1 # Copyright (C) 2014-2020 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # Used throughout the project for reading configuration
6 # Note: I hate camelCase; but git-config(1) uses it, but it's better
7 # than alllowercasewithoutunderscores, so use lc('configKey') where
8 # applicable for readability
10 package PublicInbox::Config;
13 use PublicInbox::Inbox;
14 use PublicInbox::Spawn qw(popen_rd);
16 sub _array ($) { ref($_[0]) eq 'ARRAY' ? $_[0] : [ $_[0] ] }
18 # returns key-value pairs of config directives in a hash
19 # if keys may be multi-value, the value is an array ref containing all values
21 my ($class, $file) = @_;
22 $file = default_file() unless defined($file);
24 if (ref($file) eq 'SCALAR') { # used by some tests
25 open my $fh, '<', $file or die; # PerlIO::scalar
26 $self = config_fh_parse($fh, "\n", '=');
28 $self = git_config_dump($file);
32 $self->{-by_addr} = {};
33 $self->{-by_list_id} = {};
34 $self->{-by_name} = {};
35 $self->{-by_newsgroup} = {};
36 $self->{-no_obfuscate} = {};
37 $self->{-limiters} = {};
38 $self->{-code_repos} = {}; # nick => PublicInbox::Git object
39 $self->{-cgitrc_unparsed} = $self->{'publicinbox.cgitrc'};
41 if (my $no = delete $self->{'publicinbox.noobfuscate'}) {
44 foreach my $n (@$no) {
45 my @n = split(/\s+/, $n);
47 if (/\S+@\S+/) { # full address
48 $self->{-no_obfuscate}->{lc $_} = 1;
50 # allow "example.com" or "@example.com"
52 push @domains, quotemeta($_);
56 my $nod = join('|', @domains);
57 $self->{-no_obfuscate_re} = qr/(?:$nod)\z/i;
59 if (my $css = delete $self->{'publicinbox.css'}) {
60 $self->{css} = _array($css);
67 sub fill_all ($) { each_inbox($_[0], \&noop) }
69 sub _lookup_fill ($$$) {
70 my ($self, $cache, $key) = @_;
71 $self->{$cache}->{$key} // do {
73 $self->{$cache}->{$key};
78 my ($self, $recipient) = @_;
79 _lookup_fill($self, '-by_addr', lc($recipient));
83 my ($self, $list_id) = @_;
84 _lookup_fill($self, '-by_list_id', lc($list_id));
87 sub lookup_name ($$) {
88 my ($self, $name) = @_;
89 $self->{-by_name}->{$name} // _fill($self, "publicinbox.$name");
93 my ($self, $cb, $arg) = @_;
94 # may auto-vivify if config file is non-existent:
95 foreach my $section (@{$self->{-section_order}}) {
96 next if $section !~ m!\Apublicinbox\.([^/]+)\z!;
97 my $ibx = lookup_name($self, $1) or next;
103 my ($self, $cb, $arg) = @_;
105 $self->{-iter} = [ \$i, $cb, $arg ];
108 # for PublicInbox::DS::next_tick, we only call this is if
109 # PublicInbox::DS is already loaded
112 my ($i, $cb, $arg) = @{$self->{-iter}};
113 my $section = $self->{-section_order}->[$$i++];
114 delete($self->{-iter}) unless defined($section);
115 eval { $cb->($self, $section, $arg) };
116 warn "E: $@ in ${self}::event_step" if $@;
117 PublicInbox::DS::requeue($self) if defined($section);
120 sub lookup_newsgroup {
121 my ($self, $ng) = @_;
122 _lookup_fill($self, '-by_newsgroup', lc($ng));
126 my ($self, $name) = @_;
127 $self->{-limiters}->{$name} //= do {
128 require PublicInbox::Qspawn;
129 my $max = $self->{"publicinboxlimiter.$name.max"} || 1;
130 my $limiter = PublicInbox::Qspawn::Limiter->new($max);
131 $limiter->setup_rlimit($name, $self);
136 sub config_dir { $ENV{PI_DIR} // "$ENV{HOME}/.public-inbox" }
139 my $f = $ENV{PI_CONFIG};
140 return $f if defined $f;
141 config_dir() . '/config';
144 sub config_fh_parse ($$$) {
145 my ($fh, $rs, $fs) = @_;
147 my (%section_seen, @section_order);
149 while (defined(my $line = <$fh>)) {
151 my ($k, $v) = split($fs, $line, 2);
152 my ($section) = ($k =~ /\A(\S+)\.[^\.]+\z/);
153 unless (defined $section_seen{$section}) {
154 $section_seen{$section} = 1;
155 push @section_order, $section;
160 if (ref($cur) eq "ARRAY") {
163 $rv{$k} = [ $cur, $v ];
169 $rv{-section_order} = \@section_order;
174 sub git_config_dump {
176 return {} unless -e $file;
177 my @cmd = (qw/git config -z -l --includes/, "--file=$file");
178 my $cmd = join(' ', @cmd);
179 my $fh = popen_rd(\@cmd);
180 my $rv = config_fh_parse($fh, "\0", "\n");
181 close $fh or die "failed to close ($cmd) pipe: $?";
185 sub valid_inbox_name ($) {
188 # Similar rules found in git.git/remote.c::valid_remote_nick
189 # and git.git/refs.c::check_refname_component
190 # We don't reject /\.lock\z/, however, since we don't lock refs
191 if ($name eq '' || $name =~ /\@\{/ ||
192 $name =~ /\.\./ || $name =~ m![/:\?\[\]\^~\s\f[:cntrl:]\*]! ||
193 $name =~ /\A\./ || $name =~ /\.\z/) {
197 # Note: we allow URL-unfriendly characters; users may configure
198 # non-HTTP-accessible inboxes
202 # XXX needs testing for cgit compatibility
203 # cf. cgit/scan-tree.c::add_repo
204 sub cgit_repo_merge ($$$) {
205 my ($self, $base, $repo) = @_;
206 my $path = $repo->{dir};
207 if (defined(my $se = $self->{-cgit_strict_export})) {
208 return unless -e "$path/$se";
210 return if -e "$path/noweb";
211 # this comes from the cgit config, and AFAIK cgit only allows
212 # repos to have one URL, but that's just the PATH_INFO component,
213 # not the Host: portion
214 # $repo = { url => 'foo.git', dir => '/path/to/foo.git' }
215 my $rel = $repo->{url};
216 unless (defined $rel) {
217 my $off = index($path, $base, 0);
221 $rel = substr($path, length($base) + 1);
224 $rel =~ s!/\.git\z!! or
227 $self->{-cgit_remove_suffix} and
228 $rel =~ s!/?\.git\z!!;
230 $self->{"coderepo.$rel.dir"} //= $path;
231 $self->{"coderepo.$rel.cgiturl"} //= _array($rel);
236 -d "$git_dir/objects" && -f "$git_dir/HEAD";
239 # XXX needs testing for cgit compatibility
240 sub scan_path_coderepo {
241 my ($self, $base, $path) = @_;
242 opendir(my $dh, $path) or do {
243 warn "error opening directory: $path\n";
247 if (is_git_dir($git_dir) || is_git_dir($git_dir .= '/.git')) {
248 my $repo = { dir => $git_dir };
249 cgit_repo_merge($self, $base, $repo);
252 while (defined(my $dn = readdir $dh)) {
253 next if $dn eq '.' || $dn eq '..';
254 if (index($dn, '.') == 0 && !$self->{-cgit_scan_hidden_path}) {
257 my $dir = "$path/$dn";
258 scan_path_coderepo($self, $base, $dir) if -d $dir;
262 sub scan_tree_coderepo ($$) {
263 my ($self, $path) = @_;
264 scan_path_coderepo($self, $path, $path);
267 sub scan_projects_coderepo ($$$) {
268 my ($self, $list, $path) = @_;
269 open my $fh, '<', $list or do {
270 warn "failed to open cgit projectlist=$list: $!\n";
275 scan_path_coderepo($self, $path, "$path/$_");
280 my ($self, $cgitrc, $nesting) = @_;
283 my %s = map { $_ => 1 } qw(/cgit.css /cgit.png
284 /favicon.ico /robots.txt);
285 $self->{-cgit_static} = \%s;
288 # same limit as cgit/configfile.c::parse_configfile
289 return if $nesting > 8;
291 open my $fh, '<', $cgitrc or do {
292 warn "failed to open cgitrc=$cgitrc: $!\n";
296 # FIXME: this doesn't support macro expansion via $VARS, yet
300 if (m!\Arepo\.url=(.+?)/*\z!) {
302 cgit_repo_merge($self, $repo->{dir}, $repo) if $repo;
303 $repo = { url => $nick };
304 } elsif (m!\Arepo\.path=(.+)\z!) {
308 warn "$_ without repo.url\n";
310 } elsif (m!\Ainclude=(.+)\z!) {
311 parse_cgitrc($self, $1, $nesting + 1);
312 } elsif (m!\A(scan-hidden-path|remove-suffix)=([0-9]+)\z!) {
313 my ($k, $v) = ($1, $2);
315 $self->{"-cgit_$k"} = $v;
316 } elsif (m!\A(project-list|strict-export)=(.+)\z!) {
317 my ($k, $v) = ($1, $2);
319 $self->{"-cgit_$k"} = $v;
320 } elsif (m!\Ascan-path=(.+)\z!) {
321 if (defined(my $list = $self->{-cgit_project_list})) {
322 scan_projects_coderepo($self, $list, $1);
324 scan_tree_coderepo($self, $1);
326 } elsif (m!\A(?:css|favicon|logo|repo\.logo)=(/.+)\z!) {
327 # absolute paths for static files via PublicInbox::Cgit
328 $self->{-cgit_static}->{$1} = 1;
331 cgit_repo_merge($self, $repo->{dir}, $repo) if $repo;
335 # Only git is supported at the moment, but SVN and Hg are possibilities
336 sub _fill_code_repo {
337 my ($self, $nick) = @_;
338 my $pfx = "coderepo.$nick";
340 # TODO: support gitweb and other repository viewers?
341 if (defined(my $cgitrc = delete $self->{-cgitrc_unparsed})) {
342 parse_cgitrc($self, $cgitrc, 0);
344 my $dir = $self->{"$pfx.dir"}; # aka "GIT_DIR"
345 unless (defined $dir) {
346 warn "$pfx.dir unset\n";
350 my $git = PublicInbox::Git->new($dir);
351 foreach my $t (qw(blob commit tree tag)) {
352 $git->{$t.'_url_format'} =
353 _array($self->{lc("$pfx.${t}UrlFormat")});
356 if (defined(my $cgits = $self->{"$pfx.cgiturl"})) {
357 $git->{cgit_url} = $cgits = _array($cgits);
358 $self->{"$pfx.cgiturl"} = $cgits;
360 # cgit supports "/blob/?id=%s", but it's only a plain-text
361 # display and requires an unabbreviated id=
362 foreach my $t (qw(blob commit tag)) {
363 $git->{$t.'_url_format'} //= map {
372 sub _git_config_bool ($) {
374 if ($val =~ /\A(?:false|no|off|[\-\+]?(?:0x)?0+)\z/i) {
376 } elsif ($val =~ /\A(?:true|yes|on|[\-\+]?(?:0x)?[0-9]+)\z/i) {
384 my ($self, $pfx) = @_;
387 foreach my $k (qw(inboxdir filter newsgroup
389 replyto feedmax nntpserver indexlevel)) {
390 my $v = $self->{"$pfx.$k"};
391 $ibx->{$k} = $v if defined $v;
394 # backwards compatibility:
395 $ibx->{inboxdir} //= $self->{"$pfx.mainrepo"};
397 foreach my $k (qw(obfuscate)) {
398 my $v = $self->{"$pfx.$k"};
400 if (defined(my $bval = _git_config_bool($v))) {
403 warn "Ignoring $pfx.$k=$v in config, not boolean\n";
406 # TODO: more arrays, we should support multi-value for
407 # more things to encourage decentralization
408 foreach my $k (qw(address altid nntpmirror coderepo hide listid url
409 infourl watchheader)) {
410 if (defined(my $v = $self->{"$pfx.$k"})) {
411 $ibx->{$k} = _array($v);
415 return unless defined($ibx->{inboxdir});
417 $name =~ s/\Apublicinbox\.//;
419 if (!valid_inbox_name($name)) {
420 warn "invalid inbox name: '$name'\n";
424 $ibx->{name} = $name;
425 $ibx->{-pi_config} = $self;
426 $ibx = PublicInbox::Inbox->new($ibx);
427 foreach (@{$ibx->{address}}) {
428 my $lc_addr = lc($_);
429 $self->{-by_addr}->{$lc_addr} = $ibx;
430 $self->{-no_obfuscate}->{$lc_addr} = 1;
432 if (my $listids = $ibx->{listid}) {
433 foreach my $list_id (@$listids) {
434 $self->{-by_list_id}->{$list_id} = $ibx;
437 if (my $ng = $ibx->{newsgroup}) {
438 $self->{-by_newsgroup}->{$ng} = $ibx;
440 $self->{-by_name}->{$name} = $ibx;
441 if ($ibx->{obfuscate}) {
442 $ibx->{-no_obfuscate} = $self->{-no_obfuscate};
443 $ibx->{-no_obfuscate_re} = $self->{-no_obfuscate_re};
444 fill_all($self); # noop to populate -no_obfuscate
447 if (my $ibx_code_repos = $ibx->{coderepo}) {
448 my $code_repos = $self->{-code_repos};
449 my $repo_objs = $ibx->{-repo_objs} = [];
450 foreach my $nick (@$ibx_code_repos) {
451 my @parts = split(m!/!, $nick);
453 $valid += valid_inbox_name($_) foreach (@parts);
454 $valid == scalar(@parts) or next;
456 my $repo = $code_repos->{$nick} //=
457 _fill_code_repo($self, $nick);
458 push @$repo_objs, $repo if $repo;
466 my ($self, $key, $url) = @_;
467 state $urlmatch_broken; # requires git 1.8.5
468 return if $urlmatch_broken;
469 my $file = default_file();
470 my $cmd = [qw/git config -z --includes --get-urlmatch/,
471 "--file=$file", $key, $url ];
472 my $fh = popen_rd($cmd);
479 $urlmatch_broken = 1 if (($? >> 8) != 1);