refactor(web): pass render URL state explicitly

Signed-off-by: Jason Cameron <jason.cameron@stanwith.me>

docs/docs/CHANGELOG.md

@@ -14,7 +14,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 <!-- This changes the project to: -->
 
 - Patch [GHSA-6wcg-mqvh-fcvg](https://github.com/TecharoHQ/anubis/security/advisories/GHSA-6wcg-mqvh-fcvg) by containing subrequest logic to Anubis instances in subrequest mode.
-- Implement robot9001 style delays on the honeypot feature so that the first hit takes 1 millisecond, the second takes 2, etc.
 - Move metrics server configuration to [the policy file](./admin/policies.mdx#metrics-server).
 - Expose [pprof endpoints](https://pkg.go.dev/net/http/pprof) on the metrics listener to enable profiling Anubis in production.
 - fix: prevent nil pointer panic in challenge validation when threshold rules match during PassChallenge (#1463)
@@ -29,6 +28,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix a bug in the dataset poisoning maze that could allow denial of service [#1580](https://github.com/TecharoHQ/anubis/issues/1580).
 - Add config option to add ASN to logs/metrics.
 - Log weight when issuing challenge
+- Keep Anubis server URL state local to each `lib.Server` instance to make embedded use safer.
 
 ## v1.25.0: Necron
 

go.mod

@@ -106,7 +106,7 @@ require (
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.6.2 // indirect
 	github.com/go-git/go-git/v5 v5.16.2 // indirect
-	github.com/go-jose/go-jose/v3 v3.0.5 // indirect
+	github.com/go-jose/go-jose/v3 v3.0.4 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect

go.sum

@@ -189,8 +189,8 @@ github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399 h1:eMj
 github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399/go.mod h1:1OCfN199q1Jm3HZlxleg+Dw/mwps2Wbk9frAWm+4FII=
 github.com/go-git/go-git/v5 v5.16.2 h1:fT6ZIOjE5iEnkzKyxTHK1W4HGAsPhqEqiSAssSO77hM=
 github.com/go-git/go-git/v5 v5.16.2/go.mod h1:4Ge4alE/5gPs30F2H1esi2gPd69R0C39lolkucHBOp8=
-github.com/go-jose/go-jose/v3 v3.0.5 h1:BLLJWbC4nMZOfuPVxoZIxeYsn6Nl2r1fITaJ78UQlVQ=
+github.com/go-jose/go-jose/v3 v3.0.4 h1:Wp5HA7bLQcKnf6YYao/4kpRpVMp/yf6+pJKV8WFSaNY=
-github.com/go-jose/go-jose/v3 v3.0.5/go.mod h1:5b+7YgP7ZICgJDBdfjZaIt+H/9L9T/YQrVfLAMboGkQ=
+github.com/go-jose/go-jose/v3 v3.0.4/go.mod h1:5b+7YgP7ZICgJDBdfjZaIt+H/9L9T/YQrVfLAMboGkQ=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
 github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=

internal/honeypot/naive/naive.go

@@ -5,7 +5,6 @@ import (
 	_ "embed"
 	"fmt"
 	"log/slog"
-	"math"
 	"math/rand/v2"
 	"net/http"
 	"net/netip"
@@ -169,9 +168,6 @@ func (i *Impl) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	millisecondAmount := math.Pow(float64(networkCount), 2)
-	time.Sleep(time.Duration(millisecondAmount) * time.Millisecond)
-
 	spins := i.makeSpins()
 	affirmations := i.makeAffirmations()
 	title := i.makeTitle()

lib/anubis.go

@@ -33,6 +33,7 @@ import (
 	"github.com/TecharoHQ/anubis/lib/policy"
 	"github.com/TecharoHQ/anubis/lib/policy/checker"
 	"github.com/TecharoHQ/anubis/lib/store"
+	"github.com/TecharoHQ/anubis/web"
 	iptoasnv1 "github.com/TecharoHQ/thoth-proto/gen/techaro/thoth/iptoasn/v1"
 
 	// challenge implementations
@@ -97,6 +98,8 @@ type Server struct {
 	OGTags      *ogtags.OGTagCache
 	logger      *slog.Logger
 	opts        Options
+	basePrefix  string
+	publicURL   string
 	ed25519Priv ed25519.PrivateKey
 	hs512Secret []byte
 }
@@ -123,6 +126,42 @@ func (s *Server) getRequestLogger(r *http.Request) (*slog.Logger, *http.Request)
 	return lg, r
 }
 
+func (s *Server) configuredBasePrefix() string {
+	if s.basePrefix != "" {
+		return s.basePrefix
+	}
+	return strings.TrimRight(s.opts.BasePrefix, "/")
+}
+
+func (s *Server) configuredPublicURL() string {
+	if s.publicURL != "" {
+		return s.publicURL
+	}
+	return s.opts.PublicUrl
+}
+
+func (s *Server) prefixedPath(path string) string {
+	if !strings.HasPrefix(path, "/") {
+		path = "/" + path
+	}
+	return s.configuredBasePrefix() + path
+}
+
+func (s *Server) cookiePath() string {
+	basePrefix := s.configuredBasePrefix()
+	if basePrefix == "" {
+		return "/"
+	}
+	return basePrefix + "/"
+}
+
+func (s *Server) renderOptions() web.Options {
+	return web.Options{
+		BasePrefix: s.configuredBasePrefix(),
+		PublicURL:  s.configuredPublicURL(),
+	}
+}
+
 func (s *Server) getTokenKeyfunc() jwt.Keyfunc {
 	// return ED25519 key if HS512 is not set
 	if len(s.hs512Secret) == 0 {
@@ -246,11 +285,7 @@ func (s *Server) maybeReverseProxy(w http.ResponseWriter, r *http.Request, httpS
 		return
 	}
 
-	// Adjust cookie path if base prefix is not empty
+	cookiePath := s.cookiePath()
-	cookiePath := "/"
-	if anubis.BasePrefix != "" {
-		cookiePath = strings.TrimSuffix(anubis.BasePrefix, "/") + "/"
-	}
 
 	cr, rule, err := s.check(r, lg)
 	if err != nil {
@@ -344,11 +379,7 @@ func (s *Server) maybeReverseProxy(w http.ResponseWriter, r *http.Request, httpS
 }
 
 func (s *Server) checkRules(w http.ResponseWriter, r *http.Request, cr policy.CheckResult, lg *slog.Logger, rule *policy.Bot) bool {
-	// Adjust cookie path if base prefix is not empty
+	cookiePath := s.cookiePath()
-	cookiePath := "/"
-	if anubis.BasePrefix != "" {
-		cookiePath = strings.TrimSuffix(anubis.BasePrefix, "/") + "/"
-	}
 
 	localizer := localization.GetLocalizer(r)
 
@@ -511,11 +542,7 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// Adjust cookie path if base prefix is not empty
+	cookiePath := s.cookiePath()
-	cookiePath := "/"
-	if anubis.BasePrefix != "" {
-		cookiePath = strings.TrimSuffix(anubis.BasePrefix, "/") + "/"
-	}
 
 	if _, err := r.Cookie(anubis.TestCookieName); errors.Is(err, http.ErrNoCookie) {
 		s.ClearCookie(w, CookieOpts{Path: cookiePath, Host: r.Host})

lib/anubis_test.go

@@ -2,6 +2,7 @@ package lib
 
 import (
 	"bytes"
+	"compress/gzip"
 	"context"
 	"encoding/json"
 	"fmt"
@@ -501,8 +502,11 @@ func TestBasePrefix(t *testing.T) {
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
-			// Reset the global BasePrefix before each test
+			originalBasePrefix := anubis.BasePrefix
-			anubis.BasePrefix = ""
+			anubis.BasePrefix = "/not-this-server"
+			t.Cleanup(func() {
+				anubis.BasePrefix = originalBasePrefix
+			})
 
 			pol := loadPolicies(t, "", 4)
 
@@ -631,10 +635,96 @@ func TestBasePrefix(t *testing.T) {
 			if ckie.Path != expectedPath {
 				t.Errorf("cookie path is wrong, wanted %s, got: %s", expectedPath, ckie.Path)
 			}
+
+			if anubis.BasePrefix != "/not-this-server" {
+				t.Errorf("New should not overwrite anubis.BasePrefix, got %q", anubis.BasePrefix)
+			}
 		})
 	}
 }
 
+func TestBasePrefixUsesServerConfigNotPackageGlobal(t *testing.T) {
+	originalBasePrefix := anubis.BasePrefix
+	anubis.BasePrefix = "/global"
+	t.Cleanup(func() {
+		anubis.BasePrefix = originalBasePrefix
+	})
+
+	pol := loadPolicies(t, "", 4)
+	srv := spawnAnubis(t, Options{
+		Next:       http.NewServeMux(),
+		Policy:     pol,
+		BasePrefix: "/local/",
+	})
+
+	if anubis.BasePrefix != "/global" {
+		t.Fatalf("New should leave anubis.BasePrefix alone, got %q", anubis.BasePrefix)
+	}
+
+	req := httptest.NewRequest(http.MethodPost, "/local/.within.website/x/cmd/anubis/api/make-challenge?redir=/", nil)
+	req.Header.Set("X-Real-Ip", "127.0.0.1")
+	rr := httptest.NewRecorder()
+
+	srv.ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusOK {
+		t.Fatalf("expected local server prefix route to work, got status %d body %q", rr.Code, rr.Body.String())
+	}
+}
+
+func TestRenderIndexUsesServerBasePrefixNotPackageGlobal(t *testing.T) {
+	originalBasePrefix := anubis.BasePrefix
+	anubis.BasePrefix = "/global"
+	t.Cleanup(func() {
+		anubis.BasePrefix = originalBasePrefix
+	})
+
+	pol := loadPolicies(t, "", 4)
+	srv := spawnAnubis(t, Options{
+		Next:       http.NewServeMux(),
+		Policy:     pol,
+		BasePrefix: "/local/",
+	})
+
+	req := httptest.NewRequest(http.MethodGet, "/local/protected", nil)
+	req.Header.Set("X-Real-Ip", "127.0.0.1")
+	req.Header.Set("User-Agent", "Mozilla/5.0")
+	req.Header.Set("Accept-Encoding", "gzip")
+	rr := httptest.NewRecorder()
+
+	srv.ServeHTTP(rr, req)
+
+	resp := rr.Result()
+	defer resp.Body.Close()
+
+	var body strings.Builder
+	reader := io.Reader(resp.Body)
+	if resp.Header.Get("Content-Encoding") == "gzip" {
+		gzipReader, err := gzip.NewReader(resp.Body)
+		if err != nil {
+			t.Fatalf("opening gzip response should not fail: %v", err)
+		}
+		defer gzipReader.Close()
+		reader = gzipReader
+	}
+	if _, err := io.Copy(&body, reader); err != nil {
+		t.Fatalf("reading challenge response should not fail: %v", err)
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		t.Fatalf("expected challenge status %d, got %d body %q", http.StatusOK, resp.StatusCode, body.String())
+	}
+	if !strings.Contains(body.String(), "/local/.within.website/x/cmd/anubis/static/js/main.mjs") {
+		t.Fatalf("expected challenge assets to use server base prefix, body %q", body.String())
+	}
+	if strings.Contains(body.String(), "/global/.within.website") {
+		t.Fatalf("challenge body used package global base prefix: %q", body.String())
+	}
+	if anubis.BasePrefix != "/global" {
+		t.Fatalf("rendering should leave anubis.BasePrefix alone, got %q", anubis.BasePrefix)
+	}
+}
+
 func TestCustomStatusCodes(t *testing.T) {
 	h := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		t.Log(r.UserAgent())

lib/challenge/interface.go

@@ -44,6 +44,7 @@ func Methods() []string {
 }
 
 type IssueInput struct {
+	BasePrefix string
 	Impressum  *config.Impressum
 	Rule       *policy.Bot
 	Challenge  *Challenge

lib/challenge/metarefresh/metarefresh.go

@@ -7,7 +7,6 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/TecharoHQ/anubis"
 	"github.com/TecharoHQ/anubis/lib/challenge"
 	"github.com/TecharoHQ/anubis/lib/localization"
 	"github.com/a-h/templ"
@@ -28,7 +27,7 @@ func (i *Impl) Issue(w http.ResponseWriter, r *http.Request, lg *slog.Logger, in
 		return nil, err
 	}
 
-	u, err := r.URL.Parse(anubis.BasePrefix + "/.within.website/x/cmd/anubis/api/pass-challenge")
+	u, err := r.URL.Parse(in.BasePrefix + "/.within.website/x/cmd/anubis/api/pass-challenge")
 	if err != nil {
 		return nil, fmt.Errorf("can't render page: %w", err)
 	}
@@ -47,7 +46,7 @@ func (i *Impl) Issue(w http.ResponseWriter, r *http.Request, lg *slog.Logger, in
 
 	loc := localization.GetLocalizer(r)
 
-	result := page(u.String(), in.Rule.Challenge.Difficulty, showMeta, loc)
+	result := page(in.BasePrefix, u.String(), in.Rule.Challenge.Difficulty, showMeta, loc)
 
 	return result, nil
 }

lib/challenge/metarefresh/metarefresh.templ

@@ -7,10 +7,10 @@ import (
 	"github.com/TecharoHQ/anubis/lib/localization"
 )
 
-templ page(redir string, difficulty int, showMeta bool, loc *localization.SimpleLocalizer) {
+templ page(basePrefix, redir string, difficulty int, showMeta bool, loc *localization.SimpleLocalizer) {
 	<div class="centered-div">
-		<img id="image" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version }/>
+		<img id="image" style="width:100%;max-width:256px;" src={ basePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version }/>
-		<img style="display:none;" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version }/>
+		<img style="display:none;" style="width:100%;max-width:256px;" src={ basePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version }/>
 		<p id="status">{ loc.T("loading") }</p>
 		<p>{ loc.T("connection_security") }</p>
 		if showMeta {

lib/challenge/metarefresh/metarefresh_templ.go

@@ -15,7 +15,7 @@ import (
 	"github.com/TecharoHQ/anubis/lib/localization"
 )
 
-func page(redir string, difficulty int, showMeta bool, loc *localization.SimpleLocalizer) templ.Component {
+func page(basePrefix, redir string, difficulty int, showMeta bool, loc *localization.SimpleLocalizer) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
@@ -41,9 +41,9 @@ func page(redir string, difficulty int, showMeta bool, loc *localization.SimpleL
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var2 string
-		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(basePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `metarefresh.templ`, Line: 12, Col: 165}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `metarefresh.templ`, Line: 12, Col: 158}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var2))
 		if templ_7745c5c3_Err != nil {
@@ -54,9 +54,9 @@ func page(redir string, difficulty int, showMeta bool, loc *localization.SimpleL
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var3 string
-		templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(basePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `metarefresh.templ`, Line: 13, Col: 174}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `metarefresh.templ`, Line: 13, Col: 167}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var3))
 		if templ_7745c5c3_Err != nil {

lib/challenge/preact/preact.go

@@ -10,7 +10,6 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/TecharoHQ/anubis"
 	"github.com/TecharoHQ/anubis/internal"
 	"github.com/TecharoHQ/anubis/lib/challenge"
 	"github.com/TecharoHQ/anubis/lib/localization"
@@ -43,7 +42,7 @@ func (i *impl) Issue(w http.ResponseWriter, r *http.Request, lg *slog.Logger, in
 		return nil, err
 	}
 
-	u, err := r.URL.Parse(anubis.BasePrefix + "/.within.website/x/cmd/anubis/api/pass-challenge")
+	u, err := r.URL.Parse(in.BasePrefix + "/.within.website/x/cmd/anubis/api/pass-challenge")
 	if err != nil {
 		return nil, fmt.Errorf("can't render page: %w", err)
 	}
@@ -55,7 +54,7 @@ func (i *impl) Issue(w http.ResponseWriter, r *http.Request, lg *slog.Logger, in
 
 	loc := localization.GetLocalizer(r)
 
-	result := page(u.String(), in.Challenge.RandomData, in.Rule.Challenge.Difficulty, loc)
+	result := page(in.BasePrefix, u.String(), in.Challenge.RandomData, in.Rule.Challenge.Difficulty, loc)
 
 	return result, nil
 }

lib/challenge/preact/preact.templ

@@ -5,10 +5,10 @@ import (
 	"github.com/TecharoHQ/anubis/lib/localization"
 )
 
-templ page(redir, challenge string, difficulty int, loc *localization.SimpleLocalizer) {
+templ page(basePrefix, redir, challenge string, difficulty int, loc *localization.SimpleLocalizer) {
 	<div class="centered-div">
 		<div id="app">
-			<img id="image" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version }/>
+			<img id="image" style="width:100%;max-width:256px;" src={ basePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version }/>
 			<p id="status">{ loc.T("loading") }</p>
 			<p>{ loc.T("connection_security") }</p>
 		</div>
@@ -18,7 +18,7 @@ templ page(redir, challenge string, difficulty int, loc *localization.SimpleLoca
 			"difficulty":                  difficulty,
 			"connection_security_message": loc.T("connection_security"),
 			"loading_message":             loc.T("loading"),
-			"pensive_url":                 anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version,
+			"pensive_url":                 basePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version,
 		})
 		@templ.ComponentFunc(renderAppJS)
 		<noscript>

lib/challenge/preact/preact_templ.go

@@ -13,7 +13,7 @@ import (
 	"github.com/TecharoHQ/anubis/lib/localization"
 )
 
-func page(redir, challenge string, difficulty int, loc *localization.SimpleLocalizer) templ.Component {
+func page(basePrefix, redir, challenge string, difficulty int, loc *localization.SimpleLocalizer) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
@@ -39,9 +39,9 @@ func page(redir, challenge string, difficulty int, loc *localization.SimpleLocal
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var2 string
-		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(basePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `preact.templ`, Line: 11, Col: 166}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `preact.templ`, Line: 11, Col: 159}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var2))
 		if templ_7745c5c3_Err != nil {
@@ -83,7 +83,7 @@ func page(redir, challenge string, difficulty int, loc *localization.SimpleLocal
 			"difficulty":                  difficulty,
 			"connection_security_message": loc.T("connection_security"),
 			"loading_message":             loc.T("loading"),
-			"pensive_url":                 anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version,
+			"pensive_url":                 basePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version,
 		}).Render(ctx, templ_7745c5c3_Buffer)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err

lib/challenge/proofofwork/proofofwork.go

@@ -29,7 +29,7 @@ func (i *Impl) Setup(mux *http.ServeMux) {}
 
 func (i *Impl) Issue(w http.ResponseWriter, r *http.Request, lg *slog.Logger, in *chall.IssueInput) (templ.Component, error) {
 	loc := localization.GetLocalizer(r)
-	return page(loc), nil
+	return page(in.BasePrefix, loc), nil
 }
 
 func (i *Impl) Validate(r *http.Request, lg *slog.Logger, in *chall.ValidateInput) error {

lib/challenge/proofofwork/proofofwork.templ

@@ -5,12 +5,12 @@ import (
 	"github.com/TecharoHQ/anubis/lib/localization"
 )
 
-templ page(localizer *localization.SimpleLocalizer) {
+templ page(basePrefix string, localizer *localization.SimpleLocalizer) {
 	<div class="centered-div">
-		<img id="image" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version }/>
+		<img id="image" style="width:100%;max-width:256px;" src={ basePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version }/>
-		<img style="display:none;" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version }/>
+		<img style="display:none;" style="width:100%;max-width:256px;" src={ basePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version }/>
 		<p id="status">{ localizer.T("loading") }</p>
-		<script async type="module" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/js/main.mjs?cacheBuster=" + anubis.Version }></script>
+		<script async type="module" src={ basePrefix + "/.within.website/x/cmd/anubis/static/js/main.mjs?cacheBuster=" + anubis.Version }></script>
 		<div id="progress" role="progressbar" aria-labelledby="status">
 			<div class="bar-inner"></div>
 		</div>

lib/challenge/proofofwork/proofofwork_templ.go

@@ -13,7 +13,7 @@ import (
 	"github.com/TecharoHQ/anubis/lib/localization"
 )
 
-func page(localizer *localization.SimpleLocalizer) templ.Component {
+func page(basePrefix string, localizer *localization.SimpleLocalizer) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
@@ -39,9 +39,9 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var2 string
-		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(basePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 10, Col: 165}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 10, Col: 158}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var2))
 		if templ_7745c5c3_Err != nil {
@@ -52,9 +52,9 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var3 string
-		templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(basePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 11, Col: 174}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 11, Col: 167}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var3))
 		if templ_7745c5c3_Err != nil {
@@ -78,9 +78,9 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var5 string
-		templ_7745c5c3_Var5, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/js/main.mjs?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var5, templ_7745c5c3_Err = templ.JoinStringErrs(basePrefix + "/.within.website/x/cmd/anubis/static/js/main.mjs?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 13, Col: 136}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 13, Col: 129}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var5))
 		if templ_7745c5c3_Err != nil {

lib/config.go

@@ -112,8 +112,7 @@ func New(opts Options) (*Server, error) {
 		opts.ED25519PrivateKey = priv
 	}
 
-	anubis.BasePrefix = strings.TrimRight(opts.BasePrefix, "/")
+	opts.BasePrefix = strings.TrimRight(opts.BasePrefix, "/")
-	anubis.PublicUrl = opts.PublicUrl
 
 	result := &Server{
 		next:        opts.Next,
@@ -121,6 +120,8 @@ func New(opts Options) (*Server, error) {
 		hs512Secret: opts.HS512Secret,
 		policy:      opts.Policy,
 		opts:        opts,
+		basePrefix:  opts.BasePrefix,
+		publicURL:   opts.PublicUrl,
 		OGTags: ogtags.NewOGTagCache(opts.Target, opts.Policy.OpenGraph, opts.Policy.Store, ogtags.TargetOptions{
 			Host:               opts.TargetHost,
 			SNI:                opts.TargetSNI,
@@ -131,28 +132,20 @@ func New(opts Options) (*Server, error) {
 	}
 
 	mux := http.NewServeMux()
-	xess.Mount(mux)
+	xessPrefix := result.prefixedPath(xess.BasePrefix)
+	mux.Handle(xessPrefix, internal.UnchangingCache(http.StripPrefix(xessPrefix, http.FileServerFS(xess.Static))))
 
-	// Helper to add global prefix
+	// Helper to add the server-local base prefix.
 	registerWithPrefix := func(pattern string, handler http.Handler, method string) {
 		if method != "" {
 			method = method + " " // methods must end with a space to register with them
 		}
 
-		// Ensure there's no double slash when concatenating BasePrefix and pattern
+		mux.Handle(method+result.prefixedPath(pattern), handler)
-		basePrefix := strings.TrimSuffix(anubis.BasePrefix, "/")
-		prefix := method + basePrefix
-
-		// If pattern doesn't start with a slash, add one
-		if !strings.HasPrefix(pattern, "/") {
-			pattern = "/" + pattern
-		}
-
-		mux.Handle(prefix+pattern, handler)
 	}
 
 	// Ensure there's no double slash when concatenating BasePrefix and StaticPath
-	stripPrefix := strings.TrimSuffix(anubis.BasePrefix, "/") + anubis.StaticPath
+	stripPrefix := result.prefixedPath(anubis.StaticPath)
 	registerWithPrefix(anubis.StaticPath, internal.UnchangingCache(internal.NoBrowsing(http.StripPrefix(stripPrefix, http.FileServerFS(web.Static)))), "")
 
 	if opts.ServeRobotsTXT {
@@ -166,9 +159,10 @@ func New(opts Options) (*Server, error) {
 
 	if opts.Policy.Impressum != nil {
 		registerWithPrefix(anubis.APIPrefix+"imprint", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			templ.Handler(
+			handler := templ.Handler(
-				web.Base(opts.Policy.Impressum.Page.Title, opts.Policy.Impressum.Page, opts.Policy.Impressum, localization.GetLocalizer(r)),
+				web.BaseWithOptions(result.renderOptions(), opts.Policy.Impressum.Page.Title, opts.Policy.Impressum.Page, opts.Policy.Impressum, localization.GetLocalizer(r)),
-			).ServeHTTP(w, r)
+			)
+			handler.ServeHTTP(w, r)
 		}), "GET")
 	}
 

lib/http.go

@@ -193,7 +193,7 @@ func (s *Server) RenderIndex(w http.ResponseWriter, r *http.Request, cr policy.C
 	localizer := localization.GetLocalizer(r)
 
 	if returnHTTPStatusOnly {
-		if s.opts.PublicUrl == "" {
+		if s.configuredPublicURL() == "" {
 			w.WriteHeader(http.StatusUnauthorized)
 			w.Write([]byte(localizer.T("authorization_required")))
 		} else {
@@ -263,6 +263,7 @@ func (s *Server) RenderIndex(w http.ResponseWriter, r *http.Request, cr policy.C
 	}
 
 	in := &challenge.IssueInput{
+		BasePrefix: s.configuredBasePrefix(),
 		Impressum:  s.policy.Impressum,
 		Rule:       rule,
 		Challenge:  chall,
@@ -277,7 +278,8 @@ func (s *Server) RenderIndex(w http.ResponseWriter, r *http.Request, cr policy.C
 		return
 	}
 
-	page := web.BaseWithChallengeAndOGTags(
+	page := web.BaseWithChallengeAndOGTagsWithOptions(
+		s.renderOptions(),
 		localizer.T("making_sure_not_bot"),
 		component,
 		s.policy.Impressum,
@@ -323,15 +325,17 @@ func (s *Server) constructRedirectURL(r *http.Request) (string, error) {
 
 	redir := proto + "://" + host + uri
 	escapedURL := url.QueryEscape(redir)
-	return fmt.Sprintf("%s/.within.website/?redir=%s", s.opts.PublicUrl, escapedURL), nil
+	return fmt.Sprintf("%s/.within.website/?redir=%s", s.configuredPublicURL(), escapedURL), nil
 }
 
 func (s *Server) RenderBench(w http.ResponseWriter, r *http.Request) {
 	localizer := localization.GetLocalizer(r)
+	opts := s.renderOptions()
 
-	templ.Handler(
+	handler := templ.Handler(
-		web.Base(localizer.T("benchmarking_anubis"), web.Bench(localizer), s.policy.Impressum, localizer),
+		web.BaseWithOptions(opts, localizer.T("benchmarking_anubis"), web.BenchWithOptions(opts, localizer), s.policy.Impressum, localizer),
-	).ServeHTTP(w, r)
+	)
+	handler.ServeHTTP(w, r)
 }
 
 func (s *Server) respondWithError(w http.ResponseWriter, r *http.Request, message, code string) {
@@ -340,10 +344,12 @@ func (s *Server) respondWithError(w http.ResponseWriter, r *http.Request, messag
 
 func (s *Server) respondWithStatus(w http.ResponseWriter, r *http.Request, msg, code string, status int) {
 	localizer := localization.GetLocalizer(r)
+	opts := s.renderOptions()
 
-	component := web.Base(
+	component := web.BaseWithOptions(
+		opts,
 		localizer.T("oh_noes"),
-		web.ErrorPage(msg, s.opts.WebmasterEmail, code, localizer),
+		web.ErrorPageWithOptions(opts, msg, s.opts.WebmasterEmail, code, localizer),
 		s.policy.Impressum,
 		localizer,
 	)
@@ -352,17 +358,25 @@ func (s *Server) respondWithStatus(w http.ResponseWriter, r *http.Request, msg,
 }
 
 func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	if strings.HasPrefix(r.URL.Path, anubis.BasePrefix+anubis.StaticPath) {
+	if strings.HasPrefix(r.URL.Path, s.prefixedPath(anubis.StaticPath)) {
 		s.mux.ServeHTTP(w, r)
 		return
-	} else if strings.HasPrefix(r.URL.Path, anubis.BasePrefix+xess.BasePrefix) {
+	} else if strings.HasPrefix(r.URL.Path, s.prefixedPath(xess.BasePrefix)) {
 		s.mux.ServeHTTP(w, r)
 		return
 	}
 
 	// Forward robots.txt requests to mux when ServeRobotsTXT is enabled
 	if s.opts.ServeRobotsTXT {
-		path := strings.TrimPrefix(r.URL.Path, anubis.BasePrefix)
+		path := r.URL.Path
+		basePrefix := s.configuredBasePrefix()
+		if basePrefix != "" {
+			if !strings.HasPrefix(path, basePrefix) {
+				s.maybeReverseProxyOrPage(w, r)
+				return
+			}
+			path = strings.TrimPrefix(path, basePrefix)
+		}
 		if path == "/robots.txt" || path == "/.well-known/robots.txt" {
 			s.mux.ServeHTTP(w, r)
 			return
@@ -373,11 +387,11 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 }
 
 func (s *Server) stripBasePrefixFromRequest(r *http.Request) *http.Request {
-	if !s.opts.StripBasePrefix || s.opts.BasePrefix == "" {
+	basePrefix := s.configuredBasePrefix()
+	if !s.opts.StripBasePrefix || basePrefix == "" {
 		return r
 	}
 
-	basePrefix := strings.TrimSuffix(s.opts.BasePrefix, "/")
 	path := r.URL.Path
 
 	if !strings.HasPrefix(path, basePrefix) {
@@ -441,9 +455,11 @@ func (s *Server) ServeHTTPNext(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 
-		templ.Handler(
+		opts := s.renderOptions()
-			web.Base(localizer.T("you_are_not_a_bot"), web.StaticHappy(localizer), s.policy.Impressum, localizer),
+		handler := templ.Handler(
-		).ServeHTTP(w, r)
+			web.BaseWithOptions(opts, localizer.T("you_are_not_a_bot"), web.StaticHappyWithOptions(opts, localizer), s.policy.Impressum, localizer),
+		)
+		handler.ServeHTTP(w, r)
 	} else {
 		asn, asnDesc := asnFromContext(r.Context())
 		requestsProxied.WithLabelValues(r.Host, asn, asnDesc).Inc()

web/index.go

@@ -7,17 +7,43 @@ import (
 
 	"github.com/a-h/templ"
 
+	"github.com/TecharoHQ/anubis"
 	"github.com/TecharoHQ/anubis/lib/challenge"
 	"github.com/TecharoHQ/anubis/lib/config"
 	"github.com/TecharoHQ/anubis/lib/localization"
 )
 
+// Options carries per-server render state for Anubis pages. Embedders can
+// render multiple Server instances in one process without mutating package
+// globals.
+type Options struct {
+	BasePrefix string
+	PublicURL  string
+}
+
+// DefaultOptions preserves the legacy package-global behavior for callers that
+// render web components directly.
+func DefaultOptions() Options {
+	return Options{
+		BasePrefix: anubis.BasePrefix,
+		PublicURL:  anubis.PublicUrl,
+	}
+}
+
 func Base(title string, body templ.Component, impressum *config.Impressum, localizer *localization.SimpleLocalizer) templ.Component {
-	return base(title, body, impressum, nil, nil, localizer)
+	return BaseWithOptions(DefaultOptions(), title, body, impressum, localizer)
+}
+
+func BaseWithOptions(opts Options, title string, body templ.Component, impressum *config.Impressum, localizer *localization.SimpleLocalizer) templ.Component {
+	return base(opts, title, body, impressum, nil, nil, localizer)
 }
 
 func BaseWithChallengeAndOGTags(title string, body templ.Component, impressum *config.Impressum, challenge *challenge.Challenge, rules *config.ChallengeRules, ogTags map[string]string, localizer *localization.SimpleLocalizer) templ.Component {
-	return base(title, body, impressum, struct {
+	return BaseWithChallengeAndOGTagsWithOptions(DefaultOptions(), title, body, impressum, challenge, rules, ogTags, localizer)
+}
+
+func BaseWithChallengeAndOGTagsWithOptions(opts Options, title string, body templ.Component, impressum *config.Impressum, challenge *challenge.Challenge, rules *config.ChallengeRules, ogTags map[string]string, localizer *localization.SimpleLocalizer) templ.Component {
+	return base(opts, title, body, impressum, struct {
 		Rules     *config.ChallengeRules `json:"rules"`
 		Challenge any                    `json:"challenge"`
 	}{
@@ -27,11 +53,27 @@ func BaseWithChallengeAndOGTags(title string, body templ.Component, impressum *c
 }
 
 func ErrorPage(msg, mail, code string, localizer *localization.SimpleLocalizer) templ.Component {
-	return errorPage(msg, mail, code, localizer)
+	return ErrorPageWithOptions(DefaultOptions(), msg, mail, code, localizer)
+}
+
+func ErrorPageWithOptions(opts Options, msg, mail, code string, localizer *localization.SimpleLocalizer) templ.Component {
+	return errorPage(opts, msg, mail, code, localizer)
+}
+
+func StaticHappy(localizer *localization.SimpleLocalizer) templ.Component {
+	return StaticHappyWithOptions(DefaultOptions(), localizer)
+}
+
+func StaticHappyWithOptions(opts Options, localizer *localization.SimpleLocalizer) templ.Component {
+	return staticHappy(opts, localizer)
 }
 
 func Bench(localizer *localization.SimpleLocalizer) templ.Component {
-	return bench(localizer)
+	return BenchWithOptions(DefaultOptions(), localizer)
+}
+
+func BenchWithOptions(opts Options, localizer *localization.SimpleLocalizer) templ.Component {
+	return bench(opts, localizer)
 }
 
 func honeypotLink(href string) templ.Component {

web/index.templ

@@ -9,12 +9,12 @@ import (
 	"github.com/google/uuid"
 )
 
-templ base(title string, body templ.Component, impressum *config.Impressum, challenge any, ogTags map[string]string, localizer *localization.SimpleLocalizer) {
+templ base(opts Options, title string, body templ.Component, impressum *config.Impressum, challenge any, ogTags map[string]string, localizer *localization.SimpleLocalizer) {
 	<!DOCTYPE html>
 	<html lang={ localizer.GetLang() }>
 		<head>
 			<title>{ title }</title>
-			<link rel="stylesheet" href={ anubis.BasePrefix + xess.URL }/>
+			<link rel="stylesheet" href={ opts.BasePrefix + xess.URL }/>
 			<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
 			<meta name="robots" content="noindex,nofollow"/>
 			for key, value := range ogTags {
@@ -60,11 +60,11 @@ templ base(title string, body templ.Component, impressum *config.Impressum, chal
     	</style>
 			@templ.JSONScript("anubis_version", anubis.Version)
 			@templ.JSONScript("anubis_challenge", challenge)
-			@templ.JSONScript("anubis_base_prefix", anubis.BasePrefix)
+			@templ.JSONScript("anubis_base_prefix", opts.BasePrefix)
-			@templ.JSONScript("anubis_public_url", anubis.PublicUrl)
+			@templ.JSONScript("anubis_public_url", opts.PublicURL)
 		</head>
 		<body id="top">
-			@honeypotLink(anubis.BasePrefix + fmt.Sprintf("%shoneypot/%s/init", anubis.APIPrefix, uuid.NewString()))
+			@honeypotLink(opts.BasePrefix + fmt.Sprintf("%shoneypot/%s/init", anubis.APIPrefix, uuid.NewString()))
 			<main>
 				<h1 id="title" class="centered-div">{ title }</h1>
 				@body
@@ -79,7 +79,7 @@ templ base(title string, body templ.Component, impressum *config.Impressum, chal
 						if impressum != nil {
 							<p>
 								@templ.Raw(impressum.Footer)
-								-- <a href={ templ.SafeURL(anubis.BasePrefix + fmt.Sprintf("%simprint", anubis.APIPrefix)) }>Imprint</a>
+								-- <a href={ templ.SafeURL(opts.BasePrefix + fmt.Sprintf("%simprint", anubis.APIPrefix)) }>Imprint</a>
 							</p>
 						}
 						<p>{ localizer.T("version_info") } <code>{ anubis.Version }</code>.</p>
@@ -90,9 +90,9 @@ templ base(title string, body templ.Component, impressum *config.Impressum, chal
 	</html>
 }
 
-templ errorPage(message, mail, code string, localizer *localization.SimpleLocalizer) {
+templ errorPage(opts Options, message, mail, code string, localizer *localization.SimpleLocalizer) {
 	<div class="centered-div">
-		<img id="image" alt="Sad Anubis" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/reject.webp?cacheBuster=" + anubis.Version }/>
+		<img id="image" alt="Sad Anubis" style="width:100%;max-width:256px;" src={ opts.BasePrefix + "/.within.website/x/cmd/anubis/static/img/reject.webp?cacheBuster=" + anubis.Version }/>
 		<p>{ message }.</p>
 		if code != "" {
 			<code><pre>{ code }</pre></code>
@@ -110,19 +110,19 @@ templ errorPage(message, mail, code string, localizer *localization.SimpleLocali
 	</div>
 }
 
-templ StaticHappy(localizer *localization.SimpleLocalizer) {
+templ staticHappy(opts Options, localizer *localization.SimpleLocalizer) {
 	<div class="centered-div">
 		<img
 			style="display:none;"
 			style="width:100%;max-width:256px;"
-			src={ "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" +
+			src={ opts.BasePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" +
     anubis.Version }
 		/>
 		<p>{ localizer.T("static_check_endpoint") }</p>
 	</div>
 }
 
-templ bench(localizer *localization.SimpleLocalizer) {
+templ bench(opts Options, localizer *localization.SimpleLocalizer) {
 	<div style="height:20rem;display:flex">
 		<table style="margin-top:1rem;display:grid;grid-template:auto 1fr/auto auto;gap:0 0.5rem">
 			<thead
@@ -145,9 +145,9 @@ templ bench(localizer *localization.SimpleLocalizer) {
 			></tbody>
 		</table>
 		<div class="centered-div">
-			<img id="image" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version }/>
+			<img id="image" style="width:100%;max-width:256px;" src={ opts.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version }/>
 			<p id="status" style="max-width:256px">{ localizer.T("loading") }</p>
-			<script async type="module" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/js/bench.mjs?cacheBuster=" + anubis.Version }></script>
+			<script async type="module" src={ opts.BasePrefix + "/.within.website/x/cmd/anubis/static/js/bench.mjs?cacheBuster=" + anubis.Version }></script>
 			<div id="sparkline"></div>
 			<noscript>
 				<p>{ localizer.T("benchmark_requires_js") }</p>

web/index_templ.go

@@ -17,7 +17,7 @@ import (
 	"github.com/google/uuid"
 )
 
-func base(title string, body templ.Component, impressum *config.Impressum, challenge any, ogTags map[string]string, localizer *localization.SimpleLocalizer) templ.Component {
+func base(opts Options, title string, body templ.Component, impressum *config.Impressum, challenge any, ogTags map[string]string, localizer *localization.SimpleLocalizer) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
@@ -69,9 +69,9 @@ func base(title string, body templ.Component, impressum *config.Impressum, chall
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var4 templ.SafeURL
-		templ_7745c5c3_Var4, templ_7745c5c3_Err = templ.JoinURLErrs(anubis.BasePrefix + xess.URL)
+		templ_7745c5c3_Var4, templ_7745c5c3_Err = templ.JoinURLErrs(opts.BasePrefix + xess.URL)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 17, Col: 61}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 17, Col: 59}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var4))
 		if templ_7745c5c3_Err != nil {
@@ -125,11 +125,11 @@ func base(title string, body templ.Component, impressum *config.Impressum, chall
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templ.JSONScript("anubis_base_prefix", anubis.BasePrefix).Render(ctx, templ_7745c5c3_Buffer)
+		templ_7745c5c3_Err = templ.JSONScript("anubis_base_prefix", opts.BasePrefix).Render(ctx, templ_7745c5c3_Buffer)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templ.JSONScript("anubis_public_url", anubis.PublicUrl).Render(ctx, templ_7745c5c3_Buffer)
+		templ_7745c5c3_Err = templ.JSONScript("anubis_public_url", opts.PublicURL).Render(ctx, templ_7745c5c3_Buffer)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -137,7 +137,7 @@ func base(title string, body templ.Component, impressum *config.Impressum, chall
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = honeypotLink(anubis.BasePrefix+fmt.Sprintf("%shoneypot/%s/init", anubis.APIPrefix, uuid.NewString())).Render(ctx, templ_7745c5c3_Buffer)
+		templ_7745c5c3_Err = honeypotLink(opts.BasePrefix+fmt.Sprintf("%shoneypot/%s/init", anubis.APIPrefix, uuid.NewString())).Render(ctx, templ_7745c5c3_Buffer)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -245,9 +245,9 @@ func base(title string, body templ.Component, impressum *config.Impressum, chall
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var13 templ.SafeURL
-			templ_7745c5c3_Var13, templ_7745c5c3_Err = templ.JoinURLErrs(templ.SafeURL(anubis.BasePrefix + fmt.Sprintf("%simprint", anubis.APIPrefix)))
+			templ_7745c5c3_Var13, templ_7745c5c3_Err = templ.JoinURLErrs(templ.SafeURL(opts.BasePrefix + fmt.Sprintf("%simprint", anubis.APIPrefix)))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 82, Col: 98}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 82, Col: 96}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var13))
 			if templ_7745c5c3_Err != nil {
@@ -292,7 +292,7 @@ func base(title string, body templ.Component, impressum *config.Impressum, chall
 	})
 }
 
-func errorPage(message, mail, code string, localizer *localization.SimpleLocalizer) templ.Component {
+func errorPage(opts Options, message, mail, code string, localizer *localization.SimpleLocalizer) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
@@ -318,9 +318,9 @@ func errorPage(message, mail, code string, localizer *localization.SimpleLocaliz
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var17 string
-		templ_7745c5c3_Var17, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/reject.webp?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var17, templ_7745c5c3_Err = templ.JoinStringErrs(opts.BasePrefix + "/.within.website/x/cmd/anubis/static/img/reject.webp?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 95, Col: 181}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 95, Col: 179}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var17))
 		if templ_7745c5c3_Err != nil {
@@ -446,7 +446,7 @@ func errorPage(message, mail, code string, localizer *localization.SimpleLocaliz
 	})
 }
 
-func StaticHappy(localizer *localization.SimpleLocalizer) templ.Component {
+func staticHappy(opts Options, localizer *localization.SimpleLocalizer) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
@@ -472,7 +472,7 @@ func StaticHappy(localizer *localization.SimpleLocalizer) templ.Component {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var26 string
-		templ_7745c5c3_Var26, templ_7745c5c3_Err = templ.JoinStringErrs("/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" +
+		templ_7745c5c3_Var26, templ_7745c5c3_Err = templ.JoinStringErrs(opts.BasePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" +
 			anubis.Version)
 		if templ_7745c5c3_Err != nil {
 			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 119, Col: 18}
@@ -502,7 +502,7 @@ func StaticHappy(localizer *localization.SimpleLocalizer) templ.Component {
 	})
 }
 
-func bench(localizer *localization.SimpleLocalizer) templ.Component {
+func bench(opts Options, localizer *localization.SimpleLocalizer) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
@@ -606,9 +606,9 @@ func bench(localizer *localization.SimpleLocalizer) templ.Component {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var35 string
-		templ_7745c5c3_Var35, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var35, templ_7745c5c3_Err = templ.JoinStringErrs(opts.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 148, Col: 166}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 148, Col: 164}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var35))
 		if templ_7745c5c3_Err != nil {
@@ -632,9 +632,9 @@ func bench(localizer *localization.SimpleLocalizer) templ.Component {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var37 string
-		templ_7745c5c3_Var37, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/js/bench.mjs?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var37, templ_7745c5c3_Err = templ.JoinStringErrs(opts.BasePrefix + "/.within.website/x/cmd/anubis/static/js/bench.mjs?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 150, Col: 138}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 150, Col: 136}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var37))
 		if templ_7745c5c3_Err != nil {

web/index_test.go

@@ -59,7 +59,7 @@ func TestBasePrefixInLinks(t *testing.T) {
 
 			// Render the base template to a buffer
 			var buf strings.Builder
-			component := base(tt.name, templ.NopComponent, impressum, nil, nil, localizer)
+			component := base(Options{BasePrefix: tt.basePrefix}, tt.name, templ.NopComponent, impressum, nil, nil, localizer)
 			err := component.Render(context.Background(), &buf)
 			if err != nil {
 				t.Fatalf("failed to render template: %v", err)