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| <?php |
| /* 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 | |
| // +----------------------------------------------------------------------+ |
| // |
| // $Id: Root.php 322720 2012-01-25 12:56:57Z clockwerx $ |
| |
| |
| require_once 'OLE/PPS.php'; |
| require_once 'System.php'; |
| |
| /** |
| * Class for creating Root PPS's for OLE containers |
| * |
| * @author Xavier Noguer <xnoguer@php.net> |
| * @category Structures |
| * @package OLE |
| */ |
| class OLE_PPS_Root extends OLE_PPS |
| { |
| /** |
| * Flag to enable new logic |
| * @var bool |
| */ |
| var $new_func = true; |
| |
| /** |
| * The temporary dir for storing the OLE file |
| * @var string |
| */ |
| var $_tmp_dir; |
| |
| /** |
| * Constructor |
| * |
| * @access public |
| * @param integer $time_1st A timestamp |
| * @param integer $time_2nd A timestamp |
| */ |
| function OLE_PPS_Root($time_1st, $time_2nd, $raChild) |
| { |
| $this->_tmp_dir = System::tmpdir(); |
| $this->OLE_PPS( |
| null, |
| OLE::Asc2Ucs('Root Entry'), |
| OLE_PPS_TYPE_ROOT, |
| null, |
| null, |
| null, |
| $time_1st, |
| $time_2nd, |
| null, |
| $raChild); |
| } |
| |
| /** |
| * Sets the temp dir used for storing the OLE file |
| * |
| * @access public |
| * @param string $dir The dir to be used as temp dir |
| * @return true if given dir is valid, false otherwise |
| */ |
| function setTempDir($dir) |
| { |
| if (is_dir($dir)) { |
| $this->_tmp_dir = $dir; |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * 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. |
| * |
| * @param string $filename The name of the file where to save the OLE container |
| * @access public |
| * @return mixed true on success, PEAR_Error on failure |
| */ |
| function save($filename) |
| { |
| // Initial Setting for saving |
| $this->_BIG_BLOCK_SIZE = pow(2, |
| ((isset($this->_BIG_BLOCK_SIZE))? $this->_adjust2($this->_BIG_BLOCK_SIZE) : 9)); |
| $this->_SMALL_BLOCK_SIZE= pow(2, |
| ((isset($this->_SMALL_BLOCK_SIZE))? $this->_adjust2($this->_SMALL_BLOCK_SIZE): 6)); |
| |
| // Open temp file if we are sending output to stdout |
| if (($filename == '-') || ($filename == '')) { |
| $this->_tmp_filename = tempnam($this->_tmp_dir, "OLE_PPS_Root"); |
| $this->_FILEH_ = @fopen($this->_tmp_filename,"w+b"); |
| if ($this->_FILEH_ == false) { |
| return $this->raiseError("Can't create temporary file."); |
| } |
| } else { |
| $this->_FILEH_ = @fopen($filename, "wb"); |
| if ($this->_FILEH_ == false) { |
| return $this->raiseError("Can't open $filename. It may be in use or protected."); |
| } |
| } |
| // Make an array of PPS's (for Save) |
| $aList = array(); |
| OLE_PPS_Root::_savePpsSetPnt($aList, array($this)); |
| // calculate values for header |
| list($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, $iPPScnt); |
| // Close File, send it to stdout if necessary |
| if (($filename == '-') || ($filename == '')) { |
| fseek($this->_FILEH_, 0); |
| fpassthru($this->_FILEH_); |
| @fclose($this->_FILEH_); |
| // Delete the temporary file. |
| @unlink($this->_tmp_filename); |
| } else { |
| @fclose($this->_FILEH_); |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Calculate some numbers |
| * |
| * @access private |
| * @param array $raList Reference to an array of PPS's |
| * @return array The array of numbers |
| */ |
| function _calcSize(&$raList) |
| { |
| // Calculate Basic Setting |
| list($iSBDcnt, $iBBcnt, $iPPScnt) = array(0,0,0); |
| $iSmallLen = 0; |
| $iSBcnt = 0; |
| for ($i = 0; $i < count($raList); $i++) { |
| if ($raList[$i]->Type == OLE_PPS_TYPE_FILE) { |
| $raList[$i]->Size = $raList[$i]->_DataLen(); |
| if ($raList[$i]->Size < OLE_DATA_SIZE_SMALL) { |
| $iSBcnt += floor($raList[$i]->Size / $this->_SMALL_BLOCK_SIZE) |
| + (($raList[$i]->Size % $this->_SMALL_BLOCK_SIZE)? 1: 0); |
| } else { |
| $iBBcnt += (floor($raList[$i]->Size / $this->_BIG_BLOCK_SIZE) + |
| (($raList[$i]->Size % $this->_BIG_BLOCK_SIZE)? 1: 0)); |
| } |
| } |
| } |
| $iSmallLen = $iSBcnt * $this->_SMALL_BLOCK_SIZE; |
| $iSlCnt = floor($this->_BIG_BLOCK_SIZE / OLE_LONG_INT_SIZE); |
| $iSBDcnt = floor($iSBcnt / $iSlCnt) + (($iSBcnt % $iSlCnt)? 1:0); |
| $iBBcnt += (floor($iSmallLen / $this->_BIG_BLOCK_SIZE) + |
| (( $iSmallLen % $this->_BIG_BLOCK_SIZE)? 1: 0)); |
| $iCnt = count($raList); |
| $iBdCnt = $this->_BIG_BLOCK_SIZE / OLE_PPS_SIZE; |
| $iPPScnt = (floor($iCnt/$iBdCnt) + (($iCnt % $iBdCnt)? 1: 0)); |
| |
| return array($iSBDcnt, $iBBcnt, $iPPScnt); |
| } |
| |
| /** |
| * Helper function for caculating a magic value for block sizes |
| * |
| * @access private |
| * @param integer $i2 The argument |
| * @see save() |
| * @return integer |
| */ |
| function _adjust2($i2) |
| { |
| $iWk = log($i2)/log(2); |
| return ($iWk > floor($iWk))? floor($iWk)+1:$iWk; |
| } |
| |
| /** |
| * Save OLE header |
| * |
| * @access private |
| * @param integer $iSBDcnt |
| * @param integer $iBBcnt |
| * @param integer $iPPScnt |
| */ |
| function _saveHeader($iSBDcnt, $iBBcnt, $iPPScnt) |
| { |
| $FILE = $this->_FILEH_; |
| |
| if($this->new_func) |
| return $this->_create_header($iSBDcnt, $iBBcnt, $iPPScnt); |
| |
| // Calculate Basic Setting |
| $iBlCnt = $this->_BIG_BLOCK_SIZE / OLE_LONG_INT_SIZE; |
| $i1stBdL = ($this->_BIG_BLOCK_SIZE - 0x4C) / 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 < $i1stBdL) { |
| for ($j = 0; $j < ($i1stBdL-$i); $j++) { |
| fwrite($FILE, (pack("V", -1))); |
| } |
| } |
| } |
| |
| /** |
| * Saving big data (PPS's with data bigger than OLE_DATA_SIZE_SMALL) |
| * |
| * @access private |
| * @param integer $iStBlk |
| * @param array &$raList Reference to array of PPS's |
| */ |
| function _saveBigData($iStBlk, &$raList) |
| { |
| $FILE = $this->_FILEH_; |
| |
| // cycle through PPS's |
| for ($i = 0; $i < count($raList); $i++) { |
| if ($raList[$i]->Type != OLE_PPS_TYPE_DIR) { |
| $raList[$i]->Size = $raList[$i]->_DataLen(); |
| if (($raList[$i]->Size >= OLE_DATA_SIZE_SMALL) || |
| (($raList[$i]->Type == OLE_PPS_TYPE_ROOT) && isset($raList[$i]->_data))) |
| { |
| // Write Data |
| if (isset($raList[$i]->_PPS_FILE)) { |
| $iLen = 0; |
| fseek($raList[$i]->_PPS_FILE, 0); // To The Top |
| while($sBuff = fread($raList[$i]->_PPS_FILE, 4096)) { |
| $iLen += strlen($sBuff); |
| fwrite($FILE, $sBuff); |
| } |
| } else { |
| fwrite($FILE, $raList[$i]->_data); |
| } |
| |
| if ($raList[$i]->Size % $this->_BIG_BLOCK_SIZE) { |
| for ($j = 0; $j < ($this->_BIG_BLOCK_SIZE - ($raList[$i]->Size % $this->_BIG_BLOCK_SIZE)); $j++) { |
| fwrite($FILE, "\x00"); |
| } |
| } |
| // Set For PPS |
| $raList[$i]->_StartBlock = $iStBlk; |
| $iStBlk += |
| (floor($raList[$i]->Size / $this->_BIG_BLOCK_SIZE) + |
| (($raList[$i]->Size % $this->_BIG_BLOCK_SIZE)? 1: 0)); |
| } |
| // Close file for each PPS, and unlink it |
| if (isset($raList[$i]->_PPS_FILE)) { |
| @fclose($raList[$i]->_PPS_FILE); |
| $raList[$i]->_PPS_FILE = null; |
| @unlink($raList[$i]->_tmp_filename); |
| } |
| } |
| } |
| } |
| |
| /** |
| * get small data (PPS's with data smaller than OLE_DATA_SIZE_SMALL) |
| * |
| * @access private |
| * @param array &$raList Reference to array of PPS's |
| */ |
| function _makeSmallData(&$raList) |
| { |
| $sRes = ''; |
| $FILE = $this->_FILEH_; |
| $iSmBlk = 0; |
| |
| for ($i = 0; $i < count($raList); $i++) { |
| // Make SBD, small data string |
| if ($raList[$i]->Type == OLE_PPS_TYPE_FILE) { |
| if ($raList[$i]->Size <= 0) { |
| continue; |
| } |
| if ($raList[$i]->Size < OLE_DATA_SIZE_SMALL) { |
| $iSmbCnt = floor($raList[$i]->Size / $this->_SMALL_BLOCK_SIZE) |
| + (($raList[$i]->Size % $this->_SMALL_BLOCK_SIZE)? 1: 0); |
| // Add to SBD |
| for ($j = 0; $j < ($iSmbCnt-1); $j++) { |
| fwrite($FILE, pack("V", $j+$iSmBlk+1)); |
| } |
| fwrite($FILE, pack("V", -2)); |
| |
| // Add to Data String(this will be written for RootEntry) |
| if ($raList[$i]->_PPS_FILE) { |
| fseek($raList[$i]->_PPS_FILE, 0); // To The Top |
| while ($sBuff = fread($raList[$i]->_PPS_FILE, 4096)) { |
| $sRes .= $sBuff; |
| } |
| } else { |
| $sRes .= $raList[$i]->_data; |
| } |
| if ($raList[$i]->Size % $this->_SMALL_BLOCK_SIZE) { |
| for ($j = 0; $j < ($this->_SMALL_BLOCK_SIZE - ($raList[$i]->Size % $this->_SMALL_BLOCK_SIZE)); $j++) { |
| $sRes .= "\x00"; |
| } |
| } |
| // Set for PPS |
| $raList[$i]->_StartBlock = $iSmBlk; |
| $iSmBlk += $iSmbCnt; |
| } |
| } |
| } |
| $iSbCnt = floor($this->_BIG_BLOCK_SIZE / OLE_LONG_INT_SIZE); |
| if ($iSmBlk % $iSbCnt) { |
| for ($i = 0; $i < ($iSbCnt - ($iSmBlk % $iSbCnt)); $i++) { |
| fwrite($FILE, pack("V", -1)); |
| } |
| } |
| return $sRes; |
| } |
| |
| /** |
| * Saves all the PPS's WKs |
| * |
| * @access private |
| * @param array $raList Reference to an array with all PPS's |
| */ |
| function _savePps(&$raList) |
| { |
| // Save each PPS WK |
| for ($i = 0; $i < count($raList); $i++) { |
| fwrite($this->_FILEH_, $raList[$i]->_getPpsWk()); |
| } |
| // Adjust for Block |
| $iCnt = count($raList); |
| $iBCnt = $this->_BIG_BLOCK_SIZE / OLE_PPS_SIZE; |
| if ($iCnt % $iBCnt) { |
| for ($i = 0; $i < (($iBCnt - ($iCnt % $iBCnt)) * OLE_PPS_SIZE); $i++) { |
| fwrite($this->_FILEH_, "\x00"); |
| } |
| } |
| } |
| |
| /** |
| * Saving Big Block Depot |
| * |
| * @access private |
| * @param integer $iSbdSize |
| * @param integer $iBsize |
| * @param integer $iPpsCnt |
| */ |
| function _saveBbd($iSbdSize, $iBsize, $iPpsCnt) |
| { |
| if($this->new_func) |
| return $this->_create_big_block_chain($iSbdSize, $iBsize, $iPpsCnt); |
| |
| $FILE = $this->_FILEH_; |
| // Calculate Basic Setting |
| $iBbCnt = $this->_BIG_BLOCK_SIZE / OLE_LONG_INT_SIZE; |
| $i1stBdL = ($this->_BIG_BLOCK_SIZE - 0x4C) / 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) % $iBbCnt) { |
| for ($i = 0; $i < ($iBbCnt - (($iAllW + $iBdCnt) % $iBbCnt)); $i++) { |
| fwrite($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) % ($iBbCnt-1)) { |
| for ($i = 0; $i < (($iBbCnt - 1) - (($iBdCnt - $i1stBdL) % ($iBbCnt - 1))); $i++) { |
| fwrite($FILE, pack("V", -1)); |
| } |
| } |
| fwrite($FILE, pack("V", -2)); |
| } |
| } |
| |
| |
| |
| /** |
| * New method to store Bigblock chain |
| * |
| * @access private |
| * @param integer $num_sb_blocks - number of Smallblock depot blocks |
| * @param integer $num_bb_blocks - number of Bigblock depot blocks |
| * @param integer $num_pps_blocks - number of PropertySetStorage blocks |
| */ |
| function _create_big_block_chain($num_sb_blocks, $num_bb_blocks, $num_pps_blocks) |
| { |
| $FILE = $this->_FILEH_; |
| |
| $bbd_info = $this->_calculate_big_block_chain($num_sb_blocks, $num_bb_blocks, $num_pps_blocks); |
| |
| $data = ""; |
| |
| if($num_sb_blocks > 0) |
| { |
| for($i = 0; $i<($num_sb_blocks-1); $i++) |
| $data .= pack("V", $i+1); |
| $data .= pack("V", -2); |
| } |
| |
| for($i = 0; $i<($num_bb_blocks-1); $i++) |
| $data .= pack("V", $i + $num_sb_blocks + 1); |
| $data .= pack("V", -2); |
| |
| for($i = 0; $i<($num_pps_blocks-1); $i++) |
| $data .= pack("V", $i + $num_sb_blocks + $num_bb_blocks + 1); |
| $data .= pack("V", -2); |
| |
| for($i = 0; $i < $bbd_info["0xFFFFFFFD_blockchain_entries"]; $i++) |
| $data .= pack("V", 0xFFFFFFFD); |
| |
| for($i = 0; $i < $bbd_info["0xFFFFFFFC_blockchain_entries"]; $i++) |
| $data .= pack("V", 0xFFFFFFFC); |
| |
| // Adjust for Block |
| $all_entries = $num_sb_blocks + $num_bb_blocks + $num_pps_blocks + $bbd_info["0xFFFFFFFD_blockchain_entries"] + $bbd_info["0xFFFFFFFC_blockchain_entries"]; |
| if($all_entries % $bbd_info["entries_per_block"]) |
| { |
| $rest = $bbd_info["entries_per_block"] - ($all_entries % $bbd_info["entries_per_block"]); |
| for($i = 0; $i < $rest; $i++) |
| $data .= pack("V", -1); |
| } |
| |
| // Extra BDList |
| if($bbd_info["blockchain_list_entries"] > $bbd_info["header_blockchain_list_entries"]) |
| { |
| $iN=0; |
| $iNb=0; |
| for($i = $bbd_info["header_blockchain_list_entries"]; $i < $bbd_info["blockchain_list_entries"]; $i++, $iN++) |
| { |
| if($iN >= ($bbd_info["entries_per_block"]-1)) |
| { |
| $iN = 0; |
| $iNb++; |
| $data .= pack("V", $num_sb_blocks + $num_bb_blocks + $num_pps_blocks + $bbd_info["0xFFFFFFFD_blockchain_entries"] + $iNb); |
| } |
| |
| $data .= pack("V", $num_bb_blocks + $num_sb_blocks + $num_pps_blocks + $i); |
| } |
| |
| $all_entries = $bbd_info["blockchain_list_entries"] - $bbd_info["header_blockchain_list_entries"]; |
| if(($all_entries % ($bbd_info["entries_per_block"] - 1))) |
| { |
| $rest = ($bbd_info["entries_per_block"] - 1) - ($all_entries % ($bbd_info["entries_per_block"] - 1)); |
| for($i = 0; $i < $rest; $i++) |
| $data .= pack("V", -1); |
| } |
| |
| $data .= pack("V", -2); |
| } |
| |
| /* |
| $this->dump($data, 0, strlen($data)); |
| die; |
| */ |
| |
| fwrite($FILE, $data); |
| } |
| |
| /** |
| * New method to store Header |
| * |
| * @access private |
| * @param integer $num_sb_blocks - number of Smallblock depot blocks |
| * @param integer $num_bb_blocks - number of Bigblock depot blocks |
| * @param integer $num_pps_blocks - number of PropertySetStorage blocks |
| */ |
| function _create_header($num_sb_blocks, $num_bb_blocks, $num_pps_blocks) |
| { |
| $FILE = $this->_FILEH_; |
| |
| $bbd_info = $this->_calculate_big_block_chain($num_sb_blocks, $num_bb_blocks, $num_pps_blocks); |
| |
| // Save Header |
| fwrite($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", $bbd_info["blockchain_list_entries"]) |
| . pack("V", $num_sb_blocks + $num_bb_blocks) //ROOT START |
| . pack("V", 0) |
| . pack("V", 0x1000) |
| ); |
| |
| //Small Block Depot |
| if($num_sb_blocks > 0) |
| fwrite($FILE, pack("V", 0)); |
| else |
| fwrite($FILE, pack("V", -2)); |
| |
| fwrite($FILE, pack("V", 1)); |
| |
| // Extra BDList Start, Count |
| if($bbd_info["blockchain_list_entries"] < $bbd_info["header_blockchain_list_entries"]) |
| { |
| fwrite($FILE, |
| pack("V", -2). // Extra BDList Start |
| pack("V", 0) // Extra BDList Count |
| ); |
| } |
| else |
| { |
| fwrite($FILE, pack("V", $num_sb_blocks + $num_bb_blocks + $num_pps_blocks + $bbd_info["0xFFFFFFFD_blockchain_entries"]) . pack("V", $bbd_info["0xFFFFFFFC_blockchain_entries"])); |
| } |
| |
| // BDList |
| for ($i=0; $i < $bbd_info["header_blockchain_list_entries"] and $i < $bbd_info["blockchain_list_entries"]; $i++) |
| { |
| fwrite($FILE, pack("V", $num_bb_blocks + $num_sb_blocks + $num_pps_blocks + $i)); |
| } |
| |
| if($i < $bbd_info["header_blockchain_list_entries"]) |
| { |
| for($j = 0; $j < ($bbd_info["header_blockchain_list_entries"]-$i); $j++) |
| { |
| fwrite($FILE, (pack("V", -1))); |
| } |
| } |
| } |
| |
| /** |
| * New method to calculate Bigblock chain |
| * |
| * @access private |
| * @param integer $num_sb_blocks - number of Smallblock depot blocks |
| * @param integer $num_bb_blocks - number of Bigblock depot blocks |
| * @param integer $num_pps_blocks - number of PropertySetStorage blocks |
| */ |
| function _calculate_big_block_chain($num_sb_blocks, $num_bb_blocks, $num_pps_blocks) |
| { |
| $bbd_info["entries_per_block"] = $this->_BIG_BLOCK_SIZE / OLE_LONG_INT_SIZE; |
| $bbd_info["header_blockchain_list_entries"] = ($this->_BIG_BLOCK_SIZE - 0x4C) / OLE_LONG_INT_SIZE; |
| $bbd_info["blockchain_entries"] = $num_sb_blocks + $num_bb_blocks + $num_pps_blocks; |
| $bbd_info["0xFFFFFFFD_blockchain_entries"] = $this->get_number_of_pointer_blocks($bbd_info["blockchain_entries"]); |
| $bbd_info["blockchain_list_entries"] = $this->get_number_of_pointer_blocks($bbd_info["blockchain_entries"] + $bbd_info["0xFFFFFFFD_blockchain_entries"]); |
| |
| // do some magic |
| $bbd_info["ext_blockchain_list_entries"] = 0; |
| $bbd_info["0xFFFFFFFC_blockchain_entries"] = 0; |
| if($bbd_info["blockchain_list_entries"] > $bbd_info["header_blockchain_list_entries"]) |
| { |
| do |
| { |
| $bbd_info["blockchain_list_entries"] = $this->get_number_of_pointer_blocks($bbd_info["blockchain_entries"] + $bbd_info["0xFFFFFFFD_blockchain_entries"] + $bbd_info["0xFFFFFFFC_blockchain_entries"]); |
| $bbd_info["ext_blockchain_list_entries"] = $bbd_info["blockchain_list_entries"] - $bbd_info["header_blockchain_list_entries"]; |
| $bbd_info["0xFFFFFFFC_blockchain_entries"] = $this->get_number_of_pointer_blocks($bbd_info["ext_blockchain_list_entries"]); |
| $bbd_info["0xFFFFFFFD_blockchain_entries"] = $this->get_number_of_pointer_blocks($num_sb_blocks + $num_bb_blocks + $num_pps_blocks + $bbd_info["0xFFFFFFFD_blockchain_entries"] + $bbd_info["0xFFFFFFFC_blockchain_entries"]); |
| } |
| while($bbd_info["blockchain_list_entries"] < $this->get_number_of_pointer_blocks($bbd_info["blockchain_entries"] + $bbd_info["0xFFFFFFFD_blockchain_entries"] + $bbd_info["0xFFFFFFFC_blockchain_entries"])); |
| } |
| |
| return $bbd_info; |
| } |
| |
| /** |
| * Calculates number of pointer blocks |
| * |
| * @access public |
| * @param integer $num_pointers - number of pointers |
| */ |
| function get_number_of_pointer_blocks($num_pointers) |
| { |
| $pointers_per_block = $this->_BIG_BLOCK_SIZE / OLE_LONG_INT_SIZE; |
| |
| return floor($num_pointers / $pointers_per_block) + (($num_pointers % $pointers_per_block)? 1: 0); |
| } |
| |
| /** |
| * Support method for some hexdumping |
| * |
| * @access public |
| * @param string $data - Binary data |
| * @param integer $from - Start offset of data to dump |
| * @param integer $to - Target offset of data to dump |
| */ |
| function dump($data, $from, $to) |
| { |
| $chars = array(); |
| $i = 0; |
| for($i = $from; $i < $to; $i++) |
| { |
| if(sizeof($chars) == 16) |
| { |
| printf("%08X (% 12d) |", $i-16, $i-16); |
| foreach($chars as $char) |
| printf(" %02X", $char); |
| print " |\n"; |
| |
| $chars = array(); |
| } |
| |
| $chars[] = ord($data[$i]); |
| } |
| |
| if(sizeof($chars)) |
| { |
| printf("%08X (% 12d) |", $i-sizeof($chars), $i-sizeof($chars)); |
| foreach($chars as $char) |
| printf(" %02X", $char); |
| print " |\n"; |
| |
| $chars = array(); |
| } |
| } |
| } |
| ?> |