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.Web.{OStatus, Websub}
   8   alias Pleroma.Web.ActivityPub.{Utils, ActivityPub}
   9
  10   schema "users" do
  11     field :bio, :string
  12     field :email, :string
  13     field :name, :string
  14     field :nickname, :string
  15     field :password_hash, :string
  16     field :password, :string, virtual: true
  17     field :password_confirmation, :string, virtual: true
  18     field :following, {:array, :string}, default: []
  19     field :ap_id, :string
  20     field :avatar, :map
  21     field :local, :boolean, default: true
  22     field :info, :map, default: %{}
  23     field :follower_address, :string
  24     has_many :notifications, Notification
  25
  26     timestamps()
  27   end
  28
  29   def avatar_url(user) do
  30     case user.avatar do
  31       %{"url" => [%{"href" => href} | _]} -> href
  32       _ -> "#{Web.base_url()}/images/avi.png"
  33     end
  34   end
  35
  36   def banner_url(user) do
  37     case user.info["banner"] do
  38       %{"url" => [%{"href" => href} | _]} -> href
  39       _ -> "#{Web.base_url()}/images/banner.png"
  40     end
  41   end
  42
  43   def ap_id(%User{nickname: nickname}) do
  44     "#{Web.base_url}/users/#{nickname}"
  45   end
  46
  47   def ap_followers(%User{} = user) do
  48     "#{ap_id(user)}/followers"
  49   end
  50
  51   def follow_changeset(struct, params \\ %{}) do
  52     struct
  53     |> cast(params, [:following])
  54     |> validate_required([:following])
  55   end
  56
  57   def info_changeset(struct, params \\ %{}) do
  58     struct
  59     |> cast(params, [:info])
  60     |> validate_required([:info])
  61   end
  62
  63   def user_info(%User{} = user) do
  64     oneself = if user.local, do: 1, else: 0
  65     %{
  66       following_count: length(user.following) - oneself,
  67       note_count: user.info["note_count"] || 0,
  68       follower_count: user.info["follower_count"] || 0
  69     }
  70   end
  71
  72   @email_regex ~r/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
  73   def remote_user_creation(params) do
  74     changes = %User{}
  75     |> cast(params, [:bio, :name, :ap_id, :nickname, :info, :avatar])
  76     |> validate_required([:name, :ap_id, :nickname])
  77     |> unique_constraint(:nickname)
  78     |> validate_format(:nickname, @email_regex)
  79     |> validate_length(:bio, max: 5000)
  80     |> validate_length(:name, max: 100)
  81     |> put_change(:local, false)
  82     if changes.valid? do
  83       case changes.changes[:info]["source_data"] do
  84         %{"followers" => followers} ->
  85           changes
  86           |> put_change(:follower_address, followers)
  87         _ ->
  88           followers = User.ap_followers(%User{nickname: changes.changes[:nickname]})
  89           changes
  90           |> put_change(:follower_address, followers)
  91       end
  92     else
  93       changes
  94     end
  95   end
  96
  97   def update_changeset(struct, params \\ %{}) do
  98     struct
  99     |> cast(params, [:bio, :name])
 100     |> unique_constraint(:nickname)
 101     |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
 102     |> validate_length(:bio, max: 1000)
 103     |> validate_length(:name, min: 1, max: 100)
 104   end
 105
 106   def upgrade_changeset(struct, params \\ %{}) do
 107     struct
 108     |> cast(params, [:bio, :name, :info, :follower_address, :avatar])
 109     |> unique_constraint(:nickname)
 110     |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
 111     |> validate_length(:bio, max: 5000)
 112     |> validate_length(:name, max: 100)
 113   end
 114
 115   def password_update_changeset(struct, params) do
 116     changeset = struct
 117     |> cast(params, [:password, :password_confirmation])
 118     |> validate_required([:password, :password_confirmation])
 119     |> validate_confirmation(:password)
 120
 121     if changeset.valid? do
 122       hashed = Pbkdf2.hashpwsalt(changeset.changes[:password])
 123       changeset
 124       |> put_change(:password_hash, hashed)
 125     else
 126       changeset
 127     end
 128   end
 129
 130   def reset_password(user, data) do
 131     update_and_set_cache(password_update_changeset(user, data))
 132   end
 133
 134   def register_changeset(struct, params \\ %{}) do
 135     changeset = struct
 136     |> cast(params, [:bio, :email, :name, :nickname, :password, :password_confirmation])
 137     |> validate_required([:email, :name, :nickname, :password, :password_confirmation])
 138     |> validate_confirmation(:password)
 139     |> unique_constraint(:email)
 140     |> unique_constraint(:nickname)
 141     |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
 142     |> validate_format(:email, @email_regex)
 143     |> validate_length(:bio, max: 1000)
 144     |> validate_length(:name, min: 1, max: 100)
 145
 146     if changeset.valid? do
 147       hashed = Pbkdf2.hashpwsalt(changeset.changes[:password])
 148       ap_id = User.ap_id(%User{nickname: changeset.changes[:nickname]})
 149       followers = User.ap_followers(%User{nickname: changeset.changes[:nickname]})
 150       changeset
 151       |> put_change(:password_hash, hashed)
 152       |> put_change(:ap_id, ap_id)
 153       |> put_change(:following, [followers])
 154       |> put_change(:follower_address, followers)
 155     else
 156       changeset
 157     end
 158   end
 159
 160   def follow(%User{} = follower, %User{info: info} = followed) do
 161     ap_followers = followed.follower_address
 162
 163     if following?(follower, followed) or info["deactivated"] do
 164       {:error,
 165        "Could not follow user: #{followed.nickname} is already on your list."}
 166     else
 167       if !followed.local && follower.local && !ap_enabled?(followed) do
 168         Websub.subscribe(follower, followed)
 169       end
 170
 171       following = [ap_followers | follower.following]
 172       |> Enum.uniq
 173
 174       follower = follower
 175       |> follow_changeset(%{following: following})
 176       |> update_and_set_cache
 177
 178       {:ok, _} = update_follower_count(followed)
 179
 180       follower
 181     end
 182   end
 183
 184   def unfollow(%User{} = follower, %User{} = followed) do
 185     ap_followers = followed.follower_address
 186     if following?(follower, followed) and follower.ap_id != followed.ap_id do
 187       following = follower.following
 188       |> List.delete(ap_followers)
 189
 190       { :ok, follower } = follower
 191       |> follow_changeset(%{following: following})
 192       |> update_and_set_cache
 193
 194       {:ok, followed} = update_follower_count(followed)
 195
 196       {:ok, follower, Utils.fetch_latest_follow(follower, followed)}
 197     else
 198       {:error, "Not subscribed!"}
 199     end
 200   end
 201
 202   def following?(%User{} = follower, %User{} = followed) do
 203     Enum.member?(follower.following, followed.follower_address)
 204   end
 205
 206   def get_by_ap_id(ap_id) do
 207     Repo.get_by(User, ap_id: ap_id)
 208   end
 209
 210   def update_and_set_cache(changeset) do
 211     with {:ok, user} <- Repo.update(changeset) do
 212       Cachex.set(:user_cache, "ap_id:#{user.ap_id}", user)
 213       Cachex.set(:user_cache, "nickname:#{user.nickname}", user)
 214       Cachex.set(:user_cache, "user_info:#{user.id}", user_info(user))
 215       {:ok, user}
 216     else
 217       e -> e
 218     end
 219   end
 220
 221   def invalidate_cache(user) do
 222     Cachex.del(:user_cache, "ap_id:#{user.ap_id}")
 223     Cachex.del(:user_cache, "nickname:#{user.nickname}")
 224   end
 225
 226   def get_cached_by_ap_id(ap_id) do
 227     key = "ap_id:#{ap_id}"
 228     Cachex.get!(:user_cache, key, fallback: fn(_) -> get_by_ap_id(ap_id) end)
 229   end
 230
 231   def get_cached_by_nickname(nickname) do
 232     key = "nickname:#{nickname}"
 233     Cachex.get!(:user_cache, key, fallback: fn(_) -> get_or_fetch_by_nickname(nickname) end)
 234   end
 235
 236   def get_by_nickname(nickname) do
 237     Repo.get_by(User, nickname: nickname)
 238   end
 239
 240   def get_cached_user_info(user) do
 241     key = "user_info:#{user.id}"
 242     Cachex.get!(:user_cache, key, fallback: fn(_) -> user_info(user) end)
 243   end
 244
 245   def fetch_by_nickname(nickname) do
 246     ap_try = ActivityPub.make_user_from_nickname(nickname)
 247
 248     case ap_try do
 249       {:ok, user} -> {:ok, user}
 250       _ -> OStatus.make_user(nickname)
 251     end
 252   end
 253
 254   def get_or_fetch_by_nickname(nickname) do
 255     with %User{} = user <- get_by_nickname(nickname)  do
 256       user
 257     else _e ->
 258       with [_nick, _domain] <- String.split(nickname, "@"),
 259            {:ok, user} <- fetch_by_nickname(nickname) do
 260         user
 261       else _e -> nil
 262       end
 263     end
 264   end
 265
 266   def get_followers(%User{id: id, follower_address: follower_address}) do
 267     q = from u in User,
 268       where: fragment("? <@ ?", ^[follower_address], u.following),
 269       where: u.id != ^id
 270
 271     {:ok, Repo.all(q)}
 272   end
 273
 274   def get_friends(%User{id: id, following: following}) do
 275     q = from u in User,
 276       where: u.follower_address in ^following,
 277       where: u.id != ^id
 278
 279     {:ok, Repo.all(q)}
 280   end
 281
 282   def increase_note_count(%User{} = user) do
 283     note_count = (user.info["note_count"] || 0) + 1
 284     new_info = Map.put(user.info, "note_count", note_count)
 285
 286     cs = info_changeset(user, %{info: new_info})
 287
 288     update_and_set_cache(cs)
 289   end
 290
 291   def update_note_count(%User{} = user) do
 292     note_count_query = from a in Object,
 293       where: fragment("?->>'actor' = ? and ?->>'type' = 'Note'", a.data, ^user.ap_id, a.data),
 294       select: count(a.id)
 295
 296     note_count = Repo.one(note_count_query)
 297
 298     new_info = Map.put(user.info, "note_count", note_count)
 299
 300     cs = info_changeset(user, %{info: new_info})
 301
 302     update_and_set_cache(cs)
 303   end
 304
 305   def update_follower_count(%User{} = user) do
 306     follower_count_query = from u in User,
 307       where: ^user.follower_address in u.following,
 308       where: u.id != ^user.id,
 309       select: count(u.id)
 310
 311     follower_count = Repo.one(follower_count_query)
 312
 313     new_info = Map.put(user.info, "follower_count", follower_count)
 314
 315     cs = info_changeset(user, %{info: new_info})
 316
 317     update_and_set_cache(cs)
 318   end
 319
 320   def get_notified_from_activity(%Activity{recipients: to}) do
 321     query = from u in User,
 322       where: u.ap_id in ^to,
 323       where: u.local == true
 324
 325     Repo.all(query)
 326   end
 327
 328   def get_recipients_from_activity(%Activity{recipients: to}) do
 329     query = from u in User,
 330       where: u.ap_id in ^to,
 331       or_where: fragment("? && ?", u.following, ^to)
 332
 333     query = from u in query,
 334       where: u.local == true
 335
 336     Repo.all(query)
 337   end
 338
 339   def search(query, resolve) do
 340     if resolve do
 341       User.get_or_fetch_by_nickname(query)
 342     end
 343     q = from u in User,
 344       where: fragment("(to_tsvector('english', ?) || to_tsvector('english', ?)) @@ plainto_tsquery('english', ?)", u.nickname, u.name, ^query),
 345       limit: 20
 346     Repo.all(q)
 347   end
 348
 349   def block(user, %{ap_id: ap_id}) do
 350     blocks = user.info["blocks"] || []
 351     new_blocks = Enum.uniq([ap_id | blocks])
 352     new_info = Map.put(user.info, "blocks", new_blocks)
 353
 354     cs = User.info_changeset(user, %{info: new_info})
 355     update_and_set_cache(cs)
 356   end
 357
 358   def unblock(user, %{ap_id: ap_id}) do
 359     blocks = user.info["blocks"] || []
 360     new_blocks = List.delete(blocks, ap_id)
 361     new_info = Map.put(user.info, "blocks", new_blocks)
 362
 363     cs = User.info_changeset(user, %{info: new_info})
 364     update_and_set_cache(cs)
 365   end
 366
 367   def blocks?(user, %{ap_id: ap_id}) do
 368     blocks = user.info["blocks"] || []
 369     Enum.member?(blocks, ap_id)
 370   end
 371
 372   def local_user_query() do
 373     from u in User,
 374       where: u.local == true
 375   end
 376
 377   def deactivate (%User{} = user) do
 378     new_info = Map.put(user.info, "deactivated", true)
 379     cs = User.info_changeset(user, %{info: new_info})
 380     update_and_set_cache(cs)
 381   end
 382
 383   def delete (%User{} = user) do
 384     {:ok, user} = User.deactivate(user)
 385
 386     # Remove all relationships
 387     {:ok, followers } = User.get_followers(user)
 388     followers
 389     |> Enum.each(fn (follower) -> User.unfollow(follower, user) end)
 390
 391     {:ok, friends} = User.get_friends(user)
 392     friends
 393     |> Enum.each(fn (followed) -> User.unfollow(user, followed) end)
 394
 395     query = from a in Activity,
 396       where: a.actor == ^user.ap_id
 397
 398     Repo.all(query)
 399     |> Enum.each(fn (activity) ->
 400       case activity.data["type"] do
 401         "Create" -> ActivityPub.delete(Object.get_by_ap_id(activity.data["object"]["id"]))
 402         _ -> "Doing nothing" # TODO: Do something with likes, follows, repeats.
 403       end
 404     end)
 405
 406     :ok
 407   end
 408
 409   def get_or_fetch_by_ap_id(ap_id) do
 410     if user = get_by_ap_id(ap_id) do
 411       user
 412     else
 413       ap_try = ActivityPub.make_user_from_ap_id(ap_id)
 414
 415       case ap_try do
 416         {:ok, user} -> user
 417         _ ->
 418           case OStatus.make_user(ap_id) do
 419             {:ok, user} -> user
 420             _ -> {:error, "Could not fetch by AP id"}
 421           end
 422       end
 423     end
 424   end
 425
 426   # AP style
 427   def public_key_from_info(%{"source_data" => %{"publicKey" => %{"publicKeyPem" => public_key_pem}}}) do
 428      key = :public_key.pem_decode(public_key_pem)
 429      |> hd()
 430      |> :public_key.pem_entry_decode()
 431
 432      {:ok, key}
 433   end
 434
 435   # OStatus Magic Key
 436   def public_key_from_info(%{"magic_key" => magic_key}) do
 437     {:ok, Pleroma.Web.Salmon.decode_key(magic_key)}
 438   end
 439
 440   def get_public_key_for_ap_id(ap_id) do
 441     with %User{} = user <- get_or_fetch_by_ap_id(ap_id),
 442          {:ok, public_key} <- public_key_from_info(user.info) do
 443       {:ok, public_key}
 444     else
 445       _ -> :error
 446     end
 447   end
 448
 449   defp blank?(""), do: nil
 450   defp blank?(n), do: n
 451
 452   def insert_or_update_user(data) do
 453     data = data
 454     |> Map.put(:name, blank?(data[:name]) || data[:nickname])
 455     cs = User.remote_user_creation(data)
 456     Repo.insert(cs, on_conflict: :replace_all, conflict_target: :nickname)
 457   end
 458
 459   def ap_enabled?(%User{info: info}), do: info["ap_enabled"]
 460   def ap_enabled?(_), do: false
 461
 462   def get_or_fetch(uri_or_nickname) do
 463     if String.starts_with?(uri_or_nickname, "http") do
 464       get_or_fetch_by_ap_id(uri_or_nickname)
 465     else
 466       get_or_fetch_by_nickname(uri_or_nickname)
 467     end
 468   end
 469 end