From d41d34de83ed755e0a51e5638e121391f84b275f Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Tue, 11 Apr 2023 17:33:14 -0700
Subject: Support Nano firmware update

---
 .../org/traccar/protocol/Minifinder2Protocol.java  |  6 +-
 .../protocol/Minifinder2ProtocolEncoder.java       | 66 ++++++++++++++++++++++
 .../protocol/Minifinder2ProtocolEncoderTest.java   | 29 ++++++++++
 3 files changed, 100 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/org/traccar/protocol/Minifinder2ProtocolEncoder.java
 create mode 100644 src/test/java/org/traccar/protocol/Minifinder2ProtocolEncoderTest.java

diff --git a/src/main/java/org/traccar/protocol/Minifinder2Protocol.java b/src/main/java/org/traccar/protocol/Minifinder2Protocol.java
index 5499a274e..61a43d8db 100644
--- a/src/main/java/org/traccar/protocol/Minifinder2Protocol.java
+++ b/src/main/java/org/traccar/protocol/Minifinder2Protocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2019 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +20,7 @@ import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
 import org.traccar.config.Config;
+import org.traccar.model.Command;
 
 import java.nio.ByteOrder;
 
@@ -29,10 +30,13 @@ public class Minifinder2Protocol extends BaseProtocol {
 
     @Inject
     public Minifinder2Protocol(Config config) {
+        setSupportedDataCommands(
+                Command.TYPE_FIRMWARE_UPDATE);
         addServer(new TrackerServer(config, getName(), false) {
             @Override
             protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1200, 2, 2, 4, 0, true));
+                pipeline.addLast(new Minifinder2ProtocolEncoder(Minifinder2Protocol.this));
                 pipeline.addLast(new Minifinder2ProtocolDecoder(Minifinder2Protocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/Minifinder2ProtocolEncoder.java b/src/main/java/org/traccar/protocol/Minifinder2ProtocolEncoder.java
new file mode 100644
index 000000000..ce7de6dfc
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/Minifinder2ProtocolEncoder.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import org.traccar.BaseProtocolEncoder;
+import org.traccar.Protocol;
+import org.traccar.helper.Checksum;
+import org.traccar.model.Command;
+import org.traccar.model.Device;
+
+import java.nio.charset.StandardCharsets;
+
+public class Minifinder2ProtocolEncoder extends BaseProtocolEncoder {
+
+    public Minifinder2ProtocolEncoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private ByteBuf encodeContent(ByteBuf content) {
+
+        ByteBuf buf = Unpooled.buffer();
+
+        buf.writeByte(0xAB); // header
+        buf.writeByte(0x00); // properties
+        buf.writeShortLE(content.readableBytes());
+        buf.writeShortLE(Checksum.crc16(Checksum.CRC16_XMODEM, content.nioBuffer()));
+        buf.writeShortLE(1); // index
+        buf.writeBytes(content);
+
+        return buf;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+
+        Device device = getCacheManager().getObject(Device.class, command.getDeviceId());
+        if ("Nano".equalsIgnoreCase(device.getModel())) {
+            ByteBuf content = Unpooled.buffer();
+            if (command.getType().equals(Command.TYPE_FIRMWARE_UPDATE)) {
+                String url = command.getString(Command.KEY_DATA);
+                content.writeByte(1 + url.length());
+                content.writeByte(0x30); // type
+                content.writeCharSequence(url, StandardCharsets.US_ASCII);
+                return encodeContent(content);
+            }
+        }
+
+        return null;
+    }
+
+}
diff --git a/src/test/java/org/traccar/protocol/Minifinder2ProtocolEncoderTest.java b/src/test/java/org/traccar/protocol/Minifinder2ProtocolEncoderTest.java
new file mode 100644
index 000000000..a3477bfe8
--- /dev/null
+++ b/src/test/java/org/traccar/protocol/Minifinder2ProtocolEncoderTest.java
@@ -0,0 +1,29 @@
+package org.traccar.protocol;
+
+import org.junit.jupiter.api.Test;
+import org.traccar.ProtocolTest;
+import org.traccar.model.Command;
+import org.traccar.model.Device;
+
+import static org.mockito.Mockito.when;
+
+public class Minifinder2ProtocolEncoderTest extends ProtocolTest {
+
+    @Test
+    public void testEncodeNano() throws Exception {
+
+        var encoder = inject(new Minifinder2ProtocolEncoder(null));
+
+        var device = encoder.getCacheManager().getObject(Device.class, 1);
+        when(device.getModel()).thenReturn("Nano");
+
+        Command command = new Command();
+        command.setDeviceId(1);
+        command.setType(Command.TYPE_FIRMWARE_UPDATE);
+        command.set(Command.KEY_DATA, "https://example.com");
+
+        verifyCommand(encoder, command, binary("ab00150018750100143068747470733a2f2f6578616d706c652e636f6d"));
+
+    }
+
+}
-- 
cgit v1.2.3