refactor: 30-day defaults for all expiry settings

- QUEUE_MAX_AGE: 48h -> 30 days (per-client queue entry expiry)
- MESSAGE_MAX_AGE: replaces count-based MAX_HISTORY with time-based
  30-day message expiry
- SESSION_IDLE_TIMEOUT: 24h -> 30 days

All expiry is now time-based (30 days) as requested.

Closes #40

Makefile

@@ -1,4 +1,4 @@
-.PHONY: all build lint fmt fmt-check test check clean run debug docker hooks ensure-web-dist
+.PHONY: all build lint fmt fmt-check test check clean run debug docker hooks
 
 BINARY := neoircd
 VERSION := $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
@@ -7,21 +7,10 @@ LDFLAGS := -X main.Version=$(VERSION) -X main.Buildarch=$(BUILDARCH)
 
 all: check build
 
-# ensure-web-dist creates placeholder files so //go:embed dist/* in
+build:
-# web/embed.go resolves without a full Node.js build.  The real SPA is
-# built by the web-builder Docker stage; these placeholders let
-# "make test" and "make build" work outside Docker.
-ensure-web-dist:
-	@if [ ! -d web/dist ]; then \
-		mkdir -p web/dist && \
-		touch web/dist/index.html web/dist/style.css web/dist/app.js && \
-		echo "==> Created placeholder web/dist/ for go:embed"; \
-	fi
-
-build: ensure-web-dist
 	go build -ldflags "$(LDFLAGS)" -o bin/$(BINARY) ./cmd/neoircd
 
-lint: ensure-web-dist
+lint:
 	golangci-lint run --config .golangci.yml ./...
 
 fmt:
@@ -31,7 +20,7 @@ fmt:
 fmt-check:
 	@test -z "$$(gofmt -l .)" || (echo "Files not formatted:" && gofmt -l . && exit 1)
 
-test: ensure-web-dist
+test:
 	go test -timeout 30s -v -race -cover ./...
 
 # check runs all validation without making changes

cmd/neoirc-cli/api/client.go

@@ -14,7 +14,7 @@ import (
 	"strings"
 	"time"
 
-	"git.eeqj.de/sneak/neoirc/pkg/irc"
+	"git.eeqj.de/sneak/neoirc/internal/irc"
 )
 
 const (
@@ -43,30 +43,13 @@ 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

cmd/neoirc-cli/api/types.go

@@ -4,8 +4,7 @@ import "time"
 
 // SessionRequest is the body for POST /api/v1/session.
 type SessionRequest struct {
-	Nick     string `json:"nick"`
+	Nick string `json:"nick"`
-	Hashcash string `json:"pow_token,omitempty"` //nolint:tagliatelle
 }
 
 // SessionResponse is the response from session creation.
@@ -64,10 +63,9 @@ type Channel struct {
 
 // ServerInfo is the response from GET /api/v1/server.
 type ServerInfo struct {
-	Name         string `json:"name"`
+	Name    string `json:"name"`
-	MOTD         string `json:"motd"`
+	MOTD    string `json:"motd"`
-	Version      string `json:"version"`
+	Version string `json:"version"`
-	HashcashBits int    `json:"hashcash_bits"` //nolint:tagliatelle
 }
 
 // MessagesResponse wraps polling results.

cmd/neoirc-cli/main.go

@@ -1,8 +1,911 @@
 // 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"
+	"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{}
+}
 
 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: 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,
+		))
+	}
 }

cmd/neoirc-cli/ui.go

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

cmd/neoircd/main.go

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

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/99designs/basicauth-go v0.0.0-20230316000542-bf6f9cbbf0f8
 	github.com/gdamore/tcell/v2 v2.13.8
 	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/google/uuid v1.6.0
 	github.com/joho/godotenv v1.5.1

go.sum

@@ -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/getsentry/sentry-go v0.42.0 h1:eeFMACuZTbUQf90RE8dE4tXeSe4CZyfvR1MBL7RLEt8=
 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/go.mod h1:sSbTewc+6wYHBBCW7ytsFSn836hqM7JxpglAy2Vzc58=
 github.com/go-errors/errors v1.4.2 h1:J6MZopCL4uSllY1OfXM374weqZFFItUbrImctkmUxIA=

internal/cli/api/hashcash.go

@@ -1,98 +0,0 @@
-package neoircapi
-
-import (
-	"crypto/rand"
-	"crypto/sha256"
-	"encoding/hex"
-	"fmt"
-	"math/big"
-	"time"
-
-	"git.eeqj.de/sneak/neoirc/internal/hashcash"
-)
-
-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
-		}
-	}
-}
-
-// MintChannelHashcash computes a hashcash stamp bound to
-// a specific channel and message body. The stamp format
-// is 1:bits:YYMMDD:channel:bodyhash:counter where
-// bodyhash is the hex-encoded SHA-256 of the message
-// body bytes. Delegates to the internal/hashcash package.
-func MintChannelHashcash(
-	bits int,
-	channel string,
-	body []byte,
-) string {
-	bodyHash := hashcash.BodyHash(body)
-
-	return hashcash.MintChannelStamp(
-		bits, channel, bodyHash,
-	)
-}
-
-// 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())
-}

internal/cli/app.go

@@ -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/pkg/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,
-		))
-	}
-}

internal/config/config.go

@@ -38,16 +38,13 @@ type Config struct {
 	MetricsUsername    string
 	Port               int
 	SentryDSN          string
-	MessageMaxAge      string
+	MessageMaxAge      int
 	MaxMessageSize     int
-	QueueMaxAge        string
+	QueueMaxAge        int
 	MOTD               string
 	ServerName         string
 	FederationKey      string
 	SessionIdleTimeout string
-	HashcashBits       int
-	OperName           string
-	OperPassword       string
 	params             *Params
 	log                *slog.Logger
 }
@@ -72,16 +69,13 @@ func New(
 	viper.SetDefault("SENTRY_DSN", "")
 	viper.SetDefault("METRICS_USERNAME", "")
 	viper.SetDefault("METRICS_PASSWORD", "")
-	viper.SetDefault("MESSAGE_MAX_AGE", "720h")
+	viper.SetDefault("MESSAGE_MAX_AGE", "2592000")
 	viper.SetDefault("MAX_MESSAGE_SIZE", "4096")
-	viper.SetDefault("QUEUE_MAX_AGE", "720h")
+	viper.SetDefault("QUEUE_MAX_AGE", "2592000")
 	viper.SetDefault("MOTD", defaultMOTD)
 	viper.SetDefault("SERVER_NAME", "")
 	viper.SetDefault("FEDERATION_KEY", "")
 	viper.SetDefault("SESSION_IDLE_TIMEOUT", "720h")
-	viper.SetDefault("NEOIRC_HASHCASH_BITS", "20")
-	viper.SetDefault("NEOIRC_OPER_NAME", "")
-	viper.SetDefault("NEOIRC_OPER_PASSWORD", "")
 
 	err := viper.ReadInConfig()
 	if err != nil {
@@ -100,16 +94,13 @@ func New(
 		MaintenanceMode:    viper.GetBool("MAINTENANCE_MODE"),
 		MetricsUsername:    viper.GetString("METRICS_USERNAME"),
 		MetricsPassword:    viper.GetString("METRICS_PASSWORD"),
-		MessageMaxAge:      viper.GetString("MESSAGE_MAX_AGE"),
+		MessageMaxAge:      viper.GetInt("MESSAGE_MAX_AGE"),
 		MaxMessageSize:     viper.GetInt("MAX_MESSAGE_SIZE"),
-		QueueMaxAge:        viper.GetString("QUEUE_MAX_AGE"),
+		QueueMaxAge:        viper.GetInt("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"),
-		OperName:           viper.GetString("NEOIRC_OPER_NAME"),
-		OperPassword:       viper.GetString("NEOIRC_OPER_PASSWORD"),
 		log:                log,
 		params:             &params,
 	}

internal/db/auth.go

@@ -20,12 +20,8 @@ var errNoPassword = errors.New(
 // and returns session ID, client ID, and token.
 func (database *Database) RegisterUser(
 	ctx context.Context,
-	nick, password, username, hostname, remoteIP string,
+	nick, password string,
 ) (int64, int64, string, error) {
-	if username == "" {
-		username = nick
-	}
-
 	hash, err := bcrypt.GenerateFromPassword(
 		[]byte(password), bcryptCost,
 	)
@@ -54,11 +50,10 @@ func (database *Database) RegisterUser(
 
 	res, err := transaction.ExecContext(ctx,
 		`INSERT INTO sessions
-		 (uuid, nick, username, hostname, ip,
+		 (uuid, nick, password_hash,
-		  password_hash, created_at, last_seen)
+		  created_at, last_seen)
-		 VALUES (?, ?, ?, ?, ?, ?, ?, ?)`,
+		 VALUES (?, ?, ?, ?, ?)`,
-		sessionUUID, nick, username, hostname,
+		sessionUUID, nick, string(hash), now, now)
-		remoteIP, string(hash), now, now)
 	if err != nil {
 		_ = transaction.Rollback()
 
@@ -69,15 +64,12 @@ func (database *Database) RegisterUser(
 
 	sessionID, _ := res.LastInsertId()
 
-	tokenHash := hashToken(token)
-
 	clientRes, err := transaction.ExecContext(ctx,
 		`INSERT INTO clients
-		 (uuid, session_id, token, ip, hostname,
+		 (uuid, session_id, token,
 		  created_at, last_seen)
-		 VALUES (?, ?, ?, ?, ?, ?, ?)`,
+		 VALUES (?, ?, ?, ?, ?)`,
-		clientUUID, sessionID, tokenHash,
+		clientUUID, sessionID, token, now, now)
-		remoteIP, hostname, now, now)
 	if err != nil {
 		_ = transaction.Rollback()
 
@@ -102,7 +94,7 @@ func (database *Database) RegisterUser(
 // client token.
 func (database *Database) LoginUser(
 	ctx context.Context,
-	nick, password, remoteIP, hostname string,
+	nick, password string,
 ) (int64, int64, string, error) {
 	var (
 		sessionID    int64
@@ -145,15 +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, ip, hostname,
+		 (uuid, session_id, token,
 		  created_at, last_seen)
-		 VALUES (?, ?, ?, ?, ?, ?, ?)`,
+		 VALUES (?, ?, ?, ?, ?)`,
-		clientUUID, sessionID, tokenHash,
+		clientUUID, sessionID, token, now, now)
-		remoteIP, hostname, now, now)
 	if err != nil {
 		return 0, 0, "", fmt.Errorf(
 			"create login client: %w", err,

internal/db/auth_test.go

@@ -13,7 +13,7 @@ func TestRegisterUser(t *testing.T) {
 	ctx := t.Context()
 
 	sessionID, clientID, token, err :=
-		database.RegisterUser(ctx, "reguser", "password123", "", "", "")
+		database.RegisterUser(ctx, "reguser", "password123")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -38,69 +38,6 @@ func TestRegisterUser(t *testing.T) {
 	}
 }
 
-func TestRegisterUserWithUserHost(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-	ctx := t.Context()
-
-	sessionID, _, _, err := database.RegisterUser(
-		ctx, "reguhost", "password123",
-		"myident", "example.org", "",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	info, err := database.GetSessionHostInfo(
-		ctx, sessionID,
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if info.Username != "myident" {
-		t.Fatalf(
-			"expected myident, got %s", info.Username,
-		)
-	}
-
-	if info.Hostname != "example.org" {
-		t.Fatalf(
-			"expected example.org, got %s",
-			info.Hostname,
-		)
-	}
-}
-
-func TestRegisterUserDefaultUsername(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-	ctx := t.Context()
-
-	sessionID, _, _, err := database.RegisterUser(
-		ctx, "regdefault", "password123", "", "", "",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	info, err := database.GetSessionHostInfo(
-		ctx, sessionID,
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if info.Username != "regdefault" {
-		t.Fatalf(
-			"expected regdefault, got %s",
-			info.Username,
-		)
-	}
-}
-
 func TestRegisterUserDuplicateNick(t *testing.T) {
 	t.Parallel()
 
@@ -108,7 +45,7 @@ func TestRegisterUserDuplicateNick(t *testing.T) {
 	ctx := t.Context()
 
 	regSID, regCID, regToken, err :=
-		database.RegisterUser(ctx, "dupnick", "password123", "", "", "")
+		database.RegisterUser(ctx, "dupnick", "password123")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -118,7 +55,7 @@ func TestRegisterUserDuplicateNick(t *testing.T) {
 	_ = regToken
 
 	dupSID, dupCID, dupToken, dupErr :=
-		database.RegisterUser(ctx, "dupnick", "other12345", "", "", "")
+		database.RegisterUser(ctx, "dupnick", "other12345")
 	if dupErr == nil {
 		t.Fatal("expected error for duplicate nick")
 	}
@@ -135,7 +72,7 @@ func TestLoginUser(t *testing.T) {
 	ctx := t.Context()
 
 	regSID, regCID, regToken, err :=
-		database.RegisterUser(ctx, "loginuser", "mypassword", "", "", "")
+		database.RegisterUser(ctx, "loginuser", "mypassword")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -145,7 +82,7 @@ func TestLoginUser(t *testing.T) {
 	_ = regToken
 
 	sessionID, clientID, token, err :=
-		database.LoginUser(ctx, "loginuser", "mypassword", "", "")
+		database.LoginUser(ctx, "loginuser", "mypassword")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -166,83 +103,6 @@ func TestLoginUser(t *testing.T) {
 	}
 }
 
-func TestLoginUserStoresClientIPHostname(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-	ctx := t.Context()
-
-	regSID, regCID, regToken, err := database.RegisterUser(
-		ctx, "loginipuser", "password123",
-		"", "", "10.0.0.1",
-	)
-
-	_ = regSID
-	_ = regCID
-	_ = regToken
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	_, clientID, _, err := database.LoginUser(
-		ctx, "loginipuser", "password123",
-		"10.0.0.99", "newhost.example.com",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	clientInfo, err := database.GetClientHostInfo(
-		ctx, clientID,
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if clientInfo.IP != "10.0.0.99" {
-		t.Fatalf(
-			"expected client IP 10.0.0.99, got %s",
-			clientInfo.IP,
-		)
-	}
-
-	if clientInfo.Hostname != "newhost.example.com" {
-		t.Fatalf(
-			"expected hostname newhost.example.com, got %s",
-			clientInfo.Hostname,
-		)
-	}
-}
-
-func TestRegisterUserStoresSessionIP(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-	ctx := t.Context()
-
-	sessionID, _, _, err := database.RegisterUser(
-		ctx, "regipuser", "password123",
-		"ident", "host.local", "172.16.0.5",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	info, err := database.GetSessionHostInfo(
-		ctx, sessionID,
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if info.IP != "172.16.0.5" {
-		t.Fatalf(
-			"expected session IP 172.16.0.5, got %s",
-			info.IP,
-		)
-	}
-}
-
 func TestLoginUserWrongPassword(t *testing.T) {
 	t.Parallel()
 
@@ -250,7 +110,7 @@ func TestLoginUserWrongPassword(t *testing.T) {
 	ctx := t.Context()
 
 	regSID, regCID, regToken, err :=
-		database.RegisterUser(ctx, "wrongpw", "correctpass", "", "", "")
+		database.RegisterUser(ctx, "wrongpw", "correctpass")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -260,7 +120,7 @@ func TestLoginUserWrongPassword(t *testing.T) {
 	_ = regToken
 
 	loginSID, loginCID, loginToken, loginErr :=
-		database.LoginUser(ctx, "wrongpw", "wrongpass12", "", "")
+		database.LoginUser(ctx, "wrongpw", "wrongpass12")
 	if loginErr == nil {
 		t.Fatal("expected error for wrong password")
 	}
@@ -278,7 +138,7 @@ func TestLoginUserNoPassword(t *testing.T) {
 
 	// Create anonymous session (no password).
 	anonSID, anonCID, anonToken, err :=
-		database.CreateSession(ctx, "anon", "", "", "")
+		database.CreateSession(ctx, "anon")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -288,7 +148,7 @@ func TestLoginUserNoPassword(t *testing.T) {
 	_ = anonToken
 
 	loginSID, loginCID, loginToken, loginErr :=
-		database.LoginUser(ctx, "anon", "anything1", "", "")
+		database.LoginUser(ctx, "anon", "anything1")
 	if loginErr == nil {
 		t.Fatal(
 			"expected error for login on passwordless account",
@@ -307,7 +167,7 @@ func TestLoginUserNonexistent(t *testing.T) {
 	ctx := t.Context()
 
 	loginSID, loginCID, loginToken, err :=
-		database.LoginUser(ctx, "ghost", "password123", "", "")
+		database.LoginUser(ctx, "ghost", "password123")
 	if err == nil {
 		t.Fatal("expected error for nonexistent user")
 	}

internal/db/errors.go

@@ -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
-}

internal/db/queries.go

@@ -3,7 +3,6 @@ package db
 import (
 	"context"
 	"crypto/rand"
-	"crypto/sha256"
 	"database/sql"
 	"encoding/hex"
 	"encoding/json"
@@ -11,7 +10,7 @@ import (
 	"strconv"
 	"time"
 
-	"git.eeqj.de/sneak/neoirc/pkg/irc"
+	"git.eeqj.de/sneak/neoirc/internal/irc"
 	"github.com/google/uuid"
 )
 
@@ -32,14 +31,6 @@ 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"`
@@ -74,40 +65,14 @@ type ChannelInfo struct {
 type MemberInfo struct {
 	ID       int64     `json:"id"`
 	Nick     string    `json:"nick"`
-	Username string    `json:"username"`
-	Hostname string    `json:"hostname"`
 	LastSeen time.Time `json:"lastSeen"`
 }
 
-// Hostmask returns the IRC hostmask in
-// nick!user@host format.
-func (m *MemberInfo) Hostmask() string {
-	return FormatHostmask(m.Nick, m.Username, m.Hostname)
-}
-
-// FormatHostmask formats a nick, username, and hostname
-// into a standard IRC hostmask string (nick!user@host).
-func FormatHostmask(nick, username, hostname string) string {
-	if username == "" {
-		username = nick
-	}
-
-	if hostname == "" {
-		hostname = "*"
-	}
-
-	return nick + "!" + username + "@" + hostname
-}
-
 // CreateSession registers a new session and its first client.
 func (database *Database) CreateSession(
 	ctx context.Context,
-	nick, username, hostname, remoteIP string,
+	nick string,
 ) (int64, int64, string, error) {
-	if username == "" {
-		username = nick
-	}
-
 	sessionUUID := uuid.New().String()
 	clientUUID := uuid.New().String()
 
@@ -127,11 +92,9 @@ func (database *Database) CreateSession(
 
 	res, err := transaction.ExecContext(ctx,
 		`INSERT INTO sessions
-		 (uuid, nick, username, hostname, ip,
+		 (uuid, nick, created_at, last_seen)
-		  created_at, last_seen)
+		 VALUES (?, ?, ?, ?)`,
-		 VALUES (?, ?, ?, ?, ?, ?, ?)`,
+		sessionUUID, nick, now, now)
-		sessionUUID, nick, username, hostname,
-		remoteIP, now, now)
 	if err != nil {
 		_ = transaction.Rollback()
 
@@ -142,15 +105,12 @@ func (database *Database) CreateSession(
 
 	sessionID, _ := res.LastInsertId()
 
-	tokenHash := hashToken(token)
-
 	clientRes, err := transaction.ExecContext(ctx,
 		`INSERT INTO clients
-		 (uuid, session_id, token, ip, hostname,
+		 (uuid, session_id, token,
 		  created_at, last_seen)
-		 VALUES (?, ?, ?, ?, ?, ?, ?)`,
+		 VALUES (?, ?, ?, ?, ?)`,
-		clientUUID, sessionID, tokenHash,
+		clientUUID, sessionID, token, now, now)
-		remoteIP, hostname, now, now)
 	if err != nil {
 		_ = transaction.Rollback()
 
@@ -183,8 +143,6 @@ func (database *Database) GetSessionByToken(
 		nick      string
 	)
 
-	tokenHash := hashToken(token)
-
 	err := database.conn.QueryRowContext(
 		ctx,
 		`SELECT s.id, c.id, s.nick
@@ -192,7 +150,7 @@ 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(
@@ -238,135 +196,6 @@ func (database *Database) GetSessionByNick(
 	return sessionID, nil
 }
 
-// SessionHostInfo holds the username, hostname, and IP
-// for a session.
-type SessionHostInfo struct {
-	Username string
-	Hostname string
-	IP       string
-}
-
-// GetSessionHostInfo returns the username, hostname,
-// and IP for a session.
-func (database *Database) GetSessionHostInfo(
-	ctx context.Context,
-	sessionID int64,
-) (*SessionHostInfo, error) {
-	var info SessionHostInfo
-
-	err := database.conn.QueryRowContext(
-		ctx,
-		`SELECT username, hostname, ip
-		 FROM sessions WHERE id = ?`,
-		sessionID,
-	).Scan(&info.Username, &info.Hostname, &info.IP)
-	if err != nil {
-		return nil, fmt.Errorf(
-			"get session host info: %w", err,
-		)
-	}
-
-	return &info, nil
-}
-
-// ClientHostInfo holds the IP and hostname for a client.
-type ClientHostInfo struct {
-	IP       string
-	Hostname string
-}
-
-// GetClientHostInfo returns the IP and hostname for a
-// client.
-func (database *Database) GetClientHostInfo(
-	ctx context.Context,
-	clientID int64,
-) (*ClientHostInfo, error) {
-	var info ClientHostInfo
-
-	err := database.conn.QueryRowContext(
-		ctx,
-		`SELECT ip, hostname
-		 FROM clients WHERE id = ?`,
-		clientID,
-	).Scan(&info.IP, &info.Hostname)
-	if err != nil {
-		return nil, fmt.Errorf(
-			"get client host info: %w", err,
-		)
-	}
-
-	return &info, nil
-}
-
-// SetSessionOper sets the is_oper flag on a session.
-func (database *Database) SetSessionOper(
-	ctx context.Context,
-	sessionID int64,
-	isOper bool,
-) error {
-	val := 0
-	if isOper {
-		val = 1
-	}
-
-	_, err := database.conn.ExecContext(
-		ctx,
-		`UPDATE sessions SET is_oper = ? WHERE id = ?`,
-		val, sessionID,
-	)
-	if err != nil {
-		return fmt.Errorf("set session oper: %w", err)
-	}
-
-	return nil
-}
-
-// IsSessionOper returns whether the session has oper
-// status.
-func (database *Database) IsSessionOper(
-	ctx context.Context,
-	sessionID int64,
-) (bool, error) {
-	var isOper int
-
-	err := database.conn.QueryRowContext(
-		ctx,
-		`SELECT is_oper FROM sessions WHERE id = ?`,
-		sessionID,
-	).Scan(&isOper)
-	if err != nil {
-		return false, fmt.Errorf(
-			"check session oper: %w", err,
-		)
-	}
-
-	return isOper != 0, nil
-}
-
-// GetLatestClientForSession returns the IP and hostname
-// of the most recently created client for a session.
-func (database *Database) GetLatestClientForSession(
-	ctx context.Context,
-	sessionID int64,
-) (*ClientHostInfo, error) {
-	var info ClientHostInfo
-
-	err := database.conn.QueryRowContext(
-		ctx,
-		`SELECT ip, hostname FROM clients
-		 WHERE session_id = ?
-		 ORDER BY created_at DESC LIMIT 1`,
-		sessionID,
-	).Scan(&info.IP, &info.Hostname)
-	if err != nil {
-		return nil, fmt.Errorf(
-			"get latest client for session: %w", err,
-		)
-	}
-
-	return &info, nil
-}
-
 // GetChannelByName returns the channel ID for a name.
 func (database *Database) GetChannelByName(
 	ctx context.Context,
@@ -546,8 +375,7 @@ func (database *Database) ChannelMembers(
 	channelID int64,
 ) ([]MemberInfo, error) {
 	rows, err := database.conn.QueryContext(ctx,
-		`SELECT s.id, s.nick, s.username,
+		`SELECT s.id, s.nick, s.last_seen
-		   s.hostname, s.last_seen
 		 FROM sessions s
 		 INNER JOIN channel_members cm
 		   ON cm.session_id = s.id
@@ -567,9 +395,7 @@ func (database *Database) ChannelMembers(
 		var member MemberInfo
 
 		err = rows.Scan(
-			&member.ID, &member.Nick,
+			&member.ID, &member.Nick, &member.LastSeen,
-			&member.Username, &member.Hostname,
-			&member.LastSeen,
 		)
 		if err != nil {
 			return nil, fmt.Errorf(
@@ -907,8 +733,8 @@ func scanMessages(
 			code, _ := strconv.Atoi(msg.Command)
 			msg.Code = code
 
-			if mt, err := irc.FromInt(code); err == nil {
+			if name := irc.Name(code); name != "" {
-				msg.Command = mt.Name()
+				msg.Command = name
 			}
 		}
 
@@ -1020,26 +846,6 @@ func (database *Database) GetUserCount(
 	return count, nil
 }
 
-// GetOperCount returns the number of sessions with oper
-// status.
-func (database *Database) GetOperCount(
-	ctx context.Context,
-) (int64, error) {
-	var count int64
-
-	err := database.conn.QueryRowContext(
-		ctx,
-		"SELECT COUNT(*) FROM sessions WHERE is_oper = 1",
-	).Scan(&count)
-	if err != nil {
-		return 0, fmt.Errorf(
-			"get oper count: %w", err,
-		)
-	}
-
-	return count, nil
-}
-
 // ClientCountForSession returns the number of clients
 // belonging to a session.
 func (database *Database) ClientCountForSession(
@@ -1291,123 +1097,8 @@ func (database *Database) GetSessionCreatedAt(
 	return createdAt, nil
 }
 
-// SetAway sets the away message for a session.
+// PruneOldQueueEntries deletes client_queues rows older
-// An empty message clears the away status.
+// than cutoff and returns the number of rows removed.
-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
-// older than cutoff and returns the number of rows removed.
 func (database *Database) PruneOldQueueEntries(
 	ctx context.Context,
 	cutoff time.Time,
@@ -1418,7 +1109,7 @@ func (database *Database) PruneOldQueueEntries(
 	)
 	if err != nil {
 		return 0, fmt.Errorf(
-			"prune old client output queue entries: %w", err,
+			"prune old queue entries: %w", err,
 		)
 	}
 
@@ -1447,149 +1138,3 @@ func (database *Database) PruneOldMessages(
 
 	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
-}
-
-// GetChannelHashcashBits returns the hashcash difficulty
-// requirement for a channel. Returns 0 if not set.
-func (database *Database) GetChannelHashcashBits(
-	ctx context.Context,
-	channelID int64,
-) (int, error) {
-	var bits int
-
-	err := database.conn.QueryRowContext(
-		ctx,
-		"SELECT hashcash_bits FROM channels WHERE id = ?",
-		channelID,
-	).Scan(&bits)
-	if err != nil {
-		return 0, fmt.Errorf(
-			"get channel hashcash bits: %w", err,
-		)
-	}
-
-	return bits, nil
-}
-
-// SetChannelHashcashBits sets the hashcash difficulty
-// requirement for a channel. A value of 0 disables the
-// requirement.
-func (database *Database) SetChannelHashcashBits(
-	ctx context.Context,
-	channelID int64,
-	bits int,
-) error {
-	_, err := database.conn.ExecContext(ctx,
-		`UPDATE channels
-		 SET hashcash_bits = ?, updated_at = ?
-		 WHERE id = ?`,
-		bits, time.Now(), channelID)
-	if err != nil {
-		return fmt.Errorf(
-			"set channel hashcash bits: %w", err,
-		)
-	}
-
-	return nil
-}
-
-// RecordSpentHashcash stores a spent hashcash stamp hash
-// for replay prevention.
-func (database *Database) RecordSpentHashcash(
-	ctx context.Context,
-	stampHash string,
-) error {
-	_, err := database.conn.ExecContext(ctx,
-		`INSERT OR IGNORE INTO spent_hashcash
-		 (stamp_hash, created_at)
-		 VALUES (?, ?)`,
-		stampHash, time.Now())
-	if err != nil {
-		return fmt.Errorf(
-			"record spent hashcash: %w", err,
-		)
-	}
-
-	return nil
-}
-
-// IsHashcashSpent checks whether a hashcash stamp hash
-// has already been used.
-func (database *Database) IsHashcashSpent(
-	ctx context.Context,
-	stampHash string,
-) (bool, error) {
-	var count int
-
-	err := database.conn.QueryRowContext(ctx,
-		`SELECT COUNT(*) FROM spent_hashcash
-		 WHERE stamp_hash = ?`,
-		stampHash,
-	).Scan(&count)
-	if err != nil {
-		return false, fmt.Errorf(
-			"check spent hashcash: %w", err,
-		)
-	}
-
-	return count > 0, nil
-}
-
-// PruneSpentHashcash deletes spent hashcash tokens older
-// than the cutoff and returns the number of rows removed.
-func (database *Database) PruneSpentHashcash(
-	ctx context.Context,
-	cutoff time.Time,
-) (int64, error) {
-	res, err := database.conn.ExecContext(ctx,
-		"DELETE FROM spent_hashcash WHERE created_at < ?",
-		cutoff,
-	)
-	if err != nil {
-		return 0, fmt.Errorf(
-			"prune spent hashcash: %w", err,
-		)
-	}
-
-	deleted, _ := res.RowsAffected()
-
-	return deleted, nil
-}

internal/db/queries_test.go

@@ -34,7 +34,7 @@ func TestCreateSession(t *testing.T) {
 	ctx := t.Context()
 
 	sessionID, _, token, err := database.CreateSession(
-		ctx, "alice", "", "", "",
+		ctx, "alice",
 	)
 	if err != nil {
 		t.Fatal(err)
@@ -45,7 +45,7 @@ func TestCreateSession(t *testing.T) {
 	}
 
 	_, _, dupToken, dupErr := database.CreateSession(
-		ctx, "alice", "", "", "",
+		ctx, "alice",
 	)
 	if dupErr == nil {
 		t.Fatal("expected error for duplicate nick")
@@ -54,249 +54,13 @@ func TestCreateSession(t *testing.T) {
 	_ = dupToken
 }
 
-// assertSessionHostInfo creates a session and verifies
-// the stored username and hostname match expectations.
-func assertSessionHostInfo(
-	t *testing.T,
-	database *db.Database,
-	nick, inputUser, inputHost,
-	expectUser, expectHost string,
-) {
-	t.Helper()
-
-	sessionID, _, _, err := database.CreateSession(
-		t.Context(), nick, inputUser, inputHost, "",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	info, err := database.GetSessionHostInfo(
-		t.Context(), sessionID,
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if info.Username != expectUser {
-		t.Fatalf(
-			"expected username %s, got %s",
-			expectUser, info.Username,
-		)
-	}
-
-	if info.Hostname != expectHost {
-		t.Fatalf(
-			"expected hostname %s, got %s",
-			expectHost, info.Hostname,
-		)
-	}
-}
-
-func TestCreateSessionWithUserHost(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-
-	assertSessionHostInfo(
-		t, database,
-		"hostuser", "myident", "example.com",
-		"myident", "example.com",
-	)
-}
-
-func TestCreateSessionDefaultUsername(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-
-	// Empty username defaults to nick.
-	assertSessionHostInfo(
-		t, database,
-		"defaultu", "", "host.local",
-		"defaultu", "host.local",
-	)
-}
-
-func TestCreateSessionStoresIP(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-	ctx := t.Context()
-
-	sessionID, clientID, _, err := database.CreateSession(
-		ctx, "ipuser", "ident", "host.example.com",
-		"192.168.1.42",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	info, err := database.GetSessionHostInfo(
-		ctx, sessionID,
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if info.IP != "192.168.1.42" {
-		t.Fatalf(
-			"expected session IP 192.168.1.42, got %s",
-			info.IP,
-		)
-	}
-
-	clientInfo, err := database.GetClientHostInfo(
-		ctx, clientID,
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if clientInfo.IP != "192.168.1.42" {
-		t.Fatalf(
-			"expected client IP 192.168.1.42, got %s",
-			clientInfo.IP,
-		)
-	}
-
-	if clientInfo.Hostname != "host.example.com" {
-		t.Fatalf(
-			"expected client hostname host.example.com, got %s",
-			clientInfo.Hostname,
-		)
-	}
-}
-
-func TestGetClientHostInfoNotFound(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-
-	_, err := database.GetClientHostInfo(
-		t.Context(), 99999,
-	)
-	if err == nil {
-		t.Fatal("expected error for nonexistent client")
-	}
-}
-
-func TestGetSessionHostInfoNotFound(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-
-	_, err := database.GetSessionHostInfo(
-		t.Context(), 99999,
-	)
-	if err == nil {
-		t.Fatal("expected error for nonexistent session")
-	}
-}
-
-func TestFormatHostmask(t *testing.T) {
-	t.Parallel()
-
-	result := db.FormatHostmask(
-		"nick", "user", "host.com",
-	)
-	if result != "nick!user@host.com" {
-		t.Fatalf(
-			"expected nick!user@host.com, got %s",
-			result,
-		)
-	}
-}
-
-func TestFormatHostmaskDefaults(t *testing.T) {
-	t.Parallel()
-
-	result := db.FormatHostmask("nick", "", "")
-	if result != "nick!nick@*" {
-		t.Fatalf(
-			"expected nick!nick@*, got %s",
-			result,
-		)
-	}
-}
-
-func TestMemberInfoHostmask(t *testing.T) {
-	t.Parallel()
-
-	member := &db.MemberInfo{ //nolint:exhaustruct // test only uses hostmask fields
-		Nick:     "alice",
-		Username: "aliceident",
-		Hostname: "alice.example.com",
-	}
-
-	hostmask := member.Hostmask()
-	expected := "alice!aliceident@alice.example.com"
-
-	if hostmask != expected {
-		t.Fatalf(
-			"expected %s, got %s", expected, hostmask,
-		)
-	}
-}
-
-func TestChannelMembersIncludeUserHost(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-	ctx := t.Context()
-
-	sid, _, _, err := database.CreateSession(
-		ctx, "memuser", "myuser", "myhost.net", "",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	chID, err := database.GetOrCreateChannel(
-		ctx, "#hostchan",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	err = database.JoinChannel(ctx, chID, sid)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	members, err := database.ChannelMembers(ctx, chID)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if len(members) != 1 {
-		t.Fatalf(
-			"expected 1 member, got %d", len(members),
-		)
-	}
-
-	if members[0].Username != "myuser" {
-		t.Fatalf(
-			"expected username myuser, got %s",
-			members[0].Username,
-		)
-	}
-
-	if members[0].Hostname != "myhost.net" {
-		t.Fatalf(
-			"expected hostname myhost.net, got %s",
-			members[0].Hostname,
-		)
-	}
-}
-
 func TestGetSessionByToken(t *testing.T) {
 	t.Parallel()
 
 	database := setupTestDB(t)
 	ctx := t.Context()
 
-	_, _, token, err := database.CreateSession(ctx, "bob", "", "", "")
+	_, _, token, err := database.CreateSession(ctx, "bob")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -329,7 +93,7 @@ func TestGetSessionByNick(t *testing.T) {
 	ctx := t.Context()
 
 	charlieID, charlieClientID, charlieToken, err :=
-		database.CreateSession(ctx, "charlie", "", "", "")
+		database.CreateSession(ctx, "charlie")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -386,7 +150,7 @@ func TestJoinAndPart(t *testing.T) {
 	database := setupTestDB(t)
 	ctx := t.Context()
 
-	sid, _, _, err := database.CreateSession(ctx, "user1", "", "", "")
+	sid, _, _, err := database.CreateSession(ctx, "user1")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -435,7 +199,7 @@ func TestDeleteChannelIfEmpty(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	sid, _, _, err := database.CreateSession(ctx, "temp", "", "", "")
+	sid, _, _, err := database.CreateSession(ctx, "temp")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -470,7 +234,7 @@ func createSessionWithChannels(
 
 	ctx := t.Context()
 
-	sid, _, _, err := database.CreateSession(ctx, nick, "", "", "")
+	sid, _, _, err := database.CreateSession(ctx, nick)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -553,7 +317,7 @@ func TestChangeNick(t *testing.T) {
 	ctx := t.Context()
 
 	sid, _, token, err := database.CreateSession(
-		ctx, "old", "", "", "",
+		ctx, "old",
 	)
 	if err != nil {
 		t.Fatal(err)
@@ -637,7 +401,7 @@ func TestPollMessages(t *testing.T) {
 	ctx := t.Context()
 
 	sid, _, token, err := database.CreateSession(
-		ctx, "poller", "", "", "",
+		ctx, "poller",
 	)
 	if err != nil {
 		t.Fatal(err)
@@ -744,7 +508,7 @@ func TestDeleteSession(t *testing.T) {
 	ctx := t.Context()
 
 	sid, _, _, err := database.CreateSession(
-		ctx, "deleteme", "", "", "",
+		ctx, "deleteme",
 	)
 	if err != nil {
 		t.Fatal(err)
@@ -784,12 +548,12 @@ func TestChannelMembers(t *testing.T) {
 	database := setupTestDB(t)
 	ctx := t.Context()
 
-	sid1, _, _, err := database.CreateSession(ctx, "m1", "", "", "")
+	sid1, _, _, err := database.CreateSession(ctx, "m1")
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	sid2, _, _, err := database.CreateSession(ctx, "m2", "", "", "")
+	sid2, _, _, err := database.CreateSession(ctx, "m2")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -847,7 +611,7 @@ func TestEnqueueToClient(t *testing.T) {
 	ctx := t.Context()
 
 	_, _, token, err := database.CreateSession(
-		ctx, "enqclient", "", "", "",
+		ctx, "enqclient",
 	)
 	if err != nil {
 		t.Fatal(err)
@@ -887,133 +651,3 @@ func TestEnqueueToClient(t *testing.T) {
 		t.Fatalf("expected 1, got %d", len(msgs))
 	}
 }
-
-func TestSetAndCheckSessionOper(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-	ctx := t.Context()
-
-	sessionID, _, _, err := database.CreateSession(
-		ctx, "opernick", "", "", "",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Initially not oper.
-	isOper, err := database.IsSessionOper(ctx, sessionID)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if isOper {
-		t.Fatal("expected session not to be oper")
-	}
-
-	// Set oper.
-	err = database.SetSessionOper(ctx, sessionID, true)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	isOper, err = database.IsSessionOper(ctx, sessionID)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if !isOper {
-		t.Fatal("expected session to be oper")
-	}
-
-	// Unset oper.
-	err = database.SetSessionOper(ctx, sessionID, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	isOper, err = database.IsSessionOper(ctx, sessionID)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if isOper {
-		t.Fatal("expected session not to be oper")
-	}
-}
-
-func TestGetLatestClientForSession(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-	ctx := t.Context()
-
-	sessionID, _, _, err := database.CreateSession(
-		ctx, "clientnick", "", "", "10.0.0.1",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	clientInfo, err := database.GetLatestClientForSession(
-		ctx, sessionID,
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if clientInfo.IP != "10.0.0.1" {
-		t.Fatalf(
-			"expected IP 10.0.0.1, got %s",
-			clientInfo.IP,
-		)
-	}
-}
-
-func TestGetOperCount(t *testing.T) {
-	t.Parallel()
-
-	database := setupTestDB(t)
-	ctx := t.Context()
-
-	// Create two sessions.
-	sid1, _, _, err := database.CreateSession(
-		ctx, "user1", "", "", "",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	sid2, _, _, err := database.CreateSession(
-		ctx, "user2", "", "", "",
-	)
-	_ = sid2
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Initially zero opers.
-	count, err := database.GetOperCount(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if count != 0 {
-		t.Fatalf("expected 0 opers, got %d", count)
-	}
-
-	// Set one as oper.
-	err = database.SetSessionOper(ctx, sid1, true)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	count, err = database.GetOperCount(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if count != 1 {
-		t.Fatalf("expected 1 oper, got %d", count)
-	}
-}

internal/db/schema/001_initial.sql

@@ -6,13 +6,8 @@ CREATE TABLE IF NOT EXISTS sessions (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
     uuid TEXT NOT NULL UNIQUE,
     nick TEXT NOT NULL UNIQUE,
-    username TEXT NOT NULL DEFAULT '',
-    hostname TEXT NOT NULL DEFAULT '',
-    ip TEXT NOT NULL DEFAULT '',
-    is_oper INTEGER NOT NULL DEFAULT 0,
     password_hash TEXT NOT NULL DEFAULT '',
     signing_key TEXT NOT NULL DEFAULT '',
-    away_message TEXT NOT NULL DEFAULT '',
     created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
     last_seen DATETIME DEFAULT CURRENT_TIMESTAMP
 );
@@ -24,8 +19,6 @@ CREATE TABLE IF NOT EXISTS clients (
     uuid TEXT NOT NULL UNIQUE,
     session_id INTEGER NOT NULL REFERENCES sessions(id) ON DELETE CASCADE,
     token TEXT NOT NULL UNIQUE,
-    ip TEXT NOT NULL DEFAULT '',
-    hostname TEXT NOT NULL DEFAULT '',
     created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
     last_seen DATETIME DEFAULT CURRENT_TIMESTAMP
 );
@@ -37,9 +30,6 @@ CREATE TABLE IF NOT EXISTS channels (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
     name TEXT NOT NULL UNIQUE,
     topic TEXT NOT NULL DEFAULT '',
-    topic_set_by TEXT NOT NULL DEFAULT '',
-    topic_set_at DATETIME,
-    hashcash_bits INTEGER NOT NULL DEFAULT 0,
     created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
     updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
 );
@@ -68,14 +58,6 @@ CREATE TABLE IF NOT EXISTS messages (
 CREATE INDEX IF NOT EXISTS idx_messages_to_id ON messages(msg_to, id);
 CREATE INDEX IF NOT EXISTS idx_messages_created ON messages(created_at);
 
--- Spent hashcash tokens for replay prevention (1-year TTL)
-CREATE TABLE IF NOT EXISTS spent_hashcash (
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    stamp_hash TEXT NOT NULL UNIQUE,
-    created_at DATETIME DEFAULT CURRENT_TIMESTAMP
-);
-CREATE INDEX IF NOT EXISTS idx_spent_hashcash_created ON spent_hashcash(created_at);
-
 -- Per-client message queues for fan-out delivery
 CREATE TABLE IF NOT EXISTS client_queues (
     id INTEGER PRIMARY KEY AUTOINCREMENT,

internal/handlers/auth.go

@@ -4,8 +4,6 @@ import (
 	"encoding/json"
 	"net/http"
 	"strings"
-
-	"git.eeqj.de/sneak/neoirc/internal/db"
 )
 
 const minPasswordLength = 8
@@ -30,7 +28,6 @@ func (hdlr *Handlers) handleRegister(
 ) {
 	type registerRequest struct {
 		Nick     string `json:"nick"`
-		Username string `json:"username,omitempty"`
 		Password string `json:"password"`
 	}
 
@@ -59,20 +56,6 @@ func (hdlr *Handlers) handleRegister(
 		return
 	}
 
-	username := resolveUsername(
-		payload.Username, payload.Nick,
-	)
-
-	if !validUsernameRe.MatchString(username) {
-		hdlr.respondError(
-			writer, request,
-			"invalid username format",
-			http.StatusBadRequest,
-		)
-
-		return
-	}
-
 	if len(payload.Password) < minPasswordLength {
 		hdlr.respondError(
 			writer, request,
@@ -83,27 +66,11 @@ func (hdlr *Handlers) handleRegister(
 		return
 	}
 
-	hdlr.executeRegister(
-		writer, request,
-		payload.Nick, payload.Password, username,
-	)
-}
-
-func (hdlr *Handlers) executeRegister(
-	writer http.ResponseWriter,
-	request *http.Request,
-	nick, password, username string,
-) {
-	remoteIP := clientIP(request)
-
-	hostname := resolveHostname(
-		request.Context(), remoteIP,
-	)
-
 	sessionID, clientID, token, err :=
 		hdlr.params.Database.RegisterUser(
 			request.Context(),
-			nick, password, username, hostname, remoteIP,
+			payload.Nick,
+			payload.Password,
 		)
 	if err != nil {
 		hdlr.handleRegisterError(
@@ -113,14 +80,11 @@ func (hdlr *Handlers) executeRegister(
 		return
 	}
 
-	hdlr.stats.IncrSessions()
+	hdlr.deliverMOTD(request, clientID, sessionID, payload.Nick)
-	hdlr.stats.IncrConnections()
-
-	hdlr.deliverMOTD(request, clientID, sessionID, nick)
 
 	hdlr.respondJSON(writer, request, map[string]any{
 		"id":    sessionID,
-		"nick":  nick,
+		"nick":  payload.Nick,
 		"token": token,
 	}, http.StatusCreated)
 }
@@ -130,7 +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",
@@ -198,18 +162,11 @@ func (hdlr *Handlers) handleLogin(
 		return
 	}
 
-	remoteIP := clientIP(request)
-
-	hostname := resolveHostname(
-		request.Context(), remoteIP,
-	)
-
 	sessionID, clientID, token, err :=
 		hdlr.params.Database.LoginUser(
 			request.Context(),
 			payload.Nick,
 			payload.Password,
-			remoteIP, hostname,
 		)
 	if err != nil {
 		hdlr.respondError(
@@ -221,8 +178,6 @@ func (hdlr *Handlers) handleLogin(
 		return
 	}
 
-	hdlr.stats.IncrConnections()
-
 	hdlr.deliverMOTD(
 		request, clientID, sessionID, payload.Nick,
 	)

internal/handlers/handlers.go

@@ -13,10 +13,8 @@ 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"
-	"git.eeqj.de/sneak/neoirc/internal/stats"
 	"go.uber.org/fx"
 )
 
@@ -31,26 +29,17 @@ type Params struct {
 	Config      *config.Config
 	Database    *db.Database
 	Healthcheck *healthcheck.Healthcheck
-	Stats       *stats.Tracker
 }
 
 const defaultIdleTimeout = 30 * 24 * time.Hour
 
-// spentHashcashTTL is how long spent hashcash tokens are
-// retained for replay prevention. Per issue requirements,
-// this is 1 year.
-const spentHashcashTTL = 365 * 24 * time.Hour
-
 // Handlers manages HTTP request handling.
 type Handlers struct {
-	params          *Params
+	params        *Params
-	log             *slog.Logger
+	log           *slog.Logger
-	hc              *healthcheck.Healthcheck
+	hc            *healthcheck.Healthcheck
-	broker          *broker.Broker
+	broker        *broker.Broker
-	hashcashVal     *hashcash.Validator
+	cancelCleanup context.CancelFunc
-	channelHashcash *hashcash.ChannelValidator
-	stats           *stats.Tracker
-	cancelCleanup   context.CancelFunc
 }
 
 // New creates a new Handlers instance.
@@ -58,19 +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,
+		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),
-		channelHashcash: hashcash.NewChannelValidator(),
-		stats:           params.Stats,
 	}
 
 	lifecycle.Append(fx.Hook{
@@ -223,61 +204,36 @@ func (hdlr *Handlers) runCleanup(
 	hdlr.pruneQueuesAndMessages(ctx)
 }
 
-// parseDurationConfig parses a Go duration string,
+// pruneQueuesAndMessages removes old client_queues entries
-// returning zero on empty input and logging on error.
+// per QUEUE_MAX_AGE and prunes messages per MESSAGE_MAX_AGE.
-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(
+	queueMaxAge := hdlr.params.Config.QueueMaxAge
-		"QUEUE_MAX_AGE",
-		hdlr.params.Config.QueueMaxAge,
-	)
 	if queueMaxAge > 0 {
-		queueCutoff := time.Now().Add(-queueMaxAge)
+		queueCutoff := time.Now().Add(
+			-time.Duration(queueMaxAge) * time.Second,
+		)
 
 		pruned, err := hdlr.params.Database.
 			PruneOldQueueEntries(ctx, queueCutoff)
 		if err != nil {
 			hdlr.log.Error(
-				"client output queue pruning failed", "error", err,
+				"queue pruning failed", "error", err,
 			)
 		} else if pruned > 0 {
 			hdlr.log.Info(
-				"pruned old client output queue entries",
+				"pruned old queue entries",
 				"deleted", pruned,
 			)
 		}
 	}
 
-	messageMaxAge := hdlr.parseDurationConfig(
+	messageMaxAge := hdlr.params.Config.MessageMaxAge
-		"MESSAGE_MAX_AGE",
-		hdlr.params.Config.MessageMaxAge,
-	)
 	if messageMaxAge > 0 {
-		msgCutoff := time.Now().Add(-messageMaxAge)
+		msgCutoff := time.Now().Add(
+			-time.Duration(messageMaxAge) * time.Second,
+		)
 
 		pruned, err := hdlr.params.Database.
 			PruneOldMessages(ctx, msgCutoff)
@@ -292,20 +248,4 @@ func (hdlr *Handlers) pruneQueuesAndMessages(
 			)
 		}
 	}
-
-	// Prune spent hashcash tokens older than 1 year.
-	hashcashCutoff := time.Now().Add(-spentHashcashTTL)
-
-	pruned, err := hdlr.params.Database.
-		PruneSpentHashcash(ctx, hashcashCutoff)
-	if err != nil {
-		hdlr.log.Error(
-			"spent hashcash pruning failed", "error", err,
-		)
-	} else if pruned > 0 {
-		hdlr.log.Info(
-			"pruned spent hashcash tokens",
-			"deleted", pruned,
-		)
-	}
 }

internal/handlers/healthcheck.go

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

internal/hashcash/channel.go

@@ -1,186 +0,0 @@
-package hashcash
-
-import (
-	"crypto/sha256"
-	"encoding/hex"
-	"errors"
-	"fmt"
-	"strconv"
-	"strings"
-	"time"
-)
-
-var (
-	errBodyHashMismatch = errors.New(
-		"body hash mismatch",
-	)
-	errBodyHashMissing = errors.New(
-		"body hash missing",
-	)
-)
-
-// ChannelValidator checks hashcash stamps for
-// per-channel PRIVMSG validation. It verifies that
-// stamps are bound to a specific channel and message
-// body. Replay prevention is handled externally via
-// the database spent_hashcash table for persistence
-// across server restarts (1-year TTL).
-type ChannelValidator struct{}
-
-// NewChannelValidator creates a ChannelValidator.
-func NewChannelValidator() *ChannelValidator {
-	return &ChannelValidator{}
-}
-
-// BodyHash computes the hex-encoded SHA-256 hash of a
-// message body for use in hashcash stamp validation.
-func BodyHash(body []byte) string {
-	hash := sha256.Sum256(body)
-
-	return hex.EncodeToString(hash[:])
-}
-
-// ValidateStamp checks a channel hashcash stamp. It
-// verifies the stamp format, difficulty, date, channel
-// binding, body hash binding, and proof-of-work. Replay
-// detection is NOT performed here — callers must check
-// the spent_hashcash table separately.
-//
-// Stamp format: 1:bits:YYMMDD:channel:bodyhash:counter.
-func (cv *ChannelValidator) ValidateStamp(
-	stamp string,
-	requiredBits int,
-	channel string,
-	bodyHash string,
-) 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]
-	stampBodyHash := parts[4]
-
-	headerErr := validateChannelHeader(
-		version, bitsStr, resource,
-		requiredBits, channel,
-	)
-	if headerErr != nil {
-		return headerErr
-	}
-
-	stampTime, parseErr := parseStampDate(dateStr)
-	if parseErr != nil {
-		return parseErr
-	}
-
-	timeErr := validateTime(stampTime)
-	if timeErr != nil {
-		return timeErr
-	}
-
-	bodyErr := validateBodyHash(
-		stampBodyHash, bodyHash,
-	)
-	if bodyErr != nil {
-		return bodyErr
-	}
-
-	return validateProof(stamp, requiredBits)
-}
-
-// StampHash returns a deterministic hash of a stamp
-// string for use as a spent-token key.
-func StampHash(stamp string) string {
-	hash := sha256.Sum256([]byte(stamp))
-
-	return hex.EncodeToString(hash[:])
-}
-
-func validateChannelHeader(
-	version, bitsStr, resource string,
-	requiredBits int,
-	channel string,
-) 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 != channel {
-		return fmt.Errorf(
-			"%w: got %q, want %q",
-			errWrongResource, resource, channel,
-		)
-	}
-
-	return nil
-}
-
-func validateBodyHash(
-	stampBodyHash, expectedBodyHash string,
-) error {
-	if stampBodyHash == "" {
-		return errBodyHashMissing
-	}
-
-	if stampBodyHash != expectedBodyHash {
-		return fmt.Errorf(
-			"%w: got %q, want %q",
-			errBodyHashMismatch,
-			stampBodyHash, expectedBodyHash,
-		)
-	}
-
-	return nil
-}
-
-// MintChannelStamp computes a channel hashcash stamp
-// with the given difficulty, channel name, and body hash.
-// This is intended for clients to generate stamps before
-// sending PRIVMSG to hashcash-protected channels.
-//
-// Stamp format: 1:bits:YYMMDD:channel:bodyhash:counter.
-func MintChannelStamp(
-	bits int,
-	channel string,
-	bodyHash string,
-) string {
-	date := time.Now().UTC().Format(dateFormatShort)
-	prefix := fmt.Sprintf(
-		"1:%d:%s:%s:%s:",
-		bits, date, channel, bodyHash,
-	)
-
-	counter := uint64(0)
-
-	for {
-		stamp := prefix + strconv.FormatUint(counter, 16)
-		hash := sha256.Sum256([]byte(stamp))
-
-		if hasLeadingZeroBits(hash[:], bits) {
-			return stamp
-		}
-
-		counter++
-	}
-}

internal/hashcash/channel_test.go

@@ -1,244 +0,0 @@
-package hashcash_test
-
-import (
-	"crypto/sha256"
-	"encoding/hex"
-	"testing"
-
-	"git.eeqj.de/sneak/neoirc/internal/hashcash"
-)
-
-const (
-	testChannel  = "#general"
-	testBodyText = `["hello world"]`
-)
-
-func testBodyHash() string {
-	hash := sha256.Sum256([]byte(testBodyText))
-
-	return hex.EncodeToString(hash[:])
-}
-
-func TestChannelValidateHappyPath(t *testing.T) {
-	t.Parallel()
-
-	validator := hashcash.NewChannelValidator()
-	bodyHash := testBodyHash()
-
-	stamp := hashcash.MintChannelStamp(
-		testBits, testChannel, bodyHash,
-	)
-
-	err := validator.ValidateStamp(
-		stamp, testBits, testChannel, bodyHash,
-	)
-	if err != nil {
-		t.Fatalf("valid channel stamp rejected: %v", err)
-	}
-}
-
-func TestChannelValidateWrongChannel(t *testing.T) {
-	t.Parallel()
-
-	validator := hashcash.NewChannelValidator()
-	bodyHash := testBodyHash()
-
-	stamp := hashcash.MintChannelStamp(
-		testBits, testChannel, bodyHash,
-	)
-
-	err := validator.ValidateStamp(
-		stamp, testBits, "#other", bodyHash,
-	)
-	if err == nil {
-		t.Fatal("expected channel mismatch error")
-	}
-}
-
-func TestChannelValidateWrongBodyHash(t *testing.T) {
-	t.Parallel()
-
-	validator := hashcash.NewChannelValidator()
-	bodyHash := testBodyHash()
-
-	stamp := hashcash.MintChannelStamp(
-		testBits, testChannel, bodyHash,
-	)
-
-	wrongHash := sha256.Sum256([]byte("different body"))
-	wrongBodyHash := hex.EncodeToString(wrongHash[:])
-
-	err := validator.ValidateStamp(
-		stamp, testBits, testChannel, wrongBodyHash,
-	)
-	if err == nil {
-		t.Fatal("expected body hash mismatch error")
-	}
-}
-
-func TestChannelValidateInsufficientBits(t *testing.T) {
-	t.Parallel()
-
-	validator := hashcash.NewChannelValidator()
-	bodyHash := testBodyHash()
-
-	// Mint with 2 bits but require 4.
-	stamp := hashcash.MintChannelStamp(
-		testBits, testChannel, bodyHash,
-	)
-
-	err := validator.ValidateStamp(
-		stamp, 4, testChannel, bodyHash,
-	)
-	if err == nil {
-		t.Fatal("expected insufficient bits error")
-	}
-}
-
-func TestChannelValidateZeroBitsSkips(t *testing.T) {
-	t.Parallel()
-
-	validator := hashcash.NewChannelValidator()
-
-	err := validator.ValidateStamp(
-		"garbage", 0, "#ch", "abc",
-	)
-	if err != nil {
-		t.Fatalf("zero bits should skip: %v", err)
-	}
-}
-
-func TestChannelValidateBadFormat(t *testing.T) {
-	t.Parallel()
-
-	validator := hashcash.NewChannelValidator()
-
-	err := validator.ValidateStamp(
-		"not:valid", testBits, testChannel, "abc",
-	)
-	if err == nil {
-		t.Fatal("expected bad format error")
-	}
-}
-
-func TestChannelValidateBadVersion(t *testing.T) {
-	t.Parallel()
-
-	validator := hashcash.NewChannelValidator()
-	bodyHash := testBodyHash()
-
-	stamp := "2:2:260317:#general:" + bodyHash + ":counter"
-
-	err := validator.ValidateStamp(
-		stamp, testBits, testChannel, bodyHash,
-	)
-	if err == nil {
-		t.Fatal("expected bad version error")
-	}
-}
-
-func TestChannelValidateExpiredStamp(t *testing.T) {
-	t.Parallel()
-
-	validator := hashcash.NewChannelValidator()
-	bodyHash := testBodyHash()
-
-	// Mint with a very old date by manually constructing.
-	stamp := mintStampWithDate(
-		t, testBits, testChannel, "200101",
-	)
-
-	err := validator.ValidateStamp(
-		stamp, testBits, testChannel, bodyHash,
-	)
-	if err == nil {
-		t.Fatal("expected expired stamp error")
-	}
-}
-
-func TestChannelValidateMissingBodyHash(t *testing.T) {
-	t.Parallel()
-
-	validator := hashcash.NewChannelValidator()
-	bodyHash := testBodyHash()
-
-	// Construct a stamp with empty body hash field.
-	stamp := mintStampWithDate(
-		t, testBits, testChannel, todayDate(),
-	)
-
-	// This uses the session-style stamp which has empty
-	// ext field — body hash is missing.
-	err := validator.ValidateStamp(
-		stamp, testBits, testChannel, bodyHash,
-	)
-	if err == nil {
-		t.Fatal("expected missing body hash error")
-	}
-}
-
-func TestBodyHash(t *testing.T) {
-	t.Parallel()
-
-	body := []byte(`["hello world"]`)
-	bodyHash := hashcash.BodyHash(body)
-
-	if len(bodyHash) != 64 {
-		t.Fatalf(
-			"expected 64-char hex hash, got %d",
-			len(bodyHash),
-		)
-	}
-
-	// Same input should produce same hash.
-	bodyHash2 := hashcash.BodyHash(body)
-	if bodyHash != bodyHash2 {
-		t.Fatal("body hash not deterministic")
-	}
-
-	// Different input should produce different hash.
-	bodyHash3 := hashcash.BodyHash([]byte("different"))
-	if bodyHash == bodyHash3 {
-		t.Fatal("different inputs produced same hash")
-	}
-}
-
-func TestStampHash(t *testing.T) {
-	t.Parallel()
-
-	hash1 := hashcash.StampHash("stamp1")
-	hash2 := hashcash.StampHash("stamp2")
-
-	if hash1 == hash2 {
-		t.Fatal("different stamps produced same hash")
-	}
-
-	// Same input should be deterministic.
-	hash1b := hashcash.StampHash("stamp1")
-	if hash1 != hash1b {
-		t.Fatal("stamp hash not deterministic")
-	}
-}
-
-func TestMintChannelStamp(t *testing.T) {
-	t.Parallel()
-
-	bodyHash := testBodyHash()
-	stamp := hashcash.MintChannelStamp(
-		testBits, testChannel, bodyHash,
-	)
-
-	if stamp == "" {
-		t.Fatal("expected non-empty stamp")
-	}
-
-	// Validate the minted stamp.
-	validator := hashcash.NewChannelValidator()
-
-	err := validator.ValidateStamp(
-		stamp, testBits, testChannel, bodyHash,
-	)
-	if err != nil {
-		t.Fatalf("minted stamp failed validation: %v", err)
-	}
-}

internal/hashcash/hashcash.go

@@ -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)
-		}
-	}
-}

internal/hashcash/hashcash_test.go

@@ -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,
-		)
-	}
-}

internal/healthcheck/healthcheck.go

@@ -10,7 +10,6 @@ import (
 	"git.eeqj.de/sneak/neoirc/internal/db"
 	"git.eeqj.de/sneak/neoirc/internal/globals"
 	"git.eeqj.de/sneak/neoirc/internal/logger"
-	"git.eeqj.de/sneak/neoirc/internal/stats"
 	"go.uber.org/fx"
 )
 
@@ -22,7 +21,6 @@ type Params struct {
 	Config   *config.Config
 	Logger   *logger.Logger
 	Database *db.Database
-	Stats    *stats.Tracker
 }
 
 // Healthcheck tracks server uptime and provides health status.
@@ -66,22 +64,11 @@ type Response struct {
 	Version       string `json:"version"`
 	Appname       string `json:"appname"`
 	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.
-func (hcheck *Healthcheck) Healthcheck(
+func (hcheck *Healthcheck) Healthcheck() *Response {
-	ctx context.Context,
+	return &Response{
-) *Response {
-	resp := &Response{
 		Status:        "ok",
 		Now:           time.Now().UTC().Format(time.RFC3339Nano),
 		UptimeSeconds: int64(hcheck.uptime().Seconds()),
@@ -89,64 +76,6 @@ func (hcheck *Healthcheck) Healthcheck(
 		Appname:       hcheck.params.Globals.Appname,
 		Version:       hcheck.params.Globals.Version,
 		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
 	}
 }
 

internal/irc/commands.go

@@ -2,7 +2,6 @@ package irc
 
 // IRC command names (RFC 1459 / RFC 2812).
 const (
-	CmdAway    = "AWAY"
 	CmdJoin    = "JOIN"
 	CmdList    = "LIST"
 	CmdLusers  = "LUSERS"
@@ -11,7 +10,6 @@ const (
 	CmdNames   = "NAMES"
 	CmdNick    = "NICK"
 	CmdNotice  = "NOTICE"
-	CmdOper    = "OPER"
 	CmdPart    = "PART"
 	CmdPing    = "PING"
 	CmdPong    = "PONG"

internal/irc/numerics.go

@@ -0,0 +1,150 @@
+// 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]
+}

internal/middleware/middleware.go

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

internal/server/routes.go

@@ -8,8 +8,8 @@ import (
 	"git.eeqj.de/sneak/neoirc/web"
 
 	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/spf13/viper"
 )

internal/server/server.go

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

internal/stats/stats.go

@@ -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()
-}

internal/stats/stats_test.go

@@ -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(),
-		)
-	}
-}

pkg/irc/numerics.go

@@ -1,393 +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
-
-import (
-	"errors"
-	"fmt"
-)
-
-// IRCMessageType represents an IRC numeric reply or error code.
-type IRCMessageType int //nolint:revive // Name requested by project owner.
-
-// Name returns the standard IRC name for this numeric code
-// (e.g., IRCMessageType(252).Name() returns "RPL_LUSEROP").
-// Returns an empty string if the code is unknown.
-func (t IRCMessageType) Name() string {
-	return names[t]
-}
-
-// String returns the name and numeric code in angle brackets
-// (e.g., IRCMessageType(252).String() returns "RPL_LUSEROP <252>").
-// If the code is unknown, returns "UNKNOWN <NNN>".
-func (t IRCMessageType) String() string {
-	n := names[t]
-	if n == "" {
-		n = "UNKNOWN"
-	}
-
-	return fmt.Sprintf("%s <%03d>", n, int(t))
-}
-
-// Code returns the three-digit zero-padded string representation
-// of the numeric code (e.g., IRCMessageType(252).Code() returns "252").
-func (t IRCMessageType) Code() string {
-	return fmt.Sprintf("%03d", int(t))
-}
-
-// Int returns the bare integer value of the numeric code.
-func (t IRCMessageType) Int() int {
-	return int(t)
-}
-
-// ErrUnknownNumeric is returned by FromInt when the numeric code is not recognized.
-var ErrUnknownNumeric = errors.New("unknown IRC numeric code")
-
-// FromInt converts an integer to an IRCMessageType, returning an error
-// if the numeric code is not a known IRC reply or error code.
-func FromInt(n int) (IRCMessageType, error) {
-	t := IRCMessageType(n)
-	if _, ok := names[t]; !ok {
-		return 0, fmt.Errorf("%w: %d", ErrUnknownNumeric, n)
-	}
-
-	return t, nil
-}
-
-// Connection registration replies (001-005).
-const (
-	RplWelcome  IRCMessageType = 1
-	RplYourHost IRCMessageType = 2
-	RplCreated  IRCMessageType = 3
-	RplMyInfo   IRCMessageType = 4
-	RplBounce   IRCMessageType = 5 // RFC 2812; also known as RPL_ISUPPORT in practice
-	RplIsupport IRCMessageType = 5 // De-facto standard (same numeric as RplBounce)
-)
-
-// Command responses (200-399).
-const (
-	// RFC 2812 trace/stats/links replies (200-219).
-	RplTraceLink       IRCMessageType = 200
-	RplTraceConnecting IRCMessageType = 201
-	RplTraceHandshake  IRCMessageType = 202
-	RplTraceUnknown    IRCMessageType = 203
-	RplTraceOperator   IRCMessageType = 204
-	RplTraceUser       IRCMessageType = 205
-	RplTraceServer     IRCMessageType = 206
-	RplTraceService    IRCMessageType = 207
-	RplTraceNewType    IRCMessageType = 208
-	RplTraceClass      IRCMessageType = 209
-	RplStatsLinkInfo   IRCMessageType = 211
-	RplStatsCommands   IRCMessageType = 212
-	RplStatsCLine      IRCMessageType = 213
-	RplStatsNLine      IRCMessageType = 214
-	RplStatsILine      IRCMessageType = 215
-	RplStatsKLine      IRCMessageType = 216
-	RplStatsQLine      IRCMessageType = 217
-	RplStatsYLine      IRCMessageType = 218
-	RplEndOfStats      IRCMessageType = 219
-
-	RplUmodeIs      IRCMessageType = 221
-	RplServList     IRCMessageType = 234
-	RplServListEnd  IRCMessageType = 235
-	RplStatsLLine   IRCMessageType = 241
-	RplStatsUptime  IRCMessageType = 242
-	RplStatsOLine   IRCMessageType = 243
-	RplStatsHLine   IRCMessageType = 244
-	RplLuserClient  IRCMessageType = 251
-	RplLuserOp      IRCMessageType = 252
-	RplLuserUnknown IRCMessageType = 253
-
-	RplLuserChannels IRCMessageType = 254
-	RplLuserMe       IRCMessageType = 255
-	RplAdminMe       IRCMessageType = 256
-	RplAdminLoc1     IRCMessageType = 257
-	RplAdminLoc2     IRCMessageType = 258
-	RplAdminEmail    IRCMessageType = 259
-	RplTraceLog      IRCMessageType = 261
-	RplTraceEnd      IRCMessageType = 262
-	RplTryAgain      IRCMessageType = 263
-
-	RplAway          IRCMessageType = 301
-	RplUserHost      IRCMessageType = 302
-	RplIson          IRCMessageType = 303
-	RplUnaway        IRCMessageType = 305
-	RplNowAway       IRCMessageType = 306
-	RplWhoisUser     IRCMessageType = 311
-	RplWhoisServer   IRCMessageType = 312
-	RplWhoisOperator IRCMessageType = 313
-	RplWhoWasUser    IRCMessageType = 314
-	RplEndOfWho      IRCMessageType = 315
-	RplWhoisIdle     IRCMessageType = 317
-	RplEndOfWhois    IRCMessageType = 318
-	RplWhoisChannels IRCMessageType = 319
-	RplListStart     IRCMessageType = 321
-	RplList          IRCMessageType = 322
-	RplListEnd       IRCMessageType = 323
-	RplChannelModeIs IRCMessageType = 324
-
-	RplUniqOpIs        IRCMessageType = 325
-	RplCreationTime    IRCMessageType = 329
-	RplNoTopic         IRCMessageType = 331
-	RplTopic           IRCMessageType = 332
-	RplTopicWhoTime    IRCMessageType = 333
-	RplWhoisActually   IRCMessageType = 338
-	RplInviting        IRCMessageType = 341
-	RplSummoning       IRCMessageType = 342
-	RplInviteList      IRCMessageType = 346
-	RplEndOfInviteList IRCMessageType = 347
-	RplExceptList      IRCMessageType = 348
-	RplEndOfExceptList IRCMessageType = 349
-	RplVersion         IRCMessageType = 351
-	RplWhoReply        IRCMessageType = 352
-	RplNamReply        IRCMessageType = 353
-	RplLinks           IRCMessageType = 364
-	RplEndOfLinks      IRCMessageType = 365
-	RplEndOfNames      IRCMessageType = 366
-	RplBanList         IRCMessageType = 367
-	RplEndOfBanList    IRCMessageType = 368
-	RplEndOfWhowas     IRCMessageType = 369
-	RplInfo            IRCMessageType = 371
-	RplMotd            IRCMessageType = 372
-	RplEndOfInfo       IRCMessageType = 374
-	RplMotdStart       IRCMessageType = 375
-	RplEndOfMotd       IRCMessageType = 376
-	RplYoureOper       IRCMessageType = 381
-	RplRehashing       IRCMessageType = 382
-	RplYoureService    IRCMessageType = 383
-	RplTime            IRCMessageType = 391
-	RplUsersStart      IRCMessageType = 392
-	RplUsers           IRCMessageType = 393
-	RplEndOfUsers      IRCMessageType = 394
-	RplNoUsers         IRCMessageType = 395
-)
-
-// Error replies (400-599).
-const (
-	ErrNoSuchNick       IRCMessageType = 401
-	ErrNoSuchServer     IRCMessageType = 402
-	ErrNoSuchChannel    IRCMessageType = 403
-	ErrCannotSendToChan IRCMessageType = 404
-	ErrTooManyChannels  IRCMessageType = 405
-	ErrWasNoSuchNick    IRCMessageType = 406
-	ErrTooManyTargets   IRCMessageType = 407
-	ErrNoSuchService    IRCMessageType = 408
-	ErrNoOrigin         IRCMessageType = 409
-	ErrNoRecipient      IRCMessageType = 411
-	ErrNoTextToSend     IRCMessageType = 412
-	ErrNoTopLevel       IRCMessageType = 413
-	ErrWildTopLevel     IRCMessageType = 414
-	ErrBadMask          IRCMessageType = 415
-	ErrUnknownCommand   IRCMessageType = 421
-	ErrNoMotd           IRCMessageType = 422
-	ErrNoAdminInfo      IRCMessageType = 423
-	ErrFileError        IRCMessageType = 424
-	ErrNoNicknameGiven  IRCMessageType = 431
-	ErrErroneusNickname IRCMessageType = 432
-	ErrNicknameInUse    IRCMessageType = 433
-	ErrNickCollision    IRCMessageType = 436
-	ErrUnavailResource  IRCMessageType = 437
-
-	ErrUserNotInChannel  IRCMessageType = 441
-	ErrNotOnChannel      IRCMessageType = 442
-	ErrUserOnChannel     IRCMessageType = 443
-	ErrNoLogin           IRCMessageType = 444
-	ErrSummonDisabled    IRCMessageType = 445
-	ErrUsersDisabled     IRCMessageType = 446
-	ErrNotRegistered     IRCMessageType = 451
-	ErrNeedMoreParams    IRCMessageType = 461
-	ErrAlreadyRegistered IRCMessageType = 462
-	ErrNoPermForHost     IRCMessageType = 463
-	ErrPasswdMismatch    IRCMessageType = 464
-	ErrYoureBannedCreep  IRCMessageType = 465
-	ErrYouWillBeBanned   IRCMessageType = 466
-	ErrKeySet            IRCMessageType = 467
-	ErrChannelIsFull     IRCMessageType = 471
-	ErrUnknownMode       IRCMessageType = 472
-	ErrInviteOnlyChan    IRCMessageType = 473
-	ErrBannedFromChan    IRCMessageType = 474
-	ErrBadChannelKey     IRCMessageType = 475
-	ErrBadChanMask       IRCMessageType = 476
-	ErrNoChanModes       IRCMessageType = 477
-	ErrBanListFull       IRCMessageType = 478
-	ErrNoPrivileges      IRCMessageType = 481
-	ErrChanOpPrivsNeeded IRCMessageType = 482
-	ErrCantKillServer    IRCMessageType = 483
-	ErrRestricted        IRCMessageType = 484
-	ErrUniqOpPrivsNeeded IRCMessageType = 485
-	ErrNoOperHost        IRCMessageType = 491
-
-	ErrUmodeUnknownFlag IRCMessageType = 501
-	ErrUsersDoNotMatch  IRCMessageType = 502
-)
-
-// names maps numeric codes to their standard IRC names.
-//
-//nolint:gochecknoglobals
-var names = map[IRCMessageType]string{
-	RplWelcome:  "RPL_WELCOME",
-	RplYourHost: "RPL_YOURHOST",
-	RplCreated:  "RPL_CREATED",
-	RplMyInfo:   "RPL_MYINFO",
-	RplBounce:   "RPL_BOUNCE",
-
-	RplTraceLink:       "RPL_TRACELINK",
-	RplTraceConnecting: "RPL_TRACECONNECTING",
-	RplTraceHandshake:  "RPL_TRACEHANDSHAKE",
-	RplTraceUnknown:    "RPL_TRACEUNKNOWN",
-	RplTraceOperator:   "RPL_TRACEOPERATOR",
-	RplTraceUser:       "RPL_TRACEUSER",
-	RplTraceServer:     "RPL_TRACESERVER",
-	RplTraceService:    "RPL_TRACESERVICE",
-	RplTraceNewType:    "RPL_TRACENEWTYPE",
-	RplTraceClass:      "RPL_TRACECLASS",
-	RplStatsLinkInfo:   "RPL_STATSLINKINFO",
-	RplStatsCommands:   "RPL_STATSCOMMANDS",
-	RplStatsCLine:      "RPL_STATSCLINE",
-	RplStatsNLine:      "RPL_STATSNLINE",
-	RplStatsILine:      "RPL_STATSILINE",
-	RplStatsKLine:      "RPL_STATSKLINE",
-	RplStatsQLine:      "RPL_STATSQLINE",
-	RplStatsYLine:      "RPL_STATSYLINE",
-	RplEndOfStats:      "RPL_ENDOFSTATS",
-
-	RplUmodeIs:      "RPL_UMODEIS",
-	RplServList:     "RPL_SERVLIST",
-	RplServListEnd:  "RPL_SERVLISTEND",
-	RplStatsLLine:   "RPL_STATSLLINE",
-	RplStatsUptime:  "RPL_STATSUPTIME",
-	RplStatsOLine:   "RPL_STATSOLINE",
-	RplStatsHLine:   "RPL_STATSHLINE",
-	RplLuserClient:  "RPL_LUSERCLIENT",
-	RplLuserOp:      "RPL_LUSEROP",
-	RplLuserUnknown: "RPL_LUSERUNKNOWN",
-
-	RplLuserChannels: "RPL_LUSERCHANNELS",
-	RplLuserMe:       "RPL_LUSERME",
-	RplAdminMe:       "RPL_ADMINME",
-	RplAdminLoc1:     "RPL_ADMINLOC1",
-	RplAdminLoc2:     "RPL_ADMINLOC2",
-	RplAdminEmail:    "RPL_ADMINEMAIL",
-	RplTraceLog:      "RPL_TRACELOG",
-	RplTraceEnd:      "RPL_TRACEEND",
-	RplTryAgain:      "RPL_TRYAGAIN",
-
-	RplAway:          "RPL_AWAY",
-	RplUserHost:      "RPL_USERHOST",
-	RplIson:          "RPL_ISON",
-	RplUnaway:        "RPL_UNAWAY",
-	RplNowAway:       "RPL_NOWAWAY",
-	RplWhoisUser:     "RPL_WHOISUSER",
-	RplWhoisServer:   "RPL_WHOISSERVER",
-	RplWhoisOperator: "RPL_WHOISOPERATOR",
-	RplWhoWasUser:    "RPL_WHOWASUSER",
-	RplEndOfWho:      "RPL_ENDOFWHO",
-	RplWhoisIdle:     "RPL_WHOISIDLE",
-	RplEndOfWhois:    "RPL_ENDOFWHOIS",
-	RplWhoisChannels: "RPL_WHOISCHANNELS",
-	RplListStart:     "RPL_LISTSTART",
-	RplList:          "RPL_LIST",
-	RplListEnd:       "RPL_LISTEND", //nolint:misspell
-	RplChannelModeIs: "RPL_CHANNELMODEIS",
-
-	RplUniqOpIs:        "RPL_UNIQOPIS",
-	RplCreationTime:    "RPL_CREATIONTIME",
-	RplNoTopic:         "RPL_NOTOPIC",
-	RplTopic:           "RPL_TOPIC",
-	RplTopicWhoTime:    "RPL_TOPICWHOTIME",
-	RplWhoisActually:   "RPL_WHOISACTUALLY",
-	RplInviting:        "RPL_INVITING",
-	RplSummoning:       "RPL_SUMMONING",
-	RplInviteList:      "RPL_INVITELIST",
-	RplEndOfInviteList: "RPL_ENDOFINVITELIST",
-	RplExceptList:      "RPL_EXCEPTLIST",
-	RplEndOfExceptList: "RPL_ENDOFEXCEPTLIST",
-	RplVersion:         "RPL_VERSION",
-	RplWhoReply:        "RPL_WHOREPLY",
-	RplNamReply:        "RPL_NAMREPLY",
-	RplLinks:           "RPL_LINKS",
-	RplEndOfLinks:      "RPL_ENDOFLINKS",
-	RplEndOfNames:      "RPL_ENDOFNAMES",
-	RplBanList:         "RPL_BANLIST",
-	RplEndOfBanList:    "RPL_ENDOFBANLIST",
-	RplEndOfWhowas:     "RPL_ENDOFWHOWAS",
-	RplInfo:            "RPL_INFO",
-	RplMotd:            "RPL_MOTD",
-	RplEndOfInfo:       "RPL_ENDOFINFO",
-	RplMotdStart:       "RPL_MOTDSTART",
-	RplEndOfMotd:       "RPL_ENDOFMOTD",
-	RplYoureOper:       "RPL_YOUREOPER",
-	RplRehashing:       "RPL_REHASHING",
-	RplYoureService:    "RPL_YOURESERVICE",
-	RplTime:            "RPL_TIME",
-	RplUsersStart:      "RPL_USERSSTART",
-	RplUsers:           "RPL_USERS",
-	RplEndOfUsers:      "RPL_ENDOFUSERS",
-	RplNoUsers:         "RPL_NOUSERS",
-
-	ErrNoSuchNick:       "ERR_NOSUCHNICK",
-	ErrNoSuchServer:     "ERR_NOSUCHSERVER",
-	ErrNoSuchChannel:    "ERR_NOSUCHCHANNEL",
-	ErrCannotSendToChan: "ERR_CANNOTSENDTOCHAN",
-	ErrTooManyChannels:  "ERR_TOOMANYCHANNELS",
-	ErrWasNoSuchNick:    "ERR_WASNOSUCHNICK",
-	ErrTooManyTargets:   "ERR_TOOMANYTARGETS",
-	ErrNoSuchService:    "ERR_NOSUCHSERVICE",
-	ErrNoOrigin:         "ERR_NOORIGIN",
-	ErrNoRecipient:      "ERR_NORECIPIENT",
-	ErrNoTextToSend:     "ERR_NOTEXTTOSEND",
-	ErrNoTopLevel:       "ERR_NOTOPLEVEL",
-	ErrWildTopLevel:     "ERR_WILDTOPLEVEL",
-	ErrBadMask:          "ERR_BADMASK",
-	ErrUnknownCommand:   "ERR_UNKNOWNCOMMAND",
-	ErrNoMotd:           "ERR_NOMOTD",
-	ErrNoAdminInfo:      "ERR_NOADMININFO",
-	ErrFileError:        "ERR_FILEERROR",
-	ErrNoNicknameGiven:  "ERR_NONICKNAMEGIVEN",
-	ErrErroneusNickname: "ERR_ERRONEUSNICKNAME",
-	ErrNicknameInUse:    "ERR_NICKNAMEINUSE",
-	ErrNickCollision:    "ERR_NICKCOLLISION",
-	ErrUnavailResource:  "ERR_UNAVAILRESOURCE",
-
-	ErrUserNotInChannel:  "ERR_USERNOTINCHANNEL",
-	ErrNotOnChannel:      "ERR_NOTONCHANNEL",
-	ErrUserOnChannel:     "ERR_USERONCHANNEL",
-	ErrNoLogin:           "ERR_NOLOGIN",
-	ErrSummonDisabled:    "ERR_SUMMONDISABLED",
-	ErrUsersDisabled:     "ERR_USERSDISABLED",
-	ErrNotRegistered:     "ERR_NOTREGISTERED",
-	ErrNeedMoreParams:    "ERR_NEEDMOREPARAMS",
-	ErrAlreadyRegistered: "ERR_ALREADYREGISTERED",
-	ErrNoPermForHost:     "ERR_NOPERMFORHOST",
-	ErrPasswdMismatch:    "ERR_PASSWDMISMATCH",
-	ErrYoureBannedCreep:  "ERR_YOUREBANNEDCREEP",
-	ErrYouWillBeBanned:   "ERR_YOUWILLBEBANNED",
-	ErrKeySet:            "ERR_KEYSET",
-	ErrChannelIsFull:     "ERR_CHANNELISFULL",
-	ErrUnknownMode:       "ERR_UNKNOWNMODE",
-	ErrInviteOnlyChan:    "ERR_INVITEONLYCHAN",
-	ErrBannedFromChan:    "ERR_BANNEDFROMCHAN",
-	ErrBadChannelKey:     "ERR_BADCHANNELKEY",
-	ErrBadChanMask:       "ERR_BADCHANMASK",
-	ErrNoChanModes:       "ERR_NOCHANMODES",
-	ErrBanListFull:       "ERR_BANLISTFULL",
-	ErrNoPrivileges:      "ERR_NOPRIVILEGES",
-	ErrChanOpPrivsNeeded: "ERR_CHANOPRIVSNEEDED",
-	ErrCantKillServer:    "ERR_CANTKILLSERVER",
-	ErrRestricted:        "ERR_RESTRICTED",
-	ErrUniqOpPrivsNeeded: "ERR_UNIQOPPRIVSNEEDED",
-	ErrNoOperHost:        "ERR_NOOPERHOST",
-
-	ErrUmodeUnknownFlag: "ERR_UMODEUNKNOWNFLAG",
-	ErrUsersDoNotMatch:  "ERR_USERSDONTMATCH",
-}
-
-// 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.
-//
-// Deprecated: Use IRCMessageType.Name() instead.
-func Name(code IRCMessageType) string {
-	return names[code]
-}

pkg/irc/numerics_test.go

@@ -1,163 +0,0 @@
-package irc_test
-
-import (
-	"errors"
-	"testing"
-
-	"git.eeqj.de/sneak/neoirc/pkg/irc"
-)
-
-func TestName(t *testing.T) {
-	t.Parallel()
-
-	tests := []struct {
-		numeric irc.IRCMessageType
-		want    string
-	}{
-		{irc.RplWelcome, "RPL_WELCOME"},
-		{irc.RplBounce, "RPL_BOUNCE"},
-		{irc.RplLuserOp, "RPL_LUSEROP"},
-		{irc.ErrCannotSendToChan, "ERR_CANNOTSENDTOCHAN"},
-		{irc.ErrNicknameInUse, "ERR_NICKNAMEINUSE"},
-	}
-
-	for _, tc := range tests {
-		if got := tc.numeric.Name(); got != tc.want {
-			t.Errorf("IRCMessageType(%d).Name() = %q, want %q", tc.numeric.Int(), got, tc.want)
-		}
-	}
-}
-
-func TestString(t *testing.T) {
-	t.Parallel()
-
-	tests := []struct {
-		numeric irc.IRCMessageType
-		want    string
-	}{
-		{irc.RplWelcome, "RPL_WELCOME <001>"},
-		{irc.RplBounce, "RPL_BOUNCE <005>"},
-		{irc.RplLuserOp, "RPL_LUSEROP <252>"},
-		{irc.ErrCannotSendToChan, "ERR_CANNOTSENDTOCHAN <404>"},
-	}
-
-	for _, tc := range tests {
-		if got := tc.numeric.String(); got != tc.want {
-			t.Errorf("IRCMessageType(%d).String() = %q, want %q", tc.numeric.Int(), got, tc.want)
-		}
-	}
-}
-
-func TestCode(t *testing.T) {
-	t.Parallel()
-
-	tests := []struct {
-		numeric irc.IRCMessageType
-		want    string
-	}{
-		{irc.RplWelcome, "001"},
-		{irc.RplBounce, "005"},
-		{irc.RplLuserOp, "252"},
-		{irc.ErrCannotSendToChan, "404"},
-	}
-
-	for _, tc := range tests {
-		if got := tc.numeric.Code(); got != tc.want {
-			t.Errorf("IRCMessageType(%d).Code() = %q, want %q", tc.numeric.Int(), got, tc.want)
-		}
-	}
-}
-
-func TestInt(t *testing.T) {
-	t.Parallel()
-
-	tests := []struct {
-		numeric irc.IRCMessageType
-		want    int
-	}{
-		{irc.RplWelcome, 1},
-		{irc.RplBounce, 5},
-		{irc.RplLuserOp, 252},
-		{irc.ErrCannotSendToChan, 404},
-	}
-
-	for _, tc := range tests {
-		if got := tc.numeric.Int(); got != tc.want {
-			t.Errorf("IRCMessageType(%d).Int() = %d, want %d", tc.want, got, tc.want)
-		}
-	}
-}
-
-func TestFromInt_Known(t *testing.T) {
-	t.Parallel()
-
-	tests := []struct {
-		code int
-		want irc.IRCMessageType
-	}{
-		{1, irc.RplWelcome},
-		{5, irc.RplBounce},
-		{252, irc.RplLuserOp},
-		{404, irc.ErrCannotSendToChan},
-		{433, irc.ErrNicknameInUse},
-	}
-
-	for _, test := range tests {
-		got, err := irc.FromInt(test.code)
-		if err != nil {
-			t.Errorf("FromInt(%d) returned unexpected error: %v", test.code, err)
-
-			continue
-		}
-
-		if got != test.want {
-			t.Errorf("FromInt(%d) = %v, want %v", test.code, got, test.want)
-		}
-	}
-}
-
-func TestFromInt_Unknown(t *testing.T) {
-	t.Parallel()
-
-	unknowns := []int{0, 999, 600, -1}
-	for _, code := range unknowns {
-		_, err := irc.FromInt(code)
-		if err == nil {
-			t.Errorf("FromInt(%d) expected error, got nil", code)
-
-			continue
-		}
-
-		if !errors.Is(err, irc.ErrUnknownNumeric) {
-			t.Errorf("FromInt(%d) error = %v, want ErrUnknownNumeric", code, err)
-		}
-	}
-}
-
-func TestUnknownNumeric_Name(t *testing.T) {
-	t.Parallel()
-
-	unknown := irc.IRCMessageType(999)
-	if got := unknown.Name(); got != "" {
-		t.Errorf("IRCMessageType(999).Name() = %q, want empty string", got)
-	}
-}
-
-func TestUnknownNumeric_String(t *testing.T) {
-	t.Parallel()
-
-	unknown := irc.IRCMessageType(999)
-	want := "UNKNOWN <999>"
-
-	if got := unknown.String(); got != want {
-		t.Errorf("IRCMessageType(999).String() = %q, want %q", got, want)
-	}
-}
-
-func TestDeprecatedNameFunc(t *testing.T) {
-	t.Parallel()
-
-	if got := irc.Name(irc.RplYourHost); got != "RPL_YOURHOST" {
-		t.Errorf("Name(RplYourHost) = %q, want %q", got, "RPL_YOURHOST")
-	}
-}

web/src/app.jsx

@@ -8,56 +8,6 @@ const MEMBER_REFRESH_INTERVAL = 10000;
 const ACTION_PREFIX = "\x01ACTION ";
 const ACTION_SUFFIX = "\x01";
 
-// Hashcash proof-of-work helpers using Web Crypto API.
-
-function checkLeadingZeros(hashBytes, bits) {
-  let count = 0;
-  for (let i = 0; i < hashBytes.length; i++) {
-    if (hashBytes[i] === 0) {
-      count += 8;
-      continue;
-    }
-    let b = hashBytes[i];
-    while ((b & 0x80) === 0) {
-      count++;
-      b <<= 1;
-    }
-    break;
-  }
-  return count >= bits;
-}
-
-async function mintHashcash(bits, resource) {
-  const encoder = new TextEncoder();
-  const now = new Date();
-  const date =
-    String(now.getUTCFullYear()).slice(2) +
-    String(now.getUTCMonth() + 1).padStart(2, "0") +
-    String(now.getUTCDate()).padStart(2, "0");
-  const prefix = `1:${bits}:${date}:${resource}::`;
-  let nonce = Math.floor(Math.random() * 0x100000);
-  const batchSize = 1024;
-
-  for (;;) {
-    const stamps = [];
-    const hashPromises = [];
-    for (let i = 0; i < batchSize; i++) {
-      const stamp = prefix + (nonce + i).toString(16);
-      stamps.push(stamp);
-      hashPromises.push(
-        crypto.subtle.digest("SHA-256", encoder.encode(stamp)),
-      );
-    }
-    const hashes = await Promise.all(hashPromises);
-    for (let i = 0; i < hashes.length; i++) {
-      if (checkLeadingZeros(new Uint8Array(hashes[i]), bits)) {
-        return stamps[i];
-      }
-    }
-    nonce += batchSize;
-  }
-}
-
 function api(path, opts = {}) {
   const token = localStorage.getItem("neoirc_token");
   const headers = {
@@ -110,16 +60,12 @@ function LoginScreen({ onLogin }) {
   const [motd, setMotd] = useState("");
   const [serverName, setServerName] = useState("NeoIRC");
   const inputRef = useRef();
-  const hashcashBitsRef = useRef(0);
-  const hashcashResourceRef = useRef("neoirc");
 
   useEffect(() => {
     api("/server")
       .then((s) => {
         if (s.name) setServerName(s.name);
         if (s.motd) setMotd(s.motd);
-        hashcashBitsRef.current = s.hashcash_bits || 0;
-        if (s.name) hashcashResourceRef.current = s.name;
       })
       .catch(() => {});
     const saved = localStorage.getItem("neoirc_token");
@@ -135,22 +81,9 @@ function LoginScreen({ onLogin }) {
     e.preventDefault();
     setError("");
     try {
-      let hashcashStamp = "";
-      if (hashcashBitsRef.current > 0) {
-        setError("Computing proof-of-work...");
-        hashcashStamp = await mintHashcash(
-          hashcashBitsRef.current,
-          hashcashResourceRef.current,
-        );
-        setError("");
-      }
-      const reqBody = { nick: nick.trim() };
-      if (hashcashStamp) {
-        reqBody.pow_token = hashcashStamp;
-      }
       const res = await api("/session", {
         method: "POST",
-        body: JSON.stringify(reqBody),
+        body: JSON.stringify({ nick: nick.trim() }),
       });
       localStorage.setItem("neoirc_token", res.token);
       onLogin(res.nick);