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diff --git a/phplib/session.inc b/phplib/session.inc
index 9f4cba2..8cb8fa9 100644
--- a/phplib/session.inc
+++ b/phplib/session.inc
@@ -1,469 +1,487 @@
<?php
/*
* Session Management for PHP3
*
* Copyright (c) 1998,1999 SH Online Dienst GmbH
* Boris Erdmann, Kristian Koehntopp
*
* $Id: session.inc,v 1.4 2005-01-14 10:42:48 adigeo Exp $
*
*/
class Session {
var $classname = "Session"; ## Needed for object serialization.
## Define the parameters of your session by either overwriting
## these values or by subclassing session (recommended).
var $magic = ""; ## Some string you should change.
var $mode = "cookie"; ## We propagate session IDs with cookies
var $fallback_mode; ## If this doesn't work, fall back...
var $lifetime = 0; ## 0 = do session cookies, else minutes
var $cookie_domain = ""; ## If set, the domain for which the
## session cookie is set.
var $gc_time = 1440; ## Purge all session data older than 1440 minutes.
var $gc_probability = 1; ## Garbage collect probability in percent
var $auto_init = ""; ## Name of the autoinit-File, if any.
var $secure_auto_init = 1; ## Set to 0 only, if all pages call
## page_close() guaranteed.
var $allowcache = "private"; ## Set this to 'private' to allow private
## caching; set this to 'public' to allow
## public caching; set this to 'no' to
## never cache the page.
var $allowcache_expire = 0; ## If you allowcache, data expires in this
## many minutes.
var $that_class = ""; ## Name of data storage container
##
## End of parameters.
##
var $name; ## Session name
var $id; ## Unique Session ID
var $that;
var $pt = array(); ## This Array contains the registered things
var $in = false; ## Marker: Did we already include the autoinit file?
## register($things):
##
## call this function to register the things that should become persistent
function register($things) {
- $things = explode(",",$things);
- reset($things);
- while ( list(,$thing) = each($things) ) {
+ foreach (explode(",",$things) as $thing) {
$thing=trim($thing);
if ( $thing ) {
$this->pt[$thing] = true;
}
}
}
function is_registered($name) {
- if ($this->pt[$name] == true)
+ if (isset($this->pt[$name]) && $this->pt[$name] == true)
return true;
return false;
}
function unregister($things) {
- $things = explode(",", $things);
- reset($things);
- while (list(,$thing) = each($things)) {
+ foreach (explode(",",$things) as $thing) {
$thing = trim($thing);
if ($thing) {
unset($this->pt[$thing]);
}
}
}
+ function erase($things) {
+ foreach (explode(",",$things) as $thing) {
+ $thing = trim($thing);
+ if ($thing) {
+ $GLOBALS[$thing]=false;
+ }
+ }
+ }
+
+
## get_id():
##
## Propagate the session id according to mode and lifetime.
## Will create a new id if necessary. To take over abandoned sessions,
## one may provide the new session id as a parameter (not recommended).
function get_id($id = "") {
- $newid=true;
-
+ $newid = true;
+ //print "$id";
$this->name = $this->cookiename==""?$this->classname:$this->cookiename;
if ( "" == $id ) {
$newid=false;
switch ($this->mode) {
case "get":
if ("" == ($id = isset($_GET[$this->name]) ? $_GET[$this->name] : ""))
$id = isset($_POST[$this->name]) ? $_POST[$this->name] : "";
break;
case "cookie":
$id = isset($_COOKIE[$this->name]) ? $_COOKIE[$this->name] : "";
break;
default:
die("Your browser has cookies disabled");
break;
}
}
if ( "" == $id ) {
$newid=true;
$id = $this->that->ac_newid(md5(uniqid($this->magic)), $this->name);
}
switch ($this->mode) {
case "cookie":
if ( $newid && ( 0 == $this->lifetime ) ) {
SetCookie($this->name, $id, 0, "/", $this->cookie_domain);
}
if ( 0 < $this->lifetime ) {
SetCookie($this->name, $id, time()+$this->lifetime*60, "/", $this->cookie_domain);
}
break;
case "get":
if ( isset($_SERVER['QUERY_STRING']) ) {
$_SERVER['QUERY_STRING'] = preg_replace(
"/(^|&)".quotemeta(urlencode($this->name))."=".$id."(&|$)/",
"\\1", $_SERVER['QUERY_STRING']);
}
break;
default:
;
break;
}
$this->id = $id;
}
## put_id():
##
## Stop using the current session id (unset cookie, ...) and
## abandon a session.
function put_id() {
$this->name = $this->cookiename==""?$this->classname:$this->cookiename;
switch ($this->mode) {
case "inline":
die("Your browser has cookies disabled");
break;
case "get":
die("Your browser has cookies disabled");
break;
default:
SetCookie($this->name, "", 0, "/", $this->cookie_domain);
$_COOKIE[$this->name] = "";
break;
}
}
## delete():
##
## Delete the current session record and put the session id.
function delete() {
$this->that->ac_delete($this->id, $this->name);
$this->put_id();
}
## url($url):
##
## Helper function: returns $url concatenated with the current
## session $id.
function url($url){
//$url=preg_replace("/[&?]+$/", "", $url);
switch ($this->mode) {
case "get":
//$url .= ( strpos($url, "?") != false ? "&" : "?" ).
// urlencode($this->name)."=".$this->id;
break;
default:
;
break;
}
return $url;
}
function purl($url) {
print $this->url($url);
}
function self_url() {
return $this->url($_SERVER['PHP_SELF'].
((isset($_SERVER['QUERY_STRING']) && ("" != $_SERVER['QUERY_STRING'])) ? "?".$_SERVER['QUERY_STRING'] : ""));
}
function pself_url() {
print $this->self_url();
}
function hidden_session()
{
printf("<input type=\"hidden\" name=\"%s\" value=\"%s\">\n", $this->name, $this->id);
}
function add_query($qarray) {
if ((isset($_SERVER['QUERY_STRING']) && ("" != $_SERVER['QUERY_STRING']))
|| ($this->mode == "get")) {
$sep_char = "&";
} else {
$sep_char = "?";
}
$qstring = "";
while (list($k, $v) = each($qarray)) {
$qstring .= $sep_char . urlencode($k) . "=" . urlencode($v);
$sep_char = "&";
}
return $qstring;
}
function padd_query($qarray) {
print $this->add_query($qarray);
}
- ## serialize($prefix,&$str):
+ ## serialize($var,&$str):
##
- ## appends a serialized representation of $$prefix
+ ## appends a serialized representation of $$var
## at the end of $str.
##
## To be able to serialize an object, the object must implement
## a variable $classname (containing the name of the class as string)
## and a variable $persistent_slots (containing the names of the slots
## to be saved as an array of strings).
##
## You don't need to know...
- function serialize($prefix, &$str) {
+ function serialize($var, &$str) {
static $t,$l,$k;
- ## Determine the type of $$prefix
- eval("\$t = gettype(\$$prefix);");
+ #print "$str <br/>";
+ ## Determine the type of $$var
+ eval("\$t = gettype(\$$var);");
switch ( $t ) {
case "array":
- ## $$prefix is an array. Enumerate the elements and serialize them.
- eval("reset(\$$prefix); \$l = gettype(list(\$k)=each(\$$prefix));");
- $str .= "\$$prefix = array(); ";
+ ## $$var is an array. Enumerate the elements and serialize them.
+ eval("reset(\$$var); \$l = gettype(list(\$k)=each(\$$var));");
+ $str .= "\$$var = array(); ";
while ( "array" == $l ) {
## Structural recursion
- $this->serialize($prefix."['".preg_replace("/([\\\'])/", "\\\\1", $k)."']", $str);
- eval("\$l = gettype(list(\$k)=each(\$$prefix));");
+ $this->serialize($var."['".preg_replace("/([\\\'])/", "\\\\1", $k)."']", $str);
+ eval("\$l = gettype(list(\$k)=each(\$$var));");
}
break;
case "object":
- ## $$prefix is an object. Enumerate the slots and serialize them.
- eval("\$k = \$${prefix}->classname; \$l = reset(\$${prefix}->persistent_slots);");
- $str.="\$$prefix = new $k; ";
- while ( $l ) {
- ## Structural recursion.
- $this->serialize($prefix."->".$l,$str);
- eval("\$l = next(\$${prefix}->persistent_slots);");
+ ## $$var is an object. Enumerate the slots and serialize them.
+ eval("\$k = \$$var->classname; \$l = reset(\$$var->persistent_slots);");
+ if ($k) {
+ $str.="\$$var = new $k; ";
+ while ( $l ) {
+ ## Structural recursion.
+ $this->serialize($var."->".$l,$str);
+ eval("\$l = next(\$$var->persistent_slots);");
+ }
}
-
break;
default:
- ## $$prefix is an atom. Extract it to $l, then generate code.
- eval("\$l = \$$prefix;");
- $str.="\$$prefix = '".preg_replace("/([\\\\'])/", "\\\\1", $l)."'; ";
-
-
+ ## $$var is an atom. Extract it to $l, then generate code.
+ eval("\$l = \$$var;");
+ $str.="\$$var = '".preg_replace("/([\\\\'])/", "\\\\1", $l)."'; ";
break;
}
}
function get_lock() {
$this->that->ac_get_lock();
}
function release_lock() {
$this->that->ac_release_lock();
}
## freeze():
##
## freezes all registered things ( scalar variables, arrays, objects ) into
## a database table
function freeze() {
+ global $auth;
+ unset($auth->db); // PDO objects can't be serialized and we don't need this anyway
$str="";
-
- $this->serialize("this->in",$str);
- $this->serialize("this->pt",$str);
-
- reset($this->pt);
- while ( list($thing) = each($this->pt) ) {
+ $arr=array();
+ #print_r($this->in);
+ //$this->serialize("this->in",$str);
+ //$this->serialize("this->pt",$str);
+ foreach ($this->pt as $thing=>$val) {
$thing=trim($thing);
if ( $thing ) {
- $this->serialize("GLOBALS['".$thing."']",$str);
+ //$this->serialize("GLOBALS['".$thing."']", $str); //php3 serialize was broken, use our own.
+ $arr[$thing] = $GLOBALS[$thing];
}
}
-
+ $str=serialize($arr);
+ //print_r(unserialize($str));
$r = $this->that->ac_store($this->id, $this->name, $str);
$this->release_lock();
- if(!$r) $this->that->ac_halt("Session: freeze() failed.");
+
+ if (!$r) $this->that->ac_halt("Session: freeze() failed.");
}
## thaw:
##
## Reload frozen variables from the database and microwave them.
function thaw() {
$this->get_lock();
$vals = $this->that->ac_get_value($this->id, $this->name);
- eval(sprintf(";%s",$vals));
+ $arr = unserialize($vals); // new serialised data req. php => 4.07
+ if (is_array($arr)) {
+ foreach($arr as $k=>$v) {
+ $this->pt[$k]=1;
+ $GLOBALS[$k]=$v;
+ }
+ }
+ //print "<pre>";print_r($GLOBALS['auth']);print "</pre>";
+ //eval(sprintf(";%s", $vals));
}
##
## Garbage collection
##
## Destroy all session data older than this
##
// commented out on 18/02/2004
#function gc() {
# $this->that->ac_gc($this->gc_time, $this->name);
#}
##
## Variable precedence functions
##
function reimport_get_vars() {
$this->reimport_any_vars("_GET");
}
function reimport_post_vars() {
$this->reimport_any_vars("_POST");
}
function reimport_cookie_vars() {
$this->reimport_any_vars("_COOKIE");
}
function reimport_any_vars($arrayname) {
global $$arrayname;
+
if (!is_array($$arrayname))
return;
- reset($$arrayname);
- while(list($key, $val) = each($$arrayname)) {
+ foreach ($$arrayname as $key=>$val) {
$GLOBALS[$key] = $val;
}
}
##
## All this is support infrastructure for the start() method
##
function set_container(){
$name = $this->that_class;
$this->that = new $name;
$this->that->ac_start();
}
function set_tokenname(){
$this->name = $this->cookiename==""?$this->classname:$this->cookiename;
}
function release_token(){
if ( isset($this->fallback_mode)
&& ( "get" == $this->fallback_mode )
&& ( "cookie" == $this->mode )
&& ( ! isset($_COOKIE[$this->name]) ) ) {
if ( isset($_GET[$this->name]) ) {
$this->mode = $this->fallback_mode;
} else {
header("Status: 302 Moved Temporarily");
$this->get_id($sid);
$this->mode = $this->fallback_mode;
if( isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' ){
## You will need to fix suexec as well, if you use Apache and CGI PHP
$PROTOCOL='https';
} else {
$PROTOCOL='http';
}
header("Location: ". $PROTOCOL. "://".$_SERVER['HTTP_HOST'].$this->self_url());
exit;
}
}
}
function put_headers() {
# Allowing a limited amount of caching, as suggested by
# Padraic Renaghan on phplib@shonline.de.
# Note that in HTTP/1.1 the Cache-Control headers override the Expires
# headers and HTTP/1.0 ignores headers it does not recognize (e.g,
# Cache-Control). Mulitple Cache-Control directives are split into
# mulitple headers to better support MSIE 4.x.
switch ($this->allowcache) {
case "public":
$exp_gmt = gmdate("D, d M Y H:i:s", time() + $this->allowcache_expire * 60) . " GMT";
$mod_gmt = gmdate("D, d M Y H:i:s", getlastmod()) . " GMT";
header("Expires: " . $exp_gmt);
header("Last-Modified: " . $mod_gmt);
header("Cache-Control: public");
header("Cache-Control: max-age=" . $this->allowcache_expire * 60);
break;
case "jl";
break;
case "private":
$mod_gmt = gmdate("D, d M Y H:i:s", getlastmod()) . " GMT";
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . $mod_gmt);
header("Cache-Control: private");
header("Cache-Control: max-age=" . $this->allowcache_expire * 60);
break;
default:
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-cache");
header("Pragma: no-cache");
break;
}
}
##
## Garbage collection
##
## Destroy all session data older than this
##
function gc() {
srand(time());
if ((rand()%100) < $this->gc_probability) {
$this->that->ac_gc($this->gc_time, $this->name);
}
}
##
## Initialization
##
function start($sid = "") {
$this->set_container();
$this->set_tokenname();
$this->release_token($sid);
$this->put_headers();
$this->get_id($sid);
$this->thaw();
$this->gc();
}
}
?>

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