# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.Auth.PleromaAuthenticator do
- alias Comeonin.Pbkdf2
- alias Pleroma.User
+ alias Pleroma.Plugs.AuthenticationPlug
alias Pleroma.Registration
alias Pleroma.Repo
+ alias Pleroma.User
- @behaviour Pleroma.Web.Auth.Authenticator
-
- def get_user(%Plug.Conn{} = _conn, params) do
- {name, password} =
- case params do
- %{"authorization" => %{"name" => name, "password" => password}} ->
- {name, password}
+ import Pleroma.Web.Auth.Authenticator,
+ only: [fetch_credentials: 1, fetch_user: 1]
- %{"grant_type" => "password", "username" => name, "password" => password} ->
- {name, password}
- end
+ @behaviour Pleroma.Web.Auth.Authenticator
- with {_, %User{} = user} <- {:user, User.get_by_nickname_or_email(name)},
- {_, true} <- {:checkpw, Pbkdf2.checkpw(password, user.password_hash)} do
+ def get_user(%Plug.Conn{} = conn) do
+ with {:ok, {name, password}} <- fetch_credentials(conn),
+ {_, %User{} = user} <- {:user, fetch_user(name)},
+ {_, true} <- {:checkpw, AuthenticationPlug.checkpw(password, user.password_hash)},
+ {:ok, user} <- AuthenticationPlug.maybe_update_password(user, password) do
{:ok, user}
else
- error ->
- {:error, error}
+ {:error, _reason} = error -> error
+ error -> {:error, error}
end
end
- def get_by_external_registration(
- %Plug.Conn{assigns: %{ueberauth_auth: %{provider: provider, uid: uid} = auth}},
- _params
- ) do
+ @doc """
+ Gets or creates Pleroma.Registration record from Ueberauth assigns.
+ Note: some strategies (like `keycloak`) might need extra configuration to fill `uid` from callback response —
+ see [`docs/config.md`](docs/config.md).
+ """
+ def get_registration(%Plug.Conn{assigns: %{ueberauth_auth: %{uid: nil}}}),
+ do: {:error, :missing_uid}
+
+ def get_registration(%Plug.Conn{
+ assigns: %{ueberauth_auth: %{provider: provider, uid: uid} = auth}
+ }) do
registration = Registration.get_by_provider_uid(provider, uid)
if registration do
- user = Repo.preload(registration, :user).user
- {:ok, user}
+ {:ok, registration}
else
info = auth.info
- email = info.email
- nickname = info.nickname
-
- # Note: nullifying email in case this email is already taken
- email =
- if email && User.get_by_email(email) do
- nil
- else
- email
- end
-
- # Note: generating a random numeric suffix to nickname in case this nickname is already taken
- nickname =
- if nickname && User.get_by_nickname(nickname) do
- "#{nickname}_#{:os.system_time()}"
- else
- nickname
- end
-
- with {:ok, new_user} <-
- User.external_registration_changeset(
- %User{},
- %{
- name: info.name,
- bio: info.description,
- email: email,
- nickname: nickname
- }
- )
- |> Repo.insert(),
- {:ok, _} <-
- Registration.changeset(%Registration{}, %{
- user_id: new_user.id,
- provider: to_string(provider),
- uid: to_string(uid),
- info: %{nickname: info.nickname, email: info.email}
- })
- |> Repo.insert() do
- {:ok, new_user}
- end
+
+ %Registration{}
+ |> Registration.changeset(%{
+ provider: to_string(provider),
+ uid: to_string(uid),
+ info: %{
+ "nickname" => info.nickname,
+ "email" => info.email,
+ "name" => info.name,
+ "description" => info.description
+ }
+ })
+ |> Repo.insert()
end
end
- def get_by_external_registration(%Plug.Conn{} = _conn, _params),
- do: {:error, :missing_credentials}
+ def get_registration(%Plug.Conn{} = _conn), do: {:error, :missing_credentials}
+
+ @doc "Creates Pleroma.User record basing on params and Pleroma.Registration record."
+ def create_from_registration(
+ %Plug.Conn{params: %{"authorization" => registration_attrs}},
+ %Registration{} = registration
+ ) do
+ nickname = value([registration_attrs["nickname"], Registration.nickname(registration)])
+ email = value([registration_attrs["email"], Registration.email(registration)])
+ name = value([registration_attrs["name"], Registration.name(registration)]) || nickname
+ bio = value([registration_attrs["bio"], Registration.description(registration)])
+
+ random_password = :crypto.strong_rand_bytes(64) |> Base.encode64()
+
+ with {:ok, new_user} <-
+ User.register_changeset(
+ %User{},
+ %{
+ email: email,
+ nickname: nickname,
+ name: name,
+ bio: bio,
+ password: random_password,
+ password_confirmation: random_password
+ },
+ external: true,
+ need_confirmation: false
+ )
+ |> Repo.insert(),
+ {:ok, _} <-
+ Registration.changeset(registration, %{user_id: new_user.id}) |> Repo.update() do
+ {:ok, new_user}
+ end
+ end
+
+ defp value(list), do: Enum.find(list, &(to_string(&1) != ""))
def handle_error(%Plug.Conn{} = _conn, error) do
error
end
def auth_template, do: nil
+
+ def oauth_consumer_template, do: nil
end