Class: Ucp::Util::UcpClient

Inherits:
Object
  • Object
show all
Defined in:
lib/ucp/util/ucp_client.rb

Instance Method Summary collapse

Constructor Details

#initialize(host, port, authcreds = nil) ⇒ UcpClient

Returns a new instance of UcpClient.



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# File 'lib/ucp/util/ucp_client.rb', line 31

def initialize(host,port, authcreds=nil)
  @host=host
  @port=port
  @connected=false
  @authcreds=authcreds
  @trn=0
  @mr=0
  connect()
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/ucp/util/ucp_client.rb', line 72

def close
  begin
    @socket.close
  rescue
  end
  @connected=false
end

#connect ⇒ Object 



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# File 'lib/ucp/util/ucp_client.rb', line 41

def connect
  #puts "connect()"
  
  begin
      @socket = TCPSocket.new(@host, @port)
      @connected=true
      @trn=0
  rescue
      @connected=false
      return false
  end


  if !@authcreds.nil?
    auth_ucp=Ucp60Operation.new
    auth_ucp.basic_auth(@authcreds[:login],@authcreds[:password])
    auth_ucp.trn="00"
    answer=send_sync(auth_ucp)
    #puts "Crecv: #{answer.to_s}\n"
    
    if !answer.nil? && answer.is_ack?
      inc_trn()
      return true
    else
      close()
      return false
    end
  end

end

#connected? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ucp/util/ucp_client.rb', line 80

def connected?
  if !@socket.nil? && !@socket.closed? && @connected
    @connected=true
  else
    @connected=false
  end
  return @connected
end

#inc_mr ⇒ Object 



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# File 'lib/ucp/util/ucp_client.rb', line 202

def inc_mr
 @mr+=1
 @mr=0 if @mr>255
end

#inc_trn ⇒ Object 



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# File 'lib/ucp/util/ucp_client.rb', line 197

def inc_trn
 @trn+=1
 @trn=0 if @trn>99
end

#read ⇒ Object 



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# File 'lib/ucp/util/ucp_client.rb', line 149

def read
  answer=nil
  begin
      answer = @socket.gets(3.chr)
  rescue
      puts "error: #{$!}"
      # deu erro, vamos fechar o socket
      close()
  end

  return answer
end

#send(ucp) ⇒ Object 



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# File 'lib/ucp/util/ucp_client.rb', line 126

def send(ucp)
  if !connected?
    connect()
    # se nao foi possivel ligar, retornar imediatamente com erro
    if !connected?
      return false
    end
  end

  begin
      @socket.print ucp.to_s
  rescue
      puts "error: #{$!}"
      # deu erro, vamos fechar o socket
      close()
      # error
      return false
  end

  # OK
  return true
end

#send_alert(recipient, pid) ⇒ Object 



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# File 'lib/ucp/util/ucp_client.rb', line 181

def send_alert(recipient,pid)
  ucp=Ucp31Operation.new
  ucp.basic_alert(recipient,pid)

  trn=UCP.int2hex(@trn)
  ucp.trn=trn
  ans=send_sync(ucp)
  inc_trn()
#      puts "e um ack: #{ans.nil?} ; #{ans.is_ack?}"
  return false if ans.nil? || !ans.is_ack?

  return true
end

#send_message(originator, recipient, message) ⇒ Object 



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# File 'lib/ucp/util/ucp_client.rb', line 162

def send_message(originator,recipient,message)
  #ucp=Ucp51Operation.new(originator,recipient,message)

  ucps=UCP.make_multi_ucps(originator,recipient,message,@mr)
  inc_mr()

  ucps.each { |ucp|      
    ucp.trn=UCP.int2hex(@trn)
    ans=send_sync(ucp)
    inc_trn()
#      puts "e um ack: #{ans.nil?} ; #{ans.is_ack?}"
    return false if ans.nil? || !ans.is_ack?
  }


  return true
end

#send_sync(ucp) ⇒ Object 



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# File 'lib/ucp/util/ucp_client.rb', line 89

def send_sync(ucp)
  #puts "XXXX0"

  if !connected?
    connect()
    # se nao foi possivel ligar, retornar imediatamente com erro
    if !connected?
      return nil
    end
  end

  #puts "XXXX1"
  
  answer=nil
  begin
      @socket.print ucp.to_s
      puts "Csent: #{ucp.to_s}\n"
      answer = @socket.gets(3.chr)
      #answer = @socket.gets("#")
      puts "Crecv: #{answer.to_s}\n"
  rescue
      puts "error: #{$!}"
      @connected=false
  end

  # verificar o trn da resposta face a submissao
  replyucp=UCP.parse_str(answer)
  return nil if replyucp.nil?

  if !ucp.trn.eql?(replyucp.trn)
    puts "unexpected trn #{replyucp.trn}. should be #{ucp.trn}"
    return nil
  else
    return replyucp
  end
end