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Callback.pm
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Callback.pm
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#
# Common: Shared library for voice-based applications.
#
# Copyright (C) 2010 Nokia Corporation.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Authors: Billy Odero, Jonathan Ledlie
package Nokia::Common::Callback;
use strict;
use Data::Dumper;
use POSIX qw(strftime);
use base 'Asterisk::FastAGI';
use Nokia::Common::Tools;
use Nokia::Common::Sound;
######################################################################
my $DEBUG = 0;
my $RING_SECONDS = 2;
=head1 NAME
Nokia::Common::Callback - Entry point
=head1 DESCRIPTION
Entry point into the system that tries to figure out whether the user is
calling through or just wants to be called back.
=head1 METHODS
=cut
######################################################################
=head2 callback
Entry point into the system. Invoked by Asterisk from extensions.conf.
It sets up the calling user's initial state for each new call.
Listens to the state of a channel to determine whether the user was trying
to call us or wants to be called back. It sets `CBSTATE` to the appropriate
state.
=cut
sub callback {
my ($self) = @_;
$self->log (4, "START COMMON ".&get_channel_desc($self)."\n\n");
my $stamp = time;
$self->{stamp} = time;
$self->{callerid} = $self->input('callerid');
if (defined($self->{callerid})) {
$self->log(4, "CallerID: ".$self->{callerid});
}
$self->{origin} = $self->agi->get_variable('origin');
if (defined($self->{origin})) {
$self->log(4, "Origin: ".$self->{origin});
}
$self->{callout_ext} = $self->agi->get_variable("callout-ext-$self->{origin}");
$self->{sms_number} = $self->agi->get_variable("sms-number-$self->{origin}");
my $ext_origin = "ext-$self->{origin}";
if (defined($ext_origin)) {
$self->log(4, "Call Origin: $ext_origin");
}
eval {
my $init_user_res = &init_user($self);
if ($init_user_res < 0) {
$self->log (4, "init_user rejecting callerid $self->{callerid}");
return;
}
my $status = 0;
for (my $i = 0; $i < 6 && defined($status); $i++) {
if ($DEBUG) { print STDERR "sleeping $i\n"; }
sleep ($RING_SECONDS);
$status = $self->agi->channel_status("");
}
$self->log (4, "done sleeping for callerid $self->{callerid}");
if (!defined($status)) {
# User has hung up.
# Call him back or reject him.
if ($DEBUG) { print STDERR "user hungup\n"; }
# include new user bonus somehow?
$self->{seconds_remaining} = &get_seconds_remaining_count($self);
if ($self->{seconds_remaining} > 0) {
$self->{cbstate} = 'calledback';
} else {
$self->{cbstate} = 'rejected';
}
$self->agi->hangup();
} elsif ($status == 4) {
if ($DEBUG) { print STDERR "user called us\n"; }
# User has rung through.
# Connect him to Interact.
$self->{cbstate} = 'calledus';
} else {
die ("Unknown status $status\n");
}
$self->log (4, "id ".$self->{user}->{id}.
" status $self->{cbstate}");
};
if ($@) {
print STDERR "$stamp error in callback: $@\n";
}
$self->agi->set_variable("CBSTATE","$self->{cbstate}");
$self->agi->set_variable("OUTBOUNDID","$self->{user}->{phone}");
$self->log (4, "END COMMON ".&get_channel_desc($self)."\n\n");
}
######################################################################
=head1 AUTHORS
Billy Odero, Jonathan Ledlie
Copyright (C) 2010 Nokia Corporation.
=cut
1;