class CredDefStoreFile(CredDefStore):
def __init__(self, baseDir: str, name: str):
self.store = DirectoryStore(baseDir, name)
@staticmethod
def key(name: str, version: str, dest: str):
key = "{}_{}_{}".format(name, version, dest)
return base64.urlsafe_b64encode(key.encode()).decode()
def addCredDef(self, name: str, version: str, dest: str, type: str, ip: str,
port: int, keys: Dict):
key = self.key(name, version, dest)
self.store.put(key, json.dumps({
TYPE: type,
IP: ip,
PORT: port,
KEYS: keys
}))
def getCredDef(self, name: str, version: str, dest: str = None):
key = self.key(name, version, dest)
value = self.store.get(key)
if value:
credDef = json.loads(value)
credDef.update({
NAME: name,
VERSION: version,
TARGET_NYM: dest
})
return credDef
class AttributeStoreFile(AttributeStore):
def __init__(self, baseDir: str, name: str):
self.store = DirectoryStore(baseDir, name)
@staticmethod
def attrKey(name: str, dest: Optional[str] = None):
dest = dest or ""
key = "{}_{}".format(name, dest)
return base64.urlsafe_b64encode(key.encode()).decode()
@staticmethod
def attrKeyParts(attrKey: str):
key = base64.urlsafe_b64decode(attrKey).decode()
return str.rsplit(key, "_", 1)
@staticmethod
def constructAttrData(fileData: str, name: str, dest: Optional[str]=None):
attr = json.loads(fileData)
attr[NAME] = name
if dest:
attr[TARGET_NYM] = dest
return attr
# TODO: May be need to provide hash type also, assuming sha256 for now
def addAttribute(self, name: str, val: Any, origin: str,
dest: Optional[str]=None, encKey: Optional[str]=None,
encType: Optional[str]=None, hashed: bool=False):
key = self.attrKey(name, dest)
if hashed:
dataKeyName = HASH
elif encKey:
dataKeyName = ENC
else:
dataKeyName = RAW
value = {dataKeyName: val, ORIGIN: origin}
if encKey:
value.update({SKEY: encKey})
if encType:
value.update({ENC_TYPE: encType})
self.store.put(key, value=json.dumps(value))
def getAttribute(self, name: str, dest: Optional[str] = None):
key = self.attrKey(name, dest)
value = self.store.get(key)
if value:
return self.constructAttrData(value, name, dest)
@property
def attributes(self):
return [self.constructAttrData(val, *self.attrKeyParts(key))
for key, val in self.store.iterator()]
