1102 lines
No EOL
36 KiB
PHP
1102 lines
No EOL
36 KiB
PHP
<?php
|
|
|
|
/**
|
|
* This file has all the main functions in it that relate to the database.
|
|
*
|
|
* Simple Machines Forum (SMF)
|
|
*
|
|
* @package SMF
|
|
* @author Simple Machines https://www.simplemachines.org
|
|
* @copyright 2022 Simple Machines and individual contributors
|
|
* @license https://www.simplemachines.org/about/smf/license.php BSD
|
|
*
|
|
* @version 2.1.3
|
|
*/
|
|
|
|
if (!defined('SMF'))
|
|
die('No direct access...');
|
|
|
|
/**
|
|
* Maps the implementations in this file (smf_db_function_name)
|
|
* to the $smcFunc['db_function_name'] variable.
|
|
*
|
|
* @param string $db_server The database server
|
|
* @param string $db_name The name of the database
|
|
* @param string $db_user The database username
|
|
* @param string $db_passwd The database password
|
|
* @param string $db_prefix The table prefix
|
|
* @param array $db_options An array of database options
|
|
* @return null|resource Returns null on failure if $db_options['non_fatal'] is true or a MySQL connection resource handle if the connection was successful.
|
|
*/
|
|
function smf_db_initiate($db_server, $db_name, $db_user, $db_passwd, $db_prefix, $db_options = array())
|
|
{
|
|
global $smcFunc;
|
|
|
|
// Map some database specific functions, only do this once.
|
|
if (!isset($smcFunc['db_fetch_assoc']))
|
|
$smcFunc += array(
|
|
'db_query' => 'smf_db_query',
|
|
'db_quote' => 'smf_db_quote',
|
|
'db_fetch_assoc' => 'mysqli_fetch_assoc',
|
|
'db_fetch_row' => 'mysqli_fetch_row',
|
|
'db_free_result' => 'mysqli_free_result',
|
|
'db_insert' => 'smf_db_insert',
|
|
'db_insert_id' => 'smf_db_insert_id',
|
|
'db_num_rows' => 'mysqli_num_rows',
|
|
'db_data_seek' => 'mysqli_data_seek',
|
|
'db_num_fields' => 'mysqli_num_fields',
|
|
'db_escape_string' => 'smf_db_escape_string',
|
|
'db_unescape_string' => 'stripslashes',
|
|
'db_server_info' => 'smf_db_get_server_info',
|
|
'db_affected_rows' => 'smf_db_affected_rows',
|
|
'db_transaction' => 'smf_db_transaction',
|
|
'db_error' => 'mysqli_error',
|
|
'db_select_db' => 'smf_db_select',
|
|
'db_title' => MYSQL_TITLE,
|
|
'db_sybase' => false,
|
|
'db_case_sensitive' => false,
|
|
'db_escape_wildcard_string' => 'smf_db_escape_wildcard_string',
|
|
'db_is_resource' => 'smf_is_resource',
|
|
'db_mb4' => false,
|
|
'db_ping' => 'mysqli_ping',
|
|
'db_fetch_all' => 'smf_db_fetch_all',
|
|
'db_error_insert' => 'smf_db_error_insert',
|
|
'db_custom_order' => 'smf_db_custom_order',
|
|
'db_native_replace' => 'smf_db_native_replace',
|
|
'db_cte_support' => 'smf_db_cte_support',
|
|
'db_connect_error' => 'mysqli_connect_error',
|
|
'db_connect_errno' => 'mysqli_connect_errno',
|
|
);
|
|
|
|
if (!empty($db_options['persist']))
|
|
$db_server = 'p:' . $db_server;
|
|
|
|
// We are not going to make it very far without these.
|
|
if (!function_exists('mysqli_init') || !function_exists('mysqli_real_connect'))
|
|
display_db_error();
|
|
|
|
// This was the default prior to PHP 8.1, and all our code assumes it.
|
|
mysqli_report(MYSQLI_REPORT_OFF);
|
|
|
|
$connection = mysqli_init();
|
|
|
|
$flags = 2; // MYSQLI_CLIENT_FOUND_ROWS = 2
|
|
|
|
$success = false;
|
|
|
|
if ($connection)
|
|
{
|
|
if (!empty($db_options['port']))
|
|
$success = @mysqli_real_connect($connection, $db_server, $db_user, $db_passwd, null, $db_options['port'], null, $flags);
|
|
else
|
|
$success = @mysqli_real_connect($connection, $db_server, $db_user, $db_passwd, null, 0, null, $flags);
|
|
}
|
|
|
|
// Something's wrong, show an error if its fatal (which we assume it is)
|
|
if ($success === false)
|
|
{
|
|
if (!empty($db_options['non_fatal']))
|
|
return null;
|
|
else
|
|
display_db_error();
|
|
}
|
|
|
|
// Select the database, unless told not to
|
|
if (empty($db_options['dont_select_db']) && !@mysqli_select_db($connection, $db_name) && empty($db_options['non_fatal']))
|
|
display_db_error();
|
|
|
|
mysqli_query($connection, 'SET SESSION sql_mode = \'ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION,PIPES_AS_CONCAT\'');
|
|
|
|
if (!empty($db_options['db_mb4']))
|
|
$smcFunc['db_mb4'] = (bool) $db_options['db_mb4'];
|
|
|
|
return $connection;
|
|
}
|
|
|
|
/**
|
|
* Extend the database functionality. It calls the respective file's init
|
|
* to add the implementations in that file to $smcFunc array.
|
|
*
|
|
* @param string $type Indicates which additional file to load. ('extra', 'packages')
|
|
*/
|
|
function db_extend($type = 'extra')
|
|
{
|
|
global $sourcedir;
|
|
|
|
// we force the MySQL files as nothing syntactically changes with MySQLi
|
|
require_once($sourcedir . '/Db' . strtoupper($type[0]) . substr($type, 1) . '-mysql.php');
|
|
$initFunc = 'db_' . $type . '_init';
|
|
$initFunc();
|
|
}
|
|
|
|
/**
|
|
* Fix up the prefix so it doesn't require the database to be selected.
|
|
*
|
|
* @param string &$db_prefix The table prefix
|
|
* @param string $db_name The database name
|
|
*/
|
|
function db_fix_prefix(&$db_prefix, $db_name)
|
|
{
|
|
$db_prefix = is_numeric(substr($db_prefix, 0, 1)) ? $db_name . '.' . $db_prefix : '`' . $db_name . '`.' . $db_prefix;
|
|
}
|
|
|
|
/**
|
|
* Wrap mysqli_select_db so the connection does not need to be specified
|
|
*
|
|
* @param string &$database The database
|
|
* @param object $connection The connection object (if null, $db_connection is used)
|
|
* @return bool Whether the database was selected
|
|
*/
|
|
function smf_db_select($database, $connection = null)
|
|
{
|
|
global $db_connection;
|
|
return mysqli_select_db($connection === null ? $db_connection : $connection, $database);
|
|
}
|
|
|
|
/**
|
|
* Wrap mysqli_get_server_info so the connection does not need to be specified
|
|
*
|
|
* @param object $connection The connection to use (if null, $db_connection is used)
|
|
* @return string The server info
|
|
*/
|
|
function smf_db_get_server_info($connection = null)
|
|
{
|
|
global $db_connection;
|
|
return mysqli_get_server_info($connection === null ? $db_connection : $connection);
|
|
}
|
|
|
|
/**
|
|
* Callback for preg_replace_callback on the query.
|
|
* It allows to replace on the fly a few pre-defined strings, for convenience ('query_see_board', 'query_wanna_see_board', etc), with
|
|
* their current values from $user_info.
|
|
* In addition, it performs checks and sanitization on the values sent to the database.
|
|
*
|
|
* @param array $matches The matches from preg_replace_callback
|
|
* @return string The appropriate string depending on $matches[1]
|
|
*/
|
|
function smf_db_replacement__callback($matches)
|
|
{
|
|
global $db_callback, $user_info, $db_prefix, $smcFunc;
|
|
|
|
list ($values, $connection) = $db_callback;
|
|
if (!is_object($connection))
|
|
display_db_error();
|
|
|
|
if ($matches[1] === 'db_prefix')
|
|
return $db_prefix;
|
|
|
|
if (isset($user_info[$matches[1]]) && strpos($matches[1], 'query_') !== false)
|
|
return $user_info[$matches[1]];
|
|
|
|
if ($matches[1] === 'empty')
|
|
return '\'\'';
|
|
|
|
if (!isset($matches[2]))
|
|
smf_db_error_backtrace('Invalid value inserted or no type specified.', '', E_USER_ERROR, __FILE__, __LINE__);
|
|
|
|
if ($matches[1] === 'literal')
|
|
return '\'' . mysqli_real_escape_string($connection, $matches[2]) . '\'';
|
|
|
|
if (!isset($values[$matches[2]]))
|
|
smf_db_error_backtrace('The database value you\'re trying to insert does not exist: ' . (isset($smcFunc['htmlspecialchars']) ? $smcFunc['htmlspecialchars']($matches[2]) : 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\'', mysqli_real_escape_string($connection, $replacement));
|
|
break;
|
|
|
|
case 'array_int':
|
|
if (is_array($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$s\'', mysqli_real_escape_string($connection, $value));
|
|
|
|
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. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
|
|
break;
|
|
|
|
case 'time':
|
|
if (preg_match('~^([0-1]?\d|2[0-3]):([0-5]\d):([0-5]\d)$~', $replacement, $time_matches) === 1)
|
|
return sprintf('\'%02d:%02d:%02d\'', $time_matches[1], $time_matches[2], $time_matches[3]);
|
|
else
|
|
smf_db_error_backtrace('Wrong value type sent to the database. Time expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
|
|
break;
|
|
|
|
case 'datetime':
|
|
if (preg_match('~^(\d{4})-([0-1]?\d)-([0-3]?\d) ([0-1]?\d|2[0-3]):([0-5]\d):([0-5]\d)$~', $replacement, $datetime_matches) === 1)
|
|
return 'str_to_date(' .
|
|
sprintf('\'%04d-%02d-%02d %02d:%02d:%02d\'', $datetime_matches[1], $datetime_matches[2], $datetime_matches[3], $datetime_matches[4], $datetime_matches[5], $datetime_matches[6]) .
|
|
',\'%Y-%m-%d %h:%i:%s\')';
|
|
else
|
|
smf_db_error_backtrace('Wrong value type sent to the database. Datetime 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) $replacement;
|
|
break;
|
|
|
|
case 'identifier':
|
|
// Backticks inside identifiers are supported as of MySQL 4.1. We don't need them for SMF.
|
|
return '`' . implode('`.`', array_filter(explode('.', strtr($replacement, array('`' => ''))), 'strlen')) . '`';
|
|
break;
|
|
|
|
case 'raw':
|
|
return $replacement;
|
|
break;
|
|
|
|
case 'inet':
|
|
if ($replacement == 'null' || $replacement == '')
|
|
return 'null';
|
|
if (!isValidIP($replacement))
|
|
smf_db_error_backtrace('Wrong value type sent to the database. IPv4 or IPv6 expected.(' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
|
|
//we don't use the native support of mysql > 5.6.2
|
|
return sprintf('unhex(\'%1$s\')', bin2hex(inet_pton($replacement)));
|
|
|
|
case 'array_inet':
|
|
if (is_array($replacement))
|
|
{
|
|
if (empty($replacement))
|
|
smf_db_error_backtrace('Database error, given array of IPv4 or IPv6 values is empty. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
|
|
|
|
foreach ($replacement as $key => $value)
|
|
{
|
|
if ($replacement == 'null' || $replacement == '')
|
|
$replacement[$key] = 'null';
|
|
if (!isValidIP($value))
|
|
smf_db_error_backtrace('Wrong value type sent to the database. IPv4 or IPv6 expected.(' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
|
|
$replacement[$key] = sprintf('unhex(\'%1$s\')', bin2hex(inet_pton($value)));
|
|
}
|
|
|
|
return implode(', ', $replacement);
|
|
}
|
|
else
|
|
smf_db_error_backtrace('Wrong value type sent to the database. Array of IPv4 or IPv6 expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
|
|
break;
|
|
|
|
default:
|
|
smf_db_error_backtrace('Undefined type used in the database query. (' . $matches[1] . ':' . $matches[2] . ')', '', false, __FILE__, __LINE__);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Just like the db_query, escape and quote a string, but not executing the query.
|
|
*
|
|
* @param string $db_string The database string
|
|
* @param array $db_values An array of values to be injected into the string
|
|
* @param resource $connection = null The connection to use (null to use $db_connection)
|
|
* @return string The string with the values inserted
|
|
*/
|
|
function smf_db_quote($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.
|
|
*
|
|
* @param string $identifier An identifier. Only used in Postgres when we need to do things differently...
|
|
* @param string $db_string The database string
|
|
* @param array $db_values = array() The values to be inserted into the string
|
|
* @param resource $connection = null The connection to use (null to use $db_connection)
|
|
* @return resource|bool Returns a MySQL result resource (for SELECT queries), true (for UPDATE queries) or false if the query failed
|
|
*/
|
|
function smf_db_query($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 : $db_count + 1;
|
|
|
|
if (empty($modSettings['disableQueryCheck']) && strpos($db_string, '\'') !== false && empty($db_values['security_override']))
|
|
smf_db_error_backtrace('No direct access...', 'Illegal character (\') used in query...', true, __FILE__, __LINE__);
|
|
|
|
// Use "ORDER BY null" to prevent Mysql doing filesorts for Group By clauses without an Order By
|
|
if (strpos($db_string, 'GROUP BY') !== false && strpos($db_string, 'ORDER BY') === false && preg_match('~^\s+SELECT~i', $db_string))
|
|
{
|
|
// Add before LIMIT
|
|
if ($pos = strpos($db_string, 'LIMIT '))
|
|
$db_string = substr($db_string, 0, $pos) . "\t\t\tORDER BY null\n" . substr($db_string, $pos, strlen($db_string));
|
|
else
|
|
// Append it.
|
|
$db_string .= "\n\t\t\tORDER BY null";
|
|
}
|
|
|
|
if (empty($db_values['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.
|
|
$db_callback = array();
|
|
}
|
|
|
|
// First, we clean strings out of the query, reduce whitespace, lowercase, and trim - so we can check it over.
|
|
if (empty($modSettings['disableQueryCheck']))
|
|
{
|
|
$clean = '';
|
|
$old_pos = 0;
|
|
$pos = -1;
|
|
// Remove the string escape for better runtime
|
|
$db_string_1 = str_replace('\\\'', '', $db_string);
|
|
while (true)
|
|
{
|
|
$pos = strpos($db_string_1, '\'', $pos + 1);
|
|
if ($pos === false)
|
|
break;
|
|
$clean .= substr($db_string_1, $old_pos, $pos - $old_pos);
|
|
|
|
while (true)
|
|
{
|
|
$pos1 = strpos($db_string_1, '\'', $pos + 1);
|
|
$pos2 = strpos($db_string_1, '\\', $pos + 1);
|
|
if ($pos1 === false)
|
|
break;
|
|
elseif ($pos2 === false || $pos2 > $pos1)
|
|
{
|
|
$pos = $pos1;
|
|
break;
|
|
}
|
|
|
|
$pos = $pos2 + 1;
|
|
}
|
|
$clean .= ' %s ';
|
|
|
|
$old_pos = $pos + 1;
|
|
}
|
|
$clean .= substr($db_string_1, $old_pos);
|
|
$clean = trim(strtolower(preg_replace($allowed_comments_from, $allowed_comments_to, $clean)));
|
|
|
|
// Comments? We don't use comments in our queries, we leave 'em outside!
|
|
if (strpos($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)
|
|
$fail = true;
|
|
|
|
if (!empty($fail) && function_exists('log_error'))
|
|
smf_db_error_backtrace('No direct access...', 'No direct access...' . "\n" . $db_string, E_USER_ERROR, __FILE__, __LINE__);
|
|
}
|
|
|
|
// Debugging.
|
|
if (isset($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;
|
|
$db_cache[$db_count]['s'] = ($st = microtime(true)) - TIME_START;
|
|
}
|
|
|
|
if (empty($db_unbuffered))
|
|
$ret = @mysqli_query($connection, $db_string);
|
|
else
|
|
$ret = @mysqli_query($connection, $db_string, MYSQLI_USE_RESULT);
|
|
|
|
if ($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'] = microtime(true) - $st;
|
|
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* affected_rows
|
|
*
|
|
* @param resource $connection A connection to use (if null, $db_connection is used)
|
|
* @return int The number of rows affected by the last query
|
|
*/
|
|
function smf_db_affected_rows($connection = null)
|
|
{
|
|
global $db_connection;
|
|
|
|
return mysqli_affected_rows($connection === null ? $db_connection : $connection);
|
|
}
|
|
|
|
/**
|
|
* Gets the ID of the most recently inserted row.
|
|
*
|
|
* @param string $table The table (only used for Postgres)
|
|
* @param string $field = null The specific field (not used here)
|
|
* @param resource $connection = null The connection (if null, $db_connection is used)
|
|
* @return int The ID of the most recently inserted row
|
|
*/
|
|
function smf_db_insert_id($table, $field = null, $connection = null)
|
|
{
|
|
global $db_connection;
|
|
|
|
// MySQL doesn't need the table or field information.
|
|
return mysqli_insert_id($connection === null ? $db_connection : $connection);
|
|
}
|
|
|
|
/**
|
|
* Do a transaction.
|
|
*
|
|
* @param string $type The step to perform (i.e. 'begin', 'commit', 'rollback')
|
|
* @param resource $connection The connection to use (if null, $db_connection is used)
|
|
* @return bool True if successful, false otherwise
|
|
*/
|
|
function smf_db_transaction($type = 'commit', $connection = null)
|
|
{
|
|
global $db_connection;
|
|
|
|
// Decide which connection to use
|
|
$connection = $connection === null ? $db_connection : $connection;
|
|
|
|
if ($type == 'begin')
|
|
return @mysqli_query($connection, 'BEGIN');
|
|
elseif ($type == 'rollback')
|
|
return @mysqli_query($connection, 'ROLLBACK');
|
|
elseif ($type == 'commit')
|
|
return @mysqli_query($connection, 'COMMIT');
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Database error!
|
|
* Backtrace, log, try to fix.
|
|
*
|
|
* @param string $db_string The DB string
|
|
* @param object $connection The connection to use (if null, $db_connection is used)
|
|
*/
|
|
function smf_db_error($db_string, $connection = null)
|
|
{
|
|
global $txt, $context, $sourcedir, $webmaster_email, $modSettings;
|
|
global $db_connection, $db_last_error, $db_persist, $cache_enable;
|
|
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...
|
|
$query_error = mysqli_error($connection);
|
|
$query_errno = mysqli_errno($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.
|
|
|
|
// 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.
|
|
$old_cache = @$cache_enable;
|
|
$cache_enable = '1';
|
|
|
|
if (($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'], null, 'dberror');
|
|
|
|
$cache_enable = $old_cache;
|
|
|
|
// Try the query again...?
|
|
$ret = $smcFunc['db_query']('', $db_string, false, false);
|
|
if ($ret !== false)
|
|
return $ret;
|
|
}
|
|
else
|
|
$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)))
|
|
{
|
|
if ($db_connection)
|
|
{
|
|
// Try a deadlock more than once more.
|
|
for ($n = 0; $n < 4; $n++)
|
|
{
|
|
$ret = $smcFunc['db_query']('', $db_string, false, false);
|
|
|
|
$new_errno = mysqli_errno($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'] = $txt['try_again'];
|
|
|
|
if (allowedTo('admin_forum') && isset($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);
|
|
}
|
|
|
|
/**
|
|
* Inserts data into a table
|
|
*
|
|
* @param string $method The insert method - can be 'replace', 'ignore' or 'insert'
|
|
* @param string $table The table we're inserting the data into
|
|
* @param array $columns An array of the columns we're inserting the data into. Should contain 'column' => 'datatype' pairs
|
|
* @param array $data The data to insert
|
|
* @param array $keys The keys for the table, needs to be not empty on replace mode
|
|
* @param int returnmode 0 = nothing(default), 1 = last row id, 2 = all rows id as array
|
|
* @param object $connection The connection to use (if null, $db_connection is used)
|
|
* @return mixed value of the first key, behavior based on returnmode. null if no data.
|
|
*/
|
|
function smf_db_insert($method, $table, $columns, $data, $keys, $returnmode = 0, $connection = null)
|
|
{
|
|
global $smcFunc, $db_connection, $db_prefix;
|
|
|
|
$connection = $connection === null ? $db_connection : $connection;
|
|
|
|
$return_var = null;
|
|
|
|
// With nothing to insert, simply return.
|
|
if (empty($table) || empty($data))
|
|
return;
|
|
|
|
// Force method to lower case
|
|
$method = strtolower($method);
|
|
|
|
// Replace the prefix holder with the actual prefix.
|
|
$table = str_replace('{db_prefix}', $db_prefix, $table);
|
|
|
|
$with_returning = false;
|
|
|
|
if (!empty($keys) && (count($keys) > 0) && $returnmode > 0)
|
|
{
|
|
$with_returning = true;
|
|
if ($returnmode == 2)
|
|
$return_var = array();
|
|
}
|
|
|
|
// Inserting data as a single row can be done as a single array.
|
|
if (!is_array($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');
|
|
|
|
// Sanity check for replace is key part of the columns array
|
|
if ($method == 'replace')
|
|
{
|
|
if (empty($keys))
|
|
smf_db_error_backtrace('When using the replace mode, the key column is a required entry.',
|
|
'Change the method of db insert to insert or add the pk field to the key array', E_USER_ERROR, __FILE__, __LINE__);
|
|
if (count(array_intersect_key($columns, array_flip($keys))) !== count($keys))
|
|
smf_db_error_backtrace('Primary Key field missing in insert call',
|
|
'Change the method of db insert to insert or add the pk field to the columns array', E_USER_ERROR, __FILE__, __LINE__);
|
|
}
|
|
|
|
if (!$with_returning || $method != 'ignore')
|
|
{
|
|
// Do the insert.
|
|
$smcFunc['db_query']('', '
|
|
' . $queryTitle . ' INTO ' . $table . '(`' . implode('`, `', $indexed_columns) . '`)
|
|
VALUES
|
|
' . implode(',
|
|
', $insertRows),
|
|
array(
|
|
'security_override' => true,
|
|
'db_error_skip' => $table === $db_prefix . 'log_errors',
|
|
),
|
|
$connection
|
|
);
|
|
}
|
|
// Special way for ignore method with returning
|
|
else
|
|
{
|
|
$count = count($insertRows);
|
|
$ai = 0;
|
|
for ($i = 0; $i < $count; $i++)
|
|
{
|
|
$old_id = $smcFunc['db_insert_id']($table);
|
|
|
|
$smcFunc['db_query']('', '
|
|
' . $queryTitle . ' INTO ' . $table . '(`' . implode('`, `', $indexed_columns) . '`)
|
|
VALUES
|
|
' . $insertRows[$i],
|
|
array(
|
|
'security_override' => true,
|
|
'db_error_skip' => $table === $db_prefix . 'log_errors',
|
|
),
|
|
$connection
|
|
);
|
|
$new_id = $smcFunc['db_insert_id']($table);
|
|
|
|
// the inserted value was new
|
|
if ($old_id != $new_id)
|
|
{
|
|
$ai = $new_id;
|
|
}
|
|
// the inserted value already exists we need to find the pk
|
|
else
|
|
{
|
|
$where_string = '';
|
|
$count2 = count($keys);
|
|
for ($x = 0; $x < $count2; $x++)
|
|
{
|
|
$keyPos = array_search($keys[$x], array_keys($columns));
|
|
$where_string .= $keys[$x] . ' = ' . $data[$i][$keyPos];
|
|
if (($x + 1) < $count2)
|
|
$where_string .= ' AND ';
|
|
}
|
|
|
|
$request = $smcFunc['db_query']('', '
|
|
SELECT `' . $keys[0] . '` FROM ' . $table . '
|
|
WHERE ' . $where_string . ' LIMIT 1',
|
|
array()
|
|
);
|
|
|
|
if ($request !== false && $smcFunc['db_num_rows']($request) == 1)
|
|
{
|
|
$row = $smcFunc['db_fetch_assoc']($request);
|
|
$ai = $row[$keys[0]];
|
|
}
|
|
}
|
|
|
|
if ($returnmode == 1)
|
|
$return_var = $ai;
|
|
elseif ($returnmode == 2)
|
|
$return_var[] = $ai;
|
|
}
|
|
}
|
|
|
|
if ($with_returning)
|
|
{
|
|
if ($returnmode == 1 && empty($return_var))
|
|
$return_var = smf_db_insert_id($table, $keys[0]) + count($insertRows) - 1;
|
|
elseif ($returnmode == 2 && empty($return_var))
|
|
{
|
|
$return_var = array();
|
|
$count = count($insertRows);
|
|
$start = smf_db_insert_id($table, $keys[0]);
|
|
for ($i = 0; $i < $count; $i++)
|
|
$return_var[] = $start + $i;
|
|
}
|
|
return $return_var;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This function tries to work out additional error information from a back trace.
|
|
*
|
|
* @param string $error_message The error message
|
|
* @param string $log_message The message to log
|
|
* @param string|bool $error_type What type of error this is
|
|
* @param string $file The file the error occurred in
|
|
* @param int $line What line of $file the code which generated the error is on
|
|
* @return void|array Returns an array with the file and line if $error_type is 'return'
|
|
*/
|
|
function smf_db_error_backtrace($error_message, $log_message = '', $error_type = false, $file = null, $line = null)
|
|
{
|
|
if (empty($log_message))
|
|
$log_message = $error_message;
|
|
|
|
foreach (debug_backtrace() as $step)
|
|
{
|
|
// Found it?
|
|
if (strpos($step['function'], 'query') === false && !in_array(substr($step['function'], 0, 7), array('smf_db_', 'preg_re', 'db_erro', 'call_us')) && strpos($step['function'], '__') !== 0)
|
|
{
|
|
$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 . ($line !== null ? '<em>(' . basename($file) . '-' . $line . ')</em>' : ''), $error_type);
|
|
else
|
|
trigger_error($error_message . ($line !== null ? '<em>(' . basename($file) . '-' . $line . ')</em>' : ''));
|
|
}
|
|
|
|
/**
|
|
* Escape the LIKE wildcards so that they match the character and not the wildcard.
|
|
*
|
|
* @param string $string The string to escape
|
|
* @param bool $translate_human_wildcards If true, turns human readable wildcards into SQL wildcards.
|
|
* @return string The escaped string
|
|
*/
|
|
function smf_db_escape_wildcard_string($string, $translate_human_wildcards = false)
|
|
{
|
|
$replacements = array(
|
|
'%' => '\%',
|
|
'_' => '\_',
|
|
'\\' => '\\\\',
|
|
);
|
|
|
|
if ($translate_human_wildcards)
|
|
$replacements += array(
|
|
'*' => '%',
|
|
);
|
|
|
|
return strtr($string, $replacements);
|
|
}
|
|
|
|
/**
|
|
* Validates whether the resource is a valid mysqli instance.
|
|
* Mysqli uses objects rather than resource. https://bugs.php.net/bug.php?id=42797
|
|
*
|
|
* @param mixed $result The string to test
|
|
* @return bool True if it is, false otherwise
|
|
*/
|
|
function smf_is_resource($result)
|
|
{
|
|
if ($result instanceof mysqli_result)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Fetches all rows from a result as an array
|
|
*
|
|
* @param resource $request A MySQL result resource
|
|
* @return array An array that contains all rows (records) in the result resource
|
|
*/
|
|
function smf_db_fetch_all($request)
|
|
{
|
|
// Return the right row.
|
|
if (function_exists('mysqli_fetch_all'))
|
|
$return = mysqli_fetch_all($request, MYSQLI_ASSOC);
|
|
else
|
|
{
|
|
$return = array();
|
|
while($row = mysqli_fetch_assoc($request))
|
|
$return[] = $row;
|
|
}
|
|
return !empty($return) ? $return : array();
|
|
}
|
|
|
|
/**
|
|
* Function to save errors in database in a safe way
|
|
*
|
|
* @param array with keys in this order id_member, log_time, ip, url, message, session, error_type, file, line
|
|
* @return void
|
|
*/
|
|
function smf_db_error_insert($error_array)
|
|
{
|
|
global $db_prefix, $db_connection;
|
|
static $mysql_error_data_prep;
|
|
|
|
// without database we can't do anything
|
|
if (empty($db_connection))
|
|
return;
|
|
|
|
if (empty($mysql_error_data_prep))
|
|
$mysql_error_data_prep = mysqli_prepare($db_connection,
|
|
'INSERT INTO ' . $db_prefix . 'log_errors
|
|
(id_member, log_time, ip, url, message, session, error_type, file, line, backtrace)
|
|
VALUES( ?, ?, unhex(?), ?, ?, ?, ?, ?, ?, ?)'
|
|
);
|
|
|
|
if (filter_var($error_array[2], FILTER_VALIDATE_IP) !== false)
|
|
$error_array[2] = bin2hex(inet_pton($error_array[2]));
|
|
else
|
|
$error_array[2] = null;
|
|
mysqli_stmt_bind_param($mysql_error_data_prep, 'iissssssis',
|
|
$error_array[0], $error_array[1], $error_array[2], $error_array[3], $error_array[4], $error_array[5], $error_array[6],
|
|
$error_array[7], $error_array[8], $error_array[9]);
|
|
mysqli_stmt_execute($mysql_error_data_prep);
|
|
}
|
|
|
|
/**
|
|
* Function which constructs an optimize custom order string
|
|
* as an improved alternative to find_in_set()
|
|
*
|
|
* @param string $field name
|
|
* @param array $array_values Field values sequenced in array via order priority. Must cast to int.
|
|
* @param boolean $desc default false
|
|
* @return string case field when ... then ... end
|
|
*/
|
|
function smf_db_custom_order($field, $array_values, $desc = false)
|
|
{
|
|
$return = 'CASE ' . $field . ' ';
|
|
$count = count($array_values);
|
|
$then = ($desc ? ' THEN -' : ' THEN ');
|
|
|
|
for ($i = 0; $i < $count; $i++)
|
|
$return .= 'WHEN ' . (int) $array_values[$i] . $then . $i . ' ';
|
|
|
|
$return .= 'END';
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Function which return the information if the database supports native replace inserts
|
|
*
|
|
* @return boolean true or false
|
|
*/
|
|
function smf_db_native_replace()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Function which return the information if the database supports cte with recursive
|
|
*
|
|
* @return boolean true or false
|
|
*/
|
|
function smf_db_cte_support()
|
|
{
|
|
global $smcFunc;
|
|
static $return;
|
|
|
|
if (isset($return))
|
|
return $return;
|
|
|
|
db_extend('extra');
|
|
|
|
$version = $smcFunc['db_get_version']();
|
|
|
|
if (strpos(strtolower($version), 'mariadb') !== false)
|
|
$return = version_compare($version, '10.2.2', '>=');
|
|
else //mysql
|
|
$return = version_compare($version, '8.0.1', '>=');
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Function which return the escaped string
|
|
*
|
|
* @param string the unescaped text
|
|
* @param resource $connection = null The connection to use (null to use $db_connection)
|
|
* @return string escaped string
|
|
*/
|
|
function smf_db_escape_string($string, $connection = null)
|
|
{
|
|
global $db_connection;
|
|
|
|
return mysqli_real_escape_string($connection === null ? $db_connection : $connection, $string);
|
|
}
|
|
|
|
?>
|