defmodule Pleroma.User do use Ecto.Schema import Ecto.{Changeset, Query} alias Pleroma.{Repo, User, Object, Web} alias Comeonin.Pbkdf2 alias Pleroma.Web.{OStatus, Websub} alias Pleroma.Web.ActivityPub.ActivityPub alias Pleroma.Web.ActivityPub.Utils schema "users" do field :bio, :string field :email, :string field :name, :string field :nickname, :string field :password_hash, :string field :password, :string, virtual: true field :password_confirmation, :string, virtual: true field :following, {:array, :string}, default: [] field :ap_id, :string field :avatar, :map field :local, :boolean, default: true field :info, :map, default: %{} field :follower_address, :string timestamps() end def avatar_url(user) do case user.avatar do %{"url" => [%{"href" => href} | _]} -> href _ -> "https://placehold.it/48x48" end end def ap_id(%User{nickname: nickname}) do "#{Web.base_url}/users/#{nickname}" end def ap_followers(%User{} = user) do "#{ap_id(user)}/followers" end def follow_changeset(struct, params \\ %{}) do struct |> cast(params, [:following]) |> validate_required([:following]) end def info_changeset(struct, params \\ %{}) do struct |> cast(params, [:info]) |> validate_required([:info]) end def user_info(%User{} = user) do note_count_query = from a in Object, where: fragment("? @> ?", a.data, ^%{actor: user.ap_id, type: "Note"}), select: count(a.id) follower_count_query = from u in User, where: fragment("? @> ?", u.following, ^user.follower_address), select: count(u.id) %{ following_count: length(user.following), note_count: Repo.one(note_count_query), follower_count: Repo.one(follower_count_query) } end @email_regex ~r/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/ def remote_user_creation(params) do changes = %User{} |> cast(params, [:bio, :name, :ap_id, :nickname, :info, :avatar]) |> validate_required([:name, :ap_id, :nickname]) |> unique_constraint(:nickname) |> validate_format(:nickname, @email_regex) |> validate_length(:bio, max: 5000) |> validate_length(:name, max: 100) |> put_change(:local, false) if changes.valid? do followers = User.ap_followers(%User{nickname: changes.changes[:nickname]}) changes |> put_change(:follower_address, followers) else changes end end def register_changeset(struct, params \\ %{}) do changeset = struct |> cast(params, [:bio, :email, :name, :nickname, :password, :password_confirmation]) |> validate_required([:bio, :email, :name, :nickname, :password, :password_confirmation]) |> validate_confirmation(:password) |> unique_constraint(:email) |> unique_constraint(:nickname) |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/) |> validate_format(:email, @email_regex) |> validate_length(:bio, max: 1000) |> validate_length(:name, max: 100) if changeset.valid? do hashed = Pbkdf2.hashpwsalt(changeset.changes[:password]) ap_id = User.ap_id(%User{nickname: changeset.changes[:nickname]}) followers = User.ap_followers(%User{nickname: changeset.changes[:nickname]}) changeset |> put_change(:password_hash, hashed) |> put_change(:ap_id, ap_id) |> put_change(:following, [followers]) |> put_change(:follower_address, followers) else changeset end end def follow(%User{} = follower, %User{} = followed) do ap_followers = followed.follower_address if following?(follower, followed) do {:error, "Could not follow user: #{followed.nickname} is already on your list."} else if !followed.local && follower.local do Websub.subscribe(follower, followed) end following = [ap_followers | follower.following] |> Enum.uniq follower |> follow_changeset(%{following: following}) |> Repo.update end end def unfollow(%User{} = follower, %User{} = followed) do ap_followers = followed.follower_address if following?(follower, followed) do following = follower.following |> List.delete(ap_followers) { :ok, follower } = follower |> follow_changeset(%{following: following}) |> Repo.update { :ok, follower, Utils.fetch_latest_follow(follower, followed)} else {:error, "Not subscribed!"} end end def following?(%User{} = follower, %User{} = followed) do Enum.member?(follower.following, followed.follower_address) end def get_by_ap_id(ap_id) do Repo.get_by(User, ap_id: ap_id) end def get_cached_by_ap_id(ap_id) do key = "ap_id:#{ap_id}" Cachex.get!(:user_cache, key, fallback: fn(_) -> get_by_ap_id(ap_id) end) end def get_cached_by_nickname(nickname) do key = "nickname:#{nickname}" Cachex.get!(:user_cache, key, fallback: fn(_) -> get_or_fetch_by_nickname(nickname) end) end def get_by_nickname(nickname) do Repo.get_by(User, nickname: nickname) end def get_cached_user_info(user) do key = "user_info:#{user.id}" Cachex.get!(:user_cache, key, fallback: fn(_) -> user_info(user) end) end def get_or_fetch_by_nickname(nickname) do with %User{} = user <- get_by_nickname(nickname) do user else _e -> with [nick, domain] <- String.split(nickname, "@"), {:ok, user} <- OStatus.make_user(nickname) do user else _e -> nil end end end # TODO: these queries could be more efficient if the type in postgresql wasn't map, but array. def get_followers(%User{id: id, follower_address: follower_address}) do q = from u in User, where: fragment("? @> ?", u.following, ^follower_address ), where: u.id != ^id {:ok, Repo.all(q)} end def get_friends(%User{id: id, following: following}) do q = from u in User, where: u.follower_address in ^following, where: u.id != ^id {:ok, Repo.all(q)} end end