#!/usr/bin/perl
#
# File   : v3.3_enter_telnet_ssh_opt.pl
# Desc	 : Spawns multiple Telnet/SSH connections 
# Date	 : 18-Oct-2003
# Author : Premson Rodriguez
#
# Added:
# 27-Oct-2003 
# 28-Oct-2003
# - Added log_stdout to extract info on outputs
# - Added log_stdout to telnet module to see the error prompted during authentication
# - Modified command to include ssh and the path of ssh 
# - Increased speed of the program by reducing timeouts wherever necessary
# 30-Oct-2003
# - Removed Ternary Operators since die was giving problems with outputing messages to logs
#
############################################################################################


use strict;
use Expect;

&usage unless @ARGV;

$|=1;
$Expect::Log_Stdout=1;

my($stdin) = Expect->exp_init(\*STDIN);
my($stdout) = Expect->exp_init(\*STDOUT);
my($host1) = "";
my($host2) = "";
my($host3) = "";
my($user1) = "";
my($pwd1) = "";
my($user2) = "";
my($pwd2) = "";
my($user3) = "";
my($pwd3) = "";
my($extra) = "/usr/local/bin/ssh -V ; ssh -V ; /usr/local/sbin/sshd -v ; ps -ef -o comm | grep sshd | sed -n 1p";
my($i, $flag);
my($alternateTelnet) = "";
my($last_processed) = -1;
my($comm1) = "telnet";
my($comm2) = "ssh -l";
my($space) = " ";

&parseCmdLine;
&connect;

sub connect {

(my $exp=Expect->spawn("$comm1$space$host1")) ? (print "Entering ($host1)\n") : (die "ERR: Spawn failed: $?\n");

#$exp->exp_internal(1);    ## Use this only when you need extreme verbose  
$exp->log_stdout(0); 
         
($exp->expect(10, '-re', qr/((login\:)|(login\:\ ))/i)) ? (print "Entering Login Info\n") : (die "ERR: Telnet Failed on ($host1)\n");

print "Authenticating username ($user1)\n";
print $exp "$user1\r";
#$exp->expect(10, '-re', qr'[$#>:] $') || die "ERR expecting username\n";
($exp->expect(10, '-re', qr/((Password\:)|(Password\:\ ))/i)) ? (print "Entering User Info\n") : (die "ERR: Error expecting ($user1)\n");

print "Authenticating password\n";
print $exp "$pwd1\r";
($exp->expect(10, '-re', qr/^login\:/i)) ? (die "ERR in authenticating user ($user1)\n") : ($exp->expect(10, '-re', qr'[$#>:] $'));

print "Authentication of user ($user1) Successful\n";
print "Executing command ($comm2$space$user2$space$host2)\n";
print $exp "$comm2$space$user2$space$host2\r";
($exp->expect(10, '-re', qr/((password\:)|(password\:\ ))/i)) ? (print "Prompted for Password by ($user2)\n") : (die "ERR: Error expecting ($user2)\n");

print "Sending Password for user ($user2)\n";
print $exp "$pwd2\r";

if ($exp->expect(10, '-re', qr/((password\:)|(password\:\ ))/i)) {
die "ERR: Authentication Failed for ($user2)\n";
} else {
$exp->expect(10, '-re', qr'[$#>:] $') || die "Unable to get prompt\n";
print "Authentication of user ($user2) Successful\n";
}

print "Executing third command ($comm2$space$user3$space$host3) from host ($host2)\n";
print $exp "$comm2$space$user3$space$host3\r";

if ($exp->expect(10, '-re', qr/(yes\/no)/i)) {
print "SSH Public Key ... accepting connection for ($user3)\n";
print $exp "yes\r";

if ($exp->expect(10, '-re', qr/((password\:)|(password\:\ ))/i)) {
print "Prompted (first time) for Password by ($user3)\n";
print "Sending Password for user ($user3)\n";
print $exp "$pwd3\r";

if ($exp->expect(10, '-re', qr/old/i)) {
print "SSH ERR: Prompted for Password Change .... please change and come back.\n";
die "EXITING PROGRAM : SSH ERR: Prompted for Password Change .... please change and come back.\n";
} elsif ($exp->expect(10, '-re', qr/password/i)) {
print "SSH ERR in authenticating user ($user3) ... incorrect user or password.\n";
die "EXITING PROGRAM : SSH ERR in authenticating user ($user3) ... incorrect user or password.\n";
} else {
$exp->expect(10, '-re', qr'[$#>:] $');
}

$exp->log_stdout(1);  ########### Added on 27th Oct 2003
print "Authentication of user ($user3) Successful\n";
print "Executing command ($extra)\n";
$exp->expect(10, '-re', qr'[$#>:] $') || die "ERR expecting shell(1)\n";
print $exp "$extra\r";
$exp->expect(10, '-re', qr'[$#>:] $') || die "ERR expecting third command(1).\n";
$exp->log_stdout(0);  ########### Added on 27th Oct 2003
$alternateTelnet = "1";
} else {
print "SSH ERR: Error Connecting to host ($host3) using user ($user3)\n";
$alternateTelnet = "2";
}}


if ($alternateTelnet == 1) {
print "Successful completion on ($host3) using user ($user3)\n";
} else {
if ($exp->expect(10, '-re', qr/((password\:)|(password\:\ ))/i)) {
print "Prompted for Password by ($user3)\n";
print "Sending Password for user ($user3)\n";
print $exp "$pwd3\r";

if ($exp->expect(10, '-re', qr/old/i)) {
print "SSH ERR: Prompted for Password Change .... please change and come back\n";
die "EXITING PROGRAM : SSH ERR: Prompted for Password Change .... please change and come back\n";
} elsif ($exp->expect(10, '-re', qr/disabled/i)) {
print "SSH ERR: Account is disabled .... please change and come back\n";
die "EXITING PROGRAM : SSH ERR: Account is disabled .... please change and come back\n";
} elsif ($exp->expect(10, '-re', qr/password/i)) {
print "SSH ERR: Incorrect password .... please change and come back\n";
die "EXITING PROGRAM : SSH ERR: Incorrect password .... please change and come back\n";
} else {
$exp->expect(10, '-re', qr'[$#>:] $') || die "ERR expecting shell\n";
}

$exp->log_stdout(1);  ########### Added on 27th Oct 2003
print "Authentication of user ($user3) Successful\n";
print "Executing command ($extra)\n";
print $exp "$extra\r";
$exp->expect(10, '-re', qr'[$#>:] $') || die "ERR expecting third command(2).\n";
$exp->log_stdout(0);  ########### Added on 27th Oct 2003
} else {
print "SSH ERR: Error Connecting host ($host3) using user ($user3)\n";
$alternateTelnet = "2";
}
}


if ($alternateTelnet == 2) {
$exp->expect(10, '-re', qr'[$#>:] $') || print "SSH ERR: No response through SSH for ($host3)\n";
print "Trying Telnet ($comm1$space$host3)\n";
print $exp "$comm1$space$host3\r";

if ($exp->expect(10, '-re', qr/unknown/i)) {
print "TELNET ERR: Unknown Host\n";
die "EXITING PROGRAM : TELNET ERR: Unknown Host\n";
}

if ($exp->expect(10, '-re', qr/((login\:)|(login\:\ ))/i)) {
print "Entering Login Info\n";
} else {
print "EXITING PROGRAM : ERR: Telnet Failed on ($host3)\n";
die "ERR: Telnet Failed on ($host3)\n";
}
print "Authenticating username ($user3) through telnet\n";
print $exp "$user3\r";
if ($exp->expect(10, '-re', qr/((Password\:)|(Password\:\ ))/i)) {
print "Entering User Info\n";
} else {
print "ERR: Error expecting password for ($user3)\n";
die "EXITING PROGRAM ERR: Error expecting password for ($user3)\n";
}
print "Authenticating password\n";
print $exp "$pwd3\r";

if ($exp->expect(15, '-re', qr/((^login\:)|(^login\:\ )|(password))/i)) {
print "TELNET ERR in authenticating user ($user3) ... incorrect user or password\n";
die "EXITING PROGRAM : TELNET ERR .... incorrect user or password\n";
} elsif ($exp->expect(15, '-re', qr/disabled/i)) {
print "TELNET ERR in authenticating user ($user3) ... account is disabled\n";
die "EXITING PROGRAM : TELNET ERR ... account is disabled\n";
} else {
$exp->expect(10, '-re', qr'[$#>:] $');
}

$exp->log_stdout(1);  ########### Added on 28th Oct 2003
print "Authentication of user ($user3) Successful\n";
print "Executing command ($extra)\n";
print $exp "$extra\r";
$exp->expect(10, '-re', qr'[$#>:] $') || die "ERR expecting third command(3).\n";
$exp->log_stdout(0);  ########### Added on 27th Oct 2003
}

return 0;

}

sub parseCmdLine {
     foreach $i (0...$#ARGV) {
    	if ( $ARGV[$i] =~ /(^\-(\w)$)/ ) {
        $flag = $1;
        $_ = $flag;
      	SWITCH: {
          /i/     and &usage, last SWITCH;
          /s/     and $host1 = $ARGV[$i+1], $last_processed += 2, last SWITCH;
          /d/     and $host2 = $ARGV[$i+1], $last_processed += 2, last SWITCH;
          /r/     and $host3 = $ARGV[$i+1], $last_processed += 2, last SWITCH;
          /u/     and $user1 = $ARGV[$i+1], $last_processed += 2, last SWITCH;
          /p/     and $pwd1 = $ARGV[$i+1], $last_processed += 2, last SWITCH;
          /n/     and $user2 = $ARGV[$i+1], $last_processed += 2, last SWITCH;
          /o/     and $pwd2 = $ARGV[$i+1], $last_processed += 2, last SWITCH;
          /l/     and $user3 = $ARGV[$i+1], $last_processed += 2, last SWITCH;
          /m/     and $pwd3 = $ARGV[$i+1], $last_processed += 2, last SWITCH;
  	    } 
    	} 
    }
} 

sub usage {
print <<ENDOFUSAGE;

Usage: enter_telnet_ssh_mayne_v1.pl [-i] [-s src hostname] [-u username] [-p password] [-d dest hostname] [-n username] [-o password]
[-r remote hostname] [-l username] [-m password]

-s		Hostname to connect
-u		Username for the first host
-p		Password of the first user
-d		Second Hostname to connect (this one is through ssh)
-n		Username for the second host
-o		Password of the second user
-r		Third Hostname to connect (this one is through ssh)
-l		Username for the third host
-m		Password of the third user
-i		It is what your seeing

ENDOFUSAGE
exit(0);
}