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105 lines
3.4 KiB
Ruby
105 lines
3.4 KiB
Ruby
module Fog
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module AWS
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module ELB
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def self.new(options={})
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unless @required
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require 'fog/aws/requests/elb/describe_load_balancers'
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require 'fog/aws/parsers/elb/describe_load_balancers'
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@required = true
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end
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unless options[:aws_access_key_id]
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raise ArgumentError.new('aws_access_key_id is required to access elb')
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end
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unless options[:aws_secret_access_key]
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raise ArgumentError.new('aws_secret_access_key is required to access elb')
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end
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Fog::AWS::ELB::Real.new(options)
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end
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class Real
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# Initialize connection to ELB
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#
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# ==== Notes
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# options parameter must include values for :aws_access_key_id and
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# :aws_secret_access_key in order to create a connection
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#
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# ==== Examples
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# elb = ELB.new(
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# :aws_access_key_id => your_aws_access_key_id,
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# :aws_secret_access_key => your_aws_secret_access_key
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# )
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#
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# ==== Parameters
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# * options<~Hash> - config arguments for connection. Defaults to {}.
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# * region<~String> - optional region to use, in ['eu-west-1', 'us-east-1', 'us-west-1'i, 'ap-southeast-1']
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#
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# ==== Returns
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# * ELB object with connection to AWS.
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def initialize(options={})
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@aws_access_key_id = options[:aws_access_key_id]
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@aws_secret_access_key = options[:aws_secret_access_key]
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@hmac = HMAC::SHA256.new(@aws_secret_access_key)
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@host = options[:host] || case options[:region]
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when 'ap-southeast-1'
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'elasticloadbalancing.ap-southeast-1.amazonaws.com'
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when 'eu-west-1'
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'elasticloadbalancing.eu-west-1.amazonaws.com'
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when 'us-east-1'
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'elasticloadbalancing.us-east-1.amazonaws.com'
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when 'us-west-1'
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'elasticloadbalancing.us-west-1.amazonaws.com'
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else
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'elasticloadbalancing.amazonaws.com'
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end
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@port = options[:port] || 443
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@scheme = options[:scheme] || 'https'
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end
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private
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def request(params)
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@connection = Fog::Connection.new("#{@scheme}://#{@host}:#{@port}")
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idempotent = params.delete(:idempotent)
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parser = params.delete(:parser)
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params.merge!({
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'AWSAccessKeyId' => @aws_access_key_id,
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'SignatureMethod' => 'HmacSHA256',
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'SignatureVersion' => '2',
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'Timestamp' => Time.now.utc.strftime("%Y-%m-%dT%H:%M:%SZ"),
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'Version' => '2009-11-25'
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})
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body = ''
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for key in params.keys.sort
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unless (value = params[key]).nil?
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body << "#{key}=#{CGI.escape(value.to_s).gsub(/\+/, '%20')}&"
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end
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end
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string_to_sign = "POST\n#{@host}\n/\n" << body.chop
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hmac = @hmac.update(string_to_sign)
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body << "Signature=#{CGI.escape(Base64.encode64(hmac.digest).chomp!).gsub(/\+/, '%20')}"
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response = @connection.request({
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:body => body,
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:expects => 200,
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:headers => { 'Content-Type' => 'application/x-www-form-urlencoded' },
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:idempotent => idempotent,
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:host => @host,
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:method => 'POST',
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:parser => parser
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})
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response
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end
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end
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end
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end
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end
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