defmodule Pleroma.User do use Ecto.Schema import Ecto.{Changeset, Query} alias Pleroma.{Repo, User, Object, Web, Activity, Notification} alias Comeonin.Pbkdf2 alias Pleroma.Web.{OStatus, Websub} alias Pleroma.Web.ActivityPub.{Utils, ActivityPub} 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) field(:search_distance, :float, virtual: true) has_many(:notifications, Notification) timestamps() end def avatar_url(user) do case user.avatar do %{"url" => [%{"href" => href} | _]} -> href _ -> "#{Web.base_url()}/images/avi.png" end end def banner_url(user) do case user.info["banner"] do %{"url" => [%{"href" => href} | _]} -> href _ -> "#{Web.base_url()}/images/banner.png" 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 oneself = if user.local, do: 1, else: 0 %{ following_count: length(user.following) - oneself, note_count: user.info["note_count"] || 0, follower_count: user.info["follower_count"] || 0, locked: user.info["locked"] || false } 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 case changes.changes[:info]["source_data"] do %{"followers" => followers} -> changes |> put_change(:follower_address, followers) _ -> followers = User.ap_followers(%User{nickname: changes.changes[:nickname]}) changes |> put_change(:follower_address, followers) end else changes end end def update_changeset(struct, params \\ %{}) do struct |> cast(params, [:bio, :name]) |> unique_constraint(:nickname) |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/) |> validate_length(:bio, max: 5000) |> validate_length(:name, min: 1, max: 100) end def upgrade_changeset(struct, params \\ %{}) do struct |> cast(params, [:bio, :name, :info, :follower_address, :avatar]) |> unique_constraint(:nickname) |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/) |> validate_length(:bio, max: 5000) |> validate_length(:name, max: 100) end def password_update_changeset(struct, params) do changeset = struct |> cast(params, [:password, :password_confirmation]) |> validate_required([:password, :password_confirmation]) |> validate_confirmation(:password) if changeset.valid? do hashed = Pbkdf2.hashpwsalt(changeset.changes[:password]) changeset |> put_change(:password_hash, hashed) else changeset end end def reset_password(user, data) do update_and_set_cache(password_update_changeset(user, data)) end def register_changeset(struct, params \\ %{}) do changeset = struct |> cast(params, [:bio, :email, :name, :nickname, :password, :password_confirmation]) |> validate_required([: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, min: 1, 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 maybe_direct_follow(%User{} = follower, %User{info: info} = followed) do user_info = user_info(followed) should_direct_follow = cond do # if the account is locked, don't pre-create the relationship user_info[:locked] == true -> false # if the users are blocking each other, we shouldn't even be here, but check for it anyway User.blocks?(follower, followed) == true or User.blocks?(followed, follower) == true -> false # if OStatus, then there is no three-way handshake to follow User.ap_enabled?(followed) != true -> true # if there are no other reasons not to, just pre-create the relationship true -> true end if should_direct_follow do follow(follower, followed) else {:ok, follower} end end def maybe_follow(%User{} = follower, %User{info: info} = followed) do if not following?(follower, followed) do follow(follower, followed) else {:ok, follower} end end def follow(%User{} = follower, %User{info: info} = followed) do ap_followers = followed.follower_address cond do following?(follower, followed) or info["deactivated"] -> {:error, "Could not follow user: #{followed.nickname} is already on your list."} blocks?(followed, follower) -> {:error, "Could not follow user: #{followed.nickname} blocked you."} true -> if !followed.local && follower.local && !ap_enabled?(followed) do Websub.subscribe(follower, followed) end following = [ap_followers | follower.following] |> Enum.uniq() follower = follower |> follow_changeset(%{following: following}) |> update_and_set_cache {:ok, _} = update_follower_count(followed) follower end end def unfollow(%User{} = follower, %User{} = followed) do ap_followers = followed.follower_address if following?(follower, followed) and follower.ap_id != followed.ap_id do following = follower.following |> List.delete(ap_followers) {:ok, follower} = follower |> follow_changeset(%{following: following}) |> update_and_set_cache {:ok, followed} = update_follower_count(followed) {: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 locked?(%User{} = user) do user.info["locked"] || false end def get_by_ap_id(ap_id) do Repo.get_by(User, ap_id: ap_id) end def update_and_set_cache(changeset) do with {:ok, user} <- Repo.update(changeset) do Cachex.put(:user_cache, "ap_id:#{user.ap_id}", user) Cachex.put(:user_cache, "nickname:#{user.nickname}", user) Cachex.put(:user_cache, "user_info:#{user.id}", user_info(user)) {:ok, user} else e -> e end end def invalidate_cache(user) do Cachex.del(:user_cache, "ap_id:#{user.ap_id}") Cachex.del(:user_cache, "nickname:#{user.nickname}") end def get_cached_by_ap_id(ap_id) do key = "ap_id:#{ap_id}" Cachex.fetch!(:user_cache, key, fn _ -> get_by_ap_id(ap_id) end) end def get_cached_by_nickname(nickname) do key = "nickname:#{nickname}" Cachex.fetch!(:user_cache, key, fn _ -> get_or_fetch_by_nickname(nickname) end) end def get_by_nickname(nickname) do Repo.get_by(User, nickname: nickname) end def get_by_nickname_or_email(nickname_or_email) do case user = Repo.get_by(User, nickname: nickname_or_email) do %User{} -> user nil -> Repo.get_by(User, email: nickname_or_email) end end def get_cached_user_info(user) do key = "user_info:#{user.id}" Cachex.fetch!(:user_cache, key, fn _ -> user_info(user) end) end def fetch_by_nickname(nickname) do ap_try = ActivityPub.make_user_from_nickname(nickname) case ap_try do {:ok, user} -> {:ok, user} _ -> OStatus.make_user(nickname) 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} <- fetch_by_nickname(nickname) do user else _e -> nil end end end def get_followers_query(%User{id: id, follower_address: follower_address}) do from( u in User, where: fragment("? <@ ?", ^[follower_address], u.following), where: u.id != ^id ) end def get_followers(user) do q = get_followers_query(user) {:ok, Repo.all(q)} end def get_friends_query(%User{id: id, following: following}) do from( u in User, where: u.follower_address in ^following, where: u.id != ^id ) end def get_friends(user) do q = get_friends_query(user) {:ok, Repo.all(q)} end def get_follow_requests_query(%User{} = user) do from( a in Activity, where: fragment( "? ->> 'type' = 'Follow'", a.data ), where: fragment( "? ->> 'state' = 'pending'", a.data ), where: fragment( "? @> ?", a.data, ^%{"object" => user.ap_id} ) ) end def get_follow_requests(%User{} = user) do q = get_follow_requests_query(user) reqs = Repo.all(q) users = Enum.map(reqs, fn req -> req.actor end) |> Enum.uniq() |> Enum.map(fn ap_id -> get_by_ap_id(ap_id) end) {:ok, users} end def increase_note_count(%User{} = user) do note_count = (user.info["note_count"] || 0) + 1 new_info = Map.put(user.info, "note_count", note_count) cs = info_changeset(user, %{info: new_info}) update_and_set_cache(cs) end def decrease_note_count(%User{} = user) do note_count = user.info["note_count"] || 0 note_count = if note_count <= 0, do: 0, else: note_count - 1 new_info = Map.put(user.info, "note_count", note_count) cs = info_changeset(user, %{info: new_info}) update_and_set_cache(cs) end def update_note_count(%User{} = user) do note_count_query = from( a in Object, where: fragment("?->>'actor' = ? and ?->>'type' = 'Note'", a.data, ^user.ap_id, a.data), select: count(a.id) ) note_count = Repo.one(note_count_query) new_info = Map.put(user.info, "note_count", note_count) cs = info_changeset(user, %{info: new_info}) update_and_set_cache(cs) end def update_follower_count(%User{} = user) do follower_count_query = from( u in User, where: ^user.follower_address in u.following, where: u.id != ^user.id, select: count(u.id) ) follower_count = Repo.one(follower_count_query) new_info = Map.put(user.info, "follower_count", follower_count) cs = info_changeset(user, %{info: new_info}) update_and_set_cache(cs) end def get_notified_from_activity_query(to) do from( u in User, where: u.ap_id in ^to, where: u.local == true ) end def get_notified_from_activity(%Activity{recipients: to, data: %{"type" => "Announce"} = data}) do object = Object.normalize(data["object"]) # ensure that the actor who published the announced object appears only once to = (to ++ [object.data["actor"]]) |> Enum.uniq() query = get_notified_from_activity_query(to) Repo.all(query) end def get_notified_from_activity(%Activity{recipients: to}) do query = get_notified_from_activity_query(to) Repo.all(query) end def get_recipients_from_activity(%Activity{recipients: to}) do query = from( u in User, where: u.ap_id in ^to, or_where: fragment("? && ?", u.following, ^to) ) query = from(u in query, where: u.local == true) Repo.all(query) end def search(query, resolve) do # strip the beginning @ off if there is a query query = String.trim_leading(query, "@") if resolve do User.get_or_fetch_by_nickname(query) end inner = from( u in User, select_merge: %{ search_distance: fragment( "? <-> (? || ?)", ^query, u.nickname, u.name ) } ) q = from( s in subquery(inner), order_by: s.search_distance, limit: 20 ) Repo.all(q) end def block(user, %{ap_id: ap_id}) do blocks = user.info["blocks"] || [] new_blocks = Enum.uniq([ap_id | blocks]) new_info = Map.put(user.info, "blocks", new_blocks) cs = User.info_changeset(user, %{info: new_info}) update_and_set_cache(cs) end def unblock(user, %{ap_id: ap_id}) do blocks = user.info["blocks"] || [] new_blocks = List.delete(blocks, ap_id) new_info = Map.put(user.info, "blocks", new_blocks) cs = User.info_changeset(user, %{info: new_info}) update_and_set_cache(cs) end def blocks?(user, %{ap_id: ap_id}) do blocks = user.info["blocks"] || [] domain_blocks = user.info["domain_blocks"] || [] %{host: host} = URI.parse(ap_id) Enum.member?(blocks, ap_id) || Enum.any?(domain_blocks, fn domain -> host == domain end) end def block_domain(user, domain) do domain_blocks = user.info["domain_blocks"] || [] new_blocks = Enum.uniq([domain | domain_blocks]) new_info = Map.put(user.info, "domain_blocks", new_blocks) cs = User.info_changeset(user, %{info: new_info}) update_and_set_cache(cs) end def unblock_domain(user, domain) do blocks = user.info["domain_blocks"] || [] new_blocks = List.delete(blocks, domain) new_info = Map.put(user.info, "domain_blocks", new_blocks) cs = User.info_changeset(user, %{info: new_info}) update_and_set_cache(cs) end def local_user_query() do from(u in User, where: u.local == true) end def deactivate(%User{} = user) do new_info = Map.put(user.info, "deactivated", true) cs = User.info_changeset(user, %{info: new_info}) update_and_set_cache(cs) end def delete(%User{} = user) do {:ok, user} = User.deactivate(user) # Remove all relationships {:ok, followers} = User.get_followers(user) followers |> Enum.each(fn follower -> User.unfollow(follower, user) end) {:ok, friends} = User.get_friends(user) friends |> Enum.each(fn followed -> User.unfollow(user, followed) end) query = from(a in Activity, where: a.actor == ^user.ap_id) Repo.all(query) |> Enum.each(fn activity -> case activity.data["type"] do "Create" -> ActivityPub.delete(Object.get_by_ap_id(activity.data["object"]["id"])) # TODO: Do something with likes, follows, repeats. _ -> "Doing nothing" end end) :ok end def get_or_fetch_by_ap_id(ap_id) do if user = get_by_ap_id(ap_id) do user else ap_try = ActivityPub.make_user_from_ap_id(ap_id) case ap_try do {:ok, user} -> user _ -> case OStatus.make_user(ap_id) do {:ok, user} -> user _ -> {:error, "Could not fetch by AP id"} end end end end # AP style def public_key_from_info(%{ "source_data" => %{"publicKey" => %{"publicKeyPem" => public_key_pem}} }) do key = :public_key.pem_decode(public_key_pem) |> hd() |> :public_key.pem_entry_decode() {:ok, key} end # OStatus Magic Key def public_key_from_info(%{"magic_key" => magic_key}) do {:ok, Pleroma.Web.Salmon.decode_key(magic_key)} end def get_public_key_for_ap_id(ap_id) do with %User{} = user <- get_or_fetch_by_ap_id(ap_id), {:ok, public_key} <- public_key_from_info(user.info) do {:ok, public_key} else _ -> :error end end defp blank?(""), do: nil defp blank?(n), do: n def insert_or_update_user(data) do data = data |> Map.put(:name, blank?(data[:name]) || data[:nickname]) cs = User.remote_user_creation(data) Repo.insert(cs, on_conflict: :replace_all, conflict_target: :nickname) end def ap_enabled?(%User{info: info}), do: info["ap_enabled"] def ap_enabled?(_), do: false def get_or_fetch(uri_or_nickname) do if String.starts_with?(uri_or_nickname, "http") do get_or_fetch_by_ap_id(uri_or_nickname) else get_or_fetch_by_nickname(uri_or_nickname) end end end