';
    $source = strip_tags($source, $allowedTags);

    return $source;
  }


 /**
  * Replace international chars
  *
  * @param string
  * @return string
  */
  function oos_replace_chars ($sStr) {
    return oos_make_filename($sStr);
  }


 /**
  * Checks to see if the currency code exists as a currency
  */
  function oos_currency_exits($code) {

    // Get database information
    $dbconn =& oosDBGetConn();
    $oostable =& oosDBGetTables();

    $currenciestable = $oostable['currencies'];
    $query = "SELECT currencies_id
              FROM $currenciestable
              WHERE code = '" . oos_db_input($code) . "'";
    $result = $dbconn->Execute($query);

    if ($result->RecordCount() > 0) {
      return $code;
    } else {
      return FALSE;
    }
  }



 /**
  * Return secure string
  *
  * @param $sStr
  * @return string
  */
  function oos_string_to_int($sStr) {
    return intval($sStr);
  }


 /**
  * Return $aContents
  */
  function oos_get_content() {
    GLOBAL $aContents;

    return $aContents;
  }



 /**
  * Parse and secure the cPath parameter values
  *
  * @param $sCategory
  * @return array
  */
  function oos_parse_category_path($sCategory) {
    // make sure the category IDs are integers
    $aCategoryPath = array_map('oos_string_to_int', explode('_', $sCategory));

    // make sure no duplicate category IDs exist which could lock the server in a loop
    $aTmp = array();
    for ($i=0, $n=count($aCategoryPath); $i<$n; $i++) {
      if (!in_array($aCategoryPath[$i], $aTmp)) {
        $aTmp[] = $aCategoryPath[$i];
      }
    }

    return $aTmp;
  }



 /**
  * Return File Extension
  *
  * @param $filename
  * @return string
  */
  function oos_get_extension($filename) {

    $filename  = strtolower($filename);
    $extension = explode("[/\\.]", $filename);
    $n = count($extension)-1;
    $extension = $extension[$n];

    return $extension;
  }


/**
 * Strip non-alpha & non-numeric except ._-:
 *
 * @param $sStr
 * @return string
 */
function oos_strip_all ($sStr) {
	$sStr = trim($sStr);
    $sStr = strtolower($sStr);

    return preg_match("/[^[:alnum:]._-]/", "", $sStr);
}


/**
 * Mail function (uses phpMailer)
 */
function oos_mail($to_name, $to_email_address, $subject, $email_text, $email_html, $from_email_name, $from_email_address, $attachments = array() ) {

	global $oEvent, $oEmail;

	if ( !is_object( $oEvent ) || (!$oEvent->installed_plugin('mail')) ) {
		return FALSE;
	}

    if (preg_match('~[\r\n]~', $to_name)) return FALSE;
    if (preg_match('~[\r\n]~', $to_email_address)) return FALSE;
    if (preg_match('~[\r\n]~', $subject)) return FALSE;
    if (preg_match('~[\r\n]~', $from_email_name)) return FALSE;
    if (preg_match('~[\r\n]~', $from_email_address)) return FALSE;

	if ( !is_array($attachments) ) {
		$attachments = explode( "\n", str_replace( "\r\n", "\n", $attachments ) );
	}

    $sLang = (isset($_SESSION['iso_639_1']) ? $_SESSION['iso_639_1'] : 'en');

	// (Re)create it, if it's gone missing
	if ( !is_object( $oEmail ) || !is_a( $oEmail, 'PHPMailer' ) ) {
		require_once MYOOS_INCLUDE_PATH . '/includes/lib/phpmailer/class.phpmailer.php';
		require_once MYOOS_INCLUDE_PATH . '/includes/lib/phpmailer/class.smtp.php';
		// Instantiate a new mail object
		$oEmail = new PHPMailer( true );
	}

	// Empty out the values that may be set
	$oEmail->ClearAllRecipients();
	$oEmail->ClearAttachments();
	$oEmail->ClearCustomHeaders();
	$oEmail->ClearReplyTos();

    $oEmail->PluginDir = OOS_ABSOLUTE_PATH . 'includes/lib/phpmailer/';
    $oEmail->SetLanguage( $sLang, OOS_ABSOLUTE_PATH . 'includes/lib/phpmailer/language/' );
    $oEmail->CharSet = CHARSET;

    $oEmail->IsMail();

    $oEmail->From = $from_email_address ? $from_email_address : STORE_OWNER_EMAIL_ADDRESS;
    $oEmail->FromName = $from_email_name ? $from_email_name : STORE_OWNER;
    $oEmail->Mailer = EMAIL_TRANSPORT;

    // Add smtp values if needed
    if ( EMAIL_TRANSPORT == 'smtp' ) {
      $oEmail->IsSMTP(); // set mailer to use SMTP
      $oEmail->SMTPAuth = OOS_SMTPAUTH; // turn on SMTP authentication
      $oEmail->Username = OOS_SMTPUSER; // SMTP username
      $oEmail->Password = OOS_SMTPPASS; // SMTP password
      $oEmail->Host     = OOS_SMTPHOST; // specify main and backup server
    } elseif ( EMAIL_TRANSPORT == 'sendmail' ) {
        if (!oos_empty(OOS_SENDMAIL)) {
          $oEmail->Sendmail = OOS_SENDMAIL;
          $oEmail->IsSendmail();
        }
    }


    $oEmail->AddAddress($to_email_address, $to_name);
    $oEmail->Subject = $subject;


    // Build the text version
    if (EMAIL_USE_HTML == 'true') {
		$oEmail->IsHTML(true);
		$oEmail->Body = $email_html;
		$oEmail->AltBody = $email_text;
    } else {
		$oEmail->IsHTML(false);
		$oEmail->Body = $email_text;
    }


	if ( !empty( $attachments ) ) {
		foreach ( $attachments as $attachment ) {
			try {
				$oEmail->AddAttachment($attachment);
			} catch ( phpmailerException $e ) {
				continue;
			}
		}
	}

	// Send!
	try {
		return $oEmail->Send();
	} catch ( phpmailerException $e ) {
		return FALSE;
	}
}

function oos_newsletter_subscribe_mail ($email_address) {
    global $aLang, $sTheme;
	
	if (empty($email_address)) {
      return FALSE;
    }
	
	$sLanguage = isset($_SESSION['language']) ? $_SESSION['language'] : DEFAULT_LANGUAGE;
	
	if (oos_validate_is_email($email_address)) {	
	
		$aContents = oos_get_content();

		// Get database information
		$dbconn =& oosDBGetConn();
		$oostable =& oosDBGetTables();

		$newsletter_recipients = $oostable['newsletter_recipients'];
		$dbconn->Execute("DELETE FROM $newsletter_recipients WHERE customers_email_address = '" . oos_db_input($email_address) . "'"); 

		$sRandom = oos_create_random_value(25);
		$sBefor = oos_create_random_value(4);
	
		$dbconn->Execute("INSERT INTO $newsletter_recipients 
                            (customers_email_address,
							mail_key,
							key_sent,
							status) VALUES ('" . oos_db_input($email_address) . "',
											'" . oos_db_input($sRandom) . "',
											now(),
											'0')");

		$nInsert_ID = $dbconn->Insert_ID();	  
		$newsletter_recipients = $oostable['newsletter_recipients_history'];
		$dbconn->Execute("INSERT INTO $newsletter_recipients 
                                    (recipients_id,
                                    date_added) VALUES ('" . intval($nInsert_ID) . "',
                                                        now())");
											   
		$sStr =  $sBefor . $nInsert_ID . 'f00d';
		$sSha1 = sha1($sStr);

		$newsletter_recipients = $oostable['newsletter_recipients'];
		$dbconn->Execute("UPDATE $newsletter_recipients
                          SET mail_sha1 = '" . oos_db_input($sSha1) . "'
                          WHERE recipients_id = '" . intval($nInsert_ID) . "'");			
		//smarty
		require_once MYOOS_INCLUDE_PATH . '/includes/classes/class_template.php';
		$smarty = new myOOS_Smarty();						

		// dont allow cache
		$smarty->caching = FALSE;

		$smarty->assign(
				array(
					'shop_name'		=> STORE_NAME,
					'shop_url'		=> OOS_HTTPS_SERVER . OOS_SHOP,
					'shop_logo'		=> STORE_LOGO,
					'services_url'	=> COMMUNITY,
					'blog_url'		=> BLOG_URL,
					'imprint_url'	=> oos_href_link($aContents['information'], 'information_id=1', FALSE, TRUE),
					'subscribe'		=> oos_href_link($aContents['newsletter'], 'action=lists&subscribe=confirm&u=' .  $sSha1 . '&id=' . $sStr . '&e=' . $sRandom, FALSE, TRUE)
				)
		);

		// create mails	
		$email_html = $smarty->fetch($sTheme . '/email/' . $sLanguage . '/newsletter_subscribe.html');
		$email_txt = $smarty->fetch($sTheme . '/email/' . $sLanguage . '/newsletter_subscribe.tpl');
		
		oos_mail('', $email_address, $aLang['newsletter_email_subject'], $email_txt, $email_html, STORE_OWNER, STORE_OWNER_EMAIL_ADDRESS);
	}
}