def authenticate(next_service, username, password=nil)
debug { "beginning authentication of `#{username}'" }
transport.send_message(transport.service_request("ssh-userauth"))
message = expect_message(SERVICE_ACCEPT)
key_manager = KeyManager.new(logger, options)
keys.each { |key| key_manager.add(key) } unless keys.empty?
key_data.each { |key2| key_manager.add_key_data(key2) } unless key_data.empty?
attempted = []
@auth_methods.each do |name|
next unless @allowed_auth_methods.include?(name)
attempted << name
debug { "trying #{name}" }
method = Methods.const_get(name.split(/\W+/).map { |p| p.capitalize }.join).new(self, :key_manager => key_manager)
return true if method.authenticate(next_service, username, password)
end
error { "all authorization methods failed (tried #{attempted.join(', ')})" }
return false
ensure
key_manager.finish if key_manager
end