root / snf-pithos-backend / pithos / backends / lib / sqlite / groups.py @ dc7159be
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1 | 2e662088 | Antony Chazapis | # Copyright 2011-2012 GRNET S.A. All rights reserved.
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2 | 2715ade4 | Sofia Papagiannaki | #
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3 | a9b3f29d | Antony Chazapis | # Redistribution and use in source and binary forms, with or
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4 | a9b3f29d | Antony Chazapis | # without modification, are permitted provided that the following
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5 | a9b3f29d | Antony Chazapis | # conditions are met:
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6 | 2715ade4 | Sofia Papagiannaki | #
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7 | a9b3f29d | Antony Chazapis | # 1. Redistributions of source code must retain the above
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8 | a9b3f29d | Antony Chazapis | # copyright notice, this list of conditions and the following
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9 | a9b3f29d | Antony Chazapis | # disclaimer.
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10 | 2715ade4 | Sofia Papagiannaki | #
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11 | a9b3f29d | Antony Chazapis | # 2. Redistributions in binary form must reproduce the above
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12 | a9b3f29d | Antony Chazapis | # copyright notice, this list of conditions and the following
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13 | a9b3f29d | Antony Chazapis | # disclaimer in the documentation and/or other materials
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14 | a9b3f29d | Antony Chazapis | # provided with the distribution.
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15 | 2715ade4 | Sofia Papagiannaki | #
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16 | a9b3f29d | Antony Chazapis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | a9b3f29d | Antony Chazapis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | a9b3f29d | Antony Chazapis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | a9b3f29d | Antony Chazapis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | a9b3f29d | Antony Chazapis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | a9b3f29d | Antony Chazapis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | a9b3f29d | Antony Chazapis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | a9b3f29d | Antony Chazapis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | a9b3f29d | Antony Chazapis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | a9b3f29d | Antony Chazapis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | a9b3f29d | Antony Chazapis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | a9b3f29d | Antony Chazapis | # POSSIBILITY OF SUCH DAMAGE.
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28 | 2715ade4 | Sofia Papagiannaki | #
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29 | a9b3f29d | Antony Chazapis | # The views and conclusions contained in the software and
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30 | a9b3f29d | Antony Chazapis | # documentation are those of the authors and should not be
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31 | a9b3f29d | Antony Chazapis | # interpreted as representing official policies, either expressed
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32 | a9b3f29d | Antony Chazapis | # or implied, of GRNET S.A.
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33 | a9b3f29d | Antony Chazapis | |
34 | 6f4bce7b | Antony Chazapis | from collections import defaultdict |
35 | 6f4bce7b | Antony Chazapis | |
36 | a9b3f29d | Antony Chazapis | from dbworker import DBWorker |
37 | a9b3f29d | Antony Chazapis | |
38 | a9b3f29d | Antony Chazapis | |
39 | a9b3f29d | Antony Chazapis | class Groups(DBWorker): |
40 | a9b3f29d | Antony Chazapis | """Groups are named collections of members, belonging to an owner."""
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41 | 2715ade4 | Sofia Papagiannaki | |
42 | a9b3f29d | Antony Chazapis | def __init__(self, **params): |
43 | a9b3f29d | Antony Chazapis | DBWorker.__init__(self, **params)
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44 | a9b3f29d | Antony Chazapis | execute = self.execute
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45 | 2715ade4 | Sofia Papagiannaki | |
46 | a9b3f29d | Antony Chazapis | execute(""" create table if not exists groups
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47 | a9b3f29d | Antony Chazapis | ( owner text,
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48 | a9b3f29d | Antony Chazapis | name text,
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49 | a9b3f29d | Antony Chazapis | member text,
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50 | a9b3f29d | Antony Chazapis | primary key (owner, name, member) ) """)
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51 | a9b3f29d | Antony Chazapis | execute(""" create index if not exists idx_groups_member
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52 | a9b3f29d | Antony Chazapis | on groups(member) """)
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53 | 2715ade4 | Sofia Papagiannaki | |
54 | a9b3f29d | Antony Chazapis | def group_names(self, owner): |
55 | a9b3f29d | Antony Chazapis | """List all group names belonging to owner."""
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56 | 2715ade4 | Sofia Papagiannaki | |
57 | a9b3f29d | Antony Chazapis | q = "select distinct name from groups where owner = ?"
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58 | a9b3f29d | Antony Chazapis | self.execute(q, (owner,))
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59 | a9b3f29d | Antony Chazapis | return [r[0] for r in self.fetchall()] |
60 | 2715ade4 | Sofia Papagiannaki | |
61 | 6f4bce7b | Antony Chazapis | def group_dict(self, owner): |
62 | 6f4bce7b | Antony Chazapis | """Return a dict mapping group names to member lists for owner."""
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63 | 2715ade4 | Sofia Papagiannaki | |
64 | a9b3f29d | Antony Chazapis | q = "select name, member from groups where owner = ?"
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65 | a9b3f29d | Antony Chazapis | self.execute(q, (owner,))
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66 | 6f4bce7b | Antony Chazapis | d = defaultdict(list)
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67 | 6f4bce7b | Antony Chazapis | for group, member in self.fetchall(): |
68 | 6f4bce7b | Antony Chazapis | d[group].append(member) |
69 | 6f4bce7b | Antony Chazapis | return d
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70 | 2715ade4 | Sofia Papagiannaki | |
71 | a9b3f29d | Antony Chazapis | def group_add(self, owner, group, member): |
72 | a9b3f29d | Antony Chazapis | """Add a member to a group."""
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73 | 2715ade4 | Sofia Papagiannaki | |
74 | 29148653 | Sofia Papagiannaki | q = ("insert or ignore into groups (owner, name, member) "
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75 | 29148653 | Sofia Papagiannaki | "values (?, ?, ?)")
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76 | a9b3f29d | Antony Chazapis | self.execute(q, (owner, group, member))
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77 | 2715ade4 | Sofia Papagiannaki | |
78 | a9b3f29d | Antony Chazapis | def group_addmany(self, owner, group, members): |
79 | a9b3f29d | Antony Chazapis | """Add members to a group."""
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80 | 2715ade4 | Sofia Papagiannaki | |
81 | 29148653 | Sofia Papagiannaki | q = ("insert or ignore into groups (owner, name, member) "
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82 | 29148653 | Sofia Papagiannaki | "values (?, ?, ?)")
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83 | a9b3f29d | Antony Chazapis | self.executemany(q, ((owner, group, member) for member in members)) |
84 | 2715ade4 | Sofia Papagiannaki | |
85 | a9b3f29d | Antony Chazapis | def group_remove(self, owner, group, member): |
86 | a9b3f29d | Antony Chazapis | """Remove a member from a group."""
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87 | 2715ade4 | Sofia Papagiannaki | |
88 | a9b3f29d | Antony Chazapis | q = "delete from groups where owner = ? and name = ? and member = ?"
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89 | a9b3f29d | Antony Chazapis | self.execute(q, (owner, group, member))
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90 | 2715ade4 | Sofia Papagiannaki | |
91 | a9b3f29d | Antony Chazapis | def group_delete(self, owner, group): |
92 | a9b3f29d | Antony Chazapis | """Delete a group."""
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93 | 2715ade4 | Sofia Papagiannaki | |
94 | a9b3f29d | Antony Chazapis | q = "delete from groups where owner = ? and name = ?"
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95 | a9b3f29d | Antony Chazapis | self.execute(q, (owner, group))
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96 | 2715ade4 | Sofia Papagiannaki | |
97 | a9b3f29d | Antony Chazapis | def group_destroy(self, owner): |
98 | a9b3f29d | Antony Chazapis | """Delete all groups belonging to owner."""
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99 | 2715ade4 | Sofia Papagiannaki | |
100 | a9b3f29d | Antony Chazapis | q = "delete from groups where owner = ?"
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101 | a9b3f29d | Antony Chazapis | self.execute(q, (owner,))
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102 | 2715ade4 | Sofia Papagiannaki | |
103 | a9b3f29d | Antony Chazapis | def group_members(self, owner, group): |
104 | a9b3f29d | Antony Chazapis | """Return the list of members of a group."""
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105 | 2715ade4 | Sofia Papagiannaki | |
106 | a9b3f29d | Antony Chazapis | q = "select member from groups where owner = ? and name = ?"
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107 | a9b3f29d | Antony Chazapis | self.execute(q, (owner, group))
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108 | a9b3f29d | Antony Chazapis | return [r[0] for r in self.fetchall()] |
109 | 2715ade4 | Sofia Papagiannaki | |
110 | a9b3f29d | Antony Chazapis | def group_check(self, owner, group, member): |
111 | a9b3f29d | Antony Chazapis | """Check if a member is in a group."""
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112 | 2715ade4 | Sofia Papagiannaki | |
113 | a9b3f29d | Antony Chazapis | q = "select 1 from groups where owner = ? and name = ? and member = ?"
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114 | a9b3f29d | Antony Chazapis | self.execute(q, (group, member))
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115 | a9b3f29d | Antony Chazapis | return bool(self.fetchone()) |
116 | 2715ade4 | Sofia Papagiannaki | |
117 | a9b3f29d | Antony Chazapis | def group_parents(self, member): |
118 | a9b3f29d | Antony Chazapis | """Return all (owner, group) tuples that contain member."""
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119 | 2715ade4 | Sofia Papagiannaki | |
120 | a9b3f29d | Antony Chazapis | q = "select owner, name from groups where member = ?"
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121 | a9b3f29d | Antony Chazapis | self.execute(q, (member,))
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122 | a9b3f29d | Antony Chazapis | return self.fetchall() |