git.squeep.com Git - akkoma/blob - lib/pleroma/web/common_api/activity_draft.ex

   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.CommonAPI.ActivityDraft do
   6   alias Pleroma.Activity
   7   alias Pleroma.Conversation.Participation
   8   alias Pleroma.Web.CommonAPI
   9   alias Pleroma.Web.CommonAPI.Utils
  10
  11   import Pleroma.Web.Gettext
  12
  13   defstruct valid?: true,
  14             errors: [],
  15             user: nil,
  16             params: %{},
  17             status: nil,
  18             summary: nil,
  19             full_payload: nil,
  20             attachments: [],
  21             in_reply_to: nil,
  22             in_reply_to_conversation: nil,
  23             visibility: nil,
  24             expires_at: nil,
  25             poll: nil,
  26             emoji: %{},
  27             content_html: nil,
  28             mentions: [],
  29             tags: [],
  30             to: [],
  31             cc: [],
  32             context: nil,
  33             sensitive: false,
  34             object: nil,
  35             preview?: false,
  36             changes: %{}
  37
  38   def create(user, params) do
  39     %__MODULE__{user: user}
  40     |> put_params(params)
  41     |> status()
  42     |> summary()
  43     |> with_valid(&attachments/1)
  44     |> full_payload()
  45     |> expires_at()
  46     |> poll()
  47     |> with_valid(&in_reply_to/1)
  48     |> with_valid(&in_reply_to_conversation/1)
  49     |> with_valid(&visibility/1)
  50     |> content()
  51     |> with_valid(&to_and_cc/1)
  52     |> with_valid(&context/1)
  53     |> sensitive()
  54     |> with_valid(&object/1)
  55     |> preview?()
  56     |> with_valid(&changes/1)
  57     |> validate()
  58   end
  59
  60   defp put_params(draft, params) do
  61     params = Map.put_new(params, :in_reply_to_status_id, params[:in_reply_to_id])
  62     %__MODULE__{draft | params: params}
  63   end
  64
  65   defp status(%{params: %{status: status}} = draft) do
  66     %__MODULE__{draft | status: String.trim(status)}
  67   end
  68
  69   defp summary(%{params: params} = draft) do
  70     %__MODULE__{draft | summary: Map.get(params, :spoiler_text, "")}
  71   end
  72
  73   defp full_payload(%{status: status, summary: summary} = draft) do
  74     full_payload = String.trim(status <> summary)
  75
  76     case Utils.validate_character_limit(full_payload, draft.attachments) do
  77       :ok -> %__MODULE__{draft | full_payload: full_payload}
  78       {:error, message} -> add_error(draft, message)
  79     end
  80   end
  81
  82   defp attachments(%{params: params} = draft) do
  83     attachments = Utils.attachments_from_ids(params)
  84     %__MODULE__{draft | attachments: attachments}
  85   end
  86
  87   defp in_reply_to(%{params: %{in_reply_to_status_id: ""}} = draft), do: draft
  88
  89   defp in_reply_to(%{params: %{in_reply_to_status_id: id}} = draft) when is_binary(id) do
  90     %__MODULE__{draft | in_reply_to: Activity.get_by_id(id)}
  91   end
  92
  93   defp in_reply_to(%{params: %{in_reply_to_status_id: %Activity{} = in_reply_to}} = draft) do
  94     %__MODULE__{draft | in_reply_to: in_reply_to}
  95   end
  96
  97   defp in_reply_to(draft), do: draft
  98
  99   defp in_reply_to_conversation(draft) do
 100     in_reply_to_conversation = Participation.get(draft.params[:in_reply_to_conversation_id])
 101     %__MODULE__{draft | in_reply_to_conversation: in_reply_to_conversation}
 102   end
 103
 104   defp visibility(%{params: params} = draft) do
 105     case CommonAPI.get_visibility(params, draft.in_reply_to, draft.in_reply_to_conversation) do
 106       {visibility, "direct"} when visibility != "direct" ->
 107         add_error(draft, dgettext("errors", "The message visibility must be direct"))
 108
 109       {visibility, _} ->
 110         %__MODULE__{draft | visibility: visibility}
 111     end
 112   end
 113
 114   defp expires_at(draft) do
 115     case CommonAPI.check_expiry_date(draft.params[:expires_in]) do
 116       {:ok, expires_at} -> %__MODULE__{draft | expires_at: expires_at}
 117       {:error, message} -> add_error(draft, message)
 118     end
 119   end
 120
 121   defp poll(draft) do
 122     case Utils.make_poll_data(draft.params) do
 123       {:ok, {poll, poll_emoji}} ->
 124         %__MODULE__{draft | poll: poll, emoji: Map.merge(draft.emoji, poll_emoji)}
 125
 126       {:error, message} ->
 127         add_error(draft, message)
 128     end
 129   end
 130
 131   defp content(draft) do
 132     {content_html, mentions, tags} =
 133       Utils.make_content_html(
 134         draft.status,
 135         draft.attachments,
 136         draft.params,
 137         draft.visibility
 138       )
 139
 140     %__MODULE__{draft | content_html: content_html, mentions: mentions, tags: tags}
 141   end
 142
 143   defp to_and_cc(draft) do
 144     addressed_users =
 145       draft.mentions
 146       |> Enum.map(fn {_, mentioned_user} -> mentioned_user.ap_id end)
 147       |> Utils.get_addressed_users(draft.params[:to])
 148
 149     {to, cc} =
 150       Utils.get_to_and_cc(
 151         draft.user,
 152         addressed_users,
 153         draft.in_reply_to,
 154         draft.visibility,
 155         draft.in_reply_to_conversation
 156       )
 157
 158     %__MODULE__{draft | to: to, cc: cc}
 159   end
 160
 161   defp context(draft) do
 162     context = Utils.make_context(draft.in_reply_to, draft.in_reply_to_conversation)
 163     %__MODULE__{draft | context: context}
 164   end
 165
 166   defp sensitive(draft) do
 167     sensitive = draft.params[:sensitive] || Enum.member?(draft.tags, {"#nsfw", "nsfw"})
 168     %__MODULE__{draft | sensitive: sensitive}
 169   end
 170
 171   defp object(draft) do
 172     emoji = Map.merge(Pleroma.Emoji.Formatter.get_emoji_map(draft.full_payload), draft.emoji)
 173
 174     object =
 175       Utils.make_note_data(
 176         draft.user.ap_id,
 177         draft.to,
 178         draft.context,
 179         draft.content_html,
 180         draft.attachments,
 181         draft.in_reply_to,
 182         draft.tags,
 183         draft.summary,
 184         draft.cc,
 185         draft.sensitive,
 186         draft.poll
 187       )
 188       |> Map.put("emoji", emoji)
 189       |> Map.put("source", draft.status)
 190
 191     %__MODULE__{draft | object: object}
 192   end
 193
 194   defp preview?(draft) do
 195     preview? = Pleroma.Web.ControllerHelper.truthy_param?(draft.params[:preview])
 196     %__MODULE__{draft | preview?: preview?}
 197   end
 198
 199   defp changes(draft) do
 200     direct? = draft.visibility == "direct"
 201     additional = %{"cc" => draft.cc, "directMessage" => direct?}
 202
 203     additional =
 204       case draft.expires_at do
 205         %DateTime{} = expires_at -> Map.put(additional, "expires_at", expires_at)
 206         _ -> additional
 207       end
 208
 209     changes =
 210       %{
 211         to: draft.to,
 212         actor: draft.user,
 213         context: draft.context,
 214         object: draft.object,
 215         additional: additional
 216       }
 217       |> Utils.maybe_add_list_data(draft.user, draft.visibility)
 218
 219     %__MODULE__{draft | changes: changes}
 220   end
 221
 222   defp with_valid(%{valid?: true} = draft, func), do: func.(draft)
 223   defp with_valid(draft, _func), do: draft
 224
 225   defp add_error(draft, message) do
 226     %__MODULE__{draft | valid?: false, errors: [message | draft.errors]}
 227   end
 228
 229   defp validate(%{valid?: true} = draft), do: {:ok, draft}
 230   defp validate(%{errors: [message | _]}), do: {:error, message}
 231 end