# Copyright (C) 2014-2020 all contributors
# License: AGPL-3.0+
# For reply instructions and address generation in WWW UI
package PublicInbox::Reply;
use strict;
use warnings;
use URI::Escape qw/uri_escape_utf8/;
use PublicInbox::Hval qw(ascii_html obfuscate_addrs mid_href);
use PublicInbox::Address;
use PublicInbox::MID qw(mid_clean);
sub squote_maybe ($) {
my ($val) = @_;
if ($val =~ m{([^\w@\./,\%\+\-])}) {
$val =~ s/(['!])/'\\$1'/g; # '!' for csh
return "'$val'";
}
$val;
}
sub add_addrs {
my ($to, $cc, @addrs) = @_;
foreach my $address (@addrs) {
my $dst = lc($address);
$cc->{$dst} ||= $address;
$$to ||= $dst;
}
}
my @reply_headers = qw(From To Cc Reply-To);
my $reply_headers = join('|', @reply_headers);
sub mailto_arg_link {
my ($ibx, $hdr) = @_;
my $cc = {}; # everyone else
my $to; # this is the From address by defaultq
my $reply_to_all = 'reply-to-all'; # the only good default :P
my $reply_to_cfg = $ibx->{replyto};
$reply_to_cfg ||= ':all';
if ($reply_to_cfg =~ /\A:none=(.*)/) {
my $msg = $1;
$msg = 'replies disabled' if $msg eq '';
return \$msg;
}
foreach my $rt (split(/\s*,\s*/, $reply_to_cfg)) {
if ($rt eq ':all') {
foreach my $h (@reply_headers) {
my $v = $hdr->header($h);
defined($v) && ($v ne '') or next;
my @addrs = PublicInbox::Address::emails($v);
add_addrs(\$to, $cc, @addrs);
}
} elsif ($rt eq ':list') {
$reply_to_all = 'reply-to-list';
add_addrs(\$to, $cc, $ibx->{-primary_address});
} elsif ($rt =~ /\A(?:$reply_headers)\z/io) {
# ugh, this is weird...
my $v = $hdr->header($rt);
if (defined($v) && ($v ne '')) {
my @addrs = PublicInbox::Address::emails($v);
add_addrs(\$to, $cc, @addrs);
}
} elsif ($rt =~ /@/) {
add_addrs(\$to, $cc, $rt);
} else {
warn "Unrecognized replyto = '$rt' in config\n";
}
}
my @arg;
my $obfs = $ibx->{obfuscate};
my $subj = $hdr->header('Subject') || '';
$subj = "Re: $subj" unless $subj =~ /\bRe:/i;
my $mid = $hdr->header_raw('Message-ID');
push @arg, '--in-reply-to='.squote_maybe(mid_clean($mid));
my $irt = mid_href($mid);
delete $cc->{$to};
if ($obfs) {
my $arg_to = $to;
obfuscate_addrs($ibx, $arg_to, '$(echo .)');
push @arg, "--to=$arg_to";
# no $subj for $href below
} else {
push @arg, "--to=$to";
$to = uri_escape_utf8($to);
$subj = uri_escape_utf8($subj);
}
my @cc = sort values %$cc;
$cc = '';
if (@cc) {
if ($obfs) {
push(@arg, map {
my $addr = $_;
obfuscate_addrs($ibx, $addr, '$(echo .)');
"--cc=$addr";
} @cc);
} else {
$cc = '&Cc=' . uri_escape_utf8(join(',', @cc));
push(@arg, map { "--cc=$_" } @cc);
}
}
# I'm not sure if address obfuscation and mailto: links can
# be made compatible; and address obfuscation is misguided,
# anyways.
return (\@arg, '', $reply_to_all) if $obfs;
# order matters, Subject is the least important header,
# so it is last in case it's lost/truncated in a copy+paste
my $href = "mailto:$to?In-Reply-To=$irt${cc}&Subject=$subj";
(\@arg, ascii_html($href), $reply_to_all);
}
1;