application/ApplicationUtils.php

   1 <?php
   2 /**
   3  * Shaarli (application) utilities
   4  */
   5 class ApplicationUtils
   6 {
   7
   8     /**
   9      * Checks Shaarli has the proper access permissions to its resources
  10      *
  11      * @param array $globalConfig The $GLOBALS['config'] array
  12      *
  13      * @return array A list of the detected configuration issues
  14      */
  15     public static function checkResourcePermissions($globalConfig)
  16     {
  17         $errors = array();
  18
  19         // Check script and template directories are readable
  20         foreach (array(
  21             'application',
  22             'inc',
  23             'plugins',
  24             $globalConfig['RAINTPL_TPL']
  25         ) as $path) {
  26             if (! is_readable(realpath($path))) {
  27                 $errors[] = '"'.$path.'" directory is not readable';
  28             }
  29         }
  30
  31         // Check cache and data directories are readable and writeable
  32         foreach (array(
  33             $globalConfig['CACHEDIR'],
  34             $globalConfig['DATADIR'],
  35             $globalConfig['PAGECACHE'],
  36             $globalConfig['RAINTPL_TMP']
  37         ) as $path) {
  38             if (! is_readable(realpath($path))) {
  39                 $errors[] = '"'.$path.'" directory is not readable';
  40             }
  41             if (! is_writable(realpath($path))) {
  42                 $errors[] = '"'.$path.'" directory is not writable';
  43             }
  44         }
  45
  46         // Check configuration files are readable and writeable
  47         foreach (array(
  48             $globalConfig['CONFIG_FILE'],
  49             $globalConfig['DATASTORE'],
  50             $globalConfig['IPBANS_FILENAME'],
  51             $globalConfig['LOG_FILE'],
  52             $globalConfig['UPDATECHECK_FILENAME']
  53         ) as $path) {
  54             if (! is_file(realpath($path))) {
  55                 # the file may not exist yet
  56                 continue;
  57             }
  58
  59             if (! is_readable(realpath($path))) {
  60                 $errors[] = '"'.$path.'" file is not readable';
  61             }
  62             if (! is_writable(realpath($path))) {
  63                 $errors[] = '"'.$path.'" file is not writable';
  64             }
  65         }
  66
  67         return $errors;
  68     }
  69 }