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#!/usr/bin/perl
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This Source Code Form is "Incompatible With Secondary Licenses", as
# defined by the Mozilla Public License, v. 2.0.
use 5.10.1;
use strict;
use warnings;
use lib qw(.. ../lib ../local/lib/perl5);
use Bugzilla ();
use Bugzilla::Constants qw(ERROR_MODE_DIE);
use Bugzilla::Logging;
use Bugzilla::Mailer qw(MessageToMTA);
use Bugzilla::User ();
use Bugzilla::Util qw(html_quote remote_ip);
use JSON::MaybeXS qw(decode_json);
use LWP::UserAgent ();
use Try::Tiny qw(catch try);
Bugzilla->error_mode(ERROR_MODE_DIE);
try {
main();
}
catch {
FATAL("Fatal error: $_");
respond( 500 => 'Internal Server Error' );
};
sub main {
my $message = decode_json_wrapper( Bugzilla->cgi->param('POSTDATA') ) // return;
my $message_type = $ENV{HTTP_X_AMZ_SNS_MESSAGE_TYPE} // '(missing)';
if ( $message_type eq 'SubscriptionConfirmation' ) {
confirm_subscription($message);
}
elsif ( $message_type eq 'Notification' ) {
my $notification = decode_json_wrapper( $message->{Message} ) // return;
unless (
# https://docs.aws.amazon.com/ses/latest/DeveloperGuide/event-publishing-retrieving-sns-contents.html
handle_notification( $notification, 'eventType' )
# https://docs.aws.amazon.com/ses/latest/DeveloperGuide/notification-contents.html
|| handle_notification( $notification, 'notificationType' )
)
{
WARN('Failed to find notification type');
respond( 400 => 'Bad Request' );
}
}
else {
WARN("Unsupported message-type: $message_type");
respond( 200 => 'OK' );
}
}
sub confirm_subscription {
my ($message) = @_;
my $subscribe_url = $message->{SubscribeURL};
if ( !$subscribe_url ) {
WARN('Bad SubscriptionConfirmation request: missing SubscribeURL');
respond( 400 => 'Bad Request' );
return;
}
my $ua = ua();
my $res = $ua->get( $message->{SubscribeURL} );
if ( !$res->is_success ) {
WARN( 'Bad response from SubscribeURL: ' . $res->status_line );
respond( 400 => 'Bad Request' );
return;
}
respond( 200 => 'OK' );
}
sub handle_notification {
my ( $notification, $type_field ) = @_;
if ( !exists $notification->{$type_field} ) {
return 0;
}
my $type = $notification->{$type_field};
if ( $type eq 'Bounce' ) {
process_bounce($notification);
}
elsif ( $type eq 'Complaint' ) {
process_complaint($notification);
}
else {
WARN("Unsupported notification-type: $type");
respond( 200 => 'OK' );
}
return 1;
}
sub process_bounce {
my ($notification) = @_;
my $type = $notification->{bounce}->{bounceType};
if ( $type eq 'Transient' ) {
# just log transient bounces
foreach my $recipient ( @{ $notification->{bounce}->{bouncedRecipients} } ) {
my $address = $recipient->{emailAddress};
Bugzilla->audit("transient bounce for <$address>");
}
}
elsif ( $type eq 'Permanent' ) {
# disable each account that is permanently bouncing
foreach my $recipient ( @{ $notification->{bounce}->{bouncedRecipients} } ) {
my $address = $recipient->{emailAddress};
my $reason = sprintf '(%s) %s', $recipient->{action} // 'error', $recipient->{diagnosticCode} // 'unknown';
my $user = Bugzilla::User->new( { name => $address, cache => 1 } );
if ($user) {
# never auto-disable admin accounts
if ( $user->in_group('admin') ) {
Bugzilla->audit("ignoring permanent bounce for admin <$address>: $reason");
}
else {
my $template = Bugzilla->template_inner();
my $vars = {
mta => $notification->{bounce}->{reportingMTA} // 'unknown',
reason => $reason,
};
my $disable_text;
$template->process( 'admin/users/bounce-disabled.txt.tmpl', $vars, \$disable_text )
|| die $template->error();
$user->set_disabledtext($disable_text);
$user->set_disable_mail(1);
$user->update();
Bugzilla->audit( "permanent bounce for <$address> disabled userid-" . $user->id . ": $reason" );
}
}
else {
Bugzilla->audit("permanent bounce for <$address> has no user: $reason");
}
}
}
else {
WARN("Unsupported bounce type: $type\n");
}
respond( 200 => 'OK' );
}
sub process_complaint {
# email notification to bugzilla admin
my ($notification) = @_;
my $template = Bugzilla->template_inner();
my $json = JSON::MaybeXS->new(
pretty => 1,
utf8 => 1,
canonical => 1,
);
foreach my $recipient ( @{ $notification->{complaint}->{complainedRecipients} } ) {
my $reason = $notification->{complaint}->{complaintFeedbackType} // 'unknown';
my $address = $recipient->{emailAddress};
Bugzilla->audit("complaint for <$address> for '$reason'");
my $vars = {
email => $address,
user => Bugzilla::User->new( { name => $address, cache => 1 } ),
reason => $reason,
notification => $json->encode($notification),
};
my $message;
$template->process( 'email/ses-complaint.txt.tmpl', $vars, \$message )
|| die $template->error();
MessageToMTA($message);
}
respond( 200 => 'OK' );
}
sub respond {
my ( $code, $message ) = @_;
print Bugzilla->cgi->header( -status => "$code $message" );
# apache will generate non-200 response pages for us
say html_quote($message) if $code == 200;
}
sub decode_json_wrapper {
my ($json) = @_;
my $result;
if ( !defined $json ) {
WARN( 'Missing JSON from ' . remote_ip() );
respond( 400 => 'Bad Request' );
return undef;
}
my $ok = try {
$result = decode_json($json);
}
catch {
WARN( 'Malformed JSON from ' . remote_ip() );
respond( 400 => 'Bad Request' );
return undef;
};
return $ok ? $result : undef;
}
sub ua {
my $ua = LWP::UserAgent->new();
$ua->timeout(10);
$ua->protocols_allowed( [ 'http', 'https' ] );
if ( my $proxy_url = Bugzilla->params->{'proxy_url'} ) {
$ua->proxy( [ 'http', 'https' ], $proxy_url );
}
else {
$ua->env_proxy;
}
return $ua;
}
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