#!/usr/bin/perl -w
use strict;
# use diagnostics;
use POSIX qw/uname/;
use POSIX qw/strftime/;

my ($os, $hostname, undef)=POSIX::uname();
my ($host, undef)=split(/\./, $hostname);
my $OS = lc($os);
my ( $MODE, $USERNAME, $NEWPASS, $APACHECONF, @THINGS );
$MODE = $USERNAME = $NEWPASS = $APACHECONF = "UNDEFINED";

unless ( $ARGV[0] =~ m/-(p|a|d|ha|hd)/ )
{
    print "500 - DONE - $host - Missing or bad mode\n";
    exit;
}

if ( defined $ARGV[0] ) { $MODE     = $ARGV[0] }
if ( defined $ARGV[1] ) { $USERNAME = $ARGV[1] }
if ( defined $ARGV[2] ) { $NEWPASS  = $ARGV[2] }

#print "MODE = $MODE\nUSERNAME = $USERNAME\nNEWPASS = $NEWPASS\n";

# Format: MODE => ( COMMAND, ACTION TAKEN, CHECKMODES, ERRORS )
my %cmd=( "-p"  => { "COMMAND"    => { "linux" => "/usr/local/bin/setpass.expect $USERNAME $NEWPASS",
                                       "aix"   => "" },
                     "ACTION"     => "Password Changed",
                     "CHECKMODES" => &checkparms(),
                     "ERRORS"     => { "$OS:256"   => "$USERNAME Does not exist" } },

          "-d"  => { "COMMAND"    => { "linux" => "/usr/sbin/userdel -r $USERNAME",
                                       "aix"   => "" },
                     "ACTION"     => "Deleted",
                     "CHECKMODES" => &checkparms(),\
                     "ERRORS"     => { "$OS:1536" => "$USERNAME Does not exist" } },

          "-a"  => { "COMMAND"    => { "linux" => "/usr/sbin/useradd $USERNAME &&
                                                   /usr/local/bin/setpass.expect $USERNAME $NEWPASS",
                                       "aix"   => "" },
                     "ACTION"     => "Added",
                     "CHECKMODES" => &checkparms(),
                     "ERRORS"     => { "$OS:2304" => "$USERNAME exists" } },

          "-ha" => { "COMMAND"    => { "linux" => "/usr/bin/htpasswd -bd $APACHECONF $USERNAME $NEWPASS",
                                       "aix"   => "" },
                     "ACTION"     => "Added",
                     "CHECKMODES" => &checkparms() },

          "-hd" => { "COMMAND"    => { "linux" => "/usr/bin/htpasswd -D $APACHECONF $USERNAME",
                                       "aix"   => "" },
                     "ACTION"     => "Deleted",
                     "CHECKMODES" => &checkparms() } );

if ( $cmd{$MODE}{'CHECKMODES'} == 0 )
{
    #qx/$cmd{$MODE}{'COMMAND'}/;
    print "$cmd{$MODE}{'COMMAND'}{$OS}\n";
    check_error($?);
}
else
{
    print "500 - DONE - $host - @THINGS not defined";
}
exit;

###############
sub check_error
###############
{
    $_=shift;
    my $err="$OS:$_";
    my $msg = "$USERNAME $cmd{$MODE}{'ACTION'}";
    $msg = $cmd{$MODE}{'ERRORS'}{$err} if ( defined ($cmd{$MODE}{'ERRORS'}{$err}) );

    open (LOGFILE, ">>/var/log/usermaint_.log") or warn "Unable to open logfile\n";

    ( $_ == 0 ) ? print "200 - DONE - $host - Sucess ($_) - $msg\n"
                : print "500 - DONE - $host - Failure ($_) - $msg\n";

    my $now = strftime "%m/%d/%Y %H:%M:%S", (localtime);
    print LOGFILE "$now - $_ - $USERNAME - $msg\n";

    close (LOGFILE) or warn "Unable to close logfile\n";
    return 1;
}

##############
sub checkparms
##############
{
    push (@THINGS, "Username")   if ( $USERNAME eq "UNDEFINED" );
    push (@THINGS, "Password")   if ( $NEWPASS  eq "UNDEFINED" and
                                      $MODE eq "-a" or
                                      $MODE eq "-p" or
                                      $MODE eq "-ha");

    push (@THINGS, "httpd.conf") if ( $MODE eq "-ha"  or
                                      $MODE eq "-hd" and
                                      $APACHECONF eq "UNDEFINED" );

    my $return_val = ( scalar(@THINGS) == 0 ) ? return 0 : return 1;
}
__END__