Class: Epp::Server

Inherits:
Object
  • Object
show all
Includes:
LibXML::XML, RequiresParameters
Defined in:
lib/epp/server.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from RequiresParameters

#requires!

Constructor Details

#initialize(attributes = {}) ⇒ Server

Required Attrbiutes

  • :server - The EPP server to connect to

  • :tag - The tag or username used with <login> requests.

  • :password - The password used with <login> requests.

Optional Attributes

  • :port - The EPP standard port is 700. However, you can choose a different port to use.

  • :lang - Set custom language attribute. Default is ‘en’.

  • :services - Use custom EPP services in the <login> frame. The defaults use the EPP standard domain, contact and host 1.0 services.

  • :extensions - URLs to custom extensions to standard EPP. Use these to extend the standard EPP (e.g., Nominet uses extensions). Defaults to none.

  • :version - Set the EPP version. Defaults to “1.0”.



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# File 'lib/epp/server.rb', line 21

def initialize(attributes = {})
  requires!(attributes, :tag, :password, :server)
  
  @tag        = attributes[:tag]
  @password   = attributes[:password]
  @server     = attributes[:server]
  @port       = attributes[:port]       || 700
  @lang       = attributes[:lang]       || "en"
  @services   = attributes[:services]   || ["urn:ietf:params:xml:ns:domain-1.0", "urn:ietf:params:xml:ns:contact-1.0", "urn:ietf:params:xml:ns:host-1.0"]
  @extensions = attributes[:extensions] || []
  @version    = attributes[:version]    || "1.0"
  
  @logged_in  = false
end

Instance Attribute Details

#extensions ⇒ Object

Returns the value of attribute extensions.



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# File 'lib/epp/server.rb', line 6

def extensions
  @extensions
end

#lang ⇒ Object

Returns the value of attribute lang.



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# File 'lib/epp/server.rb', line 6

def lang
  @lang
end

#password ⇒ Object

Returns the value of attribute password.



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# File 'lib/epp/server.rb', line 6

def password
  @password
end

#port ⇒ Object

Returns the value of attribute port.



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# File 'lib/epp/server.rb', line 6

def port
  @port
end

#server ⇒ Object

Returns the value of attribute server.



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# File 'lib/epp/server.rb', line 6

def server
  @server
end

#services ⇒ Object

Returns the value of attribute services.



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# File 'lib/epp/server.rb', line 6

def services
  @services
end

#tag ⇒ Object

Returns the value of attribute tag.



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# File 'lib/epp/server.rb', line 6

def tag
  @tag
end

#version ⇒ Object

Returns the value of attribute version.



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# File 'lib/epp/server.rb', line 6

def version
  @version
end

Instance Method Details

#close_connection ⇒ Object

Closes the connection to the EPP server.



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# File 'lib/epp/server.rb', line 89

def close_connection
  @socket.close     if @socket and not @socket.closed?
  @connection.close if @connection and not @connection.closed?
  
  @socket = @connection = nil

  return true
end

#get_frame ⇒ Object

Receive an EPP frame from the server. Since the connection is blocking, this method will wait until the connection becomes available for use. If the connection is broken, a SocketError will be raised. Otherwise, it will return a string containing the XML from the server.

Raises:

  • (SocketError) 


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# File 'lib/epp/server.rb', line 102

def get_frame
  raise SocketError.new("Connection closed by remote server") if !@socket or @socket.eof?

  header = @socket.read(4)

  raise SocketError.new("Error reading frame from remote server") if header.nil?

  length = header_size(header)

  raise SocketError.new("Got bad frame header length of #{length} bytes from the server") if length < 5

  return @socket.read(length - 4)
end

#header_size(header) ⇒ Object

Returns size of header of response from the EPP server.



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# File 'lib/epp/server.rb', line 129

def header_size(header)
  header.unpack("N").first
end

#new_epp_request ⇒ Object 



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# File 'lib/epp/server.rb', line 36

def new_epp_request
  xml = Document.new
  xml.root = Node.new("epp")
  
  xml.root["xmlns"] = "urn:ietf:params:xml:ns:epp-1.0"
  xml.root["xmlns:xsi"] = "http://www.w3.org/2001/XMLSchema-instance"
  xml.root["xsi:schemaLocation"] = "urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd"
  
  return xml
end

#open_connection ⇒ Object

established, then this method will call get_frame and return the EPP <greeting> frame which is sent by the server upon connection.



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# File 'lib/epp/server.rb', line 78

def open_connection
  @connection = TCPSocket.new(server, port)
  @socket = OpenSSL::SSL::SSLSocket.new(@connection) if @connection
  
  @socket.sync_close = true
  @socket.connect

  get_frame
end

#packed(xml) ⇒ Object

Pack the XML as a header for the EPP server.



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# File 'lib/epp/server.rb', line 124

def packed(xml)
  [xml.size + 4].pack("N")
end

#request(xml) ⇒ Object

Sends an XML request to the EPP server, and receives an XML response. <login> and <logout> requests are also wrapped around the request, so we can close the socket immediately after the request is made.



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# File 'lib/epp/server.rb', line 51

def request(xml)
  open_connection
  
  @logged_in = true if 
  
  begin
    @response = send_request(xml)
  ensure
    @logged_in = false if @logged_in && logout
            
    close_connection
  end
  
  return @response
end

#send_frame(xml) ⇒ Object

Send an XML frame to the server. Should return the total byte size of the frame sent to the server. If the socket returns EOF, the connection has closed and a SocketError is raised.



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# File 'lib/epp/server.rb', line 119

def send_frame(xml)
  @socket.write(packed(xml) + xml)
end

#send_request(xml) ⇒ Object

Wrapper which sends an XML frame to the server, and receives the response frame in return.



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# File 'lib/epp/server.rb', line 69

def send_request(xml)
  send_frame(xml)
  get_frame
end