Commit graph

3 commits

Author SHA1 Message Date
eta 83d172f899 Upload and send images natively (!); don't block on QR code
- 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.
2020-09-01 20:01:02 +01:00
eta e4e9aa0ec1 Don't break on nodes with whitespace/text in between
- 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.
2020-07-31 15:45:07 +01:00
eta 0962c5d488 *: move 750 LoC from 'stuff.lisp' into other sensibly-named files 2020-06-25 16:56:36 +01:00