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  1. Moodle
  2. MDL-50932

File cache store doesn't check if file exists if prescan is enabled

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    Description

      The code: \cachestore_file->get

              if ($this->prescan && array_key_exists($key, $this->keys)) {
                  if (!$ttl || $this->keys[$filename] >= $maxtime && file_exists($file)) {
                      $readfile = true;
                  } else {
                      $this->delete($key);
                  }
      

      And in particular, this line:

      if (!$ttl || $this->keys[$filename] >= $maxtime && file_exists($file)) {
      

      Parentheses are needed around the TTL and max time checks, otherwise file_exists is completely ignored. Testing it in PHP interpreter:

      // Without parentheses.
      php > var_dump((true || false && false));
      bool(true)
      // With parentheses.
      php > var_dump(((true || false) && false));
      bool(false)
      

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            marina Marina Glancy
            bushido Mark Nielsen
            John Okely John Okely
            David Monllaó David Monllaó
            Frédéric Massart Frédéric Massart
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            Dates

              Created:
              Updated:
              Resolved:

              Clockify

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