fix cgiurl check

[git.ikiwiki.info.git] / IkiWiki / Plugin / remove.pm

diff --git a/IkiWiki/Plugin/remove.pm b/IkiWiki/Plugin/remove.pm
index a372406808fff8c7c73b777bac8fc2cddb1a6244..a886956b28ce72a7b62063a6284f84623b942ab9 100644 (file)
--- a/IkiWiki/Plugin/remove.pm
+++ b/IkiWiki/Plugin/remove.pm
@@ -12,6 +12,38 @@ sub import { #{{{
 
 } # }}}
 
+sub check_canremove ($$$$) { #{{{
+       my $page=shift;
+       my $q=shift;
+       my $session=shift;
+       my $attachment=shift;
+
+       # Must be a known source file.
+       if (! exists $pagesources{$page}) {
+               error(sprintf(gettext("%s does not exist"),
+                       htmllink("", "", $page, noimageinline => 1)));
+       }
+
+       # Must exist on disk, and be a regular file.
+       my $file=$pagesources{$page};
+       if (! -e "$config{srcdir}/$file") {
+               error(sprintf(gettext("%s is not in the srcdir, so it cannot be deleted"), $file));
+       }
+       elsif (-l "$config{srcdir}/$file" && ! -f _) {
+               error(sprintf(gettext("%s is not a file"), $file));
+       }
+       
+       # Must be editiable.
+       IkiWiki::check_canedit($page, $q, $session);
+
+       # This is sorta overkill, but better safe
+       # than sorry. If a user can't upload an
+       # attachment, don't let them delete it.
+       if ($attachment) {
+               IkiWiki::Plugin::attachment::check_canattach($session, $page, $file);
+       }
+} #}}}
+
 sub formbuilder_setup (@) { #{{{
        my %params=@_;
        my $form=$params{form};
@@ -30,7 +62,6 @@ sub confirmation_form ($$) { #{{{
 
        eval q{use CGI::FormBuilder};
        error($@) if $@;
-       my @fields=qw(do page);
        my $f = CGI::FormBuilder->new(
                name => "remove",
                header => 0,
@@ -40,7 +71,7 @@ sub confirmation_form ($$) { #{{{
                params => $q,
                action => $config{cgiurl},
                stylesheet => IkiWiki::baseurl()."style.css",
-               fields => \@fields,
+               fields => [qw{do page}],
        );
        
        $f->field(name => "do", type => "hidden", value => "remove", force => 1);
@@ -48,12 +79,14 @@ sub confirmation_form ($$) { #{{{
        return $f, ["Remove", "Cancel"];
 } #}}}
 
-sub removal_confirm ($$@) {
+sub removal_confirm ($$@) { #{{{
        my $q=shift;
        my $session=shift;
        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
@@ -74,9 +107,9 @@ sub removal_confirm ($$@) {
 
        IkiWiki::showform($f, $buttons, $session, $q);
        exit 0;
-}
+} #}}}
 
-sub postremove ($) {
+sub postremove ($) { #{{{
        my $session=shift;
 
        # Load saved form state and return to edit form.
@@ -84,7 +117,7 @@ sub postremove ($) {
        $session->clear("postremove");
        IkiWiki::cgi_savesession($session);
        IkiWiki::cgi($postremove, $session);
-}
+} #}}}
 
 sub formbuilder (@) { #{{{
        my %params=@_;
@@ -98,7 +131,11 @@ sub formbuilder (@) { #{{{
                        removal_confirm($q, $session, 0, $form->field("page"));
                }
                elsif ($form->submitted eq "Remove Attachments") {
-                       removal_confirm($q, $session, 1, $q->param("attachment_select"));
+                       my @selected=$q->param("attachment_select");
+                       if (! @selected) {
+                               error(gettext("Please select the attachments to remove."));
+                       }
+                       removal_confirm($q, $session, 1, @selected);
                }
        }
 } #}}}
@@ -116,16 +153,17 @@ sub sessioncgi ($$) { #{{{
                }
                elsif ($form->submitted eq 'Remove' && $form->validate) {
                        my @pages=$q->param("page");
-                       my @files = map { $pagesources{$_} } @pages;
        
                        # Validate removal by checking that the page exists,
                        # and that the user is allowed to edit(/remove) it.
+                       my @files;
                        foreach my $page (@pages) {
-                               if (! exists $pagesources{$page}) {
-                                       error(sprintf(gettext("%s does not exist"),
-                                       htmllink("", "", $page, noimageinline => 1)));
-                               }
-                               IkiWiki::check_canedit($page, $q, $session);
+                               check_canremove($page, $q, $session, $q->param("attachment"));
+                               
+                               # This untaint is safe because of the
+                               # checks performed above, which verify the
+                               # page is a normal file, etc.
+                               push @files, IkiWiki::possibly_foolish_untaint($pagesources{$page});
                        }
 
                        # Do removal, and update the wiki.
@@ -134,22 +172,23 @@ sub sessioncgi ($$) { #{{{
                                IkiWiki::disable_commit_hook();
                                foreach my $file (@files) {
                                        IkiWiki::rcs_remove($file);
-                                       IkiWiki::rcs_commit($file, gettext("removed"),
-                                               IkiWiki::rcs_prepedit($file),
-                                               $session->param("name"), $ENV{REMOTE_ADDR});
                                }
+                               IkiWiki::rcs_commit_staged(gettext("removed"),
+                                       $session->param("name"), $ENV{REMOTE_ADDR});
                                IkiWiki::enable_commit_hook();
                                IkiWiki::rcs_update();
                        }
-                       foreach my $file (@files) {
-                               IkiWiki::prune("$config{srcdir}/$file");
+                       else {
+                               foreach my $file (@files) {
+                                       IkiWiki::prune("$config{srcdir}/$file");
+                               }
                        }
                        IkiWiki::refresh();
                        IkiWiki::saveindex();
 
                        if ($q->param("attachment")) {
                                # Attachments were deleted, so redirect
-                               # to the edit form.
+                               # back to the edit form.
                                postremove($session);
                        }
                        else {