291 lines
7.6 KiB
PHP
291 lines
7.6 KiB
PHP
<?php
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namespace App\Classes\FTN;
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use Carbon\Carbon;
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use Illuminate\Contracts\Filesystem\FileNotFoundException;
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use Illuminate\Support\Collection;
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use Illuminate\Support\Facades\Log;
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use Illuminate\Support\Facades\Storage;
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use League\Flysystem\UnableToWriteFile;
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use App\Classes\FTN as FTNBase;
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use App\Models\{Address,File,Filearea,Setup};
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use App\Traits\EncodeUTF8;
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/**
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* Class TIC
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* Used create the structure of TIC files
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*
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* @package App\Classes
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*/
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class Tic extends FTNBase
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{
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use EncodeUTF8;
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private const LOGKEY = 'FT-';
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private const cast_utf8 = [
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];
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// Single value kludge items and whether they are required
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// http://ftsc.org/docs/fts-5006.001
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private array $_kludge = [
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'AREA' => TRUE,
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'areadesc' => FALSE,
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'ORIGIN' => TRUE,
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'FROM' => TRUE,
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'to' => FALSE,
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'FILE' => TRUE, // 8.3 DOS format
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'lfile' => FALSE, // alias fullname
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'fullname' => FALSE,
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'size' => FALSE,
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'date' => FALSE, // File creation date
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'desc' => FALSE, // One line description of file
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'ldesc' => FALSE, // Can have multiple
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'created' => FALSE,
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'magic' => FALSE,
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'replaces' => FALSE, // ? and * are wildcards, as per DOS
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'CRC' => TRUE, // crc-32
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'PATH' => TRUE, // can have multiple: [FTN] [unix timestamp] [datetime human readable] [signature]
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'SEENBY' => TRUE,
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'pw' => FALSE, // Password
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];
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private File $fo;
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private Filearea $area;
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private Collection $values;
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private Address $origin; // Should be first address in Path
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private Address $from; // Should be last address in Path
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private Address $to; // Should be me
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public function __construct()
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{
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$this->fo = new File;
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$this->fo->kludges = collect();
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$this->fo->set_path = collect();
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$this->fo->set_seenby = collect();
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$this->fo->rogue_path = collect();
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$this->fo->rogue_seenby = collect();
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$this->values = collect();
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}
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/**
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* Does this TIC file bring us a nodelist
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*
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* @return bool
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*/
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public function isNodelist(): bool
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{
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return (($this->fo->nodelist_filearea_id === $this->fo->filearea->domain->filearea_id)
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&& (preg_match(str_replace(['.','?'],['\.','.'],'#^'.$this->fo->filearea->domain->nodelist_filename.'$#i'),$this->fo->name)));
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}
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/**
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* Generate a TIC file for an address
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*
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* @param Address $ao
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* @param File $fo
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* @return string
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*/
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public function generate(Address $ao,File $fo): string
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{
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$sysaddress = Setup::findOrFail(config('app.id'))->system->match($ao->zone)->first();
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$result = collect();
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// Origin is the first address in our path
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$result->put('ORIGIN',$fo->path->first()->ftn3d);
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$result->put('FROM',$sysaddress->ftn3d);
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$result->put('TO',$ao->ftn3d);
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$result->put('FILE',$fo->name);
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$result->put('SIZE',$fo->size);
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if ($fo->description)
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$result->put('DESC',$fo->description);
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$result->put('AREA',$fo->filearea->name);
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$result->put('AREADESC',$fo->filearea->description);
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$result->put('PW',$ao->session('ticpass'));
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$result->put('CRC',sprintf("%X",$fo->crc));
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$out = '';
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foreach ($result as $key=>$value)
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$out .= sprintf("%s %s\r\n",$key,$value);
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foreach ($fo->path as $o)
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$out .= sprintf("PATH %s %s %s\r\n",$o->ftn3d,$o->pivot->datetime,$o->pivot->extra);
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foreach ($fo->seenby as $o)
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$out .= sprintf("SEENBY %s\r\n",$o->ftn3d);
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return $out;
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}
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/**
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* Load a TIC file from an existing filename
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*
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* @param string $filename
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* @return void
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* @throws FileNotFoundException
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*/
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public function load(string $filename): void
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{
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Log::info(sprintf('%s:Processing TIC file [%s]',self::LOGKEY,$filename));
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list($hex,$name) = explode('-',$filename);
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$hex = basename($hex);
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if (! file_exists($filename))
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throw new FileNotFoundException(sprintf('%s:File [%s] doesnt exist',self::LOGKEY,realpath($filename)));
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if (! is_readable($filename))
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throw new UnableToWriteFile(sprintf('%s:File [%s] is not readable',self::LOGKEY,realpath($filename)));
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$f = fopen($filename,'rb');
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if (! $f) {
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Log::error(sprintf('%s:! Unable to open file [%s] for writing',self::LOGKEY,$filename));
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return;
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}
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while (! feof($f)) {
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$line = chop(fgets($f));
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$matches = [];
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if (! $line)
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continue;
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preg_match('/([a-zA-Z]+)\ (.*)/',$line,$matches);
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if (in_array(strtolower($matches[1]),$this->_kludge)) {
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switch ($k=strtolower($matches[1])) {
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case 'area':
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$this->{$k} = Filearea::singleOrNew(['name'=>strtoupper($matches[2])]);
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break;
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case 'origin':
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case 'from':
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case 'to':
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$this->{$k} = Address::findFTN($matches[2]);
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// @todo If $this->{$k} is null, we have discovered the system and it should be created
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break;
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case 'file':
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if (! Storage::disk('local')->exists($x=sprintf('%s/%s-%s',config('app.fido'),$hex,$matches[2])))
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throw new FileNotFoundException(sprintf('File not found? [%s]',$x));
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$this->fo->name = $matches[2];
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$this->fo->fullname = $x;
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break;
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case 'areadesc':
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$areadesc = $matches[2];
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break;
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case 'created':
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// ignored
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break;
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case 'pw':
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$pw = $matches[2];
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case 'lfile':
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$this->fo->lname = $matches[2];
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case 'desc':
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case 'magic':
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case 'replaces':
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case 'size':
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$this->fo->{$k} = $matches[2];
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break;
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case 'fullname':
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$this->fo->lfile = $matches[2];
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break;
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case 'date':
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$this->fo->datetime = Carbon::create($matches[2]);
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break;
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case 'ldesc':
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$this->fo->{$k} .= $matches[2];
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break;
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case 'crc':
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$this->fo->{$k} = hexdec($matches[2]);
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break;
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case 'path':
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$x = [];
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preg_match(sprintf('#^[Pp]ath (%s)\ ?([0-9]+)\ ?(.*)$#',Address::ftn_regex),$line,$x);
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$ao = Address::findFTN($x[1]);
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if (! $ao) {
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$this->fo->rogue_path->push($matches[2]);
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} else {
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$this->fo->set_path->push(['address'=>$ao,'datetime'=>Carbon::createFromTimestamp($x[8]),'extra'=>$x[9]]);
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}
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break;
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case 'seenby':
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$ao = Address::findFTN($matches[2]);
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if (! $ao) {
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$this->fo->rogue_seenby->push($matches[2]);
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} else {
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$this->fo->set_seenby->push($ao->id);
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}
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break;
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}
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} else {
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$this->fo->kludges->push($line);
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}
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}
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fclose($f);
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$f = fopen($x=Storage::disk('local')->path($this->fo->fullname),'rb');
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$stat = fstat($f);
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fclose($f);
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// Validate Size
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if ($this->fo->size !== ($y=$stat['size']))
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throw new \Exception(sprintf('TIC file size [%d] doesnt match file [%s] (%d)',$this->fo->size,$this->fo->fullname,$y));
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// Validate CRC
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if (sprintf('%08x',$this->fo->crc) !== ($y=hash_file('crc32b',$x)))
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throw new \Exception(sprintf('TIC file CRC [%08x] doesnt match file [%s] (%s)',$this->fo->crc,$this->fo->fullname,$y));
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// Validate Password
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if ($pw !== ($y=$this->from->session('ticpass')))
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throw new \Exception(sprintf('TIC file PASSWORD [%s] doesnt match system [%s] (%s)',$pw,$this->from->ftn,$y));
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// Validate Sender is linked (and permitted to send)
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if ($this->from->fileareas->search(function($item) { return $item->id === $this->area->id; }) === FALSE)
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throw new \Exception(sprintf('Node [%s] is not subscribed to [%s]',$this->from->ftn,$this->area->name));
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// If the filearea is to be autocreated, create it
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if (! $this->area->exists) {
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$this->area->description = $areadesc;
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$this->area->active = TRUE;
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$this->area->public = FALSE;
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$this->area->notes = 'Autocreated';
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$this->area->domain_id = $this->from->zone->domain_id;
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$this->area->save();
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}
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$this->fo->filearea_id = $this->area->id;
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$this->fo->fftn_id = $this->origin->id;
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// If the file create time is blank, we'll take the files
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if (! $this->fo->datetime)
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$this->fo->datetime = Carbon::createFromTimestamp($stat['ctime']);
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$this->fo->save();
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}
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} |