use strict;
use warnings;
-our $VERSION = '0.000_001';
+our $VERSION = '0.003';
use parent qw/Plack::Middleware/;
use re '/s';
use Authen::Passphrase;
use Authen::Passphrase::BlowfishCrypt;
-use Bytes::Random::Secure qw/random_bytes/;
-use Carp qw/croak/;
+use Data::Entropy qw/entropy_source/;
+use Data::Entropy::Source;
+use Data::Entropy::RawSource::Local;
+use Carp qw/carp croak/;
use DBI;
use Digest::SHA qw/hmac_sha1_base64 sha256/;
use Email::Simple;
use Plack::Request;
use Tie::Hash::Expire;
+sub make_entropy_source {
+ if (-e '/dev/urandom') {
+ Data::Entropy::Source->new(
+ Data::Entropy::RawSource::Local->new('/dev/urandom'),
+ 'sysread'
+ )
+ } else {
+ carp "/dev/urandom not found, using insecure random source\n";
+ entropy_source
+ }
+}
+
sub default_opts {(
dbi_connect => ['dbi:Pg:', '', ''],
select_user => 'SELECT passphrase, email FROM users WHERE id = ?',
cache_max_age => 5 * 60,
token_max_age => 60 * 60,
username_regex => qr/^\w{2,20}$/as,
+ invalid_username => 'Invalid username',
register_url => '/action/register',
passwd_url => '/action/passwd',
request_reset_url => '/action/request-reset',
my ($class, $opts) = @_;
my %self = $class->default_opts;
%self = (%self, %$opts);
+ $self{entropy_source} //= make_entropy_source;
+ # If the user did not set [use_scrypt], we set it to 1 if scrypt
+ # is available and to 0 otherwise.
+ # If the user set [use_scrypt] to 1, we try to load scrypt and
+ # croak if we fail to do so.
+ unless (exists $self{use_scrypt}) {
+ my $success = eval 'use Authen::Passphrase::Scrypt';
+ $self{use_scrypt} = !!$success
+ }
+ if ($self{use_scrypt}) {
+ eval 'use Authen::Passphrase::Scrypt; 1' or croak "Failed to load Authen::Passphrase::Scrypt: $@\n";
+ }
my $self = bless \%self, $class;
- $self->init;
$self
}
return $self->{cache}{$cachekey} if exists $self->{cache}{$cachekey}; # uncoverable branch true
my $user = $self->get_user($username);
return 0 unless $user;
- my $ret = Authen::Passphrase->from_rfc2307($user->{passphrase})->match($passphrase);
+ my $ret;
+ if ($user->{passphrase} =~ /^{SCRYPT}/) {
+ croak "$username has a scrypt password but use_scrypt is false\n" unless $self->{use_scrypt};
+ $ret = Authen::Passphrase::Scrypt->from_rfc2307($user->{passphrase})
+ } else {
+ $ret = Authen::Passphrase->from_rfc2307($user->{passphrase});
+ }
+ $ret = $ret->match($passphrase);
$self->{cache}{$cachekey} = $ret if $ret || $self->{cache_fail};
$ret
}
sub hash_passphrase {
my ($self, $passphrase) = @_;
- Authen::Passphrase::BlowfishCrypt->new(
- cost => 10,
- passphrase => $passphrase,
- salt_random => 1,
- )->as_rfc2307
+ if ($self->{use_scrypt}) {
+ Authen::Passphrase::Scrypt->new({
+ passphrase => $passphrase,
+ })->as_rfc2307
+ } else {
+ Authen::Passphrase::BlowfishCrypt->new(
+ cost => 10,
+ passphrase => $passphrase,
+ salt_random => 1,
+ )->as_rfc2307
+ }
}
sub set_passphrase {
sub make_reset_hmac {
my ($self, $username, @data) = @_;
- $self->{hmackey} //= random_bytes 512; # uncoverable condition false
+ $self->{hmackey} //= $self->{entropy_source}->get_bits(8 * 512); # uncoverable condition false
my $user = $self->get_user($username);
my $message = join ' ', $username, $user->{passphrase}, @data;
hmac_sha1_base64 $message, $self->{hmackey};
return $self->bad_request("Missing parameter $_") unless $parms{$_};
}
- return $self->bad_request('Username must match ' . $self->{username_regex}) unless $parms{username} =~ $self->{username_regex};
+ return $self->bad_request($self->{invalid_username}) unless $parms{username} =~ $self->{username_regex};
return $self->bad_request('Username already in use') if $self->get_user($parms{username});
return $self->bad_request('The two passwords do not match') unless $parms{password} eq $parms{confirm_password};
sub call {
my ($self, $env) = @_;
+
+ unless ($self->{init_done}) {
+ $self->init;
+ $self->{init_done} = 1;
+ }
+
my $auth = $env->{HTTP_AUTHORIZATION};
if ($auth && $auth =~ /^Basic (.*)$/i) {
my ($user, $pass) = split /:/, decode_base64($1), 2;
Arrayref of arguments to pass to DBI->connect. Defaults to
C<['dbi:Pg', '', '']>.
+=item entropy_source
+
+C<Data::Entropy::Source> object to get random numbers from. By default
+uses F</dev/urandom> via C<Data::Entropy::RawSource::Local> if
+possible, or the default entropy source otherwise. A warning is
+printed if the default entropy source is used, to supress it set this
+argument to the default entropy source.
+
+=item use_scrypt
+
+Boolean determining whether to use the scrypt algorithm via the
+C<Authen::Passphrase::Scrypt> module.
+
+If true, the default implementation of C<hash_passphrase> uses scrypt
+and C<check_passphrase> accepts scrypt passphrases (in addition to
+passphrases supported by C<Authen::Passphrase>).
+
+If false, the default implementation of C<hash_passphrase> uses bcrypt
+and C<check_passphrase> only accepts passphrases supported by
+C<Authen::Passphrase>.
+
+The default value is true if C<Authen::Passphrase::Scrypt> is
+installed, false otherwise.
+
=item post_connect_cb
Callback (coderef) that is called just after connecting to the
Regular expression that matches valid usernames. Defaults to
C<qr/^\w{2,20}$/as>.
+=item invalid_username
+
+Error message returned when the username does not match
+username_regex. Defaults to C<'Invalid username'>
+
=item register_url
URL for registering. Defaults to C<'/action/register'>.
=item B<init>
-Called at the end of the constructor. The default implementation
+Called when the first request is received. The default implementation
connects to the database, calls C<post_connect_cb> and prepares the
SQL statements.
=item B<check_passphrase>(I<$username>, I<$passphrase>)
Returns true if the given plaintext passphrase matches the one
-obtained from database. Default implementation uses L<Authen::Passphrase>.
+obtained from database. Default implementation uses
+L<Authen::Passphrase> (and L<Authen::Passphrase::Scrypt> if
+C<use_scrypt> is true).
=item B<hash_passphrase>(I<$passphrase>)
-Returns a RFC2307-formatted hash of the passphrase. Default
-implementation uses L<Authen::Passphrase::BlowfishCrypt> with a cost
-of 10 and a random salt.
+Returns a RFC2307-formatted hash of the passphrase.
+
+If C<use_scrypt> is true, default implementation uses
+L<Authen::Passphrase::Scrypt> with default parameters.
+
+If C<use_scrypt> is false, default implementation uses
+L<Authen::Passphrase::BlowfishCrypt> with a cost of 10 and a random
+salt.
=item B<set_passphrase>(I<$username>, I<$passphrase>)
=item B<call_register>(I<$req>)
-Handles the C</register> endpoint. I<$req> is a Plack::Request object.
+Handles the C</action/register> endpoint. I<$req> is a Plack::Request object.
=item B<call_passwd>(I<$req>)
-Handles the C</passwd> endpoint. I<$req> is a Plack::Request object.
+Handles the C</action/passwd> endpoint. I<$req> is a Plack::Request object.
=item B<call_request_reset>(I<$req>)
-Handles the C</request-reset> endpoint. I<$req> is a Plack::Request object.
+Handles the C</action/request-reset> endpoint. I<$req> is a Plack::Request object.
=item B<call_reset>(I<$req>)
-Handles the C</reset> endpoint. I<$req> is a Plack::Request object.
+Handles the C</action/reset> endpoint. I<$req> is a Plack::Request object.
=back
=head1 COPYRIGHT AND LICENSE
-Copyright (C) 2015 by Marius Gavrilescu
+Copyright (C) 2015-2017 by Marius Gavrilescu
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.20.1 or,
projects / plack-middleware-auth-complex.git / blobdiff