Show More
@@ -1,125 +1,127 b'' | |||
|
1 | 1 | """ this is forms validation classes |
|
2 | 2 | http://formencode.org/module-formencode.validators.html |
|
3 | 3 | for list off all availible validators |
|
4 | 4 | |
|
5 | 5 | we can create our own validators |
|
6 | 6 | |
|
7 | 7 | The table below outlines the options which can be used in a schema in addition to the validators themselves |
|
8 | 8 | pre_validators [] These validators will be applied before the schema |
|
9 | 9 | chained_validators [] These validators will be applied after the schema |
|
10 | 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 | 11 | filter_extra_fields False If True, then keys that aren't associated with a validator are removed |
|
12 | 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 | 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 | 14 | |
|
15 | 15 | |
|
16 | 16 | <name> = formencode.validators.<name of validator> |
|
17 | 17 | <name> must equal form name |
|
18 | 18 | list=[1,2,3,4,5] |
|
19 | 19 | for SELECT use formencode.All(OneOf(list), Int()) |
|
20 | 20 | |
|
21 | 21 | """ |
|
22 | 22 | from formencode.validators import UnicodeString, OneOf, Int, Number, Regex |
|
23 | 23 | from pylons import session |
|
24 | 24 | from pylons.i18n.translation import _ |
|
25 | 25 | from pylons_app.lib.auth import get_crypt_password |
|
26 | 26 | from pylons_app.model import meta |
|
27 | 27 | from pylons_app.model.db import Users |
|
28 | 28 | from sqlalchemy.exc import OperationalError |
|
29 | 29 | from sqlalchemy.orm.exc import NoResultFound, MultipleResultsFound |
|
30 | 30 | from webhelpers.pylonslib.secure_form import authentication_token |
|
31 | 31 | import formencode |
|
32 | 32 | import logging |
|
33 | 33 | log = logging.getLogger(__name__) |
|
34 | 34 | |
|
35 | 35 | |
|
36 | 36 | #this is needed to translate the messages using _() in validators |
|
37 | 37 | class State_obj(object): |
|
38 | 38 | _ = staticmethod(_) |
|
39 | 39 | |
|
40 | 40 | #=============================================================================== |
|
41 | 41 | # VALIDATORS |
|
42 | 42 | #=============================================================================== |
|
43 | 43 | class ValidAuthToken(formencode.validators.FancyValidator): |
|
44 | 44 | messages = {'invalid_token':_('Token mismatch')} |
|
45 | 45 | |
|
46 | 46 | def validate_python(self, value, state): |
|
47 | 47 | |
|
48 | 48 | if value != authentication_token(): |
|
49 | 49 | raise formencode.Invalid(self.message('invalid_token', state, |
|
50 | 50 | search_number=value), value, state) |
|
51 | 51 | |
|
52 | 52 | class ValidAuth(formencode.validators.FancyValidator): |
|
53 | 53 | messages = { |
|
54 | 54 | 'invalid_password':_('invalid password'), |
|
55 | 55 | 'invalid_login':_('invalid user name'), |
|
56 | 56 | 'disabled_account':_('Your acccount is disabled') |
|
57 | 57 | |
|
58 | 58 | } |
|
59 | 59 | #error mapping |
|
60 | 60 | e_dict = {'username':messages['invalid_login'], |
|
61 | 61 | 'password':messages['invalid_password']} |
|
62 | e_dict_disable = {'username':messages['disabled_account']} | |
|
62 | 63 | |
|
63 | 64 | def validate_python(self, value, state): |
|
64 | 65 | sa = meta.Session |
|
65 | 66 | crypted_passwd = get_crypt_password(value['password']) |
|
66 | 67 | username = value['username'] |
|
67 | 68 | try: |
|
68 | 69 | user = sa.query(Users).filter(Users.username == username).one() |
|
69 | 70 | except (NoResultFound, MultipleResultsFound, OperationalError) as e: |
|
70 | 71 | log.error(e) |
|
71 | 72 | user = None |
|
72 | 73 | if user: |
|
73 | 74 | if user.active: |
|
74 | 75 | if user.username == username and user.password == crypted_passwd: |
|
75 | 76 | from pylons_app.lib.auth import AuthUser |
|
76 | 77 | auth_user = AuthUser() |
|
77 | 78 | auth_user.username = username |
|
78 | 79 | auth_user.is_authenticated = True |
|
79 | 80 | auth_user.is_admin = user.admin |
|
80 | 81 | session['hg_app_user'] = auth_user |
|
81 | 82 | session.save() |
|
82 | 83 | log.info('user %s is now authenticated', username) |
|
83 | 84 | return value |
|
84 | 85 | else: |
|
85 | 86 | log.warning('user %s not authenticated', username) |
|
86 | 87 | raise formencode.Invalid(self.message('invalid_password', |
|
87 | 88 | state=State_obj), value, state, |
|
88 | 89 | error_dict=self.e_dict) |
|
89 | 90 | else: |
|
90 | 91 | log.warning('user %s is disabled', username) |
|
91 | 92 | raise formencode.Invalid(self.message('disabled_account', |
|
92 | 93 | state=State_obj), |
|
93 |
value, state, |
|
|
94 | value, state, | |
|
95 | error_dict=self.e_dict_disable) | |
|
94 | 96 | |
|
95 | 97 | |
|
96 | 98 | |
|
97 | 99 | #=============================================================================== |
|
98 | 100 | # FORMS |
|
99 | 101 | #=============================================================================== |
|
100 | 102 | class LoginForm(formencode.Schema): |
|
101 | 103 | allow_extra_fields = True |
|
102 | 104 | filter_extra_fields = True |
|
103 | 105 | username = UnicodeString( |
|
104 | 106 | strip=True, |
|
105 | 107 | min=3, |
|
106 | 108 | not_empty=True, |
|
107 | 109 | messages={ |
|
108 | 110 | 'empty':_('Please enter a login'), |
|
109 | 111 | 'tooShort':_('Enter a value %(min)i characters long or more')} |
|
110 | 112 | ) |
|
111 | 113 | |
|
112 | 114 | password = UnicodeString( |
|
113 | 115 | strip=True, |
|
114 | 116 | min=3, |
|
115 | 117 | not_empty=True, |
|
116 | 118 | messages={ |
|
117 | 119 | 'empty':_('Please enter a password'), |
|
118 | 120 | 'tooShort':_('Enter a value %(min)i characters long or more')} |
|
119 | 121 | ) |
|
120 | 122 | |
|
121 | 123 | |
|
122 | 124 | #chained validators have access to all data |
|
123 | 125 | chained_validators = [ValidAuth] |
|
124 | 126 | |
|
125 | 127 |
General Comments 0
You need to be logged in to leave comments.
Login now