757 lines
23 KiB
PHP
757 lines
23 KiB
PHP
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<?php
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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 http://www.simplemachines.org
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* @copyright 2011 Simple Machines
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* @license http://www.simplemachines.org/about/smf/license.php BSD
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*
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* @version 2.0.4
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*/
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if (!defined('SMF'))
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die('Hacking attempt...');
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/* This file has all the main functions in it that relate to the database.
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smf_db_initiate() maps the implementations in this file (smf_db_function_name)
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to the $smcFunc['db_function_name'] variable.
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*/
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// Initialize the database settings
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function smf_db_initiate($db_server, $db_name, $db_user, $db_passwd, &$db_prefix, $db_options = array())
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{
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global $smcFunc, $mysql_set_mode;
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// Map some database specific functions, only do this once.
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if (!isset($smcFunc['db_fetch_assoc']) || $smcFunc['db_fetch_assoc'] != 'postg_fetch_assoc')
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$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' => 'smf_db_fetch_assoc',
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'db_fetch_row' => 'smf_db_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' => 'smf_db_data_seek',
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'db_num_fields' => 'pg_num_fields',
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'db_escape_string' => 'pg_escape_string',
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'db_unescape_string' => 'smf_db_unescape_string',
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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' => 'PostgreSQL',
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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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);
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if (!empty($db_options['persist']))
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$connection = @pg_pconnect('host=' . $db_server . ' dbname=' . $db_name . ' user=\'' . $db_user . '\' password=\'' . $db_passwd . '\'');
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else
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$connection = @pg_connect( 'host=' . $db_server . ' dbname=' . $db_name . ' user=\'' . $db_user . '\' password=\'' . $db_passwd . '\'');
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// Something's wrong, show an error if its fatal (which we assume it is)
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if (!$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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db_fatal_error();
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}
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}
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return $connection;
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}
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// Extend the database functionality.
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function db_extend ($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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// Do nothing on postgreSQL
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function db_fix_prefix (&$db_prefix, $db_name)
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{
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return;
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}
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function smf_db_replacement__callback($matches)
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{
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global $db_callback, $user_info, $db_prefix;
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list ($values, $connection) = $db_callback;
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if (!is_resource($connection))
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db_fatal_error();
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if ($matches[1] === 'db_prefix')
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return $db_prefix;
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if ($matches[1] === 'query_see_board')
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return $user_info['query_see_board'];
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if ($matches[1] === 'query_wanna_see_board')
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return $user_info['query_wanna_see_board'];
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if (!isset($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 (!isset($values[$matches[2]]))
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smf_db_error_backtrace('The database value you\'re trying to insert does not exist: ' . 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($replacement));
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break;
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case 'array_int':
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if (is_array($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($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]);
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else
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smf_db_error_backtrace('Wrong value type sent to the database. Date expected. (' . $matches[2] . ')', '', E_USER_ERROR, __FILE__, __LINE__);
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break;
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case 'float':
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if (!is_numeric($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) $replacement;
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break;
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case 'identifier':
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return '`' . strtr($replacement, array('`' => '', '.' => '')) . '`';
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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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default:
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smf_db_error_backtrace('Undefined type used in the database query. (' . $matches[1] . ':' . $matches[2] . ')', '', false, __FILE__, __LINE__);
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break;
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}
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}
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// Just like the db_query, escape and quote a string, but not executing the query.
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function smf_db_quote($db_string, $db_values, $connection = null)
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{
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global $db_callback, $db_connection;
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// Only bother if there's something to replace.
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if (strpos($db_string, '{') !== false)
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{
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// This is needed by the callback function.
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$db_callback = array($db_values, $connection == null ? $db_connection : $connection);
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// Do the quoting and escaping
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$db_string = preg_replace_callback('~{([a-z_]+)(?::([a-zA-Z0-9_-]+))?}~', 'smf_db_replacement__callback', $db_string);
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// Clear this global variable.
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$db_callback = array();
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}
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return $db_string;
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}
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// Do a query. Takes care of errors too.
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function smf_db_query($identifier, $db_string, $db_values = array(), $connection = null)
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{
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global $db_cache, $db_count, $db_connection, $db_show_debug, $time_start;
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global $db_unbuffered, $db_callback, $db_last_result, $db_replace_result, $modSettings;
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// Decide which connection to use.
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$connection = $connection == null ? $db_connection : $connection;
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// Special queries that need processing.
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$replacements = array(
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'alter_table_boards' => array(
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'~(.+)~' => '',
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),
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'alter_table_icons' => array(
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'~(.+)~' => '',
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),
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'alter_table_smileys' => array(
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'~(.+)~' => '',
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),
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'alter_table_spiders' => array(
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'~(.+)~' => '',
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),
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'ban_suggest_error_ips' => array(
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'~RLIKE~' => '~',
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'~\\.~' => '\.',
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),
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'ban_suggest_message_ips' => array(
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'~RLIKE~' => '~',
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'~\\.~' => '\.',
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),
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'consolidate_spider_stats' => array(
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'~MONTH\(log_time\), DAYOFMONTH\(log_time\)~' => 'MONTH(CAST(CAST(log_time AS abstime) AS timestamp)), DAYOFMONTH(CAST(CAST(log_time AS abstime) AS timestamp))',
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),
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'delete_subscription' => array(
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'~LIMIT 1~' => '',
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),
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'display_get_post_poster' => array(
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'~GROUP BY id_msg\s+HAVING~' => 'AND',
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),
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'attach_download_increase' => array(
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'~LOW_PRIORITY~' => '',
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),
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'boardindex_fetch_boards' => array(
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'~IFNULL\(lb.id_msg, 0\) >= b.id_msg_updated~' => 'CASE WHEN IFNULL(lb.id_msg, 0) >= b.id_msg_updated THEN 1 ELSE 0 END',
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'~(.)$~' => '$1 ORDER BY b.board_order',
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),
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'get_random_number' => array(
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'~RAND~' => 'RANDOM',
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),
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'insert_log_search_topics' => array(
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'~NOT RLIKE~' => '!~',
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),
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'insert_log_search_results_no_index' => array(
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'~NOT RLIKE~' => '!~',
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),
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'insert_log_search_results_subject' => array(
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'~NOT RLIKE~' => '!~',
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),
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'messageindex_fetch_boards' => array(
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'~(.)$~' => '$1 ORDER BY b.board_order',
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),
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'select_message_icons' => array(
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'~(.)$~' => '$1 ORDER BY icon_order',
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),
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'set_character_set' => array(
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'~SET\\s+NAMES\\s([a-zA-Z0-9\\-_]+)~' => 'SET NAMES \'$1\'',
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),
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'pm_conversation_list' => array(
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'~ORDER\\s+BY\\s+\\{raw:sort\\}~' => 'ORDER BY ' . (isset($db_values['sort']) ? ($db_values['sort'] === 'pm.id_pm' ? 'MAX(pm.id_pm)' : $db_values['sort']) : ''),
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),
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'top_topic_starters' => array(
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'~ORDER BY FIND_IN_SET\(id_member,(.+?)\)~' => 'ORDER BY STRPOS(\',\' || $1 || \',\', \',\' || id_member|| \',\')',
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),
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'order_by_board_order' => array(
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'~(.)$~' => '$1 ORDER BY b.board_order',
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),
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'spider_check' => array(
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'~(.)$~' => '$1 ORDER BY LENGTH(user_agent) DESC',
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),
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'unread_replies' => array(
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'~SELECT\\s+DISTINCT\\s+t.id_topic~' => 'SELECT t.id_topic, {raw:sort}',
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),
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'profile_board_stats' => array(
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'~COUNT\(\*\) \/ MAX\(b.num_posts\)~' => 'CAST(COUNT(*) AS DECIMAL) / CAST(b.num_posts AS DECIMAL)',
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),
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'set_smiley_order' => array(
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'~(.+)~' => '',
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),
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);
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if (isset($replacements[$identifier]))
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$db_string = preg_replace(array_keys($replacements[$identifier]), array_values($replacements[$identifier]), $db_string);
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// Limits need to be a little different.
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$db_string = preg_replace('~\sLIMIT\s(\d+|{int:.+}),\s*(\d+|{int:.+})\s*$~i', 'LIMIT $2 OFFSET $1', $db_string);
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if (trim($db_string) == '')
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return false;
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// Comments that are allowed in a query are preg_removed.
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static $allowed_comments_from = array(
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'~\s+~s',
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'~/\*!40001 SQL_NO_CACHE \*/~',
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'~/\*!40000 USE INDEX \([A-Za-z\_]+?\) \*/~',
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'~/\*!40100 ON DUPLICATE KEY UPDATE id_msg = \d+ \*/~',
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);
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static $allowed_comments_to = array(
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' ',
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'',
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'',
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'',
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);
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// One more query....
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$db_count = !isset($db_count) ? 1 : $db_count + 1;
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$db_replace_result = 0;
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if (empty($modSettings['disableQueryCheck']) && strpos($db_string, '\'') !== false && empty($db_values['security_override']))
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smf_db_error_backtrace('Hacking attempt...', 'Illegal character (\') used in query...', true, __FILE__, __LINE__);
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|
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|
if (empty($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.
|
||
|
|
$db_callback = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Debugging.
|
||
|
|
if (isset($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();
|
||
|
|
}
|
||
|
|
|
||
|
|
$st = microtime();
|
||
|
|
// 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'] = array_sum(explode(' ', $st)) - array_sum(explode(' ', $time_start));
|
||
|
|
}
|
||
|
|
|
||
|
|
// First, we clean strings out of the query, reduce whitespace, lowercase, and trim - so we can check it over.
|
||
|
|
if (empty($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__);
|
||
|
|
}
|
||
|
|
|
||
|
|
$db_last_result = @pg_query($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'] = array_sum(explode(' ', microtime())) - array_sum(explode(' ', $st));
|
||
|
|
|
||
|
|
return $db_last_result;
|
||
|
|
}
|
||
|
|
|
||
|
|
function smf_db_affected_rows($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 : $result);
|
||
|
|
}
|
||
|
|
|
||
|
|
function smf_db_insert_id($table, $field = null, $connection = null)
|
||
|
|
{
|
||
|
|
global $db_connection, $smcFunc, $db_prefix;
|
||
|
|
|
||
|
|
$table = str_replace('{db_prefix}', $db_prefix, $table);
|
||
|
|
|
||
|
|
if ($connection === false)
|
||
|
|
$connection = $db_connection;
|
||
|
|
|
||
|
|
// 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 $lastID;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Do a transaction.
|
||
|
|
function smf_db_transaction($type = 'commit', $connection = null)
|
||
|
|
{
|
||
|
|
global $db_connection;
|
||
|
|
|
||
|
|
// Decide which connection to use
|
||
|
|
$connection = $connection == null ? $db_connection : $connection;
|
||
|
|
|
||
|
|
if ($type == 'begin')
|
||
|
|
return @pg_query($connection, 'BEGIN');
|
||
|
|
elseif ($type == 'rollback')
|
||
|
|
return @pg_query($connection, 'ROLLBACK');
|
||
|
|
elseif ($type == 'commit')
|
||
|
|
return @pg_query($connection, 'COMMIT');
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Database error!
|
||
|
|
function smf_db_error($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 $smcFunc;
|
||
|
|
|
||
|
|
// We'll try recovering the file and line number the original db query was called from.
|
||
|
|
list ($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'] = $txt['try_again'];
|
||
|
|
|
||
|
|
// A database error is often the sign of a database in need of updgrade. Check forum versions, and if not identical suggest an upgrade... (not for Demo/CVS versions!)
|
||
|
|
if (allowedTo('admin_forum') && !empty($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($context['error_message'], false);
|
||
|
|
}
|
||
|
|
|
||
|
|
// A PostgreSQL specific function for tracking the current row...
|
||
|
|
function smf_db_fetch_row($request, $counter = false)
|
||
|
|
{
|
||
|
|
global $db_row_count;
|
||
|
|
|
||
|
|
if ($counter !== false)
|
||
|
|
return pg_fetch_row($request, $counter);
|
||
|
|
|
||
|
|
// Reset the row counter...
|
||
|
|
if (!isset($db_row_count[(int) $request]))
|
||
|
|
$db_row_count[(int) $request] = 0;
|
||
|
|
|
||
|
|
// Return the right row.
|
||
|
|
return @pg_fetch_row($request, $db_row_count[(int) $request]++);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get an associative array
|
||
|
|
function smf_db_fetch_assoc($request, $counter = false)
|
||
|
|
{
|
||
|
|
global $db_row_count;
|
||
|
|
|
||
|
|
if ($counter !== false)
|
||
|
|
return pg_fetch_assoc($request, $counter);
|
||
|
|
|
||
|
|
// Reset the row counter...
|
||
|
|
if (!isset($db_row_count[(int) $request]))
|
||
|
|
$db_row_count[(int) $request] = 0;
|
||
|
|
|
||
|
|
// Return the right row.
|
||
|
|
return @pg_fetch_assoc($request, $db_row_count[(int) $request]++);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Reset the pointer...
|
||
|
|
function smf_db_data_seek($request, $counter)
|
||
|
|
{
|
||
|
|
global $db_row_count;
|
||
|
|
|
||
|
|
$db_row_count[(int) $request] = $counter;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Unescape an escaped string!
|
||
|
|
function smf_db_unescape_string($string)
|
||
|
|
{
|
||
|
|
return strtr($string, array('\'\'' => '\''));
|
||
|
|
}
|
||
|
|
|
||
|
|
// For inserting data in a special way...
|
||
|
|
function smf_db_insert($method = 'replace', $table, $columns, $data, $keys, $disable_trans = false, $connection = null)
|
||
|
|
{
|
||
|
|
global $db_replace_result, $db_in_transact, $smcFunc, $db_connection, $db_prefix;
|
||
|
|
|
||
|
|
$connection = $connection === null ? $db_connection : $connection;
|
||
|
|
|
||
|
|
if (empty($data))
|
||
|
|
return;
|
||
|
|
|
||
|
|
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);
|
||
|
|
|
||
|
|
$priv_trans = false;
|
||
|
|
if ((count($data) > 1 || $method == 'replace') && !$db_in_transact && !$disable_trans)
|
||
|
|
{
|
||
|
|
$smcFunc['db_transaction']('begin', $connection);
|
||
|
|
$priv_trans = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
// PostgreSQL doesn't support replace: we implement a MySQL-compatible behavior instead
|
||
|
|
if ($method == 'replace')
|
||
|
|
{
|
||
|
|
$count = 0;
|
||
|
|
$where = '';
|
||
|
|
foreach ($columns as $columnName => $type)
|
||
|
|
{
|
||
|
|
// Are we restricting the length?
|
||
|
|
if (strpos($type, 'string-') !== false)
|
||
|
|
$actualType = sprintf($columnName . ' = SUBSTRING({string:%1$s}, 1, ' . substr($type, 7) . '), ', $count);
|
||
|
|
else
|
||
|
|
$actualType = sprintf($columnName . ' = {%1$s:%2$s}, ', $type, $count);
|
||
|
|
|
||
|
|
// A key? That's what we were looking for.
|
||
|
|
if (in_array($columnName, $keys))
|
||
|
|
$where .= (empty($where) ? '' : ' AND ') . substr($actualType, 0, -2);
|
||
|
|
$count++;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make it so.
|
||
|
|
if (!empty($where) && !empty($data))
|
||
|
|
{
|
||
|
|
foreach ($data as $k => $entry)
|
||
|
|
{
|
||
|
|
$smcFunc['db_query']('', '
|
||
|
|
DELETE FROM ' . $table .
|
||
|
|
' WHERE ' . $where,
|
||
|
|
$entry, $connection
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($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), $connection);
|
||
|
|
|
||
|
|
foreach ($insertRows as $entry)
|
||
|
|
// Do the insert.
|
||
|
|
$smcFunc['db_query']('', '
|
||
|
|
INSERT INTO ' . $table . '("' . implode('", "', $indexed_columns) . '")
|
||
|
|
VALUES
|
||
|
|
' . $entry,
|
||
|
|
array(
|
||
|
|
'security_override' => true,
|
||
|
|
'db_error_skip' => $method == 'ignore' || $table === $db_prefix . 'log_errors',
|
||
|
|
),
|
||
|
|
$connection
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($priv_trans)
|
||
|
|
$smcFunc['db_transaction']('commit', $connection);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Dummy function really.
|
||
|
|
function smf_db_select_db($db_name, $db_connection)
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get the current version.
|
||
|
|
function smf_db_version()
|
||
|
|
{
|
||
|
|
$version = pg_version();
|
||
|
|
|
||
|
|
return $version['client'];
|
||
|
|
}
|
||
|
|
|
||
|
|
// This function tries to work out additional error information from a back trace.
|
||
|
|
function smf_db_error_backtrace($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($step['function'], 0, 7), array('smf_db_', 'preg_re', 'db_erro', 'call_us')) && substr($step['function'], 0, 2) != '__')
|
||
|
|
{
|
||
|
|
$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) . '-' . $line . ')</em>' : ''));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Escape the LIKE wildcards so that they match the character and not the wildcard.
|
||
|
|
// The optional second parameter turns human readable wildcards into SQL wildcards.
|
||
|
|
function smf_db_escape_wildcard_string($string, $translate_human_wildcards=false)
|
||
|
|
{
|
||
|
|
$replacements = array(
|
||
|
|
'%' => '\%',
|
||
|
|
'_' => '\_',
|
||
|
|
'\\' => '\\\\',
|
||
|
|
);
|
||
|
|
|
||
|
|
if ($translate_human_wildcards)
|
||
|
|
$replacements += array(
|
||
|
|
'*' => '%',
|
||
|
|
);
|
||
|
|
|
||
|
|
return strtr($string, $replacements);
|
||
|
|
}
|
||
|
|
|
||
|
|
?>
|