Make sure we do not pass multiple CGI parameters in function calls

[ikiwiki.git] / IkiWiki / Plugin / attachment.pm

diff --git a/IkiWiki/Plugin/attachment.pm b/IkiWiki/Plugin/attachment.pm
index 5a180cd5cf3c3eaac5282ef267982327e49eba8d..fb8a6539eac53fd66c85e4c98c09bfb1dbf71bb7 100644 (file)
--- a/IkiWiki/Plugin/attachment.pm
+++ b/IkiWiki/Plugin/attachment.pm
@@ -132,7 +132,7 @@ sub formbuilder (@) {
 
        return if ! defined $form->field("do") || ($form->field("do") ne "edit" && $form->field("do") ne "create") ;
 
-       my $filename=Encode::decode_utf8($q->param('attachment'));
+       my $filename=Encode::decode_utf8(scalar $q->param('attachment'));
        if (defined $filename && length $filename) {
                attachment_store($filename, $form, $q, $params{session});
        }
@@ -142,13 +142,13 @@ sub formbuilder (@) {
        }
 
        if ($form->submitted eq "Insert Links") {
-               my $page=quotemeta(Encode::decode_utf8($q->param("page")));
+               my $page=quotemeta(Encode::decode_utf8(scalar $q->param("page")));
                my $add="";
                foreach my $f ($q->param("attachment_select")) {
                        $f=Encode::decode_utf8($f);
                        $f=~s/^$page\///;
                        if (IkiWiki::isinlinableimage($f) &&
-                           UNIVERSAL::can("IkiWiki::Plugin::img", "import")) {
+                           IkiWiki::Plugin::img->can("import")) {
                                $add.='[[!img '.$f.' align="right" size="" alt=""]]';
                        }
                        else {
@@ -229,8 +229,10 @@ sub attachment_store {
                check_canattach($session, $final_filename, $tempfile);
        };
        if ($@) {
-               json_response($q, $form, $dest."/".$filename, $@);
-               error $@;
+               # save error in case called functions clobber $@
+               my $error = $@;
+               json_response($q, $form, $dest."/".$filename, $error);
+               error $error;
        }
 
        # Move the attachment into holding directory.
@@ -274,19 +276,19 @@ sub attachments_save {
        foreach my $filename (glob("$dir/*")) {
                $filename=Encode::decode_utf8($filename);
                next unless -f $filename;
-               my $destdir=$config{srcdir}."/".
-                       linkpage(IkiWiki::possibly_foolish_untaint(
-                               attachment_location($form->field('page'))));
+               my $destdir=linkpage(IkiWiki::possibly_foolish_untaint(
+                       attachment_location($form->field('page'))));
+               my $absdestdir=$config{srcdir}."/".$destdir;
                my $destfile=IkiWiki::basename($filename);
-               my $dest=$destdir.$destfile;
+               my $dest=$absdestdir.$destfile;
                unlink($dest);
-               IkiWiki::prep_writefile($destfile, $destdir);
+               IkiWiki::prep_writefile($destfile, $absdestdir);
                rename($filename, $dest);
-               push @attachments, $dest;
+               push @attachments, $destdir.$destfile;
        }
        return unless @attachments;
        require IkiWiki::Render;
-       IkiWiki::prune($dir);
+       IkiWiki::prune($dir, $config{wikistatedir}."/attachments");
 
        # Check the attachments in and trigger a wiki refresh.
        if ($config{rcs}) {