changelog
[ikiwiki] / IkiWiki / Plugin / inline.pm
1 #!/usr/bin/perl
2 # Page inlining and blogging.
3 package IkiWiki::Plugin::inline;
4
5 use warnings;
6 use strict;
7 use Encode;
8 use IkiWiki 3.00;
9 use URI;
10
11 my %knownfeeds;
12 my %page_numfeeds;
13 my @inline;
14 my $nested=0;
15
16 sub import {
17         hook(type => "getopt", id => "inline", call => \&getopt);
18         hook(type => "getsetup", id => "inline", call => \&getsetup);
19         hook(type => "checkconfig", id => "inline", call => \&checkconfig);
20         hook(type => "sessioncgi", id => "inline", call => \&sessioncgi);
21         hook(type => "preprocess", id => "inline", 
22                 call => \&IkiWiki::preprocess_inline, scan => 1);
23         hook(type => "pagetemplate", id => "inline",
24                 call => \&IkiWiki::pagetemplate_inline);
25         hook(type => "format", id => "inline", call => \&format, first => 1);
26         # Hook to change to do pinging since it's called late.
27         # This ensures each page only pings once and prevents slow
28         # pings interrupting page builds.
29         hook(type => "change", id => "inline", call => \&IkiWiki::pingurl);
30 }
31
32 sub getopt () {
33         eval q{use Getopt::Long};
34         error($@) if $@;
35         Getopt::Long::Configure('pass_through');
36         GetOptions(
37                 "rss!" => \$config{rss},
38                 "atom!" => \$config{atom},
39                 "allowrss!" => \$config{allowrss},
40                 "allowatom!" => \$config{allowatom},
41                 "pingurl=s" => sub {
42                         push @{$config{pingurl}}, $_[1];
43                 },      
44         );
45 }
46
47 sub getsetup () {
48         return
49                 plugin => {
50                         safe => 1,
51                         rebuild => undef,
52                         section => "core",
53                 },
54                 rss => {
55                         type => "boolean",
56                         example => 0,
57                         description => "enable rss feeds by default?",
58                         safe => 1,
59                         rebuild => 1,
60                 },
61                 atom => {
62                         type => "boolean",
63                         example => 0,
64                         description => "enable atom feeds by default?",
65                         safe => 1,
66                         rebuild => 1,
67                 },
68                 allowrss => {
69                         type => "boolean",
70                         example => 0,
71                         description => "allow rss feeds to be used?",
72                         safe => 1,
73                         rebuild => 1,
74                 },
75                 allowatom => {
76                         type => "boolean",
77                         example => 0,
78                         description => "allow atom feeds to be used?",
79                         safe => 1,
80                         rebuild => 1,
81                 },
82                 pingurl => {
83                         type => "string",
84                         example => "http://rpc.technorati.com/rpc/ping",
85                         description => "urls to ping (using XML-RPC) on feed update",
86                         safe => 1,
87                         rebuild => 0,
88                 },
89 }
90
91 sub checkconfig () {
92         if (($config{rss} || $config{atom}) && ! length $config{url}) {
93                 error(gettext("Must specify url to wiki with --url when using --rss or --atom"));
94         }
95         if ($config{rss}) {
96                 push @{$config{wiki_file_prune_regexps}}, qr/\.rss$/;
97         }
98         if ($config{atom}) {
99                 push @{$config{wiki_file_prune_regexps}}, qr/\.atom$/;
100         }
101         if (! exists $config{pingurl}) {
102                 $config{pingurl}=[];
103         }
104 }
105
106 sub format (@) {
107         my %params=@_;
108
109         # Fill in the inline content generated earlier. This is actually an
110         # optimisation.
111         $params{content}=~s{<div class="inline" id="([^"]+)"></div>}{
112                 delete @inline[$1,]
113         }eg;
114         return $params{content};
115 }
116
117 sub sessioncgi ($$) {
118         my $q=shift;
119         my $session=shift;
120
121         if ($q->param('do') eq 'blog') {
122                 my $page=titlepage(decode_utf8($q->param('title')));
123                 $page=~s/(\/)/"__".ord($1)."__"/eg; # don't create subdirs
124                 # if the page already exists, munge it to be unique
125                 my $from=$q->param('from');
126                 my $add="";
127                 while (exists $IkiWiki::pagecase{lc($from."/".$page.$add)}) {
128                         $add=1 unless length $add;
129                         $add++;
130                 }
131                 $q->param('page', "/$from/$page$add");
132                 # now go create the page
133                 $q->param('do', 'create');
134                 # make sure the editpage plugin is loaded
135                 if (IkiWiki->can("cgi_editpage")) {
136                         IkiWiki::cgi_editpage($q, $session);
137                 }
138                 else {
139                         error(gettext("page editing not allowed"));
140                 }
141                 exit;
142         }
143 }
144
145 # Back to ikiwiki namespace for the rest, this code is very much
146 # internal to ikiwiki even though it's separated into a plugin.
147 package IkiWiki;
148
149 my %toping;
150 my %feedlinks;
151
152 sub preprocess_inline (@) {
153         my %params=@_;
154         
155         if (! exists $params{pages} && ! exists $params{pagenames}) {
156                 error gettext("missing pages parameter");
157         }
158
159         if (! defined wantarray) {
160                 # Running in scan mode: only do the essentials
161
162                 if (yesno($params{trail}) && IkiWiki::Plugin::trail->can("preprocess_trailitems")) {
163                         # default to sorting age, the same as inline itself,
164                         # but let the params override that
165                         IkiWiki::Plugin::trail::preprocess_trailitems(sort => 'age', %params);
166                 }
167
168                 return;
169         }
170
171         if (yesno($params{trail}) && IkiWiki::Plugin::trail->can("preprocess_trailitems")) {
172                 scalar IkiWiki::Plugin::trail::preprocess_trailitems(sort => 'age', %params);
173         }
174
175         my $raw=yesno($params{raw});
176         my $archive=yesno($params{archive});
177         my $rss=(($config{rss} || $config{allowrss}) && exists $params{rss}) ? yesno($params{rss}) : $config{rss};
178         my $atom=(($config{atom} || $config{allowatom}) && exists $params{atom}) ? yesno($params{atom}) : $config{atom};
179         my $quick=exists $params{quick} ? yesno($params{quick}) : 0;
180         my $feeds=exists $params{feeds} ? yesno($params{feeds}) : !$quick && ! $raw;
181         my $emptyfeeds=exists $params{emptyfeeds} ? yesno($params{emptyfeeds}) : 1;
182         my $feedonly=yesno($params{feedonly});
183         if (! exists $params{show} && ! $archive) {
184                 $params{show}=10;
185         }
186         if (! exists $params{feedshow} && exists $params{show}) {
187                 $params{feedshow}=$params{show};
188         }
189         my $desc;
190         if (exists $params{description}) {
191                 $desc = $params{description} 
192         }
193         else {
194                 $desc = $config{wikiname};
195         }
196         my $actions=yesno($params{actions});
197         if (exists $params{template}) {
198                 $params{template}=~s/[^-_a-zA-Z0-9]+//g;
199         }
200         else {
201                 $params{template} = $archive ? "archivepage" : "inlinepage";
202         }
203
204         my @list;
205
206         if (exists $params{pagenames}) {
207                 foreach my $p (qw(sort pages)) {
208                         if (exists $params{$p}) {
209                                 error sprintf(gettext("the %s and %s parameters cannot be used together"),
210                                         "pagenames", $p);
211                         }
212                 }
213
214                 @list = map { bestlink($params{page}, $_) }
215                         split ' ', $params{pagenames};
216
217                 if (yesno($params{reverse})) {
218                         @list=reverse(@list);
219                 }
220
221                 foreach my $p (@list) {
222                         add_depends($params{page}, $p, deptype($quick ? "presence" : "content"));
223                 }
224         }
225         else {
226                 my $num=0;
227                 if ($params{show}) {
228                         $num=$params{show};
229                 }
230                 if ($params{feedshow} && $num < $params{feedshow} && $num > 0) {
231                         $num=$params{feedshow};
232                 }
233                 if ($params{skip} && $num) {
234                         $num+=$params{skip};
235                 }
236
237                 @list = pagespec_match_list($params{page}, $params{pages},
238                         deptype => deptype($quick ? "presence" : "content"),
239                         filter => sub { $_[0] eq $params{page} },
240                         sort => exists $params{sort} ? $params{sort} : "age",
241                         reverse => yesno($params{reverse}),
242                         ($num ? (num => $num) : ()),
243                 );
244         }
245
246         if (exists $params{skip}) {
247                 @list=@list[$params{skip} .. $#list];
248         }
249         
250         my @feedlist;
251         if ($feeds) {
252                 if (exists $params{feedshow} &&
253                     $params{feedshow} && @list > $params{feedshow}) {
254                         @feedlist=@list[0..$params{feedshow} - 1];
255                 }
256                 else {
257                         @feedlist=@list;
258                 }
259         }
260         
261         if ($params{show} && @list > $params{show}) {
262                 @list=@list[0..$params{show} - 1];
263         }
264
265         if ($feeds && exists $params{feedpages}) {
266                 @feedlist = pagespec_match_list(
267                         $params{page}, "($params{pages}) and ($params{feedpages})",
268                         deptype => deptype($quick ? "presence" : "content"),
269                         list => \@feedlist,
270                 );
271         }
272
273         my ($feedbase, $feednum);
274         if ($feeds) {
275                 # Ensure that multiple feeds on a page go to unique files.
276                 
277                 # Feedfile can lead to conflicts if usedirs is not enabled,
278                 # so avoid supporting it in that case.
279                 delete $params{feedfile} if ! $config{usedirs};
280                 # Tight limits on legal feedfiles, to avoid security issues
281                 # and conflicts.
282                 if (defined $params{feedfile}) {
283                         if ($params{feedfile} =~ /\// ||
284                             $params{feedfile} !~ /$config{wiki_file_regexp}/) {
285                                 error("illegal feedfile");
286                         }
287                         $params{feedfile}=possibly_foolish_untaint($params{feedfile});
288                 }
289                 $feedbase=targetpage($params{page}, "", $params{feedfile});
290
291                 my $feedid=join("\0", $feedbase, map { $_."\0".$params{$_} } sort keys %params);
292                 if (exists $knownfeeds{$feedid}) {
293                         $feednum=$knownfeeds{$feedid};
294                 }
295                 else {
296                         if (exists $page_numfeeds{$params{destpage}}{$feedbase}) {
297                                 if ($feeds) {
298                                         $feednum=$knownfeeds{$feedid}=++$page_numfeeds{$params{destpage}}{$feedbase};
299                                 }
300                         }
301                         else {
302                                 $feednum=$knownfeeds{$feedid}="";
303                                 if ($feeds) {
304                                         $page_numfeeds{$params{destpage}}{$feedbase}=1;
305                                 }
306                         }
307                 }
308         }
309
310         my ($rssurl, $atomurl, $rssdesc, $atomdesc);
311         if ($feeds) {
312                 if ($rss) {
313                         $rssurl=abs2rel($feedbase."rss".$feednum, dirname(htmlpage($params{destpage})));
314                         $rssdesc = sprintf(gettext("%s (RSS feed)"), $desc);
315                 }
316                 if ($atom) {
317                         $atomurl=abs2rel($feedbase."atom".$feednum, dirname(htmlpage($params{destpage})));
318                         $atomdesc = sprintf(gettext("%s (Atom feed)"), $desc);
319                 }
320         }
321
322         my $ret="";
323
324         if (length $config{cgiurl} && ! $params{preview} && (exists $params{rootpage} ||
325             (exists $params{postform} && yesno($params{postform}))) &&
326             IkiWiki->can("cgi_editpage")) {
327                 # Add a blog post form, with feed buttons.
328                 my $formtemplate=template_depends("blogpost.tmpl", $params{page}, blind_cache => 1);
329                 $formtemplate->param(cgiurl => IkiWiki::cgiurl());
330                 $formtemplate->param(rootpage => rootpage(%params));
331                 if ($feeds) {
332                         if ($rss) {
333                                 $formtemplate->param(rssurl => $rssurl);
334                                 $formtemplate->param(rssdesc => $rssdesc);
335                         }
336                         if ($atom) {
337                                 $formtemplate->param(atomurl => $atomurl);
338                                 $formtemplate->param(atomdesc => $atomdesc);
339                         }
340                 }
341                 if (exists $params{postformtext}) {
342                         $formtemplate->param(postformtext =>
343                                 $params{postformtext});
344                 }
345                 else {
346                         $formtemplate->param(postformtext =>
347                                 gettext("Add a new post titled:"));
348                 }
349                 if (exists $params{id}) {
350                         $formtemplate->param(postformid =>
351                                 $params{id});
352                 }
353                 $ret.=$formtemplate->output;
354                 
355                 # The post form includes the feed buttons, so
356                 # emptyfeeds cannot be hidden.
357                 $emptyfeeds=1;
358         }
359         elsif ($feeds && !$params{preview} && ($emptyfeeds || @feedlist)) {
360                 # Add feed buttons.
361                 my $linktemplate=template_depends("feedlink.tmpl", $params{page}, blind_cache => 1);
362                 if ($rss) {
363                         $linktemplate->param(rssurl => $rssurl);
364                         $linktemplate->param(rssdesc => $rssdesc);
365                 }
366                 if ($atom) {
367                         $linktemplate->param(atomurl => $atomurl);
368                         $linktemplate->param(atomdesc => $atomdesc);
369                 }
370                 if (exists $params{id}) {
371                         $linktemplate->param(id => $params{id});
372                 }
373                 $ret.=$linktemplate->output;
374         }
375         
376         if (! $feedonly) {
377                 my $template;
378                 if (! $raw) {
379                         # cannot use wiki pages as templates; template not sanitized due to
380                         # format hook hack
381                         eval {
382                                 $template=template_depends($params{template}.".tmpl", $params{page},
383                                         blind_cache => 1);
384                         };
385                         if ($@) {
386                                 error sprintf(gettext("failed to process template %s"), $params{template}.".tmpl").": $@";
387                         }
388                 }
389                 my $needcontent=$raw || (!($archive && $quick) && $template->query(name => 'content'));
390         
391                 foreach my $page (@list) {
392                         my $file = $pagesources{$page};
393                         my $type = pagetype($file);
394                         if (! $raw) {
395                                 if ($needcontent) {
396                                         # Get the content before populating the
397                                         # template, since getting the content uses
398                                         # the same template if inlines are nested.
399                                         my $content=get_inline_content($page, $params{destpage});
400                                         $template->param(content => $content);
401                                 }
402                                 $template->param(pageurl => urlto($page, $params{destpage}));
403                                 $template->param(inlinepage => $page);
404                                 $template->param(title => pagetitle(basename($page)));
405                                 $template->param(ctime => displaytime($pagectime{$page}, $params{timeformat}, 1));
406                                 $template->param(mtime => displaytime($pagemtime{$page}, $params{timeformat}));
407                                 $template->param(first => 1) if $page eq $list[0];
408                                 $template->param(last => 1) if $page eq $list[$#list];
409                                 $template->param(html5 => $config{html5});
410         
411                                 if ($actions) {
412                                         my $file = $pagesources{$page};
413                                         my $type = pagetype($file);
414                                         if ($config{discussion}) {
415                                                 if ($page !~ /.*\/\Q$config{discussionpage}\E$/i &&
416                                                     (length $config{cgiurl} ||
417                                                      exists $pagesources{$page."/".lc($config{discussionpage})})) {
418                                                         $template->param(have_actions => 1);
419                                                         $template->param(discussionlink =>
420                                                                 htmllink($page,
421                                                                         $params{destpage},
422                                                                         $config{discussionpage},
423                                                                         noimageinline => 1,
424                                                                         forcesubpage => 1));
425                                                 }
426                                         }
427                                         if (length $config{cgiurl} &&
428                                             defined $type &&
429                                             IkiWiki->can("cgi_editpage")) {
430                                                 $template->param(have_actions => 1);
431                                                 $template->param(editurl => cgiurl(do => "edit", page => $page));
432
433                                         }
434                                 }
435         
436                                 run_hooks(pagetemplate => sub {
437                                         shift->(page => $page, destpage => $params{destpage},
438                                                 template => $template,);
439                                 });
440         
441                                 $ret.=$template->output;
442                                 $template->clear_params;
443                         }
444                         else {
445                                 if (defined $type) {
446                                         $ret.="\n".
447                                               linkify($page, $params{destpage},
448                                               preprocess($page, $params{destpage},
449                                               filter($page, $params{destpage},
450                                               readfile(srcfile($file)))));
451                                 }
452                                 else {
453                                         $ret.="\n".
454                                               readfile(srcfile($file));
455                                 }
456                         }
457                 }
458         }
459         
460         if ($feeds && ($emptyfeeds || @feedlist)) {
461                 if ($rss) {
462                         my $rssp=$feedbase."rss".$feednum;
463                         will_render($params{destpage}, $rssp);
464                         if (! $params{preview}) {
465                                 writefile($rssp, $config{destdir},
466                                         genfeed("rss",
467                                                 $config{url}."/".$rssp, $desc, $params{guid}, $params{page}, @feedlist));
468                                 $toping{$params{destpage}}=1 unless $config{rebuild};
469                                 $feedlinks{$params{destpage}}.=qq{<link rel="alternate" type="application/rss+xml" title="$rssdesc" href="$rssurl" />};
470                         }
471                 }
472                 if ($atom) {
473                         my $atomp=$feedbase."atom".$feednum;
474                         will_render($params{destpage}, $atomp);
475                         if (! $params{preview}) {
476                                 writefile($atomp, $config{destdir},
477                                         genfeed("atom", $config{url}."/".$atomp, $desc, $params{guid}, $params{page}, @feedlist));
478                                 $toping{$params{destpage}}=1 unless $config{rebuild};
479                                 $feedlinks{$params{destpage}}.=qq{<link rel="alternate" type="application/atom+xml" title="$atomdesc" href="$atomurl" />};
480                         }
481                 }
482         }
483         
484         clear_inline_content_cache();
485
486         return $ret if $raw || $nested;
487         push @inline, $ret;
488         return "<div class=\"inline\" id=\"$#inline\"></div>\n\n";
489 }
490
491 sub pagetemplate_inline (@) {
492         my %params=@_;
493         my $page=$params{page};
494         my $template=$params{template};
495
496         $template->param(feedlinks => $feedlinks{$page})
497                 if exists $feedlinks{$page} && $template->query(name => "feedlinks");
498 }
499
500 {
501 my %inline_content;
502 my $cached_destpage="";
503
504 sub get_inline_content ($$) {
505         my $page=shift;
506         my $destpage=shift;
507         
508         if (exists $inline_content{$page} && $cached_destpage eq $destpage) {
509                 return $inline_content{$page};
510         }
511
512         my $file=$pagesources{$page};
513         my $type=pagetype($file);
514         my $ret="";
515         if (defined $type) {
516                 $nested++;
517                 $ret=htmlize($page, $destpage, $type,
518                        linkify($page, $destpage,
519                        preprocess($page, $destpage,
520                        filter($page, $destpage,
521                        readfile(srcfile($file))))));
522                 $nested--;
523                 if (isinternal($page)) {
524                         # make inlined text of internal pages searchable
525                         run_hooks(indexhtml => sub {
526                                 shift->(page => $page, destpage => $destpage,
527                                         content => $ret);
528                         });
529                 }
530         }
531         
532         if ($cached_destpage ne $destpage) {
533                 clear_inline_content_cache();
534                 $cached_destpage=$destpage;
535         }
536         return $inline_content{$page}=$ret;
537 }
538
539 sub clear_inline_content_cache () {
540         %inline_content=();
541 }
542
543 }
544
545 sub date_822 ($) {
546         my $time=shift;
547
548         my $lc_time=POSIX::setlocale(&POSIX::LC_TIME);
549         POSIX::setlocale(&POSIX::LC_TIME, "C");
550         my $ret=POSIX::strftime("%a, %d %b %Y %H:%M:%S %z", localtime($time));
551         POSIX::setlocale(&POSIX::LC_TIME, $lc_time);
552         return $ret;
553 }
554
555 sub absolute_urls ($$) {
556         # needed because rss sucks
557         my $html=shift;
558         my $baseurl=shift;
559
560         my $url=$baseurl;
561         $url=~s/[^\/]+$//;
562         my $urltop; # calculated if needed
563
564         my $ret="";
565
566         eval q{use HTML::Parser; use HTML::Tagset};
567         die $@ if $@;
568         my $p = HTML::Parser->new(api_version => 3);
569         $p->handler(default => sub { $ret.=join("", @_) }, "text");
570         $p->handler(start => sub {
571                 my ($tagname, $pos, $text) = @_;
572                 if (ref $HTML::Tagset::linkElements{$tagname}) {
573                         while (4 <= @$pos) {
574                                 # use attribute sets from right to left
575                                 # to avoid invalidating the offsets
576                                 # when replacing the values
577                                 my ($k_offset, $k_len, $v_offset, $v_len) =
578                                         splice(@$pos, -4);
579                                 my $attrname = lc(substr($text, $k_offset, $k_len));
580                                 next unless grep { $_ eq $attrname } @{$HTML::Tagset::linkElements{$tagname}};
581                                 next unless $v_offset; # 0 v_offset means no value
582                                 my $v = substr($text, $v_offset, $v_len);
583                                 $v =~ s/^([\'\"])(.*)\1$/$2/;
584                                 eval q{use HTML::Entities};
585                                 my $dv = decode_entities($v);
586                                 if ($dv=~/^#/) {
587                                         $v=$baseurl.$v; # anchor
588                                 }
589                                 elsif ($dv=~/^(?!\w+:)[^\/]/) {
590                                         $v=$url.$v; # relative url
591                                 }
592                                 elsif ($dv=~/^\//) {
593                                         if (! defined $urltop) {
594                                                 # what is the non path part of the url?
595                                                 my $top_uri = URI->new($url);
596                                                 $top_uri->path_query(""); # reset the path
597                                                 $urltop = $top_uri->as_string;
598                                         }
599                                         $v=$urltop.$v; # url relative to top of site
600                                 }
601                                 $v =~ s/\"/&quot;/g; # since we quote with ""
602                                 substr($text, $v_offset, $v_len) = qq("$v");
603                         }
604                 }
605                 $ret.=$text;
606         }, "tagname, tokenpos, text");
607         $p->parse($html);
608         $p->eof;
609
610         return $ret;
611 }
612
613 sub genfeed ($$$$$@) {
614         my $feedtype=shift;
615         my $feedurl=shift;
616         my $feeddesc=shift;
617         my $guid=shift;
618         my $page=shift;
619         my @pages=@_;
620         
621         my $url=URI->new(encode_utf8(urlto($page,"",1)));
622         
623         my $itemtemplate=template_depends($feedtype."item.tmpl", $page, blind_cache => 1);
624         my $content="";
625         my $lasttime = 0;
626         foreach my $p (@pages) {
627                 my $u=URI->new(encode_utf8(urlto($p, "", 1)));
628                 my $pcontent = absolute_urls(get_inline_content($p, $page), $url);
629
630                 $itemtemplate->param(
631                         title => pagetitle(basename($p)),
632                         url => $u,
633                         permalink => $u,
634                         cdate_822 => date_822($pagectime{$p}),
635                         mdate_822 => date_822($pagemtime{$p}),
636                         cdate_3339 => date_3339($pagectime{$p}),
637                         mdate_3339 => date_3339($pagemtime{$p}),
638                 );
639
640                 if (exists $pagestate{$p}) {
641                         if (exists $pagestate{$p}{meta}{guid}) {
642                                 eval q{use HTML::Entities};
643                                 $itemtemplate->param(guid => HTML::Entities::encode_numeric($pagestate{$p}{meta}{guid}));
644                         }
645
646                         if (exists $pagestate{$p}{meta}{updated}) {
647                                 $itemtemplate->param(mdate_822 => date_822($pagestate{$p}{meta}{updated}));
648                                 $itemtemplate->param(mdate_3339 => date_3339($pagestate{$p}{meta}{updated}));
649                         }
650                 }
651
652                 if ($itemtemplate->query(name => "enclosure")) {
653                         my $file=$pagesources{$p};
654                         my $type=pagetype($file);
655                         if (defined $type) {
656                                 $itemtemplate->param(content => $pcontent);
657                         }
658                         else {
659                                 my $size=(srcfile_stat($file))[8];
660                                 my $mime="unknown";
661                                 eval q{use File::MimeInfo};
662                                 if (! $@) {
663                                         $mime = mimetype($file);
664                                 }
665                                 $itemtemplate->param(
666                                         enclosure => $u,
667                                         type => $mime,
668                                         length => $size,
669                                 );
670                         }
671                 }
672                 else {
673                         $itemtemplate->param(content => $pcontent);
674                 }
675
676                 run_hooks(pagetemplate => sub {
677                         shift->(page => $p, destpage => $page,
678                                 template => $itemtemplate);
679                 });
680
681                 $content.=$itemtemplate->output;
682                 $itemtemplate->clear_params;
683
684                 $lasttime = $pagemtime{$p} if $pagemtime{$p} > $lasttime;
685         }
686
687         my $template=template_depends($feedtype."page.tmpl", $page, blind_cache => 1);
688         $template->param(
689                 title => $page ne "index" ? pagetitle($page) : $config{wikiname},
690                 wikiname => $config{wikiname},
691                 pageurl => $url,
692                 content => $content,
693                 feeddesc => $feeddesc,
694                 guid => $guid,
695                 feeddate => date_3339($lasttime),
696                 feedurl => $feedurl,
697         );
698         run_hooks(pagetemplate => sub {
699                 shift->(page => $page, destpage => $page,
700                         template => $template);
701         });
702         
703         return $template->output;
704 }
705
706 sub pingurl (@) {
707         return unless @{$config{pingurl}} && %toping;
708
709         eval q{require RPC::XML::Client};
710         if ($@) {
711                 debug(gettext("RPC::XML::Client not found, not pinging"));
712                 return;
713         }
714
715         # daemonize here so slow pings don't slow down wiki updates
716         defined(my $pid = fork) or error("Can't fork: $!");
717         return if $pid;
718         chdir '/';
719         POSIX::setsid() or error("Can't start a new session: $!");
720         open STDIN, '/dev/null';
721         open STDOUT, '>/dev/null';
722         open STDERR, '>&STDOUT' or error("Can't dup stdout: $!");
723
724         # Don't need to keep a lock on the wiki as a daemon.
725         IkiWiki::unlockwiki();
726
727         foreach my $page (keys %toping) {
728                 my $title=pagetitle(basename($page), 0);
729                 my $url=urlto($page, "", 1);
730                 foreach my $pingurl (@{$config{pingurl}}) {
731                         debug("Pinging $pingurl for $page");
732                         eval {
733                                 my $client = RPC::XML::Client->new($pingurl);
734                                 my $req = RPC::XML::request->new('weblogUpdates.ping',
735                                         $title, $url);
736                                 my $res = $client->send_request($req);
737                                 if (! ref $res) {
738                                         error("Did not receive response to ping");
739                                 }
740                                 my $r=$res->value;
741                                 if (! exists $r->{flerror} || $r->{flerror}) {
742                                         error("Ping rejected: ".(exists $r->{message} ? $r->{message} : "[unknown reason]"));
743                                 }
744                         };
745                         if ($@) {
746                                 error "Ping failed: $@";
747                         }
748                 }
749         }
750
751         exit 0; # daemon done
752 }
753
754
755 sub rootpage (@) {
756         my %params=@_;
757
758         my $rootpage;
759         if (exists $params{rootpage}) {
760                 $rootpage=bestlink($params{page}, $params{rootpage});
761                 if (!length $rootpage) {
762                         $rootpage=$params{rootpage};
763                 }
764         }
765         else {
766                 $rootpage=$params{page};
767         }
768         return $rootpage;
769 }
770
771 1