passwordauth: Fix url in password recovery email to be absolute.

This got broken when cgiurl began often returning a relative url.
Added a cgiurl_abs for the things that need a guaranteed absolute cgiurl.

IkiWiki.pm

@@ -1092,6 +1092,11 @@ sub cgiurl (@) {
 		join("&", map $_."=".uri_escape_utf8($params{$_}), keys %params);
 }
 
+sub cgiurl_abs (@) {
+	eval q{use URI};
+	URI->new_abs(cgiurl(@_), $config{cgiurl});
+}
+
 sub baseurl (;$) {
 	my $page=shift;
 

IkiWiki/Plugin/notifyemail.pm

@@ -127,7 +127,7 @@ sub notify (@) {
 			$template->param(
 				wikiname => $config{wikiname},
 				url => $url,
-				prefsurl => $config{cgiurl}."?do=prefs",
+				prefsurl => IkiWiki::cgiurl_abs(do => 'prefs'),
 				showcontent => $showcontent,
 				content => $content,
 			);

IkiWiki/Plugin/passwordauth.pm

@@ -296,7 +296,7 @@ sub formbuilder (@) {
 				my $template=template("passwordmail.tmpl");
 				$template->param(
 					user_name => $user_name,
-					passwordurl => IkiWiki::cgiurl(
+					passwordurl => IkiWiki::cgiurl_abs(
 						'do' => "reset",
 						'name' => $user_name,
 						'token' => $token,

debian/changelog

@@ -11,6 +11,7 @@ ikiwiki (3.20120204) UNRELEASED; urgency=low
     the old hook name is called for now for back-compat.
   * meta: Support keywords header. Closes: #664780
     Thanks, Martin Michlmayr
+  * passwordauth: Fix url in password recovery email to be absolute.
 
  -- Joey Hess <joeyh@debian.org>  Wed, 21 Mar 2012 14:33:14 -0400