| 1 | #
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| 2 | # accesslog.rb -- Access log handling utilities
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| 3 | #
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| 4 | # Author: IPR -- Internet Programming with Ruby -- writers
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| 5 | # Copyright (c) 2002 keita yamaguchi
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| 6 | # Copyright (c) 2002 Internet Programming with Ruby writers
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| 7 | #
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| 8 | # $IPR: accesslog.rb,v 1.1 2002/10/01 17:16:32 gotoyuzo Exp $
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| 9 |
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| 10 | module WEBrick
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| 11 | module AccessLog
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| 12 | class AccessLogError < StandardError; end
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| 13 |
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| 14 | CLF_TIME_FORMAT = "[%d/%b/%Y:%H:%M:%S %Z]"
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| 15 | COMMON_LOG_FORMAT = "%h %l %u %t \"%r\" %s %b"
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| 16 | CLF = COMMON_LOG_FORMAT
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| 17 | REFERER_LOG_FORMAT = "%{Referer}i -> %U"
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| 18 | AGENT_LOG_FORMAT = "%{User-Agent}i"
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| 19 | COMBINED_LOG_FORMAT = "#{CLF} \"%{Referer}i\" \"%{User-agent}i\""
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| 20 |
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| 21 | module_function
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| 22 |
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| 23 | # This format specification is a subset of mod_log_config of Apache.
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| 24 | # http://httpd.apache.org/docs/mod/mod_log_config.html#formats
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| 25 | def setup_params(config, req, res)
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| 26 | params = Hash.new("")
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| 27 | params["a"] = req.peeraddr[3]
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| 28 | params["b"] = res.sent_size
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| 29 | params["e"] = ENV
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| 30 | params["f"] = res.filename || ""
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| 31 | params["h"] = req.peeraddr[2]
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| 32 | params["i"] = req
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| 33 | params["l"] = "-"
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| 34 | params["m"] = req.request_method
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| 35 | params["n"] = req.attributes
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| 36 | params["o"] = res
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| 37 | params["p"] = req.port
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| 38 | params["q"] = req.query_string
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| 39 | params["r"] = req.request_line.sub(/\x0d?\x0a\z/o, '')
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| 40 | params["s"] = res.status # won't support "%>s"
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| 41 | params["t"] = req.request_time
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| 42 | params["T"] = Time.now - req.request_time
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| 43 | params["u"] = req.user || "-"
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| 44 | params["U"] = req.unparsed_uri
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| 45 | params["v"] = config[:ServerName]
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| 46 | params
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| 47 | end
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| 48 |
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| 49 | def format(format_string, params)
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| 50 | format_string.gsub(/\%(?:\{(.*?)\})?>?([a-zA-Z%])/){
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| 51 | param, spec = $1, $2
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| 52 | case spec[0]
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| 53 | when ?e, ?i, ?n, ?o
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| 54 | raise AccessLogError,
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| 55 | "parameter is required for \"#{spec}\"" unless param
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| 56 | params[spec][param] || "-"
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| 57 | when ?t
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| 58 | params[spec].strftime(param || CLF_TIME_FORMAT)
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| 59 | when ?%
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| 60 | "%"
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| 61 | else
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| 62 | params[spec]
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| 63 | end
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| 64 | }
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| 65 | end
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| 66 | end
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| 67 | end
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