Domain redirects: send an address to another, over HTTP and HTTPS

A website resource can now redirect to a full address (301 or 302), optionally
keeping the path and query, with no target or login. The Add resource wizard
has a Domain redirect choice that opens the HTTPS and HTTP sides together.
Deleting a site no longer removes redirects. Uses Reef v0.1.10 and Blacktip v0.1.9.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

alerts.go

@@ -28,14 +28,17 @@ const (
 	defaultOffline  = 90 * time.Second
 )
 
-// AlertChannel is somewhere alerts are sent: an email address or a webhook.
+// AlertChannel is somewhere alerts are sent: an email address, a webhook, or a
+// Sandbar server (which pages whoever is on call and tracks the alert).
 type AlertChannel struct {
 	ID           string `json:"id"`
 	OrgID        string `json:"orgId"` // "" = a server-level channel (for edges)
 	Name         string `json:"name"`
-	Kind         string `json:"kind"`   // "email" or "webhook"
-	Target       string `json:"target"` // address(es), or a webhook URL (secret: URLs often carry tokens)
+	Kind         string `json:"kind"`   // "email", "webhook" or "sandbar"
+	Target       string `json:"target"` // address(es), a webhook URL, or Sandbar's address (secret: URLs often carry tokens)
 	Format       string `json:"format"` // webhook body: "json", "slack", "discord" or "ntfy"
+	Token        string `json:"token"`  // Sandbar: API key (secret, never sent back to the browser)
+	Policy       string `json:"policy"` // Sandbar: escalation policy id; blank sends the alert without paging anyone
 	AllowPrivate bool   `json:"allowPrivate"`
 	Enabled      bool   `json:"enabled"`
 }
@@ -50,6 +53,7 @@ type alertState struct {
 type problem struct{ org, kind, name, msg string }
 
 type alertNote struct {
+	Key     string    `json:"key"`    // stable per problem, so a recovery can find its alert
 	Status  string    `json:"status"` // "firing", "resolved" or "test"
 	Org     string    `json:"org"`
 	Kind    string    `json:"kind"`
@@ -251,7 +255,7 @@ func (s *Server) evaluateAlerts(now time.Time) {
 				chans = append(chans, *c)
 			}
 		}
-		out = append(out, delivery{alertNote{Status: status, Org: orgName(st.OrgID), Kind: st.Kind, Name: st.Name, Message: st.Message, Since: st.Since, Time: now}, chans})
+		out = append(out, delivery{alertNote{Key: st.Key, Status: status, Org: orgName(st.OrgID), Kind: st.Kind, Name: st.Name, Message: st.Message, Since: st.Since, Time: now}, chans})
 		s.db.addAlertEvent(now, st.OrgID, st.Key, status, st.Name, st.Message)
 	}
 	keys := make([]string, 0, len(probs))
@@ -362,6 +366,8 @@ func (s *Server) send(ch AlertChannel, n alertNote) error {
 			}
 		}
 		return errors.Join(errs...)
+	case "sandbar":
+		return s.sendSandbar(ch, n)
 	case "webhook":
 		body, ctype, hdr := webhookBody(ch.Format, n)
 		req, err := http.NewRequest("POST", ch.Target, bytes.NewReader(body))
@@ -385,6 +391,47 @@ func (s *Server) send(ch AlertChannel, n alertNote) error {
 	return errors.New("unknown channel kind")
 }
 
+// sendSandbar raises the alert on a Sandbar server, or resolves it there when the
+// problem clears. Sandbar de-duplicates by key, so a reminder updates the alert
+// that is already open instead of opening another. A test raises an info alert
+// with no policy (nobody is paged) and resolves it straight away.
+func (s *Server) sendSandbar(ch AlertChannel, n alertNote) error {
+	post := func(body map[string]string) error {
+		raw, _ := json.Marshal(body)
+		req, err := http.NewRequest("POST", strings.TrimRight(ch.Target, "/")+"/api/v1/alerts", bytes.NewReader(raw))
+		if err != nil {
+			return err
+		}
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Authorization", "Bearer "+ch.Token)
+		resp, err := netguard.Client(ch.AllowPrivate).Do(req)
+		if err != nil {
+			return err
+		}
+		defer resp.Body.Close()
+		switch {
+		case resp.StatusCode == 401 || resp.StatusCode == 403:
+			return errors.New("Sandbar rejected the API key")
+		case resp.StatusCode >= 300:
+			return fmt.Errorf("Sandbar answered %s", resp.Status)
+		}
+		return nil
+	}
+	key := "hammerhead:" + n.Key
+	switch n.Status {
+	case "resolved":
+		return post(map[string]string{"key": key, "status": "resolved", "source": "hammerhead"})
+	case "test":
+		key = "hammerhead:test:" + ch.ID
+		if err := post(map[string]string{"key": key, "source": "hammerhead", "summary": "Hammerhead test alert", "detail": n.text(), "severity": "info"}); err != nil {
+			return err
+		}
+		return post(map[string]string{"key": key, "status": "resolved", "source": "hammerhead"})
+	}
+	return post(map[string]string{"key": key, "source": "hammerhead", "summary": n.Name + ": " + n.Message,
+		"detail": "Organization: " + n.Org + "\nSince: " + n.Since.Format(time.RFC1123), "severity": "critical", "policy": ch.Policy})
+}
+
 func webhookBody(format string, n alertNote) (body []byte, ctype string, hdr map[string]string) {
 	text := n.subject() + "\n" + n.text()
 	switch format {
@@ -415,12 +462,25 @@ func (s *Server) validateChannel(ch *AlertChannel, trusted bool) error {
 				return errors.New("enter one or more email addresses, separated by commas")
 			}
 		}
-		ch.Format, ch.AllowPrivate = "", false
+		ch.Format, ch.Token, ch.Policy, ch.AllowPrivate = "", "", "", false
+	case "sandbar":
+		u, err := url.Parse(ch.Target)
+		if err != nil || (u.Scheme != "http" && u.Scheme != "https") || u.Host == "" {
+			return errors.New("enter Sandbar's address, such as https://sandbar.example.com")
+		}
+		if ch.Token = strings.TrimSpace(ch.Token); ch.Token == "" {
+			return errors.New("enter an API key from Sandbar's Account page")
+		}
+		ch.Policy, ch.Format = strings.TrimSpace(ch.Policy), ""
+		if ch.AllowPrivate && !trusted {
+			return errors.New("sending to private addresses (like a service on your home network) needs a server administrator to allow it for this organization")
+		}
 	case "webhook":
 		u, err := url.Parse(ch.Target)
 		if err != nil || (u.Scheme != "http" && u.Scheme != "https") || u.Host == "" {
 			return errors.New("the webhook must be an http:// or https:// URL")
 		}
+		ch.Token, ch.Policy = "", ""
 		switch ch.Format {
 		case "json", "slack", "discord", "ntfy":
 		case "":
@@ -432,7 +492,7 @@ func (s *Server) validateChannel(ch *AlertChannel, trusted bool) error {
 			return errors.New("sending to private addresses (like a service on your home network) needs a server administrator to allow it for this organization")
 		}
 	default:
-		return errors.New("a channel is an email or a webhook")
+		return errors.New("a channel is an email, a webhook or a Sandbar server")
 	}
 	if ch.Name == "" {
 		ch.Name = ch.Kind

alerts_api.go

@@ -23,7 +23,7 @@ type channelView struct {
 }
 
 func preview(ch AlertChannel) string {
-	if ch.Kind != "webhook" {
+	if ch.Kind == "email" {
 		return ch.Target
 	}
 	if u, err := url.Parse(ch.Target); err == nil {
@@ -47,7 +47,7 @@ func (s *Server) alertOverview(w http.ResponseWriter, sc alertScope) {
 	for _, c := range s.st.Channels {
 		if c.OrgID == sc.org {
 			v := channelView{AlertChannel: *c, Preview: preview(*c)}
-			v.Target = "" // webhook URLs often contain tokens
+			v.Target, v.Token = "", "" // webhook URLs often contain tokens
 			if c.Kind == "email" {
 				v.Target = c.Target
 			}
@@ -95,6 +95,9 @@ func (s *Server) saveChannel(w http.ResponseWriter, r *http.Request, sc alertSco
 		if in.Target == "" {
 			in.Target = existing.Target // blank keeps the saved URL/address
 		}
+		if id != "" && in.Token == "" && in.Kind == "sandbar" {
+			in.Token = existing.Token // blank keeps the saved API key
+		}
 	}
 	trusted := sc.trusted
 	if err := s.validateChannel(&in, trusted); err != nil {

alerts_test.go

@@ -10,8 +10,8 @@ import (
 	"testing"
 	"time"
 
-	"git.veillax.com/Veillax/hammerhead/internal/secretbox"
 	"git.veillax.com/Veillax/reef/model"
+	"git.veillax.com/Veillax/reef/secretbox"
 )
 
 type hook struct {
@@ -487,3 +487,57 @@ func TestPromEscape(t *testing.T) {
 		t.Errorf("promEscape = %q", got)
 	}
 }
+
+func TestSandbarChannelRaisesAndResolves(t *testing.T) {
+	f := newFx(t)
+	h := newHook(t)
+	f.s.mu.Lock()
+	f.s.st.Channels = []*AlertChannel{{ID: "c2", OrgID: f.org, Name: "pager", Kind: "sandbar", Target: strings.TrimSuffix(h.URL, "/hook/secret-token"),
+		Token: "sb_secret", Policy: "pol1", AllowPrivate: true, Enabled: true}}
+	f.s.mu.Unlock()
+
+	f.eval(f.base)
+	f.setHealthy(false)
+	f.eval(f.base.Add(10 * time.Second))
+	f.eval(f.base.Add(3 * time.Minute))
+	var up map[string]string
+	if err := json.Unmarshal([]byte(h.next(2*time.Second)), &up); err != nil {
+		t.Fatal("no Sandbar request:", err)
+	}
+	if up["key"] != "hammerhead:target:m1:0" || up["policy"] != "pol1" || up["severity"] != "critical" || !strings.Contains(up["summary"], "Minecraft") {
+		t.Fatalf("unexpected alert sent to Sandbar: %v", up)
+	}
+	h.mu.Lock()
+	auth := h.hdrs[0].Get("Authorization")
+	h.mu.Unlock()
+	if auth != "Bearer sb_secret" {
+		t.Fatalf("API key not sent: %q", auth)
+	}
+
+	f.setHealthy(true)
+	f.eval(f.base.Add(4 * time.Minute))
+	var down map[string]string
+	if err := json.Unmarshal([]byte(h.next(2*time.Second)), &down); err != nil {
+		t.Fatal("no resolve request:", err)
+	}
+	if down["key"] != up["key"] || down["status"] != "resolved" {
+		t.Fatalf("recovery did not resolve the same alert: %v", down)
+	}
+}
+
+func TestSandbarChannelValidation(t *testing.T) {
+	f := newFx(t)
+	for _, ch := range []AlertChannel{
+		{Kind: "sandbar", Target: "not a url", Token: "k"},
+		{Kind: "sandbar", Target: "https://sandbar.example.com"}, // no API key
+	} {
+		ch := ch
+		if err := f.s.validateChannel(&ch, true); err == nil {
+			t.Fatalf("accepted %+v", ch)
+		}
+	}
+	ok := AlertChannel{Kind: "sandbar", Target: "https://sandbar.example.com", Token: " k ", Policy: " p "}
+	if err := f.s.validateChannel(&ok, true); err != nil || ok.Token != "k" || ok.Policy != "p" {
+		t.Fatalf("%v %+v", err, ok)
+	}
+}

cmd/hammerhead/main.go

@@ -13,8 +13,8 @@ import (
 	"time"
 
 	"git.veillax.com/Veillax/hammerhead"
-	"git.veillax.com/Veillax/hammerhead/internal/secretbox"
 	"git.veillax.com/Veillax/reef/dotenv"
+	"git.veillax.com/Veillax/reef/secretbox"
 	"git.veillax.com/Veillax/reef/selfupdate"
 )
 

db.go

@@ -9,8 +9,8 @@ import (
 	"sync"
 	"time"
 
-	"git.veillax.com/Veillax/hammerhead/internal/secretbox"
 	"git.veillax.com/Veillax/reef/model"
+	"git.veillax.com/Veillax/reef/secretbox"
 	_ "modernc.org/sqlite" // pure Go, so no C compiler is needed
 )
 
@@ -113,7 +113,7 @@ func (d *DB) sealed(v any) any {
 		return &c
 	case *AlertChannel:
 		c := *x
-		c.Target = b.Seal(c.Target)
+		c.Target, c.Token = b.Seal(c.Target), b.Seal(c.Token)
 		return &c
 	case Settings:
 		x.SMTP.Pass = b.Seal(x.SMTP.Pass)
@@ -144,7 +144,7 @@ func (d *DB) unseal(v any) error {
 	case *model.DKIMKey:
 		return d.open1(&x.PrivateKey)
 	case *AlertChannel:
-		return d.open1(&x.Target)
+		return errors.Join(d.open1(&x.Target), d.open1(&x.Token))
 	case *Settings:
 		return d.open1(&x.SMTP.Pass)
 	}

db_test.go

@@ -13,8 +13,8 @@ import (
 	"testing"
 	"time"
 
-	"git.veillax.com/Veillax/hammerhead/internal/secretbox"
 	"git.veillax.com/Veillax/reef/model"
+	"git.veillax.com/Veillax/reef/secretbox"
 )
 
 func apiClient(t *testing.T, s *Server) (do func(method, path string, in any) (int, []byte)) {

go.mod

@@ -4,8 +4,8 @@ go 1.27.3
 
 require (
 	git.veillax.com/Veillax/bamboo v0.1.5
-	git.veillax.com/Veillax/blacktip v0.1.8
-	git.veillax.com/Veillax/reef v0.1.7
+	git.veillax.com/Veillax/blacktip v0.1.9
+	git.veillax.com/Veillax/reef v0.1.10
 	github.com/emersion/go-msgauth v0.7.0
 	golang.org/x/crypto v0.58.0
 	modernc.org/sqlite v1.61.0

go.sum

@@ -1,31 +1,9 @@
-git.veillax.com/Veillax/bamboo v0.1.0 h1:16BG1P8982dIkHA2l0LPS0xYQc8d86PruVAGxc8BP84=
-git.veillax.com/Veillax/bamboo v0.1.0/go.mod h1:i4l4uJgG6Ymfwbjnlz0xeTt3qW/+1W1L2JBToMw50n0=
-git.veillax.com/Veillax/bamboo v0.1.3 h1:A66gz9GmmtUq1iIGUAL2ItIeC6iTy5pvqJOoIjRHjFg=
-git.veillax.com/Veillax/bamboo v0.1.3/go.mod h1:UuHV6aNHmV9jpow0xeGlXX0QhMB9glPJUGzgIM7S1MM=
-git.veillax.com/Veillax/bamboo v0.1.4 h1:pgiBJA46CBJx7T3bloCjPekb6wl6W5H8teokFAH5gj0=
-git.veillax.com/Veillax/bamboo v0.1.4/go.mod h1:wzSpfql7U4a3b9mCVH01OPG9H9szrzwSFDufWw02e0g=
 git.veillax.com/Veillax/bamboo v0.1.5 h1:i81c75/7wjayP9tOQ3tSnJWTBhvbjAwNBEPhT+3P2Xk=
 git.veillax.com/Veillax/bamboo v0.1.5/go.mod h1:se4kkcP6c3uCGD4HQd+nDLoblS0lN8qa+eFWLo5Horw=
-git.veillax.com/Veillax/blacktip v0.1.0 h1:L8WpW56gqtvZ1IAapE95Ynl6NKjqTA98WwmEH01kFFk=
-git.veillax.com/Veillax/blacktip v0.1.0/go.mod h1:sj+mr8393rajzWbl0+RRZrstGyDtZ/GHsut6ebScVxg=
-git.veillax.com/Veillax/blacktip v0.1.4 h1:o3uNoA0ucB/qcN9ccofysdFA6RTEU4jKdgeTWuE2Uw0=
-git.veillax.com/Veillax/blacktip v0.1.4/go.mod h1:f7zXCYlQf/9ffDLjPrMHylKAyXX4Nb+aQ7kErmOOhqI=
-git.veillax.com/Veillax/blacktip v0.1.6 h1:dUJzNGXgieWX05ftWjnMfh6norhaeKTqo1P13lJvjtk=
-git.veillax.com/Veillax/blacktip v0.1.6/go.mod h1:ZnPRc2gPh9ElILfPH39G/x3B6KAiHQyeoDLycSDgVPM=
-git.veillax.com/Veillax/blacktip v0.1.7 h1:PjxEkhE4fnGWht9Pj2/l6S8fOX2Iqjir3rc9vfpMFiQ=
-git.veillax.com/Veillax/blacktip v0.1.7/go.mod h1:dVm4wC6wufPjFzK8pvHnqNJJlxroRYmnq8mdkCqOKGc=
-git.veillax.com/Veillax/blacktip v0.1.8 h1:TR4HfXlGwrNjCqOY+xUnJCJwESRTwFerb2wVhq/zbUk=
-git.veillax.com/Veillax/blacktip v0.1.8/go.mod h1:dVm4wC6wufPjFzK8pvHnqNJJlxroRYmnq8mdkCqOKGc=
-git.veillax.com/Veillax/reef v0.1.0 h1:O0OhEKFx2CsvACJ20sfzJNjGsngomtfDdKdxu4ROpCs=
-git.veillax.com/Veillax/reef v0.1.0/go.mod h1:ZBUd/BARO5kkpUNTP81TTY1aQXLHFR6bKDhCxckjHso=
-git.veillax.com/Veillax/reef v0.1.3 h1:RxSq2xwaup1+MieAkhlvOTZnYwPf19thFHEAe/7VxsI=
-git.veillax.com/Veillax/reef v0.1.3/go.mod h1:ZBUd/BARO5kkpUNTP81TTY1aQXLHFR6bKDhCxckjHso=
-git.veillax.com/Veillax/reef v0.1.4 h1:T2+B8P1GAitEyTYRkwMT3UHbG9mN5zXb/inE2muXdQ4=
-git.veillax.com/Veillax/reef v0.1.4/go.mod h1:ZBUd/BARO5kkpUNTP81TTY1aQXLHFR6bKDhCxckjHso=
-git.veillax.com/Veillax/reef v0.1.6 h1:NgZ4u2Z3hJ+BYD/zX9lov8fox4s2i8txtYNOpIsikVo=
-git.veillax.com/Veillax/reef v0.1.6/go.mod h1:ZBUd/BARO5kkpUNTP81TTY1aQXLHFR6bKDhCxckjHso=
-git.veillax.com/Veillax/reef v0.1.7 h1:5C2udonlJac2xvDOE5e+zDxej+AbZ9ttrNSE4owmwuU=
-git.veillax.com/Veillax/reef v0.1.7/go.mod h1:ZBUd/BARO5kkpUNTP81TTY1aQXLHFR6bKDhCxckjHso=
+git.veillax.com/Veillax/blacktip v0.1.9 h1:MMkF8GCrN01IWwwii1WM5l+nqIbHsOznyrbG7OvDtoo=
+git.veillax.com/Veillax/blacktip v0.1.9/go.mod h1:9mYwKMiKXN/P0dpPtdTzG7zf1IeHt/aISa0SQD9rlzY=
+git.veillax.com/Veillax/reef v0.1.10 h1:b15oD1vyrGOriCHhipQtJ3j7Cy5ForYWvfJkqifLQPg=
+git.veillax.com/Veillax/reef v0.1.10/go.mod h1:ZBUd/BARO5kkpUNTP81TTY1aQXLHFR6bKDhCxckjHso=
 github.com/Microsoft/go-winio v0.6.4 h1:kJF2pamtYCWXf0xAT8sAkwKC0pMl2HYBrRPHAqyUc+g=
 github.com/Microsoft/go-winio v0.6.4/go.mod h1:1xl5JXG4ze/m74GH6Dc4Mwxfc3VL5siRVQjIAlHH07U=
 github.com/dustin/go-humanize v1.1.0 h1:dbKTrvD0klcbBV/h4AWJdMuZogJACoMlvWIWZ5b2xWg=

infra.go

@@ -204,6 +204,43 @@ func (s *Server) addSite(w http.ResponseWriter, r *http.Request, c *orgCtx) {
 	writeJSON(w, 200, st)
 }
 
+// putSite renames a site and sets its tags. The built-in local site is shared between
+// organizations, so it can't be edited here.
+func (s *Server) putSite(w http.ResponseWriter, r *http.Request, c *orgCtx) {
+	var in struct {
+		Name string   `json:"name"`
+		Tags []string `json:"tags"`
+	}
+	if !decode(w, r, &in) {
+		return
+	}
+	in.Name = strings.TrimSpace(in.Name)
+	if in.Name == "" {
+		fail(w, 400, errors.New("name is required"))
+		return
+	}
+	tags, err := normalizeTags(in.Tags)
+	if err != nil {
+		fail(w, 400, err)
+		return
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	st := s.findSite(r.PathValue("id"))
+	if st == nil || st.OrgID != c.Org.ID {
+		fail(w, 404, errors.New("no such site"))
+		return
+	}
+	if st.Local {
+		fail(w, 400, errors.New("the built-in local site can't be edited"))
+		return
+	}
+	st.Name, st.Tags = in.Name, tags
+	s.bump()
+	s.audit(c.Org.ID, c.Actor, "site.update", st.Name)
+	ok(w)
+}
+
 func (s *Server) deleteSite(w http.ResponseWriter, r *http.Request, c *orgCtx) {
 	id := r.PathValue("id")
 	s.mu.Lock()
@@ -233,7 +270,7 @@ func (s *Server) deleteSite(w http.ResponseWriter, r *http.Request, c *orgCtx) {
 			}
 		}
 	}
-	s.st.Mappings = filter(s.st.Mappings, func(m *model.Mapping) bool { return len(m.Targets) > 0 })
+	s.st.Mappings = filter(s.st.Mappings, func(m *model.Mapping) bool { return len(m.Targets) > 0 || m.IsRedirect() })
 	s.bump()
 	s.audit(c.Org.ID, c.Actor, "site.delete", st.Name)
 	ok(w)

internal/secretbox/secretbox.go

@@ -1,87 +0,0 @@
-// Package secretbox encrypts small secrets (tokens, passwords, private keys)
-// before they are written to the database, using AES-256-GCM.
-//
-// Sealed values look like "enc1:<base64>". Opening a value that isn't sealed
-// returns it unchanged, so data written before encryption was turned on is
-// still readable and gets sealed the next time it is saved.
-package secretbox
-
-import (
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/rand"
-	"crypto/sha256"
-	"encoding/base64"
-	"encoding/hex"
-	"errors"
-	"strings"
-)
-
-const prefix = "enc1:"
-
-type Box struct{ aead cipher.AEAD }
-
-// GenerateKey returns a new random key in the form New accepts.
-func GenerateKey() string {
-	b := make([]byte, 32)
-	rand.Read(b)
-	return base64.StdEncoding.EncodeToString(b)
-}
-
-// New builds a Box from a key given as base64 or hex of 32 bytes. Any other
-// text is treated as a passphrase and stretched with SHA-256.
-func New(key string) (*Box, error) {
-	key = strings.TrimSpace(key)
-	if key == "" {
-		return nil, errors.New("empty key")
-	}
-	raw := decodeKey(key)
-	block, err := aes.NewCipher(raw)
-	if err != nil {
-		return nil, err
-	}
-	aead, err := cipher.NewGCM(block)
-	if err != nil {
-		return nil, err
-	}
-	return &Box{aead: aead}, nil
-}
-
-func decodeKey(key string) []byte {
-	if b, err := base64.StdEncoding.DecodeString(key); err == nil && len(b) == 32 {
-		return b
-	}
-	if b, err := hex.DecodeString(key); err == nil && len(b) == 32 {
-		return b
-	}
-	sum := sha256.Sum256([]byte(key))
-	return sum[:]
-}
-
-// Seal encrypts s. The empty string stays empty so unset secrets stay visibly unset.
-func (b *Box) Seal(s string) string {
-	if s == "" || strings.HasPrefix(s, prefix) {
-		return s
-	}
-	nonce := make([]byte, b.aead.NonceSize())
-	rand.Read(nonce)
-	return prefix + base64.StdEncoding.EncodeToString(b.aead.Seal(nonce, nonce, []byte(s), nil))
-}
-
-// Open decrypts a sealed value. A wrong key or damaged data is an error, so a
-// bad key can never silently turn secrets into garbage.
-func (b *Box) Open(s string) (string, error) {
-	if !strings.HasPrefix(s, prefix) {
-		return s, nil
-	}
-	raw, err := base64.StdEncoding.DecodeString(s[len(prefix):])
-	if err != nil || len(raw) < b.aead.NonceSize() {
-		return "", errors.New("damaged secret")
-	}
-	n := b.aead.NonceSize()
-	plain, err := b.aead.Open(nil, raw[:n], raw[n:], nil)
-	if err != nil {
-		return "", errors.New("can't decrypt a stored secret: is HAMMERHEAD_MASTER_KEY the key it was saved with?")
-	}
-	return string(plain), nil
-}

internal/secretbox/secretbox_test.go

@@ -1,51 +0,0 @@
-package secretbox
-
-import (
-	"strings"
-	"testing"
-)
-
-func TestSealOpenRoundTripAndKeys(t *testing.T) {
-	key := GenerateKey()
-	b, err := New(key)
-	if err != nil {
-		t.Fatal(err)
-	}
-	sealed := b.Seal("hunter2")
-	if !strings.HasPrefix(sealed, "enc1:") || strings.Contains(sealed, "hunter2") {
-		t.Fatalf("not sealed: %q", sealed)
-	}
-	if again := b.Seal("hunter2"); again == sealed {
-		t.Error("two seals of the same value must differ (random nonce)")
-	}
-	if b.Seal(sealed) != sealed {
-		t.Error("sealing an already sealed value must not double-encrypt")
-	}
-	if got, err := b.Open(sealed); err != nil || got != "hunter2" {
-		t.Errorf("Open = %q, %v", got, err)
-	}
-	if got, _ := b.Open("legacy plaintext"); got != "legacy plaintext" {
-		t.Errorf("unsealed legacy data should pass through, got %q", got)
-	}
-	if b.Seal("") != "" {
-		t.Error("empty stays empty")
-	}
-
-	other, _ := New(GenerateKey())
-	if _, err := other.Open(sealed); err == nil {
-		t.Error("the wrong key must fail loudly, not return garbage")
-	}
-	if _, err := b.Open(sealed[:len(sealed)-4] + "AAAA"); err == nil {
-		t.Error("tampered data must fail")
-	}
-
-	// a passphrase works as a key, and is stable
-	p1, _ := New("correct horse battery staple")
-	p2, _ := New("correct horse battery staple")
-	if got, err := p2.Open(p1.Seal("x")); err != nil || got != "x" {
-		t.Errorf("passphrase keys must be reproducible: %q %v", got, err)
-	}
-	if _, err := New("  "); err == nil {
-		t.Error("an empty key must be rejected")
-	}
-}

mappings.go

@@ -6,6 +6,8 @@ import (
 	"fmt"
 	"net"
 	"net/http"
+	"net/url"
+	"strconv"
 	"strings"
 	"time"
 
@@ -53,9 +55,39 @@ func listFromCSV(in []string) []string {
 	return out
 }
 
+// normalizeTags trims tags, drops blanks and repeats (ignoring case; the first spelling wins)
+// and keeps the list short enough to stay readable in the dashboard.
+func normalizeTags(in []string) ([]string, error) {
+	var out []string
+	seen := map[string]bool{}
+	for _, t := range in {
+		t = strings.Join(strings.Fields(t), " ")
+		if t == "" || seen[strings.ToLower(t)] {
+			continue
+		}
+		if len([]rune(t)) > 32 {
+			return nil, errors.New("A tag can be at most 32 characters.")
+		}
+		if strings.ContainsAny(t, ",<>\"") {
+			return nil, errors.New("Tags can't contain commas, quotes or angle brackets.")
+		}
+		seen[strings.ToLower(t)] = true
+		out = append(out, t)
+	}
+	if len(out) > 10 {
+		return nil, errors.New("Use at most 10 tags.")
+	}
+	return out, nil
+}
+
 // validateMapping checks m against org c and normalises it. Caller holds s.mu.
 func (s *Server) validateMapping(c *orgCtx, m *model.Mapping) error {
 	m.Name = strings.TrimSpace(m.Name)
+	tags, err := normalizeTags(m.Tags)
+	if err != nil {
+		return err
+	}
+	m.Tags = tags
 	m.Hostname = strings.ToLower(strings.TrimSpace(m.Hostname))
 	m.OrgID = c.Org.ID
 	switch m.Proto {
@@ -67,7 +99,16 @@ func (s *Server) validateMapping(c *orgCtx, m *model.Mapping) error {
 	if edge == nil || !s.edgeAllowedFor(edge, c.Org.ID) {
 		return errors.New("choose an edge")
 	}
-	if len(m.Targets) == 0 {
+	redirect := strings.TrimSpace(m.RedirectTo) != ""
+	if redirect {
+		if !model.Web(m.Proto) {
+			return errors.New("only websites (http or https) can redirect")
+		}
+		m.Targets = []model.Target{} // a redirect has nothing behind it
+	} else {
+		m.RedirectTo, m.RedirectPermanent, m.RedirectKeepPath = "", false, false
+	}
+	if len(m.Targets) == 0 && !redirect {
 		return errors.New("add at least one target")
 	}
 	if m.Proto == model.ProtoUDP && len(m.Targets) > 1 {
@@ -143,9 +184,19 @@ func (s *Server) validateMapping(c *orgCtx, m *model.Mapping) error {
 		return errors.New("PROXY protocol must be v1, v2 or off")
 	}
 	// web-only options
-	if !model.Web(m.Proto) {
+	if redirect {
+		to, err := cleanRedirect(m)
+		if err != nil {
+			return err
+		}
+		m.RedirectTo = to
+	}
+	if !model.Web(m.Proto) || redirect {
 		m.Auth, m.Rules, m.RewriteHost = model.Auth{}, nil, ""
 		m.RedirectHTTP, m.BackendHTTPS, m.HealthPath = false, false, ""
+		if redirect {
+			m.HealthSeconds = -1 // nothing to check
+		}
 	} else {
 		a := &m.Auth
 		a.AllowedRoles, a.AllowedUsers, a.AllowedMails = listFromCSV(a.AllowedRoles), listFromCSV(a.AllowedUsers), listFromCSV(a.AllowedMails)
@@ -232,6 +283,28 @@ func (s *Server) validateMapping(c *orgCtx, m *model.Mapping) error {
 	return nil
 }
 
+// cleanRedirect checks where a redirect sends visitors and refuses a destination that would
+// send them straight back to the same address.
+func cleanRedirect(m *model.Mapping) (string, error) {
+	to := strings.TrimSpace(m.RedirectTo)
+	u, err := url.Parse(to)
+	if err != nil || (u.Scheme != "http" && u.Scheme != "https") || u.Hostname() == "" || u.User != nil {
+		return "", errors.New("Redirect to a full address such as https://www.example.com.")
+	}
+	if len(to) > 2048 || strings.ContainsAny(to, " \t\r\n$") {
+		return "", errors.New("The redirect address is too long or contains spaces or a dollar sign.")
+	}
+	port := u.Port()
+	if port == "" {
+		port = map[string]string{"http": "80", "https": "443"}[u.Scheme]
+	}
+	same := u.Scheme == m.Proto && strings.EqualFold(u.Hostname(), m.Hostname) && port == strconv.Itoa(m.Port)
+	if same && (m.RedirectKeepPath || u.Path == "" || u.Path == "/") {
+		return "", errors.New("That redirect would send visitors back to the same address.")
+	}
+	return to, nil
+}
+
 // portLabel is "25565" or, for a range, "2456-2458".
 func portLabel(m model.Mapping) string {
 	if m.LastPort() > m.Port {

redirects_test.go

@@ -0,0 +1,109 @@
+package hammerhead
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+)
+
+// a redirect is a website with a destination instead of a target
+func TestDomainRedirects(t *testing.T) {
+	s, err := New(t.TempDir(), Options{AdminEmail: "admin@test.local", AdminPassword: "password123", MasterKey: key})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer s.Close()
+	do := apiClient(t, s)
+	var me struct{ Orgs []struct{ ID string } }
+	_, b := do("GET", "/api/me", nil)
+	json.Unmarshal(b, &me)
+	org := me.Orgs[0].ID
+	var edge, site struct{ ID string }
+	_, b = do("POST", "/api/edges", map[string]any{"name": "e", "tunnelAddr": "203.0.113.5:51820"})
+	json.Unmarshal(b, &edge)
+	_, b = do("POST", "/api/orgs/"+org+"/sites", map[string]any{"name": "home"})
+	json.Unmarshal(b, &site)
+	if code, b := do("POST", "/api/orgs/"+org+"/domains", map[string]any{"name": "example.test", "edgeId": edge.ID, "ip": "203.0.113.10"}); code != 200 {
+		t.Fatalf("domain: %d %s", code, b)
+	}
+	base := "/api/orgs/" + org + "/mappings"
+	open := func(m map[string]any) (int, []byte) {
+		m["edgeId"], m["enabled"], m["bindIp"] = edge.ID, true, "0.0.0.0"
+		return do("POST", base, m)
+	}
+
+	// the redirect needs no target, and anything that only makes sense with one is dropped
+	code, raw := open(map[string]any{"proto": "https", "port": 443, "hostname": "old.example.test", "redirectTo": " https://new.example.test/home ", "redirectPermanent": true, "redirectKeepPath": true,
+		"auth": map[string]any{"password": true}, "rewriteHost": "x", "healthPath": "/h"})
+	if code != 200 {
+		t.Fatalf("create redirect: %d %s", code, raw)
+	}
+	var m struct {
+		ID, RedirectTo, RewriteHost, HealthPath string
+		RedirectPermanent, RedirectKeepPath     bool
+		Targets                                 []any
+		HealthSeconds                           int
+		Auth                                    struct{ Password bool }
+	}
+	json.Unmarshal(raw, &m)
+	if m.RedirectTo != "https://new.example.test/home" || !m.RedirectPermanent || !m.RedirectKeepPath || len(m.Targets) != 0 ||
+		m.Auth.Password || m.RewriteHost != "" || m.HealthPath != "" || m.HealthSeconds != -1 {
+		t.Fatalf("redirect was not normalised: %s", raw)
+	}
+
+	// it shares the port with other websites by hostname, like any website
+	if code, raw := open(map[string]any{"proto": "https", "port": 443, "hostname": "app.example.test", "targets": []any{map[string]any{"siteId": site.ID, "host": "127.0.0.1", "port": 8080}}}); code != 200 {
+		t.Fatalf("a website beside the redirect: %d %s", code, raw)
+	}
+	// and its plain-HTTP twin on port 80 is its own resource
+	if code, raw := open(map[string]any{"proto": "http", "port": 80, "hostname": "old.example.test", "redirectTo": "https://new.example.test/home"}); code != 200 {
+		t.Fatalf("http side of the redirect: %d %s", code, raw)
+	}
+
+	for name, in := range map[string]map[string]any{
+		"not a web port":      {"proto": "tcp", "port": 9000, "redirectTo": "https://new.example.test"},
+		"no scheme":           {"proto": "https", "port": 443, "hostname": "a.example.test", "redirectTo": "new.example.test"},
+		"other scheme":        {"proto": "https", "port": 443, "hostname": "a.example.test", "redirectTo": "ftp://new.example.test"},
+		"credentials":         {"proto": "https", "port": 443, "hostname": "a.example.test", "redirectTo": "https://u:p@new.example.test"},
+		"a dollar sign":       {"proto": "https", "port": 443, "hostname": "a.example.test", "redirectTo": "https://new.example.test/$1"},
+		"back to itself":      {"proto": "https", "port": 443, "hostname": "a.example.test", "redirectTo": "https://a.example.test/"},
+		"itself with a path":  {"proto": "https", "port": 443, "hostname": "a.example.test", "redirectTo": "https://a.example.test/x", "redirectKeepPath": true},
+		"host not in domains": {"proto": "https", "port": 443, "hostname": "a.elsewhere.test", "redirectTo": "https://new.example.test"},
+	} {
+		if code, raw := open(in); code != 400 {
+			t.Errorf("%s: expected 400, got %d %s", name, code, raw)
+		}
+	}
+	// http to https on the same name is the normal use, and is allowed
+	if code, raw := open(map[string]any{"proto": "http", "port": 8080, "hostname": "a.example.test", "redirectTo": "https://a.example.test/"}); code != 200 {
+		t.Errorf("an http to https redirect: %d %s", code, raw)
+	}
+
+	// turning a redirect into a normal website needs a target again
+	code, raw = do("PUT", base+"/"+m.ID, map[string]any{"proto": "https", "edgeId": edge.ID, "bindIp": "0.0.0.0", "port": 443, "hostname": "old.example.test", "enabled": true})
+	if code != 400 || !strings.Contains(string(raw), "target") {
+		t.Errorf("a website with no target and no redirect: %d %s", code, raw)
+	}
+
+	// deleting a site must not sweep away redirects, which have no targets
+	if code, raw := do("DELETE", "/api/orgs/"+org+"/sites/"+site.ID, nil); code != 200 {
+		t.Fatalf("delete site: %d %s", code, raw)
+	}
+	_, raw = do("GET", "/api/orgs/"+org+"/state", nil)
+	var st struct {
+		Mappings []struct{ Hostname, RedirectTo string }
+	}
+	json.Unmarshal(raw, &st)
+	var redirects, apps int
+	for _, x := range st.Mappings {
+		if x.RedirectTo != "" {
+			redirects++
+		}
+		if x.Hostname == "app.example.test" {
+			apps++
+		}
+	}
+	if redirects != 3 || apps != 0 {
+		t.Errorf("after deleting the site: %d redirects (want 3), %d apps (want 0): %s", redirects, apps, raw)
+	}
+}

selfedge_test.go

@@ -9,8 +9,8 @@ import (
 	"strings"
 	"testing"
 
-	"git.veillax.com/Veillax/hammerhead/internal/secretbox"
 	"git.veillax.com/Veillax/reef/model"
+	"git.veillax.com/Veillax/reef/secretbox"
 )
 
 func edgeConfigOf(t *testing.T, s *Server, token string) model.EdgeConfig {

server.go

@@ -127,6 +127,7 @@ func (s *Server) Handler() http.Handler {
 	mux.HandleFunc("POST /api/orgs/{org}/apikeys", s.withOrg(true, s.createKey))
 	mux.HandleFunc("DELETE /api/orgs/{org}/apikeys/{id}", s.withOrg(true, s.deleteKey))
 	mux.HandleFunc("POST /api/orgs/{org}/sites", s.withOrg(true, s.addSite))
+	mux.HandleFunc("PUT /api/orgs/{org}/sites/{id}", s.withOrg(true, s.putSite))
 	mux.HandleFunc("DELETE /api/orgs/{org}/sites/{id}", s.withOrg(true, s.deleteSite))
 	mux.HandleFunc("GET /api/orgs/{org}/sites/{id}/containers", s.withOrg(true, s.siteContainers))
 	mux.HandleFunc("POST /api/orgs/{org}/domains", s.withOrg(true, s.addDomain))

store.go

@@ -16,8 +16,8 @@ import (
 	"sync"
 	"time"
 
-	"git.veillax.com/Veillax/hammerhead/internal/secretbox"
 	"git.veillax.com/Veillax/reef/model"
+	"git.veillax.com/Veillax/reef/secretbox"
 	"unicode"
 	"unicode/utf8"
 )

tags_test.go

@@ -0,0 +1,122 @@
+package hammerhead
+
+import (
+	"encoding/json"
+	"reflect"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestNormalizeTags(t *testing.T) {
+	got, err := normalizeTags([]string{" Minecraft ", "minecraft", "", "prod  east", "PROD east"})
+	if err != nil || !reflect.DeepEqual(got, []string{"Minecraft", "prod east"}) {
+		t.Fatalf("got %v, %v", got, err)
+	}
+	if got, err := normalizeTags(nil); err != nil || got != nil {
+		t.Fatalf("nil in should give nil out: %v, %v", got, err)
+	}
+	tooMany := make([]string, 11)
+	for i := range tooMany {
+		tooMany[i] = "t" + strings.Repeat("x", i)
+	}
+	for _, bad := range [][]string{{strings.Repeat("a", 33)}, {"a,b"}, {"<b>"}, tooMany} {
+		if _, err := normalizeTags(bad); err == nil {
+			t.Errorf("accepted %v", bad)
+		}
+	}
+}
+
+func TestSiteTagsAndRenameThroughTheAPI(t *testing.T) {
+	s, err := New(t.TempDir(), Options{AdminEmail: "admin@test.local", AdminPassword: "password123", AlertInterval: time.Hour})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer s.Close()
+	do := apiClient(t, s)
+	_, b := do("GET", "/api/me", nil)
+	var me struct{ Orgs []struct{ ID string } }
+	json.Unmarshal(b, &me)
+	org := me.Orgs[0].ID
+
+	code, raw := do("POST", "/api/orgs/"+org+"/sites", map[string]any{"name": "Home"})
+	if code != 200 {
+		t.Fatalf("add site: %d %s", code, raw)
+	}
+	var site struct{ ID string }
+	json.Unmarshal(raw, &site)
+
+	if code, raw := do("PUT", "/api/orgs/"+org+"/sites/"+site.ID, map[string]any{"name": " Home lab ", "tags": []string{"Lab", "lab", "nas"}}); code != 200 {
+		t.Fatalf("edit site: %d %s", code, raw)
+	}
+	_, raw = do("GET", "/api/orgs/"+org+"/state", nil)
+	var st struct {
+		Sites []struct {
+			ID, Name string
+			Tags     []string
+			Local    bool
+		}
+	}
+	json.Unmarshal(raw, &st)
+	found := false
+	for _, x := range st.Sites {
+		if x.ID == site.ID {
+			found = true
+			if x.Name != "Home lab" || !reflect.DeepEqual(x.Tags, []string{"Lab", "nas"}) {
+				t.Fatalf("site after edit: %+v", x)
+			}
+		}
+	}
+	if !found {
+		t.Fatalf("site missing from state: %s", raw)
+	}
+
+	for name, body := range map[string]map[string]any{"blank name": {"name": " "}, "bad tag": {"name": "x", "tags": []string{"a,b"}}} {
+		if code, _ := do("PUT", "/api/orgs/"+org+"/sites/"+site.ID, body); code != 400 {
+			t.Errorf("%s: expected 400, got %d", name, code)
+		}
+	}
+	if code, _ := do("PUT", "/api/orgs/"+org+"/sites/nope", map[string]any{"name": "x"}); code != 404 {
+		t.Errorf("unknown site: expected 404, got %d", code)
+	}
+}
+
+func TestSandbarKeyIsNeverSentBackAndBlankKeepsIt(t *testing.T) {
+	s, err := New(t.TempDir(), Options{AdminEmail: "admin@test.local", AdminPassword: "password123", AlertInterval: time.Hour})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer s.Close()
+	do := apiClient(t, s)
+	_, b := do("GET", "/api/me", nil)
+	var me struct{ Orgs []struct{ ID string } }
+	json.Unmarshal(b, &me)
+	org := me.Orgs[0].ID
+
+	code, raw := do("POST", "/api/orgs/"+org+"/alerts/channels", map[string]any{"name": "pager", "kind": "sandbar", "target": "https://sandbar.example.com", "token": "sb_topsecret", "policy": "p1", "enabled": true})
+	if code != 200 {
+		t.Fatalf("create channel: %d %s", code, raw)
+	}
+	_, raw = do("GET", "/api/orgs/"+org+"/alerts", nil)
+	if strings.Contains(string(raw), "sb_topsecret") || strings.Contains(string(raw), "sandbar.example.com/api") {
+		t.Fatalf("the overview leaks Sandbar details: %s", raw)
+	}
+	var ov struct {
+		Channels []struct{ ID, Kind, Policy string }
+	}
+	json.Unmarshal(raw, &ov)
+	if len(ov.Channels) != 1 || ov.Channels[0].Kind != "sandbar" || ov.Channels[0].Policy != "p1" {
+		t.Fatalf("overview: %s", raw)
+	}
+	// editing without re-entering the address or key keeps both
+	if code, raw := do("PUT", "/api/orgs/"+org+"/alerts/channels/"+ov.Channels[0].ID, map[string]any{"name": "pager 2", "kind": "sandbar", "policy": "p2", "enabled": true}); code != 200 {
+		t.Fatalf("edit channel: %d %s", code, raw)
+	}
+	s.mu.Lock()
+	ch := s.st.Channels[0]
+	kept := ch.Token == "sb_topsecret" && ch.Target == "https://sandbar.example.com" && ch.Policy == "p2"
+	s.mu.Unlock()
+	if !kept {
+		t.Fatalf("an edit lost the saved key or address: %+v", ch)
+	}
+}

web/index.html

@@ -159,6 +159,10 @@
   .badge-warning { background:var(--warning-bg); color:var(--warning); }
   .badge-danger { background:var(--danger-bg); color:var(--danger); }
   .badge-accent { background:var(--accent-soft); color:var(--accent-text); }
+  .tags { display:flex; flex-wrap:wrap; gap:var(--s1); margin-top:var(--s1); }
+  .tagbar { display:flex; flex-wrap:wrap; gap:var(--s2); margin-bottom:var(--s3); }
+  .chip { min-height:44px; padding:0 var(--s3); border:var(--border-w) solid var(--border); border-radius:var(--radius); background:var(--surface); color:var(--text); font:inherit; cursor:pointer; }
+  .chip.on { background:var(--accent); border-color:var(--accent); color:var(--accent-contrast); }
   .tag { display:inline-block; padding:1px var(--s2); border:var(--border-w) solid var(--border); border-radius:var(--radius); font-size:var(--text-xs); color:var(--text-muted); }
   pre { background:var(--surface-2); border:var(--border-w) solid var(--border); border-radius:var(--radius); padding:var(--s3); overflow:auto; margin:var(--s2) 0 0; user-select:all; white-space:pre-wrap; word-break:break-all; }
 
@@ -271,6 +275,25 @@ const fmtTime = d => new Date(d).toLocaleString(undefined, {month:'short', day:'
 const byId = (list, id) => (list || []).find(x => x.id === id);
 const field = (label, el, hint) => h('label', {}, label, el, hint ? h('span', {class:'sub'}, hint) : null);
 const chk = (label, checked, onchange) => { const i = h('input', {type:'checkbox', checked: !!checked}); if (onchange) i.onchange = () => onchange(i.checked); return Object.assign(h('label', {class:'chk'}, i, label), {box:i}); };
+// ----- tags -----
+// Tags are free-form labels on resources and sites. The filter choice is remembered per list until the page reloads.
+const TAGSEL = {ports:'', sites:''};
+const allTags = (...lists) => [...new Set(lists.flat().flatMap(x => x.tags || []))].sort((a, b) => a.localeCompare(b));
+const hasTag = (x, t) => !t || (x.tags || []).some(v => v.toLowerCase() === t.toLowerCase());
+const tagList = x => (x.tags || []).length ? h('div', {class:'tags'}, x.tags.map(t => h('span', {class:'tag'}, t))) : null;
+function tagInput(tags, known) {
+  const id = 'tags-' + Math.random().toString(36).slice(2, 8);
+  const i = h('input', {value:(tags || []).join(', '), placeholder:'e.g. minecraft, production', list:id});
+  const el = field('Tags', h('div', {}, i, h('datalist', {id}, known.map(t => h('option', {value:t})))), 'Optional. Separate with commas. Use them to filter this list.');
+  return {el, get:() => i.value.split(',').map(t => t.trim()).filter(Boolean)};
+}
+// chips that narrow a list to one tag; pressing the active chip, or "All", clears it
+function tagBar(key, tags) {
+  if (!tags.length) return null;
+  const chip = (label, val) => h('button', {class:'chip' + (TAGSEL[key] === val ? ' on' : ''), type:'button', 'aria-pressed':String(TAGSEL[key] === val),
+    onclick:() => { TAGSEL[key] = TAGSEL[key] === val ? '' : val; refresh(); }}, label);
+  return h('div', {class:'tagbar', role:'group', 'aria-label':'Filter by tag'}, chip('All', ''), tags.map(t => chip(t, t)));
+}
 // ----- versions and updates -----
 // A progress bar and live log for an update. load() returns {running, stage, pct, lines}; the panel polls it
 // until the update is over, and keeps going through the gap while a program restarts into its new version.
@@ -600,7 +623,9 @@ views.ports = async () => {
     S.me.serverAdmin ? h('button', {class:'btn', onclick:() => { selectTab('edges'); history.pushState(null, '', TAB_PATH.edges); render(); }}, 'Go to Edges') : null);
   const unsetDash = !st.dashboardUrl && st.mappings.some(m => m.auth && (m.auth.sso || m.auth.password || m.auth.pin || m.auth.email));
   const traffic = await api('GET', O('/traffic?hours=24')).catch(() => ({}));
-  const rows = st.mappings.slice().sort((a, b) => a.edgeId.localeCompare(b.edgeId) || a.bindIp.localeCompare(b.bindIp) || a.port - b.port);
+  const tags = allTags(st.mappings);
+  if (TAGSEL.ports && !tags.some(t => t.toLowerCase() === TAGSEL.ports.toLowerCase())) TAGSEL.ports = ''; // the last resource with that tag is gone
+  const rows = st.mappings.filter(m => hasTag(m, TAGSEL.ports)).sort((a, b) => a.edgeId.localeCompare(b.edgeId) || a.bindIp.localeCompare(b.bindIp) || a.port - b.port);
   const isWebRow = m => m.proto === 'http' || m.proto === 'https' || m.proto === 'tls';
   const section = (title, list) => list.length ? h('div', {class:'card flush'}, h('div', {class:'sect-h'}, title + ' (' + list.length + ')'), h('div', {class:'scroll'}, h('table', {},
     h('thead', {}, h('tr', {}, ['Status', 'Name', title === 'Websites' ? 'Address' : 'Public address', 'Targets', 'Traffic (24 hours)', ''].map(t => h('th', {}, t)))),
@@ -609,7 +634,7 @@ views.ports = async () => {
   S.headerAction = ['Add resource', () => portForm()];
   const q = h('input', {type:'search', placeholder:'Search resources…', oninput:() => { const t = q.value.toLowerCase(); table.querySelectorAll('tbody tr').forEach(tr => { tr.style.display = tr.textContent.toLowerCase().includes(t) ? '' : 'none'; }); }});
   return h('div', {}, unsetDash ? h('div', {class:'notice'}, 'Some ports have a login in front of them, but the dashboard URL isn\'t set. Visitors are sent back to this address\'s login page, so set it under Server → Settings if people reach Hammerhead by a different address.') : null,
-    rows.length > 5 ? h('div', {class:'toolbar'}, q) : null, table);
+    tagBar('ports', tags), rows.length > 5 ? h('div', {class:'toolbar'}, q) : null, table);
 };
 
 function spark(series) {
@@ -641,23 +666,69 @@ function mappingRow(m, st, series) {
   const pubAddr = web ? m.proto + '://' + (m.hostname || '*') + (m.port === (m.proto === 'https' ? 443 : 80) ? '' : ':' + portText(m)) : (m.hostname ? m.hostname + ' @ ' : '') + m.bindIp + ':' + portText(m);
   return h('tr', {},
     h('td', {title:why}, badge(label, tone)),
-    h('td', {}, h('div', {}, m.name, ' ', h('span', {class:'tag'}, m.proto), m.proxyProtocol ? h('span', {class:'tag', style:'margin-left:4px', title:'the target is told the real client address'}, 'proxy ' + m.proxyProtocol) : null, prot ? h('span', {style:'margin-left:4px', title:'Visitors have to sign in'}, badge('Login', 'accent')) : null),
+    h('td', {}, h('div', {}, m.name, ' ', h('span', {class:'tag'}, m.proto), m.redirectTo ? h('span', {class:'tag', style:'margin-left:4px'}, 'redirect') : null,m.proxyProtocol ? h('span', {class:'tag', style:'margin-left:4px', title:'the target is told the real client address'}, 'proxy ' + m.proxyProtocol) : null, prot ? h('span', {style:'margin-left:4px', title:'Visitors have to sign in'}, badge('Login', 'accent')) : null),
+      tagList(m),
       s.error ? h('div', {class:'err small mono clip', title:s.error}, s.error) : null,
       s.cert && m.proto === 'https' ? h('div', {class:'small clip ' + (s.cert.startsWith('error') ? 'err' : 'dim'), title:s.cert}, 'Certificate: ' + s.cert) : null),
     h('td', {}, h('span', {class:'mono'}, pubAddr), h('div', {class:'dim small'}, (edge ? edge.name : '?') + (web && m.bindIp !== '0.0.0.0' ? ' · ' + m.bindIp : ''))),
-    h('td', {class:'small'}, m.targets.map((t, i) => {
+    h('td', {class:'small'}, m.redirectTo ? h('div', {}, h('span', {class:'mono clip', title:m.redirectTo}, '→ ' + m.redirectTo),
+      h('div', {class:'dim'}, (m.redirectPermanent ? 'Permanent (301)' : 'Temporary (302)') + (m.redirectKeepPath ? ', keeps the path' : ''))) : m.targets.map((t, i) => {
       const th = (s.targets || [])[i], site = byId(st.sites, t.siteId);
       return h('div', {title:th && !th.healthy ? th.detail : '', style:'margin-bottom:4px'}, badge(th ? (th.healthy ? 'Up' : 'Down') : 'Unknown', th ? (th.healthy ? 'success' : 'danger') : ''), ' ', site ? site.name : '?', h('div', {class:'mono'}, t.host + ':' + t.port));
     })),
     h('td', {class:'small dim'}, m.total && m.total.conns ? [`${m.total.conns} conn`, h('br'), `${bytes(m.total.bytesIn)} in, ${bytes(m.total.bytesOut)} out`] : 'None yet', spark(series)),
     h('td', {}, h('div', {class:'actions'},
-      h('button', {class:'ghost', onclick:() => portForm(m)}, 'Edit'),
+      h('button', {class:'ghost', onclick:() => m.redirectTo ? redirectForm(m) : portForm(m)}, 'Edit'),
       h('button', {class:'ghost', onclick: act(async () => { await api('PUT', O('/mappings/' + m.id), {...m, enabled:!m.enabled}); refresh(); })}, m.enabled ? 'Pause' : 'Enable'),
       web && prot ? h('button', {class:'ghost', onclick:() => shareDialog(m)}, 'Share') : null,
       web && prot ? h('button', {class:'ghost', title:'Everyone currently signed in to this resource has to sign in again', onclick: ask({title:`Sign everyone out of ${m.name}?`, body:'Everyone who is signed in to this resource has to sign in again. They can sign back in straight away.', confirm:'Sign out visitors', danger:false}, async () => { await api('POST', O(`/mappings/${m.id}/revoke`)); toast('Visitors signed out'); })}, 'Sign out visitors') : null,
       h('button', {class:'ghost danger', onclick: ask({title:`Close ${m.name}?`, body:'The port closes and visitors can no longer reach it. You can open it again later.', confirm:'Close resource'}, async () => { await api('DELETE', O('/mappings/' + m.id)); refresh(); })}, 'Close'))));
 }
 
+// A redirect sends visitors from one hostname to another address. New ones open the HTTPS side on port 443 and,
+// if asked, the plain HTTP side on port 80, so both ways of typing the old name land on the new one.
+function redirectForm(existing) {
+  const st = S.st, m = existing || {proto:'https', enabled:true, bindIp:'0.0.0.0', redirectPermanent:true, redirectKeepPath:true};
+  const edgeSel = h('select', {}, st.edges.map(e => h('option', {value:e.id, selected:e.id === m.edgeId}, e.name + (e.online ? '' : ' (offline)'))));
+  const ipIn = h('select', {});
+  const refreshIPs = () => {
+    const e = byId(st.edges, edgeSel.value), keep = ipIn.value || m.bindIp || '0.0.0.0';
+    const saved = existing && m.edgeId === edgeSel.value && m.bindIp !== '0.0.0.0' ? [m.bindIp] : [];
+    const ips = [...new Set([...((e && e.ips) || []), ...saved])];
+    const label = ip => { const d = st.domains.filter(x => x.ip === ip).map(x => x.name); return d.length ? `${ip} (${d.join(', ')})` : ip; };
+    ipIn.replaceChildren(h('option', {value:'0.0.0.0'}, 'Every address on the edge'), ...ips.map(ip => h('option', {value:ip}, label(ip))));
+    ipIn.value = ips.includes(keep) ? keep : '0.0.0.0';
+  };
+  edgeSel.onchange = refreshIPs; refreshIPs();
+  const from = h('input', {value:m.hostname || '', list:'rdoms', placeholder:'old.example.com or *.example.com'});
+  const doms = h('datalist', {id:'rdoms'}, st.domains.map(d => h('option', {value:d.name})));
+  const to = h('input', {value:m.redirectTo || '', placeholder:'https://new.example.com'});
+  const kind = h('select', {}, [[true, 'Permanent (301): browsers and search engines remember it'], [false, 'Temporary (302): checked every time']].map(([v, t]) => h('option', {value:String(v), selected:!!m.redirectPermanent === v}, t)));
+  const keep = chk('Keep the path and query, so old.example.com/a?b=1 goes to the same place on the new address', m.redirectKeepPath);
+  const both = chk('Also redirect plain HTTP (port 80)', true);
+  const name = h('input', {value:m.name || '', placeholder:'optional'}), tg = tagInput(m.tags, allTags(st.mappings));
+  const save = act(async () => {
+    const base = {name:name.value, edgeId:edgeSel.value, bindIp:ipIn.value || '0.0.0.0', hostname:from.value, redirectTo:to.value, redirectPermanent:kind.value === 'true',
+      redirectKeepPath:keep.box.checked, tags:tg.get(), enabled:m.enabled !== false, targets:[]};
+    if (existing) { await api('PUT', O('/mappings/' + m.id), {...base, proto:m.proto, port:m.port}); }
+    else {
+      await api('POST', O('/mappings'), {...base, proto:'https', port:443});
+      if (both.box.checked) {
+        try { await api('POST', O('/mappings'), {...base, proto:'http', port:80, name:name.value ? name.value + ' (HTTP)' : ''}); }
+        catch (e) { throw new Error('The HTTPS redirect was added, but the HTTP one could not be: ' + e.message); }
+      }
+    }
+    close(); toast(existing ? 'Redirect saved' : 'Redirect added'); refresh();
+  });
+  const close = modal(existing ? 'Edit redirect' : 'Add a domain redirect', h('div', {class:'stack'},
+    h('p', {class:'dim'}, existing ? `This redirect answers ${m.proto === 'https' ? 'HTTPS on port ' : 'HTTP on port '}${m.port}.` : 'Visitors who open the old address are sent to the new one. HTTPS gets its certificate automatically.'),
+    h('div', {class:'grid'}, field('Redirect this address', from, st.domains.length ? 'Must be under one of your domains' : 'Add a domain on the Domains tab first'), field('To', to, 'A full address, starting with http:// or https://')),
+    doms, field('Type', kind), keep, existing ? null : both,
+    h('div', {class:'grid'}, field('Edge', edgeSel), field('Public IP', ipIn, 'Domains pointed at an address are shown next to it')),
+    h('div', {class:'grid'}, field('Name', name), tg.el),
+    h('div', {class:'actions form-actions'}, h('button', {class:'ghost', onclick:() => close()}, 'Cancel'), h('button', {class:'btn', onclick:save}, existing ? 'Save changes' : 'Add redirect'))), {sticky:true});
+}
+
 function portForm(existing) {
   const st = S.st, m = existing || { proto:'tcp', enabled:true, bindIp:'0.0.0.0', targets:[{siteId:'', host:'127.0.0.1', port:''}], auth:{}, rules:[] };
   const a = m.auth || {};
@@ -665,7 +736,8 @@ function portForm(existing) {
   // the public address is picked from the edge's own addresses, each shown with the domains pointed at it
   const ipIn = h('select', {}), ipList = document.createTextNode('');
   const protoSel = h('select', {disabled:!!existing}, PROTOS.filter(p => !existing || p[0] !== 'both').map(([v, t]) => h('option', {value:v, selected:v === m.proto}, t)));
-  const name = h('input', {value:m.name || '', placeholder:'optional'}), port = h('input', {value:m.port ? portText(m) : '', placeholder:'25565 or 2456-2458'});
+  const tagsIn = tagInput(m.tags, allTags(st.mappings));
+  const name = h('input', {value:m.name || '', placeholder:'optional'}), port =h('input', {value:m.port ? portText(m) : '', placeholder:'25565 or 2456-2458'});
   const host = h('input', {value:m.hostname || '', list:'doms', placeholder:'app.example.com or *.example.com'});
   const domList = h('datalist', {id:'doms'}, st.domains.map(d => h('option', {value:d.name})));
   const hostBox = field('Hostname', host, st.domains.length ? 'Must be under one of your domains' : 'Add a domain on the Domains tab first');
@@ -762,7 +834,7 @@ function portForm(existing) {
     if (!pr) throw new Error('Enter a port like 25565, or a range like 2456-2458');
     const roles = roleChecks.filter(x => x.c.box.checked).map(x => x.r.id);
     const base = {
-      name:name.value, edgeId:edgeSel.value, bindIp:ipIn.value || '0.0.0.0', port:+pr[1], portEnd:pr[2] ? +pr[2] : 0, hostname:host.value, targets,
+      name:name.value, edgeId:edgeSel.value, bindIp:ipIn.value || '0.0.0.0', port:+pr[1], portEnd:pr[2] ? +pr[2] : 0, hostname:host.value, targets, tags:tagsIn.get(),
       enabled:m.enabled !== false, rules:rules.filter(r => r.value.trim()),
       auth:{sso:ssoC.box.checked, password:pwC.box.checked, pin:pinC.box.checked, email:mailC.box.checked, allowedRoles:roles, allowedUsers:a.allowedUsers || [],
         allowedMails:mails.value.split(',').map(s => s.trim()).filter(Boolean), sessionHours:+hours.value || 0},
@@ -777,7 +849,7 @@ function portForm(existing) {
     close(); toast(existing ? `Saved ${base.name || 'the resource'}` : `Added ${base.name || 'the resource'}`); refresh();
   });
   const close = existing ? modal('Edit ' + (m.name || 'resource'), h('div', {class:'stack'},
-    h('div', {class:'grid'}, field('Name', name), field('Edge', edgeSel), field('Public IP', ipIn, 'Domains pointed at an address are shown next to it'), field('Protocol', protoSel), field('Public port', port, 'One port, or a range like 2456-2458 for TCP and UDP')),
+    h('div', {class:'grid'}, field('Name', name), field('Edge', edgeSel), field('Public IP', ipIn, 'Domains pointed at an address are shown next to it'), field('Protocol', protoSel), field('Public port', port, 'One port, or a range like 2456-2458 for TCP and UDP'), tagsIn.el),
     ipList, domList, hostBox, proxyBox, h('fieldset', {}, h('legend', {}, 'Where does the traffic go?'), tgtBox), adv, webBox,
     h('div', {class:'actions form-actions'}, h('button', {class:'ghost', onclick:() => close()}, 'Cancel'), h('button', {class:'btn', onclick:save}, existing ? 'Save changes' : 'Open port'))), {sticky:true}) : wizardModal();
 
@@ -790,6 +862,7 @@ function portForm(existing) {
       ['both', 'TCP + UDP', 'The same port for both, as many games want.'],
       ['tls', 'TLS passthrough', 'Route encrypted traffic by hostname without decrypting it.'],
       ['http', 'Website, plain HTTP', 'No certificate: for internal use or behind another proxy.'],
+      ['redirect', 'Domain redirect', 'Send visitors from one address to another, such as old.example.com to new.example.com.'],
     ];
     const [accessFs, rulesFs, advFs] = [...webBox.children];
     let step = 0, chosen = false;
@@ -829,6 +902,7 @@ function portForm(existing) {
       port.value = t === 'https' || t === 'tls' ? '443' : t === 'http' ? '80' : (targets[0] && targets[0].port ? String(targets[0].port) : '');
     };
     const pick = v => {
+      if (v === 'redirect') { close(); redirectForm(); return; }
       protoSel.value = v; chosen = true; protoSel.onchange();
       if (v === 'https') redir.box.checked = true;
       port.value = ''; step = 1; draw();
@@ -869,7 +943,7 @@ function portForm(existing) {
       } else if (cur === 'access') {
         kids.push(accessFs);
       } else {
-        kids.push(field('Name', name, 'Optional. Shown in the list.'), h('div', {class:'card', style:'background:var(--surface-2); margin:0'}, summary()),
+        kids.push(field('Name', name, 'Optional. Shown in the list.'), tagsIn.el, h('div', {class:'card', style:'background:var(--surface-2); margin:0'}, summary()),
           h('details', {}, h('summary', {class:'small dim', style:'cursor:pointer'}, 'More options (health checks' + (isWeb() ? ', rules, redirects' : '') + ')'),
             h('div', {class:'stack', style:'margin-top:10px'}, adv, ...(isWeb() ? [rulesFs, advFs] : []))));
       }
@@ -910,10 +984,19 @@ views.sites = async () => {
     h('p', {class:'dim'}, 'A site is a private network that holds your services. Every edge also has a built-in "this machine" site for services on the same box as Blacktip.'), field('Name', name),
     h('div', {class:'actions form-actions'}, h('button', {class:'ghost', onclick:() => close()}, 'Cancel'), h('button', {class:'btn', onclick:() => { close(); add(); }}, 'Add site')))); }];
   const latest = await latestVersions();
+  const tags = allTags(st.sites);
+  if (TAGSEL.sites && !tags.some(t => t.toLowerCase() === TAGSEL.sites.toLowerCase())) TAGSEL.sites = '';
+  const editSite = s => { // rename a site and set its tags
+    const nm = h('input', {value:s.name}), tg = tagInput(s.tags, tags);
+    const close = modal('Edit ' + s.name, h('div', {class:'stack'}, field('Name', nm), tg.el,
+      h('div', {class:'actions form-actions'}, h('button', {class:'ghost', onclick:() => close()}, 'Cancel'),
+        h('button', {class:'btn', onclick: act(async () => { await api('PUT', O('/sites/' + s.id), {name:nm.value, tags:tg.get()}); close(); toast('Saved ' + nm.value.trim()); refresh(); })}, 'Save changes'))));
+  };
   return h('div', {},
+    tagBar('sites', tags),
     card('', h('table', {}, h('thead', {}, h('tr', {}, ['Status', 'Name', 'Kind', 'Tunnels to', 'Version', 'Containers', ''].map(t => h('th', {}, t)))),
-      h('tbody', {}, st.sites.map(s => h('tr', {},
-        h('td', {}, st.online[s.id] ? badge('Online', 'success') : badge('Offline', 'danger')), h('td', {}, s.name),
+      h('tbody', {}, st.sites.filter(s => hasTag(s, TAGSEL.sites)).map(s => h('tr', {},
+        h('td', {}, st.online[s.id] ? badge('Online', 'success') : badge('Offline', 'danger')), h('td', {}, s.name, tagList(s)),
         h('td', {}, s.local ? 'This machine' : 'Bamboo agent'),
         h('td', {}, s.local ? 'Direct' : ((s.connected || []).map(id => (byId(st.edges, id) || {name:id}).name).join(', ') || 'nothing connected')),
         s.local ? h('td', {class:'dim'}, 'Same as its edge') : versionCell(s, latest.bamboo, !!s.updateId, O(`/sites/${s.id}/update`), O(`/sites/${s.id}/update/log`)),
@@ -922,6 +1005,7 @@ views.sites = async () => {
           modal('Containers on ' + s.name, l.length ? h('table', {}, h('thead', {}, h('tr', {}, ['Name', 'Image', 'Ports'].map(t => h('th', {}, t)))), h('tbody', {}, l.map(c => h('tr', {}, h('td', {}, c.name), h('td', {class:'dim'}, c.image), h('td', {class:'mono small'}, c.ports.map(p => (p.public ? p.public + '→' : '') + p.private + '/' + p.type).join(', ')))))) :
             h('p', {class:'dim'}, 'None reported. Start the agent with --docker (or BLACKTIP_DOCKER=1 / BAMBOO_DOCKER=1) on a machine where Docker is running.')); })}, 'View')),
         h('td', {}, s.local ? null : h('div', {class:'actions'},
+          h('button', {class:'ghost', onclick:() => editSite(s)}, 'Edit'),
           h('button', {class:'ghost', onclick:() => showCmd(s)}, 'Show command'),
           h('button', {class:'ghost danger', onclick: ask({title:`Delete ${s.name}?`, body:'Every port that uses only this site is deleted with it, and its agent loses its connection. This cannot be undone.', confirm:'Delete site'}, async () => { await api('DELETE', O('/sites/' + s.id)); refresh(); })}, 'Delete')))))))));
 };
@@ -1056,26 +1140,32 @@ const FORMATS = [['json', 'JSON'], ['slack', 'Slack'], ['discord', 'Discord'], [
 function channelForm(base, existing, trusted) {
   const c = existing || {kind:'email', format:'json', enabled:true};
   const name = h('input', {value:c.name || '', placeholder:'e.g. On-call'});
-  const kind = h('select', {}, [['email', 'Email'], ['webhook', 'Webhook']].map(([v, t]) => h('option', {value:v, selected:v === c.kind}, t)));
+  const kind = h('select', {}, [['email', 'Email'], ['sandbar', 'Sandbar'], ['webhook', 'Webhook']].map(([v, t]) => h('option', {value:v, selected:v === c.kind}, t)));
   const target = h('input', {value:c.kind === 'email' ? c.target || '' : '', placeholder:c.kind === 'webhook' && existing ? 'unchanged' : ''});
+  const token = h('input', {type:'password', autocomplete:'off', placeholder:existing && c.kind === 'sandbar' ? 'unchanged' : 'sb_…'});
+  const policy = h('input', {value:c.policy || '', placeholder:'Optional'});
+  const sandbarBox = h('div', {class:'grid'}, field('API key', token, 'Create one on Sandbar\'s Account page.'), field('Escalation policy ID', policy, 'Who gets paged. Leave blank to send alerts without paging anyone.'));
   const fmt = h('select', {}, FORMATS.map(([v, t]) => h('option', {value:v, selected:v === (c.format || 'json')}, t)));
   const priv = chk('This address is on a private network (like a home server)', c.allowPrivate);
   const en = chk('Enabled', c.enabled !== false);
   const fmtBox = field('Webhook format', fmt, 'Slack and Discord incoming-webhook URLs work as they are. ntfy sends a push notification.');
   const targetBox = field('Where', target);
   const redraw = () => {
-    const w = kind.value === 'webhook';
+    const w = kind.value === 'webhook', sb = kind.value === 'sandbar';
     fmtBox.style.display = w ? '' : 'none';
-    priv.style.display = w && trusted ? '' : 'none';
-    target.placeholder = w ? (existing && c.kind === 'webhook' ? 'unchanged (it may contain a secret token)' : 'https://hooks.example.com/…') : 'you@example.com, oncall@example.com';
+    sandbarBox.style.display = sb ? '' : 'none';
+    priv.style.display = (w || sb) && trusted ? '' : 'none';
+    targetBox.firstChild.textContent =sb ? 'Sandbar address' : 'Where';
+    target.placeholder = sb ? (existing && c.kind === 'sandbar' ? 'unchanged' : 'https://sandbar.example.com') :
+      w ? (existing && c.kind === 'webhook' ? 'unchanged (it may contain a secret token)' : 'https://hooks.example.com/…') : 'you@example.com, oncall@example.com';
   };
   kind.onchange = redraw; redraw();
   const save = act(async () => {
-    await api(existing ? 'PUT' : 'POST', base + '/channels' + (existing ? '/' + existing.id : ''), {name:name.value, kind:kind.value, target:target.value, format:kind.value === 'webhook' ? fmt.value : '', allowPrivate:trusted && priv.box.checked, enabled:en.box.checked});
+    await api(existing ? 'PUT' : 'POST', base + '/channels' + (existing ? '/' + existing.id : ''), {name:name.value, kind:kind.value, target:target.value, format:kind.value === 'webhook' ? fmt.value : '', token:token.value, policy:policy.value, allowPrivate:trusted && priv.box.checked, enabled:en.box.checked});
     close(); toast(existing ? 'Alert channel saved' : 'Alert channel added'); refresh();
   });
   const close = modal(existing ? 'Edit channel' : 'Add an alert channel', h('div', {class:'stack'},
-    h('div', {class:'grid'}, field('Name', name), field('Type', kind)), targetBox, fmtBox, priv, en,
+    h('div', {class:'grid'}, field('Name', name), field('Type', kind)), targetBox, sandbarBox, fmtBox, priv, en,
     h('div', {class:'actions form-actions'}, h('button', {class:'ghost', onclick:() => close()}, 'Cancel'), h('button', {class:'btn', onclick:save}, 'Save'))), {sticky:true});
 }
 
@@ -1083,7 +1173,7 @@ async function alertsView(base, scoped, trusted) {
   const d = await api('GET', base);
   const channels = h('table', {}, h('thead', {}, h('tr', {}, ['Name', 'Type', 'Sends to', ''].map(x => h('th', {}, x)))),
     h('tbody', {}, d.channels.map(c => h('tr', {}, h('td', {}, c.name, c.enabled ? null : h('span', {class:'tag', style:'margin-left:6px'}, 'off')),
-      h('td', {}, c.kind === 'email' ? 'Email' : 'Webhook (' + c.format + ')'), h('td', {class:'mono small'}, c.preview),
+      h('td', {}, c.kind === 'email' ? 'Email' : c.kind === 'sandbar' ? 'Sandbar' : 'Webhook (' + c.format + ')'), h('td', {class:'mono small'}, c.preview),
       h('td', {}, h('div', {class:'actions'},
         h('button', {class:'ghost', onclick: act(async () => { await api('POST', base + '/channels/' + c.id + '/test'); toast('Test sent'); })}, 'Send test'),
         h('button', {class:'ghost', onclick:() => channelForm(base, c, trusted)}, 'Edit'),
@@ -1091,11 +1181,11 @@ async function alertsView(base, scoped, trusted) {
   const debounce = h('input', {type:'number', min:1, max:120, value:d.settings.debounceMin}), repeat = h('input', {type:'number', min:0, max:168, value:d.settings.repeatHours});
   S.headerAction = ['Add channel', () => channelForm(base, null, trusted)];
   return h('div', {},
-    !d.emailConfigured ? h('div', {class:'notice'}, 'Email alerts need an email server. Set one up under Server → Settings, or use a webhook.') : null,
+    !d.emailConfigured ? h('div', {class:'notice'}, 'Email alerts need an email server. Set one up under Server → Settings, or use Sandbar or a webhook.') : null,
     card('Right now', d.active.length ? h('table', {}, h('tbody', {}, d.active.map(a => h('tr', {}, h('td', {}, a.fired ? badge('Firing', 'danger') : badge('Waiting', 'warning')), h('td', {}, a.message), h('td', {class:'dim small'}, 'since ' + ago(a.since)))))) :
       emptyState('check', 'Nothing is wrong', 'Problems that are firing or about to fire appear here.')),
     card('Where alerts go',
-      d.channels.length ? channels : emptyState('alerts', 'No channels yet', 'Add an email address or a webhook to be told when something stops working.')),
+      d.channels.length ? channels : emptyState('alerts', 'No channels yet', 'Add an email address, a Sandbar server or a webhook to be told when something stops working.')),
     scoped ? card('Timing', h('p', {class:'dim'}, 'A problem has to last this long before you are told, so a restart or a brief blip stays quiet. You get one message when it starts and one when it clears.'),
       h('div', {class:'grid'}, field('Wait this many minutes first', debounce), field('Remind me every (hours)', repeat, 'Use 0 to send no reminders'),
         h('button', {class:'ghost', onclick: act(async () => { await api('PUT', base + '/settings', {debounceMin:+debounce.value, repeatHours:+repeat.value}); toast('Alert timing saved'); })}, 'Save timing'))) : null,