upgrade and use futures… then block_on .await in a trait?

Cargo.lock

@@ -2529,6 +2529,7 @@ dependencies = [
  "diesel",
  "diesel-derive-newtype",
  "diesel_migrations",
+ "futures 0.3.4",
  "glob",
  "guid-create",
  "heck",

plume-models/Cargo.toml

@@ -10,6 +10,7 @@ ammonia = "2.1.1"
 askama_escape = "0.1"
 bcrypt = "0.5"
 guid-create = "0.1"
+futures = "0.3"
 heck = "0.3.0"
 itertools = "0.8.0"
 lazy_static = "1.0"

plume-models/src/blogs.rs

@@ -132,7 +132,7 @@ impl Blog {
             .map_err(Error::from)
     }
 
-    pub fn find_by_fqn(c: &PlumeRocket, fqn: &str) -> Result<Blog> {
+    pub async fn find_by_fqn(c: &PlumeRocket, fqn: &str) -> Result<Blog> {
         let from_db = blogs::table
             .filter(blogs::fqn.eq(fqn))
             .first(&*c.conn)
@@ -140,12 +140,13 @@ impl Blog {
         if let Some(from_db) = from_db {
             Ok(from_db)
         } else {
-            Blog::fetch_from_webfinger(c, fqn)
+            Blog::fetch_from_webfinger(c, fqn).await
         }
     }
 
-    fn fetch_from_webfinger(c: &PlumeRocket, acct: &str) -> Result<Blog> {
-        resolve_with_prefix(Prefix::Group, acct.to_owned(), true)?
+    async fn fetch_from_webfinger(c: &PlumeRocket, acct: &str) -> Result<Blog> {
+        resolve_with_prefix(Prefix::Group, acct.to_owned(), true)
+            .await?
             .links
             .into_iter()
             .find(|l| l.mime_type == Some(String::from("application/activity+json")))

plume-models/src/lib.rs

@@ -4,6 +4,7 @@
 
 #[macro_use]
 extern crate diesel;
+extern crate futures;
 #[macro_use]
 extern crate lazy_static;
 #[macro_use]

plume-models/src/timeline/query.rs

@@ -7,7 +7,9 @@ use crate::{
     users::User,
     PlumeRocket, Result,
 };
+use futures::stream::{self, StreamExt};
 use plume_common::activity_pub::inbox::AsActor;
+use tokio::runtime::Runtime;
 use whatlang::{self, Lang};
 
 #[derive(Debug, Clone, PartialEq)]
@@ -295,10 +297,19 @@ impl WithList {
                 }
             }
             List::Array(list) => match self {
-                WithList::Blog => Ok(list
-                    .iter()
-                    .filter_map(|b| Blog::find_by_fqn(rocket, b).ok())
-                    .any(|b| b.id == post.blog_id)),
+                WithList::Blog => {
+                    let mut rt = Runtime::new().unwrap();
+                    rt.block_on(async move {
+                        Ok(stream::iter(list)
+                            .filter_map(|b| async move {
+                                Some(Blog::find_by_fqn(rocket, b).await.ok().unwrap())
+                            })
+                            .collect::<Vec<_>>()
+                            .await
+                            .into_iter()
+                            .any(|b| b.id == post.blog_id))
+                    })
+                }
                 WithList::Author { boosts, likes } => match kind {
                     Kind::Original => Ok(list
                         .iter()