X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/4f93b8e2b44a3d9e5455d3f369f6cad929faf899..bcc6cd8f73f27d8327b6646ff0e03b674b66e7a6:/IkiWiki/Render.pm

diff --git a/IkiWiki/Render.pm b/IkiWiki/Render.pm
index f397ff320..a4efa0b74 100644
--- a/IkiWiki/Render.pm
+++ b/IkiWiki/Render.pm
@@ -1,20 +1,58 @@
+#!/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}}{
-		$1 ? "[[$2]]" : htmllink($page, $2)
+		$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 ($$) { #{{{
 	my $type=shift;
 	my $content=shift;
@@ -27,11 +65,17 @@ sub htmlize ($$) { #{{{
 	}
 	
 	if ($type eq '.mdwn') {
-		return Markdown::Markdown($content);
+		$content=Markdown::Markdown($content);
 	}
 	else {
 		error("htmlization of $type not supported");
 	}
+
+	if ($config{sanitize}) {
+		$content=scrubber()->scrub($content);
+	}
+	
+	return $content;
 } #}}}
 
 sub backlinks ($) { #{{{
@@ -79,10 +123,64 @@ sub parentlinks ($) { #{{{
 	return @ret;
 } #}}}
 
-sub rsspage ($) { #{{{
+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;
+} #}}}
 
-	return $page.".rss";
+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 ($$$) { #{{{
@@ -96,10 +194,10 @@ sub genpage ($$$) { #{{{
 		filename => "$config{templatedir}/page.tmpl");
 	
 	if (length $config{cgiurl}) {
-		$template->param(editurl => "$config{cgiurl}?do=edit&page=$page");
-		$template->param(prefsurl => "$config{cgiurl}?do=prefs");
+		$template->param(editurl => cgiurl(do => "edit", page => $page));
+		$template->param(prefsurl => cgiurl(do => "prefs"));
 		if ($config{rcs}) {
-			$template->param(recentchangesurl => "$config{cgiurl}?do=recentchanges");
+			$template->param(recentchangesurl => cgiurl(do => "recentchanges"));
 		}
 	}
 
@@ -108,11 +206,8 @@ sub genpage ($$$) { #{{{
 		$u=~s/\[\[file\]\]/$pagesources{$page}/g;
 		$template->param(historyurl => $u);
 	}
+	$template->param(headercontent => $config{headercontent});
 
-	if ($config{rss}) {
-		$template->param(rssurl => rsspage($page));
-	}
-	
 	$template->param(
 		title => $title,
 		wikiname => $config{wikiname},
@@ -121,55 +216,7 @@ sub genpage ($$$) { #{{{
 		backlinks => [backlinks($page)],
 		discussionlink => htmllink($page, "Discussion", 1, 1),
 		mtime => scalar(gmtime($mtime)),
-	);
-	
-	return $template->output;
-} #}}}
-
-sub date_822 ($) { #{{{
-	my $time=shift;
-
-	eval q{use POSIX};
-	return POSIX::strftime("%a, %d %b %Y %H:%M:%S %z", localtime($time));
-} #}}}
-
-sub absolute_urls ($$) { #{{{
-	my $content=shift;
-	my $url=shift;
-
-	$url=~s/[^\/]+$//;
-	
-	$content=~s/<a\s+href="(?!http:\/\/)([^"]+)"/<a href="$url$1"/ig;
-	$content=~s/<img\s+src="(?!http:\/\/)([^"]+)"/<img src="$url$1"/ig;
-	return $content;
-} #}}}
-
-sub genrss ($$$) { #{{{
-	my $content=shift;
-	my $page=shift;
-	my $mtime=shift;
-
-	my $url="$config{url}/".htmlpage($page);
-	
-	my $template=HTML::Template->new(blind_cache => 1,
-		filename => "$config{templatedir}/rsspage.tmpl");
-	
-	# Regular page gets a feed that is updated every time the
-	# page is changed, so the mtime is encoded in the guid.
-	my @items=(
-		{
-			itemtitle => pagetitle(basename($page)),
-			itemguid => "$url?mtime=$mtime",
-			itemurl => $url,
-			itempubdate => date_822($mtime),
-			itemcontent => absolute_urls($content, $url), # rss sucks
-		},
-	);
-	
-	$template->param(
-		title => $config{wikiname},
-		pageurl => $url,
-		items => \@items,
+		styleurl => styleurl($page),
 	);
 	
 	return $template->output;
@@ -190,9 +237,9 @@ sub check_overwrite ($$) { #{{{
 } #}}}
 
 sub mtime ($) { #{{{
-	my $page=shift;
+	my $file=shift;
 	
-	return (stat($page))[9];
+	return (stat($file))[9];
 } #}}}
 
 sub findlinks ($$) { #{{{
@@ -201,7 +248,7 @@ sub findlinks ($$) { #{{{
 
 	my @links;
 	while ($content =~ /(?<!\\)$config{wiki_link_regexp}/g) {
-		push @links, lc($1);
+		push @links, titlepage($2);
 	}
 	# Discussion links are a special case since they're not in the text
 	# of the page, but on its template.
@@ -212,33 +259,30 @@ sub render ($) { #{{{
 	my $file=shift;
 	
 	my $type=pagetype($file);
-	my $content=readfile("$config{srcdir}/$file");
+	my $srcfile=srcfile($file);
 	if ($type ne 'unknown') {
+		my $content=readfile($srcfile);
 		my $page=pagename($file);
 		
 		$links{$page}=[findlinks($content, $page)];
+		delete $depends{$page};
 		
 		$content=linkify($content, $page);
+		$content=preprocess($page, $content);
 		$content=htmlize($type, $content);
 		
 		check_overwrite("$config{destdir}/".htmlpage($page), $page);
-		writefile("$config{destdir}/".htmlpage($page),
-			genpage($content, $page, mtime("$config{srcdir}/$file")));		
+		writefile(htmlpage($page), $config{destdir},
+			genpage($content, $page, mtime($srcfile)));
 		$oldpagemtime{$page}=time;
 		$renderedfiles{$page}=htmlpage($page);
-
-		# TODO: should really add this to renderedfiles and call
-		# check_overwrite, as above, but currently renderedfiles
-		# only supports listing one file per page.
-		if ($config{rss}) {
-			writefile("$config{destdir}/".rsspage($page),
-				genrss($content, $page, mtime("$config{srcdir}/$file")));
-		}
 	}
 	else {
+		my $content=readfile($srcfile, 1);
 		$links{$file}=[];
+		delete $depends{$file};
 		check_overwrite("$config{destdir}/$file", $file);
-		writefile("$config{destdir}/$file", $content);
+		writefile($file, $config{destdir}, $content, 1);
 		$oldpagemtime{$file}=time;
 		$renderedfiles{$file}=$file;
 	}
@@ -263,9 +307,7 @@ sub refresh () { #{{{
 		no_chdir => 1,
 		wanted => sub {
 			if (/$config{wiki_file_prune_regexp}/) {
-				no warnings 'once';
 				$File::Find::prune=1;
-				use warnings "all";
 			}
 			elsif (! -d $_ && ! -l $_) {
 				my ($f)=/$config{wiki_file_regexp}/; # untaint
@@ -280,6 +322,30 @@ sub refresh () { #{{{
 			}
 		},
 	}, $config{srcdir});
+	find({
+		no_chdir => 1,
+		wanted => sub {
+			if (/$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;
 
@@ -292,7 +358,8 @@ sub refresh () { #{{{
 			push @add, $file;
 			$links{$page}=[];
 			$pagesources{$page}=$file;
-			$pagectime{$page}=time unless exists $pagectime{$page};
+			$pagectime{$page}=mtime(srcfile($file))
+				unless exists $pagectime{$page};
 		}
 	}
 	my @del;
@@ -312,7 +379,7 @@ sub refresh () { #{{{
 		my $page=pagename($file);
 		
 		if (! exists $oldpagemtime{$page} ||
-		    mtime("$config{srcdir}/$file") > $oldpagemtime{$page}) {
+		    mtime(srcfile($file)) > $oldpagemtime{$page}) {
 		    	debug("rendering changed file $file");
 			render($file);
 			$rendered{$file}=1;
@@ -320,7 +387,7 @@ sub refresh () { #{{{
 	}
 	
 	# if any files were added or removed, check to see if each page
-	# needs an update due to linking to them
+	# 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
@@ -341,20 +408,37 @@ FILE:		foreach my $file (@files) {
 		}
 	}
 
-	# handle backlinks; if a page has added/removed links, update the
-	# pages it links to
+	# 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) {
+	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 { $_ eq $link } @{$oldlinks{$page}}) {
+					    (! exists $oldlinks{$page} ||
+					     ! grep { bestlink($page, $_) eq $link } @{$oldlinks{$page}})) {
 						$linkchanged{$link}=1;
 					}
 				}
@@ -362,8 +446,8 @@ FILE:		foreach my $file (@files) {
 			if (exists $oldlinks{$page}) {
 				foreach my $link (map { bestlink($page, $_) } @{$oldlinks{$page}}) {
 					if (length $link &&
-					    ! exists $links{$page} ||
-					    ! grep { $_ eq $link } @{$links{$page}}) {
+					    (! exists $links{$page} || 
+					     ! grep { bestlink($page, $_) eq $link } @{$links{$page}})) {
 						$linkchanged{$link}=1;
 					}
 				}
@@ -374,9 +458,21 @@ FILE:		foreach my $file (@files) {
 			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