<?php

/*

	Code taken from Google's website

	Modified to use Snoopy class for HTTP request

*/

if (!function_exists('google_append_url')) {

	function read_global($var) {

	  return isset($_SERVER[$var]) ? $_SERVER[$var]: '';

	}

	function google_set_screen_res() {

	  $screen_res = read_global('HTTP_UA_PIXELS');

	  if ($screen_res == '') {

	    $screen_res = read_global('HTTP_X_UP_DEVCAP_SCREENPIXELS');

	  }

	  if ($screen_res == '') {

	    $screen_res = read_global('HTTP_X_JPHONE_DISPLAY');

	  }

	  $res_array = split('[x,*]', $screen_res);

	  if (sizeof($res_array) == 2) {

	    $GLOBALS['google']['u_w'] = $res_array[0];

	    $GLOBALS['google']['u_h'] = $res_array[1];

	  }

	}

	function google_set_muid() {

	  $muid = read_global('HTTP_X_DCMGUID');

	  if ($muid != '') {

	    $GLOBALS['google']['muid'] = $muid;

	  }

	  $muid = read_global('HTTP_X_UP_SUBNO');

	  if ($muid != '') {

	    $GLOBALS['google']['muid'] = $muid;

	  }

	  $muid = read_global('HTTP_X_EM_UID');

	  if ($muid != '') {

	    $GLOBALS['google']['muid'] = $muid;

	  }

	}	

	require_once( WP_CONTENT_DIR . '/../wp-includes/class-snoopy.php');

	$GLOBALS['google']['ad_type']='text';

	$GLOBALS['google']['channel']='';

	$GLOBALS['google']['format']='mobile_single';

	$GLOBALS['google']['https']=read_global('HTTPS');

	$GLOBALS['google']['ip']=read_global('REMOTE_ADDR');

	$GLOBALS['google']['markup']='xhtml';

	$GLOBALS['google']['oe']='utf8';

	$GLOBALS['google']['output']='xhtml';

	$GLOBALS['google']['ref']=read_global('HTTP_REFERER');

	$GLOBALS['google']['url']=read_global('HTTP_HOST') . read_global('REQUEST_URI');

	$GLOBALS['google']['useragent']=read_global('HTTP_USER_AGENT');

	$google_dt = time();

// $GLOBALS['google']['color_border']='FFFFFF';

//	$GLOBALS['google']['color_bg']='FFFFFF';

//	$GLOBALS['google']['color_link']='0000CC';

//	$GLOBALS['google']['color_text']='333333';

//	$GLOBALS['google']['color_url']='008000';

	function google_append_url(&$url, $param, $value) {

	  $url .= '&' . $param . '=' . urlencode($value);

	}

	function google_append_globals(&$url, $param) {

	  google_append_url($url, $param, $GLOBALS['google'][$param]);

	}

	function google_append_color(&$url, $param) {

	  global $google_dt;

	  $color_array = split(',', $GLOBALS['google'][$param]);

	  google_append_url($url, $param,

	                    $color_array[$google_dt % sizeof($color_array)]);

	}

	function google_get_ad_url() {

	  $google_ad_url = 'http://pagead2.googlesyndication.com/pagead/ads?';

	  $google_scheme = ($GLOBALS['google']['https'] == 'on')

	      ? 'https://' : 'http://';

		foreach ($GLOBALS['google'] as $param => $value) {

		  if ($param == 'client') {

		    google_append_url($google_ad_url, $param,

		                      'ca-mb-' . $GLOBALS['google'][$param]);

		  } else if (strpos($param, 'color_') === 0) {

		    google_append_color($google_ad_url, $param);

		  } else if (strpos($param, 'url') === 0) {

		    $google_scheme = ($GLOBALS['google']['https'] == 'on')

		        ? 'https://' : 'http://';

		    google_append_url($google_ad_url, $param,

		                      $google_scheme . $GLOBALS['google'][$param]);

		  } else {

		    google_append_globals($google_ad_url, $param);

		  }

		}

	  google_append_url($google_ad_url, 'dt',

	   		    round(1000 * array_sum(explode(' ', microtime()))));

	  return $google_ad_url;

	}

	function google_show_ad( $id, $channel = '' ) {

		global $bnc_wptouch_version;

		$ad = '';

		$GLOBALS['google']['client']= $id;

		$GLOBALS['google']['channel']= $channel;

		$google_dt = time();

		google_set_screen_res();

		google_set_muid();

   	$snoopy = new Snoopy;

   	$snoopy->agent = 'WPtouch ' . $bnc_wptouch_version;

		$ad = '';

      $result = $snoopy->fetch( google_get_ad_url() );

      if ( $result ) {

         $ad = $snoopy->results;

      }

		return $ad;

	}

}

?>