#!/usr/bin/perl
#/* ========================================
# * ███╗   ███╗██████╗ ██╗ █████╗ ██╗
# * ████╗ ████║██╔══██╗██║██╔══██╗██║
# * ██╔████╔██║██║  ██║██║███████║██║
# * ██║╚██╔╝██║██║  ██║██║██╔══██║██║
# * ██║ ╚═╝ ██║██████╔╝██║██║  ██║███████╗
# * ╚═╝     ╚═╝╚═════╝ ╚═╝╚═╝  ╚═╝╚══════╝
# * ========================================
# * mDial - Omni-Channel Contact Centre Suite.
# * Initially Written by Martin McCarthy.
# * Contributions welcome.
# * Active: 2020 - 2023.
# *
# * This software is licensed under AGPLv2.
# * You can find more information here;
# * https://www.gnu.org/licenses/agpl-3.0.en.html
# * A copy of the license is also shipped with this build.
# *
# * Important note: this software is provided to you free of charge.
# * If you paid for this software, you were ripped off.
# *
# * This project is a fork of the awesome FOSS project, ViCiDial.
# * ViCiDial is copyrighted by Matt Florell and the ViCiDial Group
# * under the AGPLv2 license.
# *
# * You can find out more about ViCiDial;
# * Web: https://www.vicidial.com/
# * Email: Matt Florell <vicidial@gmail.com>
# * IRC: Libera.Chat - ##vicidial
# *
# * Bug reports, feature requests and patches welcome!
# * ======================================== */
&get_time_now;
$start_epoch    = $now_date_epoch;
$script         = 'agi-AGENT_dial_in.agi';
$now_date_epoch = time();
$now_date       = "$year-$mon-$mday $hour:$min:$sec";
( $sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst ) =
  localtime(time);
$year = ( $year + 1900 );
$mon++;
if ( $mon < 10 )  { $mon  = "0$mon"; }
if ( $mday < 10 ) { $mday = "0$mday"; }
if ( $hour < 10 ) { $hour = "0$hour"; }
if ( $min < 10 )  { $min  = "0$min"; }
if ( $sec < 10 )  { $sec  = "0$sec"; }
$US       = '_';
$PATHconf = '/etc/astguiclient.conf';
open( conf, "$PATHconf" ) || die "can't open $PATHconf: $!\n";
@conf = <conf>;
close(conf);
$i = 0;

foreach (@conf) {
    $line = $conf[$i];
    $line =~ s/ |>|\n|\r|\t|\#.*|;.*//gi;
    if ( ( $line =~ /^PATHlogs/ ) && ( $CLIlogs < 1 ) ) {
        $PATHlogs = $line;
        $PATHlogs =~ s/.*=//gi;
    }
    if ( ( $line =~ /^PATHsounds/ ) && ( $CLIsounds < 1 ) ) {
        $PATHsounds = $line;
        $PATHsounds =~ s/.*=//gi;
    }
    if ( ( $line =~ /^PATHmonitor/ ) && ( $CLImonitor < 1 ) ) {
        $PATHmonitor = $line;
        $PATHmonitor =~ s/.*=//gi;
    }
    if ( ( $line =~ /^VARserver_ip/ ) && ( $CLIserver_ip < 1 ) ) {
        $VARserver_ip = $line;
        $VARserver_ip =~ s/.*=//gi;
    }
    if ( ( $line =~ /^VARDB_server/ ) && ( $CLIDB_server < 1 ) ) {
        $VARDB_server = $line;
        $VARDB_server =~ s/.*=//gi;
    }
    if ( ( $line =~ /^VARDB_database/ ) && ( $CLIDB_database < 1 ) ) {
        $VARDB_database = $line;
        $VARDB_database =~ s/.*=//gi;
    }
    if ( ( $line =~ /^VARDB_user/ ) && ( $CLIDB_user < 1 ) ) {
        $VARDB_user = $line;
        $VARDB_user =~ s/.*=//gi;
    }
    if ( ( $line =~ /^VARDB_pass/ ) && ( $CLIDB_pass < 1 ) ) {
        $VARDB_pass = $line;
        $VARDB_pass =~ s/.*=//gi;
    }
    if ( ( $line =~ /^VARDB_port/ ) && ( $CLIDB_port < 1 ) ) {
        $VARDB_port = $line;
        $VARDB_port =~ s/.*=//gi;
    }
    $i++;
}
if ( !$VARDB_port ) { $VARDB_port = '3306'; }
if ( !$AGILOGfile ) { $AGILOGfile = "$PATHlogs/ivrout.$year-$mon-$mday"; }
use DBI;
use Asterisk::AGI;
$AGI  = new Asterisk::AGI;
$dbhA = DBI->connect( "DBI:mysql:$VARDB_database:$VARDB_server:$VARDB_port",
    "$VARDB_user", "$VARDB_pass" )
  or die "Couldn't connect to database: " . DBI->errstr;
if ( length( $ARGV[0] ) > 1 ) {
    if ($AGILOG) { $agi_string = "Perl Environment Dump:"; &agi_output; }
    $i = 0;
    while ( $#ARGV >= $i ) {
        $args = "$args $ARGV[$i]";
        if ($AGILOG) { $agi_string = "$i|$ARGV[$i]"; &agi_output; }
        $i++;
    }
    @ARGV_vars     = split( /---/, $ARGV[0] );
    $user_id_only  = $ARGV_vars[0];
    $use_call_menu = $ARGV_vars[1];
}
if ( ( length($user_id_only) < 1 ) || ( $user_id_only !~ /Y|N/ ) ) {
    $user_id_only = 'N';
}
if ( ( length($use_call_menu) < 1 ) || ( $use_call_menu !~ /Y|N/ ) ) {
    $use_call_menu = 'N';
}
$| = 1;
while (<STDIN>) {
    chomp;
    last unless length($_);
    if ($V) {
        if (/^agi_(\w+)\:\s+(.*)$/) {
            $AGI{$1} = $2;
        }
    }
    if (/^agi_context\:\s+(.*)$/)      { $context      = $1; }
    if (/^agi_uniqueid\:\s+(.*)$/)     { $unique_id    = $1; }
    if (/^agi_extension\:\s+(.*)$/)    { $extension    = $1; }
    if (/^agi_channel\:\s+(.*)$/)      { $channel      = $1; }
    if (/^agi_callerid\:\s+(.*)$/)     { $callerid     = $1; }
    if (/^agi_calleridname\:\s+(.*)$/) { $calleridname = $1; }
}
if (   ( $callerid =~ /\".*\"/ )
    && ( ( !$calleridname ) or ( $calleridname =~ /unknown/ ) ) )
{
    $calleridname = $callerid;
    $calleridname =~ s/\<\d\d\d\d\d\d\d\d\d\d\>//gi;
    $calleridname =~ s/\"|\" //gi;
}
$callerid     =~ s/\D//gi;
$calleridname =~ s/unknown//gi;
if ( ( !$callerid ) or ( $callerid =~ /unknown/ ) ) {
    $callerid = $calleridname;
}
$phone_number = $callerid;
$stmtA =
"SELECT ext_context,agi_output FROM servers where server_ip = '$VARserver_ip';";
$sthA = $dbhA->prepare($stmtA) or die "preparing: ",        $dbhA->errstr;
$sthA->execute                 or die "executing: $stmtA ", $dbhA->errstr;
$sthArows  = $sthA->rows;
$rec_count = 0;
while ( $sthArows > $rec_count ) {
    @aryA          = $sthA->fetchrow_array;
    $DBext_context = "$aryA[0]";
    $DBagi_output  = "$aryA[1]";
    if ($DBext_context)              { $ext_context = $DBext_context; }
    if ( $DBagi_output =~ /STDERR/ ) { $AGILOG      = '1'; }
    if ( $DBagi_output =~ /FILE/ )   { $AGILOG      = '2'; }
    if ( $DBagi_output =~ /BOTH/ )   { $AGILOG      = '3'; }
    $rec_count++;
}
$sthA->finish();
$AGI->stream_file('sip-silence');
$AGI->stream_file('sip-silence');
$entry_chances  = 0;
$VALID_login    = 0;
$ACTIVE_login   = 0;
$VDADremDIALstr = '';

while ( ( $entry_chances < 3 ) && ( $VALID_login < 1 ) ) {
    $entry_chances++;
    &user_password_gather;
    if ( $user_id_only =~ /CONTACT/ ) {
        $stmtA =
"SELECT alt_log_server_ip,alt_log_dbname,alt_log_login,alt_log_pass,tables_use_alt_log_db FROM system_settings;";
        $sthA = $dbhA->prepare($stmtA) or die "preparing: ", $dbhA->errstr;
        $sthA->execute or die "executing: $stmtA ",          $dbhA->errstr;
        $sthArows = $sthA->rows;
        if ( $sthArows > 0 ) {
            @aryA                  = $sthA->fetchrow_array;
            $alt_log_server_ip     = $aryA[0];
            $alt_log_dbname        = $aryA[1];
            $alt_log_login         = $aryA[2];
            $alt_log_pass          = $aryA[3];
            $tables_use_alt_log_db = $aryA[4];
        }
        $sthA->finish();
        if (   ( $tables_use_alt_log_db =~ /contact_information/ )
            && ( length($alt_log_server_ip) > 4 )
            && ( length($alt_log_dbname) > 0 ) )
        {
            $linkALT = DBI->connect(
                "DBI:mysql:$alt_log_dbname:$alt_log_server_ip:$VARDB_port",
                "$alt_log_login", "$alt_log_pass" )
              or die "Couldn't connect to database: " . DBI->errstr;
        }
        else { $linkALT = $dbhA; }
        $stmtA =
"SELECT count(*) FROM contact_information where office_num='$PIN_number';";
        $sthA = $linkALT->prepare($stmtA) or die "preparing: ", $dbhA->errstr;
        $sthA->execute or die "executing: $stmtA ", $linkALT->errstr;
        $sthArows = $sthA->rows;
        if ( $sthArows > 0 ) {
            @aryA        = $sthA->fetchrow_array;
            $VALID_login = "$aryA[0]";
        }
        $sthA->finish();
    }
    else {
        $stmtA =
"SELECT count(*) FROM vicidial_users where user='$PIN_number' and pass='$PASS_word' and active='Y';";
        if ( $user_id_only =~ /Y/ ) {
            $stmtA =
"SELECT count(*) FROM vicidial_users where user='$PIN_number' and active='Y';";
        }
        $sthA = $dbhA->prepare($stmtA) or die "preparing: ", $dbhA->errstr;
        $sthA->execute or die "executing: $stmtA ",          $dbhA->errstr;
        $sthArows = $sthA->rows;
        if ( $sthArows > 0 ) {
            @aryA        = $sthA->fetchrow_array;
            $VALID_login = "$aryA[0]";
        }
        $sthA->finish();
    }
    if ( $VALID_login > 0 ) {
        $AGI->exec("EXEC Set(_agent_user_id=$PIN_number)");
        $AGI->stream_file('pin-number-accepted');
    }
    else {
        $AGI->stream_file('pin-invalid');
    }
}
if ( $VALID_login < 1 ) {
    if ($AGILOG) {
        $agi_string =
          "DIAL-IN END: Invalid Login   |$VALID_login|$PIN_number|$PASS_word|";
        &agi_output;
    }
    if ( $use_call_menu =~ /Y/ ) {
        if ($AGILOG) {
            $agi_string =
"exiting the agent dial-in app, transferring call to B @ $context";
            &agi_output;
        }
        print "SET CONTEXT $context\n";
        $result = <STDIN>;
        checkresult($result);
        print "SET EXTENSION B\n";
        $result = <STDIN>;
        checkresult($result);
        print "SET PRIORITY 1\n";
        $result = <STDIN>;
        checkresult($result);
    }
    else {
        $AGI->stream_file('vm-goodbye');
        $AGI->hangup();
        $dbhA->disconnect();
    }
    exit;
}
else {
    $secX     = time();
    $PDtarget = ( $secX - 30 );
    ( $Psec, $Pmin, $Phour, $Pmday, $Pmon, $Pyear, $Pwday, $Pyday, $Pisdst ) =
      localtime($PDtarget);
    $Pyear = ( $Pyear + 1900 );
    $Pmon++;
    if ( $Pmon < 10 )  { $Pmon  = "0$Pmon"; }
    if ( $Pmday < 10 ) { $Pmday = "0$Pmday"; }
    if ( $Phour < 10 ) { $Phour = "0$Phour"; }
    if ( $Pmin < 10 )  { $Pmin  = "0$Pmin"; }
    if ( $Psec < 10 )  { $Psec  = "0$Psec"; }
    $PDtsSQLdate = "$Pyear$Pmon$Pmday$Phour$Pmin$Psec";

    if ( $use_call_menu =~ /Y/ ) {
        if ($AGILOG) {
            $agi_string =
"exiting the agent dial-in app, transferring call to A @ $context";
            &agi_output;
        }
        print "SET CONTEXT $context\n";
        $result = <STDIN>;
        checkresult($result);
        print "SET EXTENSION A\n";
        $result = <STDIN>;
        checkresult($result);
        print "SET PRIORITY 1\n";
        $result = <STDIN>;
        checkresult($result);
        exit;
    }
    else {
        $stmtA =
"SELECT count(*) FROM vicidial_live_agents where user='$PIN_number' and last_update_time > \"$PDtsSQLdate\";";
        $sthA = $dbhA->prepare($stmtA) or die "preparing: ", $dbhA->errstr;
        $sthA->execute or die "executing: $stmtA ",          $dbhA->errstr;
        $sthArows = $sthA->rows;
        if ( $sthArows > 0 ) {
            @aryA         = $sthA->fetchrow_array;
            $ACTIVE_login = "$aryA[0]";
        }
        $sthA->finish();
        if ( $ACTIVE_login < 1 ) {
            if ($AGILOG) {
                $agi_string =
"DIAL-IN END: Inactive Login   |$VALID_login|$PIN_number|$PASS_word|  |$ACTIVE_login|$PDtsSQLdate|";
                &agi_output;
            }
            $AGI->stream_file('login-fail');
            $AGI->stream_file('you-must-be-logged-in');
            $AGI->stream_file('vm-goodbye');
            $AGI->hangup();
            $dbhA->disconnect();
            exit;
        }
        else {
            $stmtA =
"SELECT conf_exten,extension,server_ip from vicidial_live_agents WHERE user='$PIN_number' limit 1;";
            if ($AGILOG) { $agi_string = "|$stmtA|"; &agi_output; }
            $sthA = $dbhA->prepare($stmtA) or die "preparing: ", $dbhA->errstr;
            $sthA->execute or die "executing: $stmtA ",          $dbhA->errstr;
            $sthArows          = $sthA->rows;
            $rec_countCUSTDATA = 0;
            if ( $sthArows > 0 ) {
                @aryA           = $sthA->fetchrow_array;
                $VDADconf_exten = "$aryA[0]";
                $VDADextension  = "$aryA[1]";
                $VDADserver_ip  = "$aryA[2]";
            }
            $sthA->finish();
            $S = '*';
            if ( $VDADserver_ip =~ m/(\S+)\.(\S+)\.(\S+)\.(\S+)/ ) {
                $a              = leading_zero($1);
                $b              = leading_zero($2);
                $c              = leading_zero($3);
                $d              = leading_zero($4);
                $VDADremDIALstr = "$a$S$b$S$c$S$d$S";
            }
            $VDADremDIALstr .= "$VDADconf_exten";
            if ($AGILOG) {
                $agi_string = "Agent $PIN_number sent to $VDADremDIALstr";
                &agi_output;
            }
            print "SET CONTEXT $ext_context\n";
            $result = <STDIN>;
            checkresult($result);
            print "SET EXTENSION $VDADremDIALstr\n";
            $result = <STDIN>;
            checkresult($result);
            print "SET PRIORITY 1\n";
            $result = <STDIN>;
            checkresult($result);
        }
    }
}
$dbhA->disconnect();
exit;

sub user_password_gather {
    $interrupt_digit = '';
    $interrupt_digit =
      $AGI->stream_file( 'ld_welcome_pin_number', '0123456789' );
    print STDERR "interrupt_digit |$interrupt_digit|\n";
    $digits_being_entered = 1;
    $PIN_number           = '';
    if ( $interrupt_digit > 0 ) {
        if ( $interrupt_digit == 48 ) { $interrupt_digit = 0; }
        if ( $interrupt_digit == 49 ) { $interrupt_digit = 1; }
        if ( $interrupt_digit == 50 ) { $interrupt_digit = 2; }
        if ( $interrupt_digit == 51 ) { $interrupt_digit = 3; }
        if ( $interrupt_digit == 52 ) { $interrupt_digit = 4; }
        if ( $interrupt_digit == 53 ) { $interrupt_digit = 5; }
        if ( $interrupt_digit == 54 ) { $interrupt_digit = 6; }
        if ( $interrupt_digit == 55 ) { $interrupt_digit = 7; }
        if ( $interrupt_digit == 56 ) { $interrupt_digit = 8; }
        if ( $interrupt_digit == 57 ) { $interrupt_digit = 9; }
        $PIN_number = $interrupt_digit;
    }
    $digit_loop_counter = 0;
    while ( ( $digits_being_entered > 0 ) && ( $digit_loop_counter < 20 ) ) {
        $digit = chr( $AGI->wait_for_digit('10000') )
          ;    # wait 10 seconds for input or until the pound key is pressed
        if ( $digit =~ /\d/ ) {
            $PIN_number = "$PIN_number$digit";
            print STDERR "digit |$digit|     PIN_number |$PIN_number|\n";
            undef $digit;
        }
        else {
            $digits_being_entered = 0;
        }
        $digit_loop_counter++;
    }
    $PIN_number =~ s/\D//gi;
    if ($PIN_number) {
        print STDERR "digit |$digit|     PIN_number |$PIN_number|\n";
    }
    if ( $user_id_only !~ /Y|CONTACT/ ) {
        $interrupt_digit = '';
        $interrupt_digit = $AGI->stream_file( 'enter-password', '0123456789' );
        print STDERR "interrupt_digit |$interrupt_digit|\n";
        $digits_being_entered = 1;
        $PASS_word            = '';
        if ( $interrupt_digit > 0 ) {
            if ( $interrupt_digit == 48 ) { $interrupt_digit = 0; }
            if ( $interrupt_digit == 49 ) { $interrupt_digit = 1; }
            if ( $interrupt_digit == 50 ) { $interrupt_digit = 2; }
            if ( $interrupt_digit == 51 ) { $interrupt_digit = 3; }
            if ( $interrupt_digit == 52 ) { $interrupt_digit = 4; }
            if ( $interrupt_digit == 53 ) { $interrupt_digit = 5; }
            if ( $interrupt_digit == 54 ) { $interrupt_digit = 6; }
            if ( $interrupt_digit == 55 ) { $interrupt_digit = 7; }
            if ( $interrupt_digit == 56 ) { $interrupt_digit = 8; }
            if ( $interrupt_digit == 57 ) { $interrupt_digit = 9; }
            $PASS_word = $interrupt_digit;
        }
        $digit_loop_counter = 0;
        while ( ( $digits_being_entered > 0 ) && ( $digit_loop_counter < 20 ) )
        {
            $digit = chr( $AGI->wait_for_digit('10000') )
              ;    # wait 10 seconds for input or until the pound key is pressed
            if ( $digit =~ /\d/ ) {
                $PASS_word = "$PASS_word$digit";
                print STDERR "digit |$digit|     PASS_word |$PASS_word|\n";
                undef $digit;
            }
            else {
                $digits_being_entered = 0;
            }
            $digit_loop_counter++;
        }
        $PASS_word =~ s/\D//gi;
        if ($PASS_word) {
            print STDERR
"digit |$digit|     PASS_word |$PASS_word| PIN_number |$PIN_number|\n";
        }
    }
}

sub get_time_now #get the current date and time and epoch for logging call lengths and datetimes
{
    ( $sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst ) =
      localtime(time);
    $year = ( $year + 1900 );
    $mon++;
    if ( $mon < 10 )  { $mon  = "0$mon"; }
    if ( $mday < 10 ) { $mday = "0$mday"; }
    if ( $hour < 10 ) { $hour = "0$hour"; }
    if ( $min < 10 )  { $min  = "0$min"; }
    if ( $sec < 10 )  { $sec  = "0$sec"; }
    $now_date_epoch = time();
    $now_date       = "$year-$mon-$mday $hour:$min:$sec";
    $filedate       = "$year$mon$mday$hour$min$sec";
}

sub checkresult {
    my ($res) = @_;
    my $retval;
    $tests++;
    chomp $res;
    if ( $res =~ /^200/ ) {
        $res =~ /result=(-?\d+)/;
        if ( !length($1) ) {
            print STDERR "FAIL ($res)\n";
            $fail++;
        }
        else {
            print STDERR "PASS ($1)\n";
            $pass++;
        }
    }
    else {
        print STDERR "FAIL (unexpected result '$res')\n";
        $fail++;
    }
}

sub agi_output {
    if ( $AGILOG >= 2 ) {
        open( Lout, ">>$AGILOGfile" )
          || die "Can't open $AGILOGfile: $!\n";
        print Lout "$now_date|$script|$agi_string\n";
        close(Lout);
    }
    if ( ( $AGILOG == '1' ) || ( $AGILOG == '3' ) ) {
        print STDERR "$now_date|$script|$agi_string\n";
    }
    $agi_string = '';
}

sub leading_zero($) {
    $_ = $_[0];
    s/^(\d)$/0$1/;
    s/^(\d\d)$/0$1/;
    return $_;
}    # End of the leading_zero() routine.