src/applications/config/check/PhabricatorPathSetupCheck.php

   1 <?php
   2
   3 final class PhabricatorPathSetupCheck extends PhabricatorSetupCheck {
   4
   5   public function getDefaultGroup() {
   6     return self::GROUP_OTHER;
   7   }
   8
   9   protected function executeChecks() {
  10     // NOTE: We've already appended `environment.append-paths`, so we don't
  11     // need to explicitly check for it.
  12     $path = getenv('PATH');
  13
  14     if (!$path) {
  15       $summary = pht(
  16         'The environmental variable %s is empty. This server will not '.
  17         'be able to execute some commands.',
  18         '$PATH');
  19
  20       $message = pht(
  21         "The environmental variable %s is empty. This server needs to execute ".
  22         "some system commands, like `%s`, `%s`, `%s`, and `%s`. To execute ".
  23         "these commands, the binaries must be available in the webserver's ".
  24         "%s. You can set additional paths in configuration.",
  25         '$PATH',
  26         'svn',
  27         'git',
  28         'hg',
  29         'diff',
  30         '$PATH');
  31
  32       $this
  33         ->newIssue('config.environment.append-paths')
  34         ->setName(pht('%s Not Set', '$PATH'))
  35         ->setSummary($summary)
  36         ->setMessage($message)
  37         ->addPhabricatorConfig('environment.append-paths');
  38
  39       // Bail on checks below.
  40       return;
  41     }
  42
  43     // Users are remarkably industrious at misconfiguring software. Try to
  44     // catch mistaken configuration of PATH.
  45
  46     $path_parts = explode(PATH_SEPARATOR, $path);
  47     $bad_paths = array();
  48     foreach ($path_parts as $path_part) {
  49       if (!strlen($path_part)) {
  50         continue;
  51       }
  52
  53       $message = null;
  54       $not_exists = false;
  55       foreach (Filesystem::walkToRoot($path_part) as $part) {
  56         if (!Filesystem::pathExists($part)) {
  57           $not_exists = $part;
  58           // Walk up so we can tell if this is a readability issue or not.
  59           continue;
  60         } else if (!is_dir(Filesystem::resolvePath($part))) {
  61           $message = pht(
  62             "The PATH component '%s' (which resolves as the absolute path ".
  63             "'%s') is not usable because '%s' is not a directory.",
  64             $path_part,
  65             Filesystem::resolvePath($path_part),
  66             $part);
  67         } else if (!is_readable($part)) {
  68           $message = pht(
  69             "The PATH component '%s' (which resolves as the absolute path ".
  70             "'%s') is not usable because '%s' is not readable.",
  71             $path_part,
  72             Filesystem::resolvePath($path_part),
  73             $part);
  74         } else if ($not_exists) {
  75           $message = pht(
  76             "The PATH component '%s' (which resolves as the absolute path ".
  77             "'%s') is not usable because '%s' does not exist.",
  78             $path_part,
  79             Filesystem::resolvePath($path_part),
  80             $not_exists);
  81         } else {
  82           // Everything seems good.
  83           break;
  84         }
  85
  86         if ($message !== null) {
  87           break;
  88         }
  89       }
  90
  91       if ($message === null) {
  92         if (!phutil_is_windows() && !@file_exists($path_part.'/.')) {
  93           $message = pht(
  94             "The PATH component '%s' (which resolves as the absolute path ".
  95             "'%s') is not usable because it is not traversable (its '%s' ".
  96             "permission bit is not set).",
  97             $path_part,
  98             Filesystem::resolvePath($path_part),
  99             '+x');
 100         }
 101       }
 102
 103       if ($message !== null) {
 104         $bad_paths[$path_part] = $message;
 105       }
 106     }
 107
 108     if ($bad_paths) {
 109       foreach ($bad_paths as $path_part => $message) {
 110         $digest = substr(PhabricatorHash::weakDigest($path_part), 0, 8);
 111
 112         $this
 113           ->newIssue('config.PATH.'.$digest)
 114           ->setName(pht('%s Component Unusable', '$PATH'))
 115           ->setSummary(
 116             pht(
 117               'A component of the configured PATH can not be used by '.
 118               'the webserver: %s',
 119               $path_part))
 120           ->setMessage(
 121             pht(
 122               "The configured PATH includes a component which is not usable. ".
 123               "This server will be unable to find or execute binaries located ".
 124               "here:".
 125               "\n\n".
 126               "%s".
 127               "\n\n".
 128               "The user that the webserver runs as must be able to read all ".
 129               "the directories in PATH in order to make use of them.",
 130               $message))
 131           ->addPhabricatorConfig('environment.append-paths');
 132       }
 133     }
 134
 135   }
 136 }