mirror of
https://akkoma.dev/AkkomaGang/akkoma.git
synced 2024-11-30 17:11:40 +00:00
144 lines
4 KiB
Elixir
144 lines
4 KiB
Elixir
# Pleroma: A lightweight social networking server
|
|
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
defmodule Pleroma.Web.Auth.LDAPAuthenticator do
|
|
alias Pleroma.User
|
|
|
|
require Logger
|
|
|
|
@behaviour Pleroma.Web.Auth.Authenticator
|
|
|
|
@connection_timeout 10_000
|
|
@search_timeout 10_000
|
|
|
|
def get_user(%Plug.Conn{} = conn) do
|
|
if Pleroma.Config.get([:ldap, :enabled]) do
|
|
{name, password} =
|
|
case conn.params do
|
|
%{"authorization" => %{"name" => name, "password" => password}} ->
|
|
{name, password}
|
|
|
|
%{"grant_type" => "password", "username" => name, "password" => password} ->
|
|
{name, password}
|
|
end
|
|
|
|
case ldap_user(name, password) do
|
|
%User{} = user ->
|
|
{:ok, user}
|
|
|
|
{:error, {:ldap_connection_error, _}} ->
|
|
# When LDAP is unavailable, try default authenticator
|
|
Pleroma.Web.Auth.PleromaAuthenticator.get_user(conn)
|
|
|
|
error ->
|
|
error
|
|
end
|
|
else
|
|
# Fall back to default authenticator
|
|
Pleroma.Web.Auth.PleromaAuthenticator.get_user(conn)
|
|
end
|
|
end
|
|
|
|
def handle_error(%Plug.Conn{} = _conn, error) do
|
|
error
|
|
end
|
|
|
|
def auth_template, do: nil
|
|
|
|
defp ldap_user(name, password) do
|
|
ldap = Pleroma.Config.get(:ldap, [])
|
|
host = Keyword.get(ldap, :host, "localhost")
|
|
port = Keyword.get(ldap, :port, 389)
|
|
ssl = Keyword.get(ldap, :ssl, false)
|
|
sslopts = Keyword.get(ldap, :sslopts, [])
|
|
|
|
options =
|
|
[{:port, port}, {:ssl, ssl}, {:timeout, @connection_timeout}] ++
|
|
if sslopts != [], do: [{:sslopts, sslopts}], else: []
|
|
|
|
case :eldap.open([to_charlist(host)], options) do
|
|
{:ok, connection} ->
|
|
try do
|
|
if Keyword.get(ldap, :tls, false) do
|
|
:application.ensure_all_started(:ssl)
|
|
|
|
case :eldap.start_tls(
|
|
connection,
|
|
Keyword.get(ldap, :tlsopts, []),
|
|
@connection_timeout
|
|
) do
|
|
:ok ->
|
|
:ok
|
|
|
|
error ->
|
|
Logger.error("Could not start TLS: #{inspect(error)}")
|
|
end
|
|
end
|
|
|
|
bind_user(connection, ldap, name, password)
|
|
after
|
|
:eldap.close(connection)
|
|
end
|
|
|
|
{:error, error} ->
|
|
Logger.error("Could not open LDAP connection: #{inspect(error)}")
|
|
{:error, {:ldap_connection_error, error}}
|
|
end
|
|
end
|
|
|
|
defp bind_user(connection, ldap, name, password) do
|
|
uid = Keyword.get(ldap, :uid, "cn")
|
|
base = Keyword.get(ldap, :base)
|
|
|
|
case :eldap.simple_bind(connection, "#{uid}=#{name},#{base}", password) do
|
|
:ok ->
|
|
case User.get_by_nickname_or_email(name) do
|
|
%User{} = user ->
|
|
user
|
|
|
|
_ ->
|
|
register_user(connection, base, uid, name, password)
|
|
end
|
|
|
|
error ->
|
|
error
|
|
end
|
|
end
|
|
|
|
defp register_user(connection, base, uid, name, password) do
|
|
case :eldap.search(connection, [
|
|
{:base, to_charlist(base)},
|
|
{:filter, :eldap.equalityMatch(to_charlist(uid), to_charlist(name))},
|
|
{:scope, :eldap.wholeSubtree()},
|
|
{:attributes, ['mail', 'email']},
|
|
{:timeout, @search_timeout}
|
|
]) do
|
|
{:ok, {:eldap_search_result, [{:eldap_entry, _, attributes}], _}} ->
|
|
with {_, [mail]} <- List.keyfind(attributes, 'mail', 0) do
|
|
params = %{
|
|
email: :erlang.list_to_binary(mail),
|
|
name: name,
|
|
nickname: name,
|
|
password: password,
|
|
password_confirmation: password
|
|
}
|
|
|
|
changeset = User.register_changeset(%User{}, params)
|
|
|
|
case User.register(changeset) do
|
|
{:ok, user} -> user
|
|
error -> error
|
|
end
|
|
else
|
|
_ ->
|
|
Logger.error("Could not find LDAP attribute mail: #{inspect(attributes)}")
|
|
{:error, :ldap_registration_missing_attributes}
|
|
end
|
|
|
|
error ->
|
|
error
|
|
end
|
|
end
|
|
end
|