Merge remote-tracking branch 'pleroma/develop' into feature/addressable-lists

This commit is contained in:
Egor Kislitsyn 2019-05-15 14:31:24 +07:00
commit a7a8f3bc2c
23 changed files with 463 additions and 168 deletions

View file

@ -132,7 +132,10 @@ defmodule Pleroma.Activity do
end
def get_by_id(id) do
Repo.get(Activity, id)
Activity
|> where([a], a.id == ^id)
|> restrict_deactivated_users()
|> Repo.one()
end
def get_by_id_with_object(id) do
@ -200,6 +203,7 @@ defmodule Pleroma.Activity do
def get_create_by_object_ap_id(ap_id) when is_binary(ap_id) do
create_by_object_ap_id(ap_id)
|> restrict_deactivated_users()
|> Repo.one()
end
@ -314,4 +318,14 @@ defmodule Pleroma.Activity do
def query_by_actor(actor) do
from(a in Activity, where: a.actor == ^actor)
end
def restrict_deactivated_users(query) do
from(activity in query,
where:
fragment(
"? not in (SELECT ap_id FROM users WHERE info->'deactivated' @> 'true')",
activity.actor
)
)
end
end

View file

@ -12,8 +12,12 @@ defmodule Pleroma.Config do
def get([key], default), do: get(key, default)
def get([parent_key | keys], default) do
Application.get_env(:pleroma, parent_key)
|> get_in(keys) || default
case :pleroma
|> Application.get_env(parent_key)
|> get_in(keys) do
nil -> default
any -> any
end
end
def get(key, default) do

View file

@ -77,13 +77,13 @@ defmodule Pleroma.Gopher.Server.ProtocolHandler do
user = User.get_cached_by_ap_id(activity.data["actor"])
object = Object.normalize(activity)
like_count = object["like_count"] || 0
announcement_count = object["announcement_count"] || 0
like_count = object.data["like_count"] || 0
announcement_count = object.data["announcement_count"] || 0
link("Post ##{activity.id} by #{user.nickname}", "/notices/#{activity.id}") <>
info("#{like_count} likes, #{announcement_count} repeats") <>
"i\tfake\t(NULL)\t0\r\n" <>
info(HTML.strip_tags(String.replace(object["content"], "<br>", "\r")))
info(HTML.strip_tags(String.replace(object.data["content"], "<br>", "\r")))
end)
|> Enum.join("i\tfake\t(NULL)\t0\r\n")
end

View file

@ -33,6 +33,13 @@ defmodule Pleroma.Notification do
def for_user_query(user) do
Notification
|> where(user_id: ^user.id)
|> where(
[n, a],
fragment(
"? not in (SELECT ap_id FROM users WHERE info->'deactivated' @> 'true')",
a.actor
)
)
|> join(:inner, [n], activity in assoc(n, :activity))
|> join(:left, [n, a], object in Object,
on:

View file

@ -105,10 +105,8 @@ defmodule Pleroma.User do
def ap_followers(%User{} = user), do: "#{ap_id(user)}/followers"
def user_info(%User{} = user) do
oneself = if user.local, do: 1, else: 0
%{
following_count: length(user.following) - oneself,
following_count: following_count(user),
note_count: user.info.note_count,
follower_count: user.info.follower_count,
locked: user.info.locked,
@ -117,6 +115,20 @@ defmodule Pleroma.User do
}
end
def restrict_deactivated(query) do
from(u in query,
where: not fragment("? \\? 'deactivated' AND ?->'deactivated' @> 'true'", u.info, u.info)
)
end
def following_count(%User{following: []}), do: 0
def following_count(%User{} = user) do
user
|> get_friends_query()
|> Repo.aggregate(:count, :id)
end
def remote_user_creation(params) do
params =
params
@ -255,7 +267,7 @@ defmodule Pleroma.User do
candidates = Pleroma.Config.get([:instance, :autofollowed_nicknames])
autofollowed_users =
User.Query.build(%{nickname: candidates, local: true})
User.Query.build(%{nickname: candidates, local: true, deactivated: false})
|> Repo.all()
follow_all(user, autofollowed_users)
@ -413,24 +425,6 @@ defmodule Pleroma.User do
Enum.member?(follower.following, followed.follower_address)
end
def follow_import(%User{} = follower, followed_identifiers)
when is_list(followed_identifiers) do
Enum.map(
followed_identifiers,
fn followed_identifier ->
with {:ok, %User{} = followed} <- get_or_fetch(followed_identifier),
{:ok, follower} <- maybe_direct_follow(follower, followed),
{:ok, _} <- ActivityPub.follow(follower, followed) do
followed
else
err ->
Logger.debug("follow_import failed for #{followed_identifier} with: #{inspect(err)}")
err
end
end
)
end
def locked?(%User{} = user) do
user.info.locked || false
end
@ -552,8 +546,7 @@ defmodule Pleroma.User do
with [_nick, _domain] <- String.split(nickname, "@"),
{:ok, user} <- fetch_by_nickname(nickname) do
if Pleroma.Config.get([:fetch_initial_posts, :enabled]) do
# TODO turn into job
{:ok, _} = Task.start(__MODULE__, :fetch_initial_posts, [user])
fetch_initial_posts(user)
end
{:ok, user}
@ -564,19 +557,12 @@ defmodule Pleroma.User do
end
@doc "Fetch some posts when the user has just been federated with"
def fetch_initial_posts(user) do
pages = Pleroma.Config.get!([:fetch_initial_posts, :pages])
Enum.each(
# Insert all the posts in reverse order, so they're in the right order on the timeline
Enum.reverse(Utils.fetch_ordered_collection(user.info.source_data["outbox"], pages)),
&Pleroma.Web.Federator.incoming_ap_doc/1
)
end
def fetch_initial_posts(user),
do: PleromaJobQueue.enqueue(:background, __MODULE__, [:fetch_initial_posts, user])
@spec get_followers_query(User.t(), pos_integer() | nil) :: Ecto.Query.t()
def get_followers_query(%User{} = user, nil) do
User.Query.build(%{followers: user})
User.Query.build(%{followers: user, deactivated: false})
end
def get_followers_query(user, page) do
@ -601,7 +587,7 @@ defmodule Pleroma.User do
@spec get_friends_query(User.t(), pos_integer() | nil) :: Ecto.Query.t()
def get_friends_query(%User{} = user, nil) do
User.Query.build(%{friends: user})
User.Query.build(%{friends: user, deactivated: false})
end
def get_friends_query(user, page) do
@ -691,16 +677,16 @@ defmodule Pleroma.User do
info_cng = User.Info.set_note_count(user.info, note_count)
cng =
change(user)
|> put_embed(:info, info_cng)
update_and_set_cache(cng)
user
|> change()
|> put_embed(:info, info_cng)
|> update_and_set_cache()
end
def update_follower_count(%User{} = user) do
follower_count_query =
User.Query.build(%{followers: user}) |> select([u], %{count: count(u.id)})
User.Query.build(%{followers: user, deactivated: false})
|> select([u], %{count: count(u.id)})
User
|> where(id: ^user.id)
@ -725,7 +711,7 @@ defmodule Pleroma.User do
@spec get_users_from_set([String.t()], boolean()) :: [User.t()]
def get_users_from_set(ap_ids, local_only \\ true) do
criteria = %{ap_id: ap_ids}
criteria = %{ap_id: ap_ids, deactivated: false}
criteria = if local_only, do: Map.put(criteria, :local, true), else: criteria
User.Query.build(criteria)
@ -734,7 +720,7 @@ defmodule Pleroma.User do
@spec get_recipients_from_activity(Activity.t()) :: [User.t()]
def get_recipients_from_activity(%Activity{recipients: to}) do
User.Query.build(%{recipients_from_activity: to, local: true})
User.Query.build(%{recipients_from_activity: to, local: true, deactivated: false})
|> Repo.all()
end
@ -832,6 +818,7 @@ defmodule Pleroma.User do
^processed_query
)
)
|> restrict_deactivated()
end
defp trigram_search_subquery(term) do
@ -850,23 +837,7 @@ defmodule Pleroma.User do
},
where: fragment("trim(? || ' ' || coalesce(?, '')) % ?", u.nickname, u.name, ^term)
)
end
def blocks_import(%User{} = blocker, blocked_identifiers) when is_list(blocked_identifiers) do
Enum.map(
blocked_identifiers,
fn blocked_identifier ->
with {:ok, %User{} = blocked} <- get_or_fetch(blocked_identifier),
{:ok, blocker} <- block(blocker, blocked),
{:ok, _} <- ActivityPub.block(blocker, blocked) do
blocked
else
err ->
Logger.debug("blocks_import failed for #{blocked_identifier} with: #{inspect(err)}")
err
end
end
)
|> restrict_deactivated()
end
def mute(muter, %User{ap_id: ap_id}) do
@ -999,19 +970,19 @@ defmodule Pleroma.User do
@spec muted_users(User.t()) :: [User.t()]
def muted_users(user) do
User.Query.build(%{ap_id: user.info.mutes})
User.Query.build(%{ap_id: user.info.mutes, deactivated: false})
|> Repo.all()
end
@spec blocked_users(User.t()) :: [User.t()]
def blocked_users(user) do
User.Query.build(%{ap_id: user.info.blocks})
User.Query.build(%{ap_id: user.info.blocks, deactivated: false})
|> Repo.all()
end
@spec subscribers(User.t()) :: [User.t()]
def subscribers(user) do
User.Query.build(%{ap_id: user.info.subscribers})
User.Query.build(%{ap_id: user.info.subscribers, deactivated: false})
|> Repo.all()
end
@ -1039,14 +1010,25 @@ defmodule Pleroma.User do
update_and_set_cache(cng)
end
def deactivate_async(user, status \\ true) do
PleromaJobQueue.enqueue(:background, __MODULE__, [:deactivate_async, user, status])
end
def deactivate(%User{} = user, status \\ true) do
info_cng = User.Info.set_activation_status(user.info, status)
cng =
change(user)
|> put_embed(:info, info_cng)
with {:ok, friends} <- User.get_friends(user),
{:ok, followers} <- User.get_followers(user),
{:ok, user} <-
user
|> change()
|> put_embed(:info, info_cng)
|> update_and_set_cache() do
Enum.each(followers, &invalidate_cache(&1))
Enum.each(friends, &update_follower_count(&1))
update_and_set_cache(cng)
{:ok, user}
end
end
def update_notification_settings(%User{} = user, settings \\ %{}) do
@ -1077,6 +1059,75 @@ defmodule Pleroma.User do
delete_user_activities(user)
end
@spec perform(atom(), User.t()) :: {:ok, User.t()}
def perform(:fetch_initial_posts, %User{} = user) do
pages = Pleroma.Config.get!([:fetch_initial_posts, :pages])
Enum.each(
# Insert all the posts in reverse order, so they're in the right order on the timeline
Enum.reverse(Utils.fetch_ordered_collection(user.info.source_data["outbox"], pages)),
&Pleroma.Web.Federator.incoming_ap_doc/1
)
{:ok, user}
end
def perform(:deactivate_async, user, status), do: deactivate(user, status)
@spec perform(atom(), User.t(), list()) :: list() | {:error, any()}
def perform(:blocks_import, %User{} = blocker, blocked_identifiers)
when is_list(blocked_identifiers) do
Enum.map(
blocked_identifiers,
fn blocked_identifier ->
with {:ok, %User{} = blocked} <- get_or_fetch(blocked_identifier),
{:ok, blocker} <- block(blocker, blocked),
{:ok, _} <- ActivityPub.block(blocker, blocked) do
blocked
else
err ->
Logger.debug("blocks_import failed for #{blocked_identifier} with: #{inspect(err)}")
err
end
end
)
end
@spec perform(atom(), User.t(), list()) :: list() | {:error, any()}
def perform(:follow_import, %User{} = follower, followed_identifiers)
when is_list(followed_identifiers) do
Enum.map(
followed_identifiers,
fn followed_identifier ->
with {:ok, %User{} = followed} <- get_or_fetch(followed_identifier),
{:ok, follower} <- maybe_direct_follow(follower, followed),
{:ok, _} <- ActivityPub.follow(follower, followed) do
followed
else
err ->
Logger.debug("follow_import failed for #{followed_identifier} with: #{inspect(err)}")
err
end
end
)
end
def blocks_import(%User{} = blocker, blocked_identifiers) when is_list(blocked_identifiers),
do:
PleromaJobQueue.enqueue(:background, __MODULE__, [
:blocks_import,
blocker,
blocked_identifiers
])
def follow_import(%User{} = follower, followed_identifiers) when is_list(followed_identifiers),
do:
PleromaJobQueue.enqueue(:background, __MODULE__, [
:follow_import,
follower,
followed_identifiers
])
def delete_user_activities(%User{ap_id: ap_id} = user) do
stream =
ap_id
@ -1130,8 +1181,8 @@ defmodule Pleroma.User do
resp = fetch_by_ap_id(ap_id)
if should_fetch_initial do
with {:ok, %User{} = user} = resp do
{:ok, _} = Task.start(__MODULE__, :fetch_initial_posts, [user])
with {:ok, %User{} = user} <- resp do
fetch_initial_posts(user)
end
end
@ -1320,7 +1371,7 @@ defmodule Pleroma.User do
@spec all_superusers() :: [User.t()]
def all_superusers do
User.Query.build(%{super_users: true, local: true})
User.Query.build(%{super_users: true, local: true, deactivated: false})
|> Repo.all()
end

View file

@ -118,7 +118,11 @@ defmodule Pleroma.User.Query do
|> where([u], not is_nil(u.nickname))
end
defp compose_query({:deactivated, _}, query) do
defp compose_query({:deactivated, false}, query) do
User.restrict_deactivated(query)
end
defp compose_query({:deactivated, true}, query) do
where(query, [u], fragment("?->'deactivated' @> 'true'", u.info))
|> where([u], not is_nil(u.nickname))
end

View file

@ -132,9 +132,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
activity
end
Task.start(fn ->
Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
end)
PleromaJobQueue.enqueue(:background, Pleroma.Web.RichMedia.Helpers, [:fetch, activity])
Notification.create_notifications(activity)
@ -851,6 +849,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
|> restrict_reblogs(opts)
|> restrict_pinned(opts)
|> restrict_muted_reblogs(opts)
|> Activity.restrict_deactivated_users()
end
def fetch_activities(recipients, opts \\ %{}) do

View file

@ -19,8 +19,6 @@ defmodule Pleroma.Web.OAuth.OAuthController do
if Pleroma.Config.oauth_consumer_enabled?(), do: plug(Ueberauth)
@expires_in Pleroma.Config.get([:oauth2, :token_expires_in], 600)
plug(:fetch_session)
plug(:fetch_flash)
@ -144,14 +142,14 @@ defmodule Pleroma.Web.OAuth.OAuthController do
@doc "Renew access_token with refresh_token"
def token_exchange(
conn,
%{"grant_type" => "refresh_token", "refresh_token" => token} = params
%{"grant_type" => "refresh_token", "refresh_token" => token} = _params
) do
with %App{} = app <- get_app_from_request(conn, params),
with {:ok, app} <- Token.Utils.fetch_app(conn),
{:ok, %{user: user} = token} <- Token.get_by_refresh_token(app, token),
{:ok, token} <- RefreshToken.grant(token) do
response_attrs = %{created_at: Token.Utils.format_created_at(token)}
json(conn, response_token(user, token, response_attrs))
json(conn, Token.Response.build(user, token, response_attrs))
else
_error ->
put_status(conn, 400)
@ -160,14 +158,14 @@ defmodule Pleroma.Web.OAuth.OAuthController do
end
def token_exchange(conn, %{"grant_type" => "authorization_code"} = params) do
with %App{} = app <- get_app_from_request(conn, params),
with {:ok, app} <- Token.Utils.fetch_app(conn),
fixed_token = Token.Utils.fix_padding(params["code"]),
{:ok, auth} <- Authorization.get_by_token(app, fixed_token),
%User{} = user <- User.get_cached_by_id(auth.user_id),
{:ok, token} <- Token.exchange_token(app, auth) do
response_attrs = %{created_at: Token.Utils.format_created_at(token)}
json(conn, response_token(user, token, response_attrs))
json(conn, Token.Response.build(user, token, response_attrs))
else
_error ->
put_status(conn, 400)
@ -179,14 +177,14 @@ defmodule Pleroma.Web.OAuth.OAuthController do
conn,
%{"grant_type" => "password"} = params
) do
with {_, {:ok, %User{} = user}} <- {:get_user, Authenticator.get_user(conn)},
%App{} = app <- get_app_from_request(conn, params),
with {:ok, %User{} = user} <- Authenticator.get_user(conn),
{:ok, app} <- Token.Utils.fetch_app(conn),
{:auth_active, true} <- {:auth_active, User.auth_active?(user)},
{:user_active, true} <- {:user_active, !user.info.deactivated},
{:ok, scopes} <- validate_scopes(app, params),
{:ok, auth} <- Authorization.create_authorization(app, user, scopes),
{:ok, token} <- Token.exchange_token(app, auth) do
json(conn, response_token(user, token))
json(conn, Token.Response.build(user, token))
else
{:auth_active, false} ->
# Per https://github.com/tootsuite/mastodon/blob/
@ -218,21 +216,11 @@ defmodule Pleroma.Web.OAuth.OAuthController do
token_exchange(conn, params)
end
def token_exchange(conn, %{"grant_type" => "client_credentials"} = params) do
with %App{} = app <- get_app_from_request(conn, params),
def token_exchange(conn, %{"grant_type" => "client_credentials"} = _params) do
with {:ok, app} <- Token.Utils.fetch_app(conn),
{:ok, auth} <- Authorization.create_authorization(app, %User{}),
{:ok, token} <- Token.exchange_token(app, auth),
{:ok, inserted_at} <- DateTime.from_naive(token.inserted_at, "Etc/UTC") do
response = %{
token_type: "Bearer",
access_token: token.token,
refresh_token: token.refresh_token,
created_at: DateTime.to_unix(inserted_at),
expires_in: 60 * 10,
scope: Enum.join(token.scopes, " ")
}
json(conn, response)
{:ok, token} <- Token.exchange_token(app, auth) do
json(conn, Token.Response.build_for_client_credentials(token))
else
_error ->
put_status(conn, 400)
@ -244,7 +232,7 @@ defmodule Pleroma.Web.OAuth.OAuthController do
def token_exchange(conn, params), do: bad_request(conn, params)
def token_revoke(conn, %{"token" => _token} = params) do
with %App{} = app <- get_app_from_request(conn, params),
with {:ok, app} <- Token.Utils.fetch_app(conn),
{:ok, _token} <- RevokeToken.revoke(app, params) do
json(conn, %{})
else
@ -427,33 +415,6 @@ defmodule Pleroma.Web.OAuth.OAuthController do
end
end
defp get_app_from_request(conn, params) do
conn
|> fetch_client_credentials(params)
|> fetch_client
end
defp fetch_client({id, secret}) when is_binary(id) and is_binary(secret) do
Repo.get_by(App, client_id: id, client_secret: secret)
end
defp fetch_client({_id, _secret}), do: nil
defp fetch_client_credentials(conn, params) do
# Per RFC 6749, HTTP Basic is preferred to body params
with ["Basic " <> encoded] <- get_req_header(conn, "authorization"),
{:ok, decoded} <- Base.decode64(encoded),
[id, secret] <-
Enum.map(
String.split(decoded, ":"),
fn s -> URI.decode_www_form(s) end
) do
{id, secret}
else
_ -> {params["client_id"], params["client_secret"]}
end
end
# Special case: Local MastodonFE
defp redirect_uri(conn, "."), do: mastodon_api_url(conn, :login)
@ -464,18 +425,6 @@ defmodule Pleroma.Web.OAuth.OAuthController do
defp put_session_registration_id(conn, registration_id),
do: put_session(conn, :registration_id, registration_id)
defp response_token(%User{} = user, token, opts \\ %{}) do
%{
token_type: "Bearer",
access_token: token.token,
refresh_token: token.refresh_token,
expires_in: @expires_in,
scope: Enum.join(token.scopes, " "),
me: user.ap_id
}
|> Map.merge(opts)
end
@spec validate_scopes(App.t(), map()) ::
{:ok, list()} | {:error, :missing_scopes | :unsupported_scopes}
defp validate_scopes(app, params) do

View file

@ -0,0 +1,32 @@
defmodule Pleroma.Web.OAuth.Token.Response do
@moduledoc false
alias Pleroma.User
alias Pleroma.Web.OAuth.Token.Utils
@expires_in Pleroma.Config.get([:oauth2, :token_expires_in], 600)
@doc false
def build(%User{} = user, token, opts \\ %{}) do
%{
token_type: "Bearer",
access_token: token.token,
refresh_token: token.refresh_token,
expires_in: @expires_in,
scope: Enum.join(token.scopes, " "),
me: user.ap_id
}
|> Map.merge(opts)
end
def build_for_client_credentials(token) do
%{
token_type: "Bearer",
access_token: token.token,
refresh_token: token.refresh_token,
created_at: Utils.format_created_at(token),
expires_in: @expires_in,
scope: Enum.join(token.scopes, " ")
}
end
end

View file

@ -3,6 +3,44 @@ defmodule Pleroma.Web.OAuth.Token.Utils do
Auxiliary functions for dealing with tokens.
"""
alias Pleroma.Repo
alias Pleroma.Web.OAuth.App
@doc "Fetch app by client credentials from request"
@spec fetch_app(Plug.Conn.t()) :: {:ok, App.t()} | {:error, :not_found}
def fetch_app(conn) do
res =
conn
|> fetch_client_credentials()
|> fetch_client
case res do
%App{} = app -> {:ok, app}
_ -> {:error, :not_found}
end
end
defp fetch_client({id, secret}) when is_binary(id) and is_binary(secret) do
Repo.get_by(App, client_id: id, client_secret: secret)
end
defp fetch_client({_id, _secret}), do: nil
defp fetch_client_credentials(conn) do
# Per RFC 6749, HTTP Basic is preferred to body params
with ["Basic " <> encoded] <- Plug.Conn.get_req_header(conn, "authorization"),
{:ok, decoded} <- Base.decode64(encoded),
[id, secret] <-
Enum.map(
String.split(decoded, ":"),
fn s -> URI.decode_www_form(s) end
) do
{id, secret}
else
_ -> {conn.params["client_id"], conn.params["client_secret"]}
end
end
@doc "convert token inserted_at to unix timestamp"
def format_created_at(%{inserted_at: inserted_at} = _token) do
inserted_at

View file

@ -34,4 +34,6 @@ defmodule Pleroma.Web.RichMedia.Helpers do
end
def fetch_data_for_activity(_), do: %{}
def perform(:fetch, %Activity{} = activity), do: fetch_data_for_activity(activity)
end

View file

@ -215,6 +215,7 @@ defmodule Pleroma.Web.Router do
post("/change_password", UtilController, :change_password)
post("/delete_account", UtilController, :delete_account)
put("/notification_settings", UtilController, :update_notificaton_settings)
post("/disable_account", UtilController, :disable_account)
end
scope [] do

View file

@ -309,8 +309,13 @@ defmodule Pleroma.Web.TwitterAPI.UtilController do
Enum.map(lines, fn line ->
String.split(line, ",") |> List.first()
end)
|> List.delete("Account address"),
{:ok, _} = Task.start(fn -> User.follow_import(follower, followed_identifiers) end) do
|> List.delete("Account address") do
PleromaJobQueue.enqueue(:background, User, [
:follow_import,
follower,
followed_identifiers
])
json(conn, "job started")
end
end
@ -320,8 +325,13 @@ defmodule Pleroma.Web.TwitterAPI.UtilController do
end
def blocks_import(%{assigns: %{user: blocker}} = conn, %{"list" => list}) do
with blocked_identifiers <- String.split(list),
{:ok, _} = Task.start(fn -> User.blocks_import(blocker, blocked_identifiers) end) do
with blocked_identifiers <- String.split(list) do
PleromaJobQueue.enqueue(:background, User, [
:blocks_import,
blocker,
blocked_identifiers
])
json(conn, "job started")
end
end
@ -360,6 +370,17 @@ defmodule Pleroma.Web.TwitterAPI.UtilController do
end
end
def disable_account(%{assigns: %{user: user}} = conn, params) do
case CommonAPI.Utils.confirm_current_password(user, params["password"]) do
{:ok, user} ->
User.deactivate_async(user)
json(conn, %{status: "success"})
{:error, msg} ->
json(conn, %{error: msg})
end
end
def captcha(conn, _params) do
json(conn, Pleroma.Captcha.new())
end

View file

@ -236,12 +236,15 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
def get_user(user \\ nil, params) do
case params do
%{"user_id" => user_id} ->
case target = User.get_cached_by_nickname_or_id(user_id) do
case User.get_cached_by_nickname_or_id(user_id) do
nil ->
{:error, "No user with such user_id"}
_ ->
{:ok, target}
%User{info: %{deactivated: true}} ->
{:error, "User has been disabled"}
user ->
{:ok, user}
end
%{"screen_name" => nickname} ->