Raphaël G. Git Repositories - packbundle/blob - Filter/JPackFilter.php

   1 <?php declare(strict_types=1);
   2
   3 /*
   4  * This file is part of the Rapsys PackBundle package.
   5  *
   6  * (c) Raphaël Gertz <symfony@rapsys.eu>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Rapsys\PackBundle\Filter;
  13
  14 use Twig\Error\Error;
  15 use Twig\Source;
  16
  17 /**
  18  * {@inheritdoc}
  19  */
  20 class JPackFilter implements FilterInterface {
  21         /**
  22          * Setup jpack filter
  23          *
  24          * @xxx compress can be clean, shrink, obfuscate or best
  25          */
  26         public function __construct(protected Source $fileName, protected int $line, protected string $bin = 'jpack', protected string $compress = 'best') {
  27                 //Deal with compress
  28                 if (!empty($this->compress)) {
  29                         //Append clean parameter
  30                         if ($this->compress == 'clean') {
  31                                 //TODO: protect binary call by converting bin to array ?
  32                                 $this->bin .= ' --clean';
  33                         //Append shrink parameter
  34                         } elseif ($this->compress == 'shrink') {
  35                                 //TODO: protect binary call by converting bin to array ?
  36                                 $this->bin .= ' --shrink';
  37                         //Append obfuscate parameter
  38                         } elseif ($this->compress == 'obfuscate') {
  39                                 //TODO: protect binary call by converting bin to array ?
  40                                 $this->bin .= ' --obfuscate';
  41                         //Unknown compress type
  42                         //XXX: default compression is best
  43                         } elseif ($this->compress !== 'best') {
  44                                 //Throw an error on unknown compress
  45                                 throw new Error(sprintf('Got unexpected compress for %s: %s', $this->bin, $this->compress), $this->line, $this->fileName);
  46                         }
  47                 }
  48         }
  49
  50         /**
  51          * {@inheritdoc}
  52          */
  53         public function process(string $content): string {
  54                 //Create descriptors
  55                 $descriptorSpec = array(
  56                         0 => array('pipe', 'r'),
  57                         1 => array('pipe', 'w'),
  58                         2 => array('pipe', 'w')
  59                 );
  60
  61                 //Open process
  62                 if (is_resource($proc = proc_open($this->bin, $descriptorSpec, $pipes))) {
  63                         //Set stderr as non blocking
  64                         stream_set_blocking($pipes[2], false);
  65
  66                         //Send content to stdin
  67                         fwrite($pipes[0], $content);
  68
  69                         //Close stdin
  70                         fclose($pipes[0]);
  71
  72                         //Read content from stdout
  73                         if ($stdout = stream_get_contents($pipes[1])) {
  74                                 $content = $stdout;
  75                         }
  76
  77                         //Close stdout
  78                         fclose($pipes[1]);
  79
  80                         //Read content from stderr
  81                         if (($stderr = stream_get_contents($pipes[2]))) {
  82                                 throw new Error(sprintf('Got unexpected strerr for %s: %s', $this->bin, $stderr), $this->line, $this->fileName);
  83                         }
  84
  85                         //Close stderr
  86                         fclose($pipes[2]);
  87
  88                         //Close process
  89                         if (($ret = proc_close($proc))) {
  90                                 throw new Error(sprintf('Got unexpected non zero return code %s: %d', $this->bin, $ret), $this->line, $this->fileName);
  91                         }
  92                 }
  93
  94                 //Return content
  95                 return $content;
  96         }
  97 }