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fog--fog/lib/fog/aws/ec2.rb
2009-07-14 16:04:39 -07:00

123 lines
4.2 KiB
Ruby

require 'rubygems'
require 'base64'
require 'cgi'
require 'hmac-sha2'
current_directory = File.dirname(__FILE__)
require "#{current_directory}/../connection"
require "#{current_directory}/../parser"
require "#{current_directory}/../response"
parsers_directory = "#{current_directory}/parsers/ec2"
require "#{parsers_directory}/allocate_address"
require "#{parsers_directory}/basic"
require "#{parsers_directory}/create_key_pair"
require "#{parsers_directory}/create_snapshot"
require "#{parsers_directory}/create_volume"
require "#{parsers_directory}/describe_addresses"
require "#{parsers_directory}/describe_availability_zones"
require "#{parsers_directory}/describe_images"
require "#{parsers_directory}/describe_instances"
require "#{parsers_directory}/describe_key_pairs"
require "#{parsers_directory}/describe_security_groups"
require "#{parsers_directory}/describe_snapshots"
require "#{parsers_directory}/describe_volumes"
requests_directory = "#{current_directory}/requests/ec2"
require "#{requests_directory}/allocate_address"
require "#{requests_directory}/create_key_pair"
require "#{requests_directory}/create_security_group"
require "#{requests_directory}/create_snapshot"
require "#{requests_directory}/create_volume"
require "#{requests_directory}/delete_key_pair"
require "#{requests_directory}/delete_security_group"
require "#{requests_directory}/delete_snapshot"
require "#{requests_directory}/delete_volume"
require "#{requests_directory}/describe_addresses"
require "#{requests_directory}/describe_availability_zones"
require "#{requests_directory}/describe_images"
require "#{requests_directory}/describe_instances"
require "#{requests_directory}/describe_key_pairs"
require "#{requests_directory}/describe_security_groups"
require "#{requests_directory}/describe_snapshots"
require "#{requests_directory}/describe_volumes"
require "#{requests_directory}/release_address"
require "#{requests_directory}/run_instances"
module Fog
module AWS
class EC2
# Initialize connection to EC2
#
# ==== Notes
# options parameter must include values for :aws_access_key_id and
# :aws_secret_access_key in order to create a connection
#
# ==== Examples
# sdb = SimpleDB.new(
# :aws_access_key_id => your_aws_access_key_id,
# :aws_secret_access_key => your_aws_secret_access_key
# )
#
# ==== Parameters
# * options<~Hash> - config arguments for connection. Defaults to {}.
#
# ==== Returns
# * EC2 object with connection to aws.
def initialize(options={})
@aws_access_key_id = options[:aws_access_key_id]
@aws_secret_access_key = options[:aws_secret_access_key]
@hmac = HMAC::SHA256.new(@aws_secret_access_key)
@host = options[:host] || 'ec2.amazonaws.com'
@port = options[:port] || 443
@scheme = options[:scheme] || 'https'
@connection = Fog::Connection.new("#{@scheme}://#{@host}:#{@port}")
end
private
def indexed_params(name, params)
indexed, index = {}, 1
for param in [*params]
indexed["#{name}.#{index}"] = param
index += 1
end
indexed
end
def request(params, parser)
params.merge!({
'AWSAccessKeyId' => @aws_access_key_id,
'SignatureMethod' => 'HmacSHA256',
'SignatureVersion' => '2',
'Timestamp' => Time.now.utc.strftime("%Y-%m-%dT%H:%M:%SZ"),
'Version' => '2009-04-04'
})
body = ''
for key in params.keys.sort
unless (value = params[key]).nil?
body << "#{key}=#{CGI.escape(value.to_s).gsub(/\+/, '%20')}&"
end
end
string_to_sign = "POST\n#{@host}\n/\n" << body.chop
hmac = @hmac.update(string_to_sign)
body << "Signature=#{CGI.escape(Base64.encode64(hmac.digest).chomp!).gsub(/\+/, '%20')}"
response = @connection.request({
:body => body,
:expects => 200,
:headers => { 'Content-Type' => 'application/x-www-form-urlencoded' },
:host => @host,
:method => 'POST',
:parser => parser
})
response
end
end
end
end