10 Commits

Author SHA1 Message Date
clawbot
cdb808bc4f fix: update internal/irc import to pkg/irc after rebase
All checks were successful
check / check (push) Successful in 4s
2026-03-10 11:41:12 -07:00
user
6fece9a78c fix: rename hashcash→pow_token JSON field reference in README 2026-03-10 11:40:33 -07:00
clawbot
b47a05a4d7 fix: complete pow_token rename in README documentation
Update 4 remaining references where the JSON field name was still
'hashcash' instead of 'pow_token' in README.md.
2026-03-10 11:40:33 -07:00
user
5b4ac75b23 rename JSON field 'hashcash' to 'pow_token' in API request body 2026-03-10 11:40:33 -07:00
clawbot
ba304e322e test: add hashcash validator tests with bits=2
Comprehensive test suite covering:
- Mint and validate with bits=2
- Replay detection
- Resource mismatch
- Invalid format, bad version, bad date
- Insufficient difficulty
- Expired stamps
- Zero bits bypass
- Long date format (YYMMDDHHMMSS)
- Multiple unique stamps
- Higher difficulty stamps accepted at lower threshold
2026-03-10 11:40:33 -07:00
clawbot
f5d1594150 refactor: remove dead doWithHeaders/extraHeaders code from CLI API client 2026-03-10 11:40:33 -07:00
clawbot
09a1dddbd0 refactor: move hashcash stamp from X-Hashcash header to JSON request body
Move the hashcash proof-of-work stamp from the X-Hashcash HTTP header
into the JSON request body as a 'hashcash' field on POST /api/v1/session.

Updated server handler, CLI client, SPA client, and documentation.
2026-03-10 11:40:33 -07:00
clawbot
db4cd9f055 refactor: move CLI code from cmd/ to internal/cli
Move all non-bootstrapping CLI code to internal/cli package.
cmd/neoirc-cli/main.go now contains only minimal bootstrapping
that calls cli.Run(). The App struct, UI, command handlers, poll
loop, and api client are now in internal/cli/ and internal/cli/api/.
2026-03-10 11:40:32 -07:00
clawbot
2f905bda9f fix: move hashcash PoW from build artifact to JSX source
The hashcash proof-of-work implementation was incorrectly added to the
build artifact web/dist/app.js instead of the source file web/src/app.jsx.
Running web/build.sh would overwrite all hashcash changes.

Changes:
- Add checkLeadingZeros() and mintHashcash() functions to app.jsx
- Integrate hashcash into LoginScreen: fetch hashcash_bits from /server,
  compute stamp via Web Crypto API before session creation, show
  'Computing proof-of-work...' feedback
- Remove web/dist/ from git tracking (build artifacts)
- Add web/dist/ to .gitignore
2026-03-10 11:40:18 -07:00
clawbot
f53b8f13eb feat: implement hashcash proof-of-work for session creation
Add SHA-256-based hashcash proof-of-work requirement to POST /session
to prevent abuse via rapid session creation. The server advertises the
required difficulty via GET /server (hashcash_bits field), and clients
must include a valid stamp in the X-Hashcash request header.

Server-side:
- New internal/hashcash package with stamp validation (format, bits,
  date, resource, replay prevention via in-memory spent set)
- Config: NEOIRC_HASHCASH_BITS env var (default 20, set 0 to disable)
- GET /server includes hashcash_bits when > 0
- POST /session validates X-Hashcash header when enabled
- Returns HTTP 402 for missing/invalid stamps

Client-side:
- SPA: fetches hashcash_bits from /server, computes stamp using Web
  Crypto API with batched SHA-256, shows 'Computing proof-of-work...'
  feedback during computation
- CLI: api package gains MintHashcash() function, CreateSession()
  auto-fetches server info and computes stamp when required

Stamp format: 1:bits:YYMMDD:resource::counter (standard hashcash)

closes #11
2026-03-10 11:40:18 -07:00
21 changed files with 83 additions and 1553 deletions

360
README.md
View File

@@ -113,9 +113,8 @@ mechanisms or stuffing data into CTCP.
Everything else is IRC. `PRIVMSG`, `JOIN`, `PART`, `NICK`, `TOPIC`, `MODE`, Everything else is IRC. `PRIVMSG`, `JOIN`, `PART`, `NICK`, `TOPIC`, `MODE`,
`KICK`, `353`, `433` — same commands, same semantics. Channels start with `#`. `KICK`, `353`, `433` — same commands, same semantics. Channels start with `#`.
Joining a nonexistent channel creates it. Channels disappear when empty. Nicks Joining a nonexistent channel creates it. Channels disappear when empty. Nicks
are unique per server. Identity starts with a key a nick is a display name. are unique per server. There are no accounts — identity is a key, a nick is a
Accounts are optional: you can create an anonymous session instantly, or display name.
register with a password for multi-client access to a single session.
### On the resemblance to JSON-RPC ### On the resemblance to JSON-RPC
@@ -149,45 +148,16 @@ not arbitrary choices — each one follows from the project's core thesis that
IRC's command model is correct and only the transport and session management IRC's command model is correct and only the transport and session management
need to change. need to change.
### Identity & Sessions — Dual Authentication Model ### Identity & Sessions — No Accounts
The server supports two authentication paths: **anonymous sessions** for There are no accounts, no registration, no passwords. Identity is a signing
instant access, and **optional account registration** for multi-client access. key; a nick is just a display name. The two are decoupled.
#### Anonymous Sessions (No Account Required)
The simplest entry point. No registration, no passwords.
- **Session creation**: client sends `POST /api/v1/session` with a desired - **Session creation**: client sends `POST /api/v1/session` with a desired
nick → server assigns an **auth token** (64 hex characters of nick → server assigns an **auth token** (64 hex characters of
cryptographically random bytes) and returns the user ID, nick, and token. cryptographically random bytes) and returns the user ID, nick, and token.
- The auth token implicitly identifies the client. Clients present it via - The auth token implicitly identifies the client. Clients present it via
`Authorization: Bearer <token>`. `Authorization: Bearer <token>`.
- Anonymous sessions are ephemeral — when the session expires or the user
QUITs, the nick is released and there is no way to reclaim it.
#### Registered Accounts (Optional)
For users who want multi-client access (multiple devices sharing one session):
- **Registration**: client sends `POST /api/v1/register` with a nick and
password (minimum 8 characters) → server creates a session with the
password hashed via bcrypt, and returns the user ID, nick, and auth token.
- **Login**: client sends `POST /api/v1/login` with nick and password →
server verifies the password against the stored bcrypt hash and creates a
new client token for the existing session. This enables multi-client
access: logging in from a new device adds a client to the existing session
rather than creating a new one, so channel memberships and message queues
are shared. Note: login only works while the session still exists — if all
clients have logged out or the user has sent QUIT, the session is deleted
and the registration is lost.
- Registered accounts cannot be logged into via `POST /api/v1/session`
that endpoint is for anonymous sessions only.
- Anonymous sessions (created via `/session`) cannot be logged into via
`/login` because they have no password set.
#### Common Properties (Both Paths)
- Nicks are changeable via the `NICK` command; the server-assigned user ID is - Nicks are changeable via the `NICK` command; the server-assigned user ID is
the stable identity. the stable identity.
- Server-assigned IDs — clients do not choose their own IDs. - Server-assigned IDs — clients do not choose their own IDs.
@@ -195,17 +165,11 @@ For users who want multi-client access (multiple devices sharing one session):
in the token, no client-side decode. The server is the sole authority on in the token, no client-side decode. The server is the sole authority on
token validity. token validity.
**Rationale:** IRC has no accounts. You connect, pick a nick, and talk. **Rationale:** IRC has no accounts. You connect, pick a nick, and talk. Adding
Anonymous sessions preserve that simplicity — instant access, zero friction. registration, email verification, or OAuth would solve a problem nobody asked
But some users want to access the same session from multiple devices without about and add complexity that drives away casual users. Identity verification
a bouncer. Optional registration with password enables multi-client login is handled at the message layer via cryptographic signatures (see
without adding friction for casual users: if you don't want an account, [Security Model](#security-model)), not at the session layer.
don't create one. Note: in the current implementation, both anonymous and
registered sessions are deleted when the last client disconnects (QUIT or
logout); registration does not make a session survive all-client
removal. Identity verification at the message layer via cryptographic
signatures (see [Security Model](#security-model)) remains independent
of account registration.
### Nick Semantics ### Nick Semantics
@@ -243,12 +207,12 @@ User Session
└── Client C (token_c, queue_c) └── Client C (token_c, queue_c)
``` ```
**Multi-client via login:** The `POST /api/v1/login` endpoint adds a new **Current MVP note:** The current implementation creates a new user (with new
client to an existing registered session, enabling true multi-client support nick) per `POST /api/v1/session` call. True multi-client (multiple tokens
(multiple tokens sharing one nick/session with independent message queues). sharing one nick/session) is supported by the schema (`client_queues` is keyed
Anonymous sessions created via `POST /api/v1/session` always create a new by user_id, and multiple tokens can point to the same user) but the session
user with a new nick. A future endpoint to "add a client to an existing creation endpoint does not yet support "add a client to an existing session."
anonymous session" is planned but not yet implemented. This will be added post-MVP.
**Rationale:** The fundamental IRC mobile problem is that you can't have your **Rationale:** The fundamental IRC mobile problem is that you can't have your
phone and laptop connected simultaneously without a bouncer. Server-side phone and laptop connected simultaneously without a bouncer. Server-side
@@ -363,8 +327,8 @@ needs to revoke a token, change the expiry model, or add/remove claims, JWT
clients may break or behave incorrectly. clients may break or behave incorrectly.
Opaque tokens are simpler: Opaque tokens are simpler:
- Server generates 32 random bytes → hex-encodes → stores SHA-256 hash - Server generates 32 random bytes → hex-encodes → stores hash
- Client presents the raw token; server hashes and looks it up - Client presents the token; server looks it up
- Revocation is a database delete - Revocation is a database delete
- No clock skew issues, no algorithm confusion, no "none" algorithm attacks - No clock skew issues, no algorithm confusion, no "none" algorithm attacks
- Token format can change without breaking clients - Token format can change without breaking clients
@@ -391,8 +355,6 @@ The entire read/write loop for a client is two endpoints. Everything else
### Session Lifecycle ### Session Lifecycle
#### Anonymous Session
``` ```
┌─ Client ──────────────────────────────────────────────────┐ ┌─ Client ──────────────────────────────────────────────────┐
│ │ │ │
@@ -423,30 +385,6 @@ The entire read/write loop for a client is two endpoints. Everything else
└────────────────────────────────────────────────────────────┘ └────────────────────────────────────────────────────────────┘
``` ```
#### Registered Account
```
┌─ Client ──────────────────────────────────────────────────┐
│ │
│ 1. POST /api/v1/register │
│ {"nick":"alice", "password":"s3cret!!"} │
│ → {"id":1, "nick":"alice", "token":"a1b2c3..."} │
│ (Session created with bcrypt-hashed password) │
│ │
│ ... use the API normally (JOIN, PRIVMSG, poll, etc.) ... │
│ │
│ (From another device, while session is still active) │
│ │
│ 2. POST /api/v1/login │
│ {"nick":"alice", "password":"s3cret!!"} │
│ → {"id":1, "nick":"alice", "token":"d4e5f6..."} │
│ (New client added to existing session — channels │
│ and message queues are preserved. If all clients │
│ have logged out, session no longer exists.) │
│ │
└────────────────────────────────────────────────────────────┘
```
### Queue Architecture ### Queue Architecture
``` ```
@@ -1096,105 +1034,6 @@ TOKEN=$(curl -s -X POST http://localhost:8080/api/v1/session \
echo $TOKEN echo $TOKEN
``` ```
### POST /api/v1/register — Register Account
Create a new user session with a password. The password is hashed
with bcrypt and stored server-side. The password enables login from
additional clients via `POST /api/v1/login` while the session
remains active.
**Request Body:**
```json
{"nick": "alice", "password": "mypassword"}
```
| Field | Type | Required | Constraints |
|------------|--------|----------|-------------|
| `nick` | string | Yes | 132 characters, must be unique on the server |
| `password` | string | Yes | Minimum 8 characters |
**Response:** `201 Created`
```json
{
"id": 1,
"nick": "alice",
"token": "494ba9fc0f2242873fc5c285dd4a24fc3844ba5e67789a17e69b6fe5f8c132e3"
}
```
| Field | Type | Description |
|---------|---------|-------------|
| `id` | integer | Server-assigned user ID |
| `nick` | string | Confirmed nick |
| `token` | string | 64-character hex auth token |
**Errors:**
| Status | Error | When |
|--------|-------|------|
| 400 | `invalid nick format` | Nick doesn't match allowed format |
| 400 | `password must be at least 8 characters` | Password too short |
| 409 | `nick already taken` | Another active session holds this nick |
**curl example:**
```bash
TOKEN=$(curl -s -X POST http://localhost:8080/api/v1/register \
-H 'Content-Type: application/json' \
-d '{"nick":"alice","password":"mypassword"}' | jq -r .token)
echo $TOKEN
```
### POST /api/v1/login — Login to Account
Authenticate with a previously registered nick and password. Creates a new
client token for the existing session, preserving channel memberships and
message queues. This is how multi-client access works for registered accounts:
each login adds a new client to the session.
On successful login, the server enqueues MOTD messages and synthetic channel
state (JOIN + TOPIC + NAMES for each channel the session belongs to) into the
new client's queue, so the client can immediately restore its UI state.
**Request Body:**
```json
{"nick": "alice", "password": "mypassword"}
```
| Field | Type | Required | Constraints |
|------------|--------|----------|-------------|
| `nick` | string | Yes | Must match a registered account |
| `password` | string | Yes | Must match the account's password |
**Response:** `200 OK`
```json
{
"id": 1,
"nick": "alice",
"token": "7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f"
}
```
| Field | Type | Description |
|---------|---------|-------------|
| `id` | integer | Session ID (same as when registered) |
| `nick` | string | Current nick |
| `token` | string | New 64-character hex auth token for this client |
**Errors:**
| Status | Error | When |
|--------|-------|------|
| 400 | `nick and password required` | Missing nick or password |
| 401 | `invalid credentials` | Wrong password, nick not found, or account has no password |
**curl example:**
```bash
TOKEN=$(curl -s -X POST http://localhost:8080/api/v1/login \
-H 'Content-Type: application/json' \
-d '{"nick":"alice","password":"mypassword"}' | jq -r .token)
echo $TOKEN
```
### GET /api/v1/state — Get Session State ### GET /api/v1/state — Get Session State
Return the current user's session state. Return the current user's session state.
@@ -1560,40 +1399,13 @@ Return server metadata. No authentication required.
### GET /.well-known/healthcheck.json — Health Check ### GET /.well-known/healthcheck.json — Health Check
Standard health check endpoint. No authentication required. Returns server Standard health check endpoint. No authentication required.
health status and runtime statistics.
**Response:** `200 OK` **Response:** `200 OK`
```json ```json
{ {"status": "ok"}
"status": "ok",
"now": "2024-01-15T12:00:00.000000000Z",
"uptimeSeconds": 3600,
"uptimeHuman": "1h0m0s",
"version": "0.1.0",
"appname": "neoirc",
"maintenanceMode": false,
"sessions": 42,
"clients": 85,
"queuedLines": 128,
"channels": 7,
"connectionsSinceBoot": 200,
"sessionsSinceBoot": 150,
"messagesSinceBoot": 5000
}
``` ```
| Field | Description |
| ---------------------- | ------------------------------------------------- |
| `sessions` | Current number of active sessions |
| `clients` | Current number of connected clients |
| `queuedLines` | Total entries in client output queues |
| `channels` | Current number of channels |
| `connectionsSinceBoot` | Total client connections since server start |
| `sessionsSinceBoot` | Total sessions created since server start |
| `messagesSinceBoot` | Total PRIVMSG/NOTICE messages sent since server start |
--- ---
## Message Flow ## Message Flow
@@ -1778,16 +1590,9 @@ authenticity.
### Authentication ### Authentication
- **Session auth**: Opaque bearer tokens (64 hex chars = 256 bits of entropy). - **Session auth**: Opaque bearer tokens (64 hex chars = 256 bits of entropy).
Tokens are hashed (SHA-256) before storage and validated on every request. Tokens are stored in the database and validated on every request.
- **Anonymous sessions**: `POST /api/v1/session` requires only a nick. No - **No passwords**: Session creation requires only a nick. The token is the
password, instant access. The token is the sole credential. sole credential.
- **Registered accounts**: `POST /api/v1/register` accepts a nick and password
(minimum 8 characters). The password is hashed with bcrypt at the default
cost factor and stored alongside the session. `POST /api/v1/login`
authenticates against the stored hash and issues a new client token.
- **Password security**: Passwords are never stored in plain text. bcrypt
handles salting and key stretching automatically. Anonymous sessions have
an empty `password_hash` and cannot be logged into via `/login`.
- **Token security**: Tokens should be treated like session cookies. Transmit - **Token security**: Tokens should be treated like session cookies. Transmit
only over HTTPS in production. If a token is compromised, the attacker has only over HTTPS in production. If a token is compromised, the attacker has
full access to the session until QUIT or expiry. full access to the session until QUIT or expiry.
@@ -1935,26 +1740,13 @@ The database schema is managed via embedded SQL migration files in
**Current tables:** **Current tables:**
#### `sessions` #### `users`
| Column | Type | Description |
|----------------|----------|-------------|
| `id` | INTEGER | Primary key (auto-increment) |
| `uuid` | TEXT | Unique session UUID |
| `nick` | TEXT | Unique nick |
| `password_hash`| TEXT | bcrypt hash (empty string for anonymous sessions) |
| `signing_key` | TEXT | Public signing key (empty string if unset) |
| `away_message` | TEXT | Away message (empty string if not away) |
| `created_at` | DATETIME | Session creation time |
| `last_seen` | DATETIME | Last API request time |
#### `clients`
| Column | Type | Description | | Column | Type | Description |
|-------------|----------|-------------| |-------------|----------|-------------|
| `id` | INTEGER | Primary key (auto-increment) | | `id` | INTEGER | Primary key (auto-increment) |
| `uuid` | TEXT | Unique client UUID | | `nick` | TEXT | Unique nick |
| `session_id`| INTEGER | FK → sessions.id (cascade delete) | | `token` | TEXT | Unique auth token (64 hex chars) |
| `token` | TEXT | Unique auth token (SHA-256 hash of 64 hex chars) | | `created_at`| DATETIME | Session creation time |
| `created_at`| DATETIME | Client creation time |
| `last_seen` | DATETIME | Last API request time | | `last_seen` | DATETIME | Last API request time |
#### `channels` #### `channels`
@@ -2011,19 +1803,10 @@ skew issues) and simpler than UUIDs (integer comparison vs. string comparison).
- **Client output queue entries**: Pruned automatically when older than - **Client output queue entries**: Pruned automatically when older than
`QUEUE_MAX_AGE` (default 30 days). `QUEUE_MAX_AGE` (default 30 days).
- **Channels**: Deleted when the last member leaves (ephemeral). - **Channels**: Deleted when the last member leaves (ephemeral).
- **Sessions**: Both anonymous and registered sessions are deleted on `QUIT` - **Users/sessions**: Deleted on `QUIT` or `POST /api/v1/logout`. Idle
or when the last client logs out (`POST /api/v1/logout` with no remaining sessions are automatically expired after `SESSION_IDLE_TIMEOUT` (default
clients triggers session cleanup). There is no distinction between session 30 days) — the server runs a background cleanup loop that parts idle users
types in the cleanup path — `handleQuit` and `cleanupUser` both call from all channels, broadcasts QUIT, and releases their nicks.
`DeleteSession` unconditionally. Idle sessions are automatically expired
after `SESSION_IDLE_TIMEOUT`
(default 30 days) — the server runs a background cleanup loop that parts
idle users from all channels, broadcasts QUIT, and releases their nicks.
- **Clients**: Individual client tokens are deleted on `POST /api/v1/logout`.
A session can have multiple clients; removing one doesn't affect others.
However, when the last client is removed (via logout), the entire session
is deleted — the user is parted from all channels, QUIT is broadcast, and
the nick is released.
--- ---
@@ -2051,8 +1834,6 @@ directory is also loaded automatically via
| `METRICS_USERNAME` | string | `""` | Basic auth username for `/metrics` endpoint. If empty, metrics endpoint is disabled. | | `METRICS_USERNAME` | string | `""` | Basic auth username for `/metrics` endpoint. If empty, metrics endpoint is disabled. |
| `METRICS_PASSWORD` | string | `""` | Basic auth password for `/metrics` endpoint | | `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. | | `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. |
| `LOGIN_RATE_LIMIT` | float | `1` | Allowed login attempts per second per IP address. |
| `LOGIN_RATE_BURST` | int | `5` | Maximum burst of login attempts per IP before rate limiting kicks in. |
| `MAINTENANCE_MODE` | bool | `false` | Maintenance mode flag (reserved) | | `MAINTENANCE_MODE` | bool | `false` | Maintenance mode flag (reserved) |
### Example `.env` file ### Example `.env` file
@@ -2174,21 +1955,11 @@ A complete client needs only four HTTP calls:
### Step-by-Step with curl ### Step-by-Step with curl
```bash ```bash
# 1a. Create an anonymous session (no account) # 1. Create a session
export TOKEN=$(curl -s -X POST http://localhost:8080/api/v1/session \ export TOKEN=$(curl -s -X POST http://localhost:8080/api/v1/session \
-H 'Content-Type: application/json' \ -H 'Content-Type: application/json' \
-d '{"nick":"testuser"}' | jq -r .token) -d '{"nick":"testuser"}' | jq -r .token)
# 1b. Or register an account (multi-client support)
export TOKEN=$(curl -s -X POST http://localhost:8080/api/v1/register \
-H 'Content-Type: application/json' \
-d '{"nick":"testuser","password":"mypassword"}' | jq -r .token)
# 1c. Or login to an existing account
export TOKEN=$(curl -s -X POST http://localhost:8080/api/v1/login \
-H 'Content-Type: application/json' \
-d '{"nick":"testuser","password":"mypassword"}' | jq -r .token)
# 2. Join a channel # 2. Join a channel
curl -s -X POST http://localhost:8080/api/v1/messages \ curl -s -X POST http://localhost:8080/api/v1/messages \
-H "Authorization: Bearer $TOKEN" \ -H "Authorization: Bearer $TOKEN" \
@@ -2321,11 +2092,9 @@ Clients should handle these message commands from the queue:
### Error Handling ### Error Handling
- **HTTP 401**: Token expired or invalid. Re-create session (anonymous) or - **HTTP 401**: Token expired or invalid. Re-create session.
re-login (registered account).
- **HTTP 404**: Channel or user not found. - **HTTP 404**: Channel or user not found.
- **HTTP 409**: Nick already taken (on session creation, registration, or - **HTTP 409**: Nick already taken (on session creation or NICK change).
NICK change).
- **HTTP 400**: Malformed request. Check the `error` field in the response. - **HTTP 400**: Malformed request. Check the `error` field in the response.
- **Network errors**: Back off exponentially (1s, 2s, 4s, ..., max 30s). - **Network errors**: Back off exponentially (1s, 2s, 4s, ..., max 30s).
@@ -2342,10 +2111,8 @@ Clients should handle these message commands from the queue:
4. **DM tab logic**: When you receive a PRIVMSG where `to` is not a channel 4. **DM tab logic**: When you receive a PRIVMSG where `to` is not a channel
(no `#` prefix), the DM tab should be keyed by the **other** user's nick: (no `#` prefix), the DM tab should be keyed by the **other** user's nick:
if `from` is you, use `to`; if `from` is someone else, use `from`. if `from` is you, use `to`; if `from` is someone else, use `from`.
5. **Reconnection**: If the poll loop fails with 401, the token is invalid. 5. **Reconnection**: If the poll loop fails with 401, the session is gone.
For anonymous sessions, create a new session. For registered accounts, Create a new session. If it fails with a network error, retry with backoff.
log in again via `POST /api/v1/login` to get a fresh token on the same
session. If it fails with a network error, retry with backoff.
--- ---
@@ -2457,49 +2224,6 @@ creating one session pays once and keeps their session.
- **Language-agnostic**: SHA-256 is available in every programming language. - **Language-agnostic**: SHA-256 is available in every programming language.
The proof computation is trivially implementable in any client. The proof computation is trivially implementable in any client.
### Login Rate Limiting
The login endpoint (`POST /api/v1/login`) has per-IP rate limiting to prevent
brute-force password attacks. This uses a token-bucket algorithm
(`golang.org/x/time/rate`) with configurable rate and burst.
| Environment Variable | Default | Description |
|---------------------|---------|-------------|
| `LOGIN_RATE_LIMIT` | `1` | Allowed login attempts per second per IP |
| `LOGIN_RATE_BURST` | `5` | Maximum burst of login attempts per IP |
When the limit is exceeded, the server returns **429 Too Many Requests** with a
`Retry-After: 1` header. Stale per-IP entries are automatically cleaned up
every 10 minutes.
> **⚠️ Security: Reverse Proxy Required for Production Use**
>
> The rate limiter extracts the client IP by checking the `X-Forwarded-For`
> header first, then `X-Real-IP`, and finally falling back to the TCP
> `RemoteAddr`. Both `X-Forwarded-For` and `X-Real-IP` are **client-controlled
> request headers** — any client can set them to arbitrary values.
>
> Without a properly configured reverse proxy in front of this server:
>
> - An attacker can **bypass rate limiting entirely** by rotating
> `X-Forwarded-For` values on each request (each value is treated as a
> distinct IP).
> - An attacker can **deny service to a specific user** by spoofing that user's
> IP in the `X-Forwarded-For` header, exhausting their rate limit bucket.
>
> **Recommendation:** Always deploy behind a reverse proxy (e.g. nginx, Caddy,
> Traefik) that strips or overwrites incoming `X-Forwarded-For` and `X-Real-IP`
> headers with the actual client IP. If running without a reverse proxy, be
> aware that the rate limiting provides no meaningful protection against a
> targeted attack.
**Why rate limits here but not on session creation?** Session creation is
protected by hashcash proof-of-work (stateless, no IP tracking needed). Login
involves bcrypt password verification against a registered account — a
fundamentally different threat model where an attacker targets a specific
account. Per-IP rate limiting is appropriate here because the cost of a wrong
guess is borne by the server (bcrypt), not the client.
--- ---
## Roadmap ## Roadmap
@@ -2608,8 +2332,6 @@ neoirc/
│ │ └── healthcheck.go # Health check handler │ │ └── healthcheck.go # Health check handler
│ ├── healthcheck/ # Health check logic │ ├── healthcheck/ # Health check logic
│ │ └── healthcheck.go │ │ └── healthcheck.go
│ ├── stats/ # Runtime statistics (atomic counters)
│ │ └── stats.go
│ ├── logger/ # slog-based logging │ ├── logger/ # slog-based logging
│ │ └── logger.go │ │ └── logger.go
│ ├── middleware/ # HTTP middleware (logging, CORS, metrics, auth) │ ├── middleware/ # HTTP middleware (logging, CORS, metrics, auth)
@@ -2661,13 +2383,9 @@ neoirc/
build a working IRC-style TUI client against this API in an afternoon, the build a working IRC-style TUI client against this API in an afternoon, the
API is too complex. API is too complex.
2. **Accounts optional** — anonymous sessions are instant: pick a nick and 2. **No accounts** — identity is a signing key, nick is a display name. No
talk. No registration, no email verification. The cost of entry is a registration, no passwords, no email verification. Session creation is
hashcash proof, not bureaucracy. For users who want multi-client access instant. The cost of entry is a hashcash proof, not bureaucracy.
(multiple devices sharing one session), optional account registration
with password is available — but never required. Identity
verification at the message layer uses cryptographic signing,
independent of account status.
3. **IRC semantics over HTTP** — command names and numeric codes from 3. **IRC semantics over HTTP** — command names and numeric codes from
RFC 1459/2812. If you've built an IRC client or bot, you already know the RFC 1459/2812. If you've built an IRC client or bot, you already know the

View File

@@ -10,7 +10,6 @@ import (
"git.eeqj.de/sneak/neoirc/internal/logger" "git.eeqj.de/sneak/neoirc/internal/logger"
"git.eeqj.de/sneak/neoirc/internal/middleware" "git.eeqj.de/sneak/neoirc/internal/middleware"
"git.eeqj.de/sneak/neoirc/internal/server" "git.eeqj.de/sneak/neoirc/internal/server"
"git.eeqj.de/sneak/neoirc/internal/stats"
"go.uber.org/fx" "go.uber.org/fx"
) )
@@ -36,7 +35,6 @@ func main() {
server.New, server.New,
middleware.New, middleware.New,
healthcheck.New, healthcheck.New,
stats.New,
), ),
fx.Invoke(func(*server.Server) {}), fx.Invoke(func(*server.Server) {}),
).Run() ).Run()

3
go.mod
View File

@@ -6,7 +6,7 @@ require (
github.com/99designs/basicauth-go v0.0.0-20230316000542-bf6f9cbbf0f8 github.com/99designs/basicauth-go v0.0.0-20230316000542-bf6f9cbbf0f8
github.com/gdamore/tcell/v2 v2.13.8 github.com/gdamore/tcell/v2 v2.13.8
github.com/getsentry/sentry-go v0.42.0 github.com/getsentry/sentry-go v0.42.0
github.com/go-chi/chi/v5 v5.2.1 github.com/go-chi/chi v1.5.5
github.com/go-chi/cors v1.2.2 github.com/go-chi/cors v1.2.2
github.com/google/uuid v1.6.0 github.com/google/uuid v1.6.0
github.com/joho/godotenv v1.5.1 github.com/joho/godotenv v1.5.1
@@ -16,7 +16,6 @@ require (
github.com/spf13/viper v1.21.0 github.com/spf13/viper v1.21.0
go.uber.org/fx v1.24.0 go.uber.org/fx v1.24.0
golang.org/x/crypto v0.48.0 golang.org/x/crypto v0.48.0
golang.org/x/time v0.6.0
modernc.org/sqlite v1.45.0 modernc.org/sqlite v1.45.0
) )

6
go.sum
View File

@@ -18,8 +18,8 @@ github.com/gdamore/tcell/v2 v2.13.8 h1:Mys/Kl5wfC/GcC5Cx4C2BIQH9dbnhnkPgS9/wF3Rl
github.com/gdamore/tcell/v2 v2.13.8/go.mod h1:+Wfe208WDdB7INEtCsNrAN6O2m+wsTPk1RAovjaILlo= github.com/gdamore/tcell/v2 v2.13.8/go.mod h1:+Wfe208WDdB7INEtCsNrAN6O2m+wsTPk1RAovjaILlo=
github.com/getsentry/sentry-go v0.42.0 h1:eeFMACuZTbUQf90RE8dE4tXeSe4CZyfvR1MBL7RLEt8= github.com/getsentry/sentry-go v0.42.0 h1:eeFMACuZTbUQf90RE8dE4tXeSe4CZyfvR1MBL7RLEt8=
github.com/getsentry/sentry-go v0.42.0/go.mod h1:eRXCoh3uvmjQLY6qu63BjUZnaBu5L5WhMV1RwYO8W5s= github.com/getsentry/sentry-go v0.42.0/go.mod h1:eRXCoh3uvmjQLY6qu63BjUZnaBu5L5WhMV1RwYO8W5s=
github.com/go-chi/chi/v5 v5.2.1 h1:KOIHODQj58PmL80G2Eak4WdvUzjSJSm0vG72crDCqb8= github.com/go-chi/chi v1.5.5 h1:vOB/HbEMt9QqBqErz07QehcOKHaWFtuj87tTDVz2qXE=
github.com/go-chi/chi/v5 v5.2.1/go.mod h1:L2yAIGWB3H+phAw1NxKwWM+7eUH/lU8pOMm5hHcoops= github.com/go-chi/chi v1.5.5/go.mod h1:C9JqLr3tIYjDOZpzn+BCuxY8z8vmca43EeMgyZt7irw=
github.com/go-chi/cors v1.2.2 h1:Jmey33TE+b+rB7fT8MUy1u0I4L+NARQlK6LhzKPSyQE= github.com/go-chi/cors v1.2.2 h1:Jmey33TE+b+rB7fT8MUy1u0I4L+NARQlK6LhzKPSyQE=
github.com/go-chi/cors v1.2.2/go.mod h1:sSbTewc+6wYHBBCW7ytsFSn836hqM7JxpglAy2Vzc58= github.com/go-chi/cors v1.2.2/go.mod h1:sSbTewc+6wYHBBCW7ytsFSn836hqM7JxpglAy2Vzc58=
github.com/go-errors/errors v1.4.2 h1:J6MZopCL4uSllY1OfXM374weqZFFItUbrImctkmUxIA= github.com/go-errors/errors v1.4.2 h1:J6MZopCL4uSllY1OfXM374weqZFFItUbrImctkmUxIA=
@@ -151,8 +151,6 @@ golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk= golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk=
golang.org/x/text v0.34.0/go.mod h1:homfLqTYRFyVYemLBFl5GgL/DWEiH5wcsQ5gSh1yziA= golang.org/x/text v0.34.0/go.mod h1:homfLqTYRFyVYemLBFl5GgL/DWEiH5wcsQ5gSh1yziA=
golang.org/x/time v0.6.0 h1:eTDhh4ZXt5Qf0augr54TN6suAUudPcawVZeIAPU7D4U=
golang.org/x/time v0.6.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=

View File

@@ -46,8 +46,6 @@ type Config struct {
FederationKey string FederationKey string
SessionIdleTimeout string SessionIdleTimeout string
HashcashBits int HashcashBits int
LoginRateLimit float64
LoginRateBurst int
params *Params params *Params
log *slog.Logger log *slog.Logger
} }
@@ -80,8 +78,6 @@ func New(
viper.SetDefault("FEDERATION_KEY", "") viper.SetDefault("FEDERATION_KEY", "")
viper.SetDefault("SESSION_IDLE_TIMEOUT", "720h") viper.SetDefault("SESSION_IDLE_TIMEOUT", "720h")
viper.SetDefault("NEOIRC_HASHCASH_BITS", "20") viper.SetDefault("NEOIRC_HASHCASH_BITS", "20")
viper.SetDefault("LOGIN_RATE_LIMIT", "1")
viper.SetDefault("LOGIN_RATE_BURST", "5")
err := viper.ReadInConfig() err := viper.ReadInConfig()
if err != nil { if err != nil {
@@ -108,8 +104,6 @@ func New(
FederationKey: viper.GetString("FEDERATION_KEY"), FederationKey: viper.GetString("FEDERATION_KEY"),
SessionIdleTimeout: viper.GetString("SESSION_IDLE_TIMEOUT"), SessionIdleTimeout: viper.GetString("SESSION_IDLE_TIMEOUT"),
HashcashBits: viper.GetInt("NEOIRC_HASHCASH_BITS"), HashcashBits: viper.GetInt("NEOIRC_HASHCASH_BITS"),
LoginRateLimit: viper.GetFloat64("LOGIN_RATE_LIMIT"),
LoginRateBurst: viper.GetInt("LOGIN_RATE_BURST"),
log: log, log: log,
params: &params, params: &params,
} }

View File

@@ -1110,121 +1110,6 @@ func (database *Database) GetSessionCreatedAt(
return createdAt, nil return createdAt, nil
} }
// SetAway sets the away message for a session.
// An empty message clears the away status.
func (database *Database) SetAway(
ctx context.Context,
sessionID int64,
message string,
) error {
_, err := database.conn.ExecContext(ctx,
"UPDATE sessions SET away_message = ? WHERE id = ?",
message, sessionID)
if err != nil {
return fmt.Errorf("set away: %w", err)
}
return nil
}
// GetAway returns the away message for a session.
// Returns an empty string if the user is not away.
func (database *Database) GetAway(
ctx context.Context,
sessionID int64,
) (string, error) {
var msg string
err := database.conn.QueryRowContext(ctx,
"SELECT away_message FROM sessions WHERE id = ?",
sessionID,
).Scan(&msg)
if err != nil {
return "", fmt.Errorf("get away: %w", err)
}
return msg, nil
}
// SetTopicMeta sets the topic along with who set it and
// when.
func (database *Database) SetTopicMeta(
ctx context.Context,
channelName, topic, setBy string,
) error {
now := time.Now()
_, err := database.conn.ExecContext(ctx,
`UPDATE channels
SET topic = ?, topic_set_by = ?,
topic_set_at = ?, updated_at = ?
WHERE name = ?`,
topic, setBy, now, now, channelName)
if err != nil {
return fmt.Errorf("set topic meta: %w", err)
}
return nil
}
// TopicMeta holds topic metadata for a channel.
type TopicMeta struct {
SetBy string
SetAt time.Time
}
// GetTopicMeta returns who set the topic and when.
func (database *Database) GetTopicMeta(
ctx context.Context,
channelID int64,
) (*TopicMeta, error) {
var (
setBy string
setAt sql.NullTime
)
err := database.conn.QueryRowContext(ctx,
`SELECT topic_set_by, topic_set_at
FROM channels WHERE id = ?`,
channelID,
).Scan(&setBy, &setAt)
if err != nil {
return nil, fmt.Errorf(
"get topic meta: %w", err,
)
}
if setBy == "" || !setAt.Valid {
return nil, nil //nolint:nilnil
}
return &TopicMeta{
SetBy: setBy,
SetAt: setAt.Time,
}, nil
}
// GetSessionLastSeen returns the last_seen time for a
// session.
func (database *Database) GetSessionLastSeen(
ctx context.Context,
sessionID int64,
) (time.Time, error) {
var lastSeen time.Time
err := database.conn.QueryRowContext(ctx,
"SELECT last_seen FROM sessions WHERE id = ?",
sessionID,
).Scan(&lastSeen)
if err != nil {
return time.Time{}, fmt.Errorf(
"get session last_seen: %w", err,
)
}
return lastSeen, nil
}
// PruneOldQueueEntries deletes client output queue entries // PruneOldQueueEntries deletes client output queue entries
// older than cutoff and returns the number of rows removed. // older than cutoff and returns the number of rows removed.
func (database *Database) PruneOldQueueEntries( func (database *Database) PruneOldQueueEntries(
@@ -1266,42 +1151,3 @@ func (database *Database) PruneOldMessages(
return deleted, nil return deleted, nil
} }
// GetClientCount returns the total number of clients.
func (database *Database) GetClientCount(
ctx context.Context,
) (int64, error) {
var count int64
err := database.conn.QueryRowContext(
ctx,
"SELECT COUNT(*) FROM clients",
).Scan(&count)
if err != nil {
return 0, fmt.Errorf(
"get client count: %w", err,
)
}
return count, nil
}
// GetQueueEntryCount returns the total number of entries
// in the client output queues.
func (database *Database) GetQueueEntryCount(
ctx context.Context,
) (int64, error) {
var count int64
err := database.conn.QueryRowContext(
ctx,
"SELECT COUNT(*) FROM client_queues",
).Scan(&count)
if err != nil {
return 0, fmt.Errorf(
"get queue entry count: %w", err,
)
}
return count, nil
}

View File

@@ -8,7 +8,6 @@ CREATE TABLE IF NOT EXISTS sessions (
nick TEXT NOT NULL UNIQUE, nick TEXT NOT NULL UNIQUE,
password_hash TEXT NOT NULL DEFAULT '', password_hash TEXT NOT NULL DEFAULT '',
signing_key TEXT NOT NULL DEFAULT '', signing_key TEXT NOT NULL DEFAULT '',
away_message TEXT NOT NULL DEFAULT '',
created_at DATETIME DEFAULT CURRENT_TIMESTAMP, created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
last_seen DATETIME DEFAULT CURRENT_TIMESTAMP last_seen DATETIME DEFAULT CURRENT_TIMESTAMP
); );
@@ -31,8 +30,6 @@ CREATE TABLE IF NOT EXISTS channels (
id INTEGER PRIMARY KEY AUTOINCREMENT, id INTEGER PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL UNIQUE, name TEXT NOT NULL UNIQUE,
topic TEXT NOT NULL DEFAULT '', topic TEXT NOT NULL DEFAULT '',
topic_set_by TEXT NOT NULL DEFAULT '',
topic_set_at DATETIME,
created_at DATETIME DEFAULT CURRENT_TIMESTAMP, created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
updated_at DATETIME DEFAULT CURRENT_TIMESTAMP updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
); );

View File

@@ -12,7 +12,7 @@ import (
"git.eeqj.de/sneak/neoirc/internal/db" "git.eeqj.de/sneak/neoirc/internal/db"
"git.eeqj.de/sneak/neoirc/pkg/irc" "git.eeqj.de/sneak/neoirc/pkg/irc"
"github.com/go-chi/chi/v5" "github.com/go-chi/chi"
) )
var validNickRe = regexp.MustCompile( var validNickRe = regexp.MustCompile(
@@ -71,10 +71,11 @@ func (hdlr *Handlers) requireAuth(
sessionID, clientID, nick, err := sessionID, clientID, nick, err :=
hdlr.authSession(request) hdlr.authSession(request)
if err != nil { if err != nil {
hdlr.respondJSON(writer, request, map[string]any{ hdlr.respondError(
"error": "not registered", writer, request,
"numeric": irc.ErrNotRegistered, "unauthorized",
}, http.StatusUnauthorized) http.StatusUnauthorized,
)
return 0, 0, "", false return 0, 0, "", false
} }
@@ -212,9 +213,6 @@ func (hdlr *Handlers) handleCreateSession(
return return
} }
hdlr.stats.IncrSessions()
hdlr.stats.IncrConnections()
hdlr.deliverMOTD(request, clientID, sessionID, payload.Nick) hdlr.deliverMOTD(request, clientID, sessionID, payload.Nick)
hdlr.respondJSON(writer, request, map[string]any{ hdlr.respondJSON(writer, request, map[string]any{
@@ -839,11 +837,6 @@ func (hdlr *Handlers) dispatchCommand(
bodyLines func() []string, bodyLines func() []string,
) { ) {
switch command { switch command {
case irc.CmdAway:
hdlr.handleAway(
writer, request,
sessionID, clientID, nick, bodyLines,
)
case irc.CmdPrivmsg, irc.CmdNotice: case irc.CmdPrivmsg, irc.CmdNotice:
hdlr.handlePrivmsg( hdlr.handlePrivmsg(
writer, request, writer, request,
@@ -954,8 +947,8 @@ func (hdlr *Handlers) handlePrivmsg(
if target == "" { if target == "" {
hdlr.enqueueNumeric( hdlr.enqueueNumeric(
request.Context(), clientID, request.Context(), clientID,
irc.ErrNoRecipient, nick, []string{command}, irc.ErrNeedMoreParams, nick, []string{command},
"No recipient given", "Not enough parameters",
) )
hdlr.broker.Notify(sessionID) hdlr.broker.Notify(sessionID)
hdlr.respondJSON(writer, request, hdlr.respondJSON(writer, request,
@@ -969,8 +962,8 @@ func (hdlr *Handlers) handlePrivmsg(
if len(lines) == 0 { if len(lines) == 0 {
hdlr.enqueueNumeric( hdlr.enqueueNumeric(
request.Context(), clientID, request.Context(), clientID,
irc.ErrNoTextToSend, nick, []string{command}, irc.ErrNeedMoreParams, nick, []string{command},
"No text to send", "Not enough parameters",
) )
hdlr.broker.Notify(sessionID) hdlr.broker.Notify(sessionID)
hdlr.respondJSON(writer, request, hdlr.respondJSON(writer, request,
@@ -980,8 +973,6 @@ func (hdlr *Handlers) handlePrivmsg(
return return
} }
hdlr.stats.IncrMessages()
if strings.HasPrefix(target, "#") { if strings.HasPrefix(target, "#") {
hdlr.handleChannelMsg( hdlr.handleChannelMsg(
writer, request, writer, request,
@@ -1059,8 +1050,8 @@ func (hdlr *Handlers) handleChannelMsg(
if !isMember { if !isMember {
hdlr.respondIRCError( hdlr.respondIRCError(
writer, request, clientID, sessionID, writer, request, clientID, sessionID,
irc.ErrCannotSendToChan, nick, []string{target}, irc.ErrNotOnChannel, nick, []string{target},
"Cannot send to channel", "You're not on that channel",
) )
return return
@@ -1156,19 +1147,6 @@ func (hdlr *Handlers) handleDirectMsg(
return return
} }
// If the target is away, send RPL_AWAY to the sender.
awayMsg, awayErr := hdlr.params.Database.GetAway(
request.Context(), targetSID,
)
if awayErr == nil && awayMsg != "" {
hdlr.enqueueNumeric(
request.Context(), clientID,
irc.RplAway, nick,
[]string{target}, awayMsg,
)
hdlr.broker.Notify(sessionID)
}
hdlr.respondJSON(writer, request, hdlr.respondJSON(writer, request,
map[string]string{"id": msgUUID, "status": "sent"}, map[string]string{"id": msgUUID, "status": "sent"},
http.StatusOK) http.StatusOK)
@@ -1279,25 +1257,14 @@ func (hdlr *Handlers) deliverJoinNumerics(
) { ) {
ctx := request.Context() ctx := request.Context()
hdlr.deliverTopicNumerics( chInfo, err := hdlr.params.Database.GetChannelByName(
ctx, clientID, sessionID, nick, channel, chID, ctx, channel,
) )
if err == nil {
hdlr.deliverNamesNumerics( _ = chInfo // chInfo is the ID; topic comes from DB.
ctx, clientID, nick, channel, chID,
)
hdlr.broker.Notify(sessionID)
} }
// deliverTopicNumerics sends RPL_TOPIC or RPL_NOTOPIC, // Get topic from channel info.
// plus RPL_TOPICWHOTIME when topic metadata is available.
func (hdlr *Handlers) deliverTopicNumerics(
ctx context.Context,
clientID, sessionID int64,
nick, channel string,
chID int64,
) {
channels, listErr := hdlr.params.Database.ListChannels( channels, listErr := hdlr.params.Database.ListChannels(
ctx, sessionID, ctx, sessionID,
) )
@@ -1319,39 +1286,14 @@ func (hdlr *Handlers) deliverTopicNumerics(
ctx, clientID, irc.RplTopic, nick, ctx, clientID, irc.RplTopic, nick,
[]string{channel}, topic, []string{channel}, topic,
) )
topicMeta, tmErr := hdlr.params.Database.
GetTopicMeta(ctx, chID)
if tmErr == nil && topicMeta != nil {
hdlr.enqueueNumeric(
ctx, clientID,
irc.RplTopicWhoTime, nick,
[]string{
channel,
topicMeta.SetBy,
strconv.FormatInt(
topicMeta.SetAt.Unix(), 10,
),
},
"",
)
}
} else { } else {
hdlr.enqueueNumeric( hdlr.enqueueNumeric(
ctx, clientID, irc.RplNoTopic, nick, ctx, clientID, irc.RplNoTopic, nick,
[]string{channel}, "No topic is set", []string{channel}, "No topic is set",
) )
} }
}
// deliverNamesNumerics sends RPL_NAMREPLY and // Get member list for NAMES reply.
// RPL_ENDOFNAMES for a channel.
func (hdlr *Handlers) deliverNamesNumerics(
ctx context.Context,
clientID int64,
nick, channel string,
chID int64,
) {
members, memErr := hdlr.params.Database.ChannelMembers( members, memErr := hdlr.params.Database.ChannelMembers(
ctx, chID, ctx, chID,
) )
@@ -1374,6 +1316,8 @@ func (hdlr *Handlers) deliverNamesNumerics(
ctx, clientID, irc.RplEndOfNames, nick, ctx, clientID, irc.RplEndOfNames, nick,
[]string{channel}, "End of /NAMES list", []string{channel}, "End of /NAMES list",
) )
hdlr.broker.Notify(sessionID)
} }
func (hdlr *Handlers) handlePart( func (hdlr *Handlers) handlePart(
@@ -1641,32 +1585,6 @@ func (hdlr *Handlers) handleTopic(
return return
} }
isMember, err := hdlr.params.Database.IsChannelMember(
request.Context(), chID, sessionID,
)
if err != nil {
hdlr.log.Error(
"check membership failed", "error", err,
)
hdlr.respondError(
writer, request,
"internal error",
http.StatusInternalServerError,
)
return
}
if !isMember {
hdlr.respondIRCError(
writer, request, clientID, sessionID,
irc.ErrNotOnChannel, nick, []string{channel},
"You're not on that channel",
)
return
}
hdlr.executeTopic( hdlr.executeTopic(
writer, request, writer, request,
sessionID, clientID, nick, sessionID, clientID, nick,
@@ -1683,8 +1601,8 @@ func (hdlr *Handlers) executeTopic(
body json.RawMessage, body json.RawMessage,
chID int64, chID int64,
) { ) {
setErr := hdlr.params.Database.SetTopicMeta( setErr := hdlr.params.Database.SetTopic(
request.Context(), channel, topic, nick, request.Context(), channel, topic,
) )
if setErr != nil { if setErr != nil {
hdlr.log.Error( hdlr.log.Error(
@@ -1711,25 +1629,6 @@ func (hdlr *Handlers) executeTopic(
request.Context(), clientID, request.Context(), clientID,
irc.RplTopic, nick, []string{channel}, topic, irc.RplTopic, nick, []string{channel}, topic,
) )
// 333 RPL_TOPICWHOTIME
topicMeta, tmErr := hdlr.params.Database.
GetTopicMeta(request.Context(), chID)
if tmErr == nil && topicMeta != nil {
hdlr.enqueueNumeric(
request.Context(), clientID,
irc.RplTopicWhoTime, nick,
[]string{
channel,
topicMeta.SetBy,
strconv.FormatInt(
topicMeta.SetAt.Unix(), 10,
),
},
"",
)
}
hdlr.broker.Notify(sessionID) hdlr.broker.Notify(sessionID)
hdlr.respondJSON(writer, request, hdlr.respondJSON(writer, request,
@@ -2119,11 +2018,6 @@ func (hdlr *Handlers) executeWhois(
"neoirc server", "neoirc server",
) )
// 317 RPL_WHOISIDLE
hdlr.deliverWhoisIdle(
ctx, clientID, nick, queryNick, targetSID,
)
// 319 RPL_WHOISCHANNELS // 319 RPL_WHOISCHANNELS
hdlr.deliverWhoisChannels( hdlr.deliverWhoisChannels(
ctx, clientID, nick, queryNick, targetSID, ctx, clientID, nick, queryNick, targetSID,
@@ -2541,95 +2435,3 @@ func (hdlr *Handlers) HandleServerInfo() http.HandlerFunc {
) )
} }
} }
// handleAway handles the AWAY command. An empty body
// clears the away status; a non-empty body sets it.
func (hdlr *Handlers) handleAway(
writer http.ResponseWriter,
request *http.Request,
sessionID, clientID int64,
nick string,
bodyLines func() []string,
) {
ctx := request.Context()
lines := bodyLines()
awayMsg := ""
if len(lines) > 0 {
awayMsg = strings.Join(lines, " ")
}
err := hdlr.params.Database.SetAway(
ctx, sessionID, awayMsg,
)
if err != nil {
hdlr.log.Error("set away failed", "error", err)
hdlr.respondError(
writer, request,
"internal error",
http.StatusInternalServerError,
)
return
}
if awayMsg == "" {
// 305 RPL_UNAWAY
hdlr.enqueueNumeric(
ctx, clientID, irc.RplUnaway, nick, nil,
"You are no longer marked as being away",
)
} else {
// 306 RPL_NOWAWAY
hdlr.enqueueNumeric(
ctx, clientID, irc.RplNowAway, nick, nil,
"You have been marked as being away",
)
}
hdlr.broker.Notify(sessionID)
hdlr.respondJSON(writer, request,
map[string]string{"status": "ok"},
http.StatusOK)
}
// deliverWhoisIdle sends RPL_WHOISIDLE (317) with idle
// time and signon time.
func (hdlr *Handlers) deliverWhoisIdle(
ctx context.Context,
clientID int64,
nick, queryNick string,
targetSID int64,
) {
lastSeen, lsErr := hdlr.params.Database.
GetSessionLastSeen(ctx, targetSID)
if lsErr != nil {
return
}
createdAt, caErr := hdlr.params.Database.
GetSessionCreatedAt(ctx, targetSID)
if caErr != nil {
return
}
idleSeconds := int64(time.Since(lastSeen).Seconds())
if idleSeconds < 0 {
idleSeconds = 0
}
signonUnix := strconv.FormatInt(
createdAt.Unix(), 10,
)
hdlr.enqueueNumeric(
ctx, clientID, irc.RplWhoisIdle, nick,
[]string{
queryNick,
strconv.FormatInt(idleSeconds, 10),
signonUnix,
},
"seconds idle, signon time",
)
}

View File

@@ -26,7 +26,6 @@ import (
"git.eeqj.de/sneak/neoirc/internal/logger" "git.eeqj.de/sneak/neoirc/internal/logger"
"git.eeqj.de/sneak/neoirc/internal/middleware" "git.eeqj.de/sneak/neoirc/internal/middleware"
"git.eeqj.de/sneak/neoirc/internal/server" "git.eeqj.de/sneak/neoirc/internal/server"
"git.eeqj.de/sneak/neoirc/internal/stats"
"go.uber.org/fx" "go.uber.org/fx"
"go.uber.org/fx/fxtest" "go.uber.org/fx/fxtest"
) )
@@ -91,7 +90,6 @@ func newTestServer(
return cfg, nil return cfg, nil
}, },
newTestDB, newTestDB,
stats.New,
newTestHealthcheck, newTestHealthcheck,
newTestMiddleware, newTestMiddleware,
newTestHandlers, newTestHandlers,
@@ -146,14 +144,12 @@ func newTestHealthcheck(
cfg *config.Config, cfg *config.Config,
log *logger.Logger, log *logger.Logger,
database *db.Database, database *db.Database,
tracker *stats.Tracker,
) (*healthcheck.Healthcheck, error) { ) (*healthcheck.Healthcheck, error) {
hcheck, err := healthcheck.New(lifecycle, healthcheck.Params{ //nolint:exhaustruct hcheck, err := healthcheck.New(lifecycle, healthcheck.Params{ //nolint:exhaustruct
Globals: globs, Globals: globs,
Config: cfg, Config: cfg,
Logger: log, Logger: log,
Database: database, Database: database,
Stats: tracker,
}) })
if err != nil { if err != nil {
return nil, fmt.Errorf("test healthcheck: %w", err) return nil, fmt.Errorf("test healthcheck: %w", err)
@@ -187,7 +183,6 @@ func newTestHandlers(
cfg *config.Config, cfg *config.Config,
database *db.Database, database *db.Database,
hcheck *healthcheck.Healthcheck, hcheck *healthcheck.Healthcheck,
tracker *stats.Tracker,
) (*handlers.Handlers, error) { ) (*handlers.Handlers, error) {
hdlr, err := handlers.New(lifecycle, handlers.Params{ //nolint:exhaustruct hdlr, err := handlers.New(lifecycle, handlers.Params{ //nolint:exhaustruct
Logger: log, Logger: log,
@@ -195,7 +190,6 @@ func newTestHandlers(
Config: cfg, Config: cfg,
Database: database, Database: database,
Healthcheck: hcheck, Healthcheck: hcheck,
Stats: tracker,
}) })
if err != nil { if err != nil {
return nil, fmt.Errorf("test handlers: %w", err) return nil, fmt.Errorf("test handlers: %w", err)
@@ -817,9 +811,9 @@ func TestMessageMissingBody(t *testing.T) {
msgs, _ := tserver.pollMessages(token, lastID) msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "412") { if !findNumeric(msgs, "461") {
t.Fatalf( t.Fatalf(
"expected ERR_NOTEXTTOSEND (412), got %v", "expected ERR_NEEDMOREPARAMS (461), got %v",
msgs, msgs,
) )
} }
@@ -841,9 +835,9 @@ func TestMessageMissingTo(t *testing.T) {
msgs, _ := tserver.pollMessages(token, lastID) msgs, _ := tserver.pollMessages(token, lastID)
if !findNumeric(msgs, "411") { if !findNumeric(msgs, "461") {
t.Fatalf( t.Fatalf(
"expected ERR_NORECIPIENT (411), got %v", "expected ERR_NEEDMOREPARAMS (461), got %v",
msgs, msgs,
) )
} }
@@ -876,9 +870,9 @@ func TestNonMemberCannotSend(t *testing.T) {
msgs, _ := tserver.pollMessages(aliceToken, lastID) msgs, _ := tserver.pollMessages(aliceToken, lastID)
if !findNumeric(msgs, "404") { if !findNumeric(msgs, "442") {
t.Fatalf( t.Fatalf(
"expected ERR_CANNOTSENDTOCHAN (404), got %v", "expected ERR_NOTONCHANNEL (442), got %v",
msgs, msgs,
) )
} }
@@ -1140,42 +1134,6 @@ func TestTopicMissingBody(t *testing.T) {
} }
} }
func TestTopicNonMember(t *testing.T) {
tserver := newTestServer(t)
aliceToken := tserver.createSession("alice_topic")
bobToken := tserver.createSession("bob_topic")
// Only alice joins the channel.
tserver.sendCommand(aliceToken, map[string]any{
commandKey: joinCmd, toKey: "#topicpriv",
})
// Drain bob's initial messages.
_, lastID := tserver.pollMessages(bobToken, 0)
// Bob tries to set topic without joining.
status, _ := tserver.sendCommand(
bobToken,
map[string]any{
commandKey: "TOPIC",
toKey: "#topicpriv",
bodyKey: []string{"Hijacked topic"},
},
)
if status != http.StatusOK {
t.Fatalf("expected 200, got %d", status)
}
msgs, _ := tserver.pollMessages(bobToken, lastID)
if !findNumeric(msgs, "442") {
t.Fatalf(
"expected ERR_NOTONCHANNEL (442), got %v",
msgs,
)
}
}
func TestPing(t *testing.T) { func TestPing(t *testing.T) {
tserver := newTestServer(t) tserver := newTestServer(t)
token := tserver.createSession("ping_user") token := tserver.createSession("ping_user")
@@ -1699,133 +1657,6 @@ func TestHealthcheck(t *testing.T) {
} }
} }
func TestHealthcheckRuntimeStatsFields(t *testing.T) {
tserver := newTestServer(t)
resp, err := doRequest(
t,
http.MethodGet,
tserver.url("/.well-known/healthcheck.json"),
nil,
)
if err != nil {
t.Fatal(err)
}
defer func() { _ = resp.Body.Close() }()
if resp.StatusCode != http.StatusOK {
t.Fatalf(
"expected 200, got %d", resp.StatusCode,
)
}
var result map[string]any
decErr := json.NewDecoder(resp.Body).Decode(&result)
if decErr != nil {
t.Fatalf("decode healthcheck: %v", decErr)
}
requiredFields := []string{
"sessions", "clients", "queuedLines",
"channels", "connectionsSinceBoot",
"sessionsSinceBoot", "messagesSinceBoot",
}
for _, field := range requiredFields {
if _, ok := result[field]; !ok {
t.Errorf(
"missing field %q in healthcheck", field,
)
}
}
}
func TestHealthcheckRuntimeStatsValues(t *testing.T) {
tserver := newTestServer(t)
token := tserver.createSession("statsuser")
tserver.sendCommand(token, map[string]any{
commandKey: joinCmd, toKey: "#statschan",
})
tserver.sendCommand(token, map[string]any{
commandKey: privmsgCmd,
toKey: "#statschan",
bodyKey: []string{"hello stats"},
})
result := tserver.fetchHealthcheck(t)
assertFieldGTE(t, result, "sessions", 1)
assertFieldGTE(t, result, "clients", 1)
assertFieldGTE(t, result, "channels", 1)
assertFieldGTE(t, result, "queuedLines", 0)
assertFieldGTE(t, result, "sessionsSinceBoot", 1)
assertFieldGTE(t, result, "connectionsSinceBoot", 1)
assertFieldGTE(t, result, "messagesSinceBoot", 1)
}
func (tserver *testServer) fetchHealthcheck(
t *testing.T,
) map[string]any {
t.Helper()
resp, err := doRequest(
t,
http.MethodGet,
tserver.url("/.well-known/healthcheck.json"),
nil,
)
if err != nil {
t.Fatal(err)
}
defer func() { _ = resp.Body.Close() }()
if resp.StatusCode != http.StatusOK {
t.Fatalf(
"expected 200, got %d", resp.StatusCode,
)
}
var result map[string]any
decErr := json.NewDecoder(resp.Body).Decode(&result)
if decErr != nil {
t.Fatalf("decode healthcheck: %v", decErr)
}
return result
}
func assertFieldGTE(
t *testing.T,
result map[string]any,
field string,
minimum float64,
) {
t.Helper()
val, ok := result[field].(float64)
if !ok {
t.Errorf(
"field %q: not a number (got %T)",
field, result[field],
)
return
}
if val < minimum {
t.Errorf(
"expected %s >= %v, got %v",
field, minimum, val,
)
}
}
func TestRegisterValid(t *testing.T) { func TestRegisterValid(t *testing.T) {
tserver := newTestServer(t) tserver := newTestServer(t)
@@ -2130,121 +1961,6 @@ func TestSessionStillWorks(t *testing.T) {
} }
} }
func TestLoginRateLimitExceeded(t *testing.T) {
tserver := newTestServer(t)
// Exhaust the burst (default: 5 per IP) using
// nonexistent users. These fail fast (no bcrypt),
// preventing token replenishment between requests.
for range 5 {
loginBody, mErr := json.Marshal(
map[string]string{
"nick": "nosuchuser",
"password": "doesnotmatter",
},
)
if mErr != nil {
t.Fatal(mErr)
}
loginResp, rErr := doRequest(
t,
http.MethodPost,
tserver.url("/api/v1/login"),
bytes.NewReader(loginBody),
)
if rErr != nil {
t.Fatal(rErr)
}
_ = loginResp.Body.Close()
}
// The next request should be rate-limited.
loginBody, err := json.Marshal(map[string]string{
"nick": "nosuchuser", "password": "doesnotmatter",
})
if err != nil {
t.Fatal(err)
}
resp, err := doRequest(
t,
http.MethodPost,
tserver.url("/api/v1/login"),
bytes.NewReader(loginBody),
)
if err != nil {
t.Fatal(err)
}
defer func() { _ = resp.Body.Close() }()
if resp.StatusCode != http.StatusTooManyRequests {
t.Fatalf(
"expected 429, got %d",
resp.StatusCode,
)
}
retryAfter := resp.Header.Get("Retry-After")
if retryAfter == "" {
t.Fatal("expected Retry-After header")
}
}
func TestLoginRateLimitAllowsNormalUse(t *testing.T) {
tserver := newTestServer(t)
// Register a user.
regBody, err := json.Marshal(map[string]string{
"nick": "normaluser", "password": "password123",
})
if err != nil {
t.Fatal(err)
}
resp, err := doRequest(
t,
http.MethodPost,
tserver.url("/api/v1/register"),
bytes.NewReader(regBody),
)
if err != nil {
t.Fatal(err)
}
_ = resp.Body.Close()
// A single login should succeed without rate limiting.
loginBody, err := json.Marshal(map[string]string{
"nick": "normaluser", "password": "password123",
})
if err != nil {
t.Fatal(err)
}
resp2, err := doRequest(
t,
http.MethodPost,
tserver.url("/api/v1/login"),
bytes.NewReader(loginBody),
)
if err != nil {
t.Fatal(err)
}
defer func() { _ = resp2.Body.Close() }()
if resp2.StatusCode != http.StatusOK {
respBody, _ := io.ReadAll(resp2.Body)
t.Fatalf(
"expected 200, got %d: %s",
resp2.StatusCode, respBody,
)
}
}
func TestNickBroadcastToChannels(t *testing.T) { func TestNickBroadcastToChannels(t *testing.T) {
tserver := newTestServer(t) tserver := newTestServer(t)
aliceToken := tserver.createSession("nick_a") aliceToken := tserver.createSession("nick_a")

View File

@@ -2,7 +2,6 @@ package handlers
import ( import (
"encoding/json" "encoding/json"
"net"
"net/http" "net/http"
"strings" "strings"
@@ -11,33 +10,6 @@ import (
const minPasswordLength = 8 const minPasswordLength = 8
// clientIP extracts the client IP address from the request.
// It checks X-Forwarded-For and X-Real-IP headers before
// falling back to RemoteAddr.
func clientIP(request *http.Request) string {
if forwarded := request.Header.Get("X-Forwarded-For"); forwarded != "" {
// X-Forwarded-For may contain a comma-separated list;
// the first entry is the original client.
parts := strings.SplitN(forwarded, ",", 2) //nolint:mnd // split into two parts
ip := strings.TrimSpace(parts[0])
if ip != "" {
return ip
}
}
if realIP := request.Header.Get("X-Real-IP"); realIP != "" {
return strings.TrimSpace(realIP)
}
host, _, err := net.SplitHostPort(request.RemoteAddr)
if err != nil {
return request.RemoteAddr
}
return host
}
// HandleRegister creates a new user with a password. // HandleRegister creates a new user with a password.
func (hdlr *Handlers) HandleRegister() http.HandlerFunc { func (hdlr *Handlers) HandleRegister() http.HandlerFunc {
return func( return func(
@@ -110,9 +82,6 @@ func (hdlr *Handlers) handleRegister(
return return
} }
hdlr.stats.IncrSessions()
hdlr.stats.IncrConnections()
hdlr.deliverMOTD(request, clientID, sessionID, payload.Nick) hdlr.deliverMOTD(request, clientID, sessionID, payload.Nick)
hdlr.respondJSON(writer, request, map[string]any{ hdlr.respondJSON(writer, request, map[string]any{
@@ -165,21 +134,6 @@ func (hdlr *Handlers) handleLogin(
writer http.ResponseWriter, writer http.ResponseWriter,
request *http.Request, request *http.Request,
) { ) {
ip := clientIP(request)
if !hdlr.loginLimiter.Allow(ip) {
writer.Header().Set(
"Retry-After", "1",
)
hdlr.respondError(
writer, request,
"too many login attempts, try again later",
http.StatusTooManyRequests,
)
return
}
type loginRequest struct { type loginRequest struct {
Nick string `json:"nick"` Nick string `json:"nick"`
Password string `json:"password"` Password string `json:"password"`
@@ -226,8 +180,6 @@ func (hdlr *Handlers) handleLogin(
return return
} }
hdlr.stats.IncrConnections()
hdlr.deliverMOTD( hdlr.deliverMOTD(
request, clientID, sessionID, payload.Nick, request, clientID, sessionID, payload.Nick,
) )

View File

@@ -16,8 +16,6 @@ import (
"git.eeqj.de/sneak/neoirc/internal/hashcash" "git.eeqj.de/sneak/neoirc/internal/hashcash"
"git.eeqj.de/sneak/neoirc/internal/healthcheck" "git.eeqj.de/sneak/neoirc/internal/healthcheck"
"git.eeqj.de/sneak/neoirc/internal/logger" "git.eeqj.de/sneak/neoirc/internal/logger"
"git.eeqj.de/sneak/neoirc/internal/ratelimit"
"git.eeqj.de/sneak/neoirc/internal/stats"
"go.uber.org/fx" "go.uber.org/fx"
) )
@@ -32,7 +30,6 @@ type Params struct {
Config *config.Config Config *config.Config
Database *db.Database Database *db.Database
Healthcheck *healthcheck.Healthcheck Healthcheck *healthcheck.Healthcheck
Stats *stats.Tracker
} }
const defaultIdleTimeout = 30 * 24 * time.Hour const defaultIdleTimeout = 30 * 24 * time.Hour
@@ -44,8 +41,6 @@ type Handlers struct {
hc *healthcheck.Healthcheck hc *healthcheck.Healthcheck
broker *broker.Broker broker *broker.Broker
hashcashVal *hashcash.Validator hashcashVal *hashcash.Validator
loginLimiter *ratelimit.Limiter
stats *stats.Tracker
cancelCleanup context.CancelFunc cancelCleanup context.CancelFunc
} }
@@ -59,24 +54,12 @@ func New(
resource = "neoirc" resource = "neoirc"
} }
loginRate := params.Config.LoginRateLimit
if loginRate <= 0 {
loginRate = ratelimit.DefaultRate
}
loginBurst := params.Config.LoginRateBurst
if loginBurst <= 0 {
loginBurst = ratelimit.DefaultBurst
}
hdlr := &Handlers{ //nolint:exhaustruct // cancelCleanup set in startCleanup hdlr := &Handlers{ //nolint:exhaustruct // cancelCleanup set in startCleanup
params: &params, params: &params,
log: params.Logger.Get(), log: params.Logger.Get(),
hc: params.Healthcheck, hc: params.Healthcheck,
broker: broker.New(), broker: broker.New(),
hashcashVal: hashcash.NewValidator(resource), hashcashVal: hashcash.NewValidator(resource),
loginLimiter: ratelimit.New(loginRate, loginBurst),
stats: params.Stats,
} }
lifecycle.Append(fx.Hook{ lifecycle.Append(fx.Hook{
@@ -168,10 +151,6 @@ func (hdlr *Handlers) stopCleanup() {
if hdlr.cancelCleanup != nil { if hdlr.cancelCleanup != nil {
hdlr.cancelCleanup() hdlr.cancelCleanup()
} }
if hdlr.loginLimiter != nil {
hdlr.loginLimiter.Stop()
}
} }
func (hdlr *Handlers) cleanupLoop(ctx context.Context) { func (hdlr *Handlers) cleanupLoop(ctx context.Context) {

View File

@@ -12,7 +12,7 @@ func (hdlr *Handlers) HandleHealthCheck() http.HandlerFunc {
writer http.ResponseWriter, writer http.ResponseWriter,
request *http.Request, request *http.Request,
) { ) {
resp := hdlr.hc.Healthcheck(request.Context()) resp := hdlr.hc.Healthcheck()
hdlr.respondJSON(writer, request, resp, httpStatusOK) hdlr.respondJSON(writer, request, resp, httpStatusOK)
} }
} }

View File

@@ -10,7 +10,6 @@ import (
"git.eeqj.de/sneak/neoirc/internal/db" "git.eeqj.de/sneak/neoirc/internal/db"
"git.eeqj.de/sneak/neoirc/internal/globals" "git.eeqj.de/sneak/neoirc/internal/globals"
"git.eeqj.de/sneak/neoirc/internal/logger" "git.eeqj.de/sneak/neoirc/internal/logger"
"git.eeqj.de/sneak/neoirc/internal/stats"
"go.uber.org/fx" "go.uber.org/fx"
) )
@@ -22,7 +21,6 @@ type Params struct {
Config *config.Config Config *config.Config
Logger *logger.Logger Logger *logger.Logger
Database *db.Database Database *db.Database
Stats *stats.Tracker
} }
// Healthcheck tracks server uptime and provides health status. // Healthcheck tracks server uptime and provides health status.
@@ -66,22 +64,11 @@ type Response struct {
Version string `json:"version"` Version string `json:"version"`
Appname string `json:"appname"` Appname string `json:"appname"`
Maintenance bool `json:"maintenanceMode"` Maintenance bool `json:"maintenanceMode"`
// Runtime statistics.
Sessions int64 `json:"sessions"`
Clients int64 `json:"clients"`
QueuedLines int64 `json:"queuedLines"`
Channels int64 `json:"channels"`
ConnectionsSinceBoot int64 `json:"connectionsSinceBoot"`
SessionsSinceBoot int64 `json:"sessionsSinceBoot"`
MessagesSinceBoot int64 `json:"messagesSinceBoot"`
} }
// Healthcheck returns the current health status of the server. // Healthcheck returns the current health status of the server.
func (hcheck *Healthcheck) Healthcheck( func (hcheck *Healthcheck) Healthcheck() *Response {
ctx context.Context, return &Response{
) *Response {
resp := &Response{
Status: "ok", Status: "ok",
Now: time.Now().UTC().Format(time.RFC3339Nano), Now: time.Now().UTC().Format(time.RFC3339Nano),
UptimeSeconds: int64(hcheck.uptime().Seconds()), UptimeSeconds: int64(hcheck.uptime().Seconds()),
@@ -89,64 +76,6 @@ func (hcheck *Healthcheck) Healthcheck(
Appname: hcheck.params.Globals.Appname, Appname: hcheck.params.Globals.Appname,
Version: hcheck.params.Globals.Version, Version: hcheck.params.Globals.Version,
Maintenance: hcheck.params.Config.MaintenanceMode, Maintenance: hcheck.params.Config.MaintenanceMode,
Sessions: 0,
Clients: 0,
QueuedLines: 0,
Channels: 0,
ConnectionsSinceBoot: hcheck.params.Stats.ConnectionsSinceBoot(),
SessionsSinceBoot: hcheck.params.Stats.SessionsSinceBoot(),
MessagesSinceBoot: hcheck.params.Stats.MessagesSinceBoot(),
}
hcheck.populateDBStats(ctx, resp)
return resp
}
// populateDBStats fills in database-derived counters.
func (hcheck *Healthcheck) populateDBStats(
ctx context.Context,
resp *Response,
) {
sessions, err := hcheck.params.Database.GetUserCount(ctx)
if err != nil {
hcheck.log.Error(
"healthcheck: session count failed",
"error", err,
)
} else {
resp.Sessions = sessions
}
clients, err := hcheck.params.Database.GetClientCount(ctx)
if err != nil {
hcheck.log.Error(
"healthcheck: client count failed",
"error", err,
)
} else {
resp.Clients = clients
}
queued, err := hcheck.params.Database.GetQueueEntryCount(ctx)
if err != nil {
hcheck.log.Error(
"healthcheck: queue entry count failed",
"error", err,
)
} else {
resp.QueuedLines = queued
}
channels, err := hcheck.params.Database.GetChannelCount(ctx)
if err != nil {
hcheck.log.Error(
"healthcheck: channel count failed",
"error", err,
)
} else {
resp.Channels = channels
} }
} }

View File

@@ -11,7 +11,7 @@ import (
"git.eeqj.de/sneak/neoirc/internal/globals" "git.eeqj.de/sneak/neoirc/internal/globals"
"git.eeqj.de/sneak/neoirc/internal/logger" "git.eeqj.de/sneak/neoirc/internal/logger"
basicauth "github.com/99designs/basicauth-go" basicauth "github.com/99designs/basicauth-go"
chimw "github.com/go-chi/chi/v5/middleware" chimw "github.com/go-chi/chi/middleware"
"github.com/go-chi/cors" "github.com/go-chi/cors"
metrics "github.com/slok/go-http-metrics/metrics/prometheus" metrics "github.com/slok/go-http-metrics/metrics/prometheus"
ghmm "github.com/slok/go-http-metrics/middleware" ghmm "github.com/slok/go-http-metrics/middleware"

View File

@@ -1,122 +0,0 @@
// Package ratelimit provides per-IP rate limiting for HTTP endpoints.
package ratelimit
import (
"sync"
"time"
"golang.org/x/time/rate"
)
const (
// DefaultRate is the default number of allowed requests per second.
DefaultRate = 1.0
// DefaultBurst is the default maximum burst size.
DefaultBurst = 5
// DefaultSweepInterval controls how often stale entries are pruned.
DefaultSweepInterval = 10 * time.Minute
// DefaultEntryTTL is how long an unused entry lives before eviction.
DefaultEntryTTL = 15 * time.Minute
)
// entry tracks a per-IP rate limiter and when it was last used.
type entry struct {
limiter *rate.Limiter
lastSeen time.Time
}
// Limiter manages per-key rate limiters with automatic cleanup
// of stale entries.
type Limiter struct {
mu sync.Mutex
entries map[string]*entry
rate rate.Limit
burst int
entryTTL time.Duration
stopCh chan struct{}
}
// New creates a new per-key rate Limiter.
// The ratePerSec parameter sets how many requests per second are
// allowed per key. The burst parameter sets the maximum number of
// requests that can be made in a single burst.
func New(ratePerSec float64, burst int) *Limiter {
limiter := &Limiter{
mu: sync.Mutex{},
entries: make(map[string]*entry),
rate: rate.Limit(ratePerSec),
burst: burst,
entryTTL: DefaultEntryTTL,
stopCh: make(chan struct{}),
}
go limiter.sweepLoop()
return limiter
}
// Allow reports whether a request from the given key should be
// allowed. It consumes one token from the key's rate limiter.
func (l *Limiter) Allow(key string) bool {
l.mu.Lock()
ent, exists := l.entries[key]
if !exists {
ent = &entry{
limiter: rate.NewLimiter(l.rate, l.burst),
lastSeen: time.Now(),
}
l.entries[key] = ent
} else {
ent.lastSeen = time.Now()
}
l.mu.Unlock()
return ent.limiter.Allow()
}
// Stop terminates the background sweep goroutine.
func (l *Limiter) Stop() {
close(l.stopCh)
}
// Len returns the number of tracked keys (for testing).
func (l *Limiter) Len() int {
l.mu.Lock()
defer l.mu.Unlock()
return len(l.entries)
}
// sweepLoop periodically removes entries that haven't been seen
// within the TTL.
func (l *Limiter) sweepLoop() {
ticker := time.NewTicker(DefaultSweepInterval)
defer ticker.Stop()
for {
select {
case <-ticker.C:
l.sweep()
case <-l.stopCh:
return
}
}
}
// sweep removes stale entries.
func (l *Limiter) sweep() {
l.mu.Lock()
defer l.mu.Unlock()
cutoff := time.Now().Add(-l.entryTTL)
for key, ent := range l.entries {
if ent.lastSeen.Before(cutoff) {
delete(l.entries, key)
}
}
}

View File

@@ -1,106 +0,0 @@
package ratelimit_test
import (
"testing"
"git.eeqj.de/sneak/neoirc/internal/ratelimit"
)
func TestNewCreatesLimiter(t *testing.T) {
t.Parallel()
limiter := ratelimit.New(1.0, 5)
defer limiter.Stop()
if limiter == nil {
t.Fatal("expected non-nil limiter")
}
}
func TestAllowWithinBurst(t *testing.T) {
t.Parallel()
limiter := ratelimit.New(1.0, 3)
defer limiter.Stop()
for i := range 3 {
if !limiter.Allow("192.168.1.1") {
t.Fatalf(
"request %d should be allowed within burst",
i+1,
)
}
}
}
func TestAllowExceedsBurst(t *testing.T) {
t.Parallel()
// Rate of 0 means no token replenishment, only burst.
limiter := ratelimit.New(0, 3)
defer limiter.Stop()
for range 3 {
limiter.Allow("10.0.0.1")
}
if limiter.Allow("10.0.0.1") {
t.Fatal("fourth request should be denied after burst exhausted")
}
}
func TestAllowSeparateKeys(t *testing.T) {
t.Parallel()
// Rate of 0, burst of 1 — only one request per key.
limiter := ratelimit.New(0, 1)
defer limiter.Stop()
if !limiter.Allow("10.0.0.1") {
t.Fatal("first request for key A should be allowed")
}
if !limiter.Allow("10.0.0.2") {
t.Fatal("first request for key B should be allowed")
}
if limiter.Allow("10.0.0.1") {
t.Fatal("second request for key A should be denied")
}
if limiter.Allow("10.0.0.2") {
t.Fatal("second request for key B should be denied")
}
}
func TestLenTracksKeys(t *testing.T) {
t.Parallel()
limiter := ratelimit.New(1.0, 5)
defer limiter.Stop()
if limiter.Len() != 0 {
t.Fatalf("expected 0 entries, got %d", limiter.Len())
}
limiter.Allow("10.0.0.1")
limiter.Allow("10.0.0.2")
if limiter.Len() != 2 {
t.Fatalf("expected 2 entries, got %d", limiter.Len())
}
// Same key again should not increase count.
limiter.Allow("10.0.0.1")
if limiter.Len() != 2 {
t.Fatalf("expected 2 entries, got %d", limiter.Len())
}
}
func TestStopDoesNotPanic(t *testing.T) {
t.Parallel()
limiter := ratelimit.New(1.0, 5)
limiter.Stop()
}

View File

@@ -8,8 +8,8 @@ import (
"git.eeqj.de/sneak/neoirc/web" "git.eeqj.de/sneak/neoirc/web"
sentryhttp "github.com/getsentry/sentry-go/http" sentryhttp "github.com/getsentry/sentry-go/http"
"github.com/go-chi/chi/v5" "github.com/go-chi/chi"
"github.com/go-chi/chi/v5/middleware" "github.com/go-chi/chi/middleware"
"github.com/prometheus/client_golang/prometheus/promhttp" "github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/spf13/viper" "github.com/spf13/viper"
) )

View File

@@ -20,7 +20,7 @@ import (
"go.uber.org/fx" "go.uber.org/fx"
"github.com/getsentry/sentry-go" "github.com/getsentry/sentry-go"
"github.com/go-chi/chi/v5" "github.com/go-chi/chi"
_ "github.com/joho/godotenv/autoload" // loads .env file _ "github.com/joho/godotenv/autoload" // loads .env file
) )

View File

@@ -1,52 +0,0 @@
// Package stats tracks runtime statistics since server boot.
package stats
import (
"sync/atomic"
)
// Tracker holds atomic counters for runtime statistics
// that accumulate since the server started.
type Tracker struct {
connectionsSinceBoot atomic.Int64
sessionsSinceBoot atomic.Int64
messagesSinceBoot atomic.Int64
}
// New creates a new Tracker with all counters at zero.
func New() *Tracker {
return &Tracker{} //nolint:exhaustruct // atomic fields have zero-value defaults
}
// IncrConnections increments the total connection count.
func (t *Tracker) IncrConnections() {
t.connectionsSinceBoot.Add(1)
}
// IncrSessions increments the total session count.
func (t *Tracker) IncrSessions() {
t.sessionsSinceBoot.Add(1)
}
// IncrMessages increments the total PRIVMSG/NOTICE count.
func (t *Tracker) IncrMessages() {
t.messagesSinceBoot.Add(1)
}
// ConnectionsSinceBoot returns the total number of
// client connections since boot.
func (t *Tracker) ConnectionsSinceBoot() int64 {
return t.connectionsSinceBoot.Load()
}
// SessionsSinceBoot returns the total number of sessions
// created since boot.
func (t *Tracker) SessionsSinceBoot() int64 {
return t.sessionsSinceBoot.Load()
}
// MessagesSinceBoot returns the total number of
// PRIVMSG/NOTICE messages sent since boot.
func (t *Tracker) MessagesSinceBoot() int64 {
return t.messagesSinceBoot.Load()
}

View File

@@ -1,117 +0,0 @@
package stats_test
import (
"testing"
"git.eeqj.de/sneak/neoirc/internal/stats"
)
func TestNew(t *testing.T) {
t.Parallel()
tracker := stats.New()
if tracker == nil {
t.Fatal("expected non-nil tracker")
}
if tracker.ConnectionsSinceBoot() != 0 {
t.Errorf(
"expected 0 connections, got %d",
tracker.ConnectionsSinceBoot(),
)
}
if tracker.SessionsSinceBoot() != 0 {
t.Errorf(
"expected 0 sessions, got %d",
tracker.SessionsSinceBoot(),
)
}
if tracker.MessagesSinceBoot() != 0 {
t.Errorf(
"expected 0 messages, got %d",
tracker.MessagesSinceBoot(),
)
}
}
func TestIncrConnections(t *testing.T) {
t.Parallel()
tracker := stats.New()
tracker.IncrConnections()
tracker.IncrConnections()
tracker.IncrConnections()
got := tracker.ConnectionsSinceBoot()
if got != 3 {
t.Errorf(
"expected 3 connections, got %d", got,
)
}
}
func TestIncrSessions(t *testing.T) {
t.Parallel()
tracker := stats.New()
tracker.IncrSessions()
tracker.IncrSessions()
got := tracker.SessionsSinceBoot()
if got != 2 {
t.Errorf(
"expected 2 sessions, got %d", got,
)
}
}
func TestIncrMessages(t *testing.T) {
t.Parallel()
tracker := stats.New()
tracker.IncrMessages()
got := tracker.MessagesSinceBoot()
if got != 1 {
t.Errorf(
"expected 1 message, got %d", got,
)
}
}
func TestCountersAreIndependent(t *testing.T) {
t.Parallel()
tracker := stats.New()
tracker.IncrConnections()
tracker.IncrSessions()
tracker.IncrMessages()
tracker.IncrMessages()
if tracker.ConnectionsSinceBoot() != 1 {
t.Errorf(
"expected 1 connection, got %d",
tracker.ConnectionsSinceBoot(),
)
}
if tracker.SessionsSinceBoot() != 1 {
t.Errorf(
"expected 1 session, got %d",
tracker.SessionsSinceBoot(),
)
}
if tracker.MessagesSinceBoot() != 2 {
t.Errorf(
"expected 2 messages, got %d",
tracker.MessagesSinceBoot(),
)
}
}

View File

@@ -2,7 +2,6 @@ package irc
// IRC command names (RFC 1459 / RFC 2812). // IRC command names (RFC 1459 / RFC 2812).
const ( const (
CmdAway = "AWAY"
CmdJoin = "JOIN" CmdJoin = "JOIN"
CmdList = "LIST" CmdList = "LIST"
CmdLusers = "LUSERS" CmdLusers = "LUSERS"