1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2021 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.CommonAPI
11 alias Pleroma.Web.CommonAPI.Utils
13 import Pleroma.Web.Gettext
15 defstruct valid?: true,
24 in_reply_to_conversation: nil,
42 def new(user, params) do
43 %__MODULE__{user: user}
47 def create(user, params) do
52 |> with_valid(&attachments/1)
56 |> with_valid(&in_reply_to/1)
57 |> with_valid(&in_reply_to_conversation/1)
58 |> with_valid(&visibility/1)
59 |> with_valid("e_id/1)
61 |> with_valid(&to_and_cc/1)
62 |> with_valid(&context/1)
64 |> with_valid(&object/1)
66 |> with_valid(&changes/1)
70 defp put_params(draft, params) do
71 params = Map.put_new(params, :in_reply_to_status_id, params[:in_reply_to_id])
72 %__MODULE__{draft | params: params}
75 defp status(%{params: %{status: status}} = draft) do
76 %__MODULE__{draft | status: String.trim(status)}
79 defp summary(%{params: params} = draft) do
80 %__MODULE__{draft | summary: Map.get(params, :spoiler_text, "")}
83 defp full_payload(%{status: status, summary: summary} = draft) do
84 full_payload = String.trim(status <> summary)
86 case Utils.validate_character_limit(full_payload, draft.attachments) do
87 :ok -> %__MODULE__{draft | full_payload: full_payload}
88 {:error, message} -> add_error(draft, message)
92 defp attachments(%{params: params} = draft) do
93 attachments = Utils.attachments_from_ids(params)
94 %__MODULE__{draft | attachments: attachments}
97 defp in_reply_to(%{params: %{in_reply_to_status_id: ""}} = draft), do: draft
99 defp in_reply_to(%{params: %{in_reply_to_status_id: id}} = draft) when is_binary(id) do
100 %__MODULE__{draft | in_reply_to: Activity.get_by_id(id)}
103 defp in_reply_to(%{params: %{in_reply_to_status_id: %Activity{} = in_reply_to}} = draft) do
104 %__MODULE__{draft | in_reply_to: in_reply_to}
107 defp in_reply_to(draft), do: draft
109 defp in_reply_to_conversation(draft) do
110 in_reply_to_conversation = Participation.get(draft.params[:in_reply_to_conversation_id])
111 %__MODULE__{draft | in_reply_to_conversation: in_reply_to_conversation}
114 defp quote_id(%{params: %{quote_id: ""}} = draft), do: draft
116 defp quote_id(%{params: %{quote_id: id}} = draft) when is_binary(id) do
117 with {:activity, %Activity{} = quote} <- {:activity, Activity.get_by_id(id)},
118 visibility <- CommonAPI.get_quoted_visibility(quote),
119 {:visibility, true} <- {:visibility, visibility in ["public", "unlisted"]} do
120 %__MODULE__{draft | quote: Activity.get_by_id(id)}
123 add_error(draft, dgettext("errors", "You can't quote a status that doesn't exist"))
125 {:visibility, false} ->
126 add_error(draft, dgettext("errors", "You can only quote public or unlisted statuses"))
130 defp quote_id(%{params: %{quote_id: %Activity{} = quote}} = draft) do
131 %__MODULE__{draft | quote: quote}
134 defp quote_id(draft), do: draft
136 defp visibility(%{params: params} = draft) do
137 case CommonAPI.get_visibility(params, draft.in_reply_to, draft.in_reply_to_conversation) do
138 {visibility, "direct"} when visibility != "direct" ->
139 add_error(draft, dgettext("errors", "The message visibility must be direct"))
142 %__MODULE__{draft | visibility: visibility}
146 defp expires_at(draft) do
147 case CommonAPI.check_expiry_date(draft.params[:expires_in]) do
148 {:ok, expires_at} -> %__MODULE__{draft | expires_at: expires_at}
149 {:error, message} -> add_error(draft, message)
154 case Utils.make_poll_data(draft.params) do
155 {:ok, {poll, poll_emoji}} ->
156 %__MODULE__{draft | extra: poll, emoji: Map.merge(draft.emoji, poll_emoji)}
159 add_error(draft, message)
163 defp content(draft) do
164 {content_html, mentioned_users, tags} = Utils.make_content_html(draft)
168 |> Enum.map(fn {_, mentioned_user} -> mentioned_user.ap_id end)
169 |> Utils.get_addressed_users(draft.params[:to])
171 %__MODULE__{draft | content_html: content_html, mentions: mentions, tags: tags}
174 defp to_and_cc(draft) do
175 {to, cc} = Utils.get_to_and_cc(draft)
176 %__MODULE__{draft | to: to, cc: cc}
179 defp context(draft) do
180 context = Utils.make_context(draft)
181 %__MODULE__{draft | context: context}
184 defp sensitive(draft) do
185 sensitive = draft.params[:sensitive]
186 %__MODULE__{draft | sensitive: sensitive}
189 defp object(draft) do
190 emoji = Map.merge(Pleroma.Emoji.Formatter.get_emoji_map(draft.full_payload), draft.emoji)
192 # Sometimes people create posts with subject containing emoji,
193 # since subjects are usually copied this will result in a broken
194 # subject when someone replies from an instance that does not have
195 # the emoji or has it under different shortcode. This is an attempt
196 # to mitigate this by copying emoji from inReplyTo if they are present
199 with %Activity{} <- draft.in_reply_to,
200 %Object{data: %{"tag" => [_ | _] = tag}} <- Object.normalize(draft.in_reply_to) do
201 Enum.reduce(tag, %{}, fn
202 %{"type" => "Emoji", "name" => name, "icon" => %{"url" => url}}, acc ->
203 if String.contains?(draft.summary, name) do
204 Map.put(acc, name, url)
216 emoji = Map.merge(emoji, summary_emoji)
217 {:ok, note_data, _meta} = Builder.note(draft)
221 |> Map.put("emoji", emoji)
222 |> Map.put("source", %{
223 "content" => draft.status,
224 "mediaType" => Utils.get_content_type(draft.params[:content_type])
226 |> Map.put("generator", draft.params[:generator])
228 %__MODULE__{draft | object: object}
231 defp preview?(draft) do
232 preview? = Pleroma.Web.Utils.Params.truthy_param?(draft.params[:preview])
233 %__MODULE__{draft | preview?: preview?}
236 defp changes(draft) do
237 direct? = draft.visibility == "direct"
238 additional = %{"cc" => draft.cc, "directMessage" => direct?}
241 case draft.expires_at do
242 %DateTime{} = expires_at -> Map.put(additional, "expires_at", expires_at)
250 context: draft.context,
251 object: draft.object,
252 additional: additional
254 |> Utils.maybe_add_list_data(draft.user, draft.visibility)
256 %__MODULE__{draft | changes: changes}
259 defp with_valid(%{valid?: true} = draft, func), do: func.(draft)
260 defp with_valid(draft, _func), do: draft
262 defp add_error(draft, message) do
263 %__MODULE__{draft | valid?: false, errors: [message | draft.errors]}
266 defp validate(%{valid?: true} = draft), do: {:ok, draft}
267 defp validate(%{errors: [message | _]}), do: {:error, message}