Example of http -> https redirect in weblit

secure-redirect.lua

require('weblit-app')

-- Listen on port 80 without encryption
.bind {host = "0.0.0.0", port = 80 }

-- Listen on port 443 with encryption
.bind {host = "0.0.0.0", port = 443, tls = {
  cert = module:load("cert.pem"),
  key = module:load("key.pem")
}}

-- Set an outer middleware for logging requests and responses
.use(require('weblit-logger'))

-- This adds missing headers, and tries to do automatic cleanup.
.use(require('weblit-auto-headers'))

.use(function (req, res, go)
  -- If the request is already secure, ignore this route.
  if req.socket.tls then return go() end
  -- Otherwise, redirect them to the same url, but https.
  res.code = 301
  res.headers.Location = "https://" .. req.headers.Host .. req.path
  res.body = "Redirecting to secure protocol...\n"
end)

.start()

Note that this requires coro-net at least at 3.1.0 for the req.socket.tls property to exist on secure connections.

https://lit.luvit.io/packages/creationix/coro-net/3.1.0