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Implement join group via invitation link

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AsamK 2020-12-21 20:03:19 +01:00
parent 9912da9546
commit 445e8592c4
9 changed files with 239 additions and 56 deletions
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84
src/main/java/org/asamk/signal/commands/JoinGroupCommand.java Normal file
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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.manager.GroupInviteLinkUrl;
import org.asamk.signal.manager.Manager;
import org.freedesktop.dbus.exceptions.DBusExecutionException;
import org.whispersystems.libsignal.util.Pair;
import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
import org.whispersystems.signalservice.api.messages.SendMessageResult;
import org.whispersystems.signalservice.internal.push.exceptions.GroupPatchNotAcceptedException;
import org.whispersystems.util.Base64;
import java.io.IOException;
import java.util.List;
import static org.asamk.signal.util.ErrorUtils.handleAssertionError;
import static org.asamk.signal.util.ErrorUtils.handleIOException;
import static org.asamk.signal.util.ErrorUtils.handleTimestampAndSendMessageResults;
public class JoinGroupCommand implements LocalCommand {
@Override
public void attachToSubparser(final Subparser subparser) {
subparser.addArgument("--uri").required(true).help("Specify the uri with the group invitation link.");
}
@Override
public int handleCommand(final Namespace ns, final Manager m) {
if (!m.isRegistered()) {
System.err.println("User is not registered.");
return 1;
}
final GroupInviteLinkUrl linkUrl;
String uri = ns.getString("uri");
try {
linkUrl = GroupInviteLinkUrl.fromUri(uri);
} catch (GroupInviteLinkUrl.InvalidGroupLinkException e) {
System.err.println("Group link is invalid: " + e.getMessage());
return 2;
} catch (GroupInviteLinkUrl.UnknownGroupLinkVersionException e) {
System.err.println("Group link was created with an incompatible version: " + e.getMessage());
return 2;
}
if (linkUrl == null) {
System.err.println("Link is not a signal group invitation link");
return 2;
}
try {
final Pair<byte[], List<SendMessageResult>> results = m.joinGroup(linkUrl);
byte[] newGroupId = results.first();
if (!m.getGroup(newGroupId).isMember(m.getSelfAddress())) {
System.out.println("Requested to join group \"" + Base64.encodeBytes(newGroupId) + "\"");
} else {
System.out.println("Joined group \"" + Base64.encodeBytes(newGroupId) + "\"");
}
return handleTimestampAndSendMessageResults(0, results.second());
} catch (AssertionError e) {
handleAssertionError(e);
return 1;
} catch (GroupPatchNotAcceptedException e) {
System.err.println("Failed to join group, maybe already a member");
return 1;
} catch (IOException e) {
e.printStackTrace();
handleIOException(e);
return 1;
} catch (Signal.Error.AttachmentInvalid e) {
System.err.println("Failed to add avatar attachment for group\": " + e.getMessage());
return 1;
} catch (DBusExecutionException e) {
System.err.println("Failed to send message: " + e.getMessage());
return 1;
} catch (GroupLinkNotActiveException e) {
System.err.println("Group link is not valid: " + e.getMessage());
return 2;
}
}
}