Add simple auth (#186)

auth/server.go

@@ -0,0 +1,43 @@
+package auth
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/go-chi/chi"
+
+	"github.com/SecurityBrewery/catalyst/database"
+)
+
+func Server(config *Config, catalystDatabase *database.Database, jar *Jar) *chi.Mux {
+	server := chi.NewRouter()
+
+	server.Get("/config", hasOIDC(config))
+
+	if config.OIDCAuthEnable {
+		server.Get("/callback", callback(config, jar))
+		server.Get("/oidclogin", redirectToOIDCLogin(config, jar))
+	}
+	if config.SimpleAuthEnable {
+		server.Post("/login", login(catalystDatabase, jar))
+	}
+	server.Post("/logout", logout())
+
+	return server
+}
+
+func hasOIDC(config *Config) func(writer http.ResponseWriter, request *http.Request) {
+	return func(writer http.ResponseWriter, request *http.Request) {
+		b, err := json.Marshal(map[string]any{
+			"simple": config.SimpleAuthEnable,
+			"oidc":   config.OIDCAuthEnable,
+		})
+		if err != nil {
+			writer.WriteHeader(http.StatusInternalServerError)
+
+			return
+		}
+
+		_, _ = writer.Write(b)
+	}
+}