/usr/lib/ruby/1.9.1/webrick/accesslog.rb is in libruby1.9.1 1.9.3.484-2ubuntu1.
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# accesslog.rb -- Access log handling utilities
#
# Author: IPR -- Internet Programming with Ruby -- writers
# Copyright (c) 2002 keita yamaguchi
# Copyright (c) 2002 Internet Programming with Ruby writers
#
# $IPR: accesslog.rb,v 1.1 2002/10/01 17:16:32 gotoyuzo Exp $
module WEBrick
##
# AccessLog provides logging to various files in various formats.
#
# Multiple logs may be written to at the same time:
#
# access_log = [
# [$stderr, WEBrick::AccessLog::COMMON_LOG_FORMAT],
# [$stderr, WEBrick::AccessLog::REFERER_LOG_FORMAT],
# ]
#
# server = WEBrick::HTTPServer.new :AccessLog => access_log
#
# Custom log formats may be defined. WEBrick::AccessLog provides a subset
# of the formatting from Apache's mod_log_config
# http://httpd.apache.org/docs/mod/mod_log_config.html#formats. See
# AccessLog::setup_params for a list of supported options
module AccessLog
##
# Raised if a parameter such as %e, %i, %o or %n is used without fetching
# a specific field.
class AccessLogError < StandardError; end
##
# The Common Log Format's time format
CLF_TIME_FORMAT = "[%d/%b/%Y:%H:%M:%S %Z]"
##
# Common Log Format
COMMON_LOG_FORMAT = "%h %l %u %t \"%r\" %s %b"
##
# Short alias for Common Log Format
CLF = COMMON_LOG_FORMAT
##
# Referer Log Format
REFERER_LOG_FORMAT = "%{Referer}i -> %U"
##
# User-Agent Log Format
AGENT_LOG_FORMAT = "%{User-Agent}i"
##
# Combined Log Format
COMBINED_LOG_FORMAT = "#{CLF} \"%{Referer}i\" \"%{User-agent}i\""
module_function
# This format specification is a subset of mod_log_config of Apache:
#
# %a:: Remote IP address
# %b:: Total response size
# %e{variable}:: Given variable in ENV
# %f:: Response filename
# %h:: Remote host name
# %{header}i:: Given request header
# %l:: Remote logname, always "-"
# %m:: Request method
# %{attr}n:: Given request attribute from <tt>req.attributes</tt>
# %{header}o:: Given response header
# %p:: Server's request port
# %{format}p:: The canonical port of the server serving the request or the
# actual port or the client's actual port. Valid formats are
# canonical, local or remote.
# %q:: Request query string
# %r:: First line of the request
# %s:: Request status
# %t:: Time the request was recieved
# %T:: Time taken to process the request
# %u:: Remote user from auth
# %U:: Unparsed URI
# %%:: Literal %
def setup_params(config, req, res)
params = Hash.new("")
params["a"] = req.peeraddr[3]
params["b"] = res.sent_size
params["e"] = ENV
params["f"] = res.filename || ""
params["h"] = req.peeraddr[2]
params["i"] = req
params["l"] = "-"
params["m"] = req.request_method
params["n"] = req.attributes
params["o"] = res
params["p"] = req.port
params["q"] = req.query_string
params["r"] = req.request_line.sub(/\x0d?\x0a\z/o, '')
params["s"] = res.status # won't support "%>s"
params["t"] = req.request_time
params["T"] = Time.now - req.request_time
params["u"] = req.user || "-"
params["U"] = req.unparsed_uri
params["v"] = config[:ServerName]
params
end
def format(format_string, params)
format_string.gsub(/\%(?:\{(.*?)\})?>?([a-zA-Z%])/){
param, spec = $1, $2
case spec[0]
when ?e, ?i, ?n, ?o
raise AccessLogError,
"parameter is required for \"#{spec}\"" unless param
(param = params[spec][param]) ? escape(param) : "-"
when ?t
params[spec].strftime(param || CLF_TIME_FORMAT)
when ?p
case param
when 'remote'
escape(params["i"].peeraddr[1].to_s)
else
escape(params["p"].to_s)
end
when ?%
"%"
else
escape(params[spec].to_s)
end
}
end
def escape(data)
if data.tainted?
data.gsub(/[[:cntrl:]\\]+/) {$&.dump[1...-1]}.untaint
else
data
end
end
end
end
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