Add support for blog deletion

fix #181

plume-models/src/blogs.rs

@@ -17,13 +17,14 @@ use webfinger::*;
 use {BASE_URL, USE_HTTPS, Connection};
 use plume_common::activity_pub::{
     ap_accept_header, ApSignature, ActivityStream, Id, IntoId, PublicKey,
-    inbox::WithInbox,
+    inbox::{Deletable, WithInbox},
     sign
 };
 use safe_string::SafeString;
 use instance::*;
-use users::User;
+use posts::Post;
 use schema::blogs;
+use users::User;
 
 pub type CustomGroup = CustomObject<ApSignature, Group>;
 
@@ -273,6 +274,13 @@ impl Blog {
         json["fqn"] = json!(self.get_fqn(conn));
         json
     }
+
+    pub fn delete(&self, conn: &Connection) {
+        for post in Post::get_for_blog(conn, &self) {
+           post.delete(conn);
+        }
+        diesel::delete(self).execute(conn).expect("Blog::delete: blog deletion error");
+    }
 }
 
 impl IntoId for Blog {

src/main.rs

@@ -66,6 +66,7 @@ fn main() {
             routes::blogs::new,
             routes::blogs::new_auth,
             routes::blogs::create,
+            routes::blogs::delete,
             routes::blogs::atom_feed,
 
             routes::comments::create,

src/routes/blogs.rs

@@ -129,6 +129,19 @@ fn create(conn: DbConn, data: LenientForm<NewBlogForm>, user: User) -> Result<Re
     }
 }
 
+#[post("/~/<name>/delete")]
+fn delete(conn: DbConn, name: String, user: Option<User>) -> Result<Redirect, Option<Template>>{
+    let blog = Blog::find_local(&*conn, name).ok_or(None)?;
+    if user.map(|u| u.is_author_in(&*conn, blog.clone())).unwrap_or(false) {
+        blog.delete(&conn);
+        Ok(Redirect::to(uri!(super::instance::index)))
+    } else {
+        Err(Some(Template::render("errors/403", json!({// TODO actually return 403 error code
+            "error_message": "You are not allowed to delete this blog."
+        }))))
+    }
+}
+
 #[get("/~/<name>/outbox")]
 fn outbox(name: String, conn: DbConn) -> Option<ActivityStream<OrderedCollection>> {
     let blog = Blog::find_local(&*conn, name)?;

templates/blogs/details.html.tera

@@ -40,4 +40,11 @@
         </div>
         {{ macros::paginate(page=page, total=n_pages) }}
     </section>
+    {% if is_author %}
+    <h2>{{ "Danger zone" | _ }}</h2>
+    <p>{{ "Be very careful, any action taken here can't be cancelled." | _ }}
+    <form method="post" action="/~/{{ blog.fqn }}/delete">
+	    <input type="submit" class="inline-block button destructive" value="{{ "Delete this blog" | _ }}">
+    </form>
+    {% endif %}
 {% endblock content %}