Merge branch 'develop' into issue/1411

lib/pleroma/activity.ex

@@ -28,7 +28,8 @@ defmodule Pleroma.Activity do
     "Create" => "mention",
     "Follow" => "follow",
     "Announce" => "reblog",
-    "Like" => "favourite"
+    "Like" => "favourite",
+    "Move" => "move"
   }
 
   @mastodon_to_ap_notification_types for {k, v} <- @mastodon_notification_types,

lib/pleroma/following_relationship.ex

@@ -107,4 +107,22 @@ defmodule Pleroma.FollowingRelationship do
       [user.follower_address | following]
     end
   end
+
+  def move_following(origin, target) do
+    __MODULE__
+    |> join(:inner, [r], f in assoc(r, :follower))
+    |> where(following_id: ^origin.id)
+    |> where([r, f], f.allow_following_move == true)
+    |> limit(50)
+    |> preload([:follower])
+    |> Repo.all()
+    |> Enum.map(fn following_relationship ->
+      Repo.delete(following_relationship)
+      Pleroma.Web.CommonAPI.follow(following_relationship.follower, target)
+    end)
+    |> case do
+      [] -> :ok
+      _ -> move_following(origin, target)
+    end
+  end
 end

lib/pleroma/html.ex

@@ -91,7 +91,6 @@ defmodule Pleroma.HTML do
     Cachex.fetch!(:scrubber_cache, key, fn _key ->
       result =
         content
-        |> HtmlEntities.decode()
         |> Floki.filter_out("a.mention,a.hashtag,a[rel~=\"tag\"]")
         |> Floki.attribute("a", "href")
         |> Enum.at(0)

lib/pleroma/notification.ex

@@ -251,10 +251,13 @@ defmodule Pleroma.Notification do
     end
   end
 
-  def create_notifications(%Activity{data: %{"to" => _, "type" => type}} = activity)
-      when type in ["Like", "Announce", "Follow"] do
-    users = get_notified_from_activity(activity)
-    notifications = Enum.map(users, fn user -> create_notification(activity, user) end)
+  def create_notifications(%Activity{data: %{"type" => type}} = activity)
+      when type in ["Like", "Announce", "Follow", "Move"] do
+    notifications =
+      activity
+      |> get_notified_from_activity()
+      |> Enum.map(&create_notification(activity, &1))
+
     {:ok, notifications}
   end
 
@@ -276,19 +279,15 @@ defmodule Pleroma.Notification do
 
   def get_notified_from_activity(activity, local_only \\ true)
 
-  def get_notified_from_activity(
-        %Activity{data: %{"to" => _, "type" => type} = _data} = activity,
-        local_only
-      )
-      when type in ["Create", "Like", "Announce", "Follow"] do
-    recipients =
-      []
-      |> Utils.maybe_notify_to_recipients(activity)
-      |> Utils.maybe_notify_mentioned_recipients(activity)
-      |> Utils.maybe_notify_subscribers(activity)
-      |> Enum.uniq()
-
-    User.get_users_from_set(recipients, local_only)
+  def get_notified_from_activity(%Activity{data: %{"type" => type}} = activity, local_only)
+      when type in ["Create", "Like", "Announce", "Follow", "Move"] do
+    []
+    |> Utils.maybe_notify_to_recipients(activity)
+    |> Utils.maybe_notify_mentioned_recipients(activity)
+    |> Utils.maybe_notify_subscribers(activity)
+    |> Utils.maybe_notify_followers(activity)
+    |> Enum.uniq()
+    |> User.get_users_from_set(local_only)
   end
 
   def get_notified_from_activity(_, _local_only), do: []

lib/pleroma/user.ex

@@ -103,7 +103,9 @@ defmodule Pleroma.User do
     field(:raw_fields, {:array, :map}, default: [])
     field(:discoverable, :boolean, default: false)
     field(:invisible, :boolean, default: false)
+    field(:allow_following_move, :boolean, default: true)
     field(:skip_thread_containment, :boolean, default: false)
+    field(:also_known_as, {:array, :string}, default: [])
 
     field(:notification_settings, :map,
       default: %{
@@ -251,7 +253,8 @@ defmodule Pleroma.User do
           :fields,
           :following_count,
           :discoverable,
-          :invisible
+          :invisible,
+          :also_known_as
         ]
       )
       |> validate_required([:name, :ap_id])
@@ -293,13 +296,15 @@ defmodule Pleroma.User do
         :hide_followers_count,
         :hide_follows_count,
         :hide_favorites,
+        :allow_following_move,
         :background,
         :show_role,
         :skip_thread_containment,
         :fields,
         :raw_fields,
         :pleroma_settings_store,
-        :discoverable
+        :discoverable,
+        :also_known_as
       ]
     )
     |> unique_constraint(:nickname)
@@ -337,9 +342,11 @@ defmodule Pleroma.User do
         :hide_follows,
         :fields,
         :hide_followers,
+        :allow_following_move,
         :discoverable,
         :hide_followers_count,
-        :hide_follows_count
+        :hide_follows_count,
+        :also_known_as
       ]
     )
     |> unique_constraint(:nickname)

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -541,6 +541,30 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
+  def move(%User{} = origin, %User{} = target, local \\ true) do
+    params = %{
+      "type" => "Move",
+      "actor" => origin.ap_id,
+      "object" => origin.ap_id,
+      "target" => target.ap_id
+    }
+
+    with true <- origin.ap_id in target.also_known_as,
+         {:ok, activity} <- insert(params, local) do
+      maybe_federate(activity)
+
+      BackgroundWorker.enqueue("move_following", %{
+        "origin_id" => origin.id,
+        "target_id" => target.id
+      })
+
+      {:ok, activity}
+    else
+      false -> {:error, "Target account must have the origin in `alsoKnownAs`"}
+      err -> err
+    end
+  end
+
   defp fetch_activities_for_context_query(context, opts) do
     public = [Pleroma.Constants.as_public()]
 
@@ -1190,7 +1214,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
       name: data["name"],
       follower_address: data["followers"],
       following_address: data["following"],
-      bio: data["summary"]
+      bio: data["summary"],
+      also_known_as: Map.get(data, "alsoKnownAs", [])
     }
 
     # nickname can be nil because of virtual actors

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -669,7 +669,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
 
       update_data =
         new_user_data
-        |> Map.take([:avatar, :banner, :bio, :name])
+        |> Map.take([:avatar, :banner, :bio, :name, :also_known_as])
         |> Map.put(:fields, fields)
         |> Map.put(:locked, locked)
         |> Map.put(:invisible, invisible)
@@ -857,6 +857,24 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     end
   end
 
+  def handle_incoming(
+        %{
+          "type" => "Move",
+          "actor" => origin_actor,
+          "object" => origin_actor,
+          "target" => target_actor
+        },
+        _options
+      ) do
+    with %User{} = origin_user <- User.get_cached_by_ap_id(origin_actor),
+         {:ok, %User{} = target_user} <- User.get_or_fetch_by_ap_id(target_actor),
+         true <- origin_actor in target_user.also_known_as do
+      ActivityPub.move(origin_user, target_user, false)
+    else
+      _e -> :error
+    end
+  end
+
   def handle_incoming(_, _), do: :error
 
   @spec get_obj_helper(String.t(), Keyword.t()) :: {:ok, Object.t()} | nil

lib/pleroma/web/activity_pub/visibility.ex

@@ -14,6 +14,7 @@ defmodule Pleroma.Web.ActivityPub.Visibility do
   @spec is_public?(Object.t() | Activity.t() | map()) :: boolean()
   def is_public?(%Object{data: %{"type" => "Tombstone"}}), do: false
   def is_public?(%Object{data: data}), do: is_public?(data)
+  def is_public?(%Activity{data: %{"type" => "Move"}}), do: true
   def is_public?(%Activity{data: data}), do: is_public?(data)
   def is_public?(%{"directMessage" => true}), do: false
   def is_public?(data), do: Utils.label_in_message?(Pleroma.Constants.as_public(), data)

lib/pleroma/web/common_api/utils.ex

@@ -451,6 +451,8 @@ defmodule Pleroma.Web.CommonAPI.Utils do
     recipients ++ to
   end
 
+  def maybe_notify_to_recipients(recipients, _), do: recipients
+
   def maybe_notify_mentioned_recipients(
         recipients,
         %Activity{data: %{"to" => _to, "type" => type} = data} = activity
@@ -502,6 +504,17 @@ defmodule Pleroma.Web.CommonAPI.Utils do
 
   def maybe_notify_subscribers(recipients, _), do: recipients
 
+  def maybe_notify_followers(recipients, %Activity{data: %{"type" => "Move"}} = activity) do
+    with %User{} = user <- User.get_cached_by_ap_id(activity.actor) do
+      user
+      |> User.get_followers()
+      |> Enum.map(& &1.ap_id)
+      |> Enum.concat(recipients)
+    end
+  end
+
+  def maybe_notify_followers(recipients, _), do: recipients
+
   def maybe_extract_mentions(%{"tag" => tag}) do
     tag
     |> Enum.filter(fn x -> is_map(x) && x["type"] == "Mention" end)

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

@@ -152,6 +152,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
         :hide_favorites,
         :show_role,
         :skip_thread_containment,
+        :allow_following_move,
         :discoverable
       ]
       |> Enum.reduce(%{}, fn key, acc ->

lib/pleroma/web/mastodon_api/views/account_view.ex

@@ -162,6 +162,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
     |> maybe_put_chat_token(user, opts[:for], opts)
     |> maybe_put_activation_status(user, opts[:for])
     |> maybe_put_follow_requests_count(user, opts[:for])
+    |> maybe_put_allow_following_move(user, opts[:for])
     |> maybe_put_unread_conversation_count(user, opts[:for])
   end
 
@@ -238,6 +239,12 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
 
   defp maybe_put_notification_settings(data, _, _), do: data
 
+  defp maybe_put_allow_following_move(data, %User{id: user_id} = user, %User{id: user_id}) do
+    Kernel.put_in(data, [:pleroma, :allow_following_move], user.allow_following_move)
+  end
+
+  defp maybe_put_allow_following_move(data, _, _), do: data
+
   defp maybe_put_activation_status(data, user, %User{is_admin: true}) do
     Kernel.put_in(data, [:pleroma, :deactivated], user.deactivated)
   end

lib/pleroma/web/mastodon_api/views/notification_view.ex

@@ -37,32 +37,24 @@ defmodule Pleroma.Web.MastodonAPI.NotificationView do
       }
 
       case mastodon_type do
-        "mention" ->
-          response
-          |> Map.merge(%{
-            status: StatusView.render("show.json", %{activity: activity, for: user})
-          })
-
-        "favourite" ->
-          response
-          |> Map.merge(%{
-            status: StatusView.render("show.json", %{activity: parent_activity, for: user})
-          })
-
-        "reblog" ->
-          response
-          |> Map.merge(%{
-            status: StatusView.render("show.json", %{activity: parent_activity, for: user})
-          })
-
-        "follow" ->
-          response
-
-        _ ->
-          nil
+        "mention" -> put_status(response, activity, user)
+        "favourite" -> put_status(response, parent_activity, user)
+        "reblog" -> put_status(response, parent_activity, user)
+        "move" -> put_target(response, activity, user)
+        "follow" -> response
+        _ -> nil
       end
     else
       _ -> nil
     end
   end
+
+  defp put_status(response, activity, user) do
+    Map.put(response, :status, StatusView.render("show.json", %{activity: activity, for: user}))
+  end
+
+  defp put_target(response, activity, user) do
+    target = User.get_cached_by_ap_id(activity.data["target"])
+    Map.put(response, :target, AccountView.render("show.json", %{user: target, for: user}))
+  end
 end

lib/pleroma/web/push/impl.ex

@@ -16,7 +16,7 @@ defmodule Pleroma.Web.Push.Impl do
   require Logger
   import Ecto.Query
 
-  @types ["Create", "Follow", "Announce", "Like"]
+  @types ["Create", "Follow", "Announce", "Like", "Move"]
 
   @doc "Performs sending notifications for user subscriptions"
   @spec perform(Notification.t()) :: list(any) | :error

lib/pleroma/workers/background_worker.ex

@@ -71,4 +71,11 @@ defmodule Pleroma.Workers.BackgroundWorker do
     activity = Activity.get_by_id(activity_id)
     Pleroma.Web.RichMedia.Helpers.perform(:fetch, activity)
   end
+
+  def perform(%{"op" => "move_following", "origin_id" => origin_id, "target_id" => target_id}, _) do
+    origin = User.get_cached_by_id(origin_id)
+    target = User.get_cached_by_id(target_id)
+
+    Pleroma.FollowingRelationship.move_following(origin, target)
+  end
 end