root / pithos / im / target / util.py @ 552ea518
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# Copyright 2011 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 datetime |
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from urlparse import urlsplit, urlunsplit |
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from django.http import HttpResponse |
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from django.utils.http import urlencode |
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#from django.utils.cache import patch_vary_headers
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from pithos.im.models import User |
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def get_user(uniq, realname, affiliation): |
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"""Find or register a user into the internal database
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and issue a token for subsequent requests.
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"""
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try:
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user = User.objects.get(uniq=uniq) |
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except User.DoesNotExist:
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user = User() |
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user.uniq = uniq |
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user.realname = realname |
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user.affiliation = affiliation |
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user.renew_token() |
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user.save() |
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return user
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def prepare_response(user, next='', renew=False): |
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"""Return the unique username and the token
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as 'X-Auth-User' and 'X-Auth-Token' headers,
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or redirect to the URL provided in 'next'
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with the 'user' and 'token' as parameters.
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Reissue the token even if it has not yet
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expired, if the 'renew' parameter is present.
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"""
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if renew or user.auth_token_expires < datetime.datetime.now(): |
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user.renew_token() |
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user.save() |
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if next: |
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# TODO: Avoid redirect loops.
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parts = list(urlsplit(next)) |
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parts[3] = urlencode({'user': user.uniq, 'token': user.auth_token}) |
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next = urlunsplit(parts) |
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response = HttpResponse() |
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if not next: |
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response['X-Auth-User'] = user.uniq
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response['X-Auth-Token'] = user.auth_token
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response.content = user.uniq + '\n' + user.auth_token + '\n' |
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response.status_code = 200
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else:
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response['Location'] = next |
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response.status_code = 302
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return response
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