Merge branch 'master' into packaging

[pithos] / pithos / api / login.py

diff --git a/pithos/api/login.py b/pithos/api/login.py
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+++ b/pithos/api/login.py
@@ -0,0 +1,60 @@
+# Copyright 2011-2012 GRNET S.A. All rights reserved.
+# 
+# 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.
+
+import logging
+
+from django.http import HttpResponseNotFound, HttpResponseRedirect
+from django.utils.http import urlencode
+from django.conf import settings
+
+
+logger = logging.getLogger(__name__)
+
+
+def redirect_to_login_service(request):
+    users = settings.AUTHENTICATION_USERS
+    host = settings.AUTHENTICATION_HOST
+    if users is not None or host is None:
+       return HttpResponseNotFound()
+    
+    if request.is_secure():
+       proto = 'https://'
+    else:
+       proto = 'http://'
+       next = request.GET.get('next', '')
+       params = {'next': next}
+       renew = 'renew' in request.GET
+       if renew:
+               params['renew'] = True
+    uri = proto + host + '/login?' + urlencode(params)
+    return HttpResponseRedirect(uri)
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