159 lines
4.5 KiB
Ruby
159 lines
4.5 KiB
Ruby
# frozen_string_literal: true
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class LogAnalyzer
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class LineParser
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# log_format log_discourse '[$time_local] "$http_host" $remote_addr "$request" "$http_user_agent" "$sent_http_x_discourse_route" $status $bytes_sent "$http_referer" $upstream_response_time $request_time "$sent_http_x_discourse_username"';
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attr_accessor :time, :ip_address, :url, :route, :user_agent, :rails_duration, :total_duration,
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:username, :status, :bytes_sent, :referer
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PATTERN = /\[(.*)\](?: ".*")? (\S+) \"(.*)\" \"(.*)\" \"(.*)\" ([0-9]+) ([0-9]+) \"(.*)\" ([0-9.]+) ([0-9.]+) "(.*)"/
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TIME_FORMAT = "%d/%b/%Y:%H:%M:%S %Z"
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def self.parse(line)
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result = new
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_, result.time, result.ip_address, result.url, result.user_agent,
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result.route, result.status, result.bytes_sent, result.referer,
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result.rails_duration, result.total_duration, result.username = line.match(PATTERN).to_a
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result.rails_duration = result.rails_duration.to_f
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result.total_duration = result.total_duration.to_f
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verb = result.url[0..3] if result.url
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if verb && verb == "POST"
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result.route += " (POST)"
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end
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if verb && verb == "PUT"
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result.route += " (PUT)"
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end
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result.url = self.sanitize_url(result.url) if result.url
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result
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end
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def is_mobile?
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user_agent =~ /Mobile|Android|webOS/ && !(user_agent =~ /iPad|Nexus (7|10)/)
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end
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def parsed_time
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DateTime.strptime(time, TIME_FORMAT) if time
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end
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private
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def self.sanitize_url(url)
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url.gsub(/api_key=([\w.\-]+)/, 'api_key=[FILTERED]')
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end
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end
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attr_reader :total_requests, :message_bus_requests, :filenames,
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:ip_to_rails_duration, :username_to_rails_duration,
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:route_to_rails_duration, :url_to_rails_duration,
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:status_404_to_count, :from_time, :to_time
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def self.analyze(filenames, args)
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new(filenames, args).analyze
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end
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class Aggeregator
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attr_accessor :aggregate_type
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def initialize
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@data = {}
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@aggregate_type = :duration
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end
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def add(id, duration, aggregate = nil)
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ary = (@data[id] ||= [0, 0])
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ary[0] += duration
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ary[1] += 1
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unless aggregate.nil?
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ary[2] ||= Hash.new(0)
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if @aggregate_type == :duration
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ary[2][aggregate] += duration
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elsif @aggregate_type == :count
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ary[2][aggregate] += 1
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end
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end
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end
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def top(n, aggregator_formatter = nil)
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@data.sort { |a, b| b[1][0] <=> a[1][0] }.first(n).map do |metric, ary|
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metric = metric.to_s
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metric = "[empty]" if metric.length == 0
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result = [metric, ary[0], ary[1]]
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# handle aggregate
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if ary[2]
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if aggregator_formatter
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result.push aggregator_formatter.call(ary[2], ary[0], ary[1])
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else
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result.push ary[2].sort { |a, b| b[1] <=> a[1] }.first(5).map { |k, v|
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v = "%.2f" % v if Float === v
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"#{k}(#{v})"}.join(" ")
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end
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end
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result
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end
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end
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end
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def initialize(filenames, args = {})
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@filenames = filenames
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@ip_to_rails_duration = Aggeregator.new
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@username_to_rails_duration = Aggeregator.new
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@route_to_rails_duration = Aggeregator.new
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@route_to_rails_duration.aggregate_type = :count
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@url_to_rails_duration = Aggeregator.new
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@status_404_to_count = Aggeregator.new
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@total_requests = 0
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@message_bus_requests = 0
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@limit = args[:limit]
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end
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def analyze
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now = DateTime.now
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@filenames.each do |filename|
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File.open(filename).each_line do |line|
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@total_requests += 1
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parsed = LineParser.parse(line)
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next unless parsed.time
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next if @limit && ((now - parsed.parsed_time) * 24 * 60).to_i > @limit
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@from_time ||= parsed.time
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@to_time = parsed.time
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if parsed.url =~ /(POST|GET) \/message-bus/
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@message_bus_requests += 1
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next
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end
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@ip_to_rails_duration.add(parsed.ip_address, parsed.rails_duration)
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username = parsed.username == "-" ? "[Anonymous]" : parsed.username
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@username_to_rails_duration.add(username, parsed.rails_duration, parsed.route)
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@route_to_rails_duration.add(parsed.route, parsed.rails_duration, parsed.is_mobile? ? "mobile" : "desktop")
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@url_to_rails_duration.add(parsed.url, parsed.rails_duration)
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@status_404_to_count.add(parsed.url, 1) if parsed.status == "404"
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end
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end
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self
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end
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end
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