- #!/usr/bin/perl
- package IkiWiki;
- use warnings;
- use strict;
- use IkiWiki;
- use Encode;
- my (%backlinks, %rendered);
- our %brokenlinks;
- my $links_calculated=0;
- sub calculate_links () {
- return if $links_calculated;
- %backlinks=%brokenlinks=();
- foreach my $page (keys %links) {
- foreach my $link (@{$links{$page}}) {
- my $bestlink=bestlink($page, $link);
- if (length $bestlink) {
- $backlinks{$bestlink}{$page}=1
- if $bestlink ne $page;
- }
- else {
- push @{$brokenlinks{$link}}, $page;
- }
- }
- }
- $links_calculated=1;
- }
- sub backlink_pages ($) {
- my $page=shift;
- calculate_links();
- return keys %{$backlinks{$page}};
- }
- sub backlinks ($) {
- my $page=shift;
- my @links;
- foreach my $p (backlink_pages($page)) {
- my $href=urlto($p, $page);
- # Trim common dir prefixes from both pages.
- my $p_trimmed=$p;
- my $page_trimmed=$page;
- my $dir;
- 1 while (($dir)=$page_trimmed=~m!^([^/]+/)!) &&
- defined $dir &&
- $p_trimmed=~s/^\Q$dir\E// &&
- $page_trimmed=~s/^\Q$dir\E//;
-
- push @links, { url => $href, page => pagetitle($p_trimmed) };
- }
- return @links;
- }
- sub genpage ($$) {
- my $page=shift;
- my $content=shift;
-
- run_hooks(indexhtml => sub {
- shift->(page => $page, destpage => $page, content => $content);
- });
- my $templatefile;
- run_hooks(templatefile => sub {
- return if defined $templatefile;
- my $file=shift->(page => $page);
- if (defined $file && defined template_file($file)) {
- $templatefile=$file;
- }
- });
- my $template;
- if (defined $templatefile) {
- $template=template_depends($templatefile, $page,
- blind_cache => 1);
- }
- else {
- # no explicit depends as special case
- $template=template('page.tmpl',
- blind_cache => 1);
- }
- my $actions=0;
- if (length $config{cgiurl}) {
- if (IkiWiki->can("cgi_editpage")) {
- $template->param(editurl => cgiurl(do => "edit", page => $page));
- $actions++;
- }
- }
- if (defined $config{historyurl} && length $config{historyurl}) {
- my $u=$config{historyurl};
- $u=~s/\[\[file\]\]/$pagesources{$page}/g;
- $template->param(historyurl => $u);
- $actions++;
- }
- if ($config{discussion}) {
- if ($page !~ /.*\/\Q$config{discussionpage}\E$/i &&
- (length $config{cgiurl} ||
- exists $links{$page."/".$config{discussionpage}})) {
- $template->param(discussionlink => htmllink($page, $page, $config{discussionpage}, noimageinline => 1, forcesubpage => 1));
- $actions++;
- }
- }
- if ($actions) {
- $template->param(have_actions => 1);
- }
- templateactions($template, $page);
- my @backlinks=sort { $a->{page} cmp $b->{page} } backlinks($page);
- my ($backlinks, $more_backlinks);
- if (@backlinks <= $config{numbacklinks} || ! $config{numbacklinks}) {
- $backlinks=\@backlinks;
- $more_backlinks=[];
- }
- else {
- $backlinks=[@backlinks[0..$config{numbacklinks}-1]];
- $more_backlinks=[@backlinks[$config{numbacklinks}..$#backlinks]];
- }
- $template->param(
- title => $page eq 'index'
- ? $config{wikiname}
- : pagetitle(basename($page)),
- wikiname => $config{wikiname},
- content => $content,
- backlinks => $backlinks,
- more_backlinks => $more_backlinks,
- mtime => displaytime($pagemtime{$page}),
- ctime => displaytime($pagectime{$page}, undef, 1),
- baseurl => baseurl($page),
- html5 => $config{html5},
- );
- run_hooks(pagetemplate => sub {
- shift->(page => $page, destpage => $page, template => $template);
- });
-
- $content=$template->output;
-
- run_hooks(format => sub {
- $content=shift->(
- page => $page,
- content => $content,
- );
- });
- return $content;
- }
- sub scan ($) {
- my $file=shift;
- debug(sprintf(gettext("scanning %s"), $file));
- my $type=pagetype($file);
- if (defined $type) {
- my $srcfile=srcfile($file);
- my $content=readfile($srcfile);
- my $page=pagename($file);
- will_render($page, htmlpage($page), 1);
- if ($config{discussion}) {
- # Discussion links are a special case since they're
- # not in the text of the page, but on its template.
- $links{$page}=[ $page."/".lc($config{discussionpage}) ];
- }
- else {
- $links{$page}=[];
- }
- delete $typedlinks{$page};
- run_hooks(scan => sub {
- shift->(
- page => $page,
- content => $content,
- );
- });
- # Preprocess in scan-only mode.
- preprocess($page, $page, $content, 1);
- }
- else {
- will_render($file, $file, 1);
- }
- }
- sub fast_file_copy (@) {
- my $srcfile=shift;
- my $destfile=shift;
- my $srcfd=shift;
- my $destfd=shift;
- my $cleanup=shift;
- my $blksize = 16384;
- my ($len, $buf, $written);
- while ($len = sysread $srcfd, $buf, $blksize) {
- if (! defined $len) {
- next if $! =~ /^Interrupted/;
- error("failed to read $srcfile: $!", $cleanup);
- }
- my $offset = 0;
- while ($len) {
- defined($written = syswrite $destfd, $buf, $len, $offset)
- or error("failed to write $destfile: $!", $cleanup);
- $len -= $written;
- $offset += $written;
- }
- }
- }
- sub render ($$) {
- my $file=shift;
- return if $rendered{$file};
- debug(shift);
- $rendered{$file}=1;
-
- my $type=pagetype($file);
- my $srcfile=srcfile($file);
- if (defined $type) {
- my $page=pagename($file);
- delete $depends{$page};
- delete $depends_simple{$page};
- will_render($page, htmlpage($page), 1);
- return if $type=~/^_/;
-
- my $content=htmlize($page, $page, $type,
- linkify($page, $page,
- preprocess($page, $page,
- filter($page, $page,
- readfile($srcfile)))));
-
- my $output=htmlpage($page);
- writefile($output, $config{destdir}, genpage($page, $content));
- }
- else {
- delete $depends{$file};
- delete $depends_simple{$file};
- will_render($file, $file, 1);
-
- if ($config{hardlink}) {
- # only hardlink if owned by same user
- my @stat=stat($srcfile);
- if ($stat[4] == $>) {
- prep_writefile($file, $config{destdir});
- unlink($config{destdir}."/".$file);
- if (link($srcfile, $config{destdir}."/".$file)) {
- return;
- }
- }
- # if hardlink fails, fall back to copying
- }
-
- my $srcfd=readfile($srcfile, 1, 1);
- writefile($file, $config{destdir}, undef, 1, sub {
- fast_file_copy($srcfile, $file, $srcfd, @_);
- });
- }
- }
- sub prune ($) {
- my $file=shift;
- unlink($file);
- my $dir=dirname($file);
- while (rmdir($dir)) {
- $dir=dirname($dir);
- }
- }
- sub srcdir_check () {
- # security check, avoid following symlinks in the srcdir path by default
- my $test=$config{srcdir};
- while (length $test) {
- if (-l $test && ! $config{allow_symlinks_before_srcdir}) {
- error(sprintf(gettext("symlink found in srcdir path (%s) -- set allow_symlinks_before_srcdir to allow this"), $test));
- }
- unless ($test=~s/\/+$//) {
- $test=dirname($test);
- }
- }
-
- }
- sub find_src_files () {
- my @files;
- my %pages;
- eval q{use File::Find};
- error($@) if $@;
- eval q{use Cwd};
- die $@ if $@;
- my $origdir=getcwd();
- my $abssrcdir=Cwd::abs_path($config{srcdir});
- my ($page, $underlay);
- my $helper=sub {
- my $file=decode_utf8($_);
- return if -l $file || -d _;
- $file=~s/^\.\///;
- return if ! length $file;
- $page = pagename($file);
- if (! exists $pagesources{$page} &&
- file_pruned($file)) {
- $File::Find::prune=1;
- return;
- }
- my ($f) = $file =~ /$config{wiki_file_regexp}/; # untaint
- if (! defined $f) {
- warn(sprintf(gettext("skipping bad filename %s"), $file)."\n");
- return;
- }
-
- if ($underlay) {
- # avoid underlaydir override attacks; see security.mdwn
- if (! -l "$abssrcdir/$f" && ! -e _) {
- if (! $pages{$page}) {
- push @files, $f;
- $pages{$page}=1;
- }
- }
- }
- else {
- push @files, $f;
- if ($pages{$page}) {
- debug(sprintf(gettext("%s has multiple possible source pages"), $page));
- }
- $pages{$page}=1;
- }
- };
- chdir($config{srcdir}) || die "chdir: $!";
- find({
- no_chdir => 1,
- wanted => $helper,
- }, '.');
- chdir($origdir) || die "chdir: $!";
- $underlay=1;
- foreach (@{$config{underlaydirs}}, $config{underlaydir}) {
- chdir($_) || die "chdir: $!";
- find({
- no_chdir => 1,
- wanted => $helper,
- }, '.');
- chdir($origdir) || die "chdir: $!";
- };
- return \@files, \%pages;
- }
- sub find_new_files ($) {
- my $files=shift;
- my @new;
- my @internal_new;
- my $times_noted;
- foreach my $file (@$files) {
- my $page=pagename($file);
- if ($config{rcs} && $config{gettime} &&
- -e "$config{srcdir}/$file") {
- if (! $times_noted) {
- debug(sprintf(gettext("querying %s for file creation and modification times.."), $config{rcs}));
- $times_noted=1;
- }
- eval {
- my $ctime=rcs_getctime("$config{srcdir}/$file");
- if ($ctime > 0) {
- $pagectime{$page}=$ctime;
- }
- };
- if ($@) {
- print STDERR $@;
- }
- my $mtime;
- eval {
- $mtime=rcs_getmtime("$config{srcdir}/$file");
- };
- if ($@) {
- print STDERR $@;
- }
- elsif ($mtime > 0) {
- utime($mtime, $mtime, "$config{srcdir}/$file");
- }
- }
- if (exists $pagesources{$page} && $pagesources{$page} ne $file) {
- # the page has changed its type
- $forcerebuild{$page}=1;
- }
- $pagesources{$page}=$file;
- if (! $pagemtime{$page}) {
- if (isinternal($page)) {
- push @internal_new, $file;
- }
- else {
- push @new, $file;
- }
- $pagecase{lc $page}=$page;
- if (! exists $pagectime{$page}) {
- $pagectime{$page}=(srcfile_stat($file))[10];
- }
- }
- }
- return \@new, \@internal_new;
- }
- sub find_del_files ($) {
- my $pages=shift;
- my @del;
- my @internal_del;
- foreach my $page (keys %pagesources) {
- if (! $pages->{$page}) {
- if (isinternal($page)) {
- push @internal_del, $pagesources{$page};
- }
- else {
- push @del, $pagesources{$page};
- }
- $links{$page}=[];
- delete $typedlinks{$page};
- $renderedfiles{$page}=[];
- $pagemtime{$page}=0;
- }
- }
- return \@del, \@internal_del;
- }
- sub remove_del (@) {
- foreach my $file (@_) {
- my $page=pagename($file);
- if (! isinternal($page)) {
- debug(sprintf(gettext("removing obsolete %s"), $page));
- }
-
- foreach my $old (@{$oldrenderedfiles{$page}}) {
- prune($config{destdir}."/".$old);
- }
- foreach my $source (keys %destsources) {
- if ($destsources{$source} eq $page) {
- delete $destsources{$source};
- }
- }
-
- delete $pagecase{lc $page};
- $delpagesources{$page}=$pagesources{$page};
- delete $pagesources{$page};
- }
- }
- sub find_changed ($) {
- my $files=shift;
- my @changed;
- my @internal_changed;
- foreach my $file (@$files) {
- my $page=pagename($file);
- my ($srcfile, @stat)=srcfile_stat($file);
- if (! exists $pagemtime{$page} ||
- $stat[9] > $pagemtime{$page} ||
- $forcerebuild{$page}) {
- $pagemtime{$page}=$stat[9];
- if (isinternal($page)) {
- # Preprocess internal page in scan-only mode.
- preprocess($page, $page, readfile($srcfile), 1);
- push @internal_changed, $file;
- }
- else {
- push @changed, $file;
- }
- }
- }
- return \@changed, \@internal_changed;
- }
- sub calculate_old_links ($$) {
- my ($changed, $del)=@_;
- my %oldlink_targets;
- foreach my $file (@$changed, @$del) {
- my $page=pagename($file);
- if (exists $oldlinks{$page}) {
- foreach my $l (@{$oldlinks{$page}}) {
- $oldlink_targets{$page}{$l}=bestlink($page, $l);
- }
- }
- }
- return \%oldlink_targets;
- }
- sub derender_internal ($) {
- my $file=shift;
- my $page=pagename($file);
- delete $depends{$page};
- delete $depends_simple{$page};
- foreach my $old (@{$renderedfiles{$page}}) {
- delete $destsources{$old};
- }
- $renderedfiles{$page}=[];
- }
- sub render_linkers ($) {
- my $f=shift;
- my $p=pagename($f);
- foreach my $page (keys %{$backlinks{$p}}) {
- my $file=$pagesources{$page};
- render($file, sprintf(gettext("building %s, which links to %s"), $file, $p));
- }
- }
- sub remove_unrendered () {
- foreach my $src (keys %rendered) {
- my $page=pagename($src);
- foreach my $file (@{$oldrenderedfiles{$page}}) {
- if (! grep { $_ eq $file } @{$renderedfiles{$page}}) {
- debug(sprintf(gettext("removing %s, no longer built by %s"), $file, $page));
- prune($config{destdir}."/".$file);
- }
- }
- }
- }
- sub link_types_changed ($$) {
- # each is of the form { type => { link => 1 } }
- my $new = shift;
- my $old = shift;
- return 0 if !defined $new && !defined $old;
- return 1 if (!defined $new && %$old) || (!defined $old && %$new);
- while (my ($type, $links) = each %$new) {
- foreach my $link (keys %$links) {
- return 1 unless exists $old->{$type}{$link};
- }
- }
- while (my ($type, $links) = each %$old) {
- foreach my $link (keys %$links) {
- return 1 unless exists $new->{$type}{$link};
- }
- }
- return 0;
- }
- sub calculate_changed_links ($$$) {
- my ($changed, $del, $oldlink_targets)=@_;
- my (%backlinkchanged, %linkchangers);
- foreach my $file (@$changed, @$del) {
- my $page=pagename($file);
- if (exists $links{$page}) {
- foreach my $l (@{$links{$page}}) {
- my $target=bestlink($page, $l);
- if (! exists $oldlink_targets->{$page}{$l} ||
- $target ne $oldlink_targets->{$page}{$l}) {
- $backlinkchanged{$target}=1;
- $linkchangers{lc($page)}=1;
- }
- delete $oldlink_targets->{$page}{$l};
- }
- }
- if (exists $oldlink_targets->{$page} &&
- %{$oldlink_targets->{$page}}) {
- foreach my $target (values %{$oldlink_targets->{$page}}) {
- $backlinkchanged{$target}=1;
- }
- $linkchangers{lc($page)}=1;
- }
- # we currently assume that changing the type of a link doesn't
- # change backlinks
- if (!exists $linkchangers{lc($page)}) {
- if (link_types_changed($typedlinks{$page}, $oldtypedlinks{$page})) {
- $linkchangers{lc($page)}=1;
- }
- }
- }
- return \%backlinkchanged, \%linkchangers;
- }
- sub render_dependent ($$$$$$$) {
- my ($files, $new, $internal_new, $del, $internal_del,
- $internal_changed, $linkchangers)=@_;
- my @changed=(keys %rendered, @$del);
- my @exists_changed=(@$new, @$del);
-
- my %lc_changed = map { lc(pagename($_)) => 1 } @changed;
- my %lc_exists_changed = map { lc(pagename($_)) => 1 } @exists_changed;
- foreach my $p ("templates/page.tmpl", keys %{$depends_simple{""}}) {
- if ($rendered{$p} || grep { $_ eq $p } @$del) {
- foreach my $f (@$files) {
- next if $rendered{$f};
- render($f, sprintf(gettext("building %s, which depends on %s"), $f, $p));
- }
- return 0;
- }
- }
-
- foreach my $f (@$files) {
- next if $rendered{$f};
- my $p=pagename($f);
- my $reason = undef;
- if (exists $depends_simple{$p} && ! defined $reason) {
- foreach my $d (keys %{$depends_simple{$p}}) {
- if (($depends_simple{$p}{$d} & $IkiWiki::DEPEND_CONTENT &&
- $lc_changed{$d})
- ||
- ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_PRESENCE &&
- $lc_exists_changed{$d})
- ||
- ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_LINKS &&
- $linkchangers->{$d})
- ) {
- $reason = $d;
- last;
- }
- }
- }
-
- if (exists $depends{$p} && ! defined $reason) {
- foreach my $dep (keys %{$depends{$p}}) {
- my $sub=pagespec_translate($dep);
- next unless defined $sub;
- # only consider internal files
- # if the page explicitly depends
- # on such files
- my $internal_dep=$dep =~ /(?:internal|comment|comment_pending)\(/;
- my $in=sub {
- my $list=shift;
- my $type=shift;
- foreach my $file (@$list) {
- next if $file eq $f;
- my $page=pagename($file);
- if ($sub->($page, location => $p)) {
- if ($type == $IkiWiki::DEPEND_LINKS) {
- next unless $linkchangers->{lc($page)};
- }
- $reason=$page;
- return 1;
- }
- }
- return undef;
- };
- if ($depends{$p}{$dep} & $IkiWiki::DEPEND_CONTENT) {
- last if $in->(\@changed, $IkiWiki::DEPEND_CONTENT);
- last if $internal_dep && (
- $in->($internal_new, $IkiWiki::DEPEND_CONTENT) ||
- $in->($internal_del, $IkiWiki::DEPEND_CONTENT) ||
- $in->($internal_changed, $IkiWiki::DEPEND_CONTENT)
- );
- }
- if ($depends{$p}{$dep} & $IkiWiki::DEPEND_PRESENCE) {
- last if $in->(\@exists_changed, $IkiWiki::DEPEND_PRESENCE);
- last if $internal_dep && (
- $in->($internal_new, $IkiWiki::DEPEND_PRESENCE) ||
- $in->($internal_del, $IkiWiki::DEPEND_PRESENCE)
- );
- }
- if ($depends{$p}{$dep} & $IkiWiki::DEPEND_LINKS) {
- last if $in->(\@changed, $IkiWiki::DEPEND_LINKS);
- last if $internal_dep && (
- $in->($internal_new, $IkiWiki::DEPEND_LINKS) ||
- $in->($internal_del, $IkiWiki::DEPEND_LINKS) ||
- $in->($internal_changed, $IkiWiki::DEPEND_LINKS)
- );
- }
- }
- }
-
- if (defined $reason) {
- render($f, sprintf(gettext("building %s, which depends on %s"), $f, $reason));
- return 1;
- }
- }
- return 0;
- }
- sub render_backlinks ($) {
- my $backlinkchanged=shift;
- foreach my $link (keys %$backlinkchanged) {
- my $linkfile=$pagesources{$link};
- if (defined $linkfile) {
- render($linkfile, sprintf(gettext("building %s, to update its backlinks"), $linkfile));
- }
- }
- }
- sub gen_autofile ($$$) {
- my $autofile=shift;
- my $pages=shift;
- my $del=shift;
- if (file_pruned($autofile)) {
- return;
- }
- my ($file)="$config{srcdir}/$autofile" =~ /$config{wiki_file_regexp}/; # untaint
- if (! defined $file) {
- return;
- }
- # Remember autofiles that were tried, and never try them again later.
- if (exists $wikistate{$autofiles{$autofile}{plugin}}{autofile}{$autofile}) {
- return;
- }
- $wikistate{$autofiles{$autofile}{plugin}}{autofile}{$autofile}=1;
- if (srcfile($autofile, 1) || file_pruned($autofile)) {
- return;
- }
-
- if (-l $file || -d _ || -e _) {
- return;
- }
- my $page = pagename($file);
- if ($pages->{$page}) {
- return;
- }
- if (grep { $_ eq $autofile } @$del) {
- return;
- }
- $autofiles{$autofile}{generator}->();
- $pages->{$page}=1;
- return 1;
- }
- sub refresh () {
- srcdir_check();
- run_hooks(refresh => sub { shift->() });
- my ($files, $pages)=find_src_files();
- my ($new, $internal_new)=find_new_files($files);
- my ($del, $internal_del)=find_del_files($pages);
- my ($changed, $internal_changed)=find_changed($files);
- run_hooks(needsbuild => sub { shift->($changed) });
- my $oldlink_targets=calculate_old_links($changed, $del);
- foreach my $file (@$changed) {
- scan($file);
- }
- foreach my $autofile (keys %autofiles) {
- if (gen_autofile($autofile, $pages, $del)) {
- push @{$files}, $autofile;
- push @{$new}, $autofile if find_new_files([$autofile]);
- push @{$changed}, $autofile if find_changed([$autofile]);
-
- scan($autofile);
- }
- }
- calculate_links();
-
- remove_del(@$del, @$internal_del);
- foreach my $file (@$changed) {
- render($file, sprintf(gettext("building %s"), $file));
- }
- foreach my $file (@$internal_new, @$internal_del, @$internal_changed) {
- derender_internal($file);
- }
- my ($backlinkchanged, $linkchangers)=calculate_changed_links($changed,
- $del, $oldlink_targets);
- foreach my $file (@$new, @$del) {
- render_linkers($file);
- }
- if (@$changed || @$internal_changed ||
- @$del || @$internal_del || @$internal_new) {
- 1 while render_dependent($files, $new, $internal_new,
- $del, $internal_del, $internal_changed,
- $linkchangers);
- }
- render_backlinks($backlinkchanged);
- remove_unrendered();
- if (@$del || @$internal_del) {
- run_hooks(delete => sub { shift->(@$del, @$internal_del) });
- }
- if (%rendered) {
- run_hooks(change => sub { shift->(keys %rendered) });
- }
- }
- sub clean_rendered {
- lockwiki();
- loadindex();
- remove_unrendered();
- foreach my $page (keys %oldrenderedfiles) {
- foreach my $file (@{$oldrenderedfiles{$page}}) {
- prune($config{destdir}."/".$file);
- }
- }
- }
- sub commandline_render () {
- lockwiki();
- loadindex();
- unlockwiki();
- my $srcfile=possibly_foolish_untaint($config{render});
- my $file=$srcfile;
- $file=~s/\Q$config{srcdir}\E\/?//;
- my $type=pagetype($file);
- die sprintf(gettext("ikiwiki: cannot build %s"), $srcfile)."\n" unless defined $type;
- my $content=readfile($srcfile);
- my $page=pagename($file);
- $pagesources{$page}=$file;
- $content=filter($page, $page, $content);
- $content=preprocess($page, $page, $content);
- $content=linkify($page, $page, $content);
- $content=htmlize($page, $page, $type, $content);
- $pagemtime{$page}=(stat($srcfile))[9];
- $pagectime{$page}=$pagemtime{$page} if ! exists $pagectime{$page};
- print genpage($page, $content);
- exit 0;
- }
- 1
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