678 lines
20 KiB
PHP
678 lines
20 KiB
PHP
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<?php
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namespace PhpOffice\PhpSpreadsheet\Reader\Xls;
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use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
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use PhpOffice\PhpSpreadsheet\Reader\Xls;
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use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer;
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use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer\SpgrContainer;
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use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer\SpgrContainer\SpContainer;
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use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer;
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use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer;
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use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer\BSE;
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use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer\BSE\Blip;
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class Escher
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{
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const DGGCONTAINER = 0xF000;
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const BSTORECONTAINER = 0xF001;
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const DGCONTAINER = 0xF002;
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const SPGRCONTAINER = 0xF003;
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const SPCONTAINER = 0xF004;
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const DGG = 0xF006;
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const BSE = 0xF007;
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const DG = 0xF008;
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const SPGR = 0xF009;
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const SP = 0xF00A;
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const OPT = 0xF00B;
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const CLIENTTEXTBOX = 0xF00D;
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const CLIENTANCHOR = 0xF010;
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const CLIENTDATA = 0xF011;
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const BLIPJPEG = 0xF01D;
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const BLIPPNG = 0xF01E;
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const SPLITMENUCOLORS = 0xF11E;
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const TERTIARYOPT = 0xF122;
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/**
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* Escher stream data (binary).
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*
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* @var string
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*/
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private $data;
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/**
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* Size in bytes of the Escher stream data.
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*
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* @var int
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*/
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private $dataSize;
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/**
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* Current position of stream pointer in Escher stream data.
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*
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* @var int
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*/
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private $pos;
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/**
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* The object to be returned by the reader. Modified during load.
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*
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* @var BSE|BstoreContainer|DgContainer|DggContainer|\PhpOffice\PhpSpreadsheet\Shared\Escher|SpContainer|SpgrContainer
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*/
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private $object;
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/**
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* Create a new Escher instance.
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*
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* @param mixed $object
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*/
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public function __construct($object)
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{
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$this->object = $object;
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}
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/**
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* Load Escher stream data. May be a partial Escher stream.
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*
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* @param string $data
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*
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* @return BSE|BstoreContainer|DgContainer|DggContainer|\PhpOffice\PhpSpreadsheet\Shared\Escher|SpContainer|SpgrContainer
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*/
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public function load($data)
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{
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$this->data = $data;
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// total byte size of Excel data (workbook global substream + sheet substreams)
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$this->dataSize = strlen($this->data);
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$this->pos = 0;
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// Parse Escher stream
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while ($this->pos < $this->dataSize) {
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// offset: 2; size: 2: Record Type
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$fbt = Xls::getUInt2d($this->data, $this->pos + 2);
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switch ($fbt) {
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case self::DGGCONTAINER:
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$this->readDggContainer();
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break;
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case self::DGG:
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$this->readDgg();
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break;
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case self::BSTORECONTAINER:
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$this->readBstoreContainer();
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break;
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case self::BSE:
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$this->readBSE();
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break;
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case self::BLIPJPEG:
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$this->readBlipJPEG();
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break;
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case self::BLIPPNG:
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$this->readBlipPNG();
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break;
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case self::OPT:
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$this->readOPT();
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break;
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case self::TERTIARYOPT:
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$this->readTertiaryOPT();
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break;
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case self::SPLITMENUCOLORS:
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$this->readSplitMenuColors();
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break;
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case self::DGCONTAINER:
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$this->readDgContainer();
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break;
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case self::DG:
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$this->readDg();
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break;
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case self::SPGRCONTAINER:
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$this->readSpgrContainer();
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break;
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case self::SPCONTAINER:
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$this->readSpContainer();
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break;
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case self::SPGR:
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$this->readSpgr();
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break;
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case self::SP:
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$this->readSp();
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break;
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case self::CLIENTTEXTBOX:
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$this->readClientTextbox();
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break;
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case self::CLIENTANCHOR:
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$this->readClientAnchor();
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break;
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case self::CLIENTDATA:
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$this->readClientData();
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break;
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default:
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$this->readDefault();
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break;
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}
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}
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return $this->object;
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}
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/**
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* Read a generic record.
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*/
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private function readDefault(): void
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{
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// offset 0; size: 2; recVer and recInstance
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$verInstance = Xls::getUInt2d($this->data, $this->pos);
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// offset: 2; size: 2: Record Type
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$fbt = Xls::getUInt2d($this->data, $this->pos + 2);
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// bit: 0-3; mask: 0x000F; recVer
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$recVer = (0x000F & $verInstance) >> 0;
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$length = Xls::getInt4d($this->data, $this->pos + 4);
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$recordData = substr($this->data, $this->pos + 8, $length);
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// move stream pointer to next record
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$this->pos += 8 + $length;
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}
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/**
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* Read DggContainer record (Drawing Group Container).
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*/
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private function readDggContainer(): void
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{
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$length = Xls::getInt4d($this->data, $this->pos + 4);
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$recordData = substr($this->data, $this->pos + 8, $length);
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// move stream pointer to next record
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$this->pos += 8 + $length;
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// record is a container, read contents
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$dggContainer = new DggContainer();
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$this->object->setDggContainer($dggContainer);
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$reader = new self($dggContainer);
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$reader->load($recordData);
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}
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/**
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* Read Dgg record (Drawing Group).
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*/
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private function readDgg(): void
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{
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$length = Xls::getInt4d($this->data, $this->pos + 4);
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$recordData = substr($this->data, $this->pos + 8, $length);
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// move stream pointer to next record
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$this->pos += 8 + $length;
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}
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/**
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* Read BstoreContainer record (Blip Store Container).
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*/
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private function readBstoreContainer(): void
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{
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$length = Xls::getInt4d($this->data, $this->pos + 4);
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$recordData = substr($this->data, $this->pos + 8, $length);
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// move stream pointer to next record
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$this->pos += 8 + $length;
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// record is a container, read contents
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$bstoreContainer = new BstoreContainer();
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$this->object->setBstoreContainer($bstoreContainer);
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$reader = new self($bstoreContainer);
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$reader->load($recordData);
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}
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/**
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* Read BSE record.
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*/
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private function readBSE(): void
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{
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// offset: 0; size: 2; recVer and recInstance
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// bit: 4-15; mask: 0xFFF0; recInstance
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$recInstance = (0xFFF0 & Xls::getUInt2d($this->data, $this->pos)) >> 4;
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$length = Xls::getInt4d($this->data, $this->pos + 4);
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$recordData = substr($this->data, $this->pos + 8, $length);
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// move stream pointer to next record
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$this->pos += 8 + $length;
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// add BSE to BstoreContainer
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$BSE = new BSE();
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$this->object->addBSE($BSE);
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$BSE->setBLIPType($recInstance);
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// offset: 0; size: 1; btWin32 (MSOBLIPTYPE)
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$btWin32 = ord($recordData[0]);
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// offset: 1; size: 1; btWin32 (MSOBLIPTYPE)
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$btMacOS = ord($recordData[1]);
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// offset: 2; size: 16; MD4 digest
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$rgbUid = substr($recordData, 2, 16);
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// offset: 18; size: 2; tag
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$tag = Xls::getUInt2d($recordData, 18);
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// offset: 20; size: 4; size of BLIP in bytes
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$size = Xls::getInt4d($recordData, 20);
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// offset: 24; size: 4; number of references to this BLIP
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$cRef = Xls::getInt4d($recordData, 24);
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// offset: 28; size: 4; MSOFO file offset
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$foDelay = Xls::getInt4d($recordData, 28);
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// offset: 32; size: 1; unused1
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$unused1 = ord($recordData[32]);
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// offset: 33; size: 1; size of nameData in bytes (including null terminator)
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$cbName = ord($recordData[33]);
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// offset: 34; size: 1; unused2
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$unused2 = ord($recordData[34]);
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// offset: 35; size: 1; unused3
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$unused3 = ord($recordData[35]);
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// offset: 36; size: $cbName; nameData
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$nameData = substr($recordData, 36, $cbName);
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// offset: 36 + $cbName, size: var; the BLIP data
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$blipData = substr($recordData, 36 + $cbName);
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// record is a container, read contents
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$reader = new self($BSE);
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$reader->load($blipData);
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}
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/**
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* Read BlipJPEG record. Holds raw JPEG image data.
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*/
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private function readBlipJPEG(): void
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{
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// offset: 0; size: 2; recVer and recInstance
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// bit: 4-15; mask: 0xFFF0; recInstance
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$recInstance = (0xFFF0 & Xls::getUInt2d($this->data, $this->pos)) >> 4;
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$length = Xls::getInt4d($this->data, $this->pos + 4);
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$recordData = substr($this->data, $this->pos + 8, $length);
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// move stream pointer to next record
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$this->pos += 8 + $length;
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$pos = 0;
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// offset: 0; size: 16; rgbUid1 (MD4 digest of)
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$rgbUid1 = substr($recordData, 0, 16);
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$pos += 16;
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// offset: 16; size: 16; rgbUid2 (MD4 digest), only if $recInstance = 0x46B or 0x6E3
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if (in_array($recInstance, [0x046B, 0x06E3])) {
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$rgbUid2 = substr($recordData, 16, 16);
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$pos += 16;
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}
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// offset: var; size: 1; tag
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$tag = ord($recordData[$pos]);
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++$pos;
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// offset: var; size: var; the raw image data
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$data = substr($recordData, $pos);
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$blip = new Blip();
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$blip->setData($data);
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$this->object->setBlip($blip);
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}
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/**
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* Read BlipPNG record. Holds raw PNG image data.
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*/
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private function readBlipPNG(): void
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{
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// offset: 0; size: 2; recVer and recInstance
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// bit: 4-15; mask: 0xFFF0; recInstance
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$recInstance = (0xFFF0 & Xls::getUInt2d($this->data, $this->pos)) >> 4;
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$length = Xls::getInt4d($this->data, $this->pos + 4);
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$recordData = substr($this->data, $this->pos + 8, $length);
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// move stream pointer to next record
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$this->pos += 8 + $length;
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$pos = 0;
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// offset: 0; size: 16; rgbUid1 (MD4 digest of)
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$rgbUid1 = substr($recordData, 0, 16);
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$pos += 16;
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// offset: 16; size: 16; rgbUid2 (MD4 digest), only if $recInstance = 0x46B or 0x6E3
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if ($recInstance == 0x06E1) {
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$rgbUid2 = substr($recordData, 16, 16);
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$pos += 16;
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}
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// offset: var; size: 1; tag
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$tag = ord($recordData[$pos]);
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++$pos;
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// offset: var; size: var; the raw image data
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$data = substr($recordData, $pos);
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$blip = new Blip();
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$blip->setData($data);
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$this->object->setBlip($blip);
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}
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||
|
|
|
||
|
|
/**
|
||
|
|
* Read OPT record. This record may occur within DggContainer record or SpContainer.
|
||
|
|
*/
|
||
|
|
private function readOPT(): void
|
||
|
|
{
|
||
|
|
// offset: 0; size: 2; recVer and recInstance
|
||
|
|
|
||
|
|
// bit: 4-15; mask: 0xFFF0; recInstance
|
||
|
|
$recInstance = (0xFFF0 & Xls::getUInt2d($this->data, $this->pos)) >> 4;
|
||
|
|
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
|
||
|
|
$this->readOfficeArtRGFOPTE($recordData, $recInstance);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read TertiaryOPT record.
|
||
|
|
*/
|
||
|
|
private function readTertiaryOPT(): void
|
||
|
|
{
|
||
|
|
// offset: 0; size: 2; recVer and recInstance
|
||
|
|
|
||
|
|
// bit: 4-15; mask: 0xFFF0; recInstance
|
||
|
|
$recInstance = (0xFFF0 & Xls::getUInt2d($this->data, $this->pos)) >> 4;
|
||
|
|
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read SplitMenuColors record.
|
||
|
|
*/
|
||
|
|
private function readSplitMenuColors(): void
|
||
|
|
{
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read DgContainer record (Drawing Container).
|
||
|
|
*/
|
||
|
|
private function readDgContainer(): void
|
||
|
|
{
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
|
||
|
|
// record is a container, read contents
|
||
|
|
$dgContainer = new DgContainer();
|
||
|
|
$this->object->setDgContainer($dgContainer);
|
||
|
|
$reader = new self($dgContainer);
|
||
|
|
$escher = $reader->load($recordData);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read Dg record (Drawing).
|
||
|
|
*/
|
||
|
|
private function readDg(): void
|
||
|
|
{
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read SpgrContainer record (Shape Group Container).
|
||
|
|
*/
|
||
|
|
private function readSpgrContainer(): void
|
||
|
|
{
|
||
|
|
// context is either context DgContainer or SpgrContainer
|
||
|
|
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
|
||
|
|
// record is a container, read contents
|
||
|
|
$spgrContainer = new SpgrContainer();
|
||
|
|
|
||
|
|
if ($this->object instanceof DgContainer) {
|
||
|
|
// DgContainer
|
||
|
|
$this->object->setSpgrContainer($spgrContainer);
|
||
|
|
} else {
|
||
|
|
// SpgrContainer
|
||
|
|
$this->object->addChild($spgrContainer);
|
||
|
|
}
|
||
|
|
|
||
|
|
$reader = new self($spgrContainer);
|
||
|
|
$escher = $reader->load($recordData);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read SpContainer record (Shape Container).
|
||
|
|
*/
|
||
|
|
private function readSpContainer(): void
|
||
|
|
{
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// add spContainer to spgrContainer
|
||
|
|
$spContainer = new SpContainer();
|
||
|
|
$this->object->addChild($spContainer);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
|
||
|
|
// record is a container, read contents
|
||
|
|
$reader = new self($spContainer);
|
||
|
|
$escher = $reader->load($recordData);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read Spgr record (Shape Group).
|
||
|
|
*/
|
||
|
|
private function readSpgr(): void
|
||
|
|
{
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read Sp record (Shape).
|
||
|
|
*/
|
||
|
|
private function readSp(): void
|
||
|
|
{
|
||
|
|
// offset: 0; size: 2; recVer and recInstance
|
||
|
|
|
||
|
|
// bit: 4-15; mask: 0xFFF0; recInstance
|
||
|
|
$recInstance = (0xFFF0 & Xls::getUInt2d($this->data, $this->pos)) >> 4;
|
||
|
|
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read ClientTextbox record.
|
||
|
|
*/
|
||
|
|
private function readClientTextbox(): void
|
||
|
|
{
|
||
|
|
// offset: 0; size: 2; recVer and recInstance
|
||
|
|
|
||
|
|
// bit: 4-15; mask: 0xFFF0; recInstance
|
||
|
|
$recInstance = (0xFFF0 & Xls::getUInt2d($this->data, $this->pos)) >> 4;
|
||
|
|
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read ClientAnchor record. This record holds information about where the shape is anchored in worksheet.
|
||
|
|
*/
|
||
|
|
private function readClientAnchor(): void
|
||
|
|
{
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
|
||
|
|
// offset: 2; size: 2; upper-left corner column index (0-based)
|
||
|
|
$c1 = Xls::getUInt2d($recordData, 2);
|
||
|
|
|
||
|
|
// offset: 4; size: 2; upper-left corner horizontal offset in 1/1024 of column width
|
||
|
|
$startOffsetX = Xls::getUInt2d($recordData, 4);
|
||
|
|
|
||
|
|
// offset: 6; size: 2; upper-left corner row index (0-based)
|
||
|
|
$r1 = Xls::getUInt2d($recordData, 6);
|
||
|
|
|
||
|
|
// offset: 8; size: 2; upper-left corner vertical offset in 1/256 of row height
|
||
|
|
$startOffsetY = Xls::getUInt2d($recordData, 8);
|
||
|
|
|
||
|
|
// offset: 10; size: 2; bottom-right corner column index (0-based)
|
||
|
|
$c2 = Xls::getUInt2d($recordData, 10);
|
||
|
|
|
||
|
|
// offset: 12; size: 2; bottom-right corner horizontal offset in 1/1024 of column width
|
||
|
|
$endOffsetX = Xls::getUInt2d($recordData, 12);
|
||
|
|
|
||
|
|
// offset: 14; size: 2; bottom-right corner row index (0-based)
|
||
|
|
$r2 = Xls::getUInt2d($recordData, 14);
|
||
|
|
|
||
|
|
// offset: 16; size: 2; bottom-right corner vertical offset in 1/256 of row height
|
||
|
|
$endOffsetY = Xls::getUInt2d($recordData, 16);
|
||
|
|
|
||
|
|
// set the start coordinates
|
||
|
|
$this->object->setStartCoordinates(Coordinate::stringFromColumnIndex($c1 + 1) . ($r1 + 1));
|
||
|
|
|
||
|
|
// set the start offsetX
|
||
|
|
$this->object->setStartOffsetX($startOffsetX);
|
||
|
|
|
||
|
|
// set the start offsetY
|
||
|
|
$this->object->setStartOffsetY($startOffsetY);
|
||
|
|
|
||
|
|
// set the end coordinates
|
||
|
|
$this->object->setEndCoordinates(Coordinate::stringFromColumnIndex($c2 + 1) . ($r2 + 1));
|
||
|
|
|
||
|
|
// set the end offsetX
|
||
|
|
$this->object->setEndOffsetX($endOffsetX);
|
||
|
|
|
||
|
|
// set the end offsetY
|
||
|
|
$this->object->setEndOffsetY($endOffsetY);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read ClientData record.
|
||
|
|
*/
|
||
|
|
private function readClientData(): void
|
||
|
|
{
|
||
|
|
$length = Xls::getInt4d($this->data, $this->pos + 4);
|
||
|
|
$recordData = substr($this->data, $this->pos + 8, $length);
|
||
|
|
|
||
|
|
// move stream pointer to next record
|
||
|
|
$this->pos += 8 + $length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read OfficeArtRGFOPTE table of property-value pairs.
|
||
|
|
*
|
||
|
|
* @param string $data Binary data
|
||
|
|
* @param int $n Number of properties
|
||
|
|
*/
|
||
|
|
private function readOfficeArtRGFOPTE($data, $n): void
|
||
|
|
{
|
||
|
|
$splicedComplexData = substr($data, 6 * $n);
|
||
|
|
|
||
|
|
// loop through property-value pairs
|
||
|
|
for ($i = 0; $i < $n; ++$i) {
|
||
|
|
// read 6 bytes at a time
|
||
|
|
$fopte = substr($data, 6 * $i, 6);
|
||
|
|
|
||
|
|
// offset: 0; size: 2; opid
|
||
|
|
$opid = Xls::getUInt2d($fopte, 0);
|
||
|
|
|
||
|
|
// bit: 0-13; mask: 0x3FFF; opid.opid
|
||
|
|
$opidOpid = (0x3FFF & $opid) >> 0;
|
||
|
|
|
||
|
|
// bit: 14; mask 0x4000; 1 = value in op field is BLIP identifier
|
||
|
|
$opidFBid = (0x4000 & $opid) >> 14;
|
||
|
|
|
||
|
|
// bit: 15; mask 0x8000; 1 = this is a complex property, op field specifies size of complex data
|
||
|
|
$opidFComplex = (0x8000 & $opid) >> 15;
|
||
|
|
|
||
|
|
// offset: 2; size: 4; the value for this property
|
||
|
|
$op = Xls::getInt4d($fopte, 2);
|
||
|
|
|
||
|
|
if ($opidFComplex) {
|
||
|
|
$complexData = substr($splicedComplexData, 0, $op);
|
||
|
|
$splicedComplexData = substr($splicedComplexData, $op);
|
||
|
|
|
||
|
|
// we store string value with complex data
|
||
|
|
$value = $complexData;
|
||
|
|
} else {
|
||
|
|
// we store integer value
|
||
|
|
$value = $op;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->object->setOPT($opidOpid, $value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|