1<?php 2/* vim: set expandtab tabstop=4 shiftwidth=4: */ 3// +----------------------------------------------------------------------+ 4// | PHP Version 4 | 5// +----------------------------------------------------------------------+ 6// | Copyright (c) 1997-2002 The PHP Group | 7// +----------------------------------------------------------------------+ 8// | This source file is subject to version 2.02 of the PHP license, | 9// | that is bundled with this package in the file LICENSE, and is | 10// | available at through the world-wide-web at | 11// | http://www.php.net/license/2_02.txt. | 12// | If you did not receive a copy of the PHP license and are unable to | 13// | obtain it through the world-wide-web, please send a note to | 14// | license@php.net so we can mail you a copy immediately. | 15// +----------------------------------------------------------------------+ 16// | Author: Xavier Noguer <xnoguer@php.net> | 17// | Based on OLE::Storage_Lite by Kawai, Takanori | 18// +----------------------------------------------------------------------+ 19// 20// $Id$ 21 22 23if (!class_exists('PEAR')) { 24 require_once 'PEAR.php'; 25} 26 27if (!class_exists('OLE')) { 28 require_once 'OLE.php'; 29} 30 31/** 32* Class for creating PPS's for OLE containers 33* 34* @author Xavier Noguer <xnoguer@php.net> 35* @category Structures 36* @package OLE 37*/ 38class OLE_PPS extends PEAR 39{ 40 /** 41 * The PPS index 42 * @var integer 43 */ 44 var $No; 45 46 /** 47 * The PPS name (in Unicode) 48 * @var string 49 */ 50 var $Name; 51 52 /** 53 * The PPS type. Dir, Root or File 54 * @var integer 55 */ 56 var $Type; 57 58 /** 59 * The index of the previous PPS 60 * @var integer 61 */ 62 var $PrevPps; 63 64 /** 65 * The index of the next PPS 66 * @var integer 67 */ 68 var $NextPps; 69 70 /** 71 * The index of it's first child if this is a Dir or Root PPS 72 * @var integer 73 */ 74 var $DirPps; 75 76 /** 77 * A timestamp 78 * @var integer 79 */ 80 var $Time1st; 81 82 /** 83 * A timestamp 84 * @var integer 85 */ 86 var $Time2nd; 87 88 /** 89 * Starting block (small or big) for this PPS's data inside the container 90 * @var integer 91 */ 92 var $_StartBlock; 93 94 /** 95 * The size of the PPS's data (in bytes) 96 * @var integer 97 */ 98 var $Size; 99 100 /** 101 * The PPS's data (only used if it's not using a temporary file) 102 * @var string 103 */ 104 var $_data; 105 106 /** 107 * Array of child PPS's (only used by Root and Dir PPS's) 108 * @var array 109 */ 110 var $children = array(); 111 112 /** 113 * Pointer to OLE container 114 * @var OLE 115 */ 116 var $ole; 117 118 /** 119 * The constructor 120 * 121 * @access public 122 * @param integer $No The PPS index 123 * @param string $name The PPS name 124 * @param integer $type The PPS type. Dir, Root or File 125 * @param integer $prev The index of the previous PPS 126 * @param integer $next The index of the next PPS 127 * @param integer $dir The index of it's first child if this is a Dir or Root PPS 128 * @param integer $time_1st A timestamp 129 * @param integer $time_2nd A timestamp 130 * @param string $data The (usually binary) source data of the PPS 131 * @param array $children Array containing children PPS for this PPS 132 */ 133 function __construct($No, $name, $type, $prev, $next, $dir, $time_1st, $time_2nd, $data, $children) 134 { 135 $this->No = $No; 136 $this->Name = $name; 137 $this->Type = $type; 138 $this->PrevPps = $prev; 139 $this->NextPps = $next; 140 $this->DirPps = $dir; 141 $this->Time1st = $time_1st; 142 $this->Time2nd = $time_2nd; 143 $this->_data = $data; 144 $this->children = $children; 145 if ($data != '') { 146 $this->Size = strlen($data); 147 } else { 148 $this->Size = 0; 149 } 150 } 151 152 /** 153 * Returns the amount of data saved for this PPS 154 * 155 * @access private 156 * @return integer The amount of data (in bytes) 157 */ 158 function _DataLen() 159 { 160 if (!isset($this->_data)) { 161 return 0; 162 } 163 if (isset($this->_PPS_FILE)) { 164 fseek($this->_PPS_FILE, 0); 165 $stats = fstat($this->_PPS_FILE); 166 return $stats[7]; 167 } else { 168 return strlen($this->_data); 169 } 170 } 171 172 /** 173 * Returns a string with the PPS's WK (What is a WK?) 174 * 175 * @access private 176 * @return string The binary string 177 */ 178 function _getPpsWk() 179 { 180 $ret = $this->Name; 181 for ($i = 0; $i < (64 - strlen($this->Name)); $i++) { 182 $ret .= "\x00"; 183 } 184 $ret .= pack("v", strlen($this->Name) + 2) // 66 185 . pack("c", $this->Type) // 67 186 . pack("c", 0x00) //UK // 68 187 . pack("V", $this->PrevPps) //Prev // 72 188 . pack("V", $this->NextPps) //Next // 76 189 . pack("V", $this->DirPps) //Dir // 80 190 . "\x00\x09\x02\x00" // 84 191 . "\x00\x00\x00\x00" // 88 192 . "\xc0\x00\x00\x00" // 92 193 . "\x00\x00\x00\x46" // 96 // Seems to be ok only for Root 194 . "\x00\x00\x00\x00" // 100 195 . OLE::LocalDate2OLE($this->Time1st) // 108 196 . OLE::LocalDate2OLE($this->Time2nd) // 116 197 . pack("V", isset($this->_StartBlock)? 198 $this->_StartBlock:0) // 120 199 . pack("V", $this->Size) // 124 200 . pack("V", 0); // 128 201 return $ret; 202 } 203 204 /** 205 * Updates index and pointers to previous, next and children PPS's for this 206 * PPS. I don't think it'll work with Dir PPS's. 207 * 208 * @access private 209 * @param array &$pps_array Reference to the array of PPS's for the whole OLE 210 * container 211 * @return integer The index for this PPS 212 */ 213 static function _savePpsSetPnt(&$raList, $to_save, $depth = 0) 214 { 215 if ( !is_array($to_save) || (count($to_save) == 0) ) { 216 return 0xFFFFFFFF; 217 } 218 elseif( count($to_save) == 1 ) { 219 $cnt = count($raList); 220 // If the first entry, it's the root... Don't clone it! 221 $raList[$cnt] = ( $depth == 0 ) ? $to_save[0] : clone $to_save[0]; 222 $raList[$cnt]->No = $cnt; 223 $raList[$cnt]->PrevPps = 0xFFFFFFFF; 224 $raList[$cnt]->NextPps = 0xFFFFFFFF; 225 $raList[$cnt]->DirPps = self::_savePpsSetPnt($raList, @$raList[$cnt]->children, $depth++); 226 return $cnt; 227 } 228 else { 229 $iPos = floor(count($to_save) / 2); 230 $aPrev = array_slice($to_save, 0, $iPos); 231 $aNext = array_slice($to_save, $iPos + 1); 232 233 $cnt = count($raList); 234 // If the first entry, it's the root... Don't clone it! 235 $raList[$cnt] = ( $depth == 0 ) ? $to_save[$iPos] : clone $to_save[$iPos]; 236 $raList[$cnt]->No = $cnt; 237 $raList[$cnt]->PrevPps = self::_savePpsSetPnt($raList, $aPrev, $depth++); 238 $raList[$cnt]->NextPps = self::_savePpsSetPnt($raList, $aNext, $depth++); 239 $raList[$cnt]->DirPps = self::_savePpsSetPnt($raList, @$raList[$cnt]->children, $depth++); 240 241 return $cnt; 242 } 243 } 244} 245?> 246