source: link back to resulting page

[sheet.git] / source.plp

diff --git a/source.plp b/source.plp
index 097f0ac3f310b103b97cdd68a00fd0dfa5cef2b2..ea856281b6fde8acfc871bf12228f52a18a85101 100644 (file)
--- a/source.plp
+++ b/source.plp
@@ -1,7 +1,7 @@
 <(common.inc.plp)><:
 
-my $source = $ENV{PATH_INFO};
-$source =~ s{^/}{};
+my $source = $Request;
+my $incname = qr{ [a-z][/a-z0-9_.-]* \.(?:plp?|css|js) }x;
 
 if ($source =~ s{(?<=\Q.inc.pl\E)/jsonp?$}{} and -r $source) {
        # convert perl include to json construct
@@ -37,6 +37,7 @@ Html({
                sheet cheat source code perl plp html agpl
        '],
        stylesheet => [qw'light dark mono red'],
+       data => [$source =~ m{\A($incname)\z}],
 });
 
 say '';
@@ -48,12 +49,13 @@ 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");
+       say "<h1>Source of $href</h1>";
 
        if ($source =~ m{(?:/|^)\.}) {
                die "File request not permitted\n";
@@ -67,41 +69,45 @@ else {
                }
        }
        -r $source or die "Requested file not found\n";
+       my $size = (stat $source)->[7];
 
-       require Encode;
-       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, $contents) = @{$_};
-                       $contents = Encode::decode_utf8($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 $tag;
@@ -110,7 +116,7 @@ else {
        }
        else {
                say '<pre>';
-               print EscapeHTML(Encode::decode_utf8(ReadFile($source)));
+               print EscapeHTML(decode_utf8(ReadFile($source)));
                say '</pre>';
        }