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Differences Between: [Versions 401 and 403]

   1  <?php
   2  
   3  namespace PhpXmlRpc\Helper;
   4  
   5  /**
   6   * @todo implement an interface
   7   * @todo make constructor private to force users to go through `instance()` ?
   8   */
   9  class Logger
  10  {
  11      protected static $instance = null;
  12  
  13      /**
  14       * This class can be used as singleton, so that later we can move to DI patterns (ish...)
  15       *
  16       * @return Logger
  17       */
  18      public static function instance()
  19      {
  20          if (self::$instance === null) {
  21              self::$instance = new self();
  22          }
  23  
  24          return self::$instance;
  25      }
  26  
  27      // *** Implement the same interface as PSR/LOG, for the sake of interoperability ***
  28  
  29      /**
  30       * NB: unlike other "traditional" loggers, this one echoes to screen the debug messages instead of logging them.
  31       *
  32       * @param string $message
  33       * @param array $context known key: 'encoding'
  34       * @return void
  35       */
  36      public function debug($message, $context = array())
  37      {
  38          if (isset($context['encoding'])) {
  39              $this->debugMessage($message, $context['encoding']);
  40          } else {
  41              $this->debugMessage($message);
  42          }
  43      }
  44  
  45      /**
  46       * Following the general principle of 'never break stdout', the default behaviour
  47       *
  48       * @param string $message
  49       * @param $context
  50       * @return void
  51       */
  52      public function warning($message, $context = array())
  53      {
  54          $this->errorLog(preg_replace('/^XML-RPC :/', 'XML-RPC Warning: ', $message));
  55      }
  56  
  57      /**
  58       * Triggers the writing of a message to php's error log
  59       *
  60       * @param string $message
  61       * @param array $context
  62       * @return void
  63       */
  64      public function error($message, $context = array())
  65      {
  66          $this->errorLog(preg_replace('/^XML-RPC :/', 'XML-RPC Error: ', $message));
  67      }
  68  
  69      // BC interface
  70  
  71      /**
  72       * Echoes a debug message, taking care of escaping it when not in console mode.
  73       * NB: if the encoding of the message is not known or wrong, and we are working in web mode, there is no guarantee
  74       *     of 100% accuracy, which kind of defeats the purpose of debugging
  75       *
  76       * @param string $message
  77       * @param string $encoding deprecated
  78       * @return void
  79       *
  80       * @internal left in purely for BC
  81       */
  82      public function debugMessage($message, $encoding = null)
  83      {
  84          // US-ASCII is a warning for PHP and a fatal for HHVM
  85          if ($encoding == 'US-ASCII') {
  86              $encoding = 'UTF-8';
  87          }
  88  
  89          if (PHP_SAPI != 'cli') {
  90              $flags = ENT_COMPAT;
  91              // avoid warnings on php < 5.4...
  92              if (defined('ENT_HTML401')) {
  93                  $flags =  $flags | ENT_HTML401;
  94              }
  95              if (defined('ENT_SUBSTITUTE')) {
  96                  $flags =  $flags | ENT_SUBSTITUTE;
  97              }
  98              if ($encoding != null) {
  99                  print "<PRE>\n".htmlentities($message, $flags, $encoding)."\n</PRE>";
 100              } else {
 101                  print "<PRE>\n".htmlentities($message, $flags)."\n</PRE>";
 102              }
 103          } else {
 104              print "\n$message\n";
 105          }
 106  
 107          // let the user see this now in case there's a time-out later...
 108          flush();
 109      }
 110  
 111      /**
 112       * Writes a message to the error log.
 113       *
 114       * @param string $message
 115       * @return void
 116       *
 117       * @internal left in purely for BC
 118       */
 119      public function errorLog($message)
 120      {
 121          error_log($message);
 122      }
 123  }