def record_thumbnail(request, id, name):
force_reprocess = request.GET.get('reprocess') == 'true'
filename = get_thumbnail_for_record(id,
request.user,
crop_to_square='square' in request.GET,
force_reprocess=force_reprocess)
if filename:
Activity.objects.create(
event='media-thumbnail',
request=request,
content_type=ContentType.objects.get_for_model(Record),
object_id=id,
data=dict(square=int('square' in request.GET)))
try:
response = HttpResponse(content=open(filename, 'rb').read(),
content_type='image/jpeg')
patch_cache_control(response, private=True, max_age=3600)
return response
except IOError:
logging.error("IOError: %s" % filename)
response = HttpResponseRedirect(
reverse('static', args=('images/thumbnail_unavailable.png', )))
patch_cache_control(response, no_cache=True)
return response
def retrieve(self, request, *args, **kwargs):
width = request.GET.get('width')
height = request.GET.get('height')
zoom = request.GET.get('zoom')
if zoom:
zoom = int(zoom)
rotation = request.GET.get('rotation')
if rotation:
rotation = int(rotation)
task = task_generate_document_page_image.apply_async(
kwargs=dict(document_page_id=self.get_object().pk,
width=width,
height=height,
zoom=zoom,
rotation=rotation))
cache_filename = task.get(timeout=DOCUMENT_IMAGE_TASK_TIMEOUT)
with storage_documentimagecache.open(cache_filename) as file_object:
response = HttpResponse(file_object.read(), content_type='image')
if '_hash' in request.GET:
patch_cache_control(
response,
max_age=settings_document_page_image_cache_time.value)
return response
def middleware(request: Request):
public_headers = {
'public': True,
'max-age': 60 * 5,
'stale-while-revalidate': 60 * 5,
'stale-if-error': (60 * 60) * 24,
}
private_headers = {
'private': True,
'max-age': 0,
'must-revalidate': True,
}
response = get_response(request)
if not response.get('Cache-Control'):
if request.META.get(settings.AUTHORIZATION_PREVIEW_HEADER, False):
cache_headers = private_headers
else:
cache_headers = public_headers
patch_cache_control(response, **cache_headers)
return response
def post(self, request):
response = HttpResponse()
name = cache.get('my_key')
response.write("<h2>{name}</h2>".format(name=name))
patch_cache_control(response, private=True) # 私有缓存控制 2
return response
def process_response(self, request, response): for pair in settings.CACHE_CONTROL: if re.search(pair[0], request.path): response['Cache-Control'] = "" patch_cache_control(response, **pair[1]) break return response
def render_to_response(self, context, **response_kwargs):
response = super(LogViewer,
self).render_to_response(context, **response_kwargs)
has_next_page = False
if self.request.is_ajax():
# easily parsed with Javascript
if self.next_page:
response['X-NextPage'] = self.next_page
has_next_page = True
if self.prev_page:
response['X-PrevPage'] = self.prev_page
else:
# Official SEO header
links = []
if self.next_page:
links.append('{0}; rel="next"'.format(self.next_page))
has_next_page = True
if self.prev_page:
links.append('{0}; rel="prev"'.format(self.prev_page))
response['Link'] = ','.join(links)
response['X-Timezone'] = self.timezone
if has_next_page and self.request.user.is_anonymous():
patch_cache_control(response,
public=True,
max_age=settings.CACHE_MIDDLEWARE_SECONDS)
else:
patch_cache_control(response, private=True)
return response
def index(request):
auth_form = forms.AuthForm(
request.GET or None,
prefix="auth",
)
if request.GET and auth_form.is_valid():
try:
authenticate(request, auth_form.cleaned_data["pnr"])
return redirect(guest_details)
except models.Group.DoesNotExist:
auth_form.add_error("pnr", "This confirmation code is invalid.")
data = {
"auth_form": auth_form,
"body_class": "home",
}
response = render(request, "wedding/index.html", data)
if request.GET:
patch_cache_control(response, private=True, max_age=60)
else:
patch_cache_control(response, public=True, max_age=3600)
return response
def generic_institute(request, *args, **kwargs):
level = 'institute'
institute = kwargs.get('institute', '')
category = kwargs.get('category', '')
subcategory = kwargs.get('subcategory', '')
is_authorized = auth.is_authorized(sciper=request.user.sciper,
section=level,
sub_section=institute,
category=category)
if not is_authorized:
raise PermissionDenied()
context = {
'tableau_base_url': settings.TABLEAU_BASE_URL,
'level': 'institute',
'institute': institute,
'category': category,
'subcategory': subcategory
}
if subcategory:
template_path = 'dashboard/institute/{}/{}.html'.format(
category, subcategory)
else:
template_path = 'dashboard/{}/{}.html'.format(level, category)
response = render(request, template_path, context=context)
patch_cache_control(response, private=True)
return response
def dispatch(request, page_id=None, node=None, url=None):
if page_id is not None:
page = get_object_or_404(Page, pk=page_id)
else:
page = None
if page and settings.DEBUG:
if_modified_since = request.META.get("HTTP_IF_MODIFIED_SINCE")
if if_modified_since:
if_modified_since = parse_http_date_safe(if_modified_since)
res_last_modified = timegm(page.last_modified.utctimetuple())
logger.debug('page="%d", if-last-modified="%s", '
'last-modified="%s"', page_id,
http_date(if_modified_since),
http_date(res_last_modified))
base = 'touchtechnology/content'
args = url.split('/')
templates = list(template_path(
base, '%s.html' % (page and 'page' or 'folder'), *args))
if page and page.template:
templates.insert(0, page.template)
context = {
'page': page,
'node': node,
}
response = TemplateResponse(request, templates, context)
# For authenticated visitors we may alter the rendered content, so mark
# the content as private to stop interim caches from keeping a copy.
if request.user.is_authenticated:
patch_cache_control(response, private=True)
return response
def render_to_response(self, context, **response_kwargs):
response = super(LogViewer, self).render_to_response(
context, **response_kwargs)
has_next_page = False
if self.format == 'html':
# Official SEO header
links = []
if self.next_page:
links.append('{0}; rel="next"'.format(self.next_page))
has_next_page = True
if self.prev_page:
links.append('{0}; rel="prev"'.format(self.prev_page))
response['Link'] = ','.join(links)
else:
# No HTML, pass page info in easily parseable headers
if self.next_page:
response['X-NextPage'] = self.next_page
has_next_page = True
if self.prev_page:
response['X-PrevPage'] = self.prev_page
if has_next_page and self.request.user.is_anonymous():
patch_cache_control(
response, public=True,
max_age=settings.CACHE_MIDDLEWARE_SECONDS)
else:
patch_cache_control(response, private=True)
return response
def process_request(self, request):
"""Process request and redirect user if they're unauthenticated."""
if not request.user.is_authenticated():
path = request.path_info.lstrip('/')
if path == '':
return
if not any(m.match(path) for m in EXEMPT_URLS):
if request.is_ajax():
# For AJAX requests, return a 400 (which will trigger
# jquery's ajax error functionality) and include the error
# in a way consistent with the rest of Connect. This is to
# prevent AJAX requests from ever being sent through the
# login flow (which can cause problems.)
response = HttpResponseBadRequest(
json.dumps({
'success': False,
'errors': [
'You Must Be Logged In',
]
}),
content_type='application/json'
)
else:
redirect_to = '%s?next=%s' % (settings.LOGIN_URL,
request.path_info)
response = HttpResponseRedirect(redirect_to)
# Break the client-side cache on all possible browsers on all
# protocols.
patch_cache_control(
response, no_cache=True, no_store=True,
must_revalidate=True, max_age=0, private=True,
proxy_revalidate=True, s_maxage=0)
return response
def __init__(self, request, template, *args, **kwargs):
super(DrinkStaticTemplateResponse, self).__init__(request, template, *args, **kwargs)
patch_cache_control(
self, public=True,
max_age=settings.PUBLIC_CACHE_TIME,
)
def wrapper(*args, **kwargs):
response = decorated_function(*args, **kwargs)
patch_cache_control(response,
no_cache=True,
no_store=True,
must_revalidate=True,
max_age=0)
return response
def dispatch(self, request, *args, **kwargs):
response = super(CacheControlMixin,
self).dispatch(request, *args, **kwargs)
cache_control = self.cache_control.copy()
if 'private' not in cache_control and 'public' not in cache_control:
key = 'public' if request.user.is_anonymous() else 'private'
cache_control[key] = True
patch_cache_control(response, **cache_control)
return response
def homepage(request):
def tagorder(c: Chal):
s = c.tags_str()
return 0 if 'welcoming' in s else \
1 if 'good_first_challenge' in s else \
2 if 'intro' in s else 3
own_private_chals = Chal.objects.filter(owner_user__id=request.user.id,
public_checkout=None)
grp_private_chals = Chal.objects.filter(owner_group__in=request.user.groups.all(), public_checkout=None)\
.exclude(owner_user__id=request.user.id)
if request.user.is_authenticated:
# Also see the profile page
us = get_settings(request.user)
public_chals = list(Chal.objects.filter(public_checkout__isnull=False)\
.exclude(solved_by=us).order_by('points', '-format', 'name'))
# First push zero-points to the end
public_chals.sort(key=lambda c: 1 if (c.points == 0) else 0)
# Reorder: welcoming, good_first_challenge, intro
public_chals.sort(key=tagorder)
solved_chals = Chal.objects.filter(public_checkout__isnull=False,
solved_by=us).order_by(
'-points', '-format', 'name')
own_achievements = us.achievements.all()
other_achievements = Achievement.objects.exclude(
pk__in=own_achievements)
own_vms = VM.objects.filter(creation_user=request.user,
deleted=False).order_by('-id')
else:
public_chals = list(Chal.objects.filter(public_checkout__isnull=False)\
.order_by('points', '-format', 'name'))
# First push zero-points to the end
public_chals.sort(key=lambda c: 1 if (c.points == 0) else 0)
# Reorder: welcoming, good_first_challenge, intro
public_chals.sort(key=tagorder)
solved_chals = []
own_achievements = []
other_achievements = Achievement.objects.all()
own_vms = []
response = render(
request, 'ctfoood/home.html', {
"own_private_chals": own_private_chals,
"grp_private_chals": grp_private_chals,
"public_chals": public_chals,
"solved_chals": solved_chals,
"own_achievements": own_achievements,
"other_achievements": other_achievements,
"own_vms": own_vms,
})
if request.user.is_authenticated:
patch_cache_control(response, max_age=0, must_revalidate=True)
else:
patch_cache_control(response, max_age=1800)
return response
def fetch_query_results(request, name):
if request.method == "OPTIONS":
response = HttpResponse(status=204)
else:
if name == "single_card_details" and \
"HTTP_X_TWITCH_EXTENSION_VERSION" not in request.META:
# 2017-01-18 emergency fix
return HttpResponse(status=204)
parameterized_query = _get_query_and_params(request, name)
if issubclass(parameterized_query.__class__, HttpResponse):
return parameterized_query
last_modified = parameterized_query.result_as_of
if last_modified:
last_modified = timegm(last_modified.utctimetuple())
response = None
is_cache_hit = parameterized_query.result_available
if is_cache_hit:
_trigger_if_stale(parameterized_query)
# Try to return a minimal response
response = get_conditional_response(request,
last_modified=last_modified)
if not response:
if request.method == "HEAD":
response = HttpResponse(204)
else:
# Resort to a full response
response = _fetch_query_results(parameterized_query,
user=request.user)
# Add Last-Modified header
if response.status_code in (200, 204, 304):
response["Last-Modified"] = http_date(last_modified)
# Add Cache-Control headers
if parameterized_query.is_personalized or parameterized_query.has_premium_values:
patch_cache_control(response, no_cache=True, private=True)
else:
patch_cache_control(response, no_cache=True, public=True)
# Add CORS header if permitted - can be replaced by middleware in future
origin = urlparse(request.META.get("HTTP_ORIGIN", ""))
if origin.netloc in settings.ANALYTICS_CORS_ORIGIN_WHITELIST:
response["Access-Control-Allow-Origin"] = origin.geturl()
response["Access-Control-Allow-Methods"] = "GET, HEAD, OPTIONS"
response["Access-Control-Allow-Headers"] = ", ".join(
settings.ANALYTICS_CORS_HEADER_WHITELIST)
# Always patch vary header so browsers do not cache CORS
patch_vary_headers(response, ["Origin"])
return response
def r(request, *args, **kwargs):
if not request.user.is_authenticated():
redirect_url = reverse('logged_out_json')
response = HttpResponseRedirect(redirect_url)
else:
response = f(request, *args, **kwargs)
patch_cache_control(response, private=True, no_cache=True, no_store=True, must_revalidate=True)
add_never_cache_headers(response)
return(response)
def ping(request):
response = HttpResponse('pong', status=200)
patch_cache_control(
response, **{
'must-revalidate': True,
'no-cache': True,
'no-store': True,
'private': True,
})
return response
def wrap(request, *args, **kwargs):
response = None
if hub_mode and '/RaceDB/Hub' not in request.path:
# If hub mode, default to hub search page.
response = HttpResponseRedirect(
'/RaceDB/Hub/SearchCompetitions/')
elif request.user.username == 'serve' and not selfserve_ok:
# If self-serve, reject page that is not self-serve.
response = HttpResponseRedirect('/RaceDB/SelfServe')
elif not hub_mode and not request.user.is_superuser:
# Unless superuser, cannot access a competition in the past.
competition = None
if 'competitionId' in kwargs:
competition = Competition.objects.filter(
id=kwargs['competitionId']).first()
elif 'participantId' in kwargs:
participant = Participant.objects.filter(
id=kwargs['participantId']).defer(
'signature').select_related('competition').first()
if participant:
competition = participant.competition
elif 'eventId' in kwargs and 'eventType' in kwargs:
try:
eventType = int(kwargs['eventType'])
except:
eventType = -1
if eventType == 0:
event = EventMassStart.objects.filter(
id=kwargs['eventId']).select_related(
'competition').first()
elif eventType == 1:
event = EventTT.objects.filter(
id=kwargs['eventId']).select_related(
'competition').first()
else:
event = None
if event:
competition = event.competition
if competition and competition.is_finished():
response = HttpResponseRedirect('/RaceDB/PastCompetition')
response = response or decorated_func(request, *args, **kwargs)
if no_cache:
patch_cache_control(
response,
no_cache=True,
no_store=True,
must_revalidate=True,
proxy_revalidate=True,
max_age=0,
)
response['Pragma'] = 'no-cache'
return response
def index(request):
numbers = [randint(1,9) for x in range(0,10)]
response = render_to_response('random_app/index.html',
{'numbers': numbers,
},
context_instance=RequestContext(request))
#response['Cache-Control'] = 'no-cache'
patch_cache_control(response, no_cache=True, no_store=True, must_revalidate=True, max_age=60)
return response
def index(request):
context = {
'image_relative_path':
'dashboard/img/myKompas.png',
'title':
'School of Engineering',
'details':
"You will find your statistics within the School of Engineering.",
}
response = render(request, 'generic_section_page.html', context=context)
patch_cache_control(response, private=True)
return response
def retrieve(self, request, *args, **kwargs):
task = task_generate_workflow_image.apply_async(
kwargs=dict(document_state_id=self.get_object().pk, ))
cache_filename = task.get(timeout=WORKFLOW_IMAGE_TASK_TIMEOUT)
cache_file = self.get_object().cache_partition.get_file(
filename=cache_filename)
with cache_file.open() as file_object:
response = HttpResponse(file_object.read(), content_type='image')
if '_hash' in request.GET:
patch_cache_control(
response, max_age=settings_workflow_image_cache_time.value)
return response
def index(request):
numbers = [randint(1, 9) for x in range(0, 10)]
response = render_to_response('random_app/index.html', {
'numbers': numbers,
},
context_instance=RequestContext(request))
#response['Cache-Control'] = 'no-cache'
patch_cache_control(response,
no_cache=True,
no_store=True,
must_revalidate=True,
max_age=60)
return response
def get(self, request, **kwargs):
serializer = self.serializer_class(data=request.GET)
serializer.is_valid(raise_exception=True)
supplied_params = request.GET.copy()
supplied_params.update(serializer.validated_data)
del supplied_params["query"]
if "Region" in supplied_params:
supplied_params["Region"] = Region.from_int(
supplied_params["Region"]).name
try:
parameterized_query = serializer.query.build_full_params(
supplied_params)
except InvalidOrMissingQueryParameterError as e:
raise PermissionDenied(str(e)) from e
if parameterized_query.has_premium_values:
if not self._check_premium(request):
raise PermissionDenied("You do not have access to this query.")
last_modified = parameterized_query.result_as_of
if last_modified:
last_modified = timegm(last_modified.utctimetuple())
response = None
is_cache_hit = parameterized_query.result_available
if is_cache_hit:
_trigger_if_stale(parameterized_query)
# Try to return a minimal response
response = get_conditional_response(request,
last_modified=last_modified)
if not response:
# Resort to a full response
response = _fetch_query_results(parameterized_query,
user=request.user)
response["last-modified"] = http_date(last_modified)
# Always send Cache-Control headers
if parameterized_query.is_personalized or parameterized_query.has_premium_values:
patch_cache_control(response, no_cache=True, private=True)
else:
patch_cache_control(response, no_cache=True, public=True)
return response
def __call__(self, request):
headers = {
'public': True,
'max-age': 60 * 5, # 5 minutes, 300 seconds
'stale-while-revalidate': 60 * 5, # 5 minutes, 300 seconds
'stale-if-error': (60 * 60) * 24, # 1 day, 86400 seconds
}
response = self.get_response(request)
# skip patching cache headers if already explicitly set
if 'Cache-Control' not in response:
patch_cache_control(response, **headers)
patch_vary_headers(response, ['Accept'])
return response
def register(request):
if request.method=="GET":
form = RolnikForm()
if request.method == 'POST':
form=RolnikForm(request.POST)
if form.is_valid():
email=form.cleaned_data['email']
password=form.cleaned_data['password1']
rolnik=form.save(commit=False)
UserModel().objects.create_user(email, email, password)
rolnik.user=authenticate(username=email, password=password)
rolnik.save()
login(request, rolnik.user)
return redirect('rolnicy-mojprofil')
response = render_to_response('registration/registration_form.html', context_instance=RequestContext(request,{'form':form}))
patch_cache_control(response, no_cache=True, no_store=True, must_revalidate=True)
return response
def process_request(self, request):
for domain in Domain.objects.exclude(parking_page=None):
if domain.match_request(request) and domain.parking_page.match_request(request):
response = domain.parking_page.to_response(request, domain)
patch_cache_control(response, no_cache=True, max_age=0)
# Expires in the past to force no caching with HTTP/1.0 caches which do
# not recognize cache-control.
response['Expires'] = http_date(time.time() - 86400)
# If Varnish integration is active, we permit Varnish to cache our response
# despite the expires and cache-control headers.
if settings.VARNISH_INTEGRATION:
from dnsman.varnish_integration.cache import varnish_can_cache
varnish_can_cache(response)
return response
def process_request(self, request):
for redirection in Redirection.objects.filter(enabled=True).order_by('-weight'):
if redirection.match_request(request):
response = redirection.to_response(request)
patch_cache_control(response, no_cache=True, max_age=0)
# Expires in the past to force no caching with HTTP/1.0 caches which do
# not recognize cache-control.
response['Expires'] = http_date(time.time() - 86400)
# If Varnish integration is active, we permit Varnish to cache our response
# despite the expires and cache-control headers.
if settings.VARNISH_INTEGRATION:
from dnsman.varnish_integration.cache import varnish_can_cache
varnish_can_cache(response)
return response
def retrieve(self, request, *args, **kwargs):
width = request.GET.get('width')
height = request.GET.get('height')
zoom = request.GET.get('zoom')
if zoom:
zoom = int(zoom)
rotation = request.GET.get('rotation')
if rotation:
rotation = int(rotation)
maximum_layer_order = request.GET.get('maximum_layer_order')
if maximum_layer_order:
maximum_layer_order = int(maximum_layer_order)
task = task_generate_document_page_image.apply_async(
kwargs=dict(document_page_id=self.get_object().pk,
width=width,
height=height,
zoom=zoom,
rotation=rotation,
maximum_layer_order=maximum_layer_order,
user_id=request.user.pk))
kwargs = {'timeout': DOCUMENT_IMAGE_TASK_TIMEOUT}
if settings.DEBUG:
# In debug more, task are run synchronously, causing this method
# to be called inside another task. Disable the check of nested
# tasks when using debug mode.
kwargs['disable_sync_subtasks'] = False
cache_filename = task.get(**kwargs)
cache_file = self.get_object().cache_partition.get_file(
filename=cache_filename)
with cache_file.open() as file_object:
response = HttpResponse(file_object.read(), content_type='image')
if '_hash' in request.GET:
patch_cache_control(
response=response,
max_age=settings_document_page_image_cache_time.value)
return response
def process_request(self, request):
for domain in Domain.objects.exclude(parking_page=None):
if domain.match_request(
request) and domain.parking_page.match_request(request):
response = domain.parking_page.to_response(request, domain)
patch_cache_control(response, no_cache=True, max_age=0)
# Expires in the past to force no caching with HTTP/1.0 caches which do
# not recognize cache-control.
response['Expires'] = http_date(time.time() - 86400)
# If Varnish integration is active, we permit Varnish to cache our response
# despite the expires and cache-control headers.
if settings.VARNISH_INTEGRATION:
from dnsman.varnish_integration.cache import varnish_can_cache
varnish_can_cache(response)
return response
def render(self, request, templates, context, tz=None, **kwargs):
logger.debug(
"{app}.render: {request.path}".format(
app=self.__class__.__name__, request=request
)
)
context.update({"application": self})
kwargs.setdefault("context", context)
response = TemplateResponse(request, templates, **kwargs)
response.current_app = self.current_app
if tz is not None:
with timezone.override(tz):
response.render()
if not request.user.is_anonymous:
patch_cache_control(response, private=True)
return response
def retrieve(self, request, *args, **kwargs):
task = task_generate_workflow_image.apply_async(
kwargs=dict(document_state_id=self.get_object().pk, ))
kwargs = {'timeout': WORKFLOW_IMAGE_TASK_TIMEOUT}
if settings.DEBUG:
# In debug more, task are run synchronously, causing this method
# to be called inside another task. Disable the check of nested
# tasks when using debug mode.
kwargs['disable_sync_subtasks'] = False
cache_filename = task.get(**kwargs)
cache_file = self.get_object().cache_partition.get_file(
filename=cache_filename)
with cache_file.open() as file_object:
response = HttpResponse(file_object.read(), content_type='image')
if '_hash' in request.GET:
patch_cache_control(
response, max_age=settings_workflow_image_cache_time.value)
return response
def serve_file_to_browser(file_path,
file_to_serve,
public=False,
hide_name=False):
""" Stream a file to the browser in a safe way
:param file_path: the path on disk to the file
:param file_to_serve: the core.models.File object to serve
:param public: boolean
:param hide_name: boolean
:return: HttpStreamingResponse object
"""
# stream the response to the browser
# we use the UUID filename to avoid any security risks of putting user content in headers
# we set a chunk size of 8192 so that the entire file isn't loaded into memory if it's large
filename, extension = os.path.splitext(file_to_serve.original_filename)
if file_to_serve.mime_type in IMAGE_MIMETYPES:
response = HttpResponse(
FileWrapper(open(file_path, 'rb'), 8192),
content_type=file_to_serve.mime_type,
)
patch_cache_control(response, max_age=600)
else:
response = StreamingHttpResponse(FileWrapper(open(file_path, 'rb'),
8192),
content_type=file_to_serve.mime_type)
response['Content-Length'] = os.path.getsize(file_path)
if public:
response['Content-Disposition'] = 'attachment; filename="{0}"'.format(
file_to_serve.public_download_name())
elif hide_name:
response['Content-Disposition'] = 'attachment; filename="{0}"'.format(
file_to_serve.uuid_filename, )
else:
response[
'Content-Disposition'] = 'attachment; filename="{0}{1}"'.format(
slugify(filename), extension)
return response
def utm_redirect(request, pk, source=None, medium=None, name=None):
try:
content = Content.objects.get(pk=pk)
except Content.DoesNotExist:
# should really just return whatever handler404 is here
response = TemplateResponse(request, "404.html", {}, status=404)
patch_cache_control(response, no_cache=True)
return response
content_url = content.get_absolute_url()
# UTM Tracking only works if all three are present...
if source and medium and name:
query_string = urlencode({
"utm_source": utm_source.get(source, "none"),
"utm_medium": utm_medium.get(medium, "none"),
"utm_campaign": utm_campaign.get("utm_campaign", "default")
})
content_url = "{}?{}".format(content_url, query_string)
return HttpResponsePermanentRedirect(content_url)
def process_response(self, request, response):
"""
Add 'Cache-Control' and 'Expires' HTTP headers to responses.
CACHE_MAX_AGE tells the user's browser how many seconds it can
serve the cached representation without having to check with the
origin server.
CACHE_SHARED_MAX_AGE is the same as CACHE_MAX_AGE, but it applies
to public caches.
The 'Expires' HTTP header is added for completeness, though
'Cache-Control' has been adopted pretty much everywhere and is the
HTTP/1.1 standard.
"""
params = dict(
max_age = CACHE_MAX_AGE,
s_maxage = CACHE_SHARED_MAX_AGE,
)
patch_cache_control(response, **params)
response['Expires'] = http_date(time.time() + CACHE_MAX_AGE)
return response
def process_response(self, request, response):
"""
Add 'Cache-Control' and 'Expires' HTTP headers to responses.
CACHE_MAX_AGE tells the user's browser how many seconds it can
serve the cached representation without having to check with the
origin server.
CACHE_SHARED_MAX_AGE is the same as CACHE_MAX_AGE, but it applies
to public caches.
The 'Expires' HTTP header is added for completeness, though
'Cache-Control' has been adopted pretty much everywhere and is the
HTTP/1.1 standard.
"""
params = dict(
max_age=CACHE_MAX_AGE,
s_maxage=CACHE_SHARED_MAX_AGE,
)
patch_cache_control(response, **params)
response['Expires'] = http_date(time.time() + CACHE_MAX_AGE)
return response
def generic_faculty(request, *args, **kwargs):
level = 'faculty'
role = kwargs.get('role', '')
category = kwargs.get('category', '')
subcategory = kwargs.get('subcategory', '')
if role == 'dean':
is_authorized = auth.is_authorized(sciper=request.user.sciper,
section=level,
category=category)
elif role == "associate-dean":
is_authorized = auth.is_authorized(sciper=request.user.sciper,
section=role,
category=category)
else:
is_authorized = auth.is_authorized(sciper=request.user.sciper,
section=level,
category=category)
if not is_authorized:
raise PermissionDenied()
context = {
'tableau_base_url': settings.TABLEAU_BASE_URL,
'level': level,
'role': role,
'category': category,
'subcategory': subcategory
}
if subcategory:
template_path = 'dashboard/faculty/{}/{}/{}.html'.format(
role, category, subcategory)
else:
template_path = 'dashboard/faculty/{}/{}.html'.format(role, category)
response = render(request, template_path, context=context)
patch_cache_control(response, private=True)
return response
def __call__(self, request):
public_headers = {
'public': True,
'max-age': 60 * 5, # 5 minutes, 300 seconds
'stale-while-revalidate': 60 * 5, # 5 minutes, 300 seconds
'stale-if-error': (60 * 60) * 24, # 1 day, 86400 seconds
}
private_headers = {
'private': True,
'max-age': 0, # seconds
'must-revalidate': True,
}
authenticated = request.META[settings.KONG_AUTH_HEADER]
headers = public_headers if not authenticated else private_headers
response = self.get_response(request)
if not response.get('Cache-Control'):
patch_cache_control(response, **headers)
patch_vary_headers(response, ['Accept'])
return response
def generic_personal(request, *args, **kwargs):
level = 'personal'
sciper = kwargs.get('sciper', '')
category = kwargs.get('category', '')
subcategory = kwargs.get('subcategory', '')
is_authorized = auth.is_authorized(sciper=request.user.sciper,
section=level,
category=category)
if not is_authorized:
raise PermissionDenied()
# prevent users to access other people information
if sciper != str(request.user.sciper):
raise PermissionDenied()
institute = epfl_ldap.get_institute(
sciper, official_institutes=settings.STI_INSTITUTES)
context = {
'tableau_base_url': settings.TABLEAU_BASE_URL,
'level': 'personal',
'sciper': sciper,
'category': category,
'subcategory': subcategory,
'institute': institute,
}
if subcategory:
template_path = 'dashboard/personal/{}/{}.html'.format(
category, subcategory)
else:
template_path = 'dashboard/personal/{}.html'.format(category)
response = render(request, template_path, context)
patch_cache_control(response, private=True)
return response
def utm_redirect(request, pk, source=None, medium=None, name=None):
try:
content = Content.objects.get(pk=pk)
except Content.DoesNotExist:
# should really just return whatever handler404 is here
response = TemplateResponse(request, "404.html", {}, status=404)
patch_cache_control(response, no_cache=True)
return response
content_url = content.get_absolute_url()
# UTM Tracking only works if all three are present...
if source and medium and name:
query_string = urlencode({
"utm_source":
utm_source.get(source, "none"),
"utm_medium":
utm_medium.get(medium, "none"),
"utm_campaign":
utm_campaign.get("utm_campaign", "default")
})
content_url = "{}?{}".format(content_url, query_string)
return HttpResponsePermanentRedirect(content_url)
def wrapper(*args, **kwargs):
response = decorated_method(*args, **kwargs)
patch_cache_control(
response, no_cache=True, no_store=True, must_revalidate=True,
max_age=0)
return response
def dispatch(self, *args, **kwargs):
response = super(CachedTemplate, self).dispatch(*args, **kwargs)
patch_cache_control(response, public=True, max_age=self.get_cache_timeout())
return response
def get(self, request, *args, **kwargs):
response = super(CacheMixin, self).get(request, *args, **kwargs)
patch_cache_control(response, public=True, max_age=MAX_AGE)
response['Pragma'] = 'Public'
return response
if request.body != None and len(request.body) > 0:
newrequest.add_data(request.body)
proxied_request = urllib2.urlopen(newrequest, timeout=20)
status_code = proxied_request.code
mimetype = proxied_request.headers.typeheader or mimetypes.guess_type(url)
content = proxied_request.read()
except urllib2.HTTPError, e:
status = {'status': 'error', 'details': 'Proxy HTTPError = ' + str(e.code)}
errorCode = 'Proxy HTTPError = ' + str(e.code)
except urllib2.URLError, e:
status = {'status': 'error', 'details': 'Proxy URLError = ' + str(e.reason)}
errorCode = 'Proxy URLError = ' + str(e.reason)
except Exception:
status = {'status': 'error', 'details': 'Proxy generic exception'}
import traceback
errorCode = 'Proxy generic exception: ' + traceback.format_exc()
else:
response = HttpResponse(content, status=status_code, mimetype=mimetype)
if ".png" in url or ".jpg" in url:
patch_cache_control(response, max_age=60 * 60 * 1, public=True) #Cache for 1 hour
return response
if errorCode and len(errorCode):
logger.error(errorCode)
output = json.dumps(status)
return HttpResponse(output, content_type="application/json")
def wrapper(*args, **kwargs):
response = function(*args, **kwargs)
patch_cache_control(response, no_cache=True, no_store=True,
must_revalidate=True, max_age=0)
return response
