feature: add 'attachment' field to actor

actor.go

@@ -27,6 +27,14 @@ import (
 
 // Actor represents a local actor we can act on
 // behalf of.
+
+//type Attachment struct {
+//  Type string
+//  Name string
+//  Href string
+//  Rel string
+//}
+
 type Actor struct {
 	Name, summary, actorType, iri  string
 	followersIRI                   string
@@ -41,15 +49,18 @@ type Actor struct {
 	publicKeyID                    string
 	OnFollow                       func(map[string]interface{})
 	OnReceiveContent               func(map[string]interface{})
+	attachment []interface {}
 }
 
 // ActorToSave is a stripped down actor representation
 // with exported properties in order for json to be
 // able to marshal it.
 // see https://stackoverflow.com/questions/26327391/json-marshalstruct-returns
+
 type ActorToSave struct {
 	Name, Summary, ActorType, IRI, PublicKey, PrivateKey string
 	Followers, Following, Rejected, Requested map[string]interface{}
+	Attachment []interface {}
 }
 
 // MakeActor creates and returns a new local actor we can act
@@ -59,6 +70,7 @@ func MakeActor(name, summary, actorType string) (Actor, error) {
 	following := make(map[string]interface{})
 	rejected := make(map[string]interface{})
 	requested := make(map[string]interface{})
+  var attachment []interface{}
 	followersIRI := baseURL + name + "/followers"
 	publicKeyID := baseURL + name + "#main-key"
 	iri := baseURL + name
@@ -79,6 +91,7 @@ func MakeActor(name, summary, actorType string) (Actor, error) {
 		requested:    requested,
 		followersIRI: followersIRI,
 		publicKeyID:  publicKeyID,
+		attachment: attachment,
 	}
 
 	// set auto accept by default (this could be a configuration value)
@@ -199,6 +212,7 @@ func LoadActor(name string) (Actor, error) {
 		privateKeyPem: jsonData["PrivateKey"].(string),
 		followersIRI:  baseURL + name + "/followers",
 		publicKeyID:   baseURL + name + "#main-key",
+		attachment: jsonData["Attachment"].([]interface{}),
 	}
 
 	actor.OnFollow = func(activity map[string]interface{}) { actor.Accept(activity) }
@@ -265,6 +279,7 @@ func (a *Actor) save() error {
 		Requested:  a.requested,
 		PublicKey:  a.publicKeyPem,
 		PrivateKey: a.privateKeyPem,
+		Attachment: a.attachment,
 	}
 
 	actorJSON, err := json.MarshalIndent(actorToSave, "", "\t")
@@ -296,6 +311,7 @@ func (a *Actor) whoAmI() string {
 	self["outbox"] = baseURL + a.Name + "/outbox"
 	self["followers"] = baseURL + a.Name + "/peers/followers"
 	self["following"] = baseURL + a.Name + "/peers/following"
+	self["attachment"] = a.attachment
 	self["publicKey"] = map[string]string{
 		"id":           baseURL + a.Name + "#main-key",
 		"owner":        baseURL + a.Name,
@@ -326,7 +342,7 @@ func (a *Actor) newID() (hash string, url string) {
 
 // CreateNote posts an activityPub note to our followers
 //
-func (a *Actor) CreateNote(content, inReplyTo string) {
+func (a *Actor) CreateNote(content, inReplyTo string,attachment []interface{}) {
 	// for now I will just write this to the outbox
 	hash, id := a.newItemID()
 	create := make(map[string]interface{})
@@ -342,6 +358,9 @@ func (a *Actor) CreateNote(content, inReplyTo string) {
 	if inReplyTo != "" {
 		note["inReplyTo"] = inReplyTo
 	}
+	if inReplyTo != nil {
+	  note["attachment"] = attachment
+	}
 	note["id"] = id
 	note["published"] = time.Now().Format(time.RFC3339)
 	note["url"] = create["id"]