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Kick handling

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SessionHero01 2024-10-21 14:36:58 +11:00
parent afb7cc1485
commit f794458cba
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3 changed files with 24 additions and 18 deletions
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2
libsession-util/src/main/java/network/loki/messenger/libsession_util/util/Sodium.kt
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@ -1,11 +1,9 @@
package network.loki.messenger.libsession_util.util package network.loki.messenger.libsession_util.util
import java.util.regex.Pattern
object Sodium { object Sodium {
const val KICKED_DOMAIN = "SessionGroupKickedMessage" const val KICKED_DOMAIN = "SessionGroupKickedMessage"
val KICKED_REGEX: Pattern = Pattern.compile("^(05[a-zA-Z0-9]{64})(\\d+)$")
init { init {
System.loadLibrary("session_util") System.loadLibrary("session_util")

3
libsession/src/main/java/org/session/libsession/messaging/groups/RemoveGroupMemberHandler.kt
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@ -216,7 +216,8 @@ class RemoveGroupMemberHandler @Inject constructor(
data = Base64.encodeBytes( data = Base64.encodeBytes(
Sodium.encryptForMultipleSimple( Sodium.encryptForMultipleSimple(
messages = Array(pendingRemovals.size) { messages = Array(pendingRemovals.size) {
"${pendingRemovals[it].sessionId}${keys.currentGeneration()}".encodeToByteArray() AccountId(pendingRemovals[it].sessionId).pubKeyBytes
.plus(keys.currentGeneration().toString().toByteArray())
}, },
recipients = Array(pendingRemovals.size) { recipients = Array(pendingRemovals.size) {
AccountId(pendingRemovals[it].sessionId).pubKeyBytes AccountId(pendingRemovals[it].sessionId).pubKeyBytes

27
libsession/src/main/java/org/session/libsession/messaging/sending_receiving/pollers/ClosedGroupPoller.kt
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@ -29,6 +29,7 @@ import org.session.libsession.utilities.getClosedGroup
import org.session.libsignal.database.LokiAPIDatabaseProtocol import org.session.libsignal.database.LokiAPIDatabaseProtocol
import org.session.libsignal.exceptions.NonRetryableException import org.session.libsignal.exceptions.NonRetryableException
import org.session.libsignal.utilities.AccountId import org.session.libsignal.utilities.AccountId
import org.session.libsignal.utilities.IdPrefix
import org.session.libsignal.utilities.Log import org.session.libsignal.utilities.Log
import org.session.libsignal.utilities.Namespace import org.session.libsignal.utilities.Namespace
import org.session.libsignal.utilities.Snode import org.session.libsignal.utilities.Snode
@ -299,24 +300,30 @@ class ClosedGroupPoller(
) )
if (decoded != null) { if (decoded != null) {
val message = decoded.decodeToString() // The message should be in the format of "<sessionIdPubKeyBinary><messageGenerationASCII>",
val matcher = Sodium.KICKED_REGEX.matcher(message) // where the pub key is 32 bytes, so we need to have at least 33 bytes of data
if (matcher.matches()) { if (decoded.size < 33) {
val sessionId = matcher.group(1) Log.w(TAG, "Received an invalid kicked message, expecting at least 33 bytes, got ${decoded.size}")
val messageGeneration = matcher.group(2)!!.toInt() return@forEach
}
val sessionId = AccountId(IdPrefix.STANDARD, decoded.copyOfRange(0, 32))
val messageGeneration = decoded.copyOfRange(32, decoded.size).decodeToString().toIntOrNull()
if (messageGeneration == null) {
Log.w(TAG, "Received an invalid kicked message: missing message generation")
return@forEach
}
val currentKeysGeneration = configFactoryProtocol.withGroupConfigs(closedGroupSessionId) { val currentKeysGeneration = configFactoryProtocol.withGroupConfigs(closedGroupSessionId) {
it.groupKeys.currentGeneration() it.groupKeys.currentGeneration()
} }
val isForMe = sessionId == storage.getUserPublicKey() val isForMe = sessionId.hexString == storage.getUserPublicKey()
Log.d(TAG, "Received kicked message, for us? ${sessionId == storage.getUserPublicKey()}, message key generation = $messageGeneration, our key generation = $currentKeysGeneration") Log.d(TAG, "Received kicked message, for us? ${isForMe}, message key generation = $messageGeneration, our key generation = $currentKeysGeneration")
if (isForMe && messageGeneration >= currentKeysGeneration) { if (isForMe && messageGeneration >= currentKeysGeneration) {
groupManagerV2.handleKicked(closedGroupSessionId) groupManagerV2.handleKicked(closedGroupSessionId)
} }
} else {
Log.w(TAG, "Received an invalid kicked message")
}
} }
} }
} }