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Introduce group posts

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Signed-off-by: Thomas Citharel <tcit@tcit.fr>
This commit is contained in:
Thomas Citharel
2020-07-09 17:24:28 +02:00
parent bec1c69d4b
commit 9c9f1385fb
249 changed files with 11886 additions and 5023 deletions
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123
lib/federation/activity_pub/utils.ex
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@@ -8,13 +8,16 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
Various ActivityPub related utils.
"""
alias Mobilizon.Actors
alias Mobilizon.Actors.Actor
alias Mobilizon.Media.Picture
alias Mobilizon.Federation.ActivityPub
alias Mobilizon.Federation.ActivityPub.{Activity, Federator, Relay}
alias Mobilizon.Federation.ActivityPub.Types.Ownable
alias Mobilizon.Federation.ActivityStream.Converter
alias Mobilizon.Federation.HTTPSignatures
alias Mobilizon.Web.Endpoint
require Logger
@@ -114,6 +117,53 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
def maybe_federate(_), do: :ok
@doc """
Applies to activities sent by group members from outside this instance to a group of this instance,
we then need to relay (`Announce`) the object to other members on other instances.
"""
def maybe_relay_if_group_activity(activity, attributed_to \\ nil)
def maybe_relay_if_group_activity(
%Activity{local: false, data: %{"object" => object}},
_attributed_to
)
when is_map(object) do
do_maybe_relay_if_group_activity(object, object["attributedTo"])
end
# When doing a delete the object is just an AP ID string, so we pass the attributed_to actor as well
def maybe_relay_if_group_activity(
%Activity{local: false, data: %{"object" => object}},
%Actor{url: attributed_to_url}
)
when is_binary(object) do
do_maybe_relay_if_group_activity(object, attributed_to_url)
end
def maybe_relay_if_group_activity(_, _), do: :ok
defp do_maybe_relay_if_group_activity(object, attributed_to) when not is_nil(attributed_to) do
id = "#{Endpoint.url()}/announces/#{Ecto.UUID.generate()}"
case Actors.get_local_group_by_url(attributed_to) do
%Actor{} = group ->
case ActivityPub.announce(group, object, id, true, false) do
{:ok, _activity, _object} ->
Logger.info("Forwarded activity to external members of the group")
:ok
_ ->
Logger.info("Failed to forward activity to external members of the group")
:error
end
_ ->
:ok
end
end
defp do_maybe_relay_if_group_activity(_, _), do: :ok
@spec remote_actors(list(String.t())) :: list(Actor.t())
def remote_actors(recipients) do
recipients
@@ -135,7 +185,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
Adds an id and a published data if they aren't there,
also adds it to an included object
"""
def lazy_put_activity_defaults(map) do
def lazy_put_activity_defaults(%{"object" => _object} = map) do
if is_map(map["object"]) do
object = lazy_put_object_defaults(map["object"])
%{map | "object" => object}
@@ -147,7 +197,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
@doc """
Adds an id and published date if they aren't there.
"""
def lazy_put_object_defaults(map) do
def lazy_put_object_defaults(map) when is_map(map) do
Map.put_new_lazy(map, "published", &make_date/0)
end
@@ -175,25 +225,49 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
@doc """
Checks that an incoming AP object's actor matches the domain it came from.
Takes the actor or attributedTo attributes (considers only the first elem if they're an array)
"""
def origin_check?(id, %{"actor" => actor, "attributedTo" => _attributed_to} = params)
when not is_nil(actor) and actor != "" do
params = Map.delete(params, "attributedTo")
origin_check?(id, params)
end
def origin_check?(id, %{"attributedTo" => actor} = params) do
params = params |> Map.put("actor", actor) |> Map.delete("attributedTo")
origin_check?(id, params)
end
def origin_check?(id, %{"actor" => actor} = params) when not is_nil(actor) do
id_uri = URI.parse(id)
actor_uri = URI.parse(get_actor(params))
compare_uris?(actor_uri, id_uri)
def origin_check?(id, %{"actor" => actor} = params)
when not is_nil(actor) and is_list(actor) and length(actor) > 0 do
origin_check?(id, Map.put(params, "actor", hd(actor)))
end
def origin_check?(_id, %{"actor" => nil}), do: false
def origin_check?(id, %{"actor" => actor} = params)
when not is_nil(actor) do
actor = get_actor(params)
Logger.debug("Performing origin check on #{id} and #{actor} URIs")
compare_origins?(id, actor)
end
def origin_check?(_id, _data), do: false
def origin_check?(_id, %{"type" => type} = _params) when type in ["Actor", "Group"], do: true
def origin_check?(_id, %{"actor" => nil} = _args), do: false
def origin_check?(_id, _args), do: false
@spec compare_origins?(String.t(), String.t()) :: boolean()
def compare_origins?(url_1, url_2) when is_binary(url_1) and is_binary(url_2) do
uri_1 = URI.parse(url_1)
uri_2 = URI.parse(url_2)
compare_uris?(uri_1, uri_2)
end
defp compare_uris?(%URI{} = id_uri, %URI{} = other_uri), do: id_uri.host == other_uri.host
@spec origin_check_from_id?(String.t(), String.t()) :: boolean()
def origin_check_from_id?(id, other_id) when is_binary(other_id) do
id_uri = URI.parse(id)
other_uri = URI.parse(other_id)
@@ -201,9 +275,20 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
compare_uris?(id_uri, other_uri)
end
@spec origin_check_from_id?(String.t(), map()) :: boolean()
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}, object) do
case Ownable.group_actor(object) do
%Actor{type: :Group, id: group_id} ->
Actors.is_member?(actor_id, group_id)
_ ->
false
end
end
@doc """
Save picture data from %Plug.Upload{} and return AS Link data.
"""
@@ -274,7 +359,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
activity_id,
public
)
when type in ["Note", "Event", "ResourceCollection", "Document"] do
when type in ["Note", "Event", "ResourceCollection", "Document", "Todo"] do
do_make_announce_data(
actor,
object_actor_url,
@@ -367,6 +452,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
"type" => "Create",
"to" => object["to"],
"cc" => object["cc"],
"attributedTo" => object["attributedTo"] || object["actor"],
"actor" => object["actor"],
"object" => object,
"published" => make_date(),
@@ -494,7 +580,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
@doc """
Sign a request with the instance Relay actor.
"""
@spec sign_fetch_relay(List.t(), String.t(), String.t()) :: List.t()
@spec sign_fetch_relay(Enum.t(), String.t(), String.t()) :: Enum.t()
def sign_fetch_relay(headers, id, date) do
with %Actor{} = actor <- Relay.get_actor() do
sign_fetch(headers, actor, id, date)
@@ -504,7 +590,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
@doc """
Sign a request with an actor.
"""
@spec sign_fetch(List.t(), Actor.t(), String.t(), String.t()) :: List.t()
@spec sign_fetch(Enum.t(), Actor.t(), String.t(), String.t()) :: Enum.t()
def sign_fetch(headers, actor, id, date) do
if Mobilizon.Config.get([:activitypub, :sign_object_fetches]) do
headers ++ make_signature(actor, id, date)
@@ -516,7 +602,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
@doc """
Add the Date header to the request if we sign object fetches
"""
@spec maybe_date_fetch(List.t(), String.t()) :: List.t()
@spec maybe_date_fetch(Enum.t(), String.t()) :: Enum.t()
def maybe_date_fetch(headers, date) do
if Mobilizon.Config.get([:activitypub, :sign_object_fetches]) do
headers ++ [{:Date, date}]
@@ -524,4 +610,15 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
headers
end
end
def check_for_actor_key_rotation(%Actor{} = actor) do
if Actors.should_rotate_actor_key(actor) do
Actors.schedule_key_rotation(
actor,
Application.get_env(:mobilizon, :activitypub)[:actor_key_rotation_delay]
)
end
:ok
end
end