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#--
# Author:: Daniel DeLeo (<dan@opscode.com>)
# Copyright:: Copyright (c) 2013 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'chef/http/auth_credentials'
require 'chef/exceptions'
require 'openssl'
class Chef
class HTTP
class Authenticator
DEFAULT_SERVER_API_VERSION = "1"
attr_reader :signing_key_filename
attr_reader :raw_key
attr_reader :attr_names
attr_reader :auth_credentials
attr_accessor :sign_request
def initialize(opts={})
@raw_key = nil
@sign_request = true
@signing_key_filename = opts[:signing_key_filename]
@key = load_signing_key(opts[:signing_key_filename], opts[:raw_key])
@auth_credentials = AuthCredentials.new(opts[:client_name], @key)
if opts[:api_version]
@api_version = opts[:api_version]
else
@api_version = DEFAULT_SERVER_API_VERSION
end
end
def handle_request(method, url, headers={}, data=false)
headers.merge!({'X-Ops-Server-API-Version' => @api_version})
headers.merge!(authentication_headers(method, url, data, headers)) if sign_requests?
[method, url, headers, data]
end
def handle_response(http_response, rest_request, return_value)
[http_response, rest_request, return_value]
end
def stream_response_handler(response)
nil
end
def handle_stream_complete(http_response, rest_request, return_value)
[http_response, rest_request, return_value]
end
def sign_requests?
auth_credentials.sign_requests? && @sign_request
end
def client_name
@auth_credentials.client_name
end
def load_signing_key(key_file, raw_key = nil)
if (!!key_file)
@raw_key = IO.read(key_file).strip
elsif (!!raw_key)
@raw_key = raw_key.strip
else
return nil
end
@key = OpenSSL::PKey::RSA.new(@raw_key)
rescue SystemCallError, IOError => e
Chef::Log.warn "Failed to read the private key #{key_file}: #{e.inspect}"
raise Chef::Exceptions::PrivateKeyMissing, "I cannot read #{key_file}, which you told me to use to sign requests!"
rescue OpenSSL::PKey::RSAError
msg = "The file #{key_file} or :raw_key option does not contain a correctly formatted private key.\n"
msg << "The key file should begin with '-----BEGIN RSA PRIVATE KEY-----' and end with '-----END RSA PRIVATE KEY-----'"
raise Chef::Exceptions::InvalidPrivateKey, msg
end
def authentication_headers(method, url, json_body=nil, headers=nil)
request_params = {
:http_method => method,
:path => url.path,
:body => json_body,
:host => "#{url.host}:#{url.port}",
:headers => headers
}
request_params[:body] ||= ""
auth_credentials.signature_headers(request_params)
end
end
end
end
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