Last change
on this file since 842 was
589,
checked in by ecprice, 17 years ago
|
Set machine_access to be a private attribute of machine, so the acl is
deleted automatically when the machine is destroyed.
|
File size:
1.8 KB
|
Rev | Line | |
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[249] | 1 | #!/usr/bin/python |
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| 2 | from sipb_xen_database import * |
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| 3 | import sys |
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| 4 | import getafsgroups |
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| 5 | import subprocess |
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| 6 | |
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| 7 | def expandLocker(name): |
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| 8 | groups = getafsgroups.getLockerAcl(name) |
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| 9 | cell = getafsgroups.getCell(name) |
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| 10 | ans = set() |
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| 11 | for group in groups: |
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| 12 | if ':' in group: |
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| 13 | ans.update(getafsgroups.getAfsGroupMembers(group, cell)) |
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| 14 | else: |
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| 15 | ans.add(group) |
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| 16 | return ans |
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| 17 | |
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| 18 | def isUser(name): |
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| 19 | p = subprocess.Popen(['vos', 'examine', 'user.'+name], |
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| 20 | stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
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| 21 | if p.wait(): |
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| 22 | return False |
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| 23 | return True |
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| 24 | |
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| 25 | |
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| 26 | def expandName(name): |
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| 27 | if ':' not in name: |
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| 28 | if isUser(name): |
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| 29 | return [name] |
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[434] | 30 | return [] |
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[413] | 31 | try: |
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| 32 | return getafsgroups.getAfsGroupMembers(name, 'athena.mit.edu') |
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| 33 | except getafsgroups.AfsProcessError: |
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| 34 | return [] |
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[249] | 35 | |
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[410] | 36 | def accessList(m): |
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[263] | 37 | people = set() |
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| 38 | people.update(expandLocker(m.owner)) |
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| 39 | people.update(expandName(m.administrator)) |
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[410] | 40 | return people |
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| 41 | |
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| 42 | def refreshMachine(m): |
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| 43 | people = accessList(m) |
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[263] | 44 | old_people = set(a.user for a in m.acl) |
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| 45 | for removed in old_people - people: |
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| 46 | ma = [x for x in m.acl if x.user == removed][0] |
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| 47 | ctx.current.delete(ma) |
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| 48 | for p in people - old_people: |
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[589] | 49 | ma = MachineAccess(user=p) |
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| 50 | m.acl.append(ma) |
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[263] | 51 | ctx.current.save(ma) |
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| 52 | |
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[262] | 53 | def refreshCache(): |
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[257] | 54 | transaction = ctx.current.create_transaction() |
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| 55 | |
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| 56 | try: |
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| 57 | machines = Machine.select() |
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| 58 | for m in machines: |
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[263] | 59 | refreshMachine(m) |
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| 60 | ctx.current.flush() |
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[257] | 61 | |
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| 62 | # Atomically execute our changes |
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[249] | 63 | transaction.commit() |
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[257] | 64 | except: |
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| 65 | # Failed! Rollback all the changes. |
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| 66 | transaction.rollback() |
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| 67 | raise |
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[262] | 68 | |
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| 69 | if __name__ == '__main__': |
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| 70 | connect('postgres://sipb-xen@sipb-xen-dev/sipb_xen') |
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| 71 | refreshCache() |
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