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<?php |
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/** |
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* Class PACKReaderAbstract |
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* |
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* @filesource PACKReaderAbstract.php |
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* @created 27.04.2019 |
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* @package codemasher\WildstarDB\Archive |
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* @author smiley <[email protected]> |
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* @copyright 2019 smiley |
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* @license MIT |
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*/ |
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namespace codemasher\WildstarDB\Archive; |
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use chillerlan\Database\Database; |
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use codemasher\WildstarDB\WSDBException; |
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use function fread, fseek, unpack; |
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/** |
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* @property array $blocktable |
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*/ |
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abstract class PACKReaderAbstract extends ReaderAbstract{ |
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/** |
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* 4+4+512+8+8+8+4+4+4+8 = 564 bytes |
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* |
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* @var string |
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* @internal |
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*/ |
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protected $FORMAT_HEADER = 'a4Signature/LVersion/x512/QFilesize/x8/QBlockTableOffset/LBlockCount/x4/LRootInfoIndex/x8'; |
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/** |
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* @var int |
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* @internal |
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*/ |
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protected $headerSize = 564; |
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/** |
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* @var array |
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*/ |
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protected $blocktable = []; |
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/** |
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* @return void |
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* @throws \codemasher\WildstarDB\WSDBException |
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*/ |
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abstract protected function readData():void; |
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/** |
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* @param string $filename |
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* |
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* @return \codemasher\WildstarDB\Archive\ReaderInterface |
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* @throws \codemasher\WildstarDB\WSDBException |
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*/ |
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public function read(string $filename):ReaderInterface{ |
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$this->loadFile($filename); |
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$this->blocktable = []; |
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if($this->header['Signature'] !== "\x4b\x43\x41\x50"){ // KCAP |
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throw new WSDBException('invalid PACK'); |
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} |
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// read the block info table |
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fseek($this->fh, $this->header['BlockTableOffset']); |
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for($i = 0; $i < $this->header['BlockCount']; $i++){ |
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$this->blocktable[$i] = unpack('QOffset/QSize', fread($this->fh, 16)); |
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} |
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// seek forward to the root index block for convenience |
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fseek($this->fh, $this->blocktable[$this->header['RootInfoIndex']]['Offset']); |
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$this->readData(); |
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return $this; |
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} |
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/** |
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* @param string|null $file |
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* @param string $delimiter |
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* @param string $enclosure |
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* @param string $escapeChar |
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* |
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* @return string |
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* @throws \codemasher\WildstarDB\WSDBException |
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*/ |
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public function toCSV(string $file = null, string $delimiter = ',', string $enclosure = '"', string $escapeChar = '\\'):string{ |
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// @todo |
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throw new WSDBException('not implemented'); |
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# return ''; |
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} |
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/** |
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* ugh! |
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* |
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* @param string|null $file |
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* |
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* @return string |
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* @throws \codemasher\WildstarDB\WSDBException |
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*/ |
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public function toXML(string $file = null):string{ |
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// @todo |
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throw new WSDBException('not implemented'); |
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# return ''; |
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} |
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/** |
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* @param \chillerlan\Database\Database $db |
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* |
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* @return \codemasher\WildstarDB\Archive\ReaderInterface |
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* @throws \codemasher\WildstarDB\WSDBException |
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*/ |
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public function toDB(Database $db):ReaderInterface{ |
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// @todo |
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throw new WSDBException('not implemented'); |
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# return $this; |
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} |
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} |
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codemasher /
wildstar-database
