Fix null pointer regression

[signal-cli] / src / main / java / org / asamk / signal / commands / JsonRpcDispatcherCommand.java

diff --git a/src/main/java/org/asamk/signal/commands/JsonRpcDispatcherCommand.java b/src/main/java/org/asamk/signal/commands/JsonRpcDispatcherCommand.java
index 0f1343f922c07ac7e055c5f9c039f09f9cea0e32..5ce9daf46a399cc5829c5ed9a5462d8c4536969e 100644 (file)
--- a/src/main/java/org/asamk/signal/commands/JsonRpcDispatcherCommand.java
+++ b/src/main/java/org/asamk/signal/commands/JsonRpcDispatcherCommand.java
@@ -5,6 +5,7 @@ import net.sourceforge.argparse4j.inf.Namespace;
 import net.sourceforge.argparse4j.inf.Subparser;
 
 import org.asamk.signal.OutputType;
+import org.asamk.signal.Shutdown;
 import org.asamk.signal.commands.exceptions.CommandException;
 import org.asamk.signal.jsonrpc.SignalJsonRpcDispatcherHandler;
 import org.asamk.signal.manager.Manager;
@@ -15,7 +16,10 @@ import org.asamk.signal.util.IOUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.io.FileDescriptor;
+import java.io.FileInputStream;
 import java.io.InputStreamReader;
+import java.nio.channels.Channels;
 import java.util.List;
 import java.util.function.Supplier;
 
@@ -23,7 +27,7 @@ import static org.asamk.signal.util.CommandUtil.getReceiveConfig;
 
 public class JsonRpcDispatcherCommand implements LocalCommand, MultiLocalCommand {
 
-    private final static Logger logger = LoggerFactory.getLogger(JsonRpcDispatcherCommand.class);
+    private static final Logger logger = LoggerFactory.getLogger(JsonRpcDispatcherCommand.class);
 
     @Override
     public String getName() {
@@ -55,8 +59,11 @@ public class JsonRpcDispatcherCommand implements LocalCommand, MultiLocalCommand
 
     @Override
     public void handleCommand(
-            final Namespace ns, final Manager m, final OutputWriter outputWriter
+            final Namespace ns,
+            final Manager m,
+            final OutputWriter outputWriter
     ) throws CommandException {
+        Shutdown.installHandler();
         final var receiveMode = ns.<ReceiveMode>get("receive-mode");
         final var receiveConfig = getReceiveConfig(ns);
         m.setReceiveConfig(receiveConfig);
@@ -67,13 +74,18 @@ public class JsonRpcDispatcherCommand implements LocalCommand, MultiLocalCommand
         final var handler = new SignalJsonRpcDispatcherHandler(jsonOutputWriter,
                 lineSupplier,
                 receiveMode == ReceiveMode.MANUAL);
+        final var thread = Thread.currentThread();
+        Shutdown.registerShutdownListener(thread::interrupt);
         handler.handleConnection(m);
     }
 
     @Override
     public void handleCommand(
-            final Namespace ns, final MultiAccountManager c, final OutputWriter outputWriter
+            final Namespace ns,
+            final MultiAccountManager c,
+            final OutputWriter outputWriter
     ) throws CommandException {
+        Shutdown.installHandler();
         final var receiveMode = ns.<ReceiveMode>get("receive-mode");
         final var receiveConfig = getReceiveConfig(ns);
         c.getManagers().forEach(m -> m.setReceiveConfig(receiveConfig));
@@ -85,10 +97,14 @@ public class JsonRpcDispatcherCommand implements LocalCommand, MultiLocalCommand
         final var handler = new SignalJsonRpcDispatcherHandler(jsonOutputWriter,
                 lineSupplier,
                 receiveMode == ReceiveMode.MANUAL);
+        final var thread = Thread.currentThread();
+        Shutdown.registerShutdownListener(thread::interrupt);
         handler.handleConnection(c);
     }
 
     private static Supplier<String> getLineSupplier() {
-        return IOUtils.getLineSupplier(new InputStreamReader(System.in, IOUtils.getConsoleCharset()));
+        // Use FileChannel for stdin, because System.in is uninterruptible
+        final var stdInCh = Channels.newInputStream((new FileInputStream(FileDescriptor.in)).getChannel());
+        return IOUtils.getLineSupplier(new InputStreamReader(stdInCh, IOUtils.getConsoleCharset()));
     }
 }