How to Log into Barnes & Noble's Mobile Website Using Curl, Cookies, and SSL?

Using Curl to Login with SSL, Cookies, and POST

Background

This inquiry focuses on logging into Barnes & Noble's mobile website using Curl, while encountering difficulties due to the use of SSL and cookies.

Solution

To resolve the issue, consider the following adjustments:

1. URL Encoding: Encode the URL parameters (e.g., email and password) in the POST request.
2. X Value Inclusion: Include the x value in the login URL (as extracted from the initial page).

Working Example

The following code incorporates these adjustments into a working example:

// Constants
$EMAIL = '[email protected]';
$PASSWORD = 'yourpassword';
$COOKIE_FILE = "/tmp/cookies.txt";
$LOGIN_URL = "https://cart2.barnesandnoble.com/mobileacct/op.asp?stage=signIn";
$AGENT = "Nokia-Communicator-WWW-Browser/2.0 (Geos 3.0 Nokia-9000i)";

// Curl Initialization
$ch = curl_init();

// Basic Headers
$headers = ["Accept: */*", "Connection: Keep-Alive"];

// Curl Options
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_USERAGENT, $AGENT);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_COOKIEFILE, $COOKIE_FILE);
curl_setopt($ch, CURLOPT_COOKIEJAR, $COOKIE_FILE);

// Step 1: Initialize with Login URL
curl_setopt($ch, CURLOPT_URL, $LOGIN_URL);
curl_exec($ch);

// Step 2: Extract Form Fields
$content = curl_getinfo($ch);
$fields = getFormFields($content);

// Populate Form Fields
$fields['emailAddress'] = $EMAIL;
$fields['acctPassword'] = $PASSWORD;

// Extract X Value
$loginUrl = "https://cart2.barnesandnoble.com/mobileacct/op.asp?x={$x}";

// Construct POST Fields
$postFields = http_build_query($fields);

// Update Login URL and POST Options
curl_setopt($ch, CURLOPT_URL, $loginUrl);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);

// Perform Login and Retrieve Result
$result = curl_exec($ch);
print $result;

External Resources

For further assistance in using Curl, consider these additional resources:

• [Retrieve Android Market mylibrary with curl](https://stackoverflow.com/questions/4940264/retrieve-android-market-mylibrary-with-curl)
• [Multiple actions with curl](https://stackoverflow.com/questions/6032527/multiple-actions-with-curl)
• [Sending xml and headers via curl](https://stackoverflow.com/questions/2149671/sending-xml-and-headers-via-curl)
• [Login to Google with PHP and Curl, Cookie turned off?](https://stackoverflow.com/questions/1794383/login-to-google-with-php-and-curl-cookie-turned-off)
• [Pinterest login with PHP and cURL not working](https://stackoverflow.com/questions/13597892/pinterest-login-with-php-and-curl-not-working)

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