Add initial proof of concept for http server

src/main/java/org/asamk/signal/commands/Commands.java

@@ -16,6 +16,7 @@ public class Commands {
         addCommand(new DeleteLocalAccountDataCommand());
         addCommand(new FinishLinkCommand());
         addCommand(new GetUserStatusCommand());
+        addCommand(new HttpServerCommand());
         addCommand(new JoinGroupCommand());
         addCommand(new JsonRpcDispatcherCommand());
         addCommand(new LinkCommand());

src/main/java/org/asamk/signal/commands/HttpServerCommand.java

@@ -0,0 +1,40 @@
+package org.asamk.signal.commands;
+
+import net.sourceforge.argparse4j.inf.Namespace;
+import net.sourceforge.argparse4j.inf.Subparser;
+
+import org.asamk.signal.commands.exceptions.CommandException;
+import org.asamk.signal.http.HttpServerHandler;
+import org.asamk.signal.manager.MultiAccountManager;
+import org.asamk.signal.output.OutputWriter;
+
+public class HttpServerCommand implements MultiLocalCommand {
+
+    @Override
+    public String getName() {
+        return "http";
+    }
+
+    @Override
+    public void attachToSubparser(final Subparser subparser) {
+        subparser.help("Takes commands via an http connection");
+        subparser.addArgument("--port")
+                .help("The port on which to open the HTTP service")
+                .type(Integer.class)
+                .setDefault(8080);
+    }
+
+    @Override
+    public void handleCommand(
+            final Namespace ns,
+            final MultiAccountManager m,
+            final OutputWriter outputWriter
+    ) throws CommandException {
+
+        final var port = ns.getInt("port");
+
+        final var handler = new HttpServerHandler();
+        handler.init(port, m);
+
+    }
+}

src/main/java/org/asamk/signal/commands/JsonRpcNamespace.java

@@ -10,7 +10,7 @@ import java.util.Map;
 /**
  * Namespace implementation, that has plural handling for list arguments and converts camel case keys to dashed strings
  */
-final class JsonRpcNamespace extends Namespace {
+final public class JsonRpcNamespace extends Namespace {
 
     public JsonRpcNamespace(final Map<String, Object> attrs) {
         super(attrs);