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annotate website/issues/detectors/userauditor.py @ 4593:db9673a8da9d

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author Thomas Arendsen Hein <thomas@intevation.de>
date Sat, 31 Mar 2012 22:05:48 +0200
parents c2d0d3e9099d
children 4f25640b5521
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1 import re
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2
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3 # regular expression thanks to: http://www.regular-expressions.info/email.html
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4 # this is the "99.99% solution for syntax only".
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5 email_regexp = (r"[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*", r"(localhost|(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9]))")
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6 email_rfc = re.compile('^' + email_regexp[0] + '@' + email_regexp[1] + '$', re.IGNORECASE)
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7 email_local = re.compile('^' + email_regexp[0] + '$', re.IGNORECASE)
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8
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9 def valid_address(address):
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10 ''' If we see an @-symbol in the address then check against the full
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11 RFC syntax. Otherwise it is a local-only address so only check
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12 the local part of the RFC syntax.
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13 '''
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14 if '@' in address:
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15 return email_rfc.match(address)
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16 else:
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17 return email_local.match(address)
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18
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19 def get_addresses(user):
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20 ''' iterate over all known addresses in a newvalues dict
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21 this takes of the address/alterate_addresses handling
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22 '''
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23 if user.has_key('address'):
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24 yield user['address']
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25 if user.get('alternate_addresses', None):
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26 for address in user['alternate_addresses'].split('\n'):
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27 yield address
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28
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29 def audit_user_fields(db, cl, nodeid, newvalues):
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30 ''' Make sure user properties are valid.
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31
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32 - email address is syntactically valid
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33 - email address is unique
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34 - roles specified exist
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35 - timezone is valid
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36 '''
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37
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38 for address in get_addresses(newvalues):
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39 if not valid_address(address):
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40 print newvalues
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41 raise ValueError, 'Email address syntax is invalid "%s"'%address
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42
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43 check_main = db.user.stringFind(address=address)
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44 # make sure none of the alts are owned by anyone other than us (x!=nodeid)
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45 check_alts = [x for x in db.user.filter(None, {'alternate_addresses' : address}) if x != nodeid]
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46 if check_main or check_alts:
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47 raise ValueError, 'Email address %s already in use' % address
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48
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49 for rolename in [r.lower().strip() for r in newvalues.get('roles', '').split(',')]:
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50 if rolename and not db.security.role.has_key(rolename):
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51 raise ValueError, 'Role "%s" does not exist'%rolename
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52
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53 tz = newvalues.get('timezone', None)
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54 if tz:
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55 # if they set a new timezone validate the timezone by attempting to
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56 # use it before we store it to the db.
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57 import roundup.date
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58 import datetime
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59 try:
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60 TZ = roundup.date.get_timezone(tz)
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61 dt = datetime.datetime.now()
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62 local = TZ.localize(dt).utctimetuple()
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63 except IOError:
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64 raise ValueError, 'Timezone "%s" does not exist' % tz
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65 except ValueError:
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66 raise ValueError, 'Timezone "%s" exceeds valid range [-23...23]' % tz
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67
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68 def init(db):
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69 # fire before changes are made
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70 db.user.audit('set', audit_user_fields)
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71 db.user.audit('create', audit_user_fields)
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