57 lines
1.3 KiB
Python
57 lines
1.3 KiB
Python
from botocore.exceptions import ClientError
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import boto3
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client = boto3.client('s3')
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sts_client = boto3.client('sts')
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def exists(bucket, key):
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response = client.list_objects_v2(
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Bucket=bucket,
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Prefix=key,
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)
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for obj in response.get('Contents', []):
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if obj['Key'] == key:
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return True
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return False
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def get_presigned_url_for_sharing(bucket, expires_in, key, check_exists=False):
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if check_exists and not exists(bucket, key):
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return None
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return client.generate_presigned_url(
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'get_object',
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Params={
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'Bucket': bucket,
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'Key': key
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},
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ExpiresIn=expires_in
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)
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def get_presigned_url_for_upload(bucket, expires_in, key):
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return client.generate_presigned_url(
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'put_object',
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Params={
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'Bucket': bucket,
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'Key': key
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},
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ExpiresIn=expires_in
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)
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def get_file(source_bucket, source_key):
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try:
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result = client.get_object(
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Bucket=source_bucket,
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Key=source_key
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)
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except ClientError as ex:
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if ex.response['Error']['Code'] == 'NoSuchKey':
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print(f'======> No object found - returning None for {source_bucket}/{source_key}')
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return None
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else:
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raise ex
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return result["Body"].read().decode()
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