X-Git-Url: https://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Ffollowing_relationship.ex;h=42db9463db6508d6400af3fca8221c58e118a61e;hb=db60640c5b91cd1ce2756565835673fa57afe082;hp=dd16961364ad20671b9b3477077eda5b35c990f7;hpb=3c78e5f3275494b3dc4546e65f19eb3a3c97033a;p=akkoma

diff --git a/lib/pleroma/following_relationship.ex b/lib/pleroma/following_relationship.ex
index dd1696136..42db9463d 100644
--- a/lib/pleroma/following_relationship.ex
+++ b/lib/pleroma/following_relationship.ex
@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.FollowingRelationship do
@@ -8,12 +8,14 @@ defmodule Pleroma.FollowingRelationship do
   import Ecto.Changeset
   import Ecto.Query
 
+  alias Ecto.Changeset
   alias FlakeId.Ecto.CompatType
+  alias Pleroma.FollowingRelationship.State
   alias Pleroma.Repo
   alias Pleroma.User
 
   schema "following_relationships" do
-    field(:state, :string, default: "accept")
+    field(:state, State, default: :follow_pending)
 
     belongs_to(:follower, User, type: CompatType)
     belongs_to(:following, User, type: CompatType)
@@ -21,12 +23,29 @@ defmodule Pleroma.FollowingRelationship do
     timestamps()
   end
 
+  @doc "Returns underlying integer code for state atom"
+  def state_int_code(state_atom), do: State.__enum_map__() |> Keyword.fetch!(state_atom)
+
+  def accept_state_code, do: state_int_code(:follow_accept)
+
   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])
+    |> unique_constraint(:follower_id,
+      name: :following_relationships_follower_id_following_id_index
+    )
+    |> validate_not_self_relationship()
+  end
+
+  def state_to_enum(state) when state in ["pending", "accept", "reject"] do
+    String.to_existing_atom("follow_#{state}")
+  end
+
+  def state_to_enum(state) do
+    raise "State is not convertible to Pleroma.FollowingRelationship.State: #{state}"
   end
 
   def get(%User{} = follower, %User{} = following) do
@@ -35,7 +54,7 @@ defmodule Pleroma.FollowingRelationship do
     |> Repo.one()
   end
 
-  def update(follower, following, "reject"), do: unfollow(follower, following)
+  def update(follower, following, :follow_reject), do: unfollow(follower, following)
 
   def update(%User{} = follower, %User{} = following, state) do
     case get(follower, following) do
@@ -43,23 +62,47 @@ defmodule Pleroma.FollowingRelationship do
         follow(follower, following, state)
 
       following_relationship ->
-        following_relationship
-        |> cast(%{state: state}, [:state])
-        |> validate_required([:state])
-        |> Repo.update()
+        with {:ok, _following_relationship} <-
+               following_relationship
+               |> cast(%{state: state}, [:state])
+               |> validate_required([:state])
+               |> Repo.update() do
+          after_update(state, follower, following)
+        end
     end
   end
 
-  def follow(%User{} = follower, %User{} = following, state \\ "accept") do
-    %__MODULE__{}
-    |> changeset(%{follower: follower, following: following, state: state})
-    |> Repo.insert(on_conflict: :nothing)
+  def follow(%User{} = follower, %User{} = following, state \\ :follow_accept) do
+    with {:ok, _following_relationship} <-
+           %__MODULE__{}
+           |> changeset(%{follower: follower, following: following, state: state})
+           |> Repo.insert(on_conflict: :nothing) do
+      after_update(state, follower, following)
+    end
   end
 
   def unfollow(%User{} = follower, %User{} = following) do
     case get(follower, following) do
-      %__MODULE__{} = following_relationship -> Repo.delete(following_relationship)
-      _ -> {:ok, nil}
+      %__MODULE__{} = following_relationship ->
+        with {:ok, _following_relationship} <- Repo.delete(following_relationship) do
+          after_update(:unfollow, follower, following)
+        end
+
+      _ ->
+        {:ok, nil}
+    end
+  end
+
+  defp after_update(state, %User{} = follower, %User{} = following) do
+    with {:ok, following} <- User.update_follower_count(following),
+         {:ok, follower} <- User.update_following_count(follower) do
+      Pleroma.Web.Streamer.stream("follow_relationship", %{
+        state: state,
+        following: following,
+        follower: follower
+      })
+
+      {:ok, follower, following}
     end
   end
 
@@ -69,6 +112,33 @@ defmodule Pleroma.FollowingRelationship do
     |> Repo.aggregate(:count, :id)
   end
 
+  def followers_query(%User{} = user) do
+    __MODULE__
+    |> join(:inner, [r], u in User, on: r.follower_id == u.id)
+    |> where([r], r.following_id == ^user.id)
+    |> where([r], r.state == ^:follow_accept)
+  end
+
+  def followers_ap_ids(user, from_ap_ids \\ nil)
+
+  def followers_ap_ids(_, []), do: []
+
+  def followers_ap_ids(%User{} = user, from_ap_ids) do
+    query =
+      user
+      |> followers_query()
+      |> select([r, u], u.ap_id)
+
+    query =
+      if from_ap_ids do
+        where(query, [r, u], u.ap_id in ^from_ap_ids)
+      else
+        query
+      end
+
+    Repo.all(query)
+  end
+
   def following_count(%User{id: nil}), do: 0
 
   def following_count(%User{} = user) do
@@ -80,24 +150,35 @@ defmodule Pleroma.FollowingRelationship do
   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.state == ^:follow_pending)
     |> where([r], r.following_id == ^id)
+    |> where([r, f], f.is_active == true)
     |> 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")
+    |> where(follower_id: ^follower_id, following_id: ^followed_id, state: ^:follow_accept)
     |> Repo.exists?()
   end
 
+  def following_query(%User{} = user) do
+    __MODULE__
+    |> join(:inner, [r], u in User, on: r.following_id == u.id)
+    |> where([r], r.follower_id == ^user.id)
+    |> where([r], r.state == ^:follow_accept)
+  end
+
+  def outgoing_pending_follow_requests_query(%User{} = follower) do
+    __MODULE__
+    |> where([r], r.follower_id == ^follower.id)
+    |> where([r], r.state == ^:follow_pending)
+  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")
+      following_query(user)
       |> select([r, u], u.follower_address)
       |> Repo.all()
 
@@ -113,12 +194,13 @@ defmodule Pleroma.FollowingRelationship do
     |> join(:inner, [r], f in assoc(r, :follower))
     |> where(following_id: ^origin.id)
     |> where([r, f], f.allow_following_move == true)
+    |> where([r, f], f.local == true)
     |> limit(50)
     |> preload([:follower])
     |> Repo.all()
     |> Enum.map(fn following_relationship ->
-      Repo.delete(following_relationship)
       Pleroma.Web.CommonAPI.follow(following_relationship.follower, target)
+      Pleroma.Web.CommonAPI.unfollow(following_relationship.follower, origin)
     end)
     |> case do
       [] ->
@@ -135,12 +217,8 @@ defmodule Pleroma.FollowingRelationship do
         target_users
       )
       when is_list(source_users) and is_list(target_users) do
-    get_bin_ids = fn user ->
-      with {:ok, bin_id} <- CompatType.dump(user.id), do: bin_id
-    end
-
-    source_user_ids = Enum.map(source_users, &get_bin_ids.(&1))
-    target_user_ids = Enum.map(target_users, &get_bin_ids.(&1))
+    source_user_ids = User.binary_id(source_users)
+    target_user_ids = User.binary_id(target_users)
 
     __MODULE__
     |> where(
@@ -155,4 +233,44 @@ defmodule Pleroma.FollowingRelationship do
     )
     |> Repo.all()
   end
+
+  def find(following_relationships, follower, following) do
+    Enum.find(following_relationships, fn
+      fr -> fr.follower_id == follower.id and fr.following_id == following.id
+    end)
+  end
+
+  defp validate_not_self_relationship(%Changeset{} = changeset) do
+    changeset
+    |> validate_follower_id_following_id_inequality()
+    |> validate_following_id_follower_id_inequality()
+  end
+
+  defp validate_follower_id_following_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :follower_id, fn _, follower_id ->
+      if follower_id == get_field(changeset, :following_id) do
+        [source_id: "can't be equal to following_id"]
+      else
+        []
+      end
+    end)
+  end
+
+  defp validate_following_id_follower_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :following_id, fn _, following_id ->
+      if following_id == get_field(changeset, :follower_id) do
+        [target_id: "can't be equal to follower_id"]
+      else
+        []
+      end
+    end)
+  end
+
+  @spec following_ap_ids(User.t()) :: [String.t()]
+  def following_ap_ids(%User{} = user) do
+    user
+    |> following_query()
+    |> select([r, u], u.ap_id)
+    |> Repo.all()
+  end
 end