diff options
Diffstat (limited to 'gitweb/gitweb.perl')
| -rwxr-xr-x | gitweb/gitweb.perl | 145 |
1 files changed, 123 insertions, 22 deletions
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl index e39ef866f..9e5e0bf3e 100755 --- a/gitweb/gitweb.perl +++ b/gitweb/gitweb.perl @@ -11,7 +11,7 @@ use strict; use warnings; use CGI qw(:standard :escapeHTML -nosticky); use CGI::Util qw(unescape); -use CGI::Carp qw(fatalsToBrowser); +use CGI::Carp qw(fatalsToBrowser set_message); use Encode; use Fcntl ':mode'; use File::Find qw(); @@ -450,6 +450,19 @@ our %feature = ( 'javascript-actions' => { 'override' => 0, 'default' => [0]}, + + # Syntax highlighting support. This is based on Daniel Svensson's + # and Sham Chukoury's work in gitweb-xmms2.git. + # It requires the 'highlight' program present in $PATH, + # and therefore is disabled by default. + + # To enable system wide have in $GITWEB_CONFIG + # $feature{'highlight'}{'default'} = [1]; + + 'highlight' => { + 'sub' => sub { feature_bool('highlight', @_) }, + 'override' => 0, + 'default' => [0]}, ); sub gitweb_get_feature { @@ -976,6 +989,21 @@ sub configure_gitweb_features { } } +# custom error handler: 'die <message>' is Internal Server Error +sub handle_errors_html { + my $msg = shift; # it is already HTML escaped + + # to avoid infinite loop where error occurs in die_error, + # change handler to default handler, disabling handle_errors_html + set_message("Error occured when inside die_error:\n$msg"); + + # you cannot jump out of die_error when called as error handler; + # the subroutine set via CGI::Carp::set_message is called _after_ + # HTTP headers are already written, so it cannot write them itself + die_error(undef, undef, $msg, -error_handler => 1, -no_http_header => 1); +} +set_message(\&handle_errors_html); + # dispatch sub dispatch { if (!defined $action) { @@ -2532,6 +2560,9 @@ sub git_get_projects_list { follow_skip => 2, # ignore duplicates dangling_symlinks => 0, # ignore dangling symlinks, silently wanted => sub { + # global variables + our $project_maxdepth; + our $projectroot; # skip project-list toplevel, if we get it. return if (m!^[/.]$!); # only directories can be git repositories @@ -3267,26 +3298,88 @@ sub blob_contenttype { return $type; } +# guess file syntax for syntax highlighting; return undef if no highlighting +# the name of syntax can (in the future) depend on syntax highlighter used +sub guess_file_syntax { + my ($highlight, $mimetype, $file_name) = @_; + return undef unless ($highlight && defined $file_name); + + # configuration for 'highlight' (http://www.andre-simon.de/) + # match by basename + my %highlight_basename = ( + #'Program' => 'py', + #'Library' => 'py', + 'SConstruct' => 'py', # SCons equivalent of Makefile + 'Makefile' => 'make', + ); + # match by extension + my %highlight_ext = ( + # main extensions, defining name of syntax; + # see files in /usr/share/highlight/langDefs/ directory + map { $_ => $_ } + qw(py c cpp rb java css php sh pl js tex bib xml awk bat ini spec tcl), + # alternate extensions, see /etc/highlight/filetypes.conf + 'h' => 'c', + map { $_ => 'cpp' } qw(cxx c++ cc), + map { $_ => 'php' } qw(php3 php4), + map { $_ => 'pl' } qw(perl pm), # perhaps also 'cgi' + 'mak' => 'make', + map { $_ => 'xml' } qw(xhtml html htm), + ); + + my $basename = basename($file_name, '.in'); + return $highlight_basename{$basename} + if exists $highlight_basename{$basename}; + + $basename =~ /\.([^.]*)$/; + my $ext = $1 or return undef; + return $highlight_ext{$ext} + if exists $highlight_ext{$ext}; + + return undef; +} + +# run highlighter and return FD of its output, +# or return original FD if no highlighting +sub run_highlighter { + my ($fd, $highlight, $syntax) = @_; + return $fd unless ($highlight && defined $syntax); + + close $fd + or die_error(404, "Reading blob failed"); + open $fd, quote_command(git_cmd(), "cat-file", "blob", $hash)." | ". + "highlight --xhtml --fragment --syntax $syntax |" + or die_error(500, "Couldn't open file or run syntax highlighter"); + return $fd; +} + ## ====================================================================== ## functions printing HTML: header, footer, error page +sub get_page_title { + my $title = to_utf8($site_name); + + return $title unless (defined $project); + $title .= " - " . to_utf8($project); + + return $title unless (defined $action); + $title .= "/$action"; # $action is US-ASCII (7bit ASCII) + + return $title unless (defined $file_name); + $title .= " - " . esc_path($file_name); + if ($action eq "tree" && $file_name !~ m|/$|) { + $title .= "/"; + } + + return $title; +} + sub git_header_html { my $status = shift || "200 OK"; my $expires = shift; + my %opts = @_; - my $title = "$site_name"; - if (defined $project) { - $title .= " - " . to_utf8($project); - if (defined $action) { - $title .= "/$action"; - if (defined $file_name) { - $title .= " - " . esc_path($file_name); - if ($action eq "tree" && $file_name !~ m|/$|) { - $title .= "/"; - } - } - } - } + my $title = get_page_title(); my $content_type; # require explicit support from the UA if we are to send the page as # 'application/xhtml+xml', otherwise send it as plain old 'text/html'. @@ -3300,7 +3393,8 @@ sub git_header_html { $content_type = 'text/html'; } print $cgi->header(-type=>$content_type, -charset => 'utf-8', - -status=> $status, -expires => $expires); + -status=> $status, -expires => $expires) + unless ($opts{'-no_http_header'}); my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : ''; print <<EOF; <?xml version="1.0" encoding="utf-8"?> @@ -3517,6 +3611,7 @@ sub die_error { my $status = shift || 500; my $error = esc_html(shift) || "Internal Server Error"; my $extra = shift; + my %opts = @_; my %http_responses = ( 400 => '400 Bad Request', @@ -3525,7 +3620,7 @@ sub die_error { 500 => '500 Internal Server Error', 503 => '503 Service Unavailable', ); - git_header_html($http_responses{$status}); + git_header_html($http_responses{$status}, undef, %opts); print <<EOF; <div class="page_body"> <br /><br /> @@ -3539,7 +3634,8 @@ EOF print "</div>\n"; git_footer_html(); - goto DONE_GITWEB; + goto DONE_GITWEB + unless ($opts{'-error_handler'}); } ## ---------------------------------------------------------------------- @@ -5458,6 +5554,7 @@ sub git_blob { open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash or die_error(500, "Couldn't cat $file_name, $hash"); my $mimetype = blob_mimetype($fd, $file_name); + # use 'blob_plain' (aka 'raw') view for files that cannot be displayed if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)! && -B $fd) { close $fd; return git_blob_plain($mimetype); @@ -5465,6 +5562,11 @@ sub git_blob { # we can have blame only for text/* mimetype $have_blame &&= ($mimetype =~ m!^text/!); + my $highlight = gitweb_check_feature('highlight'); + my $syntax = guess_file_syntax($highlight, $mimetype, $file_name); + $fd = run_highlighter($fd, $highlight, $syntax) + if $syntax; + git_header_html(undef, $expires); my $formats_nav = ''; if (defined $hash_base && (my %co = parse_commit($hash_base))) { @@ -5514,9 +5616,8 @@ sub git_blob { chomp $line; $nr++; $line = untabify($line); - printf "<div class=\"pre\"><a id=\"l%i\" href=\"" . href(-replay => 1) - . "#l%i\" class=\"linenr\">%4i</a> %s</div>\n", - $nr, $nr, $nr, esc_html($line, -nbsp=>1); + printf qq!<div class="pre"><a id="l%i" href="%s#l%i" class="linenr">%4i</a> %s</div>\n!, + $nr, href(-replay => 1), $nr, $nr, $syntax ? $line : esc_html($line, -nbsp=>1); } } close $fd @@ -6229,8 +6330,8 @@ sub git_commitdiff { } push @commit_spec, '--root', $hash; } - open $fd, "-|", git_cmd(), "format-patch", '--encoding=utf8', - '--stdout', @commit_spec + open $fd, "-|", git_cmd(), "format-patch", @diff_opts, + '--encoding=utf8', '--stdout', @commit_spec or die_error(500, "Open git-format-patch failed"); } else { die_error(400, "Unknown commitdiff format"); |