#!/usr/bin/perl
#
# ColdSync Mail conduit
#
# $Id: send-mail,v 1.9 2001/11/13 13:51:00 arensb Exp $
#
use strict;
use Palm::Mail;
use ColdSync;
use Text::Wrap;

# Default values for headers
%HEADERS = (
	# XXX - This ought to be determined at configure-time
	"Sendmail"	=> "/usr/sbin/sendmail",
	"My-Address"	=> (getpwuid($>))[0],
	"Wrap"		=> 74,
	"Outbox-name"	=> "Outbox",	# Name of category for outgoing mail

	"Paragraph"	=> "",		# Paragraph indent
	"Line-Indent"	=> "",		# Line indentation
);

my $VERSION = (qw( $Revision: 1.9 $ ))[1];	# Conduit version

# print_header
# Print a valid mail header. Headers with empty values are ignored.
# Newlines are replaced with newline-whitespace, per RFC822.
sub print_header
{
	my $header_name = shift;
	my $header_content = shift;

	if (!defined($header_content) || ($header_content eq ""))
	{
		# Empty header
		return;
	}

	$header_content =~ s/\n(?!\s)/\n\t/mg;
	print SENDMAIL "$header_name: $header_content\n";
}

StartConduit("dump");

$Text::Wrap::columns = $HEADERS{Wrap};
my $record;
foreach $record (@{$PDB->{records}})
{
	# Skip everything except the Outbox folder
	next unless $PDB->{appinfo}{categories}[$record->{category}]{name}
		eq $HEADERS{"Outbox-name"};

	my $whoami = $HEADERS{"My-Address"};
	my @sm_args;		# Sendmail command-line arguments

	@sm_args = ("-t", "-i");	# -t: get addressee from the
					# body of the message
					# -i: ignore lines consisting of
					# a single dot.
	if ($record->{confirm_delivery})
	{
		push @sm_args, "-N", "success,failure";
	}

	open SENDMAIL, "| $HEADERS{Sendmail} @sm_args" or
		die "502 Can't run $HEADERS{Sendmail}: $!\n";
	select SENDMAIL;

	# Print header fields so that they conform to RFC822 (a continuation
	# line must start with a whitespace or tab character).
	&print_header("From", $whoami);
	&print_header("To", $record->{"to"});
	&print_header("Cc", $record->{"cc"});
	&print_header("Bcc", $record->{bcc});
	&print_header("Reply-To", $record->{reply_to})
	&print_header("X-Sent-To", $record->{send_to});
	&print_header("X-Mailer",
	    "$HEADERS{Daemon} $HEADERS{Version}/send-mail conduit $VERSION");
	&print_header("Subject", $record->{subject});

	my $body = $record->{body};

	$body .= "\n" if $body !~ /\n$/m;	# Make sure message ends in \n

	# Wrap the text if requested
	$body = wrap($HEADERS{"Paragraph"}, $HEADERS{"Line-Indent"},
			$record->{body})
		if $HEADERS{Wrap} > 0;

	print "\n", $body;

	select STDOUT;
	close SENDMAIL;

	$PDB->delete_Record($record, 1);
}

$PDB->Write($HEADERS{OutputDB} || $HEADERS{InputDB});

EndConduit;

__END__

=head1 NAME

send-mail - ColdSync conduit to send Palm mail

=head1 SYNOPSIS

    conduit dump {
        type: mail/DATA;
        path: "<...>/send-mail";
      arguments:
        Sendmail:	/path/to/sendmail;
        My-Address:	user@my.dom.ain;
        Outbox-name:	Outbox;
    }

=head1 DESCRIPTION

The C<send-mail> conduit reads the Palm Mail database, finds the
outgoing messages, and passes them on to C<sendmail> for further
processing.

Once each message has been successfully passed along to C<sendmail>,
it is deleted.

=head1 OPTIONS

=over 4

=item C<Sendmail>

Specifies the path to the C<sendmail> executable. The default is
F</usr/sbin/sendmail>.

=item C<My-Address>

Specifies the return address to put on outgoing messages. If omitted,
defaults to your username (or, more precisely, the username of the
first user with your uid).

=item C<Wrap>

Specifies the column at which to wrap long lines. Defaults to 74. A
value of 0 specifies that text should not be wrapped.

=item C<Outbox-name>

Specifies the category where outgoing messages are stored.
If omitted, the default F<Outbox> is used. For German use F<Ausgang>.

=head1 BUGS

Messages that were successfully sent are not immediately deleted on
the Palm, but remain until the next sync. This is a limitation of
ColdSync's conduit model.

The ``Confirm Read'' flag, as well as the various conduit-related
options on the Palm, are ignored.

The ``Signature'' option on the Palm is ignored; this will most likely
not be fixed. Nor is there an option to include a F<.signature> file
on the desktop machine; this will most likely be fixed.

=head1 AUTHOR

Andrew Arensburger E<lt>arensb@ooblick.comE<gt>

=head1 SEE ALSO

coldsync(8)

F<ColdSync Conduits>, in the ColdSync documentation.