1036 lines
33 KiB
PHP
1036 lines
33 KiB
PHP
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<?php
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/**
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* This file has all the main functions in it that relate to the database.
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*
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* Simple Machines Forum (SMF)
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*
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* @package SMF
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* @author Simple Machines https://www.simplemachines.org
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* @copyright 2023 Simple Machines and individual contributors
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* @license https://www.simplemachines.org/about/smf/license.php BSD
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*
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* @version 2.1.4
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*/
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if (!defined('SMF'))
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die('No direct access...');
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/**
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* Maps the implementations in this file (smf_db_function_name)
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* to the $smcFunc['db_function_name'] variable.
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*
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* @see Subs-Db-mysql.php#smf_db_initiate
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*
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* @param string $db_server The database server
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* @param string $db_name The name of the database
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* @param string $db_user The database username
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* @param string $db_passwd The database password
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* @param string $db_prefix The table prefix
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* @param array $db_options An array of database options
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* @return null|resource Returns null on failure if $db_options['non_fatal'] is true or a PostgreSQL connection resource handle if the connection was successful.
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*/
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function smf_db_initiate($db_server, $db_name, $db_user, $db_passwd, &$db_prefix, $db_options = array())
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{
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global $smcFunc, $pg_connect_error, $pg_connect_errno;
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// Map some database specific functions, only do this once.
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if (!isset($smcFunc['db_fetch_assoc']))
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$smcFunc += array(
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'db_query' => 'smf_db_query',
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'db_quote' => 'smf_db_quote',
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'db_insert' => 'smf_db_insert',
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'db_insert_id' => 'smf_db_insert_id',
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'db_fetch_assoc' => 'pg_fetch_assoc',
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'db_fetch_row' => 'pg_fetch_row',
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'db_free_result' => 'pg_free_result',
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'db_num_rows' => 'pg_num_rows',
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'db_data_seek' => 'pg_result_seek',
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'db_num_fields' => 'pg_num_fields',
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'db_escape_string' => 'smf_db_escape_string',
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'db_unescape_string' => 'stripslashes',
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'db_server_info' => 'smf_db_version',
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'db_affected_rows' => 'smf_db_affected_rows',
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'db_transaction' => 'smf_db_transaction',
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'db_error' => 'pg_last_error',
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'db_select_db' => 'smf_db_select_db',
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'db_title' => POSTGRE_TITLE,
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'db_sybase' => true,
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'db_case_sensitive' => true,
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'db_escape_wildcard_string' => 'smf_db_escape_wildcard_string',
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'db_is_resource' => 'is_resource',
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'db_mb4' => true,
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'db_ping' => 'pg_ping',
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'db_fetch_all' => 'smf_db_fetch_all',
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'db_error_insert' => 'smf_db_error_insert',
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'db_custom_order' => 'smf_db_custom_order',
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'db_native_replace' => 'smf_db_native_replace',
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'db_cte_support' => 'smf_db_cte_support',
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'db_connect_error' => 'smf_db_connect_error',
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'db_connect_errno' => 'smf_db_connect_errno',
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);
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// We are not going to make it very far without these.
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if (!function_exists('pg_pconnect'))
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display_db_error();
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// We need to escape ' and \
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$db_passwd = str_replace(array('\\','\''), array('\\\\','\\\''), $db_passwd);
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// Since pg_connect doesn't feed error info to pg_last_error, we have to catch issues with a try/catch.
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set_error_handler(
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function($errno, $errstr)
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{
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throw new ErrorException($errstr, $errno);
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}
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);
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try
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{
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if (!empty($db_options['persist']))
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$connection = @pg_pconnect((empty($db_server) ? '' : 'host=' . $db_server . ' ') . 'dbname=' . $db_name . ' user=\'' . $db_user . '\' password=\'' . $db_passwd . '\'' . (empty($db_options['port']) ? '' : ' port=\'' . $db_options['port'] . '\''));
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else
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$connection = @pg_connect((empty($db_server) ? '' : 'host=' . $db_server . ' ') . 'dbname=' . $db_name . ' user=\'' . $db_user . '\' password=\'' . $db_passwd . '\'' . (empty($db_options['port']) ? '' : ' port=\'' . $db_options['port'] . '\''));
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}
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catch (Exception $e)
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{
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// Make error info available to calling processes
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$pg_connect_error = $e->getMessage();
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$pg_connect_errno = $e->getCode();
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$connection = false;
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}
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restore_error_handler();
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// Something's wrong, show an error if its fatal (which we assume it is)
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if (!$connection)
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{
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if (!empty($db_options['non_fatal']))
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{
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return null;
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}
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else
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{
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display_db_error();
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}
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}
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if (!empty($db_options['db_mb4']))
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$smcFunc['db_mb4'] = (bool) $db_options['db_mb4'];
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return $connection;
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}
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/**
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* Extend the database functionality. It calls the respective file's init
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* to add the implementations in that file to $smcFunc array.
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*
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* @param string $type Indicates which additional file to load. ('extra', 'packages')
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*/
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function db_extend($type = 'extra')
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{
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global $sourcedir, $db_type;
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require_once($sourcedir . '/Db' . strtoupper($type[0]) . substr($type, 1) . '-' . $db_type . '.php');
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$initFunc = 'db_' . $type . '_init';
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$initFunc();
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}
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/**
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* Fix the database prefix if necessary.
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* Does nothing on PostgreSQL
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*
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* @param string $db_prefix The database prefix
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* @param string $db_name The database name
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*/
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function db_fix_prefix(&$db_prefix, $db_name)
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{
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return;
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}
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/**
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* Callback for preg_replace_callback on the query.
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* It allows to replace on the fly a few pre-defined strings, for convenience ('query_see_board', 'query_wanna_see_board', etc), with
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* their current values from $user_info.
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* In addition, it performs checks and sanitization on the values sent to the database.
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*
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* @param array $matches The matches from preg_replace_callback
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* @return string The appropriate string depending on $matches[1]
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*/
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function smf_db_replacement__callback($matches)
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{
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global $db_callback, $user_info, $db_prefix, $smcFunc;
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list ($values, $connection) = $db_callback;
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if ($matches[1] === 'db_prefix')
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return $db_prefix;
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if (isset($user_info[$matches[1]]) && strpos($matches[1], 'query_') !== false)
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return $user_info[$matches[1]];
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if ($matches[1] === 'empty')
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return '\'\'';
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if (!isset($matches[2]))
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smf_db_error_backtrace('Invalid value inserted or no type specified.', '', E_USER_ERROR, __FILE__, __LINE__);
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if ($matches[1] === 'literal')
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return '\'' . pg_escape_string($connection, $matches[2]) . '\'';
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if (!isset($values[$matches[2]]))
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smf_db_error_backtrace('The database value you\'re trying to insert does not exist: ' . (isset($smcFunc['htmlspecialchars']) ? $smcFunc['htmlspecialchars']($matches[2]) : htmlspecialchars($matches[2])), '', E_USER_ERROR, __FILE__, __LINE__);
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$replacement = $values[$matches[2]];
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switch ($matches[1])
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{
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case 'int':
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if (!is_numeric($replacement) || (string) $replacement !== (string) (int) $replacement)
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smf_db_error_backtrace('Wrong value type sent to the database. Integer expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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return (string) (int) $replacement;
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break;
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case 'string':
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case 'text':
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return sprintf('\'%1$s\'', pg_escape_string($connection, $replacement));
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break;
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case 'array_int':
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if (is_array($replacement))
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{
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if (empty($replacement))
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smf_db_error_backtrace('Database error, given array of integer values is empty. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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foreach ($replacement as $key => $value)
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{
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if (!is_numeric($value) || (string) $value !== (string) (int) $value)
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smf_db_error_backtrace('Wrong value type sent to the database. Array of integers expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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$replacement[$key] = (string) (int) $value;
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}
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return implode(', ', $replacement);
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}
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else
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smf_db_error_backtrace('Wrong value type sent to the database. Array of integers expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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break;
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case 'array_string':
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if (is_array($replacement))
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{
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if (empty($replacement))
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smf_db_error_backtrace('Database error, given array of string values is empty. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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foreach ($replacement as $key => $value)
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$replacement[$key] = sprintf('\'%1$s\'', pg_escape_string($connection, $value));
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return implode(', ', $replacement);
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}
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else
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smf_db_error_backtrace('Wrong value type sent to the database. Array of strings expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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break;
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case 'date':
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if (preg_match('~^(\d{4})-([0-1]?\d)-([0-3]?\d)$~', $replacement, $date_matches) === 1)
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return sprintf('\'%04d-%02d-%02d\'', $date_matches[1], $date_matches[2], $date_matches[3]) . '::date';
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else
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smf_db_error_backtrace('Wrong value type sent to the database. Date expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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break;
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case 'time':
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if (preg_match('~^([0-1]?\d|2[0-3]):([0-5]\d):([0-5]\d)$~', $replacement, $time_matches) === 1)
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return sprintf('\'%02d:%02d:%02d\'', $time_matches[1], $time_matches[2], $time_matches[3]) . '::time';
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else
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smf_db_error_backtrace('Wrong value type sent to the database. Time expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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break;
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case 'datetime':
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if (preg_match('~^(\d{4})-([0-1]?\d)-([0-3]?\d) ([0-1]?\d|2[0-3]):([0-5]\d):([0-5]\d)$~', $replacement, $datetime_matches) === 1)
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return 'to_timestamp(' .
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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]) .
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',\'YYYY-MM-DD HH24:MI:SS\')';
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else
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smf_db_error_backtrace('Wrong value type sent to the database. Datetime expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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break;
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case 'float':
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if (!is_numeric($replacement))
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smf_db_error_backtrace('Wrong value type sent to the database. Floating point number expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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return (string) (float) $replacement;
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break;
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case 'identifier':
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return '"' . implode('"."', array_filter(explode('.', strtr($replacement, array('`' => ''))), 'strlen')) . '"';
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break;
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case 'raw':
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return $replacement;
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break;
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case 'inet':
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if ($replacement == 'null' || $replacement == '')
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return 'null';
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if (inet_pton($replacement) === false)
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smf_db_error_backtrace('Wrong value type sent to the database. IPv4 or IPv6 expected.(' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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return sprintf('\'%1$s\'::inet', pg_escape_string($connection, $replacement));
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case 'array_inet':
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if (is_array($replacement))
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{
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if (empty($replacement))
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smf_db_error_backtrace('Database error, given array of IPv4 or IPv6 values is empty. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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foreach ($replacement as $key => $value)
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{
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if ($replacement == 'null' || $replacement == '')
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$replacement[$key] = 'null';
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if (!isValidIP($value))
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smf_db_error_backtrace('Wrong value type sent to the database. IPv4 or IPv6 expected.(' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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$replacement[$key] = sprintf('\'%1$s\'::inet', pg_escape_string($connection, $value));
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}
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return implode(', ', $replacement);
|
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}
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else
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smf_db_error_backtrace('Wrong value type sent to the database. Array of IPv4 or IPv6 expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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break;
|
||
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||
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default:
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smf_db_error_backtrace('Undefined type used in the database query. (' . $matches[1] . ':' . $matches[2] . ')', '', false, __FILE__, __LINE__);
|
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break;
|
||
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}
|
||
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}
|
||
|
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|
||
|
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/**
|
||
|
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* Just like the db_query, escape and quote a string, but not executing the query.
|
||
|
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*
|
||
|
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* @param string $db_string The database string
|
||
|
|
* @param array $db_values An array of values to be injected into the string
|
||
|
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* @param resource $connection = null The connection to use (null to use $db_connection)
|
||
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* @return string The string with the values inserted
|
||
|
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*/
|
||
|
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function smf_db_quote($db_string, $db_values, $connection = null)
|
||
|
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{
|
||
|
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global $db_callback, $db_connection;
|
||
|
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|
||
|
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// Only bother if there's something to replace.
|
||
|
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if (strpos($db_string, '{') !== false)
|
||
|
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{
|
||
|
|
// This is needed by the callback function.
|
||
|
|
$db_callback = array($db_values, $connection === null ? $db_connection : $connection);
|
||
|
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|
||
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// Do the quoting and escaping
|
||
|
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$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.
|
||
|
|
* Special queries may need additional replacements to be appropriate
|
||
|
|
* for PostgreSQL.
|
||
|
|
*
|
||
|
|
* @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_callback, $db_last_result, $db_replace_result, $modSettings;
|
||
|
|
|
||
|
|
// Decide which connection to use.
|
||
|
|
$connection = $connection === null ? $db_connection : $connection;
|
||
|
|
|
||
|
|
// Special queries that need processing.
|
||
|
|
$replacements = array(
|
||
|
|
'profile_board_stats' => array(
|
||
|
|
'~COUNT\(\*\) \/ MAX\(b.num_posts\)~' => 'CAST(COUNT(*) AS DECIMAL) / CAST(b.num_posts AS DECIMAL)',
|
||
|
|
),
|
||
|
|
);
|
||
|
|
|
||
|
|
// Special optimizer Hints
|
||
|
|
$query_opt = array(
|
||
|
|
'load_board_info' => array(
|
||
|
|
'join_collapse_limit' => 1,
|
||
|
|
),
|
||
|
|
'calendar_get_events' => array(
|
||
|
|
'enable_seqscan' => 'off',
|
||
|
|
),
|
||
|
|
);
|
||
|
|
|
||
|
|
if (isset($replacements[$identifier]))
|
||
|
|
$db_string = preg_replace(array_keys($replacements[$identifier]), array_values($replacements[$identifier]), $db_string);
|
||
|
|
|
||
|
|
// Limits need to be a little different.
|
||
|
|
$db_string = preg_replace('~\sLIMIT\s(\d+|{int:.+}),\s*(\d+|{int:.+})\s*$~i', 'LIMIT $2 OFFSET $1', $db_string);
|
||
|
|
|
||
|
|
if (trim($db_string) == '')
|
||
|
|
return false;
|
||
|
|
|
||
|
|
// 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(
|
||
|
|
' ',
|
||
|
|
'',
|
||
|
|
'',
|
||
|
|
'',
|
||
|
|
);
|
||
|
|
|
||
|
|
// One more query....
|
||
|
|
$db_count = !isset($db_count) ? 1 : $db_count + 1;
|
||
|
|
$db_replace_result = 0;
|
||
|
|
|
||
|
|
if (empty($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__);
|
||
|
|
|
||
|
|
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" . $db_string, E_USER_ERROR, __FILE__, __LINE__);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set optimize stuff
|
||
|
|
if (isset($query_opt[$identifier]))
|
||
|
|
{
|
||
|
|
$query_hints = $query_opt[$identifier];
|
||
|
|
$query_hints_set = '';
|
||
|
|
if (isset($query_hints['join_collapse_limit']))
|
||
|
|
{
|
||
|
|
$query_hints_set .= 'SET LOCAL join_collapse_limit = ' . $query_hints['join_collapse_limit'] . ';';
|
||
|
|
}
|
||
|
|
if (isset($query_hints['enable_seqscan']))
|
||
|
|
{
|
||
|
|
$query_hints_set .= 'SET LOCAL enable_seqscan = ' . $query_hints['enable_seqscan'] . ';';
|
||
|
|
}
|
||
|
|
|
||
|
|
$db_string = $query_hints_set . $db_string;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Debugging.
|
||
|
|
if (isset($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;
|
||
|
|
}
|
||
|
|
|
||
|
|
$db_last_result = @pg_query($connection, $db_string);
|
||
|
|
|
||
|
|
if ($db_last_result === false && empty($db_values['db_error_skip']))
|
||
|
|
$db_last_result = smf_db_error($db_string, $connection);
|
||
|
|
|
||
|
|
// Debugging.
|
||
|
|
if (isset($db_show_debug) && $db_show_debug === true)
|
||
|
|
$db_cache[$db_count]['t'] = microtime(true) - $st;
|
||
|
|
|
||
|
|
return $db_last_result;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the amount of affected rows for a query.
|
||
|
|
*
|
||
|
|
* @param mixed $result
|
||
|
|
*
|
||
|
|
* @return int
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
function smf_db_affected_rows($result = null)
|
||
|
|
{
|
||
|
|
global $db_last_result, $db_replace_result;
|
||
|
|
|
||
|
|
if ($db_replace_result)
|
||
|
|
return $db_replace_result;
|
||
|
|
elseif ($result === null && !$db_last_result)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
return pg_affected_rows($result === null ? $db_last_result : $result);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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, $db_connection is used) (not used here)
|
||
|
|
* @return int The ID of the most recently inserted row
|
||
|
|
*/
|
||
|
|
function smf_db_insert_id($table, $field = null, $connection = null)
|
||
|
|
{
|
||
|
|
global $smcFunc, $db_prefix;
|
||
|
|
|
||
|
|
$table = str_replace('{db_prefix}', $db_prefix, $table);
|
||
|
|
|
||
|
|
// Try get the last ID for the auto increment field.
|
||
|
|
$request = $smcFunc['db_query']('', 'SELECT CURRVAL(\'' . $table . '_seq\') AS insertID',
|
||
|
|
array(
|
||
|
|
)
|
||
|
|
);
|
||
|
|
if (!$request)
|
||
|
|
return false;
|
||
|
|
list ($lastID) = $smcFunc['db_fetch_row']($request);
|
||
|
|
$smcFunc['db_free_result']($request);
|
||
|
|
|
||
|
|
return $lastID;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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, $inTransaction;
|
||
|
|
|
||
|
|
// Decide which connection to use
|
||
|
|
$connection = $connection === null ? $db_connection : $connection;
|
||
|
|
|
||
|
|
if ($type == 'begin')
|
||
|
|
{
|
||
|
|
$inTransaction = true;
|
||
|
|
return @pg_query($connection, 'BEGIN');
|
||
|
|
}
|
||
|
|
elseif ($type == 'rollback')
|
||
|
|
{
|
||
|
|
$inTransaction = false;
|
||
|
|
return @pg_query($connection, 'ROLLBACK');
|
||
|
|
}
|
||
|
|
elseif ($type == 'commit')
|
||
|
|
{
|
||
|
|
$inTransaction = false;
|
||
|
|
return @pg_query($connection, 'COMMIT');
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Database error!
|
||
|
|
* Backtrace, log, try to fix.
|
||
|
|
*
|
||
|
|
* @param string $db_string The DB string
|
||
|
|
* @param resource $connection The connection to use (if null, $db_connection is used)
|
||
|
|
*/
|
||
|
|
function smf_db_error($db_string, $connection = null)
|
||
|
|
{
|
||
|
|
global $txt, $context, $modSettings;
|
||
|
|
global $db_connection;
|
||
|
|
global $db_show_debug;
|
||
|
|
|
||
|
|
// We'll try recovering the file and line number the original db query was called from.
|
||
|
|
list ($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...
|
||
|
|
$query_error = @pg_last_error($connection);
|
||
|
|
|
||
|
|
// Log the error.
|
||
|
|
if (function_exists('log_error'))
|
||
|
|
log_error($txt['database_error'] . ': ' . $query_error . (!empty($modSettings['enableErrorQueryLogging']) ? "\n\n" . $db_string : ''), 'database', $file, $line);
|
||
|
|
|
||
|
|
// Nothing's defined yet... just die with it.
|
||
|
|
if (empty($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; every mode runs only with method != 'ignore'
|
||
|
|
* @param resource $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, $txt;
|
||
|
|
|
||
|
|
$connection = $connection === null ? $db_connection : $connection;
|
||
|
|
|
||
|
|
$replace = '';
|
||
|
|
|
||
|
|
if (empty($table) || empty($data))
|
||
|
|
return;
|
||
|
|
|
||
|
|
// Force method to lower case
|
||
|
|
$method = strtolower($method);
|
||
|
|
|
||
|
|
if (!is_array($data[array_rand($data)]))
|
||
|
|
$data = array($data);
|
||
|
|
|
||
|
|
// Replace the prefix holder with the actual prefix.
|
||
|
|
$table = str_replace('{db_prefix}', $db_prefix, $table);
|
||
|
|
|
||
|
|
// Sanity check for replace is key part of the columns array
|
||
|
|
if ($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__);
|
||
|
|
}
|
||
|
|
|
||
|
|
// PostgreSQL doesn't support replace: we implement a MySQL-compatible behavior instead
|
||
|
|
if ($method == 'replace' || $method == 'ignore')
|
||
|
|
{
|
||
|
|
$key_str = '';
|
||
|
|
$col_str = '';
|
||
|
|
|
||
|
|
$count = 0;
|
||
|
|
$count_pk = 0;
|
||
|
|
|
||
|
|
foreach ($columns as $columnName => $type)
|
||
|
|
{
|
||
|
|
//check pk fiel
|
||
|
|
IF (in_array($columnName, $keys))
|
||
|
|
{
|
||
|
|
$key_str .= ($count_pk > 0 ? ',' : '');
|
||
|
|
$key_str .= $columnName;
|
||
|
|
$count_pk++;
|
||
|
|
}
|
||
|
|
elseif ($method == 'replace') //normal field
|
||
|
|
{
|
||
|
|
$col_str .= ($count > 0 ? ',' : '');
|
||
|
|
$col_str .= $columnName . ' = EXCLUDED.' . $columnName;
|
||
|
|
$count++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($method == 'replace')
|
||
|
|
$replace = ' ON CONFLICT (' . $key_str . ') DO UPDATE SET ' . $col_str;
|
||
|
|
else
|
||
|
|
$replace = ' ON CONFLICT (' . $key_str . ') DO NOTHING';
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
$returning = '';
|
||
|
|
$with_returning = false;
|
||
|
|
// lets build the returning string, mysql allow only in normal mode
|
||
|
|
if (!empty($keys) && (count($keys) > 0) && $returnmode > 0)
|
||
|
|
{
|
||
|
|
// we only take the first key
|
||
|
|
$returning = ' RETURNING ' . $keys[0];
|
||
|
|
$with_returning = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($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);
|
||
|
|
|
||
|
|
// Do the insert.
|
||
|
|
$request = $smcFunc['db_query']('', '
|
||
|
|
INSERT INTO ' . $table . '("' . implode('", "', $indexed_columns) . '")
|
||
|
|
VALUES
|
||
|
|
' . implode(',
|
||
|
|
', $insertRows) . $replace . $returning,
|
||
|
|
array(
|
||
|
|
'security_override' => true,
|
||
|
|
'db_error_skip' => $method == 'ignore' || $table === $db_prefix . 'log_errors',
|
||
|
|
),
|
||
|
|
$connection
|
||
|
|
);
|
||
|
|
|
||
|
|
if ($with_returning && $request !== false)
|
||
|
|
{
|
||
|
|
if ($returnmode === 2)
|
||
|
|
$return_var = array();
|
||
|
|
|
||
|
|
while (($row = $smcFunc['db_fetch_row']($request)) && $with_returning)
|
||
|
|
{
|
||
|
|
if (is_numeric($row[0])) // try to emulate mysql limitation
|
||
|
|
{
|
||
|
|
if ($returnmode === 1)
|
||
|
|
$return_var = $row[0];
|
||
|
|
elseif ($returnmode === 2)
|
||
|
|
$return_var[] = $row[0];
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$with_returning = false;
|
||
|
|
loadLanguage('Errors');
|
||
|
|
trigger_error($txt['postgres_id_not_int'], E_USER_ERROR);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($with_returning && !empty($return_var))
|
||
|
|
return $return_var;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Dummy function really. Doesn't do anything on PostgreSQL.
|
||
|
|
*
|
||
|
|
* @param string $db_name The database name
|
||
|
|
* @param resource $db_connection The database connection
|
||
|
|
* @return true Always returns true
|
||
|
|
*/
|
||
|
|
function smf_db_select_db($db_name, $db_connection)
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the current version.
|
||
|
|
*
|
||
|
|
* @return string The client version
|
||
|
|
*/
|
||
|
|
function smf_db_version()
|
||
|
|
{
|
||
|
|
$version = pg_version();
|
||
|
|
|
||
|
|
return $version['client'];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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, $error_type);
|
||
|
|
|
||
|
|
// Cannot continue...
|
||
|
|
exit;
|
||
|
|
}
|
||
|
|
elseif ($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);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Fetches all rows from a result as an array
|
||
|
|
*
|
||
|
|
* @param resource $request A PostgreSQL result resource
|
||
|
|
* @return array An array that contains all rows (records) in the result resource
|
||
|
|
*/
|
||
|
|
function smf_db_fetch_all($request)
|
||
|
|
{
|
||
|
|
// Return the right row.
|
||
|
|
$return = @pg_fetch_all($request);
|
||
|
|
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, $db_persist, $smcFunc, $inTransaction;
|
||
|
|
static $pg_error_data_prep;
|
||
|
|
|
||
|
|
// without database we can't do anything
|
||
|
|
if (empty($db_connection))
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (filter_var($error_array[2], FILTER_VALIDATE_IP) === false)
|
||
|
|
$error_array[2] = null;
|
||
|
|
|
||
|
|
// If we are in a transaction, abort.
|
||
|
|
if (!empty($inTransaction))
|
||
|
|
smf_db_transaction('rollback');
|
||
|
|
|
||
|
|
if(empty($db_persist))
|
||
|
|
{ // without pooling
|
||
|
|
if (empty($pg_error_data_prep))
|
||
|
|
$pg_error_data_prep = pg_prepare($db_connection, 'smf_log_errors',
|
||
|
|
'INSERT INTO ' . $db_prefix . 'log_errors
|
||
|
|
(id_member, log_time, ip, url, message, session, error_type, file, line, backtrace)
|
||
|
|
VALUES( $1, $2, $3, $4, $5, $6, $7, $8, $9, $10)'
|
||
|
|
);
|
||
|
|
|
||
|
|
pg_execute($db_connection, 'smf_log_errors', $error_array);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{ //with pooling
|
||
|
|
$pg_error_data_prep = pg_prepare($db_connection, '',
|
||
|
|
'INSERT INTO ' . $db_prefix . 'log_errors
|
||
|
|
(id_member, log_time, ip, url, message, session, error_type, file, line, backtrace)
|
||
|
|
VALUES( $1, $2, $3, $4, $5, $6, $7, $8, $9, $10)'
|
||
|
|
);
|
||
|
|
|
||
|
|
pg_execute($db_connection, '', $error_array);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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()
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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 $db_connection;
|
||
|
|
|
||
|
|
return pg_escape_string($connection === null ? $db_connection : $connection, $string);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Function to return the pg connection error message.
|
||
|
|
* Emulating mysqli_connect_error.
|
||
|
|
* Since pg_connect() doesn't feed info to pg_last_error, we need to
|
||
|
|
* use a try/catch & preserve error info.
|
||
|
|
*
|
||
|
|
* @return string connection error message
|
||
|
|
*/
|
||
|
|
function smf_db_connect_error()
|
||
|
|
{
|
||
|
|
global $pg_connect_error;
|
||
|
|
|
||
|
|
if (empty($pg_connect_error))
|
||
|
|
$pg_connect_error = '';
|
||
|
|
|
||
|
|
return $pg_connect_error;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Function to return the pg connection error number.
|
||
|
|
* Emulating mysqli_connect_errno.
|
||
|
|
* Since pg_connect() doesn't feed info to pg_last_error, we need to
|
||
|
|
* use a try/catch & preserve error info.
|
||
|
|
*
|
||
|
|
* @return string connection error number
|
||
|
|
*/
|
||
|
|
function smf_db_connect_errno()
|
||
|
|
{
|
||
|
|
global $pg_connect_errno;
|
||
|
|
|
||
|
|
if (empty($pg_connect_errno))
|
||
|
|
$pg_connect_errno = '';
|
||
|
|
|
||
|
|
return $pg_connect_errno;
|
||
|
|
}
|
||
|
|
|
||
|
|
?>
|