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Add the :role_needed_to_access permission check and refactor

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Signed-off-by: Thomas Citharel <tcit@tcit.fr>
This commit is contained in:
Thomas Citharel 2021-07-23 09:42:50 +02:00
parent 867e88481d
commit 0995043d04
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GPG key ID: A061B9DDE0CA0773
13 changed files with 131 additions and 79 deletions
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102
lib/federation/activity_pub/permission.ex Normal file
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@ -0,0 +1,102 @@
defmodule Mobilizon.Federation.ActivityPub.Permission do
@moduledoc """
Module to check group members permissions on objects
"""
alias Mobilizon.Actors
alias Mobilizon.Actors.Actor
alias Mobilizon.Federation.ActivityPub.Types.{Entity, Ownable}
require Logger
@doc """
Check that actor can access the object
"""
@spec can_access_group_object?(Actor.t(), Entity.t()) :: boolean()
def can_access_group_object?(%Actor{} = actor, object) do
can_manage_group_object?(:role_needed_to_access, actor, object)
end
@doc """
Check that actor can update the object
"""
@spec can_update_group_object?(Actor.t(), Entity.t()) :: boolean()
def can_update_group_object?(%Actor{} = actor, object) do
can_manage_group_object?(:role_needed_to_update, actor, object)
end
@doc """
Check that actor can delete the object
"""
@spec can_delete_group_object?(Actor.t(), Entity.t()) :: boolean()
def can_delete_group_object?(%Actor{} = actor, object) do
can_manage_group_object?(:role_needed_to_delete, actor, object)
end
@spec can_manage_group_object?(
:role_needed_to_access | :role_needed_to_update | :role_needed_to_delete,
Actor.t(),
any()
) :: boolean()
defp can_manage_group_object?(action_function, %Actor{url: actor_url} = actor, object) do
if Ownable.group_actor(object) != nil do
case apply(Ownable, action_function, [object]) do
role when role in [:member, :moderator, :administrator] ->
activity_actor_is_group_member?(actor, object, role)
_ ->
case action_function do
:role_needed_to_access ->
Logger.warn("Actor #{actor_url} can't access #{object.url}")
:role_needed_to_update ->
Logger.warn("Actor #{actor_url} can't update #{object.url}")
:role_needed_to_delete ->
Logger.warn("Actor #{actor_url} can't delete #{object.url}")
end
false
end
else
true
end
end
@spec activity_actor_is_group_member?(Actor.t(), Entity.t(), atom()) :: boolean()
defp activity_actor_is_group_member?(
%Actor{id: actor_id, url: actor_url},
object,
role
) do
case Ownable.group_actor(object) do
%Actor{type: :Group, id: group_id, url: group_url} ->
Logger.debug("Group object url is #{group_url}")
case role do
:moderator ->
Logger.debug(
"Checking if activity actor #{actor_url} is a moderator from group from #{object.url}"
)
Actors.is_moderator?(actor_id, group_id)
:administrator ->
Logger.debug(
"Checking if activity actor #{actor_url} is an administrator from group from #{object.url}"
)
Actors.is_administrator?(actor_id, group_id)
_ ->
Logger.debug(
"Checking if activity actor #{actor_url} is a member from group from #{object.url}"
)
Actors.is_member?(actor_id, group_id)
end
_ ->
false
end
end
end

12
lib/federation/activity_pub/transmogrifier.ex
View file

@ -17,7 +17,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
alias Mobilizon.Todos.{Todo, TodoList}
alias Mobilizon.Federation.ActivityPub
alias Mobilizon.Federation.ActivityPub.{Activity, Relay, Utils}
alias Mobilizon.Federation.ActivityPub.{Activity, Permission, Relay, Utils}
alias Mobilizon.Federation.ActivityPub.Actor, as: ActivityPubActor
alias Mobilizon.Federation.ActivityPub.Types.Ownable
alias Mobilizon.Federation.ActivityStream.{Converter, Convertible}
@ -409,7 +409,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
{:origin_check, true} <-
{:origin_check,
Utils.origin_check?(actor_url, update_data) ||
Utils.can_update_group_object?(actor, old_event)},
Permission.can_update_group_object?(actor, old_event)},
{:ok, %Activity{} = activity, %Event{} = new_event} <-
ActivityPub.update(old_event, object_data, false) do
{:ok, activity, new_event}
@ -454,7 +454,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
{:origin_check, true} <-
{:origin_check,
Utils.origin_check?(actor_url, update_data["object"]) ||
Utils.can_update_group_object?(actor, old_post)},
Permission.can_update_group_object?(actor, old_post)},
{:ok, %Activity{} = activity, %Post{} = new_post} <-
ActivityPub.update(old_post, object_data, false) do
{:ok, activity, new_post}
@ -482,7 +482,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
{:origin_check, true} <-
{:origin_check,
Utils.origin_check?(actor_url, update_data) ||
Utils.can_update_group_object?(actor, old_resource)},
Permission.can_update_group_object?(actor, old_resource)},
{:ok, %Activity{} = activity, %Resource{} = new_resource} <-
ActivityPub.update(old_resource, object_data, false) do
{:ok, activity, new_resource}
@ -585,7 +585,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
{:origin_check, true} <-
{:origin_check,
Utils.origin_check_from_id?(actor_url, object_id) ||
Utils.can_delete_group_object?(actor, object)},
Permission.can_delete_group_object?(actor, object)},
{:ok, activity, object} <- ActivityPub.delete(object, actor, false) do
{:ok, activity, object}
else
@ -629,7 +629,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
{:origin_check, true} <-
{:origin_check,
Utils.origin_check?(actor_url, data) ||
Utils.can_update_group_object?(actor, old_resource)},
Permission.can_update_group_object?(actor, old_resource)},
{:ok, activity, new_resource} <- ActivityPub.move(:resource, old_resource, object_data) do
{:ok, activity, new_resource}
else

1
lib/federation/activity_pub/types/actors.ex
View file

@ -104,6 +104,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Actors do
def group_actor(%Actor{} = actor), do: actor
def role_needed_to_access(%Actor{} = _group), do: :member
def role_needed_to_update(%Actor{} = _group), do: :administrator
def role_needed_to_delete(%Actor{} = _group), do: :administrator

1
lib/federation/activity_pub/types/comments.ex
View file

@ -104,6 +104,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Comments do
def group_actor(_), do: nil
def role_needed_to_access(%Comment{}), do: :member
def role_needed_to_update(%Comment{attributed_to: %Actor{} = _group}), do: :administrator
def role_needed_to_delete(%Comment{attributed_to_id: _attributed_to_id}), do: :administrator

1
lib/federation/activity_pub/types/discussions.ex
View file

@ -110,6 +110,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Discussions do
def group_actor(%Discussion{actor_id: actor_id}), do: Actors.get_actor(actor_id)
def role_needed_to_access(%Discussion{}), do: :member
def role_needed_to_update(%Discussion{}), do: :moderator
def role_needed_to_delete(%Discussion{}), do: :moderator

12
lib/federation/activity_pub/types/entity.ex
View file

@ -67,6 +67,9 @@ defprotocol Mobilizon.Federation.ActivityPub.Types.Ownable do
@doc "Returns the actor for the entity"
def actor(entity)
@spec role_needed_to_access(Entity.t()) :: group_role()
def role_needed_to_access(entity)
@spec role_needed_to_update(Entity.t()) :: group_role()
def role_needed_to_update(entity)
@ -82,6 +85,7 @@ end
defimpl Ownable, for: Event do
defdelegate group_actor(entity), to: Events
defdelegate actor(entity), to: Events
defdelegate role_needed_to_access(entity), to: Events
defdelegate role_needed_to_update(entity), to: Events
defdelegate role_needed_to_delete(entity), to: Events
end
@ -94,6 +98,7 @@ end
defimpl Ownable, for: Comment do
defdelegate group_actor(entity), to: Comments
defdelegate actor(entity), to: Comments
defdelegate role_needed_to_access(entity), to: Comments
defdelegate role_needed_to_update(entity), to: Comments
defdelegate role_needed_to_delete(entity), to: Comments
end
@ -106,6 +111,7 @@ end
defimpl Ownable, for: Post do
defdelegate group_actor(entity), to: Posts
defdelegate actor(entity), to: Posts
defdelegate role_needed_to_access(entity), to: Posts
defdelegate role_needed_to_update(entity), to: Posts
defdelegate role_needed_to_delete(entity), to: Posts
end
@ -118,6 +124,7 @@ end
defimpl Ownable, for: Actor do
defdelegate group_actor(entity), to: Actors
defdelegate actor(entity), to: Actors
defdelegate role_needed_to_access(entity), to: Actors
defdelegate role_needed_to_update(entity), to: Actors
defdelegate role_needed_to_delete(entity), to: Actors
end
@ -130,6 +137,7 @@ end
defimpl Ownable, for: TodoList do
defdelegate group_actor(entity), to: TodoLists
defdelegate actor(entity), to: TodoLists
defdelegate role_needed_to_access(entity), to: TodoLists
defdelegate role_needed_to_update(entity), to: TodoLists
defdelegate role_needed_to_delete(entity), to: TodoLists
end
@ -142,6 +150,7 @@ end
defimpl Ownable, for: Todo do
defdelegate group_actor(entity), to: Todos
defdelegate actor(entity), to: Todos
defdelegate role_needed_to_access(entity), to: Todos
defdelegate role_needed_to_update(entity), to: Todos
defdelegate role_needed_to_delete(entity), to: Todos
end
@ -154,6 +163,7 @@ end
defimpl Ownable, for: Resource do
defdelegate group_actor(entity), to: Resources
defdelegate actor(entity), to: Resources
defdelegate role_needed_to_access(entity), to: Resources
defdelegate role_needed_to_update(entity), to: Resources
defdelegate role_needed_to_delete(entity), to: Resources
end
@ -166,6 +176,7 @@ end
defimpl Ownable, for: Discussion do
defdelegate group_actor(entity), to: Discussions
defdelegate actor(entity), to: Discussions
defdelegate role_needed_to_access(entity), to: Discussions
defdelegate role_needed_to_update(entity), to: Discussions
defdelegate role_needed_to_delete(entity), to: Discussions
end
@ -173,6 +184,7 @@ end
defimpl Ownable, for: Tombstone do
defdelegate group_actor(entity), to: Tombstones
defdelegate actor(entity), to: Tombstones
defdelegate role_needed_to_access(entity), to: Tombstones
defdelegate role_needed_to_update(entity), to: Tombstones
defdelegate role_needed_to_delete(entity), to: Tombstones
end

2
lib/federation/activity_pub/types/events.ex
View file

@ -95,6 +95,8 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Events do
def group_actor(_), do: nil
def role_needed_to_access(%Event{draft: false}), do: :member
def role_needed_to_access(%Event{}), do: :moderator
def role_needed_to_update(%Event{attributed_to: %Actor{} = _group}), do: :moderator
def role_needed_to_delete(%Event{attributed_to_id: _attributed_to_id}), do: :moderator
def role_needed_to_delete(_), do: nil

2
lib/federation/activity_pub/types/posts.ex
View file

@ -91,6 +91,8 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Posts do
def group_actor(%Post{attributed_to_id: attributed_to_id}),
do: Actors.get_actor(attributed_to_id)
def role_needed_to_access(%Post{draft: false}), do: :member
def role_needed_to_access(%Post{}), do: :moderator
def role_needed_to_update(%Post{}), do: :moderator
def role_needed_to_delete(%Post{}), do: :moderator
end

1
lib/federation/activity_pub/types/resources.ex
View file

@ -170,6 +170,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Resources do
def group_actor(%Resource{actor_id: actor_id}), do: Actors.get_actor(actor_id)
def role_needed_to_access(%Resource{}), do: :member
def role_needed_to_update(%Resource{}), do: :member
def role_needed_to_delete(%Resource{}), do: :member
end

1
lib/federation/activity_pub/types/todo_lists.ex
View file

@ -68,6 +68,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.TodoLists do
def group_actor(%TodoList{actor_id: actor_id}), do: Actors.get_actor(actor_id)
def role_needed_to_access(%TodoList{}), do: :member
def role_needed_to_update(%TodoList{}), do: :member
def role_needed_to_delete(%TodoList{}), do: :member
end

1
lib/federation/activity_pub/types/todos.ex
View file

@ -80,6 +80,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Todos do
end
end
def role_needed_to_access(%Todo{}), do: :member
def role_needed_to_update(%Todo{}), do: :member
def role_needed_to_delete(%Todo{}), do: :member
end

1
lib/federation/activity_pub/types/tombstones.ex
View file

@ -12,6 +12,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Tombstones do
def group_actor(_), do: nil
def role_needed_to_access(%Actor{}), do: nil
def role_needed_to_update(%Actor{}), do: nil
def role_needed_to_delete(%Actor{}), do: nil
end

73
lib/federation/activity_pub/utils.ex
View file

@ -15,7 +15,6 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
alias Mobilizon.Federation.ActivityPub
alias Mobilizon.Federation.ActivityPub.{Activity, Federator, Relay}
alias Mobilizon.Federation.ActivityPub.Actor, as: ActivityPubActor
alias Mobilizon.Federation.ActivityPub.Types.Ownable
alias Mobilizon.Federation.ActivityStream.Converter
alias Mobilizon.Federation.HTTPSignatures
alias Mobilizon.Web.Endpoint
@ -291,43 +290,6 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
def origin_check_from_id?(id, %{"id" => other_id} = _params) when is_binary(other_id),
do: origin_check_from_id?(id, other_id)
def activity_actor_is_group_member?(
%Actor{id: actor_id, url: actor_url},
object,
role \\ :member
) do
case Ownable.group_actor(object) do
%Actor{type: :Group, id: group_id, url: group_url} ->
Logger.debug("Group object url is #{group_url}")
case role do
:moderator ->
Logger.debug(
"Checking if activity actor #{actor_url} is a moderator from group from #{object.url}"
)
Actors.is_moderator?(actor_id, group_id)
:administrator ->
Logger.debug(
"Checking if activity actor #{actor_url} is an administrator from group from #{object.url}"
)
Actors.is_administrator?(actor_id, group_id)
_ ->
Logger.debug(
"Checking if activity actor #{actor_url} is a member from group from #{object.url}"
)
Actors.is_member?(actor_id, group_id)
end
_ ->
false
end
end
@doc """
Return AS Link data from
@ -662,41 +624,6 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
:ok
end
def can_update_group_object?(%Actor{} = actor, object) do
can_manage_group_object?(:role_needed_to_update, actor, object)
end
def can_delete_group_object?(%Actor{} = actor, object) do
can_manage_group_object?(:role_needed_to_delete, actor, object)
end
@spec can_manage_group_object?(
:role_needed_to_update | :role_needed_to_delete,
Actor.t(),
any()
) :: boolean()
defp can_manage_group_object?(action_function, %Actor{url: actor_url} = actor, object) do
if Ownable.group_actor(object) != nil do
case apply(Ownable, action_function, [object]) do
role when role in [:member, :moderator, :administrator] ->
activity_actor_is_group_member?(actor, object, role)
_ ->
case action_function do
:role_needed_to_update ->
Logger.warn("Actor #{actor_url} can't update #{object.url}")
:role_needed_to_delete ->
Logger.warn("Actor #{actor_url} can't delete #{object.url}")
end
false
end
else
true
end
end
@spec label_in_collection?(any(), any()) :: boolean()
defp label_in_collection?(url, coll) when is_binary(coll), do: url == coll
defp label_in_collection?(url, coll) when is_list(coll), do: url in coll