On sites that don't otherwise configure an avatar fallback, Discourse will
now tell the client to get its letter avatars from a location which nginx
proxies to the centralised `avatars.discourse.org` service. This alleviates
privacy concerns, whilst still providing some degree of performance benefit
(no need for every site to delay avatar response by 300ms for image
rendering).
It is still possible to gain the benefits of global image caching and the
lower latency of requesting directly from a CDN, by explicitly changing the
`external_system_avatars_url` site setting to
`https://avatars.discourse.org/letter/{first_letter}/{color}/{size}.png`.
We cap new and unread at 2/5th of SiteSetting.max_tracked_new_unread
This dynamic capping is applied under 2 conditions:
1. New capping is applied once every 15 minutes in the periodical job, this effectively ensures that usually even super active sites are capped at 200 new items
2. Unread capping is applied if a user hits max_tracked_new_unread,
meaning if new + unread == 500, we defer a job that runs within 15 minutes that will cap user at 200 unread
This logic ensures that at worst case a user gets "bad" numbers for 15 minutes and then the system goes ahead and fixes itself up
FEATURE: allow backup interval of up to 30 days
FIX: if a custom file exists in backup directory look at its date
FEATURE: site setting automatic_backups_enabled default true
for spam prevention you can add a regex to auto_block_first_post_regex
this will be applied against all first posts, if it matches post will go
into the approval queue and user will be blocked
Optionally allow admins to apply regex based normalization
to permalinks prior to matching.
This allows us to drop query string, or cleanly ignore slugs, etc.
UX: clean up fade logic so it meshes with new like style
EXTENSIBILITY: add hook for insertion of custom HTML for buttons
UX: stop suppressing share for anon, like expander is not suppressed
old behavior is inconsistent
also reimplements like count expander as a proper button,
adds a nice label for it
Matt Palmer
Régis Hanol
Jeff Atwood
Sam
cpradio
Neil Lalonde
Guo Xiang Tan
Kane York
Robin Ward
Arpit Jalan
