1 files changed, 106 insertions, 0 deletions
diff --git a/routers/api/v1/activitypub/person.go b/routers/api/v1/activitypub/person.go
new file mode 100644
index 0000000..995a148
--- /dev/null
+++ b/routers/api/v1/activitypub/person.go
@@ -0,0 +1,106 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activitypub
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"code.gitea.io/gitea/modules/activitypub"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/services/context"
+
+	ap "github.com/go-ap/activitypub"
+	"github.com/go-ap/jsonld"
+)
+
+// Person function returns the Person actor for a user
+func Person(ctx *context.APIContext) {
+	// swagger:operation GET /activitypub/user-id/{user-id} activitypub activitypubPerson
+	// ---
+	// summary: Returns the Person actor for a user
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: user-id
+	//   in: path
+	//   description: user ID of the user
+	//   type: integer
+	//   required: true
+	// responses:
+	//   "200":
+	//     "$ref": "#/responses/ActivityPub"
+
+	// TODO: the setting.AppURL during the test doesn't follow the definition: "It always has a '/' suffix"
+	link := fmt.Sprintf("%s/api/v1/activitypub/user-id/%d", strings.TrimSuffix(setting.AppURL, "/"), ctx.ContextUser.ID)
+	person := ap.PersonNew(ap.IRI(link))
+
+	person.Name = ap.NaturalLanguageValuesNew()
+	err := person.Name.Set("en", ap.Content(ctx.ContextUser.FullName))
+	if err != nil {
+		ctx.ServerError("Set Name", err)
+		return
+	}
+
+	person.PreferredUsername = ap.NaturalLanguageValuesNew()
+	err = person.PreferredUsername.Set("en", ap.Content(ctx.ContextUser.Name))
+	if err != nil {
+		ctx.ServerError("Set PreferredUsername", err)
+		return
+	}
+
+	person.URL = ap.IRI(ctx.ContextUser.HTMLURL())
+
+	person.Icon = ap.Image{
+		Type:      ap.ImageType,
+		MediaType: "image/png",
+		URL:       ap.IRI(ctx.ContextUser.AvatarLink(ctx)),
+	}
+
+	person.Inbox = ap.IRI(link + "/inbox")
+	person.Outbox = ap.IRI(link + "/outbox")
+
+	person.PublicKey.ID = ap.IRI(link + "#main-key")
+	person.PublicKey.Owner = ap.IRI(link)
+
+	publicKeyPem, err := activitypub.GetPublicKey(ctx, ctx.ContextUser)
+	if err != nil {
+		ctx.ServerError("GetPublicKey", err)
+		return
+	}
+	person.PublicKey.PublicKeyPem = publicKeyPem
+
+	binary, err := jsonld.WithContext(jsonld.IRI(ap.ActivityBaseURI), jsonld.IRI(ap.SecurityContextURI)).Marshal(person)
+	if err != nil {
+		ctx.ServerError("MarshalJSON", err)
+		return
+	}
+	ctx.Resp.Header().Add("Content-Type", activitypub.ActivityStreamsContentType)
+	ctx.Resp.WriteHeader(http.StatusOK)
+	if _, err = ctx.Resp.Write(binary); err != nil {
+		log.Error("write to resp err: %v", err)
+	}
+}
+
+// PersonInbox function handles the incoming data for a user inbox
+func PersonInbox(ctx *context.APIContext) {
+	// swagger:operation POST /activitypub/user-id/{user-id}/inbox activitypub activitypubPersonInbox
+	// ---
+	// summary: Send to the inbox
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: user-id
+	//   in: path
+	//   description: user ID of the user
+	//   type: integer
+	//   required: true
+	// responses:
+	//   "204":
+	//     "$ref": "#/responses/empty"
+
+	ctx.Status(http.StatusNoContent)
+}