class Google::Auth::DefaultCredentials
DefaultCredentials
is used to preload the credentials file, to determine which type of credentials should be loaded.
Public Class Methods
determine_creds_class(json_key_io)
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Reads the input json and determines which creds class to use.
# File lib/googleauth/default_credentials.rb, line 62 def self.determine_creds_class json_key_io json_key = MultiJson.load json_key_io.read key = "type" raise "the json is missing the '#{key}' field" unless json_key.key? key type = json_key[key] case type when "service_account" [json_key, ServiceAccountCredentials] when "authorized_user" [json_key, UserRefreshCredentials] else raise "credentials type '#{type}' is not supported" end end
make_creds(options = {})
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override CredentialsLoader#make_creds
to use the class determined by loading the json.
# File lib/googleauth/default_credentials.rb, line 33 def self.make_creds options = {} json_key_io = options[:json_key_io] if json_key_io json_key, clz = determine_creds_class json_key_io warn_if_cloud_sdk_credentials json_key["client_id"] io = StringIO.new MultiJson.dump(json_key) clz.make_creds options.merge(json_key_io: io) else warn_if_cloud_sdk_credentials ENV[CredentialsLoader::CLIENT_ID_VAR] clz = read_creds clz.make_creds options end end
read_creds()
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# File lib/googleauth/default_credentials.rb, line 47 def self.read_creds env_var = CredentialsLoader::ACCOUNT_TYPE_VAR type = ENV[env_var] raise "#{env_var} is undefined in env" unless type case type when "service_account" ServiceAccountCredentials when "authorized_user" UserRefreshCredentials else raise "credentials type '#{type}' is not supported" end end