120 lines
		
	
	
	
		
			3.5 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			120 lines
		
	
	
	
		
			3.5 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
| # Pleroma: A lightweight social networking server
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| # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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| # SPDX-License-Identifier: AGPL-3.0-only
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| 
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| defmodule Pleroma.Web.MastodonAPI.SuggestionController do
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|   use Pleroma.Web, :controller
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|   import Ecto.Query
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|   alias Pleroma.FollowingRelationship
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|   alias Pleroma.User
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|   alias Pleroma.UserRelationship
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| 
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|   require Logger
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| 
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|   plug(Pleroma.Web.ApiSpec.CastAndValidate)
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|   plug(Pleroma.Web.Plugs.OAuthScopesPlug, %{scopes: ["read"]} when action in [:index, :index2])
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|   plug(Pleroma.Web.Plugs.OAuthScopesPlug, %{scopes: ["write"]} when action in [:dismiss])
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| 
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|   def open_api_operation(action) do
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|     operation = String.to_existing_atom("#{action}_operation")
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|     apply(__MODULE__, operation, [])
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|   end
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| 
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|   def index_operation do
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|     %OpenApiSpex.Operation{
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|       tags: ["Suggestions"],
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|       summary: "Follow suggestions (Not implemented)",
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|       operationId: "SuggestionController.index",
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|       responses: %{
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|         200 => Pleroma.Web.ApiSpec.Helpers.empty_array_response()
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|       }
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|     }
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|   end
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| 
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|   def index2_operation do
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|     %OpenApiSpex.Operation{
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|       tags: ["Suggestions"],
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|       summary: "Follow suggestions",
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|       operationId: "SuggestionController.index2",
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|       responses: %{
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|         200 => Pleroma.Web.ApiSpec.Helpers.empty_array_response()
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|       }
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|     }
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|   end
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| 
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|   def dismiss_operation do
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|     %OpenApiSpex.Operation{
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|       tags: ["Suggestions"],
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|       summary: "Remove a suggestion",
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|       operationId: "SuggestionController.dismiss",
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|       parameters: [
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|         OpenApiSpex.Operation.parameter(
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|           :account_id,
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|           :path,
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|           %OpenApiSpex.Schema{type: :string},
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|           "Account to dismiss",
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|           required: true
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|         )
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|       ],
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|       responses: %{
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|         200 => Pleroma.Web.ApiSpec.Helpers.empty_object_response()
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|       }
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|     }
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|   end
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| 
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|   @doc "GET /api/v1/suggestions"
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|   def index(conn, params),
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|     do: Pleroma.Web.MastodonAPI.MastodonAPIController.empty_array(conn, params)
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| 
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|   @doc "GET /api/v2/suggestions"
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|   def index2(%{assigns: %{user: user}} = conn, params) do
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|     limit = Map.get(params, :limit, 40) |> min(80)
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| 
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|     users =
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|       %{is_suggested: true, invisible: false, limit: limit}
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|       |> User.Query.build()
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|       |> exclude_user(user)
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|       |> exclude_relationships(user, [:block, :mute, :suggestion_dismiss])
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|       |> exclude_following(user)
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|       |> Pleroma.Repo.all()
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| 
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|     render(conn, "index.json", %{
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|       users: users,
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|       source: :staff,
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|       for: user,
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|       skip_visibility_check: true
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|     })
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|   end
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| 
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|   defp exclude_user(query, %User{id: user_id}) do
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|     where(query, [u], u.id != ^user_id)
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|   end
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| 
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|   defp exclude_relationships(query, %User{id: user_id}, relationship_types) do
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|     query
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|     |> join(:left, [u], r in UserRelationship,
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|       as: :user_relationships,
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|       on:
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|         r.target_id == u.id and r.source_id == ^user_id and
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|           r.relationship_type in ^relationship_types
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|     )
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|     |> where([user_relationships: r], is_nil(r.target_id))
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|   end
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| 
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|   defp exclude_following(query, %User{id: user_id}) do
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|     query
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|     |> join(:left, [u], r in FollowingRelationship,
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|       as: :following_relationships,
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|       on: r.following_id == u.id and r.follower_id == ^user_id and r.state == :follow_accept
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|     )
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|     |> where([following_relationships: r], is_nil(r.following_id))
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|   end
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| 
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|   @doc "DELETE /api/v1/suggestions/:account_id"
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|   def dismiss(%{assigns: %{user: source}} = conn, %{account_id: user_id}) do
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|     with %User{} = target <- User.get_cached_by_id(user_id),
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|          {:ok, _} <- UserRelationship.create(:suggestion_dismiss, source, target) do
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|       json(conn, %{})
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|     end
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|   end
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| end
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