/
versioned_special_keys.py
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/
versioned_special_keys.py
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import boto.exception
import boto.s3.connection
import boto.s3.acl
import itertools
import os
from nose.tools import eq_ as eq
from boto.connection import AWSAuthConnection
from boto.s3.key import Key
bucket_counter = itertools.count(1)
def get_new_bucket_name():
"""
Get a bucket name that probably does not exist.
We make every attempt to use a unique random prefix, so if a
bucket by this name happens to exist, it's ok if tests give
false negatives.
"""
name = '{prefix}{num}'.format(
prefix='bucket',
num=next(bucket_counter),
)
return name
def get_new_bucket(connection, name=None, headers=None):
"""
Get a bucket that exists and is empty.
Always recreates a bucket from scratch. This is useful to also
reset ACLs and such.
"""
if name is None:
name = get_new_bucket_name()
# the only way for this to fail with a pre-existing bucket is if
# someone raced us between setup nuke_prefixed_buckets and here;
# ignore that as astronomically unlikely
return bucket
def _create_keys(connection, bucket=None, keys=[]):
"""
Populate a (specified or new) bucket with objects with
specified names (and contents identical to their names).
"""
for s in keys:
key = bucket.new_key(s)
key.set_contents_from_string(s)
return bucket
def check_head_obj_content(key, content):
print 'check_head_obj_content ', key , 'content ', content
if content is not None:
s = key.get_contents_as_string()
eq(s, content)
else:
print 'check head', key
eq(key, None)
def check_obj_content(key, content):
if content is not None:
eq(key.get_contents_as_string(), content)
else:
eq(isinstance(key, boto.s3.deletemarker.DeleteMarker), True)
def check_obj_versions(bucket, objname, keys, contents):
# check to see if object is pointing at correct version
key = bucket.get_key(objname)
if len(contents) > 0:
print 'testing obj head', objname
print 'testing obj head', contents
check_head_obj_content(key, contents[-1])
i = len(contents)
for key in bucket.list_versions():
if key.name != objname:
continue
i -= 1
eq(keys[i].version_id or 'null', key.version_id)
print 'testing obj version-id=', key.version_id
check_obj_content(key, contents[i])
else:
eq(key, None)
def create_multiple_versions(bucket, objname, num_versions, k = None, c = None):
c = c or []
k = k or []
for i in xrange(num_versions):
c.append('content-{i}'.format(i=i))
key = bucket.new_key(objname)
key.set_contents_from_string(c[i])
if i == 0:
bucket.configure_versioning(True)
k_pos = len(k)
i = 0
for o in bucket.list_versions():
if o.name != objname:
continue
i += 1
if i > num_versions:
break
print o, o.version_id
k.insert(k_pos, o)
print 'created obj name=', objname, 'version-id=', o.version_id
eq(len(k), len(c))
for j in xrange(num_versions):
print j, k[j], k[j].version_id
check_obj_versions(bucket, objname, k, c)
return (k, c)
def check_versioning(bucket, status):
try:
eq(bucket.get_versioning_status()['Versioning'], status)
except KeyError:
eq(status, None)
def test_bucket_create_special_key_names():
s3_access_key=os.environ['S3_ACCESS_KEY_ID']
s3_secret_key=os.environ['S3_SECRET_ACCESS_KEY']
connection = boto.s3.connection.S3Connection(
aws_access_key_id= s3_access_key,
aws_secret_access_key=s3_secret_key,
is_secure=False,
port=8000,
host='localhost',
calling_format=boto.s3.connection.OrdinaryCallingFormat(),
)
bucket = connection.create_bucket('version1')
bucket.configure_versioning(True)
objname = 'goodobj'
i = 0
c = []
k = []
c.append('content-{i}'.format(i=i))
key = bucket.new_key(objname)
key.set_contents_from_string(c[i])
key = bucket.get_key(objname)
s = key.get_contents_as_string()
print key, ' contents ' , s
objname = '_testobj'
key = bucket.new_key(objname)
key.set_contents_from_string(c[i])
key = bucket.get_key(objname)
s = key.get_contents_as_string()
print key, ' contents ' , s
def test_bucket_versioned_specail_key_names():
num_versions = 10
objnames = ['_testobj', '_', ':', ' ']
for objname in objnames:
(k, c) = create_multiple_versions(bucket, objname, num_versions)
_do_remove_versions(bucket, objname, 0, 5, 0.5, k, c)
_do_remove_versions(bucket, objname, 0, 5, 0, k, c)
eq(len(k), 0)
eq(len(k), len(c))
if __name__ == "__main__":
test_bucket_create_special_key_names()