- Instead of taking a WhatsApp message and sending an XMPP one directly, we now
generate an XMPP-MESSAGE object, and have functions to deliver said object
and make said object from a WhatsApp message.
- This paves the way to storing said XMPP-MESSAGEs in a database, so we can
actually do message history / MAM. Yay!
- 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 bridge should now support XEP-0115 Entity Capabilities, which actually
brings us into compliance with XEP-0085 Chat State Notifications (there were
clients, like Miranda NG, that wouldn't send to us without us actually doing
this XEP and advertising support in disco#info).
- We now handle the :disconnect message from whatscl, which lets us properly
deal with the connection being removed from the app or replaced with another
session. (Before, this would drop the connection, it'd loop and retry, and
then hit a status code error on login; this way is slightly cleaner and also
prevents the bridge getting into a war with another bridge.)
- The :ws-open whatscl event never existed. The bridge was doing just fine
not executing its handler, so it's just been removed. Future work might
improve the amount of spam sent to the user about the bridge state.
- Using tazjin's buildLisp.nix (you need the TVL Monorepo installed
as <depot>), we have a derivation for whatsxmpp and its million
dependencies.
- The derivation currently just assumes whatscl is in ../whatscl,
but we'll fix that eventually.
- Also there are tons of buildLisp derivations in here, and even
two instances where we had to vendor stuff in order to get it to
work with nix (usually because it had some data file).
- But yay, we can build via docker and it's not utter trash!
