# Copyright (C) 2014-2017 all contributors
# License: AGPL-3.0+
package PublicInbox::Reply;
use strict;
use warnings;
use URI::Escape qw/uri_escape_utf8/;
use PublicInbox::Hval qw/ascii_html/;
use PublicInbox::Address;
use PublicInbox::MID qw/mid_clean mid_escape/;
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 default
foreach my $rt (split(/\s*,\s*/, $ibx->{replyto} || ':all')) {
if ($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') {
add_addrs(\$to, $cc, $ibx->{-primary_address});
} elsif ($rt =~ /\A(?:$reply_headers)\z/io) {
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 $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 $irt = mid_escape($mid);
delete $cc->{$to};
push @arg, "--to=$to";
$to = uri_escape_utf8($to);
$subj = uri_escape_utf8($subj);
my @cc = sort values %$cc;
$cc = '';
if (@cc) {
push(@arg, map { "--cc=$_" } @cc);
$cc = '&Cc=' . uri_escape_utf8(join(',', @cc));
}
# 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));
}
1;