<?php require_once('include/datetime.php'); $objDDDBLResultHandler = new \DDDBL\DataObjectPool('Result-Handler'); /** * create handler, which returns just the PDOStatement object * this allows usage of the cursor to scroll through * big result-sets * **/ $cloPDOStatementResultHandler = function(\DDDBL\Queue $objQueue) { $objPDO = $objQueue->getState()->get('PDOStatement'); $objQueue->getState()->update(array('result' => $objPDO)); # delete handler which closes the PDOStatement-cursor # this will be done manual if using this handler $objQueue->deleteHandler(QUEUE_CLOSE_CURSOR_POSITION); }; $objDDDBLResultHandler->add('PDOStatement', array('HANDLER' => $cloPDOStatementResultHandler)); /** * * MySQL database class * * For debugging, insert 'dbg(1);' anywhere in the program flow. * dbg(0); will turn it off. Logging is performed at LOGGER_DATA level. * When logging, all binary info is converted to text and html entities are escaped so that * the debugging stream is safe to view within both terminals and web pages. * */ if(! class_exists('dba')) { class dba { private $debug = 0; private $db; private $result; public $connected = false; public $error = false; function __construct($server,$user,$pass,$db,$install = false) { global $a; # work around, to store the database - configuration in DDDBL $objDataObjectPool = new \DDDBL\DataObjectPool('Database-Definition'); $objDataObjectPool->add('DEFAULT', array('CONNECTION' => "mysql:host=$server;dbname=$db", 'USER' => $user, 'PASS' => $pass, 'DEFAULT' => true)); $stamp1 = microtime(true); $server = trim($server); $user = trim($user); $pass = trim($pass); $db = trim($db); if (!(strlen($server) && strlen($user))){ $this->connected = false; $this->db = null; return; } if($install) { if(strlen($server) && ($server !== 'localhost') && ($server !== '127.0.0.1')) { if(! dns_get_record($server, DNS_A + DNS_CNAME + DNS_PTR)) { $this->error = sprintf( t('Cannot locate DNS info for database server \'%s\''), $server); $this->connected = false; $this->db = null; return; } } } # etablish connection to database and store PDO object \DDDBL\connect(); $this->db = \DDDBL\getDB(); if(\DDDBL\isConnected()) { $this->connected = true; } if(! $this->connected) { $this->db = null; if(! $install) system_unavailable(); } $a->save_timestamp($stamp1, "network"); } public function getdb() { return $this->db; } public function q($sql, $onlyquery = false) { global $a; $strHandler = (true === $onlyquery) ? 'PDOStatement' : 'MULTI'; $strQueryAlias = md5($sql); $strSQLType = strtoupper(strstr($sql, ' ', true)); $objPreparedQueryPool = new \DDDBL\DataObjectPool('Query-Definition'); # check if query do not exists till now, if so create its definition if(!$objPreparedQueryPool->exists($strQueryAlias)) $objPreparedQueryPool->add($strQueryAlias, array('QUERY' => $sql, 'HANDLER' => $strHandler)); if((! $this->db) || (! $this->connected)) return false; $this->error = ''; $stamp1 = microtime(true); try { $r = \DDDBL\get($strQueryAlias); # bad workaround to emulate the bizzare behavior of mysql_query if(in_array($strSQLType, array('INSERT', 'UPDATE', 'DELETE', 'CREATE', 'DROP', 'SET'))) $result = true; $intErrorCode = false; } catch (\Exception $objException) { $result = false; $intErrorCode = $objPreparedQueryPool->get($strQueryAlias)->get('PDOStatement')->errorCode(); } $stamp2 = microtime(true); $duration = (float)($stamp2-$stamp1); $a->save_timestamp($stamp1, "database"); if(x($a->config,'system') && x($a->config['system'],'db_log')) { if (($duration > $a->config["system"]["db_loglimit"])) { $duration = round($duration, 3); $backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS); @file_put_contents($a->config["system"]["db_log"], datetime_convert()."\t".$duration."\t". basename($backtrace[1]["file"])."\t". $backtrace[1]["line"]."\t".$backtrace[2]["function"]."\t". substr($sql, 0, 2000)."\n", FILE_APPEND); } } if($intErrorCode) $this->error = $intErrorCode; if(strlen($this->error)) { logger('dba: ' . $this->error); } if($this->debug) { $mesg = ''; if($result === false) $mesg = 'false'; elseif($result === true) $mesg = 'true'; else { # this needs fixing, but is a bug itself #$mesg = mysql_num_rows($result) . ' results' . EOL; } $str = 'SQL = ' . printable($sql) . EOL . 'SQL returned ' . $mesg . (($this->error) ? ' error: ' . $this->error : '') . EOL; logger('dba: ' . $str ); } /** * If dbfail.out exists, we will write any failed calls directly to it, * regardless of any logging that may or may nor be in effect. * These usually indicate SQL syntax errors that need to be resolved. */ if(isset($result) AND ($result === false)) { logger('dba: ' . printable($sql) . ' returned false.' . "\n" . $this->error); if(file_exists('dbfail.out')) file_put_contents('dbfail.out', datetime_convert() . "\n" . printable($sql) . ' returned false' . "\n" . $this->error . "\n", FILE_APPEND); } if(isset($result) AND (($result === true) || ($result === false))) return $result; if ($onlyquery) { $this->result = $r; # this will store an PDOStatement Object in result $this->result->execute(); # execute the Statement, to get its result return true; } //$a->save_timestamp($stamp1, "database"); if($this->debug) logger('dba: ' . printable(print_r($r, true))); return($r); } public function qfetch() { if (false === $this->result) return false; return $this->result->fetch(); } public function qclose() { if ($this->result) return $this->result->closeCursor(); } public function dbg($dbg) { $this->debug = $dbg; } public function escape($str) { if($this->db && $this->connected) { $strQuoted = $this->db->quote($str); # this workaround is needed, because quote creates "'" and the beginning and the end # of the string, which is correct. but until now the queries set this delimiter manually, # so we must remove them from here and wait until everything uses prepared statements return mb_substr($strQuoted, 1, mb_strlen($strQuoted) - 2); } } function __destruct() { if ($this->db) \DDDBL\disconnect(); } }} if(! function_exists('printable')) { function printable($s) { $s = preg_replace("~([\x01-\x08\x0E-\x0F\x10-\x1F\x7F-\xFF])~",".", $s); $s = str_replace("\x00",'.',$s); if(x($_SERVER,'SERVER_NAME')) $s = escape_tags($s); return $s; }} // Procedural functions if(! function_exists('dbg')) { function dbg($state) { global $db; if($db) $db->dbg($state); }} if(! function_exists('dbesc')) { function dbesc($str) { global $db; if($db && $db->connected) return($db->escape($str)); else return(str_replace("'","\\'",$str)); }} // Function: q($sql,$args); // Description: execute SQL query with printf style args. // Example: $r = q("SELECT * FROM `%s` WHERE `uid` = %d", // 'user', 1); if(! function_exists('q')) { function q($sql) { global $db; $args = func_get_args(); unset($args[0]); if($db && $db->connected) { $stmt = @vsprintf($sql,$args); // Disabled warnings //logger("dba: q: $stmt", LOGGER_ALL); if($stmt === false) logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG); return $db->q($stmt); } /** * * This will happen occasionally trying to store the * session data after abnormal program termination * */ logger('dba: no database: ' . print_r($args,true)); return false; }} /** * * Raw db query, no arguments * */ if(! function_exists('dbq')) { function dbq($sql) { global $db; if($db && $db->connected) $ret = $db->q($sql); else $ret = false; return $ret; }} // Caller is responsible for ensuring that any integer arguments to // dbesc_array are actually integers and not malformed strings containing // SQL injection vectors. All integer array elements should be specifically // cast to int to avoid trouble. if(! function_exists('dbesc_array_cb')) { function dbesc_array_cb(&$item, $key) { if(is_string($item)) $item = dbesc($item); }} if(! function_exists('dbesc_array')) { function dbesc_array(&$arr) { if(is_array($arr) && count($arr)) { array_walk($arr,'dbesc_array_cb'); } }} if(! function_exists('dba_timer')) { function dba_timer() { return microtime(true); }}