82 lines
3.3 KiB
Python
Executable File
82 lines
3.3 KiB
Python
Executable File
from django.forms.fields import CharField, MultiValueField
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from django.forms import ValidationError
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from django.forms.widgets import TextInput, MultiWidget, HiddenInput
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from django.utils.safestring import mark_safe
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from django.utils.translation import ugettext_lazy as _
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from django.core.urlresolvers import reverse
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from captcha.models import CaptchaStore
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from captcha.conf import settings
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from captcha.helpers import *
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import datetime
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class CaptchaTextInput(MultiWidget):
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def __init__(self,attrs=None):
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widgets = (
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HiddenInput(attrs),
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TextInput(attrs),
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)
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for key in ('image','hidden_field','text_field'):
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if '%%(%s)s'%key not in settings.CAPTCHA_OUTPUT_FORMAT:
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raise KeyError('All of %s must be present in your CAPTCHA_OUTPUT_FORMAT setting. Could not find %s' %(
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', '.join(['%%(%s)s'%k for k in ('image','hidden_field','text_field')]),
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'%%(%s)s'%key
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))
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super(CaptchaTextInput,self).__init__(widgets,attrs)
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def decompress(self,value):
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if value:
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return value.split(',')
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return [None,None]
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def format_output(self, rendered_widgets):
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hidden_field, text_field = rendered_widgets
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return settings.CAPTCHA_OUTPUT_FORMAT %dict(image=self.image_and_audio, hidden_field=hidden_field, text_field=text_field)
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def render(self, name, value, attrs=None):
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challenge,response= settings.get_challenge()()
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store = CaptchaStore.objects.create(challenge=challenge,response=response)
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key = store.hashkey
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value = [key, u'']
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self.image_and_audio = '<img src="%s" alt="captcha" class="captcha" />' %reverse('captcha-image',kwargs=dict(key=key))
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if settings.CAPTCHA_FLITE_PATH:
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self.image_and_audio = '<a href="%s" title="%s">%s</a>' %( reverse('captcha-audio', kwargs=dict(key=key)), unicode(_('Play captcha as audio file')), self.image_and_audio)
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#fields = super(CaptchaTextInput, self).render(name, value, attrs=attrs)
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return super(CaptchaTextInput, self).render(name, value, attrs=attrs)
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class CaptchaField(MultiValueField):
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widget=CaptchaTextInput
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def __init__(self, *args,**kwargs):
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fields = (
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CharField(show_hidden_initial=True),
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CharField(),
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)
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if 'error_messages' not in kwargs or 'invalid' not in kwargs.get('error_messages'):
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if 'error_messages' not in kwargs:
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kwargs['error_messages'] = dict()
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kwargs['error_messages'].update(dict(invalid=_('Invalid CAPTCHA')))
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super(CaptchaField,self).__init__(fields=fields, *args, **kwargs)
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def compress(self,data_list):
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if data_list:
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return ','.join(data_list)
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return None
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def clean(self, value):
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super(CaptchaField, self).clean(value)
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response, value[1] = value[1].strip().lower(), ''
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CaptchaStore.remove_expired()
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try:
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store = CaptchaStore.objects.get(response=response, hashkey=value[0], expiration__gt=datetime.datetime.now())
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store.delete()
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except Exception:
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raise ValidationError(getattr(self,'error_messages',dict()).get('invalid', _('Invalid CAPTCHA')))
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return value
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