Merge branch 'develop' into feature/fast_sanitize

README.md

@@ -25,7 +25,7 @@ While we don’t provide docker files, other people have written very good ones.
 
 ### Dependencies
 
-* Postgresql version 9.6 or newer
+* Postgresql version 9.6 or newer, including the contrib modules
 * Elixir version 1.7 or newer. If your distribution only has an old version available, check [Elixir’s install page](https://elixir-lang.org/install.html) or use a tool like [asdf](https://github.com/asdf-vm/asdf).
 * Build-essential tools
 

benchmarks/load_testing/fetcher.ex

@@ -39,10 +39,12 @@ def query_timelines(user) do
       "muting_user" => user
     }
 
+    following = User.following(user)
+
     Benchee.run(%{
       "User home timeline" => fn ->
         Pleroma.Web.ActivityPub.ActivityPub.fetch_activities(
-          [user.ap_id | user.following],
+          following,
           home_timeline_params
         )
       end,
@@ -60,7 +62,7 @@ def query_timelines(user) do
 
     home_activities =
       Pleroma.Web.ActivityPub.ActivityPub.fetch_activities(
-        [user.ap_id | user.following],
+        following,
         home_timeline_params
       )
 

benchmarks/load_testing/generator.ex

@@ -45,15 +45,13 @@ defp generate_user_data(i) do
         %{
           ap_id: ap_id,
           follower_address: ap_id <> "/followers",
-          following_address: ap_id <> "/following",
+          following_address: ap_id <> "/following"
-          following: [ap_id]
         }
       else
         %{
           ap_id: User.ap_id(user),
           follower_address: User.ap_followers(user),
-          following_address: User.ap_following(user),
+          following_address: User.ap_following(user)
-          following: [User.ap_id(user)]
         }
       end
 

lib/mix/tasks/pleroma/database.ex

@@ -52,9 +52,9 @@ def run(["bump_all_conversations"]) do
   def run(["update_users_following_followers_counts"]) do
     start_pleroma()
 
-    users = Repo.all(User)
+    User
-    Enum.each(users, &User.remove_duplicated_following/1)
+    |> Repo.all()
-    Enum.each(users, &User.update_follower_count/1)
+    |> Enum.each(&User.update_follower_count/1)
   end
 
   def run(["prune_objects" | args]) do

lib/mix/tasks/pleroma/user.ex

@@ -163,7 +163,7 @@ def run(["unsubscribe", nickname]) do
 
       user = User.get_cached_by_id(user.id)
 
-      if Enum.empty?(user.following) do
+      if Enum.empty?(User.get_friends(user)) do
         shell_info("Successfully unsubscribed all followers from #{user.nickname}")
       end
     else

lib/pleroma/bbs/handler.ex

@@ -98,7 +98,7 @@ def handle_command(state, "home") do
       |> Map.put("user", user)
 
     activities =
-      [user.ap_id | user.following]
+      [user.ap_id | Pleroma.User.following(user)]
       |> ActivityPub.fetch_activities(params)
 
     Enum.each(activities, fn activity ->

lib/pleroma/following_relationship.ex

@@ -0,0 +1,110 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.FollowingRelationship do
+  use Ecto.Schema
+
+  import Ecto.Changeset
+  import Ecto.Query
+
+  alias FlakeId.Ecto.CompatType
+  alias Pleroma.Repo
+  alias Pleroma.User
+
+  schema "following_relationships" do
+    field(:state, :string, default: "accept")
+
+    belongs_to(:follower, User, type: CompatType)
+    belongs_to(:following, User, type: CompatType)
+
+    timestamps()
+  end
+
+  def changeset(%__MODULE__{} = following_relationship, attrs) do
+    following_relationship
+    |> cast(attrs, [:state])
+    |> put_assoc(:follower, attrs.follower)
+    |> put_assoc(:following, attrs.following)
+    |> validate_required([:state, :follower, :following])
+  end
+
+  def get(%User{} = follower, %User{} = following) do
+    __MODULE__
+    |> where(follower_id: ^follower.id, following_id: ^following.id)
+    |> Repo.one()
+  end
+
+  def update(follower, following, "reject"), do: unfollow(follower, following)
+
+  def update(%User{} = follower, %User{} = following, state) do
+    case get(follower, following) do
+      nil ->
+        follow(follower, following, state)
+
+      following_relationship ->
+        following_relationship
+        |> cast(%{state: state}, [:state])
+        |> validate_required([:state])
+        |> Repo.update()
+    end
+  end
+
+  def follow(%User{} = follower, %User{} = following, state \\ "accept") do
+    %__MODULE__{}
+    |> changeset(%{follower: follower, following: following, state: state})
+    |> Repo.insert(on_conflict: :nothing)
+  end
+
+  def unfollow(%User{} = follower, %User{} = following) do
+    case get(follower, following) do
+      nil -> {:ok, nil}
+      %__MODULE__{} = following_relationship -> Repo.delete(following_relationship)
+    end
+  end
+
+  def follower_count(%User{} = user) do
+    %{followers: user, deactivated: false}
+    |> User.Query.build()
+    |> Repo.aggregate(:count, :id)
+  end
+
+  def following_count(%User{id: nil}), do: 0
+
+  def following_count(%User{} = user) do
+    %{friends: user, deactivated: false}
+    |> User.Query.build()
+    |> Repo.aggregate(:count, :id)
+  end
+
+  def get_follow_requests(%User{id: id}) do
+    __MODULE__
+    |> join(:inner, [r], f in assoc(r, :follower))
+    |> where([r], r.state == "pending")
+    |> where([r], r.following_id == ^id)
+    |> select([r, f], f)
+    |> Repo.all()
+  end
+
+  def following?(%User{id: follower_id}, %User{id: followed_id}) do
+    __MODULE__
+    |> where(follower_id: ^follower_id, following_id: ^followed_id, state: "accept")
+    |> Repo.exists?()
+  end
+
+  def following(%User{} = user) do
+    following =
+      __MODULE__
+      |> join(:inner, [r], u in User, on: r.following_id == u.id)
+      |> where([r], r.follower_id == ^user.id)
+      |> where([r], r.state == "accept")
+      |> select([r, u], u.follower_address)
+      |> Repo.all()
+
+    if not user.local or user.nickname in [nil, "internal.fetch"] do
+      following
+    else
+      [user.follower_address | following]
+    end
+  end
+end

lib/pleroma/user.ex

@@ -13,6 +13,7 @@ defmodule Pleroma.User do
   alias Pleroma.Activity
   alias Pleroma.Conversation.Participation
   alias Pleroma.Delivery
+  alias Pleroma.FollowingRelationship
   alias Pleroma.Keys
   alias Pleroma.Notification
   alias Pleroma.Object
@@ -50,7 +51,6 @@ defmodule Pleroma.User do
     field(:password, :string, virtual: true)
     field(:password_confirmation, :string, virtual: true)
     field(:keys, :string)
-    field(:following, {:array, :string}, default: [])
     field(:ap_id, :string)
     field(:avatar, :map)
     field(:local, :boolean, default: true)
@@ -216,13 +216,7 @@ def restrict_deactivated(query) do
     from(u in query, where: u.deactivated != ^true)
   end
 
-  def following_count(%User{following: []}), do: 0
+  defdelegate following_count(user), to: FollowingRelationship
-
-  def following_count(%User{} = user) do
-    user
-    |> get_friends_query()
-    |> Repo.aggregate(:count, :id)
-  end
 
   defp truncate_fields_param(params) do
     if Map.has_key?(params, :fields) do
@@ -309,7 +303,6 @@ def update_changeset(struct, params \\ %{}) do
         :bio,
         :name,
         :avatar,
-        :following,
         :locked,
         :no_rich_text,
         :default_scope,
@@ -454,7 +447,6 @@ defp put_following_and_follower_address(changeset) do
     followers = ap_followers(%User{nickname: get_field(changeset, :nickname)})
 
     changeset
-    |> put_change(:following, [followers])
     |> put_change(:follower_address, followers)
   end
 
@@ -508,8 +500,8 @@ def needs_update?(%User{local: false} = user) do
   def needs_update?(_), do: true
 
   @spec maybe_direct_follow(User.t(), User.t()) :: {:ok, User.t()} | {:error, String.t()}
-  def maybe_direct_follow(%User{} = follower, %User{local: true, locked: true}) do
+  def maybe_direct_follow(%User{} = follower, %User{local: true, locked: true} = followed) do
-    {:ok, follower}
+    follow(follower, followed, "pending")
   end
 
   def maybe_direct_follow(%User{} = follower, %User{local: true} = followed) do
@@ -527,37 +519,22 @@ def maybe_direct_follow(%User{} = follower, %User{} = followed) do
   @doc "A mass follow for local users. Respects blocks in both directions but does not create activities."
   @spec follow_all(User.t(), list(User.t())) :: {atom(), User.t()}
   def follow_all(follower, followeds) do
-    followed_addresses =
+    followeds =
-      followeds
+      Enum.reject(followeds, fn followed ->
-      |> Enum.reject(fn followed -> blocks?(follower, followed) || blocks?(followed, follower) end)
+        blocks?(follower, followed) || blocks?(followed, follower)
-      |> Enum.map(fn %{follower_address: fa} -> fa end)
+      end)
 
-    q =
+    Enum.each(followeds, &follow(follower, &1, "accept"))
-      from(u in User,
-        where: u.id == ^follower.id,
-        update: [
-          set: [
-            following:
-              fragment(
-                "array(select distinct unnest (array_cat(?, ?)))",
-                u.following,
-                ^followed_addresses
-              )
-          ]
-        ],
-        select: u
-      )
-
-    {1, [follower]} = Repo.update_all(q, [])
 
     Enum.each(followeds, &update_follower_count/1)
 
     set_cache(follower)
   end
 
-  def follow(%User{} = follower, %User{} = followed) do
+  defdelegate following(user), to: FollowingRelationship
+
+  def follow(%User{} = follower, %User{} = followed, state \\ "accept") do
     deny_follow_blocked = Pleroma.Config.get([:user, :deny_follow_blocked])
-    ap_followers = followed.follower_address
 
     cond do
       followed.deactivated ->
@@ -567,14 +544,7 @@ def follow(%User{} = follower, %User{} = followed) do
         {:error, "Could not follow user: #{followed.nickname} blocked you."}
 
       true ->
-        q =
+        FollowingRelationship.follow(follower, followed, state)
-          from(u in User,
-            where: u.id == ^follower.id,
-            update: [push: [following: ^ap_followers]],
-            select: u
-          )
-
-        {1, [follower]} = Repo.update_all(q, [])
 
         follower = maybe_update_following_count(follower)
 
@@ -585,17 +555,8 @@ def follow(%User{} = follower, %User{} = followed) do
   end
 
   def unfollow(%User{} = follower, %User{} = followed) do
-    ap_followers = followed.follower_address
-
     if following?(follower, followed) and follower.ap_id != followed.ap_id do
-      q =
+      FollowingRelationship.unfollow(follower, followed)
-        from(u in User,
-          where: u.id == ^follower.id,
-          update: [pull: [following: ^ap_followers]],
-          select: u
-        )
-
-      {1, [follower]} = Repo.update_all(q, [])
 
       follower = maybe_update_following_count(follower)
 
@@ -609,10 +570,7 @@ def unfollow(%User{} = follower, %User{} = followed) do
     end
   end
 
-  @spec following?(User.t(), User.t()) :: boolean
+  defdelegate following?(follower, followed), to: FollowingRelationship
-  def following?(%User{} = follower, %User{} = followed) do
-    Enum.member?(follower.following, followed.follower_address)
-  end
 
   def locked?(%User{} = user) do
     user.locked || false
@@ -834,16 +792,7 @@ def get_friends_ids(user, page \\ nil) do
     |> Repo.all()
   end
 
-  @spec get_follow_requests(User.t()) :: {:ok, [User.t()]}
+  defdelegate get_follow_requests(user), to: FollowingRelationship
-  def get_follow_requests(%User{} = user) do
-    user
-    |> Activity.follow_requests_for_actor()
-    |> join(:inner, [a], u in User, on: a.actor == u.ap_id)
-    |> where([a, u], not fragment("? @> ?", u.following, ^[user.follower_address]))
-    |> group_by([a, u], u.id)
-    |> select([a, u], u)
-    |> Repo.all()
-  end
 
   def increase_note_count(%User{} = user) do
     User
@@ -995,18 +944,6 @@ def increment_unread_conversation_count(conversation, %User{local: true} = user)
 
   def increment_unread_conversation_count(_, user), do: {:ok, user}
 
-  def remove_duplicated_following(%User{following: following} = user) do
-    uniq_following = Enum.uniq(following)
-
-    if length(following) == length(uniq_following) do
-      {:ok, user}
-    else
-      user
-      |> update_changeset(%{following: uniq_following})
-      |> update_and_set_cache()
-    end
-  end
-
   @spec get_users_from_set([String.t()], boolean()) :: [User.t()]
   def get_users_from_set(ap_ids, local_only \\ true) do
     criteria = %{ap_id: ap_ids, deactivated: false}

lib/pleroma/user/query.ex

@@ -28,6 +28,8 @@ defmodule Pleroma.User.Query do
   """
   import Ecto.Query
   import Pleroma.Web.AdminAPI.Search, only: [not_empty_string: 1]
+
+  alias Pleroma.FollowingRelationship
   alias Pleroma.User
 
   @type criteria ::
@@ -139,18 +141,40 @@ defp compose_query({:deactivated, true}, query) do
     |> where([u], not is_nil(u.nickname))
   end
 
-  defp compose_query({:followers, %User{id: id, follower_address: follower_address}}, query) do
+  defp compose_query({:followers, %User{id: id}}, query) do
-    where(query, [u], fragment("? <@ ?", ^[follower_address], u.following))
+    query
     |> where([u], u.id != ^id)
+    |> join(:inner, [u], r in FollowingRelationship,
+      as: :relationships,
+      on: r.following_id == ^id and r.follower_id == u.id
+    )
+    |> where([relationships: r], r.state == "accept")
   end
 
-  defp compose_query({:friends, %User{id: id, following: following}}, query) do
+  defp compose_query({:friends, %User{id: id}}, query) do
-    where(query, [u], u.follower_address in ^following)
+    query
     |> where([u], u.id != ^id)
+    |> join(:inner, [u], r in FollowingRelationship,
+      as: :relationships,
+      on: r.following_id == u.id and r.follower_id == ^id
+    )
+    |> where([relationships: r], r.state == "accept")
   end
 
   defp compose_query({:recipients_from_activity, to}, query) do
-    where(query, [u], u.ap_id in ^to or fragment("? && ?", u.following, ^to))
+    query
+    |> join(:left, [u], r in FollowingRelationship,
+      as: :relationships,
+      on: r.follower_id == u.id
+    )
+    |> join(:left, [relationships: r], f in User,
+      as: :following,
+      on: f.id == r.following_id
+    )
+    |> where(
+      [u, following: f, relationships: r],
+      u.ap_id in ^to or (f.follower_address in ^to and r.state == "accept")
+    )
   end
 
   defp compose_query({:order_by, key}, query) do

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -518,7 +518,9 @@ defp fetch_activities_for_context_query(context, opts) do
     public = [Pleroma.Constants.as_public()]
 
     recipients =
-      if opts["user"], do: [opts["user"].ap_id | opts["user"].following] ++ public, else: public
+      if opts["user"],
+        do: [opts["user"].ap_id | User.following(opts["user"])] ++ public,
+        else: public
 
     from(activity in Activity)
     |> maybe_preload_objects(opts)
@@ -712,7 +714,7 @@ defp user_activities_recipients(%{"godmode" => true}) do
 
   defp user_activities_recipients(%{"reading_user" => reading_user}) do
     if reading_user do
-      [Pleroma.Constants.as_public()] ++ [reading_user.ap_id | reading_user.following]
+      [Pleroma.Constants.as_public()] ++ [reading_user.ap_id | User.following(reading_user)]
     else
       [Pleroma.Constants.as_public()]
     end

lib/pleroma/web/activity_pub/activity_pub_controller.ex

@@ -319,12 +319,12 @@ def read_inbox(
       when page? in [true, "true"] do
     activities =
       if params["max_id"] do
-        ActivityPub.fetch_activities([user.ap_id | user.following], %{
+        ActivityPub.fetch_activities([user.ap_id | User.following(user)], %{
           "max_id" => params["max_id"],
           "limit" => 10
         })
       else
-        ActivityPub.fetch_activities([user.ap_id | user.following], %{"limit" => 10})
+        ActivityPub.fetch_activities([user.ap_id | User.following(user)], %{"limit" => 10})
       end
 
     conn

lib/pleroma/web/activity_pub/relay.ex

@@ -57,9 +57,10 @@ def publish(_), do: {:error, "Not implemented"}
 
   @spec list() :: {:ok, [String.t()]} | {:error, any()}
   def list do
-    with %User{following: following} = _user <- get_actor() do
+    with %User{} = user <- get_actor() do
       list =
-        following
+        user
+        |> User.following()
         |> Enum.map(fn entry -> URI.parse(entry).host end)
         |> Enum.uniq()
 

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -7,6 +7,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   A module to handle coding from internal to wire ActivityPub and back.
   """
   alias Pleroma.Activity
+  alias Pleroma.FollowingRelationship
   alias Pleroma.Object
   alias Pleroma.Object.Containment
   alias Pleroma.Repo
@@ -474,7 +475,8 @@ def handle_incoming(
            {_, false} <- {:user_locked, User.locked?(followed)},
            {_, {:ok, follower}} <- {:follow, User.follow(follower, followed)},
            {_, {:ok, _}} <-
-             {:follow_state_update, Utils.update_follow_state_for_all(activity, "accept")} do
+             {:follow_state_update, Utils.update_follow_state_for_all(activity, "accept")},
+           {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "accept") do
         ActivityPub.accept(%{
           to: [follower.ap_id],
           actor: followed,
@@ -484,6 +486,7 @@ def handle_incoming(
       else
         {:user_blocked, true} ->
           {:ok, _} = Utils.update_follow_state_for_all(activity, "reject")
+          {:ok, _relationship} = FollowingRelationship.update(follower, followed, "reject")
 
           ActivityPub.reject(%{
             to: [follower.ap_id],
@@ -494,6 +497,7 @@ def handle_incoming(
 
         {:follow, {:error, _}} ->
           {:ok, _} = Utils.update_follow_state_for_all(activity, "reject")
+          {:ok, _relationship} = FollowingRelationship.update(follower, followed, "reject")
 
           ActivityPub.reject(%{
             to: [follower.ap_id],
@@ -503,6 +507,7 @@ def handle_incoming(
           })
 
         {:user_locked, true} ->
+          {:ok, _relationship} = FollowingRelationship.update(follower, followed, "pending")
           :noop
       end
 
@@ -522,7 +527,7 @@ def handle_incoming(
          {:ok, follow_activity} <- get_follow_activity(follow_object, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"),
          %User{local: true} = follower <- User.get_cached_by_ap_id(follow_activity.data["actor"]),
-         {:ok, _follower} = User.follow(follower, followed) do
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "accept") do
       ActivityPub.accept(%{
         to: follow_activity.data["to"],
         type: "Accept",
@@ -545,6 +550,7 @@ def handle_incoming(
          {:ok, follow_activity} <- get_follow_activity(follow_object, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject"),
          %User{local: true} = follower <- User.get_cached_by_ap_id(follow_activity.data["actor"]),
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "reject"),
          {:ok, activity} <-
            ActivityPub.reject(%{
              to: follow_activity.data["to"],
@@ -554,8 +560,6 @@ def handle_incoming(
              local: false,
              activity_id: id
            }) do
-      User.unfollow(follower, followed)
-
       {:ok, activity}
     else
       _e -> :error
@@ -1061,26 +1065,6 @@ def perform(:user_upgrade, user) do
     # we pass a fake user so that the followers collection is stripped away
     old_follower_address = User.ap_followers(%User{nickname: user.nickname})
 
-    q =
-      from(
-        u in User,
-        where: ^old_follower_address in u.following,
-        update: [
-          set: [
-            following:
-              fragment(
-                "array_replace(?,?,?)",
-                u.following,
-                ^old_follower_address,
-                ^user.follower_address
-              )
-          ]
-        ]
-      )
-
-    Repo.update_all(q, [])
-
-    q =
     from(
       a in Activity,
       where: ^old_follower_address in a.recipients,
@@ -1096,8 +1080,7 @@ def perform(:user_upgrade, user) do
         ]
       ]
     )
-
+    |> Repo.update_all([])
-    Repo.update_all(q, [])
   end
 
   def upgrade_user_from_ap_id(ap_id) do

lib/pleroma/web/activity_pub/visibility.ex

@@ -59,7 +59,7 @@ def visible_for_user?(activity, nil) do
   end
 
   def visible_for_user?(activity, user) do
-    x = [user.ap_id | user.following]
+    x = [user.ap_id | User.following(user)]
     y = [activity.actor] ++ activity.data["to"] ++ (activity.data["cc"] || [])
     visible_for_user?(activity, nil) || Enum.any?(x, &(&1 in y))
   end

lib/pleroma/web/common_api/common_api.ex

@@ -6,6 +6,7 @@ defmodule Pleroma.Web.CommonAPI do
   alias Pleroma.Activity
   alias Pleroma.ActivityExpiration
   alias Pleroma.Conversation.Participation
+  alias Pleroma.FollowingRelationship
   alias Pleroma.Object
   alias Pleroma.ThreadMute
   alias Pleroma.User
@@ -40,6 +41,7 @@ def accept_follow_request(follower, followed) do
     with {:ok, follower} <- User.follow(follower, followed),
          %Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"),
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "accept"),
          {:ok, _activity} <-
            ActivityPub.accept(%{
              to: [follower.ap_id],
@@ -54,6 +56,7 @@ def accept_follow_request(follower, followed) do
   def reject_follow_request(follower, followed) do
     with %Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject"),
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "reject"),
          {:ok, _activity} <-
            ActivityPub.reject(%{
              to: [follower.ap_id],

lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex

@@ -10,6 +10,7 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
 
   alias Pleroma.Pagination
   alias Pleroma.Plugs.OAuthScopesPlug
+  alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
 
   plug(OAuthScopesPlug, %{scopes: ["read:statuses"]} when action in [:home, :direct])
@@ -28,7 +29,7 @@ def home(%{assigns: %{user: user}} = conn, params) do
       |> Map.put("muting_user", user)
       |> Map.put("user", user)
 
-    recipients = [user.ap_id | user.following]
+    recipients = [user.ap_id | User.following(user)]
 
     activities =
       recipients
@@ -128,9 +129,12 @@ def list(%{assigns: %{user: user}} = conn, %{"list_id" => id} = params) do
 
       # we must filter the following list for the user to avoid leaking statuses the user
       # does not actually have permission to see (for more info, peruse security issue #270).
+
+      user_following = User.following(user)
+
       activities =
         following
-        |> Enum.filter(fn x -> x in user.following end)
+        |> Enum.filter(fn x -> x in user_following end)
         |> ActivityPub.fetch_activities_bounded(following, params)
         |> Enum.reverse()
 

lib/pleroma/web/pleroma_api/controllers/account_controller.ex

@@ -126,7 +126,7 @@ def favourites(%{assigns: %{user: for_user, account: user}} = conn, params) do
 
     recipients =
       if for_user do
-        [Pleroma.Constants.as_public()] ++ [for_user.ap_id | for_user.following]
+        [Pleroma.Constants.as_public()] ++ [for_user.ap_id | User.following(for_user)]
       else
         [Pleroma.Constants.as_public()]
       end

priv/repo/migrations/20191007073319_create_following_relationships.exs

@@ -0,0 +1,149 @@
+defmodule Pleroma.Repo.Migrations.CreateFollowingRelationships do
+  use Ecto.Migration
+
+  def change do
+    create_if_not_exists table(:following_relationships) do
+      add(:follower_id, references(:users, type: :uuid, on_delete: :delete_all), null: false)
+      add(:following_id, references(:users, type: :uuid, on_delete: :delete_all), null: false)
+      add(:state, :string, null: false)
+
+      timestamps()
+    end
+
+    create_if_not_exists(index(:following_relationships, :follower_id))
+    create_if_not_exists(unique_index(:following_relationships, [:follower_id, :following_id]))
+
+    execute(update_thread_visibility(), restore_thread_visibility())
+  end
+
+  # The only difference between the original version: `actor_user` replaced with `actor_user_following`
+  def update_thread_visibility do
+    """
+    CREATE OR REPLACE FUNCTION thread_visibility(actor varchar, activity_id varchar) RETURNS boolean AS $$
+    DECLARE
+      public varchar := 'https://www.w3.org/ns/activitystreams#Public';
+      child objects%ROWTYPE;
+      activity activities%ROWTYPE;
+      author_fa varchar;
+      valid_recipients varchar[];
+      actor_user_following varchar[];
+    BEGIN
+      --- Fetch actor following
+      SELECT array_agg(following.follower_address) INTO actor_user_following FROM following_relationships
+      JOIN users ON users.id = following_relationships.follower_id
+      JOIN users AS following ON following.id = following_relationships.following_id
+      WHERE users.ap_id = actor;
+
+      --- Fetch our initial activity.
+      SELECT * INTO activity FROM activities WHERE activities.data->>'id' = activity_id;
+
+      LOOP
+        --- Ensure that we have an activity before continuing.
+        --- If we don't, the thread is not satisfiable.
+        IF activity IS NULL THEN
+          RETURN false;
+        END IF;
+
+        --- We only care about Create activities.
+        IF activity.data->>'type' != 'Create' THEN
+          RETURN true;
+        END IF;
+
+        --- Normalize the child object into child.
+        SELECT * INTO child FROM objects
+        INNER JOIN activities ON COALESCE(activities.data->'object'->>'id', activities.data->>'object') = objects.data->>'id'
+        WHERE COALESCE(activity.data->'object'->>'id', activity.data->>'object') = objects.data->>'id';
+
+        --- Fetch the author's AS2 following collection.
+        SELECT COALESCE(users.follower_address, '') INTO author_fa FROM users WHERE users.ap_id = activity.actor;
+
+        --- Prepare valid recipients array.
+        valid_recipients := ARRAY[actor, public];
+        IF ARRAY[author_fa] && actor_user_following THEN
+          valid_recipients := valid_recipients || author_fa;
+        END IF;
+
+        --- Check visibility.
+        IF NOT valid_recipients && activity.recipients THEN
+          --- activity not visible, break out of the loop
+          RETURN false;
+        END IF;
+
+        --- If there's a parent, load it and do this all over again.
+        IF (child.data->'inReplyTo' IS NOT NULL) AND (child.data->'inReplyTo' != 'null'::jsonb) THEN
+          SELECT * INTO activity FROM activities
+          INNER JOIN objects ON COALESCE(activities.data->'object'->>'id', activities.data->>'object') = objects.data->>'id'
+          WHERE child.data->>'inReplyTo' = objects.data->>'id';
+        ELSE
+          RETURN true;
+        END IF;
+      END LOOP;
+    END;
+    $$ LANGUAGE plpgsql IMMUTABLE;
+    """
+  end
+
+  # priv/repo/migrations/20190515222404_add_thread_visibility_function.exs
+  def restore_thread_visibility do
+    """
+    CREATE OR REPLACE FUNCTION thread_visibility(actor varchar, activity_id varchar) RETURNS boolean AS $$
+    DECLARE
+      public varchar := 'https://www.w3.org/ns/activitystreams#Public';
+      child objects%ROWTYPE;
+      activity activities%ROWTYPE;
+      actor_user users%ROWTYPE;
+      author_fa varchar;
+      valid_recipients varchar[];
+    BEGIN
+      --- Fetch our actor.
+      SELECT * INTO actor_user FROM users WHERE users.ap_id = actor;
+
+      --- Fetch our initial activity.
+      SELECT * INTO activity FROM activities WHERE activities.data->>'id' = activity_id;
+
+      LOOP
+        --- Ensure that we have an activity before continuing.
+        --- If we don't, the thread is not satisfiable.
+        IF activity IS NULL THEN
+          RETURN false;
+        END IF;
+
+        --- We only care about Create activities.
+        IF activity.data->>'type' != 'Create' THEN
+          RETURN true;
+        END IF;
+
+        --- Normalize the child object into child.
+        SELECT * INTO child FROM objects
+        INNER JOIN activities ON COALESCE(activities.data->'object'->>'id', activities.data->>'object') = objects.data->>'id'
+        WHERE COALESCE(activity.data->'object'->>'id', activity.data->>'object') = objects.data->>'id';
+
+        --- Fetch the author's AS2 following collection.
+        SELECT COALESCE(users.follower_address, '') INTO author_fa FROM users WHERE users.ap_id = activity.actor;
+
+        --- Prepare valid recipients array.
+        valid_recipients := ARRAY[actor, public];
+        IF ARRAY[author_fa] && actor_user.following THEN
+          valid_recipients := valid_recipients || author_fa;
+        END IF;
+
+        --- Check visibility.
+        IF NOT valid_recipients && activity.recipients THEN
+          --- activity not visible, break out of the loop
+          RETURN false;
+        END IF;
+
+        --- If there's a parent, load it and do this all over again.
+        IF (child.data->'inReplyTo' IS NOT NULL) AND (child.data->'inReplyTo' != 'null'::jsonb) THEN
+          SELECT * INTO activity FROM activities
+          INNER JOIN objects ON COALESCE(activities.data->'object'->>'id', activities.data->>'object') = objects.data->>'id'
+          WHERE child.data->>'inReplyTo' = objects.data->>'id';
+        ELSE
+          RETURN true;
+        END IF;
+      END LOOP;
+    END;
+    $$ LANGUAGE plpgsql IMMUTABLE;
+    """
+  end
+end

priv/repo/migrations/20191008132217_migrate_following_relationships.exs

@@ -0,0 +1,89 @@
+defmodule Pleroma.Repo.Migrations.MigrateFollowingRelationships do
+  use Ecto.Migration
+
+  def change do
+    execute(import_following_from_users(), "")
+    execute(import_following_from_activities(), restore_following_column())
+  end
+
+  defp import_following_from_users do
+    """
+    INSERT INTO following_relationships (follower_id, following_id, state, inserted_at, updated_at)
+    SELECT
+        relations.follower_id,
+        following.id,
+        'accept',
+        now(),
+        now()
+    FROM (
+        SELECT
+            users.id AS follower_id,
+            unnest(users.following) AS following_ap_id
+        FROM
+            users
+        WHERE
+            users.following != '{}'
+            AND users.local = false OR users.local = true AND users.email IS NOT NULL -- Exclude `internal/fetch` and `relay`
+    ) AS relations
+        JOIN users AS "following" ON "following".follower_address = relations.following_ap_id
+
+        WHERE relations.follower_id != following.id
+    ON CONFLICT DO NOTHING
+    """
+  end
+
+  defp import_following_from_activities do
+    """
+    INSERT INTO
+        following_relationships (
+            follower_id,
+            following_id,
+            state,
+            inserted_at,
+            updated_at
+        )
+    SELECT
+        followers.id,
+        following.id,
+        activities.data ->> 'state',
+        (activities.data ->> 'published') :: timestamp,
+        now()
+    FROM
+        activities
+        JOIN users AS followers ON (activities.actor = followers.ap_id)
+        JOIN users AS following ON (activities.data ->> 'object' = following.ap_id)
+    WHERE
+        activities.data ->> 'type' = 'Follow'
+        AND activities.data ->> 'state' IN ('accept', 'pending', 'reject')
+    ORDER BY activities.updated_at DESC
+    ON CONFLICT DO NOTHING
+    """
+  end
+
+  defp restore_following_column do
+    """
+    UPDATE
+        users
+    SET
+        following = following_query.following_array,
+        updated_at = now()
+    FROM (
+        SELECT
+            follower.id AS follower_id,
+            CASE follower.local
+            WHEN TRUE THEN
+                array_prepend(follower.follower_address, array_agg(following.follower_address))
+            ELSE
+                array_agg(following.follower_address)
+            END AS following_array
+        FROM
+            following_relationships
+            JOIN users AS follower ON follower.id = following_relationships.follower_id
+            JOIN users AS following ON following.id = following_relationships.following_id
+        GROUP BY
+            follower.id) AS following_query
+    WHERE
+        following_query.follower_id = users.id
+    """
+  end
+end

priv/repo/migrations/20191008132427_drop_users_following.exs

@@ -0,0 +1,16 @@
+defmodule Pleroma.Repo.Migrations.DropUsersFollowing do
+  use Ecto.Migration
+
+  # had to disable these to be able to restore `following` index concurrently
+  # https://hexdocs.pm/ecto_sql/Ecto.Migration.html#index/3-adding-dropping-indexes-concurrently
+  @disable_ddl_transaction true
+  @disable_migration_lock true
+
+  def change do
+    drop(index(:users, [:following], concurrently: true, using: :gin))
+
+    alter table(:users) do
+      remove(:following, {:array, :string}, default: [])
+    end
+  end
+end

priv/repo/migrations/20191009154606_add_user_info_columns.exs

@@ -0,0 +1,53 @@
+defmodule Pleroma.Repo.Migrations.AddUsersInfoColumns do
+  use Ecto.Migration
+
+  @jsonb_array_default "'[]'::jsonb"
+
+  def change do
+    alter table(:users) do
+      add_if_not_exists(:banner, :map, default: %{})
+      add_if_not_exists(:background, :map, default: %{})
+      add_if_not_exists(:source_data, :map, default: %{})
+      add_if_not_exists(:note_count, :integer, default: 0)
+      add_if_not_exists(:follower_count, :integer, default: 0)
+      add_if_not_exists(:following_count, :integer, default: nil)
+      add_if_not_exists(:locked, :boolean, default: false, null: false)
+      add_if_not_exists(:confirmation_pending, :boolean, default: false, null: false)
+      add_if_not_exists(:password_reset_pending, :boolean, default: false, null: false)
+      add_if_not_exists(:confirmation_token, :text, default: nil)
+      add_if_not_exists(:default_scope, :string, default: "public")
+      add_if_not_exists(:blocks, {:array, :text}, default: [])
+      add_if_not_exists(:domain_blocks, {:array, :text}, default: [])
+      add_if_not_exists(:mutes, {:array, :text}, default: [])
+      add_if_not_exists(:muted_reblogs, {:array, :text}, default: [])
+      add_if_not_exists(:muted_notifications, {:array, :text}, default: [])
+      add_if_not_exists(:subscribers, {:array, :text}, default: [])
+      add_if_not_exists(:deactivated, :boolean, default: false, null: false)
+      add_if_not_exists(:no_rich_text, :boolean, default: false, null: false)
+      add_if_not_exists(:ap_enabled, :boolean, default: false, null: false)
+      add_if_not_exists(:is_moderator, :boolean, default: false, null: false)
+      add_if_not_exists(:is_admin, :boolean, default: false, null: false)
+      add_if_not_exists(:show_role, :boolean, default: true, null: false)
+      add_if_not_exists(:settings, :map, default: nil)
+      add_if_not_exists(:magic_key, :text, default: nil)
+      add_if_not_exists(:uri, :text, default: nil)
+      add_if_not_exists(:hide_followers_count, :boolean, default: false, null: false)
+      add_if_not_exists(:hide_follows_count, :boolean, default: false, null: false)
+      add_if_not_exists(:hide_followers, :boolean, default: false, null: false)
+      add_if_not_exists(:hide_follows, :boolean, default: false, null: false)
+      add_if_not_exists(:hide_favorites, :boolean, default: true, null: false)
+      add_if_not_exists(:unread_conversation_count, :integer, default: 0)
+      add_if_not_exists(:pinned_activities, {:array, :text}, default: [])
+      add_if_not_exists(:email_notifications, :map, default: %{"digest" => false})
+      add_if_not_exists(:mascot, :map, default: nil)
+      add_if_not_exists(:emoji, :map, default: fragment(@jsonb_array_default))
+      add_if_not_exists(:pleroma_settings_store, :map, default: %{})
+      add_if_not_exists(:fields, :map, default: fragment(@jsonb_array_default))
+      add_if_not_exists(:raw_fields, :map, default: fragment(@jsonb_array_default))
+      add_if_not_exists(:discoverable, :boolean, default: false, null: false)
+      add_if_not_exists(:invisible, :boolean, default: false, null: false)
+      add_if_not_exists(:notification_settings, :map, default: %{})
+      add_if_not_exists(:skip_thread_containment, :boolean, default: false, null: false)
+    end
+  end
+end

priv/repo/migrations/20191009154608_copy_users_info_fields_to_users.exs

@@ -95,79 +95,37 @@ defmodule Pleroma.Repo.Migrations.CopyUsersInfoFieldsToUsers do
   ]
 
   def change do
-    alter table(:users) do
-      add(:banner, :map, default: %{})
-      add(:background, :map, default: %{})
-      add(:source_data, :map, default: %{})
-      add(:note_count, :integer, default: 0)
-      add(:follower_count, :integer, default: 0)
-      add(:following_count, :integer, default: nil)
-      add(:locked, :boolean, default: false, null: false)
-      add(:confirmation_pending, :boolean, default: false, null: false)
-      add(:password_reset_pending, :boolean, default: false, null: false)
-      add(:confirmation_token, :text, default: nil)
-      add(:default_scope, :string, default: "public")
-      add(:blocks, {:array, :text}, default: [])
-      add(:domain_blocks, {:array, :text}, default: [])
-      add(:mutes, {:array, :text}, default: [])
-      add(:muted_reblogs, {:array, :text}, default: [])
-      add(:muted_notifications, {:array, :text}, default: [])
-      add(:subscribers, {:array, :text}, default: [])
-      add(:deactivated, :boolean, default: false, null: false)
-      add(:no_rich_text, :boolean, default: false, null: false)
-      add(:ap_enabled, :boolean, default: false, null: false)
-      add(:is_moderator, :boolean, default: false, null: false)
-      add(:is_admin, :boolean, default: false, null: false)
-      add(:show_role, :boolean, default: true, null: false)
-      add(:settings, :map, default: nil)
-      add(:magic_key, :text, default: nil)
-      add(:uri, :text, default: nil)
-      add(:hide_followers_count, :boolean, default: false, null: false)
-      add(:hide_follows_count, :boolean, default: false, null: false)
-      add(:hide_followers, :boolean, default: false, null: false)
-      add(:hide_follows, :boolean, default: false, null: false)
-      add(:hide_favorites, :boolean, default: true, null: false)
-      add(:unread_conversation_count, :integer, default: 0)
-      add(:pinned_activities, {:array, :text}, default: [])
-      add(:email_notifications, :map, default: %{"digest" => false})
-      add(:mascot, :map, default: nil)
-      add(:emoji, :map, default: fragment(@jsonb_array_default))
-      add(:pleroma_settings_store, :map, default: %{})
-      add(:fields, :map, default: fragment(@jsonb_array_default))
-      add(:raw_fields, :map, default: fragment(@jsonb_array_default))
-      add(:discoverable, :boolean, default: false, null: false)
-      add(:invisible, :boolean, default: false, null: false)
-      add(:notification_settings, :map, default: %{})
-      add(:skip_thread_containment, :boolean, default: false, null: false)
-    end
-
     if direction() == :up do
+      sets =
         for f <- @info_fields do
-        set_field = "update users set #{f} ="
+          set_field = "#{f} ="
 
           # Coercion of null::jsonb to NULL
           jsonb = "case when info->>'#{f}' IS NULL then null else info->'#{f}' end"
 
           cond do
             f in @jsonb_fields ->
-            execute("#{set_field} #{jsonb}")
+              "#{set_field} #{jsonb}"
 
             f in @array_jsonb_fields ->
-            execute("#{set_field} coalesce(#{jsonb}, #{@jsonb_array_default})")
+              "#{set_field} coalesce(#{jsonb}, #{@jsonb_array_default})"
 
             f in @int_fields ->
-            execute("#{set_field} (info->>'#{f}')::int")
+              "#{set_field} (info->>'#{f}')::int"
 
             f in @boolean_fields ->
-            execute("#{set_field} coalesce((info->>'#{f}')::boolean, false)")
+              "#{set_field} coalesce((info->>'#{f}')::boolean, false)"
 
             f in @array_text_fields ->
-            execute("#{set_field} ARRAY(SELECT jsonb_array_elements_text(#{jsonb}))")
+              "#{set_field} ARRAY(SELECT jsonb_array_elements_text(#{jsonb}))"
 
             true ->
-            execute("#{set_field} info->>'#{f}'")
+              "#{set_field} info->>'#{f}'"
           end
         end
+        |> Enum.join(", ")
+
+      execute("update users set " <> sets)
 
       for index_name <- [
             :users_deactivated_index,

priv/repo/migrations/20191026190317_set_not_null_for_activities.exs

@@ -0,0 +1,17 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForActivities do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE activities
+    ALTER COLUMN data SET NOT NULL,
+    ALTER COLUMN local SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE activities
+    ALTER COLUMN data DROP NOT NULL,
+    ALTER COLUMN local DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026190415_set_not_null_for_activity_expirations.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForActivityExpirations do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE activity_expirations
+    ALTER COLUMN activity_id SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE activity_expirations
+    ALTER COLUMN activity_id DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026190500_set_not_null_for_apps.exs

@@ -0,0 +1,17 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForApps do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE apps
+    ALTER COLUMN client_name SET NOT NULL,
+    ALTER COLUMN redirect_uris SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE apps
+    ALTER COLUMN client_name DROP NOT NULL,
+    ALTER COLUMN redirect_uris DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026190533_set_not_null_for_bookmarks.exs

@@ -0,0 +1,17 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForBookmarks do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE bookmarks
+    ALTER COLUMN user_id SET NOT NULL,
+    ALTER COLUMN activity_id SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE bookmarks
+    ALTER COLUMN user_id DROP NOT NULL,
+    ALTER COLUMN activity_id DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026190622_set_not_null_for_config.exs

@@ -0,0 +1,17 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForConfig do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE config
+    ALTER COLUMN key SET NOT NULL,
+    ALTER COLUMN value SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE config
+    ALTER COLUMN key DROP NOT NULL,
+    ALTER COLUMN value DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026190712_set_not_null_for_conversation_participation_recipient_ships.exs

@@ -0,0 +1,17 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForConversationParticipationRecipientShips do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE conversation_participation_recipient_ships
+    ALTER COLUMN user_id SET NOT NULL,
+    ALTER COLUMN participation_id SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE conversation_participation_recipient_ships
+    ALTER COLUMN user_id DROP NOT NULL,
+    ALTER COLUMN participation_id DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026190759_set_not_null_for_conversation_participations.exs

@@ -0,0 +1,19 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForConversationParticipations do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE conversation_participations
+    ALTER COLUMN user_id SET NOT NULL,
+    ALTER COLUMN conversation_id SET NOT NULL,
+    ALTER COLUMN read SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE conversation_participations
+    ALTER COLUMN user_id DROP NOT NULL,
+    ALTER COLUMN conversation_id DROP NOT NULL,
+    ALTER COLUMN read DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026190841_set_not_null_for_filters.exs

@@ -0,0 +1,19 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForFilters do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE filters
+    ALTER COLUMN user_id SET NOT NULL,
+    ALTER COLUMN filter_id SET NOT NULL,
+    ALTER COLUMN whole_word SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE filters
+    ALTER COLUMN user_id DROP NOT NULL,
+    ALTER COLUMN filter_id DROP NOT NULL,
+    ALTER COLUMN whole_word DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191023_set_not_null_for_instances.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForInstances do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE instances
+    ALTER COLUMN host SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE instances
+    ALTER COLUMN host DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191100_set_not_null_for_lists.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForLists do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE lists
+    ALTER COLUMN user_id SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE lists
+    ALTER COLUMN user_id DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191134_set_not_null_for_markers.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForMarkers do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE markers
+    ALTER COLUMN user_id SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE markers
+    ALTER COLUMN user_id DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191218_set_not_null_for_moderation_log.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForModerationLog do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE moderation_log
+    ALTER COLUMN data SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE moderation_log
+    ALTER COLUMN data DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191249_set_not_null_for_notifications.exs

@@ -0,0 +1,17 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForNotifications do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE notifications
+    ALTER COLUMN user_id SET NOT NULL,
+    ALTER COLUMN seen SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE notifications
+    ALTER COLUMN user_id DROP NOT NULL,
+    ALTER COLUMN seen DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191328_set_not_null_for_oauth_authorizations.exs

@@ -0,0 +1,19 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForOauthAuthorizations do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE oauth_authorizations
+    ALTER COLUMN app_id SET NOT NULL,
+    ALTER COLUMN token SET NOT NULL,
+    ALTER COLUMN used SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE oauth_authorizations
+    ALTER COLUMN app_id DROP NOT NULL,
+    ALTER COLUMN token DROP NOT NULL,
+    ALTER COLUMN used DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191401_set_not_null_for_oauth_tokens.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForOauthTokens do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE oauth_tokens
+    ALTER COLUMN app_id SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE oauth_tokens
+    ALTER COLUMN app_id DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191442_set_not_null_for_objects.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForObjects do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE objects
+    ALTER COLUMN data SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE objects
+    ALTER COLUMN data DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191524_set_not_null_for_password_reset_tokens.exs

@@ -0,0 +1,19 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForPasswordResetTokens do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE password_reset_tokens
+    ALTER COLUMN token SET NOT NULL,
+    ALTER COLUMN user_id SET NOT NULL,
+    ALTER COLUMN used SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE password_reset_tokens
+    ALTER COLUMN token DROP NOT NULL,
+    ALTER COLUMN user_id DROP NOT NULL,
+    ALTER COLUMN used DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191603_set_not_null_for_push_subscriptions.exs

@@ -0,0 +1,25 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForPushSubscriptions do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE push_subscriptions
+    ALTER COLUMN user_id SET NOT NULL,
+    ALTER COLUMN token_id SET NOT NULL,
+    ALTER COLUMN endpoint SET NOT NULL,
+    ALTER COLUMN key_p256dh SET NOT NULL,
+    ALTER COLUMN key_auth SET NOT NULL,
+    ALTER COLUMN data SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE push_subscriptions
+    ALTER COLUMN user_id DROP NOT NULL,
+    ALTER COLUMN token_id DROP NOT NULL,
+    ALTER COLUMN endpoint DROP NOT NULL,
+    ALTER COLUMN key_p256dh DROP NOT NULL,
+    ALTER COLUMN key_auth DROP NOT NULL,
+    ALTER COLUMN data DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191635_set_not_null_for_registrations.exs

@@ -0,0 +1,19 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForRegistrations do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE registrations
+    ALTER COLUMN provider SET NOT NULL,
+    ALTER COLUMN uid SET NOT NULL,
+    ALTER COLUMN info SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE registrations
+    ALTER COLUMN provider DROP NOT NULL,
+    ALTER COLUMN uid DROP NOT NULL,
+    ALTER COLUMN info DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191711_set_not_null_for_scheduled_activities.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForScheduledActivities do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE scheduled_activities
+    ALTER COLUMN user_id SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE scheduled_activities
+    ALTER COLUMN user_id DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191753_set_not_null_for_thread_mutes.exs

@@ -0,0 +1,17 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForThreadMutes do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE thread_mutes
+    ALTER COLUMN user_id SET NOT NULL,
+    ALTER COLUMN context SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE thread_mutes
+    ALTER COLUMN user_id DROP NOT NULL,
+    ALTER COLUMN context DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191826_set_not_null_for_user_invite_tokens.exs

@@ -0,0 +1,19 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForUserInviteTokens do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE user_invite_tokens
+    ALTER COLUMN used SET NOT NULL,
+    ALTER COLUMN uses SET NOT NULL,
+    ALTER COLUMN invite_type SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE user_invite_tokens
+    ALTER COLUMN used DROP NOT NULL,
+    ALTER COLUMN uses DROP NOT NULL,
+    ALTER COLUMN invite_type DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191026191910_set_not_null_for_users.exs

@@ -0,0 +1,44 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForUsers do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    # irreversible
+    execute("UPDATE users SET follower_count = 0 WHERE follower_count IS NULL")
+
+    execute("ALTER TABLE users
+    ALTER COLUMN local SET NOT NULL,
+    ALTER COLUMN source_data SET NOT NULL,
+    ALTER COLUMN note_count SET NOT NULL,
+    ALTER COLUMN follower_count SET NOT NULL,
+    ALTER COLUMN blocks SET NOT NULL,
+    ALTER COLUMN domain_blocks SET NOT NULL,
+    ALTER COLUMN mutes SET NOT NULL,
+    ALTER COLUMN muted_reblogs SET NOT NULL,
+    ALTER COLUMN muted_notifications SET NOT NULL,
+    ALTER COLUMN subscribers SET NOT NULL,
+    ALTER COLUMN pinned_activities SET NOT NULL,
+    ALTER COLUMN emoji SET NOT NULL,
+    ALTER COLUMN fields SET NOT NULL,
+    ALTER COLUMN raw_fields SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE users
+    ALTER COLUMN local DROP NOT NULL,
+    ALTER COLUMN source_data DROP NOT NULL,
+    ALTER COLUMN note_count DROP NOT NULL,
+    ALTER COLUMN follower_count DROP NOT NULL,
+    ALTER COLUMN blocks DROP NOT NULL,
+    ALTER COLUMN domain_blocks DROP NOT NULL,
+    ALTER COLUMN mutes DROP NOT NULL,
+    ALTER COLUMN muted_reblogs DROP NOT NULL,
+    ALTER COLUMN muted_notifications DROP NOT NULL,
+    ALTER COLUMN subscribers DROP NOT NULL,
+    ALTER COLUMN pinned_activities DROP NOT NULL,
+    ALTER COLUMN emoji DROP NOT NULL,
+    ALTER COLUMN fields DROP NOT NULL,
+    ALTER COLUMN raw_fields DROP NOT NULL")
+  end
+end

priv/repo/migrations/20191029101340_migrate_missing_follow_requests.exs

@@ -0,0 +1,35 @@
+defmodule Pleroma.Repo.Migrations.MigrateMissingFollowingRelationships do
+  use Ecto.Migration
+
+  def change do
+    execute(import_pending_follows_from_activities(), "")
+  end
+
+  defp import_pending_follows_from_activities do
+    """
+    INSERT INTO
+        following_relationships (
+            follower_id,
+            following_id,
+            state,
+            inserted_at,
+            updated_at
+        )
+    SELECT
+        followers.id,
+        following.id,
+        activities.data ->> 'state',
+        (activities.data ->> 'published') :: timestamp,
+        now()
+    FROM
+        activities
+        JOIN users AS followers ON (activities.actor = followers.ap_id)
+        JOIN users AS following ON (activities.data ->> 'object' = following.ap_id)
+    WHERE
+        activities.data ->> 'type' = 'Follow'
+        AND activities.data ->> 'state' = 'pending'
+    ORDER BY activities.updated_at DESC
+    ON CONFLICT DO NOTHING
+    """
+  end
+end

priv/repo/migrations/20191029172832_fix_blocked_follows.exs

@@ -0,0 +1,112 @@
+defmodule Pleroma.Repo.Migrations.FixBlockedFollows do
+  use Ecto.Migration
+
+  import Ecto.Query
+  alias Pleroma.Config
+  alias Pleroma.Repo
+
+  def up do
+    unfollow_blocked = Config.get([:activitypub, :unfollow_blocked])
+
+    if unfollow_blocked do
+      "activities"
+      |> where([activity], fragment("? ->> 'type' = 'Block'", activity.data))
+      |> distinct([activity], [
+        activity.actor,
+        fragment(
+          "coalesce((?)->'object'->>'id', (?)->>'object')",
+          activity.data,
+          activity.data
+        )
+      ])
+      |> order_by([activity], [fragment("? desc nulls last", activity.id)])
+      |> select([activity], %{
+        blocker: activity.actor,
+        blocked:
+          fragment("coalesce((?)->'object'->>'id', (?)->>'object')", activity.data, activity.data),
+        created_at: activity.id
+      })
+      |> Repo.stream()
+      |> Enum.map(&unfollow_if_blocked/1)
+      |> Enum.uniq()
+      |> Enum.each(&update_follower_count/1)
+    end
+  end
+
+  def down do
+  end
+
+  def unfollow_if_blocked(%{blocker: blocker_id, blocked: blocked_id, created_at: blocked_at}) do
+    query =
+      from(
+        activity in "activities",
+        where: fragment("? ->> 'type' = 'Follow'", activity.data),
+        where: activity.actor == ^blocked_id,
+        # this is to use the index
+        where:
+          fragment(
+            "coalesce((?)->'object'->>'id', (?)->>'object') = ?",
+            activity.data,
+            activity.data,
+            ^blocker_id
+          ),
+        where: activity.id > ^blocked_at,
+        where: fragment("(?)->>'state' = 'accept'", activity.data),
+        order_by: [fragment("? desc nulls last", activity.id)]
+      )
+
+    unless Repo.exists?(query) do
+      blocker = "users" |> select([:id, :local]) |> Repo.get_by(ap_id: blocker_id)
+      blocked = "users" |> select([:id]) |> Repo.get_by(ap_id: blocked_id)
+
+      if !is_nil(blocker) && !is_nil(blocked) do
+        unfollow(blocked, blocker)
+      end
+    end
+  end
+
+  def unfollow(%{id: follower_id}, %{id: followed_id} = followed) do
+    following_relationship =
+      "following_relationships"
+      |> where(follower_id: ^follower_id, following_id: ^followed_id, state: "accept")
+      |> select([:id])
+      |> Repo.one()
+
+    case following_relationship do
+      nil ->
+        {:ok, nil}
+
+      %{id: following_relationship_id} ->
+        "following_relationships"
+        |> where(id: ^following_relationship_id)
+        |> Repo.delete_all()
+
+        followed
+    end
+  end
+
+  def update_follower_count(%{id: user_id} = user) do
+    if user.local or !Pleroma.Config.get([:instance, :external_user_synchronization]) do
+      follower_count_query =
+        "users"
+        |> where([u], u.id != ^user_id)
+        |> where([u], u.deactivated != ^true)
+        |> join(:inner, [u], r in "following_relationships",
+          as: :relationships,
+          on: r.following_id == ^user_id and r.follower_id == u.id
+        )
+        |> where([relationships: r], r.state == "accept")
+        |> select([u], %{count: count(u.id)})
+
+      "users"
+      |> where(id: ^user_id)
+      |> join(:inner, [u], s in subquery(follower_count_query))
+      |> update([u, s],
+        set: [follower_count: s.count]
+      )
+      |> Repo.update_all([])
+    end
+  end
+
+  def update_follower_count(_), do: :noop
+end

test/support/factory.ex

@@ -39,8 +39,7 @@ def user_factory do
       user
       | ap_id: User.ap_id(user),
         follower_address: User.ap_followers(user),
-        following_address: User.ap_following(user),
+        following_address: User.ap_following(user)
-        following: [User.ap_id(user)]
     }
   end
 

test/tasks/database_test.exs

@@ -72,24 +72,25 @@ test "it prunes old objects from the database" do
   describe "running update_users_following_followers_counts" do
     test "following and followers count are updated" do
       [user, user2] = insert_pair(:user)
-      {:ok, %User{following: following} = user} = User.follow(user, user2)
+      {:ok, %User{} = user} = User.follow(user, user2)
+
+      following = User.following(user)
 
       assert length(following) == 2
       assert user.follower_count == 0
 
       {:ok, user} =
         user
-        |> Ecto.Changeset.change(%{following: following ++ following, follower_count: 3})
+        |> Ecto.Changeset.change(%{follower_count: 3})
         |> Repo.update()
 
-      assert length(user.following) == 4
       assert user.follower_count == 3
 
       assert :ok == Mix.Tasks.Pleroma.Database.run(["update_users_following_followers_counts"])
 
       user = User.get_by_id(user.id)
 
-      assert length(user.following) == 2
+      assert length(User.following(user)) == 2
       assert user.follower_count == 0
     end
   end

test/tasks/relay_test.exs

@@ -51,7 +51,7 @@ test "relay is unfollowed" do
       target_user = User.get_cached_by_ap_id(target_instance)
       follow_activity = Utils.fetch_latest_follow(local_user, target_user)
       User.follow(local_user, target_user)
-      assert "#{target_instance}/followers" in refresh_record(local_user).following
+      assert "#{target_instance}/followers" in User.following(local_user)
       Mix.Tasks.Pleroma.Relay.run(["unfollow", target_instance])
 
       cancelled_activity = Activity.get_by_ap_id(follow_activity.data["id"])
@@ -68,7 +68,7 @@ test "relay is unfollowed" do
       assert undo_activity.data["type"] == "Undo"
       assert undo_activity.data["actor"] == local_user.ap_id
       assert undo_activity.data["object"] == cancelled_activity.data
-      refute "#{target_instance}/followers" in refresh_record(local_user).following
+      refute "#{target_instance}/followers" in User.following(local_user)
     end
   end
 
@@ -78,20 +78,18 @@ test "Prints relay subscription list" do
 
       refute_receive {:mix_shell, :info, _}
 
-      Pleroma.Web.ActivityPub.Relay.get_actor()
+      relay_user = Relay.get_actor()
-      |> Ecto.Changeset.change(
+
-        following: [
+      ["http://mastodon.example.org/users/admin", "https://mstdn.io/users/mayuutann"]
-          "http://test-app.com/user/test1",
+      |> Enum.each(fn ap_id ->
-          "http://test-app.com/user/test1",
+        {:ok, user} = User.get_or_fetch_by_ap_id(ap_id)
-          "http://test-app-42.com/user/test1"
+        User.follow(relay_user, user)
-        ]
+      end)
-      )
-      |> Pleroma.User.update_and_set_cache()
 
       :ok = Mix.Tasks.Pleroma.Relay.run(["list"])
 
-      assert_receive {:mix_shell, :info, ["test-app.com"]}
+      assert_receive {:mix_shell, :info, ["mstdn.io"]}
-      assert_receive {:mix_shell, :info, ["test-app-42.com"]}
+      assert_receive {:mix_shell, :info, ["mastodon.example.org"]}
     end
   end
 end

test/tasks/user_test.exs

@@ -139,7 +139,8 @@ test "no user to toggle" do
   describe "running unsubscribe" do
     test "user is unsubscribed" do
       followed = insert(:user)
-      user = insert(:user, %{following: [User.ap_followers(followed)]})
+      user = insert(:user)
+      User.follow(user, followed, "accept")
 
       Mix.Tasks.Pleroma.User.run(["unsubscribe", user.nickname])
 
@@ -154,7 +155,7 @@ test "user is unsubscribed" do
       assert message =~ "Successfully unsubscribed"
 
       user = User.get_cached_by_nickname(user.nickname)
-      assert Enum.empty?(user.following)
+      assert Enum.empty?(User.get_friends(user))
       assert user.deactivated
     end
 

test/user_test.exs

@@ -88,10 +88,9 @@ test "doesn't return already accepted or duplicate follow requests" do
     CommonAPI.follow(pending_follower, locked)
     CommonAPI.follow(pending_follower, locked)
     CommonAPI.follow(accepted_follower, locked)
-    User.follow(accepted_follower, locked)
+    Pleroma.FollowingRelationship.update(accepted_follower, locked, "accept")
 
-    assert [activity] = User.get_follow_requests(locked)
+    assert [^pending_follower] = User.get_follow_requests(locked)
-    assert activity
   end
 
   test "clears follow requests when requester is blocked" do
@@ -136,10 +135,10 @@ test "follow_all follows mutliple users without duplicating" do
     followed_two = insert(:user)
 
     {:ok, user} = User.follow_all(user, [followed_zero, followed_one])
-    assert length(user.following) == 3
+    assert length(User.following(user)) == 3
 
     {:ok, user} = User.follow_all(user, [followed_one, followed_two])
-    assert length(user.following) == 4
+    assert length(User.following(user)) == 4
   end
 
   test "follow takes a user and another user" do
@@ -153,7 +152,7 @@ test "follow takes a user and another user" do
     followed = User.get_cached_by_ap_id(followed.ap_id)
     assert followed.follower_count == 1
 
-    assert User.ap_followers(followed) in user.following
+    assert User.ap_followers(followed) in User.following(user)
   end
 
   test "can't follow a deactivated users" do
@@ -218,26 +217,29 @@ test "unfollow with syncronizes external user" do
           nickname: "fuser2",
           ap_id: "http://localhost:4001/users/fuser2",
           follower_address: "http://localhost:4001/users/fuser2/followers",
-          following_address: "http://localhost:4001/users/fuser2/following",
+          following_address: "http://localhost:4001/users/fuser2/following"
-          following: [User.ap_followers(followed)]
         })
 
+      {:ok, user} = User.follow(user, followed, "accept")
+
       {:ok, user, _activity} = User.unfollow(user, followed)
 
       user = User.get_cached_by_id(user.id)
 
-      assert user.following == []
+      assert User.following(user) == []
     end
 
     test "unfollow takes a user and another user" do
       followed = insert(:user)
-      user = insert(:user, %{following: [User.ap_followers(followed)]})
+      user = insert(:user)
+
+      {:ok, user} = User.follow(user, followed, "accept")
+
+      assert User.following(user) == [user.follower_address, followed.follower_address]
 
       {:ok, user, _activity} = User.unfollow(user, followed)
 
-      user = User.get_cached_by_id(user.id)
+      assert User.following(user) == [user.follower_address]
-
-      assert user.following == []
     end
 
     test "unfollow doesn't unfollow yourself" do
@@ -245,14 +247,14 @@ test "unfollow doesn't unfollow yourself" do
 
       {:error, _} = User.unfollow(user, user)
 
-      user = User.get_cached_by_id(user.id)
+      assert User.following(user) == [user.follower_address]
-      assert user.following == [user.ap_id]
     end
   end
 
   test "test if a user is following another user" do
     followed = insert(:user)
-    user = insert(:user, %{following: [User.ap_followers(followed)]})
+    user = insert(:user)
+    User.follow(user, followed, "accept")
 
     assert User.following?(user, followed)
     refute User.following?(followed, user)
@@ -335,7 +337,7 @@ test "it restricts certain nicknames" do
       refute changeset.valid?
     end
 
-    test "it sets the password_hash, ap_id and following fields" do
+    test "it sets the password_hash and ap_id" do
       changeset = User.register_changeset(%User{}, @full_user_data)
 
       assert changeset.valid?
@@ -343,10 +345,6 @@ test "it sets the password_hash, ap_id and following fields" do
       assert is_binary(changeset.changes[:password_hash])
       assert changeset.changes[:ap_id] == User.ap_id(%User{nickname: @full_user_data.nickname})
 
-      assert changeset.changes[:following] == [
-               User.ap_followers(%User{nickname: @full_user_data.nickname})
-             ]
-
       assert changeset.changes.follower_address == "#{changeset.changes.ap_id}/followers"
     end
 
@@ -650,37 +648,6 @@ test "it sets the follower_count property" do
     end
   end
 
-  describe "remove duplicates from following list" do
-    test "it removes duplicates" do
-      user = insert(:user)
-      follower = insert(:user)
-
-      {:ok, %User{following: following} = follower} = User.follow(follower, user)
-      assert length(following) == 2
-
-      {:ok, follower} =
-        follower
-        |> User.update_changeset(%{following: following ++ following})
-        |> Repo.update()
-
-      assert length(follower.following) == 4
-
-      {:ok, follower} = User.remove_duplicated_following(follower)
-      assert length(follower.following) == 2
-    end
-
-    test "it does nothing when following is uniq" do
-      user = insert(:user)
-      follower = insert(:user)
-
-      {:ok, follower} = User.follow(follower, user)
-      assert length(follower.following) == 2
-
-      {:ok, follower} = User.remove_duplicated_following(follower)
-      assert length(follower.following) == 2
-    end
-  end
-
   describe "follow_import" do
     test "it imports user followings from list" do
       [user1, user2, user3] = insert_list(3, :user)
@@ -989,7 +956,9 @@ test "hide a user's statuses from timelines and notifications" do
       assert [activity] == ActivityPub.fetch_public_activities(%{}) |> Repo.preload(:bookmark)
 
       assert [%{activity | thread_muted?: CommonAPI.thread_muted?(user2, activity)}] ==
-               ActivityPub.fetch_activities([user2.ap_id | user2.following], %{"user" => user2})
+               ActivityPub.fetch_activities([user2.ap_id | User.following(user2)], %{
+                 "user" => user2
+               })
 
       {:ok, _user} = User.deactivate(user)
 
@@ -997,7 +966,9 @@ test "hide a user's statuses from timelines and notifications" do
       assert [] == Pleroma.Notification.for_user(user2)
 
       assert [] ==
-               ActivityPub.fetch_activities([user2.ap_id | user2.following], %{"user" => user2})
+               ActivityPub.fetch_activities([user2.ap_id | User.following(user2)], %{
+                 "user" => user2
+               })
     end
   end
 

test/web/activity_pub/activity_pub_test.exs

@@ -693,7 +693,7 @@ test "does include announces on request" do
 
     {:ok, announce, _object} = CommonAPI.repeat(activity_three.id, booster)
 
-    [announce_activity] = ActivityPub.fetch_activities([user.ap_id | user.following])
+    [announce_activity] = ActivityPub.fetch_activities([user.ap_id | User.following(user)])
 
     assert announce_activity.id == announce.id
   end
@@ -1219,7 +1219,7 @@ test "it filters broken threads" do
         })
 
       activities =
-        ActivityPub.fetch_activities([user1.ap_id | user1.following])
+        ActivityPub.fetch_activities([user1.ap_id | User.following(user1)])
         |> Enum.map(fn a -> a.id end)
 
       private_activity_1 = Activity.get_by_ap_id_with_object(private_activity_1.data["id"])
@@ -1229,7 +1229,7 @@ test "it filters broken threads" do
       assert length(activities) == 3
 
       activities =
-        ActivityPub.fetch_activities([user1.ap_id | user1.following], %{"user" => user1})
+        ActivityPub.fetch_activities([user1.ap_id | User.following(user1)], %{"user" => user1})
         |> Enum.map(fn a -> a.id end)
 
       assert [public_activity.id, private_activity_1.id] == activities

test/web/activity_pub/relay_test.exs

@@ -56,14 +56,14 @@ test "returns activity" do
       service_actor = Relay.get_actor()
       ActivityPub.follow(service_actor, user)
       Pleroma.User.follow(service_actor, user)
-      assert "#{user.ap_id}/followers" in refresh_record(service_actor).following
+      assert "#{user.ap_id}/followers" in User.following(service_actor)
       assert {:ok, %Activity{} = activity} = Relay.unfollow(user.ap_id)
       assert activity.actor == "#{Pleroma.Web.Endpoint.url()}/relay"
       assert user.ap_id in activity.recipients
       assert activity.data["type"] == "Undo"
       assert activity.data["actor"] == service_actor.ap_id
       assert activity.data["to"] == [user.ap_id]
-      refute "#{user.ap_id}/followers" in refresh_record(service_actor).following
+      refute "#{user.ap_id}/followers" in User.following(service_actor)
     end
   end
 

test/web/activity_pub/transmogrifier_test.exs

@@ -804,6 +804,25 @@ test "it works for incomming unfollows with an existing follow" do
       refute User.following?(User.get_cached_by_ap_id(data["actor"]), user)
     end
 
+    test "it works for incoming follows to locked account" do
+      pending_follower = insert(:user, ap_id: "http://mastodon.example.org/users/admin")
+      user = insert(:user, locked: true)
+
+      data =
+        File.read!("test/fixtures/mastodon-follow-activity.json")
+        |> Poison.decode!()
+        |> Map.put("object", user.ap_id)
+
+      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+
+      assert data["type"] == "Follow"
+      assert data["object"] == user.ap_id
+      assert data["state"] == "pending"
+      assert data["actor"] == "http://mastodon.example.org/users/admin"
+
+      assert [^pending_follower] = User.get_follow_requests(user)
+    end
+
     test "it works for incoming blocks" do
       user = insert(:user)
 
@@ -1334,7 +1353,8 @@ test "it upgrades a user to activitypub" do
           follower_address: User.ap_followers(%User{nickname: "rye@niu.moe"})
         })
 
-      user_two = insert(:user, %{following: [user.follower_address]})
+      user_two = insert(:user)
+      Pleroma.FollowingRelationship.follow(user_two, user, "accept")
 
       {:ok, activity} = CommonAPI.post(user, %{"status" => "test"})
       {:ok, unrelated_activity} = CommonAPI.post(user_two, %{"status" => "test"})
@@ -1381,8 +1401,8 @@ test "it upgrades a user to activitypub" do
       refute user.follower_address in unrelated_activity.recipients
 
       user_two = User.get_cached_by_id(user_two.id)
-      assert user.follower_address in user_two.following
+      assert User.following?(user_two, user)
-      refute "..." in user_two.following
+      refute "..." in User.following(user_two)
     end
   end
 

test/web/activity_pub/visibilty_test.exs

@@ -212,7 +212,8 @@ test "returns false when invalid recipients", %{user: user} do
 
     test "returns true if user following to author" do
       author = insert(:user)
-      user = insert(:user, following: [author.ap_id])
+      user = insert(:user)
+      Pleroma.User.follow(user, author)
 
       activity =
         insert(:note_activity,

test/web/admin_api/admin_api_controller_test.exs

@@ -2572,22 +2572,20 @@ test "POST /relay", %{admin: admin} do
     end
 
     test "GET /relay", %{admin: admin} do
-      Pleroma.Web.ActivityPub.Relay.get_actor()
+      relay_user = Pleroma.Web.ActivityPub.Relay.get_actor()
-      |> Ecto.Changeset.change(
+
-        following: [
+      ["http://mastodon.example.org/users/admin", "https://mstdn.io/users/mayuutann"]
-          "http://test-app.com/user/test1",
+      |> Enum.each(fn ap_id ->
-          "http://test-app.com/user/test1",
+        {:ok, user} = User.get_or_fetch_by_ap_id(ap_id)
-          "http://test-app-42.com/user/test1"
+        User.follow(relay_user, user)
-        ]
+      end)
-      )
-      |> Pleroma.User.update_and_set_cache()
 
       conn =
         build_conn()
         |> assign(:user, admin)
         |> get("/api/pleroma/admin/relay")
 
-      assert json_response(conn, 200)["relays"] -- ["test-app.com", "test-app-42.com"] == []
+      assert json_response(conn, 200)["relays"] -- ["mastodon.example.org", "mstdn.io"] == []
     end
 
     test "DELETE /relay", %{admin: admin} do

test/web/mastodon_api/controllers/account_controller_test.exs

@@ -471,7 +471,7 @@ test "following without reblogs" do
 
       conn =
         build_conn()
-        |> assign(:user, follower)
+        |> assign(:user, User.get_cached_by_id(follower.id))
         |> post("/api/v1/accounts/#{followed.id}/follow?reblogs=true")
 
       assert %{"showing_reblogs" => true} = json_response(conn, 200)

test/web/mastodon_api/controllers/follow_request_controller_test.exs

@@ -16,9 +16,7 @@ test "/api/v1/follow_requests works" do
       other_user = insert(:user)
 
       {:ok, _activity} = ActivityPub.follow(other_user, user)
-
+      {:ok, other_user} = User.follow(other_user, user, "pending")
-      user = User.get_cached_by_id(user.id)
-      other_user = User.get_cached_by_id(other_user.id)
 
       assert User.following?(other_user, user) == false
 
@@ -36,6 +34,7 @@ test "/api/v1/follow_requests/:id/authorize works" do
       other_user = insert(:user)
 
       {:ok, _activity} = ActivityPub.follow(other_user, user)
+      {:ok, other_user} = User.follow(other_user, user, "pending")
 
       user = User.get_cached_by_id(user.id)
       other_user = User.get_cached_by_id(other_user.id)

test/web/streamer/streamer_test.exs

@@ -169,7 +169,8 @@ test "it sends to public" do
     test "it doesn't send to user if recipients invalid and thread containment is enabled" do
       Pleroma.Config.put([:instance, :skip_thread_containment], false)
       author = insert(:user)
-      user = insert(:user, following: [author.ap_id])
+      user = insert(:user)
+      User.follow(user, author, "accept")
 
       activity =
         insert(:note_activity,
@@ -191,7 +192,8 @@ test "it doesn't send to user if recipients invalid and thread containment is en
     test "it sends message if recipients invalid and thread containment is disabled" do
       Pleroma.Config.put([:instance, :skip_thread_containment], true)
       author = insert(:user)
-      user = insert(:user, following: [author.ap_id])
+      user = insert(:user)
+      User.follow(user, author, "accept")
 
       activity =
         insert(:note_activity,
@@ -213,7 +215,8 @@ test "it sends message if recipients invalid and thread containment is disabled"
     test "it sends message if recipients invalid and thread containment is enabled but user's thread containment is disabled" do
       Pleroma.Config.put([:instance, :skip_thread_containment], false)
       author = insert(:user)
-      user = insert(:user, following: [author.ap_id], skip_thread_containment: true)
+      user = insert(:user, skip_thread_containment: true)
+      User.follow(user, author, "accept")
 
       activity =
         insert(:note_activity,

test/web/twitter_api/util_controller_test.exs

@@ -366,7 +366,7 @@ test "follows user", %{conn: conn} do
         |> response(200)
 
       assert response =~ "Account followed!"
-      assert user2.follower_address in refresh_record(user).following
+      assert user2.follower_address in User.following(user)
     end
 
     test "returns error when user is deactivated", %{conn: conn} do
@@ -438,7 +438,7 @@ test "follows", %{conn: conn} do
         |> response(200)
 
       assert response =~ "Account followed!"
-      assert user2.follower_address in refresh_record(user).following
+      assert user2.follower_address in User.following(user)
     end
 
     test "returns error when followee not found", %{conn: conn} do