FINAL suepr merge step : added all modules to this super repos

sites/all/modules/contrib/users/session_limit/LICENSE.txt

@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
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+Foundation's software and to any other program whose authors commit to
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+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
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+
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+
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+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

sites/all/modules/contrib/users/session_limit/README.txt

@@ -0,0 +1,47 @@
+Overview:
+---------
+The session-limit module is designed to allow an administrator to limit
+the number of simultaneous sessions a user may have.
+
+Installation and configuration:
+-------------------------------
+Installation is as simple as copying the module into your 'modules' directory,
+then enabling the module.
+
+The default max sessions is 1. Change default max sessions can be changed in
+'Configuration >> People >> Session Limit'
+The path for this is /admin/config/people/session_limit
+
+Triggers are available to assign any of the three system actions to either the
+collision or disconnect events. That includes displaying a message to the user,
+sending an email, or redirecting to a different URL.
+
+Rules events are available for collision or disconnect events.
+
+The precedence of defined session limits are:
+
+1. The user's session limit if set, otherwise,
+2. The highest session limit for a user as set on their roles, if all are set to default then
+3. The system default session_limit
+
+Optional:
+---------
+This module is able to use the token module for generating tokenized emails
+or showing tokenized messages on the collision and disconnect events.
+
+http://drupal.org/project/token
+
+If you want to customize the notices that users see, try the String Overrides
+module. Both the message for prompting to disconnect a user and the message
+that the disconnected user sees are passed through Drupal's localize t()
+function.
+
+http://drupal.org/project/stringoverrides
+
+Requires:
+---------
+ - Drupal 7.x
+
+Issue queue:
+------------
+http://drupal.org/project/issues/session_limit

sites/all/modules/contrib/users/session_limit/session_limit.api.php

@@ -0,0 +1,44 @@
+<?php
+
+/**
+ * @file
+ * This file contains no working PHP code; it exists to provide additional
+ * documentation for doxygen as well as to document hooks in the standard
+ * Drupal manner.
+ */
+
+/**
+ * Prevent session limitation checks at page load.
+ *
+ * Session limit module checks for active sessions during hook_init. If
+ * a particular path or page load or context may mean that session
+ * checks should not occur.
+ *
+ * @return bool
+ *   TRUE if the current page request should bypass session limitation
+ *   restrictions.
+ */
+function hook_session_limit_bypass() {
+  if ((arg(0) == 'session' && arg(1) == 'limit') || arg(0) == 'logout') {
+    return TRUE;
+  }
+}
+
+/**
+ * Notify other modules that a session imitation event has occured.
+ *
+ * When a session limit is reached, this hook is invoked. There are
+ * two types of event. Collision events happen when a new session
+ * causes an old session to close. Disconnect events happen when
+ * a new session is prevented by an existing session.
+ *
+ * @param string $sid
+ *   The session id of the session which caused the event. In a
+ *   collision, this is not the session which was ended.
+ * @param string $op
+ *   Either 'disconnect' or 'collision'.
+ */
+function hook_session_limit($sid, $op) {
+  global $user;
+  rules_invoke_event('session_limit_' . $op, $user, $sid);
+}

sites/all/modules/contrib/users/session_limit/session_limit.info

@@ -0,0 +1,14 @@
+name = Session Limit
+description = "Limit simultaneous user sessions."
+core = 7.x
+files[] = session_limit.install
+files[] = session_limit.module
+files[] = session_limit.tokens.inc
+files[] = tests/session_limit.test
+
+; Information added by drupal.org packaging script on 2013-07-06
+version = "7.x-2.0-rc2"
+core = "7.x"
+project = "session_limit"
+datestamp = "1373115956"
+

sites/all/modules/contrib/users/session_limit/session_limit.install

@@ -0,0 +1,18 @@
+<?php
+
+/**
+ * @file
+ * Contains install and update functions for Session Limit.
+ */
+
+/**
+ * Implements hook_uninstall().
+ */
+function session_limit_uninstall() {
+  variable_del('session_limit_max');
+  variable_del('session_limit_behaviour');
+  variable_del('session_limit_masquerade_ignore');
+  variable_del('session_limit_logged_out_message_severity');
+  variable_del('session_limit_logged_out_message');
+  db_query("DELETE FROM {variable} WHERE name LIKE 'session_limit_rid_%'");
+}

sites/all/modules/contrib/users/session_limit/session_limit.module

@@ -0,0 +1,667 @@
+<?php
+
+/**
+ * @file
+ * Limits multiple sessions per user.
+ */
+
+/**
+ * Do nothing if the session limit is exceeded.
+ */
+define('SESSION_LIMIT_DO_NOTHING', 0);
+
+/**
+ * Automatically drop sessions that would exceed the limit.
+ */
+define('SESSION_LIMIT_DROP', 1);
+
+/**
+ * Disallow sessions that would exceed the limit.
+ */
+define('SESSION_LIMIT_DISALLOW_NEW', 2);
+
+/**
+ * Default drupal_set_message type for logout message.
+ */
+define('SESSION_LIMIT_LOGGED_OUT_MESSAGE_SEVERITY', 'error');
+
+/**
+ * Default message displayed when a user is logged out.
+ */
+define('SESSION_LIMIT_LOGGED_OUT_MESSAGE', 'You have been automatically logged out. Someone else has logged in with your username and password and the maximum number of @number simultaneous sessions was exceeded. This may indicate that your account has been compromised or that account sharing is not allowed on this site. Please contact the site administrator if you suspect your account has been compromised.');
+
+/**
+ * Implements hook_help().
+ */
+function session_limit_help($path, $args) {
+  switch ($path) {
+    case 'admin/help#session_limit':
+      $output = '<p>' . t("The two major notice messages to users are passed through Drupal's t() function. This maintains locale support, allowing you to override strings in any language, but such text is also available to be changed through other modules like !stringoverridesurl.", array('!stringoverridesurl' => l('String Overrides', 'http://drupal.org/project/stringoverrides'))) . '</p>';
+      $output .= '<p>' . t("The two major strings are as follows:") . '</p>';
+      $output .= '<p><blockquote>';
+      $output .=  'The maximum number of simultaneous sessions (@number) for your account has been reached. You did not log off from a previous session or someone else is logged on to your account. This may indicate that your account has been compromised or that account sharing is limited on this site. Please contact the site administrator if you suspect your account has been compromised.';
+      $output .= '</blockquote></p><p><blockquote>';
+      $output .= 'You have been automatically logged out. Someone else has logged in with your username and password and the maximum number of @number simultaneous sessions was exceeded. This may indicate that your account has been compromised or that account sharing is not allowed on this site. Please contact the site administrator if you suspect your account has been compromised.';
+      $output .= '</blockquote></p>';
+      return $output;
+    case 'session/limit':
+      return t('The maximum number of simultaneous sessions (@number) for your account has been reached. You did not log off from a previous session or someone else is logged on to your account. This may indicate that your account has been compromised or that account sharing is limited on this site. Please contact the site administrator if you suspect your account has been compromised.', array('@number' => session_limit_user_max_sessions()));
+  }
+}
+
+/**
+ * Implements hook_permission().
+ */
+function session_limit_permission() {
+  return array(
+    'administer session limits by role' => array(
+      'title' => t('Administer session limits by role'),
+      'description' => t(''),
+    ),
+    'administer session limits per user' => array(
+      'title' => t('Administer session limits by user'),
+      'description' => t(''),
+    ),
+  );
+}
+
+/**
+ * Implements hook_menu().
+ */
+function session_limit_menu() {
+  $items['session/limit'] = array(
+    'title' => 'Session limit exceeded',
+    'page callback' => 'drupal_get_form',
+    'page arguments' => array('session_limit_page'),
+    'access callback' => 'user_is_logged_in',
+    'type' => MENU_CALLBACK,
+  );
+  $items['mysessions'] = array(
+    'title' => 'My sessions',
+    'page callback' => 'drupal_get_form',
+    'page arguments' => array('session_limit_page'),
+    'access callback' => 'user_is_logged_in',
+    'type' => MENU_SUGGESTED_ITEM,
+  );
+  $items['admin/config/people/session_limit'] = array(
+    'title' => 'Session limit',
+    'description' => 'Configure session limits.',
+    'page callback' => 'drupal_get_form',
+    'page arguments' => array('session_limit_settings'),
+    'access arguments' => array('administer site configuration'),
+    'type' => MENU_NORMAL_ITEM,
+  );
+  $items['admin/config/people/session_limit/defaults'] = array(
+    'title' => 'Defaults',
+    'page callback' => 'drupal_get_form',
+    'page arguments' => array('session_limit_settings'),
+    'access arguments' => array('administer site configuration'),
+    'type' => MENU_DEFAULT_LOCAL_TASK,
+  );
+  $items['admin/config/people/session_limit/roles'] = array(
+    'title' => 'Role limits',
+    'description' => 'Configure session limits by role.',
+    'page callback' => 'drupal_get_form',
+    'page arguments' => array('session_limit_settings_byrole'),
+    'access arguments' => array('administer session limits by role'),
+    'type' => MENU_LOCAL_TASK,
+  );
+  $items['user/%user/session_limit'] = array(
+    'title' => 'Session limit',
+    'description' => 'Configure session limit for one user.',
+    'page callback' => 'drupal_get_form',
+    'page arguments' => array('session_limit_user_settings', 1),
+    'access arguments' => array('administer session limits per user'),
+    'type' => MENU_LOCAL_TASK,
+  );
+  return $items;
+}
+
+function session_limit_settings() {
+  $form['session_limit_max'] = array(
+    '#type' => 'textfield',
+    '#title' => t('Default maximum number of active sessions'),
+    '#default_value' => variable_get('session_limit_max', 1),
+    '#size' => 2,
+    '#maxlength' => 3,
+    '#description' => t('The maximum number of active sessions a user can have. 0 implies unlimited sessions.'),
+  );
+
+  $limit_behaviours = array(
+    SESSION_LIMIT_DO_NOTHING => t('Do nothing.'),
+    SESSION_LIMIT_DROP => t('Automatically drop the oldest sessions without prompting.'),
+    SESSION_LIMIT_DISALLOW_NEW => t('Prevent new session.'),
+  );
+
+  $form['session_limit_behaviour'] = array(
+    '#type' => 'radios',
+    '#title' => t('When the session limit is exceeded'),
+    '#default_value' => variable_get('session_limit_behaviour', SESSION_LIMIT_DO_NOTHING),
+    '#options' => $limit_behaviours,
+  );
+
+  if (module_exists('masquerade')) {
+    $form['session_limit_masquerade_ignore'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Ignore masqueraded sessions.'),
+      '#description' => t("When a user administrator uses the masquerade module to impersonate a different user, it won't count against the session limit counter"),
+      '#default_value' => variable_get('session_limit_masquerade_ignore', FALSE),
+    );
+  }
+  $form['session_limit_logged_out_message_severity'] = array(
+    '#type' => 'select',
+    '#title' => t('Logged out message severity'),
+    '#default_value' => variable_get('session_limit_logged_out_message_severity', SESSION_LIMIT_LOGGED_OUT_MESSAGE_SEVERITY),
+    '#options' => array(
+      'error' => t('Error'),
+      'warning' => t('Warning'),
+      'status' => t('Status'),
+      '_none' => t('No Message'),
+    ),
+    '#description' => t('The Drupal message type.  Defaults to Error.'),
+  );
+
+  $form['session_limit_logged_out_message'] = array(
+    '#type' => 'textarea',
+    '#title' => t('Logged out message'),
+    '#default_value' => variable_get('session_limit_logged_out_message', SESSION_LIMIT_LOGGED_OUT_MESSAGE),
+    '#description' => t('The message that is displayed to a user if the workstation has been logged out.<br />
+      @number is replaced with the maximum number of simultaneous sessions.'),
+  );
+
+  return system_settings_form($form);
+}
+
+/**
+ * Settings validation form.
+ */
+function session_limit_settings_validate($form, &$form_state) {
+  $maxsessions = $form_state['values']['session_limit_max'];
+  if (!is_numeric($maxsessions)) {
+    form_set_error('session_limit_max', t('You must enter a number for the maximum number of active sessions'));
+  }
+  elseif ($maxsessions < 0) {
+    form_set_error('session_limit_max', t('Maximum number of active sessions must be positive'));
+  }
+}
+
+/**
+ * Settings by role form.
+ */
+function session_limit_settings_byrole() {
+  $result = db_select('variable', 'v')
+    ->fields('v', array('name', 'value'))
+    ->condition('name', 'session_limit_rid_%', 'LIKE')
+    ->orderBy('name')
+    ->execute();
+
+  foreach ($result as $setting) {
+    $role_limits[$setting->name] = unserialize($setting->value);
+  }
+
+  $roles = user_roles(TRUE);
+  foreach ($roles as $rid => $role) {
+    $form["session_limit_rid_$rid"] = array(
+      '#type' => 'select',
+      '#options' => _session_limit_user_options(),
+      '#title' => check_plain($role),
+      '#default_value' => empty($role_limits["session_limit_rid_$rid"]) ? 0 : $role_limits["session_limit_rid_$rid"],
+    );
+  }
+
+  $form['submit'] = array(
+    '#type' => 'submit',
+    '#value' => t('Save permissions'),
+  );
+
+  return $form;
+}
+
+/**
+ * Set session limits by role form submission.
+ */
+function session_limit_settings_byrole_submit($form, &$form_state) {
+  db_delete('variable')
+    ->condition('name', 'session_limit_rid_%', 'LIKE')
+    ->execute();
+
+  foreach ($form_state['values'] as $setting_name => $setting_limit) {
+    variable_set($setting_name, $setting_limit);
+  }
+
+  drupal_set_message(t('Role settings updated.'), 'status');
+  watchdog('session_limit', 'Role limits updated.', array(), WATCHDOG_INFO);
+}
+
+/**
+ * Implements hook_init().
+ *
+ * Determine whether session has been verified. Redirect user if over session
+ * limit. Established Sessions do NOT need to verify every page load. The new
+ * session must deal w/ determining which connection is cut.
+ *
+ * This intentionally doesn't use hook_user()'s login feature because that's
+ * only really useful if the login event always boots off at least one other
+ * active session. Doing it this way makes sure that the newest session can't
+ * browse to a different page after their login has validated.
+ */
+function session_limit_init() {
+  global $user;
+  if ($user->uid > 1 && !isset($_SESSION['session_limit'])) {
+
+    if (_session_limit_bypass()) {
+      // Bypass the session limitation on this page callback.
+      return;
+    }
+
+    $query = db_select('sessions', 's')
+      // Use distict so that HTTP and HTTPS sessions
+      // are considered a single session.
+      ->distinct()
+      ->fields('s', array('sid'))
+      ->condition('s.uid', $user->uid);
+
+    if (module_exists('masquerade') && variable_get('session_limit_masquerade_ignore', FALSE)) {
+      $query->leftJoin('masquerade', 'm', 's.uid = m.uid_as AND s.sid = m.sid');
+      $query->isNull('m.sid');
+    }
+
+    $active_sessions = $query->countQuery()->execute()->fetchField();
+    $max_sessions = session_limit_user_max_sessions();
+
+    if (!empty($max_sessions) && $active_sessions > $max_sessions) {
+      session_limit_invoke_session_limit(session_id(), 'collision');
+    }
+    else {
+      // force checking this twice as there's a race condition around session creation.
+      // see issue #1176412
+      if (!isset($_SESSION['session_limit_checkonce'])) {
+        $_SESSION['session_limit_checkonce'] = TRUE;
+      }
+      else {
+        // mark session as verified to bypass this in future.
+        $_SESSION['session_limit'] = TRUE;
+      }
+    }
+  }
+}
+
+/**
+ * Implements hook_action_info_alter().
+ */
+function session_limit_action_info_alter(&$info) {
+  if (module_exists('token_actions')) {
+    foreach ($info as $type => $data) {
+      if (stripos($type, "token_actions_") === 0 || stripos($type, "system_") === 0) {
+        if (isset($info[$type]['hooks']['session_limit'])) {
+          array_merge($info[$type]['hooks']['session_limit'], array('collision', 'disconnect'));
+        }
+        else {
+          $info[$type]['hooks']['session_limit'] = array('collision', 'disconnect');
+        }
+      }
+    }
+  }
+}
+
+/**
+ * Implements hook_user_view().
+ */
+function session_limit_user_view($account, $view_mode) {
+  if (user_access('administer session limits per user')) {
+    $account->content['session_limit'] = array(
+      '#title' => t('Session limit'),
+      '#type' => 'user_profile_category',
+      'session_limit' => array('#value' => empty($account->data['session_limit']) ? t('Default') : $account->data['session_limit'])
+    );
+  }
+}
+
+/**
+ * Session limit user settings form.
+ */
+function session_limit_user_settings($form, $form_state, $account) {
+  $form['account'] = array(
+    '#type' => 'value',
+    '#value' => $account,
+  );
+
+  $form['session_limit'] = array(
+    '#type' => 'select',
+    '#title' => t('Maximum sessions'),
+    '#description' => t('Total number simultaneous active sessions this user may have at one time. The default defers to the limits that apply to each of the user\'s roles.'),
+    '#required' => FALSE,
+    '#default_value' => empty($account->data['session_limit']) ? 0 : $account->data['session_limit'],
+    '#options' => _session_limit_user_options(),
+  );
+  $form['submit'] = array(
+    '#type' => 'submit',
+    '#value' => t('Save configuration'),
+  );
+  return $form;
+}
+
+/**
+ * Session limit user settings form validation.
+ */
+function session_limit_user_settings_validate($form, &$form_state) {
+  if (!is_numeric($form_state['values']['session_limit'])) {
+    form_set_error('session_limit', t('Only numeric submissions are valid.'));
+    watchdog('session_limit', 'Invalid session limit submission for @user.', array('@user' => $form_state['values']['account']->name), WATCHDOG_DEBUG);
+  }
+}
+
+/**
+ * Session limit user settings form submission.
+ */
+function session_limit_user_settings_submit($form, &$form_state) {
+  watchdog('session_limit', 'Maximum sessions for @user updated to @count.', array('@user' => $form_state['values']['account']->name, '@count' => $form_state['values']['session_limit']), WATCHDOG_INFO, l(t('view'), "user/{$form_state['values']['account']->uid}"));
+  if (empty($form_state['values']['session_limit'])) {
+    $form_state['values']['session_limit'] = NULL;
+  }
+  user_save($form_state['values']['account'], array('data' => array('session_limit' => $form_state['values']['session_limit'])));
+  drupal_set_message(t('Session limit updated for %user.', array('%user' => $form_state['values']['account']->name)), 'status', TRUE);
+}
+
+/**
+ * Display or delete sessions form.
+ */
+function session_limit_page() {
+  global $user;
+
+  if (variable_get('session_limit_behaviour', SESSION_LIMIT_DO_NOTHING) == SESSION_LIMIT_DISALLOW_NEW) {
+    session_destroy();
+    $user = drupal_anonymous_user();
+
+    return;
+  }
+
+  $result = db_query('SELECT * FROM {sessions} WHERE uid = :uid', array(':uid' => $user->uid));
+  foreach ($result as $obj) {
+    $message = $user->sid == $obj->sid ? t('Your current session.') : '';
+
+    $sids[$obj->sid] = t('<strong>Host:</strong> %host (idle: %time) <b>@message</b>',
+      array(
+        '%host' => $obj->hostname,
+        '@message' => $message,
+        '%time' => format_interval(time() - $obj->timestamp))
+      );
+  }
+
+  $form['sid'] = array(
+    '#type' => 'radios',
+    '#title' => t('Select a session to disconnect.'),
+    '#options' => $sids,
+  );
+
+  $form['submit'] = array(
+    '#type' => 'submit',
+    '#value' => t('Disconnect session'),
+  );
+
+  return $form;
+}
+
+/**
+ * Handler for submissions from session_limit_page().
+ */
+function session_limit_page_submit($form, &$form_state) {
+  if ($GLOBALS['user']->sid == $form_state['values']['sid']) {
+    drupal_goto('user/logout');
+  }
+  else {
+    session_limit_invoke_session_limit($form_state['values']['sid'], 'disconnect');
+    drupal_goto();
+  }
+}
+
+/**
+ * Helper function for populating the values of the settings form select.
+ */
+function _session_limit_user_options() {
+  $options = drupal_map_assoc(range(0, 250));
+  $options[0] = t('Default');
+  $options['999999'] = t('Disabled');
+  return $options;
+}
+
+/**
+ * Get the maximum number of sessions for a user.
+ *
+ * @param user $account
+ *   (optional) The user account to check. If not
+ *   supplied the active user account is used.
+ */
+function session_limit_user_max_sessions($account = NULL) {
+  $limits = &drupal_static(__FUNCTION__, array());
+
+  if (empty($account)) {
+    $account = $GLOBALS['user'];
+  }
+
+  if (!isset($limits[$account->uid])) {
+    $limits[$account->uid] = (int) variable_get('session_limit_max', 1);
+    $limit_account = session_limit_user_max_sessions_byuser($account);
+    $limit_role = session_limit_user_max_sessions_byrole($account);
+
+    if ($limit_account > 0) {
+      $limits[$account->uid] = $limit_account;
+    }
+    elseif ($limit_role > 0) {
+      $limits[$account->uid] = $limit_role;
+    }
+
+    $limits[$account->uid] = (int) $limits[$account->uid];
+  }
+
+  return $limits[$account->uid];
+}
+
+/**
+ * Get user specified session limit.
+ *
+ * @param user $account
+ *   The user account to get the session limit for
+ *
+ * @return int
+ *   Maximum number of sessions.
+ *   A value of 0 means that no user limit is set for the current user
+ *   and so the role limit should be used (or default if no role limit either).
+ */
+function session_limit_user_max_sessions_byuser($account) {
+  return (int) empty($account->data['session_limit']) ? 0 : $account->data['session_limit'];
+}
+
+/**
+ * Get the maximum number of sessions allowed by the roles of an account.
+ *
+ * @param user $account
+ *   The account to check the roles of.
+ *
+ * @return int
+ *   The maximum number of sessions the user is allowed by their roles.
+ *   A value of 0 means that no role limit exists for this user and so
+ *   the default should be used.
+ */
+function session_limit_user_max_sessions_byrole($account) {
+  $limits = array();
+
+  foreach ($account->roles as $rid => $name) {
+    $limits[] = variable_get("session_limit_rid_$rid", 0);
+  }
+
+  rsort($limits);
+
+  return (int) $limits[0];
+}
+
+/**
+ * Implements hook_trigger_info().
+ */
+function session_limit_trigger_info() {
+  return array(
+    'session_limit' => array(
+      'session_limit_collision' => array(
+        'label' => t('User logs in and has too many active sessions'),
+      ),
+      'session_limit_disconnect' => array(
+        'label' => t('When an active user is logged out by a newer session'),
+      ),
+    ),
+  );
+}
+
+/**
+ * Limit a users access to the sites based on the current session.
+ *
+ * @param string $session
+ *   The session id string which identifies the current session.
+ * @param string $op
+ *   The action which caused the session limitation event. This is
+ *   either 'collision' or 'disconnect'.
+ *
+ * @return array
+ *   The results of all hook_session_limit functions.
+ *   Note that in a collision event, a Drupal goto is executed so
+ *   this function does not return.
+ */
+function session_limit_invoke_session_limit($session, $op) {
+  $return = array();
+
+  // Execute the hook_session_limit().
+  foreach (module_implements('session_limit') as $name) {
+    $function = $name . '_session_limit';
+    $result = $function($session, $op);
+    if (isset($result) && is_array($result)) {
+      $return = array_merge($return, $result);
+    }
+    elseif (isset($result)) {
+      $return[] = $result;
+    }
+  }
+
+  // In the event of a collision, redirect to session handler.
+  if ($op == 'collision') {
+    if (variable_get('session_limit_behaviour', SESSION_LIMIT_DO_NOTHING) == SESSION_LIMIT_DROP) {
+      global $user;
+
+      // Get the number of sessions that should be removed.
+      $limit = db_query("SELECT COUNT(DISTINCT(sid)) - :max_sessions FROM {sessions} WHERE uid = :uid", array(
+        ':max_sessions' => session_limit_user_max_sessions($user),
+        ':uid' => $user->uid,
+      ))->fetchField();
+
+      if ($limit > 0) {
+        // Secure session ids are seperate rows in the database, but we don't want to kick
+        // the user off there http session and not there https session or vice versa. This
+        // is why this query is DISTINCT. 
+        $result = db_select('sessions', 's')
+          ->distinct()
+          ->fields('s', array('sid'))
+          ->condition('s.uid', $user->uid)
+          ->orderBy('timestamp', 'ASC')
+          ->range(0, $limit)
+          ->execute();
+
+        foreach ($result as $session) {
+          session_limit_invoke_session_limit($session->sid, 'disconnect');
+        }
+      }
+    }
+    else {
+      // Otherwise re-direct to the session handler page so the user can
+      // choose which action they would like to take.
+      drupal_goto('session/limit');
+    }
+  }
+
+  return $return;
+}
+
+/**
+ * Implements hook_session_limit().
+ */
+function session_limit_session_limit($sid, $op) {
+  switch ($op) {
+    case 'collision':
+      watchdog('session_limit', 'Exceeded maximum allowed active sessions.', array(), WATCHDOG_INFO);
+      break;
+
+    case 'disconnect':
+      $message = variable_get('session_limit_logged_out_message', SESSION_LIMIT_LOGGED_OUT_MESSAGE);
+      $message_severity = variable_get('session_limit_logged_out_message_severity', SESSION_LIMIT_LOGGED_OUT_MESSAGE_SEVERITY);
+      $fields['session'] = '';
+
+      if ($message_severity != '_none' && !empty($message)) {
+        $logout_message = t($message, array('@number' => session_limit_user_max_sessions()));
+        $logout_message = 'messages|' . serialize(array($message_severity => array($logout_message)));
+        $fields['session'] = $logout_message;
+      }
+
+      $fields['uid'] = 0;
+      $query = db_update('sessions')
+        ->fields($fields)
+        ->condition('sid', $sid)
+        ->execute();
+
+      watchdog('session_limit', 'Disconnected for excess active sessions.', array(), WATCHDOG_NOTICE);
+      break;
+  }
+}
+
+/**
+ * Implements hook_session_limit().
+ *
+ * This implements the hook on behalf of the trigger module.
+ */
+function trigger_session_limit($sid, $op) {
+  // Find all the actions against this $op.
+  // Note: this notation requires the $op to match the bit in the trigger info keys after session_limit!
+  $aids = trigger_get_assigned_actions('session_limit_' . $op);
+  $context = array(
+    'hook' => 'session_limit',
+    'op' => $op,
+    'sid' => $sid,
+  );
+  actions_do(array_keys($aids), $GLOBALS['user'], $context);
+}
+
+/**
+ * Implements hook_session_limit().
+ *
+ * This implements the hook on behalf of the rules module.
+ */
+function rules_session_limit($sid, $op) {
+  global $user;
+  rules_invoke_event('session_limit_' . $op, $user, $sid);
+}
+
+/**
+ * Implements hook_session_limit_bypass().
+ *
+ * @return bool
+ *   TRUE if the page request should bypass session limitation restrictions.
+ */
+function session_limit_session_limit_bypass() {
+  if ((arg(0) == 'session' && arg(1) == 'limit') || (arg(0) == 'user' && arg(1) == 'logout')) {
+    return TRUE;
+  }
+}
+
+/**
+ * Execute the session limit bypass hook.
+ *
+ * Allow other modules to prevent session limits in their own requirements.
+ *
+ * @return bool
+ *   TRUE if session limitation should be bypassed.
+ */
+function _session_limit_bypass() {
+  foreach (module_invoke_all('session_limit_bypass') as $bypass) {
+    if (!empty($bypass)) {
+      return TRUE;
+    }
+  }
+
+  return FALSE;
+}

sites/all/modules/contrib/users/session_limit/session_limit.rules.inc

@@ -0,0 +1,45 @@
+<?php
+
+/**
+* @file
+* Rules integration with session_limit.
+*/
+
+/**
+* Implements hook_rules_event_info().
+*/
+function session_limit_rules_event_info() {
+  $items = array();
+
+  $items['session_limit_collision'] = array(
+    'label' => t('User logs in and has too many active sessions'),
+    'variables' => array(
+      'account' => array(
+        'type' => 'user',
+        'label' => t('The user who logged in.'),
+      ),
+      'session_id' => array(
+        'type' => 'text',
+        'label' => t('The session id.'),
+      ),
+    ),
+    'group' => t('Session Limit'),
+  );
+
+  $items['session_limit_disconnect'] = array(
+    'label' => t('User is logged out by a newer session'),
+    'variables' => array(
+      'account' => array(
+        'type' => 'user',
+        'label' => t('The user who was logged out.'),
+      ),
+      'session_id' => array(
+        'type' => 'text',
+        'label' => t('The session id.'),
+      ),
+    ),
+    'group' => t('Session Limit'),
+  );
+
+  return $items;
+}

sites/all/modules/contrib/users/session_limit/session_limit.tokens.inc

@@ -0,0 +1,73 @@
+<?php
+/**
+ * @file
+ *
+ * Provide tokens for session limit.
+ */
+
+/**
+ * Implements hook_token_info().
+ *
+ * Create tokens for the current user.
+ */
+function session_limit_token_info() {
+  $type = array(
+    'name' => t('Session limit'),
+    'description' => t('Tokens related to session limit module.'),
+    'needs-data' => 'user',
+  );
+
+  $session_limit['default'] = array(
+    'name' => t('Default sessions'),
+    'description' => t('Maximum number of active sessions configured specific to the user.'),
+  );
+  $session_limit['max'] = array(
+    'name' => t('Maximum sessions'),
+    'description' => t('Maximum number of active sessions allowed, accounting for all configuration possibilities.'),
+  );
+  $session_limit['role'] = array(
+    'name' => t('Maximum sessions by role'),
+    'description' => t('Maximum number of active sessions allowed by role.'),
+  );
+  $session_limit['user'] = array(
+    'name' => t('Maximum sessions for user'),
+    'description' => t('Maximum number of active sessions configured specific to the user.'),
+  );
+
+  return array(
+    'types' => array('session_limit' => $type),
+    'tokens' => array('session_limit' => $session_limit),
+  );
+}
+
+/**
+ * Implements hook_tokens().
+ */
+function session_limit_tokens($type, $tokens, array $data = array(), array $options = array()) {
+  $replacements = array();
+  // The session limit variable does not need the user context.
+  if ($type == 'session_limit') {
+    foreach ($tokens as $name => $original) {
+      if ($name == 'default') {
+        $replacements[$original] = variable_get('session_limit_max', 1);
+      }
+    }
+  }
+  if ($type == 'session_limit' && !empty($data['user'])) {
+    $account = user_load($data['user']->uid);
+    foreach ($tokens as $name => $original) {
+      switch ($name) {
+        case 'max':
+          $replacements[$original] = session_limit_user_max_sessions($account);
+          break;
+        case 'role':
+          $replacements[$original] = session_limit_user_max_sessions_byrole($account);
+          break;
+        case 'user':
+          $replacements[$original] = empty($account->session_limit) ? 0 : check_plain($account->session_limit);
+          break;
+      }
+    }
+  }
+  return $replacements;
+}

sites/all/modules/contrib/users/session_limit/tests/session_limit.test

@@ -0,0 +1,604 @@
+<?php
+
+/**
+ * @file
+ * Simpletest tests for session_limit.
+ */
+
+/**
+ * Base test for session limits.
+ *
+ * This contains a collection of helper functions and session_limit
+ * assertions.
+ */
+class SessionLimitBaseTestCase extends DrupalWebTestCase {
+
+  /**
+   * A store references to different sessions.
+   */
+  protected $curlHandles = array();
+  protected $loggedInUsers = array();
+
+  /**
+   * Session limit helper function to create 3 roles.
+   *
+   * @param stdClass $user
+   *   (optional) If provided the user will be added to
+   *   the three roles.
+   *
+   * @return array
+   *   An array of the three roles.
+   */
+  public function sessionLimitMakeRoles($user = NULL) {
+    // Create roles.
+    $roles = array();
+
+    $roles[] = (object) array('name' => 'role1');
+    $roles[] = (object) array('name' => 'role2');
+    $roles[] = (object) array('name' => 'role3');
+    user_role_save($roles[0]);
+    user_role_save($roles[1]);
+    user_role_save($roles[2]);
+
+    if (!empty($user)) {
+      $user->roles[$roles[0]->rid] = $roles[0]->name;
+      $user->roles[$roles[1]->rid] = $roles[1]->name;
+      $user->roles[$roles[2]->rid] = $roles[2]->name;
+      user_save($user);
+    }
+
+    return $roles;
+  }
+
+  /**
+   * Test that an individual user can have up to a specifed number of sessions.
+   *
+   * Once the maximum is reached, the oldest session is logged out.
+   *
+   * @param int $session_limit
+   *   The max number of sessions the specified user should be able to access.
+   * @param stdClass $user
+   *   (optional) The user to test this with. Leave blank to create a user.
+   */
+  public function assertSessionLogout($session_limit, stdClass $user = NULL) {
+    // Set the session limit behaviour to log out of old sessions.
+    variable_set('session_limit_behaviour', 1);
+    variable_set('session_limit_logged_out_message', 'Reached limit @number.');
+
+    // Create the user to test with.
+    $user = empty($user) ? $this->drupalCreateUser(array('access content')) : $user;
+
+    $sessions = array();
+
+    for ($session_number = 1; $session_number <= $session_limit; $session_number++) {
+
+      // Log user into each session.
+      $this->drupalLogin($user);
+      $this->drupalGet('user');
+      $this->assertText(t('Log out'), t('User is logged in under session @no.', array('@no' => $session_number)));
+      $this->assertText($user->name, t('User is logged in under session @no.', array('@no' => $session_number)));
+
+      // Backup session.
+      $sessions[$session_number] = $this->stashSession();
+
+      // Wait briefly to prevent race conditions.
+      sleep(1);
+    }
+
+    // Check all allowed sessions are currently accessible.
+    foreach ($sessions as $session_number => $session_id) {
+      $this->restoreSession($session_id);
+      $this->drupalGet('user');
+      $this->assertText(t('Log out'), t('User is logged in under session @no.', array('@no' => $session_number)));
+      $this->assertText($user->name, t('User is logged in under session @no.', array('@no' => $session_number)));
+    }
+
+    // Create a further session.
+    $extra_session_number = $session_limit + 1;
+    $this->stashSession();
+    $this->drupalLogin($user);
+    $this->drupalGet('user');
+    $this->assertText(t('Log out'), t('User is logged in under session @no.', array('@no' => $extra_session_number)));
+    $this->assertText($user->name, t('User is logged in under session @no.', array('@no' => $extra_session_number)));
+
+    // Check user 1 is no longer logged in on session 1.
+    $sessions[$extra_session_number] = $this->stashSession();
+    $this->restoreSession($sessions[1]);
+    $this->drupalGet('node');
+    $this->assertNoText(t('Log out'), t('User 1 is not logged in under session 1.'));
+
+    $this->assertText(t('Reached limit @number.', array('@number' => $session_limit)), t('User was shown session limit message.'));
+
+    // Check user 1 is logged in on all other sessions.
+    foreach ($sessions as $session_number => $session_id) {
+      if ($session_number == 1) {
+        // We know they have been logged out of session 1.
+        continue;
+      }
+
+      $this->restoreSession($session_id);
+      $this->drupalGet('user');
+      $this->assertText(t('Log out'), t('User is logged in under session @no.', array('@no' => $session_number)));
+      $this->assertText($user->name, t('User is logged in under session @no.', array('@no' => $session_number)));
+    }
+  }
+
+  /**
+   * Test that new sessions cannot be created past a maximum.
+   *
+   * This tests the session_limit 'prevent new sessions' behaviour once
+   * the maximum is reached.
+   *
+   * @param int $session_limit
+   *   The maximum number of allowed sessions.
+   */
+  public function assertSessionPrevent($session_limit) {
+    // Set the session limit behaviour to prevent new sessions.
+    variable_set('session_limit_behaviour', 2);
+
+    // Set the default session limit to 1.
+    variable_set('session_limit_max', $session_limit);
+
+    // Create the user to test with.
+    $user = $this->drupalCreateUser(array('access content'));
+
+    $sessions = array();
+
+    for ($session_number = 1; $session_number <= $session_limit; $session_number++) {
+
+      // Log user into each session.
+      $this->drupalLogin($user);
+      $this->drupalGet('user');
+      $this->assertText(t('Log out'), t('User is logged in under session @no.', array('@no' => $session_number)));
+      $this->assertText($user->name, t('User is logged in under session @no.', array('@no' => $session_number)));
+
+      // Backup session.
+      $sessions[$session_number] = $this->stashSession();
+    }
+
+    // Check all allowed sessions are currently accessible.
+    foreach ($sessions as $session_number => $session_id) {
+      $this->restoreSession($session_id);
+      $this->drupalGet('user');
+      $this->assertText(t('Log out'), t('User is logged in under session @no.', array('@no' => $session_number)));
+      $this->assertText($user->name, t('User is logged in under session @no.', array('@no' => $session_number)));
+    }
+
+    // Try to login on a further session.
+    $this->stashSession();
+    $this->drupalLoginExpectFail($user);
+    $this->assertText(t('The maximum number of simultaneous sessions (@session_limit) for your account has been reached. You did not log off from a previous session or someone else is logged on to your account. This may indicate that your account has been compromised or that account sharing is limited on this site. Please contact the site administrator if you suspect your account has been compromised.', array('@session_limit' => $session_limit)), t('User sees the session limit login prevention message.'));
+
+    // Switch back to session 1 and logout.
+    $extra_session_number = $session_limit + 1;
+    $sessions[$extra_session_number] = $this->stashSession();
+    $this->restoreSession($sessions[1]);
+    $this->drupalLogout($user);
+    $this->drupalGet('node');
+    $this->assertNoText(t('Log out'), t('User has logged out of session 1.'));
+
+    // Switch back to extra session and check they can now login.
+    $this->restoreSession($sessions[$extra_session_number]);
+    $this->drupalLogin($user);
+    $this->drupalGet('node');
+    $this->assertText(t('Log out'), t('User has logged into the extra session now they have logged out of session 1.'));
+  }
+
+  /**
+   * Initialise a new unique session.
+   *
+   * @return string
+   *   Unique identifier for the session just stored.
+   *   It is the cookiefile name.
+   */
+  public function stashSession() {
+    if (empty($this->cookieFile)) {
+      // No session to stash.
+      return;
+    }
+
+    // The session_id is the current cookieFile.
+    $session_id = $this->cookieFile;
+
+    $this->curlHandles[$session_id] = $this->curlHandle;
+    $this->loggedInUsers[$session_id] = $this->loggedInUser;
+
+    // Reset Curl.
+    unset($this->curlHandle);
+    $this->loggedInUser = FALSE;
+
+    // Set a new unique cookie filename.
+    do {
+      $this->cookieFile = $this->public_files_directory . '/' . $this->randomName() . '.jar';
+    }
+    while (isset($this->curlHandles[$this->cookieFile]));
+
+    return $session_id;
+  }
+
+  /**
+   * Restore a previously stashed session.
+   *
+   * @param string $session_id
+   *   The session to restore as returned by stashSession();
+   *   This is also the path to the cookie file.
+   *
+   * @return string
+   *   The old session id that was replaced.
+   */
+  public function restoreSession($session_id) {
+    $old_session_id = NULL;
+
+    if (isset($this->curlHandle)) {
+      $old_session_id = $this->stashSession();
+    }
+
+    // Restore the specified session.
+    $this->curlHandle = $this->curlHandles[$session_id];
+    $this->cookieFile = $session_id;
+    $this->loggedInUser = $this->loggedInUsers[$session_id];
+
+    return $old_session_id;
+  }
+
+  /**
+   * Close all stashed sessions and the current session.
+   */
+  public function closeAllSessions() {
+    foreach ($this->curlHandles as $cookie_file => $curl_handle) {
+      if (isset($curl_handle)) {
+        curl_close($curl_handle);
+      }
+    }
+
+    // Make the server forget all sessions.
+    db_truncate('sessions')->execute();
+
+    $this->curlHandles = array();
+    $this->loggedInUsers = array();
+    $this->loggedInUser = FALSE;
+    $this->cookieFile = $this->public_files_directory . '/' . $this->randomName() . '.jar';
+    unset($this->curlHandle);
+  }
+
+  /**
+   * Log in a user with the internal browser but expect this to fail.
+   *
+   * This works as drupalLogin but instead of checking if the login succeeded,
+   * it instead checks for not being logged in and fails if it has managed
+   * to login successfully.
+   *
+   * @param $account
+   *   User object representing the user to log in.
+   *
+   * @see drupalCreateUser()
+   */
+  protected function drupalLoginExpectFail(stdClass $account) {
+    if ($this->loggedInUser) {
+      $this->drupalLogout();
+    }
+
+    $edit = array(
+      'name' => $account->name,
+      'pass' => $account->pass_raw
+    );
+    $this->drupalPost('user', $edit, t('Log in'));
+
+    // Check that login was unsuccessful by ensuring there is no log out link.
+    $pass = $this->assertNoLink(t('Log out'), 0, t('User %name did not log in.', array('%name' => $account->name)), t('User login'));
+
+    if (!$pass) {
+      $this->loggedInUser = $account;
+    }
+  }
+}
+
+/**
+ * Tests the multiple session test functionality.
+ */
+class SessionLimitSessionTestCase extends SessionLimitBaseTestCase {
+
+  /**
+   * getInfo() returns properties that are displayed in the test selection form.
+   */
+  public static function getInfo() {
+    return array(
+      'name' => 'Session Limit MutiSession Tests',
+      'description' => 'Ensure the multi session tests for SimpleTest work as expected',
+      'group' => 'Session Limit',
+    );
+  }
+
+  /**
+   * setUp() performs any pre-requisite tasks that need to happen.
+   */
+  public function setUp() {
+    // Enable any modules required for the test.
+    parent::setUp('session_limit');
+  }
+
+  /**
+   * Test session stash and restore.
+   *
+   * Drupal Simpletest has no native ability to test over multiple sessions.
+   * The session_limit tests add this functionality. This first test checks
+   * that multiple sessions are working in SimpleTest by logging in as two
+   * different users simultaneously via two cUrl sessions.
+   */
+  public function testSessionStashAndRestore() {
+
+    // Create and log in our privileged user.
+    $user1 = $this->drupalCreateUser(array('access content'));
+    $user2 = $this->drupalCreateUser(array('access content'));
+
+    // Make sure that session_limit does not interfere with
+    // this test of the tests.
+    variable_set('session_limit_behaviour', 0);
+    variable_set('session_limit_max', 100);
+
+    // Login under session 1.
+    $this->drupalLogin($user1);
+    $this->drupalGet('user');
+    $this->assertText(t('Log out'), t('User is logged in under session 1.'));
+    $this->assertText($user1->name, t('User1 is logged in under session 1.'));
+
+    // Backup session 1.
+    $session_1 = $this->stashSession();
+
+    // Check session 2 is logged out.
+    $this->drupalGet('node');
+    $this->assertNoText(t('Log out'), t('Session 1 is shelved.'));
+
+    // Login under session 2.
+    $this->drupalLogin($user2);
+    $this->drupalGet('user');
+    $this->assertText(t('Log out'), t('User is logged in under session 2.'));
+    $this->assertText($user2->name, t('User2 is logged in under session 2.'));
+
+    // Backup session 2.
+    $session_2 = $this->stashSession();
+
+    // Switch to session 1.
+    $this->restoreSession($session_1);
+
+    // Check still logged in as session 1.
+    $this->drupalGet('user');
+    $this->assertText(t('Log out'), t('User is logged in under session 1.'));
+    $this->assertText($user1->name, t('User1 is logged in under session 1.'));
+
+    // Switch to session 2.
+    $this->restoreSession($session_2);
+
+    // Check still logged in as session 2.
+    $this->drupalGet('user');
+    $this->assertText(t('Log out'), t('User is logged in under session 2.'));
+    $this->assertText($user2->name, t('User2 is logged in under session 2.'));
+  }
+}
+
+/**
+ * Session limit functions when expected behaviour is to logout oldest session.
+ */
+class SessionLimitLogoutTestCase extends SessionLimitBaseTestCase {
+
+  /**
+   * getInfo() returns properties that are displayed in the test selection form.
+   */
+  public static function getInfo() {
+    return array(
+      'name' => 'Session Limit Logout Tests',
+      'description' => 'Ensure that the session limit module functions as expected when behaviour is set to logout oldest session',
+      'group' => 'Session Limit',
+    );
+  }
+
+  /**
+   * setUp() performs any pre-requisite tasks that need to happen.
+   */
+  public function setUp() {
+    // Enable any modules required for the test.
+    parent::setUp('session_limit');
+  }
+
+  /**
+   * Test user can only have 1 session, logout oldest.
+   */
+  public function testSessionLogoutOnMax1() {
+    // Set the default session limit.
+    variable_set('session_limit_max', 1);
+
+    $this->assertSessionLogout(1);
+    $this->closeAllSessions();
+  }
+
+  /**
+   * Test user can only have 2 sessions, logout oldest.
+   */
+  public function testSessionLogoutOnMax2() {
+    // Set the default session limit.
+    variable_set('session_limit_max', 2);
+
+    $this->assertSessionLogout(2);
+    $this->closeAllSessions();
+  }
+
+  /**
+   * Checks that the session limit is returned correctly by a role.
+   */
+  public function testSessionLimitRoles() {
+    // Create a test user.
+    $user = $this->drupalCreateUser(array('access content'));
+    $roles = $this->sessionLimitMakeRoles($user);
+
+    // Set the session limits for the roles.
+    variable_set('session_limit_rid_' . $roles[0]->rid, 2);
+    variable_set('session_limit_rid_' . $roles[1]->rid, 4);
+    variable_set('session_limit_rid_' . $roles[2]->rid, 3);
+
+    // Set the default session limit.
+    variable_set('session_limit_max', 1);
+
+    // Check if the user has access to 4 sessions.
+    $this->assertSessionLogout(4, $user);
+  }
+
+  /**
+   * Checks that the session limit is returned correctly by a user override.
+   */
+  public function testSessionLimitUser() {
+    // Create a test user.
+    $user = $this->drupalCreateUser();
+    $roles = $this->sessionLimitMakeRoles($user);
+
+    // Add a personal session limit.
+    user_save($user, array('data' => array('session_limit' => 5)));
+
+    // Set the session limits for the roles.
+    variable_set('session_limit_rid_' . $roles[0]->rid, 2);
+    variable_set('session_limit_rid_' . $roles[1]->rid, 3);
+    variable_set('session_limit_rid_' . $roles[2]->rid, 4);
+
+    // Set the default session limit.
+    variable_set('session_limit_max', 1);
+
+    // Check if the user has access to 5 sessions.
+    $this->assertSessionLogout(5, $user);
+  }
+
+  /**
+   * Check that user override takes precedence over default and role regardless of max.
+   */
+  public function testSessionLimitUserMaxPrecedence() {
+    // Create a test user.
+    $user = $this->drupalCreateUser();
+    $roles = $this->sessionLimitMakeRoles($user);
+
+    // Add a personal session limit.
+    user_save($user, array('data' => array('session_limit' => 1)));
+
+    // Set the session limits for the roles.
+    variable_set('session_limit_rid_' . $roles[0]->rid, 3);
+    variable_set('session_limit_rid_' . $roles[1]->rid, 4);
+    variable_set('session_limit_rid_' . $roles[2]->rid, 5);
+
+    // Set the default session limit.
+    variable_set('session_limit_max', 2);
+
+    // Check if the user has access to only 1 session.
+    $this->assertSessionLogout(1, $user);
+  }
+}
+
+/**
+ * Session limit functionality when behaviour is to prevent login at limit.
+ */
+class SessionLimitPreventTestCase extends SessionLimitBaseTestCase {
+
+  /**
+   * getInfo() returns properties that are displayed in the test selection form.
+   */
+  public static function getInfo() {
+    return array(
+      'name' => 'Session Limit Prevent Tests',
+      'description' => 'Ensure that the session limit module functions as expected when behaviour is set to prevent new sessions',
+      'group' => 'Session Limit',
+    );
+  }
+
+  /**
+   * setUp() performs any pre-requisite tasks that need to happen.
+   */
+  public function setUp() {
+    // Enable any modules required for the test.
+    parent::setUp('session_limit');
+  }
+
+  /**
+   * Test user can only have 1 session, prevent new sessions.
+   */
+  public function testSessionPreventOnMax1() {
+    // Set the default session limit.
+    variable_set('session_limit_max', 1);
+
+    $this->assertSessionPrevent(1);
+    $this->closeAllSessions();
+  }
+
+  /**
+   * Test user can only have 2 sessions, prevent new sessions.
+   */
+  public function testSessionPreventOnMax2() {
+    // Set the default session limit.
+    variable_set('session_limit_max', 1);
+
+    $this->assertSessionPrevent(2);
+    $this->closeAllSessions();
+  }
+
+  /**
+   * Checks that the session limit is returned correctly by a role.
+   */
+  public function testSessionLimitRoles() {
+    // Create a test user.
+    $user = $this->drupalCreateUser(array('access content'));
+    $roles = $this->sessionLimitMakeRoles($user);
+
+    // Set the session limits for the roles.
+    variable_set('session_limit_rid_' . $roles[0]->rid, 2);
+    variable_set('session_limit_rid_' . $roles[1]->rid, 4);
+    variable_set('session_limit_rid_' . $roles[2]->rid, 3);
+
+    // Set the default session limit.
+    variable_set('session_limit_max', 1);
+
+    // Check if the user has access to 4 sessions.
+    $this->assertSessionPrevent(4, $user);
+  }
+
+  /**
+   * Checks that the session limit is returned correctly by a user override.
+   */
+  public function testSessionLimitUser() {
+    // Create a test user.
+    $user = $this->drupalCreateUser();
+    $roles = $this->sessionLimitMakeRoles($user);
+
+    // Add a personal session limit.
+    user_save($user, array('data' => array('session_limit' => 5)));
+
+    // Set the session limits for the roles.
+    variable_set('session_limit_rid_' . $roles[0]->rid, 2);
+    variable_set('session_limit_rid_' . $roles[1]->rid, 3);
+    variable_set('session_limit_rid_' . $roles[2]->rid, 4);
+
+    // Set the default session limit.
+    variable_set('session_limit_max', 1);
+
+    // Check if the user has access to 5 sessions.
+    $this->assertSessionPrevent(5, $user);
+  }
+
+  /**
+   * Checks that a user session limit is always used in preference to all others.
+   */
+  public function testSessionLimitUserMaxPrecedence() {
+    // Create a test user.
+    $user = $this->drupalCreateUser();
+    $roles = $this->sessionLimitMakeRoles($user);
+
+    // Add a personal session limit.
+    user_save($user, array('data' => array('session_limit' => 1)));
+
+    // Set the session limits for the roles.
+    variable_set('session_limit_rid_' . $roles[0]->rid, 3);
+    variable_set('session_limit_rid_' . $roles[1]->rid, 4);
+    variable_set('session_limit_rid_' . $roles[2]->rid, 5);
+
+    // Set the default session limit.
+    variable_set('session_limit_max', 2);
+
+    // Check if the user has access to 1 session, the user specified max.
+    $this->assertSessionPrevent(1, $user);
+  }
+
+}