git.squeep.com Git - akkoma/blob - lib/pleroma/user.ex

   1 defmodule Pleroma.User do
   2   use Ecto.Schema
   3
   4   import Ecto.{Changeset, Query}
   5   alias Pleroma.{Repo, User, Object, Web, Activity, Notification}
   6   alias Comeonin.Pbkdf2
   7   alias Pleroma.Formatter
   8   alias Pleroma.Web.CommonAPI.Utils, as: CommonUtils
   9   alias Pleroma.Web.{OStatus, Websub, OAuth}
  10   alias Pleroma.Web.ActivityPub.{Utils, ActivityPub}
  11
  12   @type t :: %__MODULE__{}
  13
  14   @email_regex ~r/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
  15
  16   @strict_local_nickname_regex ~r/^[a-zA-Z\d]+$/
  17   @extended_local_nickname_regex ~r/^[a-zA-Z\d_-]+$/
  18
  19   schema "users" do
  20     field(:bio, :string)
  21     field(:email, :string)
  22     field(:name, :string)
  23     field(:nickname, :string)
  24     field(:password_hash, :string)
  25     field(:password, :string, virtual: true)
  26     field(:password_confirmation, :string, virtual: true)
  27     field(:following, {:array, :string}, default: [])
  28     field(:ap_id, :string)
  29     field(:avatar, :map)
  30     field(:local, :boolean, default: true)
  31     field(:follower_address, :string)
  32     field(:search_distance, :float, virtual: true)
  33     field(:tags, {:array, :string}, default: [])
  34     field(:last_refreshed_at, :naive_datetime)
  35     has_many(:notifications, Notification)
  36     embeds_one(:info, Pleroma.User.Info)
  37
  38     timestamps()
  39   end
  40
  41   def avatar_url(user) do
  42     case user.avatar do
  43       %{"url" => [%{"href" => href} | _]} -> href
  44       _ -> "#{Web.base_url()}/images/avi.png"
  45     end
  46   end
  47
  48   def banner_url(user) do
  49     case user.info.banner do
  50       %{"url" => [%{"href" => href} | _]} -> href
  51       _ -> "#{Web.base_url()}/images/banner.png"
  52     end
  53   end
  54
  55   def profile_url(%User{info: %{source_data: %{"url" => url}}}), do: url
  56   def profile_url(%User{ap_id: ap_id}), do: ap_id
  57   def profile_url(_), do: nil
  58
  59   def ap_id(%User{nickname: nickname}) do
  60     "#{Web.base_url()}/users/#{nickname}"
  61   end
  62
  63   def ap_followers(%User{} = user) do
  64     "#{ap_id(user)}/followers"
  65   end
  66
  67   def follow_changeset(struct, params \\ %{}) do
  68     struct
  69     |> cast(params, [:following])
  70     |> validate_required([:following])
  71   end
  72
  73   def user_info(%User{} = user) do
  74     oneself = if user.local, do: 1, else: 0
  75
  76     %{
  77       following_count: length(user.following) - oneself,
  78       note_count: user.info.note_count,
  79       follower_count: user.info.follower_count,
  80       locked: user.info.locked,
  81       default_scope: user.info.default_scope
  82     }
  83   end
  84
  85   def remote_user_creation(params) do
  86     params =
  87       params
  88       |> Map.put(:info, params[:info] || %{})
  89
  90     info_cng = User.Info.remote_user_creation(%User.Info{}, params[:info])
  91
  92     changes =
  93       %User{}
  94       |> cast(params, [:bio, :name, :ap_id, :nickname, :avatar])
  95       |> validate_required([:name, :ap_id])
  96       |> unique_constraint(:nickname)
  97       |> validate_format(:nickname, @email_regex)
  98       |> validate_length(:bio, max: 5000)
  99       |> validate_length(:name, max: 100)
 100       |> put_change(:local, false)
 101       |> put_embed(:info, info_cng)
 102
 103     if changes.valid? do
 104       case info_cng.changes[:source_data] do
 105         %{"followers" => followers} ->
 106           changes
 107           |> put_change(:follower_address, followers)
 108
 109         _ ->
 110           followers = User.ap_followers(%User{nickname: changes.changes[:nickname]})
 111
 112           changes
 113           |> put_change(:follower_address, followers)
 114       end
 115     else
 116       changes
 117     end
 118   end
 119
 120   def update_changeset(struct, params \\ %{}) do
 121     struct
 122     |> cast(params, [:bio, :name, :avatar])
 123     |> unique_constraint(:nickname)
 124     |> validate_format(:nickname, local_nickname_regex())
 125     |> validate_length(:bio, max: 5000)
 126     |> validate_length(:name, min: 1, max: 100)
 127   end
 128
 129   def upgrade_changeset(struct, params \\ %{}) do
 130     params =
 131       params
 132       |> Map.put(:last_refreshed_at, NaiveDateTime.utc_now())
 133
 134     info_cng =
 135       struct.info
 136       |> User.Info.user_upgrade(params[:info])
 137
 138     struct
 139     |> cast(params, [:bio, :name, :follower_address, :avatar, :last_refreshed_at])
 140     |> unique_constraint(:nickname)
 141     |> validate_format(:nickname, local_nickname_regex())
 142     |> validate_length(:bio, max: 5000)
 143     |> validate_length(:name, max: 100)
 144     |> put_embed(:info, info_cng)
 145   end
 146
 147   def password_update_changeset(struct, params) do
 148     changeset =
 149       struct
 150       |> cast(params, [:password, :password_confirmation])
 151       |> validate_required([:password, :password_confirmation])
 152       |> validate_confirmation(:password)
 153
 154     OAuth.Token.delete_user_tokens(struct)
 155     OAuth.Authorization.delete_user_authorizations(struct)
 156
 157     if changeset.valid? do
 158       hashed = Pbkdf2.hashpwsalt(changeset.changes[:password])
 159
 160       changeset
 161       |> put_change(:password_hash, hashed)
 162     else
 163       changeset
 164     end
 165   end
 166
 167   def reset_password(user, data) do
 168     update_and_set_cache(password_update_changeset(user, data))
 169   end
 170
 171   def register_changeset(struct, params \\ %{}) do
 172     changeset =
 173       struct
 174       |> cast(params, [:bio, :email, :name, :nickname, :password, :password_confirmation])
 175       |> validate_required([:email, :name, :nickname, :password, :password_confirmation])
 176       |> validate_confirmation(:password)
 177       |> unique_constraint(:email)
 178       |> unique_constraint(:nickname)
 179       |> validate_format(:nickname, local_nickname_regex())
 180       |> validate_format(:email, @email_regex)
 181       |> validate_length(:bio, max: 1000)
 182       |> validate_length(:name, min: 1, max: 100)
 183       |> put_change(:info, %Pleroma.User.Info{})
 184
 185     if changeset.valid? do
 186       hashed = Pbkdf2.hashpwsalt(changeset.changes[:password])
 187       ap_id = User.ap_id(%User{nickname: changeset.changes[:nickname]})
 188       followers = User.ap_followers(%User{nickname: changeset.changes[:nickname]})
 189
 190       changeset
 191       |> put_change(:password_hash, hashed)
 192       |> put_change(:ap_id, ap_id)
 193       |> put_change(:following, [followers])
 194       |> put_change(:follower_address, followers)
 195     else
 196       changeset
 197     end
 198   end
 199
 200   def needs_update?(%User{local: true}), do: false
 201
 202   def needs_update?(%User{local: false, last_refreshed_at: nil}), do: true
 203
 204   def needs_update?(%User{local: false} = user) do
 205     NaiveDateTime.diff(NaiveDateTime.utc_now(), user.last_refreshed_at) >= 86400
 206   end
 207
 208   def needs_update?(_), do: true
 209
 210   def maybe_direct_follow(%User{} = follower, %User{local: true, info: %{locked: true}}) do
 211     {:ok, follower}
 212   end
 213
 214   def maybe_direct_follow(%User{} = follower, %User{local: true} = followed) do
 215     follow(follower, followed)
 216   end
 217
 218   def maybe_direct_follow(%User{} = follower, %User{} = followed) do
 219     if not User.ap_enabled?(followed) do
 220       follow(follower, followed)
 221     else
 222       {:ok, follower}
 223     end
 224   end
 225
 226   def maybe_follow(%User{} = follower, %User{info: _info} = followed) do
 227     if not following?(follower, followed) do
 228       follow(follower, followed)
 229     else
 230       {:ok, follower}
 231     end
 232   end
 233
 234   def follow(%User{} = follower, %User{info: info} = followed) do
 235     user_config = Application.get_env(:pleroma, :user)
 236     deny_follow_blocked = Keyword.get(user_config, :deny_follow_blocked)
 237
 238     ap_followers = followed.follower_address
 239
 240     cond do
 241       following?(follower, followed) or info.deactivated ->
 242         {:error, "Could not follow user: #{followed.nickname} is already on your list."}
 243
 244       deny_follow_blocked and blocks?(followed, follower) ->
 245         {:error, "Could not follow user: #{followed.nickname} blocked you."}
 246
 247       true ->
 248         if !followed.local && follower.local && !ap_enabled?(followed) do
 249           Websub.subscribe(follower, followed)
 250         end
 251
 252         following =
 253           [ap_followers | follower.following]
 254           |> Enum.uniq()
 255
 256         follower =
 257           follower
 258           |> follow_changeset(%{following: following})
 259           |> update_and_set_cache
 260
 261         {:ok, _} = update_follower_count(followed)
 262
 263         follower
 264     end
 265   end
 266
 267   def unfollow(%User{} = follower, %User{} = followed) do
 268     ap_followers = followed.follower_address
 269
 270     if following?(follower, followed) and follower.ap_id != followed.ap_id do
 271       following =
 272         follower.following
 273         |> List.delete(ap_followers)
 274
 275       {:ok, follower} =
 276         follower
 277         |> follow_changeset(%{following: following})
 278         |> update_and_set_cache
 279
 280       {:ok, followed} = update_follower_count(followed)
 281
 282       {:ok, follower, Utils.fetch_latest_follow(follower, followed)}
 283     else
 284       {:error, "Not subscribed!"}
 285     end
 286   end
 287
 288   @spec following?(User.t(), User.t()) :: boolean
 289   def following?(%User{} = follower, %User{} = followed) do
 290     Enum.member?(follower.following, followed.follower_address)
 291   end
 292
 293   def locked?(%User{} = user) do
 294     user.info.locked || false
 295   end
 296
 297   def get_by_id(id) do
 298     Repo.get_by(User, id: id)
 299   end
 300
 301   def get_by_ap_id(ap_id) do
 302     Repo.get_by(User, ap_id: ap_id)
 303   end
 304
 305   def update_and_set_cache(changeset) do
 306     with {:ok, user} <- Repo.update(changeset) do
 307       Cachex.put(:user_cache, "ap_id:#{user.ap_id}", user)
 308       Cachex.put(:user_cache, "nickname:#{user.nickname}", user)
 309       Cachex.put(:user_cache, "user_info:#{user.id}", user_info(user))
 310       {:ok, user}
 311     else
 312       e -> e
 313     end
 314   end
 315
 316   def invalidate_cache(user) do
 317     Cachex.del(:user_cache, "ap_id:#{user.ap_id}")
 318     Cachex.del(:user_cache, "nickname:#{user.nickname}")
 319     Cachex.del(:user_cache, "user_info:#{user.id}")
 320   end
 321
 322   def get_cached_by_ap_id(ap_id) do
 323     key = "ap_id:#{ap_id}"
 324     Cachex.fetch!(:user_cache, key, fn _ -> get_by_ap_id(ap_id) end)
 325   end
 326
 327   def get_cached_by_id(id) do
 328     key = "id:#{id}"
 329     Cachex.fetch!(:user_cache, key, fn _ -> get_by_id(id) end)
 330   end
 331
 332   def get_cached_by_nickname(nickname) do
 333     key = "nickname:#{nickname}"
 334     Cachex.fetch!(:user_cache, key, fn _ -> get_or_fetch_by_nickname(nickname) end)
 335   end
 336
 337   def get_cached_by_nickname_or_id(nickname_or_id) do
 338     get_cached_by_nickname(nickname_or_id) || get_cached_by_id(nickname_or_id)
 339   end
 340
 341   def get_by_nickname(nickname) do
 342     Repo.get_by(User, nickname: nickname)
 343   end
 344
 345   def get_by_nickname_or_email(nickname_or_email) do
 346     case user = Repo.get_by(User, nickname: nickname_or_email) do
 347       %User{} -> user
 348       nil -> Repo.get_by(User, email: nickname_or_email)
 349     end
 350   end
 351
 352   def get_cached_user_info(user) do
 353     key = "user_info:#{user.id}"
 354     Cachex.fetch!(:user_cache, key, fn _ -> user_info(user) end)
 355   end
 356
 357   def fetch_by_nickname(nickname) do
 358     ap_try = ActivityPub.make_user_from_nickname(nickname)
 359
 360     case ap_try do
 361       {:ok, user} -> {:ok, user}
 362       _ -> OStatus.make_user(nickname)
 363     end
 364   end
 365
 366   def get_or_fetch_by_nickname(nickname) do
 367     with %User{} = user <- get_by_nickname(nickname) do
 368       user
 369     else
 370       _e ->
 371         with [_nick, _domain] <- String.split(nickname, "@"),
 372              {:ok, user} <- fetch_by_nickname(nickname) do
 373           user
 374         else
 375           _e -> nil
 376         end
 377     end
 378   end
 379
 380   def get_followers_query(%User{id: id, follower_address: follower_address}) do
 381     from(
 382       u in User,
 383       where: fragment("? <@ ?", ^[follower_address], u.following),
 384       where: u.id != ^id
 385     )
 386   end
 387
 388   def get_followers(user) do
 389     q = get_followers_query(user)
 390
 391     {:ok, Repo.all(q)}
 392   end
 393
 394   def get_friends_query(%User{id: id, following: following}) do
 395     from(
 396       u in User,
 397       where: u.follower_address in ^following,
 398       where: u.id != ^id
 399     )
 400   end
 401
 402   def get_friends(user) do
 403     q = get_friends_query(user)
 404
 405     {:ok, Repo.all(q)}
 406   end
 407
 408   def get_follow_requests_query(%User{} = user) do
 409     from(
 410       a in Activity,
 411       where:
 412         fragment(
 413           "? ->> 'type' = 'Follow'",
 414           a.data
 415         ),
 416       where:
 417         fragment(
 418           "? ->> 'state' = 'pending'",
 419           a.data
 420         ),
 421       where:
 422         fragment(
 423           "? @> ?",
 424           a.data,
 425           ^%{"object" => user.ap_id}
 426         )
 427     )
 428   end
 429
 430   def get_follow_requests(%User{} = user) do
 431     q = get_follow_requests_query(user)
 432     reqs = Repo.all(q)
 433
 434     users =
 435       Enum.map(reqs, fn req -> req.actor end)
 436       |> Enum.uniq()
 437       |> Enum.map(fn ap_id -> get_by_ap_id(ap_id) end)
 438       |> Enum.filter(fn u -> !following?(u, user) end)
 439
 440     {:ok, users}
 441   end
 442
 443   def increase_note_count(%User{} = user) do
 444     info_cng = User.Info.add_to_note_count(user.info, 1)
 445
 446     cng =
 447       change(user)
 448       |> put_embed(:info, info_cng)
 449
 450     update_and_set_cache(cng)
 451   end
 452
 453   def decrease_note_count(%User{} = user) do
 454     info_cng = User.Info.add_to_note_count(user.info, -1)
 455
 456     cng =
 457       change(user)
 458       |> put_embed(:info, info_cng)
 459
 460     update_and_set_cache(cng)
 461   end
 462
 463   def update_note_count(%User{} = user) do
 464     note_count_query =
 465       from(
 466         a in Object,
 467         where: fragment("?->>'actor' = ? and ?->>'type' = 'Note'", a.data, ^user.ap_id, a.data),
 468         select: count(a.id)
 469       )
 470
 471     note_count = Repo.one(note_count_query)
 472
 473     info_cng = User.Info.set_note_count(user.info, note_count)
 474
 475     cng =
 476       change(user)
 477       |> put_embed(:info, info_cng)
 478
 479     update_and_set_cache(cng)
 480   end
 481
 482   def update_follower_count(%User{} = user) do
 483     follower_count_query =
 484       from(
 485         u in User,
 486         where: ^user.follower_address in u.following,
 487         where: u.id != ^user.id,
 488         select: count(u.id)
 489       )
 490
 491     follower_count = Repo.one(follower_count_query)
 492
 493     info_cng =
 494       user.info
 495       |> User.Info.set_follower_count(follower_count)
 496
 497     cng =
 498       change(user)
 499       |> put_embed(:info, info_cng)
 500
 501     update_and_set_cache(cng)
 502   end
 503
 504   def get_users_from_set_query(ap_ids, false) do
 505     from(
 506       u in User,
 507       where: u.ap_id in ^ap_ids
 508     )
 509   end
 510
 511   def get_users_from_set_query(ap_ids, true) do
 512     query = get_users_from_set_query(ap_ids, false)
 513
 514     from(
 515       u in query,
 516       where: u.local == true
 517     )
 518   end
 519
 520   def get_users_from_set(ap_ids, local_only \\ true) do
 521     get_users_from_set_query(ap_ids, local_only)
 522     |> Repo.all()
 523   end
 524
 525   def get_recipients_from_activity(%Activity{recipients: to}) do
 526     query =
 527       from(
 528         u in User,
 529         where: u.ap_id in ^to,
 530         or_where: fragment("? && ?", u.following, ^to)
 531       )
 532
 533     query = from(u in query, where: u.local == true)
 534
 535     Repo.all(query)
 536   end
 537
 538   def search(query, resolve \\ false) do
 539     # strip the beginning @ off if there is a query
 540     query = String.trim_leading(query, "@")
 541
 542     if resolve do
 543       User.get_or_fetch_by_nickname(query)
 544     end
 545
 546     inner =
 547       from(
 548         u in User,
 549         select_merge: %{
 550           search_distance:
 551             fragment(
 552               "? <-> (? || ?)",
 553               ^query,
 554               u.nickname,
 555               u.name
 556             )
 557         },
 558         where: not is_nil(u.nickname)
 559       )
 560
 561     q =
 562       from(
 563         s in subquery(inner),
 564         order_by: s.search_distance,
 565         limit: 20
 566       )
 567
 568     Repo.all(q)
 569   end
 570
 571   def block(blocker, %User{ap_id: ap_id} = blocked) do
 572     # sever any follow relationships to prevent leaks per activitypub (Pleroma issue #213)
 573     blocker =
 574       if following?(blocker, blocked) do
 575         {:ok, blocker, _} = unfollow(blocker, blocked)
 576         blocker
 577       else
 578         blocker
 579       end
 580
 581     if following?(blocked, blocker) do
 582       unfollow(blocked, blocker)
 583     end
 584
 585     info_cng =
 586       blocker.info
 587       |> User.Info.add_to_block(ap_id)
 588
 589     cng =
 590       change(blocker)
 591       |> put_embed(:info, info_cng)
 592
 593     update_and_set_cache(cng)
 594   end
 595
 596   # helper to handle the block given only an actor's AP id
 597   def block(blocker, %{ap_id: ap_id}) do
 598     block(blocker, User.get_by_ap_id(ap_id))
 599   end
 600
 601   def unblock(blocker, %{ap_id: ap_id}) do
 602     info_cng =
 603       blocker.info
 604       |> User.Info.remove_from_block(ap_id)
 605
 606     cng =
 607       change(blocker)
 608       |> put_embed(:info, info_cng)
 609
 610     update_and_set_cache(cng)
 611   end
 612
 613   def blocks?(user, %{ap_id: ap_id}) do
 614     blocks = user.info.blocks
 615     domain_blocks = user.info.domain_blocks
 616     %{host: host} = URI.parse(ap_id)
 617
 618     Enum.member?(blocks, ap_id) ||
 619       Enum.any?(domain_blocks, fn domain ->
 620         host == domain
 621       end)
 622   end
 623
 624   def block_domain(user, domain) do
 625     info_cng =
 626       user.info
 627       |> User.Info.add_to_domain_block(domain)
 628
 629     cng =
 630       change(user)
 631       |> put_embed(:info, info_cng)
 632
 633     update_and_set_cache(cng)
 634   end
 635
 636   def unblock_domain(user, domain) do
 637     info_cng =
 638       user.info
 639       |> User.Info.remove_from_domain_block(domain)
 640
 641     cng =
 642       change(user)
 643       |> put_embed(:info, info_cng)
 644
 645     update_and_set_cache(cng)
 646   end
 647
 648   def local_user_query() do
 649     from(
 650       u in User,
 651       where: u.local == true,
 652       where: not is_nil(u.nickname)
 653     )
 654   end
 655
 656   def moderator_user_query() do
 657     from(
 658       u in User,
 659       where: u.local == true,
 660       where: fragment("?->'is_moderator' @> 'true'", u.info)
 661     )
 662   end
 663
 664   def deactivate(%User{} = user, status \\ true) do
 665     info_cng = User.Info.set_activation_status(user.info, status)
 666
 667     cng =
 668       change(user)
 669       |> put_embed(:info, info_cng)
 670
 671     update_and_set_cache(cng)
 672   end
 673
 674   def delete(%User{} = user) do
 675     {:ok, user} = User.deactivate(user)
 676
 677     # Remove all relationships
 678     {:ok, followers} = User.get_followers(user)
 679
 680     followers
 681     |> Enum.each(fn follower -> User.unfollow(follower, user) end)
 682
 683     {:ok, friends} = User.get_friends(user)
 684
 685     friends
 686     |> Enum.each(fn followed -> User.unfollow(user, followed) end)
 687
 688     query = from(a in Activity, where: a.actor == ^user.ap_id)
 689
 690     Repo.all(query)
 691     |> Enum.each(fn activity ->
 692       case activity.data["type"] do
 693         "Create" ->
 694           ActivityPub.delete(Object.normalize(activity.data["object"]))
 695
 696         # TODO: Do something with likes, follows, repeats.
 697         _ ->
 698           "Doing nothing"
 699       end
 700     end)
 701
 702     {:ok, user}
 703   end
 704
 705   def html_filter_policy(%User{info: %{no_rich_text: true}}) do
 706     Pleroma.HTML.Scrubber.TwitterText
 707   end
 708
 709   def html_filter_policy(_), do: nil
 710
 711   def get_or_fetch_by_ap_id(ap_id) do
 712     user = get_by_ap_id(ap_id)
 713
 714     if !is_nil(user) and !User.needs_update?(user) do
 715       user
 716     else
 717       ap_try = ActivityPub.make_user_from_ap_id(ap_id)
 718
 719       case ap_try do
 720         {:ok, user} ->
 721           user
 722
 723         _ ->
 724           case OStatus.make_user(ap_id) do
 725             {:ok, user} -> user
 726             _ -> {:error, "Could not fetch by AP id"}
 727           end
 728       end
 729     end
 730   end
 731
 732   def get_or_create_instance_user do
 733     relay_uri = "#{Pleroma.Web.Endpoint.url()}/relay"
 734
 735     if user = get_by_ap_id(relay_uri) do
 736       user
 737     else
 738       changes =
 739         %User{info: %User.Info{}}
 740         |> cast(%{}, [:ap_id, :nickname, :local])
 741         |> put_change(:ap_id, relay_uri)
 742         |> put_change(:nickname, nil)
 743         |> put_change(:local, true)
 744         |> put_change(:follower_address, relay_uri <> "/followers")
 745
 746       {:ok, user} = Repo.insert(changes)
 747       user
 748     end
 749   end
 750
 751   # AP style
 752   def public_key_from_info(%{
 753         source_data: %{"publicKey" => %{"publicKeyPem" => public_key_pem}}
 754       }) do
 755     key =
 756       public_key_pem
 757       |> :public_key.pem_decode()
 758       |> hd()
 759       |> :public_key.pem_entry_decode()
 760
 761     {:ok, key}
 762   end
 763
 764   # OStatus Magic Key
 765   def public_key_from_info(%{magic_key: magic_key}) do
 766     {:ok, Pleroma.Web.Salmon.decode_key(magic_key)}
 767   end
 768
 769   def get_public_key_for_ap_id(ap_id) do
 770     with %User{} = user <- get_or_fetch_by_ap_id(ap_id),
 771          {:ok, public_key} <- public_key_from_info(user.info) do
 772       {:ok, public_key}
 773     else
 774       _ -> :error
 775     end
 776   end
 777
 778   defp blank?(""), do: nil
 779   defp blank?(n), do: n
 780
 781   def insert_or_update_user(data) do
 782     data =
 783       data
 784       |> Map.put(:name, blank?(data[:name]) || data[:nickname])
 785
 786     cs = User.remote_user_creation(data)
 787
 788     Repo.insert(cs, on_conflict: :replace_all, conflict_target: :nickname)
 789   end
 790
 791   def ap_enabled?(%User{local: true}), do: true
 792   def ap_enabled?(%User{info: info}), do: info.ap_enabled
 793   def ap_enabled?(_), do: false
 794
 795   @doc "Gets or fetch a user by uri or nickname."
 796   @spec get_or_fetch(String.t()) :: User.t()
 797   def get_or_fetch("http" <> _host = uri), do: get_or_fetch_by_ap_id(uri)
 798   def get_or_fetch(nickname), do: get_or_fetch_by_nickname(nickname)
 799
 800   # wait a period of time and return newest version of the User structs
 801   # this is because we have synchronous follow APIs and need to simulate them
 802   # with an async handshake
 803   def wait_and_refresh(_, %User{local: true} = a, %User{local: true} = b) do
 804     with %User{} = a <- Repo.get(User, a.id),
 805          %User{} = b <- Repo.get(User, b.id) do
 806       {:ok, a, b}
 807     else
 808       _e ->
 809         :error
 810     end
 811   end
 812
 813   def wait_and_refresh(timeout, %User{} = a, %User{} = b) do
 814     with :ok <- :timer.sleep(timeout),
 815          %User{} = a <- Repo.get(User, a.id),
 816          %User{} = b <- Repo.get(User, b.id) do
 817       {:ok, a, b}
 818     else
 819       _e ->
 820         :error
 821     end
 822   end
 823
 824   def parse_bio(bio, user \\ %User{info: %{source_data: %{}}})
 825   def parse_bio(nil, _user), do: ""
 826   def parse_bio(bio, _user) when bio == "", do: bio
 827
 828   def parse_bio(bio, user) do
 829     mentions = Formatter.parse_mentions(bio)
 830     tags = Formatter.parse_tags(bio)
 831
 832     emoji =
 833       (user.info.source_data["tag"] || [])
 834       |> Enum.filter(fn %{"type" => t} -> t == "Emoji" end)
 835       |> Enum.map(fn %{"icon" => %{"url" => url}, "name" => name} ->
 836         {String.trim(name, ":"), url}
 837       end)
 838
 839     bio
 840     |> CommonUtils.format_input(mentions, tags, "text/plain")
 841     |> Formatter.emojify(emoji)
 842   end
 843
 844   def tag(user_identifiers, tags) when is_list(user_identifiers) do
 845     Repo.transaction(fn ->
 846       for user_identifier <- user_identifiers, do: tag(user_identifier, tags)
 847     end)
 848   end
 849
 850   def tag(nickname, tags) when is_binary(nickname),
 851     do: tag(User.get_by_nickname(nickname), tags)
 852
 853   def tag(%User{} = user, tags),
 854     do: update_tags(user, Enum.uniq(user.tags ++ normalize_tags(tags)))
 855
 856   def untag(user_identifiers, tags) when is_list(user_identifiers) do
 857     Repo.transaction(fn ->
 858       for user_identifier <- user_identifiers, do: untag(user_identifier, tags)
 859     end)
 860   end
 861
 862   def untag(nickname, tags) when is_binary(nickname),
 863     do: untag(User.get_by_nickname(nickname), tags)
 864
 865   def untag(%User{} = user, tags), do: update_tags(user, user.tags -- normalize_tags(tags))
 866
 867   defp update_tags(%User{} = user, new_tags) do
 868     {:ok, updated_user} =
 869       user
 870       |> change(%{tags: new_tags})
 871       |> Repo.update()
 872
 873     updated_user
 874   end
 875
 876   defp normalize_tags(tags) do
 877     [tags]
 878     |> List.flatten()
 879     |> Enum.map(&String.downcase(&1))
 880   end
 881
 882   defp local_nickname_regex() do
 883     if Pleroma.Config.get([:instance, :extended_nickname_format]) do
 884       @extended_local_nickname_regex
 885     else
 886       @strict_local_nickname_regex
 887     end
 888   end
 889 end