From b13e93e2d39a361eff97a4edf5a391535dd5012e Mon Sep 17 00:00:00 2001
From: Ivan Kohler <ivan@freeside.biz>
Date: Mon, 28 Jan 2013 22:50:24 -0800
Subject: [PATCH] username-exclamation, RT#18227

---
 FS/FS/Conf.pm     | 7 +++++++
 FS/FS/svc_acct.pm | 7 ++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/FS/FS/Conf.pm b/FS/FS/Conf.pm
index 3f1e7438b..dc3d69345 100644
--- a/FS/FS/Conf.pm
+++ b/FS/FS/Conf.pm
@@ -5063,6 +5063,13 @@ and customer address. Include units.',
     'type'        => 'checkbox',
   },
 
+  { 
+    'key'         => 'username-exclamation',
+    'section'     => 'username',
+    'description' => 'Allow the exclamation character (!) in usernames.',
+    'type'        => 'checkbox',
+  },
+
   {
     'key'         => 'ie-compatibility_mode',
     'section'     => 'UI',
diff --git a/FS/FS/svc_acct.pm b/FS/FS/svc_acct.pm
index 7ce79ae01..b09c58714 100644
--- a/FS/FS/svc_acct.pm
+++ b/FS/FS/svc_acct.pm
@@ -14,6 +14,7 @@ use vars qw( $DEBUG $me $conf $skip_fuzzyfiles
              $username_noperiod $username_nounderscore $username_nodash
              $username_uppercase $username_percent $username_colon
              $username_slash $username_equals $username_pound
+             $username_exclamation
              $password_noampersand $password_noexclamation
              $warning_template $warning_from $warning_subject $warning_mimetype
              $warning_cc
@@ -84,6 +85,7 @@ FS::UID->install_callback( sub {
   $username_slash = $conf->exists('username-slash');
   $username_equals = $conf->exists('username-equals');
   $username_pound = $conf->exists('username-pound');
+  $username_exclamation = $conf->exists('username-exclamation');
   $password_noampersand = $conf->exists('password-noexclamation');
   $password_noexclamation = $conf->exists('password-noexclamation');
   $dirhash = $conf->config('dirhash') || 0;
@@ -1181,7 +1183,7 @@ sub check {
 
   my $ulen = $usernamemax || $self->dbdef_table->column('username')->length;
 
-  $recref->{username} =~ /^([a-z0-9_\-\.\&\%\:\/\=\#]{$usernamemin,$ulen})$/i
+  $recref->{username} =~ /^([a-z0-9_\-\.\&\%\:\/\=\#\!]{$usernamemin,$ulen})$/i
     or return gettext('illegal_username'). " ($usernamemin-$ulen): ". $recref->{username};
   $recref->{username} = $1;
 
@@ -1222,6 +1224,9 @@ sub check {
   unless ( $username_pound ) {
     $recref->{username} =~ /\#/ and return $uerror;
   }
+  unless ( $username_exclamation ) {
+    $recref->{username} =~ /\!/ and return $uerror;
+  }
 
 
   $recref->{popnum} =~ /^(\d*)$/ or return "Illegal popnum: ".$recref->{popnum};
-- 
2.11.0