Class: LogParser

Inherits:
Object
  • Object
show all
Defined in:
lib/LogParser.rb

Overview

LogParser.rb - ClickSpotter

Copyright © 2005, 2006 by Chris Schlaeger <[email protected]> This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation.

$Id: LogParser.rb 9 2006-01-23 08:41:35Z cs $

Instance Method Summary collapse

Constructor Details

#initialize ⇒ LogParser

Returns a new instance of LogParser.



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# File 'lib/LogParser.rb', line 14

def initialize()
  @fileName = nil
  @stream = nil
end

Instance Method Details

#getNextEntry(deadline) ⇒ Object 



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# File 'lib/LogParser.rb', line 29

def getNextEntry(deadline)
  # Make sure the file is open for reading. If not, open it and setup
  # a progress dialog in case it's a big file.
  if @stream == nil
    @stream = File.new(@fileName, 'r')
    @progressDlg = Qt::ProgressDialog.new(nil, nil, true)
    @progressDlg.setLabelText("Loading file #{@fileName} ...")
    @sizeAtOpen = File.size(@fileName)
    @progressDlg.setTotalSteps(@sizeAtOpen)
    @updateCounter = 0
  end

  # Update the progress dialog (even when it's not shown)
  if @progressDlg != nil
    if @stream.pos() >= @sizeAtOpen
      @progressDlg.setProgress(@sizeAtOpen)
      @progressDlg = nil
    else
      @updateCounter += 1
      @progressDlg.setProgress(@stream.pos()) if @updateCounter % 100 == 0
    end
  end

  # read one line from log and process it. Ignore all lines that are older
  # than the requested deadline
  begin
    line = @stream.gets
    if line == nil
      return nil
    end
    tokens = line.chomp().split(' ')
    if tokens.size < 10
      puts "Discarding corrupted log line: #{line}"
      next
    end
    ip = tokens[0]
    uid = tokens[1]
    timeStr = tokens[3].gsub(/[\[]/, '').gsub(/\//, ' ').sub(/:/, ' ')
    begin
      timeStamp = Time.parse(timeStr)
    rescue
      puts "Broken timestamp: #{line}"
      timeStamp = 0
      next
    end
  end while timeStamp < deadline

  request = tokens[5] + ' ' + tokens[6] + ' ' + tokens[7]
  isPage = false
  if tokens[5].sub(/"/, '') == 'GET'
    url = tokens[6]
    url = '/' if url == nil || url.empty?
    # Remove trailing slashes except for the base page
    url = url[0..-2] if url[-1..-1] == '/' && url != '/'

    if not $globals.isAuxFile(url)
      isPage = true
    end
  else
    url = nil
  end
  request.gsub!(/"/, '')
  code = tokens[8].to_i
  bytes = tokens[9].to_i
  referer = tokens[10] ? tokens[10].gsub(/"/, '') : ''
  # Remove the local server name from local referer URLs
  $globals.serverNames.each do |name|
    if referer.length >= name.length &&
       referer.slice(0 , name.length) == name
      referer = referer.slice(name.length,
                              referer.length - name.length)
    end
  end
  # Remove trailing slashes except for the base page
  referer = referer[0..-2] if !referer.empty? && referer[-1..-1] == '/' && \
                              referer != '/'
  referer = nil if referer == '-'

  if tokens[11]
    browser = tokens[11..tokens.length() - 1].join(' ').gsub(/"/, '')
  else
    browser = ''
  end

  return {
    'ip' => ip, 'uid' => uid, 'timeStamp' => timeStamp, 'request' => request,
    'url' => url, 'code' => code, 'bytes' => bytes,
    'referer' => referer, 'browser' => browser, 'isPage' => isPage}
end

#setFileName(fileName) ⇒ Object 



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# File 'lib/LogParser.rb', line 19

def setFileName(fileName)
  return if fileName == @fileName
  if @stream != nil
    @stream.close
    @progressDlg = nil
    @stream = nil
  end
  @fileName = fileName
end