Pleroma/lib/pleroma/web/common_api/common_api.ex

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# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.CommonAPI do
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alias Pleroma.Activity
alias Pleroma.ActivityExpiration
alias Pleroma.Conversation.Participation
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alias Pleroma.Emoji
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alias Pleroma.Object
alias Pleroma.ThreadMute
alias Pleroma.User
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alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Utils
alias Pleroma.Web.ActivityPub.Visibility
import Pleroma.Web.Gettext
import Pleroma.Web.CommonAPI.Utils
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def follow(follower, followed) do
with {:ok, follower} <- User.maybe_direct_follow(follower, followed),
{:ok, activity} <- ActivityPub.follow(follower, followed),
{:ok, follower, followed} <-
User.wait_and_refresh(
Pleroma.Config.get([:activitypub, :follow_handshake_timeout]),
follower,
followed
) do
{:ok, follower, followed, activity}
end
end
def unfollow(follower, unfollowed) do
with {:ok, follower, _follow_activity} <- User.unfollow(follower, unfollowed),
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{:ok, _activity} <- ActivityPub.unfollow(follower, unfollowed),
{:ok, _unfollowed} <- User.unsubscribe(follower, unfollowed) do
{:ok, follower}
end
end
def accept_follow_request(follower, followed) do
with {:ok, follower} <- User.follow(follower, followed),
%Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
{:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"),
{:ok, _activity} <-
ActivityPub.accept(%{
to: [follower.ap_id],
actor: followed,
object: follow_activity.data["id"],
type: "Accept"
}) do
{:ok, follower}
end
end
def reject_follow_request(follower, followed) do
with %Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
{:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject"),
{:ok, _activity} <-
ActivityPub.reject(%{
to: [follower.ap_id],
actor: followed,
object: follow_activity.data["id"],
type: "Reject"
}) do
{:ok, follower}
end
end
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def delete(activity_id, user) do
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with %Activity{data: %{"object" => _}} = activity <-
Activity.get_by_id_with_object(activity_id),
%Object{} = object <- Object.normalize(activity),
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true <- User.superuser?(user) || user.ap_id == object.data["actor"],
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{:ok, _} <- unpin(activity_id, user),
{:ok, delete} <- ActivityPub.delete(object) do
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{:ok, delete}
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else
_ ->
{:error, dgettext("errors", "Could not delete")}
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end
end
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def repeat(id_or_ap_id, user) do
with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
object <- Object.normalize(activity),
nil <- Utils.get_existing_announce(user.ap_id, object) do
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ActivityPub.announce(user, object)
else
_ ->
{:error, dgettext("errors", "Could not repeat")}
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end
end
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def unrepeat(id_or_ap_id, user) do
with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
object <- Object.normalize(activity) do
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ActivityPub.unannounce(user, object)
else
_ ->
{:error, dgettext("errors", "Could not unrepeat")}
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end
end
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def favorite(id_or_ap_id, user) do
with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
object <- Object.normalize(activity),
nil <- Utils.get_existing_like(user.ap_id, object) do
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ActivityPub.like(user, object)
else
_ ->
{:error, dgettext("errors", "Could not favorite")}
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end
end
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def unfavorite(id_or_ap_id, user) do
with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
object <- Object.normalize(activity) do
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ActivityPub.unlike(user, object)
else
_ ->
{:error, dgettext("errors", "Could not unfavorite")}
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end
end
def vote(user, object, choices) do
with "Question" <- object.data["type"],
{:author, false} <- {:author, object.data["actor"] == user.ap_id},
{:existing_votes, []} <- {:existing_votes, Utils.get_existing_votes(user.ap_id, object)},
{options, max_count} <- get_options_and_max_count(object),
option_count <- Enum.count(options),
{:choice_check, {choices, true}} <-
{:choice_check, normalize_and_validate_choice_indices(choices, option_count)},
{:count_check, true} <- {:count_check, Enum.count(choices) <= max_count} do
answer_activities =
Enum.map(choices, fn index ->
answer_data = make_answer_data(user, object, Enum.at(options, index)["name"])
{:ok, activity} =
ActivityPub.create(%{
to: answer_data["to"],
actor: user,
context: object.data["context"],
object: answer_data,
additional: %{"cc" => answer_data["cc"]}
})
activity
end)
object = Object.get_cached_by_ap_id(object.data["id"])
{:ok, answer_activities, object}
else
{:author, _} -> {:error, dgettext("errors", "Poll's author can't vote")}
{:existing_votes, _} -> {:error, dgettext("errors", "Already voted")}
{:choice_check, {_, false}} -> {:error, dgettext("errors", "Invalid indices")}
{:count_check, false} -> {:error, dgettext("errors", "Too many choices")}
end
end
defp get_options_and_max_count(object) do
if Map.has_key?(object.data, "anyOf") do
{object.data["anyOf"], Enum.count(object.data["anyOf"])}
else
{object.data["oneOf"], 1}
end
end
defp normalize_and_validate_choice_indices(choices, count) do
Enum.map_reduce(choices, true, fn index, valid ->
index = if is_binary(index), do: String.to_integer(index), else: index
{index, if(valid, do: index < count, else: valid)}
end)
end
def get_visibility(_, _, %Participation{}) do
{"direct", "direct"}
end
def get_visibility(%{"visibility" => visibility}, in_reply_to, _)
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when visibility in ~w{public unlisted private direct},
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do: {visibility, get_replied_to_visibility(in_reply_to)}
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def get_visibility(%{"visibility" => "list:" <> list_id}, in_reply_to, _) do
visibility = {:list, String.to_integer(list_id)}
{visibility, get_replied_to_visibility(in_reply_to)}
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end
def get_visibility(_, in_reply_to, _) when not is_nil(in_reply_to) do
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visibility = get_replied_to_visibility(in_reply_to)
{visibility, visibility}
end
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def get_visibility(_, in_reply_to, _), do: {"public", get_replied_to_visibility(in_reply_to)}
def get_replied_to_visibility(nil), do: nil
def get_replied_to_visibility(activity) do
with %Object{} = object <- Object.normalize(activity) do
Pleroma.Web.ActivityPub.Visibility.get_visibility(object)
end
end
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defp check_expiry_date({:ok, nil} = res), do: res
defp check_expiry_date({:ok, in_seconds}) do
expiry = NaiveDateTime.utc_now() |> NaiveDateTime.add(in_seconds)
if ActivityExpiration.expires_late_enough?(expiry) do
{:ok, expiry}
else
{:error, "Expiry date is too soon"}
end
end
defp check_expiry_date(expiry_str) do
Ecto.Type.cast(:integer, expiry_str)
|> check_expiry_date()
end
def post(user, %{"status" => status} = data) do
limit = Pleroma.Config.get([:instance, :limit])
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with status <- String.trim(status),
attachments <- attachments_from_ids(data),
in_reply_to <- get_replied_to_activity(data["in_reply_to_status_id"]),
in_reply_to_conversation <- Participation.get(data["in_reply_to_conversation_id"]),
{visibility, in_reply_to_visibility} <-
get_visibility(data, in_reply_to, in_reply_to_conversation),
{_, false} <-
{:private_to_public, in_reply_to_visibility == "direct" && visibility != "direct"},
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{content_html, mentions, tags} <-
make_content_html(
status,
attachments,
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data,
visibility
),
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mentioned_users <- for({_, mentioned_user} <- mentions, do: mentioned_user.ap_id),
addressed_users <- get_addressed_users(mentioned_users, data["to"]),
{poll, poll_emoji} <- make_poll_data(data),
{to, cc} <-
get_to_and_cc(user, addressed_users, in_reply_to, visibility, in_reply_to_conversation),
context <- make_context(in_reply_to, in_reply_to_conversation),
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cw <- data["spoiler_text"] || "",
sensitive <- data["sensitive"] || Enum.member?(tags, {"#nsfw", "nsfw"}),
{:ok, expires_at} <- check_expiry_date(data["expires_in"]),
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full_payload <- String.trim(status <> cw),
:ok <- validate_character_limit(full_payload, attachments, limit),
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object <-
make_note_data(
user.ap_id,
to,
context,
content_html,
attachments,
in_reply_to,
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tags,
cw,
cc,
sensitive,
poll
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),
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object <- put_emoji(object, full_payload, poll_emoji) do
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preview? = Pleroma.Web.ControllerHelper.truthy_param?(data["preview"]) || false
direct? = visibility == "direct"
result =
%{
to: to,
actor: user,
context: context,
object: object,
additional: %{"cc" => cc, "directMessage" => direct?}
}
|> maybe_add_list_data(user, visibility)
|> ActivityPub.create(preview?)
if expires_at do
with {:ok, activity} <- result do
{:ok, _} = ActivityExpiration.create(activity, expires_at)
end
end
result
else
{:private_to_public, true} ->
{:error, dgettext("errors", "The message visibility must be direct")}
{:error, _} = e ->
e
e ->
{:error, e}
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end
end
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# parse and put emoji to object data
defp put_emoji(map, text, emojis) do
Map.put(
map,
"emoji",
Map.merge(Emoji.Formatter.get_emoji_map(text), emojis)
)
end
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# Updates the emojis for a user based on their profile
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def update(user) do
emoji = emoji_from_profile(user)
source_data = user.info |> Map.get(:source_data, {}) |> Map.put("tag", emoji)
user =
with {:ok, user} <- User.update_info(user, &User.Info.set_source_data(&1, source_data)) do
user
else
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_e -> user
end
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ActivityPub.update(%{
local: true,
to: [user.follower_address],
cc: [],
actor: user.ap_id,
object: Pleroma.Web.ActivityPub.UserView.render("user.json", %{user: user})
})
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end
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def pin(id_or_ap_id, %{ap_id: user_ap_id} = user) do
with %Activity{
actor: ^user_ap_id,
data: %{
"type" => "Create"
},
object: %Object{
data: %{
"type" => "Note"
}
}
} = activity <- get_by_id_or_ap_id(id_or_ap_id),
true <- Visibility.is_public?(activity),
{:ok, _user} <- User.update_info(user, &User.Info.add_pinnned_activity(&1, activity)) do
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{:ok, activity}
else
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{:error, %{changes: %{info: %{errors: [pinned_activities: {err, _}]}}}} -> {:error, err}
_ -> {:error, dgettext("errors", "Could not pin")}
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end
end
def unpin(id_or_ap_id, user) do
with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
{:ok, _user} <- User.update_info(user, &User.Info.remove_pinnned_activity(&1, activity)) do
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{:ok, activity}
else
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%{errors: [pinned_activities: {err, _}]} -> {:error, err}
_ -> {:error, dgettext("errors", "Could not unpin")}
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end
end
def add_mute(user, activity) do
with {:ok, _} <- ThreadMute.add_mute(user.id, activity.data["context"]) do
{:ok, activity}
else
{:error, _} -> {:error, dgettext("errors", "conversation is already muted")}
end
end
def remove_mute(user, activity) do
ThreadMute.remove_mute(user.id, activity.data["context"])
{:ok, activity}
end
def thread_muted?(%{id: nil} = _user, _activity), do: false
def thread_muted?(user, activity) do
with [] <- ThreadMute.check_muted(user.id, activity.data["context"]) do
false
else
_ -> true
end
end
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def report(user, data) do
with {:account_id, %{"account_id" => account_id}} <- {:account_id, data},
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{:account, %User{} = account} <- {:account, User.get_cached_by_id(account_id)},
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{:ok, {content_html, _, _}} <- make_report_content_html(data["comment"]),
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{:ok, statuses} <- get_report_statuses(account, data),
{:ok, activity} <-
ActivityPub.flag(%{
context: Utils.generate_context_id(),
actor: user,
account: account,
statuses: statuses,
content: content_html,
forward: data["forward"] || false
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}) do
{:ok, activity}
else
{:error, err} -> {:error, err}
{:account_id, %{}} -> {:error, dgettext("errors", "Valid `account_id` required")}
{:account, nil} -> {:error, dgettext("errors", "Account not found")}
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end
end
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def update_report_state(activity_id, state) do
with %Activity{} = activity <- Activity.get_by_id(activity_id),
{:ok, activity} <- Utils.update_report_state(activity, state) do
{:ok, activity}
else
nil -> {:error, :not_found}
{:error, reason} -> {:error, reason}
_ -> {:error, dgettext("errors", "Could not update state")}
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end
end
def update_activity_scope(activity_id, opts \\ %{}) do
with %Activity{} = activity <- Activity.get_by_id_with_object(activity_id),
{:ok, activity} <- toggle_sensitive(activity, opts),
{:ok, activity} <- set_visibility(activity, opts) do
{:ok, activity}
else
nil -> {:error, :not_found}
{:error, reason} -> {:error, reason}
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end
end
defp toggle_sensitive(activity, %{"sensitive" => sensitive}) when sensitive in ~w(true false) do
toggle_sensitive(activity, %{"sensitive" => String.to_existing_atom(sensitive)})
end
defp toggle_sensitive(%Activity{object: object} = activity, %{"sensitive" => sensitive})
when is_boolean(sensitive) do
new_data = Map.put(object.data, "sensitive", sensitive)
{:ok, object} =
object
|> Object.change(%{data: new_data})
|> Object.update_and_set_cache()
{:ok, Map.put(activity, :object, object)}
end
defp toggle_sensitive(activity, _), do: {:ok, activity}
defp set_visibility(activity, %{"visibility" => visibility}) do
Utils.update_activity_visibility(activity, visibility)
end
defp set_visibility(activity, _), do: {:ok, activity}
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def hide_reblogs(user, %{ap_id: ap_id} = _muted) do
if ap_id not in user.info.muted_reblogs do
User.update_info(user, &User.Info.add_reblog_mute(&1, ap_id))
end
end
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def show_reblogs(user, %{ap_id: ap_id} = _muted) do
if ap_id in user.info.muted_reblogs do
User.update_info(user, &User.Info.remove_reblog_mute(&1, ap_id))
end
end
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end