Feature/1087 wildcard option for blocks

This commit is contained in:
Alexander Strizhakov 2019-07-22 14:33:58 +00:00 committed by kaniini
parent 674ad5e1df
commit b70e659304
7 changed files with 244 additions and 18 deletions

View file

@ -873,10 +873,13 @@ defmodule Pleroma.User do
def blocks?(%User{info: info} = _user, %{ap_id: ap_id}) do
blocks = info.blocks
domain_blocks = info.domain_blocks
domain_blocks = Pleroma.Web.ActivityPub.MRF.subdomains_regex(info.domain_blocks)
%{host: host} = URI.parse(ap_id)
Enum.member?(blocks, ap_id) || Enum.any?(domain_blocks, &(&1 == host))
Enum.member?(blocks, ap_id) ||
Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, host)
end
def subscribed_to?(user, %{ap_id: ap_id}) do

View file

@ -25,4 +25,14 @@ defmodule Pleroma.Web.ActivityPub.MRF do
defp get_policies(policy) when is_atom(policy), do: [policy]
defp get_policies(policies) when is_list(policies), do: policies
defp get_policies(_), do: []
@spec subdomains_regex([String.t()]) :: [Regex.t()]
def subdomains_regex(domains) when is_list(domains) do
for domain <- domains, do: ~r(^#{String.replace(domain, "*.", "(.*\\.)*")}$)
end
@spec subdomain_match?([Regex.t()], String.t()) :: boolean()
def subdomain_match?(domains, host) do
Enum.any?(domains, fn domain -> Regex.match?(domain, host) end)
end
end

View file

@ -4,22 +4,29 @@
defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
alias Pleroma.User
alias Pleroma.Web.ActivityPub.MRF
@moduledoc "Filter activities depending on their origin instance"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour MRF
defp check_accept(%{host: actor_host} = _actor_info, object) do
accepts = Pleroma.Config.get([:mrf_simple, :accept])
accepts =
Pleroma.Config.get([:mrf_simple, :accept])
|> MRF.subdomains_regex()
cond do
accepts == [] -> {:ok, object}
actor_host == Pleroma.Config.get([Pleroma.Web.Endpoint, :url, :host]) -> {:ok, object}
Enum.member?(accepts, actor_host) -> {:ok, object}
MRF.subdomain_match?(accepts, actor_host) -> {:ok, object}
true -> {:reject, nil}
end
end
defp check_reject(%{host: actor_host} = _actor_info, object) do
if Enum.member?(Pleroma.Config.get([:mrf_simple, :reject]), actor_host) do
rejects =
Pleroma.Config.get([:mrf_simple, :reject])
|> MRF.subdomains_regex()
if MRF.subdomain_match?(rejects, actor_host) do
{:reject, nil}
else
{:ok, object}
@ -31,8 +38,12 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
%{"type" => "Create", "object" => %{"attachment" => child_attachment}} = object
)
when length(child_attachment) > 0 do
media_removal =
Pleroma.Config.get([:mrf_simple, :media_removal])
|> MRF.subdomains_regex()
object =
if Enum.member?(Pleroma.Config.get([:mrf_simple, :media_removal]), actor_host) do
if MRF.subdomain_match?(media_removal, actor_host) do
child_object = Map.delete(object["object"], "attachment")
Map.put(object, "object", child_object)
else
@ -51,8 +62,12 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
"object" => child_object
} = object
) do
media_nsfw =
Pleroma.Config.get([:mrf_simple, :media_nsfw])
|> MRF.subdomains_regex()
object =
if Enum.member?(Pleroma.Config.get([:mrf_simple, :media_nsfw]), actor_host) do
if MRF.subdomain_match?(media_nsfw, actor_host) do
tags = (child_object["tag"] || []) ++ ["nsfw"]
child_object = Map.put(child_object, "tag", tags)
child_object = Map.put(child_object, "sensitive", true)
@ -67,12 +82,12 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
defp check_media_nsfw(_actor_info, object), do: {:ok, object}
defp check_ftl_removal(%{host: actor_host} = _actor_info, object) do
timeline_removal =
Pleroma.Config.get([:mrf_simple, :federated_timeline_removal])
|> MRF.subdomains_regex()
object =
with true <-
Enum.member?(
Pleroma.Config.get([:mrf_simple, :federated_timeline_removal]),
actor_host
),
with true <- MRF.subdomain_match?(timeline_removal, actor_host),
user <- User.get_cached_by_ap_id(object["actor"]),
true <- "https://www.w3.org/ns/activitystreams#Public" in object["to"] do
to =
@ -94,7 +109,11 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
end
defp check_report_removal(%{host: actor_host} = _actor_info, %{"type" => "Flag"} = object) do
if actor_host in Pleroma.Config.get([:mrf_simple, :report_removal]) do
report_removal =
Pleroma.Config.get([:mrf_simple, :report_removal])
|> MRF.subdomains_regex()
if MRF.subdomain_match?(report_removal, actor_host) do
{:reject, nil}
else
{:ok, object}
@ -104,7 +123,11 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
defp check_report_removal(_actor_info, object), do: {:ok, object}
defp check_avatar_removal(%{host: actor_host} = _actor_info, %{"icon" => _icon} = object) do
if actor_host in Pleroma.Config.get([:mrf_simple, :avatar_removal]) do
avatar_removal =
Pleroma.Config.get([:mrf_simple, :avatar_removal])
|> MRF.subdomains_regex()
if MRF.subdomain_match?(avatar_removal, actor_host) do
{:ok, Map.delete(object, "icon")}
else
{:ok, object}
@ -114,7 +137,11 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
defp check_avatar_removal(_actor_info, object), do: {:ok, object}
defp check_banner_removal(%{host: actor_host} = _actor_info, %{"image" => _image} = object) do
if actor_host in Pleroma.Config.get([:mrf_simple, :banner_removal]) do
banner_removal =
Pleroma.Config.get([:mrf_simple, :banner_removal])
|> MRF.subdomains_regex()
if MRF.subdomain_match?(banner_removal, actor_host) do
{:ok, Map.delete(object, "image")}
else
{:ok, object}

View file

@ -87,8 +87,13 @@ defmodule Pleroma.Web.ActivityPub.Publisher do
if public do
true
else
inbox_info = URI.parse(inbox)
!Enum.member?(Config.get([:instance, :quarantined_instances], []), inbox_info.host)
%{host: host} = URI.parse(inbox)
quarantined_instances =
Config.get([:instance, :quarantined_instances], [])
|> Pleroma.Web.ActivityPub.MRF.subdomains_regex()
!Pleroma.Web.ActivityPub.MRF.subdomain_match?(quarantined_instances, host)
end
end

View file

@ -824,6 +824,48 @@ defmodule Pleroma.UserTest do
assert User.blocks?(user, collateral_user)
end
test "does not block domain with same end" do
user = insert(:user)
collateral_user =
insert(:user, %{ap_id: "https://another-awful-and-rude-instance.com/user/bully"})
{:ok, user} = User.block_domain(user, "awful-and-rude-instance.com")
refute User.blocks?(user, collateral_user)
end
test "does not block domain with same end if wildcard added" do
user = insert(:user)
collateral_user =
insert(:user, %{ap_id: "https://another-awful-and-rude-instance.com/user/bully"})
{:ok, user} = User.block_domain(user, "*.awful-and-rude-instance.com")
refute User.blocks?(user, collateral_user)
end
test "blocks domain with wildcard for subdomain" do
user = insert(:user)
user_from_subdomain =
insert(:user, %{ap_id: "https://subdomain.awful-and-rude-instance.com/user/bully"})
user_with_two_subdomains =
insert(:user, %{
ap_id: "https://subdomain.second_subdomain.awful-and-rude-instance.com/user/bully"
})
user_domain = insert(:user, %{ap_id: "https://awful-and-rude-instance.com/user/bully"})
{:ok, user} = User.block_domain(user, "*.awful-and-rude-instance.com")
assert User.blocks?(user, user_from_subdomain)
assert User.blocks?(user, user_with_two_subdomains)
assert User.blocks?(user, user_domain)
end
test "unblocks domains" do
user = insert(:user)
collateral_user = insert(:user, %{ap_id: "https://awful-and-rude-instance.com/user/bully"})

View file

@ -0,0 +1,46 @@
defmodule Pleroma.Web.ActivityPub.MRFTest do
use ExUnit.Case, async: true
alias Pleroma.Web.ActivityPub.MRF
test "subdomains_regex/1" do
assert MRF.subdomains_regex(["unsafe.tld", "*.unsafe.tld"]) == [
~r/^unsafe.tld$/,
~r/^(.*\.)*unsafe.tld$/
]
end
describe "subdomain_match/2" do
test "common domains" do
regexes = MRF.subdomains_regex(["unsafe.tld", "unsafe2.tld"])
assert regexes == [~r/^unsafe.tld$/, ~r/^unsafe2.tld$/]
assert MRF.subdomain_match?(regexes, "unsafe.tld")
assert MRF.subdomain_match?(regexes, "unsafe2.tld")
refute MRF.subdomain_match?(regexes, "example.com")
end
test "wildcard domains with one subdomain" do
regexes = MRF.subdomains_regex(["*.unsafe.tld"])
assert regexes == [~r/^(.*\.)*unsafe.tld$/]
assert MRF.subdomain_match?(regexes, "unsafe.tld")
assert MRF.subdomain_match?(regexes, "sub.unsafe.tld")
refute MRF.subdomain_match?(regexes, "anotherunsafe.tld")
refute MRF.subdomain_match?(regexes, "unsafe.tldanother")
end
test "wildcard domains with two subdomains" do
regexes = MRF.subdomains_regex(["*.unsafe.tld"])
assert regexes == [~r/^(.*\.)*unsafe.tld$/]
assert MRF.subdomain_match?(regexes, "unsafe.tld")
assert MRF.subdomain_match?(regexes, "sub.sub.unsafe.tld")
refute MRF.subdomain_match?(regexes, "sub.anotherunsafe.tld")
refute MRF.subdomain_match?(regexes, "sub.unsafe.tldanother")
end
end
end

View file

@ -49,6 +49,19 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "match with wildcard domain" do
Config.put([:mrf_simple, :media_removal], ["*.remote.instance"])
media_message = build_media_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(local_message) == {:ok, local_message}
end
end
describe "when :media_nsfw" do
@ -74,6 +87,20 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "match with wildcard domain" do
Config.put([:mrf_simple, :media_nsfw], ["*.remote.instance"])
media_message = build_media_message()
local_message = build_local_message()
assert SimplePolicy.filter(media_message) ==
{:ok,
media_message
|> put_in(["object", "tag"], ["foo", "nsfw"])
|> put_in(["object", "sensitive"], true)}
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
end
defp build_media_message do
@ -106,6 +133,15 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
assert SimplePolicy.filter(report_message) == {:reject, nil}
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
test "match with wildcard domain" do
Config.put([:mrf_simple, :report_removal], ["*.remote.instance"])
report_message = build_report_message()
local_message = build_local_message()
assert SimplePolicy.filter(report_message) == {:reject, nil}
assert SimplePolicy.filter(local_message) == {:ok, local_message}
end
end
defp build_report_message do
@ -146,6 +182,27 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
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)
Config.put([:mrf_simple, :federated_timeline_removal], ["*." <> ftl_message_actor_host])
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()
@ -192,6 +249,14 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
assert SimplePolicy.filter(remote_message) == {:reject, nil}
end
test "match with wildcard domain" do
Config.put([:mrf_simple, :reject], ["*.remote.instance"])
remote_message = build_remote_message()
assert SimplePolicy.filter(remote_message) == {:reject, nil}
end
end
describe "when :accept" do
@ -224,6 +289,16 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
assert SimplePolicy.filter(local_message) == {:ok, local_message}
assert SimplePolicy.filter(remote_message) == {:ok, remote_message}
end
test "match with wildcard domain" do
Config.put([: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
end
describe "when :avatar_removal" do
@ -251,6 +326,15 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
refute filtered["icon"]
end
test "match with wildcard domain" do
Config.put([: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
@ -278,6 +362,15 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicyTest do
refute filtered["image"]
end
test "match with wildcard domain" do
Config.put([:mrf_simple, :banner_removal], ["*.remote.instance"])
remote_user = build_remote_user()
{:ok, filtered} = SimplePolicy.filter(remote_user)
refute filtered["image"]
end
end
defp build_local_message do