web commit by http://madduck.myopenid.com/: incorporate fjp's suggestions

[git.ikiwiki.info.git] / IkiWiki / CGI.pm

diff --git a/IkiWiki/CGI.pm b/IkiWiki/CGI.pm
index 7f84f345a23e153074f3ff8b9c9db52c39871dd7..155010a97e6d606a1fff8af7b85ff93aef8fc0f5 100644 (file)
--- a/IkiWiki/CGI.pm
+++ b/IkiWiki/CGI.pm
@@ -20,6 +20,24 @@ sub printheader ($) { #{{{
        }
 
 } #}}}
        }
 
 } #}}}

+       
+sub showform ($$$$) { #{{{
+       my $form=shift;
+       my $buttons=shift;
+       my $session=shift;
+       my $cgi=shift;
+
+       if (exists $hooks{formbuilder}) {
+               run_hooks(formbuilder => sub {
+                       shift->(form => $form, cgi => $cgi, session => $session,
+                               buttons => $buttons);
+               });
+       }
+       else {
+               printheader($session);
+               print misctemplate($form->title, $form->render(submit => $buttons));
+       }
+}

 
 sub redirect ($$) { #{{{
        my $q=shift;
 
 sub redirect ($$) { #{{{
        my $q=shift;


@@ -33,26 +51,25 @@ sub redirect ($$) { #{{{
        }
 } #}}}
 
        }
 } #}}}
 

-sub page_locked ($$;$) { #{{{
+sub check_canedit ($$$;$) { #{{{

        my $page=shift;
        my $page=shift;

+       my $q=shift;

        my $session=shift;
        my $nonfatal=shift;
        
        my $session=shift;
        my $nonfatal=shift;
        

-       my $user=$session->param("name");
-       return if defined $user && is_admin($user);
-
-       foreach my $admin (@{$config{adminuser}}) {
-               my $locked_pages=userinfo_get($admin, "locked_pages");
-               if (pagespec_match($page, userinfo_get($admin, "locked_pages"))) {
-                       return 1 if $nonfatal;
-
-                       error(sprintf(gettext("%s is locked by %s and cannot be edited"),
-                               htmllink("", "", $page, 1),
-                               userlink($admin)));
+       my $canedit;
+       run_hooks(canedit => sub {
+               return if defined $canedit;
+               my $ret=shift->($page, $q, $session);
+               if (defined $ret && $ret eq "") {
+                       $canedit=1;

                }
                }

-       }
-
-       return 0;
+               elsif (defined $ret) {
+                       $canedit=0;
+                       error($ret) unless $nonfatal;
+               }
+       });
+       return $canedit;

 } #}}}
 
 sub decode_form_utf8 ($) { #{{{
 } #}}}
 
 sub decode_form_utf8 ($) { #{{{


@@ -90,7 +107,9 @@ sub cgi_recentchanges ($) { #{{{
                delete @{$change->{pages}}[10 .. @{$change->{pages}}] if $is_excess;
                $change->{pages} = [
                        map {
                delete @{$change->{pages}}[10 .. @{$change->{pages}}] if $is_excess;
                $change->{pages} = [
                        map {

-                               $_->{link} = htmllink("", "", $_->{page}, 1);
+                               $_->{link} = htmllink("", "", $_->{page},
+                                       noimageinline => 1,
+                                       linktext => pagetitle($_->{page}));

                                $_;
                        } @{$change->{pages}}
                ];
                                $_;
                        } @{$change->{pages}}
                ];


@@ -111,6 +130,23 @@ sub cgi_recentchanges ($) { #{{{
        print $q->header(-charset => 'utf-8'), $template->output;
 } #}}}
 
        print $q->header(-charset => 'utf-8'), $template->output;
 } #}}}
 

+# Check if the user is signed in. If not, redirect to the signin form and
+# save their place to return to later.
+sub needsignin ($$) { #{{{
+       my $q=shift;
+       my $session=shift;
+
+       if (! defined $session->param("name") ||
+           ! userinfo_get($session->param("name"), "regdate")) {
+               if (! defined $session->param("postsignin")) {
+                       $session->param(postsignin => $ENV{QUERY_STRING});
+               }
+               cgi_signin($q, $session);
+               cgi_savesession($session);
+               exit;
+       }
+} #}}} 
+

 sub cgi_signin ($$) { #{{{
        my $q=shift;
        my $session=shift;
 sub cgi_signin ($$) { #{{{
        my $q=shift;
        my $session=shift;


@@ -119,7 +155,7 @@ sub cgi_signin ($$) { #{{{
        error($@) if $@;
        my $form = CGI::FormBuilder->new(
                title => "signin",
        error($@) if $@;
        my $form = CGI::FormBuilder->new(
                title => "signin",

-               header => 1,
+               name => "signin",

                charset => "utf-8",
                method => 'POST',
                required => 'NONE',
                charset => "utf-8",
                method => 'POST',
                required => 'NONE',


@@ -127,46 +163,37 @@ sub cgi_signin ($$) { #{{{
                params => $q,
                action => $config{cgiurl},
                header => 0,
                params => $q,
                action => $config{cgiurl},
                header => 0,

-               template => (-e "$config{templatedir}/signin.tmpl" ?
-                            {template_params("signin.tmpl")} : ""),
+               template => {type => 'div'},

                stylesheet => baseurl()."style.css",
        );
        my $buttons=["Login"];
        
                stylesheet => baseurl()."style.css",
        );
        my $buttons=["Login"];
        

-       $form->field(name => "do", type => "hidden");
-       

        if ($q->param("do") ne "signin" && !$form->submitted) {
                $form->text(gettext("You need to log in first."));
        }
        if ($q->param("do") ne "signin" && !$form->submitted) {
                $form->text(gettext("You need to log in first."));
        }

+       $form->field(name => "do", type => "hidden", value => "signin",
+               force => 1);
+       
+       decode_form_utf8($form);

        
        run_hooks(formbuilder_setup => sub {
        
        run_hooks(formbuilder_setup => sub {

-               shift->(form => $form, cgi => $q, session => $session);
+               shift->(form => $form, cgi => $q, session => $session,
+                       buttons => $buttons);

        });
        });

-       
-       decode_form_utf8($form);

 
 

-       if (exists $hooks{formbuilder}) {
-               run_hooks(formbuilder => sub {
-                       shift->(form => $form, cgi => $q, session => $session,
-                               buttons => $buttons);
-               });
-       }
-       else {
-               if ($form->submitted) {
-                       $form->validate;
-               }
-               printheader($session);
-               print misctemplate($form->title, $form->render(submit => $buttons));
+       if ($form->submitted) {
+               $form->validate;

        }
        }

+
+       showform($form, $buttons, $session, $q);

 } #}}}
 
 sub cgi_postsignin ($$) { #{{{
        my $q=shift;
        my $session=shift;
 } #}}}
 
 sub cgi_postsignin ($$) { #{{{
        my $q=shift;
        my $session=shift;

-
+       

        # Continue with whatever was being done before the signin process.
        # Continue with whatever was being done before the signin process.

-       if (defined $q->param("do") && $q->param("do") ne "signin" &&
-           defined $session->param("postsignin")) {
+       if (defined $session->param("postsignin")) {

                my $postsignin=CGI->new($session->param("postsignin"));
                $session->clear("postsignin");
                cgi($postsignin, $session);
                my $postsignin=CGI->new($session->param("postsignin"));
                $session->clear("postsignin");
                cgi($postsignin, $session);


@@ -174,6 +201,8 @@ sub cgi_postsignin ($$) { #{{{
                exit;
        }
        else {
                exit;
        }
        else {

+               # This can occur, for example, if a user went to the signin
+               # url via a bookmark.

                redirect($q, $config{url});
        }
 } #}}}
                redirect($q, $config{url});
        }
 } #}}}


@@ -182,10 +211,13 @@ sub cgi_prefs ($$) { #{{{
        my $q=shift;
        my $session=shift;
 
        my $q=shift;
        my $session=shift;
 

+       needsignin($q, $session);
+

        eval q{use CGI::FormBuilder};
        error($@) if $@;
        my $form = CGI::FormBuilder->new(
                title => "preferences",
        eval q{use CGI::FormBuilder};
        error($@) if $@;
        my $form = CGI::FormBuilder->new(
                title => "preferences",

+               name => "preferences",

                header => 0,
                charset => "utf-8",
                method => 'POST',
                header => 0,
                charset => "utf-8",
                method => 'POST',


@@ -196,27 +228,33 @@ sub cgi_prefs ($$) { #{{{
                javascript => 0,
                params => $q,
                action => $config{cgiurl},
                javascript => 0,
                params => $q,
                action => $config{cgiurl},

-               template => (-e "$config{templatedir}/prefs.tmpl" ?
-                            {template_params("prefs.tmpl")} : ""),
+               template => {type => 'div'},

                stylesheet => baseurl()."style.css",
                stylesheet => baseurl()."style.css",

+               fieldsets => [
+                       [login => gettext("Login")],
+                       [preferences => gettext("Preferences")],
+                       [admin => gettext("Admin")]
+               ],

        );
        my $buttons=["Save Preferences", "Logout", "Cancel"];
 
        );
        my $buttons=["Save Preferences", "Logout", "Cancel"];
 

+       decode_form_utf8($form);
+

        run_hooks(formbuilder_setup => sub {
        run_hooks(formbuilder_setup => sub {

-               shift->(form => $form, cgi => $q, session => $session);
+               shift->(form => $form, cgi => $q, session => $session,
+                       buttons => $buttons);

        });
        
        $form->field(name => "do", type => "hidden");
        });
        
        $form->field(name => "do", type => "hidden");

-       $form->field(name => "email", size => 50);
+       $form->field(name => "email", size => 50, fieldset => "preferences");

        $form->field(name => "subscriptions", size => 50,
        $form->field(name => "subscriptions", size => 50,

-               comment => "(".htmllink("", "", "PageSpec", 1).")");
-       $form->field(name => "locked_pages", size => 50,
-               comment => "(".htmllink("", "", "PageSpec", 1).")");
-       $form->field(name => "banned_users", size => 50);
+               fieldset => "preferences",
+               comment => "(".htmllink("", "", "PageSpec", noimageinline => 1).")");
+       $form->field(name => "banned_users", size => 50,
+               fieldset => "admin");

        
        my $user_name=$session->param("name");
        if (! is_admin($user_name)) {
        
        my $user_name=$session->param("name");
        if (! is_admin($user_name)) {

-               $form->field(name => "locked_pages", type => "hidden");

                $form->field(name => "banned_users", type => "hidden");
        }
 
                $form->field(name => "banned_users", type => "hidden");
        }
 


@@ -225,16 +263,12 @@ sub cgi_prefs ($$) { #{{{
                        value => userinfo_get($user_name, "email"));
                $form->field(name => "subscriptions", force => 1,
                        value => userinfo_get($user_name, "subscriptions"));
                        value => userinfo_get($user_name, "email"));
                $form->field(name => "subscriptions", force => 1,
                        value => userinfo_get($user_name, "subscriptions"));

-               $form->field(name => "locked_pages", force => 1,
-                       value => userinfo_get($user_name, "locked_pages"));

                if (is_admin($user_name)) {
                        $form->field(name => "banned_users", force => 1,
                                value => join(" ", get_banned_users()));
                }
        }
        
                if (is_admin($user_name)) {
                        $form->field(name => "banned_users", force => 1,
                                value => join(" ", get_banned_users()));
                }
        }
        

-       decode_form_utf8($form);
-       

        if ($form->submitted eq 'Logout') {
                $session->delete();
                redirect($q, $config{url});
        if ($form->submitted eq 'Logout') {
                $session->delete();
                redirect($q, $config{url});


@@ -245,28 +279,22 @@ sub cgi_prefs ($$) { #{{{
                return;
        }
        elsif ($form->submitted eq 'Save Preferences' && $form->validate) {
                return;
        }
        elsif ($form->submitted eq 'Save Preferences' && $form->validate) {

-               foreach my $field (qw(email subscriptions locked_pages)) {
+               foreach my $field (qw(email subscriptions)) {

                        if (defined $form->field($field) && length $form->field($field)) {
                        if (defined $form->field($field) && length $form->field($field)) {

-                               userinfo_set($user_name, $field, $form->field($field)) || error("failed to set $field");
+                               userinfo_set($user_name, $field, $form->field($field)) ||
+                                       error("failed to set $field");

                        }
                }
                if (is_admin($user_name)) {
                        set_banned_users(grep { ! is_admin($_) }
                        }
                }
                if (is_admin($user_name)) {
                        set_banned_users(grep { ! is_admin($_) }

-                                       split(' ', $form->field("banned_users")));
+                                       split(' ',
+                                               $form->field("banned_users"))) ||
+                               error("failed saving changes");

                }
                $form->text(gettext("Preferences saved."));
        }
        
                }
                $form->text(gettext("Preferences saved."));
        }
        

-       if (exists $hooks{formbuilder}) {
-               run_hooks(formbuilder => sub {
-                       shift->(form => $form, cgi => $q, session => $session,
-                               buttons => $buttons);
-               });
-       }
-       else {
-               printheader($session);
-               print misctemplate($form->title, $form->render(submit => $buttons));
-       }
+       showform($form, $buttons, $session, $q);

 } #}}}
 
 sub cgi_editpage ($$) { #{{{
 } #}}}
 
 sub cgi_editpage ($$) { #{{{


@@ -279,8 +307,8 @@ sub cgi_editpage ($$) { #{{{
        eval q{use CGI::FormBuilder};
        error($@) if $@;
        my $form = CGI::FormBuilder->new(
        eval q{use CGI::FormBuilder};
        error($@) if $@;
        my $form = CGI::FormBuilder->new(

+               title => "editpage",

                fields => \@fields,
                fields => \@fields,

-               header => 1,

                charset => "utf-8",
                method => 'POST',
                validate => {
                charset => "utf-8",
                method => 'POST',
                validate => {


@@ -290,22 +318,25 @@ sub cgi_editpage ($$) { #{{{
                javascript => 0,
                params => $q,
                action => $config{cgiurl},
                javascript => 0,
                params => $q,
                action => $config{cgiurl},

+               header => 0,

                table => 0,
                table => 0,

-               template => (-e "$config{templatedir}/editpage.tmpl" ?
-                               {template_params("editpage.tmpl")} : ""),
+               template => scalar template_params("editpage.tmpl"),
+               wikiname => $config{wikiname},

        );
        
        );
        

+       decode_form_utf8($form);
+       

        run_hooks(formbuilder_setup => sub {
        run_hooks(formbuilder_setup => sub {

-               shift->(form => $form, cgi => $q, session => $session);
+               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 titlepage removes any problematic
        # characters.
        my ($page)=$form->field('page');
        $page=titlepage(possibly_foolish_untaint($page));

-       if (! defined $page || ! length $page || file_pruned($page, $config{srcdir}) || $page=~/^\//) {
+       if (! defined $page || ! length $page ||
+           file_pruned($page, $config{srcdir}) || $page=~/^\//) {

                error("bad page name");
        }
        
                error("bad page name");
        }
        


@@ -316,9 +347,16 @@ sub cgi_editpage ($$) { #{{{
        
        my $file;
        my $type;
        
        my $file;
        my $type;

-       if (exists $pagesources{$page}) {
+       if (exists $pagesources{$page} && $form->field("do") ne "create") {

                $file=$pagesources{$page};
                $type=pagetype($file);
                $file=$pagesources{$page};
                $type=pagetype($file);

+               if (! defined $type) {
+                       error(sprintf(gettext("%s is not an editable page"), $page));
+               }
+               if (! $form->submitted) {
+                       $form->field(name => "rcsinfo",
+                               value => rcs_prepedit($file), force => 1);
+               }

        }
        else {
                $type=$form->param('type');
        }
        else {
                $type=$form->param('type');


@@ -331,18 +369,16 @@ sub cgi_editpage ($$) { #{{{
                }
                $type=$config{default_pageext} unless defined $type;
                $file=$page.".".$type;
                }
                $type=$config{default_pageext} unless defined $type;
                $file=$page.".".$type;

-       }
-
-       my $newfile=0;
-       if (! -e "$config{srcdir}/$file") {
-               $newfile=1;
+               if (! $form->submitted) {
+                       $form->field(name => "rcsinfo", value => "", force => 1);
+               }

        }
 
        $form->field(name => "do", type => 'hidden');
        $form->field(name => "from", type => 'hidden');
        $form->field(name => "rcsinfo", type => 'hidden');
        $form->field(name => "subpage", type => 'hidden');
        }
 
        $form->field(name => "do", type => 'hidden');
        $form->field(name => "from", type => 'hidden');
        $form->field(name => "rcsinfo", type => 'hidden');
        $form->field(name => "subpage", type => 'hidden');

-       $form->field(name => "page", value => $page, force => 1);
+       $form->field(name => "page", value => pagetitle($page, 1), 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,
        $form->field(name => "type", value => $type, force => 1);
        $form->field(name => "comments", type => "text", size => 80);
        $form->field(name => "editcontent", type => "textarea", rows => 20,


@@ -350,18 +386,14 @@ sub cgi_editpage ($$) { #{{{
        $form->tmpl_param("can_commit", $config{rcs});
        $form->tmpl_param("indexlink", indexlink());
        $form->tmpl_param("helponformattinglink",
        $form->tmpl_param("can_commit", $config{rcs});
        $form->tmpl_param("indexlink", indexlink());
        $form->tmpl_param("helponformattinglink",

-               htmllink("", "", "HelpOnFormatting", 1));
+               htmllink("", "", "HelpOnFormatting", noimageinline => 1));

        $form->tmpl_param("baseurl", baseurl());
        $form->tmpl_param("baseurl", baseurl());

-       if (! $form->submitted) {
-               $form->field(name => "rcsinfo", value => rcs_prepedit($file),
-                       force => 1);
-       }

        
        if ($form->submitted eq "Cancel") {
        
        if ($form->submitted eq "Cancel") {

-               if ($newfile && defined $from) {
+               if ($form->field("do") eq "create" && defined $from) {

                        redirect($q, "$config{url}/".htmlpage($from));
                }
                        redirect($q, "$config{url}/".htmlpage($from));
                }

-               elsif ($newfile) {
+               elsif ($form->field("do") eq "create") {

                        redirect($q, $config{url});
                }
                else {
                        redirect($q, $config{url});
                }
                else {


@@ -371,25 +403,26 @@ sub cgi_editpage ($$) { #{{{
        }
        elsif ($form->submitted eq "Preview") {
                my $content=$form->field('editcontent');
        }
        elsif ($form->submitted eq "Preview") {
                my $content=$form->field('editcontent');

-               my $comments=$form->field('comments');
-               $form->field(name => "editcontent",
-                               value => $content, force => 1);
-               $form->field(name => "comments",
-                               value => $comments, force => 1);
-               $config{rss}=$config{atom}=0; # avoid preview writing a feed!
+               run_hooks(editcontent => sub {
+                       $content=shift->(
+                               content => $content,
+                               page => $page,
+                               cgi => $q,
+                               session => $session,
+                       );
+               });

                $form->tmpl_param("page_preview",
                        htmlize($page, $type,
                        linkify($page, "",
                        preprocess($page, $page,
                $form->tmpl_param("page_preview",
                        htmlize($page, $type,
                        linkify($page, "",
                        preprocess($page, $page,

-                       filter($page, $content)))));
+                       filter($page, $page, $content), 0, 1))));

        }
        }

-       else {
+       elsif ($form->submitted eq "Save Page") {

                $form->tmpl_param("page_preview", "");
        }
        $form->tmpl_param("page_conflict", "");
        
                $form->tmpl_param("page_preview", "");
        }
        $form->tmpl_param("page_conflict", "");
        

-       if (! $form->submitted || $form->submitted eq "Preview" || 
-           ! $form->validate) {
+       if ($form->submitted ne "Save Page" || ! $form->validate) {

                if ($form->field("do") eq "create") {
                        my @page_locs;
                        my $best_loc;
                if ($form->field("do") eq "create") {
                        my @page_locs;
                        my $best_loc;


@@ -423,16 +456,22 @@ sub cgi_editpage ($$) { #{{{
                                if length $config{userdir};
 
                        @page_locs = grep {
                                if length $config{userdir};
 
                        @page_locs = grep {

-                               ! exists $pagecase{lc $_} &&
-                               ! page_locked($_, $session, 1)
+                               ! exists $pagecase{lc $_}

                        } @page_locs;
                        } @page_locs;

-                       

                        if (! @page_locs) {
                                # hmm, someone else made the page in the
                                # meantime?
                                redirect($q, "$config{url}/".htmlpage($page));
                                return;
                        }
                        if (! @page_locs) {
                                # hmm, someone else made the page in the
                                # meantime?
                                redirect($q, "$config{url}/".htmlpage($page));
                                return;
                        }

+
+                       my @editable_locs = grep {
+                               check_canedit($_, $q, $session, 1)
+                       } @page_locs;
+                       if (! @editable_locs) {
+                               # let it throw an error this time
+                               map { check_canedit($_, $q, $session) } @page_locs;
+                       }

                        
                        my @page_types;
                        if (exists $hooks{htmlize}) {
                        
                        my @page_types;
                        if (exists $hooks{htmlize}) {


@@ -441,13 +480,15 @@ sub cgi_editpage ($$) { #{{{
                        
                        $form->tmpl_param("page_select", 1);
                        $form->field(name => "page", type => 'select',
                        
                        $form->tmpl_param("page_select", 1);
                        $form->field(name => "page", type => 'select',

-                               options => \@page_locs, value => $best_loc);
+                               options => [ map { pagetitle($_, 1) } @editable_locs ],
+                               value => pagetitle($best_loc, 1));

                        $form->field(name => "type", type => 'select',
                                options => \@page_types);
                        $form->title(sprintf(gettext("creating %s"), pagetitle($page)));
                        $form->field(name => "type", type => 'select',
                                options => \@page_types);
                        $form->title(sprintf(gettext("creating %s"), pagetitle($page)));

+                       

                }
                elsif ($form->field("do") eq "edit") {
                }
                elsif ($form->field("do") eq "edit") {

-                       page_locked($page, $session);
+                       check_canedit($page, $q, $session);

                        if (! defined $form->field('editcontent') || 
                            ! length $form->field('editcontent')) {
                                my $content="";
                        if (! defined $form->field('editcontent') || 
                            ! length $form->field('editcontent')) {
                                my $content="";


@@ -464,18 +505,71 @@ sub cgi_editpage ($$) { #{{{
                        $form->title(sprintf(gettext("editing %s"), pagetitle($page)));
                }
                
                        $form->title(sprintf(gettext("editing %s"), pagetitle($page)));
                }
                

-               print $form->render(submit => \@buttons);
+               showform($form, \@buttons, $session, $q);
+               saveindex();

        }
        else {
                # save page
        }
        else {
                # save page

-               page_locked($page, $session);
+               check_canedit($page, $q, $session);
+
+               my $exists=-e "$config{srcdir}/$file";
+
+               if ($form->field("do") ne "create" && ! $exists &&
+                   ! eval { srcfile($file) }) {
+                       $form->tmpl_param("page_gone", 1);
+                       $form->field(name => "do", value => "create", force => 1);
+                       $form->tmpl_param("page_select", 0);
+                       $form->field(name => "page", type => 'hidden');
+                       $form->field(name => "type", type => 'hidden');
+                       $form->title(sprintf(gettext("editing %s"), $page));
+                       showform($form, \@buttons, $session, $q);
+                       return;
+               }
+               elsif ($form->field("do") eq "create" && $exists) {
+                       $form->tmpl_param("creation_conflict", 1);
+                       $form->field(name => "do", value => "edit", force => 1);
+                       $form->tmpl_param("page_select", 0);
+                       $form->field(name => "page", type => 'hidden');
+                       $form->field(name => "type", type => 'hidden');
+                       $form->title(sprintf(gettext("editing %s"), $page));
+                       $form->field("editcontent", 
+                               value => readfile("$config{srcdir}/$file").
+                                        "\n\n\n".$form->field("editcontent"),
+                               force => 1);
+                       showform($form, \@buttons, $session, $q);
+                       return;
+               }

                
                my $content=$form->field('editcontent');
                
                my $content=$form->field('editcontent');

-
+               run_hooks(editcontent => sub {
+                       $content=shift->(
+                               content => $content,
+                               page => $page,
+                               cgi => $q,
+                               session => $session,
+                       );
+               });

                $content=~s/\r\n/\n/g;
                $content=~s/\r/\n/g;
                $content=~s/\r\n/\n/g;
                $content=~s/\r/\n/g;

-               writefile($file, $config{srcdir}, $content);
+
+               $config{cgi}=0; # avoid cgi error message
+               eval { writefile($file, $config{srcdir}, $content) };
+               $config{cgi}=1;
+               if ($@) {
+                       $form->field(name => "rcsinfo", value => rcs_prepedit($file),
+                               force => 1);
+                       $form->tmpl_param("failed_save", 1);
+                       $form->tmpl_param("error_message", $@);
+                       $form->field("editcontent", value => $content, force => 1);
+                       $form->tmpl_param("page_select", 0);
+                       $form->field(name => "page", type => 'hidden');
+                       $form->field(name => "type", type => 'hidden');
+                       $form->title(sprintf(gettext("editing %s"), $page));
+                       showform($form, \@buttons, $session, $q);
+                       return;
+               }

                
                

+               my $conflict;

                if ($config{rcs}) {
                        my $message="";
                        if (defined $form->field('comments') &&
                if ($config{rcs}) {
                        my $message="";
                        if (defined $form->field('comments') &&


@@ -483,41 +577,46 @@ sub cgi_editpage ($$) { #{{{
                                $message=$form->field('comments');
                        }
                        
                                $message=$form->field('comments');
                        }
                        

-                       if ($newfile) {
+                       if (! $exists) {

                                rcs_add($file);
                        }
                                rcs_add($file);
                        }

-                       # prevent deadlock with post-commit hook
-                       unlockwiki();
-                       # presumably the commit will trigger an update
-                       # of the wiki
-                       my $conflict=rcs_commit($file, $message,
+
+                       # Prevent deadlock with post-commit hook by
+                       # signaling to it that it should not try to
+                       # do anything (except send commit mails).
+                       disable_commit_hook();
+                       $conflict=rcs_commit($file, $message,

                                $form->field("rcsinfo"),
                                $session->param("name"), $ENV{REMOTE_ADDR});
                                $form->field("rcsinfo"),
                                $session->param("name"), $ENV{REMOTE_ADDR});

+                       enable_commit_hook();
+                       rcs_update();
+               }

                
                

-                       if (defined $conflict) {
-                               $form->field(name => "rcsinfo", value => rcs_prepedit($file),
-                                       force => 1);
-                               $form->tmpl_param("page_conflict", 1);
-                               $form->field("editcontent", value => $conflict, force => 1);
-                               $form->field(name => "comments", value => $form->field('comments'), force => 1);
-                               $form->field("do", "edit)");
-                               $form->tmpl_param("page_select", 0);
-                               $form->field(name => "page", type => 'hidden');
-                               $form->field(name => "type", type => 'hidden');
-                               $form->title(sprintf(gettext("editing %s"), $page));
-                               print $form->render(submit => \@buttons);
-                               return;
-                       }
+               # Refresh even if there was a conflict, since other changes
+               # may have been committed while the post-commit hook was
+               # disabled.
+               require IkiWiki::Render;
+               refresh();
+               saveindex();
+
+               if (defined $conflict) {
+                       $form->field(name => "rcsinfo", value => rcs_prepedit($file),
+                               force => 1);
+                       $form->tmpl_param("page_conflict", 1);
+                       $form->field("editcontent", value => $conflict, force => 1);
+                       $form->field("do", "edit", force => 1);
+                       $form->tmpl_param("page_select", 0);
+                       $form->field(name => "page", type => 'hidden');
+                       $form->field(name => "type", type => 'hidden');
+                       $form->title(sprintf(gettext("editing %s"), $page));
+                       showform($form, \@buttons, $session, $q);
+                       return;

                }
                else {
                }
                else {

-                       require IkiWiki::Render;
-                       refresh();
-                       saveindex();
+                       # The trailing question mark tries to avoid broken
+                       # caches and get the most recent version of the page.
+                       redirect($q, "$config{url}/".htmlpage($page)."?updated");

                }
                }

-               
-               # The trailing question mark tries to avoid broken
-               # caches and get the most recent version of the page.
-               redirect($q, "$config{url}/".htmlpage($page)."?updated");

        }
 } #}}}
 
        }
 } #}}}
 


@@ -542,7 +641,7 @@ sub cgi_savesession ($) { #{{{
        my $oldmask=umask(077);
        $session->flush;
        umask($oldmask);
        my $oldmask=umask(077);
        $session->flush;
        umask($oldmask);

-}
+} #}}}

 
 sub cgi (;$$) { #{{{
        my $q=shift;
 
 sub cgi (;$$) { #{{{
        my $q=shift;


@@ -573,9 +672,6 @@ sub cgi (;$$) { #{{{
                cgi_recentchanges($q);
                return;
        }
                cgi_recentchanges($q);
                return;
        }

-       elsif ($do eq 'hyperestraier') {
-               cgi_hyperestraier();
-       }

 
        # Need to lock the wiki before getting a session.
        lockwiki();
 
        # Need to lock the wiki before getting a session.
        lockwiki();


@@ -597,55 +693,37 @@ sub cgi (;$$) { #{{{
                                        email => "",
                                        password => "",
                                        regdate => time,
                                        email => "",
                                        password => "",
                                        regdate => time,

-                               });
+                               }) || error("failed adding user");

                        }
                }
        }
                        }
                }
        }

+       
+       if (defined $session->param("name") &&
+           userinfo_get($session->param("name"), "banned")) {
+               print $q->header(-status => "403 Forbidden");
+               $session->delete();
+               print gettext("You are banned.");
+               cgi_savesession($session);
+       }

 
 

-       # Everything below this point needs the user to be signed in.
-       if (((! $config{anonok} || $do eq 'prefs') &&
-            (! defined $session->param("name") ||
-            ! userinfo_get($session->param("name"), "regdate")))
-            || $do eq 'signin') {
-               if ($do ne 'signin' && ! defined $session->param("postsignin")) {
-                       $session->param(postsignin => $ENV{QUERY_STRING});
-               }
+       run_hooks(sessioncgi => sub { shift->($q, $session) });
+
+       if ($do eq 'signin') {

                cgi_signin($q, $session);
                cgi_savesession($session);
                cgi_signin($q, $session);
                cgi_savesession($session);

-               return;

        }
        elsif (defined $session->param("postsignin")) {
                cgi_postsignin($q, $session);
        }
        }
        elsif (defined $session->param("postsignin")) {
                cgi_postsignin($q, $session);
        }

-
-       if (defined $session->param("name") && userinfo_get($session->param("name"), "banned")) {
-               print $q->header(-status => "403 Forbidden");
-               $session->delete();
-               print gettext("You are banned.");
-               cgi_savesession($session);
-               exit;
-       }
-       
-       if ($do eq 'create' || $do eq 'edit') {
-               cgi_editpage($q, $session);
-       }

        elsif ($do eq 'prefs') {
                cgi_prefs($q, $session);
        }
        elsif ($do eq 'prefs') {
                cgi_prefs($q, $session);
        }

-       elsif ($do eq 'blog') {
-               my $page=titlepage(decode_utf8($q->param('title')));
-               # if the page already exists, munge it to be unique
-               my $from=$q->param('from');
-               my $add="";
-               while (exists $pagecase{lc "$from/$page$add"}) {
-                       $add=1 unless length $add;
-                       $add++;
-               }
-               $q->param('page', $page.$add);
-               # now run same as create
-               $q->param('do', 'create');
+       elsif ($do eq 'create' || $do eq 'edit') {

                cgi_editpage($q, $session);
        }
                cgi_editpage($q, $session);
        }

+       elsif ($do eq 'postsignin') {
+               error(gettext("login failed, perhaps you need to turn on cookies?"));
+       }

        else {
                error("unknown do parameter");
        }
        else {
                error("unknown do parameter");
        }


@@ -665,13 +743,17 @@ sub userlink ($) { #{{{
                if ($display !~ /\[/) {
                        $display=~s/^(.*?)\.([^.]+\.[a-z]+)$/$1 [$2]/;
                }
                if ($display !~ /\[/) {
                        $display=~s/^(.*?)\.([^.]+\.[a-z]+)$/$1 [$2]/;
                }

+               # Convert "http://somehost.com/user" to "user [somehost.com]".
+               if ($display !~ /\[/) {
+                       $display=~s/^https?:\/\/(.+)\/([^\/]+)$/$2 [$1]/;
+               }

                $display=~s!^https?://!!; # make sure this is removed
                return "<a href=\"$user\">".escapeHTML($display)."</a>";
        }
        else {
                return htmllink("", "", escapeHTML(
                        length $config{userdir} ? $config{userdir}."/".$user : $user
                $display=~s!^https?://!!; # make sure this is removed
                return "<a href=\"$user\">".escapeHTML($display)."</a>";
        }
        else {
                return htmllink("", "", escapeHTML(
                        length $config{userdir} ? $config{userdir}."/".$user : $user

-               ), 1);
+               ), noimageinline => 1);

        }
 } #}}}
 
        }
 } #}}}