/gocart/packages/shipping/usps_international/libraries/usps_international.php

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class usps_international
{
	var $CI;
	
	var $liveserver	= 'http://production.shippingapis.com/ShippingAPI.dll';
    var $service_list;
    
	function usps_international()
	{
		//we're going to have this information in the back end for editing eventually
		//username password, origin zip code etc.
		$this->CI =& get_instance();
		$this->CI->load->model('Settings_model');
		
		
		$this->service_list = array(
			
			"USPS GXG&lt;sup&gt;&amp;trade;&lt;/sup&gt; Envelopes**",
			"Express Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International",
			"Express Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Flat Rate Envelope",
			"Express Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Legal Flat Rate Envelope",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Large Flat Rate Box",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Medium Flat Rate Box",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Small Flat Rate Box**",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International DVD Flat Rate Box**",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Large Video Flat Rate Box**",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Flat Rate Envelope**",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Legal Flat Rate Envelope**",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Padded Flat Rate Envelope**",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Gift Card Flat Rate Envelope**",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Small Flat Rate Envelope**",
			"Priority Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Window Flat Rate Envelope**",
			"First-Class Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Package**",
			"First-Class Mail&lt;sup&gt;&amp;reg;&lt;/sup&gt; International Large Envelope**"
						
		);

	}
	
	function rates()
	{
		$rates = array();
		
		$this->CI->load->library('session');
		
		// get customer info
		$customer = $this->CI->go_cart->customer();
		$dest_zip 	= $customer['ship_address']['zip'];
		$dest_country = $customer['ship_address']['country'];
		
		//grab this information from the config file
		$country	= $this->CI->config->item('country');
		$orig_zip	= $this->CI->config->item('zip');
		
		// retrieve settings
		$settings	= $this->CI->Settings_model->get_settings('usps_international');
		
		//check if we're enabled
		if(!$settings['enabled'] || $settings['enabled'] < 1)
		{
			return array();
		}
		
		$user	 		= $settings['username'];
		$pass 			= $settings['password'];
		$service		= explode(',',$settings['service']);
		$mailtype 		= $settings['mailtype'];
		$container 		= $settings['container'];
		$size 			= $settings['size'];
		$machinable 	= $settings['machinable'];
		$handling_method = $settings['handling_method'];
		$handling_amount = $settings['handling_amount'];
		
		// build allowed service list
		foreach($service as $s)
		{
			$service_list[] = $this->service_list[$s];
		}
		
		//set the weight
		$weight	= $this->CI->go_cart->order_weight();
		
		// value of contents
		$total = $this->CI->go_cart->order_insurable_value();
		
		//strip the decimal
		$oz		= ($weight-(floor($weight)))*100;
		//set pounds
		$lbs	= floor($weight);
		//set ounces based on decimal
		$oz	= round(($oz*16)/100);
		
		// no foreign support
		if($country!="US")
	  	{
	       return array(); 
 	    }
			
		if($dest_country=='United States')
		{
			return array();
		}
		
		//$str = '<IntlRateV2Request USERID="'. $user . '" PASSWORD="' . $pass . '">';
		$str = '<IntlRateV2Request USERID="'. $user . '">';
		$str .= '<Package ID="1">';
        $str .= '<Pounds>'.$lbs.'</Pounds><Ounces>'.$oz.'</Ounces>';
        $str .= '<MailType>ALL</MailType>';
        $str .= '<ValueOfContents>'.$total.'</ValueOfContents>';
        $str .= '<Country>'.$dest_country.'</Country>';
        $str .= '<Container>' . $container .'</Container><Size>'.$size.'</Size>';
        $str .= '<Width>10</Width><Length>5</Length><Height>5</Height><Girth>5</Girth>';
        $str .= '</Package></IntlRateV2Request>';
	
		$str = $this->liveserver .'?API=IntlRateV2&XML='. urlencode($str);
	  
        $ch = curl_init();
        // set URL and other appropriate options
        curl_setopt($ch, CURLOPT_URL, $str);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

        // grab URL and pass it to the browser
        $ats = curl_exec($ch);

        // close curl resource, and free up system resources
        curl_close($ch);
        //$xmlParser = new xmlparser();
        $this->CI->load->library('xmlparser');
        $array = $this->CI->xmlparser->GetXMLTree($ats);
       	
 
       	
       	if(isset($array['INTLRATEV2RESPONSE'][0]['PACKAGE'][0]['ERROR'])) 
       	{
       	//	var_dump($array);
       		
       		return array(); // if the request failed, just send back an empty set
       	}
       	
   		foreach ($array['INTLRATEV2RESPONSE'][0]['PACKAGE'][0]['SERVICE'] as $value)
       	{	
	         if(in_array($value['SVCDESCRIPTION'][0]['VALUE'],$service_list))
             {	
	         	$amount = $value['POSTAGE'][0]['VALUE'];
	         	
	         	if(is_numeric($handling_amount)) // valid entry?
	        	{
	        			
	    			if($handling_method=='$')
	    			{
	    				$amount += $handling_amount;
	    			}
	    			elseif($handling_method=='%')
	    			{
	    				$amount += $amount * ($handling_amount/100);
	    			}
	        	}
	
	            $rates[html_entity_decode($value['SVCDESCRIPTION'][0]['VALUE'])] = $amount;
		      }	
        }

  			
  			      
  
       return $rates;
	}
	
	function install()
	{
		$default_settings	= array(
			'username'=>'',
			'password'=>'',
			'mailtype'=>'ALL',
			'container'=>'RECTANGULAR',
			'service' => implode(',', array_keys($this->service_list)),
			'size'=>'LARGE',
			'length'=>'',
			'width'=>'',
			'height'=>'',
			'girth'=>'',
			'machinable'=>'true',
			'handling_method'=>'$',
			'handling_amount'=>5,
			'enabled'=>'0'
		);
		//set a default blank setting for flatrate shipping
		$this->CI->Settings_model->save_settings('usps_international', $default_settings);
	}
	
	function uninstall()
	{
		$this->CI->Settings_model->delete_settings('usps_international');
	}
	
	function form($post	= false)
	{
		$this->CI->load->helper('form');
		
		//this same function processes the form
		if(!$post)
		{
			$settings	= $this->CI->Settings_model->get_settings('usps_international');
			$mailtype	= $settings['mailtype'];
			$container	= $settings['container'];
			$service   	= explode(',', $settings['service']);
			$username	= $settings['username'];
			$password	= $settings['password'];
			$enabled	= $settings['enabled'];
			$size		= $settings['size'];
			$length		= $settings['length'];
			$width      = $settings['width'];
			$height		= $settings['height'];
			$girth		= $settings['girth'];
			$machinable	= $settings['machinable'];
			$handling_method = $settings['handling_method'];
			$handling_amount = $settings['handling_amount'];
		}
		else
		{
			$mailtype	= $post['mailtype'];
			$container	= $post['container'];
			$service 	= $post['service'];
			$username	= $post['username'];
			$password	= $post['password'];
			$enabled	= $post['enabled'];
			$size		= $post['size'];
			$length		= $post['length'];
			$width      = $post['width'];
			$height		= $post['height'];
			$girth		= $post['girth'];
			$machinable	= $post['machinable'];
			$handling_method = $post['handling_method'];
			$handling_amount = $post['handling_amount'];
		}
		
		$form	= '<table><tr><td>Username: </td><td>'.form_input('username', $username) .'</td></tr>';
					//<tr><td>Password: </td><td>'.form_input('password', $password) .'</td></tr>';
		
		$form	.= '</td></tr><tr><td valign="top">Services To Offer: </td><td>';
		
		 foreach($this->service_list as $id=>$opt)
         {
         	$form .= "<input type='checkbox' name='service[]' value='$id' ";
         	if(in_array($id, $service)) $form .= "checked='checked'";
         	$form .= "> ".  htmlspecialchars_decode(html_entity_decode(stripslashes($opt))) ." <br />";
         }
		
		
		$form .= '</td></tr><tr><td>Mailtype: </td><td>';
		
		$opts = array(
					  'ALL'=>'All',
					  'PACKAGE'=>'Package',
					  'ENVELOPE'=>'envelope'
					  );
		
		$form .= form_dropdown('mailtype', $opts, $mailtype);
		
		$form .= '</td></tr><tr><td>Container: </td><td>';
		
		
		$opts = array(
					  'RECTANGULAR'=>'Rectangular',
					  'NONRECTANGULAR'=>'Non Rectangular'
					  );
		
		$form .= form_dropdown('container', $opts, $container);

		$form	.= '</td></tr><tr><td>Size: </td><td>';
		
		
		$opts = array('REGULAR'=>'Regular',
					  'LARGE'=>'Large',
					  'OVERSIZE'=>'Oversize'	
					 );
		
		$form .= form_dropdown('size', $opts, $size);
		
		$form .= '</td></tr><tr><td>Pkg Length: </td><td>';
		$form .= form_input('length', $length);
		
		$form .= '</td></tr><tr><td>Pkg Width: </td><td>';
		$form .= form_input('width', $width);
		
		$form .= '</td></tr><tr><td>Pkg Height: </td><td>';
		$form .= form_input('height', $height);
		
		$form .= '</td></tr><tr><td>Pkg Girth: </td><td>';
		$form .= form_input('girth', $girth);
		
		$form .= '</td></tr><tr><td>Machinable: </td><td>';
		
		$opts = array('TRUE'=>'True', 'FALSE'=>'False');
		
		$form .= form_dropdown('machinable', $opts, $machinable);
		
		$form .= '</td></tr><tr><td>Handling Fee: </td><td>';
		
		$form .= form_dropdown('handling_method', array('$'=>'$', '%'=>'%'), $handling_method);
		
		$form .= ' '. form_input('handling_amount', $handling_amount);
		
		$form .= '</td></tr><tr><td>Module Status: </td><td>';
		
		$opts = array('Disabled', 'Enabled');
		
		$form .= form_dropdown('enabled', $opts, $enabled);
		
		$form .= '</td></tr></table>';
		
		return $form;
	}
	
	function check()
	{	
		$save = $_POST;
		
		
		//count the errors
		if(empty($save['service']))
		{
			return 'You must choose at least one service';
		}
		else if(empty($save['username']))
		{
			return 'You must provide a username';
		}
		else
		{
			
			$save['service'] = implode(',', $save['service']);
			
			//we save the settings if it gets here
			$this->CI->Settings_model->save_settings('usps_international', $save);
			
			return false;
		}
	}
}