[PHP] Errore "DEBUG MODE" su Forum !!!

[Fabrizio22]

Salve ragazzi, ho bisogno del vostro aiuto!!!!
Da questa notte il mio forum da il seguente errore, rendendo inaccessibile le varie sezioni dello stesso.

http://ns2947.ovh.net/~cristina/foru...forum.php?f=23

Nello specifico a me dice:
Couldn't obtain category list.
DEBUG MODE
SQL Error : 1030 Got error 28 from table handler

SELECT c.cat_id, c.cat_title, c.cat_order FROM phpbb_categories c, phpbb_forums f WHERE f.cat_id = c.cat_id GROUP BY c.cat_id, c.cat_title, c.cat_order ORDER BY c.cat_order

Line : 120
File : /home/cristina/www/forum/includes/functions.php


*****************
**********************
****************************
********************************

Cosa devo fare per risolvere il problema ? Indico qui sotto il testo contenuto all'interno del files incriminato
File : /home/cristina/www/forum/includes/functions.php





<?php
/***************************************************************************
* functions.php
* -------------------
* begin : Saturday, Feb 13, 2001
* copyright : (C) 2001 The phpBB Group
* email : [email protected]
*
* $Id: functions.php,v 1.133.2.32 2004/07/17 13:48:31 acydburn Exp $
*
*
***************************************************************************/

/***************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
*
***************************************************************************/

function get_db_stat($mode)
{
global $db;

switch( $mode )
{
case 'usercount':
$sql = "SELECT COUNT(user_id) AS total
FROM " . USERS_TABLE . "
WHERE user_id <> " . ANONYMOUS;
break;

case 'newestuser':
$sql = "SELECT user_id, username
FROM " . USERS_TABLE . "
WHERE user_id <> " . ANONYMOUS . "
ORDER BY user_id DESC
LIMIT 1";
break;

case 'postcount':
case 'topiccount':
$sql = "SELECT SUM(forum_topics) AS topic_total, SUM(forum_posts) AS post_total
FROM " . FORUMS_TABLE;
break;
}

if ( !($result = $db->sql_query($sql)) )
{
return false;
}

$row = $db->sql_fetchrow($result);

switch ( $mode )
{
case 'usercount':
return $row['total'];
break;
case 'newestuser':
return $row;
break;
case 'postcount':
return $row['post_total'];
break;
case 'topiccount':
return $row['topic_total'];
break;
}

return false;
}

//
// Get Userdata, $user can be username or user_id. If force_str is true, the username will be forced.
//
function get_userdata($user, $force_str = false)
{
global $db;

if (intval($user) == 0 || $force_str)
{
$user = trim(htmlspecialchars($user));
$user = substr(str_replace("\\'", "'", $user), 0, 25);
$user = str_replace("'", "\\'", $user);
}
else
{
$user = intval($user);
}

$sql = "SELECT *
FROM " . USERS_TABLE . "
WHERE ";
$sql .= ( ( is_integer($user) ) ? "user_id = $user" : "username = '" . $user . "'" ) . " AND user_id <> " . ANONYMOUS;
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Tried obtaining data for a non-existent user', '', __LINE__, __FILE__, $sql);
}

return ( $row = $db->sql_fetchrow($result) ) ? $row : false;
}

function make_jumpbox($action, $match_forum_id = 0)
{
global $template, $userdata, $lang, $db, $nav_links, $phpEx, $SID;

// $is_auth = auth(AUTH_VIEW, AUTH_LIST_ALL, $userdata);

$sql = "SELECT c.cat_id, c.cat_title, c.cat_order
FROM " . CATEGORIES_TABLE . " c, " . FORUMS_TABLE . " f
WHERE f.cat_id = c.cat_id
GROUP BY c.cat_id, c.cat_title, c.cat_order
ORDER BY c.cat_order";
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, "Couldn't obtain category list.", "", __LINE__, __FILE__, $sql);
}

$category_rows = array();
while ( $row = $db->sql_fetchrow($result) )
{
$category_rows[] = $row;
}

if ( $total_categories = count($category_rows) )
{
$sql = "SELECT *
FROM " . FORUMS_TABLE . "
ORDER BY cat_id, forum_order";
if ( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Could not obtain forums information', '', __LINE__, __FILE__, $sql);
}

$boxstring = '<select name="' . POST_FORUM_URL . '" onchange="if(this.options[this.selectedIndex].value != -1){ forms[\'jumpbox\'].submit() }"><option value="-1">' . $lang['Select_forum'] . '</option>';

$forum_rows = array();
while ( $row = $db->sql_fetchrow($result) )
{
$forum_rows[] = $row;
}

if ( $total_forums = count($forum_rows) )
{
for($i = 0; $i < $total_categories; $i++)
{
$boxstring_forums = '';
for($j = 0; $j < $total_forums; $j++)
{
if ( $forum_rows[$j]['cat_id'] == $category_rows[$i]['cat_id'] && $forum_rows[$j]['auth_view'] <= AUTH_REG )
{

// if ( $forum_rows[$j]['cat_id'] == $category_rows[$i]['cat_id'] && $is_auth[$forum_rows[$j]['forum_id']]['auth_view'] )
// {
$selected = ( $forum_rows[$j]['forum_id'] == $match_forum_id ) ? 'selected="selected"' : '';
$boxstring_forums .= '<option value="' . $forum_rows[$j]['forum_id'] . '"' . $selected . '>' . $forum_rows[$j]['forum_name'] . '</option>';

//
// Add an array to $nav_links for the Mozilla navigation bar.
// 'chapter' and 'forum' can create multiple items, therefore we are using a nested array.
//
$nav_links['chapter forum'][$forum_rows[$j]['forum_id']] = array (
'url' => append_sid("viewforum.$phpEx?" . POST_FORUM_URL . "=" . $forum_rows[$j]['forum_id']),
'title' => $forum_rows[$j]['forum_name']
);

}
}

if ( $boxstring_forums != '' )
{
$boxstring .= '<option value="-1">&nbsp;</option>';
$boxstring .= '<option value="-1">' . $category_rows[$i]['cat_title'] . '</option>';
$boxstring .= '<option value="-1">----------------</option>';
$boxstring .= $boxstring_forums;
}
}
}

$boxstring .= '</select>';
}
else
{
$boxstring .= '<select name="' . POST_FORUM_URL . '" onchange="if(this.options[this.selectedIndex].value != -1){ forms[\'jumpbox\'].submit() }"></select>';
}

// Let the jumpbox work again in sites having additional session id checks.
// if ( !empty($SID) )
// {
$boxstring .= '<input type="hidden" name="sid" value="' . $userdata['session_id'] . '" />';
// }

$template->set_filenames(array(
'jumpbox' => 'jumpbox.tpl')
);
$template->assign_vars(array(
'L_GO' => $lang['Go'],
'L_JUMP_TO' => $lang['Jump_to'],
'L_SELECT_FORUM' => $lang['Select_forum'],

'S_JUMPBOX_SELECT' => $boxstring,
'S_JUMPBOX_ACTION' => append_sid($action))
);
$template->assign_var_from_handle('JUMPBOX', 'jumpbox');

return;
}

//
// Initialise user settings on page load
function init_userprefs($userdata)
{
global $board_config, $theme, $images;
global $template, $lang, $phpEx, $phpbb_root_path;
global $nav_links;

if ( $userdata['user_id'] != ANONYMOUS )
{
if ( !empty($userdata['user_lang']))
{
$board_config['default_lang'] = $userdata['user_lang'];
}

if ( !empty($userdata['user_dateformat']) )
{
$board_config['default_dateformat'] = $userdata['user_dateformat'];
}

if ( isset($userdata['user_timezone']) )
{
$board_config['board_timezone'] = $userdata['user_timezone'];
}
}

if ( !file_exists(@phpbb_realpath($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/lang_main.'.$phpEx)) )
{
$board_config['default_lang'] = 'english';
}

include($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/lang_main.' . $phpEx);

if ( defined('IN_ADMIN') )
{
if( !file_exists(@phpbb_realpath($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/lang_admin.'.$phpEx)) )
{
$board_config['default_lang'] = 'english';
}

include($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/lang_admin.' . $phpEx);
}

//
// Set up style
//
if ( !$board_config['override_user_style'] )
{
if ( $userdata['user_id'] != ANONYMOUS && $userdata['user_style'] > 0 )
{
if ( $theme = setup_style($userdata['user_style']) )
{
return;
}
}
}

$theme = setup_style($board_config['default_style']);

//
// Mozilla navigation bar
// Default items that should be valid on all pages.
// Defined here to correctly assign the Language Variables
// and be able to change the variables within code.
//
$nav_links['top'] = array (
'url' => append_sid($phpbb_root_path . 'index.' . $phpEx),
'title' => sprintf($lang['Forum_Index'], $board_config['sitename'])
);
$nav_links['search'] = array (
'url' => append_sid($phpbb_root_path . 'search.' . $phpEx),
'title' => $lang['Search']
);
$nav_links['help'] = array (
'url' => append_sid($phpbb_root_path . 'faq.' . $phpEx),
'title' => $lang['FAQ']
);
$nav_links['author'] = array (
'url' => append_sid($phpbb_root_path . 'memberlist.' . $phpEx),
'title' => $lang['Memberlist']
);

return;
}

function setup_style($style)
{
global $db, $board_config, $template, $images, $phpbb_root_path;

$sql = "SELECT *
FROM " . THEMES_TABLE . "
WHERE themes_id = $style";
if ( !($result = $db->sql_query($sql)) )
{
message_die(CRITICAL_ERROR, 'Could not query database for theme info');
}

if ( !($row = $db->sql_fetchrow($result)) )
{
message_die(CRITICAL_ERROR, "Could not get theme data for themes_id [$style]");
}

$template_path = 'templates/' ;
$template_name = $row['template_name'] ;

$template = new Template($phpbb_root_path . $template_path . $template_name);

if ( $template )
{
$current_template_path = $template_path . $template_name;
@include($phpbb_root_path . $template_path . $template_name . '/' . $template_name . '.cfg');

if ( !defined('TEMPLATE_CONFIG') )
{
message_die(CRITICAL_ERROR, "Could not open $template_name template config file", '', __LINE__, __FILE__);
}

$img_lang = ( file_exists(@phpbb_realpath($phpbb_root_path . $current_template_path . '/images/lang_' . $board_config['default_lang'])) ) ? $board_config['default_lang'] : 'english';

while( list($key, $value) = @each($images) )
{
if ( !is_array($value) )
{
$images[$key] = str_replace('{LANG}', 'lang_' . $img_lang, $value);
}
}
}

return $row;
}

function encode_ip($dotquad_ip)
{
$ip_sep = explode('.', $dotquad_ip);
return sprintf('%02x%02x%02x%02x', $ip_sep[0], $ip_sep[1], $ip_sep[2], $ip_sep[3]);
}

function decode_ip($int_ip)
{
$hexipbang = explode('.', chunk_split($int_ip, 2, '.'));
return hexdec($hexipbang[0]). '.' . hexdec($hexipbang[1]) . '.' . hexdec($hexipbang[2]) . '.' . hexdec($hexipbang[3]);
}

//
// Create date/time from format and timezone
//
function create_date($format, $gmepoch, $tz)
{
global $board_config, $lang;
static $translate;

if ( empty($translate) && $board_config['default_lang'] != 'english' )
{
@reset($lang['datetime']);
while ( list($match, $replace) = @each($lang['datetime']) )
{
$translate[$match] = $replace;
}
}

return ( !empty($translate) ) ? strtr(@gmdate($format, $gmepoch + (3600 * $tz)), $translate) : @gmdate($format, $gmepoch + (3600 * $tz));
}

//
// Pagination routine, generates
// page number sequence
//
function generate_pagination($base_url, $num_items, $per_page, $start_item, $add_prevnext_text = TRUE)
{
global $lang;

$total_pages = ceil($num_items/$per_page);

if ( $total_pages == 1 )
{
return '';
}

$on_page = floor($start_item / $per_page) + 1;

$page_string = '';
if ( $total_pages > 10 )
{
$init_page_max = ( $total_pages > 3 ) ? 3 : $total_pages;

for($i = 1; $i < $init_page_max + 1; $i++)
{
$page_string .= ( $i == $on_page ) ? '<b>' . $i . '</b>' : '<a href="' . append_sid($base_url . "&amp;start=" . ( ( $i - 1 ) * $per_page ) ) . '">' . $i . '</a>';
if ( $i < $init_page_max )
{
$page_string .= ", ";
}
}

if ( $total_pages > 3 )
{
if ( $on_page > 1 && $on_page < $total_pages )
{
$page_string .= ( $on_page > 5 ) ? ' ... ' : ', ';

$init_page_min = ( $on_page > 4 ) ? $on_page : 5;
$init_page_max = ( $on_page < $total_pages - 4 ) ? $on_page : $total_pages - 4;

for($i = $init_page_min - 1; $i < $init_page_max + 2; $i++)
{
$page_string .= ($i == $on_page) ? '<b>' . $i . '</b>' : '<a href="' . append_sid($base_url . "&amp;start=" . ( ( $i - 1 ) * $per_page ) ) . '">' . $i . '</a>';
if ( $i < $init_page_max + 1 )
{
$page_string .= ', ';
}
}

$page_string .= ( $on_page < $total_pages - 4 ) ? ' ... ' : ', ';
}
else
{
$page_string .= ' ... ';
}

for($i = $total_pages - 2; $i < $total_pages + 1; $i++)
{
$page_string .= ( $i == $on_page ) ? '<b>' . $i . '</b>' : '<a href="' . append_sid($base_url . "&amp;start=" . ( ( $i - 1 ) * $per_page ) ) . '">' . $i . '</a>';
if( $i < $total_pages )
{
$page_string .= ", ";
}
}
}
}
else
{
for($i = 1; $i < $total_pages + 1; $i++)
{
$page_string .= ( $i == $on_page ) ? '<b>' . $i . '</b>' : '<a href="' . append_sid($base_url . "&amp;start=" . ( ( $i - 1 ) * $per_page ) ) . '">' . $i . '</a>';
if ( $i < $total_pages )
{
$page_string .= ', ';
}
}
}

if ( $add_prevnext_text )
{
if ( $on_page > 1 )
{
$page_string = ' <a href="' . append_sid($base_url . "&amp;start=" . ( ( $on_page - 2 ) * $per_page ) ) . '">' . $lang['Previous'] . '</a>&nbsp;&nbsp;' . $page_string;
}

if ( $on_page < $total_pages )
{
$page_string .= '&nbsp;&nbsp;<a href="' . append_sid($base_url . "&amp;start=" . ( $on_page * $per_page ) ) . '">' . $lang['Next'] . '</a>';
}

}

$page_string = $lang['Goto_page'] . ' ' . $page_string;

return $page_string;
}

//
// This does exactly what preg_quote() does in PHP 4-ish
// If you just need the 1-parameter preg_quote call, then don't bother using this.
//
function phpbb_preg_quote($str, $delimiter)
{
$text = preg_quote($str);
$text = str_replace($delimiter, '\\' . $delimiter, $text);

return $text;
}

//
// Obtain list of naughty words and build preg style replacement arrays for use by the
// calling script, note that the vars are passed as references this just makes it easier
// to return both sets of arrays
//
function obtain_word_list(&$orig_word, &$replacement_word)
{
global $db;

//
// Define censored word matches
//
$sql = "SELECT word, replacement
FROM " . WORDS_TABLE;
if( !($result = $db->sql_query($sql)) )
{
message_die(GENERAL_ERROR, 'Could not get censored words from database', '', __LINE__, __FILE__, $sql);
}

if ( $row = $db->sql_fetchrow($result) )
{
do
{
$orig_word[] = '#\b(' . str_replace('\*', '\w*?', phpbb_preg_quote($row['word'], '#')) . ')\b#i';
$replacement_word[] = $row['replacement'];
}
while ( $row = $db->sql_fetchrow($result) );
}

return true;
}

//
// This is general replacement for die(), allows templated
// output in users (or default) language, etc.
//
// $msg_code can be one of these constants:
//
// GENERAL_MESSAGE : Use for any simple text message, eg. results
// of an operation, authorisation failures, etc.
//
// GENERAL ERROR : Use for any error which occurs _AFTER_ the
// common.php include and session code, ie. most errors in
// pages/functions
//
// CRITICAL_MESSAGE : Used when basic config data is available but
// a session may not exist, eg. banned users
//
// CRITICAL_ERROR : Used when config data cannot be obtained, eg
// no database connection. Should _not_ be used in 99.5% of cases
//
function message_die($msg_code, $msg_text = '', $msg_title = '', $err_line = '', $err_file = '', $sql = '')
{
global $db, $template, $board_config, $theme, $lang, $phpEx, $phpbb_root_path, $nav_links, $gen_simple_header, $images;
global $userdata, $user_ip, $session_length;
global $starttime;

if(defined('HAS_DIED'))
{
die("message_die() was called multiple times. This isn't supposed to happen. Was message_die() used in page_tail.php?");
}

define(HAS_DIED, 1);


$sql_store = $sql;

//
// Get SQL error if we are debugging. Do this as soon as possible to prevent
// subsequent queries from overwriting the status of sql_error()
//
if ( DEBUG && ( $msg_code == GENERAL_ERROR || $msg_code == CRITICAL_ERROR ) )
{
$sql_error = $db->sql_error();

$debug_text = '';

if ( $sql_error['message'] != '' )
{
$debug_text .= '<br /><br />SQL Error : ' . $sql_error['code'] . ' ' . $sql_error['message'];
}

if ( $sql_store != '' )
{
$debug_text .= "<br /><br />$sql_store";
}

if ( $err_line != '' && $err_file != '' )
{
$debug_text .= '</br /><br />Line : ' . $err_line . '<br />File : ' . $err_file;
}
}

if( empty($userdata) && ( $msg_code == GENERAL_MESSAGE || $msg_code == GENERAL_ERROR ) )
{
$userdata = session_pagestart($user_ip, PAGE_INDEX);
init_userprefs($userdata);
}

//
// If the header hasn't been output then do it
//
if ( !defined('HEADER_INC') && $msg_code != CRITICAL_ERROR )
{
if ( empty($lang) )
{
if ( !empty($board_config['default_lang']) )
{
include($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/lang_main.'.$phpEx);
}
else
{
include($phpbb_root_path . 'language/lang_english/lang_main.'.$phpEx);
}
}

if ( empty($template) )
{
$template = new Template($phpbb_root_path . 'templates/' . $board_config['board_template']);
}
if ( empty($theme) )
{
$theme = setup_style($board_config['default_style']);
}

//
// Load the Page Header
//
if ( !defined('IN_ADMIN') )
{
include($phpbb_root_path . 'includes/page_header.'.$phpEx);
}
else
{
include($phpbb_root_path . 'admin/page_header_admin.'.$phpEx);
}
}

switch($msg_code)
{
case GENERAL_MESSAGE:
if ( $msg_title == '' )
{
$msg_title = $lang['Information'];
}
break;

case CRITICAL_MESSAGE:
if ( $msg_title == '' )
{
$msg_title = $lang['Critical_Information'];
}
break;

case GENERAL_ERROR:
if ( $msg_text == '' )
{
$msg_text = $lang['An_error_occured'];
}

if ( $msg_title == '' )
{
$msg_title = $lang['General_Error'];
}
break;

case CRITICAL_ERROR:
//
// Critical errors mean we cannot rely on _ANY_ DB information being
// available so we're going to dump out a simple echo'd statement
//
include($phpbb_root_path . 'language/lang_english/lang_main.'.$phpEx);

if ( $msg_text == '' )
{
$msg_text = $lang['A_critical_error'];
}

if ( $msg_title == '' )
{
$msg_title = 'phpBB : <b>' . $lang['Critical_Error'] . '</b>';
}
break;
}

//
// Add on DEBUG info if we've enabled debug mode and this is an error. This
// prevents debug info being output for general messages should DEBUG be
// set TRUE by accident (preventing confusion for the end user!)
//
if ( DEBUG && ( $msg_code == GENERAL_ERROR || $msg_code == CRITICAL_ERROR ) )
{
if ( $debug_text != '' )
{
$msg_text = $msg_text . '<br /><br /><b><u>DEBUG MODE</u></b>' . $debug_text;
}
}

if ( $msg_code != CRITICAL_ERROR )
{
if ( !empty($lang[$msg_text]) )
{
$msg_text = $lang[$msg_text];
}

if ( !defined('IN_ADMIN') )
{
$template->set_filenames(array(
'message_body' => 'message_body.tpl')
);
}
else
{
$template->set_filenames(array(
'message_body' => 'admin/admin_message_body.tpl')
);
}

$template->assign_vars(array(
'MESSAGE_TITLE' => $msg_title,
'MESSAGE_TEXT' => $msg_text)
);
$template->pparse('message_body');

if ( !defined('IN_ADMIN') )
{
include($phpbb_root_path . 'includes/page_tail.'.$phpEx);
}
else
{
include($phpbb_root_path . 'admin/page_footer_admin.'.$phpEx);
}
}
else
{
echo "<html>\n<body>\n" . $msg_title . "\n<br /><br />\n" . $msg_text . "</body>\n</html>";
}

exit;
}

//
// This function is for compatibility with PHP 4.x's realpath()
// function. In later versions of PHP, it needs to be called
// to do checks with some functions. Older versions of PHP don't
// seem to need this, so we'll just return the original value.
// dougk_ff7 <October 5, 2002>
function phpbb_realpath($path)
{
global $phpbb_root_path, $phpEx;

return (!@function_exists('realpath') || !@realpath($phpbb_root_path . 'includes/functions.'.$phpEx)) ? $path : @realpath($path);
}

function redirect($url)
{
global $db, $board_config;

if (!empty($db))
{
$db->sql_close();
}

if (strstr(urldecode($url), "\n") || strstr(urldecode($url), "\r"))
{
message_die(GENERAL_ERROR, 'Tried to redirect to potentially insecure url.');
}

$server_protocol = ($board_config['cookie_secure']) ? 'https://' : 'http://';
$server_name = preg_replace('#^\/?(.*?)\/?$#', '\1', trim($board_config['server_name']));
$server_port = ($board_config['server_port'] <> 80) ? ':' . trim($board_config['server_port']) : '';
$script_name = preg_replace('#^\/?(.*?)\/?$#', '\1', trim($board_config['script_path']));
$script_name = ($script_name == '') ? $script_name : '/' . $script_name;
$url = preg_replace('#^\/?(.*?)\/?$#', '/\1', trim($url));

// Redirect via an HTML form for PITA webservers
if (@preg_match('/Microsoft|WebSTAR|Xitami/', getenv('SERVER_SOFTWARE')))
{
header('Refresh: 0; URL=' . $server_protocol . $server_name . $server_port . $script_name . $url);
echo '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><meta http-equiv="refresh" content="0; url=' . $server_protocol . $server_name . $server_port . $script_name . $url . '"><title>Redirect</title></head><body><div align="center">If your browser does not support meta redirection please click <a href="' . $server_protocol . $server_name . $server_port . $script_name . $url . '">HERE</a> to be redirected</div></body></html>';
exit;
}

// Behave as per HTTP/1.1 spec for others
header('Location: ' . $server_protocol . $server_name . $server_port . $script_name . $url);
exit;
}

?>

[fantoibed]

Originariamente inviato da Fabrizio22
http://ns2947.ovh.net/~cristina/foru...forum.php?f=23

Nello specifico a me dice:
Couldn't obtain category list.
DEBUG MODE
SQL Error : 1030 Got error 28 from table handler

SELECT c.cat_id, c.cat_title, c.cat_order FROM phpbb_categories c, phpbb_forums f WHERE f.cat_id = c.cat_id GROUP BY c.cat_id, c.cat_title, c.cat_order ORDER BY c.cat_order

A me funziona perfettamente, forse avevano disattivato momentaneamente il server mysql per manutenzione...

[Fabrizio22]

ciao...vero, ora funziona...miracolosamente, meglio così......
Buon Anno ragazzi.....


Fabrizio