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[ikiwiki.git] / IkiWiki / CGI.pm
1 #!/usr/bin/perl
2
3 use warnings;
4 use strict;
5 use IkiWiki;
6 use IkiWiki::UserInfo;
7 use open qw{:utf8 :std};
8 use Encode;
9
10 package IkiWiki;
11
12 sub printheader ($) { #{{{
13         my $session=shift;
14         
15         if ($config{sslcookie}) {
16                 print $session->header(-charset => 'utf-8',
17                         -cookie => $session->cookie(-secure => 1));
18         } else {
19                 print $session->header(-charset => 'utf-8');
20         }
21
22 } #}}}
23
24 sub redirect ($$) { #{{{
25         my $q=shift;
26         my $url=shift;
27         if (! $config{w3mmode}) {
28                 print $q->redirect($url);
29         }
30         else {
31                 print "Content-type: text/plain\n";
32                 print "W3m-control: GOTO $url\n\n";
33         }
34 } #}}}
35
36 sub check_canedit ($$$;$) { #{{{
37         my $page=shift;
38         my $q=shift;
39         my $session=shift;
40         my $nonfatal=shift;
41         
42         my $canedit;
43         run_hooks(canedit => sub {
44                 return if defined $canedit;
45                 my $ret=shift->($page, $q, $session);
46                 if (defined $ret && $ret eq "") {
47                         $canedit=1;
48                 }
49                 elsif (defined $ret) {
50                         $canedit=0;
51                         error($ret) unless $nonfatal;
52                 }
53         });
54         return $canedit;
55 } #}}}
56
57 sub decode_form_utf8 ($) { #{{{
58         my $form = shift;
59         foreach my $f ($form->field) {
60                 next if Encode::is_utf8(scalar $form->field($f));
61                 $form->field(name  => $f,
62                              value => decode_utf8($form->field($f)),
63                              force => 1,
64                             );
65         }
66 } #}}}
67
68 sub cgi_recentchanges ($) { #{{{
69         my $q=shift;
70         
71         # Optimisation: building recentchanges means calculating lots of
72         # links. Memoizing htmllink speeds it up a lot (can't be memoized
73         # during page builds as the return values may change, but they
74         # won't here.)
75         eval q{use Memoize};
76         error($@) if $@;
77         memoize("htmllink");
78
79         eval q{use Time::Duration};
80         error($@) if $@;
81
82         my $changelog=[rcs_recentchanges(100)];
83         foreach my $change (@$changelog) {
84                 $change->{when} = concise(ago($change->{when}));
85
86                 $change->{user} = userlink($change->{user});
87
88                 my $is_excess = exists $change->{pages}[10]; # limit pages to first 10
89                 delete @{$change->{pages}}[10 .. @{$change->{pages}}] if $is_excess;
90                 $change->{pages} = [
91                         map {
92                                 $_->{link} = htmllink("", "", $_->{page},
93                                         noimageinline => 1,
94                                         linktext => pagetitle($_->{page}));
95                                 $_;
96                         } @{$change->{pages}}
97                 ];
98                 push @{$change->{pages}}, { link => '...' } if $is_excess;
99         }
100
101         my $template=template("recentchanges.tmpl"); 
102         $template->param(
103                 title => "RecentChanges",
104                 indexlink => indexlink(),
105                 wikiname => $config{wikiname},
106                 changelog => $changelog,
107                 baseurl => baseurl(),
108         );
109         run_hooks(pagetemplate => sub {
110                 shift->(page => "", destpage => "", template => $template);
111         });
112         print $q->header(-charset => 'utf-8'), $template->output;
113 } #}}}
114
115 # Check if the user is signed in. If not, redirect to the signin form and
116 # save their place to return to later.
117 sub needsignin ($$) { #{{{
118         my $q=shift;
119         my $session=shift;
120
121         if (! defined $session->param("name") ||
122             ! userinfo_get($session->param("name"), "regdate")) {
123                 if (! defined $session->param("postsignin")) {
124                         $session->param(postsignin => $ENV{QUERY_STRING});
125                 }
126                 cgi_signin($q, $session);
127                 cgi_savesession($session);
128                 exit;
129         }
130 } #}}}  
131
132 sub cgi_signin ($$) { #{{{
133         my $q=shift;
134         my $session=shift;
135
136         eval q{use CGI::FormBuilder};
137         error($@) if $@;
138         my $form = CGI::FormBuilder->new(
139                 title => "signin",
140                 name => "signin",
141                 header => 1,
142                 charset => "utf-8",
143                 method => 'POST',
144                 required => 'NONE',
145                 javascript => 0,
146                 params => $q,
147                 action => $config{cgiurl},
148                 header => 0,
149                 template => {type => 'div'},
150                 stylesheet => baseurl()."style.css",
151         );
152         my $buttons=["Login"];
153         
154         if ($q->param("do") ne "signin" && !$form->submitted) {
155                 $form->text(gettext("You need to log in first."));
156         }
157         $form->field(name => "do", type => "hidden", value => "signin",
158                 force => 1);
159         
160         run_hooks(formbuilder_setup => sub {
161                 shift->(form => $form, cgi => $q, session => $session);
162         });
163         
164         decode_form_utf8($form);
165
166         if (exists $hooks{formbuilder}) {
167                 run_hooks(formbuilder => sub {
168                         shift->(form => $form, cgi => $q, session => $session,
169                                 buttons => $buttons);
170                 });
171         }
172         else {
173                 if ($form->submitted) {
174                         $form->validate;
175                 }
176                 printheader($session);
177                 print misctemplate($form->title, $form->render(submit => $buttons));
178         }
179 } #}}}
180
181 sub cgi_postsignin ($$) { #{{{
182         my $q=shift;
183         my $session=shift;
184         
185         # Continue with whatever was being done before the signin process.
186         if (defined $session->param("postsignin")) {
187                 my $postsignin=CGI->new($session->param("postsignin"));
188                 $session->clear("postsignin");
189                 cgi($postsignin, $session);
190                 cgi_savesession($session);
191                 exit;
192         }
193         else {
194                 # This can occur, for example, if a user went to the signin
195                 # url via a bookmark.
196                 redirect($q, $config{url});
197         }
198 } #}}}
199
200 sub cgi_prefs ($$) { #{{{
201         my $q=shift;
202         my $session=shift;
203
204         needsignin($q, $session);
205
206         eval q{use CGI::FormBuilder};
207         error($@) if $@;
208         my $form = CGI::FormBuilder->new(
209                 title => "preferences",
210                 name => "preferences",
211                 header => 0,
212                 charset => "utf-8",
213                 method => 'POST',
214                 validate => {
215                         email => 'EMAIL',
216                 },
217                 required => 'NONE',
218                 javascript => 0,
219                 params => $q,
220                 action => $config{cgiurl},
221                 template => {type => 'div'},
222                 stylesheet => baseurl()."style.css",
223                 fieldsets => [
224                         [login => gettext("Login")],
225                         [preferences => gettext("Preferences")],
226                         [admin => gettext("Admin")]
227                 ],
228         );
229         my $buttons=["Save Preferences", "Logout", "Cancel"];
230
231         run_hooks(formbuilder_setup => sub {
232                 shift->(form => $form, cgi => $q, session => $session);
233         });
234         
235         $form->field(name => "do", type => "hidden");
236         $form->field(name => "email", size => 50, fieldset => "preferences");
237         $form->field(name => "subscriptions", size => 50,
238                 fieldset => "preferences",
239                 comment => "(".htmllink("", "", "PageSpec", noimageinline => 1).")");
240         $form->field(name => "banned_users", size => 50,
241                 fieldset => "admin");
242         
243         my $user_name=$session->param("name");
244         if (! is_admin($user_name)) {
245                 $form->field(name => "banned_users", type => "hidden");
246         }
247
248         if (! $form->submitted) {
249                 $form->field(name => "email", force => 1,
250                         value => userinfo_get($user_name, "email"));
251                 $form->field(name => "subscriptions", force => 1,
252                         value => userinfo_get($user_name, "subscriptions"));
253                 if (is_admin($user_name)) {
254                         $form->field(name => "banned_users", force => 1,
255                                 value => join(" ", get_banned_users()));
256                 }
257         }
258         
259         decode_form_utf8($form);
260         
261         if ($form->submitted eq 'Logout') {
262                 $session->delete();
263                 redirect($q, $config{url});
264                 return;
265         }
266         elsif ($form->submitted eq 'Cancel') {
267                 redirect($q, $config{url});
268                 return;
269         }
270         elsif ($form->submitted eq 'Save Preferences' && $form->validate) {
271                 foreach my $field (qw(email subscriptions)) {
272                         if (defined $form->field($field) && length $form->field($field)) {
273                                 userinfo_set($user_name, $field, $form->field($field)) ||
274                                         error("failed to set $field");
275                         }
276                 }
277                 if (is_admin($user_name)) {
278                         set_banned_users(grep { ! is_admin($_) }
279                                         split(' ',
280                                                 $form->field("banned_users"))) ||
281                                 error("failed saving changes");
282                 }
283                 $form->text(gettext("Preferences saved."));
284         }
285         
286         if (exists $hooks{formbuilder}) {
287                 run_hooks(formbuilder => sub {
288                         shift->(form => $form, cgi => $q, session => $session,
289                                 buttons => $buttons);
290                 });
291         }
292         else {
293                 printheader($session);
294                 print misctemplate($form->title, $form->render(submit => $buttons));
295         }
296 } #}}}
297
298 sub cgi_editpage ($$) { #{{{
299         my $q=shift;
300         my $session=shift;
301
302         my @fields=qw(do rcsinfo subpage from page type editcontent comments);
303         my @buttons=("Save Page", "Preview", "Cancel");
304         
305         eval q{use CGI::FormBuilder};
306         error($@) if $@;
307         my $form = CGI::FormBuilder->new(
308                 fields => \@fields,
309                 header => 1,
310                 charset => "utf-8",
311                 method => 'POST',
312                 validate => {
313                         editcontent => '/.+/',
314                 },
315                 required => [qw{editcontent}],
316                 javascript => 0,
317                 params => $q,
318                 action => $config{cgiurl},
319                 table => 0,
320                 template => scalar template_params("editpage.tmpl"),
321                 wikiname => $config{wikiname},
322         );
323         
324         run_hooks(formbuilder_setup => sub {
325                 shift->(form => $form, cgi => $q, session => $session);
326         });
327         
328         decode_form_utf8($form);
329         
330         # This untaint is safe because titlepage removes any problematic
331         # characters.
332         my ($page)=$form->field('page');
333         $page=titlepage(possibly_foolish_untaint($page));
334         if (! defined $page || ! length $page || file_pruned($page, $config{srcdir}) || $page=~/^\//) {
335                 error("bad page name");
336         }
337         
338         my $from;
339         if (defined $form->field('from')) {
340                 ($from)=$form->field('from')=~/$config{wiki_file_regexp}/;
341         }
342         
343         my $file;
344         my $type;
345         if (exists $pagesources{$page} && $form->field("do") ne "create") {
346                 $file=$pagesources{$page};
347                 $type=pagetype($file);
348                 if (! defined $type) {
349                         error(sprintf(gettext("%s is not an editable page"), $page));
350                 }
351                 if (! $form->submitted) {
352                         $form->field(name => "rcsinfo",
353                                 value => rcs_prepedit($file), force => 1);
354                 }
355         }
356         else {
357                 $type=$form->param('type');
358                 if (defined $type && length $type && $hooks{htmlize}{$type}) {
359                         $type=possibly_foolish_untaint($type);
360                 }
361                 elsif (defined $from) {
362                         # favor the type of linking page
363                         $type=pagetype($pagesources{$from});
364                 }
365                 $type=$config{default_pageext} unless defined $type;
366                 $file=$page.".".$type;
367                 if (! $form->submitted) {
368                         $form->field(name => "rcsinfo", value => "", force => 1);
369                 }
370         }
371
372         $form->field(name => "do", type => 'hidden');
373         $form->field(name => "from", type => 'hidden');
374         $form->field(name => "rcsinfo", type => 'hidden');
375         $form->field(name => "subpage", type => 'hidden');
376         $form->field(name => "page", value => pagetitle($page, 1), force => 1);
377         $form->field(name => "type", value => $type, force => 1);
378         $form->field(name => "comments", type => "text", size => 80);
379         $form->field(name => "editcontent", type => "textarea", rows => 20,
380                 cols => 80);
381         $form->tmpl_param("can_commit", $config{rcs});
382         $form->tmpl_param("indexlink", indexlink());
383         $form->tmpl_param("helponformattinglink",
384                 htmllink("", "", "HelpOnFormatting", noimageinline => 1));
385         $form->tmpl_param("baseurl", baseurl());
386         
387         if ($form->submitted eq "Cancel") {
388                 if ($form->field("do") eq "create" && defined $from) {
389                         redirect($q, "$config{url}/".htmlpage($from));
390                 }
391                 elsif ($form->field("do") eq "create") {
392                         redirect($q, $config{url});
393                 }
394                 else {
395                         redirect($q, "$config{url}/".htmlpage($page));
396                 }
397                 return;
398         }
399         elsif ($form->submitted eq "Preview") {
400                 $form->tmpl_param("page_preview",
401                         htmlize($page, $type,
402                         linkify($page, "",
403                         preprocess($page, $page,
404                         filter($page, $page, $form->field('editcontent')), 0, 1))));
405         }
406         else {
407                 $form->tmpl_param("page_preview", "");
408         }
409         $form->tmpl_param("page_conflict", "");
410         
411         if (! $form->submitted || $form->submitted eq "Preview" || 
412             ! $form->validate) {
413                 if ($form->field("do") eq "create") {
414                         my @page_locs;
415                         my $best_loc;
416                         if (! defined $from || ! length $from ||
417                             $from ne $form->field('from') ||
418                             file_pruned($from, $config{srcdir}) ||
419                             $from=~/^\// ||
420                             $form->submitted eq "Preview") {
421                                 @page_locs=$best_loc=$page;
422                         }
423                         else {
424                                 my $dir=$from."/";
425                                 $dir=~s![^/]+/+$!!;
426                                 
427                                 if ((defined $form->field('subpage') && length $form->field('subpage')) ||
428                                     $page eq gettext('discussion')) {
429                                         $best_loc="$from/$page";
430                                 }
431                                 else {
432                                         $best_loc=$dir.$page;
433                                 }
434                                 
435                                 push @page_locs, $dir.$page;
436                                 push @page_locs, "$from/$page";
437                                 while (length $dir) {
438                                         $dir=~s![^/]+/+$!!;
439                                         push @page_locs, $dir.$page;
440                                 }
441                         }
442                         push @page_locs, "$config{userdir}/$page"
443                                 if length $config{userdir};
444
445                         @page_locs = grep {
446                                 ! exists $pagecase{lc $_}
447                         } @page_locs;
448                         if (! @page_locs) {
449                                 # hmm, someone else made the page in the
450                                 # meantime?
451                                 redirect($q, "$config{url}/".htmlpage($page));
452                                 return;
453                         }
454
455                         my @editable_locs = grep {
456                                 check_canedit($_, $q, $session, 1)
457                         } @page_locs;
458                         if (! @editable_locs) {
459                                 # let it throw an error this time
460                                 map { check_canedit($_, $q, $session) } @page_locs;
461                         }
462                         
463                         my @page_types;
464                         if (exists $hooks{htmlize}) {
465                                 @page_types=keys %{$hooks{htmlize}};
466                         }
467                         
468                         $form->tmpl_param("page_select", 1);
469                         $form->field(name => "page", type => 'select',
470                                 options => [ map { pagetitle($_, 1) } @editable_locs ],
471                                 value => pagetitle($best_loc, 1));
472                         $form->field(name => "type", type => 'select',
473                                 options => \@page_types);
474                         $form->title(sprintf(gettext("creating %s"), pagetitle($page)));
475                 }
476                 elsif ($form->field("do") eq "edit") {
477                         check_canedit($page, $q, $session);
478                         if (! defined $form->field('editcontent') || 
479                             ! length $form->field('editcontent')) {
480                                 my $content="";
481                                 if (exists $pagesources{$page}) {
482                                         $content=readfile(srcfile($pagesources{$page}));
483                                         $content=~s/\n/\r\n/g;
484                                 }
485                                 $form->field(name => "editcontent", value => $content,
486                                         force => 1);
487                         }
488                         $form->tmpl_param("page_select", 0);
489                         $form->field(name => "page", type => 'hidden');
490                         $form->field(name => "type", type => 'hidden');
491                         $form->title(sprintf(gettext("editing %s"), pagetitle($page)));
492                 }
493                 
494                 print $form->render(submit => \@buttons);
495         }
496         else {
497                 # save page
498                 check_canedit($page, $q, $session);
499                 if (! -e "$config{srcdir}/$file" &&
500                     $form->field("do") ne "create") {
501                         $form->tmpl_param("page_gone", 1);
502                         $form->field(name => "do", value => "create", force => 1);
503                         $form->tmpl_param("page_select", 0);
504                         $form->field(name => "page", type => 'hidden');
505                         $form->field(name => "type", type => 'hidden');
506                         $form->title(sprintf(gettext("editing %s"), $page));
507                         print $form->render(submit => \@buttons);
508                         return;
509                 }
510                 elsif (-e "$config{srcdir}/$file" &&
511                        $form->field("do") eq "create") {
512                         $form->tmpl_param("creation_conflict", 1);
513                         $form->field(name => "do", value => "edit", force => 1);
514                         $form->tmpl_param("page_select", 0);
515                         $form->field(name => "page", type => 'hidden');
516                         $form->field(name => "type", type => 'hidden');
517                         $form->title(sprintf(gettext("editing %s"), $page));
518                         $form->field("editcontent", 
519                                 value => readfile("$config{srcdir}/$file").
520                                          "\n\n\n".$form->field("editcontent"),
521                                 force => 1);
522                         print $form->render(submit => \@buttons);
523                         return;
524                 }
525                 
526                 my $content=$form->field('editcontent');
527
528                 $content=~s/\r\n/\n/g;
529                 $content=~s/\r/\n/g;
530
531                 $config{cgi}=0; # avoid cgi error message
532                 eval { writefile($file, $config{srcdir}, $content) };
533                 $config{cgi}=1;
534                 if ($@) {
535                         $form->field(name => "rcsinfo", value => rcs_prepedit($file),
536                                 force => 1);
537                         $form->tmpl_param("failed_save", 1);
538                         $form->tmpl_param("error_message", $@);
539                         $form->field("editcontent", value => $content, force => 1);
540                         $form->tmpl_param("page_select", 0);
541                         $form->field(name => "page", type => 'hidden');
542                         $form->field(name => "type", type => 'hidden');
543                         $form->title(sprintf(gettext("editing %s"), $page));
544                         print $form->render(submit => \@buttons);
545                         return;
546                 }
547                 
548                 my $conflict;
549                 if ($config{rcs}) {
550                         my $message="";
551                         if (defined $form->field('comments') &&
552                             length $form->field('comments')) {
553                                 $message=$form->field('comments');
554                         }
555                         
556                         if ($form->field("do") eq "create") {
557                                 rcs_add($file);
558                         }
559
560                         # Prevent deadlock with post-commit hook by
561                         # signaling to it that it should not try to
562                         # do anything (except send commit mails).
563                         disable_commit_hook();
564                         $conflict=rcs_commit($file, $message,
565                                 $form->field("rcsinfo"),
566                                 $session->param("name"), $ENV{REMOTE_ADDR});
567                         enable_commit_hook();
568                         rcs_update();
569                 }
570                 
571                 # Refresh even if there was a conflict, since other changes
572                 # may have been committed while the post-commit hook was
573                 # disabled.
574                 require IkiWiki::Render;
575                 refresh();
576                 saveindex();
577
578                 if (defined $conflict) {
579                         $form->field(name => "rcsinfo", value => rcs_prepedit($file),
580                                 force => 1);
581                         $form->tmpl_param("page_conflict", 1);
582                         $form->field("editcontent", value => $conflict, force => 1);
583                         $form->field("do", "edit", force => 1);
584                         $form->tmpl_param("page_select", 0);
585                         $form->field(name => "page", type => 'hidden');
586                         $form->field(name => "type", type => 'hidden');
587                         $form->title(sprintf(gettext("editing %s"), $page));
588                         print $form->render(submit => \@buttons);
589                         return;
590                 }
591                 else {
592                         # The trailing question mark tries to avoid broken
593                         # caches and get the most recent version of the page.
594                         redirect($q, "$config{url}/".htmlpage($page)."?updated");
595                 }
596         }
597 } #}}}
598
599 sub cgi_getsession ($) { #{{{
600         my $q=shift;
601
602         eval q{use CGI::Session};
603         CGI::Session->name("ikiwiki_session_".encode_utf8($config{wikiname}));
604         
605         my $oldmask=umask(077);
606         my $session = CGI::Session->new("driver:DB_File", $q,
607                 { FileName => "$config{wikistatedir}/sessions.db" });
608         umask($oldmask);
609
610         return $session;
611 } #}}}
612
613 sub cgi_savesession ($) { #{{{
614         my $session=shift;
615
616         # Force session flush with safe umask.
617         my $oldmask=umask(077);
618         $session->flush;
619         umask($oldmask);
620 } #}}}
621
622 sub cgi (;$$) { #{{{
623         my $q=shift;
624         my $session=shift;
625
626         if (! $q) {
627                 eval q{use CGI};
628                 error($@) if $@;
629         
630                 $q=CGI->new;
631         
632                 run_hooks(cgi => sub { shift->($q) });
633         }
634
635         my $do=$q->param('do');
636         if (! defined $do || ! length $do) {
637                 my $error = $q->cgi_error;
638                 if ($error) {
639                         error("Request not processed: $error");
640                 }
641                 else {
642                         error("\"do\" parameter missing");
643                 }
644         }
645         
646         # Things that do not need a session.
647         if ($do eq 'recentchanges') {
648                 cgi_recentchanges($q);
649                 return;
650         }
651         elsif ($do eq 'hyperestraier') {
652                 cgi_hyperestraier();
653         }
654
655         # Need to lock the wiki before getting a session.
656         lockwiki();
657         
658         if (! $session) {
659                 $session=cgi_getsession($q);
660         }
661         
662         # Auth hooks can sign a user in.
663         if ($do ne 'signin' && ! defined $session->param("name")) {
664                 run_hooks(auth => sub {
665                         shift->($q, $session)
666                 });
667                 if (defined $session->param("name")) {
668                         # Make sure whatever user was authed is in the
669                         # userinfo db.
670                         if (! userinfo_get($session->param("name"), "regdate")) {
671                                 userinfo_setall($session->param("name"), {
672                                         email => "",
673                                         password => "",
674                                         regdate => time,
675                                 }) || error("failed adding user");
676                         }
677                 }
678         }
679         
680         if (defined $session->param("name") &&
681             userinfo_get($session->param("name"), "banned")) {
682                 print $q->header(-status => "403 Forbidden");
683                 $session->delete();
684                 print gettext("You are banned.");
685                 cgi_savesession($session);
686         }
687         elsif ($do eq 'signin') {
688                 cgi_signin($q, $session);
689                 cgi_savesession($session);
690         }
691         elsif (defined $session->param("postsignin")) {
692                 cgi_postsignin($q, $session);
693         }
694         elsif ($do eq 'prefs') {
695                 cgi_prefs($q, $session);
696         }
697         elsif ($do eq 'create' || $do eq 'edit') {
698                 cgi_editpage($q, $session);
699         }
700         elsif ($do eq 'blog') {
701                 my $page=decode_utf8($q->param('title'));
702                 $page=~s/\///g; # no slashes in blog posts
703                 # if the page already exists, munge it to be unique
704                 my $from=$q->param('from');
705                 my $add="";
706                 while (exists $pagecase{lc($from."/".titlepage($page).$add)}) {
707                         $add=1 unless length $add;
708                         $add++;
709                 }
710                 $q->param('page', $page.$add);
711                 # now run same as create
712                 $q->param('do', 'create');
713                 cgi_editpage($q, $session);
714         }
715         elsif ($do eq 'postsignin') {
716                 error(gettext("login failed, perhaps you need to turn on cookies?"));
717         }
718         else {
719                 error("unknown do parameter");
720         }
721 } #}}}
722
723 sub userlink ($) { #{{{
724         my $user=shift;
725
726         eval q{use CGI 'escapeHTML'};
727         error($@) if $@;
728         if ($user =~ m!^https?://! &&
729             eval q{use Net::OpenID::VerifiedIdentity; 1} && !$@) {
730                 # Munge user-urls, as used by eg, OpenID.
731                 my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user);
732                 my $display=$oid->display;
733                 # Convert "user.somehost.com" to "user [somehost.com]".
734                 if ($display !~ /\[/) {
735                         $display=~s/^(.*?)\.([^.]+\.[a-z]+)$/$1 [$2]/;
736                 }
737                 # Convert "http://somehost.com/user" to "user [somehost.com]".
738                 if ($display !~ /\[/) {
739                         $display=~s/^https?:\/\/(.+)\/([^\/]+)$/$2 [$1]/;
740                 }
741                 $display=~s!^https?://!!; # make sure this is removed
742                 return "<a href=\"$user\">".escapeHTML($display)."</a>";
743         }
744         else {
745                 return htmllink("", "", escapeHTML(
746                         length $config{userdir} ? $config{userdir}."/".$user : $user
747                 ), noimageinline => 1);
748         }
749 } #}}}
750
751 1