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#!/usr/bin/perl -wT

# Copyright (c) 2005, 2006, 2007, 2008, 2013 Peter Palfrader <peter@palfrader.org>
# Copyright (c) 2007, 2008 Joerg Jaspert <joerg@debian.org>
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.



use strict;
use English;
use MIME::Base64;
use File::Basename;
use Mail::Message;
use Encode;

my $MAX_LINES = 4;
my $ENVELOPE_FROM = 'nobody@commit.noreply.org';
my $HEADER_FROM = 'nobody@commit.noreply.org';
my $BOT_ADDRESS = 'commit@commit.noreply.org';
my $SENDMAIL = '/usr/sbin/sendmail';

$ENV{'PATH'} = '/bin:/usr/bin';
delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};

die ("Usage: $PROGRAM_NAME <project> <mailfile>\n") unless (scalar @ARGV == 2);
my $project = $ARGV[0];

umask 077;

$project =~ m/^([a-zA-Z-]+(\.[a-zA-Z-]+)*)+$/;
$project = $1;
die ("Project is not a nice name.\n") unless defined $project;

open (MAIL, $ARGV[1]) || die ("Cannot open $ARGV[1]: $!\n");
my $email =  Mail::Message->read(\*MAIL);
close(MAIL);

my $subject = $email->subject;
my $date = $email->head->get('Date');
my $who = Encode::decode("MIME-Header", ($email->from)[0]->format);
my $author = $email->get("Patch-Author");

die ("$PROGRAM_NAME - $project: No author found.\n") unless defined $who;
die ("$PROGRAM_NAME - $project: No subject found.\n") unless defined $subject;


open(MAIL, "|$SENDMAIL -t -oi -f $ENVELOPE_FROM") or
	die ("Cannot exec sendmail: $!\n");
#open(MAIL, "|cat");
print MAIL "From: $HEADER_FROM\n";
print MAIL "To: $BOT_ADDRESS\n";
print MAIL "Subject: Announce $project\n";
print MAIL "Precedence: junk\n";
print MAIL "Content-Type: text/plain; charset=UTF-8\n";
print MAIL "Content-Transfer-Encoding: base64\n";
print MAIL "\n";

my $at;
if (defined $date) {
	$at = " at $date";
}
my $by='';
if (defined $author) {
	$by = " by $author";
}
$subject =~ s/^\[or-cvs\] *//;
$subject =~ s/\[([^\]]*)\] /to $1: /;
print MAIL encode_base64(Encode::encode('utf-8', "$who committed patch$by$at $subject\n"));
close(MAIL);