Created the CheckVersionRoute.java

src/main/java/de/gnmyt/mcdash/routes/CheckVersionRoute.java

@@ -0,0 +1,31 @@
+package de.gnmyt.mcdash.routes;
+
+import de.gnmyt.mcdash.api.ServerVersionManager;
+import de.gnmyt.mcdash.handler.DefaultHandler;
+import de.gnmyt.mcdash.http.Request;
+import de.gnmyt.mcdash.http.ResponseController;
+
+public class CheckVersionRoute extends DefaultHandler {
+
+    private final static ServerVersionManager versionManager = new ServerVersionManager();
+
+    @Override
+    public String path() {
+        return "check_version";
+    }
+
+    @Override
+    public void get(Request request, ResponseController response) throws Exception {
+        if (!isStringInQuery(request, response, "software") || !isStringInQuery(request, response, "version")) return;
+
+        String software = getStringFromQuery(request, "software");
+        String version = getStringFromQuery(request, "version");
+
+        if (!versionManager.getInstallers().containsKey(software)) {
+            response.json().add("valid", false).finish();
+            return;
+        }
+
+        response.json().add("valid", versionManager.getInstallers().get(software).isValidVersion(software, version)).finish();
+    }
+}