/usr/share/pyshared/txaws/s3/acls.py is in python-txaws 0.2.3-1ubuntu1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | from txaws.util import XML
PERMISSIONS = ("FULL_CONTROL",
"WRITE",
"WRITE_ACP",
"READ",
"READ_ACP")
class XMLMixin(object):
def to_xml(self):
return "".join(self._to_xml())
class AccessControlPolicy(XMLMixin):
def __init__(self, owner=None, access_control_list=()):
self.owner = owner
self.access_control_list = access_control_list
def _to_xml(self, buffer=None):
if buffer is None:
buffer = []
buffer.append("<AccessControlPolicy>\n")
if self.owner:
self.owner._to_xml(buffer=buffer, indent=1)
buffer.append(" <AccessControlList>\n")
for grant in self.access_control_list:
grant._to_xml(buffer=buffer, indent=2)
buffer.append(" </AccessControlList>\n"
"</AccessControlPolicy>")
return buffer
@classmethod
def from_xml(cls, xml_bytes):
root = XML(xml_bytes)
owner_node = root.find("Owner")
owner = Owner(owner_node.findtext("ID"),
owner_node.findtext("DisplayName"))
acl_node = root.find("AccessControlList")
acl = []
for grant_node in acl_node.findall("Grant"):
grantee_node = grant_node.find("Grantee")
grantee = Grantee(grantee_node.findtext("ID"),
grantee_node.findtext("DisplayName"))
permission = grant_node.findtext("Permission")
acl.append(Grant(grantee, permission))
return cls(owner, acl)
class Grant(XMLMixin):
def __init__(self, grantee, permission=None):
self.grantee = grantee
self.permission = permission
def _set_permission(self, perm):
if perm not in PERMISSIONS:
raise ValueError("Invalid permission '%s'. Must be one of %s" %
(perm, ",".join(PERMISSIONS)))
self._permission = perm
def _get_permission(self):
return self._permission
permission = property(_get_permission, _set_permission)
def _to_xml(self, buffer=None, indent=0):
if buffer is None:
buffer = []
ws = " " * (indent * 2)
buffer.append(ws + "<Grant>\n")
if self.grantee:
self.grantee._to_xml(buffer, indent + 1)
if self.permission:
buffer.append("%s <Permission>%s</Permission>\n" % (
ws, self.permission))
buffer.append(ws + "</Grant>\n")
return buffer
class Owner(XMLMixin):
def __init__(self, id, display_name):
self.id = id
self.display_name = display_name
def _to_xml(self, buffer=None, indent=0):
if buffer is None:
buffer = []
ws = " " * (indent * 2)
buffer.append("%s<Owner>\n"
"%s <ID>%s</ID>\n"
"%s <DisplayName>%s</DisplayName>\n"
"%s</Owner>\n" % (ws, ws, self.id, ws, self.display_name,
ws))
return buffer
class Grantee(XMLMixin):
def __init__(self, id="", display_name="", email_address="", uri=""):
if id or display_name:
msg = "Both 'id' and 'display_name' must be provided."
if not (id and display_name):
raise ValueError(msg)
self.id = id
self.display_name = display_name
self.email_address = email_address
self.uri = uri
def _to_xml(self, buffer=None, indent=0):
if buffer is None:
buffer = []
ws = " " * (indent * 2)
if self.id and self.display_name:
xsi_type = "CanonicalUser"
value = ("%s <ID>%s</ID>\n"
"%s <DisplayName>%s</DisplayName>\n" % (
ws, self.id, ws, self.display_name))
elif self.email_address:
xsi_type = "AmazonCustomerByEmail"
value = "%s <EmailAddress>%s</EmailAddress>\n" % (
ws, self.email_address)
elif self.uri:
xsi_type = "Group"
value = "%s <URI>%s</URI>\n" % (ws, self.uri)
buffer.append("%s<Grantee "
'xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"'
' xsi:type="%s">\n'
"%s%s</Grantee>\n" % (ws, xsi_type, value, ws))
return buffer
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