The program below gives read permission recursively to all the files present in an S3 bucket.
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| class ChangeBucketPermissions(object): | |
| ##Initializer | |
| def __init__(self): | |
| self.aws_access_key = "XXXXXXXX" | |
| self.aws_secret_key = "XXXXXXXX" | |
| aws_region = 'us-east-1' | |
| self.s3_conn = boto.connect_s3(aws_access_key_id=self.aws_access_key, | |
| aws_secret_access_key=self.aws_secret_key, | |
| calling_format=boto.s3.connection.OrdinaryCallingFormat())) | |
| self.all_users = 'http://acs.amazonaws.com/groups/global/AllUsers' | |
| ##This method changes the permission of all files in a bucket | |
| def add_read_permissions(self, bucket_name): | |
| try: | |
| bucket = self.s3_conn.get_bucket(bucket_name) | |
| for key in bucket: | |
| readable = False | |
| acl = key.get_acl() | |
| for grant in acl.acl.grants: | |
| if grant.permission == 'READ': | |
| if grant.uri == self.all_users: | |
| readable = True | |
| if not readable: | |
| key.make_public() | |
| except Exception, e: | |
| print "Exception occurred while changing all permissions : " + str(e) |
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