Sessions issue

[Capnstank]

Hi everyone,

 

I'm attempting to use my Fedora 11 box as a server to host a PHP Based Torrent tracker. PHP, HTTPD and MySQL all installed fine and are working for basic functionality but I noticed that in some of the php files I was provided for the tracker service are returning session errors (see below)

 

Notice: Undefined index: add in /usr/local/apache/tracker/administration/bta_funcs.php on line 241

Notice: Undefined index: retiredmgmt in /usr/local/apache/tracker/administration/bta_funcs.php on line 246

Notice: Undefined index: ipban in /usr/local/apache/tracker/administration/bta_funcs.php on line 254

etc...
etc...
etc...

 

I checked out the project website for the software and found someone else who shared the same issue (two years ago) but never followed up on their thread to state whether or not they solved it. The project author simply suggested to check if sessions are working properly on the PHP install.

 

How would I do that?

[trq]

How do you know these are session related errors? These errors simply mean you are attempting to access array indexes that don't exist.

 

Can you post some relevant code?

[Capnstank]

That's exactly what I thought when I first caught the error and dove into the code looking for when values were initialized/called etc. I had no success and made a post to the Project's forum page (https://sourceforge.net/projects/phpbttrkplus/forums/forum/411673/topic/1486555)

 

As you can see the project host indicated that the sessions were not correctly initialized in my PHP install. Here's the session code from php.ini

[session]
; Handler used to store/retrieve data.
; http://php.net/session.save-handler
session.save_handler = files

; 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.
;
; The path can be defined 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
;
; The file storage module creates files using mode 600 by default.
; You can change that by using
;
;     session.save_path = "N;MODE;/path"
;
; where MODE is the octal representation of the mode. Note that this
; does not overwrite the process's umask.
; http://php.net/session.save-path
;session.save_path = "/tmp"

; Whether to use cookies.
; http://php.net/session.use-cookies
session.use_cookies = 1

; http://php.net/session.cookie-secure
;session.cookie_secure =

; This option forces PHP to fetch and use a cookie for storing and maintaining
; the session id. We encourage this operation as it's very helpful in combatting
; session hijacking when not specifying and managing your own session id. It is
; not the end all be all of session hijacking defense, but it's a good start.
; http://php.net/session.use-only-cookies
session.use_only_cookies = 1

; Name of the session (used as cookie name).
; http://php.net/session.name
session.name = PHPSESSID

; Initialize session on request startup.
; http://php.net/session.auto-start
session.auto_start = 0

; Lifetime in seconds of cookie or, if 0, until browser is restarted.
; http://php.net/session.cookie-lifetime
session.cookie_lifetime = 0

; The path for which the cookie is valid.
; http://php.net/session.cookie-path
session.cookie_path = /

; The domain for which the cookie is valid.
; http://php.net/session.cookie-domain
session.cookie_domain =

; Whether or not to add the httpOnly flag to the cookie, which makes it inaccessible to browser scripting languages such as JavaScript.
; http://php.net/session.cookie-httponly
session.cookie_httponly = 

; Handler used to serialize data.  php is the standard serializer of PHP.
; http://php.net/session.serialize-handler
session.serialize_handler = php

; Defines the probability that the 'garbage collection' process is started
; on every session initialization. The probability is calculated by using
; gc_probability/gc_divisor. Where session.gc_probability is the numerator
; and gc_divisor is the denominator in the equation. Setting this value to 1
; when the session.gc_divisor value is 100 will give you approximately a 1% chance
; the gc will run on any give request.
; Default Value: 1
; Development Value: 1
; Production Value: 1
; http://php.net/session.gc-probability
session.gc_probability = 1

; Defines the probability that the 'garbage collection' process is started on every
; session initialization. The probability is calculated by using the following equation: 
; gc_probability/gc_divisor. Where session.gc_probability is the numerator and
; session.gc_divisor is the denominator in the equation. Setting this value to 1
; when the session.gc_divisor value is 100 will give you approximately a 1% chance
; the gc will run on any give request. Increasing this value to 1000 will give you
; a 0.1% chance the gc will run on any give request. For high volume production servers,
; this is a more efficient approach.
; Default Value: 100
; Development Value: 1000
; Production Value: 1000
; http://php.net/session.gc-divisor
session.gc_divisor = 1000

; After this number of seconds, stored data will be seen as 'garbage' and
; cleaned up by the garbage collection process.
; http://php.net/session.gc-maxlifetime
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, even when 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. This feature
; introduces some serious security problems if not handled correctly. It's
; recommended that you do not use this feature on production servers. But you
; should enable this on development servers and enable the warning as well. If you
; do not enable the feature on development servers, you won't be warned when it's
; used and debugging errors caused by this can be difficult to track down.
; Default Value: On
; Development Value: On
; Production Value: Off
; http://php.net/session.bug-compat-42
session.bug_compat_42 = On

; This setting controls whether or not you are warned by PHP when initializing a
; session value into the global space. session.bug_compat_42 must be enabled before
; these warnings can be issued by PHP. See the directive above for more information.
; Default Value: On
; Development Value: On
; Production Value: Off
; http://php.net/session.bug-compat-warn
session.bug_compat_warn = On

; 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.
; http://php.net/session.referer-check
session.referer_check =

; How many bytes to read from the file.
; http://php.net/session.entropy-length
session.entropy_length = 0

; Specified here to create the session id.
; http://php.net/session.entropy-file
;session.entropy_file = /dev/urandom
session.entropy_file =

; http://php.net/session.entropy-length
;session.entropy_length = 16

; Set to {nocache,private,public,} to determine HTTP caching aspects
; or leave this empty to avoid sending anti-caching headers.
; http://php.net/session.cache-limiter
session.cache_limiter = nocache

; Document expires after n minutes.
; http://php.net/session.cache-expire
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.
; http://php.net/session.use-trans-sid
session.use_trans_sid = 0

; Select a hash function for use in generating session ids.
; Possible Values 
;   0  (MD5 128 bits)
;   1  (SHA-1 160 bits)
; http://php.net/session.hash-function
session.hash_function = 0

; Define how many bits are stored in each character when converting
; the binary hash data to something readable.
; Possible values:
;   4  (4 bits: 0-9, a-f)
;   5  (5 bits: 0-9, a-v)
;   6  (6 bits: 0-9, a-z, A-Z, "-", ",")
; Default Value: 4
; Development Value: 5
; Production Value: 5
; http://php.net/session.hash-bits-per-character
session.hash_bits_per_character = 5

 

Any insight guys?