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
  14 sub import { #{{{
  15         hook(type => "getopt", id => "inline", call => \&getopt);
  16         hook(type => "checkconfig", id => "inline", call => \&checkconfig);
  17         hook(type => "sessioncgi", id => "skeleton", call => \&sessioncgi);
  18         hook(type => "preprocess", id => "inline",
  19                 call => \&IkiWiki::preprocess_inline);
  20         hook(type => "pagetemplate", id => "inline",
  21                 call => \&IkiWiki::pagetemplate_inline);
  22         # Hook to change to do pinging since it's called late.
  23         # This ensures each page only pings once and prevents slow
  24         # pings interrupting page builds.
  25         hook(type => "change", id => "inline",
  26                 call => \&IkiWiki::pingurl);
  27
  28 } # }}}
  29
  30 sub getopt () { #{{{
  31         eval q{use Getopt::Long};
  32         error($@) if $@;
  33         Getopt::Long::Configure('pass_through');
  34         GetOptions(
  35                 "rss!" => \$config{rss},
  36                 "atom!" => \$config{atom},
  37         );
  38 }
  39
  40 sub checkconfig () { #{{{
  41         if (($config{rss} || $config{atom}) && ! length $config{url}) {
  42                 error(gettext("Must specify url to wiki with --url when using --rss or --atom"));
  43         }
  44         if ($config{rss}) {
  45                 push @{$config{wiki_file_prune_regexps}}, qr/\.rss$/;
  46         }
  47         if ($config{atom}) {
  48                 push @{$config{wiki_file_prune_regexps}}, qr/\.atom$/;
  49         }
  50 } #}}}
  51
  52 sub sessioncgi () { #{{{
  53         my $q=shift;
  54         my $session=shift;
  55
  56         if ($q->param('do') eq 'blog') {
  57                 my $page=decode_utf8($q->param('title'));
  58                 $page=~s/\///g; # no slashes in blog posts
  59                 # if the page already exists, munge it to be unique
  60                 my $from=$q->param('from');
  61                 my $add="";
  62                 while (exists $IkiWiki::pagecase{lc($from."/".IkiWiki::titlepage($page).$add)}) {
  63                         $add=1 unless length $add;
  64                         $add++;
  65                 }
  66                 $q->param('page', $page.$add);
  67                 # now go create the page
  68                 $q->param('do', 'create');
  69                 IkiWiki::cgi_editpage($q, $session);
  70                 exit;
  71         }
  72 }
  73
  74 # Back to ikiwiki namespace for the rest, this code is very much
  75 # internal to ikiwiki even though it's separated into a plugin.
  76 package IkiWiki;
  77
  78 my %toping;
  79 my %feedlinks;
  80
  81 sub yesno ($) { #{{{
  82         my $val=shift;
  83         return (defined $val && lc($val) eq "yes");
  84 } #}}}
  85
  86 sub preprocess_inline (@) { #{{{
  87         my %params=@_;
  88
  89         if (! exists $params{pages}) {
  90                 return "";
  91         }
  92         my $raw=yesno($params{raw});
  93         my $archive=yesno($params{archive});
  94         my $rss=($config{rss} && exists $params{rss}) ? yesno($params{rss}) : $config{rss};
  95         my $atom=($config{atom} && exists $params{atom}) ? yesno($params{atom}) : $config{atom};
  96         my $quick=exists $params{quick} ? yesno($params{quick}) : 0;
  97         my $feeds=exists $params{feeds} ? yesno($params{feeds}) : !$quick;
  98         $feeds=0 if $params{preview};
  99         my $feedonly=yesno($params{feedonly});
 100         if (! exists $params{show} && ! $archive) {
 101                 $params{show}=10;
 102         }
 103         my $desc;
 104         if (exists $params{description}) {
 105                 $desc = $params{description}
 106         } else {
 107                 $desc = $config{wikiname};
 108         }
 109         my $actions=yesno($params{actions});
 110         if (exists $params{template}) {
 111                 $params{template}=~s/[^-_a-zA-Z0-9]+//g;
 112         }
 113         else {
 114                 $params{template} = $archive ? "archivepage" : "inlinepage";
 115         }
 116
 117         my @list;
 118         foreach my $page (keys %pagesources) {
 119                 next if $page eq $params{page};
 120                 if (pagespec_match($page, $params{pages}, location => $params{page})) {
 121                         push @list, $page;
 122                 }
 123         }
 124
 125         if (exists $params{sort} && $params{sort} eq 'title') {
 126                 @list=sort @list;
 127         }
 128         elsif (exists $params{sort} && $params{sort} eq 'mtime') {
 129                 @list=sort { $pagemtime{$b} <=> $pagemtime{$a} } @list;
 130         }
 131         elsif (! exists $params{sort} || $params{sort} eq 'age') {
 132                 @list=sort { $pagectime{$b} <=> $pagectime{$a} } @list;
 133         }
 134         else {
 135                 return sprintf(gettext("unknown sort type %s"), $params{sort});
 136         }
 137
 138         if (yesno($params{reverse})) {
 139                 @list=reverse(@list);
 140         }
 141
 142         if (exists $params{skip}) {
 143                 @list=@list[$params{skip} .. scalar @list - 1];
 144         }
 145
 146         if ($params{show} && @list > $params{show}) {
 147                 @list=@list[0..$params{show} - 1];
 148         }
 149
 150         add_depends($params{page}, $params{pages});
 151         # Explicitly add all currently displayed pages as dependencies, so
 152         # that if they are removed or otherwise changed, the inline will be
 153         # sure to be updated.
 154         add_depends($params{page}, join(" or ", @list));
 155
 156         my $feednum="";
 157
 158         my $feedid=join("\0", map { $_."\0".$params{$_} } sort keys %params);
 159         if (exists $knownfeeds{$feedid}) {
 160                 $feednum=$knownfeeds{$feedid};
 161         }
 162         else {
 163                 if (exists $page_numfeeds{$params{destpage}}) {
 164                         $feednum=$knownfeeds{$feedid}=++$page_numfeeds{$params{destpage}};
 165                 }
 166                 else {
 167                         $feednum=$knownfeeds{$feedid}="";
 168                         $page_numfeeds{$params{destpage}}=1;
 169                 }
 170         }
 171
 172         my $rssurl=basename(rsspage($params{destpage}).$feednum);
 173         my $atomurl=basename(atompage($params{destpage}).$feednum);
 174         my $ret="";
 175
 176         if ($config{cgiurl} && (exists $params{rootpage} ||
 177                         (exists $params{postform} && yesno($params{postform})))) {
 178                 # Add a blog post form, with feed buttons.
 179                 my $formtemplate=template("blogpost.tmpl", blind_cache => 1);
 180                 $formtemplate->param(cgiurl => $config{cgiurl});
 181                 $formtemplate->param(rootpage =>
 182                         exists $params{rootpage} ? $params{rootpage} : $params{page});
 183                 $formtemplate->param(rssurl => $rssurl) if $feeds && $rss;
 184                 $formtemplate->param(atomurl => $atomurl) if $feeds && $atom;
 185                 if (exists $params{postformtext}) {
 186                         $formtemplate->param(postformtext =>
 187                                 $params{postformtext});
 188                 }
 189                 else {
 190                         $formtemplate->param(postformtext =>
 191                                 gettext("Add a new post titled:"));
 192                 }
 193                 $ret.=$formtemplate->output;
 194         }
 195         elsif ($feeds) {
 196                 # Add feed buttons.
 197                 my $linktemplate=template("feedlink.tmpl", blind_cache => 1);
 198                 $linktemplate->param(rssurl => $rssurl) if $rss;
 199                 $linktemplate->param(atomurl => $atomurl) if $atom;
 200                 $ret.=$linktemplate->output;
 201         }
 202
 203         if (! $feedonly) {
 204                 require HTML::Template;
 205                 my @params=IkiWiki::template_params($params{template}.".tmpl", blind_cache => 1);
 206                 if (! @params) {
 207                         return sprintf(gettext("nonexistant template %s"), $params{template});
 208                 }
 209                 my $template=HTML::Template->new(@params) unless $raw;
 210
 211                 foreach my $page (@list) {
 212                         my $file = $pagesources{$page};
 213                         my $type = pagetype($file);
 214                         if (! $raw || ($raw && ! defined $type)) {
 215                                 unless ($archive && $quick) {
 216                                         # Get the content before populating the
 217                                         # template, since getting the content uses
 218                                         # the same template if inlines are nested.
 219                                         my $content=get_inline_content($page, $params{destpage});
 220                                         $template->param(content => $content);
 221                                 }
 222                                 $template->param(pageurl => urlto(bestlink($params{page}, $page), $params{destpage}));
 223                                 $template->param(title => pagetitle(basename($page)));
 224                                 $template->param(ctime => displaytime($pagectime{$page}));
 225
 226                                 if ($actions) {
 227                                         my $file = $pagesources{$page};
 228                                         my $type = pagetype($file);
 229                                         if ($config{discussion}) {
 230                                                 my $discussionlink=gettext("discussion");
 231                                                 if ($page !~ /.*\/\Q$discussionlink\E$/ &&
 232                                                     (length $config{cgiurl} ||
 233                                                      exists $links{$page."/".$discussionlink})) {
 234                                                         $template->param(have_actions => 1);
 235                                                         $template->param(discussionlink =>
 236                                                                 htmllink($page,
 237                                                                         $params{destpage},
 238                                                                         gettext("Discussion"),
 239                                                                         noimageinline => 1,
 240                                                                         forcesubpage => 1));
 241                                                 }
 242                                         }
 243                                         if (length $config{cgiurl} && defined $type) {
 244                                                 $template->param(have_actions => 1);
 245                                                 $template->param(editurl => cgiurl(do => "edit", page => pagetitle($page, 1)));
 246                                         }
 247                                 }
 248
 249                                 run_hooks(pagetemplate => sub {
 250                                         shift->(page => $page, destpage => $params{destpage},
 251                                                 template => $template,);
 252                                 });
 253
 254                                 $ret.=$template->output;
 255                                 $template->clear_params;
 256                         }
 257                         else {
 258                                 if (defined $type) {
 259                                         $ret.="\n".
 260                                               linkify($page, $params{destpage},
 261                                               preprocess($page, $params{destpage},
 262                                               filter($page, $params{destpage},
 263                                               readfile(srcfile($file)))));
 264                                 }
 265                         }
 266                 }
 267         }
 268
 269         if ($feeds) {
 270                 if (exists $params{feedshow} && @list > $params{feedshow}) {
 271                         @list=@list[0..$params{feedshow} - 1];
 272                 }
 273                 if (exists $params{feedpages}) {
 274                         @list=grep { pagespec_match($_, $params{feedpages}, location => $params{page}) } @list;
 275                 }
 276
 277                 if ($rss) {
 278                         my $rssp=rsspage($params{destpage}).$feednum;
 279                         will_render($params{destpage}, $rssp);
 280                         writefile($rssp, $config{destdir},
 281                                 genfeed("rss", $rssurl, $desc, $params{destpage}, @list));
 282                         $toping{$params{destpage}}=1 unless $config{rebuild};
 283                         $feedlinks{$params{destpage}}=qq{<link rel="alternate" type="application/rss+xml" title="RSS" href="$rssurl" />};
 284                 }
 285                 if ($atom) {
 286                         my $atomp=atompage($params{destpage}).$feednum;
 287                         will_render($params{destpage}, $atomp);
 288                         writefile($atomp, $config{destdir},
 289                                 genfeed("atom", $atomurl, $desc, $params{destpage}, @list));
 290                         $toping{$params{destpage}}=1 unless $config{rebuild};
 291                         $feedlinks{$params{destpage}}=qq{<link rel="alternate" type="application/atom+xml" title="Atom" href="$atomurl" />};
 292                 }
 293         }
 294
 295         return $ret;
 296 } #}}}
 297
 298 sub pagetemplate_inline (@) { #{{{
 299         my %params=@_;
 300         my $page=$params{page};
 301         my $template=$params{template};
 302
 303         $template->param(feedlinks => $feedlinks{$page})
 304                 if exists $feedlinks{$page} && $template->query(name => "feedlinks");
 305 } #}}}
 306
 307 sub get_inline_content ($$) { #{{{
 308         my $page=shift;
 309         my $destpage=shift;
 310
 311         my $file=$pagesources{$page};
 312         my $type=pagetype($file);
 313         if (defined $type) {
 314                 return htmlize($page, $type,
 315                        linkify($page, $destpage,
 316                        preprocess($page, $destpage,
 317                        filter($page, $destpage,
 318                        readfile(srcfile($file))))));
 319         }
 320         else {
 321                 return "";
 322         }
 323 } #}}}
 324
 325 sub date_822 ($) { #{{{
 326         my $time=shift;
 327
 328         my $lc_time=POSIX::setlocale(&POSIX::LC_TIME);
 329         POSIX::setlocale(&POSIX::LC_TIME, "C");
 330         my $ret=POSIX::strftime("%a, %d %b %Y %H:%M:%S %z", localtime($time));
 331         POSIX::setlocale(&POSIX::LC_TIME, $lc_time);
 332         return $ret;
 333 } #}}}
 334
 335 sub date_3339 ($) { #{{{
 336         my $time=shift;
 337
 338         my $lc_time=POSIX::setlocale(&POSIX::LC_TIME);
 339         POSIX::setlocale(&POSIX::LC_TIME, "C");
 340         my $ret=POSIX::strftime("%Y-%m-%dT%H:%M:%SZ", gmtime($time));
 341         POSIX::setlocale(&POSIX::LC_TIME, $lc_time);
 342         return $ret;
 343 } #}}}
 344
 345 sub absolute_urls ($$) { #{{{
 346         # sucky sub because rss sucks
 347         my $content=shift;
 348         my $baseurl=shift;
 349
 350         my $url=$baseurl;
 351         $url=~s/[^\/]+$//;
 352
 353         $content=~s/(<a(?:\s+(?:class|id)\s*="?\w+"?)?)\s+href=\s*"(#[^"]+)"/$1 href="$baseurl$2"/mig;
 354         $content=~s/(<a(?:\s+(?:class|id)\s*="?\w+"?)?)\s+href=\s*"(?!\w+:\/\/)([^"]+)"/$1 href="$url$2"/mig;
 355         $content=~s/(<img(?:\s+(?:class|id|width|height)\s*="?\w+"?)*)\s+src=\s*"(?!\w+:\/\/)([^"]+)"/$1 src="$url$2"/mig;
 356         return $content;
 357 } #}}}
 358
 359 sub rsspage ($) { #{{{
 360         return targetpage(shift, "rss");
 361 } #}}}
 362
 363 sub atompage ($) { #{{{
 364         return targetpage(shift, "atom");
 365 } #}}}
 366
 367 sub genfeed ($$$$@) { #{{{
 368         my $feedtype=shift;
 369         my $feedurl=shift;
 370         my $feeddesc=shift;
 371         my $page=shift;
 372         my @pages=@_;
 373
 374         my $url=URI->new(encode_utf8($config{url}."/".urlto($page,"")));
 375
 376         my $itemtemplate=template($feedtype."item.tmpl", blind_cache => 1);
 377         my $content="";
 378         my $lasttime = 0;
 379         foreach my $p (@pages) {
 380                 my $u=URI->new(encode_utf8($config{url}."/".urlto($p, "")));
 381                 my $pcontent = absolute_urls(get_inline_content($p, $page), $url);
 382
 383                 $itemtemplate->param(
 384                         title => pagetitle(basename($p)),
 385                         url => $u,
 386                         permalink => $u,
 387                         cdate_822 => date_822($pagectime{$p}),
 388                         mdate_822 => date_822($pagemtime{$p}),
 389                         cdate_3339 => date_3339($pagectime{$p}),
 390                         mdate_3339 => date_3339($pagemtime{$p}),
 391                 );
 392
 393                 if ($itemtemplate->query(name => "enclosure")) {
 394                         my $file=$pagesources{$p};
 395                         my $type=pagetype($file);
 396                         if (defined $type) {
 397                                 $itemtemplate->param(content => $pcontent);
 398                         }
 399                         else {
 400                                 my ($a, $b, $c, $d, $e, $f, $g, $size) = stat(srcfile($file));
 401                                 my $mime="unknown";
 402                                 eval q{use File::MimeInfo};
 403                                 if (! $@) {
 404                                         $mime = mimetype($file);
 405                                 }
 406                                 $itemtemplate->param(
 407                                         enclosure => $u,
 408                                         type => $mime,
 409                                         length => $size,
 410                                 );
 411                         }
 412                 }
 413                 else {
 414                         $itemtemplate->param(content => $pcontent);
 415                 }
 416
 417                 run_hooks(pagetemplate => sub {
 418                         shift->(page => $p, destpage => $page,
 419                                 template => $itemtemplate);
 420                 });
 421
 422                 $content.=$itemtemplate->output;
 423                 $itemtemplate->clear_params;
 424
 425                 $lasttime = $pagemtime{$p} if $pagemtime{$p} > $lasttime;
 426         }
 427
 428         my $template=template($feedtype."page.tmpl", blind_cache => 1);
 429         $template->param(
 430                 title => $page ne "index" ? pagetitle($page) : $config{wikiname},
 431                 wikiname => $config{wikiname},
 432                 pageurl => $url,
 433                 content => $content,
 434                 feeddesc => $feeddesc,
 435                 feeddate => date_3339($lasttime),
 436                 feedurl => $feedurl,
 437                 version => $IkiWiki::version,
 438         );
 439         run_hooks(pagetemplate => sub {
 440                 shift->(page => $page, destpage => $page,
 441                         template => $template);
 442         });
 443
 444         return $template->output;
 445 } #}}}
 446
 447 sub pingurl (@) { #{{{
 448         return unless @{$config{pingurl}} && %toping;
 449
 450         eval q{require RPC::XML::Client};
 451         if ($@) {
 452                 debug(gettext("RPC::XML::Client not found, not pinging"));
 453                 return;
 454         }
 455
 456         # daemonize here so slow pings don't slow down wiki updates
 457         defined(my $pid = fork) or error("Can't fork: $!");
 458         return if $pid;
 459         chdir '/';
 460         setsid() or error("Can't start a new session: $!");
 461         open STDIN, '/dev/null';
 462         open STDOUT, '>/dev/null';
 463         open STDERR, '>&STDOUT' or error("Can't dup stdout: $!");
 464
 465         # Don't need to keep a lock on the wiki as a daemon.
 466         IkiWiki::unlockwiki();
 467
 468         foreach my $page (keys %toping) {
 469                 my $title=pagetitle(basename($page), 0);
 470                 my $url="$config{url}/".urlto($page, "");
 471                 foreach my $pingurl (@{$config{pingurl}}) {
 472                         debug("Pinging $pingurl for $page");
 473                         eval {
 474                                 my $client = RPC::XML::Client->new($pingurl);
 475                                 my $req = RPC::XML::request->new('weblogUpdates.ping',
 476                                         $title, $url);
 477                                 my $res = $client->send_request($req);
 478                                 if (! ref $res) {
 479                                         debug("Did not receive response to ping");
 480                                 }
 481                                 my $r=$res->value;
 482                                 if (! exists $r->{flerror} || $r->{flerror}) {
 483                                         debug("Ping rejected: ".(exists $r->{message} ? $r->{message} : "[unknown reason]"));
 484                                 }
 485                         };
 486                         if ($@) {
 487                                 debug "Ping failed: $@";
 488                         }
 489                 }
 490         }
 491
 492         exit 0; # daemon done
 493 } #}}}
 494
 495 1