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How to use _list_dead_letter_source_queues method in localstack

Best Python code snippet using localstack_python

sqs_listener.py

Source:sqs_listener.py

...122    if headers.get('Host'):123        url = '%s://%s' % (get_service_protocol(), headers['Host'])124    queue_url = '%s%s' % (url, path.partition('?')[0])125    return queue_url126def _list_dead_letter_source_queues(queues, queue_url):127    dead_letter_source_queues = []128    for k, v in queues.items():129        for i, j in v.items():130            if i == 'RedrivePolicy':131                f = json.loads(v[i])132                queue_url_split = queue_url.split('/')133                if queue_url_split[-1] in f['deadLetterTargetArn']:134                    dead_letter_source_queues.append(k)135    return format_list_dl_source_queues_response(dead_letter_source_queues)136def _process_sent_message(path, req_data, headers):137    queue_name = _queue_url(path, req_data, headers).rpartition('/')[2]138    lambda_api.process_sqs_message(queue_name)139def format_list_dl_source_queues_response(queues):140    content_str = """<ListDeadLetterSourceQueuesResponse xmlns="{}">141                        <ListDeadLetterSourceQueuesResult>142                        {}143                        </ListDeadLetterSourceQueuesResult>144                    </ListDeadLetterSourceQueuesResponse>"""145    queue_urls = ''146    for q in queues:147        queue_urls += '<QueueUrl>{}</QueueUrl>'.format(q)148    return content_str.format(XMLNS_SQS, queue_urls)149# extract the external port used by the client to make the request150def get_external_port(headers, request_handler):151    host = headers.get('Host', '')152    if not host:153        forwarded = headers.get('X-Forwarded-For', '').split(',')154        host = forwarded[-2] if len(forwarded) > 2 else forwarded[-1]155    if ':' in host:156        return int(host.split(':')[1])157    if not request_handler or not request_handler.proxy:158        return config.PORT_SQS159    # If we cannot find the Host header, then fall back to the port of the proxy.160    # (note that this could be incorrect, e.g., if running in Docker with a host port that161    # is different from the internal container port, but there is not much else we can do.)162    return request_handler.proxy.port163def validate_empty_message_batch(data, req_data):164    data = to_str(data).split('Entries=')165    if len(data) > 1 and not req_data.get('Entries'):166        return True167    return False168def is_sqs_queue_url(url):169    path = path_from_url(url).partition('?')[0]170    return re.match(r'^/(queue|%s)/[a-zA-Z0-9_-]+$' % constants.TEST_AWS_ACCOUNT_ID, path)171class ProxyListenerSQS(PersistingProxyListener):172    def api_name(self):173        return 'sqs'174    def forward_request(self, method, path, data, headers):175        if method == 'OPTIONS':176            return 200177        req_data = parse_request_data(method, path, data)178        if is_sqs_queue_url(path) and method == 'GET':179            if not headers.get('Authorization'):180                headers['Authorization'] = aws_stack.mock_aws_request_headers(service='sqs')['Authorization']181            method = 'POST'182            req_data = {'Action': 'GetQueueUrl', 'Version': API_VERSION, 'QueueName': path.split('/')[-1]}183        if req_data:184            action = req_data.get('Action')185            if action in ('SendMessage', 'SendMessageBatch') and SQS_BACKEND_IMPL == 'moto':186                # check message contents187                for key, value in req_data.items():188                    if not re.match(MSG_CONTENT_REGEX, str(value)):189                        return make_requests_error(code=400, code_string='InvalidMessageContents',190                            message='Message contains invalid characters')191            elif action == 'SetQueueAttributes':192                # TODO remove this function if we stop using ElasticMQ entirely193                queue_url = _queue_url(path, req_data, headers)194                if SQS_BACKEND_IMPL == 'elasticmq':195                    forward_attrs = _set_queue_attributes(queue_url, req_data)196                    if len(req_data) != len(forward_attrs):197                        # make sure we only forward the supported attributes to the backend198                        return _get_attributes_forward_request(method, path, headers, req_data, forward_attrs)199            elif action == 'DeleteQueue':200                queue_url = _queue_url(path, req_data, headers)201                QUEUE_ATTRIBUTES.pop(queue_url, None)202                sns_listener.unsubscribe_sqs_queue(queue_url)203            elif action == 'ListDeadLetterSourceQueues':204                # TODO remove this function if we stop using ElasticMQ entirely205                queue_url = _queue_url(path, req_data, headers)206                if SQS_BACKEND_IMPL == 'elasticmq':207                    headers = {'content-type': 'application/xhtml+xml'}208                    content_str = _list_dead_letter_source_queues(QUEUE_ATTRIBUTES, queue_url)209                    return requests_response(content_str, headers=headers)210            if 'QueueName' in req_data:211                encoded_data = urlencode(req_data, doseq=True) if method == 'POST' else ''212                modified_url = None213                if method == 'GET':214                    base_path = path.partition('?')[0]215                    modified_url = '%s?%s' % (base_path, urlencode(req_data, doseq=True))216                return Request(data=encoded_data, url=modified_url, headers=headers, method=method)217        return True218    def return_response(self, method, path, data, headers, response, request_handler):219        # persist requests to disk220        super(ProxyListenerSQS, self).return_response(221            method, path, data, headers, response, request_handler222        )...

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