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<?php
/**
	@version   v5.20.9  21-Dec-2016
	@copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved.
	@copyright (c) 2014      Damien Regad, Mark Newnham and the ADOdb community

Released under both BSD license and Lesser GPL library license.
	Whenever there is any discrepancy between the two licenses,
	the BSD license will take precedence.

Set tabs to 4 for best viewing.

Latest version is available at http://adodb.sourceforge.net

Requires ODBC. Works on Windows and Unix.

Problems:
		Where is float/decimal type in pdo_param_type
		LOB handling for CLOB/BLOB differs significantly
*/

// security - hide paths
if (!defined('ADODB_DIR')) die();

/*
enum pdo_param_type {
PDO::PARAM_NULL, 0

/* int as in long (the php native int type).
 * If you mark a column as an int, PDO expects get_col to return
 * a pointer to a long
PDO::PARAM_INT, 1

/* get_col ptr should point to start of the string buffer
PDO::PARAM_STR, 2

/* get_col: when len is 0 ptr should point to a php_stream *,
 * otherwise it should behave like a string. Indicate a NULL field
 * value by setting the ptr to NULL
PDO::PARAM_LOB, 3

/* get_col: will expect the ptr to point to a new PDOStatement object handle,
 * but this isn't wired up yet
PDO::PARAM_STMT, 4 /* hierarchical result set

/* get_col ptr should point to a zend_bool
PDO::PARAM_BOOL, 5

/* magic flag to denote a parameter as being input/output
PDO::PARAM_INPUT_OUTPUT = 0x80000000
};
*/

function adodb_pdo_type($t)
{
	switch($t) {
	case 2: return 'VARCHAR';
	case 3: return 'BLOB';
	default: return 'NUMERIC';
	}
}

/*----------------------------------------------------------------------------*/

class ADODB_pdo extends ADOConnection {
	var $databaseType = "pdo";
	var $dataProvider = "pdo";
	var $fmtDate = "'Y-m-d'";
	var $fmtTimeStamp = "'Y-m-d, h:i:sA'";
	var $replaceQuote = "''"; // string to use to replace quotes
	var $hasAffectedRows = true;
	var $_bindInputArray = true;
	var $_genIDSQL;
	var $_genSeqSQL = "create table %s (id integer)";
	var $_dropSeqSQL;
	var $_autocommit = true;
	var $_haserrorfunctions = true;
	var $_lastAffectedRows = 0;

var $_errormsg = false;
	var $_errorno = false;

var $dsnType = '';
	var $stmt = false;
	var $_driver;

function __construct()
	{
	}

function _UpdatePDO()
	{
		$d = $this->_driver;
		$this->fmtDate = $d->fmtDate;
		$this->fmtTimeStamp = $d->fmtTimeStamp;
		$this->replaceQuote = $d->replaceQuote;
		$this->sysDate = $d->sysDate;
		$this->sysTimeStamp = $d->sysTimeStamp;
		$this->random = $d->random;
		$this->concat_operator = $d->concat_operator;
		$this->nameQuote = $d->nameQuote;

$this->hasGenID = $d->hasGenID;
		$this->_genIDSQL = $d->_genIDSQL;
		$this->_genSeqSQL = $d->_genSeqSQL;
		$this->_dropSeqSQL = $d->_dropSeqSQL;

$d->_init($this);
	}

function Time()
	{
		if (!empty($this->_driver->_hasdual)) {
			$sql = "select $this->sysTimeStamp from dual";
		}
		else {
			$sql = "select $this->sysTimeStamp";
		}

$rs = $this->_Execute($sql);
		if ($rs && !$rs->EOF) {
			return $this->UnixTimeStamp(reset($rs->fields));
		}

return false;
	}

// returns true or false
	function _connect($argDSN, $argUsername, $argPassword, $argDatabasename, $persist=false)
	{
		$at = strpos($argDSN,':');
		$this->dsnType = substr($argDSN,0,$at);

if ($argDatabasename) {
			switch($this->dsnType){
				case 'sqlsrv':
					$argDSN .= ';database='.$argDatabasename;
					break;
				case 'mssql':
				case 'mysql':
				case 'oci':
				case 'pgsql':
				case 'sqlite':
				default:
					$argDSN .= ';dbname='.$argDatabasename;
			}
		}
		try {
			$this->_connectionID = new PDO($argDSN, $argUsername, $argPassword);
		} catch (Exception $e) {
			$this->_connectionID = false;
			$this->_errorno = -1;
			//var_dump($e);
			$this->_errormsg = 'Connection attempt failed: '.$e->getMessage();
			return false;
		}

if ($this->_connectionID) {
			switch(ADODB_ASSOC_CASE){
				case ADODB_ASSOC_CASE_LOWER:
					$m = PDO::CASE_LOWER;
					break;
				case ADODB_ASSOC_CASE_UPPER:
					$m = PDO::CASE_UPPER;
					break;
				default:
				case ADODB_ASSOC_CASE_NATIVE:
					$m = PDO::CASE_NATURAL;
					break;
			}

//$this->_connectionID->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_SILENT );
			$this->_connectionID->setAttribute(PDO::ATTR_CASE,$m);

$class = 'ADODB_pdo_'.$this->dsnType;
			//$this->_connectionID->setAttribute(PDO::ATTR_AUTOCOMMIT,true);
			switch($this->dsnType) {
				case 'mssql':
				case 'mysql':
				case 'oci':
				case 'pgsql':
				case 'sqlite':
				case 'sqlsrv':
					include_once(ADODB_DIR.'/drivers/adodb-pdo_'.$this->dsnType.'.inc.php');
					break;
			}
			if (class_exists($class)) {
				$this->_driver = new $class();
			}
			else {
				$this->_driver = new ADODB_pdo_base();
			}

$this->_driver->_connectionID = $this->_connectionID;
			$this->_UpdatePDO();
			$this->_driver->database = $this->database;
			return true;
		}
		$this->_driver = new ADODB_pdo_base();
		return false;
	}

function Concat()
	{
		$args = func_get_args();
		if(method_exists($this->_driver, 'Concat')) {
			return call_user_func_array(array($this->_driver, 'Concat'), $args);
		}

if (PHP_VERSION >= 5.3) {
			return call_user_func_array('parent::Concat', $args);
		}
		return call_user_func_array(array($this,'parent::Concat'), $args);
	}

// returns true or false
	function _pconnect($argDSN, $argUsername, $argPassword, $argDatabasename)
	{
		return $this->_connect($argDSN, $argUsername, $argPassword, $argDatabasename, true);
	}

/*------------------------------------------------------------------------------*/

function SelectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs2cache=0)
	{
		$save = $this->_driver->fetchMode;
		$this->_driver->fetchMode = $this->fetchMode;
		$this->_driver->debug = $this->debug;
		$ret = $this->_driver->SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
		$this->_driver->fetchMode = $save;
		return $ret;
	}

function ServerInfo()
	{
		return $this->_driver->ServerInfo();
	}

function MetaTables($ttype=false,$showSchema=false,$mask=false)
	{
		return $this->_driver->MetaTables($ttype,$showSchema,$mask);
	}

function MetaColumns($table,$normalize=true)
	{
		return $this->_driver->MetaColumns($table,$normalize);
	}

function OffsetDate($dayFraction,$date=false)
	{
		return $this->_driver->OffsetDate($dayFraction,$date);
	}

function SelectDB($dbName)
	{
		return $this->_driver->SelectDB($dbName);
	}

function SQLDate($fmt, $col=false)
	{
		return $this->_driver->SQLDate($fmt, $col);
	}

if ($arr) {
			if (sizeof($arr)<2) {
				return '';
			}
			if ((integer)$arr[0]) {
				return $arr[2];
			}
			else {
				return '';
			}
		}
		else {
			return '-1';
		}
	}

if ($err == '00000') {
			return 0; // allows empty check
		}
		return $err;
	}

function SetTransactionMode($transaction_mode)
	{
		if(method_exists($this->_driver, 'SetTransactionMode')) {
			return $this->_driver->SetTransactionMode($transaction_mode);
		}

return parent::SetTransactionMode($seqname);
	}

function BeginTrans()
	{
		if(method_exists($this->_driver, 'BeginTrans')) {
			return $this->_driver->BeginTrans();
		}

if (!$this->hasTransactions) {
			return false;
		}
		if ($this->transOff) {
			return true;
		}
		$this->transCnt += 1;
		$this->_autocommit = false;
		$this->_connectionID->setAttribute(PDO::ATTR_AUTOCOMMIT,false);

return $this->_connectionID->beginTransaction();
	}

function CommitTrans($ok=true)
	{
		if(method_exists($this->_driver, 'CommitTrans')) {
			return $this->_driver->CommitTrans($ok);
		}

if (!$this->hasTransactions) {
			return false;
		}
		if ($this->transOff) {
			return true;
		}
		if (!$ok) {
			return $this->RollbackTrans();
		}
		if ($this->transCnt) {
			$this->transCnt -= 1;
		}
		$this->_autocommit = true;

$ret = $this->_connectionID->commit();
		$this->_connectionID->setAttribute(PDO::ATTR_AUTOCOMMIT,true);
		return $ret;
	}

function RollbackTrans()
	{
		if(method_exists($this->_driver, 'RollbackTrans')) {
			return $this->_driver->RollbackTrans();
		}

if (!$this->hasTransactions) {
			return false;
		}
		if ($this->transOff) {
			return true;
		}
		if ($this->transCnt) {
			$this->transCnt -= 1;
		}
		$this->_autocommit = true;

$ret = $this->_connectionID->rollback();
		$this->_connectionID->setAttribute(PDO::ATTR_AUTOCOMMIT,true);
		return $ret;
	}

function Prepare($sql)
	{
		$this->_stmt = $this->_connectionID->prepare($sql);
		if ($this->_stmt) {
			return array($sql,$this->_stmt);
		}

return false;
	}

function PrepareStmt($sql)
	{
		$stmt = $this->_connectionID->prepare($sql);
		if (!$stmt) {
			return false;
		}
		$obj = new ADOPDOStatement($stmt,$this);
		return $obj;
	}

function CreateSequence($seqname='adodbseq',$startID=1)
	{
		if(method_exists($this->_driver, 'CreateSequence')) {
			return $this->_driver->CreateSequence($seqname, $startID);
		}

return parent::CreateSequence($seqname, $startID);
	}

function DropSequence($seqname='adodbseq')
	{
		if(method_exists($this->_driver, 'DropSequence')) {
			return $this->_driver->DropSequence($seqname);
		}

return parent::DropSequence($seqname);
	}

function GenID($seqname='adodbseq',$startID=1)
	{
		if(method_exists($this->_driver, 'GenID')) {
			return $this->_driver->GenID($seqname, $startID);
		}

return parent::GenID($seqname, $startID);
	}

/* returns queryID or false */
	function _query($sql,$inputarr=false)
	{
		if (is_array($sql)) {
			$stmt = $sql[1];
		} else {
			$stmt = $this->_connectionID->prepare($sql);
		}
		#adodb_backtrace();
		#var_dump($this->_bindInputArray);
		if ($stmt) {
			$this->_driver->debug = $this->debug;
			if ($inputarr) {
				$ok = $stmt->execute($inputarr);
			}
			else {
				$ok = $stmt->execute();
			}
		}

$this->_errormsg = false;
		$this->_errorno = false;

if ($ok) {
			$this->_stmt = $stmt;
			return $stmt;
		}

if ($stmt) {

$arr = $stmt->errorinfo();
			if ((integer)$arr[1]) {
				$this->_errormsg = $arr[2];
				$this->_errorno = $arr[1];
			}

} else {
			$this->_errormsg = false;
			$this->_errorno = false;
		}
		return false;
	}

// returns true or false
	function _close()
	{
		$this->_stmt = false;
		return true;
	}

function _affectedrows()
	{
		return ($this->_stmt) ? $this->_stmt->rowCount() : 0;
	}

function _insertid()
	{
		return ($this->_connectionID) ? $this->_connectionID->lastInsertId() : 0;
	}

/**
	 * Quotes a string to be sent to the database.
	 * If we have an active connection, delegates quoting to the underlying
	 * PDO object. Otherwise, replace "'" by the value of $replaceQuote (same
	 * behavior as mysqli driver)
	 * @param string  $s            The string to quote
	 * @param boolean $magic_quotes If false, use PDO::quote().
	 * @return string Quoted string
	 */
	function qstr($s, $magic_quotes = false)
	{
		if (!$magic_quotes) {
			if ($this->_connectionID) {
				return $this->_connectionID->quote($s);
			}
			return "'" . str_replace("'", $this->replaceQuote, $s) . "'";
		}

// undo magic quotes for "
		$s = str_replace('\\"', '"', $s);
		return "'$s'";
	}

}

class ADODB_pdo_base extends ADODB_pdo {

var $sysDate = "'?'";
	var $sysTimeStamp = "'?'";

function _init($parentDriver)
	{
		$parentDriver->_bindInputArray = true;
		#$parentDriver->_connectionID->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY,true);
	}

function ServerInfo()
	{
		return ADOConnection::ServerInfo();
	}

function SelectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs2cache=0)
	{
		$ret = ADOConnection::SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
		return $ret;
	}

function MetaTables($ttype=false,$showSchema=false,$mask=false)
	{
		return false;
	}

function MetaColumns($table,$normalize=true)
	{
		return false;
	}
}

class ADOPDOStatement {

var $databaseType = "pdo";
	var $dataProvider = "pdo";
	var $_stmt;
	var $_connectionID;

function __construct($stmt,$connection)
	{
		$this->_stmt = $stmt;
		$this->_connectionID = $connection;
	}

function Execute($inputArr=false)
	{
		$savestmt = $this->_connectionID->_stmt;
		$rs = $this->_connectionID->Execute(array(false,$this->_stmt),$inputArr);
		$this->_connectionID->_stmt = $savestmt;
		return $rs;
	}

function InParameter(&$var,$name,$maxLen=4000,$type=false)
	{

if ($type) {
			$this->_stmt->bindParam($name,$var,$type,$maxLen);
		}
		else {
			$this->_stmt->bindParam($name, $var);
		}
	}

function Affected_Rows()
	{
		return ($this->_stmt) ? $this->_stmt->rowCount() : 0;
	}

function ErrorMsg()
	{
		if ($this->_stmt) {
			$arr = $this->_stmt->errorInfo();
		}
		else {
			$arr = $this->_connectionID->errorInfo();
		}

if (is_array($arr)) {
			if ((integer) $arr[0] && isset($arr[2])) {
				return $arr[2];
			}
			else {
				return '';
			}
		} else {
			return '-1';
		}
	}

function NumCols()
	{
		return ($this->_stmt) ? $this->_stmt->columnCount() : 0;
	}

function ErrorNo()
	{
		if ($this->_stmt) {
			return $this->_stmt->errorCode();
		}
		else {
			return $this->_connectionID->errorInfo();
		}
	}
}

/*--------------------------------------------------------------------------------------
	Class Name: Recordset
--------------------------------------------------------------------------------------*/

class ADORecordSet_pdo extends ADORecordSet {

var $bind = false;
	var $databaseType = "pdo";
	var $dataProvider = "pdo";

function __construct($id,$mode=false)
	{
		if ($mode === false) {
			global $ADODB_FETCH_MODE;
			$mode = $ADODB_FETCH_MODE;
		}
		$this->adodbFetchMode = $mode;
		switch($mode) {
		case ADODB_FETCH_NUM: $mode = PDO::FETCH_NUM; break;
		case ADODB_FETCH_ASSOC:  $mode = PDO::FETCH_ASSOC; break;

case ADODB_FETCH_BOTH:
		default: $mode = PDO::FETCH_BOTH; break;
		}
		$this->fetchMode = $mode;

$this->_queryID = $id;
		parent::__construct($id);
	}

function _initrs()
	{
	global $ADODB_COUNTRECS;

$this->_numOfRows = ($ADODB_COUNTRECS) ? @$this->_queryID->rowCount() : -1;
		if (!$this->_numOfRows) {
			$this->_numOfRows = -1;
		}
		$this->_numOfFields = $this->_queryID->columnCount();
	}

// returns the field object
	function FetchField($fieldOffset = -1)
	{
		$off=$fieldOffset+1; // offsets begin at 1

$o= new ADOFieldObject();
		$arr = @$this->_queryID->getColumnMeta($fieldOffset);
		if (!$arr) {
			$o->name = 'bad getColumnMeta()';
			$o->max_length = -1;
			$o->type = 'VARCHAR';
			$o->precision = 0;
	#		$false = false;
			return $o;
		}
		//adodb_pr($arr);
		$o->name = $arr['name'];
		if (isset($arr['sqlsrv:decl_type']) && $arr['sqlsrv:decl_type'] <> "null") 
		{
		    /*
		    * If the database is SQL server, use the native built-ins
		    */
		    $o->type = $arr['sqlsrv:decl_type'];
		}
		elseif (isset($arr['native_type']) && $arr['native_type'] <> "null") 
		{
		    $o->type = $arr['native_type'];
		}
		else 
		{
		     $o->type = adodb_pdo_type($arr['pdo_type']);
		}
		
		$o->max_length = $arr['len'];
		$o->precision = $arr['precision'];

switch(ADODB_ASSOC_CASE) {
			case ADODB_ASSOC_CASE_LOWER:
				$o->name = strtolower($o->name);
				break;
			case ADODB_ASSOC_CASE_UPPER:
				$o->name = strtoupper($o->name);
				break;
		}
		return $o;
	}

function _seek($row)
	{
		return false;
	}

function _fetch()
	{
		if (!$this->_queryID) {
			return false;
		}

$this->fields = $this->_queryID->fetch($this->fetchMode);
		return !empty($this->fields);
	}

function _close()
	{
		$this->_queryID = false;
	}

function Fields($colname)
	{
		if ($this->adodbFetchMode != ADODB_FETCH_NUM) {
			return @$this->fields[$colname];
		}

if (!$this->bind) {
			$this->bind = array();
			for ($i=0; $i < $this->_numOfFields; $i++) {
				$o = $this->FetchField($i);
				$this->bind[strtoupper($o->name)] = $i;
			}
		}
		return $this->fields[$this->bind[strtoupper($colname)]];
	}

}