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feat: share pending key pair between generate EC and add members

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This commit is contained in:
jubb 2021-02-12 14:16:06 +11:00
parent b6951f09b4
commit 2a50a09614
1 changed files with 10 additions and 22 deletions
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32
app/src/main/java/org/thoughtcrime/securesms/loki/protocol/ClosedGroupsProtocolV2.kt
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@ -3,6 +3,7 @@ package org.thoughtcrime.securesms.loki.protocol
import android.content.Context
import android.util.Log
import com.google.protobuf.ByteString
import kotlinx.coroutines.delay
import nl.komponents.kovenant.Promise
import nl.komponents.kovenant.deferred
import nl.komponents.kovenant.task
@ -44,7 +45,7 @@ import kotlin.jvm.Throws
object ClosedGroupsProtocolV2 {
const val groupSizeLimit = 100
private val pendingKeyPair = AtomicReference<ECKeyPair?>(null)
private val pendingKeyPair = AtomicReference<ECKeyPair>(null)
sealed class Error(val description: String) : Exception() {
object NoThread : Error("Couldn't find a thread associated with the given group public key")
@ -104,9 +105,6 @@ object ClosedGroupsProtocolV2 {
val groupDB = DatabaseFactory.getGroupDatabase(context)
val groupID = doubleEncodeGroupID(groupPublicKey)
val group = groupDB.getGroup(groupID).orNull()
val updatedMembers = group.members.map { it.serialize() }.toSet() - userPublicKey
val admins = group.admins.map { it.serialize() }
val name = group.title
val sentTime = System.currentTimeMillis()
if (group == null) {
Log.d("Loki", "Can't leave nonexistent closed group.")
@ -119,10 +117,6 @@ object ClosedGroupsProtocolV2 {
job.onRun() // Run the job immediately
// Remove the group private key and unsubscribe from PNs
disableLocalGroupAndUnsubscribe(context, apiDB, groupPublicKey, groupDB, groupID, userPublicKey)
// Notify the user
val infoType = GroupContext.Type.QUIT
val threadID = DatabaseFactory.getThreadDatabase(context).getOrCreateThreadIdFor(Recipient.from(context, Address.fromSerialized(groupID), false))
insertOutgoingInfoMessage(context, groupID, infoType, name, updatedMembers, admins, threadID, sentTime)
deferred.resolve(Unit)
}
return deferred.promise
@ -147,7 +141,7 @@ object ClosedGroupsProtocolV2 {
val admins = group.admins.map { it.serialize() }
val adminsAsData = admins.map { Hex.fromStringCondensed(it) }
val sentTime = System.currentTimeMillis()
val encryptionKeyPair = apiDB.getLatestClosedGroupEncryptionKeyPair(groupPublicKey)
val encryptionKeyPair = pendingKeyPair.get() ?: apiDB.getLatestClosedGroupEncryptionKeyPair(groupPublicKey)
if (encryptionKeyPair == null) {
Log.d("Loki", "Couldn't get encryption key pair for closed group.")
return@task Error.NoKeyPair
@ -166,10 +160,6 @@ object ClosedGroupsProtocolV2 {
val newMemberJob = ClosedGroupUpdateMessageSendJobV2(member, closedGroupNewKind, sentTime)
ApplicationContext.getInstance(context).jobManager.add(newMemberJob)
}
// Notify the user
val infoType = GroupContext.Type.UPDATE
val threadID = DatabaseFactory.getThreadDatabase(context).getOrCreateThreadIdFor(Recipient.from(context, Address.fromSerialized(groupID), false))
insertOutgoingInfoMessage(context, groupID, infoType, name, updatedMembers, admins, threadID, sentTime)
}
}
@ -210,10 +200,7 @@ object ClosedGroupsProtocolV2 {
if (isCurrentUserAdmin) {
generateAndSendNewEncryptionKeyPair(context, groupPublicKey, updatedMembers)
}
// Notify the user
val infoType = GroupContext.Type.UPDATE
val threadID = DatabaseFactory.getThreadDatabase(context).getOrCreateThreadIdFor(Recipient.from(context, Address.fromSerialized(groupID), false))
insertOutgoingInfoMessage(context, groupID, infoType, name, updatedMembers, admins, threadID, sentTime)
return@task Unit
}
}
@ -238,10 +225,6 @@ object ClosedGroupsProtocolV2 {
job.onRun() // Run the job immediately
// Update the group
groupDB.updateTitle(groupID, newName)
// Notify the user
val infoType = GroupContext.Type.UPDATE
val threadID = DatabaseFactory.getThreadDatabase(context).getOrCreateThreadIdFor(Recipient.from(context, Address.fromSerialized(groupID), false))
insertOutgoingInfoMessage(context, groupID, infoType, newName, members, admins, threadID, sentTime)
deferred.resolve(Unit)
}
return deferred.promise
@ -367,7 +350,11 @@ object ClosedGroupsProtocolV2 {
return
}
// Generate the new encryption key pair
val newKeyPair = pendingKeyPair.getAndSet(Curve.generateKeyPair()) ?: Curve.generateKeyPair()
val newKeyPair = Curve.generateKeyPair()
do {
// make sure we set the pendingKeyPair or wait until it is not null
} while (!pendingKeyPair.compareAndSet(null, newKeyPair))
// Distribute it
val proto = SignalServiceProtos.KeyPair.newBuilder()
proto.publicKey = ByteString.copyFrom(newKeyPair.publicKey.serialize().removing05PrefixIfNeeded())
@ -382,6 +369,7 @@ object ClosedGroupsProtocolV2 {
job.onRun() // Run the job immediately
// Store it * after * having sent out the message to the group
apiDB.addClosedGroupEncryptionKeyPair(newKeyPair, groupPublicKey)
pendingKeyPair.set(null)
}
@JvmStatic