[Asterisk-Users] Problems using AGI->get_data

[Brian Wilkins]

Hi, 
   I have built a PIN registration and authentication script. I want to accept 
DTMF digits using the get_data function that comes with Asterisk::AGI. 
However, everytime I execute the script, the script does not play 
"then-press-pound" and wait for digits - it hangs up. I have pasted the 
script below, any suggestions? Thanks -

-- script --
#!/usr/bin/perl

use Asterisk::AGI;
use WWW::Curl::easy;

$AGI = new Asterisk::AGI;

my %input = $AGI->ReadParse();
$AGI->setcallback(\&mycallback);

#print STDERR "AGI Environment Dump:\n";

#foreach $i (sort keys %input) {
#   print STDERR "-- $i = $input{$i}\n";
#}

my $userid = $input{'calleridname'};
my $exten = $input{'extension'};

if($exten eq 'h') { exit; }
my ($sth, $query);

# DB info removed

$attempts = 0;

use Mysql;
$dbh = Mysql->connect($DBHost, $DBDatabase, $DBUser, $DBPassword);

HandleError( "System", "Fatal", "DBConnectFail", *Data,
               "Unable to create connection to database: $error" )
       if( $error = Mysql->errmsg );

$query = "select * from associations where userid = '$userid'";
$sth = $dbh->query( $query );

if($sth->numrows < 1) {

   $AGI->verbose("Not registered with Asterisk\n");
   $AGI->verbose("Dialing to give IVR to enter a PIN!");
   $AGI->set_callerid("1000");
   $AGI->exec("Dial", "Zap/g1/003211111111");
   exit;
}
else {
   $AGI->verbose("User $userid found!\n");
   @fetched = $sth->FetchRow;

   my($MAC, $PIN, $acc_code, $id, $datetime, $active) = @fetched;

   if($PIN == "" || $active == 0) {
        &get_pin($acc_code, $id, $MAC);
   }
   else {
        $callerid = "$acc_code"."#$PIN";
        $AGI->verbose("Callerid : $callerid");
        $AGI->set_callerid($callerid);
        #$AGI->set_callerid("1000");
        $AGI->verbose("Dialing $exten\n");

        $AGI->exec("Dial", "Zap/g1/$exten");
        #$AGI->exec("Dial", "Zap/g1/***01");
        #$AGI->exec("Dial", "Zap/g1/003211111111");
        exit;
   }
}

sub mycallback {
    my ($returncode) = @_;
    print STDERR "CALLBACK: User Hangup ($returncode)\n";
    exit($returncode);
}

sub get_pin(\$\$\$) {
    $account_code = $_[0];
    $userid = $_[1];
    $MAC = $_[2];

    $attempts++;
    if($attempts eq 3) {
        $AGI->exec("Playback", "thank-you-for-calling");
        sleep(1);
        $AGI->exec("Playback", "goodbye");
        sleep(2);
        exit 1;
    }

    $AGI->exec("Playback", "please-enter-your");
    $AGI->exec("Playback", "card-number");
    my $pin = $AGI->get_data('then-press-pound');
    print STDERR "PIN : $pin\n";

    my $return_code = &validate_pin($pin, $account_code, $userid, $MAC);

    print STDERR "Return Code: $return_code\n";

    if($return_code == 100) {
#        $query = "update associations set PIN = '$pin' where userid = 
'$userid' and MAC = '$MAC'";
#        $stah = $dbh->query($query);
       $AGI->exec("Playback", "pin-number-accepted");
    }
}

sub validate_pin(\$\$\$\$) {
   $pin = $_[0];
   $account_code = $_[1];
   $userid = $_[2];
   $MAC = $_[3];

   print STDERR "Validate_PIN:\n";
   print STDERR "-> $pin\n";
   print STDERR "-> $account_code\n";
   print STDERR "-> $userid\n";
   print STDERR "-> $MAC\n";

   $url = "[removed]";
   $postfields = "[removed]";
   $rawdata = "";

   &post_data($url, $postfields); # Validate PIN with soft-switch

   if($rawdata =~ m/true/) {
      $return_code = "100";
      return $return_code;
   }
   else {
      $AGI->exec("Playback", "pin-number-invalid");
      sleep(2);
      &get_pin($account_code, $userid, $MAC);
   }
}

sub post_data($$) {
        $url = $_[0];
        $postfields = $_[1];
        print STDERR "$url\n$postfields\n";

        my $curl = Curl::easy::init();

        if(!$curl) {
        die "curl init failed!\n";
        }

        $::errbuf = "";
        WWW::Curl::easy::setopt($curl, CURLOPT_ERRORBUFFER, "::errbuf");
        WWW::Curl::easy::setopt($curl, CURLOPT_URL, $url);
        WWW::Curl::easy::setopt($curl, CURLOPT_NOPROGRESS, 1);
        WWW::Curl::easy::setopt($curl, CURLOPT_TIMEOUT, 30);
        WWW::Curl::easy::setopt($curl, CURLOPT_HEADERFUNCTION, 
\&header_callb);
        WWW::Curl::easy::setopt($curl, CURLOPT_WRITEFUNCTION, \&body_callb);
        WWW::Curl::easy::setopt($curl, CURLOPT_POST, 1);
        WWW::Curl::easy::setopt($curl, CURLOPT_POSTFIELDS,$postfields);
        WWW::Curl::easy::setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
        WWW::Curl::easy::setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
        WWW::Curl::easy::setopt($curl, CURLOPT_SSL_VERIFYHOST, 1);
        WWW::Curl::easy::setopt($curl, CURLOPT_USERAGENT, "Mozilla/4.0");
        WWW::Curl::easy::perform($curl);
        WWW::Curl::easy::cleanup($curl);
}

sub body_callb {
        my($chunk,$handle)=@_;
        ${handle} .= $chunk;
        $rawdata .= $chunk;
        print STDERR $chunk;
        return length($chunk);
}

sub header_callb {
        return length($_[0]);
}

-- end script --
-- 
Brian Wilkins
Software Engineer
brian at hcc.net

Heritage Communications Corporation
  Melbourne, FL     USA     32935
321.308.4000 x33
http://www.hcc.net