Courier New", monospace;
font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Courier New',
Courier, monospace;
font-size: 13px;
background: var(--bg);
color: var(--text);
overflow: hidden;
}
/* ============================================
Login Screen
============================================ */
/* Login screen */
.login-screen {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100%;
background: var(--bg);
gap: 16px;
}
.login-box {
text-align: center;
max-width: 360px;
width: 100%;
padding: 32px;
}
.login-box h1 {
.login-screen h1 {
color: var(--accent);
font-size: 1.8em;
margin-bottom: 16px;
font-weight: 400;
font-size: 2em;
}
.login-box .motd {
color: var(--accent);
font-size: 11px;
margin-bottom: 20px;
text-align: left;
white-space: pre;
.login-screen input {
padding: 10px 16px;
font-size: 16px;
font-family: inherit;
line-height: 1.2;
overflow-x: auto;
}
.login-box form {
display: flex;
flex-direction: column;
gap: 8px;
align-items: stretch;
}
.login-box label {
color: var(--text-dim);
text-align: left;
font-size: 12px;
}
.login-box input {
padding: 8px 12px;
font-family: inherit;
font-size: 14px;
background: var(--input-bg);
background: var(--bg-input);
border: 1px solid var(--border);
color: var(--text-bright);
border-radius: 3px;
outline: none;
color: var(--text);
border-radius: 4px;
width: 280px;
}
.login-box input:focus {
border-color: var(--accent-dim);
}
.login-box button {
padding: 8px 16px;
.login-screen button {
padding: 10px 24px;
font-size: 16px;
font-family: inherit;
font-size: 14px;
background: var(--accent-dim);
border: none;
color: var(--text-bright);
border-radius: 3px;
color: white;
border-radius: 4px;
cursor: pointer;
margin-top: 4px;
}
.login-box button:hover {
.login-screen button:hover {
background: var(--accent);
}
.login-box .error {
color: var(--error);
font-size: 12px;
margin-top: 8px;
.login-screen .error {
color: var(--unread-bg);
}
/* ============================================
IRC App Layout
============================================ */
.login-screen .motd {
color: var(--text-muted);
max-width: 400px;
text-align: center;
white-space: pre-wrap;
}
.irc-app {
/* Main layout */
.app {
display: flex;
flex-direction: column;
height: 100%;
overflow: hidden;
}
/* ============================================
Tab Bar
============================================ */
/* Tab bar */
.tab-bar {
display: flex;
background: var(--bg-tab);
background: var(--bg-secondary);
border-bottom: 1px solid var(--border);
flex-shrink: 0;
height: 32px;
align-items: stretch;
}
.tabs {
display: flex;
overflow-x: auto;
flex: 1;
scrollbar-width: none;
flex-shrink: 0;
align-items: stretch;
min-height: 32px;
}
.tabs::-webkit-scrollbar {
display: none;
.tab-bar::-webkit-scrollbar {
height: 2px;
}
.tab-bar::-webkit-scrollbar-thumb {
background: var(--border);
}
.tab {
display: flex;
align-items: center;
padding: 0 12px;
padding: 6px 12px;
cursor: pointer;
color: var(--text-dim);
border-bottom: 2px solid transparent;
white-space: nowrap;
color: var(--text-muted);
user-select: none;
border-right: 1px solid var(--border);
font-size: 12px;
gap: 4px;
position: relative;
gap: 6px;
transition:
background 0.1s,
color 0.1s;
}
.tab:hover {
background: var(--tab-hover);
color: var(--text);
background: rgba(255, 255, 255, 0.03);
}
.tab.active {
color: var(--text-bright);
background: var(--bg-tab-active);
border-bottom: 2px solid var(--tab-indicator);
margin-bottom: -1px;
color: var(--text);
border-bottom-color: var(--tab-active);
background: var(--bg-highlight);
}
.tab.has-unread .tab-label {
color: var(--unread);
.tab.server {
font-weight: bold;
}
.tab .unread-count {
color: var(--unread);
font-size: 11px;
font-weight: bold;
.tab .tab-name {
overflow: hidden;
text-overflow: ellipsis;
}
.tab-close {
color: var(--text-dim);
.tab .close-btn {
color: var(--text-muted);
font-size: 14px;
line-height: 1;
margin-left: 2px;
flex-shrink: 0;
}
.tab-close:hover {
color: var(--error);
.tab .close-btn:hover {
color: var(--unread-bg);
}
.status-area {
.tab .unread-badge {
display: inline-block;
background: var(--unread-bg);
color: white;
font-size: 10px;
font-weight: bold;
padding: 0 5px;
border-radius: 8px;
min-width: 16px;
text-align: center;
line-height: 16px;
flex-shrink: 0;
}
/* Connection status */
.connection-status {
display: flex;
align-items: center;
gap: 10px;
padding: 0 12px;
flex-shrink: 0;
font-size: 12px;
}
.status-nick {
color: var(--accent);
background: var(--warn);
color: var(--bg);
font-size: 11px;
font-weight: bold;
white-space: nowrap;
flex-shrink: 0;
}
.status-warn {
color: var(--warn);
animation: blink 1.5s ease-in-out infinite;
}
@keyframes blink {
0%,
100% {
opacity: 1;
}
50% {
opacity: 0.4;
}
}
/* ============================================
Topic Bar
============================================ */
/* Topic bar */
.topic-bar {
padding: 4px 12px;
background: var(--bg-topic);
background: var(--topic-bg);
border-bottom: 1px solid var(--border);
color: var(--text-muted);
font-size: 12px;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
flex-shrink: 0;
line-height: 1.5;
}
.topic-label {
color: var(--text-dim);
.topic-bar .topic-label {
color: var(--accent);
font-weight: bold;
}
.topic-text {
color: var(--text);
}
/* ============================================
Main Content Area
============================================ */
.main-area {
/* Content area */
.content {
display: flex;
flex: 1;
overflow: hidden;
min-height: 0;
}
/* ============================================
Messages Panel
============================================ */
.messages-panel {
/* Messages */
.messages-pane {
flex: 1;
display: flex;
flex-direction: column;
@@ -289,178 +225,207 @@ body,
min-width: 0;
}
.messages-scroll {
.messages {
flex: 1;
overflow-y: auto;
padding: 4px 8px;
scrollbar-width: thin;
scrollbar-color: var(--border) transparent;
padding: 4px 0;
}
.messages-scroll::-webkit-scrollbar {
width: 8px;
.messages::-webkit-scrollbar {
width: 6px;
}
.messages-scroll::-webkit-scrollbar-track {
background: transparent;
}
.messages-scroll::-webkit-scrollbar-thumb {
.messages::-webkit-scrollbar-thumb {
background: var(--border);
border-radius: 4px;
border-radius: 3px;
}
/* ============================================
Message Lines
============================================ */
.message {
padding: 1px 0;
line-height: 1.4;
white-space: pre-wrap;
padding: 1px 12px;
line-height: 1.5;
word-wrap: break-word;
font-size: 13px;
}
.message:hover {
background: var(--bg-highlight);
}
.message .timestamp {
color: var(--timestamp);
font-size: 12px;
font-size: 11px;
margin-right: 6px;
}
.message .nick {
font-weight: bold;
margin-right: 6px;
}
.message .content {
.message .nick::before {
content: '<';
color: var(--text-muted);
}
.message .nick::after {
content: '>';
color: var(--text-muted);
}
.message.system {
color: var(--system-color);
font-style: italic;
}
.message.system .timestamp {
color: var(--timestamp);
}
.message.system .content::before {
content: '*** ';
}
.message.action {
color: var(--action-color);
}
.message.action .timestamp {
color: var(--timestamp);
}
.message.action .action-nick {
font-weight: bold;
}
/* Input bar — full width at bottom */
.input-bar {
display: flex;
align-items: center;
border-top: 1px solid var(--border);
background: var(--bg-secondary);
flex-shrink: 0;
}
.input-bar .input-nick {
padding: 0 8px 0 12px;
color: var(--accent);
font-weight: bold;
white-space: nowrap;
flex-shrink: 0;
font-size: 13px;
}
.input-bar .input-nick::after {
content: '>';
color: var(--text-muted);
margin-left: 1px;
}
.input-bar input {
flex: 1;
padding: 8px 8px;
font-family: inherit;
font-size: 13px;
background: transparent;
border: none;
color: var(--text);
outline: none;
}
/* System messages (joins, parts, quits, etc.) */
.system-message {
color: var(--system);
.input-bar input::placeholder {
color: var(--text-muted);
}
.system-message .system-text {
color: var(--system);
}
/* /me action messages */
.action-message .action-text {
color: var(--action);
}
/* ============================================
User List (Right Panel)
============================================ */
/* User list */
.user-list {
width: 160px;
background: var(--user-list-bg);
width: 170px;
background: var(--bg-secondary);
border-left: 1px solid var(--border);
display: flex;
flex-direction: column;
flex-shrink: 0;
overflow: hidden;
}
.user-list-header {
padding: 6px 10px;
color: var(--user-list-header);
color: var(--text-muted);
font-size: 11px;
text-transform: uppercase;
letter-spacing: 0.5px;
border-bottom: 1px solid var(--border);
font-weight: bold;
flex-shrink: 0;
}
.user-list-entries {
overflow-y: auto;
padding: 4px 0;
flex: 1;
scrollbar-width: thin;
scrollbar-color: var(--border) transparent;
padding: 4px 0;
}
.nick-entry {
.user-list-entries::-webkit-scrollbar {
width: 4px;
}
.user-list-entries::-webkit-scrollbar-thumb {
background: var(--border);
}
.user-list .user {
padding: 2px 10px;
font-size: 12px;
cursor: pointer;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
line-height: 1.5;
color: var(--text);
}
.nick-entry:hover {
background: rgba(255, 255, 255, 0.04);
.user-list .user:hover {
background: var(--tab-hover);
}
.nick-prefix {
color: var(--text-dim);
display: inline-block;
width: 1ch;
text-align: right;
margin-right: 1px;
.user-list .user.op {
color: var(--op-color);
}
.nick-name {
font-weight: normal;
.user-list .user.voice {
color: var(--voice-color);
}
/* ============================================
Input Line (Bottom)
============================================ */
.input-line {
display: flex;
align-items: center;
background: var(--input-bg);
border-top: 1px solid var(--border);
flex-shrink: 0;
height: 36px;
padding: 0 8px;
gap: 6px;
}
.input-prompt {
color: var(--prompt);
font-size: 13px;
flex-shrink: 0;
white-space: nowrap;
}
.input-line input {
/* Server tab messages */
.server-messages {
color: var(--text-muted);
padding: 8px 12px;
white-space: pre-wrap;
overflow-y: auto;
flex: 1;
padding: 4px 0;
font-family: inherit;
font-size: 13px;
background: transparent;
border: none;
color: var(--text-bright);
outline: none;
caret-color: var(--accent);
}
.input-line input::placeholder {
color: var(--text-dim);
font-style: italic;
.server-messages .message {
padding: 1px 0;
}
/* ============================================
Responsive
============================================ */
.server-messages .message:hover {
background: var(--bg-highlight);
}
/* Responsive */
@media (max-width: 600px) {
.user-list {
display: none;
}
.tab {
padding: 0 8px;
padding: 5px 8px;
font-size: 11px;
}
.input-prompt {
.input-bar .input-nick {
padding-left: 8px;
font-size: 12px;
}
.input-bar input {
font-size: 12px;
}
}