--- /dev/null
+#!/usr/bin/python
+import pprint
+import subprocess
+
+# import ldap
+# l = ldap.open("W92-130-LDAP-2.mit.edu")
+# # ldap.mit.edu is 1/2 broken right now so we're going to the working backend
+# l.simple_bind_s("", "")
+
+# def getLdapGroups(user):
+# """
+# getLdapGroups(user): returns a generator for the list of LDAP groups containing user
+# """
+# for user_data in l.search_s("ou=affiliates,dc=mit,dc=edu", ldap.SCOPE_ONELEVEL, "uid=" + user, []):
+# for group_data in l.search_s("ou=groups,dc=mit,dc=edu", ldap.SCOPE_ONELEVEL, "uniqueMember="+user_data[0], ['cn']):
+# yield group_data[1]['cn'][0]
+
+# def checkLdapGroups(user, group):
+# """
+# checkLdapGroups(user, group): returns True if and only if user is in LDAP group group
+# """
+# for result_data in l.search_s("ou=affiliates,dc=mit,dc=edu", ldap.SCOPE_ONELEVEL, "uid=" + user, []):
+# if l.search_s("ou=groups,dc=mit,dc=edu", ldap.SCOPE_ONELEVEL, "(&(cn=" + group + ")(uniqueMember="+result_data[0] + "))", []) != []:
+# return True
+# return False
+
+class MyException(Exception):
+ pass
+
+def getAfsGroupMembers(group, cell):
+ p = subprocess.Popen(["pts", "membership", group, '-c', cell],
+ stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ if p.wait():
+ return []
+ return [line.strip() for line in p.stdout.readlines()[1:]]
+
+def checkAfsGroup(user, group, cell):
+ """
+ checkAfsGroup(user, group) returns True if and only if user is in AFS group group in cell cell
+ """
+ return user in getAfsGroupMembers(group, cell)
+
+def getCell(locker):
+ p = subprocess.Popen(["fs", "whichcell", "/mit/" + locker],
+ stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ if p.wait():
+ raise MyException(p.stderr.read())
+ return p.stdout.read().split()[-1][1:-1]
+
+def getLockerAcl(locker):
+ p = subprocess.Popen(["fs", "listacl", "/mit/" + locker],
+ stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ if p.wait():
+ raise MyException(p.stderr.read())
+ lines = p.stdout.readlines()
+ values = []
+ for line in lines[1:]:
+ fields = line.split()
+ if fields[0] == 'Negative':
+ break
+ if 'rlidwka' in fields[1]:
+ values.append(fields[0])
+ return values
+
+def notLockerOwner(user, locker):
+ """
+ notLockerOwner(user, locker) returns false if and only if user administers locker.
+
+ If the user does not own the locker, returns the string reason for
+ the failure.
+ """
+ try:
+ cell = getCell(locker)
+ values = getLockerAcl(locker)
+ except MyException, e:
+ return str(e)
+
+ for entry in values:
+ if entry == user or (entry[0:6] == "system" and
+ checkAfsGroup(user, entry, cell)):
+ return False
+ return "You don't have admin bits on /mit/" + locker
+
+
+if __name__ == "__main__":
+# print list(getldapgroups("tabbott"))
+ print checkAfsGroup("tabbott", "system:debathena", 'athena.mit.edu')
+ print checkAfsGroup("tabbott", "system:debathena", 'sipb.mit.edu')
+ print checkAfsGroup("tabbott", "system:debathena-root", 'athena.mit.edu')
+ print checkAfsGroup("tabbott", "system:hmmt-request", 'athena.mit.edu')
+ print notLockerOwner("tabbott", "tabbott")
+ print notLockerOwner("tabbott", "debathena")
+ print notLockerOwner("tabbott", "sipb")
+ print notLockerOwner("tabbott", "lsc")
+ print notLockerOwner("tabbott", "scripts")
+ print notLockerOwner("ecprice", "hmmt")