custom user session handler + PHPSESSID in cookie
joseph conrad
I tried to implement my own session handler in order to keep control on
the process
the drawback I foun it is not creating and storing in my cookie the
PHPSESSID variable anymore.
reading te documentation it seems it should do it anyway
any advice?
cheers
jc
the session handler, from php website:
<?php
function open($save_path, $session_name)
{
global $sess_save_path, $sess_session_name;
$sess_save_path = $save_path;
$sess_session_name = $session_name;
return(true);
}
function close()
{
return(true);
}
/**
* Enter description here...
*
* @param unknown_type $id
* @return unknown
*/function read($id)
{
global $sess_save_path, $sess_session_name;
$sess_file = "$sess_save_path/sess_$id";
if ($fp = @fopen($sess_file, "r")) {
$sess_data = fread($fp, filesize($sess_file));
return($sess_data);
} else {
return(""); // Must return "" here.
}
}
/**
* Enter description here...
*
* @param unknown_type $id
* @param unknown_type $sess_data
* @return unknown
*/function write($id, $sess_data)
{
global $sess_save_path, $sess_session_name;
$sess_file = "$sess_save_path/sess_$id";
if ($fp = @fopen($sess_file, "w")) {
return(fwrite($fp, $sess_data));
} else {
return(false);
}
}
function destroy($id)
{
global $sess_save_path, $sess_session_name;
$sess_file = "$sess_save_path/sess_$id";
return(@unlink($sess_file));
}
/*********************************************
* WARNING - You will need to implement some *
* sort of garbage collection routine here. *
*********************************************/
function gc($maxlifetime)
{
return true;
}
#session_set_save_handler("open", "close", "read", "write", "destroy",
"gc");
#session_start();
// proceed to use sessions normally
?>
the sever configuration:
[Session]
; Handler used to store/retrieve data.
;session.save_handler = files
session.save_handler = user
; Argument passed to save_handler. In the case of files, this is the
path
; where data files are stored. Note: Windows users have to change this
; variable in order to use PHP's session functions.
; As of PHP 4.0.1, you can define the path as:
; session.save_path = "N;/path"
; where N is an integer. Instead of storing all the session files in
; /path, what this will do is use subdirectories N-levels deep, and
; store the session data in those directories. This is useful if you
; or your OS have problems with lots of files in one directory, and is
; a more efficient layout for servers that handle lots of sessions.
; NOTE 1: PHP will not create this directory structure automatically.
; You can use the script in the ext/session dir for that
purpose.
; NOTE 2: See the section on garbage collection below if you choose to
; use subdirectories for session storage
;session.save_path = /tmp
session.save_path = "D:/tmp"
;session.save_path = "Z:/2"
;session.save_path = "http://ce000730"
;session.save_path = "ftp://diego:123...@127.0.0.1"
; Whether to use cookies.
session.use_cookies = 1
; This option enables administrators to make their users invulnerable
to
; attacks which involve passing session ids in URLs; defaults to 0.
session.use_only_cookies = 1
; Name of the session (used as cookie name).
;session.name = PHPSESSID
session.name = php_session
; Initialize session on request startup.
session.auto_start = 0
; Lifetime in seconds of cookie or, if 0, until browser is restarted.
session.cookie_lifetime = 0
; The path for which the cookie is valid.
session.cookie_path = /
; The domain for which the cookie is valid.
session.cookie_domain =
; Handler used to serialize data. php is the standard serializer of
PHP.
session.serialize_handler = php
; Define the probability that the 'garbage collection' process is
started
; on every session initialization.
; The probability is calculated by using gc_probability/gc_divisor,
; e.g. 1/100 means there is a 1% chance that the GC process starts
; on each request.
session.gc_probability = 1
session.gc_divisor = 100
; After this number of seconds, stored data will be seen as 'garbage'
and
; cleaned up by the garbage collection process.
session.gc_maxlifetime = 1440
; NOTE: If you are using the subdirectory option for storing session
files
; (see session.save_path above), then garbage collection does
*not*
; happen automatically. You will need to do your own garbage
; collection through a shell script, cron entry, or some other
method.
; For example, the following script would is the equivalent of
; setting session.gc_maxlifetime to 1440 (1440 seconds = 24
minutes):
; cd /path/to/sessions; find -cmin +24 | xargs rm
; PHP 4.2 and less have an undocumented feature/bug that allows you to
; to initialize a session variable in the global scope, albeit
register_globals
; is disabled. PHP 4.3 and later will warn you, if this feature is
used.
; You can disable the feature and the warning separately. At this time,
; the warning is only displayed, if bug_compat_42 is enabled.
session.bug_compat_42 = 1
session.bug_compat_warn = 1
; Check HTTP Referer to invalidate externally stored URLs containing
ids.
; HTTP_REFERER has to contain this substring for the session to be
; considered as valid.
session.referer_check =
; How many bytes to read from the file.
session.entropy_length = 0
; Specified here to create the session id.
session.entropy_file =
;session.entropy_length = 16
;session.entropy_file = /dev/urandom
; Set to {nocache,private,public,} to determine HTTP caching aspects
; or leave this empty to avoid sending anti-caching headers.
session.cache_limiter = nocache
; Document expires after n minutes.
session.cache_expire = 180
; trans sid support is disabled by default.
; Use of trans sid may risk your users security.
; Use this option with caution.
; - User may send URL contains active session ID
; to other person via. email/irc/etc.
; - URL that contains active session ID may be stored
; in publically accessible computer.
; - User may access your site with the same session ID
; always using URL stored in browser's history or bookmarks.
session.use_trans_sid = 0
; The URL rewriter will look for URLs in a defined set of HTML tags.
; form/fieldset are special; if you include them here, the rewriter
will
; add a hidden <input> field with the info which is otherwise appended
; to URLs. If you want XHTML conformity, remove the form entry.
; Note that all valid entries require a "=", even if no value follows.
url_rewriter.tags =
"a=href,area=href,frame=src,input=src,form=,fieldset="