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CHAPTER 11 MANAGING CUSTOMER DETAILS
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9. Now everything is in its place, and you can see the results. Log in to your site, add some products to your shopping cart, and then click the Checkout button on your shopping cart page. Your page will look something like Figure 11-9 shown earlier.
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How It Works: The checkout_info Componentized Template
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In the init() method of the CheckoutInfo class, you start by checking whether the customer clicked the Place Order button. If so, you save the order into the database and redirect the customer to the home page: // If the Place Order button was clicked, save the order to database if ($this->_mPlaceOrder == 1) { $order_id = ShoppingCart::CreateOrder(); // Redirect to index.php $redirect_link = 'http://' . getenv('SERVER_NAME'); // If HTTP_SERVER_PORT is defined and different than default if (defined('HTTP_SERVER_PORT') && HTTP_SERVER_PORT != '80') { // Append server port $redirect_link .= ':' . HTTP_SERVER_PORT; } $redirect_link .= VIRTUAL_LOCATION . 'index.php'; header('Location:' . $redirect_link); exit; } You then need to set up some variables for the template to use: // Set members for use in the Smarty template $this->mCartItems = ShoppingCart::GetCartProducts(GET_CART_PRODUCTS); $this->mTotalAmountLabel = ShoppingCart::GetTotalAmount(); $this->mContinueShopping = $_SESSION['page_link']; $this->mCustomerData = Customer::Get(); If the customer didn t enter credit card information or a shipping address yet, a notice is displayed, and the Place Order button is disabled. If credit card information exists for the customer, you decrypt it and prepare to display the credit card type and the last four digits of its number: // We allow placing orders only if we have complete customer details if (empty ($this->mCustomerData['credit_card'])) { $this->mOrderButtonVisible = 'disabled="disabled"'; $this->mNoCreditCard = 'yes'; }
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CHAPTER 11 MANAGING CUSTOMER DETAILS
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else { $this->mPlainCreditCard = Customer::DecryptCreditCard( $this->mCustomerData['credit_card']); $this->mCreditCardNote = 'Credit card to use: ' . $this->mPlainCreditCard['card_type'] . '<br />Card number: ' . $this->mPlainCreditCard['card_number_x']; } if (empty ($this->mCustomerData['address_1'])) { $this->mOrderButtonVisible = 'disabled="disabled"'; $this->mNoShippingAddress = 'yes'; } The rest of the code is straightforward.
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When building the catalog admin pages, you also learned that it s good to use SSL for securing the data that passes between your server and the client s browser. Back then, SSL was semioptional because the administrative pages could have been restricted for local access only. However, now that you have customers sending you extremely sensitive data, using SSL isn t optional anymore! Depending on the settings you ve implemented in 7, the customer details pages should be protected already. Remember that you have the config.php file that you can use to set the behavior of your site regarding SSL. You still need to force the sensitive pages to be accessed through SSL. Say, if someone tried to access http://localhost/hatshop/index.php UpdateCreditCardDetails, the visitor should be redirected automatically to https://localhost/hatshop/index. php UpdateCreditCardDetails. Obviously, you don t need SSL connections for all areas of the site, and you shouldn t enforce it in all places because that reduces performance. However, you do want to make sure that the checkout, customer login, customer registration, and customer detail modification pages are accessible only via SSL. Assuming that your site is working correctly with SSL, you should make some updates to ensure that the pages can t be accessed via HTTP Add the following code at the beginning of . index.php: // Load Smarty library and config files require_once 'include/app_top.php'; // Is the page being accessed through an HTTPS connection if (getenv('HTTPS') != 'on') $is_https = false;
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CHAPTER 11 MANAGING CUSTOMER DETAILS
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else $is_https = true; // Visiting a sensitive page if (isset($_GET['RegisterCustomer']) || isset($_GET['UpdateAccountDetails']) || isset($_GET['UpdateAddressDetails']) || isset($_GET['UpdateCreditCardDetails']) || isset($_GET['Checkout']) || isset($_POST['Login'])) $is_sensitive_page = true; else $is_sensitive_page = false; // Use HTTPS when accessing sensitive pages if ($is_sensitive_page && $is_https == false && USE_SSL != 'no') { header ('Location: https://' . getenv('SERVER_NAME') . getenv('REQUEST_URI')); exit; } // Don't use HTTPS for nonsensitive pages if (!$is_sensitive_page && $is_https == true) { $link = 'http://' . getenv('SERVER_NAME'); // If HTTP_SERVER_PORT is defined and different than default if (defined('HTTP_SERVER_PORT') && HTTP_SERVER_PORT != '80') { // Append server port $link .= ':' . HTTP_SERVER_PORT; } $link .= getenv('REQUEST_URI'); header ('Location: ' . $link); exit; } /* If not visiting a product page, save the link to the current page in the page_link session variable; it will be used to create the Continue Shopping link in the product details page and the links to product details pages */ if (!isset ($_GET['ProductID']) && !isset ($_GET['CartAction']))
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