X-Git-Url: http://git.shiar.nl/sheet.git/blobdiff_plain/3b395d58206174e283f62ac5ca3a382c9d375a02..20944668da222b8510754fb4819b2b21e768840c:/source.plp

diff --git a/source.plp b/source.plp
index 56193fb..f49c8ed 100644
--- a/source.plp
+++ b/source.plp
@@ -1,6 +1,7 @@
 <(common.inc.plp)><:
 
 my $source = $Request;
+my $incname = qr{ [a-z][/a-z0-9_.-]* \.(?:plp?|css|js|txt) }x;
 
 if ($source =~ s{(?<=\Q.inc.pl\E)/jsonp?$}{} and -r $source) {
 	# convert perl include to json construct
@@ -9,9 +10,10 @@ if ($source =~ s{(?<=\Q.inc.pl\E)/jsonp?$}{} and -r $source) {
 		my $data = do $source or die $@ || $! || 'read error';
 		require JSON;
 		my $converter = JSON->new;
-		$converter->utf8->indent->space_after->canonical;
+		$converter->indent->space_after->canonical;
 
 		$header{content_type} = 'application/json';
+		$header{'Access-Control-Allow-Origin'} = '*';
 		$header{content_type} = 'text/plain' if exists $get{debug};
 		print $_, '(' for $get{callback} // ();
 		print $converter->encode($data);
@@ -27,7 +29,7 @@ if ($source =~ s{(?<=\Q.inc.pl\E)/jsonp?$}{} and -r $source) {
 
 Html({
 	title => "$source source code",
-	version => '1.1',
+	version => '1.2',
 	description => !$source ? 'Index of source files for this site.' : [
 		"Source code of the $source file at this site,",
 		"with syntax highlighted and references linked."
@@ -36,6 +38,7 @@ Html({
 		sheet cheat source code perl plp html agpl
 	'],
 	stylesheet => [qw'light dark mono red'],
+	data => [$source =~ m{\A($incname)\z}],
 });
 
 say '';
@@ -47,15 +50,18 @@ if (not $source) {
 	say '<ul>';
 	for (glob '*.plp') {
 		chomp;
-		say sprintf '<li><a href="/source/%s">%1$s</a></li>', EscapeHTML($_);
+		say '<li>', showlink($_, "/source/$_");
 	}
 	say "</ul>\n";
 }
 else {
-	say "<h1>Source of $source</h1>";
+	my $href = showlink($source, $source =~ m{\A (\w+) \.plp \z}x && "/$1");
+	PLP_START {
+		say "<h1>Source of $href</h1>";
+	};
 
 	if ($source =~ m{(?:/|^)\.}) {
-		die "File request not permitted\n";
+		Abort("File request not permitted", '403 source not allowed');
 	}
 	elsif ($source =~ s{::}{/}g or !-e $source) {
 		$source .= '.pm';
@@ -65,41 +71,46 @@ else {
 			last;
 		}
 	}
-	-r $source or die "Requested file not found\n";
+	-r $source or Abort("Requested file not found", '404 source not found');
+	my $size = (stat $source)->[7];
 
-	if (eval { require Text::VimColor and Text::VimColor->VERSION(0.12) }) {
+	if (my $hl = eval {
+		$size < 32_768 or die 'large files take too long to parse';
+		require Text::VimColor;
+		Text::VimColor->VERSION(0.12)
+			or die 'early versions are buggy under FastCGI';
 		delete $Text::VimColor::SYNTAX_TYPE{Underlined};
+		return Text::VimColor->new(
+			file => $source,
+			vim_options => [@Text::VimColor::VIM_OPTIONS, '+:set enc=utf-8'],
+		)->marked;
+	}) {
 		my %TYPETAG = (
 			Statement => 'strong',
 			Error     => 'em',
 			Todo      => 'em',
 		);
 
-		my $hl = Text::VimColor->new(
-			file => $source,
-			vim_options => [@Text::VimColor::VIM_OPTIONS, '+:set enc=utf-8'],
-		);
-		my $parsed = $hl->marked;
 		say '<pre>';
-		foreach (@$parsed) {
+		foreach (@{$hl}) {
 			my ($type, $contents) = @{$_};
 			$contents = decode_utf8($contents);
 			my $tag = $type && ($TYPETAG{$type} || 'span');
 			my $arg = '';
 			print "<$tag$arg class=\"sy-\l$type\">" if $tag;
 			if (!$type || $type eq 'Constant'
-			and $contents =~ s{^(['"]?)(/?[a-z0-9_.]+\.(?:plp?|css|js))(?=\1$)}{}) {
+			and $contents =~ s{^(['"]?)($incname)(?=\1$)}{}) {
 				# link other page sources, stylesheets, and javascript
-				printf '%s<a href="%s">%s</a>', $1, "/source/$2", $2;
+				print $1 . showlink($2, "/source/$2");
 			}
 			if (!$type and $contents =~ s/^(\s*)([A-Z]\w+(?:::\w+)+)(?![^;\s])//) {
 				# link perl module names (Xx::Xx...)
-				printf '%s<a href="%s">%s</a>', $1, "/source/$2", $2;
+				print $1 . showlink($2, "/source/$2");
 			}
 			if ($type && $type eq 'Comment'
 			and $contents =~ s{^(.*? by )(tools/\S+)}{}) {
 				# link generator scripts (by tools/...)
-				printf '%s<a href="%s">%s</a>', $1, "/source/$2", $2;
+				print $1 . showlink($2, "/source/$2");
 			}
 			print Text::VimColor::_xml_escape($contents);
 			print "</$tag>" if $tag;