class AcsClient: LOG_FORMAT = '%(thread)d %(asctime)s %(name)s %(levelname)s %(message)s' def __init__(self, ak=None, secret=None, region_id="cn-hangzhou", auto_retry=True, max_retry_time=None, user_agent=None, port=80, connect_timeout=None, timeout=None, public_key_id=None, private_key=None, session_period=3600, credential=None, debug=False, verify=None): """ constructor for AcsClient :param ak: String, access key id :param secret: String, access key secret :param region_id: String, region id :param auto_retry: Boolean :param max_retry_time: Number :return: """ self._max_retry_num = max_retry_time self._auto_retry = auto_retry self._ak = ak self._secret = secret self._region_id = region_id self._user_agent = user_agent self._port = port self._connect_timeout = connect_timeout self._read_timeout = timeout self._extra_user_agent = {} self._verify = verify credential = { 'ak': ak, 'secret': secret, 'public_key_id': public_key_id, 'private_key': private_key, 'session_period': session_period, 'credential': credential, } self._signer = SignerFactory.get_signer( credential, region_id, self._implementation_of_do_action, debug) self._endpoint_resolver = DefaultEndpointResolver(self) if self._auto_retry: self._retry_policy = retry_policy.get_default_retry_policy( max_retry_times=self._max_retry_num) else: self._retry_policy = retry_policy.NO_RETRY_POLICY def get_region_id(self): return self._region_id def get_access_key(self): return self._ak def get_access_secret(self): return self._secret def is_auto_retry(self): return self._auto_retry def get_max_retry_num(self): return self._max_retry_num def get_user_agent(self): return self._user_agent def get_verify(self): return self._verify def set_region_id(self, region): self._region_id = region def set_max_retry_num(self, num): self._max_retry_num = num def set_auto_retry(self, flag): """ set whether or not the client perform auto-retry :param flag: Booleans :return: None """ self._auto_retry = flag def set_user_agent(self, agent): """ User agent set to client will overwrite the request setting. :param agent: :return: """ self._user_agent = agent def set_verify(self, verify): self._verify = verify def append_user_agent(self, key, value): self._extra_user_agent.update({key: value}) @staticmethod def user_agent_header(): base = '%s (%s %s;%s)' \ % ('AlibabaCloud', platform.system(), platform.release(), platform.machine() ) return base @staticmethod def default_user_agent(): default_agent = OrderedDict() default_agent['Python'] = platform.python_version() default_agent['Core'] = __import__('aliyunsdkcore').__version__ default_agent['python-requests'] = __import__( 'aliyunsdkcore.vendored.requests.__version__', globals(), locals(), ['vendored', 'requests', '__version__'], 0).__version__ return CaseInsensitiveDict(default_agent) def client_user_agent(self): client_user_agent = {} if self.get_user_agent() is not None: client_user_agent.update({'client': self.get_user_agent()}) else: client_user_agent.update(self._extra_user_agent) return CaseInsensitiveDict(client_user_agent) def get_port(self): return self._port def get_location_service(self): return None @staticmethod def merge_user_agent(default_agent, extra_agent): if default_agent is None: return extra_agent if extra_agent is None: return default_agent user_agent = default_agent.copy() for key, value in extra_agent.items(): if key not in default_agent: user_agent[key] = value return user_agent def handle_extra_agent(self, request): client_agent = self.client_user_agent() request_agent = request.request_user_agent() if client_agent is None: return request_agent if request_agent is None: return client_agent for key in request_agent: if key in client_agent: client_agent.pop(key) client_agent.update(request_agent) return client_agent def _make_http_response(self, endpoint, request, read_timeout, connect_timeout, specific_signer=None): body_params = request.get_body_params() if body_params: body = urlencode(body_params) request.set_content(body) request.set_content_type(format_type.APPLICATION_FORM) elif request.get_content( ) and "Content-Type" not in request.get_headers(): request.set_content_type(format_type.APPLICATION_OCTET_STREAM) method = request.get_method() signer = self._signer if specific_signer is None else specific_signer header, url = signer.sign(self._region_id, request) base = self.user_agent_header() extra_agent = self.handle_extra_agent(request) default_agent = self.default_user_agent() user_agent = self.merge_user_agent(default_agent, extra_agent) for key, value in user_agent.items(): base += ' %s/%s' % (key, value) header['User-Agent'] = base header['x-sdk-client'] = 'python/2.0.0' protocol = request.get_protocol_type() response = HttpResponse(endpoint, url, method, header, protocol, request.get_content(), self._port, read_timeout=read_timeout, connect_timeout=connect_timeout, verify=self.get_verify()) if body_params: body = urlencode(request.get_body_params()) response.set_content(body, "utf-8", format_type.APPLICATION_FORM) return response def _implementation_of_do_action(self, request, signer=None): if not isinstance(request, AcsRequest): raise ClientException(error_code.SDK_INVALID_REQUEST, error_msg.get_msg('SDK_INVALID_REQUEST')) # modify Accept-Encoding request.add_header('Accept-Encoding', 'identity') if isinstance(request, CommonRequest): request.trans_to_acs_request() if request.endpoint: endpoint = request.endpoint else: endpoint = self._resolve_endpoint(request) return self._handle_retry_and_timeout(endpoint, request, signer) def implementation_of_do_action(self, request, signer=None): # keep compatible warnings.warn("implementation_of_do_action() method is deprecated", DeprecationWarning) status, headers, body, exception = self._implementation_of_do_action( request, signer) return status, headers, body def _add_request_client_token(self, request): if hasattr(request, "set_ClientToken") and hasattr( request, "get_ClientToken"): client_token = request.get_ClientToken() if not client_token: # ClientToken has not been set client_token = aliyunsdkcore.utils.parameter_helper.get_uuid( ) # up to 60 chars request.set_ClientToken(client_token) def _get_request_read_timeout(self, request): # TODO: replace it with a timeout_handler if request._request_read_timeout: return request._request_read_timeout # if self._timeout: # return self._timeout if self._read_timeout: return self._read_timeout if request.get_product() is None: return DEFAULT_READ_TIMEOUT path = '"{0}"."{1}"."{2}"'.format(request.get_product().lower(), request.get_version(), request.get_action_name()) timeout = jmespath.search(path, _api_timeout_config_data) if timeout is None: return DEFAULT_READ_TIMEOUT else: aliyunsdkcore.utils.validation.assert_integer_positive( timeout, "timeout") return max(timeout, DEFAULT_READ_TIMEOUT) def _get_request_connect_timeout(self, request): if request._request_connect_timeout: return request._request_connect_timeout if self._connect_timeout: return self._connect_timeout return DEFAULT_CONNECTION_TIMEOUT def _handle_retry_and_timeout(self, endpoint, request, signer): # TODO: replace it with a retry_handler # it's a temporary implementation. the long-term plan will be a group a normalized handlers # which contains retry_handler and timeout_handler # decide whether we should initialize a ClientToken for the request retry_policy_context = RetryPolicyContext(request, None, 0, None) if self._retry_policy.should_retry(retry_policy_context) & \ RetryCondition.SHOULD_RETRY_WITH_CLIENT_TOKEN: self._add_request_client_token(request) request_read_timeout = self._get_request_read_timeout(request) request_connect_timeout = self._get_request_connect_timeout(request) retries = 0 while True: status, headers, body, exception = self._handle_single_request( endpoint, request, request_read_timeout, request_connect_timeout, signer) retry_policy_context = RetryPolicyContext(request, exception, retries, status) retryable = self._retry_policy.should_retry(retry_policy_context) if retryable & RetryCondition.NO_RETRY: break logger.debug("Retry needed. Request:%s Retries :%d", request.get_action_name(), retries) retry_policy_context.retryable = retryable time_to_sleep = self._retry_policy.compute_delay_before_next_retry( retry_policy_context) time.sleep(time_to_sleep / 1000.0) retries += 1 if isinstance(exception, ClientException): raise exception return status, headers, body, exception def _handle_single_request(self, endpoint, request, read_timeout, connect_timeout, signer): http_response = self._make_http_response(endpoint, request, read_timeout, connect_timeout, signer) params = copy.deepcopy(request.get_query_params()) params.pop('AccessKeyId', None) logger.debug('Request received. Product:%s Endpoint:%s Params: %s', request.get_product(), endpoint, str(params)) # Do the actual network thing try: status, headers, body = http_response.get_response_object() except IOError as e: exception = ClientException(error_code.SDK_HTTP_ERROR, str(e)) logger.error( "HttpError occurred. Host:%s SDK-Version:%s ClientException:%s", endpoint, aliyunsdkcore.__version__, str(exception)) return None, None, None, exception exception = self._get_server_exception(status, body, endpoint, request.string_to_sign) return status, headers, body, exception @staticmethod def _parse_error_info_from_response_body(response_body): error_code_to_return = error_code.SDK_UNKNOWN_SERVER_ERROR # TODO handle if response_body is too big error_message_to_return = "ServerResponseBody: " + str(response_body) try: body_obj = json.loads(response_body) if 'Code' in body_obj: error_code_to_return = body_obj['Code'] if 'Message' in body_obj: error_message_to_return = body_obj['Message'] except ValueError: # failed to parse body as json format logger.warning( 'Failed to parse response as json format. Response:%s', response_body) return error_code_to_return, error_message_to_return def _get_server_exception(self, http_status, response_body, endpoint, string_to_sign): request_id = None try: body_obj = json.loads(response_body.decode('utf-8')) request_id = body_obj.get('RequestId') except (ValueError, TypeError, AttributeError): # in case the response body is not a json string, return the raw # data instead logger.warning( 'Failed to parse response as json format. Response:%s', response_body) if http_status < codes.OK or http_status >= codes.MULTIPLE_CHOICES: server_error_code, server_error_message = self._parse_error_info_from_response_body( response_body.decode('utf-8')) if http_status == codes.BAD_REQUEST and server_error_code == 'SignatureDoesNotMatch': if string_to_sign == server_error_message.split(':')[1]: server_error_code = 'InvalidAccessKeySecret' server_error_message = 'The AccessKeySecret is incorrect. ' \ 'Please check your AccessKeyId and AccessKeySecret.' exception = ServerException(server_error_code, server_error_message, http_status=http_status, request_id=request_id) logger.error( "ServerException occurred. Host:%s SDK-Version:%s ServerException:%s", endpoint, aliyunsdkcore.__version__, str(exception)) return exception def do_action_with_exception(self, acs_request): # set server response format as json, because this function will # parse the response so which format doesn't matter acs_request.set_accept_format('JSON') status, headers, body, exception = self._implementation_of_do_action( acs_request) if exception: raise exception logger.debug('Response received. Product:%s Response-body: %s', acs_request.get_product(), body) return body def _resolve_endpoint(self, request): resolve_request = ResolveEndpointRequest( self._region_id, request.get_product(), request.get_location_service_code(), request.get_location_endpoint_type(), ) resolve_request.request_network = request.request_network resolve_request.product_suffix = request.product_suffix resolve_request.endpoint_map = request.endpoint_map resolve_request.endpoint_regional = request.endpoint_regional return self._endpoint_resolver.resolve(resolve_request) def do_action(self, acs_request): warnings.warn( "do_action() method is deprecated, please use do_action_with_exception() instead.", DeprecationWarning) status, headers, body, exception = self._implementation_of_do_action( acs_request) return body def get_response(self, acs_request): return self.implementation_of_do_action(acs_request) def add_endpoint(self, region_id, product_code, endpoint): self._endpoint_resolver.put_endpoint_entry(region_id, product_code, endpoint) def set_stream_logger(self, log_level=logging.DEBUG, logger_name='aliyunsdkcore', stream=None, format_string=None): log = logging.getLogger(logger_name) log.setLevel(log_level) ch = logging.StreamHandler(stream) ch.setLevel(log_level) if format_string is None: format_string = self.LOG_FORMAT formatter = logging.Formatter(format_string) ch.setFormatter(formatter) log.addHandler(ch) def set_file_logger(self, path, log_level=logging.DEBUG, logger_name='aliyunsdkcore'): log = logging.getLogger(logger_name) log.setLevel(log_level) fh = logging.FileHandler(path) fh.setLevel(log_level) formatter = logging.Formatter(self.LOG_FORMAT) fh.setFormatter(formatter) log.addHandler(fh)
class AcsClient: def __init__(self, ak=None, secret=None, region_id="cn-hangzhou", auto_retry=True, max_retry_time=3, user_agent=None, port=80, timeout=DEFAULT_SDK_CONNECTION_TIMEOUT_IN_SECONDS, public_key_id=None, private_key=None, session_period=3600, credential=None, debug=False): """ constructor for AcsClient :param ak: String, access key id :param secret: String, access key secret :param region_id: String, region id :param auto_retry: Boolean :param max_retry_time: Number :return: """ self.__max_retry_num = max_retry_time self.__auto_retry = auto_retry self.__ak = ak self.__secret = secret self.__region_id = region_id self.__user_agent = user_agent self._port = port self._timeout = timeout # if true, do_action() will throw a ClientException that contains URL self._url_test_flag = False credential = { 'ak': ak, 'secret': secret, 'public_key_id': public_key_id, 'private_key': private_key, 'session_period': session_period, 'credential': credential, } self._signer = SignerFactory.get_signer( credential, region_id, self.implementation_of_do_action, debug) self._endpoint_resolver = DefaultEndpointResolver(self) def get_region_id(self): """ :return: String """ return self.__region_id def get_access_key(self): """ :return: String """ return self.__ak def get_access_secret(self): """ :return: String """ return self.__secret def is_auto_retry(self): """ :return:Boolean """ return self.__auto_retry def get_max_retry_num(self): """ :return: Number """ return self.__max_retry_num def get_user_agent(self): return self.__user_agent def set_region_id(self, region): self.__region_id = region def set_max_retry_num(self, num): """ set auto retry number :param num: Numbers :return: None """ self.__max_retry_num = num def set_auto_retry(self, flag): """ set whether or not the client perform auto-retry :param flag: Booleans :return: None """ self.__auto_retry = flag def set_user_agent(self, agent): """ User agent set to client will overwrite the request setting. :param agent: :return: """ self.__user_agent = agent def get_port(self): return self._port def get_location_service(self): return None def _make_http_response(self, endpoint, request, specific_signer=None): body_params = request.get_body_params() if body_params: body = urllib.parse.urlencode(body_params) request.set_content(body) request.set_content_type(format_type.APPLICATION_FORM) elif request.get_content( ) and "Content-Type" not in request.get_headers(): request.set_content_type(format_type.APPLICATION_OCTET_STREAM) method = request.get_method() signer = self._signer if specific_signer is None else specific_signer header, url = signer.sign(self.__region_id, request) if self.get_user_agent() is not None: header['User-Agent'] = self.get_user_agent() if header is None: header = {} header['x-sdk-client'] = 'python/2.0.0' protocol = request.get_protocol_type() response = HttpResponse(endpoint, url, method, header, protocol, request.get_content(), self._port, timeout=self._timeout) if body_params: body = urllib.parse.urlencode(request.get_body_params()) response.set_content(body, "utf-8", format_type.APPLICATION_FORM) return response def implementation_of_do_action(self, request, signer=None): if not isinstance(request, AcsRequest): raise ClientException(error_code.SDK_INVALID_REQUEST, error_msg.get_msg('SDK_INVALID_REQUEST')) # add core version core_version = __import__('aliyunsdkcore').__version__ request.add_header('x-sdk-core-version', core_version) if isinstance(request, CommonRequest): request.trans_to_acs_request() if request.endpoint: endpoint = request.endpoint else: endpoint = self._resolve_endpoint(request) http_response = self._make_http_response(endpoint, request, signer) if self._url_test_flag: raise ClientException("URLTestFlagIsSet", http_response.get_url()) # Do the actual network thing try: status, headers, body = http_response.get_response_object() return status, headers, body except IOError as e: raise ClientException( error_code.SDK_SERVER_UNREACHABLE, error_msg.get_msg('SDK_SERVER_UNREACHABLE') + ': ' + str(e)) @staticmethod def _parse_error_info_from_response_body(response_body): try: body_obj = json.loads(response_body.decode('utf-8')) if 'Code' in body_obj and 'Message' in body_obj: return body_obj['Code'], body_obj['Message'] else: return (error_code.SDK_UNKNOWN_SERVER_ERROR, response_body) except ValueError: # failed to parse body as json format return (error_code.SDK_UNKNOWN_SERVER_ERROR, error_msg.get_msg('SDK_UNKNOWN_SERVER_ERROR')) def do_action_with_exception(self, acs_request): # set server response format as json, because thie function will # parse the response so which format doesn't matter acs_request.set_accept_format('JSON') status, headers, body = self.implementation_of_do_action(acs_request) request_id = None try: body_obj = json.loads(body.decode('utf-8')) request_id = body_obj.get('RequestId') except ValueError or TypeError or AttributeError: # in case the response body is not a json string, return the raw # data instead pass if status < http.client.OK or status >= http.client.MULTIPLE_CHOICES: server_error_code, server_error_message = self._parse_error_info_from_response_body( body) raise ServerException(server_error_code, server_error_message, http_status=status, request_id=request_id) return body def _resolve_endpoint(self, request): resolve_request = ResolveEndpointRequest( self.__region_id, request.get_product(), request.get_location_service_code(), request.get_location_endpoint_type(), ) endpoint = self._endpoint_resolver.resolve(resolve_request) if endpoint.endswith("endpoint-test.exception.com"): # For endpoint testability, if the endpoint is xxxx.endpoint-test.special.com # throw a client exception with this endpoint raise ClientException(error_code.SDK_ENDPOINT_TESTABILITY, endpoint) return endpoint def do_action(self, acs_request): warnings.warn( "do_action() method is deprecated, please use do_action_with_exception() instead.", DeprecationWarning) status, headers, body = self.implementation_of_do_action(acs_request) return body def get_response(self, acs_request): status, headers, body = self.implementation_of_do_action(acs_request) return status, headers, body def add_endpoint(self, region_id, product_code, endpoint): self._endpoint_resolver.put_endpoint_entry(region_id, product_code, endpoint)