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<?php |
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namespace kalanis\RemoteRequest\Protocols\Fsp\Answer; |
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/** |
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* Class GetDir |
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* @package kalanis\RemoteRequest\Protocols\Fsp\Answer |
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* Process Get Directory |
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// struct RDIRENT { |
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// struct HEADER { |
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// long time; |
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// long size; |
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// byte type; |
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// } |
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// ASCIIZ name; |
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// } |
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// padding - round struct to 4 bytes block |
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* |
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* Idea for v3: Liquid headers - at first used bytes and then actual content; because it's necessary to encode long |
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* strings (like multibyte unicode) or long numbers (like 64bit date); this remove necessity for rounding |
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* Also need to send file rights and do not determine them extra - type-r-w-x |
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* And maybe sending files one-by-one. Because long name in chinese fill the string name really fast. And it's better |
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* for seeking on client side. |
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*/ |
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class GetDir extends AAnswer |
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{ |
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protected GetDir\FileInfo $singleFile; |
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protected int $position = 0; |
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/** @var GetDir\FileInfo[] */ |
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protected array $files = []; |
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protected function customInit(): void |
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{ |
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parent::customInit(); |
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$this->singleFile = new GetDir\FileInfo(''); |
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} |
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public function process(): parent |
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{ |
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$this->position = $this->answer->getFilePosition(); |
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$data = $this->answer->getContent(); |
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$dataLen = $this->answer->getDataLength(); |
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// on begining up to 12 chars and check by last one against 0x00 (NULL byte), then add by 4; read ends with overflowing the body size |
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$startSeq = 0; |
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$endSeq = 0; |
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$newPacket = true; |
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do { |
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if ($newPacket) { |
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$endSeq =+ 12; |
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$newPacket = false; |
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} |
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$record = substr($data, $startSeq, $endSeq); |
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if (chr(0) == substr($record, -1, 1)) { |
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$file = clone $this->singleFile; |
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$this->files[] = $file->setData($record); |
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$startSeq += $endSeq; |
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$endSeq = 0; |
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$newPacket = true; |
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} else { |
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$endSeq += 4; |
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} |
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} while ($startSeq < $dataLen); |
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return $this; |
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} |
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/** |
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* @return GetDir\FileInfo[] |
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*/ |
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public function getFiles(): array |
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{ |
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return $this->files; |
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} |
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} |
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alex-kalanis /
remote-request
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