def preview_snippet(request):
"""
Build a snippet using info from the POST parameters, and preview that
snippet on a mock about:home page.
"""
try:
template_id = int(request.POST.get('template_id', None))
except (TypeError, ValueError):
return HttpResponseBadRequest()
template = get_object_or_none(SnippetTemplate, id=template_id)
data = request.POST.get('data', None)
# Validate that data is JSON.
try:
json.loads(data)
except (TypeError, ValueError):
data = None
# If your parameters are wrong, I have no sympathy for you.
if data is None or template is None:
return HttpResponseBadRequest()
# Build a snippet that isn't saved so we can render it.
snippet = Snippet(template=template, data=data)
if strtobool(request.POST.get('activity_stream', 'false')):
template_name = 'base/preview_as.jinja'
preview_client = Client(5, 'Firefox', '57.0', 'default', 'default',
'en-US', 'release', 'default', 'default',
'default')
else:
template_name = 'base/preview.jinja'
preview_client = Client(4, 'Firefox', '24.0', 'default', 'default',
'en-US', 'release', 'default', 'default',
'default')
skip_boilerplate = request.POST.get('skip_boilerplate', 'false')
skip_boilerplate = strtobool(skip_boilerplate)
if skip_boilerplate:
template_name = 'base/preview_without_shell.jinja'
return render(
request, template_name, {
'snippets_json': json.dumps([snippet.to_dict()]),
'client': preview_client,
'preview': True,
'current_firefox_major_version':
util.current_firefox_major_version(),
})
def fetch_json_snippets(request, **kwargs):
statsd.incr('serve.json_snippets')
client = Client(**kwargs)
matching_snippets = (JSONSnippet.objects.filter(
disabled=False).match_client(client).filter_by_available())
return HttpResponse(json.dumps(matching_snippets, cls=JSONSnippetEncoder),
content_type='application/json')
def fetch_json_snippets(request, **kwargs):
client = Client(**kwargs)
matching_snippets = (JSONSnippet.cached_objects.filter(
disabled=False).match_client(client).order_by(
'priority').filter_by_available())
return HttpResponse(json.dumps(matching_snippets, cls=SnippetEncoder),
mimetype='application/json')
def fetch_snippet_pregen_bundle(request, **kwargs):
statsd.incr('serve.bundle_pregen')
client = Client(**kwargs)
product = 'Firefox'
channel = client.channel.lower()
channel = next(
(item
for item in CHANNELS if channel.startswith(item)), None) or 'release'
locale = client.locale.lower()
# Distribution populated by client's distribution if it starts with
# `experiment-`. Otherwise default to `default`.
#
# This is because non-Mozilla distributors of Firefox (e.g. Linux
# Distributions) override the distribution field with their identification.
# We want all Firefox clients to get the default bundle for the locale /
# channel combination, unless they are part of an experiment.
distribution = client.distribution.lower()
if distribution.startswith('experiment-'):
distribution = distribution[11:]
else:
distribution = 'default'
filename = (f'{settings.MEDIA_BUNDLES_PREGEN_ROOT}/{product}/{channel}/'
f'{locale}/{distribution}.json')
full_url = urljoin(settings.CDN_URL or settings.SITE_URL,
urlparse(default_storage.url(filename)).path)
# Remove AWS S3 parameters
full_url = full_url.split('?')[0]
return HttpResponseRedirect(full_url)
def fetch_snippet_bundle(request, **kwargs):
"""
Return one of the following responses:
- 200 with empty body when the bundle is empty
- 302 to a bundle URL after generating it if not cached.
"""
statsd.incr('serve.snippets')
client = Client(**kwargs)
if client.startpage_version == 6:
bundle = ASRSnippetBundle(client)
else:
bundle = SnippetBundle(client)
if bundle.empty:
statsd.incr('bundle.empty')
if client.startpage_version == 6:
# Return valid JSON for Activity Stream Router
return HttpResponse(status=200,
content='{}',
content_type='application/json')
# This is not a 204 because Activity Stream expects content, even if
# it's empty.
return HttpResponse(status=200, content='')
elif bundle.cached:
statsd.incr('bundle.cached')
else:
statsd.incr('bundle.generate')
bundle.generate()
return HttpResponseRedirect(bundle.url)
def fetch_pregenerated_snippets(request, **kwargs):
"""
Return a redirect to a pre-generated bundle of snippets for the
client. If the bundle in question is expired, re-generate it.
"""
client = Client(**kwargs)
bundle = SnippetBundle(client)
if bundle.expired:
bundle.generate()
return HttpResponseRedirect(bundle.url)
def _build_client(self, **client_attrs):
params = {'startpage_version': '4',
'name': 'Firefox',
'version': '23.0a1',
'appbuildid': '20130510041606',
'build_target': 'Darwin_Universal-gcc3',
'locale': 'en-US',
'channel': 'release',
'os_version': 'Darwin 10.8.0',
'distribution': 'default',
'distribution_version': 'default_version'}
params.update(client_attrs)
return Client(**params)
def fetch_snippets(request, **kwargs):
client = Client(**kwargs)
matching_snippets = (Snippet.cached_objects.filter(
disabled=False).match_client(client).order_by(
'priority').select_related('template').filter_by_available())
return render(
request, 'base/fetch_snippets.html', {
'snippets': matching_snippets,
'client': client,
'current_time': strftime('%Y-%m-%dT%H:%M:%SZ', gmtime()),
'locale': client.locale,
})
def fetch_render_snippets(request, **kwargs):
"""Fetch snippets for the client and render them immediately."""
client = Client(**kwargs)
matching_snippets = (Snippet.cached_objects.filter(
disabled=False).match_client(client).order_by(
'priority').select_related('template').filter_by_available())
response = render(request, 'base/fetch_snippets.html', {
'snippets': matching_snippets,
'client': client,
'locale': client.locale,
})
# ETag will be a hash of the response content.
response['ETag'] = hashlib.sha256(response.content).hexdigest()
patch_vary_headers(response, ['If-None-Match'])
return response
def fetch_snippets(request, **kwargs):
"""
Return one of the following responses:
- 204 with the bundle is empty
- 302 to a bundle URL after generating it if not cached.
"""
statsd.incr('serve.snippets')
client = Client(**kwargs)
bundle = SnippetBundle(client)
if bundle.empty:
statsd.incr('bundle.empty')
return HttpResponse(status=204)
elif bundle.cached:
statsd.incr('bundle.cached')
else:
statsd.incr('bundle.generate')
bundle.generate()
return HttpResponseRedirect(bundle.url)
def show_snippet(request, snippet_id, uuid=False):
preview_client = Client('4', 'Firefox', '24.0', 'default', 'default', 'en-US',
'release', 'default', 'default', 'default')
if uuid:
snippet = get_object_or_404(Snippet, uuid=snippet_id)
else:
snippet = get_object_or_404(Snippet, pk=snippet_id)
if snippet.disabled and not request.user.is_authenticated():
raise Http404()
template = 'base/preview.jinja'
if snippet.on_startpage_5:
template = 'base/preview_as.jinja'
return render(request, template, {
'snippets_json': json.dumps([snippet.to_dict()]),
'client': preview_client,
'preview': True,
'current_firefox_major_version': util.current_firefox_major_version(),
})
def fetch_snippets(request, **kwargs):
"""
Return one of the following responses:
- 204 with the bundle is empty
- 302 to a bundle URL after generating it if not cached.
"""
statsd.incr('serve.snippets')
client = Client(**kwargs)
bundle = SnippetBundle(client)
if bundle.empty:
statsd.incr('bundle.empty')
# This is not a 204 because Activity Stream expects content, even if
# it's empty.
return HttpResponse(status=200, content='')
elif bundle.cached:
statsd.incr('bundle.cached')
else:
statsd.incr('bundle.generate')
bundle.generate()
return HttpResponseRedirect(bundle.url)
def _client(self, **kwargs):
client_kwargs = dict((key, '') for key in Client._fields)
client_kwargs.update(kwargs)
return Client(**client_kwargs)
else:
return fetch_render_snippets(request, **kwargs)
@cache_control(public=True, max_age=HTTP_MAX_AGE)
@access_control(max_age=HTTP_MAX_AGE)
def fetch_json_snippets(request, **kwargs):
client = Client(**kwargs)
matching_snippets = (JSONSnippet.cached_objects.filter(
disabled=False).match_client(client).order_by(
'priority').filter_by_available())
return HttpResponse(json.dumps(matching_snippets, cls=SnippetEncoder),
mimetype='application/json')
PREVIEW_CLIENT = Client('4', 'Firefox', '24.0', 'default', 'default', 'en-US',
'release', 'default', 'default', 'default')
@xframe_allow
@csrf_exempt
@permission_required('base.change_snippet')
def preview_snippet(request):
"""
Build a snippet using info from the POST parameters, and preview that
snippet on a mock about:home page.
"""
try:
template_id = int(request.POST.get('template_id', None))
except (TypeError, ValueError):
return HttpResponseBadRequest()
def _client(self, **kwargs):
client_kwargs = dict((key, '') for key in Client._fields)
client_kwargs['startpage_version'] = 4
client_kwargs.update(kwargs)
return Client(**client_kwargs)