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.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
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timeout = Pleroma.Config.get([:activitypub, :follow_handshake_timeout])
with {:ok, follower} <- User.maybe_direct_follow(follower, followed),
{:ok, activity} <- ActivityPub.follow(follower, followed),
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{:ok, follower, followed} <- User.wait_and_refresh(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
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_ -> {:error, dgettext("errors", "Could not delete")}
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end
end
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def repeat(id_or_ap_id, user, params \\ %{}) do
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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),
public <- public_announce?(object, params) do
ActivityPub.announce(user, object, nil, true, public)
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else
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_ -> {:error, dgettext("errors", "Could not repeat")}
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end
end
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def unrepeat(id_or_ap_id, user) do
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with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id) do
object = Object.normalize(activity)
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ActivityPub.unannounce(user, object)
else
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_ -> {: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
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_ -> {:error, dgettext("errors", "Could not favorite")}
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end
end
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def unfavorite(id_or_ap_id, user) do
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with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id) do
object = Object.normalize(activity)
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ActivityPub.unlike(user, object)
else
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_ -> {:error, dgettext("errors", "Could not unfavorite")}
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end
end
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def vote(user, %{data: %{"type" => "Question"}} = object, choices) do
with :ok <- validate_not_author(object, user),
:ok <- validate_existing_votes(user, object),
{:ok, options, choices} <- normalize_and_validate_choices(choices, object) 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}
end
end
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defp validate_not_author(%{data: %{"actor" => ap_id}}, %{ap_id: ap_id}),
do: {:error, dgettext("errors", "Poll's author can't vote")}
defp validate_not_author(_, _), do: :ok
defp validate_existing_votes(%{ap_id: ap_id}, object) do
if Utils.get_existing_votes(ap_id, object) == [] do
:ok
else
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{:error, dgettext("errors", "Already voted")}
end
end
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defp get_options_and_max_count(%{data: %{"anyOf" => any_of}}), do: {any_of, Enum.count(any_of)}
defp get_options_and_max_count(%{data: %{"oneOf" => one_of}}), do: {one_of, 1}
defp normalize_and_validate_choices(choices, object) do
choices = Enum.map(choices, fn i -> if is_binary(i), do: String.to_integer(i), else: i end)
{options, max_count} = get_options_and_max_count(object)
count = Enum.count(options)
with {_, true} <- {:valid_choice, Enum.all?(choices, &(&1 < count))},
{_, true} <- {:count_check, Enum.count(choices) <= max_count} do
{:ok, options, choices}
else
{:valid_choice, _} -> {:error, dgettext("errors", "Invalid indices")}
{:count_check, _} -> {:error, dgettext("errors", "Too many choices")}
end
end
def public_announce?(_, %{"visibility" => visibility})
when visibility in ~w{public unlisted private direct},
do: visibility in ~w(public unlisted)
def public_announce?(object, _) do
Visibility.is_public?(object)
end
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def get_visibility(_, _, %Participation{}), do: {"direct", "direct"}
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
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Visibility.get_visibility(object)
end
end
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def check_expiry_date({:ok, nil} = res), do: res
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def 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
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def check_expiry_date(expiry_str) do
Ecto.Type.cast(:integer, expiry_str)
|> check_expiry_date()
end
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def listen(user, %{"title" => _} = data) do
with visibility <- data["visibility"] || "public",
{to, cc} <- get_to_and_cc(user, [], nil, visibility, nil),
listen_data <-
Map.take(data, ["album", "artist", "title", "length"])
|> Map.put("type", "Audio")
|> Map.put("to", to)
|> Map.put("cc", cc)
|> Map.put("actor", user.ap_id),
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{:ok, activity} <-
ActivityPub.listen(%{
actor: user,
to: to,
object: listen_data,
context: Utils.generate_context_id(),
additional: %{"cc" => cc}
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}) do
{:ok, activity}
end
end
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def post(user, %{"status" => _} = data) do
with {:ok, draft} <- Pleroma.Web.CommonAPI.ActivityDraft.create(user, data) do
draft.changes
|> ActivityPub.create(draft.preview?)
|> maybe_create_activity_expiration(draft.expires_at)
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end
end
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defp maybe_create_activity_expiration({:ok, activity}, %NaiveDateTime{} = expires_at) do
with {:ok, _} <- ActivityExpiration.create(activity, expires_at) do
{:ok, activity}
end
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end
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defp maybe_create_activity_expiration(result, _), do: result
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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)
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source_data = user.info |> Map.get(:source_data, %{}) |> Map.put("tag", emoji)
user =
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case User.update_info(user, &User.Info.set_source_data(&1, source_data)) do
{:ok, user} -> user
_ -> 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,
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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
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ThreadMute.check_muted(user.id, activity.data["context"]) != []
end
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def report(user, %{"account_id" => account_id} = data) do
with {:ok, account} <- get_reported_account(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) do
ActivityPub.flag(%{
context: Utils.generate_context_id(),
actor: user,
account: account,
statuses: statuses,
content: content_html,
forward: data["forward"] || false
})
end
end
def report(_user, _params), do: {:error, dgettext("errors", "Valid `account_id` required")}
defp get_reported_account(account_id) do
case User.get_cached_by_id(account_id) do
%User{} = account -> {:ok, account}
_ -> {:error, dgettext("errors", "Account not found")}
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end
end
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def update_report_state(activity_id, state) do
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with %Activity{} = activity <- Activity.get_by_id(activity_id) do
Utils.update_report_state(activity, state)
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else
nil -> {:error, :not_found}
_ -> {: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),
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{:ok, activity} <- toggle_sensitive(activity, opts) do
set_visibility(activity, opts)
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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