3 from PLC.Faults import *
4 from PLC.Parameter import Parameter
5 from PLC.Debug import profile
6 from PLC.Table import Row, Table
7 from PLC.KeyTypes import KeyType, KeyTypes
11 Representation of a row in the keys table. To use, instantiate with a
12 dict of values. Update as you would a dict. Commit to the database
17 primary_key = 'key_id'
18 join_tables = ['person_key']
20 'key_id': Parameter(int, "Key identifier"),
21 'key_type': Parameter(str, "Key type"),
22 'key': Parameter(str, "Key value", max = 4096),
25 def validate_key_type(self, key_type):
26 if key_type not in KeyTypes(self.api):
27 raise PLCInvalidArgument, "Invalid key type"
30 def validate_key(self, key):
31 # Key must not be blacklisted
32 rows = self.api.db.selectall("SELECT 1 from keys" \
33 " WHERE key = %(key)s" \
34 " AND is_blacklisted IS True",
37 raise PLCInvalidArgument, "Key is blacklisted and cannot be used"
48 if self['key_type'] == 'ssh':
49 # Accept only SSH version 2 keys without options. From
52 # Each protocol version 2 public key consists of: options,
53 # keytype, base64 encoded key, comment. The options field
54 # is optional...The comment field is not used for anything
55 # (but may be convenient for the user to identify the
56 # key). For protocol version 2 the keytype is ``ssh-dss''
59 good_ssh_key = r'^.*(?:ssh-dss|ssh-rsa)[ ]+[A-Za-z0-9+/=]+(?: .*)?$'
60 if not re.match(good_ssh_key, key, re.IGNORECASE):
61 raise PLCInvalidArgument, "Invalid SSH version 2 public key"
63 def blacklist(self, commit = True):
65 Permanently blacklist key (and all other identical keys),
66 preventing it from ever being added again. Because this could
67 affect multiple keys associated with multiple accounts, it
71 assert 'key_id' in self
74 # Get all matching keys
75 rows = self.api.db.selectall("SELECT key_id FROM keys WHERE key = %(key)s",
77 key_ids = [row['key_id'] for row in rows]
79 assert self['key_id'] in key_ids
81 # Keep the keys in the table
82 self.api.db.do("UPDATE keys SET is_blacklisted = True" \
83 " WHERE key_id IN (%s)" % ", ".join(map(str, key_ids)))
85 # But disassociate them from all join tables
86 for table in ['person_key']:
87 self.api.db.do("DELETE FROM %s WHERE key_id IN (%s)" % \
88 (table, ", ".join(map(str, key_ids))))
95 Representation of row(s) from the keys table in the
99 def __init__(self, api, key_ids = None, is_blacklisted = False):
100 Table.__init__(self, api, Key)
102 sql = "SELECT %s FROM keys WHERE is_blacklisted IS False" % \
103 ", ".join(Key.fields)
106 sql += " AND key_id IN (%s)" % ", ".join(map(str, key_ids))