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# -*- coding: iso-8859-1 -*-
"""
MoinMoin - recaptcha support
Based heavily on the textcha support in textcha.py
@copyright: 2011 by Steve McIntyre
@license: GNU GPL, see COPYING for details.
"""
from MoinMoin import log
from recaptcha.client import captcha
import sys
logging = log.getLogger(__name__)
from MoinMoin import wikiutil
class ReCaptcha(object):
""" Recaptcha support """
def __init__(self, request):
""" Initialize the Recaptcha setup.
@param request: the request object
"""
self.request = request
self.user_info = request.user.valid and request.user.name or request.remote_addr
cfg = request.cfg
try:
if cfg.recaptcha_public_key:
self.public_key = cfg.recaptcha_public_key
if cfg.recaptcha_private_key:
self.private_key = cfg.recaptcha_private_key
except:
self.public_key = None
self.private_key = None
def is_enabled(self):
""" check if we're configured, i.e. we have a key
"""
if (self.public_key and self.private_key):
return True
return False
def check_answer_from_form(self, form=None):
if self.is_enabled():
if form is None:
form = self.request.form
challenge = form.get('recaptcha_challenge_field')
response = form.get('recaptcha_response_field')
captcha_result = captcha.submit(challenge, response, self.private_key, self.request.remote_addr)
if captcha_result.is_valid:
logging.info(u"ReCaptcha: OK.")
return True
else:
logging.info(u"ReCaptcha: failed, error code %s." % captcha_result.error_code)
return False
else:
return True
def render(self, form=None):
""" Checks if ReCaptchas are enabled and returns HTML for one,
or an empty string if they are not enabled.
@return: unicode result html
"""
if self.is_enabled():
result = captcha.displayhtml(self.public_key, use_ssl = True)
else:
result = u''
return result
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