Commit Graph

112 Commits

Author SHA1 Message Date
Joffrey JAFFEUX
5cb00d5528 DEV: s/\$redis/Discourse\.redis
With manual merge conflicts
2019-12-03 14:26:57 +01:00
Sam Saffron
62141b6316 FEATURE: enable_performance_http_headers for performance diagnostics
This adds support for DISCOURSE_ENABLE_PERFORMANCE_HTTP_HEADERS
when set to `true` this will turn on performance related headers

```text
X-Redis-Calls: 10     # number of redis calls
X-Redis-Time: 1.02    # redis time in seconds
X-Sql-Commands: 102   # number of SQL commands
X-Sql-Time: 1.02      # duration in SQL in seconds
X-Queue-Time: 1.01    # time the request sat in queue (depends on NGINX)
```

To get queue time NGINX must provide: HTTP_X_REQUEST_START

We do not recommend you enable this without thinking, it exposes information
about what your page is doing, usually you would only enable this if you
intend to strip off the headers further down the stream in a proxy
2019-06-05 16:08:11 +10:00
Maja Komel
42809f4d69 FIX: use crawler layout when saving url in Wayback Machine (#7667) 2019-06-03 12:13:32 +10:00
Sam Saffron
30990006a9 DEV: enable frozen string literal on all files
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
2019-05-13 09:31:32 +08:00
Penar Musaraj
a4eb523af6 Track Discourse user agent pageviews as crawler
Since 5bfe051e, Discourse user agents are marked as non-crawlers (to avoid accidental blacklisting). This makes sure pageviews for these agents are tracked as crawler hits.
2019-05-08 10:38:55 -04:00
David Taylor
8963f1af30
FEATURE: Optional detailed performance logging for Sidekiq jobs (#7091)
By default, this does nothing. Two environment variables are available:

- `DISCOURSE_LOG_SIDEKIQ`

  Set to `"1"` to enable logging. This will log all completed jobs to `log/rails/sidekiq.log`, along with various db/redis/network statistics. This is useful to track down poorly performing jobs.

- `DISCOURSE_LOG_SIDEKIQ_INTERVAL`

  (seconds) Check running jobs periodically, and log their current duration. They will appear in the logs with `status:pending`. This is useful to track down jobs which take a long time, then crash sidekiq before completing.
2019-03-05 11:19:11 +00:00
Guo Xiang Tan
c732ae9ca9 FIX: Don't update User#last_seen_at when PG is in readonly. 2019-01-21 13:29:29 +08:00
Guo Xiang Tan
e2a20d90fe FIX: Don't log request when Discourse is in readonly due to PG. 2019-01-21 11:04:32 +08:00
Sam
a19170a4c2 DEV: avoid require_dependency for some libs
This avoids require dependency on method_profiler and anon cache.

It means that if there is any change to these files the reloader will not pick it up.

Previously the reloader was picking up the anon cache twice causing it to double load on boot.

This caused warnings.

Long term my plan is to give up on require dependency and instead use:

https://github.com/Shopify/autoload_reloader
2018-12-31 10:53:30 +11:00
Sam
939b82ef0c DEV: correct intermittent test failure
ActionController::BadRequest can not be re-dispatched, under some conditions
we are getting this vs InvalidParameterError in the following test

59c56bd20f/spec/requests/application_controller_spec.rb (L34-L62)
2018-12-13 18:27:13 +11:00
David Taylor
c7c56af397
FEATURE: Allow connecting associated accounts when two-factor is enabled (#6754)
Previously the 'reconnect' process was a bit magic - IF you were already logged into discourse, and followed the auth flow, your account would be reconnected and you would be 'logged in again'.

Now, we explicitly check for a reconnect=true parameter when the flow is started, store it in the session, and then only follow the reconnect logic if that variable is present. Setting this parameter also skips the 'logged in again' step, which means reconnect now works with 2fa enabled.
2018-12-11 13:19:00 +00:00
Sam
955cdad649 FIX: exec_params needs instrumentation
the method no longer routes to "exec" or "async_exec" in latest PG so we
need to explicitly intercept
2018-12-10 14:28:10 +11:00
David Taylor
4e010382cc REFACTOR: Initialize auth providers after plugin.activate!
Also added some helpful functionality for plugin developers:
- Raises RuntimeException if the auth provider has been registered too late
- Logs use of deprecated parameters
2018-11-30 16:58:18 +00:00
Sam
e7001f879a SECURITY: enforce hostname to match discourse hostname
This ensures that the hostname rails uses for various helpers always matches
the Discourse hostname
2018-11-15 15:23:06 +11:00
Sam
5b630f3188 FIX: stop logging every time invalid params are sent
Previously we were logging warning for invalid encoded params, this can
cause a log flood
2018-10-05 14:33:19 +10:00
Neil Lalonde
526ffc4966 FIX: error in response body to blocked crawlers, showing 500 Internal Server Error with status of 403 2018-09-14 15:40:20 -04:00
Neil Lalonde
b87a089822 FIX: don't block api requests when whitelisted_crawler_user_agents is set 2018-09-14 15:40:20 -04:00
Sam
168ffd8384 FEATURE: group warnings about IP level rate limiting 2018-08-13 14:38:20 +10:00
Osama Sayegh
0b7ed8ffaf FEATURE: backend support for user-selectable components
* FEATURE: backend support for user-selectable components

* fix problems with previewing default theme

* rename preview_key => preview_theme_id

* omit default theme from child themes dropdown and try a different fix

* cache & freeze stylesheets arrays
2018-08-08 14:46:34 +10:00
Sam
379384ae1e FIX: never block /srv/status which is used for health checks
This route is also very cheap so blocking it is not required

It is still rate limited and so on elsewhere
2018-07-18 12:37:01 +10:00
OsamaSayegh
decf1f27cf FEATURE: Groundwork for user-selectable theme components
* Phase 0 for user-selectable theme components

- Drops `key` column from the `themes` table
- Drops `theme_key` column from the `user_options` table
- Adds `theme_ids` (array of ints default []) column to the `user_options` table and migrates data from `theme_key` to the new column.
- Removes the `default_theme_key` site setting and adds `default_theme_id` instead.
- Replaces `theme_key` cookie with a new one called `theme_ids`
- no longer need Theme.settings_for_client
2018-07-12 14:18:21 +10:00
Sam
e72fd7ae4e FIX: move crawler blocking into anon cache
This refinement of previous fix moves the crawler blocking into
anonymous cache

This ensures we never poison the cache incorrectly when blocking crawlers
2018-07-04 11:14:43 +10:00
Sam
7f98ed69cd FIX: move crawler blocking to app controller
We need access to site settings in multisite, we do not have access
yet if we attempt to get them in request tracker middleware
2018-07-04 10:30:50 +10:00
Neil Lalonde
e8a6323bea remove crawler blocking until multisite support 2018-07-03 17:54:45 -04:00
Sam
035312d501 FIX: specify path for dosp cookie 2018-04-24 11:07:58 -04:00
Sam
ded84a4b58 PERF: improve performance once logged in rate limiter hits
If "logged in" is being forced anonymous on certain routes, trigger
the protection for any requests that spend 50ms queueing

This means that ...

1. You need to trip it by having 3 requests take longer than 1 second in 10 second interval
2. Once tripped, if your route is still spending 50m queueuing it will continue to be protected

This means that site will continue to function with almost no delays while it is scaling up to handle the new load
2018-04-23 11:55:25 +10:00
Sam
4810ce3607 correct regression 2018-04-18 21:04:08 +10:00
Sam
59cd7894d9 FEATURE: if site is under extreme load show anon view
If a particular path is being hit extremely hard by logged on users,
revert to anonymous cached view.

This will only come into effect if 3 requests queue for longer than 2 seconds
on a *single* path.

This can happen if a URL is shared with the entire forum base and everyone
is logged on
2018-04-18 16:58:57 +10:00
Neil Lalonde
b87fa6d749 FIX: blacklisted crawlers could get through by omitting the accept header 2018-04-17 12:39:30 -04:00
Sam
9980f18d86 FEATURE: track request queueing as early as possible 2018-04-17 18:06:17 +10:00
Neil Lalonde
4d12ff2e8a when writing cache, remove elements from the user agents list. also return a message and content type when blocking a crawler. 2018-03-27 13:44:14 -04:00
Neil Lalonde
a84bb81ab5 only applies to get html requests 2018-03-22 17:57:44 -04:00
Neil Lalonde
ced7e9a691 FEATURE: control which web crawlers can access using a whitelist or blacklist 2018-03-22 15:41:02 -04:00
Sam
0134e41286 FEATURE: detect when client thinks user is logged on but is not
This cleans up an error condition where UI thinks a user is logged on
but the user is not. If this happens user will be prompted to refresh.
2018-03-06 16:49:31 +11:00
Sam
f0d5f83424 FEATURE: limit assets less that non asset paths
By default assets can be requested up to 200 times per 10 seconds
from the app, this includes CSS and avatars
2018-03-06 15:20:39 +11:00
Sam
f295a18e94 FIX: stop double counting net calls in logs 2018-02-28 10:45:11 +11:00
Sam
ca1a3f37e3 FEATURE: add instrumentation for all external net calls 2018-02-21 15:20:29 +11:00
Guo Xiang Tan
3e835047da Remove "already initialized" constant warning. 2018-02-13 08:55:15 +08:00
Sam Saffron
df8e43abdd use lazy & instead of try
unregister ip skipper in test
raise if called when a skipper is in play
2018-02-06 10:38:15 +11:00
Robin Ward
eefd226611 Add extensibility point to request_tracker to skip IP addresses
This is useful if you want to run a per IP rate limiter but want to be
able to skip some IPs with custom logic.
2018-02-05 17:49:40 -05:00
Sam
2437b0d531 FIX: regression, missing 404 page 2018-01-23 09:00:28 +11:00
Sam
f26ff290c3 FEATURE: Shorten setting name to max_reqs
So it is consistent with other settings
2018-01-22 13:18:30 +11:00
Sam
8bf91b8dca correct tracking of x runtime 2018-01-19 17:51:19 +11:00
Sam
8ad43f01c2 FIX: correctly log topic timings as background 2018-01-19 10:37:43 +11:00
Sam
12872d03be PERF: run post timings in background
This means that if a very large amount of registered users hit
a single topic we will handle it gracefully, even if db gets slow.
2018-01-19 08:27:29 +11:00
Sam
442a17bfb2 PERF: bypass omniauth unless in an auth path 2018-01-15 12:44:54 +11:00
Sam
49ed382c2a FIX: return 429 when admin api key is limited on admin route
This also handles a general case where exceptions leak out prior to being handled by the application controller
2018-01-12 14:15:26 +11:00
Sam
cecd7d0d07 FEATURE: global rate limiter can bypass local IPs 2018-01-08 08:39:17 +11:00
Sam
715cb98e95 add better diagnostics for rate limits 2018-01-05 12:14:28 +11:00
Sam
bbc606988f improve message 2017-12-20 10:12:33 +11:00