AyeCode / invoicing

includes/wpinv-invoice-functions.php

Indentation +69 added lines, -69 removed lines

@@ -700,7 +700,7 @@ 
 }
 
 function wpinv_get_payment_key( $invoice_id = 0 ) {
-	$invoice = new WPInv_Invoice( $invoice_id );
+    $invoice = new WPInv_Invoice( $invoice_id );
     return $invoice->get_key();
 }
 
@@ -966,7 +966,7 @@ 
         return false;
     }
     $invoice = wpinv_get_invoice_cart();
-	if ( empty( $invoice ) ) {
+    if ( empty( $invoice ) ) {
         return false;
     }
 
@@ -1259,20 +1259,20 @@ 
 }
 
 function wpinv_checkout_get_cc_info() {
-	$cc_info = array();
-	$cc_info['card_name']      = isset( $_POST['card_name'] )       ? sanitize_text_field( $_POST['card_name'] )       : '';
-	$cc_info['card_number']    = isset( $_POST['card_number'] )     ? sanitize_text_field( $_POST['card_number'] )     : '';
-	$cc_info['card_cvc']       = isset( $_POST['card_cvc'] )        ? sanitize_text_field( $_POST['card_cvc'] )        : '';
-	$cc_info['card_exp_month'] = isset( $_POST['card_exp_month'] )  ? sanitize_text_field( $_POST['card_exp_month'] )  : '';
-	$cc_info['card_exp_year']  = isset( $_POST['card_exp_year'] )   ? sanitize_text_field( $_POST['card_exp_year'] )   : '';
-	$cc_info['card_address']   = isset( $_POST['wpinv_address'] )  ? sanitize_text_field( $_POST['wpinv_address'] ) : '';
-	$cc_info['card_city']      = isset( $_POST['wpinv_city'] )     ? sanitize_text_field( $_POST['wpinv_city'] )    : '';
-	$cc_info['card_state']     = isset( $_POST['wpinv_state'] )    ? sanitize_text_field( $_POST['wpinv_state'] )   : '';
-	$cc_info['card_country']   = isset( $_POST['wpinv_country'] )  ? sanitize_text_field( $_POST['wpinv_country'] ) : '';
-	$cc_info['card_zip']       = isset( $_POST['wpinv_zip'] )      ? sanitize_text_field( $_POST['wpinv_zip'] )     : '';
-
-	// Return cc info
-	return $cc_info;
+    $cc_info = array();
+    $cc_info['card_name']      = isset( $_POST['card_name'] )       ? sanitize_text_field( $_POST['card_name'] )       : '';
+    $cc_info['card_number']    = isset( $_POST['card_number'] )     ? sanitize_text_field( $_POST['card_number'] )     : '';
+    $cc_info['card_cvc']       = isset( $_POST['card_cvc'] )        ? sanitize_text_field( $_POST['card_cvc'] )        : '';
+    $cc_info['card_exp_month'] = isset( $_POST['card_exp_month'] )  ? sanitize_text_field( $_POST['card_exp_month'] )  : '';
+    $cc_info['card_exp_year']  = isset( $_POST['card_exp_year'] )   ? sanitize_text_field( $_POST['card_exp_year'] )   : '';
+    $cc_info['card_address']   = isset( $_POST['wpinv_address'] )  ? sanitize_text_field( $_POST['wpinv_address'] ) : '';
+    $cc_info['card_city']      = isset( $_POST['wpinv_city'] )     ? sanitize_text_field( $_POST['wpinv_city'] )    : '';
+    $cc_info['card_state']     = isset( $_POST['wpinv_state'] )    ? sanitize_text_field( $_POST['wpinv_state'] )   : '';
+    $cc_info['card_country']   = isset( $_POST['wpinv_country'] )  ? sanitize_text_field( $_POST['wpinv_country'] ) : '';
+    $cc_info['card_zip']       = isset( $_POST['wpinv_zip'] )      ? sanitize_text_field( $_POST['wpinv_zip'] )     : '';
+
+    // Return cc info
+    return $cc_info;
 }
 
 function wpinv_checkout_validate_cc_zip( $zip = 0, $country_code = '' ) {
@@ -1479,7 +1479,7 @@ 
         $required_fields  = wpinv_checkout_required_fields();
 
         // Loop through required fields and show error messages
-         if ( !empty( $required_fields ) ) {
+            if ( !empty( $required_fields ) ) {
             foreach ( $required_fields as $field_name => $value ) {
                 if ( in_array( $value, $required_fields ) && empty( $_POST[ 'wpinv_' . $field_name ] ) ) {
                     wpinv_set_error( $value['error_id'], $value['error_message'] );
@@ -1581,7 +1581,7 @@ 
 }
 
 function wpinv_get_checkout_session() {
-	global $wpi_session;
+    global $wpi_session;
     return $wpi_session->get( 'wpinv_checkout' );
 }
 
@@ -1661,7 +1661,7 @@ 
         $response['data']['taxf']       = $invoice->get_tax( true );
         $response['data']['total']      = $invoice->get_total();
         $response['data']['totalf']     = $invoice->get_total( true );
-	    $response['data']['free']       = $invoice->is_free() && ( ! ( (float) $response['data']['total'] > 0 ) || $invoice->is_free_trial() ) ? true : false;
+        $response['data']['free']       = $invoice->is_free() && ( ! ( (float) $response['data']['total'] > 0 ) || $invoice->is_free_trial() ) ? true : false;
 
         wp_send_json( $response );
     }
@@ -1731,8 +1731,8 @@ 
     // Allow themes and plugins to hook before the gateway
     do_action( 'wpinv_checkout_before_gateway', $_POST, $user_info, $valid_data );
 
-     // If it is free, abort.
-     if ( $invoice->is_free() && ( ! $invoice->is_recurring() || 0 ==  $invoice->get_recurring_details( 'total' ) ) ) {
+        // If it is free, abort.
+        if ( $invoice->is_free() && ( ! $invoice->is_recurring() || 0 ==  $invoice->get_recurring_details( 'total' ) ) ) {
         $invoice_data['gateway'] = 'manual';
         $_POST['wpi-gateway'] = 'manual';
     }
@@ -1948,52 +1948,52 @@ 
  * Given an invoice key, this function returns the id.
  */
 function wpinv_get_invoice_id_by_key( $key ) {
-	global $wpdb;
+    global $wpdb;
     $table      = $wpdb->prefix . 'getpaid_invoices';
-	return (int) $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $table WHERE`key` = %s LIMIT 1", $key ) );
+    return (int) $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $table WHERE`key` = %s LIMIT 1", $key ) );
 }
 
 function wpinv_can_view_receipt( $invoice_key = '' ) {
-	$return = current_user_can( 'manage_options' );
+    $return = current_user_can( 'manage_options' );
 
-	if ( empty( $invoice_key ) ) {
-		return false;
-	}
+    if ( empty( $invoice_key ) ) {
+        return false;
+    }
 
-	global $wpinv_receipt_args;
+    global $wpinv_receipt_args;
 
-	$wpinv_receipt_args['id'] = wpinv_get_invoice_id_by_key( $invoice_key );
-	if ( isset( $_GET['invoice-id'] ) ) {
-		$wpinv_receipt_args['id'] = $invoice_key == wpinv_get_payment_key( (int)$_GET['invoice-id'] ) ? (int)$_GET['invoice-id'] : 0;
-	}
+    $wpinv_receipt_args['id'] = wpinv_get_invoice_id_by_key( $invoice_key );
+    if ( isset( $_GET['invoice-id'] ) ) {
+        $wpinv_receipt_args['id'] = $invoice_key == wpinv_get_payment_key( (int)$_GET['invoice-id'] ) ? (int)$_GET['invoice-id'] : 0;
+    }
 
-	if ( empty( $wpinv_receipt_args['id'] ) ) {
-		return $return;
-	}
+    if ( empty( $wpinv_receipt_args['id'] ) ) {
+        return $return;
+    }
 
-	$invoice = wpinv_get_invoice( $wpinv_receipt_args['id'] );
-	if ( !( !empty( $invoice->ID ) && $invoice->get_key() === $invoice_key ) ) {
-		return $return;
-	}
+    $invoice = wpinv_get_invoice( $wpinv_receipt_args['id'] );
+    if ( !( !empty( $invoice->ID ) && $invoice->get_key() === $invoice_key ) ) {
+        return $return;
+    }
 
-	if ( is_user_logged_in() ) {
-		if ( (int)$invoice->get_user_id() === (int) get_current_user_id() ) {
-			$return = true;
-		}
-	}
+    if ( is_user_logged_in() ) {
+        if ( (int)$invoice->get_user_id() === (int) get_current_user_id() ) {
+            $return = true;
+        }
+    }
 
-	$session = wpinv_get_checkout_session();
-	if ( isset( $_GET['invoice_key'] ) || ( $session && isset( $session['invoice_key'] ) ) ) {
-		$check_key = isset( $_GET['invoice_key'] ) ? $_GET['invoice_key'] : $session['invoice_key'];
+    $session = wpinv_get_checkout_session();
+    if ( isset( $_GET['invoice_key'] ) || ( $session && isset( $session['invoice_key'] ) ) ) {
+        $check_key = isset( $_GET['invoice_key'] ) ? $_GET['invoice_key'] : $session['invoice_key'];
 
-		if ( wpinv_require_login_to_checkout() ) {
-			$return = $return && $check_key == $invoice_key;
-		} else {
-			$return = $check_key == $invoice_key;
-		}
-	}
+        if ( wpinv_require_login_to_checkout() ) {
+            $return = $return && $check_key == $invoice_key;
+        } else {
+            $return = $check_key == $invoice_key;
+        }
+    }
 
-	return (bool) apply_filters( 'wpinv_can_view_receipt', $return, $invoice_key );
+    return (bool) apply_filters( 'wpinv_can_view_receipt', $return, $invoice_key );
 }
 
 function wpinv_pay_for_invoice() {
@@ -2303,14 +2303,14 @@ 
 
     if ( isset( $_GET['invoice_key'] ) || is_singular( 'wpi_invoice' ) || is_singular( 'wpi_quote' ) ) {
         $invoice_key = isset( $_GET['invoice_key'] ) ? urldecode($_GET['invoice_key']) : '';
-	    global $post;
+        global $post;
 
         if(!empty($invoice_key)){
-	        $invoice_id = wpinv_get_invoice_id_by_key($invoice_key);
+            $invoice_id = wpinv_get_invoice_id_by_key($invoice_key);
         } else if(!empty( $post ) && ($post->post_type == 'wpi_invoice' || $post->post_type == 'wpi_quote')) {
-			$invoice_id = $post->ID;
+            $invoice_id = $post->ID;
         } else {
-        	return;
+            return;
         }
 
         $invoice = new WPInv_Invoice($invoice_id);
@@ -2319,17 +2319,17 @@ 
             return;
         }
 
-	    if ( is_user_logged_in() ) {
-		    if ( (int)$invoice->get_user_id() === get_current_user_id() ) {
-			    update_post_meta($invoice_id,'_wpinv_is_viewed', 1);
-		    } else if ( !wpinv_require_login_to_checkout() && isset( $_GET['invoice_key'] ) && $_GET['invoice_key'] === $invoice->get_key() ) {
-			    update_post_meta($invoice_id,'_wpinv_is_viewed', 1);
-		    }
-	    } else {
-		    if ( !wpinv_require_login_to_checkout() && isset( $_GET['invoice_key'] ) && $_GET['invoice_key'] === $invoice->get_key() ) {
-			    update_post_meta($invoice_id,'_wpinv_is_viewed', 1);
-		    }
-	    }
+        if ( is_user_logged_in() ) {
+            if ( (int)$invoice->get_user_id() === get_current_user_id() ) {
+                update_post_meta($invoice_id,'_wpinv_is_viewed', 1);
+            } else if ( !wpinv_require_login_to_checkout() && isset( $_GET['invoice_key'] ) && $_GET['invoice_key'] === $invoice->get_key() ) {
+                update_post_meta($invoice_id,'_wpinv_is_viewed', 1);
+            }
+        } else {
+            if ( !wpinv_require_login_to_checkout() && isset( $_GET['invoice_key'] ) && $_GET['invoice_key'] === $invoice->get_key() ) {
+                update_post_meta($invoice_id,'_wpinv_is_viewed', 1);
+            }
+        }
     }
 
 }

includes/class-wpinv-session-handler.php

Indentation +268 added lines, -268 removed lines

@@ -12,125 +12,125 @@ 
  */
 class WPInv_Session_Handler extends WPInv_Session {
 
-	/**
-	 * Cookie name used for the session.
-	 *
-	 * @var string cookie name
-	 */
-	protected $_cookie;
-
-	/**
-	 * Stores session expiry.
-	 *
-	 * @var int session due to expire timestamp
-	 */
-	protected $_session_expiring;
-
-	/**
-	 * Stores session due to expire timestamp.
-	 *
-	 * @var string session expiration timestamp
-	 */
-	protected $_session_expiration;
-
-	/**
-	 * True when the cookie exists.
-	 *
-	 * @var bool Based on whether a cookie exists.
-	 */
-	protected $_has_cookie = false;
-
-	/**
-	 * Table name for session data.
-	 *
-	 * @var string Custom session table name
-	 */
-	protected $_table;
-
-	/**
-	 * Constructor for the session class.
-	 */
-	public function __construct() {
-
-	    $this->_cookie = apply_filters( 'wpinv_cookie', 'wpinv_session_' . COOKIEHASH );
+    /**
+     * Cookie name used for the session.
+     *
+     * @var string cookie name
+     */
+    protected $_cookie;
+
+    /**
+     * Stores session expiry.
+     *
+     * @var int session due to expire timestamp
+     */
+    protected $_session_expiring;
+
+    /**
+     * Stores session due to expire timestamp.
+     *
+     * @var string session expiration timestamp
+     */
+    protected $_session_expiration;
+
+    /**
+     * True when the cookie exists.
+     *
+     * @var bool Based on whether a cookie exists.
+     */
+    protected $_has_cookie = false;
+
+    /**
+     * Table name for session data.
+     *
+     * @var string Custom session table name
+     */
+    protected $_table;
+
+    /**
+     * Constructor for the session class.
+     */
+    public function __construct() {
+
+        $this->_cookie = apply_filters( 'wpinv_cookie', 'wpinv_session_' . COOKIEHASH );
         add_action( 'init', array( $this, 'init' ), -1 );
-		add_action( 'wp_logout', array( $this, 'destroy_session' ) );
-		add_action( 'wp', array( $this, 'set_customer_session_cookie' ), 10 );
-		add_action( 'shutdown', array( $this, 'save_data' ), 20 );
-
-	}
-
-	/**
-	 * Init hooks and session data.
-	 *
-	 * @since 3.3.0
-	 */
-	public function init() {
-		$this->init_session_cookie();
-
-		if ( ! is_user_logged_in() ) {
-			add_filter( 'nonce_user_logged_out', array( $this, 'nonce_user_logged_out' ) );
-		}
-	}
-
-	/**
-	 * Setup cookie and customer ID.
-	 *
-	 * @since 3.6.0
-	 */
-	public function init_session_cookie() {
-		$cookie = $this->get_session_cookie();
-
-		if ( $cookie ) {
-			$this->_customer_id        = $cookie[0];
-			$this->_session_expiration = $cookie[1];
-			$this->_session_expiring   = $cookie[2];
-			$this->_has_cookie         = true;
-			$this->_data               = $this->get_session_data();
-
-			// If the user logs in, update session.
-			if ( is_user_logged_in() && get_current_user_id() != $this->_customer_id ) {
-				$this->_customer_id = get_current_user_id();
-				$this->_dirty       = true;
-				$this->save_data();
-				$this->set_customer_session_cookie( true );
-			}
-
-			// Update session if its close to expiring.
-			if ( time() > $this->_session_expiring ) {
-				$this->set_session_expiration();
-				$this->update_session_timestamp( $this->_customer_id, $this->_session_expiration );
-			}
-		} else {
-			$this->set_session_expiration();
-			$this->_customer_id = $this->generate_customer_id();
-			$this->_data        = $this->get_session_data();
-		}
-	}
-
-	/**
-	 * Sets the session cookie on-demand (usually after adding an item to the cart).
-	 *
-	 * Since the cookie name (as of 2.1) is prepended with wp, cache systems like batcache will not cache pages when set.
-	 *
-	 * Warning: Cookies will only be set if this is called before the headers are sent.
-	 *
-	 * @param bool $set Should the session cookie be set.
-	 */
-	public function set_customer_session_cookie( $set ) {
-		if ( $set ) {
-			$to_hash           = $this->_customer_id . '|' . $this->_session_expiration;
-			$cookie_hash       = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
-			$cookie_value      = $this->_customer_id . '||' . $this->_session_expiration . '||' . $this->_session_expiring . '||' . $cookie_hash;
-			$this->_has_cookie = true;
-
-			if ( ! isset( $_COOKIE[ $this->_cookie ] ) || $_COOKIE[ $this->_cookie ] !== $cookie_value ) {
-				$this->setcookie( $this->_cookie, $cookie_value, $this->_session_expiration, $this->use_secure_cookie(), true );
-			}
-		}
-	}
-
-	public function setcookie($name, $value, $expire = 0, $secure = false, $httponly = false){
+        add_action( 'wp_logout', array( $this, 'destroy_session' ) );
+        add_action( 'wp', array( $this, 'set_customer_session_cookie' ), 10 );
+        add_action( 'shutdown', array( $this, 'save_data' ), 20 );
+
+    }
+
+    /**
+     * Init hooks and session data.
+     *
+     * @since 3.3.0
+     */
+    public function init() {
+        $this->init_session_cookie();
+
+        if ( ! is_user_logged_in() ) {
+            add_filter( 'nonce_user_logged_out', array( $this, 'nonce_user_logged_out' ) );
+        }
+    }
+
+    /**
+     * Setup cookie and customer ID.
+     *
+     * @since 3.6.0
+     */
+    public function init_session_cookie() {
+        $cookie = $this->get_session_cookie();
+
+        if ( $cookie ) {
+            $this->_customer_id        = $cookie[0];
+            $this->_session_expiration = $cookie[1];
+            $this->_session_expiring   = $cookie[2];
+            $this->_has_cookie         = true;
+            $this->_data               = $this->get_session_data();
+
+            // If the user logs in, update session.
+            if ( is_user_logged_in() && get_current_user_id() != $this->_customer_id ) {
+                $this->_customer_id = get_current_user_id();
+                $this->_dirty       = true;
+                $this->save_data();
+                $this->set_customer_session_cookie( true );
+            }
+
+            // Update session if its close to expiring.
+            if ( time() > $this->_session_expiring ) {
+                $this->set_session_expiration();
+                $this->update_session_timestamp( $this->_customer_id, $this->_session_expiration );
+            }
+        } else {
+            $this->set_session_expiration();
+            $this->_customer_id = $this->generate_customer_id();
+            $this->_data        = $this->get_session_data();
+        }
+    }
+
+    /**
+     * Sets the session cookie on-demand (usually after adding an item to the cart).
+     *
+     * Since the cookie name (as of 2.1) is prepended with wp, cache systems like batcache will not cache pages when set.
+     *
+     * Warning: Cookies will only be set if this is called before the headers are sent.
+     *
+     * @param bool $set Should the session cookie be set.
+     */
+    public function set_customer_session_cookie( $set ) {
+        if ( $set ) {
+            $to_hash           = $this->_customer_id . '|' . $this->_session_expiration;
+            $cookie_hash       = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
+            $cookie_value      = $this->_customer_id . '||' . $this->_session_expiration . '||' . $this->_session_expiring . '||' . $cookie_hash;
+            $this->_has_cookie = true;
+
+            if ( ! isset( $_COOKIE[ $this->_cookie ] ) || $_COOKIE[ $this->_cookie ] !== $cookie_value ) {
+                $this->setcookie( $this->_cookie, $cookie_value, $this->_session_expiration, $this->use_secure_cookie(), true );
+            }
+        }
+    }
+
+    public function setcookie($name, $value, $expire = 0, $secure = false, $httponly = false){
         if ( ! headers_sent() ) {
             setcookie( $name, $value, $expire, COOKIEPATH ? COOKIEPATH : '/', COOKIE_DOMAIN, $secure, apply_filters( 'wpinv_cookie_httponly', $httponly, $name, $value, $expire, $secure ) );
         } elseif ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
@@ -139,86 +139,86 @@ 
         }
     }
 
-	/**
-	 * Should the session cookie be secure?
-	 *
-	 * @since 3.6.0
-	 * @return bool
-	 */
-	protected function use_secure_cookie() {
+    /**
+     * Should the session cookie be secure?
+     *
+     * @since 3.6.0
+     * @return bool
+     */
+    protected function use_secure_cookie() {
         $is_https = false !== strstr( get_option( 'home' ), 'https:' );
-		return apply_filters( 'wpinv_session_use_secure_cookie', $is_https && is_ssl() );
-	}
-
-	/**
-	 * Return true if the current user has an active session, i.e. a cookie to retrieve values.
-	 *
-	 * @return bool
-	 */
-	public function has_session() {
-		return isset( $_COOKIE[ $this->_cookie ] ) || $this->_has_cookie || is_user_logged_in(); // @codingStandardsIgnoreLine.
-	}
-
-	/**
-	 * Set session expiration.
-	 */
-	public function set_session_expiration() {
-		$this->_session_expiring   = time() + intval( apply_filters( 'wpinv_session_expiring', 60 * 60 * 47 ) ); // 47 Hours.
-		$this->_session_expiration = time() + intval( apply_filters( 'wpinv_session_expiration', 60 * 60 * 48 ) ); // 48 Hours.
-	}
-
-	/**
-	 * Generates session ids.
-	 *
-	 * @return string
-	 */
-	public function generate_customer_id() {
-		require_once ABSPATH . 'wp-includes/class-phpass.php';
-		$hasher      = new PasswordHash( 8, false );
-		return md5( $hasher->get_random_bytes( 32 ) );
-	}
-
-	/**
-	 * Get the session cookie, if set. Otherwise return false.
-	 *
-	 * Session cookies without a customer ID are invalid.
-	 *
-	 * @return bool|array
-	 */
-	public function get_session_cookie() {
-		$cookie_value = isset( $_COOKIE[ $this->_cookie ] ) ? wp_unslash( $_COOKIE[ $this->_cookie ] ) : false; // @codingStandardsIgnoreLine.
-
-		if ( empty( $cookie_value ) || ! is_string( $cookie_value ) ) {
-			return false;
-		}
-
-		list( $customer_id, $session_expiration, $session_expiring, $cookie_hash ) = explode( '||', $cookie_value );
-
-		if ( empty( $customer_id ) ) {
-			return false;
-		}
-
-		// Validate hash.
-		$to_hash = $customer_id . '|' . $session_expiration;
-		$hash    = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
-
-		if ( empty( $cookie_hash ) || ! hash_equals( $hash, $cookie_hash ) ) {
-			return false;
-		}
-
-		return array( $customer_id, $session_expiration, $session_expiring, $cookie_hash );
-	}
-
-	/**
-	 * Get session data.
-	 *
-	 * @return array
-	 */
-	public function get_session_data() {
-		return $this->has_session() ? (array) $this->get_session( $this->_customer_id ) : array();
-	}
-
-	public function generate_key($customer_id){
+        return apply_filters( 'wpinv_session_use_secure_cookie', $is_https && is_ssl() );
+    }
+
+    /**
+     * Return true if the current user has an active session, i.e. a cookie to retrieve values.
+     *
+     * @return bool
+     */
+    public function has_session() {
+        return isset( $_COOKIE[ $this->_cookie ] ) || $this->_has_cookie || is_user_logged_in(); // @codingStandardsIgnoreLine.
+    }
+
+    /**
+     * Set session expiration.
+     */
+    public function set_session_expiration() {
+        $this->_session_expiring   = time() + intval( apply_filters( 'wpinv_session_expiring', 60 * 60 * 47 ) ); // 47 Hours.
+        $this->_session_expiration = time() + intval( apply_filters( 'wpinv_session_expiration', 60 * 60 * 48 ) ); // 48 Hours.
+    }
+
+    /**
+     * Generates session ids.
+     *
+     * @return string
+     */
+    public function generate_customer_id() {
+        require_once ABSPATH . 'wp-includes/class-phpass.php';
+        $hasher      = new PasswordHash( 8, false );
+        return md5( $hasher->get_random_bytes( 32 ) );
+    }
+
+    /**
+     * Get the session cookie, if set. Otherwise return false.
+     *
+     * Session cookies without a customer ID are invalid.
+     *
+     * @return bool|array
+     */
+    public function get_session_cookie() {
+        $cookie_value = isset( $_COOKIE[ $this->_cookie ] ) ? wp_unslash( $_COOKIE[ $this->_cookie ] ) : false; // @codingStandardsIgnoreLine.
+
+        if ( empty( $cookie_value ) || ! is_string( $cookie_value ) ) {
+            return false;
+        }
+
+        list( $customer_id, $session_expiration, $session_expiring, $cookie_hash ) = explode( '||', $cookie_value );
+
+        if ( empty( $customer_id ) ) {
+            return false;
+        }
+
+        // Validate hash.
+        $to_hash = $customer_id . '|' . $session_expiration;
+        $hash    = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
+
+        if ( empty( $cookie_hash ) || ! hash_equals( $hash, $cookie_hash ) ) {
+            return false;
+        }
+
+        return array( $customer_id, $session_expiration, $session_expiring, $cookie_hash );
+    }
+
+    /**
+     * Get session data.
+     *
+     * @return array
+     */
+    public function get_session_data() {
+        return $this->has_session() ? (array) $this->get_session( $this->_customer_id ) : array();
+    }
+
+    public function generate_key($customer_id){
         if(!$customer_id){
             return;
         }
@@ -226,62 +226,62 @@ 
         return 'wpi_trans_'.$customer_id;
     }
 
-	/**
-	 * Save data.
-	 */
-	public function save_data() {
-		// Dirty if something changed - prevents saving nothing new.
-		if ( $this->_dirty && $this->has_session() ) {
+    /**
+     * Save data.
+     */
+    public function save_data() {
+        // Dirty if something changed - prevents saving nothing new.
+        if ( $this->_dirty && $this->has_session() ) {
 
             set_transient( $this->generate_key($this->_customer_id), $this->_data, $this->_session_expiration);
 
-			$this->_dirty = false;
-		}
-	}
-
-	/**
-	 * Destroy all session data.
-	 */
-	public function destroy_session() {
-		$this->delete_session( $this->_customer_id );
-		$this->forget_session();
-	}
-
-	/**
-	 * Forget all session data without destroying it.
-	 */
-	public function forget_session() {
-		$this->setcookie( $this->_cookie, '', time() - YEAR_IN_SECONDS, $this->use_secure_cookie(), true );
-
-		wpinv_empty_cart();
-
-		$this->_data        = array();
-		$this->_dirty       = false;
-		$this->_customer_id = $this->generate_customer_id();
-	}
-
-	/**
-	 * When a user is logged out, ensure they have a unique nonce by using the customer/session ID.
-	 *
-	 * @param int $uid User ID.
-	 * @return string
-	 */
-	public function nonce_user_logged_out( $uid ) {
-		return $this->has_session() && $this->_customer_id ? $this->_customer_id : $uid;
-	}
-
-	/**
-	 * Returns the session.
-	 *
-	 * @param string $customer_id Customer ID.
-	 * @param mixed  $default Default session value.
-	 * @return string|array
-	 */
-	public function get_session( $customer_id, $default = false ) {
-
-		if ( defined( 'WP_SETUP_CONFIG' ) ) {
-			return array();
-		}
+            $this->_dirty = false;
+        }
+    }
+
+    /**
+     * Destroy all session data.
+     */
+    public function destroy_session() {
+        $this->delete_session( $this->_customer_id );
+        $this->forget_session();
+    }
+
+    /**
+     * Forget all session data without destroying it.
+     */
+    public function forget_session() {
+        $this->setcookie( $this->_cookie, '', time() - YEAR_IN_SECONDS, $this->use_secure_cookie(), true );
+
+        wpinv_empty_cart();
+
+        $this->_data        = array();
+        $this->_dirty       = false;
+        $this->_customer_id = $this->generate_customer_id();
+    }
+
+    /**
+     * When a user is logged out, ensure they have a unique nonce by using the customer/session ID.
+     *
+     * @param int $uid User ID.
+     * @return string
+     */
+    public function nonce_user_logged_out( $uid ) {
+        return $this->has_session() && $this->_customer_id ? $this->_customer_id : $uid;
+    }
+
+    /**
+     * Returns the session.
+     *
+     * @param string $customer_id Customer ID.
+     * @param mixed  $default Default session value.
+     * @return string|array
+     */
+    public function get_session( $customer_id, $default = false ) {
+
+        if ( defined( 'WP_SETUP_CONFIG' ) ) {
+            return array();
+        }
 
         if ( !is_user_logged_in() ) {
             if(!wp_verify_nonce( $customer_id, 'wpinv-session-customer-id' )){
@@ -296,32 +296,32 @@ 
             $value = $default;
         }
 
-		return maybe_unserialize( $value );
-	}
+        return maybe_unserialize( $value );
+    }
 
-	/**
-	 * Delete the session from the cache and database.
-	 *
-	 * @param int $customer_id Customer ID.
-	 */
-	public function delete_session( $customer_id ) {
+    /**
+     * Delete the session from the cache and database.
+     *
+     * @param int $customer_id Customer ID.
+     */
+    public function delete_session( $customer_id ) {
 
         $key = $this->generate_key($customer_id);
 
-		delete_transient($key);
-	}
+        delete_transient($key);
+    }
 
-	/**
-	 * Update the session expiry timestamp.
-	 *
-	 * @param string $customer_id Customer ID.
-	 * @param int    $timestamp Timestamp to expire the cookie.
-	 */
-	public function update_session_timestamp( $customer_id, $timestamp ) {
+    /**
+     * Update the session expiry timestamp.
+     *
+     * @param string $customer_id Customer ID.
+     * @param int    $timestamp Timestamp to expire the cookie.
+     */
+    public function update_session_timestamp( $customer_id, $timestamp ) {
 
         set_transient( $this->generate_key($customer_id), maybe_serialize( $this->_data ), $timestamp);
 
-	}
+    }
 }
 
 global $wpi_session;