There are a lot of components that make up the meek transport. There is the client and server, and then there is the middle part that runs on App Engine, and the browser extension that ensures we are speaking HTTPS the right way. I'm working towards deploying the transport, and to that end I'd like to encourage code review. This is your chance to get in on the ground floor of a new transport!
The purpose of review is to find bugs. Yawning found one already in the server component (the server didn't put a time limit on handling requests). Even comments such as "it's not clear what this part of the code is doing" are useful, because those parts of the code can hide bugs.
The following are, in my opinion, the files most in need of review. Most of them are under 350 lines, so they shouldn't be too hard to get into. The languages used are JavaScript for the browser extensions and Go for everything else. The overall information flow is tor ↔ meek-client ↔ extension ↔ reflector ↔ meek-server ↔ tor Also look at https://trac.torproject.org/projects/tor/wiki/doc/meek#Overview to get a feel for precisely what packets get sent.
Client plugin (meek-client) https://gitweb.torproject.org/pluggable-transports/meek.git/blob/HEAD:/meek-... https://gitweb.torproject.org/pluggable-transports/meek.git/blob/HEAD:/meek-...
Server plugin (meek-server) https://gitweb.torproject.org/pluggable-transports/meek.git/blob/HEAD:/meek-...
Reflector (the part that runs on App Engine) https://gitweb.torproject.org/pluggable-transports/meek.git/blob/HEAD:/appen...
Firefox extension (#11183) https://gitweb.torproject.org/pluggable-transports/meek.git/blob/HEAD:/firef... https://gitweb.torproject.org/user/dcf/tor-browser-bundle.git/blob/refs/head...
Chrome extension (#11393) (Not currently part of the bundle, but you can run it manually.) https://gitweb.torproject.org/pluggable-transports/meek.git/blob/HEAD:/chrom... https://gitweb.torproject.org/pluggable-transports/meek.git/blob/HEAD:/chrom...
Browser bundle packaging (#10935) https://gitweb.torproject.org/user/dcf/tor-browser-bundle.git/commitdiff/tbb...
David Fifield