From 0461d89edb3f8e272697726208ab7747c30a81df Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem.moulin@fripost.org>
Date: Thu, 31 May 2012 18:30:22 +0200
Subject: Catch-All aliases.

---
 fripost-newalias | 63 +++++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 46 insertions(+), 17 deletions(-)

(limited to 'fripost-newalias')

diff --git a/fripost-newalias b/fripost-newalias
index 0ca009b..3fc68f8 100755
--- a/fripost-newalias
+++ b/fripost-newalias
@@ -23,6 +23,33 @@ If I<goto> is not fully qualified, C<fripost.org> is appended.
 If I<from> is already an existing username or alias,
 B<fripost-newalias> raises an error.
 
+Inserted aliases conform to Postfix's B<virtual>(5) alias table format,
+with the restriction that I<from> has to be either in the form:
+
+=over 4
+
+=item .
+
+I<user>@I<domain>, to redirect emails for I<user>@I<domain> to I<goto>, or
+
+=item .
+
+@I<domain>, to catch all emails for users in I<domain> and redirect them
+to I<goto>.
+This form has the lowest precedence: If there is an alias from
+I<user>@I<domain> to I<goto2>, emails to I<user>@I<domain> will be
+redirected to I<goto2> only.
+See B<virtual>(5) for details and warnings.
+
+=back
+
+If serveral entries are matching, for instance if there are an alias from
+I<user>@I<domain> to I<goto> and another for I<user>@I<domain> to
+I<goto2>, emails to I<user>@I<domain> will be redirected to BOTH I<goto>
+and I<goto2>. Note that B<fripost-newalias> forbids the creation of such
+aliases, unless B<--force> is set.
+
+
 =head1 OPTIONS
 
 =over 8
@@ -157,7 +184,7 @@ say "goto adress: $goto";
 
 # Show from adresses
 @addr = grep {
-    if (Email::Valid->address($_)) {
+    if (Email::Valid->address('fake'.$_)) {
         # Warn if the domain is unknown.
         my $domain = (split /\@/, $_, 2)[1];
         if ($ldap->domain->search({ domain => $domain })->count) {
@@ -183,28 +210,30 @@ confirm_or_abort();
 
 ## Insert alias into database
 for my $addr (@addr) {
-    my $rs = $ldap->alias->search({ address => $addr });
-    if (!$rs->count or defined $conf->{force}) {
-        if (!$ldap->user->search({ username => $addr })->count) {
-            if (!$conf->{pretend}) {
-                $ldap->alias->add({ address => $addr, goto => $goto,
-                                    isActive => 'TRUE' });
-                say "New alias added from $addr to $goto.";
-            } else {
-                vsay "Pretending, will not add alias."
-            }
-        }
-        else {
-            die "Error: Username $addr already exists.\n";
-        }
-    }
-    else {
+
+    my ($u,$d) = split /\@/, $addr, 2;
+    my $rs;
+
+    # Ensure that the alias doesn't already exist.
+    $rs = $ldap->alias->search({ address => $addr });
+    if ($rs->count and not (defined $conf->{force})) {
         print STDERR "Error: Alias $addr already exists. ";
         print STDERR "(Targetting to ";
         print STDERR (join ', ', map { $_->{goto} } $rs->entries);
         say STDERR ".)";
         exit 1;
     }
+
+    die "Error: Username $addr exists.\n"
+        if ($ldap->user->search({ username => $addr })->count);
+
+    if (!$conf->{pretend}) {
+        $ldap->alias->add({ address => $addr, goto => $goto,
+                            isActive => 'TRUE' });
+        say "New alias added from $addr to $goto.";
+    } else {
+        vsay "Pretending, will not add alias."
+    }
 }
 
 $ldap->unbind();
-- 
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