server: merge xmpp

1 files changed, 36 insertions, 0 deletions

diff --git a/juick-server/src/main/java/com/juick/xmpp/s2s/util/DialbackUtils.java b/juick-server/src/main/java/com/juick/xmpp/s2s/util/DialbackUtils.java
new file mode 100644
index 000000000..a7646deb4
--- /dev/null
+++ b/juick-server/src/main/java/com/juick/xmpp/s2s/util/DialbackUtils.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * 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 com.juick.xmpp.s2s.util;
+
+import org.apache.commons.codec.digest.DigestUtils;
+import org.apache.commons.codec.digest.HmacUtils;
+import rocks.xmpp.addr.Jid;
+
+/**
+ * Created by vitalyster on 05.12.2016.
+ */
+public class DialbackUtils {
+    private DialbackUtils() {
+        throw new IllegalStateException();
+    }
+
+    public static String generateDialbackKey(String secret, Jid to, Jid from, String id) {
+        return HmacUtils.hmacSha256Hex(DigestUtils.sha256(secret),
+                (to.toEscapedString() + " " + from.toEscapedString() + " " + id).getBytes());
+    }
+}