WIP minimal AP

go.mod

@@ -15,8 +15,12 @@ require (
 )
 
 require (
+	git.sr.ht/~mariusor/go-xsd-duration v0.0.0-20220703122237-02e73435a078 // indirect
 	github.com/andybalholm/brotli v1.0.5 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/go-ap/activitypub v0.0.0-20230719093539-2b6a6f3a25ee // indirect
+	github.com/go-ap/errors v0.0.0-20221205040414-01c1adfc98ea // indirect
+	github.com/go-ap/jsonld v0.0.0-20221030091449-f2a191312c73 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/klauspost/compress v1.16.3 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
@@ -31,6 +35,7 @@ require (
 	github.com/tinylib/msgp v1.1.8 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasthttp v1.47.0 // indirect
+	github.com/valyala/fastjson v1.6.4 // indirect
 	github.com/valyala/tcplisten v1.0.0 // indirect
 	golang.org/x/sys v0.10.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

go.sum

@@ -1,8 +1,16 @@
+git.sr.ht/~mariusor/go-xsd-duration v0.0.0-20220703122237-02e73435a078 h1:cliQ4HHsCo6xi2oWZYKWW4bly/Ory9FuTpFPRxj/mAg=
+git.sr.ht/~mariusor/go-xsd-duration v0.0.0-20220703122237-02e73435a078/go.mod h1:g/V2Hjas6Z1UHUp4yIx6bATpNzJ7DYtD0FG3+xARWxs=
 github.com/andybalholm/brotli v1.0.5 h1:8uQZIdzKmjc/iuPu7O2ioW48L81FgatrcpfFmiq/cCs=
 github.com/andybalholm/brotli v1.0.5/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-ap/activitypub v0.0.0-20230719093539-2b6a6f3a25ee h1:1OMBlmSzLXftIj5z/D1s1Xr3FanVKtLFZPtdIFslh1A=
+github.com/go-ap/activitypub v0.0.0-20230719093539-2b6a6f3a25ee/go.mod h1:qw0WNf+PTG69Xu6mVqUluDuKl1VwVYdgntOZQFBZQ48=
+github.com/go-ap/errors v0.0.0-20221205040414-01c1adfc98ea h1:ywGtLGVjJjMrq4mu35Qmu+NtlhlTk/gTayE6Bb4tQZk=
+github.com/go-ap/errors v0.0.0-20221205040414-01c1adfc98ea/go.mod h1:SaTNjEEkp0q+w3pUS1ccyEL/lUrHteORlDq/e21mCc8=
+github.com/go-ap/jsonld v0.0.0-20221030091449-f2a191312c73 h1:GMKIYXyXPGIp+hYiWOhfqK4A023HdgisDT4YGgf99mw=
+github.com/go-ap/jsonld v0.0.0-20221030091449-f2a191312c73/go.mod h1:jyveZeGw5LaADntW+UEsMjl3IlIwk+DxlYNsbofQkGA=
 github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
 github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
 github.com/gofiber/fiber/v2 v2.47.0 h1:EN5lHVCc+Pyqh5OEsk8fzRiifgwpbrP0rulQ4iNf3fs=
@@ -53,6 +61,9 @@ github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6Kllzaw
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasthttp v1.47.0 h1:y7moDoxYzMooFpT5aHgNgVOQDrS3qlkfiP9mDtGGK9c=
 github.com/valyala/fasthttp v1.47.0/go.mod h1:k2zXd82h/7UZc3VOdJ2WaUqt1uZ/XpXAfE9i+HBC3lA=
+github.com/valyala/fastjson v1.6.3/go.mod h1:CLCAqky6SMuOcxStkYQvblddUtoRxhYMGLrsQns1aXY=
+github.com/valyala/fastjson v1.6.4 h1:uAUNq9Z6ymTgGhcm0UynUAB6tlbakBrz6CQFax3BXVQ=
+github.com/valyala/fastjson v1.6.4/go.mod h1:CLCAqky6SMuOcxStkYQvblddUtoRxhYMGLrsQns1aXY=
 github.com/valyala/tcplisten v1.0.0 h1:rBHj/Xf+E1tRGZyWIWwJDiRY0zc1Js+CV5DqwacVSA8=
 github.com/valyala/tcplisten v1.0.0/go.mod h1:T0xQ8SeCZGxckz9qRXTfG43PvQ/mcWh7FwZEA7Ioqkc=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=

web/activity_pub_handler.go

@@ -1,10 +1,14 @@
 package web
 
 import (
+	"net/url"
+	"owl-blogs/app"
 	"owl-blogs/app/repository"
 	"owl-blogs/config"
 	"owl-blogs/domain/model"
 
+	vocab "github.com/go-ap/activitypub"
+
 	"github.com/gofiber/fiber/v2"
 )
 
@@ -12,6 +16,7 @@ const ACT_PUB_CONF_NAME = "activity_pub"
 
 type ActivityPubServer struct {
 	configRepo   repository.ConfigRepository
+	entryService *app.EntryService
 }
 
 type ActivityPubConfig struct {
@@ -22,47 +27,19 @@ type ActivityPubConfig struct {
 
 type WebfingerResponse struct {
 	Subject string          `json:"subject"`
-	Links   []ActivityPubLink `json:"links"`
+	Links   []WebfingerLink `json:"links"`
 }
 
-type ActivityPubLink struct {
+type WebfingerLink struct {
 	Rel  string `json:"rel"`
 	Type string `json:"type"`
 	Href string `json:"href"`
 }
 
-type ActivityPubActor struct {
+func NewActivityPubServer(configRepo repository.ConfigRepository, entryService *app.EntryService) *ActivityPubServer {
-	Context []string `json:"@context"`
-
-	ID                string `json:"id"`
-	Type              string `json:"type"`
-	PreferredUsername string `json:"preferredUsername"`
-	Inbox             string `json:"inbox"`
-	Oubox             string `json:"outbox"`
-	Followers         string `json:"followers"`
-
-	PublicKey ActivityPubPublicKey `json:"publicKey"`
-}
-
-type ActivityPubPublicKey struct {
-	ID           string `json:"id"`
-	Owner        string `json:"owner"`
-	PublicKeyPem string `json:"publicKeyPem"`
-}
-
-type ActivityPubOrderedCollection struct {
-	Context []string `json:"@context"`
-
-	ID         string `json:"id"`
-	Type       string `json:"type"`
-	TotalItems int    `json:"totalItems"`
-	First      string `json:"first"`
-	Last       string `json:"last"`
-}
-
-func NewActivityPubServer(configRepo repository.ConfigRepository) *ActivityPubServer {
 	return &ActivityPubServer{
 		configRepo:   configRepo,
+		entryService: entryService,
 	}
 }
 
@@ -75,7 +52,7 @@ func (s *ActivityPubServer) HandleWebfinger(ctx *fiber.Ctx) error {
 	webfinger := WebfingerResponse{
 		Subject: ctx.Query("resource"),
 
-		Links: []ActivityPubLink{
+		Links: []WebfingerLink{
 			{
 				Rel:  "self",
 				Type: "application/activity+json",
@@ -90,6 +67,7 @@ func (s *ActivityPubServer) HandleWebfinger(ctx *fiber.Ctx) error {
 
 func (s *ActivityPubServer) Router(router fiber.Router) {
 	router.Get("/actor", s.HandleActor)
+	router.Get("/outbox", s.HandleOutbox)
 }
 
 func (s *ActivityPubServer) HandleActor(ctx *fiber.Ctx) error {
@@ -98,25 +76,57 @@ func (s *ActivityPubServer) HandleActor(ctx *fiber.Ctx) error {
 	s.configRepo.Get(ACT_PUB_CONF_NAME, &apConfig)
 	s.configRepo.Get(config.SITE_CONFIG, &siteConfig)
 
-	actor := ActivityPubActor{
+	actor := vocab.PersonNew(vocab.IRI(siteConfig.FullUrl + "/activitypub/actor"))
-		Context: []string{
+	actor.PreferredUsername = vocab.NaturalLanguageValues{{Value: vocab.Content(apConfig.PreferredUsername)}}
-			"https://www.w3.org/ns/activitystreams",
+	actor.Inbox = vocab.IRI(siteConfig.FullUrl + "/activitypub/inbox")
-			"https://w3id.org/security/v1",
+	actor.Outbox = vocab.IRI(siteConfig.FullUrl + "/activitypub/outbox")
-		},
+	actor.Followers = vocab.IRI(siteConfig.FullUrl + "/activitypub/followers")
-
+	actor.PublicKey = vocab.PublicKey{
-		ID:                siteConfig.FullUrl + "/activitypub/actor",
+		ID:           vocab.ID(siteConfig.FullUrl + "/activitypub/actor#main-key"),
-		Type:              "Person",
+		Owner:        vocab.IRI(siteConfig.FullUrl + "/activitypub/actor"),
-		PreferredUsername: apConfig.PreferredUsername,
-		Inbox:             siteConfig.FullUrl + "/activitypub/inbox",
-		Oubox:             siteConfig.FullUrl + "/activitypub/outbox",
-		Followers:         siteConfig.FullUrl + "/activitypub/followers",
-
-		PublicKey: ActivityPubPublicKey{
-			ID:           siteConfig.FullUrl + "/activitypub/actor#main-key",
-			Owner:        siteConfig.FullUrl + "/activitypub/actor",
 		PublicKeyPem: apConfig.PublicKeyPem,
-		},
 	}
 
-	return ctx.JSON(actor)
+	data, err := actor.MarshalJSON()
+	if err != nil {
+		return err
+	}
+	ctx.Set("Content-Type", "application/activity+json")
+	return ctx.Send(data)
+}
+
+func (s *ActivityPubServer) HandleOutbox(ctx *fiber.Ctx) error {
+	siteConfig := model.SiteConfig{}
+	apConfig := ActivityPubConfig{}
+	s.configRepo.Get(ACT_PUB_CONF_NAME, &apConfig)
+	s.configRepo.Get(config.SITE_CONFIG, &siteConfig)
+
+	entries, err := s.entryService.FindAllByType(nil, true, false)
+	if err != nil {
+		return err
+	}
+
+	items := make([]vocab.Item, len(entries))
+	for i, entry := range entries {
+		url, _ := url.JoinPath(siteConfig.FullUrl, "/posts/"+entry.ID()+"/")
+		items[i] = *vocab.ActivityNew(vocab.IRI(url), vocab.CreateType, vocab.Object{
+			ID:   vocab.ID(url),
+			Type: vocab.ArticleType,
+			Content: vocab.NaturalLanguageValues{
+				{Value: vocab.Content(entry.Content())},
+			},
+		})
+	}
+
+	outbox := vocab.OrderedCollectionNew(vocab.IRI(siteConfig.FullUrl + "/activitypub/outbox"))
+	outbox.TotalItems = uint(len(items))
+	outbox.OrderedItems = items
+
+	data, err := outbox.MarshalJSON()
+	if err != nil {
+		return err
+	}
+	ctx.Set("Content-Type", "application/activity+json")
+	return ctx.Send(data)
+
 }

web/app.go

@@ -118,10 +118,10 @@ func NewWebApp(
 	app.Get("/sitemap.xml", NewSiteMapHandler(entryService, configRepo).Handle)
 
 	// ActivityPub
-	// activityPubServer := NewActivityPubServer(configRepo)
+	activityPubServer := NewActivityPubServer(configRepo, entryService)
 	configRegister.Register(ACT_PUB_CONF_NAME, &ActivityPubConfig{})
-	// app.Get("/.well-known/webfinger", activityPubServer.HandleWebfinger)
+	app.Get("/.well-known/webfinger", activityPubServer.HandleWebfinger)
-	// app.Route("/activitypub", activityPubServer.Router)
+	app.Route("/activitypub", activityPubServer.Router)
 
 	// Webmention
 	// app.Post("/webmention/", userWebmentionHandler(repo))