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module Fog
module AWS
class STS < Fog::Service
extend Fog::AWS::CredentialFetcher::ServiceMethods
class EntityAlreadyExists < Fog::AWS::STS::Error; end
class ValidationError < Fog::AWS::STS::Error; end
class AwsAccessKeysMissing < Fog::AWS::STS::Error; end
recognizes :region, :aws_access_key_id, :aws_secret_access_key, :host, :path, :port, :scheme, :persistent, :aws_session_token, :use_iam_profile, :aws_credentials_expire_at, :instrumentor, :instrumentor_name
request_path 'fog/aws/requests/sts'
request :get_federation_token
request :get_session_token
request :assume_role
request :assume_role_with_saml
request :assume_role_with_web_identity
class Mock
def self.data
@data ||= Hash.new do |hash, key|
hash[key] = {
:owner_id => Fog::AWS::Mock.owner_id,
:server_certificates => {}
}
end
end
def self.reset
@data = nil
end
def self.server_certificate_id
Fog::Mock.random_hex(16)
end
def initialize(options={})
@use_iam_profile = options[:use_iam_profile]
setup_credentials(options)
end
def data
self.class.data[@aws_access_key_id]
end
def reset_data
self.class.data.delete(@aws_access_key_id)
end
def setup_credentials(options)
@aws_access_key_id = options[:aws_access_key_id]
end
end
class Real
include Fog::AWS::CredentialFetcher::ConnectionMethods
# Initialize connection to STS
#
# ==== Notes
# options parameter must include values for :aws_access_key_id and
# :aws_secret_access_key in order to create a connection
#
# ==== Examples
# iam = STS.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
# * STS object with connection to AWS.
def initialize(options={})
@use_iam_profile = options[:use_iam_profile]
@region = options[:region] || 'us-east-1'
setup_credentials(options)
@instrumentor = options[:instrumentor]
@instrumentor_name = options[:instrumentor_name] || 'fog.aws.sts'
@connection_options = options[:connection_options] || {}
@host = options[:host] || "sts.#{@region}.amazonaws.com"
@path = options[:path] || '/'
@persistent = options[:persistent] || false
@port = options[:port] || 443
@scheme = options[:scheme] || 'https'
@connection = Fog::XML::Connection.new("#{@scheme}://#{@host}:#{@port}#{@path}", @persistent, @connection_options)
end
def reload
@connection.reset
end
private
def setup_credentials(options)
@aws_access_key_id = options[:aws_access_key_id]
@aws_secret_access_key = options[:aws_secret_access_key]
@aws_session_token = options[:aws_session_token]
@aws_credentials_expire_at = options[:aws_credentials_expire_at]
if (@aws_access_key_id && @aws_secret_access_key)
@signer = Fog::AWS::SignatureV4.new(@aws_access_key_id, @aws_secret_access_key, @region, 'sts')
end
end
def request(params)
if (@signer == nil)
raise AwsAccessKeysMissing.new("Can't make unsigned requests, need aws_access_key_id and aws_secret_access_key")
end
idempotent = params.delete(:idempotent)
parser = params.delete(:parser)
body, headers = Fog::AWS.signed_params_v4(
params,
{ 'Content-Type' => 'application/x-www-form-urlencoded' },
{
:method => 'POST',
:aws_session_token => @aws_session_token,
:signer => @signer,
:host => @host,
:path => @path,
:port => @port,
:version => '2011-06-15'
}
)
if @instrumentor
@instrumentor.instrument("#{@instrumentor_name}.request", params) do
_request(body, headers, idempotent, parser)
end
else
_request(body, headers, idempotent, parser)
end
end
def request_unsigned(params)
idempotent = params.delete(:idempotent)
parser = params.delete(:parser)
params['Version'] = '2011-06-15'
headers = { 'Content-Type' => 'application/x-www-form-urlencoded', 'Host' => @host }
body = ''
for key in params.keys.sort
unless (value = params[key]).nil?
body << "#{key}=#{Fog::AWS.escape(value.to_s)}&"
end
end
body.chop!
if @instrumentor
@instrumentor.instrument("#{@instrumentor_name}.request", params) do
_request(body, headers, idempotent, parser)
end
else
_request(body, headers, idempotent, parser)
end
end
def _request(body, headers, idempotent, parser)
@connection.request({
:body => body,
:expects => 200,
:idempotent => idempotent,
:headers => headers,
:method => 'POST',
:parser => parser
})
rescue Excon::Errors::HTTPStatusError => error
match = Fog::AWS::Errors.match_error(error)
raise if match.empty?
raise case match[:code]
when 'EntityAlreadyExists', 'KeyPairMismatch', 'LimitExceeded', 'MalformedCertificate', 'ValidationError'
Fog::AWS::STS.const_get(match[:code]).slurp(error, match[:message])
else
Fog::AWS::STS::Error.slurp(error, "#{match[:code]} => #{match[:message]}")
end
end
end
end
end
end
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