8b03ae5701
Sets up a declaratively configured OpenLDAP instance with users alice and bob. They each own one email address, First we test that postfix can communicate with LDAP and do the expected lookups using the defined maps. Then we use doveadm to make sure it can look up the two accounts. Next we check the binding between account and mail address, by logging in as alice and trying to send from bob@example.com, which alice is not allowed to do. We expect postfix to reject the sender address here. Finally we check mail delivery between alice and bob. Alice tries to send a mail from alice@example.com to bob@example.com and bob then checks whether it arrived in their mailbox.
172 lines
4.7 KiB
Nix
172 lines
4.7 KiB
Nix
{ pkgs ? import <nixpkgs> {}
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, ...
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}:
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let
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bindPassword = "unsafegibberish";
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alicePassword = "testalice";
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bobPassword = "testbob";
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in
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pkgs.nixosTest {
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name = "ldap";
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nodes = {
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machine = { config, pkgs, ... }: {
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imports = [
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./../default.nix
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./lib/config.nix
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];
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virtualisation.memorySize = 1024;
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environment.systemPackages = [
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(pkgs.writeScriptBin "mail-check" ''
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${pkgs.python3}/bin/python ${../scripts/mail-check.py} $@
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'')];
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services.openldap = {
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enable = true;
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settings = {
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children = {
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"cn=schema".includes = [
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"${pkgs.openldap}/etc/schema/core.ldif"
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"${pkgs.openldap}/etc/schema/cosine.ldif"
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"${pkgs.openldap}/etc/schema/inetorgperson.ldif"
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"${pkgs.openldap}/etc/schema/nis.ldif"
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];
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"olcDatabase={1}mdb" = {
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attrs = {
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objectClass = [
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"olcDatabaseConfig"
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"olcMdbConfig"
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];
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olcDatabase = "{1}mdb";
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olcDbDirectory = "/var/lib/openldap";
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olcSuffix = "dc=example";
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};
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};
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};
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};
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declarativeContents."dc=example" = ''
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dn: dc=example
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objectClass: domain
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dc: example
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dn: cn=mail,dc=example
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objectClass: organizationalRole
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objectClass: simpleSecurityObject
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objectClass: top
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cn: mail
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userPassword: ${bindPassword}
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dn: ou=users,dc=example
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objectClass: organizationalUnit
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ou: users
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dn: cn=alice,ou=users,dc=example
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objectClass: inetOrgPerson
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cn: alice
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sn: Foo
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mail: alice@example.com
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userPassword: ${alicePassword}
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dn: cn=bob,ou=users,dc=example
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objectClass: inetOrgPerson
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cn: bob
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sn: Bar
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mail: bob@example.com
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userPassword: ${bobPassword}
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'';
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};
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mailserver = {
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enable = true;
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fqdn = "mail.example.com";
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domains = [ "example.com" ];
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localDnsResolver = false;
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ldap = {
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enable = true;
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uris = [
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"ldap://"
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];
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bind = {
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dn = "cn=mail,dc=example";
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password = bindPassword;
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};
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searchBase = "ou=users,dc=example";
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searchScope = "sub";
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};
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vmailGroupName = "vmail";
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vmailUID = 5000;
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enableImap = false;
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};
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};
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};
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testScript = ''
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import sys
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from glob import glob
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machine.start()
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machine.wait_for_unit("multi-user.target")
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def test_lookup(map, key, expected):
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path = glob(f"/nix/store/*-{map}")[0]
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value = machine.succeed(f"postmap -q alice@example.com ldap:{path}").rstrip()
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try:
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assert value == expected
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except AssertionError:
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print(f"Expected {map} lookup for key '{key}' to return '{expected}, but got '{value}'", file=sys.stderr)
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raise
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with subtest("Test postmap lookups"):
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test_lookup("ldap-virtual-mailbox-map.cf", "alice@example.com", "alice")
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test_lookup("ldap-sender-login-map.cf", "alice", "alice")
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test_lookup("ldap-virtual-mailbox-map.cf", "bob@example.com", "alice")
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test_lookup("ldap-sender-login-map.cf", "bob", "alice")
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with subtest("Test doveadm lookups"):
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out = machine.succeed("doveadm user -u alice")
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machine.log(out)
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out = machine.succeed("doveadm user -u bob")
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machine.log(out)
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with subtest("Test account/mail address binding"):
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machine.fail(" ".join([
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"mail-check send-and-read",
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"--smtp-port 587",
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"--smtp-starttls",
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"--smtp-host localhost",
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"--smtp-username alice",
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"--imap-host localhost",
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"--imap-username bob",
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"--from-addr bob@example.com",
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"--to-addr aliceb@example.com",
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"--src-password-file <(echo '${alicePassword}')",
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"--dst-password-file <(echo '${bobPassword}')",
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"--ignore-dkim-spf"
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]))
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machine.succeed("journalctl -u postfix | grep -q 'Sender address rejected: not owned by user alice'")
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with subtest("Test mail delivery"):
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machine.succeed(" ".join([
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"mail-check send-and-read",
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"--smtp-port 587",
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"--smtp-starttls",
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"--smtp-host localhost",
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"--smtp-username alice",
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"--imap-host localhost",
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"--imap-username bob",
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"--from-addr alice@example.com",
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"--to-addr bob@example.com",
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"--src-password-file <(echo '${alicePassword}')",
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"--dst-password-file <(echo '${bobPassword}')",
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"--ignore-dkim-spf"
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]))
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'';
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}
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