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30 lines
1.1 KiB
Ruby
30 lines
1.1 KiB
Ruby
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# frozen_string_literal: true
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# This log formatter limits the number of characters in each log message to prevent malicious requests from filling up the disk
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# in a short amount of time. The number of characters is determined by the `log_line_max_chars` global setting which can be
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# configured via the `DISCOURSE_MAX_LOG_LINES` environment variable or via the `discourse_defaults.conf` file.
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class TruncateLogsFormatter < ::ActiveSupport::Logger::SimpleFormatter
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include ::ActiveSupport::TaggedLogging::Formatter
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def initialize(log_line_max_chars:)
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@log_line_max_chars = log_line_max_chars
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end
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def call(*args)
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# Lograge formatters are only called with a single argument instead of the usual 4 arguments of `severity`, `datetime`, `progname` and `message`.
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message =
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if args.length == 1
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args[0]
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else
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args[3]
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end
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if message.length > @log_line_max_chars
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newlines = message.length - message.chomp.length
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"#{message[0, @log_line_max_chars]}...(truncated)#{"\n" * newlines}"
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else
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message
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end
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end
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end
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