Source

django-recaptcha-works / src / recaptcha_works / decorators.py

# -*- coding: utf-8 -*-
#
#  This file is part of django-recaptcha-works.
#
#  django-recaptcha-works provides a Django form field that integrates the
#  reCaptcha service.
#
#  Development Web Site:
#    - http://www.codetrax.org/projects/django-recaptcha-works
#  Public Source Code Repository:
#    - https://source.codetrax.org/hgroot/django-recaptcha-works
#
#  Copyright 2010 George Notaras <gnot [at] g-loaded.eu>
#
#  Based on the code snippet #1644 as published on:
#    - http://djangosnippets.org/snippets/1644/
#
#  Copyright 2009-2010 Chris Beaven, http://smileychris.com/
#
#  Licensed under the BSD License.
#
#  Redistribution and use in source and binary forms, with or without modification,
#  are permitted provided that the following conditions are met:
#
#      1. Redistributions of source code must retain the above copyright notice, 
#         this list of conditions and the following disclaimer.
#      
#      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.
#
#      3. Neither the name of Django nor the names of its contributors may be used
#         to endorse or promote products derived from this software without
#         specific prior written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER 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.
#

from django.utils.decorators import available_attrs
try:
    from functools import wraps
except ImportError:
    from django.utils.functional import wraps  # Python 2.4 fallback.

from recaptcha_works.utils import post_payload_add_recaptcha_remote_ip_field


def fix_recaptcha_remote_ip(view_func):
    """
    Modifies a view function so that its request object's POST payload
    contains a ``recaptcha_remote_ip_field`` field, which is required for
    proper reCaptcha functionality.
    
    """
    def wrapped_view(*args, **kwargs):
        args = list(args)
        args[0] = post_payload_add_recaptcha_remote_ip_field(args[0])
        resp = view_func(*args, **kwargs)
        return resp
    return wraps(view_func, assigned=available_attrs(view_func))(wrapped_view)
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