274 lines
7.9 KiB
Elixir
274 lines
7.9 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.CommonAPI.ActivityDraft do
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alias Pleroma.Activity
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alias Pleroma.Conversation.Participation
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alias Pleroma.Object
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alias Pleroma.Web.ActivityPub.Builder
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alias Pleroma.Web.CommonAPI
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alias Pleroma.Web.CommonAPI.Utils
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import Pleroma.Web.Gettext
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defstruct valid?: true,
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errors: [],
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user: nil,
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params: %{},
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status: nil,
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summary: nil,
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full_payload: nil,
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attachments: [],
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in_reply_to: nil,
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in_reply_to_conversation: nil,
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visibility: nil,
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expires_at: nil,
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extra: nil,
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emoji: %{},
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content_html: nil,
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mentions: [],
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tags: [],
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to: [],
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cc: [],
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context: nil,
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sensitive: false,
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object: nil,
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preview?: false,
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changes: %{}
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def new(user, params) do
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%__MODULE__{user: user}
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|> put_params(params)
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end
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def create(user, params) do
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user
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|> new(params)
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|> status()
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|> summary()
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|> with_valid(&attachments/1)
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|> full_payload()
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|> expires_at()
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|> poll()
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|> with_valid(&in_reply_to/1)
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|> with_valid(&in_reply_to_conversation/1)
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|> with_valid(&visibility/1)
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|> content()
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|> with_valid(&to_and_cc/1)
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|> with_valid(&context/1)
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|> sensitive()
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|> with_valid(&object/1)
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|> preview?()
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|> with_valid(&changes/1)
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|> validate()
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end
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def listen(user, params) do
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user
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|> new(params)
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|> visibility()
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|> to_and_cc()
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|> context()
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|> listen_object()
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|> with_valid(&changes/1)
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|> validate()
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end
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defp listen_object(draft) do
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object =
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draft.params
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|> Map.take([:album, :artist, :title, :length])
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|> Map.new(fn {key, value} -> {to_string(key), value} end)
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|> Map.put("type", "Audio")
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|> Map.put("to", draft.to)
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|> Map.put("cc", draft.cc)
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|> Map.put("actor", draft.user.ap_id)
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%__MODULE__{draft | object: object}
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end
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defp put_params(draft, params) do
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params = Map.put_new(params, :in_reply_to_status_id, params[:in_reply_to_id])
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%__MODULE__{draft | params: params}
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end
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defp status(%{params: %{status: status}} = draft) do
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%__MODULE__{draft | status: String.trim(status)}
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end
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defp summary(%{params: params} = draft) do
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%__MODULE__{draft | summary: Map.get(params, :spoiler_text, "")}
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end
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defp full_payload(%{status: status, summary: summary} = draft) do
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full_payload = String.trim(status <> summary)
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case Utils.validate_character_limit(full_payload, draft.attachments) do
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:ok -> %__MODULE__{draft | full_payload: full_payload}
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{:error, message} -> add_error(draft, message)
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end
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end
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defp attachments(%{params: params} = draft) do
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attachments = Utils.attachments_from_ids(params)
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draft = %__MODULE__{draft | attachments: attachments}
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case Utils.validate_attachments_count(attachments) do
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:ok -> draft
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{:error, message} -> add_error(draft, message)
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end
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end
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defp in_reply_to(%{params: %{in_reply_to_status_id: ""}} = draft), do: draft
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defp in_reply_to(%{params: %{in_reply_to_status_id: id}} = draft) when is_binary(id) do
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%__MODULE__{draft | in_reply_to: Activity.get_by_id(id)}
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end
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defp in_reply_to(%{params: %{in_reply_to_status_id: %Activity{} = in_reply_to}} = draft) do
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%__MODULE__{draft | in_reply_to: in_reply_to}
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end
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defp in_reply_to(draft), do: draft
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defp in_reply_to_conversation(draft) do
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in_reply_to_conversation = Participation.get(draft.params[:in_reply_to_conversation_id])
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%__MODULE__{draft | in_reply_to_conversation: in_reply_to_conversation}
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end
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defp visibility(%{params: params} = draft) do
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case CommonAPI.get_visibility(params, draft.in_reply_to, draft.in_reply_to_conversation) do
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{visibility, "direct"} when visibility != "direct" ->
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add_error(draft, dgettext("errors", "The message visibility must be direct"))
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{visibility, _} ->
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%__MODULE__{draft | visibility: visibility}
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end
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end
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defp expires_at(draft) do
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case CommonAPI.check_expiry_date(draft.params[:expires_in]) do
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{:ok, expires_at} -> %__MODULE__{draft | expires_at: expires_at}
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{:error, message} -> add_error(draft, message)
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end
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end
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defp poll(draft) do
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case Utils.make_poll_data(draft.params) do
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{:ok, {poll, poll_emoji}} ->
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%__MODULE__{draft | extra: poll, emoji: Map.merge(draft.emoji, poll_emoji)}
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{:error, message} ->
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add_error(draft, message)
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end
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end
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defp content(draft) do
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{content_html, mentioned_users, tags} = Utils.make_content_html(draft)
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mentions =
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mentioned_users
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|> Enum.map(fn {_, mentioned_user} -> mentioned_user.ap_id end)
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|> Utils.get_addressed_users(draft.params[:to])
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%__MODULE__{draft | content_html: content_html, mentions: mentions, tags: tags}
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end
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defp to_and_cc(draft) do
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{to, cc} = Utils.get_to_and_cc(draft)
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%__MODULE__{draft | to: to, cc: cc}
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end
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defp context(draft) do
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context = Utils.make_context(draft.in_reply_to, draft.in_reply_to_conversation)
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%__MODULE__{draft | context: context}
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end
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defp sensitive(draft) do
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sensitive = draft.params[:sensitive]
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%__MODULE__{draft | sensitive: sensitive}
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end
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defp object(draft) do
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emoji = Map.merge(Pleroma.Emoji.Formatter.get_emoji_map(draft.full_payload), draft.emoji)
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# Sometimes people create posts with subject containing emoji,
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# since subjects are usually copied this will result in a broken
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# subject when someone replies from an instance that does not have
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# the emoji or has it under different shortcode. This is an attempt
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# to mitigate this by copying emoji from inReplyTo if they are present
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# in the subject.
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summary_emoji =
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with %Activity{} <- draft.in_reply_to,
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%Object{data: %{"tag" => [_ | _] = tag}} <- Object.normalize(draft.in_reply_to) do
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Enum.reduce(tag, %{}, fn
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%{"type" => "Emoji", "name" => name, "icon" => %{"url" => url}}, acc ->
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if String.contains?(draft.summary, name) do
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Map.put(acc, name, url)
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else
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acc
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end
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_, acc ->
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acc
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end)
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else
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_ -> %{}
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end
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emoji = Map.merge(emoji, summary_emoji)
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{:ok, note_data, _meta} = Builder.note(draft)
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object =
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note_data
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|> Map.put("emoji", emoji)
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|> Map.put("source", %{
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"content" => draft.status,
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"mediaType" => Utils.get_content_type(draft.params[:content_type])
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})
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|> Map.put("generator", draft.params[:generator])
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%__MODULE__{draft | object: object}
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end
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defp preview?(draft) do
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preview? = Pleroma.Web.Utils.Params.truthy_param?(draft.params[:preview])
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%__MODULE__{draft | preview?: preview?}
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end
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defp changes(draft) do
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direct? = draft.visibility == "direct"
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additional = %{"cc" => draft.cc, "directMessage" => direct?}
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additional =
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case draft.expires_at do
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%DateTime{} = expires_at -> Map.put(additional, "expires_at", expires_at)
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_ -> additional
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end
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changes =
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%{
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to: draft.to,
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actor: draft.user,
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context: draft.context,
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object: draft.object,
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additional: additional
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}
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|> Utils.maybe_add_list_data(draft.user, draft.visibility)
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%__MODULE__{draft | changes: changes}
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end
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defp with_valid(%{valid?: true} = draft, func), do: func.(draft)
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defp with_valid(draft, _func), do: draft
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defp add_error(draft, message) do
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%__MODULE__{draft | valid?: false, errors: [message | draft.errors]}
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end
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defp validate(%{valid?: true} = draft), do: {:ok, draft}
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defp validate(%{errors: [message | _]}), do: {:error, message}
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end
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