local.py 3.38 KB
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# Copyright 2011-2012 GRNET S.A. All rights reserved.
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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:
#
#   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.
#
# 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.
#
# 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.

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from django.shortcuts import render_to_response
from django.template import RequestContext
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from django.contrib import messages
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from django.utils.translation import ugettext as _
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from django.views.decorators.csrf import csrf_exempt
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from django.views.decorators.http import require_http_methods
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from astakos.im.util import prepare_response, get_query
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from astakos.im.views import requires_anonymous
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from astakos.im.forms import LoginForm
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from astakos.im.settings import RATELIMIT_RETRIES_ALLOWED

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import astakos.im.messages as astakos_messages

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from ratelimit.decorators import ratelimit

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retries = RATELIMIT_RETRIES_ALLOWED - 1
rate = str(retries) + '/m'

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@require_http_methods(["GET", "POST"])
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@csrf_exempt
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@requires_anonymous
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@ratelimit(field='username', method='POST', rate=rate)
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def login(request, on_failure='im/login.html'):
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    """
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    on_failure: the template name to render on login failure
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    """
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    was_limited = getattr(request, 'limited', False)
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    form = LoginForm(data=request.POST,
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                     was_limited=was_limited,
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                     request=request)
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    next = get_query(request).get('next', '')
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    if not form.is_valid():
        return render_to_response(on_failure,
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                                  {'login_form': form,
                                   'next': next},
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                                  context_instance=RequestContext(request))
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    # get the user from the cash
    user = form.user_cache
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    message = None
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    if not user:
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        message = _(astakos_messages.ACCOUNT_AUTHENTICATION_FAILED)
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    elif not user.is_active:
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        message = _(astakos_messages.ACCOUNT_INACTIVE)
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    if message:
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        messages.error(request, message)
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        return render_to_response(on_failure,
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                                  {'form': form},
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                                  context_instance=RequestContext(request))
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    return prepare_response(request, user, next)