Commit Graph

22 Commits

Author SHA1 Message Date
Andrew Prigorshnev e25dd41aee
FIX: sliding window end time in rate limiter (#11691)
If the sliding window size is N seconds, then a moment at the Nth second
should be considered as the moment outside of the sliding window.

Otherwise, if the sliding window is already full, at the Nth second,
a new call wouldn't be allowed, but a time to wait before the next call
would be equal to zero, which is confusing.

In other words, the end of the time range shouldn't be included in the
sliding window.

Let's say we start at the second 0, and the sliding window size is 10
seconds. In the current version of rate limiter, this sliding window will
be considered as a time range [0, 10] (including the end of the range),
which actually is 11 seconds in length.

After this fix, the time range will be considered as [0, 10)
(excluding the end of the range), which is exactly 10 seconds in length.
2021-01-12 13:26:43 -05:00
Sam 2686d14b9a
PERF: introduce aggressive rate limiting for anonymous (#11129)
Previous to this change our anonymous rate limits acted as a throttle.
New implementation means we now also consider rate limited requests towards
the limit.

This means that if an anonymous user is hammering the server it will not be
able to get any requests through until it subsides with traffic.
2020-11-05 16:36:17 +11:00
Joffrey JAFFEUX 0d3d2c43a0
DEV: s/\$redis/Discourse\.redis (#8431)
This commit also adds a rubocop rule to prevent global variables.
2019-12-03 10:05:53 +01:00
Daniel Waterworth e219588142 DEV: Prefabrication (test optimization) (#7414)
* Introduced fab!, a helper that creates database state for a group

It's almost identical to let_it_be, except:

 1. It creates a new object for each test by default,
 2. You can disable it using PREFABRICATION=0
2019-05-07 13:12:20 +10:00
Sam Saffron 4ea21fa2d0 DEV: use #frozen_string_literal: true on all spec
This change both speeds up specs (less strings to allocate) and helps catch
cases where methods in Discourse are mutating inputs.

Overall we will be migrating everything to use #frozen_string_literal: true
it will take a while, but this is the first and safest move in this direction
2019-04-30 10:27:42 +10:00
Guo Xiang Tan 81ca3677f7 Add guard for `nil` in our `RateLimiter`. 2018-03-01 13:20:42 +08:00
Guo Xiang Tan 5d9f9c2614 FIX: `RateLimiter` max of zero or less should raise rate limit exceeded. 2018-03-01 13:14:46 +08:00
Sam 995bf3c84e correct spec on Ruby 2.3 2017-12-05 07:04:41 +11:00
Sam 5a9622163d FIX: regression around rate limiter 2017-12-04 21:44:16 +11:00
Sam dd70ef3abf Revert "Revert "PERF: improve speed of rate limiter""
This reverts commit 2373d85239.
2017-12-04 21:23:11 +11:00
Sam 2373d85239 Revert "PERF: improve speed of rate limiter"
This reverts commit a9bcdd7f27.
2017-12-04 21:19:28 +11:00
Sam a9bcdd7f27 PERF: improve speed of rate limiter
Also

- adds a global rate limiter option
- cleans up usage in tests
- fixes freeze_time so it handles clock_gettime
2017-12-04 18:17:30 +11:00
Robin Ward 5d4ee2ca1d FEATURE: Warn a user when they have few likes remaining 2016-03-18 11:30:29 -04:00
Robin Ward 06591022fe FEATURE: Generous badge 2016-03-15 16:08:29 -04:00
Andy Waite 3e50313fdc Prepare for separation of RSpec helper files
Since rspec-rails 3, the default installation creates two helper files:
* `spec_helper.rb`
* `rails_helper.rb`

`spec_helper.rb` is intended as a way of running specs that do not
require Rails, whereas `rails_helper.rb` loads Rails (as Discourse's
current `spec_helper.rb` does).

For more information:

https://www.relishapp.com/rspec/rspec-rails/docs/upgrade#default-helper-files

In this commit, I've simply replaced all instances of `spec_helper` with
`rails_helper`, and renamed the original `spec_helper.rb`.

This brings the Discourse project closer to the standard usage of RSpec
in a Rails app.

At present, every spec relies on loading Rails, but there are likely
many that don't need to. In a future pull request, I hope to introduce a
separate, minimal `spec_helper.rb` which can be used in tests which
don't rely on Rails.
2015-12-01 20:39:42 +00:00
Luciano Sousa 0fd98b56d8 few components with rspec3 syntax 2015-01-09 13:34:37 -03:00
Régis Hanol de76b512c1 fix most deprecations in the specs (still some left) 2014-09-25 17:44:48 +02:00
Matt Van Horn d5958f8779 Sliding window rate limiting
Switched the algorithm to use a circular buffer
based on a redis list
2013-05-25 12:37:28 -07:00
Sam 62c60540be pull moderator into own column, rename trust levels 2013-03-19 21:06:11 -07:00
Gosha Arinich 0c99dea153 introduce Enum 2013-03-01 21:16:36 +03:00
Gosha Arinich cafc75b238 remove trailing whitespaces ❤️ 2013-02-26 07:31:35 +03:00
Robin Ward 21b5628528 Initial release of Discourse 2013-02-05 14:16:51 -05:00