Commit e278d470 authored by link0ff's avatar link0ff

OpenLDAP support

parent 5a4e2905
......@@ -344,6 +344,15 @@ config :pleroma, Pleroma.Jobs,
federator_outgoing: [max_jobs: 50],
mailer: [max_jobs: 10]
config :pleroma, :ldap,
enabled: System.get_env("LDAP_ENABLED") == "true",
host: System.get_env("LDAP_HOST") || "localhost",
port: String.to_integer(System.get_env("LDAP_PORT") || "389"),
ssl: System.get_env("LDAP_SSL") == "true",
sslopts: [],
base: System.get_env("LDAP_BASE") || "dc=example,dc=com",
uid: System.get_env("LDAP_UID") || "cn"
# Import environment specific config. This must remain at the bottom
# of this file so it overrides the configuration defined above.
import_config "#{Mix.env()}.exs"
......@@ -301,3 +301,12 @@ For each pool, the options are:
* `max_connections` - how much connections a pool can hold
* `timeout` - retention duration for connections
## :ldap
* `enabled`: enables LDAP authentication
* `host`: LDAP server hostname
* `port`: LDAP port, e.g. 389 or 636
* `ssl`: true to use SSL
* `sslopts`: additional SSL options
* `base`: LDAP base, e.g. "dc=example,dc=com"
* `uid`: attribute type to authenticate the user, e.g. when "cn", the filter will be "cn=username,base"
# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.LDAP do
alias Pleroma.User
require Logger
@connection_timeout 10_000
@search_timeout 10_000
def get_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
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
after
:eldap.close(connection)
end
{:error, error} ->
Logger.error("Could not open LDAP connection: #{inspect(error)}")
{:error, {:ldap_connection_error, error}}
end
end
def 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()},
{: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
_ -> {:error, :ldap_registration_missing_attributes}
end
error ->
error
end
end
end
......@@ -130,8 +130,7 @@ defmodule Pleroma.Web.OAuth.OAuthController do
%{"grant_type" => "password", "username" => name, "password" => password} = params
) do
with %App{} = app <- get_app_from_request(conn, params),
%User{} = user <- User.get_by_nickname_or_email(name),
true <- Pbkdf2.checkpw(password, user.password_hash),
%User{} = user <- get_user(name, password),
{:auth_active, true} <- {:auth_active, User.auth_active?(user)},
scopes <- oauth_scopes(params, app.scopes),
[] <- scopes -- app.scopes,
......@@ -215,4 +214,28 @@ defmodule Pleroma.Web.OAuth.OAuthController do
nil
end
end
defp get_user(name, password) do
if Pleroma.Config.get([:ldap, :enabled]) do
case Pleroma.LDAP.get_user(name, password) do
%User{} = user ->
user
{:error, {:ldap_connection_error, _}} ->
# When LDAP is unavailable, try default login
with %User{} = user <- User.get_by_nickname_or_email(name),
true <- Pbkdf2.checkpw(password, user.password_hash) do
user
end
error ->
error
end
else
with %User{} = user <- User.get_by_nickname_or_email(name),
true <- Pbkdf2.checkpw(password, user.password_hash) do
user
end
end
end
end
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