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<?php
namespace PhpOffice\PhpSpreadsheet\Shared\OLE\PPS;
// vim: set expandtab tabstop=4 shiftwidth=4:
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2002 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Author: Xavier Noguer <xnoguer@php.net> |
// | Based on OLE::Storage_Lite by Kawai, Takanori |
// +----------------------------------------------------------------------+
//
use PhpOffice\PhpSpreadsheet\Shared\OLE;
use PhpOffice\PhpSpreadsheet\Shared\OLE\PPS;
/**
* Class for creating Root PPS's for OLE containers.
*
* @author Xavier Noguer <xnoguer@php.net>
*/
class Root extends PPS
{
/**
* @var resource
*/
private $fileHandle;
/**
* @var int
*/
private $smallBlockSize;
/**
* @var int
*/
private $bigBlockSize;
/**
* @param null|float|int $time_1st A timestamp
* @param null|float|int $time_2nd A timestamp
* @param File[] $raChild
*/
public function __construct($time_1st, $time_2nd, $raChild)
{
parent::__construct(null, OLE::ascToUcs('Root Entry'), OLE::OLE_PPS_TYPE_ROOT, null, null, null, $time_1st, $time_2nd, null, $raChild);
}
/**
* Method for saving the whole OLE container (including files).
* In fact, if called with an empty argument (or '-'), it saves to a
* temporary file and then outputs it's contents to stdout.
* If a resource pointer to a stream created by fopen() is passed
* it will be used, but you have to close such stream by yourself.
*
* @param resource $fileHandle the name of the file or stream where to save the OLE container
*
* @return bool true on success
*/
public function save($fileHandle)
{
$this->fileHandle = $fileHandle;
// Initial Setting for saving
$this->bigBlockSize = (int) (2 ** (
(isset($this->bigBlockSize)) ? self::adjust2($this->bigBlockSize) : 9
));
$this->smallBlockSize = (int) (2 ** (
(isset($this->smallBlockSize)) ? self::adjust2($this->smallBlockSize) : 6
));
// Make an array of PPS's (for Save)
$aList = [];
PPS::savePpsSetPnt($aList, [$this]);
// calculate values for header
[$iSBDcnt, $iBBcnt, $iPPScnt] = $this->calcSize($aList); //, $rhInfo);
// Save Header
$this->saveHeader($iSBDcnt, $iBBcnt, $iPPScnt);
// Make Small Data string (write SBD)
$this->_data = $this->makeSmallData($aList);
// Write BB
$this->saveBigData($iSBDcnt, $aList);
// Write PPS
$this->savePps($aList);
// Write Big Block Depot and BDList and Adding Header informations
$this->saveBbd($iSBDcnt, $iBBcnt, $iPPScnt);
return true;
}
/**
* Calculate some numbers.
*
* @param array $raList Reference to an array of PPS's
*
* @return float[] The array of numbers
*/
private function calcSize(&$raList)
{
// Calculate Basic Setting
[$iSBDcnt, $iBBcnt, $iPPScnt] = [0, 0, 0];
$iSmallLen = 0;
$iSBcnt = 0;
$iCount = count($raList);
for ($i = 0; $i < $iCount; ++$i) {
if ($raList[$i]->Type == OLE::OLE_PPS_TYPE_FILE) {
$raList[$i]->Size = $raList[$i]->getDataLen();
if ($raList[$i]->Size < OLE::OLE_DATA_SIZE_SMALL) {
$iSBcnt += floor($raList[$i]->Size / $this->smallBlockSize)
+ (($raList[$i]->Size % $this->smallBlockSize) ? 1 : 0);
} else {
$iBBcnt += (floor($raList[$i]->Size / $this->bigBlockSize) +
(($raList[$i]->Size % $this->bigBlockSize) ? 1 : 0));
}
}
}
$iSmallLen = $iSBcnt * $this->smallBlockSize;
$iSlCnt = floor($this->bigBlockSize / OLE::OLE_LONG_INT_SIZE);
$iSBDcnt = floor($iSBcnt / $iSlCnt) + (($iSBcnt % $iSlCnt) ? 1 : 0);
$iBBcnt += (floor($iSmallLen / $this->bigBlockSize) +
(($iSmallLen % $this->bigBlockSize) ? 1 : 0));
$iCnt = count($raList);
$iBdCnt = $this->bigBlockSize / OLE::OLE_PPS_SIZE;
$iPPScnt = (floor($iCnt / $iBdCnt) + (($iCnt % $iBdCnt) ? 1 : 0));
return [$iSBDcnt, $iBBcnt, $iPPScnt];
}
/**
* Helper function for caculating a magic value for block sizes.
*
* @param int $i2 The argument
*
* @return float
*
* @see save()
*/
private static function adjust2($i2)
{
$iWk = log($i2) / log(2);
return ($iWk > floor($iWk)) ? floor($iWk) + 1 : $iWk;
}
/**
* Save OLE header.
*
* @param int $iSBDcnt
* @param int $iBBcnt
* @param int $iPPScnt
*/
private function saveHeader($iSBDcnt, $iBBcnt, $iPPScnt): void
{
$FILE = $this->fileHandle;
// Calculate Basic Setting
$iBlCnt = $this->bigBlockSize / OLE::OLE_LONG_INT_SIZE;
$i1stBdL = ($this->bigBlockSize - 0x4C) / OLE::OLE_LONG_INT_SIZE;
$iBdExL = 0;
$iAll = $iBBcnt + $iPPScnt + $iSBDcnt;
$iAllW = $iAll;
$iBdCntW = floor($iAllW / $iBlCnt) + (($iAllW % $iBlCnt) ? 1 : 0);
$iBdCnt = floor(($iAll + $iBdCntW) / $iBlCnt) + ((($iAllW + $iBdCntW) % $iBlCnt) ? 1 : 0);
// Calculate BD count
if ($iBdCnt > $i1stBdL) {
while (1) {
++$iBdExL;
++$iAllW;
$iBdCntW = floor($iAllW / $iBlCnt) + (($iAllW % $iBlCnt) ? 1 : 0);
$iBdCnt = floor(($iAllW + $iBdCntW) / $iBlCnt) + ((($iAllW + $iBdCntW) % $iBlCnt) ? 1 : 0);
if ($iBdCnt <= ($iBdExL * $iBlCnt + $i1stBdL)) {
break;
}
}
}
// Save Header
fwrite(
$FILE,
"\xD0\xCF\x11\xE0\xA1\xB1\x1A\xE1"
. "\x00\x00\x00\x00"
. "\x00\x00\x00\x00"
. "\x00\x00\x00\x00"
. "\x00\x00\x00\x00"
. pack('v', 0x3b)
. pack('v', 0x03)
. pack('v', -2)
. pack('v', 9)
. pack('v', 6)
. pack('v', 0)
. "\x00\x00\x00\x00"
. "\x00\x00\x00\x00"
. pack('V', $iBdCnt)
. pack('V', $iBBcnt + $iSBDcnt) //ROOT START
. pack('V', 0)
. pack('V', 0x1000)
. pack('V', $iSBDcnt ? 0 : -2) //Small Block Depot
. pack('V', $iSBDcnt)
);
// Extra BDList Start, Count
if ($iBdCnt < $i1stBdL) {
fwrite(
$FILE,
pack('V', -2) // Extra BDList Start
. pack('V', 0)// Extra BDList Count
);
} else {
fwrite($FILE, pack('V', $iAll + $iBdCnt) . pack('V', $iBdExL));
}
// BDList
for ($i = 0; $i < $i1stBdL && $i < $iBdCnt; ++$i) {
fwrite($FILE, pack('V', $iAll + $i));
}
if ($i < $i1stBdL) {
$jB = $i1stBdL - $i;
for ($j = 0; $j < $jB; ++$j) {
fwrite($FILE, (pack('V', -1)));
}
}
}
/**
* Saving big data (PPS's with data bigger than \PhpOffice\PhpSpreadsheet\Shared\OLE::OLE_DATA_SIZE_SMALL).
*
* @param int $iStBlk
* @param array $raList Reference to array of PPS's
*/
private function saveBigData($iStBlk, &$raList): void
{
$FILE = $this->fileHandle;
// cycle through PPS's
$iCount = count($raList);
for ($i = 0; $i < $iCount; ++$i) {
if ($raList[$i]->Type != OLE::OLE_PPS_TYPE_DIR) {
$raList[$i]->Size = $raList[$i]->getDataLen();
if (($raList[$i]->Size >= OLE::OLE_DATA_SIZE_SMALL) || (($raList[$i]->Type == OLE::OLE_PPS_TYPE_ROOT) && isset($raList[$i]->_data))) {
fwrite($FILE, $raList[$i]->_data);
if ($raList[$i]->Size % $this->bigBlockSize) {
fwrite($FILE, str_repeat("\x00", $this->bigBlockSize - ($raList[$i]->Size % $this->bigBlockSize)));
}
// Set For PPS
$raList[$i]->startBlock = $iStBlk;
$iStBlk +=
(floor($raList[$i]->Size / $this->bigBlockSize) +
(($raList[$i]->Size % $this->bigBlockSize) ? 1 : 0));
}
}
}
}
/**
* get small data (PPS's with data smaller than \PhpOffice\PhpSpreadsheet\Shared\OLE::OLE_DATA_SIZE_SMALL).
*
* @param array $raList Reference to array of PPS's
*
* @return string
*/
private function makeSmallData(&$raList)
{
$sRes = '';
$FILE = $this->fileHandle;
$iSmBlk = 0;
$iCount = count($raList);
for ($i = 0; $i < $iCount; ++$i) {
// Make SBD, small data string
if ($raList[$i]->Type == OLE::OLE_PPS_TYPE_FILE) {
if ($raList[$i]->Size <= 0) {
continue;
}
if ($raList[$i]->Size < OLE::OLE_DATA_SIZE_SMALL) {
$iSmbCnt = floor($raList[$i]->Size / $this->smallBlockSize)
+ (($raList[$i]->Size % $this->smallBlockSize) ? 1 : 0);
// Add to SBD
$jB = $iSmbCnt - 1;
for ($j = 0; $j < $jB; ++$j) {
fwrite($FILE, pack('V', $j + $iSmBlk + 1));
}
fwrite($FILE, pack('V', -2));
// Add to Data String(this will be written for RootEntry)
$sRes .= $raList[$i]->_data;
if ($raList[$i]->Size % $this->smallBlockSize) {
$sRes .= str_repeat("\x00", $this->smallBlockSize - ($raList[$i]->Size % $this->smallBlockSize));
}
// Set for PPS
$raList[$i]->startBlock = $iSmBlk;
$iSmBlk += $iSmbCnt;
}
}
}
$iSbCnt = floor($this->bigBlockSize / OLE::OLE_LONG_INT_SIZE);
if ($iSmBlk % $iSbCnt) {
$iB = $iSbCnt - ($iSmBlk % $iSbCnt);
for ($i = 0; $i < $iB; ++$i) {
fwrite($FILE, pack('V', -1));
}
}
return $sRes;
}
/**
* Saves all the PPS's WKs.
*
* @param array $raList Reference to an array with all PPS's
*/
private function savePps(&$raList): void
{
// Save each PPS WK
$iC = count($raList);
for ($i = 0; $i < $iC; ++$i) {
fwrite($this->fileHandle, $raList[$i]->getPpsWk());
}
// Adjust for Block
$iCnt = count($raList);
$iBCnt = $this->bigBlockSize / OLE::OLE_PPS_SIZE;
if ($iCnt % $iBCnt) {
fwrite($this->fileHandle, str_repeat("\x00", ($iBCnt - ($iCnt % $iBCnt)) * OLE::OLE_PPS_SIZE));
}
}
/**
* Saving Big Block Depot.
*
* @param int $iSbdSize
* @param int $iBsize
* @param int $iPpsCnt
*/
private function saveBbd($iSbdSize, $iBsize, $iPpsCnt): void
{
$FILE = $this->fileHandle;
// Calculate Basic Setting
$iBbCnt = $this->bigBlockSize / OLE::OLE_LONG_INT_SIZE;
$i1stBdL = ($this->bigBlockSize - 0x4C) / OLE::OLE_LONG_INT_SIZE;
$iBdExL = 0;
$iAll = $iBsize + $iPpsCnt + $iSbdSize;
$iAllW = $iAll;
$iBdCntW = floor($iAllW / $iBbCnt) + (($iAllW % $iBbCnt) ? 1 : 0);
$iBdCnt = floor(($iAll + $iBdCntW) / $iBbCnt) + ((($iAllW + $iBdCntW) % $iBbCnt) ? 1 : 0);
// Calculate BD count
if ($iBdCnt > $i1stBdL) {
while (1) {
++$iBdExL;
++$iAllW;
$iBdCntW = floor($iAllW / $iBbCnt) + (($iAllW % $iBbCnt) ? 1 : 0);
$iBdCnt = floor(($iAllW + $iBdCntW) / $iBbCnt) + ((($iAllW + $iBdCntW) % $iBbCnt) ? 1 : 0);
if ($iBdCnt <= ($iBdExL * $iBbCnt + $i1stBdL)) {
break;
}
}
}
// Making BD
// Set for SBD
if ($iSbdSize > 0) {
for ($i = 0; $i < ($iSbdSize - 1); ++$i) {
fwrite($FILE, pack('V', $i + 1));
}
fwrite($FILE, pack('V', -2));
}
// Set for B
for ($i = 0; $i < ($iBsize - 1); ++$i) {
fwrite($FILE, pack('V', $i + $iSbdSize + 1));
}
fwrite($FILE, pack('V', -2));
// Set for PPS
for ($i = 0; $i < ($iPpsCnt - 1); ++$i) {
fwrite($FILE, pack('V', $i + $iSbdSize + $iBsize + 1));
}
fwrite($FILE, pack('V', -2));
// Set for BBD itself ( 0xFFFFFFFD : BBD)
for ($i = 0; $i < $iBdCnt; ++$i) {
fwrite($FILE, pack('V', 0xFFFFFFFD));
}
// Set for ExtraBDList
for ($i = 0; $i < $iBdExL; ++$i) {
fwrite($FILE, pack('V', 0xFFFFFFFC));
}
// Adjust for Block
if (($iAllW + $iBdCnt) % $iBbCnt) {
$iBlock = ($iBbCnt - (($iAllW + $iBdCnt) % $iBbCnt));
for ($i = 0; $i < $iBlock; ++$i) {
fwrite($FILE, pack('V', -1));
}
}
// Extra BDList
if ($iBdCnt > $i1stBdL) {
$iN = 0;
$iNb = 0;
for ($i = $i1stBdL; $i < $iBdCnt; $i++, ++$iN) {
if ($iN >= ($iBbCnt - 1)) {
$iN = 0;
++$iNb;
fwrite($FILE, pack('V', $iAll + $iBdCnt + $iNb));
}
fwrite($FILE, pack('V', $iBsize + $iSbdSize + $iPpsCnt + $i));
}
if (($iBdCnt - $i1stBdL) % ($iBbCnt - 1)) {
$iB = ($iBbCnt - 1) - (($iBdCnt - $i1stBdL) % ($iBbCnt - 1));
for ($i = 0; $i < $iB; ++$i) {
fwrite($FILE, pack('V', -1));
}
}
fwrite($FILE, pack('V', -2));
}
}
}