Class: Blackhole::Hole

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Hole

Returns a new instance of Hole.



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# File 'lib/hole.rb', line 39

def initialize(options = {})

  self.host = options[:host] || "localhost"
  self.port = options[:port] || 8889
  self.mongo_db_name = options[:mongo_db_name] || "stepper"
  hostports = options[:mongo_hostports] || [["localhost", EM::Mongo::DEFAULT_PORT]]
  self.mongo_hostports = hostports.collect do |hp|
    if hp.is_a?(String)
      host, port = hp.split(":")
      [host, port || EM::Mongo::DEFAULT_PORT]
    else
      hp
    end
  end
  
  self.udp_packets_received = 0
  self.mongo_flushes = 0
  self.logs = []
  self.info = []
end

Instance Attribute Details

#host ⇒ Object

Host/Port to suck UDP packets on



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

def host
  @host
end

#info ⇒ Object

sender info



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# File 'lib/hole.rb', line 36

def info
  @info
end

#logs ⇒ Object

Received Log



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# File 'lib/hole.rb', line 34

def logs
  @logs
end

#mongo ⇒ Object

Actual EM::Mongo connection



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# File 'lib/hole.rb', line 23

def mongo
  @mongo
end

#mongo_db_name ⇒ Object

Info to connect to mongo



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# File 'lib/hole.rb', line 26

def mongo_db_name
  @mongo_db_name
end

#mongo_flushes ⇒ Object

Returns the value of attribute mongo_flushes.



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# File 'lib/hole.rb', line 31

def mongo_flushes
  @mongo_flushes
end

#mongo_hostports ⇒ Object

Returns the value of attribute mongo_hostports.



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# File 'lib/hole.rb', line 27

def mongo_hostports
  @mongo_hostports
end

#port ⇒ Object

Returns the value of attribute port.



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# File 'lib/hole.rb', line 20

def port
  @port
end

#udp_packets_received ⇒ Object

Stats



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# File 'lib/hole.rb', line 30

def udp_packets_received
  @udp_packets_received
end

Instance Method Details

#drain! ⇒ Object 



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# File 'lib/hole.rb', line 100

def drain!

  temp_logs = self.logs.clone
  self.logs = []
  temp_info = self.info.clone
  self.info = []
  temp_info.uniq!
  
  if temp_info.size > 0
    collection_name = Blackhole.mongo_collection_name("info") 
    temp_info.each do |info|
      info_tmp = {}
      info_tmp[:host] = info[:hostname].to_s
      info_tmp[:filename] = info[:filename].to_s
      info_tmp[:port] = self.port
      self.mongo.collection(collection_name).update(info_tmp, info_tmp, { upsert: true })
    end
  end

  if temp_logs.size > 0
    # sanitize collection name
    collection_name = Blackhole.mongo_collection_name(self.port) 

    self.mongo.collection(collection_name).insert(temp_logs)
    
  end

  Blackhole.logger.info "Saved logs : #{temp_logs}" 

  self.mongo_flushes += 1
end

#set_procline! ⇒ Object 



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# File 'lib/hole.rb', line 142

def set_procline!
  $0 = "blackhole [#{self.port}] [UDP Recv: #{self.udp_packets_received}] [Mongo saves: #{self.mongo_flushes}]"
end

#store!(data) ⇒ Object 



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# File 'lib/hole.rb', line 83

def store!(data)
  if /(?<seq>^<\d+>)(?<date>.{15})\s(?<hostname>[\w-]+)\s(?<filename>[^:]+):\s(?<log>.+)/ =~ data
    unless log == ""
      packet = {}
      packet[:hostname] = hostname
      packet[:filename] = filename
      self.info << packet
      packet[:date] = date
      packet[:log] = log
      packet[:time] = Time.now.to_i
      self.logs << packet
    end
  end

  self.udp_packets_received += 1
end

#tug! ⇒ Object 



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# File 'lib/hole.rb', line 60

def tug!
  EM.run do
    # Connect to mongo now
    self.mongo

    EM.open_datagram_socket host, port, HoleConnection do |conn|
      conn.hole = self
    end
    
    EM.add_periodic_timer(5) do
      #Blackhole.logger.info "Stepping: #{self.stepping.inspect}"
      #self.flush!
      self.drain!
      self.set_procline!
    end

    EM.next_tick do
      Blackhole.logger.info "Blackhost started to tug logs..."
      self.set_procline!
    end
  end
end