permission checking improvements

Break out into function so it can be done up-front before confirmation too.

diff --git a/IkiWiki/Plugin/remove.pm b/IkiWiki/Plugin/remove.pm
index 9b665513909bef3a395ab91469742d2d44be64ea..d4f1c7d66e50d66b685794c143b86c6bf86db4dc 100644 (file)
--- a/IkiWiki/Plugin/remove.pm
+++ b/IkiWiki/Plugin/remove.pm
@@ -12,6 +12,38 @@ sub import { #{{{
 
 } # }}}
 
+sub check_canremove ($$$$) {
+       my $page=shift;
+       my $q=shift;
+       my $session=shift;
+       my $attachment=shift;
+
+       # Must be a known source file.
+       if (! exists $pagesources{$page}) {
+               error(sprintf(gettext("%s does not exist"),
+               htmllink("", "", $page, noimageinline => 1)));
+       }
+
+       # Must exist on disk, and be a regular file.
+       my $file=$pagesources{$page};
+       if (! -e "$config{srcdir}/$file") {
+               error(sprintf(gettext("%s is not in the srcdir, so it cannot be deleted"), $file));
+       }
+       elsif (-l "$config{srcdir}/$file" && ! -f _) {
+               error(sprintf(gettext("%s is not a file"), $file));
+       }
+       
+       # Must be editiable.
+       IkiWiki::check_canedit($page, $q, $session);
+
+       # This is sorta overkill, but better safe
+       # than sorry. If a user can't upload an
+       # attachment, don't let them delete it.
+       if ($attachment) {
+               IkiWiki::Plugin::attachment::check_canattach($session, $page, $file);
+       }
+}
+
 sub formbuilder_setup (@) { #{{{
        my %params=@_;
        my $form=$params{form};
@@ -53,6 +85,8 @@ sub removal_confirm ($$@) {
        my $attachment=shift;
        my @pages=@_;
 
+       check_canremove($_, $q, $session, $attachment) foreach @pages;
+
        # Save current form state to allow returning to it later
        # without losing any edits.
        # (But don't save what button was submitted, to avoid
@@ -124,32 +158,9 @@ sub sessioncgi ($$) { #{{{
                        # and that the user is allowed to edit(/remove) it.
                        my @files;
                        foreach my $page (@pages) {
-                               # Must be a known source file.
-                               if (! exists $pagesources{$page}) {
-                                       error(sprintf(gettext("%s does not exist"),
-                                       htmllink("", "", $page, noimageinline => 1)));
-                               }
-
-                               # Must exist on disk, and be a regular file.
-                               my $file=$pagesources{$page};
-                               if (! -e "$config{srcdir}/$file") {
-                                       error(sprintf(gettext("%s is not in the srcdir, so it cannot be deleted"), $file));
-                               }
-                               elsif (-l "$config{srcdir}/$file" && ! -f _) {
-                                       error(sprintf(gettext("%s is not a file"), $file));
-                               }
-                               
-                               # Must be editiable.
-                               IkiWiki::check_canedit($page, $q, $session);
-
-                               # This is sorta overkill, but better safe
-                               # than sorry. If a user can't upload an
-                               # attachment, don't let them delete it.
-                               if ($q->param("attachment")) {
-                                       IkiWiki::Plugin::attachment::check_canattach($session, $page, $file);
-                               }
+                               check_canremove($page, $q, $session, $q->param("attachment"));
 
-                               push @files, IkiWiki::possibly_foolish_untaint($file);
+                               push @files, IkiWiki::possibly_foolish_untaint($pagesources{$page});
                        }
 
                        # Do removal, and update the wiki.