Class: XmppGateway::HttpInterface

Inherits:
EM::Connection
  • Object
show all
Includes:
EM::HttpServer
Defined in:
lib/xmpp_gateway/http_interface.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.start(host = '127.0.0.1', port = 8000) ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 12

def self.start(host = '127.0.0.1', port = 8000)
  XmppGateway.logger.info "Starting server at http://#{host}:#{port}"
  EM.start_server(host, port, self)
end

Instance Method Details

#acceptable_method? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/xmpp_gateway/http_interface.rb', line 17

def acceptable_method?
  %w(GET POST).include? @http_request_method
end

#bad_request ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 116

def bad_request
  XmppGateway.logger.debug "Bad request '#{post_params['stanza']}' is not a valid stanza"
  
  response = EM::DelegatedHttpResponse.new(self)
  response.status = 400
  response.content_type 'text/html'
  response.content = "Please send a valid stanza\n"
  return response
end

#basic_auth ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 70

def basic_auth
  @_basic_auth ||= ( headers['Authorization'] || '' ).match(/\ABasic +(.+)\Z/).to_a[1]
end

#credentials ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 79

def credentials
  if basic_auth
    Base64.decode64(basic_auth).split(':')
  end
end

#get ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 126

def get
  XmppGateway.logger.debug "Success, send stanza form"
  
  response = EM::DelegatedHttpResponse.new(self)
  response.status = 200
  response.content_type 'text/html'      
  response.content = 
  "<h1>Enter Stanza</h1>" + 
  "<form method='post'>" +
    "<label for='stanza'>Stanza</label>" +
    "<textarea name='stanza' cols=50 rows=20>" +
      "<iq type='get'\n" +
      "    to='#{@connection.client.jid.domain}'\n" +
      "    id='info1'>\n" +
      "  <query xmlns='http://jabber.org/protocol/disco#info'/>\n" +
      "</iq>" +
    "</textarea>" +
    "<input type='submit' value='Submit'/>" +
  "</form>\n"
  return response
end

#headers ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 66

def headers
  @headers ||= Hash[@http_headers.split("\000").map{|kv| kv.split(':',2).map{|v| v.strip} }]
end

#method_not_allowed ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 106

def method_not_allowed
  XmppGateway.logger.debug "Method #{@http_request_method} not allowed"
  
  response = EM::DelegatedHttpResponse.new(self)
  response.status = 405
  response.content_type 'text/html'
  response.content = "Method not allowed\n"
  return response
end

#post_params ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 74

def post_params
  string = @http_post_content || ''
  @_post_params ||= Hash[string.split('&').map{|kv| kv.split('=',2).map{|v| CGI.unescape v } }]
end

#process_http_request ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 21

def process_http_request
  # the http request details are available via the following instance variables:
  #   @http_protocol
  #   @http_request_method
  #   @http_cookie
  #   @http_if_none_match
  #   @http_content_type
  #   @http_path_info
  #   @http_request_uri
  #   @http_query_string
  #   @http_post_content
  #   @http_headers
  
  XmppGateway.logger.info "Received request #{@http_request_method} #{post_params.inspect}"
  
  Fiber.new{        
    if acceptable_method?
      user, password = credentials
      @connection = XmppPool.new( user, password )
      if @connection.connected
        case @http_request_method
        when "GET"
          get.send_response
        when "POST"
          stanza = XmppPool.stanza(post_params['stanza'])
          if stanza
            result = @connection.write stanza
            response(result).send_response
          else
            bad_request.send_response
          end
        else
          # acceptable_method should have stopped us arriving here
          # battle on bravely
          method_not_allowed.send_response
        end
      else
        unauthorized.send_response
      end
    else
      method_not_allowed.send_response 
    end
  }.resume
end

#response(stanza) ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 85

def response(stanza)
  XmppGateway.logger.debug "Success"
  
  response = EM::DelegatedHttpResponse.new(self)
  response.status = 200
  response.content_type 'application/xml'
  response.content = stanza.to_s + "\n"
  return response
end

#unauthorized ⇒ Object 



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# File 'lib/xmpp_gateway/http_interface.rb', line 95

def unauthorized
  XmppGateway.logger.debug "Unauthorized, username & password wrong"
  
  response = EM::DelegatedHttpResponse.new(self)
  response.status = 401
  response.content_type 'text/html'
  response.headers = {"WWW-Authenticate" => 'Basic realm="Secure Area"'}
  response.content = "Unauthorised\n"
  return response
end