Net::SMS - Sends wireless messages to any carrier including text messages and

    $sms->optContentType("ems");
    $sms->emsAddPredefinedSound(1);
    $sms->emsAddPredefinedAnimation(1);
    $sms->emsAddSmallPicture("example.gif");
    $sms->emsAddText("This is an EMS from Simplewire!");

    $sms->optContentType("ems");

    emsAddText()
    emsAddPredefinedSound()
    emsAddPredefinedAnimation()
    emsAddUserDefinedSound()
    emsAddSmallPicture()
    emsAddSmallPictureHex()
    emsAddLargePicture()
    emsAddLargePictureHex()
    emsAddUserPromptIndicator()

    # 16x16 image, black and white
    $sms->emsAddSmallPicture("example.gif");

    # 32x32 image, black and white
    $sms->emsAddLargePicture("large.gif");

	

    # I am laughing
    $sms->emsAddPredefinedAnimation(7);

    0 I am ironic, flirty
    1 I am glad
    2 I am sceptic
    3 I am sad
    4 WOW!
    5 I am crying
    6 I am winking
    7 I am laughing
    8 I am indifferent
    9 In love/ kissing
    10 I am confused
    11 Tongue hanging out
    12 I am angry
    13 Wearing glasses
    14 Devil

    # Play the Drums
    $sms->emsAddPredefinedSound(5);

    0 Chimes high
    1 Chimes low
    2 Ding
    3 Ta Da
    4 Notify
    5 Drum
    6 Claps
    7 Fan Fare
    8 Chords high
    9 Chords low

    # Play my sound
    $sms->emsAddUserDefinedSound("MELODY:*5c5*5e4*5c5*5e4*4e5*4g4*4e5");

    MELODY:*5f3r4*5f4*5c4r4*5f1r3*4#g3*4a2*5c3*4f2r3*4a4*5c4*5f3

    BEGIN:IMELODY
	VERSION:1.2
	FORMAT:CLASS1.0
	NAME:A-Team Theme Song
	MELODY:*5f3r4*5f4*5c4r4*5f1r3*4#g3*4a2*5c3*4f2r3*4a4*5c4*5f3
	END:IMELODY

    Desc:      “BEGIN:IMELODY”<cr><line-feed>
    Example:   “BEGIN:IMELODY”<cr><line-feed>
    Status:    Mandatory

    Desc:      “VERSION:”<version><cr><line-feed>
    Example:   “VERSION:1.2”<cr><line-feed> 
    Status:    Mandatory (We've found this to be optional)

    Desc:      “FORMAT:”<format><cr><linefeed>
    Example:   “FORMAT:CLASS1.0”<cr><line-feed> 
    Status:    Mandatory (We've found this to be optional)

    Desc:      “NAME:”<characters-notlf><cr><line-feed>
    Example:   “NAME:My song”<cr><line-feed> 
    Status:    Optional

    Desc:      “COMPOSER:”<characters-notlf><cr><line-feed>
    Example:   “COMPOSER:John Doe”<cr><line-feed> 
    Status:    Optional

    Desc:      “BEAT:”<beat><cr><line-feed> 
    Example:   “BEAT:240”<cr><line-feed> 
    Status:    Optional

    Desc:      “STYLE:”<style><cr><line-feed>
    Example:   “STYLE:S2”<cr><line-feed> 
    Status:    Optional

    Desc:      “VOLUME:”<volume><cr><linefeed>
    Example:   “VOLUME:V8”<cr><line-feed> 
    Status:    Optional

    <format> ::= “CLASS1.0”
    iMelody also defines a "CLASS2.0" format.

    <beat>::="25" | "26" | "27" | ... | "899" | "900"
    <style>::= "S0" | "S1" | "S2"
    <volume-modifier>::=”V+”|”V-“ (changes volume + or – from current volume)
    <volume>::="V0" | "V1" | ... | "V15" |<volume-modifier>
    <characters-not-lf> ::= ’Any character in the ASCII character-set except <line-feed>.’

    Desc:      “END:IMELODY”<cr><line-feed> 
    Example:   “END:IMELODY”<cr><line-feed> 
    Status:    Mandatory

    Desc:      “MELODY:”<melody><cr><linefeed>
    Example:   “MELODY:c2d2e2f2”<cr><line-feed> 
    Status:    Mandatory

    Value Duration
    0     Full-note
    1     ½-note
    2     ¼-note
    3     1/8-note
    4     1/16-note
    5     1/32-note

    Value Duration
          No special duration
    .     Dotted note
    :     Double dotted note
    ;     2/3 length

    Mandatory Header       BEGIN:IMELODY
                           VERSION:1.2
                           FORMAT:CLASS1.0
    Mandatory Melody       MELODY:&b2#c3V–c2*4g3d3V+#d1r3d2e2:d1V+f2f3.
    Mandotory Footer       END:IMELODY

    # Concatenate three SMS messages to make one
    # Each SMS can contain 140 bytes, and we've
    # added enough content to take up 320 bytes
    # 140 bytes - 1st message
    # 140 bytes - 2nd message
    # 40 bytes  - 3rd message
    $sms->emsAddUserPromptIndicator(3);

################################################################################
# Copyright (c) 2001-2004 Simplewire. All rights reserved. 
#
# Net::SMS.pm, version 2.63
# 
#
# Simplewire, Inc. grants to Licensee, a non-exclusive, non-transferable,
# royalty-free and limited license to use Licensed Software internally for
# the purposes of evaluation only. No license is granted to Licensee
# for any other purpose. Licensee may not sell, rent, loan or otherwise
# encumber or transfer Licensed Software in whole or in part,
# to any third party.
#
# For more information on this license, please view the License.txt file
# included with your download or visit www.simplewire.com
#
################################################################################

#---------------------------------------------------------------------
# User documentation within and more is in POD format is at end of
# this file.  Search for =head
#---------------------------------------------------------------------

package Net::SMS;
require 5.002;

#---------------------------------------------------------------------
# Other module use
#---------------------------------------------------------------------
use strict;
use Unicode::String qw(utf8 latin1 utf16);
use Exporter;
use XML::Parser;
use LWP::UserAgent;
use HTTP::Request;
use HTTP::Response;

# for exporting
our(@ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS, $VERSION);

@ISA = qw(Exporter);

# symbols to export by default
@EXPORT = qw();			

# symbols to export on request
@EXPORT_OK = qw();

# tagged sets of symbols
%EXPORT_TAGS = (content => [qw(CONTENT_TYPE_TEXT CONTENT_TYPE_RINGTONE CONTENT_TYPE_ICON CONTENT_TYPE_LOGO CONTENT_TYPE_PICTURE CONTENT_TYPE_PROFILE CONTENT_TYPE_SETTING CONTENT_TYPE_EMS CONTENT_TYPE_WAPPUSH)], 
				encoding => [qw(ENC_7BIT ENC_8BIT ENC_UCS2)],
				proxy => [qw(PROXY_TYPE_NONE PROXY_TYPE_HTTP)] );

# add to @EXPORT
Exporter::export_tags('content');

# add to @EXPORT_OK
Exporter::export_ok_tags('encoding', 'proxy');

######################################################################
# Constants
###################################################################### 

# ONLY NEED TO CHANGE VERSION NUMBER HERE....
$VERSION = '2.64';

# for constant values <=> string values
our (@CONTENT_TYPE, @ENC, @PROXY_TYPE);

sub CONTENT_TYPE_TEXT 		() { "text" }
sub CONTENT_TYPE_DATA 		() { "data" }
sub CONTENT_TYPE_RINGTONE 	() { "ringtone" }
sub CONTENT_TYPE_ICON 		() { "icon" }
sub CONTENT_TYPE_LOGO 		() { "logo" }
sub CONTENT_TYPE_PICTURE 	() { "picture" }
sub CONTENT_TYPE_PROFILE 	() { "profile" }
sub CONTENT_TYPE_SETTING 	() { "setting" }
sub CONTENT_TYPE_EMS 		() { "ems" }
sub CONTENT_TYPE_WAP_PUSH 	() { "wap_push" }

# content type constants
@CONTENT_TYPE = (undef, "text", "data", "ringtone", "icon", "logo", "picture", "profile", "setting", "ems", "wap_push");

sub ENC_7BIT () { "7bit" }
sub ENC_8BIT () { "8bit" }
sub ENC_UCS2 () { "ucs2" }

# encoding constants
@ENC = (undef, "7bit", "8bit", "ucs2");

sub PROXY_TYPE_NONE () { "none" }
sub PROXY_TYPE_HTTP () { "http" }

# proxy constants
@PROXY_TYPE = (undef, "none", "http");

######################################################################
# Net::SMS->new();
#
######################################################################

# validates an option is in an array
# arg1 is the variable to look for
# arg2 is a reference to an array to search
# returns 1 if found, 0 if not found
sub _validate_constant {
	# first argument is constant
	my $var = shift();
	# second argument is reference to array
	my @opts = @{ shift() };

	my $success = 0;
	foreach my $opt (@opts) {
		# return true
		return 1 if ($var eq $opt);
	}
	
	# return false
	return 0;
}

# validates a boolean value
sub _validate_bool {
	# first argument is variable
	my $var = shift();
	# test the truth value, defaulting to false
	if ($var eq "true" || $var eq 1) {
		return 1;
	}
	return 0;
}

# tests whether SSL is available
sub _is_ssl_avail {
	my $http = LWP::UserAgent->new();
	return $http->is_protocol_supported('https');
}

# prints out xml value of a bool
sub _return_bool {
	my $var = shift();
	if ($var) {
		return "true";
	}
	return "false";
}

sub new {
    my $that  = shift;
    my $class = ref($that) || $that;
    local $_;
    my %args;
	#-----------------------------------------------------------------
	# Define default package vars
	#-----------------------------------------------------------------
	# Placeholder
	my $self = {NOTHING		=> 'nothing'};

    bless($self, $class);
	$self->reset();
    return $self;
}


sub reset {

	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    #-----------------------------------------------------------------
	# Define default package vars
    #-----------------------------------------------------------------
	$self->{DEBUG}					= 0;
	
	$self->{m_SoftwareVendor}		= "Simplewire, Inc.";
	$self->{m_SoftwareWebsite}		= "www.simplewire.com";
	$self->{m_SoftwareTitle}		= "Perl SMS Software Development Kit";
	$self->{m_SoftwareVersion}		= substr($VERSION, 0, length($VERSION)-1) . "." . chop($VERSION);
	
	$self->{m_CarrierList}			= [];
	
	$self->{m_ClientStatusCode}		= -1;
	$self->{m_ClientStatusDesc}		= '';
	
	$self->{m_ErrorCode}			= 0;
	$self->{m_ErrorDescription}		= undef;
    $self->{m_ErrorResolution}		= undef;
    
    $self->{m_StatusCode}			= undef;
	$self->{m_StatusDescription}	= undef;
	
	$self->{m_NetworkId}			= undef;
	$self->{m_DestAddr}				= undef;
	$self->{m_SourceAddr}			= undef;

	$self->{m_TicketId}				= undef;
	$self->{m_TicketFee}			= undef;

	$self->{m_MsgFrom}				= undef;
	$self->{m_MsgImage}				= undef;
	$self->{m_MsgImageFilename}		= undef;
	$self->{m_MsgRingtone}			= undef;
	$self->{m_MsgData}				= undef;
	
	$self->{m_OptCountryCode}		= undef;
	$self->{m_OptEncoding}			= undef;
	$self->{m_OptFlash}				= undef;
	$self->{m_OptNetworkCode}		= undef;
	$self->{m_OptPhone}				= undef;
	$self->{m_OptType}				= undef;
	$self->{m_OptUrl}				= undef;
	
	$self->{m_Udh}					= undef;
	$self->{m_OptUdhi}				= 0;
		
	$self->{m_Protocol}				= 'paging';
	$self->{m_Type}					= undef;
	$self->{m_Version}				= '2.0';
	
	$self->{m_RequestXML}			= undef;
	$self->{m_ResponseXML}			= undef;
	
	$self->{m_ProxyType}			= undef;
	$self->{m_ProxyPassword}		= undef;
	$self->{m_ProxyPort}			= 0;
	$self->{m_ProxyHost}			= undef;
	$self->{m_ProxyUsername}		= undef;
	
	$self->{m_Secure}				= 0;
	$self->{m_ConnectionTimeout}	= 30;
	$self->{m_RemoteFile}			= '/wmp';
	$self->{m_RemoteHost}			= 'wmp.simplewire.com';
	$self->{m_RemotePort}			= 0;
	
	$self->{m_AccountId}			= undef;
	$self->{m_AccountPassword}		= undef;
	$self->{m_AccountBalance}		= undef;
	
	$self->{m_UserAgent}			= 'Perl/SMS/' . $self->{m_SoftwareVersion};
	
	# added for EMS
	$self->{m_OptContentType}		= '';
    $self->{m_EmsElements}			= [];
	
}


sub account {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    $self->send('account');
    # return success/failure
    return $self->success();
}


sub accountBalance {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_AccountBalance} = shift(); }

    return $self->{m_AccountBalance} if defined($self->{m_AccountBalance}) || return undef;
}


# new in 2.60
sub secure {
	# pop value
	my $self = shift();
		
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

	if (@_ == 1) {
		$self->{m_Secure} = _validate_bool(shift());
		# check whether this was set to true
		if ($self->{m_Secure} && !_is_ssl_avail()) {
			die "SSL is not available for secure messaging";
		}
		
	}
	
    return $self->{m_Secure} if defined($self->{m_Secure}) || return undef;
}



sub carrierList {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    return @{ $self->{m_CarrierList} };
}


sub list {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    $self->send('list');
    # return success/failure
    return $self->success();
}

# DEPRECATED TO list()
sub carrierListSend {
	list(@_);
}


sub connectionTimeout {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_ConnectionTimeout} = shift(); }

    return $self->{m_ConnectionTimeout} if defined($self->{m_ConnectionTimeout}) || return undef;
}


sub debug {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{DEBUG} = shift(); }

    return $self->{DEBUG} if defined($self->{DEBUG}) || return undef;

}

# DEPRECATED TO debug()
sub debugMode {
	debug(@_);
}


sub errorCode {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_ErrorCode} = shift(); }

    return $self->{m_ErrorCode} if defined($self->{m_ErrorCode}) || return undef;
}

sub errorDescription {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_ErrorDescription} = shift(); }

    return $self->{m_ErrorDescription} if defined($self->{m_ErrorDescription}) || return undef;
}


# DEPRECATED TO errorDescription
sub errorDesc {
	errorDescription(@_);
}


sub errorResolution {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_ErrorResolution} = shift(); }

    return $self->{m_ErrorResolution} if defined($self->{m_ErrorResolution}) || return undef;
}


sub isAccount {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    return 1 if ($self->{m_Type} eq "account");
    return 0;
}


sub isList {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    return 1 if ($self->{m_Type} eq "list");
    return 0;
}


# DEPRECATED TO isList()
sub isCarrierlist {
	isList(@_);
}


sub isSubmit {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    return 1 if ($self->{m_Type} eq "submit");
    return 0;
}

# DEPRECATED TO isSubmit()
sub isMsg {
	isSubmit(@_);
}

sub isNotify {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    return 1 if ($self->{m_Type} eq "notify");
    return 0;
}

sub isDeliver {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    return 1 if ($self->{m_Type} eq "deliver" || $self->{m_Type} eq "sendpage");
    return 0;
}

sub isQuery {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    return 1 if ($self->{m_Type} eq "query");
    return 0;
}

# DEPRECATED TO isQuery()
sub isMsgStatus {
	isQuery(@_);
}


sub sourceAddr {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

	# if parameter list has length == 1, then pop value and set call back.
    if (@_ == 1) { $self->{m_SourceAddr} = shift(); }

    return $self->{m_SourceAddr} if defined($self->{m_SourceAddr}) || return undef;
}

# DEPRECATED TO sourceAddr
sub msgCallback {
	sourceAddr(@_);
}


sub networkId {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{NetworkId} = shift(); }

    return $self->{NetworkId} if defined($self->{NetworkId}) || return undef;
}

# DEPRECATED TO networkId
sub msgCarrierID {
	networkId(@_);
}


sub msgCLIIconFilename {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) {
		my $file_path = shift();
		my $hexResult = '';
		my $buf;
		my $fh;

		open($fh, "< $file_path") || die "Can't open file \"$file_path\"";
		binmode $fh;

		while(read $fh, $buf, 1) {
			$hexResult .= sprintf( "%2.2lX",  ord($buf) );
		}

		close($fh);

		$self->{m_MsgImageFilename} = $file_path;
		$self->{m_MsgImage}	= $hexResult;
		$self->optContentType('icon');
		#$self->{m_OptType}	=	'icon';
	}
    return $self->{m_MsgImageFilename} if defined($self->{m_MsgImageFilename}) || return undef;
}


sub msgCLIIconHex {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1)
	{
		my $hexResult = shift();
		$self->{m_MsgImage}	= $hexResult;
		$self->optContentType('icon');
		#$self->{m_OptType}	=	'icon';
	}

    return $self->{m_MsgImage} if defined($self->{m_MsgImage}) || return undef;
}


sub msgFrom {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_MsgFrom} = shift(); }

    return $self->{m_MsgFrom} if defined($self->{m_MsgFrom}) || return undef;
}


sub msgOperatorLogoFilename {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));
	
    if (@_ == 1)
	{
		my $file_path = shift();
		my $hexResult = '';
		my $buf;
		my $fh;

		open($fh, "< $file_path") || die "Can't open file \"$file_path\"";
		binmode $fh;

		while(read $fh, $buf, 1)
		{
			$hexResult .= sprintf( "%2.2lX",  ord($buf) );
		}

		close($fh);

		$self->{m_MsgImageFilename} = $file_path;
		$self->{m_MsgImage}	= $hexResult;
		$self->optContentType('logo');
		#$self->{m_OptType}	=	'logo';
	}

    return $self->{m_MsgImageFilename} if defined($self->{m_MsgImageFilename}) || return undef;
}


sub msgOperatorLogoHex {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) {
		my $hexResult = shift();
		$self->{m_MsgImage}	= $hexResult;
		$self->optContentType('logo');
		#$self->{m_OptType}	=	'logo';
	}

    return $self->{m_MsgImage} if defined($self->{m_MsgImage}) || return undef;
}


sub msgPictureFilename {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) {
		my $file_path = shift();
		my $hexResult = '';
		my $buf;
		my $fh;

		open($fh, "< $file_path") || die "Can't open file \"$file_path\"";
		binmode $fh;

		while (read $fh, $buf, 1) {
			$hexResult .= sprintf( "%2.2lX",  ord($buf) );
		}

		close($fh);

		$self->{m_MsgImageFilename} = $file_path;
		$self->{m_MsgImage}	= $hexResult;
		$self->optContentType(CONTENT_TYPE_PICTURE);
		#$self->{m_OptType}	=	'picture';
	}

    return $self->{m_MsgImageFilename} if defined($self->{m_MsgImageFilename}) || return undef;
}


sub msgPictureHex {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) {
		my $hexResult = shift();
		$self->{m_MsgImage}	= $hexResult;
		$self->optContentType(CONTENT_TYPE_PICTURE);
		#$self->{m_OptType}	=	'picture';
	}

    return $self->{m_MsgImage} if defined($self->{m_MsgImage}) || return undef;
}


sub destAddr {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_DestAddr} = shift(); }

    return $self->{m_DestAddr} if defined($self->{m_DestAddr}) || return undef;
}

# DEPRECATED TO destAddr()
sub msgPin {
	destAddr(@_);
}


sub msgProfileName {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) {
		$self->msgText(shift());
		$self->optContentType(CONTENT_TYPE_PROFILE);
		#$self->{m_OptType} = 'profile';
	}

	return $self->msgText();	
}


sub msgProfileRingtone {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) {
		$self->{m_MsgRingtone} = shift();
		$self->optContentType(CONTENT_TYPE_PROFILE);
		#$self->{m_OptType}	=	'profile';
	}

    return $self->{m_MsgRingtone} if defined($self->{m_MsgRingtone}) || return undef;
}


sub msgProfileScreenSaverFilename {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) {
		my $file_path = shift();
		my $hexResult = '';
		my $buf;
		my $fh;

		open($fh, "< $file_path") || die "Can't open file \"$file_path\"";
		binmode $fh;

		while (read $fh, $buf, 1) {
			$hexResult .= sprintf( "%2.2lX",  ord($buf) );
		}

		close($fh);

		$self->{m_MsgImageFilename} = $file_path;
		$self->{m_MsgImage}	= $hexResult;
		$self->optContentType(CONTENT_TYPE_PROFILE);
		#$self->{m_OptType}	=	'profile';
	}

    return $self->{m_MsgImageFilename} if defined($self->{m_MsgImageFilename}) || return undef;
}


sub msgProfileScreenSaverHex {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1)
	{
		my $hexResult = shift();
		$self->{m_MsgImage}	= $hexResult;
		$self->optContentType(CONTENT_TYPE_PROFILE);
		#$self->{m_OptType}	=	'profile';
	}
    return $self->{m_MsgImage} if defined($self->{m_MsgImage}) || return undef;
}


sub msgRingtone {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) {
		$self->{m_MsgRingtone} = shift();
		$self->optContentType(CONTENT_TYPE_RINGTONE);
		#$self->{m_OptType}	=	'ringtone';
	}
    return $self->{m_MsgRingtone} if defined($self->{m_MsgRingtone}) || return undef;
}


sub submit {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    $self->send('submit');
    # return success/failure
    return $self->success();
}

# DEPRECATED TO submit();
sub msgSend {
	submit(@_);
}


# DEPRECATED, DON'T USE ANYMORE
sub msgSendEx {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    $self->networkId(shift());
    $self->destAddr(shift());
    $self->msgFrom(shift());
    $self->sourceAddr(shift());
    $self->msgText(shift());

    return $self->submit();
}

sub statusCode {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_StatusCode} = shift(); }

    return $self->{m_StatusCode} if defined($self->{m_StatusCode}) || return undef;
}


# DEPRECATED TO statusCode()
sub msgStatusCode {
	statusCode(@_);
}


sub statusDescription {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_StatusDescription} = shift(); }

    return $self->{m_StatusDescription} if defined($self->{m_StatusDescription}) || return undef;
}


# DEPRECATED TO statusDescription
sub msgStatusDesc {
	statusDescription(@_);
}


sub query {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    $self->send('query');
    # return success/failure
    return $self->success();
}


# DEPRECATED TO query()
sub msgStatusSend {
	query(@_);
}


sub msgData {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_MsgData} = shift(); }

	return $self->{m_MsgData} if defined($self->{m_MsgData}) || return undef;	
}


# DEPRECATED TO msgData
sub msgText {
	msgData(@_);
}


sub ticketId {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_TicketId} = shift(); }

    return $self->{m_TicketId} if defined($self->{m_TicketId}) || return undef;
}


# DEPRECATED TO ticketId
sub msgTicketID {
	ticketId(@_);
}


sub ticketFee {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_TicketFee} = shift(); }

    return $self->{m_TicketFee} if defined($self->{m_TicketFee}) || return undef;
}


sub optCountryCode {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_OptCountryCode} = shift(); }

    return $self->{m_OptCountryCode} if defined($self->{m_OptCountryCode}) || return undef;
}


sub optEncoding {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) {
    	# we're being set
    	my $var = shift;
		# validate the argument
		my $success = _validate_constant($var, \@ENC);

		if ($success == 1) {
		   $self->{m_OptEncoding} = $var;
		} else {
		   die "You must set optEncoding to one of the following: " . join(", ", @ENC) . "\n";
		}
    }
    
    # we are being read
    return $self->{m_OptEncoding} if defined($self->{m_OptEncoding}) || return undef;
}

# DEPRECATED TO optEncoding
sub optDataCoding {
	optEncoding(@_);
}


# DEPRECATED
sub optDelimiter {
	# do nothing
}


# DEPRECATED
sub optFields {
	# do nothing
}


sub optFlash {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_OptFlash} = _validate_bool(shift()); }

    return $self->{m_OptFlash} if defined($self->{m_OptFlash}) || return undef;
}


sub optNetworkCode {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_OptNetworkCode} = shift(); }

    return $self->{m_OptNetworkCode} if defined($self->{m_OptNetworkCode}) || return undef;
}


sub optPhone {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_OptPhone} = shift(); }

    return $self->{m_OptPhone} if defined($self->{m_OptPhone}) || return undef;
}


# DEPRECATED
sub optTimeout {
	# do nothing
}


# DEPRECATED to optContentType
sub optType {
	optContentType(@_);
}


sub optUrl {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_OptUrl} = shift(); }

    return $self->{m_OptUrl} if defined($self->{m_OptUrl}) || return undef;
}


sub optUdhi {
	# pop value
	my $self = shift();

	# check to make sure that this function is being called on an object
	die "You must instantiate an object to use this function" if !(ref($self));

	if (@_ == 1) { $self->{m_OptUdhi} = _validate_bool(shift());}
	
    return $self->{m_OptUdhi} if defined($self->{m_OptUdhi}) || return undef;
}


# sets/gets the User Data Header as raw byte string
sub udh {
	# pop value
	my $self = shift();

	# check to make sure that this function is being called on an object
	die "You must instantiate an object to use this function" if !(ref($self));

	if (@_ == 1) { $self->{m_Udh} = shift(); }
	
    return $self->{m_Udh} if defined($self->{m_Udh}) || return undef;
}


############################################
# EMS Functionality
# Must set optContentType = "ems" for EMS to work
# emsAddText()
# emsAddPredefinedSound()
# emsAddPredefinedAnimation()
# emsAddUserDefinedSound()
# emsAddSmallPicture()
# emsAddSmallPictureHex()
# emsAddLargePicture()
# emsAddLargePictureHex()
# emsAddUserPromptIndicator()
############################################

sub optContentType {
	# this function deprecates the optType function and requires
	# a list of constants. So check for 'em
	
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) {
	   # we're being set
	   my $var = shift;
	   # validate the argument
	   my $success = _validate_constant($var, \@CONTENT_TYPE);
	   
	   if ($success == 1) {
	       # set both vars so we don't break anything
		   # eventually optType should be phased out
		   $self->{m_OptContentType} = $var;
	   } else {
	       die "You must set optContentType to one of the following: " . join(", ", @CONTENT_TYPE) . "\n";
	   }
	}

	# we're being read
    return $self->{m_OptContentType} if defined($self->{m_OptContentType}) || return undef;
}

sub priv_emsAddElement {
    # Private function that appends to the
	# $self->{m_EmsElements} array
    # 
	# INPUT: name, type, value
	# OUTPUT: sizeof array after push()
	
	# pop value
    my $self = shift();
	
	# build hash
	my $ems = {};
	$ems->{"name"} = shift;
	$ems->{"type"} = shift;
	$ems->{"value"} = shift;
    
	#print "name:" . $ems->{"name"} . "\n";
	#print "type:" . $ems->{"type"} . "\n";
	#print "val: " . $ems->{"value"} . "\n";
	
	#print "size of elements before push:" . $#{$self->{m_EmsElements}} . "\n";
	
	push @{ $self->{m_EmsElements} }, $ems;
	
	#print "size of elements after push:" . $#{$self->{m_EmsElements}} . "\n";

	#my $arr = pop @{$self->{m_EmsElements}};
	#print $arr->{"name"} . "\n";
	#print $arr->{"type"} . "\n";
	#print $arr->{"value"} . "\n";
	
	#print "size of elements after pop:" . $#{$self->{m_EmsElements}} . "\n";
	return $#{$self->{m_EmsElements}} + 1;
	
}

sub emsAddText {

	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

	# append content to m_EmsElements with helper function
	$self->priv_emsAddElement("text", "", shift);
	
}

sub emsAddPredefinedSound {

    # EMS Predefined Sound
	# 0 Chimes high
	# 1 Chimes low
	# 2 Ding
	# 3 Ta Da
	# 4 Notify
	# 5 Drum
	# 6 Claps
	# 7 Fan Fare
	# 8 Chords high
	# 9 Chords low
	
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

	# check vals
	my $val = shift;
	if ($val >= 0 && $val < 10) {
    	
		# append content to m_EmsElements with helper function
	    $self->priv_emsAddElement("sound", "predefined", $val);
	
	} else {
	  
	    die "You must use a Predefined Sound between 0 and 9. Please see the perldoc.";
	
	}
}

sub emsAddPredefinedAnimation {

    # EMS Predefined anim
    # 0 I am ironic, flirty
    # 1 I am glad
    # 2 I am sceptic
    # 3 I am sad
    # 4 WOW!
    # 5 I am crying
    # 6 I am winking
    # 7 I am laughing
    # 8 I am indifferent
    # 9 In love/ kissing
    # 10 I am confused
    # 11 Tongue hanging out
    # 12 I am angry
    # 13 Wearing glasses
    # 14 Devil

	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

	# check vals
	my $val = shift;
	if ($val >= 0 && $val < 15) {
    	
		# append content to m_EmsElements with helper function
	    $self->priv_emsAddElement("animation", "predefined", $val);
	
	} else {
	  
	    die "You must use a Predefined Animation between 0 and 14. Please see the perldoc.";
	
	}
}

sub emsAddUserDefinedSound {

    # EMS User Defined Sound
	# User defined sounds are sent over the air interface. They are monophonic only,
    # use the iMelody format, and have a maximum length of 128 Bytes (without the
    # use of the UPI (use the word "join" to concatenate lengthy messages)
	
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));
	
	# append content to m_EmsElements with helper function
	$self->priv_emsAddElement("sound", "user", shift);

}

sub emsAddSmallPicture {

	# EMS Small pictures are 16x16 pixels, Black and white
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    # read in image data
    my $file_path = shift();
    my $hexResult = '';
    my $buf;
    my $fh;

    open($fh, "< $file_path") || die "Can't open file \"$file_path\"";
    binmode $fh;

    while(read $fh, $buf, 1)
    {
        $hexResult .= sprintf( "%2.2lX",  ord($buf) );
    }

    close($fh);

	# append content to m_EmsElements with helper function
	$self->priv_emsAddElement("picture", "small", $hexResult);

}

sub emsAddSmallPictureHex {

	# EMS Small pictures are 16x16 pixels, Black and white
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

	# append content to m_EmsElements with helper function
	$self->priv_emsAddElement("picture", "small", shift);

}

sub emsAddLargePicture {

	# EMS Large pictures are 32x32 pixels or of variable size
	# maximum 128 bytes, where width is a multiple of 8 pixels, Black and white
	# Larger pictures may be sent, but the word "join" must be placed
	# in the UPI (user prompt indicator)

	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    # read in image data
    my $file_path = shift();
    my $hexResult = '';
    my $buf;
    my $fh;

    open($fh, "< $file_path") || die "Can't open file \"$file_path\"";
    binmode $fh;

    while(read $fh, $buf, 1)
    {
        $hexResult .= sprintf( "%2.2lX",  ord($buf) );
    }

    close($fh);

	# append content to m_EmsElements with helper function
	$self->priv_emsAddElement("picture", "large", $hexResult);
}

sub emsAddLargePictureHex {

	# EMS Large pictures are 32x32 pixels or of variable size
	# maximum 128 bytes, where width is a multiple of 8 pixels, Black and white
	# Larger pictures may be sent, but the word "join" must be placed
	# in the UPI (user prompt indicator)
	
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

	# append content to m_EmsElements with helper function
	$self->priv_emsAddElement("picture", "large", shift);

}

sub emsAddUserPromptIndicator {

    # EMS User Prompt Indicator
	# This feature introduced in 3GPP TS 23.040 Release 4 allows handsets to stitch
	# pictures and user-defined sounds. It also allows the user to be prompted upon
	# reception of the message to execute media specific actions (storage, handset
	# personalisation, etc.). UPI is typically used by content providers when they send
	# content to users. Please refer to tables in chapter 4 for more information about
	# which products support this feature.
	
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

	# append content to m_EmsElements with helper function
	$self->priv_emsAddElement("upi", "", shift);

}

############################################
# End EMS Functionality
############################################


sub requestXML {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_RequestXML} = shift(); }

    return $self->{m_RequestXML} if defined($self->{m_RequestXML}) || return undef;
}


sub responseXML {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_ResponseXML} = shift(); }

    return $self->{m_ResponseXML} if defined($self->{m_ResponseXML}) || return undef;
}


sub remoteHost {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_RemoteHost} = shift(); }

    return $self->{m_RemoteHost} if defined($self->{m_RemoteHost}) || return undef;
}


sub remotePort {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_RemotePort} = shift(); }

    return $self->{m_RemotePort} if defined($self->{m_RemotePort}) || return undef;
}


# DEPRECATED, BUT JUST MAPS TO REMOTE PORT
sub serverPort {
	remotePort(@_);
}


# DEPRECATED IN 2.6.0, SEE REMOTE HOST
sub serverDomain {
	# do nothing
}


# DEPRECATED IN 2.6.0, SEE REMOTE HOST
sub serverName {
	# do nothing
}


sub accountId {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    my $var = shift();

    if (defined($var)) { $self->{m_AccountId} = $var; }

    return $self->{m_AccountId} if defined($self->{m_AccountId}) || return undef;
}

# DEPRECATED TO accountId()
sub subscriberID {
	accountId(@_);
}


sub accountPassword {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    my $var = shift();

    if (defined($var)) { $self->{m_AccountPassword} = $var; }
	
    return $self->{m_AccountPassword} if defined($self->{m_AccountPassword}) || return undef;
}

# DEPRECATED TO accountPassword()
sub subscriberPassword {
	accountPassword(@_);
}


sub success {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    # if the error_code is between 0 and 10 then its an okay response.
    if ($self->errorCode >= 0 and $self->errorCode <= 10 and $self->errorCode ne "") {
        return 1;
    }
    
    return 0;
}


# DEPRECATED Does nothing. Here for backward compatibility.
sub synchronous {
	# do nothing
}

# DEPRECATED - DON'T USE
sub userIP {
	# do nothing
}

# READ-ONLY
sub userAgent {
	# pop value
    my $self = shift();
    
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    return $self->{m_UserAgent};
}

sub	proxyType {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

	if (@_ == 1) {
		# we're being set
		my $var = shift;
		# validate the argument
		my $success = _validate_constant($var, \@PROXY_TYPE);

		if ($success == 1) {
		   $self->{m_ProxyType} = $var;
		} else {
		   die "You must set proxyType to one of the following: " . join(", ", @PROXY_TYPE) . "\n";
		}
    }

    return $self->{m_ProxyType} if defined($self->{m_ProxyType}) || return undef;
}


sub	proxyHost {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_ProxyServer} = shift(); }

    return $self->{m_ProxyServer} if defined($self->{m_ProxyServer}) || return undef;
}


# DEPRECATED TO proxyHost
sub	proxyServer {
	proxyHost(@_);
}


sub	proxyPort {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_ProxyPort} = shift(); }

    return $self->{m_ProxyPort} if defined($self->{m_ProxyPort}) || return undef;
}


sub	proxyUsername {
	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_ProxyUsername} = shift(); }

    return $self->{m_ProxyUsername} if defined($self->{m_ProxyUsername}) || return undef;
}

# DEPRECATED - SPELLED WRONG
sub proxyUserName {
	proxyUsername(@_);	
}


sub	proxyPassword {
	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ == 1) { $self->{m_ProxyPassword} = shift(); }

    return $self->{m_ProxyPassword} if defined($self->{m_ProxyPassword}) || return undef;
}


sub toXML {

	# pop value
    my $self = shift();

	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    #-----------------------------------------------------------------
    # Common heading for all requests
    #-----------------------------------------------------------------

	my $t = $self->{m_Type};
	if ($t eq "submit") {
		$t = "sendpage";
	} elsif ($t eq "query") {
		$t = "checkstatus";
	} elsif ($t eq "list") {
		$t = "carrierlist";
	}

    my $xml =<<ENDXML;
<?xml version="1.0" ?>
<request version="$self->{m_Version}" protocol="$self->{m_Protocol}" type="$t">
    <user agent="$self->{m_UserAgent}"/>
    <subscriber id="$self->{m_AccountId}" password="$self->{m_AccountPassword}"/>
ENDXML

    #-----------------------------------------------------------------
    # If submit
    #-----------------------------------------------------------------
    if ($self->isSubmit) {
    	#
		# add <option> attributes
		#
		$xml .= "    <option";

		if (defined($self->optCountryCode)) {
			$xml .= ' countrycode="' . $self->optCountryCode . '"';
		}

		if (defined($self->optEncoding)) {
			$xml .= ' datacoding="' . $self->optEncoding . '"';
		}

		if (defined($self->optFlash)) {
			$xml .= ' flash="' . _return_bool($self->optFlash) . '"';
		}

		if (defined($self->optNetworkCode)) {
			$xml .= ' networkcode="' . $self->optNetworkCode . '"';
		}

		if (defined($self->optPhone)) {
			$xml .= ' phone="' . $self->optPhone . '"';
		}

		if (defined($self->optContentType)) {
			$xml .= ' type="' . $self->optContentType . '"';
		}

		if (defined($self->optUrl)) {
			$xml .= ' url="' . $self->optUrl . '"';
		}

		$xml .= "/>\n";

        #
        # add <dest> attributes
        #
        #$xml .= "    <dest";
		
		#if (defined($self->networkId)) {
		#	$xml .= ' serviceid="' . $self->networkId . '"';
		#}
		
		#if (defined($self->destAddr)) {
		#	$xml .= ' pin="' . $self->destAddr . '"';
		#}
		
		#$xml .= "/>\n";
		
		#
		# add <source> attributes
		#
		#$xml .= "    <source";

		#if (defined($self->sourceAddr)) {
		#	$xml .= ' addr="' . $self->sourceAddr . '"';
		#}

		#$xml .= "/>\n";
		
        #
        # add <message> attributes
        #
		$xml .= "    <page";

		if (defined($self->networkId)) {
			$xml .= ' serviceid="' . $self->networkId . '"';
		}

		if (defined($self->destAddr)) {
			$xml .= ' pin="' . $self->destAddr . '"';
		}
		
		if (defined($self->sourceAddr)) {
			$xml .= ' callback="' . $self->sourceAddr . '"';
		}

		if (defined($self->msgFrom)) {
			$xml .= ' from="' . unicode_encode($self->msgFrom) . '"';
		}

		if (defined($self->msgText)) {
			$xml .= ' text="' . unicode_encode($self->msgText) . '"';
		}

		if (defined($self->msgRingtone)) {
			$xml .= ' ringtone="' . html_encode( $self->msgRingtone) . '"';
		}

		if (defined($self->{m_MsgImage})) {
			$xml .= ' image="' . $self->{m_MsgImage} . '"';
		}

		$xml .= ">\n";

		# EMS FUNCTIONALITY
		# Check to see if EMS was added and place it here
		#print "checking to see if we have ems...\n";

		if (defined($self->{m_EmsElements}) && $#{$self->{m_EmsElements}} >= 0) {

		   #print "We have EMS\n";

		   # start ems element
		   $xml .= "\t<ems>\n";

		   # add all ems elements
		   my @arr = @{ $self->{m_EmsElements} };
		   foreach my $item (@arr) {

			   #print $item->{name} . "\n";
			   $xml .= "<" . $item->{name};

			   # if type exists, then add it
			   if ($item->{type} ne "") {
				  $xml .= " type=\"" . $self->html_encode($item->{type}) . "\"";
			   }

			   # if value exists, then add it
			   if ($item->{value} ne "") {
				  $xml .= " value=\"";

				  # if type is text, unicode escape
				  if ($item->{name} eq "text") {
					 $xml .= $self->unicode_encode($item->{value});   				  
				  } elsif ($item->{name} eq "sound") {
					 # sounds need to only have newlines escaped
					 my $tmp = $item->{value};
					 $tmp =~ s/\n/&#10;/g;
					 $tmp =~ s/\r\n/&#10;/g;
					 $xml .= $tmp;
					 #$xml .= $self->unicode_encode($item->{value});						 
				  } else {
					 $xml .= $self->html_encode($item->{value});
				  }
				  $xml .= "\"";
			   }

			   # end element
			   $xml .= "/>\n";

		   } # foreach loop

		   # end ems tag
		   $xml .= "\t</ems>\n";

		}
		# End EMS

		$xml .= "    </page>\n";

    #-----------------------------------------------------------------
	# If query()
    #-----------------------------------------------------------------
    } elsif ($self->isQuery) {

		# Check to see if any options were set for the sendpage
    	if (defined($self->ticketId)) {
    		$xml .= "    <ticket";
			# set the ticket id
			if (defined($self->ticketId)) {
                $xml .= ' id="' . $self->ticketId . '"';
            }
			$xml .= "/>\n";
        }

	#-----------------------------------------------------------------
	# If list
    #-----------------------------------------------------------------
    } elsif ($self->isList) {
		# no options to set for network list
    
    #-----------------------------------------------------------------
	# If account
	#-----------------------------------------------------------------
	} elsif ($self->isAccount) {
		# no options to set for account information
    }


	#-----------------------------------------------------------------
    # End XML all the same
    #-----------------------------------------------------------------
    $xml .= '</request>';

	$self->{m_RequestXML} = $xml;

	if ($self->{DEBUG}) {
		print 'REQUEST XML ==' . "\n" . $self->{m_RequestXML} . "\n";
	}

    return $xml;
}


# REMOVED v2.6.0
#sub xmlParse {
#	# pop value
#    my $self = shift();
	
#	# check to make sure that this function is being called on an object
#    die "You must instantiate an object to use this function" if !(ref($self));

#    return $self->xmlParseEx($self->toXML());
#}


# parses both requests and responses
# handles both WMP v2.0 and WMP v2.5
sub parse {

	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

    if (@_ ne "1") { die "You must pass XML for this function to parse"; }

    my $xml = shift();

	# create new parser
    my $parser = new XML::Parser(Handlers => {	Init => sub { $self->_handle_init(@_) },
    											Final => sub { $self->_handle_final(@_) },
    											Start => sub { $self->_handle_start(@_) },
	                                          	End   => sub { $self->_handle_end(@_) } } );
    
	# reset the carrier list
	$self->{m_CarrierList} = [];

    # begin parsing xml
	$parser->parse($xml);
}

sub _handle_start {
	my $self = shift();
	my $expat = shift();
	my $element = shift();
    my @attrs = @_;
	
	# select which function to use for parsing
	if ($element eq "request") {
		$self->_parse_request(@attrs);
	} elsif ($element eq "response") {
		$self->_parse_response(@attrs);
	} elsif ($element eq "error") {
		$self->_parse_error(@attrs);
	} elsif ($element eq "status") {
		$self->_parse_status(@attrs);
	} elsif ($element eq "ticket") {
		$self->_parse_ticket(@attrs);
	} elsif ($element eq "account") {
		$self->_parse_account(@attrs);
	} elsif ($element eq "subscriber") {
		$self->_parse_account(@attrs);
	} elsif ($element eq "dest") {
		$self->_parse_dest(@attrs);
	} elsif ($element eq "source") {
		$self->_parse_source(@attrs);
	} elsif ($element eq "option") {
		$self->_parse_option(@attrs);
	} elsif ($element eq "message") {
		$self->_parse_message(@attrs);
	} elsif ($element eq "page") {
		$self->_parse_page(@attrs);
	} elsif ($element eq "service") {
		$self->_parse_service(@attrs);
	} else {
		# unknown element type
	}
}

sub _handle_end {
	# do nothing...
}
     
sub _handle_init {
    # do nothing...
}

sub _handle_final {  
    # do nothing...
}

sub _parse_request {
	# get the values
	my $self = shift();
	
	#print "parse_request -> " . $self . "\n";
	
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];
		
		if ($name eq 'version') {
			$self->{m_Version} = $value;
		} elsif ($name eq 'protocol') {
			$self->{m_Protocol} = $value;
		} elsif ($name eq 'type') {
			$self->{m_Type} = $value;
		}
	}
}

sub _parse_response {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];

		if ($name eq 'version') {
			$self->{m_Version} = $value;
		} elsif ($name eq 'protocol') {
			$self->{m_Protocol} = $value;
		} elsif ($name eq 'type') {
			$self->{m_Type} = $value;
		}
	}
}

sub _parse_error {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];

		if ($name eq 'code') {
			$self->errorCode($value);
		} elsif ($name eq 'description') {
			$self->errorDescription($value);
		} elsif ($name eq 'resolution') {
			$self->errorResolution($value);
		}
	}
}

sub _parse_status {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];

		if ($name eq 'code') {
			$self->statusCode($value);
		} elsif ($name eq 'description') {
			$self->statusDescription($value);
		}
	}
}

sub _parse_account {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];

		if ($name eq 'id') {
			$self->accountId($value);
		} elsif ($name eq 'password') {
			$self->accountPassword($value);
		} elsif ($name eq 'balance') {
			$self->accountBalance($value);
		}
	}
}


sub _parse_ticket {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];

		if ($name eq 'id') {
			$self->ticketId($value);
		} elsif ($name eq 'fee') {
			$self->ticketFee($value);
		}
	}
}


sub _parse_dest {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];

		if ($name eq 'addr') {
			$self->destAddr($value);
		} elsif ($name eq 'network') {
			$self->networkId($value);
		}
	}
}


sub _parse_source {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];

		if ($name eq 'addr') {
			$self->sourceAddr($value);
		}
	}
}


sub _parse_option {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];

		if ($name eq 'udhi') {
			$self->optUdhi($value);
		} elsif ($name eq 'encoding') {
			$self->optEncoding($value);
		}
	}
}


sub _parse_page {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];
		if ($name eq 'pin') {
			$self->destAddr($value);
		} elsif ($name eq 'callback') {
			$self->sourceAddr($value);
		} elsif ($name eq 'text') {
			# interpret text attribute as the actual
			# byte values in the string which should
			# only represent text in WMP v2.0
			$self->msgText($value);
		}
	}
}

sub _parse_message {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];

		if ($name eq 'data') {
			
			# convert hex-encoded string into byte string
			# incoming message data is always in bytes
			# interpret what the data means with the 
			# "encoding" attribute
			$self->msgData(pack("H*", $value));
			
		} elsif ($name eq 'udh') {
			
			# convert hex-encoded string into byte string
			$self->udh(pack("H*", $value));
		
		}
	}
}

sub _parse_service {
	# get the values
	my $self = shift();
	my @attrs = @_;
	# new hash for the list entry
	my $s = {};

	# loop through each attribute
	for (my $i = 0; $i < @attrs; $i+=2) {
		my $name = $attrs[$i];
		my $value = $attrs[$i+1];

		if ($name eq 'id') {
        	$s->{ID} = $value;
	    } elsif ($name eq 'title') {
        	$s->{Title} = $value;
	    } elsif ($name eq 'subtitle') {
        	$s->{SubTitle} = $value;
	    } elsif ($name eq 'contenttype') {
        	$s->{ContentType} = $value;
	    } elsif ($name eq 'pinrequired') {
        	$s->{PinRequired} = $value;
	    } elsif ($name eq 'pinminlength') {
        	$s->{PinMinLength} = $value;
	    } elsif ($name eq 'pinmaxlength') {
        	$s->{PinMaxLength} = $value;
	    } elsif ($name eq 'textrequired') {
        	$s->{TextRequired} = $value;
	    } elsif ($name eq 'textminlength') {
        	$s->{TextMinLength} = $value;
	    } elsif ($name eq 'textmaxlength') {
        	$s->{TextMaxLength} = $value;
	    } elsif ($name eq 'fromrequired') {
        	$s->{FromRequired} = $value;
	    } elsif ($name eq 'fromminlength') {
        	$s->{FromMinLength} = $value;
	    } elsif ($name eq 'frommaxlength') {
        	$s->{FromMaxLength} = $value;
	    } elsif ($name eq 'callbackrequired') {
        	$s->{CallbackRequired} = $value;
	    } elsif ($name eq 'callbacksupported') {
        	$s->{CallbackSupported} = $value;
	    } elsif ($name eq 'callbackminlength') {
        	$s->{CallbackMinLength} = $value;
	    } elsif ($name eq 'callbackmaxlength') {
        	$s->{CallbackMaxLength} = $value;
	    } elsif ($name eq 'type') {
        	$s->{Type} = $value;
	    } elsif ($name eq 'smartmsg') {
        	$s->{SmartMsgID} = $value;
	    } elsif ($name eq 'countrycode') {
        	$s->{CountryCode} = $value;
	    } elsif ($name eq 'countryname') {
        	$s->{CountryName} = $value;
	    }
	}
	
	# add entry onto carrier list
	push @{ $self->{m_CarrierList} }, $s;
}

######################################################################
#
# PRIVATE FUNCTIONS
#
######################################################################

sub escape {
    shift() if ref($_[0]);
    my $toencode = shift();
    return undef unless defined($toencode);
    $toencode=~s/([^a-zA-Z0-9_.-])/uc sprintf("%%%02x",ord($1))/eg;
    return $toencode;
}


sub html_encode {
    shift() if ref($_[0]);
    my $toencode = shift();
    return undef unless defined($toencode);

    $toencode =~ s/</&lt;/g;
    $toencode =~ s/>/&gt;/g;
    $toencode =~ s/&/&amp;/g;
    $toencode =~ s/"/&quot;/g;
    $toencode =~ s/'/&apos;/g;

    return $toencode;
}


sub unicode_encode {

    shift() if ref($_[0]);
    my $toencode = shift();
    return undef unless defined($toencode);

	Unicode::String->stringify_as("utf8");
	my $unicode_str = Unicode::String->new();
	my $text_str = "";
	my $pack_str = "";


	# encode Perl UTF-8 string into latin1 Unicode::String
	#  - currently only Basic Latin and Latin 1 Supplement
	#    are supported here due to issues with Unicode::String .
	$unicode_str->latin1( $toencode );

	# Convert to hex format ("U+XXXX U+XXXX ")
	$text_str = $unicode_str->hex;

	# Now, the interesting part.
	# We must search for the (now hex-encoded)
	#	Simplewire Unicode escape sequence.
	my $pattern = 'U\+005[C|c] U\+0058 U\+00([0-9A-Fa-f])([0-9A-Fa-f]) U\+00([0-9A-Fa-f])([0-9A-Fa-f]) U\+00([0-9A-Fa-f])([0-9A-Fa-f]) U\+00([0-9A-Fa-f])([0-9A-Fa-f])';


	# Replace Simplewire escapes with entities (beginning of string)
	$_ = $text_str;
	if( /^$pattern/ )
	{
		$pack_str = pack "H8", "$1$2$3$4$5$6$7$8";
		$text_str =~ s/^$pattern/\&#x$pack_str/;
	}

	# Replace Simplewire escapes with entities (middle of string)
	$_ = $text_str;
	while( / $pattern/ )
	{
		$pack_str = pack "H8", "$1$2$3$4$5$6$7$8";
		$text_str =~ s/ $pattern/\;\&#x$pack_str/;
		$_ = $text_str;
	}


	# Replace "U+"  with "&#x"	(beginning of string)
	$text_str =~ s/^U\+/&#x/ ;

	# Replace " U+" with ";&#x"	(middle of string)
	$text_str =~ s/ U\+/;&#x/g ;


	# Append ";" to end of string to close last entity.
	# This last ";" at the end of the string isn't necessary in most parsers.
	# However, it is included anyways to ensure full compatibility.
	if( $text_str ne "" )
	{
		$text_str .= ';';
	}

    return $text_str;
}


sub handle_http_error {

	my $self = shift();
	my $http_error = shift();

	my $errorLookup =  {
		#HTTP       Simplewire
		#ERROR      ERROR
		#---------------------
		400		=>	251,
		401		=>	252,
		402		=>	253,
		403		=>	254,
		404		=>	255,
		405		=>	256,
		406		=>	257,
		407		=>	258,
		408		=>	259,
		409		=>	260,
		410		=>	261,
		411		=>	262,
		412		=>	263,
		413		=>	264,
		414		=>	265,
		415		=>	266,
		500		=>	267,
		501		=>	268,
		502		=>	269,
		503		=>	270,
		504		=>	271,
		505		=>	272,
	};

	# check if it was anything but success codes
	if( $http_error >= 200 && $http_error < 300 ) {
		# return that no error was found
		# $self->raise_error(0);
		return 0;
	}

	# Check if valid http error number
	if (defined( $errorLookup->{$http_error})) {
		# valid http error number, so set Simplewire error
		$self->raise_error( $errorLookup->{$http_error} );
		return 1;
	}
	
	# At this point, we know that the error is not a success code
	# Nor is it an http error on our list of http errors, so return 0
	# 	- no http error.
	return 0;
}

sub raise_error {

    my $self = shift();
    my $error = shift();

    $self->errorCode($error);
	
	my $errorLookup =  {
		# Client/Internet Error Codes
		101		=>	"Error while parsing response.  Request was sent off.",
		102		=>	"The required version attribute of the response element was not found in the response.",
		103		=>	"The required protocol attribute of the response element was not found in the response.",
		104		=>	"The required type attribute of the response element was not found in the response.",
		105		=>	"The client tool does not know how to handle the type of response.",
		106		=>	"A connection could not be established with the Simplewire network.",
		107		=>	"Internet The connection timed out.",
		108		=>	"Internet An internal error occured while connecting.",
		109		=>	"Internet Trying to use an invalid URL.",
		110		=>	"Internet The host name could not be resolved.",
		111		=>	"Internet The specified protocol is not supported.",
		112		=>	"Internet An error occured while authenticating.",
		113		=>	"Internet An error occured while logging on.",
		114		=>	"Internet An invalid operation was attempted.",
		115		=>	"Internet The request is pending.",
		116		=>	"Internet An error occured while processing the proxy request.",
		117		=>	"Internet SOCKS server returned an invalid version.",
		118		=>	"Internet SOCKS error while connecting.",
		119		=>	"Internet SOCKS authentication error.",
		120		=>	"Internet SOCKS general error.",
		121		=>	"Internet Proxy authentication error.",
		122		=>	"Internet The proxy host name could not be resolved.",
		123		=>	"Internet An error occured while transfering data.",

		# HTTP Errors
		250		=>	"HTTP Error.",
		251		=>	"HTTP Bad request.",					# 400
		252		=>	"HTTP Unauthorized.",					# 401
		253		=>	"HTTP Payment required.",				# 402
		254		=>	"HTTP Forbidden.",						# 403
		255		=>	"HTTP Not found.",						# 404
		256		=>	"HTTP Method not allowed.",				# 405
		257		=>	"HTTP Not acceptable.",					# 406
		258		=>	"HTTP Proxy authentication required.",	# 407
		259		=>	"HTTP Request timeout.",				# 408
		260		=>	"HTTP Conflict.",						# 409
		261		=>	"HTTP Gone.",							# 410
		262		=>	"HTTP Length required.",				# 411
		263		=>	"HTTP Precondition failed.",			# 412
		264		=>	"HTTP Request Entity too large.",		# 413
		265		=>	"HTTP Request-URI too long.",			# 414
		266		=>	"HTTP Unsupported media type.",			# 415
		267		=>	"HTTP Internal server error.",			# 500
		268		=>	"SSL not supported or bad HTTP method", # 501
		269		=>	"HTTP Bad gateway.",					# 502
		270		=>	"HTTP Service unavailable.",			# 503
		271		=>	"HTTP Gateway timeout.",				# 504
		272		=>	"HTTP Version not supported.",			# 505
	};


	# Check if valid error number
	if (defined( $errorLookup->{$error})) {
		# valid error number, so set error description
		$self->errorDesc( $errorLookup->{$error} );
	} else {
		# invalid error number, so set general error
		$self->errorCode( 106 );
		$self->errorDesc( $errorLookup->{106} );
	}
}


sub prepare_post {

	my $self = shift();
	my $varref = shift();

	my $body = "";
	# cycle through all key/value pairs and add to content
	while (my ($var,$value) = map { escape($_) } each %$varref)
	{
		if ($body)
		{
			$body .= "&$var=$value";
		}
		else
		{
			$body = "$var=$value";
		}

	}

	# return newly formed content
	return $body;
}



sub send {

	# pop value
    my $self = shift();
	
	# check to make sure that this function is being called on an object
    die "You must instantiate an object to use this function" if !(ref($self));

	$self->{m_Type} = shift();
	
    my $txt = "";

    ##################################################################
    # Create LWP::UserAgent Object
    ##################################################################
	my $http = new LWP::UserAgent;
	$http->timeout( $self->connectionTimeout );
	$http->agent( $self->{m_UserAgent} . ' ' . $http->agent );
	
	if( defined( $self->{m_ProxyServer} ) )
	{
		$http->proxy("http", "http://" . $self->proxyServer . ':' . $self->proxyPort . '/');
	}

	my $httpErrorEvent = undef;
	
	# Create a request
	my $request = undef;
	
	my $response = undef;

	# create the xml body
	my $body = $self->toXML();
	
   	##########################################################
	# Create the url to retrieve
	##########################################################
	my $server_name = $self->remoteHost;
	
	# check whether or not the port needs overridden
	if (defined($self->remotePort) && $self->remotePort > 0) {
		if ($self->debug) { print "Connect: overriding remote port to " . $self->remotePort . "\n"; }
		$server_name = $server_name . ":" . $self->remotePort;
	} else {
		if ($self->debug) { print "Connect: using default http or https port\n"; }
	}
	
	my $full_file = undef;
	
	if ($self->{m_Secure}) {
		$full_file = 'https://' . $server_name . $self->{m_RemoteFile};
	} else {
		$full_file = 'http://' . $server_name . $self->{m_RemoteFile};
	}
	
	if ($self->debug) {
		print "Connecting to: $full_file\n";
	}

	##########################################################
	# Request and get response
	##########################################################

	# finish setting up request
	$request = new HTTP::Request( POST => $full_file);
	$request->content_type("text/xml");
	$request->content($body);
	$request->header( 'Accept' => 'text/xml' );
	$request->proxy_authorization_basic( $self->proxyUsername,
										 $self->proxyPassword );

	# send off request and get response
	$response = $http->request($request);

	$self->{m_ClientStatusCode} = $response->code;
	$self->{m_ClientStatusDesc} = $response->message;

	if ($self->handle_http_error($self->{m_ClientStatusCode})) {
		$httpErrorEvent = 1;
	}

	if ( $self->{DEBUG} && defined( $self->proxyServer ) && $response->is_success) {
		print "Successful Proxy\n";
	} elsif( $self->{DEBUG} && defined($self->proxyServer)) {
		print "Failed Proxy\n";
	}

	if (defined($response) && defined($response->content)) {
		$txt = $response->content;
	} else {
		$txt = "";
	}

	if($self->{DEBUG}) {
		print "@ SEND\n";
		print "Client Status Code: $self->{m_ClientStatusCode}\n";
		print "Client Status Desc: $self->{m_ClientStatusDesc}\n";
		print "m_ErrorCode == " . $self->errorCode . "\n";
		print "m_ErrorDesc == " . $self->errorDesc . "\n";
		print "Response Body == " . $txt . "\n";
	}

	# now, check for errors, special cases. Parse response.
	# Check for HTTP Error
	if ( defined($httpErrorEvent) ) {
		# do nothing. Http error codes were already set.
		return 0;
	} elsif (defined($txt) && $txt eq "") {
    	$self->raise_error(106);
        return 0;
	# Now parse the xml
	} else {
    	# Cleanup text
    	if (defined($txt)) {
			# set the response xml
			$self->{ResponseXML} = $txt;
        	$self->parse($txt);
        	return 1;
        } else {
        	# Problem, set general error. Return fail.
			$self->raise_error(106);
            return 0;
        }
    }
}

1;
__END__;


######################## User Documentation ##########################


## To format the following user documentation into a more readable
## format, use one of these programs: pod2man; pod2html; pod2text.