1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.Pipeline do
alias Pleroma.Activity
alias Pleroma.Config
alias Pleroma.Object
alias Pleroma.Repo
alias Pleroma.Web.ActivityPub
alias Pleroma.Web.ActivityPub.Visibility
alias Pleroma.Web.Federator
@side_effects Config.get([:pipeline, :side_effects])
@federator Config.get([:pipeline, :federator])
@object_validator Config.get([:pipeline, :object_validator])
@mrf Config.get([:pipeline, :mrf])
@activity_pub Config.get([:pipeline, :activity_pub])
@config Config.get([:pipeline, :config])
# Elixir 1.9 compiler complains unless we do it like this
defp fallback(a, b), do: a || b
defp side_effects(), do: fallback(@side_effects, ActivityPub.SideEffects)
defp federator(), do: fallback(@federator, Federator)
defp object_validator(), do: fallback(@object_validator, ActivityPub.ObjectValidator)
defp mrf(), do: fallback(@mrf, ActivityPub.MRF)
defp activity_pub(), do: fallback(@activity_pub, ActivityPub.ActivityPub)
defp config(), do: fallback(@config, Pleroma.Config)
@spec common_pipeline(map(), keyword()) ::
{:ok, Activity.t() | Object.t(), keyword()} | {:error, any()}
def common_pipeline(object, meta) do
case Repo.transaction(fn -> do_common_pipeline(object, meta) end) do
{:ok, {:ok, activity, meta}} ->
side_effects().handle_after_transaction(meta)
{:ok, activity, meta}
{:ok, value} ->
value
{:error, e} ->
{:error, e}
{:reject, e} ->
{:reject, e}
end
end
def do_common_pipeline(object, meta) do
with {_, {:ok, validated_object, meta}} <-
{:validate_object, object_validator().validate(object, meta)},
{_, {:ok, mrfd_object, meta}} <-
{:mrf_object, mrf().pipeline_filter(validated_object, meta)},
{_, {:ok, activity, meta}} <-
{:persist_object, activity_pub().persist(mrfd_object, meta)},
{_, {:ok, activity, meta}} <-
{:execute_side_effects, side_effects().handle(activity, meta)},
{_, {:ok, _}} <- {:federation, maybe_federate(activity, meta)} do
{:ok, activity, meta}
else
{:mrf_object, {:reject, message, _}} -> {:reject, message}
e -> {:error, e}
end
end
defp maybe_federate(%Object{}, _), do: {:ok, :not_federated}
defp maybe_federate(%Activity{} = activity, meta) do
with {:ok, local} <- Keyword.fetch(meta, :local) do
do_not_federate = meta[:do_not_federate] || !config().get([:instance, :federating])
if !do_not_federate and local and not Visibility.is_local_public?(activity) do
activity =
if object = Keyword.get(meta, :object_data) do
%{activity | data: Map.put(activity.data, "object", object)}
else
activity
end
federator().publish(activity)
{:ok, :federated}
else
{:ok, :not_federated}
end
else
_e -> {:error, :badarg}
end
end
end
|
