Module: PacTrac::Carrier::Ems

Defined in:
lib/pactrac/carrier/ems.rb

Class Method Summary collapse

Class Method Details

.parse_tracking_data(response) ⇒ Object 



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# File 'lib/pactrac/carrier/ems.rb', line 58

def parse_tracking_data(response)
  doc = Nokogiri::HTML(response.raw.body)
  table = doc.css('.mailnum_result_box table')
  if table.nil?
    return Err.new(false, 'unable to find tracking data table')
  end        
  tracking_data = { :updates => [] }
  table.css('tr').each do |row|
    cells = row.css('td')
    next if cells.nil? or cells.length < 2
    tracking_data[:updates] << {
      :at => DateTime.parse(cells[0].content.to_s),
      :location => cells[1].content.to_s.strip,
      :message => cells[2].content.to_s.strip,
    }
  end
  return Err.new(true), tracking_data
end

.start_session ⇒ Object 



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# File 'lib/pactrac/carrier/ems.rb', line 77

def start_session
  Http::Session.start('www.ems.com.cn', 80)
end

.title ⇒ Object 



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# File 'lib/pactrac/carrier/ems.rb', line 16

def title
  'EMS'
end

.tracking_number_relevant?(tracking_number) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pactrac/carrier/ems.rb', line 20

def tracking_number_relevant?(tracking_number)
  tracking_number.strip.match(/^EE\d+CN$/)
end

.tracking_request(tracking_number, session) ⇒ Object 



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# File 'lib/pactrac/carrier/ems.rb', line 24

def tracking_request(tracking_number, session)
  err, raw = Http.request(Net::HTTP::Get.new('/english.html',
    'User-Agent' => user_agent), session)
  return err unless err.valid
  # Get validation image
  err, raw = Http.request(Net::HTTP::Get.new('/ems/rand',
    'User-Agent' => user_agent), session)
  unless err.valid
    return Err.new(false,
      "there was a problem connecting to the EMS server, #{err.msg}")
  end
  f = Verify::File.create('ems.jpg', raw.body)
  return Err.new(true), Response.new(raw, true, "file://#{f}")
end

.user_agent ⇒ Object 



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# File 'lib/pactrac/carrier/ems.rb', line 81

def user_agent
  'Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.1 (KHTML, like' +
    ' Gecko) Chrome/21.0.1180.75 Safari/537.1'
end

.verify(tracking_number, verification, session) ⇒ Object 



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# File 'lib/pactrac/carrier/ems.rb', line 39

def verify(tracking_number, verification, session)
  req = Net::HTTP::Post.new('/ems/order/singleQuery_e',
    'User-Agent' => user_agent)
  req.set_form_data({ :mailNum => tracking_number, :checkCode =>
    verification })
  if session.cookies
    req['Cookie'] = Http::Cookie.to_request_header_value(session.cookies)
  end
  err, raw = Http.request(req, session)
  unless err.valid
    return Err.new(false,
      "there was a problem connecting to the EMS server, #{err.msg}")
  end
  if raw.body.match(/failure/i)
    return Err.new(false, 'failure to verify using given code')
  end
  return Err.new(true), Response.new(raw, false)
end