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 IkiWiki 1.00;
   8 use URI;
   9
  10 sub import { #{{{
  11         hook(type => "getopt", id => "inline", call => \&getopt);
  12         hook(type => "checkconfig", id => "inline", call => \&checkconfig);
  13         hook(type => "preprocess", id => "inline",
  14                 call => \&IkiWiki::preprocess_inline);
  15         hook(type => "pagetemplate", id => "inline",
  16                 call => \&IkiWiki::pagetemplate_inline);
  17         # Hook to change to do pinging since it's called late.
  18         # This ensures each page only pings once and prevents slow
  19         # pings interrupting page builds.
  20         hook(type => "change", id => "inline",
  21                 call => \&IkiWiki::pingurl);
  22 } # }}}
  23
  24 sub getopt () { #{{{
  25         eval q{use Getopt::Long};
  26         error($@) if $@;
  27         Getopt::Long::Configure('pass_through');
  28         GetOptions(
  29                 "rss!" => \$config{rss},
  30                 "atom!" => \$config{atom},
  31         );
  32 }
  33
  34 sub checkconfig () { #{{{
  35         if (($config{rss} || $config{atom}) && ! length $config{url}) {
  36                 error(gettext("Must specify url to wiki with --url when using --rss or --atom"));
  37         }
  38         if ($config{rss}) {
  39                 push @{$config{wiki_file_prune_regexps}}, qr/\.rss$/;
  40         }
  41         if ($config{atom}) {
  42                 push @{$config{wiki_file_prune_regexps}}, qr/\.atom$/;
  43         }
  44 } #}}}
  45
  46 # Back to ikiwiki namespace for the rest, this code is very much
  47 # internal to ikiwiki even though it's separated into a plugin.
  48 package IkiWiki;
  49
  50 my %toping;
  51 my %feedlinks;
  52
  53 sub yesno ($) { #{{{
  54         my $val=shift;
  55         return (defined $val && lc($val) eq "yes");
  56 } #}}}
  57
  58 sub preprocess_inline (@) { #{{{
  59         my %params=@_;
  60
  61         if (! exists $params{pages}) {
  62                 return "";
  63         }
  64         my $raw=yesno($params{raw});
  65         my $archive=yesno($params{archive});
  66         my $rss=($config{rss} && exists $params{rss}) ? yesno($params{rss}) : $config{rss};
  67         my $atom=($config{atom} && exists $params{atom}) ? yesno($params{atom}) : $config{atom};
  68         my $quick=exists $params{quick} ? yesno($params{quick}) : 0;
  69         my $feeds=exists $params{feeds} ? yesno($params{feeds}) : !$quick;
  70         $feeds=0 if $params{preview};
  71         if (! exists $params{show} && ! $archive) {
  72                 $params{show}=10;
  73         }
  74         my $desc;
  75         if (exists $params{description}) {
  76                 $desc = $params{description}
  77         } else {
  78                 $desc = $config{wikiname};
  79         }
  80         my $actions=yesno($params{actions});
  81         if (exists $params{template}) {
  82                 $params{template}=~s/[^-_a-zA-Z0-9]+//g;
  83         }
  84         else {
  85                 $params{template} = $archive ? "archivepage" : "inlinepage";
  86         }
  87
  88         my @list;
  89         foreach my $page (keys %pagesources) {
  90                 next if $page eq $params{page};
  91                 if (pagespec_match($page, $params{pages}, $params{page})) {
  92                         push @list, $page;
  93                 }
  94         }
  95
  96         if (exists $params{sort} && $params{sort} eq 'title') {
  97                 @list=sort @list;
  98         }
  99         elsif (exists $params{sort} && $params{sort} eq 'mtime') {
 100                 @list=sort { $pagemtime{$b} <=> $pagemtime{$a} } @list;
 101         }
 102         elsif (! exists $params{sort} || $params{sort} eq 'age') {
 103                 @list=sort { $pagectime{$b} <=> $pagectime{$a} } @list;
 104         }
 105         else {
 106                 return sprintf(gettext("unknown sort type %s"), $params{sort});
 107         }
 108
 109         if (yesno($params{reverse})) {
 110                 @list=reverse(@list);
 111         }
 112
 113         if (exists $params{skip}) {
 114                 @list=@list[$params{skip} .. scalar @list - 1];
 115         }
 116
 117         if ($params{show} && @list > $params{show}) {
 118                 @list=@list[0..$params{show} - 1];
 119         }
 120
 121         add_depends($params{page}, $params{pages});
 122         # Explicitly add all currently displayed pages as dependencies, so
 123         # that if they are removed or otherwise changed, the inline will be
 124         # sure to be updated.
 125         add_depends($params{page}, join(" or ", @list));
 126
 127         my $rssurl=basename(rsspage($params{page}));
 128         my $atomurl=basename(atompage($params{page}));
 129         my $ret="";
 130
 131         if ($config{cgiurl} && (exists $params{rootpage} ||
 132                         (exists $params{postform} && yesno($params{postform})))) {
 133                 # Add a blog post form, with feed buttons.
 134                 my $formtemplate=template("blogpost.tmpl", blind_cache => 1);
 135                 $formtemplate->param(cgiurl => $config{cgiurl});
 136                 $formtemplate->param(rootpage =>
 137                         exists $params{rootpage} ? $params{rootpage} : $params{page});
 138                 $formtemplate->param(rssurl => $rssurl) if $feeds && $rss;
 139                 $formtemplate->param(atomurl => $atomurl) if $feeds && $atom;
 140                 $ret.=$formtemplate->output;
 141         }
 142         elsif ($feeds) {
 143                 # Add feed buttons.
 144                 my $linktemplate=template("feedlink.tmpl", blind_cache => 1);
 145                 $linktemplate->param(rssurl => $rssurl) if $rss;
 146                 $linktemplate->param(atomurl => $atomurl) if $atom;
 147                 $ret.=$linktemplate->output;
 148         }
 149
 150         my @params=IkiWiki::template_params($params{template}.".tmpl", blind_cache => 1);
 151         if (! @params) {
 152                 return sprintf(gettext("nonexistant template %s"), $params{template});
 153         }
 154         my $template=HTML::Template->new(@params) unless $raw;
 155
 156         foreach my $page (@list) {
 157                 my $file = $pagesources{$page};
 158                 my $type = pagetype($file);
 159                 if (! $raw || ($raw && ! defined $type)) {
 160                         unless ($archive && $quick) {
 161                                 # Get the content before populating the
 162                                 # template, since getting the content uses
 163                                 # the same template if inlines are nested.
 164                                 my $content=get_inline_content($page, $params{destpage});
 165                                 $template->param(content => $content);
 166                         }
 167                         $template->param(pageurl => urlto(bestlink($params{page}, $page), $params{destpage}));
 168                         $template->param(title => pagetitle(basename($page)));
 169                         $template->param(ctime => displaytime($pagectime{$page}));
 170
 171                         if ($actions) {
 172                                 my $file = $pagesources{$page};
 173                                 my $type = pagetype($file);
 174                                 if ($config{discussion}) {
 175                                         my $discussionlink=gettext("discussion");
 176                                         if ($page !~ /.*\/\Q$discussionlink\E$/ &&
 177                                             (length $config{cgiurl} ||
 178                                              exists $links{$page."/".$discussionlink})) {
 179                                                 $template->param(have_actions => 1);
 180                                                 $template->param(discussionlink =>
 181                                                         htmllink($page,
 182                                                                 $params{page},
 183                                                                 gettext("Discussion"),
 184                                                                 noimageinline => 1,
 185                                                                 forcesubpage => 1));
 186                                         }
 187                                 }
 188                                 if (length $config{cgiurl} && defined $type) {
 189                                         $template->param(have_actions => 1);
 190                                         $template->param(editurl => cgiurl(do => "edit", page => pagetitle($page, 1)));
 191                                 }
 192                         }
 193
 194                         run_hooks(pagetemplate => sub {
 195                                 shift->(page => $page, destpage => $params{page},
 196                                         template => $template,);
 197                         });
 198
 199                         $ret.=$template->output;
 200                         $template->clear_params;
 201                 }
 202                 else {
 203                         if (defined $type) {
 204                                 $ret.="\n".
 205                                       linkify($page, $params{page},
 206                                       preprocess($page, $params{page},
 207                                       filter($page,
 208                                       readfile(srcfile($file)))));
 209                         }
 210                 }
 211         }
 212
 213         if ($feeds) {
 214                 if (exists $params{feedshow} && @list > $params{feedshow}) {
 215                         @list=@list[0..$params{feedshow} - 1];
 216                 }
 217
 218                 if ($rss) {
 219                         my $rssp=rsspage($params{page});
 220                         will_render($params{page}, $rssp);
 221                         writefile($rssp, $config{destdir},
 222                                 genfeed("rss", $rssurl, $desc, $params{page}, @list));
 223                         $toping{$params{page}}=1 unless $config{rebuild};
 224                         $feedlinks{$params{destpage}}=qq{<link rel="alternate" type="application/rss+xml" title="RSS" href="$rssurl" />};
 225                 }
 226                 if ($atom) {
 227                         my $atomp=atompage($params{page});
 228                         will_render($params{page}, $atomp);
 229                         writefile($atomp, $config{destdir},
 230                                 genfeed("atom", $atomurl, $desc, $params{page}, @list));
 231                         $toping{$params{page}}=1 unless $config{rebuild};
 232                         $feedlinks{$params{destpage}}=qq{<link rel="alternate" type="application/atom+xml" title="Atom" href="$atomurl" />};
 233                 }
 234         }
 235
 236         return $ret;
 237 } #}}}
 238
 239 sub pagetemplate_inline (@) { #{{{
 240         my %params=@_;
 241         my $page=$params{page};
 242         my $template=$params{template};
 243
 244         $template->param(feedlinks => $feedlinks{$page})
 245                 if exists $feedlinks{$page} && $template->query(name => "feedlinks");
 246 } #}}}
 247
 248 sub get_inline_content ($$) { #{{{
 249         my $page=shift;
 250         my $destpage=shift;
 251
 252         my $file=$pagesources{$page};
 253         my $type=pagetype($file);
 254         if (defined $type) {
 255                 return htmlize($page, $type,
 256                        linkify($page, $destpage,
 257                        preprocess($page, $destpage,
 258                        filter($page,
 259                        readfile(srcfile($file))))));
 260         }
 261         else {
 262                 return "";
 263         }
 264 } #}}}
 265
 266 sub date_822 ($) { #{{{
 267         my $time=shift;
 268
 269         eval q{use POSIX};
 270         error($@) if $@;
 271         my $lc_time=POSIX::setlocale(&POSIX::LC_TIME);
 272         POSIX::setlocale(&POSIX::LC_TIME, "C");
 273         my $ret=POSIX::strftime("%a, %d %b %Y %H:%M:%S %z", localtime($time));
 274         POSIX::setlocale(&POSIX::LC_TIME, $lc_time);
 275         return $ret;
 276 } #}}}
 277
 278 sub date_3339 ($) { #{{{
 279         my $time=shift;
 280
 281         eval q{use POSIX};
 282         error($@) if $@;
 283         my $lc_time=POSIX::setlocale(&POSIX::LC_TIME);
 284         POSIX::setlocale(&POSIX::LC_TIME, "C");
 285         my $ret=POSIX::strftime("%Y-%m-%dT%H:%M:%SZ", localtime($time));
 286         POSIX::setlocale(&POSIX::LC_TIME, $lc_time);
 287         return $ret;
 288 } #}}}
 289
 290 sub absolute_urls ($$) { #{{{
 291         # sucky sub because rss sucks
 292         my $content=shift;
 293         my $baseurl=shift;
 294
 295         my $url=$baseurl;
 296         $url=~s/[^\/]+$//;
 297
 298         $content=~s/(<a(?:\s+(?:class|id)="?\w+"?)?)\s+href="(#[^"]+)"/$1 href="$baseurl$2"/ig;
 299         $content=~s/(<a(?:\s+(?:class|id)="?\w+"?)?)\s+href="(?!\w+:\/\/)([^"]+)"/$1 href="$url$2"/ig;
 300         $content=~s/(<img(?:\s+(?:class|id)="?\w+"?)?)\s+src="(?!\w+:\/\/)([^"]+)"/$1 src="$url$2"/ig;
 301         return $content;
 302 } #}}}
 303
 304 sub rsspage ($) { #{{{
 305         return targetpage(shift, "rss");
 306 } #}}}
 307
 308 sub atompage ($) { #{{{
 309         return targetpage(shift, "atom");
 310 } #}}}
 311
 312 sub genfeed ($$$$@) { #{{{
 313         my $feedtype=shift;
 314         my $feedurl=shift;
 315         my $feeddesc=shift;
 316         my $page=shift;
 317         my @pages=@_;
 318
 319         my $url=URI->new(encode_utf8($config{url}."/".htmlpage($page)));
 320
 321         my $itemtemplate=template($feedtype."item.tmpl", blind_cache => 1);
 322         my $content="";
 323         my $lasttime = 0;
 324         foreach my $p (@pages) {
 325                 my $u=URI->new(encode_utf8($config{url}."/".htmlpage($p)));
 326
 327                 my $pcontent = absolute_urls(get_inline_content($p, $page), $url);
 328
 329                 $itemtemplate->param(
 330                         title => pagetitle(basename($p), 1),
 331                         url => $u,
 332                         permalink => $u,
 333                         date_822 => date_822($pagectime{$p}),
 334                         date_3339 => date_3339($pagectime{$p}),
 335                 );
 336
 337                 if ($itemtemplate->query(name => "enclosure")) {
 338                         my $file=$pagesources{$p};
 339                         my $type=pagetype($file);
 340                         if (defined $type) {
 341                                 $itemtemplate->param(content => $pcontent);
 342                         }
 343                         else {
 344                                 my ($a, $b, $c, $d, $e, $f, $g, $size) = stat(srcfile($file));
 345                                 my $mime="unknown";
 346                                 eval q{use File::MimeInfo};
 347                                 if (! $@) {
 348                                         $mime = mimetype($file);
 349                                 }
 350                                 $itemtemplate->param(
 351                                         enclosure => $u,
 352                                         type => $mime,
 353                                         length => $size,
 354                                 );
 355                         }
 356                 }
 357                 else {
 358                         $itemtemplate->param(content => $pcontent);
 359                 }
 360
 361                 run_hooks(pagetemplate => sub {
 362                         shift->(page => $p, destpage => $page,
 363                                 template => $itemtemplate);
 364                 });
 365
 366                 $content.=$itemtemplate->output;
 367                 $itemtemplate->clear_params;
 368
 369                 $lasttime = $pagectime{$p} if $pagectime{$p} > $lasttime;
 370         }
 371
 372         my $template=template($feedtype."page.tmpl", blind_cache => 1);
 373         $template->param(
 374                 title => $page ne "index" ? pagetitle($page, 1) : $config{wikiname},
 375                 wikiname => $config{wikiname},
 376                 pageurl => $url,
 377                 content => $content,
 378                 feeddesc => $feeddesc,
 379                 feeddate => date_3339($lasttime),
 380                 feedurl => $feedurl,
 381                 version => $IkiWiki::version,
 382         );
 383         run_hooks(pagetemplate => sub {
 384                 shift->(page => $page, destpage => $page,
 385                         template => $template);
 386         });
 387
 388         return $template->output;
 389 } #}}}
 390
 391 sub pingurl (@) { #{{{
 392         return unless @{$config{pingurl}} && %toping;
 393
 394         eval q{require RPC::XML::Client};
 395         if ($@) {
 396                 debug(gettext("RPC::XML::Client not found, not pinging"));
 397                 return;
 398         }
 399
 400         # daemonize here so slow pings don't slow down wiki updates
 401         defined(my $pid = fork) or error("Can't fork: $!");
 402         return if $pid;
 403         chdir '/';
 404         eval q{use POSIX 'setsid'};
 405         setsid() or error("Can't start a new session: $!");
 406         open STDIN, '/dev/null';
 407         open STDOUT, '>/dev/null';
 408         open STDERR, '>&STDOUT' or error("Can't dup stdout: $!");
 409
 410         # Don't need to keep a lock on the wiki as a daemon.
 411         IkiWiki::unlockwiki();
 412
 413         foreach my $page (keys %toping) {
 414                 my $title=pagetitle(basename($page), 0);
 415                 my $url="$config{url}/".htmlpage($page);
 416                 foreach my $pingurl (@{$config{pingurl}}) {
 417                         debug("Pinging $pingurl for $page");
 418                         eval {
 419                                 my $client = RPC::XML::Client->new($pingurl);
 420                                 my $req = RPC::XML::request->new('weblogUpdates.ping',
 421                                         $title, $url);
 422                                 my $res = $client->send_request($req);
 423                                 if (! ref $res) {
 424                                         debug("Did not receive response to ping");
 425                                 }
 426                                 my $r=$res->value;
 427                                 if (! exists $r->{flerror} || $r->{flerror}) {
 428                                         debug("Ping rejected: ".(exists $r->{message} ? $r->{message} : "[unknown reason]"));
 429                                 }
 430                         };
 431                         if ($@) {
 432                                 debug "Ping failed: $@";
 433                         }
 434                 }
 435         }
 436
 437         exit 0; # daemon done
 438 } #}}}
 439
 440 1