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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   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\Console\Logger;
  13  
  14  use Psr\Log\AbstractLogger;
  15  use Psr\Log\InvalidArgumentException;
  16  use Psr\Log\LogLevel;
  17  use Symfony\Component\Console\Output\ConsoleOutputInterface;
  18  use Symfony\Component\Console\Output\OutputInterface;
  19  
  20  /**
  21   * PSR-3 compliant console logger.
  22   *
  23   * @author Kévin Dunglas <dunglas@gmail.com>
  24   *
  25   * @see https://www.php-fig.org/psr/psr-3/
  26   */
  27  class ConsoleLogger extends AbstractLogger
  28  {
  29      const INFO = 'info';
  30      const ERROR = 'error';
  31  
  32      private $output;
  33      private $verbosityLevelMap = [
  34          LogLevel::EMERGENCY => OutputInterface::VERBOSITY_NORMAL,
  35          LogLevel::ALERT => OutputInterface::VERBOSITY_NORMAL,
  36          LogLevel::CRITICAL => OutputInterface::VERBOSITY_NORMAL,
  37          LogLevel::ERROR => OutputInterface::VERBOSITY_NORMAL,
  38          LogLevel::WARNING => OutputInterface::VERBOSITY_NORMAL,
  39          LogLevel::NOTICE => OutputInterface::VERBOSITY_VERBOSE,
  40          LogLevel::INFO => OutputInterface::VERBOSITY_VERY_VERBOSE,
  41          LogLevel::DEBUG => OutputInterface::VERBOSITY_DEBUG,
  42      ];
  43      private $formatLevelMap = [
  44          LogLevel::EMERGENCY => self::ERROR,
  45          LogLevel::ALERT => self::ERROR,
  46          LogLevel::CRITICAL => self::ERROR,
  47          LogLevel::ERROR => self::ERROR,
  48          LogLevel::WARNING => self::INFO,
  49          LogLevel::NOTICE => self::INFO,
  50          LogLevel::INFO => self::INFO,
  51          LogLevel::DEBUG => self::INFO,
  52      ];
  53      private $errored = false;
  54  
  55      public function __construct(OutputInterface $output, array $verbosityLevelMap = [], array $formatLevelMap = [])
  56      {
  57          $this->output = $output;
  58          $this->verbosityLevelMap = $verbosityLevelMap + $this->verbosityLevelMap;
  59          $this->formatLevelMap = $formatLevelMap + $this->formatLevelMap;
  60      }
  61  
  62      /**
  63       * {@inheritdoc}
  64       */
  65      public function log($level, $message, array $context = [])
  66      {
  67          if (!isset($this->verbosityLevelMap[$level])) {
  68              throw new InvalidArgumentException(sprintf('The log level "%s" does not exist.', $level));
  69          }
  70  
  71          $output = $this->output;
  72  
  73          // Write to the error output if necessary and available
  74          if (self::ERROR === $this->formatLevelMap[$level]) {
  75              if ($this->output instanceof ConsoleOutputInterface) {
  76                  $output = $output->getErrorOutput();
  77              }
  78              $this->errored = true;
  79          }
  80  
  81          // the if condition check isn't necessary -- it's the same one that $output will do internally anyway.
  82          // We only do it for efficiency here as the message formatting is relatively expensive.
  83          if ($output->getVerbosity() >= $this->verbosityLevelMap[$level]) {
  84              $output->writeln(sprintf('<%1$s>[%2$s] %3$s</%1$s>', $this->formatLevelMap[$level], $level, $this->interpolate($message, $context)), $this->verbosityLevelMap[$level]);
  85          }
  86      }
  87  
  88      /**
  89       * Returns true when any messages have been logged at error levels.
  90       *
  91       * @return bool
  92       */
  93      public function hasErrored()
  94      {
  95          return $this->errored;
  96      }
  97  
  98      /**
  99       * Interpolates context values into the message placeholders.
 100       *
 101       * @author PHP Framework Interoperability Group
 102       *
 103       * @param string $message
 104       *
 105       * @return string
 106       */
 107      private function interpolate($message, array $context)
 108      {
 109          if (false === strpos($message, '{')) {
 110              return $message;
 111          }
 112  
 113          $replacements = [];
 114          foreach ($context as $key => $val) {
 115              if (null === $val || is_scalar($val) || (\is_object($val) && method_exists($val, '__toString'))) {
 116                  $replacements["{{$key}}"] = $val;
 117              } elseif ($val instanceof \DateTimeInterface) {
 118                  $replacements["{{$key}}"] = $val->format(\DateTime::RFC3339);
 119              } elseif (\is_object($val)) {
 120                  $replacements["{{$key}}"] = '[object '.\get_class($val).']';
 121              } else {
 122                  $replacements["{{$key}}"] = '['.\gettype($val).']';
 123              }
 124          }
 125  
 126          return strtr($message, $replacements);
 127      }
 128  }