root / snf-astakos-app / astakos / im / fields.py @ 62d30634
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1 | bd2c6bc5 | Kostas Papadimitriou | # Copyright 2013 GRNET S.A. All rights reserved.
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2 | bd2c6bc5 | Kostas Papadimitriou | #
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3 | bd2c6bc5 | Kostas Papadimitriou | # Redistribution and use in source and binary forms, with or
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4 | bd2c6bc5 | Kostas Papadimitriou | # without modification, are permitted provided that the following
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5 | bd2c6bc5 | Kostas Papadimitriou | # conditions are met:
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6 | bd2c6bc5 | Kostas Papadimitriou | #
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7 | bd2c6bc5 | Kostas Papadimitriou | # 1. Redistributions of source code must retain the above
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8 | bd2c6bc5 | Kostas Papadimitriou | # copyright notice, this list of conditions and the following
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9 | bd2c6bc5 | Kostas Papadimitriou | # disclaimer.
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10 | bd2c6bc5 | Kostas Papadimitriou | #
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11 | bd2c6bc5 | Kostas Papadimitriou | # 2. Redistributions in binary form must reproduce the above
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12 | bd2c6bc5 | Kostas Papadimitriou | # copyright notice, this list of conditions and the following
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13 | bd2c6bc5 | Kostas Papadimitriou | # disclaimer in the documentation and/or other materials
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14 | bd2c6bc5 | Kostas Papadimitriou | # provided with the distribution.
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15 | bd2c6bc5 | Kostas Papadimitriou | #
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16 | bd2c6bc5 | Kostas Papadimitriou | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | bd2c6bc5 | Kostas Papadimitriou | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | bd2c6bc5 | Kostas Papadimitriou | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | bd2c6bc5 | Kostas Papadimitriou | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | bd2c6bc5 | Kostas Papadimitriou | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | bd2c6bc5 | Kostas Papadimitriou | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | bd2c6bc5 | Kostas Papadimitriou | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | bd2c6bc5 | Kostas Papadimitriou | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | bd2c6bc5 | Kostas Papadimitriou | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | bd2c6bc5 | Kostas Papadimitriou | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | bd2c6bc5 | Kostas Papadimitriou | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | bd2c6bc5 | Kostas Papadimitriou | # POSSIBILITY OF SUCH DAMAGE.
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28 | bd2c6bc5 | Kostas Papadimitriou | #
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29 | bd2c6bc5 | Kostas Papadimitriou | # The views and conclusions contained in the software and
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30 | bd2c6bc5 | Kostas Papadimitriou | # documentation are those of the authors and should not be
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31 | bd2c6bc5 | Kostas Papadimitriou | # interpreted as representing official policies, either expressed
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32 | bd2c6bc5 | Kostas Papadimitriou | # or implied, of GRNET S.A.
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33 | bd2c6bc5 | Kostas Papadimitriou | |
34 | bd2c6bc5 | Kostas Papadimitriou | import re |
35 | bd2c6bc5 | Kostas Papadimitriou | |
36 | bd2c6bc5 | Kostas Papadimitriou | from django.utils.translation import ugettext as _ |
37 | 6d9f2d63 | Kostas Papadimitriou | from django.utils.encoding import smart_str |
38 | 6d9f2d63 | Kostas Papadimitriou | from django.utils.encoding import force_unicode as force_text |
39 | bd2c6bc5 | Kostas Papadimitriou | from django import forms |
40 | bd2c6bc5 | Kostas Papadimitriou | |
41 | bd2c6bc5 | Kostas Papadimitriou | |
42 | bd2c6bc5 | Kostas Papadimitriou | class EmailValidator(object): |
43 | bd2c6bc5 | Kostas Papadimitriou | """
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44 | bd2c6bc5 | Kostas Papadimitriou | Email validator. Backported from django 1.6
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45 | bd2c6bc5 | Kostas Papadimitriou | """
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46 | bd2c6bc5 | Kostas Papadimitriou | message = _('Enter a valid email address.')
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47 | bd2c6bc5 | Kostas Papadimitriou | code = 'invalid'
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48 | bd2c6bc5 | Kostas Papadimitriou | user_regex = re.compile( |
49 | bd2c6bc5 | Kostas Papadimitriou | r"(^[-!#$%&'*+/=?^_`{}|~0-9A-Z]+(\.[-!#$%&'*+/=?^_`{}|~0-9A-Z]+)*$" # dot-atom |
50 | bd2c6bc5 | Kostas Papadimitriou | r'|^"([\001-\010\013\014\016-\037!#-\[\]-\177]|\\[\001-\011\013\014\016-\177])*"$)', # quoted-string |
51 | bd2c6bc5 | Kostas Papadimitriou | re.IGNORECASE) |
52 | bd2c6bc5 | Kostas Papadimitriou | domain_regex = re.compile( |
53 | bd2c6bc5 | Kostas Papadimitriou | r'(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}|[A-Z0-9-]{2,})$' # domain |
54 | bd2c6bc5 | Kostas Papadimitriou | # literal form, ipv4 address (SMTP 4.1.3)
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55 | bd2c6bc5 | Kostas Papadimitriou | r'|^\[(25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}\]$',
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56 | bd2c6bc5 | Kostas Papadimitriou | re.IGNORECASE) |
57 | bd2c6bc5 | Kostas Papadimitriou | domain_whitelist = ['localhost']
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58 | bd2c6bc5 | Kostas Papadimitriou | |
59 | bd2c6bc5 | Kostas Papadimitriou | def __init__(self, message=None, code=None, whitelist=None): |
60 | bd2c6bc5 | Kostas Papadimitriou | if message is not None: |
61 | bd2c6bc5 | Kostas Papadimitriou | self.message = message
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62 | bd2c6bc5 | Kostas Papadimitriou | if code is not None: |
63 | bd2c6bc5 | Kostas Papadimitriou | self.code = code
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64 | bd2c6bc5 | Kostas Papadimitriou | if whitelist is not None: |
65 | bd2c6bc5 | Kostas Papadimitriou | self.domain_whitelist = whitelist
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66 | bd2c6bc5 | Kostas Papadimitriou | |
67 | bd2c6bc5 | Kostas Papadimitriou | def __call__(self, value): |
68 | bd2c6bc5 | Kostas Papadimitriou | value = force_text(value) |
69 | bd2c6bc5 | Kostas Papadimitriou | |
70 | bd2c6bc5 | Kostas Papadimitriou | if not value or '@' not in value: |
71 | bd2c6bc5 | Kostas Papadimitriou | raise forms.ValidationError(self.message, code=self.code) |
72 | bd2c6bc5 | Kostas Papadimitriou | |
73 | bd2c6bc5 | Kostas Papadimitriou | user_part, domain_part = value.rsplit('@', 1) |
74 | bd2c6bc5 | Kostas Papadimitriou | |
75 | bd2c6bc5 | Kostas Papadimitriou | if not self.user_regex.match(user_part): |
76 | bd2c6bc5 | Kostas Papadimitriou | raise forms.ValidationError(self.message, code=self.code) |
77 | bd2c6bc5 | Kostas Papadimitriou | |
78 | bd2c6bc5 | Kostas Papadimitriou | if (not domain_part in self.domain_whitelist and |
79 | bd2c6bc5 | Kostas Papadimitriou | not self.domain_regex.match(domain_part)): |
80 | bd2c6bc5 | Kostas Papadimitriou | # Try for possible IDN domain-part
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81 | bd2c6bc5 | Kostas Papadimitriou | try:
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82 | bd2c6bc5 | Kostas Papadimitriou | domain_part = domain_part.encode('idna').decode('ascii') |
83 | bd2c6bc5 | Kostas Papadimitriou | if not self.domain_regex.match(domain_part): |
84 | bd2c6bc5 | Kostas Papadimitriou | raise forms.ValidationError(self.message, code=self.code) |
85 | bd2c6bc5 | Kostas Papadimitriou | else:
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86 | bd2c6bc5 | Kostas Papadimitriou | return
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87 | bd2c6bc5 | Kostas Papadimitriou | except UnicodeError: |
88 | bd2c6bc5 | Kostas Papadimitriou | pass
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89 | bd2c6bc5 | Kostas Papadimitriou | raise forms.ValidationError(self.message, code=self.code) |
90 | bd2c6bc5 | Kostas Papadimitriou | |
91 | bd2c6bc5 | Kostas Papadimitriou | |
92 | bd2c6bc5 | Kostas Papadimitriou | class EmailField(forms.EmailField): |
93 | bd2c6bc5 | Kostas Papadimitriou | default_validators = [EmailValidator()] |