Restrict blocking of group to master device

lib/src/main/java/org/asamk/signal/manager/Manager.java

@@ -184,7 +184,7 @@ public interface Manager extends Closeable {
 
     void setGroupBlocked(
             GroupId groupId, boolean blocked
-    ) throws GroupNotFoundException, IOException;
+    ) throws GroupNotFoundException, IOException, NotMasterDeviceException;
 
     void setExpirationTimer(
             RecipientIdentifier.Single recipient, int messageExpirationTimer

lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java

@@ -714,7 +714,10 @@ public class ManagerImpl implements Manager {
     @Override
     public void setGroupBlocked(
             final GroupId groupId, final boolean blocked
-    ) throws GroupNotFoundException, IOException {
+    ) throws GroupNotFoundException, IOException, NotMasterDeviceException {
+        if (!account.isMasterDevice()) {
+            throw new NotMasterDeviceException();
+        }
         groupHelper.setGroupBlocked(groupId, blocked);
         // TODO cycle our profile key
         syncHelper.sendBlockedList();

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

@@ -52,6 +52,8 @@ public class BlockCommand implements JsonRpcLocalCommand {
             for (var groupId : CommandUtil.getGroupIds(groupIdStrings)) {
                 try {
                     m.setGroupBlocked(groupId, true);
+                } catch (NotMasterDeviceException e) {
+                    throw new UserErrorException("This command doesn't work on linked devices.");
                 } catch (GroupNotFoundException e) {
                     logger.warn("Group not found {}: {}", groupId.toBase64(), e.getMessage());
                 } catch (IOException e) {

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

@@ -51,6 +51,8 @@ public class UnblockCommand implements JsonRpcLocalCommand {
         for (var groupId : CommandUtil.getGroupIds(groupIdStrings)) {
             try {
                 m.setGroupBlocked(groupId, false);
+            } catch (NotMasterDeviceException e) {
+                throw new UserErrorException("This command doesn't work on linked devices.");
             } catch (GroupNotFoundException e) {
                 logger.warn("Unknown group id: {}", groupId);
             } catch (IOException e) {

src/main/java/org/asamk/signal/dbus/DbusSignalImpl.java

@@ -405,6 +405,8 @@ public class DbusSignalImpl implements Signal {
     public void setGroupBlocked(final byte[] groupId, final boolean blocked) {
         try {
             m.setGroupBlocked(getGroupId(groupId), blocked);
+        } catch (NotMasterDeviceException e) {
+            throw new Error.Failure("This command doesn't work on linked devices.");
         } catch (GroupNotFoundException e) {
             throw new Error.GroupNotFound(e.getMessage());
         } catch (IOException e) {
@@ -1060,6 +1062,8 @@ public class DbusSignalImpl implements Signal {
         private void setIsBlocked(final boolean isBlocked) {
             try {
                 m.setGroupBlocked(groupId, isBlocked);
+            } catch (NotMasterDeviceException e) {
+                throw new Error.Failure("This command doesn't work on linked devices.");
             } catch (GroupNotFoundException e) {
                 throw new Error.GroupNotFound(e.getMessage());
             } catch (IOException e) {