debianize-mobilizon/lib/mobilizon_web/resolvers/person.ex

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Elixir
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defmodule MobilizonWeb.Resolvers.Person do
@moduledoc """
Handles the person-related GraphQL calls
"""
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alias Mobilizon.Actors
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alias Mobilizon.Actors.Actor
alias Mobilizon.Events
alias Mobilizon.Events.Participant
alias Mobilizon.Service.ActivityPub
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alias Mobilizon.Users
alias Mobilizon.Users.User
@doc """
Get a person
"""
def get_person(_parent, %{id: id}, _resolution) do
with %Actor{} = actor <- Actors.get_actor_with_preload(id),
actor <- proxify_pictures(actor) do
{:ok, actor}
else
_ ->
{:error, "Person with ID #{id} not found"}
end
end
@doc """
Find a person
"""
def fetch_person(_parent, %{preferred_username: preferred_username}, _resolution) do
with {:ok, %Actor{} = actor} <-
ActivityPub.find_or_make_actor_from_nickname(preferred_username),
actor <- proxify_pictures(actor) do
{:ok, actor}
else
_ ->
{:error, "Person with username #{preferred_username} not found"}
end
end
@doc """
Returns the current actor for the currently logged-in user
"""
def get_current_person(_parent, _args, %{context: %{current_user: user}}) do
{:ok, Users.get_actor_for_user(user)}
end
def get_current_person(_parent, _args, _resolution) do
{:error, "You need to be logged-in to view current person"}
end
@doc """
Returns the list of identities for the logged-in user
"""
def identities(_parent, _args, %{context: %{current_user: user}}) do
{:ok, Users.get_actors_for_user(user)}
end
def identities(_parent, _args, _resolution) do
{:error, "You need to be logged-in to view your list of identities"}
end
@doc """
This function is used to create more identities from an existing user
"""
def create_person(
_parent,
%{preferred_username: _preferred_username} = args,
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%{context: %{current_user: user}} = _resolution
) do
args = Map.put(args, :user_id, user.id)
with args <- save_attached_pictures(args),
{:ok, %Actor{} = new_person} <- Actors.new_person(args) do
{:ok, new_person}
end
end
@doc """
This function is used to create more identities from an existing user
"""
def create_person(_parent, _args, _resolution) do
{:error, "You need to be logged-in to create a new identity"}
end
@doc """
This function is used to update an existing identity
"""
def update_person(
_parent,
%{id: id} = args,
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%{context: %{current_user: user}} = _resolution
) do
args = Map.put(args, :user_id, user.id)
with {:find_actor, %Actor{} = actor} <-
{:find_actor, Actors.get_actor(id)},
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{:is_owned, %Actor{}} <- User.owns_actor(user, actor.id),
args <- save_attached_pictures(args),
{:ok, actor} <- Actors.update_actor(actor, args) do
{:ok, actor}
else
{:find_actor, nil} ->
{:error, "Actor not found"}
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{:is_owned, nil} ->
{:error, "Actor is not owned by authenticated user"}
end
end
def update_person(_parent, _args, _resolution) do
{:error, "You need to be logged-in to update an identity"}
end
@doc """
This function is used to delete an existing identity
"""
def delete_person(
_parent,
%{id: id} = _args,
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%{context: %{current_user: user}} = _resolution
) do
with {:find_actor, %Actor{} = actor} <-
{:find_actor, Actors.get_actor(id)},
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{:is_owned, %Actor{}} <- User.owns_actor(user, actor.id),
{:last_identity, false} <- {:last_identity, last_identity?(user)},
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{:last_admin, false} <- {:last_admin, last_admin_of_a_group?(actor.id)},
{:ok, actor} <- Actors.delete_actor(actor) do
{:ok, actor}
else
{:find_actor, nil} ->
{:error, "Actor not found"}
{:last_identity, true} ->
{:error, "Cannot remove the last identity of a user"}
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{:last_admin, true} ->
{:error, "Cannot remove the last administrator of a group"}
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{:is_owned, nil} ->
{:error, "Actor is not owned by authenticated user"}
end
end
def delete_person(_parent, _args, _resolution) do
{:error, "You need to be logged-in to delete an identity"}
end
defp last_identity?(user) do
length(Users.get_actors_for_user(user)) <= 1
end
defp save_attached_pictures(args) do
Enum.reduce([:avatar, :banner], args, fn key, args ->
if Map.has_key?(args, key) && !is_nil(args[key][:picture]) do
pic = args[key][:picture]
with {:ok, %{"name" => name, "url" => [%{"href" => url, "mediaType" => content_type}]}} <-
MobilizonWeb.Upload.store(pic.file, type: key, description: pic.alt) do
Map.put(args, key, %{"name" => name, "url" => url, "mediaType" => content_type})
end
else
args
end
end)
end
@doc """
This function is used to register a person afterwards the user has been created (but not activated)
"""
def register_person(_parent, args, _resolution) do
with {:ok, %User{} = user} <- Users.get_user_by_email(args.email),
{:no_actor, nil} <- {:no_actor, Users.get_actor_for_user(user)},
args <- Map.put(args, :user_id, user.id),
args <- save_attached_pictures(args),
{:ok, %Actor{} = new_person} <- Actors.new_person(args) do
{:ok, new_person}
else
{:error, :user_not_found} ->
{:error, "User with email not found"}
{:no_actor, _} ->
{:error, "You already have a profile for this user"}
{:error, %Ecto.Changeset{} = e} ->
{:error, e}
end
end
@doc """
Returns the participation for a specific event
"""
def person_participations(%Actor{id: actor_id}, %{event_id: event_id}, %{
context: %{current_user: user}
}) do
with {:is_owned, %Actor{} = _actor} <- User.owns_actor(user, actor_id),
{:no_participant, {:ok, %Participant{} = participant}} <-
{:no_participant, Events.get_participant(event_id, actor_id)} do
{:ok, [participant]}
else
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{:is_owned, nil} ->
{:error, "Actor id is not owned by authenticated user"}
{:no_participant, _} ->
{:ok, []}
end
end
@doc """
Returns the list of events this person is going to
"""
def person_participations(%Actor{id: actor_id}, _args, %{context: %{current_user: user}}) do
with {:is_owned, %Actor{} = actor} <- User.owns_actor(user, actor_id),
participations <- Events.list_event_participations_for_actor(actor) do
{:ok, participations}
else
{:is_owned, nil} ->
{:error, "Actor id is not owned by authenticated user"}
end
end
def proxify_pictures(%Actor{} = actor) do
actor
|> proxify_avatar
|> proxify_banner
end
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# We check that the actor is not the last administrator/creator of a group
@spec last_admin_of_a_group?(integer()) :: boolean()
defp last_admin_of_a_group?(actor_id) do
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length(Actors.list_group_ids_where_last_administrator(actor_id)) > 0
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end
@spec proxify_avatar(Actor.t()) :: Actor.t()
defp proxify_avatar(%Actor{avatar: %{url: avatar_url} = avatar} = actor) do
actor |> Map.put(:avatar, avatar |> Map.put(:url, MobilizonWeb.MediaProxy.url(avatar_url)))
end
@spec proxify_avatar(Actor.t()) :: Actor.t()
defp proxify_avatar(%Actor{} = actor), do: actor
@spec proxify_banner(Actor.t()) :: Actor.t()
defp proxify_banner(%Actor{banner: %{url: banner_url} = banner} = actor) do
actor |> Map.put(:banner, banner |> Map.put(:url, MobilizonWeb.MediaProxy.url(banner_url)))
end
@spec proxify_banner(Actor.t()) :: Actor.t()
defp proxify_banner(%Actor{} = actor), do: actor
end