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 2.00;
   9 use URI;
  10
  11 my %knownfeeds;
  12 my %page_numfeeds;
  13 my @inline;
  14 my $nested=0;
  15
  16 sub import { #{{{
  17         hook(type => "getopt", id => "inline", call => \&getopt);
  18         hook(type => "getsetup", id => "inline", call => \&getsetup);
  19         hook(type => "checkconfig", id => "inline", call => \&checkconfig);
  20         hook(type => "sessioncgi", id => "inline", call => \&sessioncgi);
  21         hook(type => "preprocess", id => "inline",
  22                 call => \&IkiWiki::preprocess_inline);
  23         hook(type => "pagetemplate", id => "inline",
  24                 call => \&IkiWiki::pagetemplate_inline);
  25         hook(type => "format", id => "inline", call => \&format);
  26         # Hook to change to do pinging since it's called late.
  27         # This ensures each page only pings once and prevents slow
  28         # pings interrupting page builds.
  29         hook(type => "change", id => "inline",
  30                 call => \&IkiWiki::pingurl);
  31 } # }}}
  32
  33 sub getopt () { #{{{
  34         eval q{use Getopt::Long};
  35         error($@) if $@;
  36         Getopt::Long::Configure('pass_through');
  37         GetOptions(
  38                 "rss!" => \$config{rss},
  39                 "atom!" => \$config{atom},
  40                 "allowrss!" => \$config{allowrss},
  41                 "allowatom!" => \$config{allowatom},
  42                 "pingurl=s" => sub {
  43                         push @{$config{pingurl}}, $_[1];
  44                 },
  45         );
  46 } #}}}
  47
  48 sub getsetup () { #{{{
  49         return
  50                 plugin => {
  51                         safe => 1,
  52                         rebuild => undef,
  53                 },
  54                 rss => {
  55                         type => "boolean",
  56                         example => 0,
  57                         description => "enable rss feeds by default?",
  58                         safe => 1,
  59                         rebuild => 1,
  60                 },
  61                 atom => {
  62                         type => "boolean",
  63                         example => 0,
  64                         description => "enable atom feeds by default?",
  65                         safe => 1,
  66                         rebuild => 1,
  67                 },
  68                 allowrss => {
  69                         type => "boolean",
  70                         example => 0,
  71                         description => "allow rss feeds to be used?",
  72                         safe => 1,
  73                         rebuild => 1,
  74                 },
  75                 allowatom => {
  76                         type => "boolean",
  77                         example => 0,
  78                         description => "allow atom feeds to be used?",
  79                         safe => 1,
  80                         rebuild => 1,
  81                 },
  82                 pingurl => {
  83                         type => "string",
  84                         example => "http://rpc.technorati.com/rpc/ping",
  85                         description => "urls to ping (using XML-RPC) on feed update",
  86                         safe => 1,
  87                         rebuild => 0,
  88                 },
  89 } #}}}
  90
  91 sub checkconfig () { #{{{
  92         if (($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', $page.$add);
 132                 # now go create the page
 133                 $q->param('do', 'create');
 134                 # make sure the editpage plugin in loaded
 135                 if (IkiWiki->can("cgi_editpage")) {
 136                         IkiWiki::cgi_editpage($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}) {
 156                 error gettext("missing pages parameter");
 157         }
 158         my $raw=yesno($params{raw});
 159         my $archive=yesno($params{archive});
 160         my $rss=(($config{rss} || $config{allowrss}) && exists $params{rss}) ? yesno($params{rss}) : $config{rss};
 161         my $atom=(($config{atom} || $config{allowatom}) && exists $params{atom}) ? yesno($params{atom}) : $config{atom};
 162         my $quick=exists $params{quick} ? yesno($params{quick}) : 0;
 163         my $feeds=exists $params{feeds} ? yesno($params{feeds}) : !$quick;
 164         my $feedonly=yesno($params{feedonly});
 165         if (! exists $params{show} && ! $archive) {
 166                 $params{show}=10;
 167         }
 168         if (! exists $params{feedshow} && exists $params{show}) {
 169                 $params{feedshow}=$params{show};
 170         }
 171         my $desc;
 172         if (exists $params{description}) {
 173                 $desc = $params{description}
 174         }
 175         else {
 176                 $desc = $config{wikiname};
 177         }
 178         my $actions=yesno($params{actions});
 179         if (exists $params{template}) {
 180                 $params{template}=~s/[^-_a-zA-Z0-9]+//g;
 181         }
 182         else {
 183                 $params{template} = $archive ? "archivepage" : "inlinepage";
 184         }
 185
 186         my @list;
 187         foreach my $page (keys %pagesources) {
 188                 next if $page eq $params{page};
 189                 if (pagespec_match($page, $params{pages}, location => $params{page})) {
 190                         push @list, $page;
 191                 }
 192         }
 193
 194         if (exists $params{sort} && $params{sort} eq 'title') {
 195                 @list=sort { pagetitle(basename($a)) cmp pagetitle(basename($b)) } @list;
 196         }
 197         elsif (exists $params{sort} && $params{sort} eq 'mtime') {
 198                 @list=sort { $pagemtime{$b} <=> $pagemtime{$a} } @list;
 199         }
 200         elsif (! exists $params{sort} || $params{sort} eq 'age') {
 201                 @list=sort { $pagectime{$b} <=> $pagectime{$a} } @list;
 202         }
 203         else {
 204                 return sprintf(gettext("unknown sort type %s"), $params{sort});
 205         }
 206
 207         if (yesno($params{reverse})) {
 208                 @list=reverse(@list);
 209         }
 210
 211         if (exists $params{skip}) {
 212                 @list=@list[$params{skip} .. scalar @list - 1];
 213         }
 214
 215         my @feedlist;
 216         if ($feeds) {
 217                 if (exists $params{feedshow} &&
 218                     $params{feedshow} && @list > $params{feedshow}) {
 219                         @feedlist=@list[0..$params{feedshow} - 1];
 220                 }
 221                 else {
 222                         @feedlist=@list;
 223                 }
 224         }
 225
 226         if ($params{show} && @list > $params{show}) {
 227                 @list=@list[0..$params{show} - 1];
 228         }
 229
 230         add_depends($params{page}, $params{pages});
 231         # Explicitly add all currently displayed pages as dependencies, so
 232         # that if they are removed or otherwise changed, the inline will be
 233         # sure to be updated.
 234         add_depends($params{page}, join(" or ", $#list >= $#feedlist ? @list : @feedlist));
 235
 236         my $feednum="";
 237
 238         my $feedid=join("\0", map { $_."\0".$params{$_} } sort keys %params);
 239         if (exists $knownfeeds{$feedid}) {
 240                 $feednum=$knownfeeds{$feedid};
 241         }
 242         else {
 243                 if (exists $page_numfeeds{$params{destpage}}) {
 244                         if ($feeds) {
 245                                 $feednum=$knownfeeds{$feedid}=++$page_numfeeds{$params{destpage}};
 246                         }
 247                 }
 248                 else {
 249                         $feednum=$knownfeeds{$feedid}="";
 250                         if ($feeds) {
 251                                 $page_numfeeds{$params{destpage}}=1;
 252                         }
 253                 }
 254         }
 255
 256         my $rssurl=basename(rsspage($params{destpage}).$feednum) if $feeds && $rss;
 257         my $atomurl=basename(atompage($params{destpage}).$feednum) if $feeds && $atom;
 258         my $ret="";
 259
 260         if (length $config{cgiurl} && ! $params{preview} && (exists $params{rootpage} ||
 261             (exists $params{postform} && yesno($params{postform}))) &&
 262             IkiWiki->can("cgi_editpage")) {
 263                 # Add a blog post form, with feed buttons.
 264                 my $formtemplate=template("blogpost.tmpl", blind_cache => 1);
 265                 $formtemplate->param(cgiurl => $config{cgiurl});
 266                 my $rootpage;
 267                 if (exists $params{rootpage}) {
 268                         $rootpage=bestlink($params{page}, $params{rootpage});
 269                         if (!length $rootpage) {
 270                                 $rootpage=$params{rootpage};
 271                         }
 272                 }
 273                 else {
 274                         $rootpage=$params{page};
 275                 }
 276                 $formtemplate->param(rootpage => $rootpage);
 277                 $formtemplate->param(rssurl => $rssurl) if $feeds && $rss;
 278                 $formtemplate->param(atomurl => $atomurl) if $feeds && $atom;
 279                 if (exists $params{postformtext}) {
 280                         $formtemplate->param(postformtext =>
 281                                 $params{postformtext});
 282                 }
 283                 else {
 284                         $formtemplate->param(postformtext =>
 285                                 gettext("Add a new post titled:"));
 286                 }
 287                 $ret.=$formtemplate->output;
 288         }
 289         elsif ($feeds && !$params{preview}) {
 290                 # Add feed buttons.
 291                 my $linktemplate=template("feedlink.tmpl", blind_cache => 1);
 292                 $linktemplate->param(rssurl => $rssurl) if $rss;
 293                 $linktemplate->param(atomurl => $atomurl) if $atom;
 294                 $ret.=$linktemplate->output;
 295         }
 296
 297         if (! $feedonly) {
 298                 require HTML::Template;
 299                 my @params=IkiWiki::template_params($params{template}.".tmpl", blind_cache => 1);
 300                 if (! @params) {
 301                         return sprintf(gettext("nonexistant template %s"), $params{template});
 302                 }
 303                 my $template=HTML::Template->new(@params) unless $raw;
 304
 305                 foreach my $page (@list) {
 306                         my $file = $pagesources{$page};
 307                         my $type = pagetype($file);
 308                         if (! $raw || ($raw && ! defined $type)) {
 309                                 unless ($archive && $quick) {
 310                                         # Get the content before populating the
 311                                         # template, since getting the content uses
 312                                         # the same template if inlines are nested.
 313                                         my $content=get_inline_content($page, $params{destpage});
 314                                         $template->param(content => $content);
 315                                 }
 316                                 $template->param(pageurl => urlto(bestlink($params{page}, $page), $params{destpage}));
 317                                 $template->param(title => pagetitle(basename($page)));
 318                                 $template->param(ctime => displaytime($pagectime{$page}, $params{timeformat}));
 319                                 $template->param(mtime => displaytime($pagemtime{$page}, $params{timeformat}));
 320                                 $template->param(first => 1) if $page eq $list[0];
 321                                 $template->param(last => 1) if $page eq $list[$#list];
 322
 323                                 if ($actions) {
 324                                         my $file = $pagesources{$page};
 325                                         my $type = pagetype($file);
 326                                         if ($config{discussion}) {
 327                                                 my $discussionlink=gettext("discussion");
 328                                                 if ($page !~ /.*\/\Q$discussionlink\E$/ &&
 329                                                     (length $config{cgiurl} ||
 330                                                      exists $links{$page."/".$discussionlink})) {
 331                                                         $template->param(have_actions => 1);
 332                                                         $template->param(discussionlink =>
 333                                                                 htmllink($page,
 334                                                                         $params{destpage},
 335                                                                         gettext("Discussion"),
 336                                                                         noimageinline => 1,
 337                                                                         forcesubpage => 1));
 338                                                 }
 339                                         }
 340                                         if (length $config{cgiurl} && defined $type) {
 341                                                 $template->param(have_actions => 1);
 342                                                 $template->param(editurl => cgiurl(do => "edit", page => $page));
 343                                         }
 344                                 }
 345
 346                                 run_hooks(pagetemplate => sub {
 347                                         shift->(page => $page, destpage => $params{destpage},
 348                                                 template => $template,);
 349                                 });
 350
 351                                 $ret.=$template->output;
 352                                 $template->clear_params;
 353                         }
 354                         else {
 355                                 if (defined $type) {
 356                                         $ret.="\n".
 357                                               linkify($page, $params{destpage},
 358                                               preprocess($page, $params{destpage},
 359                                               filter($page, $params{destpage},
 360                                               readfile(srcfile($file)))));
 361                                 }
 362                         }
 363                 }
 364         }
 365
 366         if ($feeds) {
 367                 if (exists $params{feedpages}) {
 368                         @feedlist=grep { pagespec_match($_, $params{feedpages}, location => $params{page}) } @feedlist;
 369                 }
 370
 371                 if ($rss) {
 372                         my $rssp=rsspage($params{destpage}).$feednum;
 373                         will_render($params{destpage}, $rssp);
 374                         if (! $params{preview}) {
 375                                 writefile($rssp, $config{destdir},
 376                                         genfeed("rss",
 377                                                 $config{url}."/".$rssp, $desc, $params{guid}, $params{destpage}, @feedlist));
 378                                 $toping{$params{destpage}}=1 unless $config{rebuild};
 379                                 $feedlinks{$params{destpage}}=qq{<link rel="alternate" type="application/rss+xml" title="RSS" href="$rssurl" />};
 380                         }
 381                 }
 382                 if ($atom) {
 383                         my $atomp=atompage($params{destpage}).$feednum;
 384                         will_render($params{destpage}, $atomp);
 385                         if (! $params{preview}) {
 386                                 writefile($atomp, $config{destdir},
 387                                         genfeed("atom", $config{url}."/".$atomp, $desc, $params{guid}, $params{destpage}, @feedlist));
 388                                 $toping{$params{destpage}}=1 unless $config{rebuild};
 389                                 $feedlinks{$params{destpage}}=qq{<link rel="alternate" type="application/atom+xml" title="Atom" href="$atomurl" />};
 390                         }
 391                 }
 392         }
 393
 394         return $ret if $raw || $nested;
 395         push @inline, $ret;
 396         return "<div class=\"inline\" id=\"$#inline\"></div>\n\n";
 397 } #}}}
 398
 399 sub pagetemplate_inline (@) { #{{{
 400         my %params=@_;
 401         my $page=$params{page};
 402         my $template=$params{template};
 403
 404         $template->param(feedlinks => $feedlinks{$page})
 405                 if exists $feedlinks{$page} && $template->query(name => "feedlinks");
 406 } #}}}
 407
 408 sub get_inline_content ($$) { #{{{
 409         my $page=shift;
 410         my $destpage=shift;
 411
 412         my $file=$pagesources{$page};
 413         my $type=pagetype($file);
 414         if (defined $type) {
 415                 $nested++;
 416                 my $ret=htmlize($page, $destpage, $type,
 417                        linkify($page, $destpage,
 418                        preprocess($page, $destpage,
 419                        filter($page, $destpage,
 420                        readfile(srcfile($file))))));
 421                 $nested--;
 422                 return $ret;
 423         }
 424         else {
 425                 return "";
 426         }
 427 } #}}}
 428
 429 sub date_822 ($) { #{{{
 430         my $time=shift;
 431
 432         my $lc_time=POSIX::setlocale(&POSIX::LC_TIME);
 433         POSIX::setlocale(&POSIX::LC_TIME, "C");
 434         my $ret=POSIX::strftime("%a, %d %b %Y %H:%M:%S %z", localtime($time));
 435         POSIX::setlocale(&POSIX::LC_TIME, $lc_time);
 436         return $ret;
 437 } #}}}
 438
 439 sub date_3339 ($) { #{{{
 440         my $time=shift;
 441
 442         my $lc_time=POSIX::setlocale(&POSIX::LC_TIME);
 443         POSIX::setlocale(&POSIX::LC_TIME, "C");
 444         my $ret=POSIX::strftime("%Y-%m-%dT%H:%M:%SZ", gmtime($time));
 445         POSIX::setlocale(&POSIX::LC_TIME, $lc_time);
 446         return $ret;
 447 } #}}}
 448
 449 sub absolute_urls ($$) { #{{{
 450         # sucky sub because rss sucks
 451         my $content=shift;
 452         my $baseurl=shift;
 453
 454         my $url=$baseurl;
 455         $url=~s/[^\/]+$//;
 456
 457         # what is the non path part of the url?
 458         my $top_uri = URI->new($url);
 459         $top_uri->path_query(""); # reset the path
 460         my $urltop = $top_uri->as_string;
 461
 462         $content=~s/(<a(?:\s+(?:class|id)\s*="?\w+"?)?)\s+href=\s*"(#[^"]+)"/$1 href="$baseurl$2"/mig;
 463         # relative to another wiki page
 464         $content=~s/(<a(?:\s+(?:class|id)\s*="?\w+"?)?)\s+href=\s*"(?!\w+:)([^\/][^"]*)"/$1 href="$url$2"/mig;
 465         $content=~s/(<img(?:\s+(?:class|id|width|height)\s*="?\w+"?)*)\s+src=\s*"(?!\w+:)([^\/][^"]*)"/$1 src="$url$2"/mig;
 466         # relative to the top of the site
 467         $content=~s/(<a(?:\s+(?:class|id)\s*="?\w+"?)?)\s+href=\s*"(?!\w+:)(\/[^"]*)"/$1 href="$urltop$2"/mig;
 468         $content=~s/(<img(?:\s+(?:class|id|width|height)\s*="?\w+"?)*)\s+src=\s*"(?!\w+:)(\/[^"]*)"/$1 src="$urltop$2"/mig;
 469         return $content;
 470 } #}}}
 471
 472 sub rsspage ($) { #{{{
 473         return targetpage(shift, "rss");
 474 } #}}}
 475
 476 sub atompage ($) { #{{{
 477         return targetpage(shift, "atom");
 478 } #}}}
 479
 480 sub genfeed ($$$$$@) { #{{{
 481         my $feedtype=shift;
 482         my $feedurl=shift;
 483         my $feeddesc=shift;
 484         my $guid=shift;
 485         my $page=shift;
 486         my @pages=@_;
 487
 488         my $url=URI->new(encode_utf8(urlto($page,"",1)));
 489
 490         my $itemtemplate=template($feedtype."item.tmpl", blind_cache => 1);
 491         my $content="";
 492         my $lasttime = 0;
 493         foreach my $p (@pages) {
 494                 my $u=URI->new(encode_utf8(urlto($p, "", 1)));
 495                 my $pcontent = absolute_urls(get_inline_content($p, $page), $url);
 496
 497                 $itemtemplate->param(
 498                         title => pagetitle(basename($p)),
 499                         url => $u,
 500                         permalink => $u,
 501                         cdate_822 => date_822($pagectime{$p}),
 502                         mdate_822 => date_822($pagemtime{$p}),
 503                         cdate_3339 => date_3339($pagectime{$p}),
 504                         mdate_3339 => date_3339($pagemtime{$p}),
 505                 );
 506
 507                 if (exists $pagestate{$p} &&
 508                     exists $pagestate{$p}{meta}{guid}) {
 509                         $itemtemplate->param(guid => $pagestate{$p}{meta}{guid});
 510                 }
 511
 512                 if ($itemtemplate->query(name => "enclosure")) {
 513                         my $file=$pagesources{$p};
 514                         my $type=pagetype($file);
 515                         if (defined $type) {
 516                                 $itemtemplate->param(content => $pcontent);
 517                         }
 518                         else {
 519                                 my $size=(srcfile_stat($file))[8];
 520                                 my $mime="unknown";
 521                                 eval q{use File::MimeInfo};
 522                                 if (! $@) {
 523                                         $mime = mimetype($file);
 524                                 }
 525                                 $itemtemplate->param(
 526                                         enclosure => $u,
 527                                         type => $mime,
 528                                         length => $size,
 529                                 );
 530                         }
 531                 }
 532                 else {
 533                         $itemtemplate->param(content => $pcontent);
 534                 }
 535
 536                 run_hooks(pagetemplate => sub {
 537                         shift->(page => $p, destpage => $page,
 538                                 template => $itemtemplate);
 539                 });
 540
 541                 $content.=$itemtemplate->output;
 542                 $itemtemplate->clear_params;
 543
 544                 $lasttime = $pagemtime{$p} if $pagemtime{$p} > $lasttime;
 545         }
 546
 547         my $template=template($feedtype."page.tmpl", blind_cache => 1);
 548         $template->param(
 549                 title => $page ne "index" ? pagetitle($page) : $config{wikiname},
 550                 wikiname => $config{wikiname},
 551                 pageurl => $url,
 552                 content => $content,
 553                 feeddesc => $feeddesc,
 554                 guid => $guid,
 555                 feeddate => date_3339($lasttime),
 556                 feedurl => $feedurl,
 557                 version => $IkiWiki::version,
 558         );
 559         run_hooks(pagetemplate => sub {
 560                 shift->(page => $page, destpage => $page,
 561                         template => $template);
 562         });
 563
 564         return $template->output;
 565 } #}}}
 566
 567 sub pingurl (@) { #{{{
 568         return unless @{$config{pingurl}} && %toping;
 569
 570         eval q{require RPC::XML::Client};
 571         if ($@) {
 572                 debug(gettext("RPC::XML::Client not found, not pinging"));
 573                 return;
 574         }
 575
 576         # daemonize here so slow pings don't slow down wiki updates
 577         defined(my $pid = fork) or error("Can't fork: $!");
 578         return if $pid;
 579         chdir '/';
 580         POSIX::setsid() or error("Can't start a new session: $!");
 581         open STDIN, '/dev/null';
 582         open STDOUT, '>/dev/null';
 583         open STDERR, '>&STDOUT' or error("Can't dup stdout: $!");
 584
 585         # Don't need to keep a lock on the wiki as a daemon.
 586         IkiWiki::unlockwiki();
 587
 588         foreach my $page (keys %toping) {
 589                 my $title=pagetitle(basename($page), 0);
 590                 my $url=urlto($page, "", 1);
 591                 foreach my $pingurl (@{$config{pingurl}}) {
 592                         debug("Pinging $pingurl for $page");
 593                         eval {
 594                                 my $client = RPC::XML::Client->new($pingurl);
 595                                 my $req = RPC::XML::request->new('weblogUpdates.ping',
 596                                         $title, $url);
 597                                 my $res = $client->send_request($req);
 598                                 if (! ref $res) {
 599                                         error("Did not receive response to ping");
 600                                 }
 601                                 my $r=$res->value;
 602                                 if (! exists $r->{flerror} || $r->{flerror}) {
 603                                         error("Ping rejected: ".(exists $r->{message} ? $r->{message} : "[unknown reason]"));
 604                                 }
 605                         };
 606                         if ($@) {
 607                                 error "Ping failed: $@";
 608                         }
 609                 }
 610         }
 611
 612         exit 0; # daemon done
 613 } #}}}
 614
 615 1