Changes from upstream

Hyper now uses rustls (mainly because it is easier than dealing with dynamically linked openssl)
Allows a custom listen address rather than only 172.0.0.1
- More specifically, the environment variable PORT was replaced with HOST in the form of IP:PORT
+polyfrost was added to the end of the version string
Added the dockerfile that polyfrost uses (could be improved, but it works for now)

Ursa Minor

The small bear - A rather primitive API proxy for the Hypixel public API.

Server Usage

Configuration

The server is configured via environment variables. See .env.example for explanations what each variable does. Environment variables in .env get automatically loaded on startup. Rules are resolved relative to the working directory.

Missing features

Rate-limits on users (using redis EXPIRE)
Reporting diagnostics (aggregated call statistics)

Client Usage

Requesting a resource

You will need to send a GET request to /v1/hypixel/<rulename>/<ruleArg1>/<ruleArg2>

Authentication

Clients may need to provide authentication in form of an associated minecraft account for some routes (unless URSA_ALLOW_ANONYMOUS is set). Said authentication may come in two forms:

The client first sends a joinServer request to Mojangs session server:

var serverId = UUID.randomUUID().toString();
var session = Minecraft.getMinecraft().getSession();
var name = session.getUsername();
request.header("x-ursa-username", name).header("x-ursa-serverid", serverId);
Minecraft.getMinecraft().sessionService.joinServer(session.getProfile(), session.getToken(), serverId);

Then the headers x-ursa-username and x-ursa-serverid need to be set on the next request to the ursa server. The server will then set the x-ursa-token header in the response, which can be used for 1 hour, which can be used instead of the joinServer authentication:

// ... Do a joinServer request
var tokenFromLastRequest = response.getHeader("x-ursa-token");
// In the next request
request.header("x-ursa-token", tokenFromLastRequest);

Rule format

{
  // The path that users access the rule on. Will be prefixed with /v1/hypixel/.
  "http-path": "player",
  // The path that is being proxied
  "hypixel-path": "https://api.hypixel.net/player",
  // A list of query arguments that the Hypixel API endpoint needs. Users provide these in the same order they occur
  // in here as subpaths. In this case a full request would be https://example.com/v1/hypixel/player/<uuid>
  // This is to make caching by just path possible.
  "query-arguments": [
    "uuid"
  ]
}

Polyfrost/ursa-minor