mirror of
https://github.com/oxen-io/session-android.git
synced 2024-11-29 21:15:22 +00:00
0ace469d74
1) In addition to the Recipient interface, there is now RecipientDevice. A Recipient can have multiple corresponding RecipientDevices. All addressing is done to a Recipient, but crypto sessions and transport delivery are done to RecipientDevice. 2) The Push transport handles the discovery and session setup of additional Recipient devices. 3) Some internal rejiggering of Groups.
28 lines
698 B
Java
28 lines
698 B
Java
package org.thoughtcrime.securesms.util;
|
|
|
|
import org.whispersystems.textsecure.util.Hex;
|
|
|
|
import java.io.IOException;
|
|
|
|
public class GroupUtil {
|
|
|
|
private static final String ENCODED_GROUP_PREFIX = "__textsecure_group__!";
|
|
|
|
public static String getEncodedId(byte[] groupId) {
|
|
return ENCODED_GROUP_PREFIX + Hex.toStringCondensed(groupId);
|
|
}
|
|
|
|
public static byte[] getDecodedId(String groupId) throws IOException {
|
|
if (!isEncodedGroup(groupId)) {
|
|
throw new IOException("Invalid encoding");
|
|
}
|
|
|
|
return Hex.fromStringCondensed(groupId.split("!", 2)[1]);
|
|
}
|
|
|
|
public static boolean isEncodedGroup(String groupId) {
|
|
return groupId.startsWith(ENCODED_GROUP_PREFIX);
|
|
}
|
|
|
|
}
|