]> git.vanrenterghem.biz Git - git.ikiwiki.info.git/blobdiff - IkiWiki/CGI.pm
resp
[git.ikiwiki.info.git] / IkiWiki / CGI.pm
index 042e168aa8dc501613746ea3af45b2ecbbc4fafa..99cead64fcbbf5461820720c415f5eb91e8a58fc 100644 (file)
@@ -78,9 +78,24 @@ sub check_canedit ($$$;$) { #{{{
 } #}}}
 
 sub decode_cgi_utf8 ($) { #{{{
-       my $cgi = shift;
-       foreach my $f ($cgi->param) {
-               $cgi->param($f, map { decode_utf8 $_ } $cgi->param($f));
+       # decode_form_utf8 method is needed for 5.10
+       if ($] < 5.01) {
+               my $cgi = shift;
+               foreach my $f ($cgi->param) {
+                       $cgi->param($f, map { decode_utf8 $_ } $cgi->param($f));
+               }
+       }
+} #}}}
+
+sub decode_form_utf8 ($) { #{{{
+       if ($] >= 5.01) {
+               my $form = shift;
+               foreach my $f ($form->field) {
+                       $form->field(name  => $f,
+                                    value => decode_utf8($form->field($f)),
+                                    force => 1,
+                       );
+               }
        }
 } #}}}
 
@@ -127,10 +142,12 @@ sub cgi_signin ($$) { #{{{
        $form->field(name => "do", type => "hidden", value => "signin",
                force => 1);
        
+       decode_form_utf8($form);
        run_hooks(formbuilder_setup => sub {
                shift->(form => $form, cgi => $q, session => $session,
                        buttons => $buttons);
        });
+       decode_form_utf8($form);
 
        if ($form->submitted) {
                $form->validate;
@@ -161,8 +178,18 @@ sub cgi_prefs ($$) { #{{{
        my $session=shift;
 
        needsignin($q, $session);
-
        decode_cgi_utf8($q);
+       
+       # The session id is stored on the form and checked to
+       # guard against CSRF.
+       my $sid=$q->param('sid');
+       if (! defined $sid) {
+               $q->delete_all;
+       }
+       elsif ($sid ne $session->id) {
+               error(gettext("Your login session has expired."));
+       }
+
        eval q{use CGI::FormBuilder};
        error($@) if $@;
        my $form = CGI::FormBuilder->new(
@@ -187,13 +214,18 @@ sub cgi_prefs ($$) { #{{{
                ],
        );
        my $buttons=["Save Preferences", "Logout", "Cancel"];
-
+       
+       decode_form_utf8($form);
        run_hooks(formbuilder_setup => sub {
                shift->(form => $form, cgi => $q, session => $session,
                        buttons => $buttons);
        });
+       decode_form_utf8($form);
        
-       $form->field(name => "do", type => "hidden");
+       $form->field(name => "do", type => "hidden", value => "prefs",
+               force => 1);
+       $form->field(name => "sid", type => "hidden", value => $session->id,
+               force => 1);
        $form->field(name => "email", size => 50, fieldset => "preferences");
        $form->field(name => "banned_users", size => 50,
                fieldset => "admin");
@@ -241,15 +273,14 @@ sub cgi_prefs ($$) { #{{{
 sub cgi_editpage ($$) { #{{{
        my $q=shift;
        my $session=shift;
+       
+       decode_cgi_utf8($q);
 
        my @fields=qw(do rcsinfo subpage from page type editcontent comments);
        my @buttons=("Save Page", "Preview", "Cancel");
-       
-       decode_cgi_utf8($q);
        eval q{use CGI::FormBuilder};
        error($@) if $@;
        my $form = CGI::FormBuilder->new(
-               title => "editpage",
                fields => \@fields,
                charset => "utf-8",
                method => 'POST',
@@ -263,15 +294,16 @@ sub cgi_editpage ($$) { #{{{
                wikiname => $config{wikiname},
        );
        
+       decode_form_utf8($form);
        run_hooks(formbuilder_setup => sub {
                shift->(form => $form, cgi => $q, session => $session,
                        buttons => \@buttons);
        });
+       decode_form_utf8($form);
        
-       # This untaint is safe because titlepage removes any problematic
-       # characters.
-       my ($page)=$form->field('page');
-       $page=titlepage(possibly_foolish_untaint($page));
+       # This untaint is safe because we check file_pruned.
+       my $page=$form->field('page');
+       $page=possibly_foolish_untaint($page);
        if (! defined $page || ! length $page ||
            file_pruned($page, $config{srcdir}) || $page=~/^\//) {
                error("bad page name");
@@ -316,10 +348,12 @@ sub cgi_editpage ($$) { #{{{
        }
 
        $form->field(name => "do", type => 'hidden');
+       $form->field(name => "sid", type => "hidden", value => $session->id,
+               force => 1);
        $form->field(name => "from", type => 'hidden');
        $form->field(name => "rcsinfo", type => 'hidden');
        $form->field(name => "subpage", type => 'hidden');
-       $form->field(name => "page", value => pagetitle($page, 1), force => 1);
+       $form->field(name => "page", value => $page, force => 1);
        $form->field(name => "type", value => $type, force => 1);
        $form->field(name => "comments", type => "text", size => 80);
        $form->field(name => "editcontent", type => "textarea", rows => 20,
@@ -344,7 +378,14 @@ sub cgi_editpage ($$) { #{{{
                return;
        }
        elsif ($form->submitted eq "Preview") {
+               my $new=not exists $pagesources{$page};
+               if ($new) {
+                       # temporarily record its type
+                       $pagesources{$page}=$page.".".$type;
+               }
+
                my $content=$form->field('editcontent');
+
                run_hooks(editcontent => sub {
                        $content=shift->(
                                content => $content,
@@ -353,11 +394,21 @@ sub cgi_editpage ($$) { #{{{
                                session => $session,
                        );
                });
-               $form->tmpl_param("page_preview",
-                       htmlize($page, $type,
+               my $preview=htmlize($page, $page, $type,
                        linkify($page, $page,
                        preprocess($page, $page,
-                       filter($page, $page, $content), 0, 1))));
+                       filter($page, $page, $content), 0, 1)));
+               run_hooks(format => sub {
+                       $preview=shift->(
+                               page => $page,
+                               content => $preview,
+                       );
+               });
+               $form->tmpl_param("page_preview", $preview);
+       
+               if ($new) {
+                       delete $pagesources{$page};
+               }
                # previewing may have created files on disk
                saveindex();
        }
@@ -434,8 +485,8 @@ sub cgi_editpage ($$) { #{{{
                        
                        $form->tmpl_param("page_select", 1);
                        $form->field(name => "page", type => 'select',
-                               options => [ map { pagetitle($_, 1) } @editable_locs ],
-                               value => pagetitle($best_loc, 1));
+                               options => [ map { [ $_, pagetitle($_, 1) ] } @editable_locs ],
+                               value => $best_loc);
                        $form->field(name => "type", type => 'select',
                                options => \@page_types);
                        $form->title(sprintf(gettext("creating %s"), pagetitle($page)));
@@ -464,11 +515,21 @@ sub cgi_editpage ($$) { #{{{
        else {
                # save page
                check_canedit($page, $q, $session);
+       
+               # The session id is stored on the form and checked to
+               # guard against CSRF. But only if the user is logged in,
+               # as anonok can allow anonymous edits.
+               if (defined $session->param("name")) {
+                       my $sid=$q->param('sid');
+                       if (! defined $sid || $sid ne $session->id) {
+                               error(gettext("Your login session has expired."));
+                       }
+               }
 
                my $exists=-e "$config{srcdir}/$file";
 
                if ($form->field("do") ne "create" && ! $exists &&
-                   ! eval { srcfile($file) }) {
+                   ! defined srcfile($file, 1)) {
                        $form->tmpl_param("page_gone", 1);
                        $form->field(name => "do", value => "create", force => 1);
                        $form->tmpl_param("page_select", 0);
@@ -580,6 +641,7 @@ sub cgi_getsession ($) { #{{{
        my $q=shift;
 
        eval q{use CGI::Session};
+       error($@) if $@;
        CGI::Session->name("ikiwiki_session_".encode_utf8($config{wikiname}));
        
        my $oldmask=umask(077);
@@ -603,11 +665,14 @@ sub cgi (;$$) { #{{{
        my $q=shift;
        my $session=shift;
 
+       eval q{use CGI};
+       error($@) if $@;
+       $CGI::DISABLE_UPLOADS=$config{cgi_disable_uploads};
+
        if (! $q) {
-               eval q{use CGI};
-               error($@) if $@;
-       
+               binmode(STDIN);
                $q=CGI->new;
+               binmode(STDIN, ":utf8");
        
                run_hooks(cgi => sub { shift->($q) });
        }