Class: Maas::Client::MaasClient

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

Overview

A class that can be used to call MAAS API.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(api_key = nil, endpoint = nil) ⇒ MaasClient

Returns a new instance of MaasClient.



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# File 'lib/maas/client.rb', line 15

def initialize(api_key = nil, endpoint = nil)

  if api_key and endpoint
    @api_key = api_key
    @endpoint = endpoint
  elsif File.exists?(Maas::Client::Config.config[:conf_file])
    Maas::Client::Config.set_config
    @api_key = Maas::Client::Config.config[:maas][:key]
    @endpoint = Maas::Client::Config.config[:maas][:url]
  else
    abort("There is no server Info provided.")
  end

  @consumer_key = @api_key.split(/:/)[0]
  @key = @api_key.split(/:/)[1]
  @secret = @api_key.split(/:/)[2]

  consumer = OAuth::Consumer.new(
    @consumer_key, '',
    {
      :site => @endpoint,
      :scheme => :header,
      :signature_method => "PLAINTEXT"
    }
  )

  @access_token = OAuth::AccessToken.new(
    consumer,
    @key,
    @secret
  )
end

Instance Attribute Details

#access_token ⇒ Object (readonly)

Returns the value of attribute access_token.



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# File 'lib/maas/client.rb', line 13

def access_token
  @access_token
end

Instance Method Details

#request(method, subject, param = nil) ⇒ Object 



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# File 'lib/maas/client.rb', line 48

def request(method, subject, param = nil)

  headers = {Accept: 'application/json'}

  uri = access_token.consumer.options[:site] + 
    '/' + 
    subject.join('/') + 
    '/'


  oauth_params = {
    :consumer => access_token.consumer, 
    :token => access_token
  }

  hydra = Typhoeus::Hydra.new

  Hashie.symbolize_keys! param if param

  options = {
    method: method,
    headers: headers
  }

# https://github.com/typhoeus/typhoeus#sending-params-in-the-body-with-put
  if [:get].include? method
    options.merge!({params: param})
  elsif [:post, :put].include? method
    options.merge!({body: param})
    headers.merge!(
      {'Content-Type'=> "application/x-www-form-urlencoded"}
    )
  end

  req = Typhoeus::Request.new(uri, options)

  oauth_helper = OAuth::Client::Helper.new(
    req,
    oauth_params.merge(
      {
        request_uri: uri,
        signature_method: access_token
        .consumer
        .options[:signature_method]
      }
    )
  )

  req.options[:headers].merge!(
    { "Authorization" => oauth_helper.header }
  )

  hydra.queue(req); hydra.run
  response = req.response

  if response.code == 200
    if valid_json?(response.body)
      return JSON.parse(response.body)
    else
      return response.body
    end
  elsif response.code == 204
    puts 'No Content'
  else
    raise "#{response.class} #{response.code} \
      #{response.status_message} #{response.body}"
  end
end

#valid_json?(json) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/maas/client.rb', line 117

def valid_json?(json)
  JSON.parse(json)
  return true
rescue JSON::ParserError => e
  return false
end