913 lines
		
	
	
	
		
			22 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			913 lines
		
	
	
	
		
			22 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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require_once("dbm.php");
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require_once('include/datetime.php');
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/**
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 * @class MySQL database class
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 *
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 * For debugging, insert 'dbg(1);' anywhere in the program flow.
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 * dbg(0); will turn it off. Logging is performed at LOGGER_DATA level.
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 * When logging, all binary info is converted to text and html entities are escaped so that
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 * the debugging stream is safe to view within both terminals and web pages.
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 *
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 */
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class dba {
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	private $debug = 0;
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	private $db;
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	private $result;
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	private $driver;
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	public  $connected = false;
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	public  $error = false;
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	private $_server_info = '';
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	private static $dbo;
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	function __construct($server, $user, $pass, $db, $install = false) {
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		$a = get_app();
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		$stamp1 = microtime(true);
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		$server = trim($server);
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		$user = trim($user);
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		$pass = trim($pass);
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		$db = trim($db);
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		if (!(strlen($server) && strlen($user))) {
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			$this->connected = false;
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			$this->db = null;
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			return;
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		}
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		if ($install) {
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			if (strlen($server) && ($server !== 'localhost') && ($server !== '127.0.0.1')) {
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				if (! dns_get_record($server, DNS_A + DNS_CNAME + DNS_PTR)) {
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					$this->error = sprintf(t('Cannot locate DNS info for database server \'%s\''), $server);
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					$this->connected = false;
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					$this->db = null;
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					return;
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				}
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			}
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		}
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		if (class_exists('\PDO') && in_array('mysql', PDO::getAvailableDrivers())) {
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			$this->driver = 'pdo';
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			$connect = "mysql:host=".$server.";dbname=".$db;
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			if (isset($a->config["system"]["db_charset"])) {
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				$connect .= ";charset=".$a->config["system"]["db_charset"];
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			}
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			$this->db = @new PDO($connect, $user, $pass);
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			if (!$this->db->errorCode()) {
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				$this->connected = true;
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			}
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		} elseif (class_exists('mysqli')) {
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			$this->driver = 'mysqli';
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			$this->db = @new mysqli($server,$user,$pass,$db);
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			if (!mysqli_connect_errno()) {
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				$this->connected = true;
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				if (isset($a->config["system"]["db_charset"])) {
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					$this->db->set_charset($a->config["system"]["db_charset"]);
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				}
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			}
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		} elseif (function_exists('mysql_connect')) {
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			$this->driver = 'mysql';
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			$this->db = mysql_connect($server,$user,$pass);
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			if ($this->db && mysql_select_db($db,$this->db)) {
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				$this->connected = true;
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				if (isset($a->config["system"]["db_charset"])) {
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					mysql_set_charset($a->config["system"]["db_charset"], $this->db);
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				}
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			}
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		} else {
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			// No suitable SQL driver was found.
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			if (!$install) {
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				system_unavailable();
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			}
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		}
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		if (!$this->connected) {
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			$this->db = null;
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			if (!$install) {
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				system_unavailable();
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			}
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		}
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		$a->save_timestamp($stamp1, "network");
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		self::$dbo = $this;
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	}
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	/**
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	 * @brief Returns the MySQL server version string
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	 * 
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	 * This function discriminate between the deprecated mysql API and the current
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	 * object-oriented mysqli API. Example of returned string: 5.5.46-0+deb8u1
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	 *
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	 * @return string
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	 */
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	public function server_info() {
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		if ($this->_server_info == '') {
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			switch ($this->driver) {
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				case 'pdo':
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					$this->_server_info = $this->db->getAttribute(PDO::ATTR_SERVER_VERSION);
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					break;
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				case 'mysqli':
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					$this->_server_info = $this->db->server_info;
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					break;
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				case 'mysql':
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					$this->_server_info = mysql_get_server_info($this->db);
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					break;
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			}
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		}
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		return $this->_server_info;
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	}
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	/**
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	 * @brief Returns the selected database name
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	 *
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	 * @return string
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	 */
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	public function database_name() {
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		$r = $this->q("SELECT DATABASE() AS `db`");
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		return $r[0]['db'];
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	}
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	/**
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	 * @brief Returns the number of rows
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	 *
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	 * @return integer
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	 */
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	public function num_rows() {
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		if (!$this->result) {
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			return 0;
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		}
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		switch ($this->driver) {
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			case 'pdo':
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				$rows = $this->result->rowCount();
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				break;
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			case 'mysqli':
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				$rows = $this->result->num_rows;
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				break;
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			case 'mysql':
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				$rows = mysql_num_rows($this->result);
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				break;
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		}
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		return $rows;
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	}
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	/**
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	 * @brief Analyze a database query and log this if some conditions are met.
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	 *
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	 * @param string $query The database query that will be analyzed
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	 */
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	public function log_index($query) {
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		$a = get_app();
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		if ($a->config["system"]["db_log_index"] == "") {
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			return;
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		}
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		// Don't explain an explain statement
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		if (strtolower(substr($query, 0, 7)) == "explain") {
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			return;
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		}
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		// Only do the explain on "select", "update" and "delete"
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		if (!in_array(strtolower(substr($query, 0, 6)), array("select", "update", "delete"))) {
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			return;
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		}
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		$r = $this->q("EXPLAIN ".$query);
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		if (!dbm::is_result($r)) {
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			return;
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		}
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		$watchlist = explode(',', $a->config["system"]["db_log_index_watch"]);
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		$blacklist = explode(',', $a->config["system"]["db_log_index_blacklist"]);
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		foreach ($r AS $row) {
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			if ((intval($a->config["system"]["db_loglimit_index"]) > 0)) {
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				$log = (in_array($row['key'], $watchlist) AND
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					($row['rows'] >= intval($a->config["system"]["db_loglimit_index"])));
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			} else {
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				$log = false;
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			}
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			if ((intval($a->config["system"]["db_loglimit_index_high"]) > 0) AND ($row['rows'] >= intval($a->config["system"]["db_loglimit_index_high"]))) {
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				$log = true;
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			}
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			if (in_array($row['key'], $blacklist) OR ($row['key'] == "")) {
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				$log = false;
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			}
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			if ($log) {
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				$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
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				@file_put_contents($a->config["system"]["db_log_index"], datetime_convert()."\t".
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						$row['key']."\t".$row['rows']."\t".$row['Extra']."\t".
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						basename($backtrace[1]["file"])."\t".
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						$backtrace[1]["line"]."\t".$backtrace[2]["function"]."\t".
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						substr($query, 0, 2000)."\n", FILE_APPEND);
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			}
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		}
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	}
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	public function q($sql, $onlyquery = false) {
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		$a = get_app();
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		if (!$this->db || !$this->connected) {
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			return false;
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		}
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		$this->error = '';
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		$connstr = ($this->connected() ? "Connected" : "Disonnected");
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		$stamp1 = microtime(true);
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		$orig_sql = $sql;
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		if (x($a->config,'system') && x($a->config['system'], 'db_callstack')) {
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			$sql = "/*".$a->callstack()." */ ".$sql;
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		}
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		$columns = 0;
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		switch ($this->driver) {
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			case 'pdo':
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				$result = @$this->db->query($sql);
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				// Is used to separate between queries that returning data - or not
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				if (!is_bool($result)) {
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					$columns = $result->columnCount();
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				}
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				break;
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			case 'mysqli':
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				$result = @$this->db->query($sql);
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				break;
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			case 'mysql':
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				$result = @mysql_query($sql,$this->db);
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				break;
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		}
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		$stamp2 = microtime(true);
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		$duration = (float)($stamp2 - $stamp1);
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		$a->save_timestamp($stamp1, "database");
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		if (strtolower(substr($orig_sql, 0, 6)) != "select") {
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			$a->save_timestamp($stamp1, "database_write");
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		}
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		if (x($a->config,'system') && x($a->config['system'],'db_log')) {
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			if (($duration > $a->config["system"]["db_loglimit"])) {
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				$duration = round($duration, 3);
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				$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
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				@file_put_contents($a->config["system"]["db_log"], datetime_convert()."\t".$duration."\t".
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						basename($backtrace[1]["file"])."\t".
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						$backtrace[1]["line"]."\t".$backtrace[2]["function"]."\t".
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						substr($sql, 0, 2000)."\n", FILE_APPEND);
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			}
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		}
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		switch ($this->driver) {
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			case 'pdo':
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				$errorInfo = $this->db->errorInfo();
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						|
				if ($errorInfo) {
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					$this->error = $errorInfo[2];
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					$this->errorno = $errorInfo[1];
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				}
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				break;
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			case 'mysqli':
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				if ($this->db->errno) {
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					$this->error = $this->db->error;
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					$this->errorno = $this->db->errno;
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				}
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				break;
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			case 'mysql':
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				if (mysql_errno($this->db)) {
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					$this->error = mysql_error($this->db);
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					$this->errorno = mysql_errno($this->db);
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				}
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				break;
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		}
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		if (strlen($this->error)) {
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			logger('DB Error ('.$connstr.') '.$this->errorno.': '.$this->error);
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		}
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						|
		if ($this->debug) {
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			$mesg = '';
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			if ($result === false) {
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				$mesg = 'false';
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			} elseif ($result === true) {
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				$mesg = 'true';
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						|
			} else {
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				switch ($this->driver) {
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					case 'pdo':
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						$mesg = $result->rowCount().' results'.EOL;
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						break;
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					case 'mysqli':
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						$mesg = $result->num_rows.' results'.EOL;
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						break;
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					case 'mysql':
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						$mesg = mysql_num_rows($result).' results'.EOL;
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						break;
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				}
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			}
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			$str =  'SQL = ' . printable($sql) . EOL . 'SQL returned ' . $mesg
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				. (($this->error) ? ' error: ' . $this->error : '')
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				. EOL;
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			logger('dba: ' . $str );
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		}
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						|
		/**
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		 * If dbfail.out exists, we will write any failed calls directly to it,
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		 * regardless of any logging that may or may nor be in effect.
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		 * These usually indicate SQL syntax errors that need to be resolved.
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		 */
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		if ($result === false) {
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			logger('dba: ' . printable($sql) . ' returned false.' . "\n" . $this->error);
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						|
			if (file_exists('dbfail.out')) {
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				file_put_contents('dbfail.out', datetime_convert() . "\n" . printable($sql) . ' returned false' . "\n" . $this->error . "\n", FILE_APPEND);
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						|
			}
 | 
						|
		}
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						|
		if (is_bool($result)) {
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			return $result;
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						|
		}
 | 
						|
		if ($onlyquery) {
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			$this->result = $result;
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			return true;
 | 
						|
		}
 | 
						|
 | 
						|
		$r = array();
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						|
		switch ($this->driver) {
 | 
						|
			case 'pdo':
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						|
				while ($x = $result->fetch(PDO::FETCH_ASSOC)) {
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						|
					$r[] = $x;
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						|
				}
 | 
						|
				$result->closeCursor();
 | 
						|
				break;
 | 
						|
			case 'mysqli':
 | 
						|
				while ($x = $result->fetch_array(MYSQLI_ASSOC)) {
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						|
					$r[] = $x;
 | 
						|
				}
 | 
						|
				$result->free_result();
 | 
						|
				break;
 | 
						|
			case 'mysql':
 | 
						|
				while ($x = mysql_fetch_array($result, MYSQL_ASSOC)) {
 | 
						|
					$r[] = $x;
 | 
						|
				}
 | 
						|
				mysql_free_result($result);
 | 
						|
				break;
 | 
						|
		}
 | 
						|
 | 
						|
		// PDO doesn't return "true" on successful operations - like mysqli does
 | 
						|
		// Emulate this behaviour by checking if the query returned data and had columns
 | 
						|
		// This should be reliable enough
 | 
						|
		if (($this->driver == 'pdo') AND (count($r) == 0) AND ($columns == 0)) {
 | 
						|
			return true;
 | 
						|
		}
 | 
						|
 | 
						|
		//$a->save_timestamp($stamp1, "database");
 | 
						|
 | 
						|
		if ($this->debug) {
 | 
						|
			logger('dba: ' . printable(print_r($r, true)));
 | 
						|
		}
 | 
						|
		return($r);
 | 
						|
	}
 | 
						|
 | 
						|
	public function qfetch() {
 | 
						|
		$x = false;
 | 
						|
 | 
						|
		if ($this->result) {
 | 
						|
			switch ($this->driver) {
 | 
						|
				case 'pdo':
 | 
						|
					$x = $this->result->fetch(PDO::FETCH_ASSOC);
 | 
						|
					break;
 | 
						|
				case 'mysqli':
 | 
						|
					$x = $this->result->fetch_array(MYSQLI_ASSOC);
 | 
						|
					break;
 | 
						|
				case 'mysql':
 | 
						|
					$x = mysql_fetch_array($this->result, MYSQL_ASSOC);
 | 
						|
					break;
 | 
						|
			}
 | 
						|
		}
 | 
						|
		return($x);
 | 
						|
	}
 | 
						|
 | 
						|
	public function qclose() {
 | 
						|
		if ($this->result) {
 | 
						|
			switch ($this->driver) {
 | 
						|
				case 'pdo':
 | 
						|
					$this->result->closeCursor();
 | 
						|
					break;
 | 
						|
				case 'mysqli':
 | 
						|
					$this->result->free_result();
 | 
						|
					break;
 | 
						|
				case 'mysql':
 | 
						|
					mysql_free_result($this->result);
 | 
						|
					break;
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	public function dbg($dbg) {
 | 
						|
		$this->debug = $dbg;
 | 
						|
	}
 | 
						|
 | 
						|
	public function escape($str) {
 | 
						|
		if ($this->db && $this->connected) {
 | 
						|
			switch ($this->driver) {
 | 
						|
				case 'pdo':
 | 
						|
					return substr(@$this->db->quote($str, PDO::PARAM_STR), 1, -1);
 | 
						|
				case 'mysqli':
 | 
						|
					return @$this->db->real_escape_string($str);
 | 
						|
				case 'mysql':
 | 
						|
					return @mysql_real_escape_string($str,$this->db);
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	function connected() {
 | 
						|
		switch ($this->driver) {
 | 
						|
			case 'pdo':
 | 
						|
				// Not sure if this really is working like expected
 | 
						|
				$connected = ($this->db->getAttribute(PDO::ATTR_CONNECTION_STATUS) != "");
 | 
						|
				break;
 | 
						|
			case 'mysqli':
 | 
						|
				$connected = $this->db->ping();
 | 
						|
				break;
 | 
						|
			case 'mysql':
 | 
						|
				$connected = mysql_ping($this->db);
 | 
						|
				break;
 | 
						|
		}
 | 
						|
		return $connected;
 | 
						|
	}
 | 
						|
 | 
						|
	function insert_id() {
 | 
						|
		switch ($this->driver) {
 | 
						|
			case 'pdo':
 | 
						|
				$id = $this->db->lastInsertId();
 | 
						|
				break;
 | 
						|
			case 'mysqli':
 | 
						|
				$id = $this->db->insert_id;
 | 
						|
				break;
 | 
						|
			case 'mysql':
 | 
						|
				$id = mysql_insert_id($this->db);
 | 
						|
				break;
 | 
						|
		}
 | 
						|
		return $id;
 | 
						|
	}
 | 
						|
 | 
						|
	function __destruct() {
 | 
						|
		if ($this->db) {
 | 
						|
			switch ($this->driver) {
 | 
						|
				case 'pdo':
 | 
						|
					$this->db = null;
 | 
						|
					break;
 | 
						|
				case 'mysqli':
 | 
						|
					$this->db->close();
 | 
						|
					break;
 | 
						|
				case 'mysql':
 | 
						|
					mysql_close($this->db);
 | 
						|
					break;
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * @brief Replaces ANY_VALUE() function by MIN() function,
 | 
						|
	 *  if the database server does not support ANY_VALUE().
 | 
						|
	 *
 | 
						|
	 * Considerations for Standard SQL, or MySQL with ONLY_FULL_GROUP_BY (default since 5.7.5).
 | 
						|
	 * ANY_VALUE() is available from MySQL 5.7.5 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
 | 
						|
	 * A standard fall-back is to use MIN().
 | 
						|
	 *
 | 
						|
	 * @param string $sql An SQL string without the values
 | 
						|
	 * @return string The input SQL string modified if necessary.
 | 
						|
	 */
 | 
						|
	public function any_value_fallback($sql) {
 | 
						|
		$server_info = $this->server_info();
 | 
						|
		if (version_compare($server_info, '5.7.5', '<') ||
 | 
						|
			(stripos($server_info, 'MariaDB') !== false)) {
 | 
						|
			$sql = str_ireplace('ANY_VALUE(', 'MIN(', $sql);
 | 
						|
		}
 | 
						|
		return $sql;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * @brief Executes a prepared statement
 | 
						|
	 *
 | 
						|
	 * @param string $sql SQL statement
 | 
						|
	 * @return object statement object
 | 
						|
	 */
 | 
						|
	static public function p($sql) {
 | 
						|
		$a = get_app();
 | 
						|
 | 
						|
		$stamp1 = microtime(true);
 | 
						|
 | 
						|
		$args = func_get_args();
 | 
						|
		unset($args[0]);
 | 
						|
 | 
						|
		if (!self::$dbo OR !self::$dbo->connected) {
 | 
						|
			return false;
 | 
						|
		}
 | 
						|
 | 
						|
		$sql = self::$dbo->any_value_fallback($sql);
 | 
						|
 | 
						|
		$orig_sql = $sql;
 | 
						|
 | 
						|
		if (x($a->config,'system') && x($a->config['system'], 'db_callstack')) {
 | 
						|
			$sql = "/*".$a->callstack()." */ ".$sql;
 | 
						|
		}
 | 
						|
 | 
						|
		switch (self::$dbo->driver) {
 | 
						|
			case 'pdo':
 | 
						|
				if (!$stmt = self::$dbo->db->prepare($sql)) {
 | 
						|
					$errorInfo = self::$dbo->db->errorInfo();
 | 
						|
					self::$dbo->error = $errorInfo[2];
 | 
						|
					self::$dbo->errorno = $errorInfo[1];
 | 
						|
					$retval = false;
 | 
						|
					break;
 | 
						|
				}
 | 
						|
 | 
						|
				foreach ($args AS $param => $value) {
 | 
						|
					$stmt->bindParam($param, $args[$param]);
 | 
						|
				}
 | 
						|
 | 
						|
				if (!$stmt->execute()) {
 | 
						|
					$errorInfo = self::$dbo->db->errorInfo();
 | 
						|
					self::$dbo->error = $errorInfo[2];
 | 
						|
					self::$dbo->errorno = $errorInfo[1];
 | 
						|
					$retval = false;
 | 
						|
				} else {
 | 
						|
					$retval = $stmt;
 | 
						|
				}
 | 
						|
				break;
 | 
						|
			case 'mysqli':
 | 
						|
				$stmt = self::$dbo->db->stmt_init();
 | 
						|
 | 
						|
				if (!$stmt->prepare($sql)) {
 | 
						|
					self::$dbo->error = self::$dbo->db->error;
 | 
						|
					self::$dbo->errorno = self::$dbo->db->errno;
 | 
						|
					$retval = false;
 | 
						|
					break;
 | 
						|
				}
 | 
						|
 | 
						|
				$params = '';
 | 
						|
				$values = array();
 | 
						|
				foreach ($args AS $param => $value) {
 | 
						|
					if (is_int($args[$param])) {
 | 
						|
						$params .= 'i';
 | 
						|
					} elseif (is_float($args[$param])) {
 | 
						|
						$params .= 'd';
 | 
						|
					} elseif (is_string($args[$param])) {
 | 
						|
						$params .= 's';
 | 
						|
					} else {
 | 
						|
						$params .= 'b';
 | 
						|
					}
 | 
						|
					$values[] = &$args[$param];
 | 
						|
				}
 | 
						|
 | 
						|
				array_unshift($values, $params);
 | 
						|
 | 
						|
				call_user_func_array(array($stmt, 'bind_param'), $values);
 | 
						|
 | 
						|
				if (!$stmt->execute()) {
 | 
						|
					self::$dbo->error = self::$dbo->db->error;
 | 
						|
					self::$dbo->errorno = self::$dbo->db->errno;
 | 
						|
					$retval = false;
 | 
						|
				} elseif (method_exists($stmt, 'get_result')) {
 | 
						|
					// Is mysqlnd installed?
 | 
						|
					$retval = $stmt->get_result();
 | 
						|
				} else {
 | 
						|
					$stmt->store_result();
 | 
						|
					$retval = $stmt;
 | 
						|
				}
 | 
						|
				break;
 | 
						|
			case 'mysql':
 | 
						|
				// For the old "mysql" functions we cannot use prepared statements
 | 
						|
				foreach ($args AS $param => $value) {
 | 
						|
					if (is_int($args[$param]) OR is_float($args[$param])) {
 | 
						|
						$replace = intval($args[$param]);
 | 
						|
					} else {
 | 
						|
						$replace = "'".dbesc($args[$param])."'";
 | 
						|
					}
 | 
						|
 | 
						|
					$pos = strpos($sql, '?');
 | 
						|
					if ($pos !== false) {
 | 
						|
						$sql = substr_replace($sql, $replace, $pos, 1);
 | 
						|
					}
 | 
						|
				}
 | 
						|
 | 
						|
				$retval = mysql_query($sql, self::$dbo->db);
 | 
						|
				if (mysql_errno(self::$dbo->db)) {
 | 
						|
					self::$dbo->error = mysql_error(self::$dbo->db);
 | 
						|
					self::$dbo->errorno = mysql_errno(self::$dbo->db);
 | 
						|
				}
 | 
						|
				break;
 | 
						|
		}
 | 
						|
 | 
						|
		$a->save_timestamp($stamp1, 'database');
 | 
						|
 | 
						|
                if (x($a->config,'system') && x($a->config['system'], 'db_log')) {
 | 
						|
 | 
						|
			$stamp2 = microtime(true);
 | 
						|
			$duration = (float)($stamp2 - $stamp1);
 | 
						|
 | 
						|
                        if (($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);
 | 
						|
                        }
 | 
						|
                }
 | 
						|
		return $retval;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * @brief Executes a prepared statement
 | 
						|
	 *
 | 
						|
	 * @param string $sql SQL statement
 | 
						|
	 * @return boolean Was the query successfull?
 | 
						|
	 */
 | 
						|
	static public function e($sql) {
 | 
						|
		$a = get_app();
 | 
						|
 | 
						|
		$stamp = microtime(true);
 | 
						|
 | 
						|
		$args = func_get_args();
 | 
						|
 | 
						|
		$stmt = call_user_func_array('self::p', $args);
 | 
						|
 | 
						|
		if (is_bool($stmt)) {
 | 
						|
			$retval = $stmt;
 | 
						|
		} elseif (is_object($stmt)) {
 | 
						|
			$retval = true;
 | 
						|
		} else {
 | 
						|
			$retval = false;
 | 
						|
		}
 | 
						|
 | 
						|
		self::close($stmt);
 | 
						|
 | 
						|
		$a->save_timestamp($stamp, "database_write");
 | 
						|
 | 
						|
		return $retval;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * @brief Check if data exists
 | 
						|
	 *
 | 
						|
	 * @param string $sql SQL statement
 | 
						|
	 * @return boolean Are there rows for that query?
 | 
						|
	 */
 | 
						|
	static public function exists($sql) {
 | 
						|
		$args = func_get_args();
 | 
						|
 | 
						|
		$stmt = call_user_func_array('self::p', $args);
 | 
						|
 | 
						|
		if (is_bool($stmt)) {
 | 
						|
			$retval = $stmt;
 | 
						|
		} else {
 | 
						|
			$retval = (self::rows($stmt) > 0);
 | 
						|
		}
 | 
						|
 | 
						|
		self::close($stmt);
 | 
						|
 | 
						|
		return $retval;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * @brief Returnr the number of rows of a statement
 | 
						|
	 *
 | 
						|
	 * @param object Statement object
 | 
						|
	 * @return int Number of rows
 | 
						|
	 */
 | 
						|
	static public function rows($stmt) {
 | 
						|
		switch (self::$dbo->driver) {
 | 
						|
			case 'pdo':
 | 
						|
				return $stmt->rowCount();
 | 
						|
			case 'mysqli':
 | 
						|
				return $stmt->num_rows;
 | 
						|
			case 'mysql':
 | 
						|
				return mysql_num_rows($stmt);
 | 
						|
		}
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * @brief Fetch a single row
 | 
						|
	 *
 | 
						|
	 * @param object $stmt statement object
 | 
						|
	 * @return array current row
 | 
						|
	 */
 | 
						|
	static public function fetch($stmt) {
 | 
						|
		if (!is_object($stmt)) {
 | 
						|
			return false;
 | 
						|
		}
 | 
						|
 | 
						|
		switch (self::$dbo->driver) {
 | 
						|
			case 'pdo':
 | 
						|
				return $stmt->fetch(PDO::FETCH_ASSOC);
 | 
						|
			case 'mysqli':
 | 
						|
				// When mysqlnd is installed, we can use a shortcut
 | 
						|
				if (method_exists($stmt, 'fetch_array')) {
 | 
						|
					return $stmt->fetch_array(MYSQLI_ASSOC);
 | 
						|
				}
 | 
						|
 | 
						|
				// This code works, but is slow
 | 
						|
 | 
						|
				// Bind the result to a result array
 | 
						|
				$cols = array();
 | 
						|
 | 
						|
				$cols_num = array();
 | 
						|
				for ($x = 0; $x < $stmt->field_count; $x++) {
 | 
						|
					$cols[] = &$cols_num[$x];
 | 
						|
				}
 | 
						|
 | 
						|
				call_user_func_array(array($stmt, 'bind_result'), $cols);
 | 
						|
 | 
						|
				$success = $stmt->fetch();
 | 
						|
 | 
						|
				if (!$success) {
 | 
						|
					return false;
 | 
						|
				}
 | 
						|
 | 
						|
				// The slow part:
 | 
						|
				// We need to get the field names for the array keys
 | 
						|
				// It seems that there is no better way to do this.
 | 
						|
				$result = $stmt->result_metadata();
 | 
						|
				$fields = $result->fetch_fields();
 | 
						|
 | 
						|
				$columns = array();
 | 
						|
				foreach ($cols_num AS $param => $col) {
 | 
						|
					$columns[$fields[$param]->name] = $col;
 | 
						|
				}
 | 
						|
				return $columns;
 | 
						|
			case 'mysql':
 | 
						|
				return mysql_fetch_array(self::$dbo->result, MYSQL_ASSOC);
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * @brief Closes the current statement
 | 
						|
	 *
 | 
						|
	 * @param object $stmt statement object
 | 
						|
	 * @return boolean was the close successfull?
 | 
						|
	 */
 | 
						|
	static public function close($stmt) {
 | 
						|
		if (!is_object($stmt)) {
 | 
						|
			return false;
 | 
						|
		}
 | 
						|
 | 
						|
		switch (self::$dbo->driver) {
 | 
						|
			case 'pdo':
 | 
						|
				return $stmt->closeCursor();
 | 
						|
			case 'mysqli':
 | 
						|
				return $stmt->close();
 | 
						|
			case 'mysql':
 | 
						|
				return mysql_free_result($stmt);
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
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 $s;
 | 
						|
}
 | 
						|
 | 
						|
// Procedural functions
 | 
						|
function dbg($state) {
 | 
						|
	global $db;
 | 
						|
 | 
						|
	if ($db) {
 | 
						|
		$db->dbg($state);
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
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: $r = q("SELECT * FROM `%s` WHERE `uid` = %d",
 | 
						|
//                   'user', 1);
 | 
						|
function q($sql) {
 | 
						|
	global $db;
 | 
						|
	$args = func_get_args();
 | 
						|
	unset($args[0]);
 | 
						|
 | 
						|
	if ($db && $db->connected) {
 | 
						|
		$sql = $db->any_value_fallback($sql);
 | 
						|
		$stmt = @vsprintf($sql,$args); // Disabled warnings
 | 
						|
		//logger("dba: q: $stmt", LOGGER_ALL);
 | 
						|
		if ($stmt === false)
 | 
						|
			logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);
 | 
						|
 | 
						|
		$db->log_index($stmt);
 | 
						|
 | 
						|
		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;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * @brief Performs a query with "dirty reads"
 | 
						|
 *
 | 
						|
 * By doing dirty reads (reading uncommitted data) no locks are performed
 | 
						|
 * This function can be used to fetch data that doesn't need to be reliable.
 | 
						|
 *
 | 
						|
 * @param $args Query parameters (1 to N parameters of different types)
 | 
						|
 * @return array Query array
 | 
						|
 */
 | 
						|
function qu($sql) {
 | 
						|
	global $db;
 | 
						|
 | 
						|
	$args = func_get_args();
 | 
						|
	unset($args[0]);
 | 
						|
 | 
						|
	if ($db && $db->connected) {
 | 
						|
		$sql = $db->any_value_fallback($sql);
 | 
						|
		$stmt = @vsprintf($sql,$args); // Disabled warnings
 | 
						|
		if ($stmt === false)
 | 
						|
			logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);
 | 
						|
 | 
						|
		$db->log_index($stmt);
 | 
						|
 | 
						|
		$db->q("SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;");
 | 
						|
		$retval = $db->q($stmt);
 | 
						|
		$db->q("SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;");
 | 
						|
		return $retval;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 *
 | 
						|
	 * This will happen occasionally trying to store the
 | 
						|
	 * session data after abnormal program termination
 | 
						|
	 *
 | 
						|
	 */
 | 
						|
	logger('dba: no database: ' . print_r($args,true));
 | 
						|
	return false;
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 *
 | 
						|
 * Raw db query, no arguments
 | 
						|
 *
 | 
						|
 */
 | 
						|
function dbq($sql) {
 | 
						|
	global $db;
 | 
						|
 | 
						|
	if ($db && $db->connected) {
 | 
						|
		$ret = $db->q($sql);
 | 
						|
	} else {
 | 
						|
		$ret = false;
 | 
						|
	}
 | 
						|
	return $ret;
 | 
						|
}
 | 
						|
 | 
						|
// Caller is responsible for ensuring that any integer arguments to
 | 
						|
// dbesc_array are actually integers and not malformed strings containing
 | 
						|
// SQL injection vectors. All integer array elements should be specifically
 | 
						|
// cast to int to avoid trouble.
 | 
						|
function dbesc_array_cb(&$item, $key) {
 | 
						|
	if (is_string($item))
 | 
						|
		$item = dbesc($item);
 | 
						|
}
 | 
						|
 | 
						|
function dbesc_array(&$arr) {
 | 
						|
	if (is_array($arr) && count($arr)) {
 | 
						|
		array_walk($arr,'dbesc_array_cb');
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
function dba_timer() {
 | 
						|
	return microtime(true);
 | 
						|
}
 |