Your IP : 172.28.240.42
<?php
/*
+--------------------------------------------------------------------------
| Invision Power Board
| =============================================
| by Matthew Mecham
| (c) 2001 - 2006 Invision Power Services, Inc.
| Nullified by Terabyte
| =============================================
|
|
|
|
+---------------------------------------------------------------------------
| > $Date: 2005-10-10 16:01:09 +0100 (Mon, 10 Oct 2005) $
| > $Revision: 5 $
| > $Author: josh $
+---------------------------------------------------------------------------
|
| > Multi function library
| > Module written by Matt Mecham
| > Date started: 14th February 2002
|
| > Module Version Number: 1.0.0
| > Quality Checked: Wed 15 Sept. 2004
+--------------------------------------------------------------------------
*/
/**
* Main IPSclass class.
*
* This is the main class which is referenced via $ipsclass throughout
* all the IPB sub-classes and modules. It holds amongst others:
* <code>
* // Object from class_forums.php class
* $ipsclass->forums
* // Object from class_display.php class
* $ipsclass->print
* // Object from SQL classes
* $ipsclass->db
* // Array of parsed caches (from table cache_store)
* $ipsclass->cache
* // Array of settings variables (taken from parsed setting cache)
* $ipsclass->vars
* // Array of member variables (taken from class_session::$member)
* $ipsclass->member
* // Array of sanitized _GET _POST data (run via parse_clean_value)
* $ipsclass->input
* // Array of language strings loaded via separate lang files
* $ipsclass->lang
* // Variable: Full base URL with session ID if required
* $ipsclass->base_url
* // Array of compiled template objects
* $ipsclass->compiled_templates
* </code>
* Recommended method of passing $ipsclass through modules
* <code>
* $module = new module();
* $module->ipsclass =& $ipsclass; // Create reference
* </code>
*
* @package InvisionPowerBoard
* @author Matt Mecham
* @copyright Invision Power Services, Inc.
* @version 2.1
*/
if ( ! defined( 'IPSCLASS_LOADED' ) )
{
/**
* IPSCLASS loaded Flag
*/
define( 'IPSCLASS_LOADED', 1 );
}
/**
* Main ipsclass class.
*
* This class holds all the non-class specific functions
*
* @package InvisionPowerBoard
* @author Matt Mecham
* @version 2.1
*/
class ipsclass {
/**
* HUMAN version string (Eg: v2.1 BETA 1)
*
* @var string
*/
var $version = "v2.1.2";
/**
* LONG version number (Eg: 21000)
*
* @var string
*/
var $acpversion = '21008';
/**
* Member Array
*
* @var array
*/
var $member = array();
/**
* _GET _POST Input Array
*
* @var array
*/
var $input = array();
/**
* Setting variables array
*
* @var array
*/
var $vars = array();
/**
* Language strings array
*
* @var array
*/
var $lang = array();
/**
* Skin variables array
*
* @var array
*/
var $skin = array();
/**
* Compiled loaded templates
*
* @var array
*/
var $compiled_templates = array();
/**
* Loaded templates inc. ID
*
* @var array
*/
var $loaded_templates = array();
/**
* Cache array
*
* @var array
*/
var $cache = array();
/**
* Session ID
*
* @var string
*/
var $session_id = "";
/**
* Base URL
*
* @var string
*/
var $base_url = "";
/**
* Language ID; corresponds to cache/lang_cache/{folder}/
*
* @var string
*/
var $lang_id = "";
/**
* Session type (cookie or url)
*
* @var string
*/
var $session_type = "";
/**#@+
* @access public
* @var string
*/
var $lastclick = "";
var $location = "";
var $debug_html = "";
var $perm_id = "";
var $offset = "";
var $num_format = "";
var $query_string_safe = '';
/**
* MD5 Check variable
*/
var $md5_check = '';
/**#@-*/
var $server_load = 0;
var $can_use_fancy_js = 0;
var $offset_set = 0;
var $allow_unicode = 1;
var $get_magic_quotes = 0;
/**#@+
* @access public
* @var object
*/
var $converge;
var $print;
var $sess;
var $forums;
/**#@-*/
/**#@+
* @access public
* @var array
*/
var $topic_cache = array();
var $time_formats = array();
var $time_options = array();
var $today_array = array();
/**
* User's browser array (version, browser)
*/
var $browser;
/**#@-*/
/*-------------------------------------------------------------------------*/
// Set up some standards to save CPU later
/*-------------------------------------------------------------------------*/
/**
* Initial ipsclass, set up some variables for later
* Populates:
* $this->time_options, $this->num_format, $this->get_magic_quotes, $this->ip_address
* $this->user_agent, $this->browser, $this->operating_system
*
* @return void;
*/
function initiate_ipsclass()
{
$this->time_options = array( 'JOINED' => $this->vars['clock_joined'],
'SHORT' => $this->vars['clock_short'],
'LONG' => $this->vars['clock_long'],
'TINY' => $this->vars['clock_tiny'] ? $this->vars['clock_tiny'] : 'j M Y - G:i',
'DATE' => $this->vars['clock_date'] ? $this->vars['clock_date'] : 'j M Y',
);
$this->num_format = ($this->vars['number_format'] == 'space') ? ' ' : $this->vars['number_format'];
$this->get_magic_quotes = get_magic_quotes_gpc();
//-----------------------------------------
// Sort out the accessing IP
// (Thanks to Cosmos and schickb)
//-----------------------------------------
$addrs = array();
if ( $this->vars['xforward_matching'] )
{
foreach( array_reverse( explode( ',', $this->my_getenv('HTTP_X_FORWARDED_FOR') ) ) as $x_f )
{
$x_f = trim($x_f);
if ( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/', $x_f ) )
{
$addrs[] = $x_f;
}
}
$addrs[] = $this->my_getenv('HTTP_CLIENT_IP');
$addrs[] = $this->my_getenv('HTTP_PROXY_USER');
}
$addrs[] = $this->my_getenv('REMOTE_ADDR');
//-----------------------------------------
// Do we have one yet?
//-----------------------------------------
foreach ( $addrs as $ip )
{
if ( $ip )
{
preg_match( "/^([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/", $ip, $match );
$this->ip_address = $match[1].'.'.$match[2].'.'.$match[3].'.'.$match[4];
if ( $this->ip_address AND $this->ip_address != '...' )
{
break;
}
}
}
//-----------------------------------------
// Make sure we take a valid IP address
//-----------------------------------------
if ( ! $this->ip_address OR $this->ip_address == '...' )
{
print "Could not determine your IP address";
exit();
}
#Backwards compat:
$this->input["IP_ADDRESS"] = $this->ip_address;
//-----------------------------------------
// Make a safe query string
//-----------------------------------------
$this->query_string_safe = str_replace( '&amp;', '&', $this->parse_clean_value( urldecode($this->my_getenv('QUERY_STRING')) ) );
$this->query_string_real = str_replace( '&' , '&', $this->query_string_safe );
//-----------------------------------------
// Upload dir?
//-----------------------------------------
$this->vars['upload_dir'] = $this->vars['upload_dir'] ? $this->vars['upload_dir'] : INS_ROOT_PATH.'uploads';
//-----------------------------------------
// Char set
//-----------------------------------------
$this->vars['gb_char_set'] = $this->vars['gb_char_set'] ? $this->vars['gb_char_set'] : 'iso-8859-1';
//-----------------------------------------
// PHP API
//-----------------------------------------
define('IPB_PHP_SAPI', php_sapi_name() );
//-----------------------------------------
// IPS CLASS INITIATED
//-----------------------------------------
if ( ! defined( 'IPSCLASS_INITIATED' ) )
{
define( 'IPSCLASS_INITIATED', 1 );
}
//-----------------------------------------
// Get user-agent, browser and OS
//-----------------------------------------
$this->user_agent = $this->parse_clean_value($this->my_getenv('HTTP_USER_AGENT'));
$this->browser = $this->fetch_browser();
$this->operating_system = $this->fetch_os();
//-----------------------------------------
// Can we use fancy JS? IE6, Safari, Moz
// and opera 7.6
//-----------------------------------------
if ( $this->browser['browser'] == 'ie' AND $this->browser['version'] >= 6.0 )
{
$this->can_use_fancy_js = 1;
}
else if ( $this->browser['browser'] == 'gecko' AND $this->browser['version'] >= 20030312 )
{
$this->can_use_fancy_js = 1;
}
else if ( $this->browser['browser'] == 'mozilla' AND $this->browser['version'] >= 1.3 )
{
$this->can_use_fancy_js = 1;
}
else if ( $this->browser['browser'] == 'opera' AND $this->browser['version'] >= 7.6 )
{
$this->can_use_fancy_js = 1;
}
else if ( $this->browser['browser'] == 'safari' AND $this->browser['version'] >= 120)
{
$this->can_use_fancy_js = 1;
}
//$this->can_use_fancy_js = 0;
}
/*-------------------------------------------------------------------------*/
// INIT: Load cache
/*-------------------------------------------------------------------------*/
/**
* Loads and parses the required cache elements from the DB
*
* @todo Add in methods to save and write to disk file
* @param array Array of caches to load
* @return void
*/
function init_load_cache( $cachearray=array('settings', 'group_cache', 'systemvars', 'skin_id_cache', 'forum_cache', 'rss_export') )
{
//--------------------------------
// Generate cache list
//--------------------------------
$cachelist = "'".implode( "','", $cachearray )."'";
//--------------------------------
// Get...
//--------------------------------
$this->DB->simple_construct( array( 'select' => '*', 'from' => 'cache_store', 'where' => "cs_key IN ( $cachelist )" ) );
$this->DB->simple_exec();
while ( $r = $this->DB->fetch_row() )
{
if ( $r['cs_key'] == 'settings' )
{
$tmp = unserialize( $r['cs_value'] );
if ( is_array( $tmp ) and count( $tmp ) )
{
foreach( $tmp as $k => $v )
{
$this->vars[ $k ] = $v;
}
}
unset( $tmp );
}
else
{
if ( $r['cs_array'] )
{
$this->cache[ $r['cs_key'] ] = unserialize( stripslashes($r['cs_value']) );
}
else
{
$this->cache[ $r['cs_key'] ] = $r['cs_value'];
}
}
}
if ( ! isset( $this->cache['systemvars'] ) )
{
$this->DB->simple_exec_query( array( 'delete' => 'cache_store', 'where' => "cs_key='systemvars'" ) );
$this->DB->do_insert( 'cache_store', array( 'cs_key' => 'systemvars', 'cs_value' => addslashes(serialize(array())), 'cs_array' => 1 ) );
}
//--------------------------------
// Set up cache path
//--------------------------------
if ( $this->vars['ipb_cache_path'] )
{
define( 'CACHE_PATH', $this->vars['ipb_cache_path'] );
}
else
{
define( 'CACHE_PATH', INS_ROOT_PATH . "../" );
}
//-----------------------------------------
// IPS CACHE LOADED
//-----------------------------------------
if ( ! defined( 'IPSCLASS_CACHE_LOADED' ) )
{
define( 'IPSCLASS_CACHE_LOADED', 1 );
}
//--------------------------------
// Set up defaults
//--------------------------------
$this->vars['topic_title_max_len'] = $this->vars['topic_title_max_len'] ? $this->vars['topic_title_max_len'] : 50;
}
/*-------------------------------------------------------------------------*/
// INIT: DB Connection
/*-------------------------------------------------------------------------*/
/**
* Initializes the database connection and populates $ipsclass->DB
*
* @return void
*/
function init_db_connection( $db, $user, $pass, $host, $pre, $driver='mysql' )
{
//-----------------------------------------
// INIT
//-----------------------------------------
$file = '';
//-----------------------------------------
// Cache file?
//-----------------------------------------
if ( defined( 'INS_SQL_FILE' ) )
{
$file = str_replace( '<%driver%>', $driver, INS_SQL_FILE );
}
$classname = "db_driver_".$driver;
$this->DB = new $classname;
$this->DB->obj['sql_database'] = $db;
$this->DB->obj['sql_user'] = $user;
$this->DB->obj['sql_pass'] = $pass;
$this->DB->obj['sql_host'] = $host;
$this->DB->obj['sql_tbl_prefix'] = $pre;
$this->DB->obj['use_shutdown'] = 0;
if ( $file )
{
$this->DB->obj['query_cache_file'] = $file;
}
if ( ! defined( 'SQL_PREFIX' ) )
{
define( 'SQL_PREFIX', $pre );
}
//-----------------------------------
// Required vars?
//-----------------------------------
if ( is_array( $this->DB->connect_vars ) and count( $this->DB->connect_vars ) )
{
foreach( $this->DB->connect_vars as $k => $v )
{
$this->DB->connect_vars[ $k ] = $this->vars[ $k ];
}
}
//--------------------------------
// Get a DB connection
//--------------------------------
$this->DB->connect();
//-----------------------------------------
// IPS DB LOADED
//-----------------------------------------
if ( ! defined( 'IPSCLASS_DB_LOADED' ) )
{
define( 'IPSCLASS_DB_LOADED', 1 );
}
}
/*-------------------------------------------------------------------------*/
// Get browser
// Return: unknown, windows, mac
/*-------------------------------------------------------------------------*/
/**
* Fetches the user's operating system
*
* @return string
*/
function fetch_os()
{
$useragent = strtolower($this->my_getenv('HTTP_USER_AGENT'));
if ( strstr( $useragent, 'mac' ) )
{
return 'mac';
}
if ( preg_match( '#wi(n|n32|ndows)#', $useragent ) )
{
return 'windows';
}
return 'unknown';
}
/*-------------------------------------------------------------------------*/
// Get browser
// Return: unknown, opera, IE, mozilla, konqueror, safari
/*-------------------------------------------------------------------------*/
/**
* Fetches the user's browser from their user-agent
*
* @return array [ browser, version ]
*/
function fetch_browser()
{
$version = 0;
$browser = "unknown";
$useragent = strtolower($this->my_getenv('HTTP_USER_AGENT'));
//-----------------------------------------
// Opera...
//-----------------------------------------
if ( strstr( $useragent, 'opera' ) )
{
preg_match( "#opera[ /]([0-9\.]{1,10})#", $useragent, $ver );
return array( 'browser' => 'opera', 'version' => $ver[1] );
}
//-----------------------------------------
// IE...
//-----------------------------------------
if ( strstr( $useragent, 'msie' ) )
{
preg_match( "#msie[ /]([0-9\.]{1,10})#", $useragent, $ver );
return array( 'browser' => 'ie', 'version' => $ver[1] );
}
//-----------------------------------------
// Safari...
//-----------------------------------------
if ( strstr( $useragent, 'safari' ) )
{
preg_match( "#safari/([0-9.]{1,10})#", $useragent, $ver );
return array( 'browser' => 'safari', 'version' => $ver[1] );
}
//-----------------------------------------
// Mozilla browsers...
//-----------------------------------------
if ( strstr( $useragent, 'gecko' ) )
{
preg_match( "#gecko/(\d+)#", $useragent, $ver );
return array( 'browser' => 'gecko', 'version' => $ver[1] );
}
//-----------------------------------------
// Older Mozilla browsers...
//-----------------------------------------
if ( strstr( $useragent, 'mozilla' ) )
{
preg_match( "#^mozilla/[5-9]\.[0-9.]{1,10}.+rv:([0-9a-z.+]{1,10})#", $useragent, $ver );
return array( 'browser' => 'mozilla', 'version' => $ver[1] );
}
//-----------------------------------------
// Konqueror...
//-----------------------------------------
if ( strstr( $useragent, 'konqueror' ) )
{
preg_match( "#konqueror/([0-9.]{1,10})#", $useragent, $ver );
return array( 'browser' => 'konqueror', 'version' => $ver[1] );
}
//-----------------------------------------
// Still here?
//-----------------------------------------
return array( 'browser' => $browser, 'version' => $version );
}
/*-------------------------------------------------------------------------*/
//
// LOAD CLASS: Wrapper to load ..er.. classes
//
/*-------------------------------------------------------------------------*/
/**
* Wrapper function to load a class and pass $this automagically
*
* @param string File name
* @param string Class Name
* @param string Constructor variables
* @return object
*/
function load_class( $file_name, $class_name, $pass_var="" )
{
if ( ! $class_name )
{
$class_name = $file_name;
}
require_once( $file_name );
if ( $pass_var )
{
$class = new $class_name ( $pass_var );
}
else
{
$class = new $class_name;
}
$class->ipsclass =& $this;
return $class;
}
/*-------------------------------------------------------------------------*/
// UNPACK MEMBER CACHE
/*-------------------------------------------------------------------------*/
/**
* Unpacks a member's cache
*
* Left as a function for any other processing
*
* @param string Serialized cache array
* @return array Unpacked array
*/
function unpack_member_cache( $cache_serialized_array="" )
{
return unserialize( $cache_serialized_array );
}
/*-------------------------------------------------------------------------*/
// PACK MEMBER CACHE
/*-------------------------------------------------------------------------*/
/**
* Packs up member's cache
*
* Takes an existing array and updates member's DB row
* This will overwrite any existing entries by the same
* key and create new entries for non-existing rows
*
* @param integer Member ID
* @param array New array
* @param array Current Array (optional)
* @return boolean
*/
function pack_and_update_member_cache( $member_id, $new_cache_array, $current_cache_array='' )
{
//-----------------------------------------
// INIT
//-----------------------------------------
$member_id = intval( $member_id );
//-----------------------------------------
// Got a member ID?
//-----------------------------------------
if ( ! $member_id )
{
return FALSE;
}
//-----------------------------------------
// Got anything to update?
//-----------------------------------------
if ( ! is_array( $new_cache_array ) OR ! count( $new_cache_array ) )
{
return FALSE;
}
//-----------------------------------------
// Got a current cache?
//-----------------------------------------
if ( ! is_array( $current_cache_array ) )
{
$member = $this->DB->build_and_exec_query( array( 'select' => "members_cache", 'from' => 'members', 'where' => 'id='.$member_id ) );
$member['members_cache'] = $member['members_cache'] ? $member['members_cache'] : array();
$current_cache_array = unserialize( $member['members_cache'] );
}
//-----------------------------------------
// Overwrite...
//-----------------------------------------
foreach( $new_cache_array as $k => $v )
{
$current_cache_array[ $k ] = $v;
}
//-----------------------------------------
// Update...
//-----------------------------------------
$this->DB->do_update( 'members', array( 'members_cache' => serialize( $current_cache_array ) ), 'id='.$member_id );
//-----------------------------------------
// Set member array right...
//-----------------------------------------
$this->member['_cache'] = $current_cache_array;
}
/*-------------------------------------------------------------------------*/
// UPDATE FORUM CACHE
/*-------------------------------------------------------------------------*/
/**
* Updates forum cache (loads all, recaches all)
*
* @return void
*/
function update_forum_cache()
{
$ignore_me = array( 'redirect_url', 'redirect_loc', 'rules_text', 'permission_custom_error', 'notify_modq_emails' );
if ( $this->vars['forum_cache_minimum'] )
{
$ignore_me[] = 'description';
$ignore_me[] = 'rules_title';
}
$this->cache['forum_cache'] = array();
$this->DB->simple_construct( array( 'select' => '*',
'from' => 'forums',
'order' => 'parent_id, position'
) );
$this->DB->simple_exec();
while( $f = $this->DB->fetch_row() )
{
$fr = array();
$perms = unserialize(stripslashes($f['permission_array']));
//-----------------------------------------
// Stuff we don't need...
//-----------------------------------------
foreach( $f as $k => $v )
{
if ( in_array( $k, $ignore_me ) )
{
continue;
}
else
{
if ( $v != "" )
{
$fr[ $k ] = $v;
}
}
}
$fr['read_perms'] = $perms['read_perms'];
$fr['reply_perms'] = $perms['reply_perms'];
$fr['start_perms'] = $perms['start_perms'];
$fr['upload_perms'] = $perms['upload_perms'];
$fr['show_perms'] = $perms['show_perms'];
unset($fr['permission_array']);
$this->cache['forum_cache'][ $fr['id'] ] = $fr;
}
$this->update_cache( array( 'name' => 'forum_cache', 'array' => 1, 'deletefirst' => 1, 'donow' => 1 ) );
}
/*-------------------------------------------------------------------------*/
//
// UPDATE CACHE
//
/*-------------------------------------------------------------------------*/
/**
* Updates cache
*
* @param array Cache values (name, value, deletefirst, donow)
* @todo remove some of the MySQL specific code
* @return void
*/
function update_cache( $v=array() )
{
//-----------------------------------------
// Don't cache forums?
//-----------------------------------------
if ( $v['name'] == 'forum_cache' AND $this->vars['no_cache_forums'] )
{
return;
}
//-----------------------------------------
// Next...
//-----------------------------------------
if ( $v['name'] )
{
if ( ! $v['value'] )
{
$value = $this->DB->add_slashes(serialize($this->cache[ $v['name'] ]));
}
$this->DB->manual_addslashes = 1;
$this->DB->no_escape_fields['cs_key'] = 1;
if ( $v['deletefirst'] == 1 )
{
if ( $v['donow'] )
{
if ( $this->vars['sql_driver'] == 'mysql' )
{
$this->DB->query( "REPLACE INTO ".SQL_PREFIX."cache_store SET cs_key='{$v['name']}', cs_value='$value', cs_array=".intval($v['array']) );
}
else
{
$this->DB->simple_construct( array( 'delete' => 'cache_store', 'where' => "cs_key='{$v['name']}'" ) );
$this->DB->simple_exec();
$this->DB->do_insert( 'cache_store', array( 'cs_array' => intval($v['array']), 'cs_key' => $v['name'], 'cs_value' => $value ) );
}
}
else
{
if ( $this->vars['sql_driver'] == 'mysql' )
{
$this->DB->query( "REPLACE INTO ".SQL_PREFIX."cache_store SET cs_key='{$v['name']}', cs_value='$value', cs_array=".intval($v['array']) );
}
else
{
$this->DB->simple_construct( array( 'delete' => 'cache_store', 'where' => "cs_key='{$v['name']}'" ) );
$this->DB->simple_shutdown_exec();
$this->DB->do_shutdown_insert( 'cache_store', array( 'cs_array' => intval($v['array']), 'cs_key' => $v['name'], 'cs_value' => $value ) );
}
}
}
else
{
if ( $v['donow'] )
{
$this->DB->do_update( 'cache_store', array( 'cs_array' => intval($v['array']), 'cs_value' => $value ), "cs_key='{$v['name']}'" );
}
else
{
$this->DB->do_shutdown_update( 'cache_store', array( 'cs_array' => intval($v['array']), 'cs_value' => $value ), "cs_key='{$v['name']}'" );
}
}
$this->DB->manual_addslashes = 0;
}
}
/*-------------------------------------------------------------------------*/
//
// MY DECONSTRUCTOR
//
/*-------------------------------------------------------------------------*/
/**
* Manual deconstructor
*
* Runs any SQL shutdown queries and mail tasks
*
* @return void
*/
function my_deconstructor()
{
//-----------------------------------------
// Any shutdown queries
//-----------------------------------------
$this->DB->return_die = 0;
if ( count( $this->DB->obj['shutdown_queries'] ) )
{
foreach( $this->DB->obj['shutdown_queries'] as $q )
{
$this->DB->query( $q );
}
}
$this->DB->return_die = 1;
$this->DB->obj['shutdown_queries'] = array();
//-----------------------------------------
// Process mail queue
//-----------------------------------------
$this->process_mail_queue();
$this->DB->close_db();
}
/*-------------------------------------------------------------------------*/
// txt_alphanumerical_clean
// ------------------
// Remove non alphas
/*-------------------------------------------------------------------------*/
/**
* Clean a string to remove all non alphanumeric characters
*
* @param string Input String
* @return string Parsed string
* @since 2.1
*/
function txt_alphanumerical_clean( $t )
{
return preg_replace( "/[^a-zA-Z0-9\-\_]/", "" , $t );
}
/*-------------------------------------------------------------------------*/
// txt_mb_strlen
// ------------------
// Multi byte char string length
/*-------------------------------------------------------------------------*/
/**
* Get the true length of a multi-byte character string
*
* @param string Input String
* @return intger String length
* @since 2.1
*/
function txt_mb_strlen( $t )
{
return strlen( preg_replace("/&#([0-9]+);/", "-", $this->txt_stripslashes( $t ) ) );
}
/*-------------------------------------------------------------------------*/
// txt_stripslashes
// ------------------
// Make Big5 safe - only strip if not already...
/*-------------------------------------------------------------------------*/
/**
* Remove slashes if magic_quotes enabled
*
* @param string Input String
* @return string Parsed string
* @since 2.0
*/
function txt_stripslashes($t)
{
if ( $this->get_magic_quotes )
{
$t = stripslashes($t);
$t = preg_replace( "/\\\(?!&#|\?#)/", "\", $t );
}
return $t;
}
/*-------------------------------------------------------------------------*/
// Safe Slashes - ensures slashes are saved correctly
/*-------------------------------------------------------------------------*/
/**
* Attempt to make slashes safe for us in DB (not really needed now?)
*
* @param string Input String
* @return string Parsed string
* @since 2.0
*/
function txt_safeslashes($t="")
{
return str_replace( '\\', "\\\\", $this->txt_stripslashes($t));
}
/*-------------------------------------------------------------------------*/
// txt_htmlspecialchars
// ------------------
// Custom version of htmlspecialchars to take into account mb chars
/*-------------------------------------------------------------------------*/
/**
* htmlspecialchars including multi-byte characters
*
* @param string Input String
* @return string Parsed string
* @since 2.0
*/
function txt_htmlspecialchars($t="")
{
// Use forward look up to only convert & not {
$t = preg_replace("/&(?!#[0-9]+;)/s", '&', $t );
$t = str_replace( "<", "<" , $t );
$t = str_replace( ">", ">" , $t );
$t = str_replace( '"', """, $t );
$t = str_replace( "'", ''', $t );
return $t; // A nice cup of?
}
/*-------------------------------------------------------------------------*/
// txt_UNhtmlspecialchars
// ------------------
// Undoes what the above function does. Yes.
/*-------------------------------------------------------------------------*/
/**
* unhtmlspecialchars including multi-byte characters
*
* @param string Input String
* @return string Parsed string
* @since 2.0
*/
function txt_UNhtmlspecialchars($t="")
{
$t = str_replace( "&" , "&", $t );
$t = str_replace( "<" , "<", $t );
$t = str_replace( ">" , ">", $t );
$t = str_replace( """, '"', $t );
$t = str_replace( "'", "'", $t );
return $t;
}
/*-------------------------------------------------------------------------*/
// txt_wintounix
// ------------------
// Converts \r\n to \n
/*-------------------------------------------------------------------------*/
/**
* Convert windows newlines to unix newlines
*
* @param string Input String
* @return string Parsed string
* @since 2.0
*/
function txt_windowstounix($t="")
{
// windows
$t = str_replace( "\r\n" , "\n", $t );
// Mac OS 9
$t = str_replace( "\r" , "\n", $t );
return $t;
}
/*-------------------------------------------------------------------------*/
//
// Convert newlines to <br /> nl2br is buggy with <br /> on early PHP builds
//
/*-------------------------------------------------------------------------*/
/**
* <br /> Safe nl2br (Buggy on old PHP builds)
*
* @param string Input text
* @return string Parsed text
* @since 2.0
*/
function my_nl2br($t="")
{
return str_replace( "\n", "<br />", $t );
}
/*-------------------------------------------------------------------------*/
//
// Convert <br /> to newlines
//
/*-------------------------------------------------------------------------*/
/**
* <br /> Safe br2nl
*
* @param string Input text
* @return string Parsed text
* @since 2.0
*/
function my_br2nl($t="")
{
$t = preg_replace( "#(?:\n|\r)?<br />(?:\n|\r)?#", "\n", $t );
$t = preg_replace( "#(?:\n|\r)?<br>(?:\n|\r)?#" , "\n", $t );
return $t;
}
/*-------------------------------------------------------------------------*/
//
// Redirect using HTTP commands, not a page meta tag.
//
/*-------------------------------------------------------------------------*/
/**
* HTTP redirect with out message screen
*
* @param string URL to load
* @return void
* @since 2.0
*/
function boink_it($url)
{
// Ensure &s are taken care of
$url = str_replace( "&", "&", $url );
if ($this->vars['header_redirect'] == 'refresh')
{
@header("Refresh: 0;url=".$url);
}
else if ($this->vars['header_redirect'] == 'html')
{
echo("<html><head><meta http-equiv='refresh' content='0; url=$url'></head><body></body></html>");
exit();
}
else
{
@header("Location: ".$url);
}
exit();
}
/*-------------------------------------------------------------------------*/
//
// Create a random 8 character password
//
/*-------------------------------------------------------------------------*/
/**
* Create a random 8 character password
*
* @todo check if we still need this?
* @return string Password
* @since 2.0
*/
function make_password()
{
$pass = "";
$chars = array(
"1","2","3","4","5","6","7","8","9","0",
"a","A","b","B","c","C","d","D","e","E","f","F","g","G","h","H","i","I","j","J",
"k","K","l","L","m","M","n","N","o","O","p","P","q","Q","r","R","s","S","t","T",
"u","U","v","V","w","W","x","X","y","Y","z","Z");
$count = count($chars) - 1;
srand((double)microtime()*1000000);
for($i = 0; $i < 8; $i++)
{
$pass .= $chars[rand(0, $count)];
}
return($pass);
}
/*-------------------------------------------------------------------------*/
// text_tidy:
// Takes raw text from the DB and makes it all nice and pretty - which also
// parses un-HTML'd characters. Use this with caution!
/*-------------------------------------------------------------------------*/
/**
* Takes raw text from the DB and makes it all nice and pretty - which also
* parses un-HTML'd characters. Use this with caution!
*
* @param string Raw text
* @return string Parsed text
* @since 2.0
* @todo Check if we still need this
* @deprecated Since IPB 2.1
*/
function text_tidy($txt = "") {
$trans = get_html_translation_table(HTML_ENTITIES);
$trans = array_flip($trans);
$txt = strtr( $txt, $trans );
$txt = preg_replace( "/\s{2}/" , " " , $txt );
$txt = preg_replace( "/\r/" , "\n" , $txt );
$txt = preg_replace( "/\t/" , " " , $txt );
//$txt = preg_replace( "/\\n/" , "\n" , $txt );
return $txt;
}
/*-------------------------------------------------------------------------*/
// Return a date or '--' if the date is undef.
/*-------------------------------------------------------------------------*/
/**
* Generate Human formatted date string
* Return a date or '--' if the date is undef.
* We use the rather nice gmdate function in PHP to synchronise our times
* with GMT. This gives us the following choices:
* If the user has specified a time offset, we use that. If they haven't set
* a time zone, we use the default board time offset (which should automagically
* be adjusted to match gmdate.
*
* @param integer Unix date
* @param method LONG, SHORT, JOINED, TINY
* @param integer
* @param integer
* @return string Parsed time
* @since 2.0
*/
function get_date($date, $method, $norelative=0, $full_relative=0)
{
if ( ! $date )
{
return '--';
}
if ( empty($method) )
{
$method = 'LONG';
}
if ($this->offset_set == 0)
{
// Save redoing this code for each call, only do once per page load
$this->offset = $this->get_time_offset();
if ( $this->vars['time_use_relative'] )
{
$this->today_time = gmdate('d,m,Y', ( time() + $this->offset) );
$this->yesterday_time = gmdate('d,m,Y', ( (time() - 86400) + $this->offset) );
}
$this->offset_set = 1;
}
//-----------------------------------------
// Full relative?
//-----------------------------------------
if ( $this->vars['time_use_relative'] == 3 )
{
$full_relative = 1;
}
//-----------------------------------------
// FULL Relative
//-----------------------------------------
if ( $full_relative and ( $norelative != 1 ) )
{
$diff = time() - $date;
if ( $diff < 3600 )
{
if ( $diff < 120 )
{
return $this->lang['time_less_minute'];
}
else
{
return sprintf( $this->lang['time_minutes_ago'], intval($diff / 60) );
}
}
else if ( $diff < 7200 )
{
return $this->lang['time_less_hour'];
}
else if ( $diff < 86400 )
{
return sprintf( $this->lang['time_hours_ago'], intval($diff / 3600) );
}
else if ( $diff < 172800 )
{
return $this->lang['time_less_day'];
}
else if ( $diff < 604800 )
{
return sprintf( $this->lang['time_days_ago'], intval($diff / 86400) );
}
else if ( $diff < 1209600 )
{
return $this->lang['time_less_week'];
}
else if ( $diff < 3024000 )
{
return sprintf( $this->lang['time_weeks_ago'], intval($diff / 604900) );
}
else
{
return gmdate($this->time_options[$method], ($date + $this->offset) );
}
}
//-----------------------------------------
// Yesterday / Today
//-----------------------------------------
else if ( $this->vars['time_use_relative'] and ( $norelative != 1 ) )
{
$this_time = gmdate('d,m,Y', ($date + $this->offset) );
//-----------------------------------------
// Use level 2 relative?
//-----------------------------------------
if ( $this->vars['time_use_relative'] == 2 )
{
$diff = time() - $date;
if ( $diff < 3600 )
{
if ( $diff < 120 )
{
return $this->lang['time_less_minute'];
}
else
{
return sprintf( $this->lang['time_minutes_ago'], intval($diff / 60) );
}
}
}
//-----------------------------------------
// Still here?
//-----------------------------------------
if ( $this_time == $this->today_time )
{
return str_replace( '{--}', $this->lang['time_today'], gmdate($this->vars['time_use_relative_format'], ($date + $this->offset) ) );
}
else if ( $this_time == $this->yesterday_time )
{
return str_replace( '{--}', $this->lang['time_yesterday'], gmdate($this->vars['time_use_relative_format'], ($date + $this->offset) ) );
}
else
{
return gmdate($this->time_options[$method], ($date + $this->offset) );
}
}
//-----------------------------------------
// Normal
//-----------------------------------------
else
{
return gmdate($this->time_options[$method], ($date + $this->offset) );
}
}
/*-------------------------------------------------------------------------*/
// Returns the time - tick tock, etc
/*-------------------------------------------------------------------------*/
/**
* Return current TIME (not date)
*
* @param integer Unix date
* @param string PHP date() method
* @return string
* @since 2.0
*/
function get_time($date, $method='h:i A')
{
if ($this->offset_set == 0)
{
// Save redoing this code for each call, only do once per page load
$this->offset = $this->get_time_offset();
$this->offset_set = 1;
}
return gmdate($method, ($date + $this->offset) );
}
/*-------------------------------------------------------------------------*/
// Returns the offset needed and stuff - quite groovy.
/*-------------------------------------------------------------------------*/
/**
* Calculates the user's time offset
*
* @return integer
* @since 2.0
*/
function get_time_offset()
{
$r = 0;
$r = ( ($this->member['time_offset'] != "") ? $this->member['time_offset'] : $this->vars['time_offset'] ) * 3600;
if ( $this->vars['time_adjust'] )
{
$r += ($this->vars['time_adjust'] * 60);
}
if ( $this->member['dst_in_use'] )
{
$r += 3600;
}
return $r;
}
/*-------------------------------------------------------------------------*/
// Converts user's date to GMT unix date
/*-------------------------------------------------------------------------*/
/**
* Converts user's date to GMT unix date
*
* @param array array( 'year', 'month', 'day', 'hour', 'minute' )
* @return integer
* @since 2.0
*/
function convert_local_date_to_unix( $time=array() )
{
//-----------------------------------------
// Get the local offset
//-----------------------------------------
$offset = $this->get_time_offset();
$time = gmmktime( intval($time['hour']), intval($time['minute']), 0, intval($time['month']), intval($time['day']), intval($time['year']) );
return $time - $offset;
}
/*-------------------------------------------------------------------------*/
// Convert unix timestamp into: (no leading zeros)
/*-------------------------------------------------------------------------*/
/**
* Convert unix timestamp into: (no leading zeros)
*
* Written into separate function to allow for timezone to be used easily
*
* @param integer Unix date
* @return array array( 'day' => x, 'month' => x, 'year' => x, 'hour' => x, 'minute' => x );
* @since 2.0
*/
function unixstamp_to_human( $unix=0 )
{
$offset = $this->get_time_offset();
$tmp = gmdate( 'j,n,Y,G,i', $unix + $offset );
list( $day, $month, $year, $hour, $min ) = explode( ',', $tmp );
return array( 'day' => $day,
'month' => $month,
'year' => $year,
'hour' => $hour,
'minute' => $min );
}
/*-------------------------------------------------------------------------*/
// My gmmktime() - PHP func seems buggy
/*-------------------------------------------------------------------------*/
/**
* My gmmktime() - PHP func seems buggy
*
*
* @param integer
* @param integer
* @param integer
* @param integer
* @param integer
* @param integer
* @return integer
* @since 2.0
*/
function date_gmmktime( $hour=0, $min=0, $sec=0, $month=0, $day=0, $year=0 )
{
// Calculate UTC time offset
$offset = date( 'Z' );
// Generate server based timestamp
$time = mktime( $hour, $min, $sec, $month, $day, $year );
// Calculate DST on / off
$dst = intval( date( 'I', $time ) - date( 'I' ) );
return $offset + ($dst * 3600) + $time;
}
/*-------------------------------------------------------------------------*/
// getdate doesn't work apparently as it doesn't take into account
// the offset, even when fed a GMT timestamp.
/*-------------------------------------------------------------------------*/
/**
* Hand rolled GETDATE method
*
* getdate doesn't work apparently as it doesn't take into account
* the offset, even when fed a GMT timestamp.
*
* @param integer Unix date
* @return array 0, seconds, minutes, hours, mday, wday, mon, year, yday, weekday, month
* @since 2.0
*/
function date_getgmdate( $gmt_stamp )
{
$tmp = gmdate( 'j,n,Y,G,i,s,w,z,l,F', $gmt_stamp );
list( $day, $month, $year, $hour, $min, $seconds, $wday, $yday, $weekday, $fmon ) = explode( ',', $tmp );
return array( 0 => $gmt_stamp,
"seconds" => $seconds, // Numeric representation of seconds 0 to 59
"minutes" => $min, // Numeric representation of minutes 0 to 59
"hours" => $hour, // Numeric representation of hours 0 to 23
"mday" => $day, // Numeric representation of the day of the month 1 to 31
"wday" => $wday, // Numeric representation of the day of the week 0 (for Sunday) through 6 (for Saturday)
"mon" => $month, // Numeric representation of a month 1 through 12
"year" => $year, // A full numeric representation of a year, 4 digits Examples: 1999 or 2003
"yday" => $yday, // Numeric representation of the day of the year 0 through 365
"weekday" => $weekday, // A full textual representation of the day of the week Sunday through Saturday
"month" => $fmon, // A full textual representation of a month, such as January or Mar
);
}
/*-------------------------------------------------------------------------*/
// Get Environment Variable
/*-------------------------------------------------------------------------*/
/**
* Get an environment variable value
*
* Abstract layer allows us to user $_SERVER or getenv()
*
* @param string Env. Variable key
* @return string
* @since 2.2
*/
function my_getenv($key)
{
$return = array();
if( is_array( $_SERVER ) AND count( $_SERVER ) )
{
if( isset( $_SERVER[$key] ) )
{
$return = $_SERVER[$key];
}
}
if( !$return )
{
$return = getenv($key);
}
return $return;
}
/*-------------------------------------------------------------------------*/
// Sets a cookie, abstract layer allows us to do some checking, etc
/*-------------------------------------------------------------------------*/
/**
* Set a cookie
*
* Abstract layer allows us to do some checking, etc
*
* @param string Cookie name
* @param string Cookie value
* @param integer Is sticky flag
* @return void
* @since 2.0
*/
function my_setcookie($name, $value = "", $sticky = 1)
{
if ( $this->no_print_header )
{
return;
}
if ($sticky == 1)
{
$expires = time() + 60*60*24*365;
}
$this->vars['cookie_domain'] = $this->vars['cookie_domain'] == "" ? "" : $this->vars['cookie_domain'];
$this->vars['cookie_path'] = $this->vars['cookie_path'] == "" ? "/" : $this->vars['cookie_path'];
$name = $this->vars['cookie_id'].$name;
@setcookie($name, $value, $expires, $this->vars['cookie_path'], $this->vars['cookie_domain']);
}
/*-------------------------------------------------------------------------*/
// Cookies, cookies everywhere and not a byte to eat. forum_read
/*-------------------------------------------------------------------------*/
/**
* Get a cookie
*
* Abstract layer allows us to do some checking, etc
*
* @param string Cookie name
* @return mixed
* @since 2.0
*/
function my_getcookie($name)
{
if ( isset($_COOKIE[$this->vars['cookie_id'].$name]) )
{
if ( ! in_array( $name, array('topicsread', 'forum_read') ) )
{
return $this->parse_clean_value(urldecode($_COOKIE[$this->vars['cookie_id'].$name]));
}
else
{
return urldecode($_COOKIE[$this->vars['cookie_id'].$name]);
}
}
else
{
return FALSE;
}
}
/*-------------------------------------------------------------------------*/
// Makes incoming info "safe"
/*-------------------------------------------------------------------------*/
/**
* Parse _GET _POST data
*
* Clean up and unHTML
*
* @return void
* @since Time began
*/
function parse_incoming()
{
# THIS NEEDS TO BE HERE!
$this->get_magic_quotes = @get_magic_quotes_gpc();
if ( is_array($_GET) )
{
while( list($k, $v) = each($_GET) )
{
if ( is_array($_GET[$k]) )
{
while( list($k2, $v2) = each($_GET[$k]) )
{
$this->input[ $this->parse_clean_key($k) ][ $this->parse_clean_key($k2) ] = $this->parse_clean_value($v2);
}
}
else
{
$this->input[ $this->parse_clean_key($k) ] = $this->parse_clean_value($v);
}
}
}
//----------------------------------------
// Overwrite GET data with post data
//----------------------------------------
if ( is_array($_POST) )
{
while( list($k, $v) = each($_POST) )
{
if ( is_array($_POST[$k]) )
{
while( list($k2, $v2) = each($_POST[$k]) )
{
$this->input[ $this->parse_clean_key($k) ][ $this->parse_clean_key($k2) ] = $this->parse_clean_value($v2);
}
}
else
{
$this->input[ $this->parse_clean_key($k) ] = $this->parse_clean_value($v);
}
}
}
$this->input['request_method'] = strtolower($this->my_getenv('REQUEST_METHOD'));
}
/*-------------------------------------------------------------------------*/
// Key Cleaner - ensures no funny business with form elements
/*-------------------------------------------------------------------------*/
/**
* Clean _GET _POST key
*
* @param string Key name
* @return string Cleaned key name
* @since 2.1
*/
function parse_clean_key($key)
{
if ($key == "")
{
return "";
}
$key = htmlspecialchars(urldecode($key));
$key = preg_replace( "/\.\./" , "" , $key );
$key = preg_replace( "/\_\_(.+?)\_\_/" , "" , $key );
$key = preg_replace( "/^([\w\.\-\_]+)$/", "$1", $key );
return $key;
}
/*-------------------------------------------------------------------------*/
// Clean evil tags
/*-------------------------------------------------------------------------*/
/**
* Clean possible javascipt codes
*
* @param string Input
* @return string Cleaned Input
* @since 2.0
*/
function clean_evil_tags( $t )
{
$t = preg_replace( "/javascript/i" , "javascript", $t );
$t = preg_replace( "/alert/i" , "alert" , $t );
$t = preg_replace( "/about:/i" , "about:" , $t );
$t = preg_replace( "/onmouseover/i", "onmouseover" , $t );
$t = preg_replace( "/onclick/i" , "onclick" , $t );
$t = preg_replace( "/onload/i" , "onload" , $t );
$t = preg_replace( "/onsubmit/i" , "onsubmit" , $t );
$t = preg_replace( "/<body/i" , "<body" , $t );
$t = preg_replace( "/<html/i" , "<html" , $t );
$t = preg_replace( "/document\./i" , "document." , $t );
return $t;
}
/*-------------------------------------------------------------------------*/
// Clean value
/*-------------------------------------------------------------------------*/
/**
* UnHTML and stripslashes _GET _POST value
*
* @param string Input
* @return string Cleaned Input
* @since 2.1
*/
function parse_clean_value($val)
{
if ($val == "")
{
return "";
}
$val = str_replace( " ", " ", $val );
if ( $this->vars['strip_space_chr'] )
{
$val = str_replace( chr(0xCA), "", $val ); //Remove sneaky spaces
}
$val = str_replace( "&" , "&" , $val );
$val = str_replace( "<!--" , "<!--" , $val );
$val = str_replace( "-->" , "-->" , $val );
$val = preg_replace( "/<script/i" , "<script" , $val );
$val = str_replace( ">" , ">" , $val );
$val = str_replace( "<" , "<" , $val );
$val = str_replace( "\"" , """ , $val );
$val = preg_replace( "/\n/" , "<br />" , $val ); // Convert literal newlines
$val = preg_replace( "/\\\$/" , "$" , $val );
$val = preg_replace( "/\r/" , "" , $val ); // Remove literal carriage returns
$val = str_replace( "!" , "!" , $val );
$val = str_replace( "'" , "'" , $val ); // IMPORTANT: It helps to increase sql query safety.
// Ensure unicode chars are OK
if ( $this->allow_unicode )
{
$val = preg_replace("/&#([0-9]+);/s", "&#\\1;", $val );
}
// Strip slashes if not already done so.
if ( $this->get_magic_quotes )
{
$val = stripslashes($val);
}
// Swap user entered backslashes
$val = preg_replace( "/\\\(?!&#|\?#)/", "\", $val );
return $val;
}
/**
* Remove board macros
*
* @param string Input
* @return string Cleaned Input
* @since 2.0
*/
function remove_tags($text="")
{
// Removes < BOARD TAGS > from posted forms
$text = preg_replace( "/(<|<)% (MEMBER BAR|BOARD FOOTER|BOARD HEADER|CSS|JAVASCRIPT|TITLE|BOARD|STATS|GENERATOR|COPYRIGHT|NAVIGATION) %(>|>)/i", "<% \\2 %>", $text );
//$text = str_replace( "<%", "<%", $text );
return $text;
}
/**
* Useless stupid function that serves no purpose other than
* to create a nice gap between useful functions
*
* @param integer
* @return integer
* @since 2.0
* @deprecated
*/
function is_number($number="")
{
if ($number == "") return -1;
if ( preg_match( "/^([0-9]+)$/", $number ) )
{
return $number;
}
else
{
return "";
}
}
} // end class
?>