1 package FS::Password_Mixin;
3 use FS::Record qw(qsearch);
5 use FS::password_history;
6 use Authen::Passphrase;
7 use Authen::Passphrase::BlowfishCrypt;
8 # https://rt.cpan.org/Ticket/Display.html?id=72743
9 use Data::Password qw(:all);
13 FS::UID->install_callback( sub {
14 $conf = FS::Conf->new;
17 our $me = '[' . __PACKAGE__ . ']';
19 our $BLOWFISH_COST = 10;
23 FS::Password_Mixin - Object methods for accounts that have passwords governed
24 by the password policy.
30 =item is_password_allowed PASSWORD
32 Checks the password against the system password policy. Returns an error
33 message on failure, an empty string on success.
35 This MUST NOT be called from check(). It should be called by the office UI,
36 self-service ClientAPI, or other I<user-interactive> code that processes a
37 password change, and only if the user has taken some action with the intent
38 of setting the password.
42 sub is_password_allowed {
46 my $cust_main = $self->cust_main;
48 # workaround for non-inserted services
49 if ( !$cust_main and $self->get('pkgnum') ) {
50 my $cust_pkg = FS::cust_pkg->by_key($self->get('pkgnum'));
51 $cust_main = $cust_pkg->cust_main if $cust_pkg;
53 warn "is_password_allowed: no customer could be identified" if !$cust_main;
54 return '' if $cust_main && $conf->config_bool('password-insecure', $cust_main->agentnum);
56 # basic checks using Data::Password;
57 # options for Data::Password
58 $DICTIONARY = 4; # minimum length of disallowed words
59 $MINLEN = $conf->config('passwordmin') || 6;
60 $MAXLEN = $conf->config('passwordmax') || 12;
61 $GROUPS = 4; # must have all 4 'character groups': numbers, symbols, uppercase, lowercase
62 # other options use the defaults listed below:
63 # $FOLLOWING = 3; # disallows more than 3 chars in a row, by alphabet or keyboard (ie abcd or asdf)
64 # $SKIPCHAR = undef; # set to true to skip checking for bad characters
65 # # lists of disallowed words
66 # @DICTIONARIES = qw( /usr/share/dict/web2 /usr/share/dict/words /usr/share/dict/linux.words );
68 my $error = IsBadPassword($password);
69 $error = 'must contain at least one each of numbers, symbols, and lowercase and uppercase letters'
70 if $error eq 'contains less than 4 character groups'; # avoid confusion
71 $error = 'Invalid password - ' . $error if $error;
72 return $error if $error;
74 #check against service fields
75 $error = $self->password_svc_check($password);
76 return $error if $error;
78 return '' unless $self->get($self->primary_key); # for validating new passwords pre-insert
80 #check against customer fields
81 my $cust_main = $self->cust_main;
84 # words from cust_main
85 foreach my $field ( qw( last first daytime night fax mobile ) ) {
86 push @words, split(/\W/,$cust_main->get($field));
88 # words from cust_location
89 foreach my $loc ($cust_main->cust_location) {
90 foreach my $field ( qw(address1 address2 city county state zip) ) {
91 push @words, split(/\W/,$loc->get($field));
94 # words from cust_contact & contact_phone
95 foreach my $contact (map { $_->contact } $cust_main->cust_contact) {
96 foreach my $field ( qw(last first) ) {
97 push @words, split(/\W/,$contact->get($field));
99 # not hugely useful right now, hyphenless stored values longer than password max,
100 # but max will probably be increased eventually...
101 foreach my $phone ( qsearch('contact_phone', {'contactnum' => $contact->contactnum}) ) {
102 push @words, split(/\W/,$phone->get('phonenum'));
105 # do the actual checking
106 foreach my $word (@words) {
107 next unless length($word) > 2;
108 if ($password =~ /$word/i) {
109 return qq(Password contains account information '$word');
115 # allow override here if we really must
117 if ( $no_reuse > 0 ) {
119 # "the last N" passwords includes the current password and the N-1
120 # passwords before that.
121 warn "$me checking password reuse limit of $no_reuse\n" if $DEBUG;
122 my @latest = qsearch({
123 'table' => 'password_history',
124 'hashref' => { $self->password_history_key => $self->get($self->primary_key) },
125 'order_by' => " ORDER BY created DESC LIMIT $no_reuse",
128 # don't check the first one; reusing the current password is allowed.
131 foreach my $history (@latest) {
132 warn "$me previous password created ".$history->created."\n" if $DEBUG;
133 if ( $history->password_equals($password) ) {
135 if ( $no_reuse == 1 ) {
136 $message = "This password is the same as your previous password.";
138 $message = "This password was one of the last $no_reuse passwords on this account.";
144 } # end of no_reuse checking
149 =item password_svc_check
151 Override to run additional service-specific password checks.
155 sub password_svc_check {
156 my ($self, $password) = @_;
160 =item password_history_key
162 Returns the name of the field in L<FS::password_history> that's the foreign
167 sub password_history_key {
169 $self->table . '__' . $self->primary_key;
172 =item insert_password_history
174 Creates a L<FS::password_history> record linked to this object, with its
179 sub insert_password_history {
181 my $encoding = $self->_password_encoding;
182 my $password = $self->_password;
185 if ( $encoding eq 'bcrypt' ) {
186 # our format, used for contact and access_user passwords
187 my ($cost, $salt, $hash) = split(',', $password);
188 $auth = Authen::Passphrase::BlowfishCrypt->new(
190 salt_base64 => $salt,
191 hash_base64 => $hash,
194 } elsif ( $encoding eq 'crypt' ) {
196 # it's smart enough to figure this out
197 $auth = Authen::Passphrase->from_crypt($password);
199 } elsif ( $encoding eq 'ldap' ) {
201 $password =~ s/^{PLAIN}/{CLEARTEXT}/i; # normalize
202 $auth = Authen::Passphrase->from_rfc2307($password);
203 if ( $auth->isa('Authen::Passphrase::Clear') ) {
204 # then we've been given the password in cleartext
205 $auth = $self->_blowfishcrypt( $auth->passphrase );
209 warn "unrecognized password encoding '$encoding'; treating as plain text"
210 unless $encoding eq 'plain';
212 $auth = $self->_blowfishcrypt( $password );
216 my $password_history = FS::password_history->new({
217 _password => $auth->as_rfc2307,
219 $self->password_history_key => $self->get($self->primary_key),
222 my $error = $password_history->insert;
223 return "recording password history: $error" if $error;
228 =item _blowfishcrypt PASSWORD
230 For internal use: takes PASSWORD and returns a new
231 L<Authen::Passphrase::BlowfishCrypt> object representing it.
237 my $passphrase = shift;
238 return Authen::Passphrase::BlowfishCrypt->new(
239 cost => $BLOWFISH_COST,
241 passphrase => $passphrase,
249 L<FS::password_history>