This because some remote server might have used third party PuSH hubs
but switch and we don't know about it.
Possible risks here are of course MITM that could force us to rediscover
PuSH hubs from a feed they control, but that currently feels ... meh.
Actually use the renew code
We have the code to check once a day and renew, but currently it's
just in a script directory. This change adds an event listener
hook to check and renew subscriptions daily.
Closes #83
See merge request !38
There was a problem with (specifically at least) PuSHpress for
Wordpress. A previous attempt to perform a DB transaction backfired
because the remote side could connect to the callback before our
commit had gone through.
I take full responsibility for introducing the bug in the first place :)
Among other things (such as permanent subscriptions), Pubsubhubbub 0.4
removed the "sync" verification method. This means that any incoming
PuSH subscription requests that follow the 0.4 spec won't really
_require_that we handle it as a background process, but if we were to
try direct verification of the subscription - and fail - there's no way
we could pick up the ball again. So _essentially_ we require background
processing with retries.
This means we must implement something like the "poorman cron" or
similar, so background processing can be handled
on-demand/on-site-visit. This is how Friendica, Drupal etc. handles it
and is necessary for environments where we can't run separate queue
daemons.
When the poorman-cron-ish thing is implemented, auto-renewal will work
for all users.
PuSH 0.4 spec:
https://pubsubhubbub.googlecode.com/git/pubsubhubbub-core-0.4.html
More on PuSH 0.4 release (incl. breaking changes):
https://groups.google.com/forum/#!msg/pubsubhubbub/7RPlYMds4RI/2mIHQTdV3aoJ
I used this hacky sed-command (run it from your GNU Social root, or change the first grep's path to where it actually lies) to do a rough fix on all ::staticGet calls and rename them to ::getKV
sed -i -s -e '/DataObject::staticGet/I!s/::staticGet/::getKV/Ig' $(grep -R ::staticGet `pwd`/* | grep -v -e '^extlib' | grep -v DataObject:: |grep -v "function staticGet"|cut -d: -f1 |sort |uniq)
If you're applying this, remember to change the Managed_DataObject and Memcached_DataObject function definitions of staticGet to getKV!
This might of course take some getting used to, or modification fo StatusNet plugins, but the result is that all the static calls (to staticGet) are now properly made without breaking PHP Strict Standards. Standards are there to be followed (and they caused some very bad confusion when used with get_called_class)
Reasonably any plugin or code that tests for the definition of 'GNUSOCIAL' or similar will take this change into consideration.
In some brief tests, this causes no problems.
In this state however, you would need to modify DB_DataObject to have a static declaration of staticget (and probably pkeyGet). The next commit will change the staticGet overload to a unique function name (like getKV for getKeyValue), which means we can properly call the function by PHP Strict Standards.
If set up, this hub will be used to subscribe to feeds that don't specify a hub of their own.
Assumes that the fallback hub will, in fact, handle polling and updates for any feed we throw at it!
Authentication may be specified for the fallback hub.
Example:
$config['feedsub']['fallback_hub'] = 'https://superfeedr.com/hubbub';
$config['feedsub']['hub_user'] = 'abcd';
$config['feedsub']['hub_pass'] = 'ckcmdkmckdmkcdk';
Also:
* Fix for WordPress-RSS-via-Superfeedr-Atom; if we have <author> info but no ID from a native ActivityStreams actor, don't freak out in the low-level processing code that checks for identity matches.
* enhanced messages for low-level FeedSub exceptions if they make it to outside display
SubMirror: redid add-mirror frontend to accept a feed URL, then pass that on to OStatus, instead of pulling from your subscriptions.
Profile: tweaked subscriberCount() so it doesn't subtract 1 for foreign profiles who aren't subscribed to themselves; instead excludes the self-subscription in the count query.
Memcached_DataObject: tweak to avoid extra error spew in the DB error raising
Work in progress: tweaking feedsub garbage collection so we can count other uses
Under MySQL, new tables will be created as InnoDB with UTF-8 (utf8/utf8_bin) same as core tables.
Existing plugin tables will have table engine and default charset/collation updated, and string columns will have charset updated, at checkschema time.
Switched from 'DESCRIBE' to INFORMATION_SCHEMA for pulling column information in order to get charset. A second hit to INFORMATION_SCHEMA is also needed to get table properties.
Indices were only being created at table creation time, which ain't so hot. Now also adding/dropping indices when they change.
Fixed up some schema defs in OStatus plugin that were a bit flaky, causing extra alter tables to be run.
TODO: Generalize this infrastructure a bit more up to base schema & pg schema classes.
- hub now defers subscription state updates until after verification, per spec
- hub now supports synchronous verification when requested (if async is not requested after)
- client now requests synchronous verification (it's a bit safer)
- cleanup on subscription logging/error responses
- actually udpate feedsub.last_update when we get a new PuSH update in
- move incoming PuSH processing to a queue handler to minimize time spent before POST return, as recommended by PuSH spec. When queues are disabled this'll still be handled immediately.
