审查视图

simplewind/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Shared/OLE/PPS.php 7.0 KB
景龙 authored
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238
<?php

namespace PhpOffice\PhpSpreadsheet\Shared\OLE;

// 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;

/**
 * Class for creating PPS's for OLE containers.
 *
 * @author   Xavier Noguer <xnoguer@php.net>
 *
 * @category PhpSpreadsheet
 */
class PPS
{
    /**
     * The PPS index.
     *
     * @var int
     */
    public $No;

    /**
     * The PPS name (in Unicode).
     *
     * @var string
     */
    public $Name;

    /**
     * The PPS type. Dir, Root or File.
     *
     * @var int
     */
    public $Type;

    /**
     * The index of the previous PPS.
     *
     * @var int
     */
    public $PrevPps;

    /**
     * The index of the next PPS.
     *
     * @var int
     */
    public $NextPps;

    /**
     * The index of it's first child if this is a Dir or Root PPS.
     *
     * @var int
     */
    public $DirPps;

    /**
     * A timestamp.
     *
     * @var int
     */
    public $Time1st;

    /**
     * A timestamp.
     *
     * @var int
     */
    public $Time2nd;

    /**
     * Starting block (small or big) for this PPS's data  inside the container.
     *
     * @var int
     */
    public $startBlock;

    /**
     * The size of the PPS's data (in bytes).
     *
     * @var int
     */
    public $Size;

    /**
     * The PPS's data (only used if it's not using a temporary file).
     *
     * @var string
     */
    public $_data;

    /**
     * Array of child PPS's (only used by Root and Dir PPS's).
     *
     * @var array
     */
    public $children = [];

    /**
     * Pointer to OLE container.
     *
     * @var OLE
     */
    public $ole;

    /**
     * The constructor.
     *
     * @param int $No The PPS index
     * @param string $name The PPS name
     * @param int $type The PPS type. Dir, Root or File
     * @param int $prev The index of the previous PPS
     * @param int $next The index of the next PPS
     * @param int $dir The index of it's first child if this is a Dir or Root PPS
     * @param int $time_1st A timestamp
     * @param int $time_2nd A timestamp
     * @param string $data The (usually binary) source data of the PPS
     * @param array $children Array containing children PPS for this PPS
     */
    public function __construct($No, $name, $type, $prev, $next, $dir, $time_1st, $time_2nd, $data, $children)
    {
        $this->No = $No;
        $this->Name = $name;
        $this->Type = $type;
        $this->PrevPps = $prev;
        $this->NextPps = $next;
        $this->DirPps = $dir;
        $this->Time1st = $time_1st;
        $this->Time2nd = $time_2nd;
        $this->_data = $data;
        $this->children = $children;
        if ($data != '') {
            $this->Size = strlen($data);
        } else {
            $this->Size = 0;
        }
    }

    /**
     * Returns the amount of data saved for this PPS.
     *
     * @return int The amount of data (in bytes)
     */
    public function getDataLen()
    {
        if (!isset($this->_data)) {
            return 0;
        }

        return strlen($this->_data);
    }

    /**
     * Returns a string with the PPS's WK (What is a WK?).
     *
     * @return string The binary string
     */
    public function _getPpsWk()
    {
        $ret = str_pad($this->Name, 64, "\x00");

        $ret .= pack('v', strlen($this->Name) + 2)  // 66
            . pack('c', $this->Type)              // 67
            . pack('c', 0x00) //UK                // 68
            . pack('V', $this->PrevPps) //Prev    // 72
            . pack('V', $this->NextPps) //Next    // 76
            . pack('V', $this->DirPps)  //Dir     // 80
            . "\x00\x09\x02\x00"                  // 84
            . "\x00\x00\x00\x00"                  // 88
            . "\xc0\x00\x00\x00"                  // 92
            . "\x00\x00\x00\x46"                  // 96 // Seems to be ok only for Root
            . "\x00\x00\x00\x00"                  // 100
            . OLE::localDateToOLE($this->Time1st)          // 108
            . OLE::localDateToOLE($this->Time2nd)          // 116
            . pack('V', isset($this->startBlock) ? $this->startBlock : 0)  // 120
            . pack('V', $this->Size)               // 124
            . pack('V', 0); // 128
        return $ret;
    }

    /**
     * Updates index and pointers to previous, next and children PPS's for this
     * PPS. I don't think it'll work with Dir PPS's.
     *
     * @param array &$raList Reference to the array of PPS's for the whole OLE
     *                          container
     * @param mixed $to_save
     * @param mixed $depth
     *
     * @return int The index for this PPS
     */
    public static function _savePpsSetPnt(&$raList, $to_save, $depth = 0)
    {
        if (!is_array($to_save) || (empty($to_save))) {
            return 0xFFFFFFFF;
        } elseif (count($to_save) == 1) {
            $cnt = count($raList);
            // If the first entry, it's the root... Don't clone it!
            $raList[$cnt] = ($depth == 0) ? $to_save[0] : clone $to_save[0];
            $raList[$cnt]->No = $cnt;
            $raList[$cnt]->PrevPps = 0xFFFFFFFF;
            $raList[$cnt]->NextPps = 0xFFFFFFFF;
            $raList[$cnt]->DirPps = self::_savePpsSetPnt($raList, @$raList[$cnt]->children, $depth++);
        } else {
            $iPos = floor(count($to_save) / 2);
            $aPrev = array_slice($to_save, 0, $iPos);
            $aNext = array_slice($to_save, $iPos + 1);
            $cnt = count($raList);
            // If the first entry, it's the root... Don't clone it!
            $raList[$cnt] = ($depth == 0) ? $to_save[$iPos] : clone $to_save[$iPos];
            $raList[$cnt]->No = $cnt;
            $raList[$cnt]->PrevPps = self::_savePpsSetPnt($raList, $aPrev, $depth++);
            $raList[$cnt]->NextPps = self::_savePpsSetPnt($raList, $aNext, $depth++);
            $raList[$cnt]->DirPps = self::_savePpsSetPnt($raList, @$raList[$cnt]->children, $depth++);
        }

        return $cnt;
    }
}