def test_performance():
token = ImageToken(referrer=referrer)
t0 = time.time()
for i in range(1000):
ImageToken.decode(token.encode(secret='test'), secret='test')
cost = int((time.time() - t0) * 1000)
LOG.info('ImageToken 1000 encode + decode cost {}ms'.format(cost))
def story_get_by_offset(
request,
feed_unionid: T.feed_unionid.object,
offset: T.int.min(0).optional,
detail: StoryDetailSchema,
set_readed: T.bool.default(False),
) -> StorySchema:
"""Story detail"""
check_unionid(request, feed_unionid)
try:
story = UnionStory.get_by_feed_offset(feed_unionid,
offset,
detail=detail)
except StoryNotFoundError:
return Response({"message": "does not exist"}, status=400)
if set_readed:
try:
UnionFeed.set_story_offset(feed_unionid, offset + 1)
except FeedStoryOffsetError as ex:
return Response({'message': str(ex)}, status=400)
except ConcurrentUpdateError as ex:
LOG.error(f'ConcurrentUpdateError: story set_readed {ex}',
exc_info=ex)
image_token = ImageToken(
referrer=story.link,
feed=feed_unionid.feed_id,
offset=offset,
).encode(secret=CONFIG.image_token_secret)
ret = story.to_dict()
ret.update(image_token=image_token)
return ret
def test_encode_decode():
token = ImageToken(referrer=referrer)
assert repr(token)
got = ImageToken.decode(token.encode(secret='test'), secret='test')
assert got.referrer == referrer
assert got.feed is None
assert got.offset is None
assert got.timestamp == token.timestamp
token = ImageToken(referrer=referrer, feed=123, offset=0)
assert repr(token)
got = ImageToken.decode(token.encode(secret='test'), secret='test')
assert got.referrer == referrer
assert got.feed == 123
assert got.offset == 0
assert got.timestamp == token.timestamp
def test_decode_expires():
timestamp = 1600000000
token = ImageToken(timestamp=timestamp).encode(secret='test')
def clock():
return 1600001000
got = ImageToken.decode(token, secret='test', expires=1001, clock=clock)
assert got.timestamp == timestamp
with pytest.raises(ImageTokenExpiredError):
ImageToken.decode(token, secret='test', expires=999, clock=clock)
def story_get_by_offset(
request,
feed_unionid: T.feed_unionid.object,
offset: T.int.min(0).optional,
detail: StoryDetailSchema,
) -> StorySchema:
"""Story detail"""
check_unionid(request, feed_unionid)
try:
story = UnionStory.get_by_feed_offset(feed_unionid, offset, detail=detail)
except StoryNotFoundError:
return Response({"message": "does not exist"}, status=400)
image_token = ImageToken(referrer=story.link)\
.encode(secret=CONFIG.image_token_secret)
ret = story.to_dict()
ret.update(image_token=image_token)
return ret
def test_decode_signature():
token = ImageToken().encode(secret='test')
with pytest.raises(ImageTokenDecodeError):
ImageToken.decode(token, secret='xxx')
def test_encode_decode():
token = ImageToken(referrer=referrer)
assert repr(token)
got = ImageToken.decode(token.encode(secret='test'), secret='test')
assert got.referrer == referrer
assert got.timestamp == token.timestamp