1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.User do
8 import Ecto.{Changeset, Query}
9 alias Pleroma.{Repo, User, Object, Web, Activity, Notification}
11 alias Pleroma.Formatter
12 alias Pleroma.Web.CommonAPI.Utils, as: CommonUtils
13 alias Pleroma.Web.{OStatus, Websub, OAuth}
14 alias Pleroma.Web.ActivityPub.{Utils, ActivityPub}
18 @type t :: %__MODULE__{}
20 @email_regex ~r/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
22 @strict_local_nickname_regex ~r/^[a-zA-Z\d]+$/
23 @extended_local_nickname_regex ~r/^[a-zA-Z\d_-]+$/
27 field(:email, :string)
29 field(:nickname, :string)
30 field(:password_hash, :string)
31 field(:password, :string, virtual: true)
32 field(:password_confirmation, :string, virtual: true)
33 field(:following, {:array, :string}, default: [])
34 field(:ap_id, :string)
36 field(:local, :boolean, default: true)
37 field(:follower_address, :string)
38 field(:search_distance, :float, virtual: true)
39 field(:tags, {:array, :string}, default: [])
40 field(:last_refreshed_at, :naive_datetime)
41 has_many(:notifications, Notification)
42 embeds_one(:info, Pleroma.User.Info)
47 def auth_active?(%User{local: false}), do: true
49 def auth_active?(%User{info: %User.Info{confirmation_pending: false}}), do: true
51 def auth_active?(%User{info: %User.Info{confirmation_pending: true}}),
52 do: !Pleroma.Config.get([:instance, :account_activation_required])
54 def auth_active?(_), do: false
56 def visible_for?(user, for_user \\ nil)
58 def visible_for?(%User{id: user_id}, %User{id: for_id}) when user_id == for_id, do: true
60 def visible_for?(%User{} = user, for_user) do
61 auth_active?(user) || superuser?(for_user)
64 def visible_for?(_, _), do: false
66 def superuser?(%User{local: true, info: %User.Info{is_admin: true}}), do: true
67 def superuser?(%User{local: true, info: %User.Info{is_moderator: true}}), do: true
68 def superuser?(_), do: false
70 def avatar_url(user) do
72 %{"url" => [%{"href" => href} | _]} -> href
73 _ -> "#{Web.base_url()}/images/avi.png"
77 def banner_url(user) do
78 case user.info.banner do
79 %{"url" => [%{"href" => href} | _]} -> href
80 _ -> "#{Web.base_url()}/images/banner.png"
84 def profile_url(%User{info: %{source_data: %{"url" => url}}}), do: url
85 def profile_url(%User{ap_id: ap_id}), do: ap_id
86 def profile_url(_), do: nil
88 def ap_id(%User{nickname: nickname}) do
89 "#{Web.base_url()}/users/#{nickname}"
92 def ap_followers(%User{} = user) do
93 "#{ap_id(user)}/followers"
96 def follow_changeset(struct, params \\ %{}) do
98 |> cast(params, [:following])
99 |> validate_required([:following])
102 def user_info(%User{} = user) do
103 oneself = if user.local, do: 1, else: 0
106 following_count: length(user.following) - oneself,
107 note_count: user.info.note_count,
108 follower_count: user.info.follower_count,
109 locked: user.info.locked,
110 confirmation_pending: user.info.confirmation_pending,
111 default_scope: user.info.default_scope
115 def remote_user_creation(params) do
118 |> Map.put(:info, params[:info] || %{})
120 info_cng = User.Info.remote_user_creation(%User.Info{}, params[:info])
124 |> cast(params, [:bio, :name, :ap_id, :nickname, :avatar])
125 |> validate_required([:name, :ap_id])
126 |> unique_constraint(:nickname)
127 |> validate_format(:nickname, @email_regex)
128 |> validate_length(:bio, max: 5000)
129 |> validate_length(:name, max: 100)
130 |> put_change(:local, false)
131 |> put_embed(:info, info_cng)
134 case info_cng.changes[:source_data] do
135 %{"followers" => followers} ->
137 |> put_change(:follower_address, followers)
140 followers = User.ap_followers(%User{nickname: changes.changes[:nickname]})
143 |> put_change(:follower_address, followers)
150 def update_changeset(struct, params \\ %{}) do
152 |> cast(params, [:bio, :name, :avatar])
153 |> unique_constraint(:nickname)
154 |> validate_format(:nickname, local_nickname_regex())
155 |> validate_length(:bio, max: 5000)
156 |> validate_length(:name, min: 1, max: 100)
159 def upgrade_changeset(struct, params \\ %{}) do
162 |> Map.put(:last_refreshed_at, NaiveDateTime.utc_now())
166 |> User.Info.user_upgrade(params[:info])
169 |> cast(params, [:bio, :name, :follower_address, :avatar, :last_refreshed_at])
170 |> unique_constraint(:nickname)
171 |> validate_format(:nickname, local_nickname_regex())
172 |> validate_length(:bio, max: 5000)
173 |> validate_length(:name, max: 100)
174 |> put_embed(:info, info_cng)
177 def password_update_changeset(struct, params) do
180 |> cast(params, [:password, :password_confirmation])
181 |> validate_required([:password, :password_confirmation])
182 |> validate_confirmation(:password)
184 OAuth.Token.delete_user_tokens(struct)
185 OAuth.Authorization.delete_user_authorizations(struct)
187 if changeset.valid? do
188 hashed = Pbkdf2.hashpwsalt(changeset.changes[:password])
191 |> put_change(:password_hash, hashed)
197 def reset_password(user, data) do
198 update_and_set_cache(password_update_changeset(user, data))
201 def register_changeset(struct, params \\ %{}, opts \\ []) do
202 confirmation_status =
203 if opts[:confirmed] || !Pleroma.Config.get([:instance, :account_activation_required]) do
209 info_change = User.Info.confirmation_changeset(%User.Info{}, confirmation_status)
213 |> cast(params, [:bio, :email, :name, :nickname, :password, :password_confirmation])
214 |> validate_required([:email, :name, :nickname, :password, :password_confirmation])
215 |> validate_confirmation(:password)
216 |> unique_constraint(:email)
217 |> unique_constraint(:nickname)
218 |> validate_exclusion(:nickname, Pleroma.Config.get([Pleroma.User, :restricted_nicknames]))
219 |> validate_format(:nickname, local_nickname_regex())
220 |> validate_format(:email, @email_regex)
221 |> validate_length(:bio, max: 1000)
222 |> validate_length(:name, min: 1, max: 100)
223 |> put_change(:info, info_change)
225 if changeset.valid? do
226 hashed = Pbkdf2.hashpwsalt(changeset.changes[:password])
227 ap_id = User.ap_id(%User{nickname: changeset.changes[:nickname]})
228 followers = User.ap_followers(%User{nickname: changeset.changes[:nickname]})
231 |> put_change(:password_hash, hashed)
232 |> put_change(:ap_id, ap_id)
233 |> put_change(:following, [followers])
234 |> put_change(:follower_address, followers)
240 defp autofollow_users(user) do
241 candidates = Pleroma.Config.get([:instance, :autofollowed_nicknames])
245 where: u.local == true,
246 where: u.nickname in ^candidates
251 |> Enum.reduce({:ok, user}, fn other_user, {:ok, user} ->
252 follow(user, other_user)
256 @doc "Inserts provided changeset, performs post-registration actions (confirmation email sending etc.)"
257 def register(%Ecto.Changeset{} = changeset) do
258 with {:ok, user} <- Repo.insert(changeset),
259 {:ok, _} <- try_send_confirmation_email(user),
260 {:ok, user} <- autofollow_users(user) do
265 def try_send_confirmation_email(%User{} = user) do
266 if user.info.confirmation_pending &&
267 Pleroma.Config.get([:instance, :account_activation_required]) do
269 |> Pleroma.UserEmail.account_confirmation_email()
270 |> Pleroma.Mailer.deliver()
276 def needs_update?(%User{local: true}), do: false
278 def needs_update?(%User{local: false, last_refreshed_at: nil}), do: true
280 def needs_update?(%User{local: false} = user) do
281 NaiveDateTime.diff(NaiveDateTime.utc_now(), user.last_refreshed_at) >= 86400
284 def needs_update?(_), do: true
286 def maybe_direct_follow(%User{} = follower, %User{local: true, info: %{locked: true}}) do
290 def maybe_direct_follow(%User{} = follower, %User{local: true} = followed) do
291 follow(follower, followed)
294 def maybe_direct_follow(%User{} = follower, %User{} = followed) do
295 if not User.ap_enabled?(followed) do
296 follow(follower, followed)
302 def maybe_follow(%User{} = follower, %User{info: _info} = followed) do
303 if not following?(follower, followed) do
304 follow(follower, followed)
310 def follow(%User{} = follower, %User{info: info} = followed) do
311 user_config = Application.get_env(:pleroma, :user)
312 deny_follow_blocked = Keyword.get(user_config, :deny_follow_blocked)
314 ap_followers = followed.follower_address
317 following?(follower, followed) or info.deactivated ->
318 {:error, "Could not follow user: #{followed.nickname} is already on your list."}
320 deny_follow_blocked and blocks?(followed, follower) ->
321 {:error, "Could not follow user: #{followed.nickname} blocked you."}
324 if !followed.local && follower.local && !ap_enabled?(followed) do
325 Websub.subscribe(follower, followed)
329 [ap_followers | follower.following]
334 |> follow_changeset(%{following: following})
335 |> update_and_set_cache
337 {:ok, _} = update_follower_count(followed)
343 def unfollow(%User{} = follower, %User{} = followed) do
344 ap_followers = followed.follower_address
346 if following?(follower, followed) and follower.ap_id != followed.ap_id do
349 |> List.delete(ap_followers)
353 |> follow_changeset(%{following: following})
354 |> update_and_set_cache
356 {:ok, followed} = update_follower_count(followed)
358 {:ok, follower, Utils.fetch_latest_follow(follower, followed)}
360 {:error, "Not subscribed!"}
364 @spec following?(User.t(), User.t()) :: boolean
365 def following?(%User{} = follower, %User{} = followed) do
366 Enum.member?(follower.following, followed.follower_address)
369 def follow_import(%User{} = follower, followed_identifiers)
370 when is_list(followed_identifiers) do
372 followed_identifiers,
373 fn followed_identifier ->
374 with %User{} = followed <- get_or_fetch(followed_identifier),
375 {:ok, follower} <- maybe_direct_follow(follower, followed),
376 {:ok, _} <- ActivityPub.follow(follower, followed) do
380 Logger.debug("follow_import failed for #{followed_identifier} with: #{inspect(err)}")
387 def locked?(%User{} = user) do
388 user.info.locked || false
391 def get_by_ap_id(ap_id) do
392 Repo.get_by(User, ap_id: ap_id)
395 # This is mostly an SPC migration fix. This guesses the user nickname (by taking the last part of the ap_id and the domain) and tries to get that user
396 def get_by_guessed_nickname(ap_id) do
397 domain = URI.parse(ap_id).host
398 name = List.last(String.split(ap_id, "/"))
399 nickname = "#{name}@#{domain}"
401 get_by_nickname(nickname)
404 def update_and_set_cache(changeset) do
405 with {:ok, user} <- Repo.update(changeset) do
406 Cachex.put(:user_cache, "ap_id:#{user.ap_id}", user)
407 Cachex.put(:user_cache, "nickname:#{user.nickname}", user)
408 Cachex.put(:user_cache, "user_info:#{user.id}", user_info(user))
415 def invalidate_cache(user) do
416 Cachex.del(:user_cache, "ap_id:#{user.ap_id}")
417 Cachex.del(:user_cache, "nickname:#{user.nickname}")
418 Cachex.del(:user_cache, "user_info:#{user.id}")
421 def get_cached_by_ap_id(ap_id) do
422 key = "ap_id:#{ap_id}"
423 Cachex.fetch!(:user_cache, key, fn _ -> get_by_ap_id(ap_id) end)
426 def get_cached_by_nickname(nickname) do
427 key = "nickname:#{nickname}"
428 Cachex.fetch!(:user_cache, key, fn _ -> get_or_fetch_by_nickname(nickname) end)
431 def get_by_nickname(nickname) do
432 Repo.get_by(User, nickname: nickname) ||
433 if Regex.match?(~r(@#{Pleroma.Web.Endpoint.host()})i, nickname) do
434 [local_nickname, _] = String.split(nickname, "@")
435 Repo.get_by(User, nickname: local_nickname)
439 def get_by_nickname_or_email(nickname_or_email) do
440 case user = Repo.get_by(User, nickname: nickname_or_email) do
442 nil -> Repo.get_by(User, email: nickname_or_email)
446 def get_cached_user_info(user) do
447 key = "user_info:#{user.id}"
448 Cachex.fetch!(:user_cache, key, fn _ -> user_info(user) end)
451 def fetch_by_nickname(nickname) do
452 ap_try = ActivityPub.make_user_from_nickname(nickname)
455 {:ok, user} -> {:ok, user}
456 _ -> OStatus.make_user(nickname)
460 def get_or_fetch_by_nickname(nickname) do
461 with %User{} = user <- get_by_nickname(nickname) do
465 with [_nick, _domain] <- String.split(nickname, "@"),
466 {:ok, user} <- fetch_by_nickname(nickname) do
474 def get_followers_query(%User{id: id, follower_address: follower_address}, nil) do
477 where: fragment("? <@ ?", ^[follower_address], u.following),
482 def get_followers_query(user, page) do
484 u in get_followers_query(user, nil),
486 offset: ^((page - 1) * 20)
490 def get_followers_query(user), do: get_followers_query(user, nil)
492 def get_followers(user, page \\ nil) do
493 q = get_followers_query(user, page)
498 def get_friends_query(%User{id: id, following: following}, nil) do
501 where: u.follower_address in ^following,
506 def get_friends_query(user, page) do
508 u in get_friends_query(user, nil),
510 offset: ^((page - 1) * 20)
514 def get_friends_query(user), do: get_friends_query(user, nil)
516 def get_friends(user, page \\ nil) do
517 q = get_friends_query(user, page)
522 def get_follow_requests_query(%User{} = user) do
527 "? ->> 'type' = 'Follow'",
532 "? ->> 'state' = 'pending'",
539 ^%{"object" => user.ap_id}
544 def get_follow_requests(%User{} = user) do
545 q = get_follow_requests_query(user)
549 Enum.map(reqs, fn req -> req.actor end)
551 |> Enum.map(fn ap_id -> get_by_ap_id(ap_id) end)
552 |> Enum.filter(fn u -> !is_nil(u) end)
553 |> Enum.filter(fn u -> !following?(u, user) end)
558 def increase_note_count(%User{} = user) do
559 info_cng = User.Info.add_to_note_count(user.info, 1)
563 |> put_embed(:info, info_cng)
565 update_and_set_cache(cng)
568 def decrease_note_count(%User{} = user) do
569 info_cng = User.Info.add_to_note_count(user.info, -1)
573 |> put_embed(:info, info_cng)
575 update_and_set_cache(cng)
578 def update_note_count(%User{} = user) do
582 where: fragment("?->>'actor' = ? and ?->>'type' = 'Note'", a.data, ^user.ap_id, a.data),
586 note_count = Repo.one(note_count_query)
588 info_cng = User.Info.set_note_count(user.info, note_count)
592 |> put_embed(:info, info_cng)
594 update_and_set_cache(cng)
597 def update_follower_count(%User{} = user) do
598 follower_count_query =
601 where: ^user.follower_address in u.following,
602 where: u.id != ^user.id,
606 follower_count = Repo.one(follower_count_query)
610 |> User.Info.set_follower_count(follower_count)
614 |> put_embed(:info, info_cng)
616 update_and_set_cache(cng)
619 def get_users_from_set_query(ap_ids, false) do
622 where: u.ap_id in ^ap_ids
626 def get_users_from_set_query(ap_ids, true) do
627 query = get_users_from_set_query(ap_ids, false)
631 where: u.local == true
635 def get_users_from_set(ap_ids, local_only \\ true) do
636 get_users_from_set_query(ap_ids, local_only)
640 def get_recipients_from_activity(%Activity{recipients: to}) do
644 where: u.ap_id in ^to,
645 or_where: fragment("? && ?", u.following, ^to)
648 query = from(u in query, where: u.local == true)
653 def search(query, resolve \\ false) do
654 # strip the beginning @ off if there is a query
655 query = String.trim_leading(query, "@")
658 User.get_or_fetch_by_nickname(query)
667 "? <-> (? || coalesce(?, ''))",
673 where: not is_nil(u.nickname)
678 s in subquery(inner),
679 order_by: s.search_distance,
686 def blocks_import(%User{} = blocker, blocked_identifiers) when is_list(blocked_identifiers) do
689 fn blocked_identifier ->
690 with %User{} = blocked <- get_or_fetch(blocked_identifier),
691 {:ok, blocker} <- block(blocker, blocked),
692 {:ok, _} <- ActivityPub.block(blocker, blocked) do
696 Logger.debug("blocks_import failed for #{blocked_identifier} with: #{inspect(err)}")
703 def block(blocker, %User{ap_id: ap_id} = blocked) do
704 # sever any follow relationships to prevent leaks per activitypub (Pleroma issue #213)
706 if following?(blocker, blocked) do
707 {:ok, blocker, _} = unfollow(blocker, blocked)
713 if following?(blocked, blocker) do
714 unfollow(blocked, blocker)
719 |> User.Info.add_to_block(ap_id)
723 |> put_embed(:info, info_cng)
725 update_and_set_cache(cng)
728 # helper to handle the block given only an actor's AP id
729 def block(blocker, %{ap_id: ap_id}) do
730 block(blocker, User.get_by_ap_id(ap_id))
733 def unblock(blocker, %{ap_id: ap_id}) do
736 |> User.Info.remove_from_block(ap_id)
740 |> put_embed(:info, info_cng)
742 update_and_set_cache(cng)
745 def blocks?(user, %{ap_id: ap_id}) do
746 blocks = user.info.blocks
747 domain_blocks = user.info.domain_blocks
748 %{host: host} = URI.parse(ap_id)
750 Enum.member?(blocks, ap_id) ||
751 Enum.any?(domain_blocks, fn domain ->
756 def blocked_users(user),
757 do: Repo.all(from(u in User, where: u.ap_id in ^user.info.blocks))
759 def block_domain(user, domain) do
762 |> User.Info.add_to_domain_block(domain)
766 |> put_embed(:info, info_cng)
768 update_and_set_cache(cng)
771 def unblock_domain(user, domain) do
774 |> User.Info.remove_from_domain_block(domain)
778 |> put_embed(:info, info_cng)
780 update_and_set_cache(cng)
783 def local_user_query() do
786 where: u.local == true,
787 where: not is_nil(u.nickname)
791 def moderator_user_query() do
794 where: u.local == true,
795 where: fragment("?->'is_moderator' @> 'true'", u.info)
799 def deactivate(%User{} = user, status \\ true) do
800 info_cng = User.Info.set_activation_status(user.info, status)
804 |> put_embed(:info, info_cng)
806 update_and_set_cache(cng)
809 def delete(%User{} = user) do
810 {:ok, user} = User.deactivate(user)
812 # Remove all relationships
813 {:ok, followers} = User.get_followers(user)
816 |> Enum.each(fn follower -> User.unfollow(follower, user) end)
818 {:ok, friends} = User.get_friends(user)
821 |> Enum.each(fn followed -> User.unfollow(user, followed) end)
823 query = from(a in Activity, where: a.actor == ^user.ap_id)
826 |> Enum.each(fn activity ->
827 case activity.data["type"] do
829 ActivityPub.delete(Object.normalize(activity.data["object"]))
831 # TODO: Do something with likes, follows, repeats.
840 def html_filter_policy(%User{info: %{no_rich_text: true}}) do
841 Pleroma.HTML.Scrubber.TwitterText
844 @default_scrubbers Pleroma.Config.get([:markup, :scrub_policy])
846 def html_filter_policy(_), do: @default_scrubbers
848 def get_or_fetch_by_ap_id(ap_id) do
849 user = get_by_ap_id(ap_id)
851 if !is_nil(user) and !User.needs_update?(user) do
854 ap_try = ActivityPub.make_user_from_ap_id(ap_id)
861 case OStatus.make_user(ap_id) do
863 _ -> {:error, "Could not fetch by AP id"}
869 def get_or_create_instance_user do
870 relay_uri = "#{Pleroma.Web.Endpoint.url()}/relay"
872 if user = get_by_ap_id(relay_uri) do
876 %User{info: %User.Info{}}
877 |> cast(%{}, [:ap_id, :nickname, :local])
878 |> put_change(:ap_id, relay_uri)
879 |> put_change(:nickname, nil)
880 |> put_change(:local, true)
881 |> put_change(:follower_address, relay_uri <> "/followers")
883 {:ok, user} = Repo.insert(changes)
889 def public_key_from_info(%{
890 source_data: %{"publicKey" => %{"publicKeyPem" => public_key_pem}}
894 |> :public_key.pem_decode()
896 |> :public_key.pem_entry_decode()
902 def public_key_from_info(%{magic_key: magic_key}) do
903 {:ok, Pleroma.Web.Salmon.decode_key(magic_key)}
906 def get_public_key_for_ap_id(ap_id) do
907 with %User{} = user <- get_or_fetch_by_ap_id(ap_id),
908 {:ok, public_key} <- public_key_from_info(user.info) do
915 defp blank?(""), do: nil
916 defp blank?(n), do: n
918 def insert_or_update_user(data) do
921 |> Map.put(:name, blank?(data[:name]) || data[:nickname])
923 cs = User.remote_user_creation(data)
925 Repo.insert(cs, on_conflict: :replace_all, conflict_target: :nickname)
928 def ap_enabled?(%User{local: true}), do: true
929 def ap_enabled?(%User{info: info}), do: info.ap_enabled
930 def ap_enabled?(_), do: false
932 @doc "Gets or fetch a user by uri or nickname."
933 @spec get_or_fetch(String.t()) :: User.t()
934 def get_or_fetch("http" <> _host = uri), do: get_or_fetch_by_ap_id(uri)
935 def get_or_fetch(nickname), do: get_or_fetch_by_nickname(nickname)
937 # wait a period of time and return newest version of the User structs
938 # this is because we have synchronous follow APIs and need to simulate them
939 # with an async handshake
940 def wait_and_refresh(_, %User{local: true} = a, %User{local: true} = b) do
941 with %User{} = a <- Repo.get(User, a.id),
942 %User{} = b <- Repo.get(User, b.id) do
950 def wait_and_refresh(timeout, %User{} = a, %User{} = b) do
951 with :ok <- :timer.sleep(timeout),
952 %User{} = a <- Repo.get(User, a.id),
953 %User{} = b <- Repo.get(User, b.id) do
961 def parse_bio(bio, user \\ %User{info: %{source_data: %{}}})
962 def parse_bio(nil, _user), do: ""
963 def parse_bio(bio, _user) when bio == "", do: bio
965 def parse_bio(bio, user) do
966 mentions = Formatter.parse_mentions(bio)
967 tags = Formatter.parse_tags(bio)
970 (user.info.source_data["tag"] || [])
971 |> Enum.filter(fn %{"type" => t} -> t == "Emoji" end)
972 |> Enum.map(fn %{"icon" => %{"url" => url}, "name" => name} ->
973 {String.trim(name, ":"), url}
977 |> CommonUtils.format_input(mentions, tags, "text/plain")
978 |> Formatter.emojify(emoji)
981 def tag(user_identifiers, tags) when is_list(user_identifiers) do
982 Repo.transaction(fn ->
983 for user_identifier <- user_identifiers, do: tag(user_identifier, tags)
987 def tag(nickname, tags) when is_binary(nickname),
988 do: tag(User.get_by_nickname(nickname), tags)
990 def tag(%User{} = user, tags),
991 do: update_tags(user, Enum.uniq((user.tags || []) ++ normalize_tags(tags)))
993 def untag(user_identifiers, tags) when is_list(user_identifiers) do
994 Repo.transaction(fn ->
995 for user_identifier <- user_identifiers, do: untag(user_identifier, tags)
999 def untag(nickname, tags) when is_binary(nickname),
1000 do: untag(User.get_by_nickname(nickname), tags)
1002 def untag(%User{} = user, tags),
1003 do: update_tags(user, (user.tags || []) -- normalize_tags(tags))
1005 defp update_tags(%User{} = user, new_tags) do
1006 {:ok, updated_user} =
1008 |> change(%{tags: new_tags})
1014 defp normalize_tags(tags) do
1017 |> Enum.map(&String.downcase(&1))
1020 defp local_nickname_regex() do
1021 if Pleroma.Config.get([:instance, :extended_nickname_format]) do
1022 @extended_local_nickname_regex
1024 @strict_local_nickname_regex