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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <[email protected]>
   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 Symfony\Component\VarDumper\Caster;
  13  
  14  /**
  15   * Represents a file or a URL.
  16   *
  17   * @author Nicolas Grekas <[email protected]>
  18   */
  19  class LinkStub extends ConstStub
  20  {
  21      public $inVendor = false;
  22  
  23      private static $vendorRoots;
  24      private static $composerRoots;
  25  
  26      public function __construct(string $label, int $line = 0, string $href = null)
  27      {
  28          $this->value = $label;
  29  
  30          if (null === $href) {
  31              $href = $label;
  32          }
  33          if (!\is_string($href)) {
  34              return;
  35          }
  36          if (str_starts_with($href, 'file://')) {
  37              if ($href === $label) {
  38                  $label = substr($label, 7);
  39              }
  40              $href = substr($href, 7);
  41          } elseif (str_contains($href, '://')) {
  42              $this->attr['href'] = $href;
  43  
  44              return;
  45          }
  46          if (!is_file($href)) {
  47              return;
  48          }
  49          if ($line) {
  50              $this->attr['line'] = $line;
  51          }
  52          if ($label !== $this->attr['file'] = realpath($href) ?: $href) {
  53              return;
  54          }
  55          if ($composerRoot = $this->getComposerRoot($href, $this->inVendor)) {
  56              $this->attr['ellipsis'] = \strlen($href) - \strlen($composerRoot) + 1;
  57              $this->attr['ellipsis-type'] = 'path';
  58              $this->attr['ellipsis-tail'] = 1 + ($this->inVendor ? 2 + \strlen(implode('', \array_slice(explode(\DIRECTORY_SEPARATOR, substr($href, 1 - $this->attr['ellipsis'])), 0, 2))) : 0);
  59          } elseif (3 < \count($ellipsis = explode(\DIRECTORY_SEPARATOR, $href))) {
  60              $this->attr['ellipsis'] = 2 + \strlen(implode('', \array_slice($ellipsis, -2)));
  61              $this->attr['ellipsis-type'] = 'path';
  62              $this->attr['ellipsis-tail'] = 1;
  63          }
  64      }
  65  
  66      private function getComposerRoot(string $file, bool &$inVendor)
  67      {
  68          if (null === self::$vendorRoots) {
  69              self::$vendorRoots = [];
  70  
  71              foreach (get_declared_classes() as $class) {
  72                  if ('C' === $class[0] && str_starts_with($class, 'ComposerAutoloaderInit')) {
  73                      $r = new \ReflectionClass($class);
  74                      $v = \dirname($r->getFileName(), 2);
  75                      if (is_file($v.'/composer/installed.json')) {
  76                          self::$vendorRoots[] = $v.\DIRECTORY_SEPARATOR;
  77                      }
  78                  }
  79              }
  80          }
  81          $inVendor = false;
  82  
  83          if (isset(self::$composerRoots[$dir = \dirname($file)])) {
  84              return self::$composerRoots[$dir];
  85          }
  86  
  87          foreach (self::$vendorRoots as $root) {
  88              if ($inVendor = str_starts_with($file, $root)) {
  89                  return $root;
  90              }
  91          }
  92  
  93          $parent = $dir;
  94          while (!@is_file($parent.'/composer.json')) {
  95              if (!@file_exists($parent)) {
  96                  // open_basedir restriction in effect
  97                  break;
  98              }
  99              if ($parent === \dirname($parent)) {
 100                  return self::$composerRoots[$dir] = false;
 101              }
 102  
 103              $parent = \dirname($parent);
 104          }
 105  
 106          return self::$composerRoots[$dir] = $parent.\DIRECTORY_SEPARATOR;
 107      }
 108  }