- #!/usr/bin/perl
- package IkiWiki;
- use warnings;
- use strict;
- use File::Spec;
- use IkiWiki;
- sub linkify ($$) { #{{{
- my $content=shift;
- my $page=shift;
- $content =~ s{(\\?)$config{wiki_link_regexp}}{
- $2 ? ( $1 ? "[[$2|$3]]" : htmllink($page, titlepage($3), 0, 0, pagetitle($2)))
- : ( $1 ? "[[$3]]" : htmllink($page, titlepage($3)))
- }eg;
-
- return $content;
- } #}}}
- my $_scrubber;
- sub scrubber { #{{{
- return $_scrubber if defined $_scrubber;
-
- eval q{use HTML::Scrubber};
- # Lists based on http://feedparser.org/docs/html-sanitization.html
- $_scrubber = HTML::Scrubber->new(
- allow => [qw{
- a abbr acronym address area b big blockquote br
- button caption center cite code col colgroup dd del
- dfn dir div dl dt em fieldset font form h1 h2 h3 h4
- h5 h6 hr i img input ins kbd label legend li map
- menu ol optgroup option p pre q s samp select small
- span strike strong sub sup table tbody td textarea
- tfoot th thead tr tt u ul var
- }],
- default => [undef, { map { $_ => 1 } qw{
- abbr accept accept-charset accesskey action
- align alt axis border cellpadding cellspacing
- char charoff charset checked cite class
- clear cols colspan color compact coords
- datetime dir disabled enctype for frame
- headers height href hreflang hspace id ismap
- label lang longdesc maxlength media method
- multiple name nohref noshade nowrap prompt
- readonly rel rev rows rowspan rules scope
- selected shape size span src start summary
- tabindex target title type usemap valign
- value vspace width
- }}],
- );
- return $_scrubber;
- } # }}}
- sub htmlize ($$) { #{{{
- my $type=shift;
- my $content=shift;
-
- if (! $INC{"/usr/bin/markdown"}) {
- no warnings 'once';
- $blosxom::version="is a proper perl module too much to ask?";
- use warnings 'all';
- do "/usr/bin/markdown";
- }
-
- if ($type eq '.mdwn') {
- $content=Markdown::Markdown($content);
- }
- else {
- error("htmlization of $type not supported");
- }
- if ($config{sanitize}) {
- $content=scrubber()->scrub($content);
- }
-
- return $content;
- } #}}}
- sub backlinks ($) { #{{{
- my $page=shift;
- my @links;
- foreach my $p (keys %links) {
- next if bestlink($page, $p) eq $page;
- if (grep { length $_ && bestlink($p, $_) eq $page } @{$links{$p}}) {
- my $href=File::Spec->abs2rel(htmlpage($p), dirname($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 => $p_trimmed };
- }
- }
- return sort { $a->{page} cmp $b->{page} } @links;
- } #}}}
- sub parentlinks ($) { #{{{
- my $page=shift;
-
- my @ret;
- my $pagelink="";
- my $path="";
- my $skip=1;
- foreach my $dir (reverse split("/", $page)) {
- if (! $skip) {
- $path.="../";
- unshift @ret, { url => "$path$dir.html", page => $dir };
- }
- else {
- $skip=0;
- }
- }
- unshift @ret, { url => length $path ? $path : ".", page => $config{wikiname} };
- return @ret;
- } #}}}
- sub preprocess ($$) { #{{{
- my $page=shift;
- my $content=shift;
- my $handle=sub {
- my $escape=shift;
- my $command=shift;
- my $params=shift;
- if (length $escape) {
- return "[[$command $params]]";
- }
- elsif (exists $hooks{preprocess}{$command}) {
- my %params;
- while ($params =~ /(\w+)=\"([^"]+)"(\s+|$)/g) {
- $params{$1}=$2;
- }
- return $hooks{preprocess}{$command}{call}->(page => $page, %params);
- }
- else {
- return "[[$command not processed]]";
- }
- };
-
- $content =~ s{(\\?)$config{wiki_processor_regexp}}{$handle->($1, $2, $3)}eg;
- return $content;
- } #}}}
- sub add_depends ($$) { #{{{
- my $page=shift;
- my $globlist=shift;
-
- if (! exists $depends{$page}) {
- $depends{$page}=$globlist;
- }
- else {
- $depends{$page}=globlist_merge($depends{$page}, $globlist);
- }
- } # }}}
- sub globlist_merge ($$) { #{{{
- my $a=shift;
- my $b=shift;
- my $ret="";
- # Only add negated globs if they are not matched by the other globlist.
- foreach my $i ((map { [ $a, $_ ] } split(" ", $b)),
- (map { [ $b, $_ ] } split(" ", $a))) {
- if ($i->[1]=~/^!(.*)/) {
- if (! globlist_match($1, $i->[0])) {
- $ret.=" ".$i->[1];
- }
- }
- else {
- $ret.=" ".$i->[1];
- }
- }
-
- return $ret;
- } #}}}
- sub genpage ($$$) { #{{{
- my $content=shift;
- my $page=shift;
- my $mtime=shift;
- my $title=pagetitle(basename($page));
-
- my $template=HTML::Template->new(blind_cache => 1,
- filename => "$config{templatedir}/page.tmpl");
-
- if (length $config{cgiurl}) {
- $template->param(editurl => cgiurl(do => "edit", page => $page));
- $template->param(prefsurl => cgiurl(do => "prefs"));
- if ($config{rcs}) {
- $template->param(recentchangesurl => cgiurl(do => "recentchanges"));
- }
- }
- if (length $config{historyurl}) {
- my $u=$config{historyurl};
- $u=~s/\[\[file\]\]/$pagesources{$page}/g;
- $template->param(historyurl => $u);
- }
- $template->param(headercontent => $config{headercontent});
- $template->param(
- title => $title,
- wikiname => $config{wikiname},
- parentlinks => [parentlinks($page)],
- content => $content,
- backlinks => [backlinks($page)],
- discussionlink => htmllink($page, "Discussion", 1, 1),
- mtime => scalar(gmtime($mtime)),
- styleurl => styleurl($page),
- );
-
- return $template->output;
- } #}}}
- sub check_overwrite ($$) { #{{{
- # Important security check. Make sure to call this before saving
- # any files to the source directory.
- my $dest=shift;
- my $src=shift;
-
- if (! exists $renderedfiles{$src} && -e $dest && ! $config{rebuild}) {
- error("$dest already exists and was rendered from ".
- join(" ",(grep { $renderedfiles{$_} eq $dest } keys
- %renderedfiles)).
- ", before, so not rendering from $src");
- }
- } #}}}
- sub mtime ($) { #{{{
- my $file=shift;
-
- return (stat($file))[9];
- } #}}}
- sub findlinks ($$) { #{{{
- my $content=shift;
- my $page=shift;
- my @links;
- while ($content =~ /(?<!\\)$config{wiki_link_regexp}/g) {
- push @links, titlepage($2);
- }
- # Discussion links are a special case since they're not in the text
- # of the page, but on its template.
- return @links, "$page/discussion";
- } #}}}
- sub render ($) { #{{{
- my $file=shift;
-
- my $type=pagetype($file);
- my $srcfile=srcfile($file);
- if ($type ne 'unknown') {
- my $content=readfile($srcfile);
- my $page=pagename($file);
- delete $depends{$page};
-
- if (exists $hooks{filter}) {
- foreach my $id (keys %{$hooks{filter}}) {
- $content=$hooks{filter}{$id}{call}->(
- page => $page,
- content => $content
- );
- }
- }
-
- $links{$page}=[findlinks($content, $page)];
-
- $content=linkify($content, $page);
- $content=preprocess($page, $content);
- $content=htmlize($type, $content);
-
- check_overwrite("$config{destdir}/".htmlpage($page), $page);
- writefile(htmlpage($page), $config{destdir},
- genpage($content, $page, mtime($srcfile)));
- $oldpagemtime{$page}=time;
- $renderedfiles{$page}=htmlpage($page);
- }
- else {
- my $content=readfile($srcfile, 1);
- $links{$file}=[];
- delete $depends{$file};
- check_overwrite("$config{destdir}/$file", $file);
- writefile($file, $config{destdir}, $content, 1);
- $oldpagemtime{$file}=time;
- $renderedfiles{$file}=$file;
- }
- } #}}}
- sub prune ($) { #{{{
- my $file=shift;
- unlink($file);
- my $dir=dirname($file);
- while (rmdir($dir)) {
- $dir=dirname($dir);
- }
- } #}}}
- sub refresh () { #{{{
- # find existing pages
- my %exists;
- my @files;
- eval q{use File::Find};
- find({
- no_chdir => 1,
- wanted => sub {
- if (/$config{wiki_file_prune_regexp}/) {
- $File::Find::prune=1;
- }
- elsif (! -d $_ && ! -l $_) {
- my ($f)=/$config{wiki_file_regexp}/; # untaint
- if (! defined $f) {
- warn("skipping bad filename $_\n");
- }
- else {
- $f=~s/^\Q$config{srcdir}\E\/?//;
- push @files, $f;
- $exists{pagename($f)}=1;
- }
- }
- },
- }, $config{srcdir});
- find({
- no_chdir => 1,
- wanted => sub {
- if (/$config{wiki_file_prune_regexp}/) {
- $File::Find::prune=1;
- }
- elsif (! -d $_ && ! -l $_) {
- my ($f)=/$config{wiki_file_regexp}/; # untaint
- if (! defined $f) {
- warn("skipping bad filename $_\n");
- }
- else {
- # Don't add files that are in the
- # srcdir.
- $f=~s/^\Q$config{underlaydir}\E\/?//;
- if (! -e "$config{srcdir}/$f" &&
- ! -l "$config{srcdir}/$f") {
- push @files, $f;
- $exists{pagename($f)}=1;
- }
- }
- }
- },
- }, $config{underlaydir});
- my %rendered;
- # check for added or removed pages
- my @add;
- foreach my $file (@files) {
- my $page=pagename($file);
- if (! $oldpagemtime{$page}) {
- debug("new page $page") unless exists $pagectime{$page};
- push @add, $file;
- $links{$page}=[];
- $pagesources{$page}=$file;
- $pagectime{$page}=mtime(srcfile($file))
- unless exists $pagectime{$page};
- }
- }
- my @del;
- foreach my $page (keys %oldpagemtime) {
- if (! $exists{$page}) {
- debug("removing old page $page");
- push @del, $pagesources{$page};
- prune($config{destdir}."/".$renderedfiles{$page});
- delete $renderedfiles{$page};
- $oldpagemtime{$page}=0;
- delete $pagesources{$page};
- }
- }
-
- # render any updated files
- foreach my $file (@files) {
- my $page=pagename($file);
-
- if (! exists $oldpagemtime{$page} ||
- mtime(srcfile($file)) > $oldpagemtime{$page}) {
- debug("rendering changed file $file");
- render($file);
- $rendered{$file}=1;
- }
- }
-
- # if any files were added or removed, check to see if each page
- # needs an update due to linking to them or inlining them.
- # TODO: inefficient; pages may get rendered above and again here;
- # problem is the bestlink may have changed and we won't know until
- # now
- if (@add || @del) {
- FILE: foreach my $file (@files) {
- my $page=pagename($file);
- foreach my $f (@add, @del) {
- my $p=pagename($f);
- foreach my $link (@{$links{$page}}) {
- if (bestlink($page, $link) eq $p) {
- debug("rendering $file, which links to $p");
- render($file);
- $rendered{$file}=1;
- next FILE;
- }
- }
- }
- }
- }
- # Handle backlinks; if a page has added/removed links, update the
- # pages it links to. Also handles rebuilding dependat pages.
- # TODO: inefficient; pages may get rendered above and again here;
- # problem is the backlinks could be wrong in the first pass render
- # above
- if (%rendered || @del) {
- foreach my $f (@files) {
- my $p=pagename($f);
- if (exists $depends{$p}) {
- foreach my $file (keys %rendered, @del) {
- next if $f eq $file;
- my $page=pagename($file);
- if (globlist_match($page, $depends{$p})) {
- debug("rendering $f, which depends on $page");
- render($f);
- $rendered{$f}=1;
- last;
- }
- }
- }
- }
-
- my %linkchanged;
- foreach my $file (keys %rendered, @del) {
- my $page=pagename($file);
-
- if (exists $links{$page}) {
- foreach my $link (map { bestlink($page, $_) } @{$links{$page}}) {
- if (length $link &&
- (! exists $oldlinks{$page} ||
- ! grep { bestlink($page, $_) eq $link } @{$oldlinks{$page}})) {
- $linkchanged{$link}=1;
- }
- }
- }
- if (exists $oldlinks{$page}) {
- foreach my $link (map { bestlink($page, $_) } @{$oldlinks{$page}}) {
- if (length $link &&
- (! exists $links{$page} ||
- ! grep { bestlink($page, $_) eq $link } @{$links{$page}})) {
- $linkchanged{$link}=1;
- }
- }
- }
- }
- foreach my $link (keys %linkchanged) {
- my $linkfile=$pagesources{$link};
- if (defined $linkfile) {
- debug("rendering $linkfile, to update its backlinks");
- render($linkfile);
- $rendered{$linkfile}=1;
- }
- }
- }
- if (@del && exists $hooks{delete}) {
- foreach my $id (keys %{$hooks{delete}}) {
- $hooks{delete}{$id}{call}->(@del);
- }
- }
- if (%rendered && exists $hooks{render}) {
- foreach my $id (keys %{$hooks{render}}) {
- $hooks{render}{$id}{call}->(keys %rendered);
- }
- }
- } #}}}
- 1
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