Actually start playing with ActivityPub

And Rust

src/activity_pub/activity.rs

@@ -0,0 +1,16 @@
+use activity_pub::actor::Actor;
+use activity_pub::object::Object;
+
+pub struct Create<'a, T, U> where T: Actor + 'static, U: Object {
+    by: &'a T,
+    object: U
+}
+
+impl<'a, T: Actor, U: Object> Create<'a, T, U> {
+    pub fn new(by: &T, obj: U) -> Create<T, U> {
+        Create {
+            by: by,
+            object: obj
+        }
+    }
+}

src/activity_pub/actor.rs

@@ -1,6 +1,8 @@
 use diesel::PgConnection;
 
-use activity_pub::{activity, Activity, context};
+use activity_pub::{activity_pub, ActivityPub, context};
+use activity_pub::activity::Create;
+use activity_pub::object::{Attribuable, Object};
 use models::instance::Instance;
 
 pub enum ActorType {
@@ -26,8 +28,8 @@ pub trait Actor {
 
     fn get_actor_type() -> ActorType;
 
-    fn as_activity_pub (&self, conn: &PgConnection) -> Activity {
-        activity(json!({
+    fn as_activity_pub (&self, conn: &PgConnection) -> ActivityPub {
+        activity_pub(json!({
             "@context": context(),
             "id": self.compute_id(conn),
             "type": Self::get_actor_type().to_string(),
@@ -63,4 +65,9 @@ pub trait Actor {
             user = self.get_actor_id()
         )
     }
+
+    fn create<T>(&self, obj: T) -> Create<Self, T> where T: Object + Attribuable, Self: Actor + Sized {
+        obj.set_attribution::<Self>(self);
+        Create::<Self, T>::new(self, obj)
+    }
 }

src/activity_pub/mod.rs

@@ -3,10 +3,14 @@ use rocket::response::Content;
 use rocket_contrib::Json;
 use serde_json;
 
+pub mod activity;
 pub mod actor;
+pub mod object;
 pub mod webfinger;
 
-pub type Activity = Content<Json>;
+pub type ActivityPub = Content<Json>;
+
+pub const CONTEXT_URL: &'static str = "https://www.w3.org/ns/activitystreams";
 
 pub fn context() -> serde_json::Value {
     json!([
@@ -32,6 +36,6 @@ pub fn context() -> serde_json::Value {
     ])
 }
 
-pub fn activity(json: serde_json::Value) -> Activity {
+pub fn activity_pub(json: serde_json::Value) -> ActivityPub {
     Content(ContentType::new("application", "activity+json"), Json(json))
 }

src/activity_pub/object.rs

@@ -0,0 +1,7 @@
+use activity_pub::actor::Actor;
+
+pub trait Object {}
+
+pub trait Attribuable {
+    fn set_attribution<T>(&self, by: &T) where T: Actor;
+}