mirror of
https://github.com/GSA/notifications-api.git
synced 2026-01-01 21:31:58 -05:00
a14d5f0225
We no longer puts files in these s3 buckets (and have in fact deleted the buckets) therefore this task is redundant and can be removed.
115 lines
3.4 KiB
Python
115 lines
3.4 KiB
Python
from datetime import datetime, timedelta
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from flask import current_app
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import pytz
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from boto3 import client, resource
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import botocore
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FILE_LOCATION_STRUCTURE = 'service-{}-notify/{}.csv'
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def get_s3_file(bucket_name, file_location):
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s3_file = get_s3_object(bucket_name, file_location)
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return s3_file.get()['Body'].read().decode('utf-8')
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def get_s3_object(bucket_name, file_location):
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s3 = resource('s3')
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return s3.Object(bucket_name, file_location)
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def file_exists(bucket_name, file_location):
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try:
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# try and access metadata of object
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get_s3_object(bucket_name, file_location).metadata
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return True
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except botocore.exceptions.ClientError as e:
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if e.response['ResponseMetadata']['HTTPStatusCode'] == 404:
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return False
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raise
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def get_job_location(service_id, job_id):
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return (
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current_app.config['CSV_UPLOAD_BUCKET_NAME'],
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FILE_LOCATION_STRUCTURE.format(service_id, job_id),
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)
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def get_job_and_metadata_from_s3(service_id, job_id):
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obj = get_s3_object(*get_job_location(service_id, job_id))
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return obj.get()['Body'].read().decode('utf-8'), obj.get()['Metadata']
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def get_job_from_s3(service_id, job_id):
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obj = get_s3_object(*get_job_location(service_id, job_id))
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return obj.get()['Body'].read().decode('utf-8')
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def get_job_metadata_from_s3(service_id, job_id):
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obj = get_s3_object(*get_job_location(service_id, job_id))
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return obj.get()['Metadata']
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def remove_job_from_s3(service_id, job_id):
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return remove_s3_object(*get_job_location(service_id, job_id))
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def get_s3_bucket_objects(bucket_name, subfolder='', older_than=7, limit_days=2):
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boto_client = client('s3', current_app.config['AWS_REGION'])
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paginator = boto_client.get_paginator('list_objects_v2')
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page_iterator = paginator.paginate(
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Bucket=bucket_name,
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Prefix=subfolder
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)
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all_objects_in_bucket = []
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for page in page_iterator:
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if page.get('Contents'):
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all_objects_in_bucket.extend(page['Contents'])
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return all_objects_in_bucket
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def filter_s3_bucket_objects_within_date_range(bucket_objects, older_than=7, limit_days=2):
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"""
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S3 returns the Object['LastModified'] as an 'offset-aware' timestamp so the
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date range filter must take this into account.
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Additionally an additional Object is returned by S3 corresponding to the
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container directory. This is redundant and should be removed.
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"""
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end_date = datetime.now(tz=pytz.utc) - timedelta(days=older_than)
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start_date = end_date - timedelta(days=limit_days)
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filtered_items = [item for item in bucket_objects if all([
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not item['Key'].endswith('/'),
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item['LastModified'] > start_date,
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item['LastModified'] < end_date
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])]
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return filtered_items
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def remove_s3_object(bucket_name, object_key):
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obj = get_s3_object(bucket_name, object_key)
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return obj.delete()
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def get_list_of_files_by_suffix(bucket_name, subfolder='', suffix='', last_modified=None):
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s3_client = client('s3', current_app.config['AWS_REGION'])
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paginator = s3_client.get_paginator('list_objects_v2')
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page_iterator = paginator.paginate(
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Bucket=bucket_name,
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Prefix=subfolder
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)
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for page in page_iterator:
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for obj in page.get('Contents', []):
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key = obj['Key']
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if key.lower().endswith(suffix.lower()):
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if not last_modified or obj['LastModified'] >= last_modified:
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yield key
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