akkoma/test/pleroma/web/activity_pub/mrf/simple_policy_test.exs

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# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
use Pleroma.DataCase
import Pleroma.Factory
alias Pleroma.Web.ActivityPub.MRF.SimplePolicy
alias Pleroma.Web.CommonAPI
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setup do:
clear_config(:mrf_simple,
media_removal: [],
media_nsfw: [],
federated_timeline_removal: [],
report_removal: [],
reject: [],
followers_only: [],
accept: [],
avatar_removal: [],
banner_removal: [],
reject_deletes: []
)
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describe "when :media_removal" do
test "is empty" do
clear_config([:mrf_simple, :media_removal], [])
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media_message = build_media_message()
media_update_message = build_media_update_message()
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local_message = build_local_message()
assert SimplePolicy.filter(media_message) == {:ok, media_message}
assert SimplePolicy.filter(media_update_message) == {:ok, media_update_message}
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assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "has a matching host" do
clear_config([:mrf_simple, :media_removal], [{"remote.instance", "Some reason"}])
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media_message = build_media_message()
media_update_message = build_media_update_message()
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local_message = build_local_message()
assert SimplePolicy.filter(media_message) ==
{:ok,
media_message
|> Map.put("object", Map.delete(media_message["object"], "attachment"))}
assert SimplePolicy.filter(media_update_message) ==
{:ok,
media_update_message
|> Map.put("object", Map.delete(media_update_message["object"], "attachment"))}
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assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "match with wildcard domain" do
clear_config([:mrf_simple, :media_removal], [{"*.remote.instance", "Whatever reason"}])
media_message = build_media_message()
media_update_message = build_media_update_message()
local_message = build_local_message()
assert SimplePolicy.filter(media_message) ==
{:ok,
media_message
|> Map.put("object", Map.delete(media_message["object"], "attachment"))}
assert SimplePolicy.filter(media_update_message) ==
{:ok,
media_update_message
|> Map.put("object", Map.delete(media_update_message["object"], "attachment"))}
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
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end
describe "when :media_nsfw" do
test "is empty" do
clear_config([:mrf_simple, :media_nsfw], [])
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media_message = build_media_message()
media_update_message = build_media_update_message()
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local_message = build_local_message()
assert SimplePolicy.filter(media_message) == {:ok, media_message}
assert SimplePolicy.filter(media_update_message) == {:ok, media_update_message}
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assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "has a matching host" do
clear_config([:mrf_simple, :media_nsfw], [{"remote.instance", "Whetever"}])
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media_message = build_media_message()
media_update_message = build_media_update_message()
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local_message = build_local_message()
assert SimplePolicy.filter(media_message) ==
{:ok, put_in(media_message, ["object", "sensitive"], true)}
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assert SimplePolicy.filter(media_update_message) ==
{:ok, put_in(media_update_message, ["object", "sensitive"], true)}
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assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "match with wildcard domain" do
clear_config([:mrf_simple, :media_nsfw], [{"*.remote.instance", "yeah yeah"}])
media_message = build_media_message()
media_update_message = build_media_update_message()
local_message = build_local_message()
assert SimplePolicy.filter(media_message) ==
{:ok, put_in(media_message, ["object", "sensitive"], true)}
assert SimplePolicy.filter(media_update_message) ==
{:ok, put_in(media_update_message, ["object", "sensitive"], true)}
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
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end
defp build_media_message do
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%{
"actor" => "https://remote.instance/users/bob",
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"type" => "Create",
"object" => %{
"attachment" => [%{}],
"tag" => ["foo"],
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"sensitive" => false
}
}
end
defp build_media_update_message do
%{
"actor" => "https://remote.instance/users/bob",
"type" => "Update",
"object" => %{
"attachment" => [%{}],
"tag" => ["foo"],
"sensitive" => false
}
}
end
describe "when :report_removal" do
test "is empty" do
clear_config([:mrf_simple, :report_removal], [])
report_message = build_report_message()
local_message = build_local_message()
assert SimplePolicy.filter(report_message) == {:ok, report_message}
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "has a matching host" do
clear_config([:mrf_simple, :report_removal], [{"remote.instance", "muh"}])
report_message = build_report_message()
local_message = build_local_message()
assert {:reject, _} = SimplePolicy.filter(report_message)
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "match with wildcard domain" do
clear_config([:mrf_simple, :report_removal], [{"*.remote.instance", "suya"}])
report_message = build_report_message()
local_message = build_local_message()
assert {:reject, _} = SimplePolicy.filter(report_message)
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
end
defp build_report_message do
%{
"actor" => "https://remote.instance/users/bob",
"type" => "Flag"
}
end
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describe "when :federated_timeline_removal" do
test "is empty" do
clear_config([:mrf_simple, :federated_timeline_removal], [])
{_, ftl_message} = build_ftl_actor_and_message()
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local_message = build_local_message()
assert SimplePolicy.filter(ftl_message) == {:ok, ftl_message}
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "has a matching host" do
{actor, ftl_message} = build_ftl_actor_and_message()
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ftl_message_actor_host =
ftl_message
|> Map.fetch!("actor")
|> URI.parse()
|> Map.fetch!(:host)
clear_config([:mrf_simple, :federated_timeline_removal], [{ftl_message_actor_host, "uwu"}])
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local_message = build_local_message()
assert {:ok, ftl_message} = SimplePolicy.filter(ftl_message)
assert actor.follower_address in ftl_message["to"]
refute actor.follower_address in ftl_message["cc"]
refute "https://www.w3.org/ns/activitystreams#Public" in ftl_message["to"]
assert "https://www.w3.org/ns/activitystreams#Public" in ftl_message["cc"]
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "match with wildcard domain" do
{actor, ftl_message} = build_ftl_actor_and_message()
ftl_message_actor_host =
ftl_message
|> Map.fetch!("actor")
|> URI.parse()
|> Map.fetch!(:host)
clear_config([:mrf_simple, :federated_timeline_removal], [
{"*." <> ftl_message_actor_host, "owo"}
])
local_message = build_local_message()
assert {:ok, ftl_message} = SimplePolicy.filter(ftl_message)
assert actor.follower_address in ftl_message["to"]
refute actor.follower_address in ftl_message["cc"]
refute "https://www.w3.org/ns/activitystreams#Public" in ftl_message["to"]
assert "https://www.w3.org/ns/activitystreams#Public" in ftl_message["cc"]
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "has a matching host but only as:Public in to" do
{_actor, ftl_message} = build_ftl_actor_and_message()
ftl_message_actor_host =
ftl_message
|> Map.fetch!("actor")
|> URI.parse()
|> Map.fetch!(:host)
ftl_message = Map.put(ftl_message, "cc", [])
clear_config([:mrf_simple, :federated_timeline_removal], [
{ftl_message_actor_host, "spiderwaifu goes 88w88"}
])
assert {:ok, ftl_message} = SimplePolicy.filter(ftl_message)
refute "https://www.w3.org/ns/activitystreams#Public" in ftl_message["to"]
assert "https://www.w3.org/ns/activitystreams#Public" in ftl_message["cc"]
end
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end
describe "describe/1" do
test "returns a description of the policy" do
clear_config([:mrf_simple, :reject], [
{"remote.instance", "did not give my catboy a burg"}
])
assert {:ok, %{mrf_simple: %{reject: ["remote.instance"]}}} = SimplePolicy.describe()
end
test "excludes domains listed in :transparency_exclusions" do
clear_config([:mrf, :transparency_exclusions], [{"remote.instance", ":("}])
clear_config([:mrf_simple, :reject], [
{"remote.instance", "did not give my catboy a burg"}
])
{:ok, description} = SimplePolicy.describe()
assert %{mrf_simple: %{reject: []}} = description
assert description[:mrf_simple_info][:reject] == nil
end
test "obfuscates domains listed in :transparency_obfuscate_domains" do
clear_config([:mrf, :transparency_obfuscate_domains], ["remote.instance", "a.b"])
clear_config([:mrf_simple, :reject], [
{"remote.instance", "did not give my catboy a burg"},
{"a.b", "spam-poked me on facebook in 2006"}
])
assert {:ok,
%{
mrf_simple: %{reject: ["rem***.*****nce", "*.b"]},
mrf_simple_info: %{reject: %{"rem***.*****nce" => %{}}}
}} = SimplePolicy.describe()
end
end
defp build_ftl_actor_and_message do
actor = insert(:user)
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{actor,
%{
"actor" => actor.ap_id,
"to" => ["https://www.w3.org/ns/activitystreams#Public", "http://foo.bar/baz"],
"cc" => [actor.follower_address, "http://foo.bar/qux"]
}}
end
describe "when :reject" do
test "is empty" do
clear_config([:mrf_simple, :reject], [])
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remote_message = build_remote_message()
assert SimplePolicy.filter(remote_message) == {:ok, remote_message}
end
test "activity has a matching host" do
clear_config([:mrf_simple, :reject], [{"remote.instance", ""}])
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remote_message = build_remote_message()
assert {:reject, _} = SimplePolicy.filter(remote_message)
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end
test "activity matches with wildcard domain" do
clear_config([:mrf_simple, :reject], [{"*.remote.instance", ""}])
remote_message = build_remote_message()
assert {:reject, _} = SimplePolicy.filter(remote_message)
end
test "actor has a matching host" do
clear_config([:mrf_simple, :reject], [{"remote.instance", ""}])
remote_user = build_remote_user()
assert {:reject, _} = SimplePolicy.filter(remote_user)
end
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test "reject Announce when object would be rejected" do
clear_config([:mrf_simple, :reject], [{"blocked.tld", ""}])
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announce = %{
"type" => "Announce",
"actor" => "https://okay.tld/users/alice",
"object" => %{"type" => "Note", "actor" => "https://blocked.tld/users/bob"}
}
assert {:reject, _} = SimplePolicy.filter(announce)
end
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test "reject by URI object" do
clear_config([:mrf_simple, :reject], [{"blocked.tld", ""}])
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announce = %{
"type" => "Announce",
"actor" => "https://okay.tld/users/alice",
"object" => "https://blocked.tld/activities/1"
}
assert {:reject, _} = SimplePolicy.filter(announce)
end
test "accept by matching context URI if :handle_threads is disabled" do
clear_config([:mrf_simple, :reject], [{"blocked.tld", ""}])
clear_config([:mrf_simple, :handle_threads], false)
remote_message =
build_remote_message()
|> Map.put("context", "https://blocked.tld/contexts/abc")
assert {:ok, _} = SimplePolicy.filter(remote_message)
end
test "accept by matching conversation field if :handle_threads is disabled" do
clear_config([:mrf_simple, :reject], [{"blocked.tld", ""}])
clear_config([:mrf_simple, :handle_threads], false)
remote_message =
build_remote_message()
|> Map.put(
"conversation",
"tag:blocked.tld,1997-06-25:objectId=12345:objectType=Conversation"
)
assert {:ok, _} = SimplePolicy.filter(remote_message)
end
test "accept by matching reply ID if :handle_threads is disabled" do
clear_config([:mrf_simple, :reject], [{"blocked.tld", ""}])
clear_config([:mrf_simple, :handle_threads], false)
remote_message =
build_remote_message()
|> Map.put("type", "Create")
|> Map.put("object", %{
"type" => "Note",
"inReplyTo" => "https://blocked.tld/objects/1"
})
assert {:ok, _} = SimplePolicy.filter(remote_message)
end
test "reject by matching context URI if :handle_threads is enabled" do
clear_config([:mrf_simple, :reject], [{"blocked.tld", ""}])
clear_config([:mrf_simple, :handle_threads], true)
remote_message =
build_remote_message()
|> Map.put("context", "https://blocked.tld/contexts/abc")
assert {:reject, _} = SimplePolicy.filter(remote_message)
end
test "reject by matching conversation field if :handle_threads is enabled" do
clear_config([:mrf_simple, :reject], [{"blocked.tld", ""}])
clear_config([:mrf_simple, :handle_threads], true)
remote_message =
build_remote_message()
|> Map.put(
"conversation",
"tag:blocked.tld,1997-06-25:objectId=12345:objectType=Conversation"
)
assert {:reject, _} = SimplePolicy.filter(remote_message)
end
test "reject by matching reply ID if :handle_threads is enabled" do
clear_config([:mrf_simple, :reject], [{"blocked.tld", ""}])
clear_config([:mrf_simple, :handle_threads], true)
remote_message =
build_remote_message()
|> Map.put("type", "Create")
|> Map.put("object", %{
"type" => "Note",
"inReplyTo" => "https://blocked.tld/objects/1"
})
assert {:reject, _} = SimplePolicy.filter(remote_message)
end
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end
describe "when :followers_only" do
test "is empty" do
clear_config([:mrf_simple, :followers_only], [])
{_, ftl_message} = build_ftl_actor_and_message()
local_message = build_local_message()
assert SimplePolicy.filter(ftl_message) == {:ok, ftl_message}
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "has a matching host" do
actor = insert(:user)
following_user = insert(:user)
non_following_user = insert(:user)
{:ok, _, _, _} = CommonAPI.follow(following_user, actor)
activity = %{
"actor" => actor.ap_id,
"to" => [
"https://www.w3.org/ns/activitystreams#Public",
following_user.ap_id,
non_following_user.ap_id
],
"cc" => [actor.follower_address, "http://foo.bar/qux"]
}
dm_activity = %{
"actor" => actor.ap_id,
"to" => [
following_user.ap_id,
non_following_user.ap_id
],
"cc" => []
}
actor_domain =
activity
|> Map.fetch!("actor")
|> URI.parse()
|> Map.fetch!(:host)
clear_config([:mrf_simple, :followers_only], [{actor_domain, ""}])
assert {:ok, new_activity} = SimplePolicy.filter(activity)
assert actor.follower_address in new_activity["cc"]
assert following_user.ap_id in new_activity["to"]
refute "https://www.w3.org/ns/activitystreams#Public" in new_activity["to"]
refute "https://www.w3.org/ns/activitystreams#Public" in new_activity["cc"]
refute non_following_user.ap_id in new_activity["to"]
refute non_following_user.ap_id in new_activity["cc"]
assert {:ok, new_dm_activity} = SimplePolicy.filter(dm_activity)
assert new_dm_activity["to"] == [following_user.ap_id]
assert new_dm_activity["cc"] == []
end
end
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describe "when :accept" do
test "is empty" do
clear_config([:mrf_simple, :accept], [])
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local_message = build_local_message()
remote_message = build_remote_message()
assert SimplePolicy.filter(local_message) == {:ok, local_message}
assert SimplePolicy.filter(remote_message) == {:ok, remote_message}
end
test "is not empty but activity doesn't have a matching host" do
clear_config([:mrf_simple, :accept], [{"non.matching.remote", ""}])
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local_message = build_local_message()
remote_message = build_remote_message()
assert SimplePolicy.filter(local_message) == {:ok, local_message}
assert {:reject, _} = SimplePolicy.filter(remote_message)
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end
test "activity has a matching host" do
clear_config([:mrf_simple, :accept], [{"remote.instance", ""}])
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local_message = build_local_message()
remote_message = build_remote_message()
assert SimplePolicy.filter(local_message) == {:ok, local_message}
assert SimplePolicy.filter(remote_message) == {:ok, remote_message}
end
test "activity matches with wildcard domain" do
clear_config([:mrf_simple, :accept], [{"*.remote.instance", ""}])
local_message = build_local_message()
remote_message = build_remote_message()
assert SimplePolicy.filter(local_message) == {:ok, local_message}
assert SimplePolicy.filter(remote_message) == {:ok, remote_message}
end
test "actor has a matching host" do
clear_config([:mrf_simple, :accept], [{"remote.instance", ""}])
remote_user = build_remote_user()
assert SimplePolicy.filter(remote_user) == {:ok, remote_user}
end
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end
describe "when :avatar_removal" do
test "is empty" do
clear_config([:mrf_simple, :avatar_removal], [])
remote_user = build_remote_user()
assert SimplePolicy.filter(remote_user) == {:ok, remote_user}
end
test "is not empty but it doesn't have a matching host" do
clear_config([:mrf_simple, :avatar_removal], [{"non.matching.remote", ""}])
remote_user = build_remote_user()
assert SimplePolicy.filter(remote_user) == {:ok, remote_user}
end
test "has a matching host" do
clear_config([:mrf_simple, :avatar_removal], [{"remote.instance", ""}])
remote_user = build_remote_user()
{:ok, filtered} = SimplePolicy.filter(remote_user)
refute filtered["icon"]
end
test "match with wildcard domain" do
clear_config([:mrf_simple, :avatar_removal], [{"*.remote.instance", ""}])
remote_user = build_remote_user()
{:ok, filtered} = SimplePolicy.filter(remote_user)
refute filtered["icon"]
end
end
describe "when :banner_removal" do
test "is empty" do
clear_config([:mrf_simple, :banner_removal], [])
remote_user = build_remote_user()
assert SimplePolicy.filter(remote_user) == {:ok, remote_user}
end
test "is not empty but it doesn't have a matching host" do
clear_config([:mrf_simple, :banner_removal], [{"non.matching.remote", ""}])
remote_user = build_remote_user()
assert SimplePolicy.filter(remote_user) == {:ok, remote_user}
end
test "has a matching host" do
clear_config([:mrf_simple, :banner_removal], [{"remote.instance", ""}])
remote_user = build_remote_user()
{:ok, filtered} = SimplePolicy.filter(remote_user)
refute filtered["image"]
end
test "match with wildcard domain" do
clear_config([:mrf_simple, :banner_removal], [{"*.remote.instance", ""}])
remote_user = build_remote_user()
{:ok, filtered} = SimplePolicy.filter(remote_user)
refute filtered["image"]
end
end
describe "when :reject_deletes is empty" do
setup do: clear_config([:mrf_simple, :reject_deletes], [])
test "it accepts deletions even from rejected servers" do
clear_config([:mrf_simple, :reject], [{"remote.instance", ""}])
deletion_message = build_remote_deletion_message()
assert SimplePolicy.filter(deletion_message) == {:ok, deletion_message}
end
test "it accepts deletions even from non-whitelisted servers" do
clear_config([:mrf_simple, :accept], [{"non.matching.remote", ""}])
deletion_message = build_remote_deletion_message()
assert SimplePolicy.filter(deletion_message) == {:ok, deletion_message}
end
end
describe "when :reject_deletes is not empty but it doesn't have a matching host" do
setup do: clear_config([:mrf_simple, :reject_deletes], [{"non.matching.remote", ""}])
test "it accepts deletions even from rejected servers" do
clear_config([:mrf_simple, :reject], [{"remote.instance", ""}])
deletion_message = build_remote_deletion_message()
assert SimplePolicy.filter(deletion_message) == {:ok, deletion_message}
end
test "it accepts deletions even from non-whitelisted servers" do
clear_config([:mrf_simple, :accept], [{"non.matching.remote", ""}])
deletion_message = build_remote_deletion_message()
assert SimplePolicy.filter(deletion_message) == {:ok, deletion_message}
end
end
describe "when :reject_deletes has a matching host" do
setup do: clear_config([:mrf_simple, :reject_deletes], [{"remote.instance", ""}])
test "it rejects the deletion" do
deletion_message = build_remote_deletion_message()
assert {:reject, _} = SimplePolicy.filter(deletion_message)
end
end
describe "when :reject_deletes match with wildcard domain" do
setup do: clear_config([:mrf_simple, :reject_deletes], [{"*.remote.instance", ""}])
test "it rejects the deletion" do
deletion_message = build_remote_deletion_message()
assert {:reject, _} = SimplePolicy.filter(deletion_message)
end
end
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defp build_local_message do
%{
"actor" => "#{Pleroma.Web.Endpoint.url()}/users/alice",
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"to" => [],
"cc" => []
}
end
defp build_remote_message do
%{"actor" => "https://remote.instance/users/bob"}
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end
defp build_remote_user do
%{
"id" => "https://remote.instance/users/bob",
"icon" => %{
"url" => "http://example.com/image.jpg",
"type" => "Image"
},
"image" => %{
"url" => "http://example.com/image.jpg",
"type" => "Image"
},
"type" => "Person"
}
end
defp build_remote_deletion_message do
%{
"type" => "Delete",
"actor" => "https://remote.instance/users/bob"
}
end
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end