# Copyright (C) 2014-2015 all contributors # License: AGPLv3 or later (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->{-limiters} ||= {}; $self; } sub lookup { my ($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; # XXX "limiter..max" was a historical mistake foreach my $pfx (qw(publicinboxlimiter limiter)) { $max ||= $self->{"$pfx.$name.max"}; } PublicInbox::Qspawn::Limiter->new($max); }; } sub get { my ($self, $inbox, $key) = @_; $self->{"publicinbox.$inbox.$key"}; } 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"; foreach 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 address filter url newsgroup infourl watch watchheader httpbackendmax feedmax)) { my $v = $self->{"$pfx.$k"}; $rv->{$k} = $v if defined $v; } # TODO: more arrays, we should support multi-value for # more things to encourage decentralization foreach my $k (qw(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); my $v = $rv->{address}; if (ref($v) eq 'ARRAY') { $self->{-by_addr}->{lc($_)} = $rv foreach @$v; } else { $self->{-by_addr}->{lc($v)} = $rv; } if (my $ng = $rv->{newsgroup}) { $self->{-by_newsgroup}->{$ng} = $rv; } $self->{-by_name}->{$name} = $rv; } 1;