Merge branch 'ready/chrysn/linkmapenhancement'

[ikiwiki.git] / IkiWiki / CGI.pm

diff --git a/IkiWiki/CGI.pm b/IkiWiki/CGI.pm
index 5baa6c1798ef02e1f45680daa032da17674fafb0..cb83319e62ee893d92fd1d5f64695c23144d2614 100644 (file)
--- a/IkiWiki/CGI.pm
+++ b/IkiWiki/CGI.pm
@@ -110,11 +110,23 @@ sub decode_cgi_utf8 ($) {
        }
 }
 
+sub safe_decode_utf8 ($) {
+    my $octets = shift;
+    # call decode_utf8 on >= 5.20 only if it's not already decoded,
+    # otherwise it balks, on < 5.20, always call it
+    if ($] < 5.02 || !Encode::is_utf8($octets)) {
+        return decode_utf8($octets);
+    }
+    else {
+        return $octets;
+    }
+}
+
 sub decode_form_utf8 ($) {
        if ($] >= 5.01) {
                my $form = shift;
                foreach my $f ($form->field) {
-                       my @value=map { decode_utf8($_) } $form->field($f);
+                       my @value=map { safe_decode_utf8($_) } $form->field($f);
                        $form->field(name  => $f,
                                     value => \@value,
                                     force => 1,
@@ -351,7 +363,8 @@ sub cgi_getsession ($) {
                        { FileName => "$config{wikistatedir}/sessions.db" })
        };
        if (! $session || $@) {
-               error($@." ".CGI::Session->errstr());
+               my $error = $@;
+               error($error." ".CGI::Session->errstr());
        }
        
        umask($oldmask);