def test_url_cache(self):
test_utils.invalidate_widget_video_cache.run_original_for_test()
video = get_video(1)
video_url = video.get_video_url()
# After adding the video, we should be able to look up its ID in the
# cache, given just the URL.
cache_id_1 = video_cache.get_video_id(video_url)
self.assertIsNotNone(cache_id_1)
self.assertTrue(Video.objects.filter(video_id=cache_id_1).exists())
# Remove the video (and make sure it's gone).
video.delete()
self.assertFalse(
Video.objects.filter(videourl__url=video_url).exists())
# Trying to get the video ID out of the cache now actually *creates* the
# video!
cache_id_2 = video_cache.get_video_id(video_url)
self.assertTrue(Video.objects.filter(videourl__url=video_url).exists())
# The video_id will be different than before (since this is a new Video
# record) and the cache should have been updated properly.
self.assertNotEqual(cache_id_1, cache_id_2)
self.assertTrue(Video.objects.filter(video_id=cache_id_2).exists())
def show_widget(self, request, video_url, is_remote, base_state=None, additional_video_urls=None):
video_id = video_cache.get_video_id(video_url)
if video_id is None: # for example, private youtube video.
return None
try:
video_urls = video_cache.get_video_urls(video_id)
except models.Video.DoesNotExist:
video_cache.invalidate_video_id(video_url)
video_id = video_cache.get_video_id(video_url)
video_urls = video_cache.get_video_urls(video_id)
return_value = {
'video_id' : video_id,
'subtitles': None,
}
return_value['video_urls']= video_urls
if additional_video_urls is not None:
for url in additional_video_urls:
video_cache.associate_extra_url(url, video_id)
st_widget_view_statistic_update.delay(video_id=video_id)
add_general_settings(request, return_value)
if request.user.is_authenticated():
return_value['username'] = request.user.username
return_value['drop_down_contents'] = \
video_cache.get_video_languages(video_id)
if base_state is not None and base_state.get("language_code", None) is not None:
lang_pk = base_state.get('language_pk', None)
if lang_pk is None:
lang_code = base_state.get('language_code', None)
lang_pk = video_cache.pk_for_default_language(video_id, lang_code)
subtitles = self._autoplay_subtitles(
request.user, video_id,
lang_pk,
base_state.get('revision', None))
return_value['subtitles'] = subtitles
else:
if is_remote:
autoplay_language = self._find_remote_autoplay_language(request)
language_pk = video_cache.pk_for_default_language(video_id, autoplay_language)
if autoplay_language is not None:
subtitles = self._autoplay_subtitles(
request.user, video_id, language_pk, None)
return_value['subtitles'] = subtitles
return return_value
def show_widget(self,
request,
video_url,
is_remote,
base_state=None,
additional_video_urls=None):
video_id = video_cache.get_video_id(video_url)
if video_id is None: # for example, private youtube video.
return None
if additional_video_urls is not None:
for url in additional_video_urls:
video_cache.associate_extra_url(url, video_id)
models.Video.widget_views_counter(video_id).incr()
widget_views_total_counter.incr()
return_value = {
'video_id': video_id,
'subtitles': None,
}
add_general_settings(request, return_value)
if request.user.is_authenticated():
return_value['username'] = request.user.username
return_value['video_urls'] = video_cache.get_video_urls(video_id)
return_value['drop_down_contents'] = \
self._drop_down_contents(video_id)
if base_state is not None and base_state.get("language_code",
None) is not None:
lang_pk = base_state.get('language_pk', None)
if lang_pk is None:
lang_code = base_state.get('language_code', None)
language = models.SubtitleLanguage.objects.get(
video_id=video_id, language=lang_code)
if language:
lang_pk = language.pk
subtitles = self._autoplay_subtitles(
request.user, video_id, lang_pk,
base_state.get('revision', None))
return_value['subtitles'] = subtitles
else:
if is_remote:
autoplay_language = self._find_remote_autoplay_language(
request)
language = models.Video.objects.get(
video_id=video_id).subtitle_language()
if language is not None:
language_pk = language.pk
else:
language_pk = None
if autoplay_language is not None:
subtitles = self._autoplay_subtitles(
request.user, video_id, language_pk, None)
return_value['subtitles'] = subtitles
return return_value
def test_missing_lang_no_fail(self):
# when sending a nonexisting lang, we should end up with the original lang, since
# others might have been cleared and not gotten through the cache
# we are asserting this won't raise an exception for https://www.pivotaltracker.com/story/show/15348901
url = "http://videos-cdn.mozilla.net/serv/mozhacks/demos/screencasts/londonproject/screencast.ogv"
cache_key = video_cache._video_id_key(url)
video_cache.cache.set(cache_key, "", video_cache.TIMEOUT)
video_id = video_cache.get_video_id(url)
video_cache.get_subtitles_dict(video_id, 0, 0, lambda x: x)
def fetch_video_id_and_settings(self, request, video_url):
video_id = video_cache.get_video_id(video_url)
is_original_language_subtitled = self._subtitle_count(video_id) > 0
general_settings = {}
add_general_settings(request, general_settings)
return {
'video_id': video_id,
'is_original_language_subtitled': is_original_language_subtitled,
'general_settings': general_settings }
def show_widget(self, request, video_url, is_remote, base_state=None, additional_video_urls=None):
video_id = video_cache.get_video_id(video_url)
if video_id is None: # for example, private youtube video.
return None
try:
video_urls = video_cache.get_video_urls(video_id)
except models.Video.DoesNotExist:
video_cache.invalidate_video_id(video_url)
video_id = video_cache.get_video_id(video_url)
video_urls = video_cache.get_video_urls(video_id)
return_value = {"video_id": video_id, "subtitles": None}
return_value["video_urls"] = video_urls
return_value["is_moderated"] = video_cache.get_is_moderated(video_id)
if additional_video_urls is not None:
for url in additional_video_urls:
video_cache.associate_extra_url(url, video_id)
add_general_settings(request, return_value)
if request.user.is_authenticated():
return_value["username"] = request.user.username
return_value["drop_down_contents"] = video_cache.get_video_languages(video_id)
return_value["my_languages"] = get_user_languages_from_request(request)
# keeping both forms valid as backwards compatibility layer
lang_code = base_state and base_state.get("language_code", base_state.get("language", None))
if base_state is not None and lang_code is not None:
lang_pk = base_state.get("language_pk", None)
if lang_pk is None:
lang_pk = video_cache.pk_for_default_language(video_id, lang_code)
subtitles = self._autoplay_subtitles(request.user, video_id, lang_pk, base_state.get("revision", None))
return_value["subtitles"] = subtitles
else:
if is_remote:
autoplay_language = self._find_remote_autoplay_language(request)
language_pk = video_cache.pk_for_default_language(video_id, autoplay_language)
if autoplay_language is not None:
subtitles = self._autoplay_subtitles(request.user, video_id, language_pk, None)
return_value["subtitles"] = subtitles
return return_value
def test_empty_id_show_widget(self):
url = "http://videos-cdn.mozilla.net/serv/mozhacks/demos/screencasts/londonproject/screencast.ogv"
cache_key = video_cache._video_id_key(url)
video, create = Video.get_or_create_for_url(url)
video_cache.cache.set(cache_key, "", video_cache.TIMEOUT)
# we have a bogus url
video_id = video_cache.get_video_id(url)
self.assertTrue(bool(video_id))
try:
Video.objects.get(video_id=video_id)
except Video.DoesNotExist:
self.fail("Should not point to a non existing video")
def show_widget(self, request, video_url, is_remote, base_state=None, additional_video_urls=None):
video_id = video_cache.get_video_id(video_url)
if video_id is None: # for example, private youtube video.
return None
if additional_video_urls is not None:
for url in additional_video_urls:
video_cache.associate_extra_url(url, video_id)
models.Video.widget_views_counter(video_id).incr()
widget_views_total_counter.incr()
return_value = {
'video_id' : video_id,
'subtitles': None,
}
add_general_settings(request, return_value)
if request.user.is_authenticated():
return_value['username'] = request.user.username
return_value['video_urls'] = video_cache.get_video_urls(video_id)
return_value['drop_down_contents'] = \
self._drop_down_contents(video_id)
if base_state is not None and base_state.get("language_code", None) is not None:
lang_pk = base_state.get('language_pk', None)
if lang_pk is None:
lang_code = base_state.get('language_code', None)
language = models.SubtitleLanguage.objects.get(video_id=video_id,language=lang_code)
if language:
lang_pk = language.pk
subtitles = self._autoplay_subtitles(
request.user, video_id,
lang_pk,
base_state.get('revision', None))
return_value['subtitles'] = subtitles
else:
if is_remote:
autoplay_language = self._find_remote_autoplay_language(request)
language = models.Video.objects.get(video_id=video_id).subtitle_language()
if language is not None:
language_pk = language.pk
else:
language_pk = None
if autoplay_language is not None:
subtitles = self._autoplay_subtitles(
request.user, video_id, language_pk, None)
return_value['subtitles'] = subtitles
return return_value
def show_widget(self,
request,
video_url,
is_remote,
base_state=None,
additional_video_urls=None):
try:
video_id = video_cache.get_video_id(video_url)
except Exception as e:
# for example, private youtube video or private widgets
return {"error_msg": unicode(e)}
if video_id is None:
return None
error = self._check_visibility_policy_for_widget(request, video_id)
if error:
return error
video_urls, video_id, error = self._get_video_urls_for_widget(
video_url, video_id)
if error:
return error
resp = {
'video_id': video_id,
'subtitles': None,
'video_urls': video_urls,
'is_moderated': video_cache.get_is_moderated(video_id),
'filename': video_cache.get_download_filename(video_id),
}
if additional_video_urls is not None:
for url in additional_video_urls:
video_cache.associate_extra_url(url, video_id)
add_general_settings(request, resp)
if request.user.is_authenticated():
resp['username'] = request.user.username
resp['drop_down_contents'] = video_cache.get_video_languages(video_id)
resp['my_languages'] = get_user_languages_from_request(request)
resp['subtitles'] = self._get_subtitles_for_widget(
request, base_state, video_id, is_remote)
return resp
def _get_video_urls_for_widget(self, video_url, video_id):
"""Return the video URLs, 'cleaned' video id, and error."""
try:
video_urls = video_cache.get_video_urls(video_id)
except models.Video.DoesNotExist:
video_cache.invalidate_video_id(video_url)
try:
video_id = video_cache.get_video_id(video_url)
except Exception as e:
return None, None, {"error_msg": unicode(e)}
video_urls = video_cache.get_video_urls(video_id)
return video_urls, video_id, None
def test_cache_delete_valid_chars(self):
# this tests depends on memcache being available
try:
from memcache.Client import MemcachedKeyCharacterError
except ImportError:
return
request = RequestMockup(self.user_0)
session = create_two_sub_session(request)
video = session.video
# make sure we have video on cache
video_id = video_cache.get_video_id(video.get_absolute_url(video.get_video_url()))
self.assertEquals(video_id, video.video_id)
self.assertTrue(bool(video_id))
try:
video_cache.invalidate_cache(video_id)
except MemcachedKeyCharacterError:
self.fail("Cache invalidation should not fail")
def test_video_id_not_empty_string(self):
url = "http://videos-cdn.mozilla.net/serv/mozhacks/demos/screencasts/londonproject/screencast.ogv"
cache_key = video_cache._video_id_key(url)
video_cache.cache.set(cache_key, "", video_cache.TIMEOUT)
video_id = video_cache.get_video_id(url)
self.assertTrue(bool(video_id))
