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MRF: create MRF.Policy behaviour separate from MRF module 

Speeds up recompilation by reducing compile-time deps
This commit is contained in:
Alex Gleason 2021-06-07 14:22:08 -05:00
parent ca1eac01dd
commit fe4c4a7178
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GPG Key ID: 7211D1F99744FBB7
29 changed files with 43 additions and 38 deletions
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2
docs/configuration/mrf.md
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@ -82,7 +82,7 @@ For example, here is a sample policy module which rewrites all messages to "new
```elixir
defmodule Pleroma.Web.ActivityPub.MRF.RewritePolicy do
@moduledoc "MRF policy which rewrites all Notes to have 'new message content'."
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
# Catch messages which contain Note objects with actual data to filter.
# Capture the object as `object`, the message content as `content` and the

11
lib/pleroma/web/activity_pub/mrf.ex
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@ -51,17 +51,6 @@ defmodule Pleroma.Web.ActivityPub.MRF do
@required_description_keys [:key, :related_policy]
@callback filter(Map.t()) :: {:ok | :reject, Map.t()}
@callback describe() :: {:ok | :error, Map.t()}
@callback config_description() :: %{
optional(:children) => [map()],
key: atom(),
related_policy: String.t(),
label: String.t(),
description: String.t()
}
@optional_callbacks config_description: 0
def filter(policies, %{} = message) do
policies
|> Enum.reduce({:ok, message}, fn

2
lib/pleroma/web/activity_pub/mrf/activity_expiration_policy.ex
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@ -4,7 +4,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.ActivityExpirationPolicy do
@moduledoc "Adds expiration to all local Create activities"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@impl true
def filter(activity) do

2
lib/pleroma/web/activity_pub/mrf/anti_followbot_policy.ex
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@ -7,7 +7,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.AntiFollowbotPolicy do
@moduledoc "Prevent followbots from following with a bit of heuristic"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
# XXX: this should become User.normalize_by_ap_id() or similar, really.
defp normalize_by_ap_id(%{"id" => id}), do: User.get_cached_by_ap_id(id)

2
lib/pleroma/web/activity_pub/mrf/anti_link_spam_policy.ex
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@ -5,7 +5,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.AntiLinkSpamPolicy do
alias Pleroma.User
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
require Logger

2
lib/pleroma/web/activity_pub/mrf/drop_policy.ex
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@ -5,7 +5,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.DropPolicy do
require Logger
@moduledoc "Drop and log everything received"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@impl true
def filter(object) do

2
lib/pleroma/web/activity_pub/mrf/ensure_re_prepended.ex
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@ -6,7 +6,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.EnsureRePrepended do
alias Pleroma.Object
@moduledoc "Ensure a re: is prepended on replies to a post with a Subject"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@reply_prefix Regex.compile!("^re:[[:space:]]*", [:caseless])

2
lib/pleroma/web/activity_pub/mrf/follow_bot_policy.ex
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@ -1,5 +1,5 @@
defmodule Pleroma.Web.ActivityPub.MRF.FollowBotPolicy do
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
alias Pleroma.Config
alias Pleroma.User
alias Pleroma.Web.CommonAPI

2
lib/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy.ex
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@ -4,7 +4,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.ForceBotUnlistedPolicy do
alias Pleroma.User
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@moduledoc "Remove bot posts from federated timeline"
require Pleroma.Constants

2
lib/pleroma/web/activity_pub/mrf/hashtag_policy.ex
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@ -14,7 +14,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.HashtagPolicy do
Note: This MRF Policy is always enabled, if you want to disable it you have to set empty lists.
"""
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
defp check_reject(message, hashtags) do
if Enum.any?(Config.get([:mrf_hashtag, :reject]), fn match -> match in hashtags end) do

2
lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
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@ -9,7 +9,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicy do
@moduledoc "Block messages with too much mentions (configurable)"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
defp delist_message(message, threshold) when threshold > 0 do
follower_collection = User.get_cached_by_ap_id(message["actor"]).follower_address

2
lib/pleroma/web/activity_pub/mrf/keyword_policy.ex
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@ -7,7 +7,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.KeywordPolicy do
@moduledoc "Reject or Word-Replace messages with a keyword or regex"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
defp string_matches?(string, _) when not is_binary(string) do
false
end

2
lib/pleroma/web/activity_pub/mrf/media_proxy_warming_policy.ex
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@ -4,7 +4,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy do
@moduledoc "Preloads any attachments in the MediaProxy cache by prefetching them"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
alias Pleroma.HTTP
alias Pleroma.Web.MediaProxy

2
lib/pleroma/web/activity_pub/mrf/mention_policy.ex
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@ -5,7 +5,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.MentionPolicy do
@moduledoc "Block messages which mention a user"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@impl true
def filter(%{"type" => "Create"} = message) do

2
lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex
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@ -4,7 +4,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.NoEmptyPolicy do
@moduledoc "Filter local activities which have no content"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
alias Pleroma.Web.Endpoint

2
lib/pleroma/web/activity_pub/mrf/no_op_policy.ex
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@ -4,7 +4,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.NoOpPolicy do
@moduledoc "Does nothing (lets the messages go through unmodified)"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@impl true
def filter(object) do

2
lib/pleroma/web/activity_pub/mrf/no_placeholder_text_policy.ex
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@ -4,7 +4,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.NoPlaceholderTextPolicy do
@moduledoc "Ensure no content placeholder is present (such as the dot from mastodon)"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@impl true
def filter(

2
lib/pleroma/web/activity_pub/mrf/normalize_markup.ex
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@ -6,7 +6,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.NormalizeMarkup do
@moduledoc "Scrub configured hypertext markup"
alias Pleroma.HTML
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@impl true
def filter(%{"type" => "Create", "object" => child_object} = object) do

2
lib/pleroma/web/activity_pub/mrf/object_age_policy.ex
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@ -9,7 +9,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy do
require Pleroma.Constants
@moduledoc "Filter activities depending on their age"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
defp check_date(%{"object" => %{"published" => published}} = message) do
with %DateTime{} = now <- DateTime.utc_now(),

16
lib/pleroma/web/activity_pub/mrf/policy.ex Normal file
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@ -0,0 +1,16 @@
# 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.MRF.Policy do
@callback filter(Map.t()) :: {:ok | :reject, Map.t()}
@callback describe() :: {:ok | :error, Map.t()}
@callback config_description() :: %{
optional(:children) => [map()],
key: atom(),
related_policy: String.t(),
label: String.t(),
description: String.t()
}
@optional_callbacks config_description: 0
end

2
lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
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@ -8,7 +8,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.RejectNonPublic do
alias Pleroma.Config
alias Pleroma.User
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
require Pleroma.Constants

2
lib/pleroma/web/activity_pub/mrf/simple_policy.ex
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@ -4,7 +4,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
@moduledoc "Filter activities depending on their origin instance"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
alias Pleroma.Config
alias Pleroma.FollowingRelationship

2
lib/pleroma/web/activity_pub/mrf/steal_emoji_policy.ex
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@ -8,7 +8,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.StealEmojiPolicy do
alias Pleroma.Config
@moduledoc "Detect new emojis by their shortcode and steals them"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
defp accept_host?(host), do: host in Config.get([:mrf_steal_emoji, :hosts], [])

2
lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
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@ -8,7 +8,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SubchainPolicy do
require Logger
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
defp lookup_subchain(actor) do
with matches <- Config.get([:mrf_subchain, :match_actor]),

2
lib/pleroma/web/activity_pub/mrf/tag_policy.ex
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@ -4,7 +4,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.TagPolicy do
alias Pleroma.User
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@moduledoc """
Apply policies based on user tags

2
lib/pleroma/web/activity_pub/mrf/user_allow_list_policy.ex
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@ -6,7 +6,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.UserAllowListPolicy do
alias Pleroma.Config
@moduledoc "Accept-list of users from specified instances"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
defp filter_by_list(object, []), do: {:ok, object}

2
lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
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@ -5,7 +5,7 @@
defmodule Pleroma.Web.ActivityPub.MRF.VocabularyPolicy do
@moduledoc "Filter messages which belong to certain activity vocabularies"
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@impl true
def filter(%{"type" => "Undo", "object" => child_message} = message) do

2
test/fixtures/modules/good_mrf.ex vendored
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@ -1,5 +1,5 @@
defmodule Fixtures.Modules.GoodMRF do
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@impl true
def filter(a), do: {:ok, a}

2
test/support/mrf_module_mock.ex
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@ -3,7 +3,7 @@
# SPDX-License-Identifier: AGPL-3.0-only
defmodule MRFModuleMock do
@behaviour Pleroma.Web.ActivityPub.MRF
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
@impl true
def filter(message), do: {:ok, message}