widgets.py 2.46 KB
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# Copyright 2011-2012 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
# without modification, are permitted provided that the following
# conditions are met:
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#
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#   1. Redistributions of source code must retain the above
#      copyright notice, this list of conditions and the following
#      disclaimer.
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#
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#   2. Redistributions in binary form must reproduce the above
#      copyright notice, this list of conditions and the following
#      disclaimer in the documentation and/or other materials
#      provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
# documentation are those of the authors and should not be
# interpreted as representing official policies, either expressed
# or implied, of GRNET S.A.

import recaptcha.client.captcha as captcha
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from django import forms
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from django.utils.safestring import mark_safe
from django.utils import simplejson as json
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from astakos.im.settings import RECAPTCHA_PUBLIC_KEY, RECAPTCHA_OPTIONS
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class RecaptchaWidget(forms.Widget):
    """ A Widget which "renders" the output of captcha.displayhtml """
    def render(self, *args, **kwargs):
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        conf = RECAPTCHA_OPTIONS
        recaptcha_conf = ('<script type="text/javascript">'
                         'var RecaptchaOptions = %s'
                         '</script>') % json.dumps(conf)
        return mark_safe(recaptcha_conf + \
                    captcha.displayhtml(RECAPTCHA_PUBLIC_KEY))
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class DummyWidget(forms.Widget):
    """
    A dummy Widget class for a placeholder input field which will
    be created by captcha.displayhtml

    """
    # make sure that labels are not displayed either
    is_hidden=True
    def render(self, *args, **kwargs):
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        return ''