148 lines
4.0 KiB
Elixir
148 lines
4.0 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.FollowingRelationship do
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use Ecto.Schema
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import Ecto.Changeset
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import Ecto.Query
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alias FlakeId.Ecto.CompatType
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alias Pleroma.Repo
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alias Pleroma.User
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schema "following_relationships" do
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field(:state, :string, default: "accept")
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belongs_to(:follower, User, type: CompatType)
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belongs_to(:following, User, type: CompatType)
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timestamps()
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end
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def changeset(%__MODULE__{} = following_relationship, attrs) do
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following_relationship
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|> cast(attrs, [:state])
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|> put_assoc(:follower, attrs.follower)
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|> put_assoc(:following, attrs.following)
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|> validate_required([:state, :follower, :following])
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end
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def get(%User{} = follower, %User{} = following) do
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following_relationship =
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__MODULE__
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|> where(follower_id: ^follower.id, following_id: ^following.id)
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|> Repo.one()
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case {following_relationship, following.local} do
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{nil, false} ->
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case Pleroma.Web.ActivityPub.Utils.fetch_latest_follow(follower, following) do
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%{data: %{"state" => state}} when state in ["pending", "accept"] ->
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%{state: state}
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_ ->
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nil
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end
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{following_relationship, _} ->
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following_relationship
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end
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end
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def update(follower, following, "reject"), do: unfollow(follower, following)
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def update(%User{} = follower, %User{} = following, state) do
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case get(follower, following) do
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nil ->
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follow(follower, following, state)
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following_relationship ->
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following_relationship
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|> cast(%{state: state}, [:state])
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|> validate_required([:state])
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|> Repo.update()
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end
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end
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def follow(%User{} = follower, %User{} = following, state \\ "accept") do
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%__MODULE__{}
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|> changeset(%{follower: follower, following: following, state: state})
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|> Repo.insert(on_conflict: :nothing)
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end
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def unfollow(%User{} = follower, %User{} = following) do
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case get(follower, following) do
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%__MODULE__{} = following_relationship -> Repo.delete(following_relationship)
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_ -> {:ok, nil}
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end
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end
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def follower_count(%User{} = user) do
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%{followers: user, deactivated: false}
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|> User.Query.build()
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|> Repo.aggregate(:count, :id)
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end
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def following_count(%User{id: nil}), do: 0
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def following_count(%User{} = user) do
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%{friends: user, deactivated: false}
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|> User.Query.build()
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|> Repo.aggregate(:count, :id)
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end
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def get_follow_requests(%User{id: id}) do
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__MODULE__
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|> join(:inner, [r], f in assoc(r, :follower))
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|> where([r], r.state == "pending")
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|> where([r], r.following_id == ^id)
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|> select([r, f], f)
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|> Repo.all()
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end
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def following?(%User{id: follower_id}, %User{id: followed_id}) do
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__MODULE__
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|> where(follower_id: ^follower_id, following_id: ^followed_id, state: "accept")
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|> Repo.exists?()
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end
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def following(%User{} = user) do
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following =
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__MODULE__
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|> join(:inner, [r], u in User, on: r.following_id == u.id)
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|> where([r], r.follower_id == ^user.id)
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|> where([r], r.state == "accept")
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|> select([r, u], u.follower_address)
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|> Repo.all()
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if not user.local or user.invisible do
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following
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else
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[user.follower_address | following]
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end
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end
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def move_following(origin, target) do
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__MODULE__
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|> join(:inner, [r], f in assoc(r, :follower))
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|> where(following_id: ^origin.id)
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|> where([r, f], f.allow_following_move == true)
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|> limit(50)
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|> preload([:follower])
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|> Repo.all()
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|> Enum.map(fn following_relationship ->
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Repo.delete(following_relationship)
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Pleroma.Web.CommonAPI.follow(following_relationship.follower, target)
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end)
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|> case do
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[] ->
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User.update_follower_count(origin)
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:ok
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_ ->
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move_following(origin, target)
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end
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end
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end
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