2 # Functions for interacting with the persons table in the database
4 # Mark Huang <mlhuang@cs.princeton.edu>
5 # Copyright (C) 2006 The Trustees of Princeton University
7 # $Id: Persons.py,v 1.19 2006/11/09 19:43:55 mlhuang Exp $
10 from types import StringTypes
11 from datetime import datetime
14 from random import Random
18 from PLC.Faults import *
19 from PLC.Parameter import Parameter
20 from PLC.Filter import Filter
21 from PLC.Table import Row, Table
22 from PLC.Keys import Key, Keys
27 Representation of a row in the persons table. To use, optionally
28 instantiate with a dict of values. Update as you would a
29 dict. Commit to the database with sync().
32 table_name = 'persons'
33 primary_key = 'person_id'
34 join_tables = ['person_role', 'person_site', 'slice_person', 'person_session']
36 'person_id': Parameter(int, "Account identifier"),
37 'first_name': Parameter(str, "Given name", max = 128),
38 'last_name': Parameter(str, "Surname", max = 128),
39 'title': Parameter(str, "Title", max = 128, nullok = True),
40 'email': Parameter(str, "Primary e-mail address", max = 254),
41 'phone': Parameter(str, "Telephone number", max = 64, nullok = True),
42 'url': Parameter(str, "Home page", max = 254, nullok = True),
43 'bio': Parameter(str, "Biography", max = 254, nullok = True),
44 'enabled': Parameter(bool, "Has been enabled"),
45 'password': Parameter(str, "Account password in crypt() form", max = 254),
46 'last_updated': Parameter(int, "Date and time of last update", ro = True),
47 'date_created': Parameter(int, "Date and time when account was created", ro = True),
48 'role_ids': Parameter([int], "List of role identifiers"),
49 'roles': Parameter([str], "List of roles"),
50 'site_ids': Parameter([int], "List of site identifiers"),
51 'key_ids': Parameter([int], "List of key identifiers"),
52 'slice_ids': Parameter([int], "List of slice identifiers"),
53 'peer_id': Parameter(int, "Peer at which this slice was created", nullok = True),
58 foreign_fields = ['first_name', 'last_name', 'title', 'email', 'phone', 'url',
59 'bio', 'enabled', 'password', 'last_updated', 'date_created']
60 #foreign_xrefs = { 'Node' : { 'field' : 'node_ids' ,
61 # 'table': 'slice_node' } }
63 'Key' : { 'field' : 'key_ids', 'table' : 'person_key' }
64 # 'key_ids': Parameter([int], "List of key identifiers"),
65 # 'role_ids': Parameter([int], "List of role identifiers"),
66 # 'roles': Parameter([str], "List of roles"),
67 # 'site_ids': Parameter([int], "List of site identifiers"),
68 # 'slice_ids': Parameter([int], "List of slice identifiers"),
71 def validate_email(self, email):
73 Validate email address. Stolen from Mailman.
76 invalid_email = PLCInvalidArgument("Invalid e-mail address")
77 email_badchars = r'[][()<>|;^,\200-\377]'
79 # Pretty minimal, cheesy check. We could do better...
80 if not email or email.count(' ') > 0:
82 if re.search(email_badchars, email) or email[0] == '-':
86 at_sign = email.find('@')
89 user = email[:at_sign]
90 rest = email[at_sign+1:]
91 domain = rest.split('.')
93 # This means local, unqualified addresses, are no allowed
99 conflicts = Persons(self.api, [email])
100 for person in conflicts:
101 if 'person_id' not in self or self['person_id'] != person['person_id']:
102 raise PLCInvalidArgument, "E-mail address already in use"
106 def validate_password(self, password):
108 Encrypt password if necessary before committing to the
114 if len(password) > len(magic) and \
115 password[0:len(magic)] == magic:
118 # Generate a somewhat unique 8 character salt string
119 salt = str(time.time()) + str(Random().random())
120 salt = md5.md5(salt).hexdigest()[:8]
121 return crypt.crypt(password.encode(self.api.encoding), magic + salt + "$")
123 def can_update(self, person):
125 Returns true if we can update the specified person. We can
128 1. We are the person.
130 3. We are a PI and the person is a user or tech or at
134 assert isinstance(person, Person)
136 if self['person_id'] == person['person_id']:
139 if 'admin' in self['roles']:
142 if 'pi' in self['roles']:
143 if set(self['site_ids']).intersection(person['site_ids']):
144 # Can update people with higher role IDs
145 return min(self['role_ids']) < min(person['role_ids'])
149 def can_view(self, person):
151 Returns true if we can view the specified person. We can
154 1. We are the person.
156 3. We are a PI and the person is at one of our sites.
159 assert isinstance(person, Person)
161 if self.can_update(person):
164 if 'pi' in self['roles']:
165 if set(self['site_ids']).intersection(person['site_ids']):
166 # Can view people with equal or higher role IDs
167 return min(self['role_ids']) <= min(person['role_ids'])
171 def add_role(self, role_id, commit = True):
173 Add role to existing account.
176 assert 'person_id' in self
178 person_id = self['person_id']
180 if role_id not in self['role_ids']:
181 self.api.db.do("INSERT INTO person_role (person_id, role_id)" \
182 " VALUES(%(person_id)d, %(role_id)d)",
188 self['role_ids'].append(role_id)
190 def remove_role(self, role_id, commit = True):
192 Remove role from existing account.
195 assert 'person_id' in self
197 person_id = self['person_id']
199 if role_id in self['role_ids']:
200 self.api.db.do("DELETE FROM person_role" \
201 " WHERE person_id = %(person_id)d" \
202 " AND role_id = %(role_id)d",
208 self['role_ids'].remove(role_id)
210 def add_key(self, key, commit = True):
212 Add key to existing account.
215 assert 'person_id' in self
216 assert isinstance(key, Key)
217 assert 'key_id' in key
219 person_id = self['person_id']
220 key_id = key['key_id']
222 if key_id not in self['key_ids']:
223 self.api.db.do("INSERT INTO person_key (person_id, key_id)" \
224 " VALUES(%(person_id)d, %(key_id)d)",
230 self['key_ids'].append(key_id)
232 def remove_key(self, key, commit = True):
234 Remove key from existing account.
237 assert 'person_id' in self
238 assert isinstance(key, Key)
239 assert 'key_id' in key
241 person_id = self['person_id']
242 key_id = key['key_id']
244 if key_id in self['key_ids']:
245 self.api.db.do("DELETE FROM person_key" \
246 " WHERE person_id = %(person_id)d" \
247 " AND key_id = %(key_id)d",
253 self['key_ids'].remove(key_id)
255 def set_primary_site(self, site, commit = True):
257 Set the primary site for an existing account.
260 assert 'person_id' in self
261 assert isinstance(site, PLC.Sites.Site)
262 assert 'site_id' in site
264 person_id = self['person_id']
265 site_id = site['site_id']
266 self.api.db.do("UPDATE person_site SET is_primary = False" \
267 " WHERE person_id = %(person_id)d",
269 self.api.db.do("UPDATE person_site SET is_primary = True" \
270 " WHERE person_id = %(person_id)d" \
271 " AND site_id = %(site_id)d",
277 assert 'site_ids' in self
278 assert site_id in self['site_ids']
280 # Make sure that the primary site is first in the list
281 self['site_ids'].remove(site_id)
282 self['site_ids'].insert(0, site_id)
284 def delete(self, commit = True):
286 Delete existing account.
290 keys = Keys(self.api, self['key_ids'])
292 key.delete(commit = False)
294 # Clean up miscellaneous join tables
295 for table in self.join_tables:
296 self.api.db.do("DELETE FROM %s WHERE person_id = %d" % \
297 (table, self['person_id']))
300 self['deleted'] = True
303 class Persons(Table):
305 Representation of row(s) from the persons table in the
309 def __init__(self, api, person_filter = None, columns = None):
310 Table.__init__(self, api, Person, columns)
312 sql = "SELECT %s FROM view_persons WHERE deleted IS False" % \
313 ", ".join(self.columns)
315 if person_filter is not None:
316 if isinstance(person_filter, (list, tuple, set)):
317 # Separate the list into integers and strings
318 ints = filter(lambda x: isinstance(x, (int, long)), person_filter)
319 strs = filter(lambda x: isinstance(x, StringTypes), person_filter)
320 person_filter = Filter(Person.fields, {'person_id': ints, 'email': strs})
321 sql += " AND (%s)" % person_filter.sql(api, "OR")
322 elif isinstance(person_filter, dict):
323 person_filter = Filter(Person.fields, person_filter)
324 sql += " AND (%s)" % person_filter.sql(api, "AND")