Last change
on this file since 796 was
263,
checked in by ecprice, 17 years ago
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Modularize cache_acls.py yet more
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File size:
1.7 KB
|
Line | |
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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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30 | name = 'system:'+name |
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31 | return getafsgroups.getAfsGroupMembers(name, 'athena.mit.edu') |
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32 | |
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33 | def refreshMachine(m): |
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34 | people = set() |
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35 | people.update(expandLocker(m.owner)) |
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36 | people.update(expandName(m.administrator)) |
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37 | old_people = set(a.user for a in m.acl) |
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38 | for removed in old_people - people: |
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39 | ma = [x for x in m.acl if x.user == removed][0] |
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40 | ctx.current.delete(ma) |
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41 | for p in people - old_people: |
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42 | ma = MachineAccess(machine_id=m.machine_id, user=p) |
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43 | ctx.current.save(ma) |
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44 | |
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45 | def refreshCache(): |
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46 | transaction = ctx.current.create_transaction() |
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47 | |
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48 | try: |
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49 | machines = Machine.select() |
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50 | for m in machines: |
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51 | refreshMachine(m) |
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52 | ctx.current.flush() |
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53 | |
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54 | # Atomically execute our changes |
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55 | transaction.commit() |
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56 | except: |
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57 | # Failed! Rollback all the changes. |
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58 | transaction.rollback() |
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59 | raise |
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60 | |
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61 | if __name__ == '__main__': |
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62 | connect('postgres://sipb-xen@sipb-xen-dev/sipb_xen') |
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63 | refreshCache() |
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