ed8eca0a63
Apparently the format of vpopmaild responses has been expanded and the responses are conditional. * Replaced the 'sometimes works' eq comparison with a regexp that always works. * added tests for all 3 vpopmail plugins * added cram-md5 auth support to auth_vpopmaild.
118 lines
3.4 KiB
Perl
118 lines
3.4 KiB
Perl
#!/usr/bin/perl -w
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use strict;
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=head1 NAME
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auth_vpopmail - Authenticate against libvpopmail.a
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=head1 DESCRIPTION
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This plugin authenticates vpopmail users using p5-vpopmail.
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Using CRAM-MD5 requires that vpopmail be built with the
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'--enable-clear-passwd=y' option.
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=head1 CONFIGURATION
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This module will only work if qpsmtpd is running as the 'vpopmail' user.
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CRAM-MD5 authentication will only work with p5-vpopmail 0.09 or higher.
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http://github.com/sscanlon/vpopmail
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Decide which authentication methods you are willing to support and uncomment
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the lines in the register() sub. See the POD for Qspmtpd::Auth for more
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details on the ramifications of supporting various authentication methods.
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=head1 SEE ALSO
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For an overview of the vpopmail authentication plugins and their merits,
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please read the VPOPMAIL section in docs/authentication.pod
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=head1 AUTHOR
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Matt Simerson <msimerson@cpan.org>
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=head1 COPYRIGHT AND LICENSE
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Copyright (c) 2010 Matt Simerson
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This plugin is licensed under the same terms as the qpsmtpd package itself.
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Please see the LICENSE file included with qpsmtpd for details.
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=cut
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sub register {
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my ($self, $qp) = @_;
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$self->register_hook("auth-plain", "auth_vpopmail" );
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$self->register_hook("auth-login", "auth_vpopmail" );
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$self->register_hook("auth-cram-md5", "auth_vpopmail");
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}
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sub auth_vpopmail {
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use vpopmail;
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use Qpsmtpd::Constants;
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use Digest::HMAC_MD5 qw(hmac_md5_hex);
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my ($self, $transaction, $method, $user, $passClear, $passHash, $ticket) =
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@_;
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my ($pw_name, $pw_domain) = split "@", lc($user);
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$self->log(LOGINFO, "Authenticating against vpopmail: $user");
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return (DECLINED, "authvpopmail/$method - plugin not configured correctly")
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if !test_vpopmail();
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my $pw = vauth_getpw($pw_name, $pw_domain);
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my $pw_clear_passwd = $pw->{pw_clear_passwd};
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my $pw_passwd = $pw->{pw_passwd};
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# make sure the user exists
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if (!$pw || (!$pw_clear_passwd && !$pw_passwd)) {
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return (DENY, "authvpopmail/$method - invalid user");
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# change DENY to DECLINED to support multiple auth plugins
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}
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return (OK, "authvpopmail/$method")
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if $pw_passwd eq crypt($passClear, $pw_passwd);
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# simplest case: clear text passwords
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if (defined $passClear && defined $pw_clear_passwd) {
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return (DENY, "authvpopmail/$method - incorrect password")
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if $passClear ne $pw_clear_passwd;
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return (OK, "authvpopmail/$method");
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}
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if ($method =~ /CRAM-MD5/i) {
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# clear_passwd isn't defined so we cannot support CRAM-MD5
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return (DECLINED, "authvpopmail/$method") if !defined $pw_clear_passwd;
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if (defined $passHash
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and $passHash eq hmac_md5_hex($ticket, $pw_clear_passwd))
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{
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}
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}
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return (OK, "authvpopmail/$method")
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if (defined $passHash
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&& $passHash eq hmac_md5_hex($ticket, $pw_clear_passwd));
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return (DENY, "authvpopmail/$method - unknown error");
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}
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sub test_vpopmail {
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# vpopmail will not allow vauth_getpw to succeed unless the requesting user is vpopmail or root.
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# by default, qpsmtpd runs as the user 'qpsmtpd' and does not have permission.
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eval "use vpopmail";
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if ( $@ ) {
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warn "vpopmail perl module not installed.\n";
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return;
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};
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my ($domain) = vpopmail::vlistdomains();
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my $r = vauth_getpw('postmaster', $domain);
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return if !$r;
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return 1;
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}
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