Expand banned_users; it can now include PageSpecs, which allows banning by IP address.

IkiWiki/CGI.pm

@@ -252,16 +252,30 @@ sub check_banned ($$) {
 	my $q=shift;
 	my $session=shift;
 
+	my $banned=0;
 	my $name=$session->param("name");
-	if (defined $name) {
-		if (grep { $name eq $_ } @{$config{banned_users}}) {
-			$session->delete();
-			cgi_savesession($session);
-			cgi_custom_failure(
-				$q->header(-status => "403 Forbidden"),
-				gettext("You are banned."));
+	if (defined $name && 
+	    grep { $name eq $_ } @{$config{banned_users}}) {
+		$banned=1;
+	}
+
+	foreach my $b (@{$config{banned_users}}) {
+		if (pagespec_match("", $b,
+			ip => $ENV{REMOTE_ADDR},
+			name => defined $name ? $name : "",
+		)) {
+			$banned=1;
+			last;
 		}
 	}
+
+	if ($banned) {
+		$session->delete();
+		cgi_savesession($session);
+		cgi_custom_failure(
+			$q->header(-status => "403 Forbidden"),
+			gettext("You are banned."));
+	}
 }
 
 sub cgi_getsession ($) {

debian/changelog

@@ -2,6 +2,8 @@ ikiwiki (3.14159265) UNRELEASED; urgency=low
 
   * Add French basewiki translation from the Debian French l10n team,
     including Philippe Batailler, Alexandre Dupas, and Steve Petruzzello.
+  * Expand banned_users; it can now include PageSpecs, which
+    allows banning by IP address.
 
  -- Joey Hess <joeyh@debian.org>  Wed, 02 Sep 2009 15:01:27 -0400
 

doc/banned_users.mdwn

@@ -1,4 +1,10 @@
-Banned users can be configured in the setup file.
+Banned users can be configured in the setup file via the `banned_users`
+setting. This is a list of user names, or [[PageSpecs|ikiwiki/PageSpec]]
+to ban. Using a PageSpec is useful to block an IP address.
+
+For example:
+
+	banned_users => ['evilspammer', 'ip(192.168.1.1)'],
 
 If a banned user attempts to use the ikiwiki CGI, they will receive a 403
 Forbidden webpage indicating they are banned.

doc/todo/blocking_ip_ranges.mdwn

@@ -2,3 +2,6 @@ Admins need the ability to block IP ranges. They can already ban users.
 
 See [[fileupload]] for a propsal that grew to encompass the potential to do
 this.
+
+[[done]] (well, there is no pagespec for IP ranges yet, but we can block
+individual IPs)