Tweaked some open group handling and a couple of onboarding issues

Updated the OpenGroup adding and polling logic to reduce duplicate API calls
Updated the BackgroundGroupAddJob to start a GroupAvatarDownloadJob instead of running the download itself (to appear to run faster)
Defaulted OpenGroups to use blinded auth when no server capabilities are present
Fixed an issue where the background poller could be started even though the onboarding hadn't been completed
Fixed an issue where the database could get into an invalid state if the app was restarted during onboarding

app/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java

@@ -245,6 +245,12 @@ public class ApplicationContext extends Application implements DefaultLifecycleO
         Log.i(TAG, "App is now visible.");
         KeyCachingService.onAppForegrounded(this);
 
+        // If the user account hasn't been created or onboarding wasn't finished then don't start
+        // the pollers
+        if (TextSecurePreferences.getLocalNumber(this) == null || !TextSecurePreferences.hasSeenWelcomeScreen(this)) {
+            return;
+        }
+
         ThreadUtils.queue(()->{
             if (poller != null) {
                 poller.setCaughtUp(false);

app/src/main/java/org/thoughtcrime/securesms/database/LokiAPIDatabase.kt

@@ -300,6 +300,11 @@ class LokiAPIDatabase(context: Context, helper: SQLCipherOpenHelper) : Database(
         val lastHash = database.insertOrUpdate(lastMessageHashValueTable2, row, query, arrayOf( snode.toString(), publicKey, namespace.toString() ))
     }
 
+    override fun clearAllLastMessageHashes() {
+        val database = databaseHelper.writableDatabase
+        database.delete(lastMessageHashValueTable2, null, null)
+    }
+
     override fun getReceivedMessageHashValues(publicKey: String, namespace: Int): Set<String>? {
         val database = databaseHelper.readableDatabase
         val query = "${Companion.publicKey} = ? AND ${Companion.receivedMessageHashNamespace} = ?"
@@ -321,6 +326,11 @@ class LokiAPIDatabase(context: Context, helper: SQLCipherOpenHelper) : Database(
         database.insertOrUpdate(receivedMessageHashValuesTable, row, query, arrayOf( publicKey, namespace.toString() ))
     }
 
+    override fun clearReceivedMessageHashValues() {
+        val database = databaseHelper.writableDatabase
+        database.delete(receivedMessageHashValuesTable, null, null)
+    }
+
     override fun getAuthToken(server: String): String? {
         val database = databaseHelper.readableDatabase
         return database.get(openGroupAuthTokenTable, "${Companion.server} = ?", wrap(server)) { cursor ->

app/src/main/java/org/thoughtcrime/securesms/groups/OpenGroupManager.kt

@@ -58,14 +58,14 @@ object OpenGroupManager {
     }
 
     @WorkerThread
-    fun add(server: String, room: String, publicKey: String, context: Context) {
+    fun add(server: String, room: String, publicKey: String, context: Context): OpenGroupApi.RoomInfo? {
         val openGroupID = "$server.$room"
         var threadID = GroupManager.getOpenGroupThreadID(openGroupID, context)
         val storage = MessagingModuleConfiguration.shared.storage
         val threadDB = DatabaseComponent.get(context).lokiThreadDatabase()
         // Check it it's added already
         val existingOpenGroup = threadDB.getOpenGroupChat(threadID)
-        if (existingOpenGroup != null) { return }
+        if (existingOpenGroup != null) { return null }
         // Clear any existing data if needed
         storage.removeLastDeletionServerID(room, server)
         storage.removeLastMessageServerID(room, server)
@@ -73,18 +73,17 @@ object OpenGroupManager {
         storage.removeLastOutboxMessageId(server)
         // Store the public key
         storage.setOpenGroupPublicKey(server, publicKey)
-        // Get capabilities
-        val capabilities = OpenGroupApi.getCapabilities(server).get()
+        // Get capabilities & room info
+        val (capabilities, info) = OpenGroupApi.getCapabilitiesAndRoomInfo(room, server).get()
         storage.setServerCapabilities(server, capabilities.capabilities)
-        // Get room info
-        val info = OpenGroupApi.getRoomInfo(room, server).get()
         storage.setUserCount(room, server, info.activeUsers)
         // Create the group locally if not available already
         if (threadID < 0) {
             threadID = GroupManager.createOpenGroup(openGroupID, context, null, info.name).threadId
         }
-        val openGroup = OpenGroup(server, room, info.name, info.infoUpdates, publicKey)
+        val openGroup = OpenGroup(server, room, publicKey, info.name, info.imageId, info.infoUpdates)
         threadDB.setOpenGroupChat(openGroup, threadID)
+        return info
     }
 
     fun restartPollerForServer(server: String) {
@@ -130,12 +129,13 @@ object OpenGroupManager {
         }
     }
 
-    fun addOpenGroup(urlAsString: String, context: Context) {
-        val url = HttpUrl.parse(urlAsString) ?: return
+    fun addOpenGroup(urlAsString: String, context: Context): OpenGroupApi.RoomInfo? {
+        val url = HttpUrl.parse(urlAsString) ?: return null
         val server = OpenGroup.getServer(urlAsString)
-        val room = url.pathSegments().firstOrNull() ?: return
-        val publicKey = url.queryParameter("public_key") ?: return
-        add(server.toString().removeSuffix("/"), room, publicKey, context) // assume migrated from calling function
+        val room = url.pathSegments().firstOrNull() ?: return null
+        val publicKey = url.queryParameter("public_key") ?: return null
+
+        return add(server.toString().removeSuffix("/"), room, publicKey, context) // assume migrated from calling function
     }
 
     fun updateOpenGroup(openGroup: OpenGroup, context: Context) {

app/src/main/java/org/thoughtcrime/securesms/notifications/BackgroundPollWorker.kt

@@ -44,7 +44,7 @@ class BackgroundPollWorker(val context: Context, params: WorkerParameters) : Wor
     }
 
     override fun doWork(): Result {
-        if (TextSecurePreferences.getLocalNumber(context) == null) {
+        if (TextSecurePreferences.getLocalNumber(context) == null || !TextSecurePreferences.hasSeenWelcomeScreen(context)) {
             Log.v(TAG, "User not registered yet.")
             return Result.failure()
         }

app/src/main/java/org/thoughtcrime/securesms/onboarding/LinkDeviceActivity.kt

@@ -22,8 +22,10 @@ import kotlinx.coroutines.launch
 import network.loki.messenger.R
 import network.loki.messenger.databinding.ActivityLinkDeviceBinding
 import network.loki.messenger.databinding.FragmentRecoveryPhraseBinding
+import org.session.libsession.snode.SnodeModule
 import org.session.libsession.utilities.TextSecurePreferences
 import org.session.libsignal.crypto.MnemonicCodec
+import org.session.libsignal.database.LokiAPIDatabaseProtocol
 import org.session.libsignal.utilities.Hex
 import org.session.libsignal.utilities.KeyHelper
 import org.session.libsignal.utilities.Log
@@ -39,6 +41,8 @@ import org.thoughtcrime.securesms.util.setUpActionBarSessionLogo
 
 class LinkDeviceActivity : BaseActionBarActivity(), ScanQRCodeWrapperFragmentDelegate {
     private lateinit var binding: ActivityLinkDeviceBinding
+    internal val database: LokiAPIDatabaseProtocol
+        get() = SnodeModule.shared.storage
     private val adapter = LinkDeviceActivityAdapter(this)
     private var restoreJob: Job? = null
 
@@ -99,6 +103,11 @@ class LinkDeviceActivity : BaseActionBarActivity(), ScanQRCodeWrapperFragmentDel
         if (restoreJob?.isActive == true) return
 
         restoreJob = lifecycleScope.launch {
+            // This is here to resolve a case where the app restarts before a user completes onboarding
+            // which can result in an invalid database state
+            database.clearAllLastMessageHashes()
+            database.clearReceivedMessageHashValues()
+
             // RestoreActivity handles seed this way
             val keyPairGenerationResult = KeyPairUtilities.generate(seed)
             val x25519KeyPair = keyPairGenerationResult.x25519KeyPair

app/src/main/java/org/thoughtcrime/securesms/onboarding/RecoveryPhraseRestoreActivity.kt

@@ -13,8 +13,10 @@ import android.view.View
 import android.widget.Toast
 import network.loki.messenger.R
 import network.loki.messenger.databinding.ActivityRecoveryPhraseRestoreBinding
+import org.session.libsession.snode.SnodeModule
 import org.session.libsession.utilities.TextSecurePreferences
 import org.session.libsignal.crypto.MnemonicCodec
+import org.session.libsignal.database.LokiAPIDatabaseProtocol
 import org.session.libsignal.utilities.Hex
 import org.session.libsignal.utilities.KeyHelper
 import org.session.libsignal.utilities.hexEncodedPublicKey
@@ -26,6 +28,8 @@ import org.thoughtcrime.securesms.util.setUpActionBarSessionLogo
 
 class RecoveryPhraseRestoreActivity : BaseActionBarActivity() {
     private lateinit var binding: ActivityRecoveryPhraseRestoreBinding
+    internal val database: LokiAPIDatabaseProtocol
+        get() = SnodeModule.shared.storage
     // region Lifecycle
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -64,6 +68,11 @@ class RecoveryPhraseRestoreActivity : BaseActionBarActivity() {
     private fun restore() {
         val mnemonic = binding.mnemonicEditText.text.toString()
         try {
+            // This is here to resolve a case where the app restarts before a user completes onboarding
+            // which can result in an invalid database state
+            database.clearAllLastMessageHashes()
+            database.clearReceivedMessageHashValues()
+
             val loadFileContents: (String) -> String = { fileName ->
                 MnemonicUtilities.loadFileContents(this, fileName)
             }

app/src/main/java/org/thoughtcrime/securesms/onboarding/RegisterActivity.kt

@@ -18,8 +18,10 @@ import android.widget.Toast
 import com.goterl.lazysodium.utils.KeyPair
 import network.loki.messenger.R
 import network.loki.messenger.databinding.ActivityRegisterBinding
+import org.session.libsession.snode.SnodeModule
 import org.session.libsession.utilities.TextSecurePreferences
 import org.session.libsignal.crypto.ecc.ECKeyPair
+import org.session.libsignal.database.LokiAPIDatabaseProtocol
 import org.session.libsignal.utilities.KeyHelper
 import org.session.libsignal.utilities.hexEncodedPublicKey
 import org.thoughtcrime.securesms.BaseActionBarActivity
@@ -29,6 +31,8 @@ import org.thoughtcrime.securesms.util.setUpActionBarSessionLogo
 
 class RegisterActivity : BaseActionBarActivity() {
     private lateinit var binding: ActivityRegisterBinding
+    internal val database: LokiAPIDatabaseProtocol
+        get() = SnodeModule.shared.storage
     private var seed: ByteArray? = null
     private var ed25519KeyPair: KeyPair? = null
     private var x25519KeyPair: ECKeyPair? = null
@@ -109,6 +113,11 @@ class RegisterActivity : BaseActionBarActivity() {
 
     // region Interaction
     private fun register() {
+        // This is here to resolve a case where the app restarts before a user completes onboarding
+        // which can result in an invalid database state
+        database.clearAllLastMessageHashes()
+        database.clearReceivedMessageHashValues()
+
         KeyPairUtilities.store(this, seed!!, ed25519KeyPair!!, x25519KeyPair!!)
         val userHexEncodedPublicKey = x25519KeyPair!!.hexEncodedPublicKey
         val registrationID = KeyHelper.generateRegistrationId(false)

libsession/src/main/java/org/session/libsession/messaging/jobs/BackgroundGroupAddJob.kt

@@ -41,15 +41,10 @@ class BackgroundGroupAddJob(val joinUrl: String): Job {
             }
             // get image
             storage.setOpenGroupPublicKey(openGroup.server, openGroup.serverPublicKey)
-            val (capabilities, info) = OpenGroupApi.getCapabilitiesAndRoomInfo(openGroup.room, openGroup.server, false).get()
-            storage.setServerCapabilities(openGroup.server, capabilities.capabilities)
-            val imageId = info.imageId
-            storage.addOpenGroup(openGroup.joinUrl())
+            val info = storage.addOpenGroup(openGroup.joinUrl())
+            val imageId = info?.imageId
             if (imageId != null) {
-                val bytes = OpenGroupApi.downloadOpenGroupProfilePicture(openGroup.server, openGroup.room, imageId).get()
-                val groupId = GroupUtil.getEncodedOpenGroupID("${openGroup.server}.${openGroup.room}".toByteArray())
-                storage.updateProfilePicture(groupId, bytes)
-                storage.updateTimestampUpdated(groupId, System.currentTimeMillis())
+                JobQueue.shared.add(GroupAvatarDownloadJob(openGroup.room, openGroup.server))
             }
             Log.d(KEY, "onOpenGroupAdded(${openGroup.server})")
             storage.onOpenGroupAdded(openGroup.server)

libsession/src/main/java/org/session/libsession/messaging/jobs/GroupAvatarDownloadJob.kt

@@ -14,10 +14,9 @@ class GroupAvatarDownloadJob(val room: String, val server: String) : Job {
 
     override fun execute() {
         val storage = MessagingModuleConfiguration.shared.storage
+        val imageId = storage.getOpenGroup(room, server)?.imageId ?: return
         try {
-            val info = OpenGroupApi.getRoomInfo(room, server).get()
-            val imageId = info.imageId ?: return
-            val bytes = OpenGroupApi.downloadOpenGroupProfilePicture(server, info.token, imageId).get()
+            val bytes = OpenGroupApi.downloadOpenGroupProfilePicture(server, room, imageId).get()
             val groupId = GroupUtil.getEncodedOpenGroupID("$server.$room".toByteArray())
             storage.updateProfilePicture(groupId, bytes)
             storage.updateTimestampUpdated(groupId, System.currentTimeMillis())

libsession/src/main/java/org/session/libsession/messaging/open_groups/OpenGroup.kt

@@ -11,15 +11,17 @@ data class OpenGroup(
     val id: String,
     val name: String,
     val publicKey: String,
+    val imageId: String?,
     val infoUpdates: Int,
 ) {
 
-    constructor(server: String, room: String, name: String, infoUpdates: Int, publicKey: String) : this(
+    constructor(server: String, room: String, publicKey: String, name: String, imageId: String?, infoUpdates: Int) : this(
         server = server,
         room = room,
         id = "$server.$room",
         name = name,
         publicKey = publicKey,
+        imageId = imageId,
         infoUpdates = infoUpdates,
     )
 
@@ -31,11 +33,12 @@ data class OpenGroup(
                 if (!json.has("room")) return null
                 val room = json.get("room").asText().toLowerCase(Locale.US)
                 val server = json.get("server").asText().toLowerCase(Locale.US)
-                val displayName = json.get("displayName").asText()
                 val publicKey = json.get("publicKey").asText()
+                val displayName = json.get("displayName").asText()
+                val imageId = json.get("imageId")?.asText()
                 val infoUpdates = json.get("infoUpdates")?.asText()?.toIntOrNull() ?: 0
                 val capabilities = json.get("capabilities")?.asText()?.split(",") ?: emptyList()
-                OpenGroup(server, room, displayName, infoUpdates, publicKey)
+                OpenGroup(server, room, displayName, publicKey, imageId, infoUpdates)
             } catch (e: Exception) {
                 Log.w("Loki", "Couldn't parse open group from JSON: $jsonAsString.", e);
                 null
@@ -53,11 +56,12 @@ data class OpenGroup(
         }
     }
 
-    fun toJson(): Map<String,String> = mapOf(
+    fun toJson(): Map<String,String?> = mapOf(
         "room" to room,
         "server" to server,
-        "displayName" to name,
         "publicKey" to publicKey,
+        "displayName" to name,
+        "imageId" to imageId,
         "infoUpdates" to infoUpdates.toString(),
     )
 

libsession/src/main/java/org/session/libsession/messaging/open_groups/OpenGroupApi.kt

@@ -91,7 +91,7 @@ object OpenGroupApi {
         val created: Long = 0,
         val activeUsers: Int = 0,
         val activeUsersCutoff: Int = 0,
-        val imageId: Long? = null,
+        val imageId: String? = null,
         val pinnedMessages: List<PinnedMessage> = emptyList(),
         val admin: Boolean = false,
         val globalAdmin: Boolean = false,
@@ -337,7 +337,7 @@ object OpenGroupApi {
                     .plus(request.verb.rawValue.toByteArray())
                     .plus("/${request.endpoint.value}".toByteArray())
                     .plus(bodyHash)
-                if (serverCapabilities.contains(Capability.BLIND.name.lowercase())) {
+                if (serverCapabilities.isEmpty() || serverCapabilities.contains(Capability.BLIND.name.lowercase())) {
                     SodiumUtilities.blindedKeyPair(publicKey, ed25519KeyPair)?.let { keyPair ->
                         pubKey = SessionId(
                             IdPrefix.BLINDED,
@@ -395,13 +395,13 @@ object OpenGroupApi {
     fun downloadOpenGroupProfilePicture(
         server: String,
         roomID: String,
-        imageId: Long
+        imageId: String
     ): Promise<ByteArray, Exception> {
         val request = Request(
             verb = GET,
             room = roomID,
             server = server,
-            endpoint = Endpoint.RoomFileIndividual(roomID, imageId.toString())
+            endpoint = Endpoint.RoomFileIndividual(roomID, imageId)
         )
         return getResponseBody(request)
     }
@@ -794,16 +794,14 @@ object OpenGroupApi {
 
     private fun sequentialBatch(
         server: String,
-        requests: MutableList<BatchRequestInfo<*>>,
-        authRequired: Boolean = true
+        requests: MutableList<BatchRequestInfo<*>>
     ): Promise<List<BatchResponse<*>>, Exception> {
         val request = Request(
             verb = POST,
             room = null,
             server = server,
             endpoint = Endpoint.Sequence,
-            parameters = requests.map { it.request },
-            isAuthRequired = authRequired
+            parameters = requests.map { it.request }
         )
         return getBatchResponseJson(request, requests)
     }
@@ -912,8 +910,7 @@ object OpenGroupApi {
 
     fun getCapabilitiesAndRoomInfo(
         room: String,
-        server: String,
-        authRequired: Boolean = true
+        server: String
     ): Promise<Pair<Capabilities, RoomInfo>, Exception> {
         val requests = mutableListOf<BatchRequestInfo<*>>(
             BatchRequestInfo(
@@ -933,7 +930,7 @@ object OpenGroupApi {
                 responseType = object : TypeReference<RoomInfo>(){}
             )
         )
-        return sequentialBatch(server, requests, authRequired).map {
+        return sequentialBatch(server, requests).map {
             val capabilities = it.firstOrNull()?.body as? Capabilities ?: throw Error.ParsingFailed
             val roomInfo = it.lastOrNull()?.body as? RoomInfo ?: throw Error.ParsingFailed
             capabilities to roomInfo

libsession/src/main/java/org/session/libsession/messaging/sending_receiving/pollers/OpenGroupPoller.kt

@@ -59,7 +59,7 @@ class OpenGroupPoller(private val server: String, private val executorService: S
     fun poll(isPostCapabilitiesRetry: Boolean = false): Promise<Unit, Exception> {
         val storage = MessagingModuleConfiguration.shared.storage
         val rooms = storage.getAllOpenGroups().values.filter { it.server == server }.map { it.room }
-        rooms.forEach { downloadGroupAvatarIfNeeded(it) }
+
         return OpenGroupApi.poll(rooms, server).successBackground { responses ->
             responses.filterNot { it.body == null }.forEach { response ->
                 when (response.endpoint) {
@@ -123,9 +123,10 @@ class OpenGroupPoller(private val server: String, private val executorService: S
         val openGroup = OpenGroup(
             server = server,
             room = pollInfo.token,
-            name = pollInfo.details?.name ?: "",
-            infoUpdates = pollInfo.details?.infoUpdates ?: 0,
+            name = if (pollInfo.details != null) { pollInfo.details.name } else { existingOpenGroup.name },
+            infoUpdates = if (pollInfo.details != null) { pollInfo.details.infoUpdates } else { existingOpenGroup.infoUpdates },
             publicKey = publicKey,
+            imageId = if (pollInfo.details != null) { pollInfo.details.imageId } else { existingOpenGroup.imageId }
         )
         // - Open Group changes
         storage.updateOpenGroup(openGroup)
@@ -155,6 +156,11 @@ class OpenGroupPoller(private val server: String, private val executorService: S
                 GroupMember(groupId, it, GroupMemberRole.HIDDEN_ADMIN)
             })
         }
+
+        // Start downloading the room image (if we don't have one or it's been updated)
+        if (pollInfo.details?.imageId != null && pollInfo.details.imageId != existingOpenGroup.imageId) {
+            JobQueue.shared.add(GroupAvatarDownloadJob(roomToken, server))
+        }
     }
 
     private fun handleMessages(
@@ -284,16 +290,4 @@ class OpenGroupPoller(private val server: String, private val executorService: S
             JobQueue.shared.add(deleteJob)
         }
     }
-
-    private fun downloadGroupAvatarIfNeeded(room: String) {
-        val storage = MessagingModuleConfiguration.shared.storage
-        if (storage.getGroupAvatarDownloadJob(server, room) != null) return
-        val groupId = GroupUtil.getEncodedOpenGroupID("$server.$room".toByteArray())
-        storage.getGroup(groupId)?.let {
-            if (System.currentTimeMillis() > it.updatedTimestamp + TimeUnit.DAYS.toMillis(7)) {
-                JobQueue.shared.add(GroupAvatarDownloadJob(room, server))
-            }
-        }
-    }
-
 }

libsignal/src/main/java/org/session/libsignal/database/LokiAPIDatabaseProtocol.kt

@@ -16,8 +16,10 @@ interface LokiAPIDatabaseProtocol {
     fun setSwarm(publicKey: String, newValue: Set<Snode>)
     fun getLastMessageHashValue(snode: Snode, publicKey: String, namespace: Int): String?
     fun setLastMessageHashValue(snode: Snode, publicKey: String, newValue: String, namespace: Int)
+    fun clearAllLastMessageHashes()
     fun getReceivedMessageHashValues(publicKey: String, namespace: Int): Set<String>?
     fun setReceivedMessageHashValues(publicKey: String, newValue: Set<String>, namespace: Int)
+    fun clearReceivedMessageHashValues()
     fun getAuthToken(server: String): String?
     fun setAuthToken(server: String, newValue: String?)
     fun setUserCount(room: String, server: String, newValue: Int)