version chapril de mobilizon https://mobilizon.chapril.org/
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defmodule Mobilizon.GraphQL.Resolvers.Group do
@moduledoc """
Handles the group-related GraphQL calls.
"""
import Mobilizon.Users.Guards
alias Mobilizon.Config
alias Mobilizon.{Actors, Events}
alias Mobilizon.Actors.{Actor, Member}
alias Mobilizon.Federation.ActivityPub.Actions
alias Mobilizon.Federation.ActivityPub.Actor, as: ActivityPubActor
alias Mobilizon.GraphQL.API
alias Mobilizon.Users.{User, UserRole}
alias Mobilizon.Web.Upload
import Mobilizon.Web.Gettext
require Logger
@spec find_group(
any,
%{:preferred_username => binary, optional(any) => any},
Absinthe.Resolution.t()
) ::
{:error, :group_not_found} | {:ok, Actor.t()}
@doc """
Find a group
"""
def find_group(
parent,
%{preferred_username: name} = args,
%{
context: %{
current_actor: %Actor{id: actor_id}
}
}
) do
case ActivityPubActor.find_or_make_group_from_nickname(name) do
{:ok, %Actor{id: group_id, suspended: false} = group} ->
if Actors.is_member?(actor_id, group_id) do
{:ok, group}
else
find_group(parent, args, nil)
end
{:ok, %Actor{}} ->
{:error, :group_not_found}
{:error, _err} ->
{:error, :group_not_found}
end
end
def find_group(_parent, %{preferred_username: name}, _resolution) do
case ActivityPubActor.find_or_make_group_from_nickname(name) do
{:ok, %Actor{suspended: false} = actor} ->
%Actor{} = actor = restrict_fields_for_non_member_request(actor)
{:ok, actor}
{:ok, %Actor{}} ->
{:error, :group_not_found}
{:error, _err} ->
{:error, :group_not_found}
end
end
@doc """
Get a group
"""
@spec get_group(any(), map(), Absinthe.Resolution.t()) ::
{:ok, Actor.t()} | {:error, String.t()}
def get_group(_parent, %{id: id}, %{context: %{current_user: %User{role: role}}}) do
case Actors.get_actor_with_preload(id, true) do
%Actor{type: :Group, suspended: suspended} = actor ->
if suspended == false or is_moderator(role) do
{:ok, actor}
else
{:error, dgettext("errors", "Group with ID %{id} not found", id: id)}
end
nil ->
{:error, dgettext("errors", "Group with ID %{id} not found", id: id)}
end
end
@doc """
Lists all groups
"""
@spec list_groups(any(), map(), Absinthe.Resolution.t()) ::
{:ok, Page.t(Actor.t())} | {:error, String.t()}
def list_groups(
_parent,
%{
preferred_username: preferred_username,
name: name,
domain: domain,
local: local,
suspended: suspended,
page: page,
limit: limit
},
%{
context: %{current_user: %User{role: role}}
}
)
when is_moderator(role) do
{:ok,
Actors.list_actors(:Group, preferred_username, name, domain, local, suspended, page, limit)}
end
def list_groups(_parent, _args, _resolution),
do: {:error, dgettext("errors", "You may not list groups unless moderator.")}
# TODO Move me to somewhere cleaner
@spec save_attached_pictures(map()) :: map()
defp save_attached_pictures(args) do
Enum.reduce([:avatar, :banner], args, fn key, args ->
if is_map(args) && Map.has_key?(args, key) && !is_nil(args[key][:media]) do
pic = args[key][:media]
with {:ok, %{name: name, url: url, content_type: content_type, size: _size}} <-
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 """
Create a new group. The creator is automatically added as admin
"""
@spec create_group(any(), map(), Absinthe.Resolution.t()) ::
{:ok, Actor.t()} | {:error, String.t()}
def create_group(
_parent,
args,
%{
context: %{
current_actor: %Actor{id: creator_actor_id} = creator_actor,
current_user: %User{role: role} = _resolution
}
}
) do
if can_create_group?(role) do
args =
args
|> Map.update(:preferred_username, "", &String.downcase/1)
|> Map.put(:creator_actor, creator_actor)
|> Map.put(:creator_actor_id, creator_actor_id)
with {:picture, args} when is_map(args) <- {:picture, save_attached_pictures(args)},
{:ok, _activity, %Actor{type: :Group} = group} <-
API.Groups.create_group(args) do
{:ok, group}
else
{:picture, {:error, :file_too_large}} ->
{:error, dgettext("errors", "The provided picture is too heavy")}
{:error, err} when is_binary(err) ->
{:error, err}
end
else
{:error, dgettext("errors", "Only admins can create groups")}
end
end
def create_group(_parent, _args, _resolution) do
{:error, "You need to be logged-in to create a group"}
end
@spec can_create_group?(UserRole.t()) :: boolean()
defp can_create_group?(role) do
if Config.only_admin_can_create_groups?() do
is_admin(role)
else
true
end
end
@doc """
Update a group. The creator is automatically added as admin
"""
@spec update_group(any(), map(), Absinthe.Resolution.t()) ::
{:ok, Actor.t()} | {:error, String.t()}
def update_group(
_parent,
%{id: group_id} = args,
%{
context: %{
current_actor: %Actor{} = updater_actor
}
}
) do
if Actors.is_administrator?(updater_actor.id, group_id) do
args = Map.put(args, :updater_actor, updater_actor)
case save_attached_pictures(args) do
{:error, :file_too_large} ->
{:error, dgettext("errors", "The provided picture is too heavy")}
map when is_map(map) ->
case API.Groups.update_group(args) do
{:ok, _activity, %Actor{type: :Group} = group} ->
{:ok, group}
{:error, _err} ->
{:error, dgettext("errors", "Failed to update the group")}
end
end
else
{:error, dgettext("errors", "Profile is not administrator for the group")}
end
end
def update_group(_parent, _args, _resolution) do
{:error, dgettext("errors", "You need to be logged-in to update a group")}
end
@doc """
Delete an existing group
"""
@spec delete_group(any(), map(), Absinthe.Resolution.t()) ::
{:ok, %{id: integer()}} | {:error, String.t()}
def delete_group(
_parent,
%{group_id: group_id},
%{
context: %{
current_actor: %Actor{id: actor_id} = actor
}
}
) do
with {:ok, %Actor{} = group} <- Actors.get_group_by_actor_id(group_id),
{:ok, %Member{} = member} <- Actors.get_member(actor_id, group.id),
{:is_admin, true} <- {:is_admin, Member.is_administrator(member)},
{:ok, _activity, group} <- Actions.Delete.delete(group, actor, true) do
{:ok, %{id: group.id}}
else
{:error, :group_not_found} ->
{:error, dgettext("errors", "Group not found")}
{:error, :member_not_found} ->
{:error, dgettext("errors", "Current profile is not a member of this group")}
{:is_admin, false} ->
{:error,
dgettext("errors", "Current profile is not an administrator of the selected group")}
end
end
def delete_group(_parent, _args, _resolution) do
{:error, dgettext("errors", "You need to be logged-in to delete a group")}
end
@doc """
Join an existing group
"""
@spec join_group(any(), map(), Absinthe.Resolution.t()) ::
{:ok, Member.t()} | {:error, String.t()}
def join_group(_parent, %{group_id: group_id} = args, %{
context: %{current_actor: %Actor{} = actor}
}) do
with {:ok, %Actor{type: :Group} = group} <-
Actors.get_group_by_actor_id(group_id),
{:error, :member_not_found} <- Actors.get_member(actor.id, group.id),
{:is_able_to_join, true} <- {:is_able_to_join, Member.can_be_joined(group)},
{:ok, _activity, %Member{} = member} <-
Actions.Join.join(group, actor, true, args) do
{:ok, member}
else
{:error, :group_not_found} ->
{:error, dgettext("errors", "Group not found")}
{:is_able_to_join, false} ->
{:error, dgettext("errors", "You cannot join this group")}
{:ok, %Member{}} ->
{:error, dgettext("errors", "You are already a member of this group")}
end
end
def join_group(_parent, _args, _resolution) do
{:error, dgettext("errors", "You need to be logged-in to join a group")}
end
@doc """
Leave a existing group
"""
@spec leave_group(any(), map(), Absinthe.Resolution.t()) ::
{:ok, Member.t()} | {:error, String.t()}
def leave_group(
_parent,
%{group_id: group_id},
%{
context: %{
current_actor: %Actor{} = actor
}
}
) do
with {:group, %Actor{type: :Group} = group} <- {:group, Actors.get_actor(group_id)},
{:ok, _activity, %Member{} = member} <-
Actions.Leave.leave(group, actor, true) do
{:ok, member}
else
{:error, :member_not_found} ->
{:error, dgettext("errors", "Member not found")}
{:group, nil} ->
{:error, dgettext("errors", "Group not found")}
{:error, :is_not_only_admin} ->
{:error,
dgettext("errors", "You can't leave this group because you are the only administrator")}
end
end
def leave_group(_parent, _args, _resolution) do
{:error, dgettext("errors", "You need to be logged-in to leave a group")}
end
@spec find_events_for_group(Actor.t(), map(), Absinthe.Resolution.t()) ::
{:ok, Page.t(Event.t())}
def find_events_for_group(
%Actor{id: group_id} = group,
%{
page: page,
limit: limit
} = args,
%{
context: %{
current_user: %User{role: user_role},
current_actor: %Actor{id: actor_id}
}
}
) do
if Actors.is_member?(actor_id, group_id) or is_moderator(user_role) do
# TODO : Handle public / restricted to group members events
{:ok,
Events.list_organized_events_for_group(
group,
:all,
Map.get(args, :after_datetime),
Map.get(args, :before_datetime),
page,
limit
)}
else
find_events_for_group(group, args, nil)
end
end
def find_events_for_group(
%Actor{} = group,
%{
page: page,
limit: limit
} = args,
_resolution
) do
{:ok,
Events.list_organized_events_for_group(
group,
:public,
Map.get(args, :after_datetime),
Map.get(args, :before_datetime),
page,
limit
)}
end
@spec restrict_fields_for_non_member_request(Actor.t()) :: Actor.t()
defp restrict_fields_for_non_member_request(%Actor{} = group) do
%Actor{
group
| followers: [],
followings: [],
organized_events: [],
comments: [],
feed_tokens: []
}
end
end