app/activity_pub_service.go

@@ -55,12 +55,18 @@ func (cfg *ActivityPubConfig) PrivateKey() *rsa.PrivateKey {
 type ActivityPubService struct {
 	followersRepo     repository.FollowerRepository
 	configRepo        repository.ConfigRepository
+	siteConfigServcie *SiteConfigService
 }
 
-func NewActivityPubService(followersRepo repository.FollowerRepository, configRepo repository.ConfigRepository) *ActivityPubService {
+func NewActivityPubService(
+	followersRepo repository.FollowerRepository,
+	configRepo repository.ConfigRepository,
+	siteConfigServcie *SiteConfigService,
+) *ActivityPubService {
 	return &ActivityPubService{
 		followersRepo:     followersRepo,
 		configRepo:        configRepo,
+		siteConfigServcie: siteConfigServcie,
 	}
 }
 
@@ -104,6 +110,27 @@ func (svc *ActivityPubService) GetApConfig() (ActivityPubConfig, error) {
 	return apConfig, nil
 }
 
+func (svc *ActivityPubService) ActorUrl() string {
+	cfg, _ := svc.siteConfigServcie.GetSiteConfig()
+	return cfg.FullUrl
+}
+func (svc *ActivityPubService) MainKeyUri() string {
+	cfg, _ := svc.siteConfigServcie.GetSiteConfig()
+	return cfg.FullUrl + "#main-key"
+}
+func (svc *ActivityPubService) InboxUrl() string {
+	cfg, _ := svc.siteConfigServcie.GetSiteConfig()
+	return cfg.FullUrl + "/activitypub/inbox"
+}
+func (svc *ActivityPubService) OutboxUrl() string {
+	cfg, _ := svc.siteConfigServcie.GetSiteConfig()
+	return cfg.FullUrl + "/activitypub/outbox"
+}
+func (svc *ActivityPubService) FollowersUrl() string {
+	cfg, _ := svc.siteConfigServcie.GetSiteConfig()
+	return cfg.FullUrl + "/activitypub/followers"
+}
+
 func (s *ActivityPubService) AddFollower(follower string) error {
 	return s.followersRepo.Add(follower)
 }
@@ -157,7 +184,7 @@ func (s *ActivityPubService) GetActor(reqUrl string) (vocab.Actor, error) {
 	req.Header.Set("Date", time.Now().Format(http.TimeFormat))
 	req.Header.Set("Host", parsedUrl.Host)
 
-	err = s.sign(apConfig.PrivateKey(), siteConfig.FullUrl+"/activitypub/actor#main-key", nil, req)
+	err = s.sign(apConfig.PrivateKey(), s.MainKeyUri(), nil, req)
 	if err != nil {
 		slog.Error("Signing error", "err", err)
 		return vocab.Actor{}, err
@@ -195,7 +222,7 @@ func (s *ActivityPubService) VerifySignature(r *http.Request, sender string) err
 	s.configRepo.Get(config.ACT_PUB_CONF_NAME, &apConfig)
 	s.configRepo.Get(config.SITE_CONFIG, &siteConfig)
 
-	slog.Info("verifying for", "sender", sender, "retriever", siteConfig.FullUrl+"/activitypub/actor")
+	slog.Info("verifying for", "sender", sender, "retriever", s.ActorUrl())
 
 	actor, err := s.GetActor(sender)
 	// actor does not have a pub key -> don't verify
@@ -264,7 +291,7 @@ func (s *ActivityPubService) sendObject(to vocab.Actor, data []byte) error {
 	req.Header.Set("Accept", "application/ld+json")
 	req.Header.Set("Date", time.Now().Format(http.TimeFormat))
 	req.Header.Set("Host", actorUrl.Host)
-	err = s.sign(apConfig.PrivateKey(), siteConfig.FullUrl+"/activitypub/actor#main-key", data, req)
+	err = s.sign(apConfig.PrivateKey(), s.MainKeyUri(), data, req)
 	if err != nil {
 		slog.Error("Signing error", "err", err)
 		return err

cmd/owl/main.go

@@ -66,7 +66,7 @@ func App(db infra.Database) *web.WebApp {
 	webmentionService := app.NewWebmentionService(
 		siteConfigService, interactionRepo, entryRepo, httpClient, eventBus,
 	)
-	apService := app.NewActivityPubService(followersRepo, configRepo)
+	apService := app.NewActivityPubService(followersRepo, configRepo, siteConfigService)
 
 	// setup render functions
 	render.SiteConfigService = siteConfigService

web/activity_pub_handler.go

@@ -6,6 +6,7 @@ import (
 	"net/http"
 	"net/url"
 	"owl-blogs/app"
+	"strings"
 
 	vocab "github.com/go-ap/activitypub"
 	"github.com/go-ap/jsonld"
@@ -63,7 +64,7 @@ func (s *ActivityPubServer) HandleWebfinger(ctx *fiber.Ctx) error {
 			{
 				Rel:  "self",
 				Type: "application/activity+json",
-				Href: siteConfig.FullUrl + "/activitypub/actor",
+				Href: s.apService.ActorUrl(),
 			},
 		},
 	}
@@ -73,24 +74,28 @@ func (s *ActivityPubServer) HandleWebfinger(ctx *fiber.Ctx) error {
 }
 
 func (s *ActivityPubServer) Router(router fiber.Router) {
-	router.Get("/actor", s.HandleActor)
+	// router.Get("/actor", s.HandleActor)
 	router.Get("/outbox", s.HandleOutbox)
 	router.Post("/inbox", s.HandleInbox)
 	router.Get("/followers", s.HandleFollowers)
 }
 
 func (s *ActivityPubServer) HandleActor(ctx *fiber.Ctx) error {
-	siteConfig, _ := s.siteConfigService.GetSiteConfig()
+	accepts := strings.Contains(string(ctx.Request().Header.Peek("Accept")), "application/activity+json")
+	req_content := strings.Contains(string(ctx.Request().Header.Peek("Content-Type")), "application/activity+json")
+	if !accepts && !req_content {
+		return ctx.Next()
+	}
 	apConfig, _ := s.apService.GetApConfig()
 
-	actor := vocab.PersonNew(vocab.IRI(siteConfig.FullUrl + "/activitypub/actor"))
+	actor := vocab.PersonNew(vocab.IRI(s.apService.ActorUrl()))
 	actor.PreferredUsername = vocab.NaturalLanguageValues{{Value: vocab.Content(apConfig.PreferredUsername)}}
-	actor.Inbox = vocab.IRI(siteConfig.FullUrl + "/activitypub/inbox")
+	actor.Inbox = vocab.IRI(s.apService.InboxUrl())
-	actor.Outbox = vocab.IRI(siteConfig.FullUrl + "/activitypub/outbox")
+	actor.Outbox = vocab.IRI(s.apService.OutboxUrl())
-	actor.Followers = vocab.IRI(siteConfig.FullUrl + "/activitypub/followers")
+	actor.Followers = vocab.IRI(s.apService.FollowersUrl())
 	actor.PublicKey = vocab.PublicKey{
-		ID:           vocab.ID(siteConfig.FullUrl + "/activitypub/actor#main-key"),
+		ID:           vocab.IRI(s.apService.MainKeyUri()),
-		Owner:        vocab.IRI(siteConfig.FullUrl + "/activitypub/actor"),
+		Owner:        vocab.IRI(s.apService.ActorUrl()),
 		PublicKeyPem: apConfig.PublicKeyPem,
 	}
 	data, err := jsonld.WithContext(
@@ -125,7 +130,7 @@ func (s *ActivityPubServer) HandleOutbox(ctx *fiber.Ctx) error {
 		})
 	}
 
-	outbox := vocab.OrderedCollectionNew(vocab.IRI(siteConfig.FullUrl + "/activitypub/outbox"))
+	outbox := vocab.OrderedCollectionNew(vocab.IRI(s.apService.OutboxUrl()))
 	outbox.TotalItems = uint(len(items))
 	outbox.OrderedItems = items
 
@@ -205,9 +210,6 @@ func (s *ActivityPubServer) HandleInbox(ctx *fiber.Ctx) error {
 }
 
 func (s *ActivityPubServer) HandleFollowers(ctx *fiber.Ctx) error {
-	siteConfig, _ := s.siteConfigService.GetSiteConfig()
-	// apConfig, _ := s.apService.GetApConfig()
-
 	fs, err := s.apService.AllFollowers()
 	if err != nil {
 		return err
@@ -218,7 +220,7 @@ func (s *ActivityPubServer) HandleFollowers(ctx *fiber.Ctx) error {
 		followers.Append(vocab.IRI(f))
 	}
 	followers.TotalItems = uint(len(fs))
-	followers.ID = vocab.IRI(siteConfig.FullUrl + "/activitypub/followers")
+	followers.ID = vocab.IRI(s.apService.FollowersUrl())
 	data, err := jsonld.WithContext(
 		jsonld.IRI(vocab.ActivityBaseURI),
 	).Marshal(followers)

web/app.go

@@ -109,12 +109,15 @@ func NewWebApp(
 	siteConfig.Post("/menus/create/", siteConfigMenusHandler.HandleCreate)
 	siteConfig.Post("/menus/delete/", siteConfigMenusHandler.HandleDelete)
 
+	activityPubServer := NewActivityPubServer(siteConfigService, entryService, apService)
+	configRegister.Register(config.ACT_PUB_CONF_NAME, &app.ActivityPubConfig{})
+
 	fiberApp.Use("/static", filesystem.New(filesystem.Config{
 		Root:       http.FS(embedDirStatic),
 		PathPrefix: "static",
 		Browse:     false,
 	}))
-	fiberApp.Get("/", indexHandler.Handle)
+	fiberApp.Get("/", activityPubServer.HandleActor, indexHandler.Handle)
 	fiberApp.Get("/lists/:list/", listHandler.Handle)
 	// Media
 	fiberApp.Get("/media/+", mediaHandler.Handle)
@@ -135,8 +138,6 @@ func NewWebApp(
 	fiberApp.Get("/sitemap.xml", NewSiteMapHandler(entryService, siteConfigService).Handle)
 
 	// ActivityPub
-	activityPubServer := NewActivityPubServer(siteConfigService, entryService, apService)
-	configRegister.Register(config.ACT_PUB_CONF_NAME, &app.ActivityPubConfig{})
 	fiberApp.Get("/.well-known/webfinger", activityPubServer.HandleWebfinger)
 	fiberApp.Route("/activitypub", activityPubServer.Router)