hydra/t/lib/LDAPContext.pm
2022-02-10 09:28:53 -05:00

238 lines
5.5 KiB
Perl

use strict;
use warnings;
package LDAPContext;
use POSIX qw(SIGKILL);
use File::Path qw(make_path);
use WWW::Form::UrlEncoded::PP qw();
use Hydra::Helper::Exec;
# Set up an LDAP server to run during the test.
#
# It creates a top level organization and structure, and provides
# add_user and add_group.
#
# The server is automatically terminated when the class is dropped.
sub new {
my ($class) = @_;
my $root = File::Temp->newdir();
mkdir $root;
my $pid_file = "$root/slapd.pid";
my $slapd_dir = "$root/slap.d";
mkdir $slapd_dir;
my $db_dir = "$root/db";
mkdir $db_dir;
my $socket = "$root/slapd.socket";
my $self = {
_tmpdir => $root,
_db_dir => $db_dir,
_openldap_source => $ENV{"OPENLDAP_ROOT"},
_pid_file => $pid_file,
_slapd_dir => $slapd_dir,
_socket => $socket,
};
my $blessed = bless $self, $class;
$blessed->start();
return $blessed;
}
# Create a user with a specific email address and password
#
# Hash Parameters:
#
# * password: The clear text password, will be hashed when stored in the DB.
# * email: The user's email address. Defaults to $name@example.net
#
# Return: a hash of parameters for the user
#
# * username: The user's provided $name
# * password: The plaintext password, generated if not provided in the arguments
# * hashed_password: The hashed password
# * email: Their email address
sub add_user {
my ($self, $name, %opts) = @_;
my $email = $opts{'email'} // "$name\@example";
my $password = $opts{'password'} // rand_chars();
my ($res, $stdout, $stderr) = captureStdoutStderr(1, ("slappasswd", "-s", $password));
if ($res) {
die "Failed to execute slappasswd ($res): $stderr, $stdout";
}
my $hashedPassword = $stdout;
$hashedPassword =~ s/^\s+|\s+$//g; # Trim whitespace
$self->load_ldif("dc=example", <<LDIF);
dn: cn=$name,ou=users,dc=example
objectClass: organizationalPerson
objectClass: inetOrgPerson
sn: $name
cn: $name
mail: $email
userPassword: $hashedPassword
LDIF
return {
username => $name,
email => $email,
password => $password,
hashed_password => $hashedPassword,
};
}
# Create a group with a specific name and members
sub add_group {
my ($self, $name, @users) = @_;
my $members = join "\n", (map "member: cn=$_,ou=users,dc=example", @users);
$self->load_ldif("dc=example", <<LDIF);
dn: cn=$name,ou=groups,dc=example
cn: $name
description: User group $name
objectClass: groupOfNames
$members
LDIF
}
sub _makeBootstrapConfig {
my ($self) = @_;
# This has been copied from the generated config used by the
# ldap test in the flake.nix.
return <<EOF;
dn: cn=config
cn: config
objectClass: olcGlobal
olcPidFile: ${\$self->{"_pid_file"}}
dn: cn=schema,cn=config
cn: schema
objectClass: olcSchemaConfig
include: file://${\$self->{"_openldap_source"}}/etc/schema/core.ldif
include: file://${\$self->{"_openldap_source"}}/etc/schema/cosine.ldif
include: file://${\$self->{"_openldap_source"}}/etc/schema/inetorgperson.ldif
include: file://${\$self->{"_openldap_source"}}/etc/schema/nis.ldif
dn: olcDatabase={1}mdb,cn=config
objectClass: olcDatabaseConfig
objectClass: olcMdbConfig
olcDatabase: {1}mdb
olcDbDirectory: ${\$self->{"_db_dir"}}
olcRootDN: cn=root,dc=example
olcRootPW: notapassword
olcSuffix: dc=example
EOF
}
sub _makeBootstrapOrganization {
my ($self) = @_;
# This has been copied from the generated config used by the
# ldap test in the flake.nix.
return <<EOF;
dn: dc=example
dc: example
o: Root
objectClass: top
objectClass: dcObject
objectClass: organization
dn: ou=users,dc=example
ou: users
description: All users
objectClass: top
objectClass: organizationalUnit
dn: ou=groups,dc=example
ou: groups
description: All groups
objectClass: top
objectClass: organizationalUnit
EOF
}
sub start {
my ($self) = @_;
$self->load_ldif("cn=config", $self->_makeBootstrapConfig());
$self->load_ldif("dc=example", $self->_makeBootstrapOrganization());
$self->_spawn()
}
sub validateConfig {
my ($self) = @_;
expectOkay(1, ("slaptest", "-u", "-F", $self->{"_slapd_dir"}));
}
sub _spawn {
my ($self) = @_;
my $pid = fork;
die "When starting the LDAP server:failed to fork." if not defined $pid;
if ($pid == 0) {
exec("${\$self->{'_openldap_source'}}/libexec/slapd",
# A debug flag `-d` must be specified to avoid backgrounding, and an empty
# argument means no additional debugging.
"-d", "",
# "-d", "conns", "-d", "filter", "-d", "config",
"-F", $self->{"_slapd_dir"}, "-h", $self->server_url()) or die "Could not start slapd";
} else {
$self->{"_pid"} = $pid;
}
}
sub server_url {
my ($self) = @_;
my $encoded_socket_path = WWW::Form::UrlEncoded::PP::url_encode($self->{"_socket"});
return "ldapi://$encoded_socket_path";
}
sub tmpdir {
my ($self) = @_;
return $self->{"_tmpdir"};
}
sub load_ldif {
my ($self, $suffix, $content) = @_;
my $path = "${\$self->{'_tmpdir'}}/load.ldif";
write_file($path, $content);
expectOkay(1, ("slapadd", "-F", $self->{"_slapd_dir"}, "-b", $suffix, "-l", $path));
$self->validateConfig();
}
sub DESTROY
{
my ($self) = @_;
if ($self->{"_pid"}) {
kill SIGKILL, $self->{"_pid"};
}
}
sub write_file {
my ($path, $text) = @_;
open(my $fh, '>', $path) or die "Could not open file '$path' $!";
print $fh $text || "";
close $fh;
}
sub rand_chars {
return sprintf("t%08X", rand(0xFFFFFFFF));
}
1;