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<?php
// File session.inc.php / ibWebAdmin
// Purpose session and fallback related functions, define all session variables
// Author Lutz Brueckner <irie@gmx.de>
// Copyright (c) 2000, 2001, 2002, 2003, 2004 by Lutz Brueckner,
// published under the terms of the GNU General Public Licence v.2,
// see file LICENCE for details
// Created <00/12/16 12:48:45 lb>
//
// $Id: session.inc.php,v 1.57 2004/05/31 15:40:02 lbrueckner Exp $
//
// fallback to get-/post-session-mode if the client accept no cookies
// set $s_cookies = TRUE if the client accept cookies
//
function fallback_session() {
global $HTTP_POST_VARS, $HTTP_GET_VARS, $HTTP_COOKIE_VARS, $HTTP_SERVER_VARS;
global $HTTP_SESSION_VARS;
// check if we got a valid session-id, redirect if not
// and force ssl usage if configured
if ((!isset($HTTP_COOKIE_VARS[SESSION_NAME]) &&
!isset($HTTP_POST_VARS[SESSION_NAME]) &&
!isset($HTTP_GET_VARS[SESSION_NAME])
) ||
(PROTOCOL == 'https' && !isset($HTTP_SERVER_VARS['HTTPS']))
) {
// this is thought to work around a xitami webserver bug
$script = !empty($HTTP_SERVER_VARS['PHP_SELF']) ? $HTTP_SERVER_VARS['PHP_SELF'] : $HTTP_SERVER_VARS['SCRIPT_NAME'];
// take care for non-standard http ports
$port_str = isset($HTTP_SERVER_VARS['SERVER_PORT']) ? ':' . $HTTP_SERVER_VARS['SERVER_PORT'] : '';
// no valid id, fallback
redirect(PROTOCOL . '://' . $HTTP_SERVER_VARS['SERVER_NAME'] . $port_str . $script . '?' . SESSION_NAME . '=' . session_id());
exit;
}
$HTTP_SESSION_VARS['s_cookies'] = isset($HTTP_COOKIE_VARS[SESSION_NAME]) ? TRUE : FALSE;
$GLOBALS['s_cookies'] = $HTTP_SESSION_VARS['s_cookies'];
}
//
// add the session_id to url if necessary
//
function url_session($url) {
global $s_cookies, $HTTP_SERVER_VARS;
if (!$s_cookies &&
!ini_get('session.use_trans_sid') &&
strstr($url, SESSION_NAME.'='.session_id()) === FALSE) {
$url .= (strchr($url, '?') === FALSE) ? '?' : '&';
$url .= SESSION_NAME."=".session_id();
}
return str_replace('&', '&', $url);
}
//
// echo a hidden field to hold the session-id if necessary
//
function hidden_session_field() {
global $s_cookies;
if (!$s_cookies && !ini_get('session.use_trans_sid')) {
echo '<input type="hidden" name="'.session_name().'" value="'.session_id()."\">\n";
}
}
//
// register all sessionvars and assign default values
//
function initialize_session() {
global $HTTP_SESSION_VARS, $HTTP_COOKIE_VARS, $ptitle_strings, $adm_strings;
$useragent = guess_useragent();
$session_vars =
array('s_init' => TRUE, // indicates that the session is already initialized
's_cookies' => 'untested',
's_stylesheet_etag' => '',
's_connected' => FALSE, // TRUE if successfilly connected toa database
's_binpath' => FALSE, // becomes TRUE if isql was found in BINPATH
's_tab_menu' => check_gd_ttf_png(), // becomes TRUE if TabMenu.class is possible
's_useragent' => $useragent, // see comments at function guess_useragent()
's_use_jsrs' => FALSE,
's_cust' => get_customize_defaults($useragent), // user specific customization values
's_login' => array('database' => DEFAULT_PATH.DEFAULT_DB, // set by the db_login panel
'user' => DEFAULT_USER,
'host' => DEFAULT_HOST,
'password' => '',
'role' => DEFAULT_ROLE,
'cache' => DEFAULT_CACHE,
'charset' => DEFAULT_CHARSET,
'dialect' => DEFAULT_DIALECT,
'server' => DEFAULT_SERVER),
's_create_db' => '', // set by the db_create panel
's_create_user' => '',
's_create_pw' => '',
's_create_host' => '',
's_create_pagesize' => 1024,
's_create_charset' => 'NONE',
's_delete_db' => '', // set by the db_delete panel
's_delete_user' => '',
's_delete_pw' => '',
's_delete_host' => '',
's_systable' => array('table' => '', // show this table on the System Tables panel
'order' => '', // order the system table by this column
'dir' => 'ASC', // order direction for the system table, 'ASC' or 'DESC'
'ffield' => '', // filter field
'fvalue' => '', // filter value
'sysdata' => TRUE, // show system data in the system tables if TRUE
'refresh' => 15),
's_system_table' => '',
's_system_data' => TRUE,
's_systbl_order' => '',
's_systbl_dir' => 'ASC',
's_tables' => array(), // set by the tb_show panel
's_fields' => array(),
's_foreigns' => array(),
's_primaries' => array(),
's_uniques' => array(),
's_tables_valid' => FALSE, // indicates that $s_tables[]['name'] is setup properly
's_tables_counts' => 'no', // whether to display the record counts on th tb_show panel
's_charsets' => array(), // charset names and associated collations
's_create_table' => '', // set by the tb_create panel
's_create_num' => '',
's_coldefs' => array(),
's_modify_name' => '', // set by the tb_modify panel
's_modify_col' => '',
's_enter_name' => '', // set by the dt_enter-panel
's_enter_values' => array(),
's_domains' => array(), // $s_domains properties
's_domains_valid' => FALSE,
's_mod_domain' => '', // set by the acc_domain-panel
's_triggers' => array(), // triggers properties, set by the acc_triggers-panel
's_triggers_valid' => FALSE,
's_triggerdefs' => array(),
's_viewdefs' => array('name' => '',
'source' => '',
'check' => 'no'),
's_views_counts' => 'no', // whether to display the record counts on th tb_show panel
's_procedures' => array(), // stored procedures
's_proceduredefs' => array(),
's_procedures_valid' => FALSE,
's_udfs' => array(), // user defined functions
's_udfs_valid' => FALSE,
's_udfs_order' => 1,
's_udfs_dir' => 'ASC',
's_exceptions' => array(), // exceptions
's_exceptions_valid' => FALSE,
's_exceptions_order' => 1,
's_exceptions_dir' => 'ASC',
's_exception_defs' => array(),
's_indexes' => array(), // set by the acc_indexes-panel
's_mod_index' => '',
's_index_order' => 'name',
's_index_dir' => 'ASC',
// watchtable configuration
's_watch_table' => '', // the table to watch
's_watch_columns' => array(),
's_watch_blinks' => array(),
's_watch_blobas' => array(),
's_watch_rows' => DEFAULT_ROWS,
's_watch_start' => 1,
's_watch_direction' => 'Ascending',
's_watch_sort' => '',
's_watch_edit' => 'YES',
's_watch_del' => 'YES',
's_watch_tblob_inline' => 'YES',
's_watch_tblob_chars' => '50',
's_watch_condition' => '',
's_watch_fks' => array(), // foreign key definitions for the watchtable
's_watch_buffer' => '', // holds the html source of the watchtable output
// variables for the sql_output panel
's_sql' => array('queries' => array(), // select statements
'buffer' => '', // holds the html source of the sql output
'more' => FALSE), // TRUE if not all lines of the result are displayed
's_edit_idx' => 0, // counter for open edit panels, and idx for s_edit_where
's_edit_where' => array(), // sql where-clauses for the data in the edit panels
's_edit_values' => array(), // values edited in the dt_edit-panels
's_delete_idx' => 0, // counter for the open row delete confirmation panels
's_confirmations' => array(), // this gets an array-entry for every panel in confirmation-state,
// possible indices are 'table', 'column';
// the array-elements carrying the elements
// 'msg' which appears on the confirm-panel and
// 'sql' the sql-statement to evaluate when confirmed
's_sysdba_pw' => '', // set by the users-panel
's_user_name' => '',
's_sql_buffer' => array(), // place for the history of the enter-sql-panel
's_sql_pointer' => 0, // the actual buffer position
's_housekeeping' => 20000, // for the values and settings on the Database Maintenance panel
's_adm_dialect' => 0,
's_adm_buffers' => 75,
's_access_mode' => '',
's_write_mode' => '',
's_shut_secs' => 3,
's_adm_sweep_ignore' => '',
's_adm_validate_ignore' => '',
's_adm_validate' => '',
's_adm_validate_option' => '',
's_adm_transaction' => '',
's_adm_shut_noconns' => '',
's_adm_shut_notrans' => '',
's_adm_shut_force' => '',
's_adm_shut_reconnect' => 'reconnect',
's_adm_command' => array(),
's_backup' => array('target' => '', // for the values on the Database Backup panel
'servicemgr'=> '',
'bfactor' => 0,
'mdonly' => '',
'mdoldstyle'=> '',
'create' => '',
'transport' => '',
'convert' => '',
'nogc' => '',
'ignorecs' => '',
'ignorelt' => ''),
's_restore' => array('source' => '', // for the values on the Database Restore panel
'servicemgr'=> '',
'target' => '',
'overwrite'=> 'no',
'pagesize' => '8192',
'buffers' => '',
'amode' => $adm_strings['ReadWrite'],
'inactive' => '',
'oneattime'=> '',
'useall' => '',
'novalidity'=> '',
'kill' => '',
'connect' => 'no'),
's_csv' => array('import_null' => FALSE), // options for csv import/export
's_POST' => array(), // if DEBUG = TRUE the post and get variables are
's_GET' => array(), // stored here for the inc/display_variable.php script
// the $s_xyz_panels are arrays containing one array per panel
// on the page it describes
// $array[0] : panel name
// $array[1] : panel title
// $array[2] : panel status ['open'|'close']
// panels on the Database page
's_database_panels' => array(array('info', $ptitle_strings['info'], 'open'),
array('db_login', $ptitle_strings['db_login'], 'open'),
array('db_create', $ptitle_strings['db_create'], 'close'),
array('db_delete', $ptitle_strings['db_delete'], 'close'),
array('db_systable',$ptitle_strings['db_systable'],'close'),
array('db_meta', $ptitle_strings['db_meta'], 'close')),
// panels on the Tables page
's_tables_panels' => array(array('info', $ptitle_strings['info'], 'open'),
array('tb_show', $ptitle_strings['tb_show'], 'close'),
array('tb_create', $ptitle_strings['tb_create'], 'close'),
array('tb_modify', $ptitle_strings['tb_modify'], 'close'),
array('tb_delete', $ptitle_strings['tb_delete'], 'close')),
// panels on the Accessories page
's_accessories_panels'=>array(array('info', $ptitle_strings['info'], 'open'),
array('acc_index', $ptitle_strings['acc_index'], 'close'),
array('acc_gen', $ptitle_strings['acc_gen'], 'close'),
array('acc_trigger',$ptitle_strings['acc_trigger'],'close'),
array('acc_proc', $ptitle_strings['acc_proc'], 'close'),
array('acc_domain',$ptitle_strings['acc_domain'], 'close'),
array('acc_view', $ptitle_strings['acc_view'], 'close'),
array('acc_exc', $ptitle_strings['acc_exc'], 'close'),
array('acc_udf', $ptitle_strings['acc_udf'], 'close')),
// panels on the SQL page
's_sql_panels' => array(array('info', $ptitle_strings['info'], 'open'),
array('sql_enter', $ptitle_strings['sql_enter'], 'close'),
array('sql_output',$ptitle_strings['sql_output'], 'close'),
array('tb_watch', $ptitle_strings['tb_watch'], 'close')),
// panels on the Data page
's_data_panels' => array(array('info', $ptitle_strings['info'], 'open'),
array('dt_enter', $ptitle_strings['dt_enter'], 'close'),
array('dt_csv', $ptitle_strings['dt_csv'], 'close'),
array('tb_watch', $ptitle_strings['tb_watch'], 'close')),
// panels on the User page
's_users_panels' => array(array('info', $ptitle_strings['info'], 'open'),
array('usr_user', $ptitle_strings['usr_user'], 'close'),
array('usr_role', $ptitle_strings['usr_role'], 'close'),
// array('usr_grant',$ptitle_strings['usr_grant'],'close')),
array('usr_cust', $ptitle_strings['usr_cust'], 'close')),
// panels on the Admin page
's_admin_panels' => array(array('info', $ptitle_strings['info'], 'open'),
array('adm_server',$ptitle_strings['adm_server'],'close'),
array('adm_dbstat',$ptitle_strings['adm_dbstat'],'close'),
array('adm_gfix', $ptitle_strings['adm_gfix'], 'close'),
array('adm_backup',$ptitle_strings['adm_backup'],'close'),
array('adm_restore',$ptitle_strings['adm_restore'],'close'))
);
if (USE_DHTML == TRUE
&& ($session_vars['s_useragent']['ns6up'] == TRUE || $session_vars['s_useragent']['ie5up'] == TRUE)) {
$session_vars['s_use_jsrs'] = TRUE;
}
if (isset($HTTP_COOKIE_VARS['ibwa_customize'])) {
$session_vars['s_cust'] = set_customize_settings($HTTP_COOKIE_VARS['ibwa_customize']);
$session_vars = rearrange_panels($session_vars, $HTTP_COOKIE_VARS['ibwa_customize']);
}
foreach ($session_vars as $key => $val) {
session_register($key);
$HTTP_SESSION_VARS[$key] = $val;
}
localize_session_vars();
}
//
// copy all sessionvars from $HTTP_SESSION_VARS[] into the local scope
//
function localize_session_vars() {
global $HTTP_SESSION_VARS;
foreach($HTTP_SESSION_VARS as $sname => $svar) {
$GLOBALS[$sname] = $svar;
}
}
//
// store the local vars into the session
//
function globalize_session_vars() {
global $HTTP_SESSION_VARS;
$session_var_names =
array('s_init',
's_cookies',
's_stylesheet_etag',
's_connected',
's_binpath',
's_tab_menu',
's_useragent',
's_use_jsrs',
's_cust',
's_login',
's_create_db',
's_create_user',
's_create_pw',
's_create_host',
's_create_pagesize',
's_create_charset',
's_delete_db',
's_delete_user',
's_delete_pw',
's_delete_host',
's_systable',
's_tables',
's_fields',
's_foreigns',
's_primaries',
's_uniques',
's_tables_valid',
's_tables_counts',
's_charsets',
's_create_table',
's_create_num',
's_coldefs',
's_modify_name',
's_modify_col',
's_enter_name',
's_enter_values',
's_mod_domain',
's_domains',
's_domains_valid',
's_triggers',
's_triggers_valid',
's_triggerdefs',
's_viewdefs',
's_views_counts',
's_procedures',
's_proceduredefs',
's_procedures_valid',
's_indexes',
's_mod_index',
's_index_order',
's_index_dir',
's_udfs',
's_udfs_valid',
's_udfs_order',
's_udfs_dir',
's_exceptions',
's_exceptions_valid',
's_exceptions_order',
's_exceptions_dir',
's_exception_defs',
's_watch_table',
's_watch_columns',
's_watch_blinks',
's_watch_blobas',
's_watch_rows',
's_watch_start',
's_watch_direction',
's_watch_sort',
's_watch_edit',
's_watch_del',
's_watch_tblob_inline',
's_watch_tblob_chars',
's_watch_condition',
's_watch_fks',
's_watch_buffer',
's_sql',
's_edit_idx',
's_edit_where',
's_edit_values',
's_delete_idx',
's_confirmations',
's_sysdba_pw',
's_user_name',
's_sql_buffer',
's_sql_pointer',
's_housekeeping',
's_adm_dialect',
's_adm_buffers',
's_access_mode',
's_write_mode',
's_shut_secs',
's_adm_sweep_ignore',
's_adm_validate_ignore',
's_adm_validate',
's_adm_validate_option',
's_adm_transaction',
's_adm_shut_noconns',
's_adm_shut_notrans',
's_adm_shut_force',
's_adm_shut_reconnect',
's_adm_command',
's_backup',
's_restore',
's_csv',
's_POST',
's_GET',
's_database_panels',
's_tables_panels',
's_accessories_panels',
's_sql_panels',
's_data_panels',
's_users_panels',
's_admin_panels'
);
foreach ($session_var_names as $sname) {
if (isset($GLOBALS[$sname])) {
$HTTP_SESSION_VARS[$sname] = $GLOBALS[$sname];
} else {
unset($HTTP_SESSION_VARS[$sname]);
}
}
}
//
// reset the session variables which depending on the connected database
//
function cleanup_session() {
$GLOBALS['s_modify_table'] = '';
$GLOBALS['s_enter_name'] = '';
$GLOBALS['s_tables'] = array();
$GLOBALS['s_fields'] = array();
$GLOBALS['s_foreigns'] = array();
$GLOBALS['s_primaries'] = array();
$GLOBALS['s_uniques'] = array();
$GLOBALS['s_tables_valid'] = FALSE;
$GLOBALS['s_create_table'] = '';
$GLOBALS['s_create_num'] = '';
$GLOBALS['s_coldefs'] = array();
$GLOBALS['s_modify_name'] = '';
$GLOBALS['s_modify_col'] = '';
$GLOBALS['s_watch_table'] = '';
$GLOBALS['s_enter_name'] = '';
$GLOBALS['s_enter_values'] = array();
$GLOBALS['s_mod_domain'] = '';
$GLOBALS['s_domains'] = array();
$GLOBALS['s_domains_valid'] = FALSE;
$GLOBALS['s_triggers'] = array();
$GLOBALS['s_triggers_valid'] = FALSE;
$GLOBALS['s_triggerdefs'] = array();
$GLOBALS['s_indexes'] = array();
$GLOBALS['s_udfs'] = array();
$GLOBALS['s_udfs_valid'] = FALSE;
$GLOBALS['s_exceptions'] = array();
$GLOBALS['s_exceptions_valid'] = FALSE;
$GLOBALS['s_exception_defs'] = array();
$GLOBALS['s_mod_index'] = '';
$GLOBALS['s_watch_table'] = '';
$GLOBALS['s_watch_columns'] = array();
$GLOBALS['s_watch_blinks'] = array();
$GLOBALS['s_watch_blobas'] = array();
$GLOBALS['s_watch_start'] = 1;
$GLOBALS['s_watch_direction'] = 'Ascending';
$GLOBALS['s_watch_condition'] = '';
$GLOBALS['s_watch_sort'] = '';
$GLOBALS['s_watch_buffer'] = '';
$GLOBALS['s_watch_fks'] = array();
$GLOBALS['s_sql'] = array('queries' => array(),
'buffer' => '',
'more' => FALSE);
$GLOBALS['s_edit_idx'] = 0;
$GLOBALS['s_edit_where'] = array();
$GLOBALS['s_edit_values'] = array();
$GLOBALS['s_confirm_message'] = '';
$GLOBALS['s_confirm_return'] = '';
$GLOBALS['s_sysdba_pw'] = '';
$GLOBALS['s_user_name'] = '';
$GLOBALS['s_procedures'] = array();
$GLOBALS['s_proceduredefs'] = array();
$GLOBALS['s_procedures_valid'] = FALSE;
$GLOBALS['s_viewdefs'] = array('name' => '',
'source' => '',
'check' => 'no');
}
//
// determine whether php supports gd libraray with ttf and png,
// so that we can use the TabMenu.class.
//
function check_gd_ttf_png() {
$extensions = get_loaded_extensions();
if (in_array('gd', get_loaded_extensions())
&& function_exists('imagettfbbox')
&& function_exists('imagepng')) {
return TRUE;
}
return false;
}
//
// try to identify the users browser;
// the expressions are stolen from pear::Net/UserAgent/Detect.php
// and http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html
//
// returns an array with the found informations
//
function guess_useragent() {
global $HTTP_SERVER_VARS;
$agent = strtolower($HTTP_SERVER_VARS['HTTP_USER_AGENT']);
preg_match(';^([[:alpha:]]+)[ /\(]*[[:alpha:]]*([\d]*)\.([\d\.]*);', $agent, $matches);
list($null, $null, $majorversion, $subversion) = $matches;
$ua = array('majorversion' => $majorversion,
'subversion' => $subversion);
$ua['konq'] = strpos($agent, 'konqueror') !== false;
$ua['text'] = strpos($agent, 'links') !== false || strpos($agent, 'lynx') !== false || strpos($agent, 'w3m') !== false;
$ua['ns'] = strpos($agent, 'mozilla') !== false && !strpos($agent, 'spoofer') !== false && !strpos($agent, 'compatible') !== false
&& !strpos($agent, 'hotjava') !== false && !strpos($agent, 'opera') !== false && !strpos($agent, 'webtv') !== false;
$ua['ns2'] = $ua['ns'] && $majorversion == 2;
$ua['ns3'] = $ua['ns'] && $majorversion == 3;
$ua['ns4'] = $ua['ns'] && $majorversion == 4;
$ua['ns4up']= $ua['ns'] && $majorversion >= 4;
$ua['ns4down']= $ua['ns'] && $majorversion <= 4;
$ua['nav'] = $ua['ns'] && (strpos($agent, ';nav') !== false || (strpos($agent, '; nav') !== false));
$ua['ns6'] = !$ua['konq'] && $ua['ns'] && $majorversion == 5;
$ua['ns6up']= $ua['ns6'] && $majorversion >= 5;
$ua['gecko']= strpos($agent, 'gecko') !== false;
$ua['ie'] = strpos($agent, 'msie') !== false && !strpos($agent, 'opera') !== false;
$ua['ie3'] = $ua['ie'] && $majorversion < 4;
$ua['ie4'] = $ua['ie'] && $majorversion == 4 && (strpos($agent, 'msie 4') !== false);
$ua['ie4up']= $ua['ie'] && $majorversion >= 4;
$ua['ie5'] = $ua['ie'] && $majorversion == 4 && (strpos($agent, 'msie 5.0') !== false);
$ua['ie5_5']= $ua['ie'] && $majorversion == 4 && (strpos($agent, 'msie 5.5') !== false);
$ua['ie5up']= $ua['ie'] && !$ua['ie3'] && !$ua['ie4'];
$ua['ie5_5up']= $ua['ie'] && !$ua['ie3'] && !$ua['ie4'] && !$ua['ie5'];
$ua['ie6'] = $ua['ie'] && $majorversion == 4 && (strpos($agent, 'msie 6.') !== false);
$ua['ie6up'] = $ua['ie'] && !$ua['ie3'] && !$ua['ie4'] && !$ua['ie5'] && !$ua['ie5_5'];
$ua['opera'] = strpos($agent, 'opera') !== false;
$ua['opera2'] = strpos($agent, 'opera 2') !== false || strpos($agent, 'opera/2') !== false;
$ua['opera3'] = strpos($agent, 'opera 3') !== false || strpos($agent, 'opera/3') !== false;
$ua['opera4'] = strpos($agent, 'opera 4') !== false || strpos($agent, 'opera/4') !== false;
$ua['opera5'] = strpos($agent, 'opera 5') !== false || strpos($agent, 'opera/5') !== false;
$ua['opera5up'] = $ua['opera'] && !$ua['opera2'] && !$ua['opera3'] && !$ua['opera4'];
$ua['aol'] = strpos($agent, 'aol') !== false;
$ua['aol3'] = $ua['aol'] && $ua['ie3'];
$ua['aol4'] = $ua['aol'] && $ua['ie4'];
$ua['aol5'] = strpos($agent, 'aol 5') !== false;
$ua['aol6'] = strpos($agent, 'aol 6') !== false;
$ua['aol7'] = strpos($agent, 'aol 7') !== false;
$ua['webtv'] = strpos($agent, 'webtv') !== false;
$ua['tvnavigator'] = strpos($agent, 'navio') !== false || strpos($agent, 'navio_aoltv') !== false;
$ua['aoltv'] = $ua['tvnavigator'];
$ua['hotjava'] = strpos($agent, 'hotjava') !== false;
$ua['hotjava3'] = $ua['hotjava'] && $majorversion == 3;
$ua['hotjava3up'] = $ua['hotjava'] && $majorversion >= 3;
return $ua;
}
?>
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