101 lines
2.7 KiB
PHP
101 lines
2.7 KiB
PHP
<?php
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namespace App\Classes\FTN\Packet;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Collection;
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use App\Classes\FTN\Packet;
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use App\Models\Setup;
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/**
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* FTS-0001 http://ftsc.org/docs/fts-0001.016
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*
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* Commonly known as Type 2 packets
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* Supports 3D addresses
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*/
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final class FTS1 extends Packet
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{
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protected const HEADER = [
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'onode' => [0x00,'v',2], // Orig Node
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'dnode' => [0x02,'v',2], // Dest Node
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'y' => [0x04,'v',2], // Year
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'm' => [0x06,'v',2], // Month
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'd' => [0x08,'v',2], // Day
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'H' => [0x0a,'v',2], // Hour
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'M' => [0x0c,'v',2], // Minute
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'S' => [0x0e,'v',2], // Second
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'baud' => [0x10,'v',2], // Baud
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'type' => [0x12,'v',2], // Packet Version (should be 2)
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'onet' => [0x14,'v',2], // Orig Net
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'dnet' => [0x16,'v',2], // Dest Net
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'prodcode' => [0x18,'C',1], // Product Code
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'serial' => [0x19,'C',1], // Serial Number
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'password' => [0x1a,'a8',8], // Packet Password
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'ozone' => [0x22,'v',2], // Orig Zone
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'dzone' => [0x24,'v',2], // Dest Zone
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'reserved' => [0x26,'a20',20], // Reserved
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];
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public const TYPE = '2';
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public function __get($key)
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{
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switch ($key) {
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case 'product':
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return Arr::get($this->header,'prodcode');
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case 'software_ver':
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return 'N/A';
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default:
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return parent::__get($key);
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}
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}
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/**
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* Create our message packet header
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*/
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protected function header(Collection $msgs): string
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{
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$oldest = $this->messages->sortBy('datetime')->last();
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return pack(collect(self::HEADER)->pluck(1)->join(''),
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$this->fftn_p->node_id, // Orig Node
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$this->tftn_p->node_id, // Dest Node
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$oldest->datetime->format('Y'), // Year
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$oldest->datetime->format('m')-1, // Month
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$oldest->datetime->format('d'), // Day
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$oldest->datetime->format('H'), // Hour
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$oldest->datetime->format('i'), // Minute
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$oldest->datetime->format('s'), // Second
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0, // Baud
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2, // Packet Version (should be 2)
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$this->fftn_p->host_id, // Orig Net
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$this->tftn_p->host_id, // Dest Net
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(Setup::PRODUCT_ID & 0xff), // Product Code Lo
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Setup::PRODUCT_VERSION_MAJ, // Product Version Major
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$this->pass_p ?: $this->tftn_p->pass_packet, // Packet Password
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$this->fftn_p->zone->zone_id, // Orig Zone
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$this->tftn_p->zone->zone_id, // Dest Zone
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'', // Reserved
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);
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}
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/**
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* Determine if this is a fsc-0045 packet
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*
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* @param string $header
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* @return bool
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* @throws \Exception
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*/
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public static function is_type(string $header): bool
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{
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$head = unpack(self::unpackheader(self::HEADER),$header);
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return (
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(Arr::get($head,'type') === 2)
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&& (strlen(rtrim(Arr::get($head,'reserved'),"\x00")) === 0)
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);
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}
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} |