Envelope/Backend/Api/Routes.go

package Api

import (
	"log"
	"net/http"

	"git.tovijaeschke.xyz/tovi/Envelope/Backend/Api/Auth"
	"git.tovijaeschke.xyz/tovi/Envelope/Backend/Api/Friends"
	"git.tovijaeschke.xyz/tovi/Envelope/Backend/Api/Messages"

	"github.com/gorilla/mux"
)

func loggingMiddleware(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		log.Printf(
			"%s %s, Content Length: %d",
			r.Method,
			r.RequestURI,
			r.ContentLength,
		)

		next.ServeHTTP(w, r)
	})
}

func authenticationMiddleware(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		var (
			err error
		)

		_, err = Auth.CheckCookie(r)

		if err != nil {
			http.Error(w, "Forbidden", http.StatusUnauthorized)
			return
		}

		next.ServeHTTP(w, r)
	})
}

func InitApiEndpoints(router *mux.Router) {
	var (
		api     *mux.Router
		authApi *mux.Router
	)

	log.Println("Initializing API routes...")

	api = router.PathPrefix("/api/v1/").Subrouter()
	api.Use(loggingMiddleware)

	// Define routes for authentication
	api.HandleFunc("/signup", Auth.Signup).Methods("POST")
	api.HandleFunc("/login", Auth.Login).Methods("POST")
	api.HandleFunc("/logout", Auth.Logout).Methods("GET")

	authApi = api.PathPrefix("/auth/").Subrouter()
	authApi.Use(authenticationMiddleware)

	// Define routes for friends and friend requests
	authApi.HandleFunc("/friends", Friends.EncryptedFriendList).Methods("GET")
	authApi.HandleFunc("/friend/{userID}", Friends.Friend).Methods("GET")
	authApi.HandleFunc("/friend/{userID}/request", Friends.FriendRequest).Methods("POST")

	// Define routes for messages
	authApi.HandleFunc("/messages/{threadKey}", Messages.MessageThread).Methods("GET")
}