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[SES-1966] Attachment batch download and tidy-up (#1507)

Browse Source 
* Attachment batch download

* Addressed feedback and test issues

* Feedback fixes

* timedWindow for flow

* Feedback

* Dispatchers

* Remove `flowOn`

* New implementation of timedBuffer

* Organise import

* Feedback

* Fix test

* Tidied up logic around `eligibleForDownload`

* Updated comment

---------

Co-authored-by: fanchao <git@fanchao.dev>
This commit is contained in:
Fanchao Liu 2024-07-01 17:36:50 +10:00 committed by GitHub
parent fec67e282a
commit 0da949c8e6
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17 changed files with 301 additions and 58 deletions
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115
app/src/main/java/org/thoughtcrime/securesms/conversation/v2/AttachmentDownloadHandler.kt Normal file
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@ -0,0 +1,115 @@
package org.thoughtcrime.securesms.conversation.v2
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.SupervisorJob
import kotlinx.coroutines.channels.Channel
import kotlinx.coroutines.channels.Channel.Factory.UNLIMITED
import kotlinx.coroutines.flow.map
import kotlinx.coroutines.flow.receiveAsFlow
import kotlinx.coroutines.launch
import kotlinx.coroutines.plus
import org.session.libsession.database.MessageDataProvider
import org.session.libsession.database.StorageProtocol
import org.session.libsession.messaging.jobs.AttachmentDownloadJob
import org.session.libsession.messaging.jobs.AttachmentUploadJob
import org.session.libsession.messaging.jobs.JobQueue
import org.session.libsession.messaging.sending_receiving.attachments.AttachmentTransferProgress
import org.session.libsession.messaging.sending_receiving.attachments.DatabaseAttachment
import org.session.libsignal.utilities.Log
import org.thoughtcrime.securesms.util.flatten
import org.thoughtcrime.securesms.util.timedBuffer
/**
* [AttachmentDownloadHandler] is responsible for handling attachment download requests. These
* requests will go through different level of checking before they are queued for download.
*
* To use this handler, call [onAttachmentDownloadRequest] with the attachment that needs to be
* downloaded. The call to [onAttachmentDownloadRequest] is cheap and can be called multiple times.
*/
class AttachmentDownloadHandler(
private val storage: StorageProtocol,
private val messageDataProvider: MessageDataProvider,
jobQueue: JobQueue = JobQueue.shared,
scope: CoroutineScope = CoroutineScope(Dispatchers.Default) + SupervisorJob(),
) {
companion object {
private const val BUFFER_TIMEOUT_MILLS = 500L
private const val BUFFER_MAX_ITEMS = 10
private const val LOG_TAG = "AttachmentDownloadHelper"
}
private val downloadRequests = Channel<DatabaseAttachment>(UNLIMITED)
init {
scope.launch(Dispatchers.Default) {
downloadRequests
.receiveAsFlow()
.timedBuffer(BUFFER_TIMEOUT_MILLS, BUFFER_MAX_ITEMS)
.map(::filterEligibleAttachments)
.flatten()
.collect { attachment ->
jobQueue.add(
AttachmentDownloadJob(
attachmentID = attachment.attachmentId.rowId,
databaseMessageID = attachment.mmsId
)
)
}
}
}
/**
* Filter attachments that are eligible for creating download jobs.
*
*/
private fun filterEligibleAttachments(attachments: List<DatabaseAttachment>): List<DatabaseAttachment> {
val pendingAttachmentIDs = storage
.getAllPendingJobs(AttachmentDownloadJob.KEY, AttachmentUploadJob.KEY)
.values
.mapNotNull {
(it as? AttachmentUploadJob)?.attachmentID
?: (it as? AttachmentDownloadJob)?.attachmentID
}
.toSet()
return attachments.filter { attachment ->
eligibleForDownloadTask(
attachment,
pendingAttachmentIDs,
)
}
}
/**
* Check if the attachment is eligible for download task.
*/
private fun eligibleForDownloadTask(
attachment: DatabaseAttachment,
pendingJobsAttachmentRowIDs: Set<Long>,
): Boolean {
if (attachment.attachmentId.rowId in pendingJobsAttachmentRowIDs) {
return false
}
val threadID = storage.getThreadIdForMms(attachment.mmsId)
return AttachmentDownloadJob.eligibleForDownload(
threadID, storage, messageDataProvider, attachment.mmsId,
)
}
fun onAttachmentDownloadRequest(attachment: DatabaseAttachment) {
if (attachment.transferState != AttachmentTransferProgress.TRANSFER_PROGRESS_PENDING) {
Log.i(
LOG_TAG,
"Attachment ${attachment.attachmentId} is not pending, skipping download"
)
return
}
downloadRequests.trySend(attachment)
}
}

6
app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationActivityV2.kt
View File

@ -333,11 +333,7 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
onDeselect(message, position, it)
}
},
onAttachmentNeedsDownload = { attachmentId, mmsId ->
lifecycleScope.launch(Dispatchers.IO) {
JobQueue.shared.add(AttachmentDownloadJob(attachmentId, mmsId))
}
},
onAttachmentNeedsDownload = viewModel::onAttachmentDownloadRequest,
glide = glide,
lifecycleCoroutineScope = lifecycleScope
)

3
app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationAdapter.kt
View File

@ -19,6 +19,7 @@ import kotlinx.coroutines.isActive
import kotlinx.coroutines.launch
import network.loki.messenger.R
import org.session.libsession.messaging.contacts.Contact
import org.session.libsession.messaging.sending_receiving.attachments.DatabaseAttachment
import org.thoughtcrime.securesms.conversation.v2.messages.ControlMessageView
import org.thoughtcrime.securesms.conversation.v2.messages.VisibleMessageView
import org.thoughtcrime.securesms.conversation.v2.messages.VisibleMessageViewDelegate
@ -40,7 +41,7 @@ class ConversationAdapter(
private val onItemSwipeToReply: (MessageRecord, Int) -> Unit,
private val onItemLongPress: (MessageRecord, Int, VisibleMessageView) -> Unit,
private val onDeselect: (MessageRecord, Int) -> Unit,
private val onAttachmentNeedsDownload: (Long, Long) -> Unit,
private val onAttachmentNeedsDownload: (DatabaseAttachment) -> Unit,
private val glide: GlideRequests,
lifecycleCoroutineScope: LifecycleCoroutineScope
) : CursorRecyclerViewAdapter<ViewHolder>(context, cursor) {

38
app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationViewModel.kt
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@ -1,46 +1,44 @@
package org.thoughtcrime.securesms.conversation.v2
import android.content.Context
import androidx.lifecycle.ViewModel
import androidx.lifecycle.ViewModelProvider
import androidx.lifecycle.viewModelScope
import com.goterl.lazysodium.utils.KeyPair
import dagger.assisted.Assisted
import dagger.assisted.AssistedInject
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import kotlinx.coroutines.flow.update
import kotlinx.coroutines.launch
import org.session.libsession.database.MessageDataProvider
import org.session.libsession.messaging.messages.ExpirationConfiguration
import org.session.libsession.messaging.open_groups.OpenGroup
import org.session.libsession.messaging.open_groups.OpenGroupApi
import org.session.libsession.messaging.sending_receiving.attachments.DatabaseAttachment
import org.session.libsession.messaging.utilities.SessionId
import org.session.libsession.messaging.utilities.SodiumUtilities
import org.session.libsession.utilities.Address
import org.session.libsession.utilities.recipients.Recipient
import org.session.libsignal.utilities.IdPrefix
import org.session.libsignal.utilities.Log
import org.thoughtcrime.securesms.database.MmsDatabase
import org.thoughtcrime.securesms.audio.AudioSlidePlayer
import org.thoughtcrime.securesms.database.Storage
import org.thoughtcrime.securesms.database.model.MessageRecord
import org.thoughtcrime.securesms.database.model.MmsMessageRecord
import org.thoughtcrime.securesms.repository.ConversationRepository
import java.util.UUID
class ConversationViewModel(
val threadId: Long,
val edKeyPair: KeyPair?,
private val repository: ConversationRepository,
private val storage: Storage
private val storage: Storage,
private val messageDataProvider: MessageDataProvider,
database: MmsDatabase,
) : ViewModel() {
val showSendAfterApprovalText: Boolean
@ -92,6 +90,11 @@ class ConversationViewModel(
// allow reactions if the open group is null (normal conversations) or the open group's capabilities include reactions
get() = (openGroup == null || OpenGroupApi.Capability.REACTIONS.name.lowercase() in serverCapabilities)
private val attachmentDownloadHandler = AttachmentDownloadHandler(
storage = storage,
messageDataProvider = messageDataProvider,
scope = viewModelScope,
)
init {
viewModelScope.launch(Dispatchers.IO) {
@ -242,7 +245,7 @@ class ConversationViewModel(
currentUiState.copy(uiMessages = messages)
}
}
fun messageShown(messageId: Long) {
_uiState.update { currentUiState ->
val messages = currentUiState.uiMessages.filterNot { it.id == messageId }
@ -265,6 +268,10 @@ class ConversationViewModel(
storage.getLastLegacyRecipient(address.serialize())?.let { Recipient.from(context, Address.fromSerialized(it), false) }
}
fun onAttachmentDownloadRequest(attachment: DatabaseAttachment) {
attachmentDownloadHandler.onAttachmentDownloadRequest(attachment)
}
@dagger.assisted.AssistedFactory
interface AssistedFactory {
fun create(threadId: Long, edKeyPair: KeyPair?): Factory
@ -275,11 +282,20 @@ class ConversationViewModel(
@Assisted private val threadId: Long,
@Assisted private val edKeyPair: KeyPair?,
private val repository: ConversationRepository,
private val storage: Storage
private val storage: Storage,
private val mmsDatabase: MmsDatabase,
private val messageDataProvider: MessageDataProvider,
) : ViewModelProvider.Factory {
override fun <T : ViewModel> create(modelClass: Class<T>): T {
return ConversationViewModel(threadId, edKeyPair, repository, storage) as T
return ConversationViewModel(
threadId = threadId,
edKeyPair = edKeyPair,
repository = repository,
storage = storage,
messageDataProvider = messageDataProvider,
database = mmsDatabase
) as T
}
}
}

3
app/src/main/java/org/thoughtcrime/securesms/conversation/v2/MessageDetailActivity.kt
View File

@ -55,6 +55,7 @@ import dagger.hilt.android.AndroidEntryPoint
import kotlinx.coroutines.launch
import network.loki.messenger.R
import network.loki.messenger.databinding.ViewVisibleMessageContentBinding
import org.session.libsession.messaging.sending_receiving.attachments.DatabaseAttachment
import org.thoughtcrime.securesms.MediaPreviewActivity.getPreviewIntent
import org.thoughtcrime.securesms.PassphraseRequiredActionBarActivity
import org.thoughtcrime.securesms.database.Storage
@ -149,7 +150,7 @@ fun MessageDetails(
onResend: (() -> Unit)? = null,
onDelete: () -> Unit = {},
onClickImage: (Int) -> Unit = {},
onAttachmentNeedsDownload: (Long, Long) -> Unit = { _, _ -> }
onAttachmentNeedsDownload: (DatabaseAttachment) -> Unit = { _ -> }
) {
Column(
modifier = Modifier

6
app/src/main/java/org/thoughtcrime/securesms/conversation/v2/MessageDetailsViewModel.kt
View File

@ -124,7 +124,7 @@ class MessageDetailsViewModel @Inject constructor(
if (slide.transferState == AttachmentTransferProgress.TRANSFER_PROGRESS_FAILED) {
// Restart download here (on IO thread)
(slide.asAttachment() as? DatabaseAttachment)?.let { attachment ->
onAttachmentNeedsDownload(attachment.attachmentId.rowId, state.mmsRecord.getId())
onAttachmentNeedsDownload(attachment)
}
}
@ -137,9 +137,9 @@ class MessageDetailsViewModel @Inject constructor(
}
}
fun onAttachmentNeedsDownload(attachmentId: Long, mmsId: Long) {
fun onAttachmentNeedsDownload(attachment: DatabaseAttachment) {
viewModelScope.launch(Dispatchers.IO) {
JobQueue.shared.add(AttachmentDownloadJob(attachmentId, mmsId))
JobQueue.shared.add(AttachmentDownloadJob(attachment.attachmentId.rowId, attachment.mmsId))
}
}
}

4
app/src/main/java/org/thoughtcrime/securesms/conversation/v2/components/AlbumThumbnailView.kt
View File

@ -48,7 +48,7 @@ class AlbumThumbnailView : RelativeLayout {
// region Interaction
fun calculateHitObject(event: MotionEvent, mms: MmsMessageRecord, threadRecipient: Recipient, onAttachmentNeedsDownload: (Long, Long) -> Unit) {
fun calculateHitObject(event: MotionEvent, mms: MmsMessageRecord, threadRecipient: Recipient, onAttachmentNeedsDownload: (DatabaseAttachment) -> Unit) {
val rawXInt = event.rawX.toInt()
val rawYInt = event.rawY.toInt()
val eventRect = Rect(rawXInt, rawYInt, rawXInt, rawYInt)
@ -63,7 +63,7 @@ class AlbumThumbnailView : RelativeLayout {
if (slide.transferState == AttachmentTransferProgress.TRANSFER_PROGRESS_FAILED) {
// Restart download here (on IO thread)
(slide.asAttachment() as? DatabaseAttachment)?.let { attachment ->
onAttachmentNeedsDownload(attachment.attachmentId.rowId, mms.getId())
onAttachmentNeedsDownload(attachment)
}
}
if (slide.isInProgress) return@forEach

14
app/src/main/java/org/thoughtcrime/securesms/conversation/v2/messages/VisibleMessageContentView.kt
View File

@ -66,7 +66,7 @@ class VisibleMessageContentView : ConstraintLayout {
thread: Recipient,
searchQuery: String? = null,
contactIsTrusted: Boolean = true,
onAttachmentNeedsDownload: (Long, Long) -> Unit,
onAttachmentNeedsDownload: (DatabaseAttachment) -> Unit,
suppressThumbnails: Boolean = false
) {
// Background
@ -135,19 +135,11 @@ class VisibleMessageContentView : ConstraintLayout {
if (message is MmsMessageRecord) {
message.slideDeck.asAttachments().forEach { attach ->
val dbAttachment = attach as? DatabaseAttachment ?: return@forEach
val attachmentId = dbAttachment.attachmentId.rowId
if (attach.transferState == AttachmentTransferProgress.TRANSFER_PROGRESS_PENDING
&& MessagingModuleConfiguration.shared.storage.getAttachmentUploadJob(attachmentId) == null) {
onAttachmentNeedsDownload(attachmentId, dbAttachment.mmsId)
}
onAttachmentNeedsDownload(dbAttachment)
}
message.linkPreviews.forEach { preview ->
val previewThumbnail = preview.getThumbnail().orNull() as? DatabaseAttachment ?: return@forEach
val attachmentId = previewThumbnail.attachmentId.rowId
if (previewThumbnail.transferState == AttachmentTransferProgress.TRANSFER_PROGRESS_PENDING
&& MessagingModuleConfiguration.shared.storage.getAttachmentUploadJob(attachmentId) == null) {
onAttachmentNeedsDownload(attachmentId, previewThumbnail.mmsId)
}
onAttachmentNeedsDownload(previewThumbnail)
}
}

3
app/src/main/java/org/thoughtcrime/securesms/conversation/v2/messages/VisibleMessageView.kt
View File

@ -34,6 +34,7 @@ import network.loki.messenger.databinding.ViewstubVisibleMessageMarkerContainerB
import org.session.libsession.messaging.contacts.Contact
import org.session.libsession.messaging.contacts.Contact.ContactContext
import org.session.libsession.messaging.open_groups.OpenGroupApi
import org.session.libsession.messaging.sending_receiving.attachments.DatabaseAttachment
import org.session.libsession.utilities.Address
import org.session.libsession.utilities.ViewUtil
import org.session.libsession.utilities.getColorFromAttr
@ -145,7 +146,7 @@ class VisibleMessageView : FrameLayout {
senderSessionID: String,
lastSeen: Long,
delegate: VisibleMessageViewDelegate? = null,
onAttachmentNeedsDownload: (Long, Long) -> Unit,
onAttachmentNeedsDownload: (DatabaseAttachment) -> Unit,
lastSentMessageId: Long
) {
replyDisabled = message.isOpenGroupInvitation

11
app/src/main/java/org/thoughtcrime/securesms/database/SessionJobDatabase.kt
View File

@ -3,6 +3,7 @@ package org.thoughtcrime.securesms.database
import android.content.ContentValues
import android.content.Context
import android.database.Cursor
import org.json.JSONArray
import org.session.libsession.messaging.jobs.AttachmentDownloadJob
import org.session.libsession.messaging.jobs.AttachmentUploadJob
import org.session.libsession.messaging.jobs.BackgroundGroupAddJob
@ -50,14 +51,18 @@ class SessionJobDatabase(context: Context, helper: SQLCipherOpenHelper) : Databa
databaseHelper.writableDatabase.delete(sessionJobTable, "${Companion.jobID} = ?", arrayOf( jobID ))
}
fun getAllJobs(type: String): Map<String, Job?> {
fun getAllJobs(vararg types: String): Map<String, Job?> {
val database = databaseHelper.readableDatabase
return database.getAll(sessionJobTable, "$jobType = ?", arrayOf( type )) { cursor ->
return database.getAll(
sessionJobTable,
"$jobType IN (SELECT value FROM json_each(?))", // Use json_each to bypass limitation of SQLite's IN operator binding
arrayOf( JSONArray(types).toString() )
) { cursor ->
val jobID = cursor.getString(jobID)
try {
jobID to jobFromCursor(cursor)
} catch (e: Exception) {
Log.e("Loki", "Error deserializing job of type: $type.", e)
Log.e("Loki", "Error deserializing job of type: $types.", e)
jobID to null
}
}.toMap()

4
app/src/main/java/org/thoughtcrime/securesms/database/Storage.kt
View File

@ -397,8 +397,8 @@ open class Storage(
DatabaseComponent.get(context).sessionJobDatabase().markJobAsFailedPermanently(jobId)
}
override fun getAllPendingJobs(type: String): Map<String, Job?> {
return DatabaseComponent.get(context).sessionJobDatabase().getAllJobs(type)
override fun getAllPendingJobs(vararg types: String): Map<String, Job?> {
return DatabaseComponent.get(context).sessionJobDatabase().getAllJobs(*types)
}
override fun getAttachmentUploadJob(attachmentID: Long): AttachmentUploadJob? {

44
app/src/main/java/org/thoughtcrime/securesms/util/FlowUtils.kt Normal file
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@ -0,0 +1,44 @@
package org.thoughtcrime.securesms.util
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.delay
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.asFlow
import kotlinx.coroutines.flow.channelFlow
import kotlinx.coroutines.flow.collectLatest
import kotlinx.coroutines.flow.flatMapConcat
/**
* Buffers items from the flow and emits them in batches. The batch will have size [maxItems] and
* time [timeoutMillis] limit.
*/
fun <T> Flow<T>.timedBuffer(timeoutMillis: Long, maxItems: Int): Flow<List<T>> {
return channelFlow {
val buffer = mutableListOf<T>()
var bufferBeganAt = -1L
collectLatest { value ->
if (buffer.isEmpty()) {
bufferBeganAt = System.currentTimeMillis()
}
buffer.add(value)
if (buffer.size < maxItems) {
// If the buffer is not full, wait until the time limit is reached.
// The delay here, as a suspension point, will be cancelled by `collectLatest`,
// if another item is collected while we are waiting for the `delay` to complete.
// Once the delay is cancelled, another round of `collectLatest` will be restarted.
delay((System.currentTimeMillis() + timeoutMillis - bufferBeganAt).coerceAtLeast(0L))
}
// When we reach here, it's either the buffer is full, or the timeout has been reached:
// send out the buffer and reset the state
send(buffer.toList())
buffer.clear()
}
}
}
@OptIn(ExperimentalCoroutinesApi::class)
fun <T> Flow<Iterable<T>>.flatten(): Flow<T> = flatMapConcat { it.asFlow() }

4
app/src/test/java/org/thoughtcrime/securesms/conversation/v2/ConversationViewModelTest.kt
View File

@ -23,6 +23,7 @@ import org.session.libsession.utilities.recipients.Recipient
import org.session.libsignal.utilities.Log
import org.thoughtcrime.securesms.BaseViewModelTest
import org.thoughtcrime.securesms.NoOpLogger
import org.thoughtcrime.securesms.database.MmsDatabase
import org.thoughtcrime.securesms.database.Storage
import org.thoughtcrime.securesms.database.model.MessageRecord
import org.thoughtcrime.securesms.repository.ConversationRepository
@ -32,6 +33,7 @@ class ConversationViewModelTest: BaseViewModelTest() {
private val repository = mock<ConversationRepository>()
private val storage = mock<Storage>()
private val mmsDatabase = mock<MmsDatabase>()
private val threadId = 123L
private val edKeyPair = mock<KeyPair>()
@ -39,7 +41,7 @@ class ConversationViewModelTest: BaseViewModelTest() {
private lateinit var messageRecord: MessageRecord
private val viewModel: ConversationViewModel by lazy {
ConversationViewModel(threadId, edKeyPair, repository, storage)
ConversationViewModel(threadId, edKeyPair, repository, storage, mock(), mmsDatabase)
}
@Before

52
app/src/test/java/org/thoughtcrime/securesms/util/FlowUtilsTest.kt Normal file
View File

@ -0,0 +1,52 @@
package org.thoughtcrime.securesms.util
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.flow.flow
import kotlinx.coroutines.flow.flowOf
import kotlinx.coroutines.flow.toCollection
import kotlinx.coroutines.flow.toList
import kotlinx.coroutines.test.runTest
import org.junit.Assert.assertEquals
import org.junit.Test
class FlowUtilsTest {
@Test
fun `timedBuffer should emit buffer when it's full`() = runTest {
// Given
val flow = flowOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
val timeoutMillis = 1000L
val maxItems = 5
// When
val result = flow.timedBuffer(timeoutMillis, maxItems).toList()
// Then
assertEquals(2, result.size)
assertEquals(listOf(1, 2, 3, 4, 5), result[0])
assertEquals(listOf(6, 7, 8, 9, 10), result[1])
}
@OptIn(ExperimentalCoroutinesApi::class)
@Test
fun `timedBuffer should emit buffer when timeout expires`() = runTest {
// Given
val flow = flow {
emit(1)
emit(2)
emit(3)
testScheduler.advanceTimeBy(200L)
emit(4)
}
val timeoutMillis = 100L
val maxItems = 5
// When
val result = flow.timedBuffer(timeoutMillis, maxItems).toList()
// Then
assertEquals(2, result.size)
assertEquals(listOf(1, 2, 3), result[0])
assertEquals(listOf(4), result[1])
}
}

2
libsession/src/main/java/org/session/libsession/database/StorageProtocol.kt
View File

@ -53,7 +53,7 @@ interface StorageProtocol {
fun persistJob(job: Job)
fun markJobAsSucceeded(jobId: String)
fun markJobAsFailedPermanently(jobId: String)
fun getAllPendingJobs(type: String): Map<String,Job?>
fun getAllPendingJobs(vararg types: String): Map<String,Job?>
fun getAttachmentUploadJob(attachmentID: Long): AttachmentUploadJob?
fun getMessageSendJob(messageSendJobID: String): MessageSendJob?
fun getMessageReceiveJob(messageReceiveJobID: String): Job?

48
libsession/src/main/java/org/session/libsession/messaging/jobs/AttachmentDownloadJob.kt
View File

@ -1,6 +1,8 @@
package org.session.libsession.messaging.jobs
import okhttp3.HttpUrl
import org.session.libsession.database.MessageDataProvider
import org.session.libsession.database.StorageProtocol
import org.session.libsession.messaging.MessagingModuleConfiguration
import org.session.libsession.messaging.open_groups.OpenGroupApi
import org.session.libsession.messaging.sending_receiving.attachments.AttachmentId
@ -40,6 +42,36 @@ class AttachmentDownloadJob(val attachmentID: Long, val databaseMessageID: Long)
// Keys used for database storage
private val ATTACHMENT_ID_KEY = "attachment_id"
private val TS_INCOMING_MESSAGE_ID_KEY = "tsIncoming_message_id"
/**
* Check if the attachment in the given message is eligible for download.
*
* Note that this function only checks for the eligibility of the attachment in the sense
* of whether the download is allowed, it does not check if the download has already taken
* place.
*/
fun eligibleForDownload(threadID: Long,
storage: StorageProtocol,
messageDataProvider: MessageDataProvider,
databaseMessageID: Long): Boolean {
val threadRecipient = storage.getRecipientForThread(threadID) ?: return false
// if we are the sender we are always eligible
val selfSend = messageDataProvider.isMmsOutgoing(databaseMessageID)
if (selfSend) {
return true
}
// you can't be eligible without a sender
val sender = messageDataProvider.getIndividualRecipientForMms(databaseMessageID)?.address?.serialize()
?: return false
// you can't be eligible without a contact entry
val contact = storage.getContactWithSessionID(sender) ?: return false
// we are eligible if we are receiving a group message or the contact is trusted
return threadRecipient.isGroupRecipient || contact.isTrusted
}
}
override suspend fun execute(dispatcherName: String) {
@ -88,21 +120,7 @@ class AttachmentDownloadJob(val attachmentID: Long, val databaseMessageID: Long)
return
}
val threadRecipient = storage.getRecipientForThread(threadID)
val selfSend = messageDataProvider.isMmsOutgoing(databaseMessageID)
val sender = if (selfSend) {
storage.getUserPublicKey()
} else {
messageDataProvider.getIndividualRecipientForMms(databaseMessageID)?.address?.serialize()
}
val contact = sender?.let { storage.getContactWithSessionID(it) }
if (threadRecipient == null || sender == null || (contact == null && !selfSend)) {
handleFailure(Error.NoSender, null)
return
}
if (!threadRecipient.isGroupRecipient && contact?.isTrusted != true && storage.getUserPublicKey() != sender) {
// if we aren't receiving a group message, a message from ourselves (self-send) and the contact sending is not trusted:
// do not continue, but do not fail
if (!eligibleForDownload(threadID, storage, messageDataProvider, databaseMessageID)) {
handleFailure(Error.NoSender, null)
return
}

2
libsession/src/main/java/org/session/libsession/messaging/jobs/JobQueue.kt
View File

@ -102,7 +102,7 @@ class JobQueue : JobDelegate {
execute(dispatcherName)
}
catch (e: Exception) {
Log.d(dispatcherName, "unhandledJobException: ${javaClass.simpleName} (id: $id)")
Log.d(dispatcherName, "unhandledJobException: ${javaClass.simpleName} (id: $id)", e)
this@JobQueue.handleJobFailed(this, dispatcherName, e)
}
}