81 lines
3 KiB
Python
81 lines
3 KiB
Python
from functools import wraps
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from django.core.exceptions import PermissionDenied
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from django.http import HttpResponseNotModified, HttpResponseRedirect
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from django.shortcuts import render
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from django.utils.cache import patch_vary_headers
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from django.utils.translation import get_language
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from c3nav.editor.models import ChangeSet
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from c3nav.mapdata.models.access import AccessPermission
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from c3nav.mapdata.utils.user import can_access_editor
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def sidebar_view(func=None, select_related=None, api_hybrid=False):
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if func is None:
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def wrapped(inner_func):
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return sidebar_view(inner_func, select_related=select_related, api_hybrid=api_hybrid)
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return wrapped
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@wraps(func)
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def wrapped(request, *args, api=False, **kwargs):
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if api and api_hybrid:
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raise Exception('API call on a view without api_hybrid!')
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if not can_access_editor(request):
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raise PermissionDenied
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request.changeset = ChangeSet.get_for_request(request, select_related)
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if api:
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return call_api_hybrid_view_for_api(func, request, *args, **kwargs)
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ajax = request.is_ajax() or 'ajax' in request.GET
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if not ajax:
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request.META.pop('HTTP_IF_NONE_MATCH', None)
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if api_hybrid:
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response = call_api_hybrid_view_for_html(func, request, *args, **kwargs)
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else:
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response = func(request, *args, **kwargs)
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if ajax:
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if isinstance(response, HttpResponseRedirect):
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return render(request, 'editor/redirect.html', {'target': response['location']})
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if not isinstance(response, HttpResponseNotModified):
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response.write(render(request, 'editor/fragment_nav.html', {}).content)
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response['Cache-Control'] = 'no-cache'
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patch_vary_headers(response, ('X-Requested-With', ))
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return response
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if isinstance(response, HttpResponseRedirect):
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return response
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response = render(request, 'editor/map.html', {'content': response.content.decode()})
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response['Cache-Control'] = 'no-cache'
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patch_vary_headers(response, ('X-Requested-With', ))
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return response
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wrapped.api_hybrid = api_hybrid
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return wrapped
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def call_api_hybrid_view_for_api(func, request, *args, **kwargs):
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response = func(request, *args, **kwargs)
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return response
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def call_api_hybrid_view_for_html(func, request, *args, **kwargs):
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response = func(request, *args, **kwargs)
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return response
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def etag_func(request, *args, **kwargs):
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try:
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changeset = request.changeset
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except AttributeError:
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changeset = ChangeSet.get_for_request(request)
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request.changeset = changeset
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return (get_language() + ':' + changeset.raw_cache_key_by_changes + ':' +
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AccessPermission.cache_key_for_request(request, with_update=False) + ':' + str(request.user.pk or 0)
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+ ':' + str(int(request.user_permissions.can_access_base_mapdata))
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+ ':' + str(int(request.user.is_superuser)))
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