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8f5a5f8105
- Also convert the files info to upper() for comparison rather than lower because original file names are in upper case. The unit tests contain examples of the returned lists.
127 lines
4.1 KiB
Python
127 lines
4.1 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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from notifications_utils.s3 import s3upload as utils_s3upload
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FILE_LOCATION_STRUCTURE = 'service-{}-notify/{}.csv'
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LETTERS_PDF_FILE_LOCATION_STRUCTURE = '{folder}/NOTIFY.{reference}.{duplex}.{letter_class}.{colour}.{crown}.{date}.pdf'
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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 get_job_from_s3(service_id, job_id):
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bucket_name = current_app.config['CSV_UPLOAD_BUCKET_NAME']
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file_location = FILE_LOCATION_STRUCTURE.format(service_id, job_id)
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obj = get_s3_object(bucket_name, file_location)
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return obj.get()['Body'].read().decode('utf-8')
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def remove_job_from_s3(service_id, job_id):
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bucket_name = current_app.config['CSV_UPLOAD_BUCKET_NAME']
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file_location = FILE_LOCATION_STRUCTURE.format(service_id, job_id)
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return remove_s3_object(bucket_name, file_location)
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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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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 remove_transformed_dvla_file(job_id):
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bucket_name = current_app.config['DVLA_BUCKETS']['job']
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file_location = '{}-dvla-job.text'.format(job_id)
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obj = get_s3_object(bucket_name, file_location)
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return obj.delete()
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def upload_letters_pdf(reference, crown, filedata):
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now = datetime.utcnow()
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print_datetime = now
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if now.time() > current_app.config.get('LETTER_PROCESSING_DEADLINE'):
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print_datetime = now + timedelta(days=1)
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upload_file_name = LETTERS_PDF_FILE_LOCATION_STRUCTURE.format(
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folder=print_datetime.date(),
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reference=reference,
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duplex="D",
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letter_class="2",
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colour="C",
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crown="C" if crown else "N",
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date=now.strftime('%Y%m%d%H%M%S')
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).upper()
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utils_s3upload(
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filedata=filedata,
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region=current_app.config['AWS_REGION'],
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bucket_name=current_app.config['LETTERS_PDF_BUCKET_NAME'],
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file_location=upload_file_name
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)
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current_app.logger.info("Uploading letters PDF {} to {}".format(
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upload_file_name, current_app.config['LETTERS_PDF_BUCKET_NAME']))
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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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