121 lines
5.6 KiB
Kotlin
121 lines
5.6 KiB
Kotlin
package org.session.libsession.messaging.sending_receiving.pollers
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import nl.komponents.kovenant.Promise
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import nl.komponents.kovenant.functional.map
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import org.session.libsession.messaging.MessagingModuleConfiguration
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import org.session.libsession.messaging.jobs.JobQueue
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import org.session.libsession.messaging.jobs.MessageReceiveJob
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import org.session.libsession.messaging.jobs.TrimThreadJob
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import org.session.libsession.messaging.open_groups.OpenGroupAPIV2
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import org.session.libsession.messaging.open_groups.OpenGroupMessageV2
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import org.session.libsession.utilities.Address
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import org.session.libsession.utilities.GroupUtil
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import org.session.libsignal.protos.SignalServiceProtos
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import org.session.libsignal.utilities.Log
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import org.session.libsignal.utilities.successBackground
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import java.util.concurrent.ScheduledExecutorService
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import java.util.concurrent.ScheduledFuture
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import java.util.concurrent.TimeUnit
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import kotlin.math.max
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class OpenGroupPollerV2(private val server: String, private val executorService: ScheduledExecutorService?) {
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var hasStarted = false
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var isCaughtUp = false
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var secondToLastJob: MessageReceiveJob? = null
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private var future: ScheduledFuture<*>? = null
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companion object {
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private val pollInterval: Long = 4 * 1000
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const val maxInactivityPeriod = 14 * 24 * 60 * 60 * 1000
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}
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fun startIfNeeded() {
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if (hasStarted) { return }
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hasStarted = true
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future = executorService?.schedule(::poll, 0, TimeUnit.MILLISECONDS)
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}
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fun stop() {
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future?.cancel(false)
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hasStarted = false
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}
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fun poll(isBackgroundPoll: Boolean = false): Promise<Unit, Exception> {
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val storage = MessagingModuleConfiguration.shared.storage
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val rooms = storage.getAllV2OpenGroups().values.filter { it.server == server }.map { it.room }
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return OpenGroupAPIV2.compactPoll(rooms, server).successBackground { responses ->
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responses.forEach { (room, response) ->
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val openGroupID = "$server.$room"
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handleNewMessages(room, openGroupID, response.messages, isBackgroundPoll)
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handleDeletedMessages(room, openGroupID, response.deletions)
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if (secondToLastJob == null && !isCaughtUp) {
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isCaughtUp = true
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}
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}
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}.always {
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executorService?.schedule(this@OpenGroupPollerV2::poll, OpenGroupPollerV2.pollInterval, TimeUnit.MILLISECONDS)
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}.map { }
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}
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private fun handleNewMessages(room: String, openGroupID: String, messages: List<OpenGroupMessageV2>, isBackgroundPoll: Boolean) {
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val storage = MessagingModuleConfiguration.shared.storage
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val groupID = GroupUtil.getEncodedOpenGroupID(openGroupID.toByteArray())
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// check thread still exists
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val threadId = storage.getThreadId(Address.fromSerialized(groupID)) ?: -1
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val threadExists = threadId >= 0
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if (!hasStarted || !threadExists) { return }
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var latestJob: MessageReceiveJob? = null
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messages.sortedBy { it.serverID!! }.forEach { message ->
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try {
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val senderPublicKey = message.sender!!
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val builder = SignalServiceProtos.Envelope.newBuilder()
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builder.type = SignalServiceProtos.Envelope.Type.SESSION_MESSAGE
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builder.source = senderPublicKey
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builder.sourceDevice = 1
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builder.content = message.toProto().toByteString()
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builder.timestamp = message.sentTimestamp
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val envelope = builder.build()
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val job = MessageReceiveJob(envelope.toByteArray(), message.serverID, openGroupID)
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if (isBackgroundPoll) {
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job.executeAsync()
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} else {
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JobQueue.shared.add(job)
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if (!isCaughtUp) {
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secondToLastJob = latestJob
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}
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latestJob = job
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}
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} catch (e: Exception) {
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Log.e("Loki", "Exception parsing message", e)
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}
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}
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val currentLastMessageServerID = storage.getLastMessageServerID(room, server) ?: 0
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val actualMax = max(messages.mapNotNull { it.serverID }.maxOrNull() ?: 0, currentLastMessageServerID)
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if (actualMax > 0) {
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storage.setLastMessageServerID(room, server, actualMax)
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}
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JobQueue.shared.add(TrimThreadJob(threadId))
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}
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private fun handleDeletedMessages(room: String, openGroupID: String, deletedMessageServerIDs: List<Long>) {
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val storage = MessagingModuleConfiguration.shared.storage
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val dataProvider = MessagingModuleConfiguration.shared.messageDataProvider
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val groupID = GroupUtil.getEncodedOpenGroupID(openGroupID.toByteArray())
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val threadID = storage.getThreadId(Address.fromSerialized(groupID)) ?: return
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val deletedMessageIDs = deletedMessageServerIDs.mapNotNull { serverID ->
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val messageID = dataProvider.getMessageID(serverID, threadID)
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if (messageID == null) {
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Log.d("Loki", "Couldn't find message ID for message with serverID: $serverID.")
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}
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messageID
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}
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deletedMessageIDs.forEach { (messageId, isSms) ->
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MessagingModuleConfiguration.shared.messageDataProvider.deleteMessage(messageId, isSms)
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}
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val currentMax = storage.getLastDeletionServerID(room, server) ?: 0L
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val latestMax = deletedMessageServerIDs.maxOrNull() ?: 0L
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if (latestMax > currentMax && latestMax != 0L) {
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storage.setLastDeletionServerID(room, server, latestMax)
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}
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}
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} |