distraction.party/lib/pleroma/web/auth/pleroma_authenticator.ex

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2019-02-26 13:26:54 +00:00
# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.Auth.PleromaAuthenticator do
alias Pleroma.Registration
alias Pleroma.Repo
alias Pleroma.User
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alias Pleroma.Web.Plugs.AuthenticationPlug
import Pleroma.Web.Auth.Helpers, only: [fetch_credentials: 1, fetch_user: 1]
@behaviour Pleroma.Web.Auth.Authenticator
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, _reason} = error -> error
error -> {:error, error}
end
end
@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
{:ok, registration}
else
info = auth.info
%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_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,
confirmed: true
)
|> 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