Add version in jar

- Cli argument
- In HTTP client
- /version endpoint

src/main/java/io/kamax/mxisd/http/undertow/handler/status/StatusHandler.java

@@ -26,7 +26,7 @@ import io.undertow.server.HttpServerExchange;
 
 public class StatusHandler extends BasicHttpHandler {
 
-    public static final String Path = "/_matrix/identity/status";
+    public static final String Path = "/status";
 
     @Override
     public void handleRequest(HttpServerExchange exchange) {

src/main/java/io/kamax/mxisd/http/undertow/handler/status/VersionHandler.java

@@ -0,0 +1,48 @@
+/*
+ * mxisd - Matrix Identity Server Daemon
+ * Copyright (C) 2019 Kamax Sarl
+ *
+ * https://www.kamax.io/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package io.kamax.mxisd.http.undertow.handler.status;
+
+import com.google.gson.JsonObject;
+import io.kamax.matrix.json.GsonUtil;
+import io.kamax.mxisd.Mxisd;
+import io.kamax.mxisd.http.undertow.handler.BasicHttpHandler;
+import io.undertow.server.HttpServerExchange;
+
+public class VersionHandler extends BasicHttpHandler {
+
+    public static final String Path = "/version";
+
+    private final String body;
+
+    public VersionHandler() {
+        JsonObject server = new JsonObject();
+        server.addProperty("name", "mxisd");
+        server.addProperty("version", Mxisd.Version);
+
+        body = GsonUtil.getPrettyForLog(GsonUtil.makeObj("server", server));
+    }
+
+    @Override
+    public void handleRequest(HttpServerExchange exchange) {
+        respondJson(exchange, body);
+    }
+
+}