Merge branch 'bugs'

[ikiwiki.git] / IkiWiki / CGI.pm

diff --git a/IkiWiki/CGI.pm b/IkiWiki/CGI.pm
index 99cead64fcbbf5461820720c415f5eb91e8a58fc..6770f6feb7081f4462be9f30d6e0db87195e29a5 100644 (file)
--- a/IkiWiki/CGI.pm
+++ b/IkiWiki/CGI.pm
@@ -1,5 +1,7 @@
 #!/usr/bin/perl
 
+package IkiWiki;
+
 use warnings;
 use strict;
 use IkiWiki;
@@ -7,8 +9,6 @@ use IkiWiki::UserInfo;
 use open qw{:utf8 :std};
 use Encode;
 
-package IkiWiki;
-
 sub printheader ($) { #{{{
        my $session=shift;
        
@@ -304,8 +304,9 @@ sub cgi_editpage ($$) { #{{{
        # This untaint is safe because we check file_pruned.
        my $page=$form->field('page');
        $page=possibly_foolish_untaint($page);
+       my $absolute=($page =~ s#^/+##);
        if (! defined $page || ! length $page ||
-           file_pruned($page, $config{srcdir}) || $page=~/^\//) {
+           file_pruned($page, $config{srcdir})) {
                error("bad page name");
        }
 
@@ -424,7 +425,8 @@ sub cgi_editpage ($$) { #{{{
                        if (! defined $from || ! length $from ||
                            $from ne $form->field('from') ||
                            file_pruned($from, $config{srcdir}) ||
-                           $from=~/^\// ||
+                           $from=~/^\// || 
+                           $absolute ||
                            $form->submitted eq "Preview") {
                                @page_locs=$best_loc=$page;
                        }
@@ -645,8 +647,14 @@ sub cgi_getsession ($) { #{{{
        CGI::Session->name("ikiwiki_session_".encode_utf8($config{wikiname}));
        
        my $oldmask=umask(077);
-       my $session = CGI::Session->new("driver:DB_File", $q,
-               { FileName => "$config{wikistatedir}/sessions.db" });
+       my $session = eval {
+               CGI::Session->new("driver:DB_File", $q,
+                       { FileName => "$config{wikistatedir}/sessions.db" })
+       };
+       if (! $session || $@) {
+               error($@." ".CGI::Session->errstr());
+       }
+       
        umask($oldmask);
 
        return $session;