1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.Web.CommonAPI.ActivityDraft do
7 alias Pleroma.Conversation.Participation
9 alias Pleroma.Web.ActivityPub.Builder
10 alias Pleroma.Web.ActivityPub.Visibility
11 alias Pleroma.Web.CommonAPI
12 alias Pleroma.Web.CommonAPI.Utils
14 import Pleroma.Web.Gettext
15 import Pleroma.Web.Utils.Guards, only: [not_empty_string: 1]
17 @type t :: %__MODULE__{}
19 defstruct valid?: true,
28 in_reply_to_conversation: nil,
45 def new(user, params) do
46 %__MODULE__{user: user}
50 def create(user, params) do
55 |> with_valid(&attachments/1)
59 |> with_valid(&in_reply_to/1)
60 |> with_valid(&in_reply_to_conversation/1)
61 |> with_valid("e_post/1)
62 |> with_valid(&visibility/1)
63 |> with_valid("ing_visibility/1)
65 |> with_valid(&to_and_cc/1)
66 |> with_valid(&context/1)
68 |> with_valid(&object/1)
70 |> with_valid(&changes/1)
74 def listen(user, params) do
81 |> with_valid(&changes/1)
85 defp listen_object(draft) do
88 |> Map.take([:album, :artist, :title, :length, :externalLink])
89 |> Map.new(fn {key, value} -> {to_string(key), value} end)
90 |> Map.put("type", "Audio")
91 |> Map.put("to", draft.to)
92 |> Map.put("cc", draft.cc)
93 |> Map.put("actor", draft.user.ap_id)
95 %__MODULE__{draft | object: object}
98 defp put_params(draft, params) do
99 params = Map.put_new(params, :in_reply_to_status_id, params[:in_reply_to_id])
100 %__MODULE__{draft | params: params}
103 defp status(%{params: %{status: status}} = draft) do
104 %__MODULE__{draft | status: String.trim(status)}
107 defp summary(%{params: params} = draft) do
108 %__MODULE__{draft | summary: Map.get(params, :spoiler_text, "")}
111 defp full_payload(%{status: status, summary: summary} = draft) do
112 full_payload = String.trim(status <> summary)
114 case Utils.validate_character_limit(full_payload, draft.attachments) do
115 :ok -> %__MODULE__{draft | full_payload: full_payload}
116 {:error, message} -> add_error(draft, message)
120 defp attachments(%{params: params} = draft) do
121 attachments = Utils.attachments_from_ids(params, draft.user)
122 draft = %__MODULE__{draft | attachments: attachments}
124 case Utils.validate_attachments_count(attachments) do
126 {:error, message} -> add_error(draft, message)
130 defp in_reply_to(%{params: %{in_reply_to_status_id: ""}} = draft), do: draft
132 defp in_reply_to(%{params: %{in_reply_to_status_id: id}} = draft) when is_binary(id) do
133 %__MODULE__{draft | in_reply_to: Activity.get_by_id(id)}
136 defp in_reply_to(%{params: %{in_reply_to_status_id: %Activity{} = in_reply_to}} = draft) do
137 %__MODULE__{draft | in_reply_to: in_reply_to}
140 defp in_reply_to(draft), do: draft
142 defp quote_post(%{params: %{quote_id: id}} = draft) when not_empty_string(id) do
143 case Activity.get_by_id_with_object(id) do
144 %Activity{} = activity ->
145 %__MODULE__{draft | quote_post: activity}
152 defp quote_post(draft), do: draft
154 defp in_reply_to_conversation(draft) do
155 in_reply_to_conversation = Participation.get(draft.params[:in_reply_to_conversation_id])
156 %__MODULE__{draft | in_reply_to_conversation: in_reply_to_conversation}
159 defp visibility(%{params: params} = draft) do
160 case CommonAPI.get_visibility(params, draft.in_reply_to, draft.in_reply_to_conversation) do
161 {visibility, "direct"} when visibility != "direct" ->
162 add_error(draft, dgettext("errors", "The message visibility must be direct"))
165 %__MODULE__{draft | visibility: visibility}
169 defp can_quote?(_draft, _object, visibility) when visibility in ~w(public unlisted local) do
173 defp can_quote?(draft, object, "private") do
174 draft.user.ap_id == object.data["actor"]
177 defp can_quote?(_, _, _) do
181 defp quoting_visibility(%{quote_post: %Activity{}} = draft) do
182 with %Object{} = object <- Object.normalize(draft.quote_post, fetch: false),
183 true <- can_quote?(draft, object, Visibility.get_visibility(object)) do
186 _ -> add_error(draft, dgettext("errors", "Cannot quote private message"))
190 defp quoting_visibility(draft), do: draft
192 defp expires_at(draft) do
193 case CommonAPI.check_expiry_date(draft.params[:expires_in]) do
194 {:ok, expires_at} -> %__MODULE__{draft | expires_at: expires_at}
195 {:error, message} -> add_error(draft, message)
200 case Utils.make_poll_data(draft.params) do
201 {:ok, {poll, poll_emoji}} ->
202 %__MODULE__{draft | extra: poll, emoji: Map.merge(draft.emoji, poll_emoji)}
205 add_error(draft, message)
209 defp content(%{mentions: mentions} = draft) do
210 {content_html, mentioned_users, tags} = Utils.make_content_html(draft)
213 Enum.map(mentioned_users, fn {_, mentioned_user} -> mentioned_user.ap_id end)
217 |> Kernel.++(mentioned_ap_ids)
218 |> Utils.get_addressed_users(draft.params[:to])
220 %__MODULE__{draft | content_html: content_html, mentions: mentions, tags: tags}
223 defp to_and_cc(draft) do
224 {to, cc} = Utils.get_to_and_cc(draft)
225 %__MODULE__{draft | to: to, cc: cc}
228 defp context(draft) do
229 context = Utils.make_context(draft.in_reply_to, draft.in_reply_to_conversation)
230 %__MODULE__{draft | context: context}
233 defp sensitive(draft) do
234 sensitive = draft.params[:sensitive]
235 %__MODULE__{draft | sensitive: sensitive}
238 defp object(draft) do
239 emoji = Map.merge(Pleroma.Emoji.Formatter.get_emoji_map(draft.full_payload), draft.emoji)
241 # Sometimes people create posts with subject containing emoji,
242 # since subjects are usually copied this will result in a broken
243 # subject when someone replies from an instance that does not have
244 # the emoji or has it under different shortcode. This is an attempt
245 # to mitigate this by copying emoji from inReplyTo if they are present
248 with %Activity{} <- draft.in_reply_to,
249 %Object{data: %{"tag" => [_ | _] = tag}} <- Object.normalize(draft.in_reply_to) do
250 Enum.reduce(tag, %{}, fn
251 %{"type" => "Emoji", "name" => name, "icon" => %{"url" => url}}, acc ->
252 if String.contains?(draft.summary, name) do
253 Map.put(acc, name, url)
265 emoji = Map.merge(emoji, summary_emoji)
267 {:ok, note_data, _meta} = Builder.note(draft)
271 |> Map.put("emoji", emoji)
272 |> Map.put("source", %{
273 "content" => draft.status,
274 "mediaType" => Utils.get_content_type(draft.params[:content_type])
276 |> Map.put("generator", draft.params[:generator])
278 %__MODULE__{draft | object: object}
281 defp preview?(draft) do
282 preview? = Pleroma.Web.Utils.Params.truthy_param?(draft.params[:preview])
283 %__MODULE__{draft | preview?: preview?}
286 defp changes(draft) do
287 direct? = draft.visibility == "direct"
288 additional = %{"cc" => draft.cc, "directMessage" => direct?}
291 case draft.expires_at do
292 %DateTime{} = expires_at -> Map.put(additional, "expires_at", expires_at)
300 context: draft.context,
301 object: draft.object,
302 additional: additional
304 |> Utils.maybe_add_list_data(draft.user, draft.visibility)
306 %__MODULE__{draft | changes: changes}
309 defp with_valid(%{valid?: true} = draft, func), do: func.(draft)
310 defp with_valid(draft, _func), do: draft
312 defp add_error(draft, message) do
313 %__MODULE__{draft | valid?: false, errors: [message | draft.errors]}
316 defp validate(%{valid?: true} = draft), do: {:ok, draft}
317 defp validate(%{errors: [message | _]}), do: {:error, message}