Mercurial > kallithea
annotate pylons_app/model/forms.py @ 195:7109d15c6813
cleared prints leftoovers, and changed current user fetching in login controller
| author | Marcin Kuzminski <marcin@python-works.com> |
|---|---|
| date | Sat, 22 May 2010 16:07:28 +0200 |
| parents | 556473ba0399 |
| children | 5af2cd31c99b |
| rev | line source |
|---|---|
| 0 | 1 """ this is forms validation classes |
| 2 http://formencode.org/module-formencode.validators.html | |
| 3 for list off all availible validators | |
| 4 | |
| 5 we can create our own validators | |
| 6 | |
| 7 The table below outlines the options which can be used in a schema in addition to the validators themselves | |
| 8 pre_validators [] These validators will be applied before the schema | |
| 9 chained_validators [] These validators will be applied after the schema | |
| 10 allow_extra_fields False If True, then it is not an error when keys that aren't associated with a validator are present | |
| 11 filter_extra_fields False If True, then keys that aren't associated with a validator are removed | |
| 12 if_key_missing NoDefault If this is given, then any keys that aren't available but are expected will be replaced with this value (and then validated). This does not override a present .if_missing attribute on validators. NoDefault is a special FormEncode class to mean that no default values has been specified and therefore missing keys shouldn't take a default value. | |
| 13 ignore_key_missing False If True, then missing keys will be missing in the result, if the validator doesn't have .if_missing on it already | |
| 14 | |
| 15 | |
| 16 <name> = formencode.validators.<name of validator> | |
| 17 <name> must equal form name | |
| 18 list=[1,2,3,4,5] | |
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19 for SELECT use formencode.All(OneOf(list), Int()) |
| 0 | 20 |
| 21 """ | |
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22 from formencode.validators import UnicodeString, OneOf, Int, Number, Regex |
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23 from pylons import session |
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24 from pylons.i18n.translation import _ |
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25 from pylons_app.lib.auth import get_crypt_password |
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26 from pylons_app.model import meta |
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27 from pylons_app.model.db import Users |
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28 from sqlalchemy.exc import OperationalError |
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29 from sqlalchemy.orm.exc import NoResultFound, MultipleResultsFound |
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30 from webhelpers.pylonslib.secure_form import authentication_token |
| 0 | 31 import formencode |
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32 import logging |
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33 log = logging.getLogger(__name__) |
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34 |
| 0 | 35 |
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36 #this is needed to translate the messages using _() in validators |
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37 class State_obj(object): |
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38 _ = staticmethod(_) |
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39 |
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40 #=============================================================================== |
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41 # VALIDATORS |
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42 #=============================================================================== |
| 0 | 43 class ValidAuthToken(formencode.validators.FancyValidator): |
| 44 messages = {'invalid_token':_('Token mismatch')} | |
| 45 | |
| 46 def validate_python(self, value, state): | |
| 47 | |
| 48 if value != authentication_token(): | |
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49 raise formencode.Invalid(self.message('invalid_token', state, |
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50 search_number=value), value, state) |
| 0 | 51 |
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52 class ValidAuth(formencode.validators.FancyValidator): |
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53 messages = { |
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54 'invalid_password':_('invalid password'), |
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55 'invalid_login':_('invalid user name'), |
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56 'disabled_account':_('Your acccount is disabled') |
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57 |
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58 } |
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59 #error mapping |
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60 e_dict = {'username':messages['invalid_login'], |
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61 'password':messages['invalid_password']} |
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62 |
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63 def validate_python(self, value, state): |
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64 sa = meta.Session |
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65 crypted_passwd = get_crypt_password(value['password']) |
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66 username = value['username'] |
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67 try: |
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68 user = sa.query(Users).filter(Users.username == username).one() |
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69 except (NoResultFound, MultipleResultsFound, OperationalError) as e: |
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70 log.error(e) |
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71 user = None |
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72 if user: |
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73 if user.active: |
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74 if user.username == username and user.password == crypted_passwd: |
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75 log.info('user %s authenticated correctly', username) |
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76 from pylons_app.lib.auth import AuthUser |
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77 auth_user = AuthUser() |
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78 auth_user.username = username |
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79 auth_user.is_authenticated = True |
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80 auth_user.is_admin = user.admin |
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81 session['hg_app_user'] = auth_user |
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82 session.save() |
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83 return value |
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84 else: |
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85 log.warning('user %s not authenticated', username) |
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86 raise formencode.Invalid(self.message('invalid_password', |
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87 state=State_obj), value, state, |
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88 error_dict=self.e_dict) |
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89 else: |
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90 log.warning('user %s is disabled', username) |
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91 raise formencode.Invalid(self.message('disabled_account', |
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92 state=State_obj), |
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93 value, state, error_dict=self.e_dict) |
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94 |
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95 |
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96 |
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97 #=============================================================================== |
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98 # FORMS |
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99 #=============================================================================== |
| 45 | 100 class LoginForm(formencode.Schema): |
| 101 allow_extra_fields = True | |
| 102 filter_extra_fields = True | |
| 103 username = UnicodeString( | |
| 104 strip=True, | |
| 105 min=3, | |
| 106 not_empty=True, | |
| 107 messages={ | |
| 108 'empty':_('Please enter a login'), | |
| 109 'tooShort':_('Enter a value %(min)i characters long or more')} | |
| 110 ) | |
| 0 | 111 |
| 45 | 112 password = UnicodeString( |
| 113 strip=True, | |
| 114 min=3, | |
| 115 not_empty=True, | |
| 116 messages={ | |
| 117 'empty':_('Please enter a password'), | |
| 118 'tooShort':_('Enter a value %(min)i characters long or more')} | |
| 119 ) | |
| 0 | 120 |
| 121 | |
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122 #chained validators have access to all data |
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123 chained_validators = [ValidAuth] |
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124 |
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125 |