tests MRF filters

This commit is contained in:
Maksim 2019-07-10 05:12:21 +00:00 committed by kaniini
parent 81f1017b84
commit bb8065a1fd
13 changed files with 494 additions and 67 deletions

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@ -9,8 +9,9 @@ defmodule Pleroma.Web.ActivityPub.MRF.EnsureRePrepended do
@behaviour Pleroma.Web.ActivityPub.MRF
@reply_prefix Regex.compile!("^re:[[:space:]]*", [:caseless])
def filter_by_summary(
%{"summary" => parent_summary} = _parent,
%{data: %{"summary" => parent_summary}} = _in_reply_to,
%{"summary" => child_summary} = child
)
when not is_nil(child_summary) and byte_size(child_summary) > 0 and
@ -24,17 +25,13 @@ def filter_by_summary(
end
end
def filter_by_summary(_parent, child), do: child
def filter(%{"type" => activity_type} = object) when activity_type == "Create" do
child = object["object"]
in_reply_to = Object.normalize(child["inReplyTo"])
def filter_by_summary(_in_reply_to, child), do: child
def filter(%{"type" => "Create", "object" => child_object} = object) do
child =
if(in_reply_to,
do: filter_by_summary(in_reply_to.data, child),
else: child
)
child_object["inReplyTo"]
|> Object.normalize(child_object["inReplyTo"])
|> filter_by_summary(child_object)
object = Map.put(object, "object", child)

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@ -10,19 +10,11 @@ defmodule Pleroma.Web.ActivityPub.MRF.NoPlaceholderTextPolicy do
def filter(
%{
"type" => "Create",
"object" => %{"content" => content, "attachment" => _attachment} = child_object
"object" => %{"content" => content, "attachment" => _} = _child_object
} = object
)
when content in [".", "<p>.</p>"] do
child_object =
child_object
|> Map.put("content", "")
object =
object
|> Map.put("object", child_object)
{:ok, object}
{:ok, put_in(object, ["object", "content"], "")}
end
@impl true

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@ -8,18 +8,14 @@ defmodule Pleroma.Web.ActivityPub.MRF.NormalizeMarkup do
@behaviour Pleroma.Web.ActivityPub.MRF
def filter(%{"type" => activity_type} = object) when activity_type == "Create" do
def filter(%{"type" => "Create", "object" => child_object} = object) do
scrub_policy = Pleroma.Config.get([:mrf_normalize_markup, :scrub_policy])
child = object["object"]
content =
child["content"]
child_object["content"]
|> HTML.filter_tags(scrub_policy)
child = Map.put(child, "content", content)
object = Map.put(object, "object", child)
object = put_in(object, ["object", "content"], content)
{:ok, object}
end

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@ -3,46 +3,42 @@
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.RejectNonPublic do
alias Pleroma.User
@moduledoc "Rejects non-public (followers-only, direct) activities"
alias Pleroma.Config
alias Pleroma.User
@behaviour Pleroma.Web.ActivityPub.MRF
@public "https://www.w3.org/ns/activitystreams#Public"
@impl true
def filter(%{"type" => "Create"} = object) do
user = User.get_cached_by_ap_id(object["actor"])
public = "https://www.w3.org/ns/activitystreams#Public"
# Determine visibility
visibility =
cond do
public in object["to"] -> "public"
public in object["cc"] -> "unlisted"
@public in object["to"] -> "public"
@public in object["cc"] -> "unlisted"
user.follower_address in object["to"] -> "followers"
true -> "direct"
end
policy = Pleroma.Config.get(:mrf_rejectnonpublic)
policy = Config.get(:mrf_rejectnonpublic)
case visibility do
"public" ->
cond do
visibility in ["public", "unlisted"] ->
{:ok, object}
"unlisted" ->
visibility == "followers" and Keyword.get(policy, :allow_followersonly) ->
{:ok, object}
"followers" ->
with true <- Keyword.get(policy, :allow_followersonly) do
{:ok, object}
else
_e -> {:reject, nil}
end
visibility == "direct" and Keyword.get(policy, :allow_direct) ->
{:ok, object}
"direct" ->
with true <- Keyword.get(policy, :allow_direct) do
{:ok, object}
else
_e -> {:reject, nil}
end
true ->
{:reject, nil}
end
end

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@ -19,12 +19,17 @@ defmodule Pleroma.Web.ActivityPub.MRF.TagPolicy do
- `mrf_tag:disable-any-subscription`: Reject any follow requests
"""
@public "https://www.w3.org/ns/activitystreams#Public"
defp get_tags(%User{tags: tags}) when is_list(tags), do: tags
defp get_tags(_), do: []
defp process_tag(
"mrf_tag:media-force-nsfw",
%{"type" => "Create", "object" => %{"attachment" => child_attachment} = object} = message
%{
"type" => "Create",
"object" => %{"attachment" => child_attachment} = object
} = message
)
when length(child_attachment) > 0 do
tags = (object["tag"] || []) ++ ["nsfw"]
@ -41,7 +46,10 @@ defp process_tag(
defp process_tag(
"mrf_tag:media-strip",
%{"type" => "Create", "object" => %{"attachment" => child_attachment} = object} = message
%{
"type" => "Create",
"object" => %{"attachment" => child_attachment} = object
} = message
)
when length(child_attachment) > 0 do
object = Map.delete(object, "attachment")
@ -52,19 +60,22 @@ defp process_tag(
defp process_tag(
"mrf_tag:force-unlisted",
%{"type" => "Create", "to" => to, "cc" => cc, "actor" => actor} = message
%{
"type" => "Create",
"to" => to,
"cc" => cc,
"actor" => actor,
"object" => object
} = message
) do
user = User.get_cached_by_ap_id(actor)
if Enum.member?(to, "https://www.w3.org/ns/activitystreams#Public") do
to =
List.delete(to, "https://www.w3.org/ns/activitystreams#Public") ++ [user.follower_address]
cc =
List.delete(cc, user.follower_address) ++ ["https://www.w3.org/ns/activitystreams#Public"]
if Enum.member?(to, @public) do
to = List.delete(to, @public) ++ [user.follower_address]
cc = List.delete(cc, user.follower_address) ++ [@public]
object =
message["object"]
object
|> Map.put("to", to)
|> Map.put("cc", cc)
@ -82,19 +93,22 @@ defp process_tag(
defp process_tag(
"mrf_tag:sandbox",
%{"type" => "Create", "to" => to, "cc" => cc, "actor" => actor} = message
%{
"type" => "Create",
"to" => to,
"cc" => cc,
"actor" => actor,
"object" => object
} = message
) do
user = User.get_cached_by_ap_id(actor)
if Enum.member?(to, "https://www.w3.org/ns/activitystreams#Public") or
Enum.member?(cc, "https://www.w3.org/ns/activitystreams#Public") do
to =
List.delete(to, "https://www.w3.org/ns/activitystreams#Public") ++ [user.follower_address]
cc = List.delete(cc, "https://www.w3.org/ns/activitystreams#Public")
if Enum.member?(to, @public) or Enum.member?(cc, @public) do
to = List.delete(to, @public) ++ [user.follower_address]
cc = List.delete(cc, @public)
object =
message["object"]
object
|> Map.put("to", to)
|> Map.put("cc", cc)
@ -123,7 +137,8 @@ defp process_tag(
end
end
defp process_tag("mrf_tag:disable-any-subscription", %{"type" => "Follow"}), do: {:reject, nil}
defp process_tag("mrf_tag:disable-any-subscription", %{"type" => "Follow"}),
do: {:reject, nil}
defp process_tag(_, message), do: {:ok, message}

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@ -21,7 +21,12 @@ defp filter_by_list(%{"actor" => actor} = object, allow_list) do
@impl true
def filter(%{"actor" => actor} = object) do
actor_info = URI.parse(actor)
allow_list = Config.get([:mrf_user_allowlist, String.to_atom(actor_info.host)], [])
allow_list =
Config.get(
[:mrf_user_allowlist, String.to_atom(actor_info.host)],
[]
)
filter_by_list(object, allow_list)
end

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@ -76,6 +76,7 @@
"ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm"},
"recon": {:git, "https://github.com/ferd/recon.git", "75d70c7c08926d2f24f1ee6de14ee50fe8a52763", [tag: "2.4.0"]},
"ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.4", "f0eafff810d2041e93f915ef59899c923f4568f4585904d010387ed74988e77b", [:make, :mix, :rebar3], [], "hexpm"},
"stream_data": {:hex, :stream_data, "0.4.3", "62aafd870caff0849a5057a7ec270fad0eb86889f4d433b937d996de99e3db25", [:mix], [], "hexpm"},
"swoosh": {:hex, :swoosh, "0.20.0", "9a6c13822c9815993c03b6f8fccc370fcffb3c158d9754f67b1fdee6b3a5d928", [:mix], [{:cowboy, "~> 1.0.1 or ~> 1.1 or ~> 2.4", [hex: :cowboy, repo: "hexpm", optional: true]}, {:gen_smtp, "~> 0.12", [hex: :gen_smtp, repo: "hexpm", optional: true]}, {:hackney, "~> 1.9", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 1.1", [hex: :mime, repo: "hexpm", optional: false]}, {:plug, "~> 1.4", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm"},
"syslog": {:git, "https://github.com/Vagabond/erlang-syslog.git", "4a6c6f2c996483e86c1320e9553f91d337bcb6aa", [tag: "1.0.5"]},
"telemetry": {:hex, :telemetry, "0.4.0", "8339bee3fa8b91cb84d14c2935f8ecf399ccd87301ad6da6b71c09553834b2ab", [:rebar3], [], "hexpm"},

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@ -0,0 +1,82 @@
# Pleroma: A lightweight social networking server
# Copyright © 2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.EnsureRePrependedTest do
use Pleroma.DataCase
alias Pleroma.Activity
alias Pleroma.Object
alias Pleroma.Web.ActivityPub.MRF.EnsureRePrepended
describe "rewrites summary" do
test "it adds `re:` to summary object when child summary and parent summary equal" do
message = %{
"type" => "Create",
"object" => %{
"summary" => "object-summary",
"inReplyTo" => %Activity{object: %Object{data: %{"summary" => "object-summary"}}}
}
}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res["object"]["summary"] == "re: object-summary"
end
test "it adds `re:` to summary object when child summary containts re-subject of parent summary " do
message = %{
"type" => "Create",
"object" => %{
"summary" => "object-summary",
"inReplyTo" => %Activity{object: %Object{data: %{"summary" => "re: object-summary"}}}
}
}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res["object"]["summary"] == "re: object-summary"
end
end
describe "skip filter" do
test "it skip if type isn't 'Create'" do
message = %{
"type" => "Annotation",
"object" => %{"summary" => "object-summary"}
}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res == message
end
test "it skip if summary is empty" do
message = %{
"type" => "Create",
"object" => %{
"inReplyTo" => %Activity{object: %Object{data: %{"summary" => "summary"}}}
}
}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res == message
end
test "it skip if inReplyTo is empty" do
message = %{"type" => "Create", "object" => %{"summary" => "summary"}}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res == message
end
test "it skip if parent and child summary isn't equal" do
message = %{
"type" => "Create",
"object" => %{
"summary" => "object-summary",
"inReplyTo" => %Activity{object: %Object{data: %{"summary" => "summary"}}}
}
}
assert {:ok, res} = EnsureRePrepended.filter(message)
assert res == message
end
end
end

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@ -0,0 +1,37 @@
# Pleroma: A lightweight social networking server
# Copyright © 2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.NoPlaceholderTextPolicyTest do
use Pleroma.DataCase
alias Pleroma.Web.ActivityPub.MRF.NoPlaceholderTextPolicy
test "it clears content object" do
message = %{
"type" => "Create",
"object" => %{"content" => ".", "attachment" => "image"}
}
assert {:ok, res} = NoPlaceholderTextPolicy.filter(message)
assert res["object"]["content"] == ""
message = put_in(message, ["object", "content"], "<p>.</p>")
assert {:ok, res} = NoPlaceholderTextPolicy.filter(message)
assert res["object"]["content"] == ""
end
@messages [
%{
"type" => "Create",
"object" => %{"content" => "test", "attachment" => "image"}
},
%{"type" => "Create", "object" => %{"content" => "."}},
%{"type" => "Create", "object" => %{"content" => "<p>.</p>"}}
]
test "it skips filter" do
Enum.each(@messages, fn message ->
assert {:ok, res} = NoPlaceholderTextPolicy.filter(message)
assert res == message
end)
end
end

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@ -0,0 +1,42 @@
# Pleroma: A lightweight social networking server
# Copyright © 2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.NormalizeMarkupTest do
use Pleroma.DataCase
alias Pleroma.Web.ActivityPub.MRF.NormalizeMarkup
@html_sample """
<b>this is in bold</b>
<p>this is a paragraph</p>
this is a linebreak<br />
this is a link with allowed "rel" attribute: <a href="http://example.com/" rel="tag">example.com</a>
this is a link with not allowed "rel" attribute: <a href="http://example.com/" rel="tag noallowed">example.com</a>
this is an image: <img src="http://example.com/image.jpg"><br />
<script>alert('hacked')</script>
"""
test "it filter html tags" do
expected = """
<b>this is in bold</b>
<p>this is a paragraph</p>
this is a linebreak<br />
this is a link with allowed "rel" attribute: <a href="http://example.com/" rel="tag">example.com</a>
this is a link with not allowed "rel" attribute: <a href="http://example.com/">example.com</a>
this is an image: <img src="http://example.com/image.jpg" /><br />
alert('hacked')
"""
message = %{"type" => "Create", "object" => %{"content" => @html_sample}}
assert {:ok, res} = NormalizeMarkup.filter(message)
assert res["object"]["content"] == expected
end
test "it skips filter if type isn't `Create`" do
message = %{"type" => "Note", "object" => %{}}
assert {:ok, res} = NormalizeMarkup.filter(message)
assert res == message
end
end

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@ -0,0 +1,105 @@
# Pleroma: A lightweight social networking server
# Copyright © 2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.RejectNonPublicTest do
use Pleroma.DataCase
import Pleroma.Factory
alias Pleroma.Web.ActivityPub.MRF.RejectNonPublic
setup do
policy = Pleroma.Config.get([:mrf_rejectnonpublic])
on_exit(fn -> Pleroma.Config.put([:mrf_rejectnonpublic], policy) end)
:ok
end
describe "public message" do
test "it's allowed when address is public" do
actor = insert(:user, follower_address: "test-address")
message = %{
"actor" => actor.ap_id,
"to" => ["https://www.w3.org/ns/activitystreams#Public"],
"cc" => ["https://www.w3.org/ns/activitystreams#Publid"],
"type" => "Create"
}
assert {:ok, message} = RejectNonPublic.filter(message)
end
test "it's allowed when cc address contain public address" do
actor = insert(:user, follower_address: "test-address")
message = %{
"actor" => actor.ap_id,
"to" => ["https://www.w3.org/ns/activitystreams#Public"],
"cc" => ["https://www.w3.org/ns/activitystreams#Publid"],
"type" => "Create"
}
assert {:ok, message} = RejectNonPublic.filter(message)
end
end
describe "followers message" do
test "it's allowed when addrer of message in the follower addresses of user and it enabled in config" do
actor = insert(:user, follower_address: "test-address")
message = %{
"actor" => actor.ap_id,
"to" => ["test-address"],
"cc" => ["https://www.w3.org/ns/activitystreams#Publid"],
"type" => "Create"
}
Pleroma.Config.put([:mrf_rejectnonpublic, :allow_followersonly], true)
assert {:ok, message} = RejectNonPublic.filter(message)
end
test "it's rejected when addrer of message in the follower addresses of user and it disabled in config" do
actor = insert(:user, follower_address: "test-address")
message = %{
"actor" => actor.ap_id,
"to" => ["test-address"],
"cc" => ["https://www.w3.org/ns/activitystreams#Publid"],
"type" => "Create"
}
Pleroma.Config.put([:mrf_rejectnonpublic, :allow_followersonly], false)
assert {:reject, nil} = RejectNonPublic.filter(message)
end
end
describe "direct message" do
test "it's allows when direct messages are allow" do
actor = insert(:user)
message = %{
"actor" => actor.ap_id,
"to" => ["https://www.w3.org/ns/activitystreams#Publid"],
"cc" => ["https://www.w3.org/ns/activitystreams#Publid"],
"type" => "Create"
}
Pleroma.Config.put([:mrf_rejectnonpublic, :allow_direct], true)
assert {:ok, message} = RejectNonPublic.filter(message)
end
test "it's reject when direct messages aren't allow" do
actor = insert(:user)
message = %{
"actor" => actor.ap_id,
"to" => ["https://www.w3.org/ns/activitystreams#Publid~~~"],
"cc" => ["https://www.w3.org/ns/activitystreams#Publid"],
"type" => "Create"
}
Pleroma.Config.put([:mrf_rejectnonpublic, :allow_direct], false)
assert {:reject, nil} = RejectNonPublic.filter(message)
end
end
end

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@ -0,0 +1,123 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.TagPolicyTest do
use Pleroma.DataCase
import Pleroma.Factory
alias Pleroma.Web.ActivityPub.MRF.TagPolicy
@public "https://www.w3.org/ns/activitystreams#Public"
describe "mrf_tag:disable-any-subscription" do
test "rejects message" do
actor = insert(:user, tags: ["mrf_tag:disable-any-subscription"])
message = %{"object" => actor.ap_id, "type" => "Follow"}
assert {:reject, nil} = TagPolicy.filter(message)
end
end
describe "mrf_tag:disable-remote-subscription" do
test "rejects non-local follow requests" do
actor = insert(:user, tags: ["mrf_tag:disable-remote-subscription"])
follower = insert(:user, tags: ["mrf_tag:disable-remote-subscription"], local: false)
message = %{"object" => actor.ap_id, "type" => "Follow", "actor" => follower.ap_id}
assert {:reject, nil} = TagPolicy.filter(message)
end
test "allows non-local follow requests" do
actor = insert(:user, tags: ["mrf_tag:disable-remote-subscription"])
follower = insert(:user, tags: ["mrf_tag:disable-remote-subscription"], local: true)
message = %{"object" => actor.ap_id, "type" => "Follow", "actor" => follower.ap_id}
assert {:ok, message} = TagPolicy.filter(message)
end
end
describe "mrf_tag:sandbox" do
test "removes from public timelines" do
actor = insert(:user, tags: ["mrf_tag:sandbox"])
message = %{
"actor" => actor.ap_id,
"type" => "Create",
"object" => %{},
"to" => [@public, "f"],
"cc" => [@public, "d"]
}
except_message = %{
"actor" => actor.ap_id,
"type" => "Create",
"object" => %{"to" => ["f", actor.follower_address], "cc" => ["d"]},
"to" => ["f", actor.follower_address],
"cc" => ["d"]
}
assert TagPolicy.filter(message) == {:ok, except_message}
end
end
describe "mrf_tag:force-unlisted" do
test "removes from the federated timeline" do
actor = insert(:user, tags: ["mrf_tag:force-unlisted"])
message = %{
"actor" => actor.ap_id,
"type" => "Create",
"object" => %{},
"to" => [@public, "f"],
"cc" => [actor.follower_address, "d"]
}
except_message = %{
"actor" => actor.ap_id,
"type" => "Create",
"object" => %{"to" => ["f", actor.follower_address], "cc" => ["d", @public]},
"to" => ["f", actor.follower_address],
"cc" => ["d", @public]
}
assert TagPolicy.filter(message) == {:ok, except_message}
end
end
describe "mrf_tag:media-strip" do
test "removes attachments" do
actor = insert(:user, tags: ["mrf_tag:media-strip"])
message = %{
"actor" => actor.ap_id,
"type" => "Create",
"object" => %{"attachment" => ["file1"]}
}
except_message = %{
"actor" => actor.ap_id,
"type" => "Create",
"object" => %{}
}
assert TagPolicy.filter(message) == {:ok, except_message}
end
end
describe "mrf_tag:media-force-nsfw" do
test "Mark as sensitive on presence of attachments" do
actor = insert(:user, tags: ["mrf_tag:media-force-nsfw"])
message = %{
"actor" => actor.ap_id,
"type" => "Create",
"object" => %{"tag" => ["test"], "attachment" => ["file1"]}
}
except_message = %{
"actor" => actor.ap_id,
"type" => "Create",
"object" => %{"tag" => ["test", "nsfw"], "attachment" => ["file1"], "sensitive" => true}
}
assert TagPolicy.filter(message) == {:ok, except_message}
end
end
end

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@ -0,0 +1,36 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.MRF.UserAllowListPolicyTest do
use Pleroma.DataCase
import Pleroma.Factory
alias Pleroma.Web.ActivityPub.MRF.UserAllowListPolicy
setup do
policy = Pleroma.Config.get([:mrf_user_allowlist]) || []
on_exit(fn -> Pleroma.Config.put([:mrf_user_allowlist], policy) end)
:ok
end
test "pass filter if allow list is empty" do
actor = insert(:user)
message = %{"actor" => actor.ap_id}
assert UserAllowListPolicy.filter(message) == {:ok, message}
end
test "pass filter if allow list isn't empty and user in allow list" do
actor = insert(:user)
Pleroma.Config.put([:mrf_user_allowlist, :localhost], [actor.ap_id, "test-ap-id"])
message = %{"actor" => actor.ap_id}
assert UserAllowListPolicy.filter(message) == {:ok, message}
end
test "rejected if allow list isn't empty and user not in allow list" do
actor = insert(:user)
Pleroma.Config.put([:mrf_user_allowlist, :localhost], ["test-ap-id"])
message = %{"actor" => actor.ap_id}
assert UserAllowListPolicy.filter(message) == {:reject, nil}
end
end