def check_rate_limit(request, username):
if STAGING:
return False
rate_limit = 10
return (not RateLimit('login:'******'REMOTE_ADDR'], rate_limit).allowed()
or not RateLimit('login:' + username, rate_limit).allowed())
def check_star_rate_limit(request, comment):
from drawquest.apps.stars.models import get_star_sticker
# Calculate if this user has exceeded the stickering rate limit.
prefix = 'user:{}:stick_limit:'.format(request.user.id)
if not RateLimit(prefix + 'h', 500, 60 * 60).allowed() or not RateLimit(
prefix + 'd', 1000, 8 * 60 * 60).allowed():
Metrics.sticker_ratelimit.record(
request,
sticker_type=get_star_sticker().type_id,
comment=comment.id)
raise ServiceError("Attempting to star too quickly.")
def post_quest_comment(request, quest_id, content_id, fact_metadata={},
facebook_share=False, facebook_access_token=None,
twitter_share=False, twitter_access_token=None, twitter_access_token_secret=None,
email_share=False, email_recipients=[],
resolve_share_ids=[],
uuid=None):
if not request.user.is_staff and not settings.STAGING:
prefix = 'user:{}:post_limit:'.format(request.user.id)
if not RateLimit(prefix+'h', 60, 60*60).allowed() or not RateLimit(prefix+'d', 100, 8*60*60).allowed():
raise ServiceError("Attempting to post drawings too quickly.")
_, parent_comment, content, _, _ = validate_and_clean_comment(
request.user,
parent_comment=quest_id,
reply_content=content_id,
)
if facebook_share:
facebook_share = sns_publishing.facebook_share_pre_post(request, facebook_access_token)
if twitter_share:
twitter_share = sns_publishing.twitter_share_pre_post(request, twitter_access_token, twitter_access_token_secret)
comment = QuestComment.create_and_post(request, request.user, content, parent_comment,
uuid=uuid, fact_metadata=fact_metadata, debug_content_id=content_id)
if facebook_share:
sns_publishing.facebook_share_post_post(request, facebook_access_token, comment)
if twitter_share:
sns_publishing.twitter_share_post_post(request, twitter_access_token, twitter_access_token_secret, comment)
for share_id in resolve_share_ids:
share = ShareTrackingUrl.objects.get(id=share_id)
if share.redirect_url:
pass #TODO log some error here without failing this request
share.redirect_url = comment.get_share_page_url()
share.save()
if email_share:
@bgwork.defer
def defer_email_share():
sns_publishing.share_comment_by_email(comment, request.user, email_recipients)
return {
'comment': comment.details(),
'balance': economy.balance(request.user),
}
def add_sticker_to_comment(request, comment_id, type_id, epic_message=None):
""" Stickers a comment. You can be logged in or out. """
sticker = stickers.get(int(type_id))
comment = get_object_or_404(models.Comment, pk=comment_id)
if epic_message and len(epic_message) > knobs.STICKER_MESSAGE_MAX_LENGTH:
raise ServiceError("Message is too long.")
elif epic_message and not (sticker.cost and sticker.cost >=
knobs.EPIC_STICKER_COST_THRESHOLD):
raise ServiceError("Messages can only be attached to epic stickers.")
# Calculate if this user has exceeded the stickering rate limit.
prefix = 'user:%s:stick_limit:' % request.user.id
if not RateLimit(prefix + 'h', 600, 60 * 60).allowed() or not RateLimit(
prefix + 'd', 1000, 8 * 60 * 60).allowed():
Metrics.sticker_ratelimit.record(request,
sticker_type=sticker.type_id,
comment=comment.id)
raise ServiceError("Attempting to sticker too quickly.")
prev_top_sticker = comment.details().top_sticker()
remaining = _sticker_comment(request,
comment,
sticker.type_id,
epic_message=epic_message)
Metrics.sticker.record(request,
sticker_type=sticker.type_id,
comment=comment.id)
comment_details = comment.details()
top_sticker = comment_details.top_sticker()
@bgwork.defer
def update_stickered_users():
get_most_stickered_unfollowed_users(request.user).force()
if prev_top_sticker is None or prev_top_sticker['type_id'] != top_sticker:
@bgwork.defer
def update_footer():
if comment.footer.should_exist():
comment.footer.call_update_in_new_process()
return {
'new_counts': comment_details.sticker_counts,
'sorted_counts': comment_details.sorted_sticker_counts(),
'top_sticker': top_sticker,
'remaining': remaining,
}
class TestRateLimiting(CanvasTestCase):
def after_setUp(self):
self.rl = RateLimit('test', 2, 100)
def test_rate_limit_allows_one(self):
self.assertTrue(self.rl.allowed())
def test_rate_limit_allows_two(self):
self.assertTrue(self.rl.allowed())
self.assertTrue(self.rl.allowed())
def test_rate_disallows_the_third(self):
self.assertTrue(self.rl.allowed())
self.assertTrue(self.rl.allowed())
self.assertFalse(self.rl.allowed())
def test_rate_limit_restarts_after_time(self):
with override_service('time', FakeTimeProvider):
self.assertTrue(self.rl.allowed())
self.assertTrue(self.rl.allowed())
Services.time.step(100)
self.assertTrue(self.rl.allowed())
self.assertTrue(self.rl.allowed())
self.assertFalse(self.rl.allowed())
class TestRateLimiting(CanvasTestCase):
def after_setUp(self):
self.rl = RateLimit('test', 2, 100)
def test_rate_limit_allows_one(self):
self.assertTrue(self.rl.allowed())
def test_rate_limit_allows_two(self):
self.assertTrue(self.rl.allowed())
self.assertTrue(self.rl.allowed())
def test_rate_disallows_the_third(self):
self.assertTrue(self.rl.allowed())
self.assertTrue(self.rl.allowed())
self.assertFalse(self.rl.allowed())
def test_rate_limit_restarts_after_time(self):
with override_service('time', FakeTimeProvider):
self.assertTrue(self.rl.allowed())
self.assertTrue(self.rl.allowed())
Services.time.step(100)
self.assertTrue(self.rl.allowed())
self.assertTrue(self.rl.allowed())
self.assertFalse(self.rl.allowed())
def post_quest_comment(request,
quest_id,
content_id,
fact_metadata={},
facebook_share=False,
facebook_access_token=None):
# Rate-limit?
if not request.user.is_staff:
prefix = 'user:{}:post_limit:'.format(request.user.id)
if not RateLimit(prefix + 'h', 60, 60 * 60).allowed() or not RateLimit(
prefix + 'd', 100, 8 * 60 * 60).allowed():
raise ServiceError("Attempting to post drawings too quickly.")
_, parent_comment, content, _, _, _ = validate_and_clean_comment(
request.user,
parent_comment=quest_id,
reply_content=content_id,
)
if facebook_share:
if not facebook_access_token:
raise ServiceError(
"Can't share to your timeline if you haven't signed into Facebook yet."
)
associate_facebook_account(request.user, facebook_access_token)
comment = QuestComment.create_and_post(request,
request.user,
content,
parent_comment,
fact_metadata=fact_metadata)
if facebook_share:
complete_quest(request.user,
comment,
facebook_access_token,
request=request)
return {
'comment': comment.details(),
'balance': economy.balance(request.user),
}
def after_setUp(self):
self.rl = RateLimit('test', 2, 100)
def create_quest(request,
title,
content_id=None,
invite_followees=False,
facebook_share=False,
facebook_access_token=None,
twitter_share=False,
twitter_access_token=None,
twitter_access_token_secret=None,
email_share=False,
email_recipients=[],
resolve_share_ids=[]):
if not request.user.is_staff and not settings.STAGING:
prefix = 'user:{}:create_quest_limit:'.format(request.user.id)
if not RateLimit(prefix + 'h', 60, 60 * 60).allowed() or not RateLimit(
prefix + 'd', 100, 8 * 60 * 60).allowed():
raise ServiceError("Attempting to create quests too quickly.")
_, _, content, _, title = validate_and_clean_comment(
request.user,
parent_comment=None,
reply_content=content_id,
title=title,
)
if facebook_share:
facebook_share = sns_publishing.facebook_share_pre_post(
request, facebook_access_token)
if twitter_share:
twitter_share = sns_publishing.twitter_share_pre_post(
request, twitter_access_token, twitter_access_token_secret)
quest = Quest.create_and_post(request,
request.user,
title,
content=content,
ugq=True)
models.autocurate_for_flag_words(quest)
if invite_followees:
quest.invited_users.invite(request.user,
request.user.followers(),
ignore_errors=True)
if facebook_share:
sns_publishing.facebook_share_post_post(request, facebook_access_token,
quest)
if twitter_share:
sns_publishing.twitter_share_post_post(request, twitter_access_token,
twitter_access_token_secret,
quest)
for share_id in resolve_share_ids:
share = ShareTrackingUrl.objects.get(id=share_id)
if share.redirect_url:
pass #TODO log some error here without failing this request
share.redirect_url = quest.get_share_page_url()
share.save()
if email_share:
@bgwork.defer
def defer_email_share():
sns_publishing.share_quest_by_email(quest, request.user,
email_recipients)
@bgwork.defer
def alert_followers():
for follower_id in request.user.redis.new_followers.zrange(0, -1):
RealtimeChannel('user:{}:rt_tab_badges'.format(follower_id),
1).publish({'tab_badge_update': 'draw'})
return {
'quest': quest.details(),
}
def allowed(key, val):
if request.user.is_staff:
return True
freq, timespan = val
return RateLimit(prefix+key, freq, timespan).allowed()
def after_setUp(self):
self.rl = RateLimit('test', 2, 100)
def check_rate_limit(request):
return RateLimit('apicall:' + request.META['REMOTE_ADDR'], knobs.PUBLIC_API_RATE_LIMIT).allowed()
