modules/mongodb_session/mongodb_session.inc::drupal_session_regenerate() - Code Metrics - Inspection of "f" - FGM/mongodb - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — 8.x-2.x ( 0cda8a...8af97d )

by Frédéric G.

created 2016-06-24 11:28 UTC

modules/mongodb_session/mongodb_session.inc::drupal_session_regenerate() D

↳ Parent: Project

Complexity

Conditions	10
Paths	60

Size

Total Lines	38
Code Lines	24

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	10
eloc	24
c	1
b	0
f	0
nc	60
nop	0
dl	0
loc	38
rs	4.8196

How to fix Complexity

<?php
if (!function_exists('_drupal_session_open')) {
  include_once dirname(__FILE__) . '/../mongodb_module.php';

/**
 * @file
 * User session handling functions.
 *
 * The user-level session storage handlers:
 * - _drupal_session_open()
 * - _drupal_session_close()
 * - _drupal_session_read()
 * - _drupal_session_write()
 * - _drupal_session_destroy()
 * - _drupal_session_garbage_collection()
 * are assigned by session_set_save_handler() in bootstrap.inc and are called
 * automatically by PHP. These functions should not be called directly. Session
 * data should instead be accessed via the $_SESSION superglobal.
 */


/**
 * Session handler assigned by session_set_save_handler().
 *
 * This function is used to handle any initialization, such as file paths or
 * database connections, that is needed before accessing session data. Drupal
 * does not need to initialize anything in this function.
 *
 * This function should not be called directly.
 *
 * @return boolean
 *   This function will always return TRUE.
 */
function _drupal_session_open() {
  return TRUE;
}

/**
 * Session handler assigned by session_set_save_handler().
 *
 * This function is used to close the current session. Because Drupal stores
 * session data in the database immediately on write, this function does
 * not need to do anything.
 *
 * This function should not be called directly.
 *
 * @return boolean
 *   This function will always return TRUE.
 */
function _drupal_session_close() {
  return TRUE;
}

/**
 * Session handler assigned by session_set_save_handler().
 *
 * This function will be called by PHP to retrieve the current user's
 * session data, which is stored in the database. It also loads the
 * current user's appropriate roles into the user object.
 *
 * This function should not be called directly. Session data should
 * instead be accessed via the $_SESSION superglobal.
 *
 * @param string $sid
 *   Session ID.
 *
 * @return array|string
 *   Either an array of the session data, or an empty string, if no data
 *   was found or the user is anonymous.
 */
function _drupal_session_read($sid) {
  global $user, $is_https;

  // Write and Close handlers are called after destructing objects
  // since PHP 5.0.5.
  // Thus destructors can use sessions but session handler can't use objects.
  // So we are moving session closure before destructing objects.
  register_shutdown_function('session_write_close');

  // Handle the case of first time visitors and clients that don't store
  // cookies (eg. web crawlers).
  $insecure_session_name = substr(session_name(), 1);
  if (empty($sid) || (!isset($_COOKIE[session_name()]) && !isset($_COOKIE[$insecure_session_name]))) {
    $user = drupal_anonymous_user();
    return '';
  }

  // Otherwise, if the session is still active, we have a record of the
  // client's session in the database. If it's HTTPS then we are either have
  // a HTTPS session or we are about to log in so we check the sessions table
  // for an anonymous session wth the non-HTTPS-only cookie.
  $collection = mongodb_collection(variable_get('mongodb_session', 'session'));
  if ($is_https) {
    $session = $collection->findOne(array('ssid' => $sid));
    if (!$session) {
      if (isset($_COOKIE[$insecure_session_name])) {
        $session = $collection->findOne(array('sid' => $_COOKIE[$insecure_session_name], 'uid' => 0));
      }
    }
  }
  else {
    $session = $collection->findOne(array('sid' => $sid));
  }
  $collection = mongodb_collection('fields_current', 'user');
  $user = (object) $collection->findOne(array('_id' => $session['uid']));

  if (!isset($user->uid)) {
    $user = db_query("SELECT * FROM {users} u WHERE uid = :uid", array(':uid' => $session['uid']))->fetchObject();
    // Add roles element to $user and insert an entry into fields_current.user
    // so next time we get it from Mongo.
    include_once dirname(__FILE__) . '/mongodb_session.module';
    $user->roles = array();
    $user->roles = mongodb_session_user_insert(array(), $user);
  }
  // We found the client's session record and they are an authenticated,
  // active user.
  if ($session && !empty($session['uid']) && $user->status == 1) {
    $user->session = $session['session'];
  }
  // We didn't find the client's record (session has expired), or they are
  // blocked, or they are an anonymous user.
  else {
    $user = drupal_anonymous_user();
    $user->session = !empty($session['session']) ? $session['session'] : '';
  }

  return $user->session;
}

/**
 * Session handler assigned by session_set_save_handler().
 *
 * This function will be called by PHP to store the current user's
 * session, which Drupal saves to the database.
 *
 * This function should not be called directly. Session data should
 * instead be accessed via the $_SESSION superglobal.
 *
 * @param string $sid
 *   Session ID.
 * @param array $value
 *   Serialized array of the session data.
 *
 * @return boolean
 *   This function will always return TRUE.
 */
function _drupal_session_write($sid, $value) {
  global $user, $is_https;

  if (!drupal_save_session()) {
    // We don't have anything to do if we are not allowed to save the session.
    return;
  }

  $fields = array(
    'uid' => (int) $user->uid,
    'cache' => isset($user->cache) ? (int) $user->cache : 0,
    'hostname' => ip_address(),
    'session' => $value,
    'timestamp' => REQUEST_TIME,
  );
  $key = array('sid' => $sid);
  if ($is_https) {
    $key['ssid'] = $sid;
    $insecure_session_name = substr(session_name(), 1);
    // The "secure pages" setting allows a site to simultaneously use both
    // secure and insecure session cookies. If enabled, use the insecure session
    // identifier as the sid.
    if (variable_get('https', FALSE) && isset($_COOKIE[$insecure_session_name])) {
      $key['sid'] = $_COOKIE[$insecure_session_name];
    }
    else {
      unset($key['sid']);
    }
  }
  elseif (variable_get('https', FALSE)) {
    unset($key['ssid']);
  }

  $collection = mongodb_collection(variable_get('mongodb_session', 'session'));
  $collection
    ->update($key, $key + $fields, array('upsert' => TRUE) + mongodb_default_write_options(FALSE));

  // Last access time is updated no more frequently than once every 180 seconds.
  // This reduces contention in the users table.
  if ($user->uid && REQUEST_TIME - $user->access > variable_get('session_write_interval', 180)) {
    $fields = array(
      'access' => REQUEST_TIME,
    );
    // Update SQL because user_load() falls back to that.
    db_update('users')
      ->fields($fields)
      ->condition('uid', $user->uid)
      ->execute();
    // Update MongoDB because we prefer that.
    mongodb_collection('fields_current', 'user')->update(array('_id' => (int) $user->uid), array('$set' => $fields), mongodb_default_write_options(FALSE));
    // Throw a bone to entitycache, too.
    if (variable_get('entitycache_enabled', FALSE)) {
      cache_clear_all($user->uid, 'cache_entity_user');
    }
  }

  return TRUE;
}

/**
 * Initialize the session handler, starting a session if needed.
 */
function drupal_session_initialize() {
  global $user, $is_https;

  session_set_save_handler('_drupal_session_open', '_drupal_session_close', '_drupal_session_read', '_drupal_session_write', '_drupal_session_destroy', '_drupal_session_garbage_collection');

  if (isset($_COOKIE[session_name()])) {
    // If a session cookie exists, initialize the session. Otherwise the
    // session is only started on demand in drupal_session_commit(), making
    // anonymous users not use a session cookie unless something is stored in
    // $_SESSION. This allows HTTP proxies to cache anonymous pageviews.
    drupal_session_start();
    if (!empty($user->uid) || !empty($_SESSION)) {
      drupal_page_is_cacheable(FALSE);
    }
  }
  else {
    // Set a session identifier for this request. This is necessary because
    // we lazyly start sessions at the end of this request, and some
    // processes (like drupal_get_token()) needs to know the future
    // session ID in advance.
    $GLOBALS['lazy_session'] = TRUE;
    $user = drupal_anonymous_user();
    // Less random sessions (which are much faster to generate) are used for
    // anonymous users than are generated in drupal_session_regenerate() when
    // a user becomes authenticated.
    session_id(md5(uniqid('', TRUE)));
    if ($is_https && variable_get('https', FALSE)) {
      $insecure_session_name = substr(session_name(), 1);
      $session_id = drupal_hash_base64(uniqid(mt_rand(), TRUE));
      $_COOKIE[$insecure_session_name] = $session_id;
    }
  }
  date_default_timezone_set(drupal_get_user_timezone());
}

/**
 * Forcefully start a session, preserving already set session data.
 *
 * @ingroup php_wrappers
 */
function drupal_session_start() {
  if (!drupal_session_started()) {
    // Save current session data before starting it, as PHP will destroy it.
    $session_data = isset($_SESSION) ? $_SESSION : NULL;

    session_start();
    drupal_session_started(TRUE);

    // Restore session data.
    if (!empty($session_data)) {
      $_SESSION += $session_data;
    }
  }
}

/**
 * Commit the current session, if necessary.
 *
 * If an anonymous user already have an empty session, destroy it.
 */
function drupal_session_commit() {
  global $user, $is_https;

  if (!drupal_save_session()) {
    // We don't have anything to do if we are not allowed to save the session.
    return;
  }

  if (empty($user->uid) && empty($_SESSION)) {
    // There is no session data to store, destroy the session if it was
    // previously started.
    if (drupal_session_started()) {
      session_destroy();
    }
  }
  else {
    // There is session data to store. Start the session if it is not already
    // started.
    if (!drupal_session_started()) {
      drupal_session_start();
      if ($is_https && variable_get('https', FALSE)) {
        $insecure_session_name = substr(session_name(), 1);
        $params = session_get_cookie_params();
        $expire = $params['lifetime'] ? REQUEST_TIME + $params['lifetime'] : 0;
        setcookie($insecure_session_name, $_COOKIE[$insecure_session_name], $expire, $params['path'], $params['domain'], FALSE, $params['httponly']);
      }
    }
    // Write the session data.
    session_write_close();
  }
}

/**
 * Return whether a session has been started.
 */
function drupal_session_started($set = NULL) {
  static $session_started = FALSE;
  if (isset($set)) {
    $session_started = $set;
  }
  return $session_started && session_id();
}

/**
 * Called when an anonymous user becomes authenticated or vice-versa.
 *
 * @ingroup php_wrappers
 */
function drupal_session_regenerate() {
  global $user, $is_https;
  if ($is_https && variable_get('https', FALSE)) {
    $insecure_session_name = substr(session_name(), 1);
    if (!isset($GLOBALS['lazy_session']) && isset($_COOKIE[$insecure_session_name])) {
      $old_insecure_session_id = $_COOKIE[$insecure_session_name];
    }
    $params = session_get_cookie_params();
    $session_id = drupal_hash_base64(uniqid(mt_rand(), TRUE) . drupal_random_bytes(55));
    // If a session cookie lifetime is set, the session will expire
    // $params['lifetime'] seconds from the current request. If it is not set,
    // it will expire when the browser is closed.
    $expire = $params['lifetime'] ? REQUEST_TIME + $params['lifetime'] : 0;
    setcookie($insecure_session_name, $session_id, $expire, $params['path'], $params['domain'], FALSE, $params['httponly']);
    $_COOKIE[$insecure_session_name] = $session_id;
  }

  if (drupal_session_started()) {
    $old_session_id = session_id();
    session_regenerate_id();
  }
  else {
    // Start the session when it doesn't exist yet.
    // Preserve the logged in user, as it will be reset to anonymous
    // by _drupal_session_read.
    $account = $user;
    drupal_session_start();
    $user = $account;
  }
  if (isset($user->timezone)) {
    date_default_timezone_set(drupal_get_user_timezone());
  }
  if (isset($old_session_id)) {
    $field = $is_https ? 'ssid' : 'sid';
    mongodb_collection(variable_get('mongodb_session', 'session'))
      ->update(array('sid' => $old_session_id), array('$set' => array($field => session_id())), mongodb_default_write_options(FALSE));
  }
}

/**
 * Session handler assigned by session_set_save_handler().
 *
 * Cleanup a specific session.
 *
 * @param string $sid
 *   Session ID.
 */
function _drupal_session_destroy($sid) {
  global $user, $is_https;

  $field = $is_https ? 'ssid' : 'sid';
  mongodb_collection(variable_get('mongodb_session', 'session'))
    ->remove(array($field => $sid), mongodb_default_write_options(FALSE));

  // Reset $_SESSION and $user to prevent a new session from being started
  // in drupal_session_commit().
  $_SESSION = array();
  $user = drupal_anonymous_user();

  // Unset the session cookies.
  _drupal_session_delete_cookie(session_name());
  if ($is_https) {
    _drupal_session_delete_cookie(substr(session_name(), 1), FALSE);
  }
  elseif (variable_get('https', FALSE)) {
    _drupal_session_delete_cookie('S' . session_name(), TRUE);
  }
}

/**
 * Deletes the session cookie.
 *
 * @param sting $name
 *   Name of session cookie to delete.
 * @param boolean $secure
 *   Force the secure value of the cookie.
 */
function _drupal_session_delete_cookie($name, $secure = NULL) {
  global $is_https;
  if (isset($_COOKIE[$name]) || (!$is_https && $secure === TRUE)) {
    $params = session_get_cookie_params();
    if ($secure !== NULL) {
      $params['secure'] = $secure;
    }
    setcookie($name, '', REQUEST_TIME - 3600, $params['path'], $params['domain'], $params['secure'], $params['httponly']);
    unset($_COOKIE[$name]);
  }
}

/**
 * End a specific user's session(s).
 *
 * @param string $uid
 *   User ID.
 */
function drupal_session_destroy_uid($uid) {
  mongodb_collection(variable_get('mongodb_session', 'session'))
    ->remove(array('uid' => $uid), mongodb_default_write_options(FALSE));
}

/**
 * Session handler assigned by session_set_save_handler().
 *
 * Cleanup stalled sessions.
 *
 * @param int $lifetime
 *   The value of session.gc_maxlifetime, passed by PHP.
 *   Sessions not updated for more than $lifetime seconds will be removed.
 */
function _drupal_session_garbage_collection($lifetime) {
  // Be sure to adjust 'php_value session.gc_maxlifetime' to a large enough
  // value. For example, if you want user sessions to stay in your database
  // for three weeks before deleting them, you need to set gc_maxlifetime
  // to '1814400'. At that value, only after a user doesn't log in after
  // three weeks (1814400 seconds) will his/her session be removed.
  mongodb_collection(variable_get('mongodb_session', 'session'))
    ->remove(array('timestamp' => array('$lt' => REQUEST_TIME - $lifetime)), mongodb_default_write_options(FALSE));
  return TRUE;
}

/**
 * Determine whether to save session data of the current request.
 *
 * This function allows the caller to temporarily disable writing of
 * session data, should the request end while performing potentially
 * dangerous operations, such as manipulating the global $user object.
 * See http://drupal.org/node/218104 for usage.
 *
 * @param boolean $status
 *   Disables writing of session data when FALSE, (re-)enables
 *   writing when TRUE.
 *
 * @return boolean
 *   FALSE if writing session data has been disabled. Otherwise, TRUE.
 */
function drupal_save_session($status = NULL) {
  $save_session = &drupal_static(__FUNCTION__, TRUE);
  if (isset($status)) {
    $save_session = $status;
  }
  return $save_session;
}

}


1			<?php
2			if (!function_exists('_drupal_session_open')) {
3			include_once dirname(__FILE__) . '/../mongodb_module.php';
4
5			/**
6			* @file
7			* User session handling functions.
8			*
9			* The user-level session storage handlers:
10			* - _drupal_session_open()
11			* - _drupal_session_close()
12			* - _drupal_session_read()
13			* - _drupal_session_write()
14			* - _drupal_session_destroy()
15			* - _drupal_session_garbage_collection()
16			* are assigned by session_set_save_handler() in bootstrap.inc and are called
17			* automatically by PHP. These functions should not be called directly. Session
18			* data should instead be accessed via the $_SESSION superglobal.
19			*/
20
21
22			/**
23			* Session handler assigned by session_set_save_handler().
24			*
25			* This function is used to handle any initialization, such as file paths or
26			* database connections, that is needed before accessing session data. Drupal
27			* does not need to initialize anything in this function.
28			*
29			* This function should not be called directly.
30			*
31			* @return boolean
32			* This function will always return TRUE.
33			*/
34			function _drupal_session_open() {
35			return TRUE;
36			}
37
38			/**
39			* Session handler assigned by session_set_save_handler().
40			*
41			* This function is used to close the current session. Because Drupal stores
42			* session data in the database immediately on write, this function does
43			* not need to do anything.
44			*
45			* This function should not be called directly.
46			*
47			* @return boolean
48			* This function will always return TRUE.
49			*/
50			function _drupal_session_close() {
51			return TRUE;
52			}
53
54			/**
55			* Session handler assigned by session_set_save_handler().
56			*
57			* This function will be called by PHP to retrieve the current user's
58			* session data, which is stored in the database. It also loads the
59			* current user's appropriate roles into the user object.
60			*
61			* This function should not be called directly. Session data should
62			* instead be accessed via the $_SESSION superglobal.
63			*
64			* @param string $sid
65			* Session ID.
66			*
67			* @return array\|string
68			* Either an array of the session data, or an empty string, if no data
69			* was found or the user is anonymous.
70			*/
71			function _drupal_session_read($sid) {
72			global $user, $is_https;
73
74			// Write and Close handlers are called after destructing objects
75			// since PHP 5.0.5.
76			// Thus destructors can use sessions but session handler can't use objects.
77			// So we are moving session closure before destructing objects.
78			register_shutdown_function('session_write_close');
79
80			// Handle the case of first time visitors and clients that don't store
81			// cookies (eg. web crawlers).
82			$insecure_session_name = substr(session_name(), 1);
83			if (empty($sid) \|\| (!isset($_COOKIE[session_name()]) && !isset($_COOKIE[$insecure_session_name]))) {
84			$user = drupal_anonymous_user();
85			return '';
86			}
87
88			// Otherwise, if the session is still active, we have a record of the
89			// client's session in the database. If it's HTTPS then we are either have
90			// a HTTPS session or we are about to log in so we check the sessions table
91			// for an anonymous session wth the non-HTTPS-only cookie.
92			$collection = mongodb_collection(variable_get('mongodb_session', 'session'));
93			if ($is_https) {
94			$session = $collection->findOne(array('ssid' => $sid));
95			if (!$session) {
96			if (isset($_COOKIE[$insecure_session_name])) {
97			$session = $collection->findOne(array('sid' => $_COOKIE[$insecure_session_name], 'uid' => 0));
98			}
99			}
100			}
101			else {
102			$session = $collection->findOne(array('sid' => $sid));
103			}
104			$collection = mongodb_collection('fields_current', 'user');
105			$user = (object) $collection->findOne(array('_id' => $session['uid']));
106
107			if (!isset($user->uid)) {
108			$user = db_query("SELECT * FROM {users} u WHERE uid = :uid", array(':uid' => $session['uid']))->fetchObject();
109			// Add roles element to $user and insert an entry into fields_current.user
110			// so next time we get it from Mongo.
111			include_once dirname(__FILE__) . '/mongodb_session.module';
112			$user->roles = array();
113			$user->roles = mongodb_session_user_insert(array(), $user);
114			}
115			// We found the client's session record and they are an authenticated,
116			// active user.
117			if ($session && !empty($session['uid']) && $user->status == 1) {
118			$user->session = $session['session'];
119			}
120			// We didn't find the client's record (session has expired), or they are
121			// blocked, or they are an anonymous user.
122			else {
123			$user = drupal_anonymous_user();
124			$user->session = !empty($session['session']) ? $session['session'] : '';
125			}
126
127			return $user->session;
128			}
129
130			/**
131			* Session handler assigned by session_set_save_handler().
132			*
133			* This function will be called by PHP to store the current user's
134			* session, which Drupal saves to the database.
135			*
136			* This function should not be called directly. Session data should
137			* instead be accessed via the $_SESSION superglobal.
138			*
139			* @param string $sid
140			* Session ID.
141			* @param array $value
142			* Serialized array of the session data.
143			*
144			* @return boolean
145			* This function will always return TRUE.
146			*/
147			function _drupal_session_write($sid, $value) {
148			global $user, $is_https;
149
150			if (!drupal_save_session()) {
151			// We don't have anything to do if we are not allowed to save the session.
152			return;
153			}
154
155			$fields = array(
156			'uid' => (int) $user->uid,
157			'cache' => isset($user->cache) ? (int) $user->cache : 0,
158			'hostname' => ip_address(),
159			'session' => $value,
160			'timestamp' => REQUEST_TIME,
161			);
162			$key = array('sid' => $sid);
163			if ($is_https) {
164			$key['ssid'] = $sid;
165			$insecure_session_name = substr(session_name(), 1);
166			// The "secure pages" setting allows a site to simultaneously use both
167			// secure and insecure session cookies. If enabled, use the insecure session
168			// identifier as the sid.
169			if (variable_get('https', FALSE) && isset($_COOKIE[$insecure_session_name])) {
170			$key['sid'] = $_COOKIE[$insecure_session_name];
171			}
172			else {
173			unset($key['sid']);
174			}
175			}
176			elseif (variable_get('https', FALSE)) {
177			unset($key['ssid']);
178			}
179
180			$collection = mongodb_collection(variable_get('mongodb_session', 'session'));
181			$collection
182			->update($key, $key + $fields, array('upsert' => TRUE) + mongodb_default_write_options(FALSE));
183
184			// Last access time is updated no more frequently than once every 180 seconds.
185			// This reduces contention in the users table.
186			if ($user->uid && REQUEST_TIME - $user->access > variable_get('session_write_interval', 180)) {
187			$fields = array(
188			'access' => REQUEST_TIME,
189			);
190			// Update SQL because user_load() falls back to that.
191			db_update('users')
192			->fields($fields)
193			->condition('uid', $user->uid)
194			->execute();
195			// Update MongoDB because we prefer that.
196			mongodb_collection('fields_current', 'user')->update(array('_id' => (int) $user->uid), array('$set' => $fields), mongodb_default_write_options(FALSE));
197			// Throw a bone to entitycache, too.
198			if (variable_get('entitycache_enabled', FALSE)) {
199			cache_clear_all($user->uid, 'cache_entity_user');
200			}
201			}
202
203			return TRUE;
204			}
205
206			/**
207			* Initialize the session handler, starting a session if needed.
208			*/
209			function drupal_session_initialize() {
210			global $user, $is_https;
211
212			session_set_save_handler('_drupal_session_open', '_drupal_session_close', '_drupal_session_read', '_drupal_session_write', '_drupal_session_destroy', '_drupal_session_garbage_collection');
213
214			if (isset($_COOKIE[session_name()])) {
215			// If a session cookie exists, initialize the session. Otherwise the
216			// session is only started on demand in drupal_session_commit(), making
217			// anonymous users not use a session cookie unless something is stored in
218			// $_SESSION. This allows HTTP proxies to cache anonymous pageviews.
219			drupal_session_start();
220			if (!empty($user->uid) \|\| !empty($_SESSION)) {
221			drupal_page_is_cacheable(FALSE);
222			}
223			}
224			else {
225			// Set a session identifier for this request. This is necessary because
226			// we lazyly start sessions at the end of this request, and some
227			// processes (like drupal_get_token()) needs to know the future
228			// session ID in advance.
229			$GLOBALS['lazy_session'] = TRUE;
230			$user = drupal_anonymous_user();
231			// Less random sessions (which are much faster to generate) are used for
232			// anonymous users than are generated in drupal_session_regenerate() when
233			// a user becomes authenticated.
234			session_id(md5(uniqid('', TRUE)));
235			if ($is_https && variable_get('https', FALSE)) {
236			$insecure_session_name = substr(session_name(), 1);
237			$session_id = drupal_hash_base64(uniqid(mt_rand(), TRUE));
238			$_COOKIE[$insecure_session_name] = $session_id;
239			}
240			}
241			date_default_timezone_set(drupal_get_user_timezone());
242			}
243
244			/**
245			* Forcefully start a session, preserving already set session data.
246			*
247			* @ingroup php_wrappers
248			*/
249			function drupal_session_start() {
250			if (!drupal_session_started()) {
251			// Save current session data before starting it, as PHP will destroy it.
252			$session_data = isset($_SESSION) ? $_SESSION : NULL;
253
254			session_start();
255			drupal_session_started(TRUE);
256
257			// Restore session data.
258			if (!empty($session_data)) {
259			$_SESSION += $session_data;
260			}
261			}
262			}
263
264			/**
265			* Commit the current session, if necessary.
266			*
267			* If an anonymous user already have an empty session, destroy it.
268			*/
269			function drupal_session_commit() {
270			global $user, $is_https;
271
272			if (!drupal_save_session()) {
273			// We don't have anything to do if we are not allowed to save the session.
274			return;
275			}
276
277			if (empty($user->uid) && empty($_SESSION)) {
278			// There is no session data to store, destroy the session if it was
279			// previously started.
280			if (drupal_session_started()) {
281			session_destroy();
282			}
283			}
284			else {
285			// There is session data to store. Start the session if it is not already
286			// started.
287			if (!drupal_session_started()) {
288			drupal_session_start();
289			if ($is_https && variable_get('https', FALSE)) {
290			$insecure_session_name = substr(session_name(), 1);
291			$params = session_get_cookie_params();
292			$expire = $params['lifetime'] ? REQUEST_TIME + $params['lifetime'] : 0;
293			setcookie($insecure_session_name, $_COOKIE[$insecure_session_name], $expire, $params['path'], $params['domain'], FALSE, $params['httponly']);
294			}
295			}
296			// Write the session data.
297			session_write_close();
298			}
299			}
300
301			/**
302			* Return whether a session has been started.
303			*/
304			function drupal_session_started($set = NULL) {
305			static $session_started = FALSE;
306			if (isset($set)) {
307			$session_started = $set;
308			}
309			return $session_started && session_id();
310			}
311
312			/**
313			* Called when an anonymous user becomes authenticated or vice-versa.
314			*
315			* @ingroup php_wrappers
316			*/
317			function drupal_session_regenerate() {
318			global $user, $is_https;
319			if ($is_https && variable_get('https', FALSE)) {
320			$insecure_session_name = substr(session_name(), 1);
321			if (!isset($GLOBALS['lazy_session']) && isset($_COOKIE[$insecure_session_name])) {
322			$old_insecure_session_id = $_COOKIE[$insecure_session_name];
323			}
324			$params = session_get_cookie_params();
325			$session_id = drupal_hash_base64(uniqid(mt_rand(), TRUE) . drupal_random_bytes(55));
326			// If a session cookie lifetime is set, the session will expire
327			// $params['lifetime'] seconds from the current request. If it is not set,
328			// it will expire when the browser is closed.
329			$expire = $params['lifetime'] ? REQUEST_TIME + $params['lifetime'] : 0;
330			setcookie($insecure_session_name, $session_id, $expire, $params['path'], $params['domain'], FALSE, $params['httponly']);
331			$_COOKIE[$insecure_session_name] = $session_id;
332			}
333
334			if (drupal_session_started()) {
335			$old_session_id = session_id();
336			session_regenerate_id();
337			}
338			else {
339			// Start the session when it doesn't exist yet.
340			// Preserve the logged in user, as it will be reset to anonymous
341			// by _drupal_session_read.
342			$account = $user;
343			drupal_session_start();
344			$user = $account;
345			}
346			if (isset($user->timezone)) {
347			date_default_timezone_set(drupal_get_user_timezone());
348			}
349			if (isset($old_session_id)) {
350			$field = $is_https ? 'ssid' : 'sid';
351			mongodb_collection(variable_get('mongodb_session', 'session'))
352			->update(array('sid' => $old_session_id), array('$set' => array($field => session_id())), mongodb_default_write_options(FALSE));
353			}
354			}
355
356			/**
357			* Session handler assigned by session_set_save_handler().
358			*
359			* Cleanup a specific session.
360			*
361			* @param string $sid
362			* Session ID.
363			*/
364			function _drupal_session_destroy($sid) {
365			global $user, $is_https;
366
367			$field = $is_https ? 'ssid' : 'sid';
368			mongodb_collection(variable_get('mongodb_session', 'session'))
369			->remove(array($field => $sid), mongodb_default_write_options(FALSE));
370
371			// Reset $_SESSION and $user to prevent a new session from being started
372			// in drupal_session_commit().
373			$_SESSION = array();
374			$user = drupal_anonymous_user();
375
376			// Unset the session cookies.
377			_drupal_session_delete_cookie(session_name());
378			if ($is_https) {
379			_drupal_session_delete_cookie(substr(session_name(), 1), FALSE);
380			}
381			elseif (variable_get('https', FALSE)) {
382			_drupal_session_delete_cookie('S' . session_name(), TRUE);
383			}
384			}
385
386			/**
387			* Deletes the session cookie.
388			*
389			* @param sting $name
390			* Name of session cookie to delete.
391			* @param boolean $secure
392			* Force the secure value of the cookie.
393			*/
394			function _drupal_session_delete_cookie($name, $secure = NULL) {
395			global $is_https;
396			if (isset($_COOKIE[$name]) \|\| (!$is_https && $secure === TRUE)) {
397			$params = session_get_cookie_params();
398			if ($secure !== NULL) {
399			$params['secure'] = $secure;
400			}
401			setcookie($name, '', REQUEST_TIME - 3600, $params['path'], $params['domain'], $params['secure'], $params['httponly']);
402			unset($_COOKIE[$name]);
403			}
404			}
405
406			/**
407			* End a specific user's session(s).
408			*
409			* @param string $uid
410			* User ID.
411			*/
412			function drupal_session_destroy_uid($uid) {
413			mongodb_collection(variable_get('mongodb_session', 'session'))
414			->remove(array('uid' => $uid), mongodb_default_write_options(FALSE));
415			}
416
417			/**
418			* Session handler assigned by session_set_save_handler().
419			*
420			* Cleanup stalled sessions.
421			*
422			* @param int $lifetime
423			* The value of session.gc_maxlifetime, passed by PHP.
424			* Sessions not updated for more than $lifetime seconds will be removed.
425			*/
426			function _drupal_session_garbage_collection($lifetime) {
427			// Be sure to adjust 'php_value session.gc_maxlifetime' to a large enough
428			// value. For example, if you want user sessions to stay in your database
429			// for three weeks before deleting them, you need to set gc_maxlifetime
430			// to '1814400'. At that value, only after a user doesn't log in after
431			// three weeks (1814400 seconds) will his/her session be removed.
432			mongodb_collection(variable_get('mongodb_session', 'session'))
433			->remove(array('timestamp' => array('$lt' => REQUEST_TIME - $lifetime)), mongodb_default_write_options(FALSE));
434			return TRUE;
435			}
436
437			/**
438			* Determine whether to save session data of the current request.
439			*
440			* This function allows the caller to temporarily disable writing of
441			* session data, should the request end while performing potentially
442			* dangerous operations, such as manipulating the global $user object.
443			* See http://drupal.org/node/218104 for usage.
444			*
445			* @param boolean $status
446			* Disables writing of session data when FALSE, (re-)enables
447			* writing when TRUE.
448			*
449			* @return boolean
450			* FALSE if writing session data has been disabled. Otherwise, TRUE.
451			*/
452			function drupal_save_session($status = NULL) {
453			$save_session = &drupal_static(__FUNCTION__, TRUE);
454			if (isset($status)) {
455			$save_session = $status;
456			}
457			return $save_session;
458			}
459
460			}
461

FGM / mongodb

Push — 8.x-2.x ( 0cda8a...8af97d )

modules/mongodb_session/mongodb_session.inc::drupal_session_regenerate() D

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