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authorAndreas Baumann <mail@andreasbaumann.cc>2020-02-01 09:05:48 +0100
committerAndreas Baumann <mail@andreasbaumann.cc>2020-02-01 09:05:48 +0100
commit6854cb3f4d8219cf1829e32122eb2502a916eae9 (patch)
tree350feb504587d932e02837a1442b059759927646 /vendor/adodb/adodb-php/session/old/adodb-cryptsession.php
initial checkin
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+<?php
+/*
+@version v5.20.14 06-Jan-2019
+@copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved.
+@copyright (c) 2014 Damien Regad, Mark Newnham and the ADOdb community
+ Released under both BSD license and Lesser GPL library license.
+ Whenever there is any discrepancy between the two licenses,
+ the BSD license will take precedence.
+ Made table name configurable - by David Johnson djohnson@inpro.net
+ Encryption by Ari Kuorikoski <ari.kuorikoski@finebyte.com>
+
+ Set tabs to 4 for best viewing.
+
+ Latest version is available at http://adodb.org/
+ ======================================================================
+
+ This file provides PHP4 session management using the ADODB database
+wrapper library.
+
+ Example
+ =======
+
+ include('adodb.inc.php');
+ #---------------------------------#
+ include('adodb-cryptsession.php');
+ #---------------------------------#
+ session_start();
+ session_register('AVAR');
+ $_SESSION['AVAR'] += 1;
+ print "
+-- \$_SESSION['AVAR']={$_SESSION['AVAR']}</p>";
+
+
+ Installation
+ ============
+ 1. Create a new database in MySQL or Access "sessions" like
+so:
+
+ create table sessions (
+ SESSKEY char(32) not null,
+ EXPIRY int(11) unsigned not null,
+ EXPIREREF varchar(64),
+ DATA CLOB,
+ primary key (sesskey)
+ );
+
+ 2. Then define the following parameters. You can either modify
+ this file, or define them before this file is included:
+
+ $ADODB_SESSION_DRIVER='database driver, eg. mysql or ibase';
+ $ADODB_SESSION_CONNECT='server to connect to';
+ $ADODB_SESSION_USER ='user';
+ $ADODB_SESSION_PWD ='password';
+ $ADODB_SESSION_DB ='database';
+ $ADODB_SESSION_TBL = 'sessions'
+
+ 3. Recommended is PHP 4.0.2 or later. There are documented
+session bugs in earlier versions of PHP.
+
+*/
+
+
+include_once('crypt.inc.php');
+
+if (!defined('_ADODB_LAYER')) {
+ include (dirname(__FILE__).'/adodb.inc.php');
+}
+
+ /* if database time and system time is difference is greater than this, then give warning */
+ define('ADODB_SESSION_SYNCH_SECS',60);
+
+if (!defined('ADODB_SESSION')) {
+
+ define('ADODB_SESSION',1);
+
+GLOBAL $ADODB_SESSION_CONNECT,
+ $ADODB_SESSION_DRIVER,
+ $ADODB_SESSION_USER,
+ $ADODB_SESSION_PWD,
+ $ADODB_SESSION_DB,
+ $ADODB_SESS_CONN,
+ $ADODB_SESS_LIFE,
+ $ADODB_SESS_DEBUG,
+ $ADODB_SESS_INSERT,
+ $ADODB_SESSION_EXPIRE_NOTIFY,
+ $ADODB_SESSION_TBL;
+
+ //$ADODB_SESS_DEBUG = true;
+
+ /* SET THE FOLLOWING PARAMETERS */
+if (empty($ADODB_SESSION_DRIVER)) {
+ $ADODB_SESSION_DRIVER='mysql';
+ $ADODB_SESSION_CONNECT='localhost';
+ $ADODB_SESSION_USER ='root';
+ $ADODB_SESSION_PWD ='';
+ $ADODB_SESSION_DB ='xphplens_2';
+}
+
+if (empty($ADODB_SESSION_TBL)){
+ $ADODB_SESSION_TBL = 'sessions';
+}
+
+if (empty($ADODB_SESSION_EXPIRE_NOTIFY)) {
+ $ADODB_SESSION_EXPIRE_NOTIFY = false;
+}
+
+function ADODB_Session_Key()
+{
+$ADODB_CRYPT_KEY = 'CRYPTED ADODB SESSIONS ROCK!';
+
+ /* USE THIS FUNCTION TO CREATE THE ENCRYPTION KEY FOR CRYPTED SESSIONS */
+ /* Crypt the used key, $ADODB_CRYPT_KEY as key and session_ID as SALT */
+ return crypt($ADODB_CRYPT_KEY, session_ID());
+}
+
+$ADODB_SESS_LIFE = ini_get('session.gc_maxlifetime');
+if ($ADODB_SESS_LIFE <= 1) {
+ // bug in PHP 4.0.3 pl 1 -- how about other versions?
+ //print "<h3>Session Error: PHP.INI setting <i>session.gc_maxlifetime</i>not set: $ADODB_SESS_LIFE</h3>";
+ $ADODB_SESS_LIFE=1440;
+}
+
+function adodb_sess_open($save_path, $session_name)
+{
+GLOBAL $ADODB_SESSION_CONNECT,
+ $ADODB_SESSION_DRIVER,
+ $ADODB_SESSION_USER,
+ $ADODB_SESSION_PWD,
+ $ADODB_SESSION_DB,
+ $ADODB_SESS_CONN,
+ $ADODB_SESS_DEBUG;
+
+ $ADODB_SESS_INSERT = false;
+
+ if (isset($ADODB_SESS_CONN)) return true;
+
+ $ADODB_SESS_CONN = ADONewConnection($ADODB_SESSION_DRIVER);
+ if (!empty($ADODB_SESS_DEBUG)) {
+ $ADODB_SESS_CONN->debug = true;
+ print" conn=$ADODB_SESSION_CONNECT user=$ADODB_SESSION_USER pwd=$ADODB_SESSION_PWD db=$ADODB_SESSION_DB ";
+ }
+ return $ADODB_SESS_CONN->PConnect($ADODB_SESSION_CONNECT,
+ $ADODB_SESSION_USER,$ADODB_SESSION_PWD,$ADODB_SESSION_DB);
+
+}
+
+function adodb_sess_close()
+{
+global $ADODB_SESS_CONN;
+
+ if ($ADODB_SESS_CONN) $ADODB_SESS_CONN->Close();
+ return true;
+}
+
+function adodb_sess_read($key)
+{
+$Crypt = new MD5Crypt;
+global $ADODB_SESS_CONN,$ADODB_SESS_INSERT,$ADODB_SESSION_TBL;
+ $rs = $ADODB_SESS_CONN->Execute("SELECT data FROM $ADODB_SESSION_TBL WHERE sesskey = '$key' AND expiry >= " . time());
+ if ($rs) {
+ if ($rs->EOF) {
+ $ADODB_SESS_INSERT = true;
+ $v = '';
+ } else {
+ // Decrypt session data
+ $v = rawurldecode($Crypt->Decrypt(reset($rs->fields), ADODB_Session_Key()));
+ }
+ $rs->Close();
+ return $v;
+ }
+ else $ADODB_SESS_INSERT = true;
+
+ return '';
+}
+
+function adodb_sess_write($key, $val)
+{
+$Crypt = new MD5Crypt;
+ global $ADODB_SESS_INSERT,$ADODB_SESS_CONN, $ADODB_SESS_LIFE, $ADODB_SESSION_TBL,$ADODB_SESSION_EXPIRE_NOTIFY;
+
+ $expiry = time() + $ADODB_SESS_LIFE;
+
+ // encrypt session data..
+ $val = $Crypt->Encrypt(rawurlencode($val), ADODB_Session_Key());
+
+ $arr = array('sesskey' => $key, 'expiry' => $expiry, 'data' => $val);
+ if ($ADODB_SESSION_EXPIRE_NOTIFY) {
+ $var = reset($ADODB_SESSION_EXPIRE_NOTIFY);
+ global $$var;
+ $arr['expireref'] = $$var;
+ }
+ $rs = $ADODB_SESS_CONN->Replace($ADODB_SESSION_TBL,
+ $arr,
+ 'sesskey',$autoQuote = true);
+
+ if (!$rs) {
+ ADOConnection::outp( '
+-- Session Replace: '.$ADODB_SESS_CONN->ErrorMsg().'</p>',false);
+ } else {
+ // bug in access driver (could be odbc?) means that info is not commited
+ // properly unless select statement executed in Win2000
+
+ if ($ADODB_SESS_CONN->databaseType == 'access') $rs = $ADODB_SESS_CONN->Execute("select sesskey from $ADODB_SESSION_TBL WHERE sesskey='$key'");
+ }
+ return isset($rs);
+}
+
+function adodb_sess_destroy($key)
+{
+ global $ADODB_SESS_CONN, $ADODB_SESSION_TBL,$ADODB_SESSION_EXPIRE_NOTIFY;
+
+ if ($ADODB_SESSION_EXPIRE_NOTIFY) {
+ reset($ADODB_SESSION_EXPIRE_NOTIFY);
+ $fn = next($ADODB_SESSION_EXPIRE_NOTIFY);
+ $savem = $ADODB_SESS_CONN->SetFetchMode(ADODB_FETCH_NUM);
+ $rs = $ADODB_SESS_CONN->Execute("SELECT expireref,sesskey FROM $ADODB_SESSION_TBL WHERE sesskey='$key'");
+ $ADODB_SESS_CONN->SetFetchMode($savem);
+ if ($rs) {
+ $ADODB_SESS_CONN->BeginTrans();
+ while (!$rs->EOF) {
+ $ref = $rs->fields[0];
+ $key = $rs->fields[1];
+ $fn($ref,$key);
+ $del = $ADODB_SESS_CONN->Execute("DELETE FROM $ADODB_SESSION_TBL WHERE sesskey='$key'");
+ $rs->MoveNext();
+ }
+ $ADODB_SESS_CONN->CommitTrans();
+ }
+ } else {
+ $qry = "DELETE FROM $ADODB_SESSION_TBL WHERE sesskey = '$key'";
+ $rs = $ADODB_SESS_CONN->Execute($qry);
+ }
+ return $rs ? true : false;
+}
+
+
+function adodb_sess_gc($maxlifetime) {
+ global $ADODB_SESS_CONN, $ADODB_SESSION_TBL,$ADODB_SESSION_EXPIRE_NOTIFY,$ADODB_SESS_DEBUG;
+
+ if ($ADODB_SESSION_EXPIRE_NOTIFY) {
+ reset($ADODB_SESSION_EXPIRE_NOTIFY);
+ $fn = next($ADODB_SESSION_EXPIRE_NOTIFY);
+ $savem = $ADODB_SESS_CONN->SetFetchMode(ADODB_FETCH_NUM);
+ $t = time();
+ $rs = $ADODB_SESS_CONN->Execute("SELECT expireref,sesskey FROM $ADODB_SESSION_TBL WHERE expiry < $t");
+ $ADODB_SESS_CONN->SetFetchMode($savem);
+ if ($rs) {
+ $ADODB_SESS_CONN->BeginTrans();
+ while (!$rs->EOF) {
+ $ref = $rs->fields[0];
+ $key = $rs->fields[1];
+ $fn($ref,$key);
+ //$del = $ADODB_SESS_CONN->Execute("DELETE FROM $ADODB_SESSION_TBL WHERE sesskey='$key'");
+ $rs->MoveNext();
+ }
+ $rs->Close();
+
+ $ADODB_SESS_CONN->Execute("DELETE FROM $ADODB_SESSION_TBL WHERE expiry < $t");
+ $ADODB_SESS_CONN->CommitTrans();
+ }
+ } else {
+ $qry = "DELETE FROM $ADODB_SESSION_TBL WHERE expiry < " . time();
+ $ADODB_SESS_CONN->Execute($qry);
+ }
+
+ // suggested by Cameron, "GaM3R" <gamr@outworld.cx>
+ if (defined('ADODB_SESSION_OPTIMIZE'))
+ {
+ global $ADODB_SESSION_DRIVER;
+
+ switch( $ADODB_SESSION_DRIVER ) {
+ case 'mysql':
+ case 'mysqlt':
+ $opt_qry = 'OPTIMIZE TABLE '.$ADODB_SESSION_TBL;
+ break;
+ case 'postgresql':
+ case 'postgresql7':
+ $opt_qry = 'VACUUM '.$ADODB_SESSION_TBL;
+ break;
+ }
+ }
+
+ if ($ADODB_SESS_CONN->dataProvider === 'oci8') $sql = 'select TO_CHAR('.($ADODB_SESS_CONN->sysTimeStamp).', \'RRRR-MM-DD HH24:MI:SS\') from '. $ADODB_SESSION_TBL;
+ else $sql = 'select '.$ADODB_SESS_CONN->sysTimeStamp.' from '. $ADODB_SESSION_TBL;
+
+ $rs = $ADODB_SESS_CONN->SelectLimit($sql,1);
+ if ($rs && !$rs->EOF) {
+
+ $dbts = reset($rs->fields);
+ $rs->Close();
+ $dbt = $ADODB_SESS_CONN->UnixTimeStamp($dbts);
+ $t = time();
+ if (abs($dbt - $t) >= ADODB_SESSION_SYNCH_SECS) {
+ $msg =
+ __FILE__.": Server time for webserver {$_SERVER['HTTP_HOST']} not in synch with database: database=$dbt ($dbts), webserver=$t (diff=".(abs($dbt-$t)/3600)." hrs)";
+ error_log($msg);
+ if ($ADODB_SESS_DEBUG) ADOConnection::outp("
+-- $msg</p>");
+ }
+ }
+
+ return true;
+}
+
+session_module_name('user');
+session_set_save_handler(
+ "adodb_sess_open",
+ "adodb_sess_close",
+ "adodb_sess_read",
+ "adodb_sess_write",
+ "adodb_sess_destroy",
+ "adodb_sess_gc");
+}
+
+/* TEST SCRIPT -- UNCOMMENT */
+/*
+if (0) {
+
+ session_start();
+ session_register('AVAR');
+ $_SESSION['AVAR'] += 1;
+ print "
+-- \$_SESSION['AVAR']={$_SESSION['AVAR']}</p>";
+}
+*/