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| | # Copyright (C) 2014-2018 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
#
# Used throughout the project for reading configuration
package PublicInbox::Config;
use strict;
use warnings;
require PublicInbox::Inbox;
use PublicInbox::Spawn qw(popen_rd);
# returns key-value pairs of config directives in a hash
# if keys may be multi-value, the value is an array ref containing all values
sub new {
my ($class, $file) = @_;
$file = default_file() unless defined($file);
$file = ref $file ? $file : git_config_dump($file);
my $self = bless $file, $class;
# caches
$self->{-by_addr} ||= {};
$self->{-by_name} ||= {};
$self->{-by_newsgroup} ||= {};
$self->{-no_obfuscate} ||= {};
$self->{-limiters} ||= {};
if (my $no = delete $self->{'publicinbox.noobfuscate'}) {
$no = [ $no ] if ref($no) ne 'ARRAY';
my @domains;
foreach my $n (@$no) {
my @n = split(/\s+/, $n);
foreach (@n) {
if (/\S+@\S+/) { # full address
$self->{-no_obfuscate}->{lc $_} = 1;
} else {
# allow "example.com" or "@example.com"
s/\A@//;
push @domains, quotemeta($_);
}
}
}
my $nod = join('|', @domains);
$self->{-no_obfuscate_re} = qr/(?:$nod)\z/i;
}
$self;
}
sub lookup {
my ($self, $recipient) = @_;
my $addr = lc($recipient);
my $inbox = $self->{-by_addr}->{$addr};
return $inbox if $inbox;
my $pfx;
foreach my $k (keys %$self) {
$k =~ /\A(publicinbox\.[\w-]+)\.address\z/ or next;
my $v = $self->{$k};
if (ref($v) eq "ARRAY") {
foreach my $alias (@$v) {
(lc($alias) eq $addr) or next;
$pfx = $1;
last;
}
} else {
(lc($v) eq $addr) or next;
$pfx = $1;
last;
}
}
defined $pfx or return;
_fill($self, $pfx);
}
sub lookup_name ($$) {
my ($self, $name) = @_;
$self->{-by_name}->{$name} || _fill($self, "publicinbox.$name");
}
sub each_inbox {
my ($self, $cb) = @_;
my %seen;
foreach my $k (keys %$self) {
$k =~ /\Apublicinbox\.([A-Z0-9a-z-]+)\.mainrepo\z/ or next;
next if $seen{$1};
$seen{$1} = 1;
my $ibx = lookup_name($self, $1) or next;
$cb->($ibx);
}
}
sub lookup_newsgroup {
my ($self, $ng) = @_;
$ng = lc($ng);
my $rv = $self->{-by_newsgroup}->{$ng};
return $rv if $rv;
foreach my $k (keys %$self) {
$k =~ /\A(publicinbox\.[\w-]+)\.newsgroup\z/ or next;
my $v = $self->{$k};
my $pfx = $1;
if ($v eq $ng) {
$rv = _fill($self, $pfx);
return $rv;
}
}
undef;
}
sub limiter {
my ($self, $name) = @_;
$self->{-limiters}->{$name} ||= do {
require PublicInbox::Qspawn;
my $max = $self->{"publicinboxlimiter.$name.max"};
PublicInbox::Qspawn::Limiter->new($max);
};
}
sub config_dir { $ENV{PI_DIR} || "$ENV{HOME}/.public-inbox" }
sub default_file {
my $f = $ENV{PI_CONFIG};
return $f if defined $f;
config_dir() . '/config';
}
sub git_config_dump {
my ($file) = @_;
my ($in, $out);
my @cmd = (qw/git config/, "--file=$file", '-l');
my $cmd = join(' ', @cmd);
my $fh = popen_rd(\@cmd) or die "popen_rd failed for $file: $!\n";
my %rv;
local $/ = "\n";
while (defined(my $line = <$fh>)) {
chomp $line;
my ($k, $v) = split(/=/, $line, 2);
my $cur = $rv{$k};
if (defined $cur) {
if (ref($cur) eq "ARRAY") {
push @$cur, $v;
} else {
$rv{$k} = [ $cur, $v ];
}
} else {
$rv{$k} = $v;
}
}
close $fh or die "failed to close ($cmd) pipe: $?";
\%rv;
}
sub _fill {
my ($self, $pfx) = @_;
my $rv = {};
foreach my $k (qw(mainrepo filter url newsgroup
infourl watch watchheader httpbackendmax
replyto feedmax nntpserver)) {
my $v = $self->{"$pfx.$k"};
$rv->{$k} = $v if defined $v;
}
foreach my $k (qw(obfuscate)) {
my $v = $self->{"$pfx.$k"};
defined $v or next;
if ($v =~ /\A(?:false|no|off|0)\z/) {
$rv->{$k} = 0;
} elsif ($v =~ /\A(?:true|yes|on|1)\z/) {
$rv->{$k} = 1;
} else {
warn "Ignoring $pfx.$k=$v in config, not boolean\n";
}
}
# TODO: more arrays, we should support multi-value for
# more things to encourage decentralization
foreach my $k (qw(address altid nntpmirror)) {
if (defined(my $v = $self->{"$pfx.$k"})) {
$rv->{$k} = ref($v) eq 'ARRAY' ? $v : [ $v ];
}
}
return unless $rv->{mainrepo};
my $name = $pfx;
$name =~ s/\Apublicinbox\.//;
$rv->{name} = $name;
$rv->{-pi_config} = $self;
$rv = PublicInbox::Inbox->new($rv);
foreach (@{$rv->{address}}) {
my $lc_addr = lc($_);
$self->{-by_addr}->{$lc_addr} = $rv;
$self->{-no_obfuscate}->{$lc_addr} = 1;
}
if (my $ng = $rv->{newsgroup}) {
$self->{-by_newsgroup}->{$ng} = $rv;
}
$self->{-by_name}->{$name} = $rv;
if ($rv->{obfuscate}) {
$rv->{-no_obfuscate} = $self->{-no_obfuscate};
$rv->{-no_obfuscate_re} = $self->{-no_obfuscate_re};
each_inbox($self, sub {}); # noop to populate -no_obfuscate
}
$rv
}
1;
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