50 lines
1.4 KiB
Ruby
50 lines
1.4 KiB
Ruby
module Rack
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# Rack::CommonLogger forwards every request to an +app+ given, and
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# logs a line in the Apache common log format to the +logger+, or
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# rack.errors by default.
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class CommonLogger
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# Common Log Format: http://httpd.apache.org/docs/1.3/logs.html#common
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# lilith.local - - [07/Aug/2006 23:58:02] "GET / HTTP/1.1" 500 -
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# %{%s - %s [%s] "%s %s%s %s" %d %s\n} %
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FORMAT = %{%s - %s [%s] "%s %s%s %s" %d %s %0.4f\n}
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def initialize(app, logger=nil)
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@app = app
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@logger = logger
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end
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def call(env)
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began_at = Time.now
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status, header, body = @app.call(env)
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header = Utils::HeaderHash.new(header)
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log(env, status, header, began_at)
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[status, header, body]
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end
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private
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def log(env, status, header, began_at)
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now = Time.now
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length = extract_content_length(header)
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logger = @logger || env['rack.errors']
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logger.write FORMAT % [
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env['HTTP_X_FORWARDED_FOR'] || env["REMOTE_ADDR"] || "-",
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env["REMOTE_USER"] || "-",
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now.strftime("%d/%b/%Y %H:%M:%S"),
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env["REQUEST_METHOD"],
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env["PATH_INFO"],
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env["QUERY_STRING"].empty? ? "" : "?"+env["QUERY_STRING"],
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env["HTTP_VERSION"],
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status.to_s[0..3],
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length,
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now - began_at ]
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end
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def extract_content_length(headers)
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value = headers['Content-Length'] or return '-'
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value.to_s == '0' ? '-' : value
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end
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end
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end
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