- Groupchats now support XEP-0313 Message Archive Management (MAM)!
- This uses the history stored in the sqlite database, as implemented in the
previous commits.
- The QUERY-ARCHIVE megafunction builds up a SQL query to get stuff out of the
database, in accordance with provided MAM + RSM parameters.
- Notably, various hacks are in here that need to be fixed.
- IQ 'set's are now processed, which means we needed to add a stub impl of
Schrödinger's Chat so people don't drop out of MUCs all of a sudden.
(Well, it just responds to every ping indiscriminately...)
- Oh also the new presence subscription stuff from earlier is borked.
- This commit contains initial support for uploading and sending images natively
-- i.e. a WhatsApp image upload, instead of sending through a bare link.
- All images supported by the OPTICL library are supported; this is because WA
needs us to generate a jpeg thumbnail for the image (which can probably be
made smaller)
- Importantly, this functionality is currently a trivial DoS vector: simply send
a large file (or an infinite file, like time.gif) and it ALL gets downloaded
and buffered into RAM...!
- At least this is limited to users who have actually registered with the
bridge.
- Failing to send the image in any way results in an XMPP error getting reported
back to the sender.
- Also, the initial registration QR code upload thing now happens in another
thread.
- The child nodes of a given node can include both text nodes and
actual XML element nodes. Trying to pass a text node to something
like DOM:TAG-NAME signals an error condition.
- To avoid this, use DOM:ELEMENT-P and the CHILD-ELEMENTS helper
function to filter lists of nodes down to elements where elements
are expected.
