honkoma/lib/pleroma/web/common_api/activity_draft.ex

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# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.CommonAPI.ActivityDraft do
alias Pleroma.Activity
alias Pleroma.Conversation.Participation
alias Pleroma.Web.CommonAPI
alias Pleroma.Web.CommonAPI.Utils
import Pleroma.Web.Gettext
defstruct valid?: true,
errors: [],
user: nil,
params: %{},
status: nil,
summary: nil,
full_payload: nil,
attachments: [],
in_reply_to: nil,
in_reply_to_conversation: nil,
visibility: nil,
expires_at: nil,
poll: nil,
emoji: %{},
content_html: nil,
mentions: [],
tags: [],
to: [],
cc: [],
context: nil,
sensitive: false,
object: nil,
preview?: false,
changes: %{}
def create(user, params) do
%__MODULE__{user: user}
|> put_params(params)
|> status()
|> summary()
|> with_valid(&attachments/1)
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|> full_payload()
|> expires_at()
|> poll()
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|> with_valid(&in_reply_to/1)
|> with_valid(&in_reply_to_conversation/1)
|> with_valid(&visibility/1)
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|> content()
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|> with_valid(&to_and_cc/1)
|> 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()
end
defp put_params(draft, params) do
params = Map.put_new(params, "in_reply_to_status_id", params["in_reply_to_id"])
%__MODULE__{draft | params: params}
end
defp status(%{params: %{"status" => status}} = draft) do
%__MODULE__{draft | status: String.trim(status)}
end
defp summary(%{params: params} = draft) do
%__MODULE__{draft | summary: Map.get(params, "spoiler_text", "")}
end
defp full_payload(%{status: status, summary: summary} = draft) do
full_payload = String.trim(status <> summary)
case Utils.validate_character_limit(full_payload, draft.attachments) do
:ok -> %__MODULE__{draft | full_payload: full_payload}
{:error, message} -> add_error(draft, message)
end
end
defp attachments(%{params: params} = draft) do
attachments = Utils.attachments_from_ids(params)
%__MODULE__{draft | attachments: attachments}
end
defp in_reply_to(draft) do
case Map.get(draft.params, "in_reply_to_status_id") do
"" -> draft
nil -> draft
id -> %__MODULE__{draft | in_reply_to: Activity.get_by_id(id)}
end
end
defp in_reply_to_conversation(draft) do
in_reply_to_conversation = Participation.get(draft.params["in_reply_to_conversation_id"])
%__MODULE__{draft | in_reply_to_conversation: in_reply_to_conversation}
end
defp visibility(%{params: params} = draft) do
case CommonAPI.get_visibility(params, draft.in_reply_to, draft.in_reply_to_conversation) do
{visibility, "direct"} when visibility != "direct" ->
add_error(draft, dgettext("errors", "The message visibility must be direct"))
{visibility, _} ->
%__MODULE__{draft | visibility: visibility}
end
end
defp expires_at(draft) do
case CommonAPI.check_expiry_date(draft.params["expires_in"]) do
{:ok, expires_at} -> %__MODULE__{draft | expires_at: expires_at}
{:error, message} -> add_error(draft, message)
end
end
defp poll(draft) do
case Utils.make_poll_data(draft.params) do
{:ok, {poll, poll_emoji}} ->
%__MODULE__{draft | poll: poll, emoji: Map.merge(draft.emoji, poll_emoji)}
{:error, message} ->
add_error(draft, message)
end
end
defp content(draft) do
{content_html, mentions, tags} =
Utils.make_content_html(
draft.status,
draft.attachments,
draft.params,
draft.visibility
)
%__MODULE__{draft | content_html: content_html, mentions: mentions, tags: tags}
end
defp to_and_cc(draft) do
addressed_users =
draft.mentions
|> Enum.map(fn {_, mentioned_user} -> mentioned_user.ap_id end)
|> Utils.get_addressed_users(draft.params["to"])
{to, cc} =
Utils.get_to_and_cc(
draft.user,
addressed_users,
draft.in_reply_to,
draft.visibility,
draft.in_reply_to_conversation
)
%__MODULE__{draft | to: to, cc: cc}
end
defp context(draft) do
context = Utils.make_context(draft.in_reply_to, draft.in_reply_to_conversation)
%__MODULE__{draft | context: context}
end
defp sensitive(draft) do
sensitive = draft.params["sensitive"] || Enum.member?(draft.tags, {"#nsfw", "nsfw"})
%__MODULE__{draft | sensitive: sensitive}
end
defp object(draft) do
emoji = Map.merge(Pleroma.Emoji.Formatter.get_emoji_map(draft.full_payload), draft.emoji)
object =
Utils.make_note_data(
draft.user.ap_id,
draft.to,
draft.context,
draft.content_html,
draft.attachments,
draft.in_reply_to,
draft.tags,
draft.summary,
draft.cc,
draft.sensitive,
draft.poll
)
|> Map.put("emoji", emoji)
%__MODULE__{draft | object: object}
end
defp preview?(draft) do
preview? = Pleroma.Web.ControllerHelper.truthy_param?(draft.params["preview"])
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%__MODULE__{draft | preview?: preview?}
end
defp changes(draft) do
direct? = draft.visibility == "direct"
changes =
%{
to: draft.to,
actor: draft.user,
context: draft.context,
object: draft.object,
additional: %{"cc" => draft.cc, "directMessage" => direct?}
}
|> Utils.maybe_add_list_data(draft.user, draft.visibility)
%__MODULE__{draft | changes: changes}
end
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defp with_valid(%{valid?: true} = draft, func), do: func.(draft)
defp with_valid(draft, _func), do: draft
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defp add_error(draft, message) do
%__MODULE__{draft | valid?: false, errors: [message | draft.errors]}
end
defp validate(%{valid?: true} = draft), do: {:ok, draft}
defp validate(%{errors: [message | _]}), do: {:error, message}
end