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#! /usr/bin/env python3
import yaml
class Authz:
def __init__(self, org, perms):
self._org = org
self._perms = perms
def dump(self):
return "{}: {}".format(self._org, self._perms)
def read_p(self):
return "r" in self._perms
def write_p(self):
return "w" in self._perms
class User:
def __init__(self, username, authz):
self._username = username
self._authz = {}
for org, perms in authz.items():
self._authz[org] = Authz(org, perms)
def dump(self):
return [
"{}: {}".format(self._username, auth.dump())
for auth in self._authz.values()
]
def orgnames(self):
return [x for x in self._authz.keys()]
def read_perms(self):
acc = []
for k, v in self._authz.items():
if v.read_p():
acc.append(k)
return acc
def write_perms(self):
acc = []
for k, v in self._authz.items():
if v.write_p():
acc.append(k)
return acc
class UserDB:
def __init__(self, yamlfile):
self._users = {}
for u, d in yaml.safe_load(open(yamlfile)).items():
self._users[u] = User(u, d["authz"])
def dump(self):
return [u.dump() for u in self._users.values()]
def orgs_for_user(self, username):
return self._users.get(username).orgnames()
def read_perms(self, username):
user = self._users.get(username)
if not user:
return None
return user.read_perms()
def write_perms(self, username):
user = self._users.get(username)
if not user:
return None
return user.write_perms()
def self_test():
db = UserDB("userdb.yaml")
print(db.dump())
orgs = db.orgs_for_user("user3")
assert "sunet.se" in orgs
assert "su.se" in orgs
assert len(orgs) == 2
rp = db.read_perms("user3", "pw3")
assert len(rp) == 2
assert "sunet.se" in rp
assert "su.se" in rp
wp = db.write_perms("user3", "pw3")
assert len(wp) == 1
assert "sunet.se" in wp
if __name__ == "__main__":
self_test()
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