summaryrefslogtreecommitdiff
path: root/lib/pleroma/web/pleroma_api/controllers/chat_controller.ex
blob: ea0921c77f716261728737b37ea778c438be494d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.PleromaAPI.ChatController do
  use Pleroma.Web, :controller

  alias Pleroma.Activity
  alias Pleroma.Chat
  alias Pleroma.Chat.MessageReference
  alias Pleroma.Object
  alias Pleroma.Pagination
  alias Pleroma.Plugs.OAuthScopesPlug
  alias Pleroma.Repo
  alias Pleroma.User
  alias Pleroma.Web.CommonAPI
  alias Pleroma.Web.PleromaAPI.Chat.MessageReferenceView
  alias Pleroma.Web.PleromaAPI.ChatView

  import Ecto.Query

  action_fallback(Pleroma.Web.MastodonAPI.FallbackController)

  plug(
    OAuthScopesPlug,
    %{scopes: ["write:chats"]}
    when action in [
           :post_chat_message,
           :create,
           :mark_as_read,
           :mark_message_as_read,
           :delete_message
         ]
  )

  plug(
    OAuthScopesPlug,
    %{scopes: ["read:chats"]} when action in [:messages, :index, :show]
  )

  plug(OpenApiSpex.Plug.CastAndValidate, render_error: Pleroma.Web.ApiSpec.RenderError)

  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.ChatOperation

  def delete_message(%{assigns: %{user: %{id: user_id} = user}} = conn, %{
        message_id: message_id,
        id: chat_id
      }) do
    with %MessageReference{} = cm_ref <-
           MessageReference.get_by_id(message_id),
         ^chat_id <- cm_ref.chat_id |> to_string(),
         %Chat{user_id: ^user_id} <- Chat.get_by_id(chat_id),
         {:ok, _} <- remove_or_delete(cm_ref, user) do
      conn
      |> put_view(MessageReferenceView)
      |> render("show.json", chat_message_reference: cm_ref)
    else
      _e ->
        {:error, :could_not_delete}
    end
  end

  defp remove_or_delete(
         %{object: %{data: %{"actor" => actor, "id" => id}}},
         %{ap_id: actor} = user
       ) do
    with %Activity{} = activity <- Activity.get_create_by_object_ap_id(id) do
      CommonAPI.delete(activity.id, user)
    end
  end

  defp remove_or_delete(cm_ref, _) do
    cm_ref
    |> MessageReference.delete()
  end

  def post_chat_message(
        %{body_params: params, assigns: %{user: %{id: user_id} = user}} = conn,
        %{
          id: id
        }
      ) do
    with %Chat{} = chat <- Repo.get_by(Chat, id: id, user_id: user_id),
         %User{} = recipient <- User.get_cached_by_ap_id(chat.recipient),
         {:ok, activity} <-
           CommonAPI.post_chat_message(user, recipient, params[:content],
             media_id: params[:media_id]
           ),
         message <- Object.normalize(activity, false),
         cm_ref <- MessageReference.for_chat_and_object(chat, message) do
      conn
      |> put_view(MessageReferenceView)
      |> render("show.json", chat_message_reference: cm_ref)
    else
      {:reject, message} ->
        conn
        |> put_status(:unprocessable_entity)
        |> json(%{error: message})

      {:error, message} ->
        conn
        |> put_status(:bad_request)
        |> json(%{error: message})
    end
  end

  def mark_message_as_read(%{assigns: %{user: %{id: user_id}}} = conn, %{
        id: chat_id,
        message_id: message_id
      }) do
    with %MessageReference{} = cm_ref <-
           MessageReference.get_by_id(message_id),
         ^chat_id <- cm_ref.chat_id |> to_string(),
         %Chat{user_id: ^user_id} <- Chat.get_by_id(chat_id),
         {:ok, cm_ref} <- MessageReference.mark_as_read(cm_ref) do
      conn
      |> put_view(MessageReferenceView)
      |> render("show.json", chat_message_reference: cm_ref)
    end
  end

  def mark_as_read(
        %{
          body_params: %{last_read_id: last_read_id},
          assigns: %{user: %{id: user_id}}
        } = conn,
        %{id: id}
      ) do
    with %Chat{} = chat <- Repo.get_by(Chat, id: id, user_id: user_id),
         {_n, _} <-
           MessageReference.set_all_seen_for_chat(chat, last_read_id) do
      conn
      |> put_view(ChatView)
      |> render("show.json", chat: chat)
    end
  end

  def messages(%{assigns: %{user: %{id: user_id}}} = conn, %{id: id} = params) do
    with %Chat{} = chat <- Repo.get_by(Chat, id: id, user_id: user_id) do
      cm_refs =
        chat
        |> MessageReference.for_chat_query()
        |> Pagination.fetch_paginated(params)

      conn
      |> put_view(MessageReferenceView)
      |> render("index.json", chat_message_references: cm_refs)
    else
      _ ->
        conn
        |> put_status(:not_found)
        |> json(%{error: "not found"})
    end
  end

  def index(%{assigns: %{user: %{id: user_id} = user}} = conn, _params) do
    blocked_ap_ids = User.blocked_users_ap_ids(user)

    chats =
      from(c in Chat,
        where: c.user_id == ^user_id,
        where: c.recipient not in ^blocked_ap_ids,
        order_by: [desc: c.updated_at],
        inner_join: u in User,
        on: u.ap_id == c.recipient
      )
      |> Repo.all()

    conn
    |> put_view(ChatView)
    |> render("index.json", chats: chats)
  end

  def create(%{assigns: %{user: user}} = conn, params) do
    with %User{ap_id: recipient} <- User.get_by_id(params[:id]),
         {:ok, %Chat{} = chat} <- Chat.get_or_create(user.id, recipient) do
      conn
      |> put_view(ChatView)
      |> render("show.json", chat: chat)
    end
  end

  def show(%{assigns: %{user: user}} = conn, params) do
    with %Chat{} = chat <- Repo.get_by(Chat, user_id: user.id, id: params[:id]) do
      conn
      |> put_view(ChatView)
      |> render("show.json", chat: chat)
    end
  end
end