WC_Session_Handler - Code Metrics - Inspection of "Merge branch 'fix/21830'" - woocommerce/woocommerce - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( fb5f9c...377d79 )

by Mike

created 2019-02-13 14:45 UTC

WC_Session_Handler B

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	337
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Test Coverage

Coverage

65.69%

Importance

Changes

Metric	Value
dl	0
loc	337
ccs	67
cts	102
cp	0.6569
rs	8.96
c	0
b	0
f	0
wmc	43
lcom	1
cbo	2

18 Methods

Rating	Name	Size	Complexity
A	__construct()	4	1
A	init()	12	2
A	init_session_cookie()	19	3
A	set_customer_session_cookie()	12	4
A	has_session()	3	3
A	set_session_expiration()	4	1
A	generate_customer_id()	15	3
B	get_session_cookie()	23	7
A	get_session_data()	3	2
A	get_cache_prefix()	3	1
A	save_data()	19	3
A	destroy_session()	4	1
A	forget_session()	9	1
A	nonce_user_logged_out()	3	3
A	cleanup_sessions()	9	2
A	get_session()	22	4
A	delete_session()	12	1
A	update_session_timestamp()	16	1

How to fix Complexity

<?php
/**
 * Handle data for the current customers session.
 * Implements the WC_Session abstract class.
 *
 * From 2.5 this uses a custom table for session storage. Based on https://github.com/kloon/woocommerce-large-sessions.
 *
 * @class    WC_Session_Handler
 * @version  2.5.0
 * @package  WooCommerce/Classes
 */

defined( 'ABSPATH' ) || exit;

/**
 * Session handler class.
 */
class WC_Session_Handler extends WC_Session {

	/**
	 * Cookie name used for the session.
	 *
	 * @var string cookie name
	 */
	protected $_cookie;

	/**
	 * Stores session expiry.
	 *
	 * @var string 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( 'woocommerce_cookie', 'wp_woocommerce_session_' . COOKIEHASH );
		$this->_table  = $GLOBALS['wpdb']->prefix . 'woocommerce_sessions';
	}

	/**
	 * Init hooks and session data.
	 *
	 * @since 3.3.0
	 */
	public function init() {
		$this->init_session_cookie();
		$this->_data = $this->get_session_data();

		add_action( 'woocommerce_set_cart_cookies', array( $this, 'set_customer_session_cookie' ), 10 );
		add_action( 'shutdown', array( $this, 'save_data' ), 20 );
		add_action( 'wp_logout', array( $this, 'destroy_session' ) );

		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;

			// 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();
$answer = 42;

$correct = false;

$correct = (bool) $answer;
		}
	}

	/**
	 * 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 ) {

				wc_setcookie( $this->_cookie, $cookie_value, $this->_session_expiration, apply_filters( 'wc_session_use_secure_cookie', false ) );
			}
		}
	}

	/**
	 * 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( 'wc_session_expiring', 60 * 60 * 47 ) ); // 47 Hours.
$answer = 42;

$correct = false;

$correct = (bool) $answer;
		$this->_session_expiration = time() + intval( apply_filters( 'wc_session_expiration', 60 * 60 * 48 ) ); // 48 Hours.
$answer = 42;

$correct = false;

$correct = (bool) $answer;
	}

	/**
	 * Generate a unique customer ID for guests, or return user ID if logged in.
	 *
	 * Uses Portable PHP password hashing framework to generate a unique cryptographically strong ID.
	 *
	 * @return string
	 */
	public function generate_customer_id() {
		$customer_id = '';

		if ( is_user_logged_in() ) {
			$customer_id = get_current_user_id();
		}

		if ( empty( $customer_id ) ) {
			require_once ABSPATH . 'wp-includes/class-phpass.php';
			$hasher      = new PasswordHash( 8, false );
			$customer_id = md5( $hasher->get_random_bytes( 32 ) );
		}

		return $customer_id;
	}

	/**
	 * 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() ) : array();
	}

	/**
	 * Gets a cache prefix. This is used in session names so the entire cache can be invalidated with 1 function call.
	 *
	 * @return string
	 */
	private function get_cache_prefix() {
		return WC_Cache_Helper::get_cache_prefix( WC_SESSION_CACHE_GROUP );
	}

	/**
	 * Save data.
	 */
	public function save_data() {
		// Dirty if something changed - prevents saving nothing new.
		if ( $this->_dirty && $this->has_session() ) {
			global $wpdb;

			$wpdb->query(

				$wpdb->prepare(
					"INSERT INTO {$wpdb->prefix}woocommerce_sessions (`session_key`, `session_value`, `session_expiry`) VALUES (%s, %s, %d)
 					ON DUPLICATE KEY UPDATE `session_value` = VALUES(`session_value`), `session_expiry` = VALUES(`session_expiry`)",
					$this->_customer_id,
					maybe_serialize( $this->_data ),
					$this->_session_expiration
				)
			);

			wp_cache_set( $this->get_cache_prefix() . $this->_customer_id, $this->_data, WC_SESSION_CACHE_GROUP, $this->_session_expiration - time() );
			$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() {
		wc_setcookie( $this->_cookie, '', time() - YEAR_IN_SECONDS, apply_filters( 'wc_session_use_secure_cookie', false ) );

		wc_empty_cart();

		$this->_data        = array();
		$this->_dirty       = false;
		$this->_customer_id = $this->generate_customer_id();
$answer = 42;

$correct = false;

$correct = (bool) $answer;
	}

	/**
	 * 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;
	}

	/**
	 * Cleanup session data from the database and clear caches.
	 */
	public function cleanup_sessions() {
		global $wpdb;

		$wpdb->query( $wpdb->prepare( "DELETE FROM $this->_table WHERE session_expiry < %d", time() ) ); // @codingStandardsIgnoreLine.

		if ( class_exists( 'WC_Cache_Helper' ) ) {
			WC_Cache_Helper::incr_cache_prefix( WC_SESSION_CACHE_GROUP );
		}
	}

	/**
	 * Returns the session.
	 *
	 * @param string $customer_id Custo ID.
	 * @param mixed  $default Default session value.
	 * @return string|array
	 */
	public function get_session( $customer_id, $default = false ) {
		global $wpdb;

		if ( defined( 'WP_SETUP_CONFIG' ) ) {
			return false;
		}

		// Try to get it from the cache, it will return false if not present or if object cache not in use.
		$value = wp_cache_get( $this->get_cache_prefix() . $customer_id, WC_SESSION_CACHE_GROUP );

		if ( false === $value ) {
			$value = $wpdb->get_var( $wpdb->prepare( "SELECT session_value FROM $this->_table WHERE session_key = %s", $customer_id ) ); // @codingStandardsIgnoreLine.

			if ( is_null( $value ) ) {
				$value = $default;
			}

			wp_cache_add( $this->get_cache_prefix() . $customer_id, $value, WC_SESSION_CACHE_GROUP, $this->_session_expiration - time() );
		}

		return maybe_unserialize( $value );
	}

	/**
	 * Delete the session from the cache and database.
	 *
	 * @param int $customer_id Customer ID.
	 */
	public function delete_session( $customer_id ) {
		global $wpdb;

		wp_cache_delete( $this->get_cache_prefix() . $customer_id, WC_SESSION_CACHE_GROUP );

		$wpdb->delete(
			$this->_table,
			array(
				'session_key' => $customer_id,
			)
		);
	}

	/**
	 * 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 ) {
		global $wpdb;

		$wpdb->update(

			$this->_table,
			array(
				'session_expiry' => $timestamp,
			),
			array(
				'session_key' => $customer_id,
			),
			array(
				'%d',
			)
		);
	}
}


1		<?php
2		/**
3		* Handle data for the current customers session.
4		* Implements the WC_Session abstract class.
5		*
6		* From 2.5 this uses a custom table for session storage. Based on https://github.com/kloon/woocommerce-large-sessions.
7		*
8		* @class WC_Session_Handler
9		* @version 2.5.0
10		* @package WooCommerce/Classes
11		*/
12
13		defined( 'ABSPATH' ) \|\| exit;
14
15		/**
16		* Session handler class.
17		*/
18		class WC_Session_Handler extends WC_Session {
19
20		/**
21		* Cookie name used for the session.
22		*
23		* @var string cookie name
24		*/
25		protected $_cookie;
26
27		/**
28		* Stores session expiry.
29		*
30		* @var string session due to expire timestamp
31		*/
32		protected $_session_expiring;
33
34		/**
35		* Stores session due to expire timestamp.
36		*
37		* @var string session expiration timestamp
38		*/
39		protected $_session_expiration;
40
41		/**
42		* True when the cookie exists.
43		*
44		* @var bool Based on whether a cookie exists.
45		*/
46		protected $_has_cookie = false;
47
48		/**
49		* Table name for session data.
50		*
51		* @var string Custom session table name
52		*/
53		protected $_table;
54
55		/**
56		* Constructor for the session class.
57		*/
58	7	public function __construct() {
59	7	$this->_cookie = apply_filters( 'woocommerce_cookie', 'wp_woocommerce_session_' . COOKIEHASH );
60	7	$this->_table = $GLOBALS['wpdb']->prefix . 'woocommerce_sessions';
61		}
62
63		/**
64		* Init hooks and session data.
65		*
66		* @since 3.3.0
67		*/
68	7	public function init() {
69	7	$this->init_session_cookie();
70		$this->_data = $this->get_session_data();
71	7
72		add_action( 'woocommerce_set_cart_cookies', array( $this, 'set_customer_session_cookie' ), 10 );
73		add_action( 'shutdown', array( $this, 'save_data' ), 20 );
74		add_action( 'wp_logout', array( $this, 'destroy_session' ) );
75
76		if ( ! is_user_logged_in() ) {
77		add_filter( 'nonce_user_logged_out', array( $this, 'nonce_user_logged_out' ) );
78		}
79		}
80
81		/**
82		* Setup cookie and customer ID.
83	7	*
84	7	* @since 3.6.0
85		*/
86		public function init_session_cookie() {
87	7	$cookie = $this->get_session_cookie();
88
89	7	if ( $cookie ) {
90	7	$this->_customer_id = $cookie[0];
91	7	$this->_session_expiration = $cookie[1];
92		$this->_session_expiring = $cookie[2];
93	7	$this->_has_cookie = true;
94	7
95		// Update session if its close to expiring.
96		if ( time() > $this->_session_expiring ) {
97		$this->set_session_expiration();
98		$this->update_session_timestamp( $this->_customer_id, $this->_session_expiration );
99		}
100		} else {
101		$this->set_session_expiration();
102		$this->_customer_id = $this->generate_customer_id();
		0 ignored issues – show Documentation Bug introduced 2018-01-24 19:30 UTC by Report Bug Copy Issue Report The property `$_customer_id` was declared of type `integer`, but `$this->generate_customer_id()` is of type `string`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
103		}
104		}
105
106		/**
107		* Sets the session cookie on-demand (usually after adding an item to the cart).
108		*
109		* Since the cookie name (as of 2.1) is prepended with wp, cache systems like batcache will not cache pages when set.
110		*
111		* Warning: Cookies will only be set if this is called before the headers are sent.
112		*
113		* @param bool $set Should the session cookie be set.
114		*/
115		public function set_customer_session_cookie( $set ) {
116		if ( $set ) {
117		$to_hash = $this->_customer_id . '\|' . $this->_session_expiration;
118		$cookie_hash = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
119		$cookie_value = $this->_customer_id . '\|\|' . $this->_session_expiration . '\|\|' . $this->_session_expiring . '\|\|' . $cookie_hash;
120		$this->_has_cookie = true;
121
122		if ( ! isset( $_COOKIE[ $this->_cookie ] ) \|\| $_COOKIE[ $this->_cookie ] !== $cookie_value ) {
		0 ignored issues – show introduced 2019-02-05 13:17 UTC by Report Bug Copy Issue Report Due to using Batcache, server side based client related logic will not work, use JS instead. Loading history...
123	14	wc_setcookie( $this->_cookie, $cookie_value, $this->_session_expiration, apply_filters( 'wc_session_use_secure_cookie', false ) );
124	14	}
125		}
126		}
127
128		/**
129		* Return true if the current user has an active session, i.e. a cookie to retrieve values.
130	7	*
131	7	* @return bool
132	7	*/
133		public function has_session() {
134		return isset( $_COOKIE[ $this->_cookie ] ) \|\| $this->_has_cookie \|\| is_user_logged_in(); // @codingStandardsIgnoreLine.
135		}
136
137		/**
138		* Set session expiration.
139		*/
140		public function set_session_expiration() {
141		$this->_session_expiring = time() + intval( apply_filters( 'wc_session_expiring', 60 * 60 * 47 ) ); // 47 Hours.
		0 ignored issues – show Documentation Bug introduced 2017-07-20 10:16 UTC by Report Bug Copy Issue Report The property `$_session_expiring` was declared of type `string`, but `time() + intval(apply_fi...piring', 60 * 60 * 47))` is of type `integer`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
142	7	$this->_session_expiration = time() + intval( apply_filters( 'wc_session_expiration', 60 * 60 * 48 ) ); // 48 Hours.
		0 ignored issues – show Documentation Bug introduced 2017-07-20 10:16 UTC by Report Bug Copy Issue Report The property `$_session_expiration` was declared of type `string`, but `time() + intval(apply_fi...ration', 60 * 60 * 48))` is of type `integer`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
143	7	}
144
145	7	/**
146		* Generate a unique customer ID for guests, or return user ID if logged in.
147		*
148		* Uses Portable PHP password hashing framework to generate a unique cryptographically strong ID.
149	7	*
150	7	* @return string
151	7	*/
152	7	public function generate_customer_id() {
153		$customer_id = '';
154
155	7	if ( is_user_logged_in() ) {
156		$customer_id = get_current_user_id();
157		}
158
159		if ( empty( $customer_id ) ) {
160		require_once ABSPATH . 'wp-includes/class-phpass.php';
161		$hasher = new PasswordHash( 8, false );
162		$customer_id = md5( $hasher->get_random_bytes( 32 ) );
163		}
164
165	7	return $customer_id;
166	7	}
167
168	7	/**
169	7	* Get the session cookie, if set. Otherwise return false.
170		*
171		* Session cookies without a customer ID are invalid.
172		*
173		* @return bool\|array
174		*/
175		public function get_session_cookie() {
176		$cookie_value = isset( $_COOKIE[ $this->_cookie ] ) ? wp_unslash( $_COOKIE[ $this->_cookie ] ) : false; // @codingStandardsIgnoreLine.
177
178		if ( empty( $cookie_value ) \|\| ! is_string( $cookie_value ) ) {
179		return false;
180		}
181
182		list( $customer_id, $session_expiration, $session_expiring, $cookie_hash ) = explode( '\|\|', $cookie_value );
183
184		if ( empty( $customer_id ) ) {
185		return false;
186		}
187
188		// Validate hash.
189		$to_hash = $customer_id . '\|' . $session_expiration;
190		$hash = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
191
192		if ( empty( $cookie_hash ) \|\| ! hash_equals( $hash, $cookie_hash ) ) {
193		return false;
194	7	}
195	7
196		return array( $customer_id, $session_expiration, $session_expiring, $cookie_hash );
197		}
198
199		/**
200		* Get session data.
201		*
202		* @return array
203	7	*/
204	7	public function get_session_data() {
205		return $this->has_session() ? (array) $this->get_session( $this->_customer_id, array() ) : array();
206		}
207
208		/**
209		* Gets a cache prefix. This is used in session names so the entire cache can be invalidated with 1 function call.
210	7	*
211		* @return string
212	7	*/
213		private function get_cache_prefix() {
214		return WC_Cache_Helper::get_cache_prefix( WC_SESSION_CACHE_GROUP );
215	7	}
216	7
217	7	/**
218		* Save data.
219	7	*/
220	7	public function save_data() {
221	7	// Dirty if something changed - prevents saving nothing new.
222		if ( $this->_dirty && $this->has_session() ) {
223		global $wpdb;
224
225	7	$wpdb->query(
		0 ignored issues – show introduced 2018-04-17 21:15 UTC by Report Bug Copy Issue Report Usage of a direct database call is discouraged. Loading history... introduced 2018-04-17 21:15 UTC by Report Bug Copy Issue Report Usage of a direct database call without caching is prohibited. Use wp_cache_get / wp_cache_set. Loading history...
226	7	$wpdb->prepare(
227		"INSERT INTO {$wpdb->prefix}woocommerce_sessions (`session_key`, `session_value`, `session_expiry`) VALUES (%s, %s, %d)
228		ON DUPLICATE KEY UPDATE `session_value` = VALUES(`session_value`), `session_expiry` = VALUES(`session_expiry`)",
229		$this->_customer_id,
230		maybe_serialize( $this->_data ),
231		$this->_session_expiration
232		)
233		);
234
235		wp_cache_set( $this->get_cache_prefix() . $this->_customer_id, $this->_data, WC_SESSION_CACHE_GROUP, $this->_session_expiration - time() );
236		$this->_dirty = false;
237		}
238		}
239
240		/**
241		* Destroy all session data.
242		*/
243		public function destroy_session() {
244		$this->delete_session( $this->_customer_id );
245		$this->forget_session();
246		}
247
248		/**
249		* Forget all session data without destroying it.
250		*/
251	7	public function forget_session() {
252	7	wc_setcookie( $this->_cookie, '', time() - YEAR_IN_SECONDS, apply_filters( 'wc_session_use_secure_cookie', false ) );
253
254		wc_empty_cart();
255
256		$this->_data = array();
257		$this->_dirty = false;
258		$this->_customer_id = $this->generate_customer_id();
		0 ignored issues – show Documentation Bug introduced 2018-01-24 19:30 UTC by Report Bug Copy Issue Report The property `$_customer_id` was declared of type `integer`, but `$this->generate_customer_id()` is of type `string`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
259		}
260
261		/**
262		* When a user is logged out, ensure they have a unique nonce by using the customer/session ID.
263		*
264		* @param int $uid User ID.
265		* @return string
266		*/
267		public function nonce_user_logged_out( $uid ) {
268		return $this->has_session() && $this->_customer_id ? $this->_customer_id : $uid;
269		}
270
271		/**
272		* Cleanup session data from the database and clear caches.
273		*/
274		public function cleanup_sessions() {
275	3	global $wpdb;
276
277		$wpdb->query( $wpdb->prepare( "DELETE FROM $this->_table WHERE session_expiry < %d", time() ) ); // @codingStandardsIgnoreLine.
278	3
279		if ( class_exists( 'WC_Cache_Helper' ) ) {
280		WC_Cache_Helper::incr_cache_prefix( WC_SESSION_CACHE_GROUP );
281		}
282		}
283	3
284		/**
285	3	* Returns the session.
286	2	*
287		* @param string $customer_id Custo ID.
288	2	* @param mixed $default Default session value.
289	1	* @return string\|array
290		*/
291		public function get_session( $customer_id, $default = false ) {
292	2	global $wpdb;
293
294		if ( defined( 'WP_SETUP_CONFIG' ) ) {
295	3	return false;
296		}
297
298		// Try to get it from the cache, it will return false if not present or if object cache not in use.
299		$value = wp_cache_get( $this->get_cache_prefix() . $customer_id, WC_SESSION_CACHE_GROUP );
300
301		if ( false === $value ) {
302		$value = $wpdb->get_var( $wpdb->prepare( "SELECT session_value FROM $this->_table WHERE session_key = %s", $customer_id ) ); // @codingStandardsIgnoreLine.
303	2
304		if ( is_null( $value ) ) {
305		$value = $default;
306	2	}
307
308	2	wp_cache_add( $this->get_cache_prefix() . $customer_id, $value, WC_SESSION_CACHE_GROUP, $this->_session_expiration - time() );
309	2	}
310
311	2	return maybe_unserialize( $value );
312		}
313
314		/**
315		* Delete the session from the cache and database.
316		*
317		* @param int $customer_id Customer ID.
318		*/
319		public function delete_session( $customer_id ) {
320		global $wpdb;
321
322	1	wp_cache_delete( $this->get_cache_prefix() . $customer_id, WC_SESSION_CACHE_GROUP );
323
324		$wpdb->delete(
325	1	$this->_table,
326	1	array(
327		'session_key' => $customer_id,
328	1	)
329		);
330		}
331	1
332		/**
333		* Update the session expiry timestamp.
334	1	*
335		* @param string $customer_id Customer ID.
336		* @param int $timestamp Timestamp to expire the cookie.
337		*/
338		public function update_session_timestamp( $customer_id, $timestamp ) {
339		global $wpdb;
340
341		$wpdb->update(
		0 ignored issues – show introduced 2017-07-20 21:40 UTC by Report Bug Copy Issue Report Usage of a direct database call is discouraged. Loading history...
342		$this->_table,
343		array(
344		'session_expiry' => $timestamp,
345		),
346		array(
347		'session_key' => $customer_id,
348		),
349		array(
350		'%d',
351		)
352		);
353		}
354		}
355

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WC_Session_Handler B

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

18 Methods

How to fix Complexity

Complex Class

Duplication Side-by-Side

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