From c9338027f26170dffc95a052ecfc3def1bf3a729 Mon Sep 17 00:00:00 2001
From: Felix Ableitner <me@nutomic.com>
Date: Fri, 3 Jul 2020 14:20:28 +0200
Subject: [PATCH] Migrate user and group to new activitystreams library

---
 docker/federation-test/run-tests.sh  |   4 +
 docker/federation/docker-compose.yml |   1 +
 server/Cargo.lock                    | 145 +++++++++++++++++++--------
 server/src/apub/comment.rs           |   2 +-
 server/src/apub/community.rs         | 136 +++++++++++++------------
 server/src/apub/fetcher.rs           |  91 +++++++++--------
 server/src/apub/mod.rs               |  18 ++--
 server/src/apub/post.rs              |   2 +-
 server/src/apub/private_message.rs   |   2 +-
 server/src/apub/shared_inbox.rs      |  88 ++++++++--------
 server/src/apub/user.rs              | 118 ++++++++++------------
 server/src/apub/user_inbox.rs        |  16 +--
 12 files changed, 346 insertions(+), 277 deletions(-)

diff --git a/docker/federation-test/run-tests.sh b/docker/federation-test/run-tests.sh
index 57c6cc8ff..3848414b9 100755
--- a/docker/federation-test/run-tests.sh
+++ b/docker/federation-test/run-tests.sh
@@ -1,6 +1,10 @@
 #!/bin/bash
 set -e
 
+# make sure there are no old containers or old data around
+sudo docker-compose --file ../federation/docker-compose.yml --project-directory . down
+sudo rm -rf volumes
+
 pushd ../../server/
 cargo build
 popd
diff --git a/docker/federation/docker-compose.yml b/docker/federation/docker-compose.yml
index cbc648e65..c552d18fd 100644
--- a/docker/federation/docker-compose.yml
+++ b/docker/federation/docker-compose.yml
@@ -110,3 +110,4 @@ services:
     image: dogbin/iframely:latest
     volumes:
       - ../iframely.config.local.js:/iframely/config.local.js:ro
+    restart: always
diff --git a/server/Cargo.lock b/server/Cargo.lock
index c54419e10..6d6364d4e 100644
--- a/server/Cargo.lock
+++ b/server/Cargo.lock
@@ -63,7 +63,7 @@ dependencies = [
  "futures-util",
  "log",
  "once_cell",
- "parking_lot",
+ "parking_lot 0.10.2",
  "pin-project",
  "smallvec",
  "tokio",
@@ -269,7 +269,7 @@ dependencies = [
  "lazy_static",
  "log",
  "num_cpus",
- "parking_lot",
+ "parking_lot 0.10.2",
  "threadpool",
 ]
 
@@ -397,6 +397,12 @@ dependencies = [
  "gimli",
 ]
 
+[[package]]
+name = "adler"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ccc9a9dd069569f212bc4330af9f17c4afb5e8ce185e83dbb14f1349dda18b10"
+
 [[package]]
 name = "adler32"
 version = "1.1.0"
@@ -506,7 +512,7 @@ dependencies = [
  "addr2line",
  "cfg-if",
  "libc",
- "miniz_oxide",
+ "miniz_oxide 0.3.7",
  "object",
  "rustc-demangle",
 ]
@@ -680,9 +686,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.55"
+version = "1.0.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1be3409f94d7bdceeb5f5fac551039d9b3f00e25da7a74fc4d33400a0d96368"
+checksum = "0fde55d2a2bfaa4c9668bbc63f531fbdeee3ffe188f4662511ce2c22b3eedebe"
 
 [[package]]
 name = "cfg-if"
@@ -692,9 +698,9 @@ checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
 [[package]]
 name = "chrono"
-version = "0.4.11"
+version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "80094f509cf8b5ae86a4966a39b3ff66cd7e2a3e594accec3743ff3fabeab5b2"
+checksum = "f0fee792e164f78f5fe0c296cc2eb3688a2ca2b70cdff33040922d298203f0c4"
 dependencies = [
  "num-integer",
  "num-traits 0.2.12",
@@ -726,6 +732,15 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "cloudabi"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4344512281c643ae7638bbabc3af17a11307803ec8f0fcad9fae512a8bf36467"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "comrak"
 version = "0.7.0"
@@ -1120,14 +1135,14 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.0.14"
+version = "1.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2cfff41391129e0a856d6d822600b8d71179d46879e310417eb9c762eb178b42"
+checksum = "68c90b0fc46cf89d227cc78b40e494ff81287a92dd07631e5af0d06fe3cf885e"
 dependencies = [
  "cfg-if",
  "crc32fast",
  "libc",
- "miniz_oxide",
+ "miniz_oxide 0.4.0",
 ]
 
 [[package]]
@@ -1470,6 +1485,12 @@ dependencies = [
  "autocfg 1.0.0",
 ]
 
+[[package]]
+name = "instant"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69da7ce1490173c2bf4d26bc8be429aaeeaf4cce6c4b970b7949651fa17655fe"
+
 [[package]]
 name = "iovec"
 version = "0.1.4"
@@ -1508,18 +1529,18 @@ checksum = "dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6"
 
 [[package]]
 name = "js-sys"
-version = "0.3.40"
+version = "0.3.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce10c23ad2ea25ceca0093bd3192229da4c5b3c0f2de499c1ecac0d98d452177"
+checksum = "c4b9172132a62451e56142bff9afc91c8e4a4500aa5b847da36815b63bfda916"
 dependencies = [
  "wasm-bindgen",
 ]
 
 [[package]]
 name = "jsonwebtoken"
-version = "7.1.2"
+version = "7.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1f325ae57ddcf609f02d891486ce740f5bbd0cc3e93f9bffaacdf6594b21404"
+checksum = "afabcc15e437a6484fc4f12d0fd63068fe457bf93f1c148d3d9649c60b103f32"
 dependencies = [
  "base64 0.12.3",
  "pem",
@@ -1676,6 +1697,15 @@ dependencies = [
  "scopeguard",
 ]
 
+[[package]]
+name = "lock_api"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de302ce1fe7482db13738fbaf2e21cfb06a986b89c0bf38d88abf16681aada4e"
+dependencies = [
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.8"
@@ -1781,6 +1811,15 @@ dependencies = [
  "adler32",
 ]
 
+[[package]]
+name = "miniz_oxide"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be0f75932c1f6cfae3c04000e40114adf955636e19040f9c0a2c380702aa1c7f"
+dependencies = [
+ "adler",
+]
+
 [[package]]
 name = "mio"
 version = "0.6.22"
@@ -1985,8 +2024,19 @@ version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3a704eb390aafdc107b0e392f56a82b668e3a71366993b5340f5833fd62505e"
 dependencies = [
- "lock_api",
- "parking_lot_core",
+ "lock_api 0.3.4",
+ "parking_lot_core 0.7.2",
+]
+
+[[package]]
+name = "parking_lot"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4893845fa2ca272e647da5d0e46660a314ead9c2fdd9a883aabc32e481a8733"
+dependencies = [
+ "instant",
+ "lock_api 0.4.0",
+ "parking_lot_core 0.8.0",
 ]
 
 [[package]]
@@ -1996,7 +2046,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d58c7c768d4ba344e3e8d72518ac13e259d7c7ade24167003b8488e10b6740a3"
 dependencies = [
  "cfg-if",
- "cloudabi",
+ "cloudabi 0.0.3",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c361aa727dd08437f2f1447be8b59a33b0edd15e0fcee698f935613d9efbca9b"
+dependencies = [
+ "cfg-if",
+ "cloudabi 0.1.0",
+ "instant",
  "libc",
  "redox_syscall",
  "smallvec",
@@ -2164,12 +2229,12 @@ dependencies = [
 
 [[package]]
 name = "r2d2"
-version = "0.8.8"
+version = "0.8.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1497e40855348e4a8a40767d8e55174bce1e445a3ac9254ad44ad468ee0485af"
+checksum = "545c5bc2b880973c9c10e4067418407a0ccaa3091781d1671d46eb35107cb26f"
 dependencies = [
  "log",
- "parking_lot",
+ "parking_lot 0.11.0",
  "scheduled-thread-pool",
 ]
 
@@ -2306,7 +2371,7 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7b75f676a1e053fc562eafbb47838d67c84801e38fc1ba459e8f180deabd5071"
 dependencies = [
- "cloudabi",
+ "cloudabi 0.0.3",
  "fuchsia-cprng",
  "libc",
  "rand_core 0.4.2",
@@ -2462,11 +2527,11 @@ dependencies = [
 
 [[package]]
 name = "scheduled-thread-pool"
-version = "0.2.4"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0988d7fdf88d5e5fcf5923a0f1e8ab345f3e98ab4bc6bc45a2d5ff7f7458fbf6"
+checksum = "dc6f74fd1204073fa02d5d5d68bec8021be4c38690b61264b2fdb48083d0e7d7"
 dependencies = [
- "parking_lot",
+ "parking_lot 0.11.0",
 ]
 
 [[package]]
@@ -2570,9 +2635,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.55"
+version = "1.0.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec2c5d7e739bc07a3e73381a39d61fdb5f671c60c1df26a130690665803d8226"
+checksum = "3433e879a558dde8b5e8feb2a04899cf34fdde1fafb894687e52105fc1162ac3"
 dependencies = [
  "indexmap",
  "itoa",
@@ -3106,9 +3171,9 @@ checksum = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
 
 [[package]]
 name = "unicode-width"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
+checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
 
 [[package]]
 name = "unicode-xid"
@@ -3222,9 +3287,9 @@ checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.63"
+version = "0.2.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c2dc4aa152834bc334f506c1a06b866416a8b6697d5c9f75b9a689c8486def0"
+checksum = "6a634620115e4a229108b71bde263bb4220c483b3f07f5ba514ee8d15064c4c2"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -3232,9 +3297,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.63"
+version = "0.2.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ded84f06e0ed21499f6184df0e0cb3494727b0c5da89534e0fcc55c51d812101"
+checksum = "3e53963b583d18a5aa3aaae4b4c1cb535218246131ba22a71f05b518098571df"
 dependencies = [
  "bumpalo",
  "lazy_static",
@@ -3247,9 +3312,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.63"
+version = "0.2.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "838e423688dac18d73e31edce74ddfac468e37b1506ad163ffaf0a46f703ffe3"
+checksum = "3fcfd5ef6eec85623b4c6e844293d4516470d8f19cd72d0d12246017eb9060b8"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -3257,9 +3322,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.63"
+version = "0.2.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3156052d8ec77142051a533cdd686cba889537b213f948cd1d20869926e68e92"
+checksum = "9adff9ee0e94b926ca81b57f57f86d5545cdcb1d259e21ec9bdd95b901754c75"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3270,15 +3335,15 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.63"
+version = "0.2.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9ba19973a58daf4db6f352eda73dc0e289493cd29fb2632eb172085b6521acd"
+checksum = "7f7b90ea6c632dd06fd765d44542e234d5e63d9bb917ecd64d79778a13bd79ae"
 
 [[package]]
 name = "web-sys"
-version = "0.3.40"
+version = "0.3.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b72fe77fd39e4bd3eaa4412fd299a0be6b3dfe9d2597e2f1c20beb968f41d17"
+checksum = "863539788676619aac1a23e2df3655e96b32b0e05eb72ca34ba045ad573c625d"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
diff --git a/server/src/apub/comment.rs b/server/src/apub/comment.rs
index a42a52c2e..dbc15909e 100644
--- a/server/src/apub/comment.rs
+++ b/server/src/apub/comment.rs
@@ -123,7 +123,7 @@ impl FromApub for CommentForm {
 
   /// Parse an ActivityPub note received from another instance into a Lemmy comment
   async fn from_apub(
-    note: &Note,
+    note: &mut Note,
     client: &Client,
     pool: &DbPool,
   ) -> Result<CommentForm, LemmyError> {
diff --git a/server/src/apub/community.rs b/server/src/apub/community.rs
index f866511c8..bfc896af6 100644
--- a/server/src/apub/community.rs
+++ b/server/src/apub/community.rs
@@ -4,7 +4,7 @@ use crate::{
     create_apub_response,
     create_apub_tombstone_response,
     create_tombstone,
-    extensions::{group_extensions::GroupExtension, signatures::PublicKey},
+    extensions::group_extensions::GroupExtension,
     fetcher::get_or_fetch_and_upsert_remote_user,
     get_shared_inbox,
     ActorType,
@@ -27,21 +27,25 @@ use crate::{
 };
 use activitystreams::{
   activity::{Accept, Announce, Delete, Remove, Undo},
-  actor::{kind::GroupType, properties::ApActorProperties, Group},
-  collection::UnorderedCollection,
-  context,
-  endpoint::EndpointProperties,
-  object::properties::ObjectProperties,
   Activity,
   Base,
   BaseBox,
 };
-use activitystreams_ext::Ext3;
-use activitystreams_new::{activity::Follow, object::Tombstone};
+use activitystreams_ext::Ext2;
+use activitystreams_new::{
+  activity::Follow,
+  actor::{kind::GroupType, ApActor, Endpoints, Group},
+  base::BaseExt,
+  collection::UnorderedCollection,
+  context,
+  object::Tombstone,
+  prelude::*,
+  primitives::{XsdAnyUri, XsdDateTime},
+};
 use actix_web::{body::Body, client::Client, web, HttpResponse};
 use itertools::Itertools;
 use serde::{Deserialize, Serialize};
-use std::fmt::Debug;
+use std::{fmt::Debug, str::FromStr};
 
 #[derive(Deserialize)]
 pub struct CommunityQuery {
@@ -54,9 +58,6 @@ impl ToApub for Community {
 
   // Turn a Lemmy Community into an ActivityPub group that can be sent out over the network.
   async fn to_apub(&self, pool: &DbPool) -> Result<GroupExt, LemmyError> {
-    let mut group = Group::default();
-    let oprops: &mut ObjectProperties = group.as_mut();
-
     // The attributed to, is an ordered vector with the creator actor_ids first,
     // then the rest of the moderators
     // TODO Technically the instance admins can mod the community, but lets
@@ -66,36 +67,36 @@ impl ToApub for Community {
       CommunityModeratorView::for_community(&conn, id)
     })
     .await??;
-    let moderators = moderators.into_iter().map(|m| m.user_actor_id).collect();
+    let moderators: Vec<String> = moderators.into_iter().map(|m| m.user_actor_id).collect();
 
-    oprops
-      .set_context_xsd_any_uri(context())?
-      .set_id(self.actor_id.to_owned())?
-      .set_name_xsd_string(self.name.to_owned())?
-      .set_published(convert_datetime(self.published))?
-      .set_many_attributed_to_xsd_any_uris(moderators)?;
+    let mut group = Group::new();
+    group
+      .set_context(context())
+      .set_id(XsdAnyUri::from_str(&self.actor_id)?)
+      .set_name(self.name.to_owned())
+      .set_published(XsdDateTime::from(convert_datetime(self.published)))
+      .set_many_attributed_tos(moderators);
 
     if let Some(u) = self.updated.to_owned() {
-      oprops.set_updated(convert_datetime(u))?;
+      group.set_updated(XsdDateTime::from(convert_datetime(u)));
     }
     if let Some(d) = self.description.to_owned() {
       // TODO: this should be html, also add source field with raw markdown
       //       -> same for post.content and others
-      oprops.set_content_xsd_string(d)?;
+      group.set_content(d);
     }
 
-    let mut endpoint_props = EndpointProperties::default();
-
-    endpoint_props.set_shared_inbox(self.get_shared_inbox_url())?;
-
-    let mut actor_props = ApActorProperties::default();
-
-    actor_props
-      .set_preferred_username(self.title.to_owned())?
-      .set_inbox(self.get_inbox_url())?
-      .set_outbox(self.get_outbox_url())?
-      .set_endpoints(endpoint_props)?
-      .set_followers(self.get_followers_url())?;
+    let mut ap_actor = ApActor::new(self.get_inbox_url().parse()?, group);
+    ap_actor
+      .set_preferred_username(self.title.to_owned())
+      .set_outbox(self.get_outbox_url().parse()?)
+      .set_followers(self.get_followers_url().parse()?)
+      .set_following(self.get_following_url().parse()?)
+      .set_liked(self.get_liked_url().parse()?)
+      .set_endpoints(Endpoints {
+        shared_inbox: Some(self.get_shared_inbox_url().parse()?),
+        ..Default::default()
+      });
 
     let nsfw = self.nsfw;
     let category_id = self.category_id;
@@ -104,10 +105,9 @@ impl ToApub for Community {
     })
     .await??;
 
-    Ok(Ext3::new(
-      group,
+    Ok(Ext2::new(
+      ap_actor,
       group_extension,
-      actor_props,
       self.get_public_key_ext(),
     ))
   }
@@ -367,38 +367,52 @@ impl FromApub for CommunityForm {
   type ApubType = GroupExt;
 
   /// Parse an ActivityPub group received from another instance into a Lemmy community.
-  async fn from_apub(group: &GroupExt, client: &Client, pool: &DbPool) -> Result<Self, LemmyError> {
-    let group_extensions: &GroupExtension = &group.ext_one;
-    let oprops = &group.inner.object_props;
-    let aprops = &group.ext_two;
-    let public_key: &PublicKey = &group.ext_three.public_key;
-
-    let mut creator_and_moderator_uris = oprops.get_many_attributed_to_xsd_any_uris().unwrap();
-    let creator_uri = creator_and_moderator_uris.next().unwrap();
+  async fn from_apub(
+    group: &mut GroupExt,
+    client: &Client,
+    pool: &DbPool,
+  ) -> Result<Self, LemmyError> {
+    // TODO: this is probably gonna cause problems cause fetcher:292 also calls take_attributed_to()
+    let creator_and_moderator_uris = group.clone().take_attributed_to().unwrap();
+    let creator_uri = creator_and_moderator_uris
+      .as_many()
+      .unwrap()
+      .iter()
+      .next()
+      .unwrap()
+      .as_xsd_any_uri()
+      .unwrap();
 
     let creator = get_or_fetch_and_upsert_remote_user(creator_uri.as_str(), client, pool).await?;
 
     Ok(CommunityForm {
-      name: oprops.get_name_xsd_string().unwrap().to_string(),
-      title: aprops.get_preferred_username().unwrap().to_string(),
+      name: group
+        .take_name()
+        .unwrap()
+        .as_single_xsd_string()
+        .unwrap()
+        .into(),
+      title: group.inner.take_preferred_username().unwrap(),
       // TODO: should be parsed as html and tags like <script> removed (or use markdown source)
       //       -> same for post.content etc
-      description: oprops.get_content_xsd_string().map(|s| s.to_string()),
-      category_id: group_extensions.category.identifier.parse::<i32>()?,
+      description: group
+        .take_content()
+        .map(|s| s.as_single_xsd_string().unwrap().into()),
+      category_id: group.ext_one.category.identifier.parse::<i32>()?,
       creator_id: creator.id,
       removed: None,
-      published: oprops
-        .get_published()
+      published: group
+        .take_published()
         .map(|u| u.as_ref().to_owned().naive_local()),
-      updated: oprops
-        .get_updated()
+      updated: group
+        .take_updated()
         .map(|u| u.as_ref().to_owned().naive_local()),
       deleted: None,
-      nsfw: group_extensions.sensitive,
-      actor_id: oprops.get_id().unwrap().to_string(),
+      nsfw: group.ext_one.sensitive,
+      actor_id: group.id().unwrap().to_string(),
       local: false,
       private_key: None,
-      public_key: Some(public_key.to_owned().public_key_pem),
+      public_key: Some(group.ext_two.to_owned().public_key.public_key_pem),
       last_refreshed_at: Some(naive_now()),
     })
   }
@@ -439,14 +453,12 @@ pub async fn get_apub_community_followers(
   })
   .await??;
 
-  let mut collection = UnorderedCollection::default();
-  let oprops: &mut ObjectProperties = collection.as_mut();
-  oprops
-    .set_context_xsd_any_uri(context())?
-    .set_id(community.actor_id)?;
+  let mut collection = UnorderedCollection::new(vec![]);
   collection
-    .collection_props
-    .set_total_items(community_followers.len() as u64)?;
+    .set_context(context())
+    // TODO: this needs its own ID
+    .set_id(community.actor_id.parse()?)
+    .set_total_items(community_followers.len() as u64);
   Ok(create_apub_response(&collection))
 }
 
diff --git a/server/src/apub/fetcher.rs b/server/src/apub/fetcher.rs
index 598903d0c..d8a1e764f 100644
--- a/server/src/apub/fetcher.rs
+++ b/server/src/apub/fetcher.rs
@@ -1,13 +1,14 @@
-use activitystreams::object::Note;
-use actix_web::client::Client;
-use diesel::{result::Error::NotFound, PgConnection};
-use log::debug;
-use serde::Deserialize;
-use std::{fmt::Debug, time::Duration};
-use url::Url;
-
 use crate::{
   api::site::SearchResponse,
+  apub::{
+    get_apub_protocol_string,
+    is_apub_id_valid,
+    FromApub,
+    GroupExt,
+    PageExt,
+    PersonExt,
+    APUB_JSON_CONTENT_TYPE,
+  },
   blocking,
   db::{
     comment::{Comment, CommentForm},
@@ -17,6 +18,7 @@ use crate::{
     post::{Post, PostForm},
     post_view::PostView,
     user::{UserForm, User_},
+    user_view::UserView,
     Crud,
     Joinable,
     SearchType,
@@ -27,20 +29,15 @@ use crate::{
   DbPool,
   LemmyError,
 };
-
-use crate::{
-  apub::{
-    get_apub_protocol_string,
-    is_apub_id_valid,
-    FromApub,
-    GroupExt,
-    PageExt,
-    PersonExt,
-    APUB_JSON_CONTENT_TYPE,
-  },
-  db::user_view::UserView,
-};
+use activitystreams::object::Note;
+use activitystreams_new::{base::BaseExt, prelude::*, primitives::XsdAnyUri};
+use actix_web::client::Client;
 use chrono::NaiveDateTime;
+use diesel::{result::Error::NotFound, PgConnection};
+use log::debug;
+use serde::Deserialize;
+use std::{fmt::Debug, time::Duration};
+use url::Url;
 
 static ACTOR_REFETCH_INTERVAL_SECONDS: i64 = 24 * 60 * 60;
 
@@ -149,7 +146,7 @@ pub async fn search_by_apub_id(
 
   let response = match fetch_remote_object::<SearchAcceptedObjects>(client, &query_url).await? {
     SearchAcceptedObjects::Person(p) => {
-      let user_uri = p.inner.object_props.get_id().unwrap().to_string();
+      let user_uri = p.inner.id().unwrap().to_string();
 
       let user = get_or_fetch_and_upsert_remote_user(&user_uri, client, pool).await?;
 
@@ -158,7 +155,7 @@ pub async fn search_by_apub_id(
       response
     }
     SearchAcceptedObjects::Group(g) => {
-      let community_uri = g.inner.object_props.get_id().unwrap().to_string();
+      let community_uri = g.inner.id().unwrap().to_string();
 
       let community =
         get_or_fetch_and_upsert_remote_community(&community_uri, client, pool).await?;
@@ -174,15 +171,15 @@ pub async fn search_by_apub_id(
 
       response
     }
-    SearchAcceptedObjects::Page(p) => {
-      let post_form = PostForm::from_apub(&p, client, pool).await?;
+    SearchAcceptedObjects::Page(mut p) => {
+      let post_form = PostForm::from_apub(&mut p, client, pool).await?;
 
       let p = blocking(pool, move |conn| upsert_post(&post_form, conn)).await??;
       response.posts = vec![blocking(pool, move |conn| PostView::read(conn, p.id, None)).await??];
 
       response
     }
-    SearchAcceptedObjects::Comment(c) => {
+    SearchAcceptedObjects::Comment(mut c) => {
       let post_url = c
         .object_props
         .get_many_in_reply_to_xsd_any_uris()
@@ -192,9 +189,9 @@ pub async fn search_by_apub_id(
         .to_string();
 
       // TODO: also fetch parent comments if any
-      let post = fetch_remote_object(client, &Url::parse(&post_url)?).await?;
-      let post_form = PostForm::from_apub(&post, client, pool).await?;
-      let comment_form = CommentForm::from_apub(&c, client, pool).await?;
+      let mut post = fetch_remote_object(client, &Url::parse(&post_url)?).await?;
+      let post_form = PostForm::from_apub(&mut post, client, pool).await?;
+      let comment_form = CommentForm::from_apub(&mut c, client, pool).await?;
 
       blocking(pool, move |conn| upsert_post(&post_form, conn)).await??;
       let c = blocking(pool, move |conn| upsert_comment(&comment_form, conn)).await??;
@@ -224,9 +221,9 @@ pub async fn get_or_fetch_and_upsert_remote_user(
     // If its older than a day, re-fetch it
     Ok(u) if !u.local && should_refetch_actor(u.last_refreshed_at) => {
       debug!("Fetching and updating from remote user: {}", apub_id);
-      let person = fetch_remote_object::<PersonExt>(client, &Url::parse(apub_id)?).await?;
+      let mut person = fetch_remote_object::<PersonExt>(client, &Url::parse(apub_id)?).await?;
 
-      let mut uf = UserForm::from_apub(&person, client, pool).await?;
+      let mut uf = UserForm::from_apub(&mut person, client, pool).await?;
       uf.last_refreshed_at = Some(naive_now());
       let user = blocking(pool, move |conn| User_::update(conn, u.id, &uf)).await??;
 
@@ -235,9 +232,9 @@ pub async fn get_or_fetch_and_upsert_remote_user(
     Ok(u) => Ok(u),
     Err(NotFound {}) => {
       debug!("Fetching and creating remote user: {}", apub_id);
-      let person = fetch_remote_object::<PersonExt>(client, &Url::parse(apub_id)?).await?;
+      let mut person = fetch_remote_object::<PersonExt>(client, &Url::parse(apub_id)?).await?;
 
-      let uf = UserForm::from_apub(&person, client, pool).await?;
+      let uf = UserForm::from_apub(&mut person, client, pool).await?;
       let user = blocking(pool, move |conn| User_::create(conn, &uf)).await??;
 
       Ok(user)
@@ -275,9 +272,9 @@ pub async fn get_or_fetch_and_upsert_remote_community(
   match community {
     Ok(c) if !c.local && should_refetch_actor(c.last_refreshed_at) => {
       debug!("Fetching and updating from remote community: {}", apub_id);
-      let group = fetch_remote_object::<GroupExt>(client, &Url::parse(apub_id)?).await?;
+      let mut group = fetch_remote_object::<GroupExt>(client, &Url::parse(apub_id)?).await?;
 
-      let mut cf = CommunityForm::from_apub(&group, client, pool).await?;
+      let mut cf = CommunityForm::from_apub(&mut group, client, pool).await?;
       cf.last_refreshed_at = Some(naive_now());
       let community = blocking(pool, move |conn| Community::update(conn, c.id, &cf)).await??;
 
@@ -286,17 +283,19 @@ pub async fn get_or_fetch_and_upsert_remote_community(
     Ok(c) => Ok(c),
     Err(NotFound {}) => {
       debug!("Fetching and creating remote community: {}", apub_id);
-      let group = fetch_remote_object::<GroupExt>(client, &Url::parse(apub_id)?).await?;
+      let mut group = fetch_remote_object::<GroupExt>(client, &Url::parse(apub_id)?).await?;
 
-      let cf = CommunityForm::from_apub(&group, client, pool).await?;
+      let cf = CommunityForm::from_apub(&mut group, client, pool).await?;
       let community = blocking(pool, move |conn| Community::create(conn, &cf)).await??;
 
       // Also add the community moderators too
-      let creator_and_moderator_uris = group
-        .inner
-        .object_props
-        .get_many_attributed_to_xsd_any_uris()
-        .unwrap();
+      let attributed_to = group.inner.take_attributed_to().unwrap();
+      let creator_and_moderator_uris: Vec<&XsdAnyUri> = attributed_to
+        .as_many()
+        .unwrap()
+        .iter()
+        .map(|a| a.as_xsd_any_uri().unwrap())
+        .collect();
 
       let mut creator_and_moderators = Vec::new();
 
@@ -350,8 +349,8 @@ pub async fn get_or_fetch_and_insert_remote_post(
     Ok(p) => Ok(p),
     Err(NotFound {}) => {
       debug!("Fetching and creating remote post: {}", post_ap_id);
-      let post = fetch_remote_object::<PageExt>(client, &Url::parse(post_ap_id)?).await?;
-      let post_form = PostForm::from_apub(&post, client, pool).await?;
+      let mut post = fetch_remote_object::<PageExt>(client, &Url::parse(post_ap_id)?).await?;
+      let post_form = PostForm::from_apub(&mut post, client, pool).await?;
 
       let post = blocking(pool, move |conn| Post::create(conn, &post_form)).await??;
 
@@ -388,8 +387,8 @@ pub async fn get_or_fetch_and_insert_remote_comment(
         "Fetching and creating remote comment and its parents: {}",
         comment_ap_id
       );
-      let comment = fetch_remote_object::<Note>(client, &Url::parse(comment_ap_id)?).await?;
-      let comment_form = CommentForm::from_apub(&comment, client, pool).await?;
+      let mut comment = fetch_remote_object::<Note>(client, &Url::parse(comment_ap_id)?).await?;
+      let comment_form = CommentForm::from_apub(&mut comment, client, pool).await?;
 
       let comment = blocking(pool, move |conn| Comment::create(conn, &comment_form)).await??;
 
diff --git a/server/src/apub/mod.rs b/server/src/apub/mod.rs
index 90df87342..561dc49a1 100644
--- a/server/src/apub/mod.rs
+++ b/server/src/apub/mod.rs
@@ -25,20 +25,22 @@ use crate::{
   MentionData,
   Settings,
 };
-use activitystreams::{
-  actor::{properties::ApActorProperties, Group, Person},
-  object::Page,
+use activitystreams::object::Page;
+use activitystreams_ext::{Ext1, Ext2};
+use activitystreams_new::{
+  activity::Follow,
+  actor::{ApActor, Group, Person},
+  object::Tombstone,
+  prelude::*,
 };
-use activitystreams_ext::{Ext1, Ext2, Ext3};
-use activitystreams_new::{activity::Follow, object::Tombstone, prelude::*};
 use actix_web::{body::Body, client::Client, HttpResponse};
 use chrono::NaiveDateTime;
 use log::debug;
 use serde::Serialize;
 use url::Url;
 
-type GroupExt = Ext3<Group, GroupExtension, ApActorProperties, PublicKeyExtension>;
-type PersonExt = Ext2<Person, ApActorProperties, PublicKeyExtension>;
+type GroupExt = Ext2<ApActor<Group>, GroupExtension, PublicKeyExtension>;
+type PersonExt = Ext1<ApActor<Person>, PublicKeyExtension>;
 type PageExt = Ext1<Page, PageExtension>;
 
 pub static APUB_JSON_CONTENT_TYPE: &str = "application/activity+json";
@@ -163,7 +165,7 @@ fn create_tombstone(
 pub trait FromApub {
   type ApubType;
   async fn from_apub(
-    apub: &Self::ApubType,
+    apub: &mut Self::ApubType,
     client: &Client,
     pool: &DbPool,
   ) -> Result<Self, LemmyError>
diff --git a/server/src/apub/post.rs b/server/src/apub/post.rs
index 60cb0b557..255629e8d 100644
--- a/server/src/apub/post.rs
+++ b/server/src/apub/post.rs
@@ -164,7 +164,7 @@ impl FromApub for PostForm {
 
   /// Parse an ActivityPub page received from another instance into a Lemmy post.
   async fn from_apub(
-    page: &PageExt,
+    page: &mut PageExt,
     client: &Client,
     pool: &DbPool,
   ) -> Result<PostForm, LemmyError> {
diff --git a/server/src/apub/private_message.rs b/server/src/apub/private_message.rs
index ae4c36267..48bbd1f0f 100644
--- a/server/src/apub/private_message.rs
+++ b/server/src/apub/private_message.rs
@@ -71,7 +71,7 @@ impl FromApub for PrivateMessageForm {
 
   /// Parse an ActivityPub note received from another instance into a Lemmy Private message
   async fn from_apub(
-    note: &Note,
+    note: &mut Note,
     client: &Client,
     pool: &DbPool,
   ) -> Result<PrivateMessageForm, LemmyError> {
diff --git a/server/src/apub/shared_inbox.rs b/server/src/apub/shared_inbox.rs
index 667732523..fa9794b25 100644
--- a/server/src/apub/shared_inbox.rs
+++ b/server/src/apub/shared_inbox.rs
@@ -335,7 +335,7 @@ async fn receive_create_post(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let page = create
+  let mut page = create
     .create_props
     .get_object_base_box()
     .to_owned()
@@ -353,7 +353,7 @@ async fn receive_create_post(
 
   insert_activity(user.id, create, false, pool).await?;
 
-  let post = PostForm::from_apub(&page, client, pool).await?;
+  let post = PostForm::from_apub(&mut page, client, pool).await?;
 
   let inserted_post = blocking(pool, move |conn| Post::create(conn, &post)).await??;
 
@@ -381,7 +381,7 @@ async fn receive_create_comment(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let note = create
+  let mut note = create
     .create_props
     .get_object_base_box()
     .to_owned()
@@ -399,7 +399,7 @@ async fn receive_create_comment(
 
   insert_activity(user.id, create, false, pool).await?;
 
-  let comment = CommentForm::from_apub(&note, client, pool).await?;
+  let comment = CommentForm::from_apub(&mut note, client, pool).await?;
 
   let inserted_comment = blocking(pool, move |conn| Comment::create(conn, &comment)).await??;
 
@@ -440,7 +440,7 @@ async fn receive_update_post(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let page = update
+  let mut page = update
     .update_props
     .get_object_base_box()
     .to_owned()
@@ -458,7 +458,7 @@ async fn receive_update_post(
 
   insert_activity(user.id, update, false, pool).await?;
 
-  let post = PostForm::from_apub(&page, client, pool).await?;
+  let post = PostForm::from_apub(&mut page, client, pool).await?;
 
   let post_id = get_or_fetch_and_insert_remote_post(&post.ap_id, client, pool)
     .await?
@@ -486,7 +486,7 @@ async fn receive_like_post(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let page = like
+  let mut page = like
     .like_props
     .get_object_base_box()
     .to_owned()
@@ -500,7 +500,7 @@ async fn receive_like_post(
 
   insert_activity(user.id, like, false, pool).await?;
 
-  let post = PostForm::from_apub(&page, client, pool).await?;
+  let post = PostForm::from_apub(&mut page, client, pool).await?;
 
   let post_id = get_or_fetch_and_insert_remote_post(&post.ap_id, client, pool)
     .await?
@@ -537,7 +537,7 @@ async fn receive_dislike_post(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let page = dislike
+  let mut page = dislike
     .dislike_props
     .get_object_base_box()
     .to_owned()
@@ -555,7 +555,7 @@ async fn receive_dislike_post(
 
   insert_activity(user.id, dislike, false, pool).await?;
 
-  let post = PostForm::from_apub(&page, client, pool).await?;
+  let post = PostForm::from_apub(&mut page, client, pool).await?;
 
   let post_id = get_or_fetch_and_insert_remote_post(&post.ap_id, client, pool)
     .await?
@@ -592,7 +592,7 @@ async fn receive_update_comment(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let note = update
+  let mut note = update
     .update_props
     .get_object_base_box()
     .to_owned()
@@ -610,7 +610,7 @@ async fn receive_update_comment(
 
   insert_activity(user.id, update, false, pool).await?;
 
-  let comment = CommentForm::from_apub(&note, client, pool).await?;
+  let comment = CommentForm::from_apub(&mut note, client, pool).await?;
 
   let comment_id = get_or_fetch_and_insert_remote_comment(&comment.ap_id, client, pool)
     .await?
@@ -651,7 +651,7 @@ async fn receive_like_comment(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let note = like
+  let mut note = like
     .like_props
     .get_object_base_box()
     .to_owned()
@@ -665,7 +665,7 @@ async fn receive_like_comment(
 
   insert_activity(user.id, like, false, pool).await?;
 
-  let comment = CommentForm::from_apub(&note, client, pool).await?;
+  let comment = CommentForm::from_apub(&mut note, client, pool).await?;
 
   let comment_id = get_or_fetch_and_insert_remote_comment(&comment.ap_id, client, pool)
     .await?
@@ -709,7 +709,7 @@ async fn receive_dislike_comment(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let note = dislike
+  let mut note = dislike
     .dislike_props
     .get_object_base_box()
     .to_owned()
@@ -727,7 +727,7 @@ async fn receive_dislike_comment(
 
   insert_activity(user.id, dislike, false, pool).await?;
 
-  let comment = CommentForm::from_apub(&note, client, pool).await?;
+  let comment = CommentForm::from_apub(&mut note, client, pool).await?;
 
   let comment_id = get_or_fetch_and_insert_remote_comment(&comment.ap_id, client, pool)
     .await?
@@ -777,7 +777,7 @@ async fn receive_delete_community(
     .unwrap()
     .to_string();
 
-  let group = delete
+  let mut group = delete
     .delete_props
     .get_object_base_box()
     .to_owned()
@@ -789,7 +789,7 @@ async fn receive_delete_community(
 
   insert_activity(user.id, delete, false, pool).await?;
 
-  let community_actor_id = CommunityForm::from_apub(&group, client, pool)
+  let community_actor_id = CommunityForm::from_apub(&mut group, client, pool)
     .await?
     .actor_id;
 
@@ -854,7 +854,7 @@ async fn receive_remove_community(
     .unwrap()
     .to_string();
 
-  let group = remove
+  let mut group = remove
     .remove_props
     .get_object_base_box()
     .to_owned()
@@ -866,7 +866,7 @@ async fn receive_remove_community(
 
   insert_activity(mod_.id, remove, false, pool).await?;
 
-  let community_actor_id = CommunityForm::from_apub(&group, client, pool)
+  let community_actor_id = CommunityForm::from_apub(&mut group, client, pool)
     .await?
     .actor_id;
 
@@ -931,7 +931,7 @@ async fn receive_delete_post(
     .unwrap()
     .to_string();
 
-  let page = delete
+  let mut page = delete
     .delete_props
     .get_object_base_box()
     .to_owned()
@@ -943,7 +943,7 @@ async fn receive_delete_post(
 
   insert_activity(user.id, delete, false, pool).await?;
 
-  let post_ap_id = PostForm::from_apub(&page, client, pool).await?.ap_id;
+  let post_ap_id = PostForm::from_apub(&mut page, client, pool).await?.ap_id;
 
   let post = get_or_fetch_and_insert_remote_post(&post_ap_id, client, pool).await?;
 
@@ -997,7 +997,7 @@ async fn receive_remove_post(
     .unwrap()
     .to_string();
 
-  let page = remove
+  let mut page = remove
     .remove_props
     .get_object_base_box()
     .to_owned()
@@ -1009,7 +1009,7 @@ async fn receive_remove_post(
 
   insert_activity(mod_.id, remove, false, pool).await?;
 
-  let post_ap_id = PostForm::from_apub(&page, client, pool).await?.ap_id;
+  let post_ap_id = PostForm::from_apub(&mut page, client, pool).await?.ap_id;
 
   let post = get_or_fetch_and_insert_remote_post(&post_ap_id, client, pool).await?;
 
@@ -1063,7 +1063,7 @@ async fn receive_delete_comment(
     .unwrap()
     .to_string();
 
-  let note = delete
+  let mut note = delete
     .delete_props
     .get_object_base_box()
     .to_owned()
@@ -1075,7 +1075,7 @@ async fn receive_delete_comment(
 
   insert_activity(user.id, delete, false, pool).await?;
 
-  let comment_ap_id = CommentForm::from_apub(&note, client, pool).await?.ap_id;
+  let comment_ap_id = CommentForm::from_apub(&mut note, client, pool).await?.ap_id;
 
   let comment = get_or_fetch_and_insert_remote_comment(&comment_ap_id, client, pool).await?;
 
@@ -1131,7 +1131,7 @@ async fn receive_remove_comment(
     .unwrap()
     .to_string();
 
-  let note = remove
+  let mut note = remove
     .remove_props
     .get_object_base_box()
     .to_owned()
@@ -1143,7 +1143,7 @@ async fn receive_remove_comment(
 
   insert_activity(mod_.id, remove, false, pool).await?;
 
-  let comment_ap_id = CommentForm::from_apub(&note, client, pool).await?.ap_id;
+  let comment_ap_id = CommentForm::from_apub(&mut note, client, pool).await?.ap_id;
 
   let comment = get_or_fetch_and_insert_remote_comment(&comment_ap_id, client, pool).await?;
 
@@ -1259,7 +1259,7 @@ async fn receive_undo_delete_comment(
     .unwrap()
     .to_string();
 
-  let note = delete
+  let mut note = delete
     .delete_props
     .get_object_base_box()
     .to_owned()
@@ -1271,7 +1271,7 @@ async fn receive_undo_delete_comment(
 
   insert_activity(user.id, delete, false, pool).await?;
 
-  let comment_ap_id = CommentForm::from_apub(&note, client, pool).await?.ap_id;
+  let comment_ap_id = CommentForm::from_apub(&mut note, client, pool).await?.ap_id;
 
   let comment = get_or_fetch_and_insert_remote_comment(&comment_ap_id, client, pool).await?;
 
@@ -1327,7 +1327,7 @@ async fn receive_undo_remove_comment(
     .unwrap()
     .to_string();
 
-  let note = remove
+  let mut note = remove
     .remove_props
     .get_object_base_box()
     .to_owned()
@@ -1339,7 +1339,7 @@ async fn receive_undo_remove_comment(
 
   insert_activity(mod_.id, remove, false, pool).await?;
 
-  let comment_ap_id = CommentForm::from_apub(&note, client, pool).await?.ap_id;
+  let comment_ap_id = CommentForm::from_apub(&mut note, client, pool).await?.ap_id;
 
   let comment = get_or_fetch_and_insert_remote_comment(&comment_ap_id, client, pool).await?;
 
@@ -1395,7 +1395,7 @@ async fn receive_undo_delete_post(
     .unwrap()
     .to_string();
 
-  let page = delete
+  let mut page = delete
     .delete_props
     .get_object_base_box()
     .to_owned()
@@ -1407,7 +1407,7 @@ async fn receive_undo_delete_post(
 
   insert_activity(user.id, delete, false, pool).await?;
 
-  let post_ap_id = PostForm::from_apub(&page, client, pool).await?.ap_id;
+  let post_ap_id = PostForm::from_apub(&mut page, client, pool).await?.ap_id;
 
   let post = get_or_fetch_and_insert_remote_post(&post_ap_id, client, pool).await?;
 
@@ -1461,7 +1461,7 @@ async fn receive_undo_remove_post(
     .unwrap()
     .to_string();
 
-  let page = remove
+  let mut page = remove
     .remove_props
     .get_object_base_box()
     .to_owned()
@@ -1473,7 +1473,7 @@ async fn receive_undo_remove_post(
 
   insert_activity(mod_.id, remove, false, pool).await?;
 
-  let post_ap_id = PostForm::from_apub(&page, client, pool).await?.ap_id;
+  let post_ap_id = PostForm::from_apub(&mut page, client, pool).await?.ap_id;
 
   let post = get_or_fetch_and_insert_remote_post(&post_ap_id, client, pool).await?;
 
@@ -1527,7 +1527,7 @@ async fn receive_undo_delete_community(
     .unwrap()
     .to_string();
 
-  let group = delete
+  let mut group = delete
     .delete_props
     .get_object_base_box()
     .to_owned()
@@ -1539,7 +1539,7 @@ async fn receive_undo_delete_community(
 
   insert_activity(user.id, delete, false, pool).await?;
 
-  let community_actor_id = CommunityForm::from_apub(&group, client, pool)
+  let community_actor_id = CommunityForm::from_apub(&mut group, client, pool)
     .await?
     .actor_id;
 
@@ -1604,7 +1604,7 @@ async fn receive_undo_remove_community(
     .unwrap()
     .to_string();
 
-  let group = remove
+  let mut group = remove
     .remove_props
     .get_object_base_box()
     .to_owned()
@@ -1616,7 +1616,7 @@ async fn receive_undo_remove_community(
 
   insert_activity(mod_.id, remove, false, pool).await?;
 
-  let community_actor_id = CommunityForm::from_apub(&group, client, pool)
+  let community_actor_id = CommunityForm::from_apub(&mut group, client, pool)
     .await?
     .actor_id;
 
@@ -1704,7 +1704,7 @@ async fn receive_undo_like_comment(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let note = like
+  let mut note = like
     .like_props
     .get_object_base_box()
     .to_owned()
@@ -1718,7 +1718,7 @@ async fn receive_undo_like_comment(
 
   insert_activity(user.id, like, false, pool).await?;
 
-  let comment = CommentForm::from_apub(&note, client, pool).await?;
+  let comment = CommentForm::from_apub(&mut note, client, pool).await?;
 
   let comment_id = get_or_fetch_and_insert_remote_comment(&comment.ap_id, client, pool)
     .await?
@@ -1758,7 +1758,7 @@ async fn receive_undo_like_post(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let page = like
+  let mut page = like
     .like_props
     .get_object_base_box()
     .to_owned()
@@ -1772,7 +1772,7 @@ async fn receive_undo_like_post(
 
   insert_activity(user.id, like, false, pool).await?;
 
-  let post = PostForm::from_apub(&page, client, pool).await?;
+  let post = PostForm::from_apub(&mut page, client, pool).await?;
 
   let post_id = get_or_fetch_and_insert_remote_post(&post.ap_id, client, pool)
     .await?
diff --git a/server/src/apub/user.rs b/server/src/apub/user.rs
index 51339ccf2..a3194355a 100644
--- a/server/src/apub/user.rs
+++ b/server/src/apub/user.rs
@@ -1,13 +1,5 @@
 use crate::{
-  apub::{
-    activities::send_activity,
-    create_apub_response,
-    extensions::signatures::PublicKey,
-    ActorType,
-    FromApub,
-    PersonExt,
-    ToApub,
-  },
+  apub::{activities::send_activity, create_apub_response, ActorType, FromApub, PersonExt, ToApub},
   blocking,
   convert_datetime,
   db::{
@@ -19,20 +11,17 @@ use crate::{
   DbPool,
   LemmyError,
 };
-use activitystreams::{
-  actor::{properties::ApActorProperties, Person},
-  context,
-  endpoint::EndpointProperties,
-  object::{properties::ObjectProperties, AnyImage, Image},
-  primitives::XsdAnyUri,
-};
-use activitystreams_ext::Ext2;
+use activitystreams_ext::Ext1;
 use activitystreams_new::{
   activity::{Follow, Undo},
-  object::Tombstone,
+  actor::{ApActor, Endpoints, Person},
+  context,
+  object::{Image, Tombstone},
   prelude::*,
+  primitives::{XsdAnyUri, XsdDateTime},
 };
 use actix_web::{body::Body, client::Client, web, HttpResponse};
+use failure::_core::str::FromStr;
 use serde::Deserialize;
 
 #[derive(Deserialize)]
@@ -47,46 +36,39 @@ impl ToApub for User_ {
   // Turn a Lemmy Community into an ActivityPub group that can be sent out over the network.
   async fn to_apub(&self, _pool: &DbPool) -> Result<PersonExt, LemmyError> {
     // TODO go through all these to_string and to_owned()
-    let mut person = Person::default();
-    let oprops: &mut ObjectProperties = person.as_mut();
-    oprops
-      .set_context_xsd_any_uri(context())?
-      .set_id(self.actor_id.to_string())?
-      .set_name_xsd_string(self.name.to_owned())?
-      .set_published(convert_datetime(self.published))?;
+    let mut person = Person::new();
+    person
+      .set_context(context())
+      .set_id(XsdAnyUri::from_str(&self.actor_id)?)
+      .set_name(self.name.to_owned())
+      .set_published(XsdDateTime::from(convert_datetime(self.published)));
 
     if let Some(u) = self.updated {
-      oprops.set_updated(convert_datetime(u))?;
-    }
-
-    if let Some(i) = &self.preferred_username {
-      oprops.set_name_xsd_string(i.to_owned())?;
+      person.set_updated(XsdDateTime::from(convert_datetime(u)));
     }
 
     if let Some(avatar_url) = &self.avatar {
       let mut image = Image::new();
-      image
-        .object_props
-        .set_url_xsd_any_uri(avatar_url.to_owned())?;
-      let any_image = AnyImage::from_concrete(image)?;
-      oprops.set_icon_any_image(any_image)?;
+      image.set_url(avatar_url.to_owned());
+      person.set_icon(image.into_any_base()?);
     }
 
-    let mut endpoint_props = EndpointProperties::default();
+    let mut ap_actor = ApActor::new(self.get_inbox_url().parse()?, person);
+    ap_actor
+      .set_outbox(self.get_outbox_url().parse()?)
+      .set_followers(self.get_followers_url().parse()?)
+      .set_following(self.get_following_url().parse()?)
+      .set_liked(self.get_liked_url().parse()?)
+      .set_endpoints(Endpoints {
+        shared_inbox: Some(self.get_shared_inbox_url().parse()?),
+        ..Default::default()
+      });
 
-    endpoint_props.set_shared_inbox(self.get_shared_inbox_url())?;
+    if let Some(i) = &self.preferred_username {
+      ap_actor.set_preferred_username(i.to_owned());
+    }
 
-    let mut actor_props = ApActorProperties::default();
-
-    actor_props
-      .set_inbox(self.get_inbox_url())?
-      .set_outbox(self.get_outbox_url())?
-      .set_endpoints(endpoint_props)?
-      .set_followers(self.get_followers_url())?
-      .set_following(self.get_following_url())?
-      .set_liked(self.get_liked_url())?;
-
-    Ok(Ext2::new(person, actor_props, self.get_public_key_ext()))
+    Ok(Ext1::new(ap_actor, self.get_public_key_ext()))
   }
   fn to_tombstone(&self) -> Result<Tombstone, LemmyError> {
     unimplemented!()
@@ -203,31 +185,33 @@ impl ActorType for User_ {
 impl FromApub for UserForm {
   type ApubType = PersonExt;
   /// Parse an ActivityPub person received from another instance into a Lemmy user.
-  async fn from_apub(person: &PersonExt, _: &Client, _: &DbPool) -> Result<Self, LemmyError> {
-    let oprops = &person.inner.object_props;
-    let aprops = &person.ext_one;
-    let public_key: &PublicKey = &person.ext_two.public_key;
-
-    let avatar = match oprops.get_icon_any_image() {
-      Some(any_image) => any_image
-        .to_owned()
-        .into_concrete::<Image>()?
-        .object_props
-        .get_url_xsd_any_uri()
+  async fn from_apub(person: &mut PersonExt, _: &Client, _: &DbPool) -> Result<Self, LemmyError> {
+    let avatar = match person.take_icon() {
+      Some(any_image) => Image::from_any_base(any_image.as_one().unwrap().clone())
+        .unwrap()
+        .unwrap()
+        .url
+        .unwrap()
+        .as_single_xsd_any_uri()
         .map(|u| u.to_string()),
       None => None,
     };
 
     Ok(UserForm {
-      name: oprops.get_name_xsd_string().unwrap().to_string(),
-      preferred_username: aprops.get_preferred_username().map(|u| u.to_string()),
+      name: person
+        .take_name()
+        .unwrap()
+        .as_single_xsd_string()
+        .unwrap()
+        .into(),
+      preferred_username: person.inner.take_preferred_username(),
       password_encrypted: "".to_string(),
       admin: false,
       banned: false,
       email: None,
       avatar,
-      updated: oprops
-        .get_updated()
+      updated: person
+        .take_updated()
         .map(|u| u.as_ref().to_owned().naive_local()),
       show_nsfw: false,
       theme: "".to_string(),
@@ -237,11 +221,13 @@ impl FromApub for UserForm {
       show_avatars: false,
       send_notifications_to_email: false,
       matrix_user_id: None,
-      actor_id: oprops.get_id().unwrap().to_string(),
-      bio: oprops.get_summary_xsd_string().map(|s| s.to_string()),
+      actor_id: person.id().unwrap().to_string(),
+      bio: person
+        .take_summary()
+        .map(|s| s.as_single_xsd_string().unwrap().into()),
       local: false,
       private_key: None,
-      public_key: Some(public_key.to_owned().public_key_pem),
+      public_key: Some(person.ext_one.public_key.to_owned().public_key_pem),
       last_refreshed_at: Some(naive_now()),
     })
   }
diff --git a/server/src/apub/user_inbox.rs b/server/src/apub/user_inbox.rs
index c63178e72..80280adeb 100644
--- a/server/src/apub/user_inbox.rs
+++ b/server/src/apub/user_inbox.rs
@@ -116,7 +116,7 @@ async fn receive_create_private_message(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let note = create
+  let mut note = create
     .create_props
     .get_object_base_box()
     .to_owned()
@@ -135,7 +135,7 @@ async fn receive_create_private_message(
 
   insert_activity(user.id, create, false, pool).await?;
 
-  let private_message = PrivateMessageForm::from_apub(&note, client, pool).await?;
+  let private_message = PrivateMessageForm::from_apub(&mut note, client, pool).await?;
 
   let inserted_private_message = blocking(pool, move |conn| {
     PrivateMessage::create(conn, &private_message)
@@ -168,7 +168,7 @@ async fn receive_update_private_message(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let note = update
+  let mut note = update
     .update_props
     .get_object_base_box()
     .to_owned()
@@ -187,7 +187,7 @@ async fn receive_update_private_message(
 
   insert_activity(user.id, update, false, pool).await?;
 
-  let private_message_form = PrivateMessageForm::from_apub(&note, client, pool).await?;
+  let private_message_form = PrivateMessageForm::from_apub(&mut note, client, pool).await?;
 
   let private_message_ap_id = private_message_form.ap_id.clone();
   let private_message = blocking(pool, move |conn| {
@@ -228,7 +228,7 @@ async fn receive_delete_private_message(
   pool: &DbPool,
   chat_server: ChatServerParam,
 ) -> Result<HttpResponse, LemmyError> {
-  let note = delete
+  let mut note = delete
     .delete_props
     .get_object_base_box()
     .to_owned()
@@ -247,7 +247,7 @@ async fn receive_delete_private_message(
 
   insert_activity(user.id, delete, false, pool).await?;
 
-  let private_message_form = PrivateMessageForm::from_apub(&note, client, pool).await?;
+  let private_message_form = PrivateMessageForm::from_apub(&mut note, client, pool).await?;
 
   let private_message_ap_id = private_message_form.ap_id;
   let private_message = blocking(pool, move |conn| {
@@ -308,7 +308,7 @@ async fn receive_undo_delete_private_message(
     .to_owned()
     .into_concrete::<Delete>()?;
 
-  let note = delete
+  let mut note = delete
     .delete_props
     .get_object_base_box()
     .to_owned()
@@ -327,7 +327,7 @@ async fn receive_undo_delete_private_message(
 
   insert_activity(user.id, delete, false, pool).await?;
 
-  let private_message = PrivateMessageForm::from_apub(&note, client, pool).await?;
+  let private_message = PrivateMessageForm::from_apub(&mut note, client, pool).await?;
 
   let private_message_ap_id = private_message.ap_id.clone();
   let private_message_id = blocking(pool, move |conn| {