Current File : /home/admin/public_html/old/happyezystyle/board/Sources/Subs-Db-mysql.php
<?php
/**********************************************************************************
* Subs-Db-mysql.php *
***********************************************************************************
* SMF: Simple Machines Forum *
* Open-Source Project Inspired by Zef Hemel (zef@zefhemel.com) *
* =============================================================================== *
* Software Version: SMF 2.0 RC1 *
* Software by: Simple Machines (http://www.simplemachines.org) *
* Copyright 2006-2009 by: Simple Machines LLC (http://www.simplemachines.org) *
* 2001-2006 by: Lewis Media (http://www.lewismedia.com) *
* Support, News, Updates at: http://www.simplemachines.org *
***********************************************************************************
* This program is free software; you may redistribute it and/or modify it under *
* the terms of the provided license as published by Simple Machines LLC. *
* *
* This program is distributed in the hope that it is and will be useful, but *
* WITHOUT ANY WARRANTIES; without even any implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. *
* *
* See the "license.txt" file for details of the Simple Machines license. *
* The latest version can always be found at http://www.simplemachines.org. *
**********************************************************************************/
if (!defined('SMF'))
die('Hacking attempt...');
/* This file has all the main functions in it that relate to the database.
// !!!
*/
// Initialize the database settings
function smf_db_initiate($db_server, $db_name, $db_user, $db_passwd, $db_prefix, $db_options = array())
{
global $smcFunc, $mysql_set_mode;
// Map some database specific functions, only do this once.
if (!isset($smcFunc['db_fetch_assoc']) || $smcFunc['db_fetch_assoc'] != 'mysql_fetch_assoc')
$smcFunc += array(
'db_query' => 'smf_db_query',
'db_quote' => 'smf_db_quote',
'db_fetch_assoc' => 'mysql_fetch_assoc',
'db_fetch_row' => 'mysql_fetch_row',
'db_free_result' => 'mysql_free_result',
'db_insert' => 'smf_db_insert',
'db_insert_id' => 'smf_db_insert_id',
'db_num_rows' => 'mysql_num_rows',
'db_data_seek' => 'mysql_data_seek',
'db_num_fields' => 'mysql_num_fields',
'db_escape_string' => 'addslashes',
'db_unescape_string' => 'stripslashes',
'db_server_info' => 'mysql_get_server_info',
'db_affected_rows' => 'smf_db_affected_rows',
'db_transaction' => 'smf_db_transaction',
'db_error' => 'mysql_error',
'db_select_db' => 'mysql_select_db',
'db_title' => 'MySQL',
'db_sybase' => false,
'db_case_sensitive' => false,
'db_escape_wildcard_string' => 'smf_db_escape_wildcard_string',
);
if (!empty($db_options['persist']))
$connection = @mysql_pconnect($db_server, $db_user, $db_passwd);
else
$connection = @mysql_connect($db_server, $db_user, $db_passwd);
// Something's wrong, show an error if its fatal (which we assume it is)
if (!$connection)
{
if (!empty($db_options['non_fatal']))
{
return null;
}
else
{
db_fatal_error();
}
}
// Select the database, unless told not to
if (empty($db_options['dont_select_db']) && !@mysql_select_db($db_name, $connection) && empty($db_options['non_fatal']))
db_fatal_error();
// This makes it possible to have SMF automatically change the sql_mode and autocommit if needed.
if (isset($mysql_set_mode) && $mysql_set_mode === true)
$smcFunc['db_query']('', 'SET sql_mode = \'\', AUTOCOMMIT = 1',
array(
), false
);
return $connection;
}
// Extend the database functionality.
function db_extend ($type = 'extra')
{
global $sourcedir, $db_type;
require_once($sourcedir . '/Db' . strtoupper($type{0}) . substr($type, 1) . '-' . $db_type . '.php');
$initFunc = 'db_' . $type . '_init';
$initFunc();
}
// Fix up the prefix so it doesn't require the database to be selected.
function db_fix_prefix (&$db_prefix, $db_name)
{
$db_prefix = is_numeric(substr($db_prefix, 0, 1)) ? $db_name . '.' . $db_prefix : '`' . $db_name . '`.' . $db_prefix;
}
function smf_db_replacement__callback($matches)
{
global $db_callback, $user_info, $db_prefix;
list ($values, $connection) = $db_callback;
if ($matches[1] === 'db_prefix')
return $db_prefix;
if ($matches[1] === 'query_see_board')
return $user_info['query_see_board'];
if ($matches[1] === 'query_wanna_see_board')
return $user_info['query_wanna_see_board'];
if (!isset($matches[2]))
smf_db_error_backtrace('Invalid value inserted or no type specified.', '', E_USER_ERROR, __FILE__, __LINE__);
if (!isset($values[$matches[2]]))
smf_db_error_backtrace('The database value you\'re trying to insert does not exist: ' . htmlspecialchars($matches[2]), '', E_USER_ERROR, __FILE__, __LINE__);
$replacement = $values[$matches[2]];
switch ($matches[1])
{
case 'int':
if (!is_numeric($replacement) || (string) $replacement !== (string) (int) $replacement)
smf_db_error_backtrace('Wrong value type sent to the database. Integer expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
return (string) (int) $replacement;
break;
case 'string':
case 'text':
return sprintf('\'%1$s\'', mysql_real_escape_string($replacement, $connection));
break;
case 'array_int':
if (is_array($replacement))
{
if (empty($replacement))
smf_db_error_backtrace('Database error, given array of integer values is empty. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
foreach ($replacement as $key => $value)
{
if (!is_numeric($value) || (string) $value !== (string) (int) $value)
smf_db_error_backtrace('Wrong value type sent to the database. Array of integers expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
$replacement[$key] = (string) (int) $value;
}
return implode(', ', $replacement);
}
else
smf_db_error_backtrace('Wrong value type sent to the database. Array of integers expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
break;
case 'array_string':
if (is_array($replacement))
{
if (empty($replacement))
smf_db_error_backtrace('Database error, given array of string values is empty. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
foreach ($replacement as $key => $value)
$replacement[$key] = sprintf('\'%1$s\'', mysql_real_escape_string($value, $connection));
return implode(', ', $replacement);
}
else
smf_db_error_backtrace('Wrong value type sent to the database. Array of strings expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
break;
case 'date':
if (preg_match('~^(\d{4})-([0-1]?\d)-([0-3]?\d)$~', $replacement, $date_matches) === 1)
return sprintf('\'%04d-%02d-%02d\'', $date_matches[1], $date_matches[2], $date_matches[3]);
else
smf_db_error_backtrace('Wrong value type sent to the database. Date expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
break;
case 'float':
if (!is_numeric($replacement))
smf_db_error_backtrace('Wrong value type sent to the database. Floating point number expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
return (string) (float) $replacement;
break;
case 'identifier':
// Backticks inside identifiers are supported as of MySQL 4.1. We don't need them for SMF.
return '`' . strtr($replacement, array('`' => '', '.' => '')) . '`';
break;
case 'raw':
return $replacement;
break;
default:
smf_db_error_backtrace('Undefined type used in the database query. (' . $matches[2] . ')', '', false, __FILE__, __LINE__);
break;
}
}
// Just like the db_query, escape and quote a string, but not executing the query.
function smf_db_quote($db_string, $db_values, $connection = null)
{
global $db_callback, $db_connection;
// Only bother if there's something to replace.
if (strpos($db_string, '{') !== false)
{
// This is needed by the callback function.
$db_callback = array($db_values, $connection == null ? $db_connection : $connection);
// Do the quoting and escaping
$db_string = preg_replace_callback('~{([a-z_]+)(?::([a-zA-Z0-9_-]+))?}~', 'smf_db_replacement__callback', $db_string);
// Clear this global variable.
$db_callback = array();
}
return $db_string;
}
// Do a query. Takes care of errors too.
function smf_db_query($identifier, $db_string, $db_values = array(), $connection = null)
{
global $db_cache, $db_count, $db_connection, $db_show_debug;
global $db_unbuffered, $db_callback, $modSettings;
// Comments that are allowed in a query are preg_removed.
static $allowed_comments_from = array(
'~\s+~s',
'~/\*!40001 SQL_NO_CACHE \*/~',
'~/\*!40000 USE INDEX \([A-Za-z\_]+?\) \*/~',
'~/\*!40100 ON DUPLICATE KEY UPDATE id_msg = \d+ \*/~',
);
static $allowed_comments_to = array(
' ',
'',
'',
'',
);
// Decide which connection to use.
$connection = $connection == null ? $db_connection : $connection;
// One more query....
$db_count = !isset($db_count) ? 1 : $db_count + 1;
// Overriding security? This is evil!
$security_override = $db_values === 'security_override' || !empty($db_values['security_override']);
if (empty($modSettings['disableQueryCheck']) && strpos($db_string, '\'') !== false && !$security_override)
smf_db_error_backtrace('Hacking attempt...', 'Illegal character (\') used in query...', true, __FILE__, __LINE__);
if (!$security_override && (!empty($db_values) || strpos($db_string, '{db_prefix}') !== false))
{
// Pass some values to the global space for use in the callback function.
$db_callback = array($db_values, $connection);
// Inject the values passed to this function.
$db_string = preg_replace_callback('~{([a-z_]+)(?::([a-zA-Z0-9_-]+))?}~', 'smf_db_replacement__callback', $db_string);
// This shouldn't be residing in global space any longer.
$db_callback = array();
}
// Debugging.
if (isset($db_show_debug) && $db_show_debug === true)
{
// Get the file and line number this function was called.
list ($file, $line) = smf_db_error_backtrace('', '', 'return', __FILE__, __LINE__);
// Initialize $db_cache if not already initialized.
if (!isset($db_cache))
$db_cache = array();
if (!empty($_SESSION['debug_redirect']))
{
$db_cache = array_merge($_SESSION['debug_redirect'], $db_cache);
$db_count = count($db_cache) + 1;
$_SESSION['debug_redirect'] = array();
}
// Don't overload it.
$db_cache[$db_count]['q'] = $db_count < 50 ? $db_string : '...';
$db_cache[$db_count]['f'] = $file;
$db_cache[$db_count]['l'] = $line;
$st = microtime();
}
// First, we clean strings out of the query, reduce whitespace, lowercase, and trim - so we can check it over.
if (empty($modSettings['disableQueryCheck']))
{
$clean = '';
$old_pos = 0;
$pos = -1;
while (true)
{
$pos = strpos($db_string, '\'', $pos + 1);
if ($pos === false)
break;
$clean .= substr($db_string, $old_pos, $pos - $old_pos);
while (true)
{
$pos1 = strpos($db_string, '\'', $pos + 1);
$pos2 = strpos($db_string, '\\', $pos + 1);
if ($pos1 === false)
break;
elseif ($pos2 == false || $pos2 > $pos1)
{
$pos = $pos1;
break;
}
$pos = $pos2 + 1;
}
$clean .= ' %s ';
$old_pos = $pos + 1;
}
$clean .= substr($db_string, $old_pos);
$clean = trim(strtolower(preg_replace($allowed_comments_from, $allowed_comments_to, $clean)));
// We don't use UNION in SMF, at least so far. But it's useful for injections.
if (strpos($clean, 'union') !== false && preg_match('~(^|[^a-z])union($|[^[a-z])~s', $clean) != 0)
$fail = true;
// Comments? We don't use comments in our queries, we leave 'em outside!
elseif (strpos($clean, '/*') > 2 || strpos($clean, '--') !== false || strpos($clean, ';') !== false)
$fail = true;
// Trying to change passwords, slow us down, or something?
elseif (strpos($clean, 'sleep') !== false && preg_match('~(^|[^a-z])sleep($|[^[_a-z])~s', $clean) != 0)
$fail = true;
elseif (strpos($clean, 'benchmark') !== false && preg_match('~(^|[^a-z])benchmark($|[^[a-z])~s', $clean) != 0)
$fail = true;
// Sub selects? We don't use those either.
elseif (preg_match('~\([^)]*?select~s', $clean) != 0)
$fail = true;
if (!empty($fail) && function_exists('log_error'))
smf_db_error_backtrace('Hacking attempt...', 'Hacking attempt...' . "\n" . $db_string, E_USER_ERROR, __FILE__, __LINE__);
}
if (empty($db_unbuffered))
$ret = @mysql_query($db_string, $connection);
else
$ret = @mysql_unbuffered_query($db_string, $connection);
if ($ret === false && empty($db_values['db_error_skip']))
$ret = smf_db_error($db_string, $connection);
// Debugging.
if (isset($db_show_debug) && $db_show_debug === true)
$db_cache[$db_count]['t'] = array_sum(explode(' ', microtime())) - array_sum(explode(' ', $st));
return $ret;
}
function smf_db_affected_rows($connection = null)
{
global $db_connection;
return mysql_affected_rows($connection == null ? $db_connection : $connection);
}
function smf_db_insert_id($table, $field = null, $connection = null)
{
global $db_connection, $db_prefix;
$table = str_replace('{db_prefix}', $db_prefix, $table);
// MySQL doesn't need the table or field information.
return mysql_insert_id($connection == null ? $db_connection : $connection);
}
// Do a transaction.
function smf_db_transaction($type = 'commit', $connection = null)
{
global $db_connection;
// Decide which connection to use
$connection = $connection == null ? $db_connection : $connection;
if ($type == 'begin')
return @mysql_query('BEGIN', $connection);
elseif ($type == 'rollback')
return @mysql_query('ROLLBACK', $connection);
elseif ($type == 'commit')
return @mysql_query('COMMIT', $connection);
return false;
}
// Database error!
function smf_db_error($db_string, $connection = null)
{
global $txt, $context, $sourcedir, $webmaster_email, $modSettings;
global $forum_version, $db_connection, $db_last_error, $db_persist;
global $db_server, $db_user, $db_passwd, $db_name, $db_show_debug, $ssi_db_user, $ssi_db_passwd;
global $smcFunc;
// Get the file and line numbers.
list ($file, $line) = smf_db_error_backtrace('', '', 'return', __FILE__, __LINE__);
// Decide which connection to use
$connection = $connection == null ? $db_connection : $connection;
// This is the error message...
$query_error = mysql_error($connection);
$query_errno = mysql_errno($connection);
// Error numbers:
// 1016: Can't open file '....MYI'
// 1030: Got error ??? from table handler.
// 1034: Incorrect key file for table.
// 1035: Old key file for table.
// 1205: Lock wait timeout exceeded.
// 1213: Deadlock found.
// 2006: Server has gone away.
// 2013: Lost connection to server during query.
// Log the error.
if ($query_errno != 1213 && $query_errno != 1205 && function_exists('log_error'))
log_error($txt['database_error'] . ': ' . $query_error . (!empty($modSettings['enableErrorQueryLogging']) ? "\n\n$db_string" : ''), 'database', $file, $line);
// Database error auto fixing ;).
if (function_exists('cache_get_data') && (!isset($modSettings['autoFixDatabase']) || $modSettings['autoFixDatabase'] == '1'))
{
// Force caching on, just for the error checking.
$old_cache = @$modSettings['cache_enable'];
$modSettings['cache_enable'] = '1';
if (($temp = cache_get_data('db_last_error', 600)) !== null)
$db_last_error = max(@$db_last_error, $temp);
if (@$db_last_error < time() - 3600 * 24 * 3)
{
// We know there's a problem... but what? Try to auto detect.
if ($query_errno == 1030 && strpos($query_error, ' 127 ') !== false)
{
preg_match_all('~(?:[\n\r]|^)[^\']+?(?:FROM|JOIN|UPDATE|TABLE) ((?:[^\n\r(]+?(?:, )?)*)~s', $db_string, $matches);
$fix_tables = array();
foreach ($matches[1] as $tables)
{
$tables = array_unique(explode(',', $tables));
foreach ($tables as $table)
{
// Now, it's still theoretically possible this could be an injection. So backtick it!
if (trim($table) != '')
$fix_tables[] = '`' . strtr(trim($table), array('`' => '')) . '`';
}
}
$fix_tables = array_unique($fix_tables);
}
// Table crashed. Let's try to fix it.
elseif ($query_errno == 1016)
{
if (preg_match('~\'([^\.\']+)~', $query_error, $match) != 0)
$fix_tables = array('`' . $match[1] . '`');
}
// Indexes crashed. Should be easy to fix!
elseif ($query_errno == 1034 || $query_errno == 1035)
{
preg_match('~\'([^\']+?)\'~', $query_error, $match);
$fix_tables = array('`' . $match[1] . '`');
}
}
// Check for errors like 145... only fix it once every three days, and send an email. (can't use empty because it might not be set yet...)
if (!empty($fix_tables))
{
// Subs-Admin.php for updateSettingsFile(), Subs-Post.php for sendmail().
require_once($sourcedir . '/Subs-Admin.php');
require_once($sourcedir . '/Subs-Post.php');
// Make a note of the REPAIR...
cache_put_data('db_last_error', time(), 600);
if (($temp = cache_get_data('db_last_error', 600)) === null)
updateSettingsFile(array('db_last_error' => time()));
// Attempt to find and repair the broken table.
foreach ($fix_tables as $table)
$smcFunc['db_query']('', "
REPAIR TABLE $table", false, false);
// And send off an email!
sendmail($webmaster_email, $txt['database_error'], $txt['tried_to_repair']);
$modSettings['cache_enable'] = $old_cache;
// Try the query again...?
$ret = $smcFunc['db_query']('', $db_string, false, false);
if ($ret !== false)
return $ret;
}
else
$modSettings['cache_enable'] = $old_cache;
// Check for the "lost connection" or "deadlock found" errors - and try it just one more time.
if (in_array($query_errno, array(1205, 1213, 2006, 2013)))
{
if (in_array($query_errno, array(2006, 2013)) && $db_connection == $connection)
{
// Are we in SSI mode? If so try that username and password first
if (SMF == 'SSI' && !empty($ssi_db_user) && !empty($ssi_db_passwd))
{
if (empty($db_persist))
$db_connection = @mysql_connect($db_server, $ssi_db_user, $ssi_db_passwd);
else
$db_connection = @mysql_pconnect($db_server, $ssi_db_user, $ssi_db_passwd);
}
// Fall back to the regular username and password if need be
if (!$db_connection)
{
if (empty($db_persist))
$db_connection = @mysql_connect($db_server, $db_user, $db_passwd);
else
$db_connection = @mysql_pconnect($db_server, $db_user, $db_passwd);
}
if (!$db_connection || !@mysql_select_db($db_name, $db_connection))
$db_connection = false;
}
if ($db_connection)
{
// Try a deadlock more than once more.
for ($n = 0; $n < 4; $n++)
{
$ret = $smcFunc['db_query']('', $db_string, false, false);
$new_errno = mysql_errno($db_connection);
if ($ret !== false || in_array($new_errno, array(1205, 1213)))
break;
}
// If it failed again, shucks to be you... we're not trying it over and over.
if ($ret !== false)
return $ret;
}
}
// Are they out of space, perhaps?
elseif ($query_errno == 1030 && (strpos($query_error, ' -1 ') !== false || strpos($query_error, ' 28 ') !== false || strpos($query_error, ' 12 ') !== false))
{
if (!isset($txt))
$query_error .= ' - check database storage space.';
else
{
if (!isset($txt['mysql_error_space']))
loadLanguage('Errors');
$query_error .= !isset($txt['mysql_error_space']) ? ' - check database storage space.' : $txt['mysql_error_space'];
}
}
}
// Nothing's defined yet... just die with it.
if (empty($context) || empty($txt))
die($query_error);
// Show an error message, if possible.
$context['error_title'] = $txt['database_error'];
if (allowedTo('admin_forum'))
$context['error_message'] = nl2br($query_error) . '<br />' . $txt['file'] . ': ' . $file . '<br />' . $txt['line'] . ': ' . $line;
else
$context['error_message'] = $txt['try_again'];
// A database error is often the sign of a database in need of updgrade. Check forum versions, and if not identical suggest an upgrade... (not for Demo/CVS versions!)
if (allowedTo('admin_forum') && !empty($forum_version) && $forum_version != 'SMF ' . @$modSettings['smfVersion'] && strpos($forum_version, 'Demo') === false && strpos($forum_version, 'CVS') === false)
$context['error_message'] .= '<br /><br />' . sprintf($txt['database_error_versions'], $forum_version, $modSettings['smfVersion']);
if (allowedTo('admin_forum') && isset($db_show_debug) && $db_show_debug === true)
{
$context['error_message'] .= '<br /><br />' . nl2br($db_string);
}
// It's already been logged... don't log it again.
fatal_error($context['error_message'], false);
}
// Insert some data...
function smf_db_insert($method = 'replace', $table, $columns, $data, $keys, $disable_trans = false, $connection = null)
{
global $smcFunc, $db_connection, $db_prefix;
$connection = $connection === null ? $db_connection : $connection;
// With nothing to insert, simply return.
if (empty($data))
return;
// Replace the prefix holder with the actual prefix.
$table = str_replace('{db_prefix}', $db_prefix, $table);
// Inserting data as a single row can be done as a single array.
if (!is_array($data[array_rand($data)]))
$data = array($data);
// Create the mold for a single row insert.
$insertData = '(';
foreach ($columns as $columnName => $type)
{
// Are we restricting the length?
if (strpos($type, 'string-') !== false)
$insertData .= sprintf('SUBSTRING({string:%1$s}, 1, ' . substr($type, 7) . '), ', $columnName);
else
$insertData .= sprintf('{%1$s:%2$s}, ', $type, $columnName);
}
$insertData = substr($insertData, 0, -2) . ')';
// Create an array consisting of only the columns.
$indexed_columns = array_keys($columns);
// Here's where the variables are injected to the query.
$insertRows = array();
foreach ($data as $dataRow)
$insertRows[] = smf_db_quote($insertData, array_combine($indexed_columns, $dataRow), $connection);
// Determine the method of insertion.
$queryTitle = $method == 'replace' ? 'REPLACE' : ($method == 'ignore' ? 'INSERT IGNORE' : 'INSERT');
// Do the insert.
$smcFunc['db_query']('', '
' . $queryTitle . ' INTO ' . $table . '(`' . implode('`, `', $indexed_columns) . '`)
VALUES
' . implode(',
', $insertRows),
array(
'security_override' => true,
),
$connection
);
}
// This function tries to work out additional error information from a back trace.
function smf_db_error_backtrace($error_message, $log_message = '', $error_type = false, $file = null, $line = null)
{
if (empty($log_message))
$log_message = $error_message;
if (function_exists('debug_backtrace'))
{
foreach (debug_backtrace() as $step)
{
// Found it?
if (strpos($step['function'], 'query') === false && !in_array(substr($step['function'], 0, 7), array('smf_db_', 'preg_re', 'db_erro')))
{
$log_message .= '<br />Function: ' . $step['function'];
break;
}
if (isset($step['line']))
{
$file = $step['file'];
$line = $step['line'];
}
}
}
// A special case - we want the file and line numbers for debugging.
if ($error_type == 'return')
return array($file, $line);
// Is always a critical error.
if (function_exists('log_error'))
log_error($log_message, 'critical', $file, $line);
if (function_exists('fatal_error'))
{
fatal_error($error_message, false);
// Cannot continue...
exit;
}
elseif ($error_type)
trigger_error($error_message . ($line !== null ? '<i>(' . basename($file) . '-' . $line . ')</i>' : ''), $error_type);
else
trigger_error($error_message . ($line !== null ? '<i>(' . basename($file) . '-' . $line . ')</i>' : ''));
}
// Escape the LIKE wildcards so that they match the character and not the wildcard.
// The optional second parameter turns human readable wildcards into SQL wildcards.
function smf_db_escape_wildcard_string($string, $translate_human_wildcards=false)
{
$replacements = array(
'%' => '\%',
'_' => '\_',
'\\' => '\\\\',
);
if ($translate_human_wildcards)
$replacements += array(
'*' => '%',
);
return strtr($string, $replacements);
}
?>