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web commit from 129.27.232.128: poll vote
[git.ikiwiki.info.git] / IkiWiki / CGI.pm
diff --git a/IkiWiki/CGI.pm b/IkiWiki/CGI.pm
index f360b6778d9c78c1a227d755aa6b4f03e0d76018..3e324ae1cbdcc834e467b131114006d17a07ed44 100644 (file)
--- a/IkiWiki/CGI.pm
+++ b/IkiWiki/CGI.pm
@@ -2,45 +2,111 @@
 
 use warnings;
 use strict;
 
 use warnings;
 use strict;
+use IkiWiki;
+use IkiWiki::UserInfo;
+use open qw{:utf8 :std};
+use Encode;
 
 package IkiWiki;
 
 
 package IkiWiki;
 
+sub printheader ($) { #{{{
+       my $session=shift;
+       
+       if ($config{sslcookie}) {
+               print $session->header(-charset => 'utf-8',
+                       -cookie => $session->cookie(-secure => 1));
+       } else {
+               print $session->header(-charset => 'utf-8');
+       }
+
+} #}}}
+
+sub redirect ($$) { #{{{
+       my $q=shift;
+       my $url=shift;
+       if (! $config{w3mmode}) {
+               print $q->redirect($url);
+       }
+       else {
+               print "Content-type: text/plain\n";
+               print "W3m-control: GOTO $url\n\n";
+       }
+} #}}}
+
 sub page_locked ($$;$) { #{{{
        my $page=shift;
        my $session=shift;
        my $nonfatal=shift;
        
        my $user=$session->param("name");
 sub page_locked ($$;$) { #{{{
        my $page=shift;
        my $session=shift;
        my $nonfatal=shift;
        
        my $user=$session->param("name");
-       return if length $user && is_admin($user);
+       return if defined $user && is_admin($user);
 
        foreach my $admin (@{$config{adminuser}}) {
                my $locked_pages=userinfo_get($admin, "locked_pages");
 
        foreach my $admin (@{$config{adminuser}}) {
                my $locked_pages=userinfo_get($admin, "locked_pages");
-               if (globlist_match($page, userinfo_get($admin, "locked_pages"))) {
+               if (pagespec_match($page, userinfo_get($admin, "locked_pages"))) {
                        return 1 if $nonfatal;
                        return 1 if $nonfatal;
-                       error(htmllink("", $page, 1)." is locked by ".
-                             htmllink("", $admin, 1)." and cannot be edited.");
+                       error(htmllink("", "", $page, 1)." is locked by ".
+                             userlink($admin)." and cannot be edited.");
                }
        }
 
        return 0;
 } #}}}
 
                }
        }
 
        return 0;
 } #}}}
 
+sub decode_form_utf8 ($) { #{{{
+       my $form = shift;
+       foreach my $f ($form->field) {
+               next if Encode::is_utf8(scalar $form->field($f));
+               $form->field(name  => $f,
+                            value => decode_utf8($form->field($f)),
+                            force => 1,
+                           );
+       }
+} #}}}
+
 sub cgi_recentchanges ($) { #{{{
        my $q=shift;
        
 sub cgi_recentchanges ($) { #{{{
        my $q=shift;
        
-       unlockwiki();
+       # Optimisation: building recentchanges means calculating lots of
+       # links. Memoizing htmllink speeds it up a lot (can't be memoized
+       # during page builds as the return values may change, but they
+       # won't here.)
+       eval q{use Memoize};
+       error($@) if $@;
+       memoize("htmllink");
 
 
-       my $template=HTML::Template->new(
-               filename => "$config{templatedir}/recentchanges.tmpl"
-       );
+       eval q{use Time::Duration};
+       error($@) if $@;
+
+       my $changelog=[rcs_recentchanges(100)];
+       foreach my $change (@$changelog) {
+               $change->{when} = concise(ago($change->{when}));
+
+               $change->{user} = userlink($change->{user});
+
+               my $is_excess = exists $change->{pages}[10]; # limit pages to first 10
+               delete @{$change->{pages}}[10 .. @{$change->{pages}}] if $is_excess;
+               $change->{pages} = [
+                       map {
+                               $_->{link} = htmllink("", "", $_->{page}, 1);
+                               $_;
+                       } @{$change->{pages}}
+               ];
+               push @{$change->{pages}}, { link => '...' } if $is_excess;
+       }
+
+       my $template=template("recentchanges.tmpl"); 
        $template->param(
                title => "RecentChanges",
                indexlink => indexlink(),
                wikiname => $config{wikiname},
        $template->param(
                title => "RecentChanges",
                indexlink => indexlink(),
                wikiname => $config{wikiname},
-               changelog => [rcs_recentchanges(100)],
-               styleurl => styleurl(),
+               changelog => $changelog,
+               baseurl => baseurl(),
        );
        );
-       print $q->header, $template->output;
+       run_hooks(pagetemplate => sub {
+               shift->(page => "", destpage => "", template => $template);
+       });
+       print $q->header(-charset => 'utf-8'), $template->output;
 } #}}}
 
 sub cgi_signin ($$) { #{{{
 } #}}}
 
 sub cgi_signin ($$) { #{{{
@@ -48,164 +114,65 @@ sub cgi_signin ($$) { #{{{
        my $session=shift;
 
        eval q{use CGI::FormBuilder};
        my $session=shift;
 
        eval q{use CGI::FormBuilder};
+       error($@) if $@;
        my $form = CGI::FormBuilder->new(
                title => "signin",
        my $form = CGI::FormBuilder->new(
                title => "signin",
-               fields => [qw(do title page subpage from name password confirm_password email)],
                header => 1,
                header => 1,
+               charset => "utf-8",
                method => 'POST',
                method => 'POST',
-               validate => {
-                       confirm_password => {
-                               perl => q{eq $form->field("password")},
-                       },
-                       email => 'EMAIL',
-               },
                required => 'NONE',
                javascript => 0,
                params => $q,
                required => 'NONE',
                javascript => 0,
                params => $q,
-               action => $q->request_uri,
+               action => $config{cgiurl},
                header => 0,
                template => (-e "$config{templatedir}/signin.tmpl" ?
                header => 0,
                template => (-e "$config{templatedir}/signin.tmpl" ?
-                             "$config{templatedir}/signin.tmpl" : ""),
-               stylesheet => styleurl(),
+                            {template_params("signin.tmpl")} : ""),
+               stylesheet => baseurl()."style.css",
        );
        );
+       my $buttons=["Login"];
        
        
-       $form->field(name => "name", required => 0);
        $form->field(name => "do", type => "hidden");
        $form->field(name => "do", type => "hidden");
-       $form->field(name => "page", type => "hidden");
-       $form->field(name => "title", type => "hidden");
-       $form->field(name => "from", type => "hidden");
-       $form->field(name => "subpage", type => "hidden");
-       $form->field(name => "password", type => "password", required => 0);
-       $form->field(name => "confirm_password", type => "password", required => 0);
-       $form->field(name => "email", required => 0);
-       if ($q->param("do") ne "signin") {
+       
+       if ($q->param("do") ne "signin" && !$form->submitted) {
                $form->text("You need to log in first.");
        }
        
                $form->text("You need to log in first.");
        }
        
-       if ($form->submitted) {
-               # Set required fields based on how form was submitted.
-               my %required=(
-                       "Login" => [qw(name password)],
-                       "Register" => [qw(name password confirm_password email)],
-                       "Mail Password" => [qw(name)],
-               );
-               foreach my $opt (@{$required{$form->submitted}}) {
-                       $form->field(name => $opt, required => 1);
-               }
+       run_hooks(formbuilder_setup => sub {
+               shift->(form => $form, cgi => $q, session => $session);
+       });
        
        
-               # Validate password differently depending on how
-               # form was submitted.
-               if ($form->submitted eq 'Login') {
-                       $form->field(
-                               name => "password",
-                               validate => sub {
-                                       length $form->field("name") &&
-                                       shift eq userinfo_get($form->field("name"), 'password');
-                               },
-                       );
-                       $form->field(name => "name", validate => '/^\w+$/');
-               }
-               else {
-                       $form->field(name => "password", validate => 'VALUE');
-               }
-               # And make sure the entered name exists when logging
-               # in or sending email, and does not when registering.
-               if ($form->submitted eq 'Register') {
-                       $form->field(
-                               name => "name",
-                               validate => sub {
-                                       my $name=shift;
-                                       length $name &&
-                                       ! userinfo_get($name, "regdate");
-                               },
-                       );
-               }
-               else {
-                       $form->field(
-                               name => "name",
-                               validate => sub {
-                                       my $name=shift;
-                                       length $name &&
-                                       userinfo_get($name, "regdate");
-                               },
-                       );
-               }
+       decode_form_utf8($form);
+
+       if (exists $hooks{formbuilder}) {
+               run_hooks(formbuilder => sub {
+                       shift->(form => $form, cgi => $q, session => $session,
+                               buttons => $buttons);
+               });
        }
        else {
        }
        else {
-               # First time settings.
-               $form->field(name => "name", comment => "use FirstnameLastName");
-               $form->field(name => "confirm_password", comment => "(only needed");
-               $form->field(name => "email",            comment => "for registration)");
-               if ($session->param("name")) {
-                       $form->field(name => "name", value => $session->param("name"));
+               if ($form->submitted) {
+                       $form->validate;
                }
                }
+               printheader($session);
+               print misctemplate($form->title, $form->render(submit => $buttons));
        }
        }
+} #}}}
 
 
-       if ($form->submitted && $form->validate) {
-               if ($form->submitted eq 'Login') {
-                       $session->param("name", $form->field("name"));
-                       if (defined $form->field("do") && 
-                           $form->field("do") ne 'signin') {
-                               print $q->redirect(cgiurl(
-                                       do => $form->field("do"),
-                                       page => $form->field("page"),
-                                       title => $form->field("title"),
-                                       subpage => $form->field("subpage"),
-                                       from => $form->field("from"),
-                               ));
-                       }
-                       else {
-                               print $q->redirect($config{url});
-                       }
-               }
-               elsif ($form->submitted eq 'Register') {
-                       my $user_name=$form->field('name');
-                       if (userinfo_setall($user_name, {
-                                          'email' => $form->field('email'),
-                                          'password' => $form->field('password'),
-                                          'regdate' => time
-                                        })) {
-                               $form->field(name => "confirm_password", type => "hidden");
-                               $form->field(name => "email", type => "hidden");
-                               $form->text("Registration successful. Now you can Login.");
-                               print $session->header();
-                               print misctemplate($form->title, $form->render(submit => ["Login"]));
-                       }
-                       else {
-                               error("Error saving registration.");
-                       }
-               }
-               elsif ($form->submitted eq 'Mail Password') {
-                       my $user_name=$form->field("name");
-                       my $template=HTML::Template->new(
-                               filename => "$config{templatedir}/passwordmail.tmpl"
-                       );
-                       $template->param(
-                               user_name => $user_name,
-                               user_password => userinfo_get($user_name, "password"),
-                               wikiurl => $config{url},
-                               wikiname => $config{wikiname},
-                               REMOTE_ADDR => $ENV{REMOTE_ADDR},
-                       );
-                       
-                       eval q{use Mail::Sendmail};
-                       my ($fromhost) = $config{cgiurl} =~ m!/([^/]+)!;
-                       sendmail(
-                               To => userinfo_get($user_name, "email"),
-                               From => "$config{wikiname} admin <".(getpwuid($>))[0]."@".$fromhost.">",
-                               Subject => "$config{wikiname} information",
-                               Message => $template->output,
-                       ) or error("Failed to send mail");
-                       
-                       $form->text("Your password has been emailed to you.");
-                       $form->field(name => "name", required => 0);
-                       print $session->header();
-                       print misctemplate($form->title, $form->render(submit => ["Login", "Register", "Mail Password"]));
-               }
+sub cgi_postsignin ($$) { #{{{
+       my $q=shift;
+       my $session=shift;
+
+       # Continue with whatever was being done before the signin process.
+       if (defined $q->param("do") && $q->param("do") ne "signin" &&
+           defined $session->param("postsignin")) {
+               my $postsignin=CGI->new($session->param("postsignin"));
+               $session->clear("postsignin");
+               cgi($postsignin, $session);
+               cgi_savesession($session);
+               exit;
        }
        else {
        }
        else {
-               print $session->header();
-               print misctemplate($form->title, $form->render(submit => ["Login", "Register", "Mail Password"]));
+               redirect($q, $config{url});
        }
 } #}}}
 
        }
 } #}}}
 
@@ -214,103 +181,163 @@ sub cgi_prefs ($$) { #{{{
        my $session=shift;
 
        eval q{use CGI::FormBuilder};
        my $session=shift;
 
        eval q{use CGI::FormBuilder};
+       error($@) if $@;
        my $form = CGI::FormBuilder->new(
                title => "preferences",
        my $form = CGI::FormBuilder->new(
                title => "preferences",
-               fields => [qw(do name password confirm_password email locked_pages)],
                header => 0,
                header => 0,
+               charset => "utf-8",
                method => 'POST',
                validate => {
                method => 'POST',
                validate => {
-                       confirm_password => {
-                               perl => q{eq $form->field("password")},
-                       },
                        email => 'EMAIL',
                },
                required => 'NONE',
                javascript => 0,
                params => $q,
                        email => 'EMAIL',
                },
                required => 'NONE',
                javascript => 0,
                params => $q,
-               action => $q->request_uri,
+               action => $config{cgiurl},
                template => (-e "$config{templatedir}/prefs.tmpl" ?
                template => (-e "$config{templatedir}/prefs.tmpl" ?
-                             "$config{templatedir}/prefs.tmpl" : ""),
-               stylesheet => styleurl(),
+                            {template_params("prefs.tmpl")} : ""),
+               stylesheet => baseurl()."style.css",
        );
        );
-       my @buttons=("Save Preferences", "Logout", "Cancel");
+       my $buttons=["Save Preferences", "Logout", "Cancel"];
+
+       run_hooks(formbuilder_setup => sub {
+               shift->(form => $form, cgi => $q, session => $session);
+       });
        
        
-       my $user_name=$session->param("name");
        $form->field(name => "do", type => "hidden");
        $form->field(name => "do", type => "hidden");
-       $form->field(name => "name", disabled => 1,
-               value => $user_name, force => 1);
-       $form->field(name => "password", type => "password");
-       $form->field(name => "confirm_password", type => "password");
+       $form->field(name => "email", size => 50);
+       $form->field(name => "subscriptions", size => 50,
+               comment => "(".htmllink("", "", "PageSpec", 1).")");
        $form->field(name => "locked_pages", size => 50,
        $form->field(name => "locked_pages", size => 50,
-               comment => "(".htmllink("", "GlobList", 1).")");
+               comment => "(".htmllink("", "", "PageSpec", 1).")");
+       $form->field(name => "banned_users", size => 50);
        
        
+       my $user_name=$session->param("name");
        if (! is_admin($user_name)) {
                $form->field(name => "locked_pages", type => "hidden");
        if (! is_admin($user_name)) {
                $form->field(name => "locked_pages", type => "hidden");
+               $form->field(name => "banned_users", type => "hidden");
        }
        }
-       
+
        if (! $form->submitted) {
                $form->field(name => "email", force => 1,
                        value => userinfo_get($user_name, "email"));
        if (! $form->submitted) {
                $form->field(name => "email", force => 1,
                        value => userinfo_get($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"));
                $form->field(name => "locked_pages", force => 1,
                        value => userinfo_get($user_name, "locked_pages"));
+               if (is_admin($user_name)) {
+                       $form->field(name => "banned_users", force => 1,
+                               value => join(" ", get_banned_users()));
+               }
        }
        
        }
        
+       decode_form_utf8($form);
+       
        if ($form->submitted eq 'Logout') {
                $session->delete();
        if ($form->submitted eq 'Logout') {
                $session->delete();
-               print $q->redirect($config{url});
+               redirect($q, $config{url});
                return;
        }
        elsif ($form->submitted eq 'Cancel') {
                return;
        }
        elsif ($form->submitted eq 'Cancel') {
-               print $q->redirect($config{url});
+               redirect($q, $config{url});
                return;
        }
        elsif ($form->submitted eq "Save Preferences" && $form->validate) {
                return;
        }
        elsif ($form->submitted eq "Save Preferences" && $form->validate) {
-               foreach my $field (qw(password email locked_pages)) {
-                       if (length $form->field($field)) {
+               foreach my $field (qw(email subscriptions locked_pages)) {
+                       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($_) }
+                                       split(' ', $form->field("banned_users")));
+               }
                $form->text("Preferences saved.");
        }
        
                $form->text("Preferences saved.");
        }
        
-       print $session->header();
-       print misctemplate($form->title, $form->render(submit => \@buttons));
+       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));
+       }
 } #}}}
 
 sub cgi_editpage ($$) { #{{{
        my $q=shift;
        my $session=shift;
 
 } #}}}
 
 sub cgi_editpage ($$) { #{{{
        my $q=shift;
        my $session=shift;
 
-       eval q{use CGI::FormBuilder};
+       my @fields=qw(do rcsinfo subpage from page type editcontent comments);
+       my @buttons=("Save Page", "Preview", "Cancel");
+       
+       eval q{use CGI::FormBuilder; use CGI::FormBuilder::Template::HTML};
+       error($@) if $@;
+       my $renderer=CGI::FormBuilder::Template::HTML->new(
+               fields => \@fields,
+               template_params("editpage.tmpl"),
+       );
+       run_hooks(pagetemplate => sub {
+               shift->(page => "", destpage => "", template => $renderer->engine);
+       });
        my $form = CGI::FormBuilder->new(
        my $form = CGI::FormBuilder->new(
-               fields => [qw(do rcsinfo subpage from page content comments)],
+               fields => \@fields,
                header => 1,
                header => 1,
+               charset => "utf-8",
                method => 'POST',
                validate => {
                method => 'POST',
                validate => {
-                       content => '/.+/',
+                       editcontent => '/.+/',
                },
                },
-               required => [qw{content}],
+               required => [qw{editcontent}],
                javascript => 0,
                params => $q,
                javascript => 0,
                params => $q,
-               action => $q->request_uri,
+               action => $config{cgiurl},
                table => 0,
                table => 0,
-               template => "$config{templatedir}/editpage.tmpl"
+               template => $renderer,
        );
        );
-       my @buttons=("Save Page", "Preview", "Cancel");
        
        
-       # This untaint is safe because titlepage removes any problimatic
+       run_hooks(formbuilder_setup => sub {
+               shift->(form => $form, cgi => $q, session => $session);
+       });
+       
+       decode_form_utf8($form);
+       
+       # This untaint is safe because titlepage removes any problematic
        # characters.
        # characters.
-       my ($page)=titlepage(possibly_foolish_untaint(lc($form->param('page'))));
+       my ($page)=$form->field('page');
+       $page=titlepage(possibly_foolish_untaint($page));
        if (! defined $page || ! length $page ||
            $page=~/$config{wiki_file_prune_regexp}/ || $page=~/^\//) {
                error("bad page name");
        }
        if (! defined $page || ! length $page ||
            $page=~/$config{wiki_file_prune_regexp}/ || $page=~/^\//) {
                error("bad page name");
        }
-       $page=lc($page);
        
        
-       my $file=$page.$config{default_pageext};
-       if (exists $pagesources{lc($page)}) {
-               $file=$pagesources{lc($page)};
+       my $from;
+       if (defined $form->field('from')) {
+               ($from)=$form->field('from')=~/$config{wiki_file_regexp}/;
        }
        }
+       
+       my $file;
+       my $type;
+       if (exists $pagesources{$page}) {
+               $file=$pagesources{$page};
+               $type=pagetype($file);
+       }
+       else {
+               $type=$form->param('type');
+               if (defined $type && length $type && $hooks{htmlize}{$type}) {
+                       $type=possibly_foolish_untaint($type);
+               }
+               elsif (defined $from) {
+                       # favor the type of linking page
+                       $type=pagetype($pagesources{$from});
+               }
+               $type=$config{default_pageext} unless defined $type;
+               $file=$page.".".$type;
+       }
+
        my $newfile=0;
        if (! -e "$config{srcdir}/$file") {
                $newfile=1;
        my $newfile=0;
        if (! -e "$config{srcdir}/$file") {
                $newfile=1;
@@ -320,29 +347,46 @@ sub cgi_editpage ($$) { #{{{
        $form->field(name => "from", type => 'hidden');
        $form->field(name => "rcsinfo", type => 'hidden');
        $form->field(name => "subpage", 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 => $page, force => 1);
+       $form->field(name => "type", value => $type, force => 1);
        $form->field(name => "comments", type => "text", size => 80);
        $form->field(name => "comments", type => "text", size => 80);
-       $form->field(name => "content", type => "textarea", rows => 20,
+       $form->field(name => "editcontent", type => "textarea", rows => 20,
                cols => 80);
        $form->tmpl_param("can_commit", $config{rcs});
        $form->tmpl_param("indexlink", indexlink());
        $form->tmpl_param("helponformattinglink",
                cols => 80);
        $form->tmpl_param("can_commit", $config{rcs});
        $form->tmpl_param("indexlink", indexlink());
        $form->tmpl_param("helponformattinglink",
-               htmllink("", "HelpOnFormatting", 1));
-       $form->tmpl_param("styleurl", styleurl());
+               htmllink("", "", "HelpOnFormatting", 1));
+       $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) {
                $form->field(name => "rcsinfo", value => rcs_prepedit($file),
                        force => 1);
        }
        
        if ($form->submitted eq "Cancel") {
-               print $q->redirect("$config{url}/".htmlpage($page));
+               if ($newfile && defined $from) {
+                       redirect($q, "$config{url}/".htmlpage($from));
+               }
+               elsif ($newfile) {
+                       redirect($q, $config{url});
+               }
+               else {
+                       redirect($q, "$config{url}/".htmlpage($page));
+               }
                return;
        }
        elsif ($form->submitted eq "Preview") {
                return;
        }
        elsif ($form->submitted eq "Preview") {
-               require IkiWiki::Render;
+               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!
                $form->tmpl_param("page_preview",
                $form->tmpl_param("page_preview",
-                       htmlize($config{default_pageext},
-                               linkify($form->field('content'), $page)));
+                       htmlize($page, $type,
+                       linkify($page, "",
+                       preprocess($page, $page,
+                       filter($page, $content)))));
        }
        else {
                $form->tmpl_param("page_preview", "");
        }
        else {
                $form->tmpl_param("page_preview", "");
@@ -352,18 +396,10 @@ sub cgi_editpage ($$) { #{{{
        if (! $form->submitted || $form->submitted eq "Preview" || 
            ! $form->validate) {
                if ($form->field("do") eq "create") {
        if (! $form->submitted || $form->submitted eq "Preview" || 
            ! $form->validate) {
                if ($form->field("do") eq "create") {
-                       if (exists $pagesources{lc($page)}) {
-                               # hmm, someone else made the page in the
-                               # meantime?
-                               print $q->redirect("$config{url}/".htmlpage($page));
-                               return;
-                       }
-                       
                        my @page_locs;
                        my $best_loc;
                        my @page_locs;
                        my $best_loc;
-                       my ($from)=$form->param('from')=~/$config{wiki_file_regexp}/;
                        if (! defined $from || ! length $from ||
                        if (! defined $from || ! length $from ||
-                           $from ne $form->param('from') ||
+                           $from ne $form->field('from') ||
                            $from=~/$config{wiki_file_prune_regexp}/ ||
                            $from=~/^\// ||
                            $form->submitted eq "Preview") {
                            $from=~/$config{wiki_file_prune_regexp}/ ||
                            $from=~/^\// ||
                            $form->submitted eq "Preview") {
@@ -371,9 +407,9 @@ sub cgi_editpage ($$) { #{{{
                        }
                        else {
                                my $dir=$from."/";
                        }
                        else {
                                my $dir=$from."/";
-                               $dir=~s![^/]+/$!!;
+                               $dir=~s![^/]+/+$!!;
                                
                                
-                               if ((defined $form->param('subpage') && length $form->param('subpage')) ||
+                               if ((defined $form->field('subpage') && length $form->field('subpage')) ||
                                    $page eq 'discussion') {
                                        $best_loc="$from/$page";
                                }
                                    $page eq 'discussion') {
                                        $best_loc="$from/$page";
                                }
@@ -384,35 +420,50 @@ sub cgi_editpage ($$) { #{{{
                                push @page_locs, $dir.$page;
                                push @page_locs, "$from/$page";
                                while (length $dir) {
                                push @page_locs, $dir.$page;
                                push @page_locs, "$from/$page";
                                while (length $dir) {
-                                       $dir=~s![^/]+/$!!;
+                                       $dir=~s![^/]+/+$!!;
                                        push @page_locs, $dir.$page;
                                }
                                        push @page_locs, $dir.$page;
                                }
-
-                               @page_locs = grep {
-                                       ! exists $pagesources{lc($_)} &&
-                                       ! page_locked($_, $session, 1)
-                               } @page_locs;
                        }
 
                        }
 
+                       @page_locs = grep {
+                               ! exists $pagecase{lc $_} &&
+                               ! page_locked($_, $session, 1)
+                       } @page_locs;
+                       
+                       if (! @page_locs) {
+                               # hmm, someone else made the page in the
+                               # meantime?
+                               redirect($q, "$config{url}/".htmlpage($page));
+                               return;
+                       }
+                       
+                       my @page_types;
+                       if (exists $hooks{htmlize}) {
+                               @page_types=keys %{$hooks{htmlize}};
+                       }
+                       
                        $form->tmpl_param("page_select", 1);
                        $form->field(name => "page", type => 'select',
                                options => \@page_locs, value => $best_loc);
                        $form->tmpl_param("page_select", 1);
                        $form->field(name => "page", type => 'select',
                                options => \@page_locs, value => $best_loc);
+                       $form->field(name => "type", type => 'select',
+                               options => \@page_types);
                        $form->title("creating ".pagetitle($page));
                }
                elsif ($form->field("do") eq "edit") {
                        page_locked($page, $session);
                        $form->title("creating ".pagetitle($page));
                }
                elsif ($form->field("do") eq "edit") {
                        page_locked($page, $session);
-                       if (! defined $form->field('content') || 
-                           ! length $form->field('content')) {
+                       if (! defined $form->field('editcontent') || 
+                           ! length $form->field('editcontent')) {
                                my $content="";
                                my $content="";
-                               if (exists $pagesources{lc($page)}) {
-                                       $content=readfile(srcfile($pagesources{lc($page)}));
+                               if (exists $pagesources{$page}) {
+                                       $content=readfile(srcfile($pagesources{$page}));
                                        $content=~s/\n/\r\n/g;
                                }
                                        $content=~s/\n/\r\n/g;
                                }
-                               $form->field(name => "content", value => $content,
+                               $form->field(name => "editcontent", value => $content,
                                        force => 1);
                        }
                        $form->tmpl_param("page_select", 0);
                        $form->field(name => "page", type => 'hidden');
                                        force => 1);
                        }
                        $form->tmpl_param("page_select", 0);
                        $form->field(name => "page", type => 'hidden');
+                       $form->field(name => "type", type => 'hidden');
                        $form->title("editing ".pagetitle($page));
                }
                
                        $form->title("editing ".pagetitle($page));
                }
                
@@ -422,24 +473,19 @@ sub cgi_editpage ($$) { #{{{
                # save page
                page_locked($page, $session);
                
                # save page
                page_locked($page, $session);
                
-               my $content=$form->field('content');
+               my $content=$form->field('editcontent');
+
                $content=~s/\r\n/\n/g;
                $content=~s/\r/\n/g;
                writefile($file, $config{srcdir}, $content);
                
                $content=~s/\r\n/\n/g;
                $content=~s/\r/\n/g;
                writefile($file, $config{srcdir}, $content);
                
-               my $message="web commit ";
-               if (length $session->param("name")) {
-                       $message.="by ".$session->param("name");
-               }
-               else {
-                       $message.="from $ENV{REMOTE_ADDR}";
-               }
-               if (defined $form->field('comments') &&
-                   length $form->field('comments')) {
-                       $message.=": ".$form->field('comments');
-               }
-               
                if ($config{rcs}) {
                if ($config{rcs}) {
+                       my $message="";
+                       if (defined $form->field('comments') &&
+                           length $form->field('comments')) {
+                               $message=$form->field('comments');
+                       }
+                       
                        if ($newfile) {
                                rcs_add($file);
                        }
                        if ($newfile) {
                                rcs_add($file);
                        }
@@ -448,16 +494,19 @@ sub cgi_editpage ($$) { #{{{
                        # presumably the commit will trigger an update
                        # of the wiki
                        my $conflict=rcs_commit($file, $message,
                        # presumably the commit will trigger an update
                        # of the wiki
                        my $conflict=rcs_commit($file, $message,
-                               $form->field("rcsinfo"));
+                               $form->field("rcsinfo"),
+                               $session->param("name"), $ENV{REMOTE_ADDR});
                
                        if (defined $conflict) {
                                $form->field(name => "rcsinfo", value => rcs_prepedit($file),
                                        force => 1);
                                $form->tmpl_param("page_conflict", 1);
                
                        if (defined $conflict) {
                                $form->field(name => "rcsinfo", value => rcs_prepedit($file),
                                        force => 1);
                                $form->tmpl_param("page_conflict", 1);
-                               $form->field("content", value => $conflict, force => 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("do", "edit)");
                                $form->tmpl_param("page_select", 0);
                                $form->field(name => "page", type => 'hidden');
+                               $form->field(name => "type", type => 'hidden');
                                $form->title("editing $page");
                                print $form->render(submit => \@buttons);
                                return;
                                $form->title("editing $page");
                                print $form->render(submit => \@buttons);
                                return;
@@ -471,19 +520,55 @@ sub cgi_editpage ($$) { #{{{
                
                # The trailing question mark tries to avoid broken
                # caches and get the most recent version of the page.
                
                # The trailing question mark tries to avoid broken
                # caches and get the most recent version of the page.
-               print $q->redirect("$config{url}/".htmlpage($page)."?updated");
+               redirect($q, "$config{url}/".htmlpage($page)."?updated");
        }
 } #}}}
 
        }
 } #}}}
 
-sub cgi () { #{{{
-       eval q{use CGI};
+sub cgi_getsession ($) { #{{{
+       my $q=shift;
+
        eval q{use CGI::Session};
        eval q{use CGI::Session};
+       CGI::Session->name("ikiwiki_session_".encode_utf8($config{wikiname}));
        
        
-       my $q=CGI->new;
+       my $oldmask=umask(077);
+       my $session = CGI::Session->new("driver:DB_File", $q,
+               { FileName => "$config{wikistatedir}/sessions.db" });
+       umask($oldmask);
+
+       return $session;
+} #}}}
+
+sub cgi_savesession ($) { #{{{
+       my $session=shift;
+
+       # Force session flush with safe umask.
+       my $oldmask=umask(077);
+       $session->flush;
+       umask($oldmask);
+}
+
+sub cgi (;$$) { #{{{
+       my $q=shift;
+       my $session=shift;
+
+       if (! $q) {
+               eval q{use CGI};
+               error($@) if $@;
        
        
+               $q=CGI->new;
+       
+               run_hooks(cgi => sub { shift->($q) });
+       }
+
        my $do=$q->param('do');
        if (! defined $do || ! length $do) {
        my $do=$q->param('do');
        if (! defined $do || ! length $do) {
-               error("\"do\" parameter missing");
+               my $error = $q->cgi_error;
+               if ($error) {
+                       error("Request not processed: $error");
+               }
+               else {
+                       error("\"do\" parameter missing");
+               }
        }
        
        # Things that do not need a session.
        }
        
        # Things that do not need a session.
@@ -491,27 +576,58 @@ 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();
        
        
-       CGI::Session->name("ikiwiki_session_$config{wikiname}");
-       
-       my $oldmask=umask(077);
-       my $session = CGI::Session->new("driver:db_file", $q,
-               { FileName => "$config{wikistatedir}/sessions.db" });
-       umask($oldmask);
+       if (! $session) {
+               $session=cgi_getsession($q);
+       }
        
        
+       # Auth hooks can sign a user in.
+       if ($do ne 'signin' && ! defined $session->param("name")) {
+               run_hooks(auth => sub {
+                       shift->($q, $session)
+               });
+               if (defined $session->param("name")) {
+                       # Make sure whatever user was authed is in the
+                       # userinfo db.
+                       if (! userinfo_get($session->param("name"), "regdate")) {
+                               userinfo_setall($session->param("name"), {
+                                       email => "",
+                                       password => "",
+                                       regdate => time,
+                               });
+                       }
+               }
+       }
+
        # Everything below this point needs the user to be signed in.
        # Everything below this point needs the user to be signed in.
-       if ((! $config{anonok} && ! defined $session->param("name") ||
-            ! defined $session->param("name") ||
-            ! userinfo_get($session->param("name"), "regdate")) || $do eq 'signin') {
+       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 => $ENV{QUERY_STRING});
+               }
                cgi_signin($q, $session);
                cgi_signin($q, $session);
-       
-               # Force session flush with safe umask.
-               my $oldmask=umask(077);
-               $session->flush;
-               umask($oldmask);
-               
+               cgi_savesession($session);
                return;
        }
                return;
        }
+       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");
+               $session->delete();
+               print "You are banned.";
+               cgi_savesession($session);
+               exit;
+       }
        
        if ($do eq 'create' || $do eq 'edit') {
                cgi_editpage($q, $session);
        
        if ($do eq 'create' || $do eq 'edit') {
                cgi_editpage($q, $session);
@@ -520,11 +636,11 @@ sub cgi () { #{{{
                cgi_prefs($q, $session);
        }
        elsif ($do eq 'blog') {
                cgi_prefs($q, $session);
        }
        elsif ($do eq 'blog') {
-               my $page=titlepage(lc($q->param('title')));
+               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="";
                # if the page already exists, munge it to be unique
                my $from=$q->param('from');
                my $add="";
-               while (exists $oldpagemtime{"$from/$page$add"}) {
+               while (exists $pagecase{lc "$from/$page$add"}) {
                        $add=1 unless length $add;
                        $add++;
                }
                        $add=1 unless length $add;
                        $add++;
                }
@@ -538,4 +654,26 @@ sub cgi () { #{{{
        }
 } #}}}
 
        }
 } #}}}
 
+sub userlink ($) { #{{{
+       my $user=shift;
+
+       eval q{use CGI 'escapeHTML'};
+       error($@) if $@;
+       if ($user =~ m!^https?://! &&
+           eval q{use Net::OpenID::VerifiedIdentity; 1} && !$@) {
+               # Munge user-urls, as used by eg, OpenID.
+               my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user);
+               my $display=$oid->display;
+               # Convert "user.somehost.com" to "user [somehost.com]".
+               if ($display !~ /\[/) {
+                       $display=~s/^(.*?)\.([^.]+\.[a-z]+)$/$1 [$2]/;
+               }
+               $display=~s!^https?://!!; # make sure this is removed
+               return "<a href=\"$user\">".escapeHTML($display)."</a>";
+       }
+       else {
+               return htmllink("", "", escapeHTML($user), 1);
+       }
+} #}}}
+
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Unnamed repository; edit this file 'description' to name the repository.