remove dead Auth() middleware method

The Auth() method in internal/middleware/middleware.go only logged and
passed through without performing any actual authentication. It was
never referenced anywhere in the codebase — authentication is handled
per-handler via requireAuth in the handlers package.

closes #38

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
-# 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
+build:
 	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

@@ -9,13 +9,12 @@ import (
 	"fmt"
 	"io"
 	"net/http"
-	"net/http/cookiejar"
 	"net/url"
 	"strconv"
 	"strings"
 	"time"
 
-	"git.eeqj.de/sneak/neoirc/pkg/irc"
+	"git.eeqj.de/sneak/neoirc/internal/irc"
 )
 
 const (
@@ -29,48 +28,28 @@ var errHTTP = errors.New("HTTP error")
 // Client wraps HTTP calls to the neoirc server API.
 type Client struct {
 	BaseURL    string
+	Token      string
 	HTTPClient *http.Client
 }
 
-// NewClient creates a new API client with a cookie jar
-// for automatic auth cookie management.
+// NewClient creates a new API client.
 func NewClient(baseURL string) *Client {
-	jar, _ := cookiejar.New(nil)
-
-	return &Client{
+	return &Client{ //nolint:exhaustruct // Token set after CreateSession
 		BaseURL: baseURL,
 		HTTPClient: &http.Client{ //nolint:exhaustruct // defaults fine
 			Timeout: httpTimeout,
-			Jar:     jar,
 		},
 	}
 }
 
 // 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
@@ -83,6 +62,8 @@ func (client *Client) CreateSession(
 		return nil, fmt.Errorf("decode session: %w", err)
 	}
 
+	client.Token = resp.Token
+
 	return &resp, nil
 }
 
@@ -123,7 +104,6 @@ func (client *Client) PollMessages(
 		Timeout: time.Duration(
 			timeout+pollExtraTime,
 		) * time.Second,
-		Jar: client.HTTPClient.Jar,
 	}
 
 	params := url.Values{}
@@ -148,6 +128,10 @@ func (client *Client) PollMessages(
 		return nil, fmt.Errorf("new request: %w", err)
 	}
 
+	request.Header.Set(
+		"Authorization", "Bearer "+client.Token,
+	)
+
 	resp, err := pollClient.Do(request)
 	if err != nil {
 		return nil, fmt.Errorf("poll request: %w", err)
@@ -303,6 +287,12 @@ func (client *Client) do(
 		"Content-Type", "application/json",
 	)
 
+	if client.Token != "" {
+		request.Header.Set(
+			"Authorization", "Bearer "+client.Token,
+		)
+	}
+
 	resp, err := client.HTTPClient.Do(request)
 	if err != nil {
 		return nil, fmt.Errorf("http: %w", err)

cmd/neoirc-cli/api/types.go

@@ -5,13 +5,13 @@ import "time"
 // SessionRequest is the body for POST /api/v1/session.
 type SessionRequest struct {
 	Nick string `json:"nick"`
-	Hashcash string `json:"pow_token,omitempty"` //nolint:tagliatelle
 }
 
 // SessionResponse is the response from session creation.
 type SessionResponse struct {
 	ID    int64  `json:"id"`
 	Nick  string `json:"nick"`
+	Token string `json:"token"`
 }
 
 // StateResponse is the response from GET /api/v1/state.
@@ -66,7 +66,6 @@ type ServerInfo struct {
 	Name    string `json:"name"`
 	MOTD    string `json:"motd"`
 	Version string `json:"version"`
-	HashcashBits int    `json:"hashcash_bits"` //nolint:tagliatelle
 }
 
 // MessagesResponse wraps polling results.

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/v5 v5.2.1/go.mod h1:L2yAIGWB3H+phAw1NxKwWM+7eUH/lU8pOMm5hHcoops=
+github.com/go-chi/chi v1.5.5 h1:vOB/HbEMt9QqBqErz07QehcOKHaWFtuj87tTDVz2qXE=
+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

@@ -38,14 +38,12 @@ type Config struct {
 	MetricsUsername    string
 	Port               int
 	SentryDSN          string
-	MessageMaxAge      string
+	MaxHistory         int
 	MaxMessageSize     int
-	QueueMaxAge        string
 	MOTD               string
 	ServerName         string
 	FederationKey      string
 	SessionIdleTimeout string
-	HashcashBits       int
 	params             *Params
 	log                *slog.Logger
 }
@@ -70,14 +68,12 @@ func New(
 	viper.SetDefault("SENTRY_DSN", "")
 	viper.SetDefault("METRICS_USERNAME", "")
 	viper.SetDefault("METRICS_PASSWORD", "")
-	viper.SetDefault("MESSAGE_MAX_AGE", "720h")
+	viper.SetDefault("MAX_HISTORY", "10000")
 	viper.SetDefault("MAX_MESSAGE_SIZE", "4096")
-	viper.SetDefault("QUEUE_MAX_AGE", "720h")
 	viper.SetDefault("MOTD", defaultMOTD)
 	viper.SetDefault("SERVER_NAME", "")
 	viper.SetDefault("FEDERATION_KEY", "")
-	viper.SetDefault("SESSION_IDLE_TIMEOUT", "720h")
-	viper.SetDefault("NEOIRC_HASHCASH_BITS", "20")
+	viper.SetDefault("SESSION_IDLE_TIMEOUT", "24h")
 
 	err := viper.ReadInConfig()
 	if err != nil {
@@ -96,14 +92,12 @@ func New(
 		MaintenanceMode:    viper.GetBool("MAINTENANCE_MODE"),
 		MetricsUsername:    viper.GetString("METRICS_USERNAME"),
 		MetricsPassword:    viper.GetString("METRICS_PASSWORD"),
-		MessageMaxAge:      viper.GetString("MESSAGE_MAX_AGE"),
+		MaxHistory:         viper.GetInt("MAX_HISTORY"),
 		MaxMessageSize:     viper.GetInt("MAX_MESSAGE_SIZE"),
-		QueueMaxAge:        viper.GetString("QUEUE_MAX_AGE"),
 		MOTD:               viper.GetString("MOTD"),
 		ServerName:         viper.GetString("SERVER_NAME"),
 		FederationKey:      viper.GetString("FEDERATION_KEY"),
 		SessionIdleTimeout: viper.GetString("SESSION_IDLE_TIMEOUT"),
-		HashcashBits:       viper.GetInt("NEOIRC_HASHCASH_BITS"),
 		log:                log,
 		params:             &params,
 	}

internal/db/auth.go

@@ -16,28 +16,78 @@ var errNoPassword = errors.New(
 	"account has no password set",
 )
 
-// SetPassword sets a bcrypt-hashed password on a session,
-// enabling multi-client login via POST /api/v1/login.
-func (database *Database) SetPassword(
+// RegisterUser creates a session with a hashed password
+// and returns session ID, client ID, and token.
+func (database *Database) RegisterUser(
 	ctx context.Context,
-	sessionID int64,
-	password string,
-) error {
+	nick, password string,
+) (int64, int64, string, error) {
 	hash, err := bcrypt.GenerateFromPassword(
 		[]byte(password), bcryptCost,
 	)
 	if err != nil {
-		return fmt.Errorf("hash password: %w", err)
+		return 0, 0, "", fmt.Errorf(
+			"hash password: %w", err,
+		)
 	}
 
-	_, err = database.conn.ExecContext(ctx,
-		"UPDATE sessions SET password_hash = ? WHERE id = ?",
-		string(hash), sessionID)
+	sessionUUID := uuid.New().String()
+	clientUUID := uuid.New().String()
+
+	token, err := generateToken()
 	if err != nil {
-		return fmt.Errorf("set password: %w", err)
+		return 0, 0, "", err
 	}
 
-	return nil
+	now := time.Now()
+
+	transaction, err := database.conn.BeginTx(ctx, nil)
+	if err != nil {
+		return 0, 0, "", fmt.Errorf(
+			"begin tx: %w", err,
+		)
+	}
+
+	res, err := transaction.ExecContext(ctx,
+		`INSERT INTO sessions
+		 (uuid, nick, password_hash,
+		  created_at, last_seen)
+		 VALUES (?, ?, ?, ?, ?)`,
+		sessionUUID, nick, string(hash), now, now)
+	if err != nil {
+		_ = transaction.Rollback()
+
+		return 0, 0, "", fmt.Errorf(
+			"create session: %w", err,
+		)
+	}
+
+	sessionID, _ := res.LastInsertId()
+
+	clientRes, err := transaction.ExecContext(ctx,
+		`INSERT INTO clients
+		 (uuid, session_id, token,
+		  created_at, last_seen)
+		 VALUES (?, ?, ?, ?, ?)`,
+		clientUUID, sessionID, token, now, now)
+	if err != nil {
+		_ = transaction.Rollback()
+
+		return 0, 0, "", fmt.Errorf(
+			"create client: %w", err,
+		)
+	}
+
+	clientID, _ := clientRes.LastInsertId()
+
+	err = transaction.Commit()
+	if err != nil {
+		return 0, 0, "", fmt.Errorf(
+			"commit registration: %w", err,
+		)
+	}
+
+	return sessionID, clientID, token, nil
 }
 
 // LoginUser verifies a nick/password and creates a new
@@ -87,14 +137,12 @@ func (database *Database) LoginUser(
 
 	now := time.Now()
 
-	tokenHash := hashToken(token)
-
 	res, err := database.conn.ExecContext(ctx,
 		`INSERT INTO clients
 		 (uuid, session_id, token,
 		  created_at, last_seen)
 		 VALUES (?, ?, ?, ?, ?)`,
-		clientUUID, sessionID, tokenHash, now, now)
+		clientUUID, sessionID, token, now, now)
 	if err != nil {
 		return 0, 0, "", fmt.Errorf(
 			"create login client: %w", err,

internal/db/auth_test.go

@@ -6,65 +6,63 @@ import (
 	_ "modernc.org/sqlite"
 )
 
-func TestSetPassword(t *testing.T) {
+func TestRegisterUser(t *testing.T) {
 	t.Parallel()
 
 	database := setupTestDB(t)
 	ctx := t.Context()
 
-	sessionID, _, _, err :=
-		database.CreateSession(ctx, "passuser")
+	sessionID, clientID, token, err :=
+		database.RegisterUser(ctx, "reguser", "password123")
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	err = database.SetPassword(
-		ctx, sessionID, "password123",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Verify we can now log in with the password.
-	loginSID, loginCID, loginToken, err :=
-		database.LoginUser(ctx, "passuser", "password123")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if loginSID == 0 || loginCID == 0 || loginToken == "" {
+	if sessionID == 0 || clientID == 0 || token == "" {
 		t.Fatal("expected valid ids and token")
 	}
+
+	// Verify session works via token lookup.
+	sid, cid, nick, err :=
+		database.GetSessionByToken(ctx, token)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if sid != sessionID || cid != clientID {
+		t.Fatal("session/client id mismatch")
+	}
+
+	if nick != "reguser" {
+		t.Fatalf("expected reguser, got %s", nick)
+	}
 }
 
-func TestSetPasswordThenWrongLogin(t *testing.T) {
+func TestRegisterUserDuplicateNick(t *testing.T) {
 	t.Parallel()
 
 	database := setupTestDB(t)
 	ctx := t.Context()
 
-	sessionID, _, _, err :=
-		database.CreateSession(ctx, "wrongpw")
+	regSID, regCID, regToken, err :=
+		database.RegisterUser(ctx, "dupnick", "password123")
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	err = database.SetPassword(
-		ctx, sessionID, "correctpass",
-	)
-	if err != nil {
-		t.Fatal(err)
+	_ = regSID
+	_ = regCID
+	_ = regToken
+
+	dupSID, dupCID, dupToken, dupErr :=
+		database.RegisterUser(ctx, "dupnick", "other12345")
+	if dupErr == nil {
+		t.Fatal("expected error for duplicate nick")
 	}
 
-	loginSID, loginCID, loginToken, loginErr :=
-		database.LoginUser(ctx, "wrongpw", "wrongpass12")
-	if loginErr == nil {
-		t.Fatal("expected error for wrong password")
-	}
-
-	_ = loginSID
-	_ = loginCID
-	_ = loginToken
+	_ = dupSID
+	_ = dupCID
+	_ = dupToken
 }
 
 func TestLoginUser(t *testing.T) {
@@ -73,26 +71,23 @@ func TestLoginUser(t *testing.T) {
 	database := setupTestDB(t)
 	ctx := t.Context()
 
-	sessionID, _, _, err :=
-		database.CreateSession(ctx, "loginuser")
+	regSID, regCID, regToken, err :=
+		database.RegisterUser(ctx, "loginuser", "mypassword")
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	err = database.SetPassword(
-		ctx, sessionID, "mypassword",
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
+	_ = regSID
+	_ = regCID
+	_ = regToken
 
-	loginSID, loginCID, token, err :=
+	sessionID, clientID, token, err :=
 		database.LoginUser(ctx, "loginuser", "mypassword")
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	if loginSID == 0 || loginCID == 0 || token == "" {
+	if sessionID == 0 || clientID == 0 || token == "" {
 		t.Fatal("expected valid ids and token")
 	}
 
@@ -108,6 +103,33 @@ func TestLoginUser(t *testing.T) {
 	}
 }
 
+func TestLoginUserWrongPassword(t *testing.T) {
+	t.Parallel()
+
+	database := setupTestDB(t)
+	ctx := t.Context()
+
+	regSID, regCID, regToken, err :=
+		database.RegisterUser(ctx, "wrongpw", "correctpass")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_ = regSID
+	_ = regCID
+	_ = regToken
+
+	loginSID, loginCID, loginToken, loginErr :=
+		database.LoginUser(ctx, "wrongpw", "wrongpass12")
+	if loginErr == nil {
+		t.Fatal("expected error for wrong password")
+	}
+
+	_ = loginSID
+	_ = loginCID
+	_ = loginToken
+}
+
 func TestLoginUserNoPassword(t *testing.T) {
 	t.Parallel()
 

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"`
@@ -114,14 +105,12 @@ func (database *Database) CreateSession(
 
 	sessionID, _ := res.LastInsertId()
 
-	tokenHash := hashToken(token)
-
 	clientRes, err := transaction.ExecContext(ctx,
 		`INSERT INTO clients
 		 (uuid, session_id, token,
 		  created_at, last_seen)
 		 VALUES (?, ?, ?, ?, ?)`,
-		clientUUID, sessionID, tokenHash, now, now)
+		clientUUID, sessionID, token, now, now)
 	if err != nil {
 		_ = transaction.Rollback()
 
@@ -154,8 +143,6 @@ func (database *Database) GetSessionByToken(
 		nick      string
 	)
 
-	tokenHash := hashToken(token)
-
 	err := database.conn.QueryRowContext(
 		ctx,
 		`SELECT s.id, c.id, s.nick
@@ -163,7 +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(
@@ -746,8 +733,8 @@ func scanMessages(
 			code, _ := strconv.Atoi(msg.Command)
 			msg.Code = code
 
-			if mt, err := irc.FromInt(code); err == nil {
-				msg.Command = mt.Name()
+			if name := irc.Name(code); name != "" {
+				msg.Command = name
 			}
 		}
 
@@ -1109,306 +1096,3 @@ func (database *Database) GetSessionCreatedAt(
 
 	return createdAt, nil
 }
-
-// SetAway sets the away message for a session.
-// An empty message clears the away status.
-func (database *Database) SetAway(
-	ctx context.Context,
-	sessionID int64,
-	message string,
-) error {
-	_, err := database.conn.ExecContext(ctx,
-		"UPDATE sessions SET away_message = ? WHERE id = ?",
-		message, sessionID)
-	if err != nil {
-		return fmt.Errorf("set away: %w", err)
-	}
-
-	return nil
-}
-
-// GetAway returns the away message for a session.
-// Returns an empty string if the user is not away.
-func (database *Database) GetAway(
-	ctx context.Context,
-	sessionID int64,
-) (string, error) {
-	var msg string
-
-	err := database.conn.QueryRowContext(ctx,
-		"SELECT away_message FROM sessions WHERE id = ?",
-		sessionID,
-	).Scan(&msg)
-	if err != nil {
-		return "", fmt.Errorf("get away: %w", err)
-	}
-
-	return msg, nil
-}
-
-// SetTopicMeta sets the topic along with who set it and
-// when.
-func (database *Database) SetTopicMeta(
-	ctx context.Context,
-	channelName, topic, setBy string,
-) error {
-	now := time.Now()
-
-	_, err := database.conn.ExecContext(ctx,
-		`UPDATE channels
-		 SET topic = ?, topic_set_by = ?,
-		     topic_set_at = ?, updated_at = ?
-		 WHERE name = ?`,
-		topic, setBy, now, now, channelName)
-	if err != nil {
-		return fmt.Errorf("set topic meta: %w", err)
-	}
-
-	return nil
-}
-
-// TopicMeta holds topic metadata for a channel.
-type TopicMeta struct {
-	SetBy string
-	SetAt time.Time
-}
-
-// GetTopicMeta returns who set the topic and when.
-func (database *Database) GetTopicMeta(
-	ctx context.Context,
-	channelID int64,
-) (*TopicMeta, error) {
-	var (
-		setBy string
-		setAt sql.NullTime
-	)
-
-	err := database.conn.QueryRowContext(ctx,
-		`SELECT topic_set_by, topic_set_at
-		 FROM channels WHERE id = ?`,
-		channelID,
-	).Scan(&setBy, &setAt)
-	if err != nil {
-		return nil, fmt.Errorf(
-			"get topic meta: %w", err,
-		)
-	}
-
-	if setBy == "" || !setAt.Valid {
-		return nil, nil //nolint:nilnil
-	}
-
-	return &TopicMeta{
-		SetBy: setBy,
-		SetAt: setAt.Time,
-	}, nil
-}
-
-// GetSessionLastSeen returns the last_seen time for a
-// session.
-func (database *Database) GetSessionLastSeen(
-	ctx context.Context,
-	sessionID int64,
-) (time.Time, error) {
-	var lastSeen time.Time
-
-	err := database.conn.QueryRowContext(ctx,
-		"SELECT last_seen FROM sessions WHERE id = ?",
-		sessionID,
-	).Scan(&lastSeen)
-	if err != nil {
-		return time.Time{}, fmt.Errorf(
-			"get session last_seen: %w", err,
-		)
-	}
-
-	return lastSeen, nil
-}
-
-// PruneOldQueueEntries deletes client output queue entries
-// older than cutoff and returns the number of rows removed.
-func (database *Database) PruneOldQueueEntries(
-	ctx context.Context,
-	cutoff time.Time,
-) (int64, error) {
-	res, err := database.conn.ExecContext(ctx,
-		"DELETE FROM client_queues WHERE created_at < ?",
-		cutoff,
-	)
-	if err != nil {
-		return 0, fmt.Errorf(
-			"prune old client output queue entries: %w", err,
-		)
-	}
-
-	deleted, _ := res.RowsAffected()
-
-	return deleted, nil
-}
-
-// PruneOldMessages deletes messages older than cutoff and
-// returns the number of rows removed.
-func (database *Database) PruneOldMessages(
-	ctx context.Context,
-	cutoff time.Time,
-) (int64, error) {
-	res, err := database.conn.ExecContext(ctx,
-		"DELETE FROM messages WHERE created_at < ?",
-		cutoff,
-	)
-	if err != nil {
-		return 0, fmt.Errorf(
-			"prune old messages: %w", err,
-		)
-	}
-
-	deleted, _ := res.RowsAffected()
-
-	return deleted, nil
-}
-
-// 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/schema/001_initial.sql

@@ -8,7 +8,6 @@ CREATE TABLE IF NOT EXISTS sessions (
     nick TEXT NOT NULL UNIQUE,
     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
 );
@@ -31,9 +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
 );
@@ -62,14 +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

@@ -4,12 +4,116 @@ import (
 	"encoding/json"
 	"net/http"
 	"strings"
-
-	"git.eeqj.de/sneak/neoirc/pkg/irc"
 )
 
 const minPasswordLength = 8
 
+// HandleRegister creates a new user with a password.
+func (hdlr *Handlers) HandleRegister() http.HandlerFunc {
+	return func(
+		writer http.ResponseWriter,
+		request *http.Request,
+	) {
+		request.Body = http.MaxBytesReader(
+			writer, request.Body, hdlr.maxBodySize(),
+		)
+
+		hdlr.handleRegister(writer, request)
+	}
+}
+
+func (hdlr *Handlers) handleRegister(
+	writer http.ResponseWriter,
+	request *http.Request,
+) {
+	type registerRequest struct {
+		Nick     string `json:"nick"`
+		Password string `json:"password"`
+	}
+
+	var payload registerRequest
+
+	err := json.NewDecoder(request.Body).Decode(&payload)
+	if err != nil {
+		hdlr.respondError(
+			writer, request,
+			"invalid request body",
+			http.StatusBadRequest,
+		)
+
+		return
+	}
+
+	payload.Nick = strings.TrimSpace(payload.Nick)
+
+	if !validNickRe.MatchString(payload.Nick) {
+		hdlr.respondError(
+			writer, request,
+			"invalid nick format",
+			http.StatusBadRequest,
+		)
+
+		return
+	}
+
+	if len(payload.Password) < minPasswordLength {
+		hdlr.respondError(
+			writer, request,
+			"password must be at least 8 characters",
+			http.StatusBadRequest,
+		)
+
+		return
+	}
+
+	sessionID, clientID, token, err :=
+		hdlr.params.Database.RegisterUser(
+			request.Context(),
+			payload.Nick,
+			payload.Password,
+		)
+	if err != nil {
+		hdlr.handleRegisterError(
+			writer, request, err,
+		)
+
+		return
+	}
+
+	hdlr.deliverMOTD(request, clientID, sessionID, payload.Nick)
+
+	hdlr.respondJSON(writer, request, map[string]any{
+		"id":    sessionID,
+		"nick":  payload.Nick,
+		"token": token,
+	}, http.StatusCreated)
+}
+
+func (hdlr *Handlers) handleRegisterError(
+	writer http.ResponseWriter,
+	request *http.Request,
+	err error,
+) {
+	if strings.Contains(err.Error(), "UNIQUE") {
+		hdlr.respondError(
+			writer, request,
+			"nick already taken",
+			http.StatusConflict,
+		)
+
+		return
+	}
+
+	hdlr.log.Error(
+		"register user failed", "error", err,
+	)
+	hdlr.respondError(
+		writer, request,
+		"internal error",
+		http.StatusInternalServerError,
+	)
+}
+
 // HandleLogin authenticates a user with nick and password.
 func (hdlr *Handlers) HandleLogin() http.HandlerFunc {
 	return func(
@@ -74,8 +178,6 @@ func (hdlr *Handlers) handleLogin(
 		return
 	}
 
-	hdlr.stats.IncrConnections()
-
 	hdlr.deliverMOTD(
 		request, clientID, sessionID, payload.Nick,
 	)
@@ -86,66 +188,9 @@ func (hdlr *Handlers) handleLogin(
 		request, clientID, sessionID, payload.Nick,
 	)
 
-	hdlr.setAuthCookie(writer, request, token)
-
 	hdlr.respondJSON(writer, request, map[string]any{
 		"id":    sessionID,
 		"nick":  payload.Nick,
+		"token": token,
 	}, http.StatusOK)
 }
-
-// handlePass handles the IRC PASS command to set a
-// password on the authenticated session, enabling
-// multi-client login via POST /api/v1/login.
-func (hdlr *Handlers) handlePass(
-	writer http.ResponseWriter,
-	request *http.Request,
-	sessionID, clientID int64,
-	nick string,
-	bodyLines func() []string,
-) {
-	lines := bodyLines()
-	if len(lines) == 0 || lines[0] == "" {
-		hdlr.respondIRCError(
-			writer, request, clientID, sessionID,
-			irc.ErrNeedMoreParams, nick,
-			[]string{irc.CmdPass},
-			"Not enough parameters",
-		)
-
-		return
-	}
-
-	password := lines[0]
-
-	if len(password) < minPasswordLength {
-		hdlr.respondIRCError(
-			writer, request, clientID, sessionID,
-			irc.ErrNeedMoreParams, nick,
-			[]string{irc.CmdPass},
-			"Password must be at least 8 characters",
-		)
-
-		return
-	}
-
-	err := hdlr.params.Database.SetPassword(
-		request.Context(), sessionID, password,
-	)
-	if err != nil {
-		hdlr.log.Error(
-			"set password failed", "error", err,
-		)
-		hdlr.respondError(
-			writer, request,
-			"internal error",
-			http.StatusInternalServerError,
-		)
-
-		return
-	}
-
-	hdlr.respondJSON(writer, request,
-		map[string]string{"status": "ok"},
-		http.StatusOK)
-}

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"
 )
 
@@ -31,15 +29,9 @@ 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
+const defaultIdleTimeout = 24 * time.Hour
 
 // Handlers manages HTTP request handling.
 type Handlers struct {
@@ -47,9 +39,6 @@ type Handlers struct {
 	log           *slog.Logger
 	hc            *healthcheck.Healthcheck
 	broker        *broker.Broker
-	hashcashVal     *hashcash.Validator
-	channelHashcash *hashcash.ChannelValidator
-	stats           *stats.Tracker
 	cancelCleanup context.CancelFunc
 }
 
@@ -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,
 		log:    params.Logger.Get(),
 		hc:     params.Healthcheck,
 		broker: broker.New(),
-		hashcashVal:     hashcash.NewValidator(resource),
-		channelHashcash: hashcash.NewChannelValidator(),
-		stats:           params.Stats,
 	}
 
 	lifecycle.Append(fx.Hook{
@@ -219,93 +200,4 @@ func (hdlr *Handlers) runCleanup(
 			"deleted", deleted,
 		)
 	}
-
-	hdlr.pruneQueuesAndMessages(ctx)
-}
-
-// parseDurationConfig parses a Go duration string,
-// returning zero on empty input and logging on error.
-func (hdlr *Handlers) parseDurationConfig(
-	name, raw string,
-) time.Duration {
-	if raw == "" {
-		return 0
-	}
-
-	dur, err := time.ParseDuration(raw)
-	if err != nil {
-		hdlr.log.Error(
-			"invalid duration config, skipping",
-			"name", name, "value", raw, "error", err,
-		)
-
-		return 0
-	}
-
-	return dur
-}
-
-// pruneQueuesAndMessages removes old client output queue
-// entries per QUEUE_MAX_AGE and old messages per
-// MESSAGE_MAX_AGE.
-func (hdlr *Handlers) pruneQueuesAndMessages(
-	ctx context.Context,
-) {
-	queueMaxAge := hdlr.parseDurationConfig(
-		"QUEUE_MAX_AGE",
-		hdlr.params.Config.QueueMaxAge,
-	)
-	if queueMaxAge > 0 {
-		queueCutoff := time.Now().Add(-queueMaxAge)
-
-		pruned, err := hdlr.params.Database.
-			PruneOldQueueEntries(ctx, queueCutoff)
-		if err != nil {
-			hdlr.log.Error(
-				"client output queue pruning failed", "error", err,
-			)
-		} else if pruned > 0 {
-			hdlr.log.Info(
-				"pruned old client output queue entries",
-				"deleted", pruned,
-			)
-		}
-	}
-
-	messageMaxAge := hdlr.parseDurationConfig(
-		"MESSAGE_MAX_AGE",
-		hdlr.params.Config.MessageMaxAge,
-	)
-	if messageMaxAge > 0 {
-		msgCutoff := time.Now().Add(-messageMaxAge)
-
-		pruned, err := hdlr.params.Database.
-			PruneOldMessages(ctx, msgCutoff)
-		if err != nil {
-			hdlr.log.Error(
-				"message pruning failed", "error", err,
-			)
-		} else if pruned > 0 {
-			hdlr.log.Info(
-				"pruned old messages",
-				"deleted", pruned,
-			)
-		}
-	}
-
-	// 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(
-	ctx context.Context,
-) *Response {
-	resp := &Response{
+func (hcheck *Healthcheck) Healthcheck() *Response {
+	return &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"
-	CmdPass    = "PASS"
 	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"
@@ -126,23 +126,18 @@ func (mware *Middleware) Logging() func(http.Handler) http.Handler {
 }
 
 // CORS returns middleware that handles Cross-Origin Resource Sharing.
-// AllowCredentials is true so browsers include cookies in
-// cross-origin API requests.
 func (mware *Middleware) CORS() func(http.Handler) http.Handler {
 	return cors.Handler(cors.Options{ //nolint:exhaustruct // optional fields
-		AllowOriginFunc: func(
-			_ *http.Request, _ string,
-		) bool {
-			return true
-		},
+		AllowedOrigins: []string{"*"},
 		AllowedMethods: []string{
 			"GET", "POST", "PUT", "DELETE", "OPTIONS",
 		},
 		AllowedHeaders: []string{
-			"Accept", "Content-Type", "X-CSRF-Token",
+			"Accept", "Authorization",
+			"Content-Type", "X-CSRF-Token",
 		},
 		ExposedHeaders:   []string{"Link"},
-		AllowCredentials: true,
+		AllowCredentials: false,
 		MaxAge:           corsMaxAge,
 	})
 }

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/v5/middleware"
+	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/middleware"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/spf13/viper"
 )
@@ -75,6 +75,10 @@ func (srv *Server) setupAPIv1(router chi.Router) {
 		"/session",
 		srv.handlers.HandleCreateSession(),
 	)
+	router.Post(
+		"/register",
+		srv.handlers.HandleRegister(),
+	)
 	router.Post(
 		"/login",
 		srv.handlers.HandleLogin(),

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

@@ -1,391 +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
-	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",
-	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);