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339
wp/wp-content/plugins/wp-native-php-sessions/LICENSE Normal file
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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
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
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customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
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distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
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infringement or for any other reason (not limited to patent issues),
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License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<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.

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<?php
/**
* Controller for backend functionality.
*
* @package WPNPS
*/
namespace Pantheon_Sessions;
/**
* Controller for backend functionality.
*/
class Admin {
/**
* Copy of the singleton instance.
*
* @var object
*/
private static $instance;
/**
* Name of capability required to perform actions.
*
* @var string
*/
private static $capability = 'manage_options';
/**
* Gets a copy of the singleton instance.
*
* @return object
*/
public static function get_instance() {
if ( ! isset( self::$instance ) ) {
self::$instance = new Admin();
self::$instance->setup_actions();
}
return self::$instance;
}
/**
* Load admin actions
*/
private function setup_actions() {
add_action( 'admin_menu', [ $this, 'action_admin_menu' ] );
add_action( 'wp_ajax_pantheon_clear_session', [ $this, 'handle_clear_session' ] );
}
/**
* Register the admin menu
*/
public function action_admin_menu() {
add_management_page( __( 'Pantheon Sessions', 'wp-native-php-sessions' ), __( 'Sessions', 'wp-native-php-sessions' ), self::$capability, 'pantheon-sessions', [ $this, 'handle_page' ] );
}
/**
* Render the admin page
*/
public function handle_page() {
global $wpdb;
require_once ABSPATH . 'wp-admin/includes/class-wp-list-table.php';
require_once __DIR__ . '/class-list-table.php';
echo '<div class="wrap">';
echo '<div>';
$query_args = [
'action' => 'pantheon_clear_session',
'nonce' => wp_create_nonce( 'pantheon_clear_session' ),
'session' => 'all',
];
if ( $wpdb->get_var( "SELECT COUNT(session_id) FROM $wpdb->pantheon_sessions" ) ) {
echo '<a class="button pantheon-clear-all-sessions" style="float:right; margin-top: 9px;" href="' . esc_url( add_query_arg( $query_args, admin_url( 'admin-ajax.php' ) ) ) . '">' . esc_html__( 'Clear All', 'wp-native-php-sessions' ) . '</a>';
}
echo '<h2>' . esc_html__( 'Pantheon Sessions', 'wp-native-php-sessions' ) . '</h2>';
if ( isset( $_GET['message'] ) && in_array( $_GET['message'], [ 'delete-all-session', 'delete-session' ], true ) ) {
if ( 'delete-all-session' === $_GET['message'] ) {
$message = __( 'Cleared all sessions.', 'wp-native-php-sessions' );
} elseif ( 'delete-session' === $_GET['message'] ) {
$message = __( 'Session cleared.', 'wp-native-php-sessions' );
}
echo '<div id="message" class="updated"><p>' . esc_html( $message ) . '</p></div>';
}
echo '</div>';
$wp_list_table = new List_Table();
$wp_list_table->prepare_items();
$wp_list_table->display();
echo '</div>';
add_action( 'admin_footer', [ $this, 'action_admin_footer' ] );
}
/**
* Handle a request to clear all sessions
*/
public function handle_clear_session() {
global $wpdb;
if ( ! current_user_can( self::$capability ) || ! wp_verify_nonce( $_GET['nonce'], 'pantheon_clear_session' ) ) {
wp_die( esc_html__( "You don't have permission to do this.", 'wp-native-php-sessions' ) );
}
if ( ! empty( $_GET['session'] ) && 'all' === $_GET['session'] ) {
$wpdb->query( "DELETE FROM $wpdb->pantheon_sessions" );
$message = 'delete-all-session';
} else {
$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->pantheon_sessions WHERE session_id=%s", sanitize_text_field( $_GET['session'] ) ) );
$message = 'delete-session';
}
wp_safe_redirect( add_query_arg( 'message', $message, wp_get_referer() ) );
exit;
}
/**
* Stuff that needs to go in the footer
*/
public function action_admin_footer() {
?>
<script>
(function($){
$(document).ready(function(){
$('.pantheon-clear-all-sessions').on('click', function( e ){
if ( ! confirm( '<?php esc_html_e( 'Are you sure you want to clear all active sessions?', 'wp-native-php-sessions' ); ?>') ) {
e.preventDefault();
}
});
});
}(jQuery))
</script>
<?php
}
}

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<?php
/**
* CLI interface to interact with Pantheon sessions.
*
* @package WPNPS
*/
namespace Pantheon_Sessions;
use WP_CLI;
/**
* Interact with Pantheon Sessions
*/
class CLI_Command extends \WP_CLI_Command {
/**
* List all registered sessions.
*
* [--format=<format>]
* : Accepted values: table, csv, json, count, ids. Default: table
*
* @subcommand list
*/
public function list_( $args, $assoc_args ) {
global $wpdb;
if ( ! PANTHEON_SESSIONS_ENABLED ) {
WP_CLI::error( 'Pantheon Sessions is currently disabled.' );
}
$defaults = [
'format' => 'table',
'fields' => 'session_id,user_id,datetime,ip_address,data',
];
$assoc_args = array_merge( $defaults, $assoc_args );
$sessions = [];
foreach ( new \WP_CLI\Iterators\Query( "SELECT * FROM {$wpdb->pantheon_sessions} ORDER BY datetime DESC" ) as $row ) {
$sessions[] = $row;
}
\WP_CLI\Utils\Format_Items( $assoc_args['format'], $sessions, $assoc_args['fields'] );
}
/**
* Delete one or more sessions.
*
* [<session-id>...]
* : One or more session IDs
*
* [--all]
* : Delete all sessions.
*
* @subcommand delete
*/
public function delete( $args, $assoc_args ) {
global $wpdb;
if ( ! PANTHEON_SESSIONS_ENABLED ) {
WP_CLI::error( 'Pantheon Sessions is currently disabled.' );
}
if ( isset( $assoc_args['all'] ) ) {
$args = $wpdb->get_col( "SELECT session_id FROM {$wpdb->pantheon_sessions}" );
if ( empty( $args ) ) {
WP_CLI::warning( 'No sessions to delete.' );
}
}
foreach ( $args as $session_id ) {
$session = \Pantheon_Sessions\Session::get_by_sid( $session_id );
if ( $session ) {
$session->destroy();
WP_CLI::log( sprintf( 'Session destroyed: %s', $session_id ) );
} else {
WP_CLI::warning( sprintf( "Session doesn't exist: %s", $session_id ) );
}
}
}
}
\WP_CLI::add_command( 'pantheon session', '\Pantheon_Sessions\CLI_Command' );

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<?php
/**
* List table for displaying all sessions.
*
* @package WPNPS
*/
namespace Pantheon_Sessions;
/**
* List table for displaying all sessions.
*/
class List_Table extends \WP_List_Table {
/**
* Prepare the items for the list table
*/
public function prepare_items() {
global $wpdb;
$columns = $this->get_columns();
$hidden = [];
$sortable = [];
$this->_column_headers = [ $columns, $hidden, $sortable ];
$per_page = 20;
$paged = ( isset( $_GET['paged'] ) ) ? (int) $_GET['paged'] : 1;
$offset = $per_page * ( $paged - 1 );
$this->items = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->pantheon_sessions ORDER BY datetime DESC LIMIT %d,%d", $offset, $per_page ) );
$total_items = $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->pantheon_sessions" );
$this->set_pagination_args(
[
'total_items' => $total_items,
'per_page' => $per_page,
]
);
}
/**
* Message for no items found
*/
public function no_items() {
_e( 'No sessions found.', 'wp-native-php-sessions' );
}
/**
* Get the columns in the list table
*/
public function get_columns() {
return [
'session_id' => __( 'Session ID', 'wp-native-php-sessions' ),
'user_id' => __( 'User ID', 'wp-native-php-sessions' ),
'ip_address' => __( 'IP Address', 'wp-native-php-sessions' ),
'datetime' => __( 'Last Active', 'wp-native-php-sessions' ),
'data' => __( 'Data', 'wp-native-php-sessions' ),
];
}
/**
* Render a column value
*
* @param object $item Session to display.
* @param string $column_name Name of the column.
*/
public function column_default( $item, $column_name ) {
if ( 'data' === $column_name ) {
return '<code>' . esc_html( $item->data ) . '</code>';
} elseif ( 'session_id' === $column_name ) {
$query_args = [
'action' => 'pantheon_clear_session',
'nonce' => wp_create_nonce( 'pantheon_clear_session' ),
'session' => $item->session_id,
];
$actions = [
'clear' => '<a href="' . esc_url( add_query_arg( $query_args, admin_url( 'admin-ajax.php' ) ) ) . '">' . esc_html__( 'Clear', 'wp-native-php-sessions' ) . '</a>',
];
return esc_html( $item->session_id ) . $this->row_actions( $actions );
} elseif ( 'datetime' === $column_name ) {
// translators: Time ago.
return esc_html( sprintf( esc_html__( '%s ago', 'wp-native-php-sessions' ), human_time_diff( strtotime( $item->datetime ) ) ) );
} else {
return esc_html( $item->$column_name );
}
}
}

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<?php
/**
* Implementation of 'SessionHandlerInterface' that writes to the database.
*
* @package WPNPS
*/
namespace Pantheon_Sessions;
use Pantheon_Sessions\Session;
/**
* Implementation of 'SessionHandlerInterface' that writes to the database.
*
* @package WPNPS
*/
class Session_Handler implements \SessionHandlerInterface {
/**
* Closes the session.
*
* @param string $save_path Path to where the session is to be stored.
* @param string $session_name Name of the session.
* @return boolean
*/
#[\ReturnTypeWillChange]
public function open( $save_path, $session_name ) {
return true;
}
/**
* Writes a session to the database.
*
* @param string $session_id Session id.
* @param string $session_data Session data.
* @return boolean
*/
#[\ReturnTypeWillChange]
public function write( $session_id, $session_data ) {
$session = Session::get_by_sid( $session_id );
if ( ! $session ) {
$session = Session::create_for_sid( $session_id );
}
if ( ! $session ) {
trigger_error( 'Could not write session to the database. Please check MySQL configuration.', E_USER_WARNING );
return false;
}
$session->set_data( $session_data );
return true;
}
/**
* Reads session data from the database.
*
* @param string $session_id Session id.
* @return string
*/
#[\ReturnTypeWillChange]
public function read( $session_id ) {
// 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( $session_id )
|| ( ! isset( $_COOKIE[ session_name() ] ) && ! isset( $_COOKIE[ $insecure_session_name ] ) ) ) {
return '';
}
$session = Session::get_by_sid( $session_id );
if ( $session ) {
return $session->get_data() ?: '';
} else {
return '';
}
}
/**
* Destroys the session.
*
* @param string $session_id Session id.
*/
#[\ReturnTypeWillChange]
public function destroy( $session_id ) {
$session = Session::get_by_sid( $session_id );
if ( ! $session ) {
return;
}
$session->destroy();
return true;
}
/**
* Runs the garbage collection process.
*
* @param integer $maxlifetime Maximum lifetime in seconds.
*/
#[\ReturnTypeWillChange]
public function gc( $maxlifetime ) {
global $wpdb;
$wpdb = Session::restore_wpdb_if_null( $wpdb );
// 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.
$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->pantheon_sessions WHERE `datetime` <= %s ", gmdate( 'Y-m-d H:i:s', time() - $maxlifetime ) ) );
return true;
}
/**
* Closes the session.
*
* @return boolean
*/
#[\ReturnTypeWillChange]
public function close() {
return true;
}
}

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<?php
/**
* Individual session object.
*
* @package WPNPS
*/
namespace Pantheon_Sessions;
/**
* Individual session object.
*/
class Session {
/**
* Any sessions stored statically.
*
* @var array
*/
private static $sessions = [];
/**
* Any secure sessions stored statically.
*
* @var array
*/
private static $secure_sessions = [];
/**
* Session id.
*
* @var string
*/
private $sid;
/**
* Session data.
*
* @var array
*/
private $data;
/**
* Session user id.
*
* @var integer
*/
private $user_id;
/**
* Get a session based on its ID.
*
* @param string $sid Session id.
* @return Session|false
*/
public static function get_by_sid( $sid ) {
global $wpdb;
if ( ! $sid ) {
return false;
}
$wpdb = self::restore_wpdb_if_null( $wpdb );
$column_name = self::get_session_id_column();
$table_name = $wpdb->pantheon_sessions;
// phpcs:ignore
$session_row = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$table_name} WHERE {$column_name}=%s", $sid ) );
if ( ! $session_row ) {
return false;
}
return new Session( $session_row->$column_name, $session_row->data, $session_row->user_id );
}
/**
* Create a database entry for this session
*
* @param string $sid Session id.
* @return Session
*/
public static function create_for_sid( $sid ) {
global $wpdb;
$wpdb = self::restore_wpdb_if_null( $wpdb );
$insert_data = [
'session_id' => $sid,
'user_id' => (int) get_current_user_id(),
];
if ( function_exists( 'is_ssl' ) && is_ssl() ) {
$insert_data['secure_session_id'] = $sid;
}
$wpdb->insert( $wpdb->pantheon_sessions, $insert_data );
return self::get_by_sid( $sid );
}
/**
* Instantiates a session object.
*
* @param string $sid Session id.
* @param mixed $data Any session data.
* @param integer $user_id User id for the session.
*/
private function __construct( $sid, $data, $user_id ) {
$this->sid = $sid;
$this->data = $data;
$this->user_id = $user_id;
}
/**
* Get this session's ID
*
* @return string
*/
public function get_id() {
return $this->sid;
}
/**
* Get this session's data
*
* @return mixed
*/
public function get_data() {
return maybe_unserialize( $this->data );
}
/**
* Get this session's user id.
*
* @return integer
*/
public function get_user_id() {
return (int) $this->user_id;
}
/**
* Set the user id for this session.
*
* @param integer $user_id User id.
*/
public function set_user_id( $user_id ) {
global $wpdb;
$wpdb = self::restore_wpdb_if_null( $wpdb );
$this->user_id = (int) $user_id;
$wpdb->update(
$wpdb->pantheon_sessions,
[
'user_id' => $this->user_id,
],
[ self::get_session_id_column() => $this->get_id() ]
);
}
/**
* Set the session's data
*
* @param mixed $data Session data.
*/
public function set_data( $data ) {
global $wpdb;
if ( $data === $this->get_data() ) {
return;
}
if ( ! isset( $_SERVER['REMOTE_ADDR'] ) ) {
$_SERVER['REMOTE_ADDR'] = '127.0.0.1';
}
$wpdb = self::restore_wpdb_if_null( $wpdb );
$wpdb->update(
$wpdb->pantheon_sessions,
[
'user_id' => (int) get_current_user_id(),
'datetime' => gmdate( 'Y-m-d H:i:s' ),
'ip_address' => self::get_client_ip_server(),
'data' => maybe_serialize( $data ),
],
[ self::get_session_id_column() => $this->get_id() ]
);
$this->data = maybe_serialize( $data );
}
/**
* Get the clients ip address
*
* @return string
*/
public static function get_client_ip_server() {
// Set default.
$ip_address = apply_filters( 'pantheon_sessions_client_ip_default', '127.0.0.1' );
$ip_source = null;
$keys = [
'HTTP_CLIENT_IP',
'HTTP_X_FORWARDED_FOR',
'HTTP_X_FORWARDED',
'HTTP_FORWARDED_FOR',
'HTTP_FORWARDED',
'REMOTE_ADDR',
];
$ip_filter_flags = apply_filters( 'pantheon_sessions_client_ip_filter_flags', FILTER_FLAG_IPV4 | FILTER_FLAG_IPV6 | FILTER_FLAG_NO_RES_RANGE );
foreach ( $keys as $key ) {
if ( array_key_exists( $key, $_SERVER )
&& $_SERVER[ $key ]
) {
$_ip_address = $_SERVER[ $key ];
if ( false !== strpos( $_ip_address, ',' ) ) {
$_ip_address = trim( strstr( $_ip_address, ',', true ) );
}
if ( false === filter_var( $_ip_address, FILTER_VALIDATE_IP, $ip_filter_flags ) ) {
continue;
}
$ip_address = $_ip_address;
$ip_source = $key;
break;
}
}
return apply_filters(
'pantheon_sessions_client_ip',
preg_replace( '/[^0-9a-fA-F:., ]/', '', $ip_address ),
$ip_source
);
}
/**
* Destroy this session
*/
public function destroy() {
global $wpdb;
$wpdb = self::restore_wpdb_if_null( $wpdb );
$wpdb->delete( $wpdb->pantheon_sessions, [ self::get_session_id_column() => $this->get_id() ] );
// Reset $_SESSION to prevent a new session from being started.
$_SESSION = [];
$this->delete_cookies();
}
/**
* Restores $wpdb database connection if missing.
*
* @param mixed $wpdb Existing global.
* @return object
*/
public static function restore_wpdb_if_null( $wpdb ) {
if ( $wpdb instanceof \wpdb ) {
return $wpdb;
}
$dbuser = defined( 'DB_USER' ) ? DB_USER : '';
$dbpassword = defined( 'DB_PASSWORD' ) ? DB_PASSWORD : '';
$dbname = defined( 'DB_NAME' ) ? DB_NAME : '';
$dbhost = defined( 'DB_HOST' ) ? DB_HOST : '';
return new \wpdb( $dbuser, $dbpassword, $dbname, $dbhost );
}
/**
* Delete session cookies
*/
private function delete_cookies() {
// Cookies don't exist on CLI.
if ( self::is_cli() ) {
return;
}
$session_name = session_name();
$cookies = [
$session_name,
substr( $session_name, 1 ),
'S' . $session_name,
];
foreach ( $cookies as $cookie_name ) {
if ( ! isset( $_COOKIE[ $cookie_name ] ) ) {
continue;
}
$params = session_get_cookie_params();
setcookie( $cookie_name, '', $_SERVER['REQUEST_TIME'] - 3600, $params['path'], $params['domain'], $params['secure'], $params['httponly'] );
unset( $_COOKIE[ $cookie_name ] );
}
}
/**
* Is this request via CLI?
*
* @return bool
*/
private static function is_cli() {
return 'cli' === PHP_SAPI;
}
/**
* Get the session ID column name
*
* @return string
*/
private static function get_session_id_column() {
if ( is_ssl() ) {
return 'secure_session_id';
} else {
return 'session_id';
}
}
}

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<?php
/**
* Plugin Name: Native PHP Sessions for WordPress
* Version: 1.3.6
* Description: Offload PHP's native sessions to your database for multi-server compatibility.
* Author: Pantheon
* Author URI: https://www.pantheon.io/
* Plugin URI: https://wordpress.org/plugins/wp-native-php-sessions/
* Text Domain: wp-native-php-sessions
*
* @package WPNPS
**/
use Pantheon_Sessions\Session;
define( 'PANTHEON_SESSIONS_VERSION', '1.3.6' );
/**
* Main controller class for the plugin.
*/
class Pantheon_Sessions {
/**
* Copy of the singleton instance.
*
* @var object
*/
private static $instance;
/**
* The admin instance.
*
* @var \Pantheon_Sessions\Admin
*/
private $admin;
/**
* Gets a copy of the singleton instance.
*
* @return object
*/
public static function get_instance() {
if ( ! isset( self::$instance ) ) {
self::$instance = new Pantheon_Sessions();
self::$instance->load();
}
return self::$instance;
}
/**
* Load the plugin
*/
private function load() {
if ( defined( 'WP_INSTALLING' ) && WP_INSTALLING ) {
return;
}
if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
return;
}
$this->define_constants();
$this->require_files();
if ( PANTHEON_SESSIONS_ENABLED ) {
$this->setup_database();
$this->initialize_session_override();
$this->set_ini_values();
add_action( 'set_logged_in_cookie', [ __CLASS__, 'action_set_logged_in_cookie' ], 10, 4 );
add_action( 'clear_auth_cookie', [ __CLASS__, 'action_clear_auth_cookie' ] );
}
}
/**
* Define our constants
*/
private function define_constants() {
if ( ! defined( 'PANTHEON_SESSIONS_ENABLED' ) ) {
define( 'PANTHEON_SESSIONS_ENABLED', 1 );
}
}
/**
* Load required files
*/
private function require_files() {
if ( defined( 'WP_CLI' ) && WP_CLI ) {
require_once __DIR__ . '/inc/class-cli-command.php';
}
if ( is_admin() ) {
require_once __DIR__ . '/inc/class-admin.php';
$this->admin = Pantheon_Sessions\Admin::get_instance();
}
}
/**
* Set the PHP ini settings for the session implementation to work properly
*
* Largely adopted from Drupal 7's implementation
*/
private function set_ini_values() {
if ( headers_sent() ) {
return;
}
// If the user specifies the cookie domain, also use it for session name.
if ( defined( 'COOKIE_DOMAIN' ) && constant( 'COOKIE_DOMAIN' ) ) {
$cookie_domain = constant( 'COOKIE_DOMAIN' );
$session_name = $cookie_domain;
} else {
$session_name = parse_url( home_url(), PHP_URL_HOST );
$cookie_domain = ltrim( $session_name, '.' );
// Strip leading periods, www., and port numbers from cookie domain.
if ( strpos( $cookie_domain, 'www.' ) === 0 ) {
$cookie_domain = substr( $cookie_domain, 4 );
}
$cookie_domain = explode( ':', $cookie_domain );
$cookie_domain = '.' . $cookie_domain[0];
}
// Per RFC 2109, cookie domains must contain at least one dot other than the
// first. For hosts such as 'localhost' or IP Addresses we don't set a cookie domain.
if ( count( explode( '.', $cookie_domain ) ) > 2 && ! is_numeric( str_replace( '.', '', $cookie_domain ) ) ) {
ini_set( 'session.cookie_domain', $cookie_domain );
}
// To prevent session cookies from being hijacked, a user can configure the
// SSL version of their website to only transfer session cookies via SSL by
// using PHP's session.cookie_secure setting. The browser will then use two
// separate session cookies for the HTTPS and HTTP versions of the site. So we
// must use different session identifiers for HTTPS and HTTP to prevent a
// cookie collision.
if ( is_ssl() ) {
ini_set( 'session.cookie_secure', true );
}
$prefix = ini_get( 'session.cookie_secure' ) ? 'SSESS' : 'SESS';
session_name( $prefix . substr( hash( 'sha256', $session_name ), 0, 32 ) );
// Use session cookies, not transparent sessions that puts the session id in
// the query string.
$use_cookies = '1';
if ( defined( 'WP_CLI' ) && WP_CLI ) {
$use_cookies = '0';
}
ini_set( 'session.use_cookies', $use_cookies );
ini_set( 'session.use_only_cookies', '1' );
ini_set( 'session.use_trans_sid', '0' );
// Don't send HTTP headers using PHP's session handler.
// An empty string is used here to disable the cache limiter.
ini_set( 'session.cache_limiter', '' );
// Use httponly session cookies. Limits use by JavaScripts.
ini_set( 'session.cookie_httponly', '1' );
// Get cookie lifetime from filters so you can put your custom lifetime.
ini_set( 'session.cookie_lifetime', (int) apply_filters( 'pantheon_session_expiration', 0 ) );
}
/**
* Override the default sessions implementation with our own
*
* Largely adopted from Drupal 7's implementation
*/
private function initialize_session_override() {
require_once __DIR__ . '/inc/class-session.php';
require_once __DIR__ . '/inc/class-session-handler.php';
$session_handler = new Pantheon_Sessions\Session_Handler();
if ( PHP_SESSION_ACTIVE !== session_status() ) {
// Check if headers have already been sent.
if ( headers_sent( $file, $line ) ) {
// Output a friendly error message if headers are already sent.
trigger_error(
sprintf(
/* translators: %1s: File path, %2d: Line number */
__( "Oops! The wp-native-php-sessions plugin couldn't start the session because output has already been sent. This might be caused by PHP throwing errors. Please check the code in %1s on line %2d.", 'wp-native-php-sessions' ),
$file,
$line
),
E_USER_WARNING
);
} else {
session_set_save_handler( $session_handler, false );
}
}
// Close the session before $wpdb destructs itself.
add_action( 'shutdown', 'session_write_close', 999, 0 );
}
/**
* Set up the database
*/
private function setup_database() {
global $wpdb, $table_prefix;
$table_name = "{$table_prefix}pantheon_sessions";
$wpdb->pantheon_sessions = $table_name;
$wpdb->tables[] = 'pantheon_sessions';
if ( get_option( 'pantheon_session_version' ) ) {
return;
}
$create_statement = "CREATE TABLE IF NOT EXISTS `{$table_name}` (
`id` bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY COMMENT 'An auto-incrementing id to serve as an index.',
`user_id` bigint(20) unsigned NOT NULL COMMENT 'The user_id corresponding to a session, or 0 for anonymous user.',
`session_id` varchar(128) NOT NULL DEFAULT '' COMMENT 'A session ID. The value is generated by plugin''s session handlers.',
`secure_session_id` varchar(128) NOT NULL DEFAULT '' COMMENT 'Secure session ID. The value is generated by plugin''s session handlers.',
`ip_address` varchar(128) NOT NULL DEFAULT '' COMMENT 'The IP address that last used this session ID.',
`datetime` datetime DEFAULT NULL COMMENT 'The datetime value when this session last requested a page. Old records are purged by PHP automatically.',
`data` mediumblob COMMENT 'The serialized contents of \$_SESSION, an array of name/value pairs that persists across page requests by this session ID. Plugin loads \$_SESSION from here at the start of each request and saves it at the end.',
KEY `session_id` (`session_id`),
KEY `secure_session_id` (`secure_session_id`)
)";
// phpcs:ignore
$wpdb->query( $create_statement );
update_option( 'pantheon_session_version', PANTHEON_SESSIONS_VERSION );
}
/**
* Sets the user id value to the session when the user logs in.
*
* @param string $logged_in_cookie Cooke name.
* @param integer $expire When the cookie is set to expire.
* @param integer $expiration When the cookie is set to expire.
* @param integer $user_id Id for the logged-in user.
*/
public static function action_set_logged_in_cookie( $logged_in_cookie, $expire, $expiration, $user_id ) {
$session = Session::get_by_sid( session_id() );
if ( $session ) {
$session->set_user_id( $user_id );
}
}
/**
* Clears the user id value from the session when the user logs out.
*/
public static function action_clear_auth_cookie() {
$session = Session::get_by_sid( session_id() );
if ( $session ) {
$session->set_user_id( 0 );
}
}
/**
* Force the plugin to be the first loaded
*/
public static function force_first_load() {
$path = str_replace( WP_PLUGIN_DIR . '/', '', __FILE__ );
$plugins = get_option( 'active_plugins' );
if ( $plugins ) {
$key = array_search( $path, $plugins, true );
if ( $key ) {
array_splice( $plugins, $key, 1 );
array_unshift( $plugins, $path );
update_option( 'active_plugins', $plugins );
}
}
}
}
/**
* Release the kraken!
*
* @return object
*/
function Pantheon_Sessions() {
return Pantheon_Sessions::get_instance();
}
add_action( 'activated_plugin', 'Pantheon_Sessions::force_first_load' );
Pantheon_Sessions();

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=== WordPress Native PHP Sessions ===
Contributors: getpantheon, outlandish josh, mpvanwinkle77, danielbachhuber, andrew.taylor, jazzs3quence, stovak, jspellman
Tags: comments, sessions
Requires at least: 4.7
Tested up to: 6.2.2
Stable tag: 1.3.6
Requires PHP: 5.4
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Use native PHP sessions and stay horizontally scalable. Better living through superior technology.
== Description ==
[![Build Status](https://travis-ci.org/pantheon-systems/wp-native-php-sessions.svg?branch=master)](https://travis-ci.org/pantheon-systems/wp-native-php-sessions) [![CircleCI](https://circleci.com/gh/pantheon-systems/wp-native-php-sessions/tree/master.svg?style=svg)](https://circleci.com/gh/pantheon-systems/wp-native-php-sessions/tree/master)
WordPress core does not use PHP sessions, but sometimes they are required by your use-case, a plugin or theme.
This plugin implements PHP's native session handlers, backed by the WordPress database. This allows plugins, themes, and custom code to safely use PHP `$_SESSION`s in a distributed environment where PHP's default tempfile storage just won't work.
Note that primary development is on GitHub if you would like to contribute:
https://github.com/pantheon-systems/wp-native-php-sessions
== Installation ==
1. Upload to the `/wp-content/plugins/` directory
2. Activate the plugin through the 'Plugins' menu in WordPress
That's it!
== Configuration ==
By default the session lifetime is set to 0, which is until the browser is closed.
To override this use the `pantheon_session_expiration` filter before the WordPress Native PHP Sessions plugin is loaded. For example a small Must-use plugin (a.k.a. mu-plugin) could contain:
<?php
function my_session_expiration_override() {
return 60*60*4; // 4 hours
}
add_filter( 'pantheon_session_expiration', 'my_session_expiration_override' );
== Contributing ==
See [CONTRIBUTING.md](https://github.com/pantheon-systems/wp-native-php-sessions/blob/main/CONTRIBUTING.md) for information on contributing.
== Frequently Asked Questions ==
= Why not use another session plugin? =
This implements the built-in PHP session handling functions, rather than introducing anything custom. That way you can use built-in language functions like the `$_SESSION` superglobal and `session_start()` in your code. Everything else will "just work".
= Why store them in the database? =
PHP's fallback default functionality is to allow sessions to be stored in a temporary file. This is what most code that invokes sessions uses by default, and in simple use-cases it works, which is why so many plugins do it.
However, if you intend to scale your application, local tempfiles are a dangerous choice. They are not shared between different instances of the application, producing erratic behavior that can be impossible to debug. By storing them in the database the state of the sessions is shared across all application instances.
== Troubleshooting ==
If you see an error like "Fatal error: session_start(): Failed to initialize storage module:" or "Warning: ini_set(): A session is active.", then you likely have a plugin that is starting a session before WP Native PHP Sessions is loading.
To fix, create a new file at `wp-content/mu-plugins/000-loader.php` and include the following:
<?php
require_once WP_PLUGIN_DIR . '/wp-native-php-sessions/pantheon-sessions.php';
This mu-plugin will load WP Native PHP Sessions before all other plugins, while letting you still use the WordPress plugin updater to keep the plugin up-to-date.
== Changelog ==
= 1.3.6 (June 1, 2023) =
* Fixes PHP 8.2 deprecated dynamic property error [[#251](https://github.com/pantheon-systems/wp-native-php-sessions/pull/251)] (props @miguelaxcar)
* Update CONTRIBUTING.md [[#252](https://github.com/pantheon-systems/wp-native-php-sessions/pull/252)].
* Update informational Error message for the case of headers already sent [[#249](https://github.com/pantheon-systems/wp-native-php-sessions/pull/249)].
* Add pantheon-wp-coding-standards [[#247](https://github.com/pantheon-systems/wp-native-php-sessions/pull/247)].
= 1.3.5 (April 7, 2023) =
* Bump yoast/phpunit-polyfills from 1.0.4 to 1.0.5 [[#245](https://github.com/pantheon-systems/wp-native-php-sessions/pull/245)].
* Bump tested up to version
= 1.3.4 (February 7, 2023) =
* Add fallback for $session->get_data() [[#237(https://github.com/pantheon-systems/wp-native-php-sessions/pull/237)]] (reported [on WordPress.org](https://wordpress.org/support/topic/php-warning-session_start-failed-to-read-session-data-user/))
* Update CODEOWNERS file [[#239](https://github.com/pantheon-systems/wp-native-php-sessions/pull/239)]
* Fix GPL license in `composer.json` file [[#236](https://github.com/pantheon-systems/wp-native-php-sessions/pull/236)]
* Bump grunt from 1.5.3 to 1.6.1 [[#235](https://github.com/pantheon-systems/wp-native-php-sessions/pull/235)]
= 1.3.3 (January 25, 2023) =
* Bump version in pantheon-sessions.php [[#234](https://github.com/pantheon-systems/wp-native-php-sessions/pull/234)].
= 1.3.2 (January 25, 2023) =
* PHP 8.2 compatibility [[#232](https://github.com/pantheon-systems/wp-native-php-sessions/pull/232)].
* Bump dealerdirect/phpcodesniffer-composer-installer from 0.7.2 to 1.0.0 [[#229](https://github.com/pantheon-systems/wp-native-php-sessions/pull/229)].
* Update images for lint and test-behat jobs [[#228](https://github.com/pantheon-systems/wp-native-php-sessions/pull/228)].
= 1.3.1 (December 5, 2022) =
* Document session lifetime handling [[#224](https://github.com/pantheon-systems/wp-native-php-sessions/pull/224)].
* Make dependabot target develop branch [[#226](https://github.com/pantheon-systems/wp-native-php-sessions/pull/226)].
* Ignore `.wordpress-org` directory [[#223](https://github.com/pantheon-systems/wp-native-php-sessions/pull/223)].
= 1.3.0 (November 28th, 2022) =
* Added CONTRIBUTING.MD and GitHub action to automate deployments to wp.org. [[#219](https://github.com/pantheon-systems/wp-native-php-sessions/pull/219)]
= 1.2.5 (October 28, 2022) =
* Added `#[ReturnTypeWillChange]` where required to silence deprecation warnings in PHP 8.1. [[#216](https://github.com/pantheon-systems/wp-native-php-sessions/pull/216)]
= 1.2.4 (September 14th, 2021) =
* Increases data blob size from 64k to 16M for new session tables; existing tables will need to manually modify the column if they want to apply this change [[#193](https://github.com/pantheon-systems/wp-native-php-sessions/pull/193)].
= 1.2.3 (April 9th, 2021) =
* Assigns the table name to a variable before using in query [[#188](https://github.com/pantheon-systems/wp-native-php-sessions/pull/188)].
= 1.2.2 (March 29th, 2021) =
* Includes an auto-incrementing `id` column for replication support [[#187](https://github.com/pantheon-systems/wp-native-php-sessions/pull/187)].
= 1.2.1 (September 17th, 2020) =
* Plugin textdomain needs to be the same as the WordPress.org slug [[#169](https://github.com/pantheon-systems/wp-native-php-sessions/pull/169)].
= 1.2.0 (May 18th, 2020) =
* Avoids using cookies for sessions when WP-CLI is executing [[#154](https://github.com/pantheon-systems/wp-native-php-sessions/pull/154)].
= 1.1.0 (April 23rd, 2020) =
* Avoids initializing PHP sessions when doing cron [[#149](https://github.com/pantheon-systems/wp-native-php-sessions/pull/149)].
= 1.0.0 (March 2nd, 2020) =
* Plugin is stable.
= 0.9.0 (October 14th, 2019) =
* Refactors session callback logic into `Session_Handler` abstraction, fixing PHP notice in PHP 7.3 [[#135](https://github.com/pantheon-systems/wp-native-php-sessions/pull/135)].
= 0.8.1 (August 19th, 2019) =
* Fixes handling of 'X-Forwarded-For' header in `get_client_ip_server()` [[#126](https://github.com/pantheon-systems/wp-native-php-sessions/pull/126)].
= 0.8.0 (August 13th, 2019) =
* Respects various `HTTP_*` sources for client IP address [[#122](https://github.com/pantheon-systems/wp-native-php-sessions/pull/122)].
= 0.7.0 (April 3rd, 2019) =
* Adds a safety check that restores `$wpdb` when it's missing.
= 0.6.9 (May 15th, 2018) =
* Ensures `_pantheon_session_destroy()` uses a return value.
= 0.6.8 (May 4th, 2018) =
* Switches to `E_USER_WARNING` instead of `E_WARNING` when triggering errors.
= 0.6.7 (April 26th, 2018) =
* Disables plugin load when `WP_INSTALLING`, because session table creation breaks installation process.
= 0.6.6 (March 8th, 2018) =
* Restores session instantiation when WP-CLI is executing, because not doing so causes other problems.
= 0.6.5 (February 6th, 2018) =
* Disables session instantiation when `defined( 'WP_CLI' ) && WP_CLI` because sessions don't work on CLI.
= 0.6.4 (October 10th, 2017) =
* Triggers PHP error when plugin fails to write session to database.
= 0.6.3 (September 29th, 2017) =
* Returns false when we entirely fail to generate a session.
= 0.6.2 (June 6th, 2017) =
* Syncs session user id when a user logs in and logs out.
= 0.6.1 (May 25th, 2017) =
* Bug fix: Prevents warning session_write_close() expects exactly 0 parameters, 1 given.
= 0.6.0 (November 23rd, 2016) =
* Bug fix: Prevents PHP fatal error in `session_write_close()` by running on WordPress' `shutdown` action, before `$wpdb` destructs itself.
* Bug fix: Stores the actual user id in the sessions table, instead of `(bool) $user_id`.
= 0.5 =
* Compatibility with PHP 7.
* Adds `pantheon_session_expiration` filter to modify session expiration value.
= 0.4 =
* Adjustment to `session_id()` behavior for wider compatibility
* Using superglobal for REQUEST_TIME as opposed to `time()`
= 0.3 =
* Fixes issue related to WordPress plugin load order
= 0.1 =
* Initial release