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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
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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#   1. Redistributions of source code must retain the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer.
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#
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#   2. Redistributions in binary form must reproduce the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer in the documentation and/or other materials
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#      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
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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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
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from django.utils import simplejson as json
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from synnefo_branding.utils import render_to_string
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from astakos.im.settings import RECAPTCHA_PUBLIC_KEY, RECAPTCHA_OPTIONS, \
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    RECAPTCHA_USE_SSL
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class RecaptchaWidget(forms.Widget):
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    """ A Widget which "renders" the output of captcha.displayhtml """
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    def render(self, *args, **kwargs):
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        conf = RECAPTCHA_OPTIONS
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        recaptcha_conf = ('<script type="text/javascript">'
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                          'var RecaptchaOptions = %s'
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                          '</script>') % json.dumps(conf)
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        custom_widget_html = render_to_string("im/captcha.html",
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                                              {'conf': 'Bob'})
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        return mark_safe(recaptcha_conf +
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                         custom_widget_html +
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                         captcha.displayhtml(RECAPTCHA_PUBLIC_KEY,
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                                             use_ssl=RECAPTCHA_USE_SSL))
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class DummyWidget(forms.Widget):
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    """
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    A dummy Widget class for a placeholder input field which will
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    be created by captcha.displayhtml
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    """
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    # make sure that labels are not displayed either
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    is_hidden = True
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    def render(self, *args, **kwargs):
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        return ''