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How to use event_type_matches method in localstack

Best Python code snippet using localstack_python

34089_s3_listener.py

Source:34089_s3_listener.py

...23# set up logger24LOGGER = logging.getLogger(__name__)25# XML namespace constants26XMLNS_S3 = 'http://s3.amazonaws.com/doc/2006-03-01/'27def event_type_matches(events, action, api_method):28    """ check whether any of the event types in `events` matches the29        given `action` and `api_method`, and return the first match. """30    for event in events:31        regex = event.replace('*', '[^:]*')32        action_string = 's3:%s:%s' % (action, api_method)33        match = re.match(regex, action_string)34        if match:35            return match36    return False37def filter_rules_match(filters, object_path):38    """ check whether the given object path matches all of the given filters """39    filters = filters or {}40    key_filter = filters.get('S3Key', {})41    for rule in key_filter.get('FilterRule', []):42        if rule['Name'] == 'prefix':43            if not prefix_with_slash(object_path).startswith(prefix_with_slash(rule['Value'])):44                return False45        elif rule['Name'] == 'suffix':46            if not object_path.endswith(rule['Value']):47                return False48        else:49            LOGGER.warning('Unknown filter name: "%s"' % rule['Name'])50    return True51def prefix_with_slash(s):52    return s if s[0] == '/' else '/%s' % s53def get_event_message(event_name, bucket_name, file_name='testfile.txt', file_size=1024):54    # Based on: http://docs.aws.amazon.com/AmazonS3/latest/dev/notification-content-structure.html55    return {56        'Records': [{57            'eventVersion': '2.0',58            'eventSource': 'aws:s3',59            'awsRegion': DEFAULT_REGION,60            'eventTime': timestamp(format=TIMESTAMP_FORMAT_MILLIS),61            'eventName': event_name,62            'userIdentity': {63                'principalId': 'AIDAJDPLRKLG7UEXAMPLE'64            },65            'requestParameters': {66                'sourceIPAddress': '127.0.0.1'  # TODO determine real source IP67            },68            'responseElements': {69                'x-amz-request-id': short_uid(),70                'x-amz-id-2': 'eftixk72aD6Ap51TnqcoF8eFidJG9Z/2'  # Amazon S3 host that processed the request71            },72            's3': {73                's3SchemaVersion': '1.0',74                'configurationId': 'testConfigRule',75                'bucket': {76                    'name': bucket_name,77                    'ownerIdentity': {78                        'principalId': 'A3NL1KOZZKExample'79                    },80                    'arn': 'arn:aws:s3:::%s' % bucket_name81                },82                'object': {83                    'key': file_name,84                    'size': file_size,85                    'eTag': 'd41d8cd98f00b204e9800998ecf8427e',86                    'versionId': '096fKKXTRTtl3on89fVO.nfljtsv6qko',87                    'sequencer': '0055AED6DCD90281E5'88                }89            }90        }]91    }92def queue_url_for_arn(queue_arn):93    sqs_client = aws_stack.connect_to_service('sqs')94    parts = queue_arn.split(':')95    return sqs_client.get_queue_url(QueueName=parts[5],96        QueueOwnerAWSAccountId=parts[4])['QueueUrl']97def send_notifications(method, bucket_name, object_path):98    for bucket, config in iteritems(S3_NOTIFICATIONS):99        if bucket == bucket_name:100            action = {'PUT': 'ObjectCreated', 'DELETE': 'ObjectRemoved'}[method]101            # TODO: support more detailed methods, e.g., DeleteMarkerCreated102            # http://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html103            api_method = {'PUT': 'Put', 'DELETE': 'Delete'}[method]104            event_name = '%s:%s' % (action, api_method)105            if (event_type_matches(config['Event'], action, api_method) and106                    filter_rules_match(config.get('Filter'), object_path)):107                # send notification108                message = get_event_message(109                    event_name=event_name, bucket_name=bucket_name,110                    file_name=urlparse.urlparse(object_path[1:]).path111                )112                message = json.dumps(message)113                if config.get('Queue'):114                    sqs_client = aws_stack.connect_to_service('sqs')115                    try:116                        queue_url = queue_url_for_arn(config['Queue'])117                        sqs_client.send_message(QueueUrl=queue_url, MessageBody=message)118                    except Exception as e:119                        LOGGER.warning('Unable to send notification for S3 bucket "%s" to SQS queue "%s": %s' %...

s3_listener.py

Source:s3_listener.py

...23# set up logger24LOGGER = logging.getLogger(__name__)25# XML namespace constants26XMLNS_S3 = 'http://s3.amazonaws.com/doc/2006-03-01/'27def event_type_matches(events, action, api_method):28    ''' check whether any of the event types in `events` matches the29        given `action` and `api_method`, and return the first match. '''30    for event in events:31        regex = event.replace('*', '[^:]*')32        action_string = 's3:%s:%s' % (action, api_method)33        match = re.match(regex, action_string)34        if match:35            return match36    return False37def filter_rules_match(filters, object_path):38    ''' check whether the given object path matches all of the given filters '''39    filters = filters or {}40    key_filter = filters.get('S3Key', {})41    for rule in key_filter.get('FilterRule', []):42        if rule['Name'] == 'prefix':43            if not prefix_with_slash(object_path).startswith(prefix_with_slash(rule['Value'])):44                return False45        elif rule['Name'] == 'suffix':46            if not object_path.endswith(rule['Value']):47                return False48        else:49            LOGGER.warning('Unknown filter name: "%s"' % rule['Name'])50    return True51def prefix_with_slash(s):52    return s if s[0] == '/' else '/%s' % s53def get_event_message(event_name, bucket_name, file_name='testfile.txt', file_size=1024):54    # Based on: http://docs.aws.amazon.com/AmazonS3/latest/dev/notification-content-structure.html55    return {56        'Records': [{57            'eventVersion': '2.0',58            'eventSource': 'aws:s3',59            'awsRegion': DEFAULT_REGION,60            'eventTime': timestamp(format=TIMESTAMP_FORMAT_MILLIS),61            'eventName': event_name,62            'userIdentity': {63                'principalId': 'AIDAJDPLRKLG7UEXAMPLE'64            },65            'requestParameters': {66                'sourceIPAddress': '127.0.0.1'  # TODO determine real source IP67            },68            'responseElements': {69                'x-amz-request-id': short_uid(),70                'x-amz-id-2': 'eftixk72aD6Ap51TnqcoF8eFidJG9Z/2'  # Amazon S3 host that processed the request71            },72            's3': {73                's3SchemaVersion': '1.0',74                'configurationId': 'testConfigRule',75                'bucket': {76                    'name': bucket_name,77                    'ownerIdentity': {78                        'principalId': 'A3NL1KOZZKExample'79                    },80                    'arn': 'arn:aws:s3:::%s' % bucket_name81                },82                'object': {83                    'key': file_name,84                    'size': file_size,85                    'eTag': 'd41d8cd98f00b204e9800998ecf8427e',86                    'versionId': '096fKKXTRTtl3on89fVO.nfljtsv6qko',87                    'sequencer': '0055AED6DCD90281E5'88                }89            }90        }]91    }92def queue_url_for_arn(queue_arn):93    sqs_client = aws_stack.connect_to_service('sqs')94    parts = queue_arn.split(':')95    return sqs_client.get_queue_url(QueueName=parts[5],96        QueueOwnerAWSAccountId=parts[4])['QueueUrl']97def send_notifications(method, bucket_name, object_path):98    for bucket, config in iteritems(S3_NOTIFICATIONS):99        if bucket == bucket_name:100            action = {'PUT': 'ObjectCreated', 'DELETE': 'ObjectRemoved'}[method]101            # TODO: support more detailed methods, e.g., DeleteMarkerCreated102            # http://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html103            api_method = {'PUT': 'Put', 'DELETE': 'Delete'}[method]104            event_name = '%s:%s' % (action, api_method)105            if (event_type_matches(config['Event'], action, api_method) and106                    filter_rules_match(config.get('Filter'), object_path)):107                # send notification108                message = get_event_message(109                    event_name=event_name, bucket_name=bucket_name,110                    file_name=urlparse.urlparse(object_path[1:]).path111                )112                message = json.dumps(message)113                if config.get('Queue'):114                    sqs_client = aws_stack.connect_to_service('sqs')115                    try:116                        queue_url = queue_url_for_arn(config['Queue'])117                        sqs_client.send_message(QueueUrl=queue_url, MessageBody=message)118                    except Exception as e:119                        LOGGER.warning('Unable to send notification for S3 bucket "%s" to SQS queue "%s": %s' %...

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