Send remote delete (#593)

* Implementation of remoteDelete command, iteration 1

* Implementation of remoteDelete command, iteration 2

* Implementation of remoteDelete command, iteration 3

* Implementation of remoteDelete command, iteration 4

* Implementation of remoteDelete command, iteration 5

* Implementation of remoteDelete command, iteration 6

* Renaming dbus methods remoteGroupDelete -> sendGroupRemoteDeleteMessage, remoteDelete -> sendRemoteDeleteMessage

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

@@ -0,0 +1,82 @@
+package org.asamk.signal.commands;
+
+import net.sourceforge.argparse4j.inf.Namespace;
+import net.sourceforge.argparse4j.inf.Subparser;
+
+import org.asamk.Signal;
+import org.asamk.signal.PlainTextWriterImpl;
+import org.asamk.signal.commands.exceptions.CommandException;
+import org.asamk.signal.commands.exceptions.UnexpectedErrorException;
+import org.asamk.signal.commands.exceptions.UserErrorException;
+import org.asamk.signal.manager.groups.GroupIdFormatException;
+import org.asamk.signal.util.Util;
+import org.freedesktop.dbus.errors.UnknownObject;
+import org.freedesktop.dbus.exceptions.DBusExecutionException;
+
+import java.util.List;
+
+import static org.asamk.signal.util.ErrorUtils.handleAssertionError;
+
+public class RemoteDeleteCommand implements DbusCommand {
+
+    @Override
+    public void attachToSubparser(final Subparser subparser) {
+        subparser.help("Remotely delete a previously sent message.");
+        subparser.addArgument("-t", "--target-timestamp")
+                .required(true)
+                .type(long.class)
+                .help("Specify the timestamp of the message to delete.");
+        subparser.addArgument("-g", "--group")
+                .help("Specify the recipient group ID.");
+        subparser.addArgument("recipient")
+                .help("Specify the recipients' phone number.").nargs("*");
+    }
+
+    @Override
+    public void handleCommand(final Namespace ns, final Signal signal) throws CommandException {
+        final List<String> recipients = ns.getList("recipient");
+        final var groupIdString = ns.getString("group");
+
+        final var noRecipients = recipients == null || recipients.isEmpty();
+        if (noRecipients && groupIdString == null) {
+            throw new UserErrorException("No recipients given");
+        }
+        if (!noRecipients && groupIdString != null) {
+            throw new UserErrorException("You cannot specify recipients by phone number and groups at the same time");
+        }
+
+        final long targetTimestamp = ns.getLong("target_timestamp");
+
+        final var writer = new PlainTextWriterImpl(System.out);
+
+        byte[] groupId = null;
+        if (groupIdString != null) {
+            try {
+                groupId = Util.decodeGroupId(groupIdString).serialize();
+            } catch (GroupIdFormatException e) {
+                throw new UserErrorException("Invalid group id: " + e.getMessage());
+            }
+        }
+
+        try {
+            long timestamp;
+            if (groupId != null) {
+                timestamp = signal.sendGroupRemoteDeleteMessage(targetTimestamp, groupId);
+            } else {
+                timestamp = signal.sendRemoteDeleteMessage(targetTimestamp, recipients);
+            }
+            writer.println("{}", timestamp);
+        } catch (AssertionError e) {
+            handleAssertionError(e);
+            throw e;
+        } catch (UnknownObject e) {
+            throw new UserErrorException("Failed to find dbus object, maybe missing the -u flag: " + e.getMessage());
+        } catch (Signal.Error.InvalidNumber e) {
+            throw new UserErrorException("Invalid number: " + e.getMessage());
+        } catch (Signal.Error.GroupNotFound e) {
+            throw new UserErrorException("Failed to send to group: " + e.getMessage());
+        } catch (DBusExecutionException e) {
+            throw new UnexpectedErrorException("Failed to send message: " + e.getMessage());
+        }
+    }
+}