Neil Alexander 38bed30b41
Restrict username length properly (#2676)
This fixes #2674 by fixing the username check to comply with the [spec appendices](https://spec.matrix.org/v1.3/appendices/#user-identifiers):

> The length of a user ID, including the @ sigil and the domain, MUST NOT exceed 255 characters.
2022-08-26 09:56:41 +01:00
..
2021-09-08 17:31:03 +01:00

This component roughly corresponds to "Client Room Send" and "Client Sync" on the WIRING diagram. This component produces multiple binaries.

Internals

  • HTTP routing is done using gorilla/mux and the routing paths are in the routing package.

Writers

  • Each HTTP "write operation" (/createRoom, /rooms/$room_id/send/$type, etc) is contained entirely to a single file in the writers package.
  • This file contains the request and response struct definitions, as well as a Validate() bool function to validate incoming requests.
  • The entry point for each write operation is a stand-alone function as this makes testing easier. All dependencies should be injected into this function, including server keys/name, etc.