1 # Copyright (C) all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # wrapper for cgit(1) and git-http-backend(1) for browsing and
5 # serving git code repositories. Requires 'publicinbox.cgitrc'
6 # directive to be set in the public-inbox config file.
8 package PublicInbox::Cgit;
10 use PublicInbox::GitHTTPBackend;
12 # not bothering with Exporter for a one-off
13 *input_prepare = \&PublicInbox::GitHTTPBackend::input_prepare;
14 *serve = \&PublicInbox::GitHTTPBackend::serve;
15 use PublicInbox::Qspawn;
16 use PublicInbox::WwwStatic qw(r);
20 my $cgit_bin = $pi_cfg->{'publicinbox.cgitbin'};
21 my $cgit_data = $pi_cfg->{'publicinbox.cgitdata'};
23 # /var/www/htdocs/cgit is the default install path from cgit.git
24 # /usr/{lib,share}/cgit is where Debian puts cgit
25 # TODO: check other distros for common paths
26 unless (defined $cgit_bin) {
27 foreach (qw(/var/www/htdocs/cgit /usr/lib/cgit)) {
28 my $x = "$_/cgit.cgi";
34 unless (defined $cgit_data) {
35 my @dirs = qw(/var/www/htdocs/cgit /usr/share/cgit);
37 # local installs of cgit from source have
38 # CGIT_SCRIPT_PATH==CGIT_DATA_PATH by default,
39 # so we can usually infer the cgit_data path from cgit_bin
40 if (defined($cgit_bin) && $cgit_bin =~ m!\A(.+?)/[^/]+\z!) {
41 unshift @dirs, $1 if -d $1;
44 next unless -f "$_/cgit.css";
49 ($cgit_bin, $cgit_data);
53 my ($class, $pi_cfg) = @_;
54 my ($cgit_bin, $cgit_data) = locate_cgit($pi_cfg);
55 # TODO: support gitweb and other repository viewers?
56 if (defined(my $cgitrc = $pi_cfg->{-cgitrc_unparsed})) {
57 $pi_cfg->parse_cgitrc($cgitrc, 0);
61 cgit_data => $cgit_data,
65 # some cgit repos may not be mapped to inboxes, so ensure those exist:
66 my $code_repos = $pi_cfg->{-code_repos};
67 for my $k (grep(/\Acoderepo\.(?:.+)\.dir\z/, keys %$pi_cfg)) {
68 $k = substr($k, length('coderepo.'), -length('.dir'));
69 $code_repos->{$k} //= $pi_cfg->fill_code_repo($k);
71 while (my ($nick, $repo) = each %$code_repos) {
72 $self->{"\0$nick"} = $repo;
74 my $s = join('|', map { quotemeta } keys %{$pi_cfg->{-cgit_static}});
75 $self->{static} = qr/\A($s)\z/;
79 # only what cgit cares about:
91 # XXX: cgit filters may care about more variables...
93 my $parse_cgi_headers = \&PublicInbox::GitHTTPBackend::parse_cgi_headers;
96 my ($self, $env) = @_;
97 my $path_info = $env->{PATH_INFO};
100 # handle requests without spawning cgit iff possible:
101 if ($path_info =~ m!\A/(.+?)/($PublicInbox::GitHTTPBackend::ANY)\z!ox) {
102 my ($nick, $path) = ($1, $2);
103 if (my PublicInbox::Git $git = $self->{"\0$nick"}) {
104 return serve($env, $git, $path);
106 } elsif ($path_info =~ m!$self->{static}! &&
107 defined($cgit_data = $self->{cgit_data})) {
108 my $f = $cgit_data.$1; # {static} only matches leading slash
109 return PublicInbox::WwwStatic::response($env, [], $f);
112 my $cgi_env = { PATH_INFO => $path_info };
113 foreach (@PASS_ENV) {
114 my $v = $env->{$_} // next;
117 $cgi_env->{'HTTPS'} = 'on' if $env->{'psgi.url_scheme'} eq 'https';
119 my $rdr = input_prepare($env) or return r(500);
120 my $qsp = PublicInbox::Qspawn->new($self->{cmd}, $cgi_env, $rdr);
121 my $limiter = $self->{pi_cfg}->limiter('-cgit');
122 $qsp->psgi_return($env, $limiter, $parse_cgi_headers);