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/*
* Copyright 2015 - 2020 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;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.handler.codec.string.StringEncoder;
import org.traccar.helper.DataConverter;
import org.traccar.model.Command;
import java.net.SocketAddress;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
public abstract class BaseProtocol implements Protocol {
private final String name;
private final Set<String> supportedDataCommands = new HashSet<>();
private final Set<String> supportedTextCommands = new HashSet<>();
private final List<TrackerServer> serverList = new LinkedList<>();
private StringProtocolEncoder textCommandEncoder = null;
public static String nameFromClass(Class<?> clazz) {
String className = clazz.getSimpleName();
return className.substring(0, className.length() - 8).toLowerCase();
}
public BaseProtocol() {
name = nameFromClass(getClass());
}
@Override
public String getName() {
return name;
}
protected void addServer(TrackerServer server) {
serverList.add(server);
}
@Override
public Collection<TrackerServer> getServerList() {
return serverList;
}
public void setSupportedDataCommands(String... commands) {
supportedDataCommands.addAll(Arrays.asList(commands));
}
public void setSupportedTextCommands(String... commands) {
supportedTextCommands.addAll(Arrays.asList(commands));
}
@Override
public Collection<String> getSupportedDataCommands() {
Set<String> commands = new HashSet<>(supportedDataCommands);
commands.add(Command.TYPE_CUSTOM);
return commands;
}
@Override
public Collection<String> getSupportedTextCommands() {
Set<String> commands = new HashSet<>(supportedTextCommands);
commands.add(Command.TYPE_CUSTOM);
return commands;
}
@Override
public void sendDataCommand(Channel channel, SocketAddress remoteAddress, Command command) {
if (supportedDataCommands.contains(command.getType())) {
channel.writeAndFlush(new NetworkMessage(command, remoteAddress));
} else if (command.getType().equals(Command.TYPE_CUSTOM)) {
String data = command.getString(Command.KEY_DATA);
if (BasePipelineFactory.getHandler(channel.pipeline(), StringEncoder.class) != null) {
channel.writeAndFlush(new NetworkMessage(data, remoteAddress));
} else {
ByteBuf buf = Unpooled.wrappedBuffer(DataConverter.parseHex(data));
channel.writeAndFlush(new NetworkMessage(buf, remoteAddress));
}
} else {
throw new RuntimeException("Command " + command.getType() + " is not supported in protocol " + getName());
}
}
public void setTextCommandEncoder(StringProtocolEncoder textCommandEncoder) {
this.textCommandEncoder = textCommandEncoder;
}
@Override
public void sendTextCommand(String destAddress, Command command) throws Exception {
if (Context.getSmsManager() != null) {
if (command.getType().equals(Command.TYPE_CUSTOM)) {
Context.getSmsManager().sendMessageSync(destAddress, command.getString(Command.KEY_DATA), true);
} else if (supportedTextCommands.contains(command.getType()) && textCommandEncoder != null) {
String encodedCommand = (String) textCommandEncoder.encodeCommand(command);
if (encodedCommand != null) {
Context.getSmsManager().sendMessageSync(destAddress, encodedCommand, true);
} else {
throw new RuntimeException("Failed to encode command");
}
} else {
throw new RuntimeException(
"Command " + command.getType() + " is not supported in protocol " + getName());
}
} else {
throw new RuntimeException("SMS is not enabled");
}
}
}
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