Merge pull request #20 from ouchadam/support-image-messages

Support image messages

features/messenger/src/main/kotlin/app/dapk/st/messenger/DecryptingFetcher.kt

@@ -0,0 +1,64 @@
+package app.dapk.st.messenger
+
+import android.util.Base64
+import app.dapk.st.matrix.sync.RoomEvent
+import coil.bitmap.BitmapPool
+import coil.decode.DataSource
+import coil.decode.Options
+import coil.fetch.FetchResult
+import coil.fetch.Fetcher
+import coil.fetch.SourceResult
+import coil.size.Size
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okio.Buffer
+import java.security.MessageDigest
+import javax.crypto.Cipher
+import javax.crypto.spec.IvParameterSpec
+import javax.crypto.spec.SecretKeySpec
+
+private const val CRYPTO_BUFFER_SIZE = 32 * 1024
+private const val CIPHER_ALGORITHM = "AES/CTR/NoPadding"
+private const val SECRET_KEY_SPEC_ALGORITHM = "AES"
+private const val MESSAGE_DIGEST_ALGORITHM = "SHA-256"
+
+class DecryptingFetcher : Fetcher<RoomEvent.Image> {
+
+    private val http = OkHttpClient()
+
+    override suspend fun fetch(pool: BitmapPool, data: RoomEvent.Image, size: Size, options: Options): FetchResult {
+        val keys = data.imageMeta.keys!!
+        val key = Base64.decode(keys.k.replace('-', '+').replace('_', '/'), Base64.DEFAULT)
+        val initVectorBytes = Base64.decode(keys.iv, Base64.DEFAULT)
+
+        val decryptCipher = Cipher.getInstance(CIPHER_ALGORITHM)
+        val secretKeySpec = SecretKeySpec(key, SECRET_KEY_SPEC_ALGORITHM)
+        val ivParameterSpec = IvParameterSpec(initVectorBytes)
+        decryptCipher.init(Cipher.DECRYPT_MODE, secretKeySpec, ivParameterSpec)
+
+        val messageDigest = MessageDigest.getInstance(MESSAGE_DIGEST_ALGORITHM)
+
+        var read: Int
+        val d = ByteArray(CRYPTO_BUFFER_SIZE)
+        var decodedBytes: ByteArray
+
+        val response = http.newCall(Request.Builder().url(data.imageMeta.url).build()).execute()
+        val outputStream = Buffer()
+
+        response.body()?.let {
+            it.byteStream().use {
+                read = it.read(d)
+                while (read != -1) {
+                    messageDigest.update(d, 0, read)
+                    decodedBytes = decryptCipher.update(d, 0, read)
+                    outputStream.write(decodedBytes)
+                    read = it.read(d)
+                }
+            }
+        }
+        return SourceResult(outputStream, null, DataSource.NETWORK)
+    }
+
+    override fun key(data: RoomEvent.Image) = data.imageMeta.url
+
+}

features/messenger/src/main/kotlin/app/dapk/st/messenger/LocalEchoMapper.kt

@@ -22,9 +22,10 @@ internal class LocalEchoMapper(private val metaMapper: MetaMapper) {
         }
     }
 
-    fun RoomEvent.mergeWith(echo: MessageService.LocalEcho) = when (this) {
+    fun RoomEvent.mergeWith(echo: MessageService.LocalEcho): RoomEvent = when (this) {
         is RoomEvent.Message -> this.copy(meta = metaMapper.toMeta(echo))
-        is RoomEvent.Reply -> this.copy(message = this.message.copy(meta = metaMapper.toMeta(echo)))
+        is RoomEvent.Reply -> this.copy(message = this.message.mergeWith(echo))
+        is RoomEvent.Image -> this.copy(meta = metaMapper.toMeta(echo))
     }
 }
 

features/messenger/src/main/kotlin/app/dapk/st/messenger/MessengerActivity.kt

@@ -9,10 +9,10 @@ import androidx.activity.compose.setContent
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.material.Surface
 import androidx.compose.ui.Modifier
-import app.dapk.st.design.components.SmallTalkTheme
 import app.dapk.st.core.DapkActivity
 import app.dapk.st.core.module
 import app.dapk.st.core.viewModel
+import app.dapk.st.design.components.SmallTalkTheme
 import app.dapk.st.matrix.common.RoomId
 import kotlinx.parcelize.Parcelize
 

features/messenger/src/main/kotlin/app/dapk/st/messenger/MessengerScreen.kt

@@ -1,5 +1,6 @@
 package app.dapk.st.messenger
 
+import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.*
@@ -36,6 +37,7 @@ import app.dapk.st.matrix.sync.RoomEvent
 import app.dapk.st.matrix.sync.RoomEvent.Message
 import app.dapk.st.matrix.sync.RoomState
 import app.dapk.st.navigator.Navigator
+import coil.compose.rememberImagePainter
 import kotlinx.coroutines.launch
 
 @Composable
@@ -155,30 +157,33 @@ private fun ColumnScope.RoomContent(self: UserId, state: RoomState) {
             items = state.events,
             key = { _, item -> item.eventId.value },
         ) { index, item ->
-            when (item) {
+            val previousEvent = if (index != 0) state.events[index - 1] else null
-                is Message -> {
+            val wasPreviousMessageSameSender = previousEvent?.author?.id == item.author.id
-                    val wasPreviousMessageSameSender = when (val previousEvent = if (index != 0) state.events[index - 1] else null) {
+            AlignedBubble(item, self, wasPreviousMessageSameSender) {
-                        null -> false
+                when (item) {
-                        is Message -> previousEvent.author.id == item.author.id
+                    is RoomEvent.Image -> MessageImage(it as BubbleContent<RoomEvent.Image>)
-                        is RoomEvent.Reply -> previousEvent.message.author.id == item.author.id
+                    is Message -> TextBubbleContent(it as BubbleContent<RoomEvent.Message>)
-                    }
+                    is RoomEvent.Reply -> ReplyBubbleContent(it as BubbleContent<RoomEvent.Reply>)
-                    Message(self, item, wasPreviousMessageSameSender)
-                }
-                is RoomEvent.Reply -> {
-                    val wasPreviousMessageSameSender = when (val previousEvent = if (index != 0) state.events[index - 1] else null) {
-                        null -> false
-                        is Message -> previousEvent.author.id == item.message.author.id
-                        is RoomEvent.Reply -> previousEvent.message.author.id == item.message.author.id
-                    }
-                    Reply(self, item, wasPreviousMessageSameSender)
                 }
             }
         }
     }
 }
 
+private data class BubbleContent<T : RoomEvent>(
+    val shape: RoundedCornerShape,
+    val background: Color,
+    val isNotSelf: Boolean,
+    val message: T
+)
+
 @Composable
-private fun LazyItemScope.Message(self: UserId, message: Message, wasPreviousMessageSameSender: Boolean) {
+private fun <T : RoomEvent> LazyItemScope.AlignedBubble(
+    message: T,
+    self: UserId,
+    wasPreviousMessageSameSender: Boolean,
+    content: @Composable (BubbleContent<T>) -> Unit
+) {
     when (message.author.id == self) {
         true -> {
             Box(modifier = Modifier.fillParentMaxWidth(), contentAlignment = Alignment.TopEnd) {
@@ -188,7 +193,7 @@ private fun LazyItemScope.Message(self: UserId, message: Message, wasPreviousMes
                         isNotSelf = false,
                         wasPreviousMessageSameSender = wasPreviousMessageSameSender
                     ) {
-                        TextBubbleContent(selfBackgroundShape, SmallTalkTheme.extendedColors.selfBubble, false, message)
+                        content(BubbleContent(selfBackgroundShape, SmallTalkTheme.extendedColors.selfBubble, false, message))
                     }
                 }
             }
@@ -200,7 +205,7 @@ private fun LazyItemScope.Message(self: UserId, message: Message, wasPreviousMes
                     isNotSelf = true,
                     wasPreviousMessageSameSender = wasPreviousMessageSameSender
                 ) {
-                    TextBubbleContent(othersBackgroundShape, SmallTalkTheme.extendedColors.othersBubble, true, message)
+                    content(BubbleContent(othersBackgroundShape, SmallTalkTheme.extendedColors.othersBubble, true, message))
                 }
             }
         }
@@ -208,42 +213,67 @@ private fun LazyItemScope.Message(self: UserId, message: Message, wasPreviousMes
 }
 
 @Composable
-private fun LazyItemScope.Reply(self: UserId, message: RoomEvent.Reply, wasPreviousMessageSameSender: Boolean) {
+private fun MessageImage(content: BubbleContent<RoomEvent.Image>) {
-    when (message.message.author.id == self) {
+    Box(modifier = Modifier.padding(start = 6.dp)) {
-        true -> {
+        Box(
-            Box(modifier = Modifier.fillParentMaxWidth(), contentAlignment = Alignment.TopEnd) {
+            Modifier
-                Box(modifier = Modifier.fillParentMaxWidth(0.85f), contentAlignment = Alignment.TopEnd) {
+                .padding(4.dp)
-                    Bubble(
+                .clip(content.shape)
-                        message = message.message,
+                .background(content.background)
-                        isNotSelf = false,
+                .height(IntrinsicSize.Max),
-                        wasPreviousMessageSameSender = wasPreviousMessageSameSender
+        ) {
-                    ) {
+            Column(
-                        ReplyBubbleContent(selfBackgroundShape, SmallTalkTheme.extendedColors.selfBubble, false, message)
+                Modifier
-                    }
+                    .padding(8.dp)
+                    .width(IntrinsicSize.Max)
+                    .defaultMinSize(minWidth = 50.dp)
+            ) {
+                if (content.isNotSelf) {
+                    Text(
+                        fontSize = 11.sp,
+                        text = content.message.author.displayName ?: content.message.author.id.value,
+                        maxLines = 1,
+                        color = MaterialTheme.colors.onPrimary
+                    )
                 }
-            }
+
-        }
+                val width = with(LocalDensity.current) { content.message.imageMeta.width.toDp() }
-        false -> {
+                val height = with(LocalDensity.current) { content.message.imageMeta.height.toDp() }
-            Box(modifier = Modifier.fillParentMaxWidth(0.95f), contentAlignment = Alignment.TopStart) {
+                Spacer(modifier = Modifier.height(4.dp))
-                Bubble(
+                Image(
-                    message = message.message,
+                    modifier = Modifier.size(width, height),
-                    isNotSelf = true,
+                    painter = rememberImagePainter(
-                    wasPreviousMessageSameSender = wasPreviousMessageSameSender
+                        data = content.message,
-                ) {
+                        builder = { fetcher(DecryptingFetcher()) }
-                    ReplyBubbleContent(othersBackgroundShape, SmallTalkTheme.extendedColors.othersBubble, true, message)
+                    ),
+                    contentDescription = null,
+                )
+                Spacer(modifier = Modifier.height(4.dp))
+
+                Row(horizontalArrangement = Arrangement.End, verticalAlignment = Alignment.CenterVertically, modifier = Modifier.fillMaxWidth()) {
+                    val editedPrefix = if (content.message.edited) "(edited) " else null
+                    Text(
+                        fontSize = 9.sp,
+                        text = "${editedPrefix ?: ""}${content.message.time}",
+                        textAlign = TextAlign.End,
+                        color = MaterialTheme.colors.onPrimary,
+                        modifier = Modifier.wrapContentSize()
+                    )
+                    SendStatus(content.message)
                 }
             }
         }
     }
-}
 
 
+}
+
 private val selfBackgroundShape = RoundedCornerShape(12.dp, 0.dp, 12.dp, 12.dp)
 private val othersBackgroundShape = RoundedCornerShape(0.dp, 12.dp, 12.dp, 12.dp)
 
 @Composable
 private fun Bubble(
-    message: Message,
+    message: RoomEvent,
     isNotSelf: Boolean,
     wasPreviousMessageSameSender: Boolean,
     content: @Composable () -> Unit
@@ -270,13 +300,13 @@ private fun Bubble(
 }
 
 @Composable
-private fun TextBubbleContent(shape: RoundedCornerShape, background: Color, isNotSelf: Boolean, message: Message) {
+private fun TextBubbleContent(content: BubbleContent<RoomEvent.Message>) {
     Box(modifier = Modifier.padding(start = 6.dp)) {
         Box(
             Modifier
                 .padding(4.dp)
-                .clip(shape)
+                .clip(content.shape)
-                .background(background)
+                .background(content.background)
                 .height(IntrinsicSize.Max),
         ) {
             Column(
@@ -285,16 +315,16 @@ private fun TextBubbleContent(shape: RoundedCornerShape, background: Color, isNo
                     .width(IntrinsicSize.Max)
                     .defaultMinSize(minWidth = 50.dp)
             ) {
-                if (isNotSelf) {
+                if (content.isNotSelf) {
                     Text(
                         fontSize = 11.sp,
-                        text = message.author.displayName ?: message.author.id.value,
+                        text = content.message.author.displayName ?: content.message.author.id.value,
                         maxLines = 1,
                         color = MaterialTheme.colors.onPrimary
                     )
                 }
                 Text(
-                    text = message.content,
+                    text = content.message.content,
                     color = MaterialTheme.colors.onPrimary,
                     fontSize = 15.sp,
                     modifier = Modifier.wrapContentSize(),
@@ -303,15 +333,15 @@ private fun TextBubbleContent(shape: RoundedCornerShape, background: Color, isNo
 
                 Spacer(modifier = Modifier.height(2.dp))
                 Row(horizontalArrangement = Arrangement.End, verticalAlignment = Alignment.CenterVertically, modifier = Modifier.fillMaxWidth()) {
-                    val editedPrefix = if (message.edited) "(edited) " else null
+                    val editedPrefix = if (content.message.edited) "(edited) " else null
                     Text(
                         fontSize = 9.sp,
-                        text = "${editedPrefix ?: ""}${message.time}",
+                        text = "${editedPrefix ?: ""}${content.message.time}",
                         textAlign = TextAlign.End,
                         color = MaterialTheme.colors.onPrimary,
                         modifier = Modifier.wrapContentSize()
                     )
-                    SendStatus(message)
+                    SendStatus(content.message)
                 }
             }
         }
@@ -319,13 +349,13 @@ private fun TextBubbleContent(shape: RoundedCornerShape, background: Color, isNo
 }
 
 @Composable
-private fun ReplyBubbleContent(shape: RoundedCornerShape, background: Color, isNotSelf: Boolean, reply: RoomEvent.Reply) {
+private fun ReplyBubbleContent(content: BubbleContent<RoomEvent.Reply>) {
     Box(modifier = Modifier.padding(start = 6.dp)) {
         Box(
             Modifier
                 .padding(4.dp)
-                .clip(shape)
+                .clip(content.shape)
-                .background(background)
+                .background(content.background)
                 .height(IntrinsicSize.Max),
         ) {
             Column(
@@ -336,53 +366,90 @@ private fun ReplyBubbleContent(shape: RoundedCornerShape, background: Color, isN
             ) {
                 Column(
                     Modifier
-                        .background(if (isNotSelf) SmallTalkTheme.extendedColors.otherBubbleReplyBackground else SmallTalkTheme.extendedColors.selfBubbleReplyBackground)
+                        .background(if (content.isNotSelf) SmallTalkTheme.extendedColors.otherBubbleReplyBackground else SmallTalkTheme.extendedColors.selfBubbleReplyBackground)
                         .padding(4.dp)
                 ) {
-                    val replyName = if (!isNotSelf && reply.replyingToSelf) "You" else reply.replyingTo.author.displayName ?: reply.replyingTo.author.id.value
+                    val replyName = if (!content.isNotSelf && content.message.replyingToSelf) "You" else content.message.replyingTo.author.displayName
+                        ?: content.message.replyingTo.author.id.value
                     Text(
                         fontSize = 11.sp,
                         text = replyName,
                         maxLines = 1,
                         color = MaterialTheme.colors.onPrimary
                     )
-                    Text(
+                    when (val replyingTo = content.message.replyingTo) {
-                        text = reply.replyingTo.content,
+                        is Message -> {
-                        color = MaterialTheme.colors.onPrimary,
+                            Text(
-                        fontSize = 15.sp,
+                                text = replyingTo.content,
-                        modifier = Modifier.wrapContentSize(),
+                                color = MaterialTheme.colors.onPrimary,
-                        textAlign = TextAlign.Start,
+                                fontSize = 15.sp,
-                    )
+                                modifier = Modifier.wrapContentSize(),
+                                textAlign = TextAlign.Start,
+                            )
+                        }
+                        is RoomEvent.Image -> {
+                            val width = with(LocalDensity.current) { replyingTo.imageMeta.width.toDp() }
+                            val height = with(LocalDensity.current) { replyingTo.imageMeta.height.toDp() }
+                            Spacer(modifier = Modifier.height(4.dp))
+                            Image(
+                                modifier = Modifier.size(width, height),
+                                painter = rememberImagePainter(
+                                    data = replyingTo,
+                                    builder = { fetcher(DecryptingFetcher()) }
+                                ),
+                                contentDescription = null,
+                            )
+                            Spacer(modifier = Modifier.height(4.dp))
+                        }
+                    }
                 }
 
                 Spacer(modifier = Modifier.height(12.dp))
 
-                if (isNotSelf) {
+                if (content.isNotSelf) {
                     Text(
                         fontSize = 11.sp,
-                        text = reply.message.author.displayName ?: reply.message.author.id.value,
+                        text = content.message.message.author.displayName ?: content.message.message.author.id.value,
                         maxLines = 1,
                         color = MaterialTheme.colors.onPrimary
                     )
                 }
-                Text(
+                when (val message = content.message.message) {
-                    text = reply.message.content,
+                    is Message -> {
-                    color = MaterialTheme.colors.onPrimary,
+                        Text(
-                    fontSize = 15.sp,
+                            text = message.content,
-                    modifier = Modifier.wrapContentSize(),
+                            color = MaterialTheme.colors.onPrimary,
-                    textAlign = TextAlign.Start,
+                            fontSize = 15.sp,
-                )
+                            modifier = Modifier.wrapContentSize(),
+                            textAlign = TextAlign.Start,
+                        )
+                    }
+                    is RoomEvent.Image -> {
+                        val width = with(LocalDensity.current) { message.imageMeta.width.toDp() }
+                        val height = with(LocalDensity.current) { message.imageMeta.height.toDp() }
+                        Spacer(modifier = Modifier.height(4.dp))
+                        Image(
+                            modifier = Modifier.size(width, height),
+                            painter = rememberImagePainter(
+                                data = content.message,
+                                builder = { fetcher(DecryptingFetcher()) }
+                            ),
+                            contentDescription = null,
+                        )
+                        Spacer(modifier = Modifier.height(4.dp))
+                    }
+                }
 
                 Spacer(modifier = Modifier.height(2.dp))
                 Row(horizontalArrangement = Arrangement.End, verticalAlignment = Alignment.CenterVertically, modifier = Modifier.fillMaxWidth()) {
                     Text(
                         fontSize = 9.sp,
-                        text = reply.time,
+                        text = content.message.time,
                         textAlign = TextAlign.End,
                         color = MaterialTheme.colors.onPrimary,
                         modifier = Modifier.wrapContentSize()
                     )
-                    SendStatus(reply.message)
+                    SendStatus(content.message.message)
                 }
             }
         }
@@ -391,7 +458,7 @@ private fun ReplyBubbleContent(shape: RoundedCornerShape, background: Color, isN
 
 
 @Composable
-private fun RowScope.SendStatus(message: Message) {
+private fun RowScope.SendStatus(message: RoomEvent) {
     when (val meta = message.meta) {
         MessageMeta.FromServer -> {
             // last message is self

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/RoomState.kt

@@ -4,7 +4,6 @@ import app.dapk.st.core.extensions.unsafeLazy
 import app.dapk.st.matrix.common.*
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.Transient
 import java.time.Instant
 import java.time.ZoneId
 import java.time.ZonedDateTime
@@ -23,6 +22,8 @@ sealed class RoomEvent {
 
     abstract val eventId: EventId
     abstract val utcTimestamp: Long
+    abstract val author: RoomMember
+    abstract val meta: MessageMeta
 
     @Serializable
     @SerialName("message")
@@ -30,8 +31,8 @@ sealed class RoomEvent {
         @SerialName("event_id") override val eventId: EventId,
         @SerialName("timestamp") override val utcTimestamp: Long,
         @SerialName("content") val content: String,
-        @SerialName("author") val author: RoomMember,
+        @SerialName("author") override val author: RoomMember,
-        @SerialName("meta") val meta: MessageMeta,
+        @SerialName("meta") override val meta: MessageMeta,
         @SerialName("encrypted_content") val encryptedContent: MegOlmV1? = null,
         @SerialName("edited") val edited: Boolean = false,
     ) : RoomEvent() {
@@ -44,7 +45,6 @@ sealed class RoomEvent {
             @SerialName("session_id") val sessionId: SessionId,
         )
 
-        @Transient
         val time: String by unsafeLazy {
             val instant = Instant.ofEpochMilli(utcTimestamp)
             ZonedDateTime.ofInstant(instant, DEFAULT_ZONE).toLocalTime().format(MESSAGE_TIME_FORMAT)
@@ -54,22 +54,59 @@ sealed class RoomEvent {
     @Serializable
     @SerialName("reply")
     data class Reply(
-        @SerialName("message") val message: Message,
+        @SerialName("message") val message: RoomEvent,
-        @SerialName("in_reply_to") val replyingTo: Message,
+        @SerialName("in_reply_to") val replyingTo: RoomEvent,
     ) : RoomEvent() {
 
         override val eventId: EventId = message.eventId
         override val utcTimestamp: Long = message.utcTimestamp
+        override val author: RoomMember = message.author
+        override val meta: MessageMeta = message.meta
 
         val replyingToSelf = replyingTo.author == message.author
 
-        @Transient
         val time: String by unsafeLazy {
             val instant = Instant.ofEpochMilli(utcTimestamp)
             ZonedDateTime.ofInstant(instant, DEFAULT_ZONE).toLocalTime().format(MESSAGE_TIME_FORMAT)
         }
     }
 
+    @Serializable
+    @SerialName("image")
+    data class Image(
+        @SerialName("event_id") override val eventId: EventId,
+        @SerialName("timestamp") override val utcTimestamp: Long,
+        @SerialName("image_meta") val imageMeta: ImageMeta,
+        @SerialName("author") override val author: RoomMember,
+        @SerialName("meta") override val meta: MessageMeta,
+        @SerialName("encrypted_content") val encryptedContent: Message.MegOlmV1? = null,
+        @SerialName("edited") val edited: Boolean = false,
+    ) : RoomEvent() {
+
+        val time: String by unsafeLazy {
+            val instant = Instant.ofEpochMilli(utcTimestamp)
+            ZonedDateTime.ofInstant(instant, DEFAULT_ZONE).toLocalTime().format(MESSAGE_TIME_FORMAT)
+        }
+
+        @Serializable
+        data class ImageMeta(
+            @SerialName("width") val width: Int,
+            @SerialName("height") val height: Int,
+            @SerialName("url") val url: String,
+            @SerialName("keys") val keys: Keys?,
+        ) {
+
+            @Serializable
+            data class Keys(
+                @SerialName("k") val k: String,
+                @SerialName("iv") val iv: String,
+                @SerialName("v") val v: String,
+                @SerialName("hashes") val hashes: Map<String, String>,
+            )
+
+        }
+    }
+
 }
 
 @Serializable

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/DefaultSyncService.kt

@@ -35,7 +35,7 @@ internal class DefaultSyncService(
     json: Json,
     oneTimeKeyProducer: MaybeCreateMoreKeys,
     scope: CoroutineScope,
-    credentialsStore: CredentialsStore,
+    private val credentialsStore: CredentialsStore,
     roomMembersService: RoomMembersService,
     logger: MatrixLogger,
     errorTracker: ErrorTracker,
@@ -57,7 +57,7 @@ internal class DefaultSyncService(
                 roomMembersService,
                 roomDataSource,
                 TimelineEventsProcessor(
-                    RoomEventCreator(roomMembersService, logger, errorTracker),
+                    RoomEventCreator(roomMembersService, errorTracker, RoomEventFactory(roomMembersService)),
                     roomEventsDecrypter,
                     eventDecrypter,
                     EventLookupUseCase(roomStore)
@@ -69,6 +69,7 @@ internal class DefaultSyncService(
             roomRefresher,
             roomDataSource,
             logger,
+            errorTracker,
             coroutineDispatchers,
         )
         SyncUseCase(
@@ -114,7 +115,7 @@ internal class DefaultSyncService(
         coroutineDispatchers.withIoContext {
             roomIds.map {
                 async {
-                    roomRefresher.refreshRoomContent(it)?.also {
+                    roomRefresher.refreshRoomContent(it, credentialsStore.credentials()!!)?.also {
                         overviewStore.persist(listOf(it.roomOverview))
                     }
                 }

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/request/ApiSyncResponse.kt

@@ -445,13 +445,55 @@ internal sealed class ApiTimelineEvent {
         @SerialName("st.decryption_status") val decryptionStatus: DecryptionStatus? = null
     ) : ApiTimelineEvent() {
 
-        @Serializable
+        @Serializable(with = ApiTimelineMessageContentDeserializer::class)
-        internal data class Content(
+        internal sealed interface Content {
-            @SerialName("body") val body: String? = null,
+            val relation: Relation?
-            @SerialName("formatted_body") val formattedBody: String? = null,
+
-            @SerialName("msgtype") val type: String? = null,
+            @Serializable
-            @SerialName("m.relates_to") val relation: Relation? = null,
+            data class Text(
-        )
+                @SerialName("body") val body: String? = null,
+                @SerialName("formatted_body") val formattedBody: String? = null,
+                @SerialName("m.relates_to") override val relation: Relation? = null,
+                @SerialName("msgtype") val messageType: String = "m.text",
+            ) : Content
+
+            @Serializable
+            data class Image(
+                @SerialName("url") val url: MxUrl? = null,
+                @SerialName("file") val file: File? = null,
+                @SerialName("info") val info: Info,
+                @SerialName("m.relates_to") override val relation: Relation? = null,
+                @SerialName("msgtype") val messageType: String = "m.image",
+            ) : Content {
+
+                @Serializable
+                data class File(
+                    @SerialName("url") val url: MxUrl,
+                    @SerialName("iv") val iv: String,
+                    @SerialName("v") val v: String,
+                    @SerialName("hashes") val hashes: Map<String, String>,
+                    @SerialName("key") val key: Key,
+                ) {
+
+                    @Serializable
+                    data class Key(
+                        @SerialName("k") val k: String,
+                    )
+
+                }
+
+                @Serializable
+                internal data class Info(
+                    @SerialName("h") val height: Int,
+                    @SerialName("w") val width: Int,
+                )
+            }
+
+            @Serializable
+            object Ignored : Content {
+                override val relation: Relation? = null
+            }
+        }
 
         @Serializable
         data class Relation(
@@ -512,3 +554,28 @@ internal object EncryptedContentDeserializer : KSerializer<ApiEncryptedContent>
     override fun serialize(encoder: Encoder, value: ApiEncryptedContent) = TODO("Not yet implemented")
 
 }
+
+internal object ApiTimelineMessageContentDeserializer : KSerializer<ApiTimelineEvent.TimelineMessage.Content> {
+
+    override val descriptor: SerialDescriptor = buildClassSerialDescriptor("messageContent")
+
+    override fun deserialize(decoder: Decoder): ApiTimelineEvent.TimelineMessage.Content {
+        require(decoder is JsonDecoder)
+        val element = decoder.decodeJsonElement()
+        return when (element.jsonObject["msgtype"]?.jsonPrimitive?.content) {
+            "m.text" -> ApiTimelineEvent.TimelineMessage.Content.Text.serializer().deserialize(decoder)
+            "m.image" -> ApiTimelineEvent.TimelineMessage.Content.Image.serializer().deserialize(decoder)
+            else -> {
+                println(element)
+                ApiTimelineEvent.TimelineMessage.Content.Ignored
+            }
+        }
+    }
+
+    override fun serialize(encoder: Encoder, value: ApiTimelineEvent.TimelineMessage.Content) = when (value) {
+        ApiTimelineEvent.TimelineMessage.Content.Ignored -> {}
+        is ApiTimelineEvent.TimelineMessage.Content.Image -> ApiTimelineEvent.TimelineMessage.Content.Image.serializer().serialize(encoder, value)
+        is ApiTimelineEvent.TimelineMessage.Content.Text -> ApiTimelineEvent.TimelineMessage.Content.Text.serializer().serialize(encoder, value)
+    }
+
+}

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/room/RoomEventsDecrypter.kt

@@ -2,6 +2,7 @@ package app.dapk.st.matrix.sync.internal.room
 
 import app.dapk.st.matrix.common.*
 import app.dapk.st.matrix.sync.RoomEvent
+import app.dapk.st.matrix.sync.internal.request.ApiTimelineEvent
 import app.dapk.st.matrix.sync.internal.request.DecryptedContent
 import kotlinx.serialization.json.Json
 
@@ -11,13 +12,38 @@ internal class RoomEventsDecrypter(
     private val logger: MatrixLogger,
 ) {
 
-    suspend fun decryptRoomEvents(events: List<RoomEvent>) = events.map { event ->
+    suspend fun decryptRoomEvents(userCredentials: UserCredentials, events: List<RoomEvent>) = events.map { event ->
-        when (event) {
+        decryptEvent(event, userCredentials)
-            is RoomEvent.Message -> event.decrypt()
+    }
-            is RoomEvent.Reply -> RoomEvent.Reply(
+
-                message = event.message.decrypt(),
+    private suspend fun decryptEvent(event: RoomEvent, userCredentials: UserCredentials): RoomEvent = when (event) {
-                replyingTo = event.replyingTo.decrypt(),
+        is RoomEvent.Message -> event.decrypt()
-            )
+        is RoomEvent.Reply -> RoomEvent.Reply(
+            message = decryptEvent(event.message, userCredentials),
+            replyingTo = decryptEvent(event.replyingTo, userCredentials),
+        )
+        is RoomEvent.Image -> event.decrypt(userCredentials)
+    }
+
+    private suspend fun RoomEvent.Image.decrypt(userCredentials: UserCredentials) = when (this.encryptedContent) {
+        null -> this
+        else -> when (val result = messageDecrypter.decrypt(this.encryptedContent.toModel())) {
+            is DecryptionResult.Failed -> this.also { logger.crypto("Failed to decrypt ${it.eventId}") }
+            is DecryptionResult.Success -> when (val model = result.payload.toModel()) {
+                DecryptedContent.Ignored -> this
+                is DecryptedContent.TimelineText -> {
+                    val content = model.content as ApiTimelineEvent.TimelineMessage.Content.Image
+                    this.copy(
+                        imageMeta = RoomEvent.Image.ImageMeta(
+                            width = content.info.width,
+                            height = content.info.height,
+                            url = content.file?.url?.convertMxUrToUrl(userCredentials.homeServer) ?: content.url!!.convertMxUrToUrl(userCredentials.homeServer),
+                            keys = content.file?.let { RoomEvent.Image.ImageMeta.Keys(it.key.k, it.iv, it.v, it.hashes) }
+                        ),
+                        encryptedContent = null,
+                    )
+                }
+            }
         }
     }
 
@@ -35,10 +61,9 @@ internal class RoomEventsDecrypter(
     private fun JsonString.toModel() = json.decodeFromString(DecryptedContent.serializer(), this.value)
 
     private fun RoomEvent.Message.copyWithDecryptedContent(decryptedContent: DecryptedContent.TimelineText) = this.copy(
-        content = decryptedContent.content.body ?: "",
+        content = (decryptedContent.content as ApiTimelineEvent.TimelineMessage.Content.Text).body ?: "",
         encryptedContent = null
     )
-
 }
 
 private fun RoomEvent.Message.MegOlmV1.toModel() = EncryptedMessageContent.MegOlmV1(

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/room/SyncEventDecrypter.kt

@@ -39,7 +39,11 @@ internal class SyncEventDecrypter(
                     is DecryptedContent.TimelineText -> ApiTimelineEvent.TimelineMessage(
                         event.eventId,
                         event.senderId,
-                        it.content.copy(relation = relation),
+                        when (it.content) {
+                            is ApiTimelineEvent.TimelineMessage.Content.Image -> it.content.copy(relation = relation)
+                            is ApiTimelineEvent.TimelineMessage.Content.Text -> it.content.copy(relation = relation)
+                            ApiTimelineEvent.TimelineMessage.Content.Ignored -> it.content
+                        },
                         event.utcTimestamp,
                     ).also { logger.matrixLog("decrypted to timeline text: $it") }
                     DecryptedContent.Ignored -> event

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/RoomEventCreator.kt

@@ -4,9 +4,8 @@ import app.dapk.st.core.extensions.ErrorTracker
 import app.dapk.st.core.extensions.ifOrNull
 import app.dapk.st.core.extensions.nullAndTrack
 import app.dapk.st.matrix.common.EventId
-import app.dapk.st.matrix.common.MatrixLogger
 import app.dapk.st.matrix.common.RoomId
-import app.dapk.st.matrix.common.matrixLog
+import app.dapk.st.matrix.common.UserCredentials
 import app.dapk.st.matrix.sync.MessageMeta
 import app.dapk.st.matrix.sync.RoomEvent
 import app.dapk.st.matrix.sync.RoomMembersService
@@ -18,8 +17,8 @@ private typealias Lookup = suspend (EventId) -> LookupResult
 
 internal class RoomEventCreator(
     private val roomMembersService: RoomMembersService,
-    private val logger: MatrixLogger,
     private val errorTracker: ErrorTracker,
+    private val roomEventFactory: RoomEventFactory,
 ) {
 
     suspend fun ApiTimelineEvent.Encrypted.toRoomEvent(roomId: RoomId): RoomEvent? {
@@ -44,82 +43,122 @@ internal class RoomEventCreator(
         }
     }
 
-    suspend fun ApiTimelineEvent.TimelineMessage.toRoomEvent(roomId: RoomId, lookup: Lookup): RoomEvent? {
+    suspend fun ApiTimelineEvent.TimelineMessage.toRoomEvent(userCredentials: UserCredentials, roomId: RoomId, lookup: Lookup): RoomEvent? {
+        return TimelineEventMapper(userCredentials, roomId, roomEventFactory).mapToRoomEvent(this, lookup)
+    }
+}
+
+internal class TimelineEventMapper(
+    private val userCredentials: UserCredentials,
+    private val roomId: RoomId,
+    private val roomEventFactory: RoomEventFactory,
+) {
+
+    suspend fun mapToRoomEvent(event: ApiTimelineEvent.TimelineMessage, lookup: Lookup): RoomEvent? {
         return when {
-            this.isEdit() -> handleEdit(roomId, this.content.relation!!.eventId!!, lookup)
+            event.content == ApiTimelineEvent.TimelineMessage.Content.Ignored -> null
-            this.isReply() -> handleReply(roomId, lookup)
+            event.isEdit() -> event.handleEdit(editedEventId = event.content.relation!!.eventId!!, lookup)
-            else -> this.toMessage(roomId)
+            event.isReply() -> event.handleReply(replyToId = event.content.relation!!.inReplyTo!!.eventId, lookup)
+            else -> roomEventFactory.mapToRoomEvent(event)
         }
     }
 
-    private suspend fun ApiTimelineEvent.TimelineMessage.handleEdit(roomId: RoomId, editedEventId: EventId, lookup: Lookup): RoomEvent? {
+    private suspend fun ApiTimelineEvent.TimelineMessage.handleReply(replyToId: EventId, lookup: Lookup): RoomEvent {
-        return lookup(editedEventId).fold(
+        val relationEvent = lookup(replyToId).fold(
-            onApiTimelineEvent = {
+            onApiTimelineEvent = { it.toTextMessage() },
-                ifOrNull(this.utcTimestamp > it.utcTimestamp) {
-                    it.toMessage(
-                        roomId,
-                        utcTimestamp = this.utcTimestamp,
-                        content = this.content.body?.removePrefix(" * ")?.trim() ?: "redacted",
-                        edited = true,
-                    )
-                }
-            },
-            onRoomEvent = {
-                ifOrNull(this.utcTimestamp > it.utcTimestamp) {
-                    when (it) {
-                        is RoomEvent.Message -> it.edited(this)
-                        is RoomEvent.Reply -> it.copy(message = it.message.edited(this))
-                    }
-                }
-            },
-            onEmpty = { this.toMessage(roomId, edited = true) }
-        )
-    }
-
-    private fun RoomEvent.Message.edited(edit: ApiTimelineEvent.TimelineMessage) = this.copy(
-        content = edit.content.body?.removePrefix(" * ")?.trim() ?: "redacted",
-        utcTimestamp = edit.utcTimestamp,
-        edited = true,
-    )
-
-    private suspend fun ApiTimelineEvent.TimelineMessage.handleReply(roomId: RoomId, lookup: Lookup): RoomEvent {
-        val replyTo = this.content.relation!!.inReplyTo!!
-
-        val relationEvent = lookup(replyTo.eventId).fold(
-            onApiTimelineEvent = { it.toMessage(roomId) },
             onRoomEvent = { it },
             onEmpty = { null }
         )
 
-        logger.matrixLog("found relation: $relationEvent")
-
         return when (relationEvent) {
-            null -> this.toMessage(roomId)
+            null -> when (this.content) {
+                is ApiTimelineEvent.TimelineMessage.Content.Image -> this.toImageMessage()
+                is ApiTimelineEvent.TimelineMessage.Content.Text -> this.toFallbackTextMessage()
+                ApiTimelineEvent.TimelineMessage.Content.Ignored -> throw IllegalStateException()
+            }
             else -> {
                 RoomEvent.Reply(
-                    message = this.toMessage(roomId, content = this.content.formattedBody?.stripTags() ?: "redacted"),
+                    message = roomEventFactory.mapToRoomEvent(this),
                     replyingTo = when (relationEvent) {
                         is RoomEvent.Message -> relationEvent
                         is RoomEvent.Reply -> relationEvent.message
+                        is RoomEvent.Image -> relationEvent
                     }
                 )
             }
         }
     }
 
-    private suspend fun ApiTimelineEvent.TimelineMessage.toMessage(
+    private suspend fun ApiTimelineEvent.TimelineMessage.toFallbackTextMessage() = this.toTextMessage(content = this.asTextContent().body ?: "redacted")
-        roomId: RoomId,
+
-        content: String = this.content.body ?: "redacted",
+    private suspend fun ApiTimelineEvent.TimelineMessage.handleEdit(editedEventId: EventId, lookup: Lookup): RoomEvent? {
+        return lookup(editedEventId).fold(
+            onApiTimelineEvent = { editApiEvent(original = it, incomingEdit = this) },
+            onRoomEvent = { editRoomEvent(original = it, incomingEdit = this) },
+            onEmpty = { this.toTextMessage(edited = true) }
+        )
+    }
+
+    private fun editRoomEvent(original: RoomEvent, incomingEdit: ApiTimelineEvent.TimelineMessage): RoomEvent? {
+        return ifOrNull(incomingEdit.utcTimestamp > original.utcTimestamp) {
+            when (original) {
+                is RoomEvent.Message -> original.edited(incomingEdit)
+                is RoomEvent.Reply -> original.copy(
+                    message = when (original.message) {
+                        is RoomEvent.Image -> original.message
+                        is RoomEvent.Message -> original.message.edited(incomingEdit)
+                        is RoomEvent.Reply -> original.message
+                    }
+                )
+                is RoomEvent.Image -> {
+                    // can't edit images
+                    null
+                }
+            }
+        }
+    }
+
+    private suspend fun editApiEvent(original: ApiTimelineEvent.TimelineMessage, incomingEdit: ApiTimelineEvent.TimelineMessage): RoomEvent? {
+        return ifOrNull(incomingEdit.utcTimestamp > original.utcTimestamp) {
+            when (original.content) {
+                is ApiTimelineEvent.TimelineMessage.Content.Image -> original.toImageMessage(
+                    utcTimestamp = incomingEdit.utcTimestamp,
+                    edited = true,
+                )
+                is ApiTimelineEvent.TimelineMessage.Content.Text -> original.toTextMessage(
+                    utcTimestamp = incomingEdit.utcTimestamp,
+                    content = incomingEdit.asTextContent().body?.removePrefix(" * ")?.trim() ?: "redacted",
+                    edited = true,
+                )
+                ApiTimelineEvent.TimelineMessage.Content.Ignored -> null
+            }
+        }
+    }
+
+    private fun RoomEvent.Message.edited(edit: ApiTimelineEvent.TimelineMessage) = this.copy(
+        content = edit.asTextContent().body?.removePrefix(" * ")?.trim() ?: "redacted",
+        utcTimestamp = edit.utcTimestamp,
+        edited = true,
+    )
+
+    private suspend fun RoomEventFactory.mapToRoomEvent(source: ApiTimelineEvent.TimelineMessage): RoomEvent {
+        return when (source.content) {
+            is ApiTimelineEvent.TimelineMessage.Content.Image -> source.toImageMessage(userCredentials, roomId)
+            is ApiTimelineEvent.TimelineMessage.Content.Text -> source.toTextMessage(roomId)
+            ApiTimelineEvent.TimelineMessage.Content.Ignored -> throw IllegalStateException()
+        }
+    }
+
+    private suspend fun ApiTimelineEvent.TimelineMessage.toTextMessage(
+        content: String = this.asTextContent().formattedBody?.stripTags() ?: this.asTextContent().body ?: "redacted",
         edited: Boolean = false,
         utcTimestamp: Long = this.utcTimestamp,
-    ) = RoomEvent.Message(
+    ) = with(roomEventFactory) { toTextMessage(roomId, content, edited, utcTimestamp) }
-        eventId = this.id,
+
-        content = content,
+    private suspend fun ApiTimelineEvent.TimelineMessage.toImageMessage(
-        author = roomMembersService.find(roomId, this.senderId)!!,
+        edited: Boolean = false,
-        utcTimestamp = utcTimestamp,
+        utcTimestamp: Long = this.utcTimestamp,
-        meta = MessageMeta.FromServer,
+    ) = with(roomEventFactory) { toImageMessage(userCredentials, roomId, edited, utcTimestamp) }
-        edited = edited,
-    )
 
 }
 
@@ -128,5 +167,6 @@ private fun String.stripTags() = this.substring(this.indexOf("</mx-reply>") + "<
     .replace("<em>", "")
     .replace("</em>", "")
 
-private fun ApiTimelineEvent.TimelineMessage.isEdit() = this.content.relation?.relationType == "m.replace" && this.content.relation.eventId != null
+private fun ApiTimelineEvent.TimelineMessage.isEdit() = this.content.relation?.relationType == "m.replace" && this.content.relation?.eventId != null
-private fun ApiTimelineEvent.TimelineMessage.isReply() = this.content.relation?.inReplyTo != null
+private fun ApiTimelineEvent.TimelineMessage.isReply() = this.content.relation?.inReplyTo != null
+private fun ApiTimelineEvent.TimelineMessage.asTextContent() = this.content as ApiTimelineEvent.TimelineMessage.Content.Text

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/RoomEventFactory.kt

@@ -0,0 +1,61 @@
+package app.dapk.st.matrix.sync.internal.sync
+
+import app.dapk.st.matrix.common.RoomId
+import app.dapk.st.matrix.common.UserCredentials
+import app.dapk.st.matrix.common.convertMxUrToUrl
+import app.dapk.st.matrix.sync.MessageMeta
+import app.dapk.st.matrix.sync.RoomEvent
+import app.dapk.st.matrix.sync.RoomMembersService
+import app.dapk.st.matrix.sync.find
+import app.dapk.st.matrix.sync.internal.request.ApiTimelineEvent
+
+internal class RoomEventFactory(
+    private val roomMembersService: RoomMembersService
+) {
+
+    suspend fun ApiTimelineEvent.TimelineMessage.toTextMessage(
+        roomId: RoomId,
+        content: String = this.asTextContent().formattedBody?.stripTags() ?: this.asTextContent().body ?: "redacted",
+        edited: Boolean = false,
+        utcTimestamp: Long = this.utcTimestamp,
+    ) = RoomEvent.Message(
+        eventId = this.id,
+        content = content,
+        author = roomMembersService.find(roomId, this.senderId)!!,
+        utcTimestamp = utcTimestamp,
+        meta = MessageMeta.FromServer,
+        edited = edited,
+    )
+
+    suspend fun ApiTimelineEvent.TimelineMessage.toImageMessage(
+        userCredentials: UserCredentials,
+        roomId: RoomId,
+        edited: Boolean = false,
+        utcTimestamp: Long = this.utcTimestamp,
+        imageMeta: RoomEvent.Image.ImageMeta = this.readImageMeta(userCredentials)
+    ) = RoomEvent.Image(
+        eventId = this.id,
+        imageMeta = imageMeta,
+        author = roomMembersService.find(roomId, this.senderId)!!,
+        utcTimestamp = utcTimestamp,
+        meta = MessageMeta.FromServer,
+        edited = edited,
+    )
+
+    private fun ApiTimelineEvent.TimelineMessage.readImageMeta(userCredentials: UserCredentials): RoomEvent.Image.ImageMeta {
+        val content = this.content as ApiTimelineEvent.TimelineMessage.Content.Image
+        return RoomEvent.Image.ImageMeta(
+            content.info.width,
+            content.info.height,
+            content.file?.url?.convertMxUrToUrl(userCredentials.homeServer) ?: content.url!!.convertMxUrToUrl(userCredentials.homeServer),
+            keys = content.file?.let { RoomEvent.Image.ImageMeta.Keys(it.key.k, it.iv, it.v, it.hashes) }
+        )
+    }
+}
+
+private fun String.stripTags() = this.substring(this.indexOf("</mx-reply>") + "</mx-reply>".length)
+    .trim()
+    .replace("<em>", "")
+    .replace("</em>", "")
+
+private fun ApiTimelineEvent.TimelineMessage.asTextContent() = this.content as ApiTimelineEvent.TimelineMessage.Content.Text

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/RoomRefresher.kt

@@ -1,9 +1,6 @@
 package app.dapk.st.matrix.sync.internal.sync
 
-import app.dapk.st.matrix.common.MatrixLogTag
+import app.dapk.st.matrix.common.*
-import app.dapk.st.matrix.common.MatrixLogger
-import app.dapk.st.matrix.common.RoomId
-import app.dapk.st.matrix.common.matrixLog
 import app.dapk.st.matrix.sync.RoomEvent
 import app.dapk.st.matrix.sync.RoomState
 import app.dapk.st.matrix.sync.internal.room.RoomEventsDecrypter
@@ -14,13 +11,13 @@ internal class RoomRefresher(
     private val logger: MatrixLogger
 ) {
 
-    suspend fun refreshRoomContent(roomId: RoomId): RoomState? {
+    suspend fun refreshRoomContent(roomId: RoomId, userCredentials: UserCredentials): RoomState? {
         logger.matrixLog(MatrixLogTag.SYNC, "reducing side effect: $roomId")
         return when (val previousState = roomDataSource.read(roomId)) {
             null -> null.also { logger.matrixLog(MatrixLogTag.SYNC, "no previous state to update") }
             else -> {
                 logger.matrixLog(MatrixLogTag.SYNC, "previous state updated")
-                val decryptedEvents = previousState.events.decryptEvents()
+                val decryptedEvents = previousState.events.decryptEvents(userCredentials)
                 val lastMessage = decryptedEvents.sortedByDescending { it.utcTimestamp }.findLastMessage()
 
                 previousState.copy(events = decryptedEvents, roomOverview = previousState.roomOverview.copy(lastMessage = lastMessage)).also {
@@ -30,6 +27,6 @@ internal class RoomRefresher(
         }
     }
 
-    private suspend fun List<RoomEvent>.decryptEvents() = roomEventsDecrypter.decryptRoomEvents(this)
+    private suspend fun List<RoomEvent>.decryptEvents(userCredentials: UserCredentials) = roomEventsDecrypter.decryptRoomEvents(userCredentials, this)
 
 }

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/SyncReducer.kt

@@ -1,6 +1,7 @@
 package app.dapk.st.matrix.sync.internal.sync
 
 import app.dapk.st.core.CoroutineDispatchers
+import app.dapk.st.core.extensions.ErrorTracker
 import app.dapk.st.core.withIoContextAsync
 import app.dapk.st.matrix.common.*
 import app.dapk.st.matrix.common.MatrixLogTag.SYNC
@@ -16,6 +17,7 @@ internal class SyncReducer(
     private val roomRefresher: RoomRefresher,
     private val roomDataSource: RoomDataSource,
     private val logger: MatrixLogger,
+    private val errorTracker: ErrorTracker,
     private val coroutineDispatchers: CoroutineDispatchers,
 ) {
 
@@ -48,14 +50,14 @@ internal class SyncReducer(
                         isInitialSync = isInitialSync
                     )
                 }
-                    .onFailure { logger.matrixLog(SYNC, "failed to reduce: $roomId, skipping") }
+                    .onFailure { errorTracker.track(it, "failed to reduce: $roomId, skipping") }
                     .getOrNull()
             }
         } ?: emptyList()
 
         val roomsWithSideEffects = sideEffects.roomsToRefresh(alreadyHandledRooms = apiUpdatedRooms?.keys ?: emptySet()).map { roomId ->
             coroutineDispatchers.withIoContextAsync {
-                roomRefresher.refreshRoomContent(roomId)
+                roomRefresher.refreshRoomContent(roomId, userCredentials)
             }
         }
 

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/TimelineEventsProcessor.kt

@@ -1,5 +1,6 @@
 package app.dapk.st.matrix.sync.internal.sync
 
+import app.dapk.st.matrix.common.UserCredentials
 import app.dapk.st.matrix.sync.RoomEvent
 import app.dapk.st.matrix.sync.internal.request.ApiTimelineEvent
 import app.dapk.st.matrix.sync.internal.room.RoomEventsDecrypter
@@ -22,13 +23,13 @@ internal class TimelineEventsProcessor(
 
     private suspend fun processNewEvents(roomToProcess: RoomToProcess, previousEvents: List<RoomEvent>): List<RoomEvent> {
         val decryptedTimeline = roomToProcess.apiSyncRoom.timeline.apiTimelineEvents.decryptEvents()
-        val decryptedPreviousEvents = previousEvents.decryptEvents()
+        val decryptedPreviousEvents = previousEvents.decryptEvents(roomToProcess.userCredentials)
 
         val newEvents = with(roomEventCreator) {
             decryptedTimeline.value.mapNotNull { event ->
                 val roomEvent = when (event) {
                     is ApiTimelineEvent.Encrypted -> event.toRoomEvent(roomToProcess.roomId)
-                    is ApiTimelineEvent.TimelineMessage -> event.toRoomEvent(roomToProcess.roomId) { eventId ->
+                    is ApiTimelineEvent.TimelineMessage -> event.toRoomEvent(roomToProcess.userCredentials, roomToProcess.roomId) { eventId ->
                         eventLookupUseCase.lookup(eventId, decryptedTimeline, decryptedPreviousEvents)
                     }
                     is ApiTimelineEvent.Encryption -> null
@@ -46,7 +47,8 @@ internal class TimelineEventsProcessor(
     }
 
     private suspend fun List<ApiTimelineEvent>.decryptEvents() = DecryptedTimeline(eventDecrypter.decryptTimelineEvents(this))
-    private suspend fun List<RoomEvent>.decryptEvents() = DecryptedRoomEvents(roomEventsDecrypter.decryptRoomEvents(this))
+    private suspend fun List<RoomEvent>.decryptEvents(userCredentials: UserCredentials) =
+        DecryptedRoomEvents(roomEventsDecrypter.decryptRoomEvents(userCredentials, this))
 
 }
 

matrix/services/sync/src/main/kotlin/app/dapk/st/matrix/sync/internal/sync/UnreadEventsUseCase.kt

@@ -42,6 +42,7 @@ internal class UnreadEventsUseCase(
                     when (it) {
                         is RoomEvent.Message -> it.author.id == selfId
                         is RoomEvent.Reply -> it.message.author.id == selfId
+                        is RoomEvent.Image -> it.author.id == selfId
                     }
                 }.map { it.eventId }
                 roomStore.insertUnread(overview.roomId, eventsFromOthers)

matrix/services/sync/src/test/kotlin/app/dapk/st/matrix/sync/internal/room/RoomEventsDecrypterTest.kt

@@ -21,6 +21,7 @@ private val AN_ENCRYPTED_ROOM_REPLY = aRoomReplyMessageEvent(
     replyingTo = AN_ENCRYPTED_ROOM_MESSAGE.copy(eventId = anEventId("other-event"))
 )
 private val A_DECRYPTED_CONTENT = DecryptedContent.TimelineText(aTimelineTextEventContent(body = A_DECRYPTED_MESSAGE_CONTENT))
+private val A_USER_CREDENTIALS = aUserCredentials()
 
 class RoomEventsDecrypterTest {
 
@@ -35,7 +36,7 @@ class RoomEventsDecrypterTest {
     @Test
     fun `given clear message event, when decrypting, then does nothing`() = runTest {
         val aClearMessageEvent = aRoomMessageEvent(encryptedContent = null)
-        val result = roomEventsDecrypter.decryptRoomEvents(listOf(aClearMessageEvent))
+        val result = roomEventsDecrypter.decryptRoomEvents(A_USER_CREDENTIALS, listOf(aClearMessageEvent))
 
         result shouldBeEqualTo listOf(aClearMessageEvent)
     }
@@ -44,7 +45,7 @@ class RoomEventsDecrypterTest {
     fun `given encrypted message event, when decrypting, then applies decrypted body and removes encrypted content`() = runTest {
         givenEncryptedMessage(AN_ENCRYPTED_ROOM_MESSAGE, decryptsTo = A_DECRYPTED_CONTENT)
 
-        val result = roomEventsDecrypter.decryptRoomEvents(listOf(AN_ENCRYPTED_ROOM_MESSAGE))
+        val result = roomEventsDecrypter.decryptRoomEvents(A_USER_CREDENTIALS, listOf(AN_ENCRYPTED_ROOM_MESSAGE))
 
         result shouldBeEqualTo listOf(AN_ENCRYPTED_ROOM_MESSAGE.copy(content = A_DECRYPTED_MESSAGE_CONTENT, encryptedContent = null))
     }
@@ -53,12 +54,12 @@ class RoomEventsDecrypterTest {
     fun `given encrypted reply event, when decrypting, then decrypts message and replyTo`() = runTest {
         givenEncryptedReply(AN_ENCRYPTED_ROOM_REPLY, decryptsTo = A_DECRYPTED_CONTENT)
 
-        val result = roomEventsDecrypter.decryptRoomEvents(listOf(AN_ENCRYPTED_ROOM_REPLY))
+        val result = roomEventsDecrypter.decryptRoomEvents(A_USER_CREDENTIALS, listOf(AN_ENCRYPTED_ROOM_REPLY))
 
         result shouldBeEqualTo listOf(
             AN_ENCRYPTED_ROOM_REPLY.copy(
-                message = AN_ENCRYPTED_ROOM_REPLY.message.copy(content = A_DECRYPTED_MESSAGE_CONTENT, encryptedContent = null),
+                message = (AN_ENCRYPTED_ROOM_REPLY.message as RoomEvent.Message).copy(content = A_DECRYPTED_MESSAGE_CONTENT, encryptedContent = null),
-                replyingTo = AN_ENCRYPTED_ROOM_REPLY.replyingTo.copy(content = A_DECRYPTED_MESSAGE_CONTENT, encryptedContent = null),
+                replyingTo = (AN_ENCRYPTED_ROOM_REPLY.replyingTo as RoomEvent.Message).copy(content = A_DECRYPTED_MESSAGE_CONTENT, encryptedContent = null),
             )
         )
     }
@@ -66,12 +67,12 @@ class RoomEventsDecrypterTest {
     private fun givenEncryptedMessage(roomMessage: RoomEvent.Message, decryptsTo: DecryptedContent) {
         val model = roomMessage.encryptedContent!!.toModel()
         fakeMessageDecrypter.givenDecrypt(model)
-            .returns(aDecryptionSuccessResult(payload = JsonString(Json.encodeToString(DecryptedContent.serializer(), decryptsTo))))
+            .returns(aDecryptionSuccessResult(payload = JsonString(Json { encodeDefaults = true }.encodeToString(DecryptedContent.serializer(), decryptsTo))))
     }
 
     private fun givenEncryptedReply(roomReply: RoomEvent.Reply, decryptsTo: DecryptedContent) {
-        givenEncryptedMessage(roomReply.message, decryptsTo)
+        givenEncryptedMessage(roomReply.message as RoomEvent.Message, decryptsTo)
-        givenEncryptedMessage(roomReply.replyingTo, decryptsTo)
+        givenEncryptedMessage(roomReply.replyingTo as RoomEvent.Message, decryptsTo)
     }
 }
 

matrix/services/sync/src/test/kotlin/app/dapk/st/matrix/sync/internal/sync/RoomEventCreatorTest.kt

@@ -26,12 +26,13 @@ private val A_TEXT_EVENT_WITHOUT_CONTENT = anApiTimelineTextEvent(
     senderId = A_SENDER.id,
     content = aTimelineTextEventContent(body = null)
 )
+private val A_USER_CREDENTIALS = aUserCredentials()
 
 internal class RoomEventCreatorTest {
 
     private val fakeRoomMembersService = FakeRoomMembersService()
 
-    private val roomEventCreator = RoomEventCreator(fakeRoomMembersService, FakeMatrixLogger(), FakeErrorTracker())
+    private val roomEventCreator = RoomEventCreator(fakeRoomMembersService, FakeErrorTracker(), RoomEventFactory(fakeRoomMembersService))
 
     @Test
     fun `given Megolm encrypted event then maps to encrypted room message`() = runTest {
@@ -71,7 +72,7 @@ internal class RoomEventCreatorTest {
     fun `given text event then maps to room message`() = runTest {
         fakeRoomMembersService.givenMember(A_ROOM_ID, A_SENDER.id, A_SENDER)
 
-        val result = with(roomEventCreator) { A_TEXT_EVENT.toRoomEvent(A_ROOM_ID, EMPTY_LOOKUP) }
+        val result = with(roomEventCreator) { A_TEXT_EVENT.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, EMPTY_LOOKUP) }
 
         result shouldBeEqualTo aRoomMessageEvent(
             eventId = A_TEXT_EVENT.id,
@@ -85,7 +86,7 @@ internal class RoomEventCreatorTest {
     fun `given text event without body then maps to redacted room message`() = runTest {
         fakeRoomMembersService.givenMember(A_ROOM_ID, A_SENDER.id, A_SENDER)
 
-        val result = with(roomEventCreator) { A_TEXT_EVENT_WITHOUT_CONTENT.toRoomEvent(A_ROOM_ID, EMPTY_LOOKUP) }
+        val result = with(roomEventCreator) { A_TEXT_EVENT_WITHOUT_CONTENT.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, EMPTY_LOOKUP) }
 
         result shouldBeEqualTo aRoomMessageEvent(
             eventId = A_TEXT_EVENT_WITHOUT_CONTENT.id,
@@ -100,12 +101,12 @@ internal class RoomEventCreatorTest {
         fakeRoomMembersService.givenMember(A_ROOM_ID, A_SENDER.id, A_SENDER)
         val editEvent = anApiTimelineTextEvent().toEditEvent(newTimestamp = 0, messageContent = A_TEXT_EVENT_MESSAGE)
 
-        val result = with(roomEventCreator) { editEvent.toRoomEvent(A_ROOM_ID, EMPTY_LOOKUP) }
+        val result = with(roomEventCreator) { editEvent.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, EMPTY_LOOKUP) }
 
         result shouldBeEqualTo aRoomMessageEvent(
             eventId = editEvent.id,
             utcTimestamp = editEvent.utcTimestamp,
-            content = editEvent.content.body!!,
+            content = editEvent.asTextContent().body!!,
             author = A_SENDER,
             edited = true
         )
@@ -118,7 +119,7 @@ internal class RoomEventCreatorTest {
         val editedMessage = originalMessage.toEditEvent(newTimestamp = 1000, messageContent = A_TEXT_EVENT_MESSAGE)
         val lookup = givenLookup(originalMessage)
 
-        val result = with(roomEventCreator) { editedMessage.toRoomEvent(A_ROOM_ID, lookup) }
+        val result = with(roomEventCreator) { editedMessage.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, lookup) }
 
         result shouldBeEqualTo aRoomMessageEvent(
             eventId = originalMessage.id,
@@ -136,7 +137,7 @@ internal class RoomEventCreatorTest {
         val editedMessage = originalMessage.toEditEvent(newTimestamp = 1000, messageContent = A_TEXT_EVENT_MESSAGE)
         val lookup = givenLookup(originalMessage)
 
-        val result = with(roomEventCreator) { editedMessage.toRoomEvent(A_ROOM_ID, lookup) }
+        val result = with(roomEventCreator) { editedMessage.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, lookup) }
 
         result shouldBeEqualTo aRoomMessageEvent(
             eventId = originalMessage.eventId,
@@ -151,10 +152,10 @@ internal class RoomEventCreatorTest {
     fun `given edited event which relates to a room reply event then only updates message`() = runTest {
         fakeRoomMembersService.givenMember(A_ROOM_ID, A_SENDER.id, A_SENDER)
         val originalMessage = aRoomReplyMessageEvent(message = aRoomMessageEvent())
-        val editedMessage = originalMessage.message.toEditEvent(newTimestamp = 1000, messageContent = A_TEXT_EVENT_MESSAGE)
+        val editedMessage = (originalMessage.message as RoomEvent.Message).toEditEvent(newTimestamp = 1000, messageContent = A_TEXT_EVENT_MESSAGE)
         val lookup = givenLookup(originalMessage)
 
-        val result = with(roomEventCreator) { editedMessage.toRoomEvent(A_ROOM_ID, lookup) }
+        val result = with(roomEventCreator) { editedMessage.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, lookup) }
 
         result shouldBeEqualTo aRoomReplyMessageEvent(
             replyingTo = originalMessage.replyingTo,
@@ -174,7 +175,7 @@ internal class RoomEventCreatorTest {
         val editedMessage = originalMessage.toEditEvent(newTimestamp = 0, messageContent = A_TEXT_EVENT_MESSAGE)
         val lookup = givenLookup(originalMessage)
 
-        val result = with(roomEventCreator) { editedMessage.toRoomEvent(A_ROOM_ID, lookup) }
+        val result = with(roomEventCreator) { editedMessage.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, lookup) }
 
         result shouldBeEqualTo null
     }
@@ -185,22 +186,23 @@ internal class RoomEventCreatorTest {
         val editedMessage = originalMessage.toEditEvent(newTimestamp = 0, messageContent = A_TEXT_EVENT_MESSAGE)
         val lookup = givenLookup(originalMessage)
 
-        val result = with(roomEventCreator) { editedMessage.toRoomEvent(A_ROOM_ID, lookup) }
+        val result = with(roomEventCreator) { editedMessage.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, lookup) }
 
         result shouldBeEqualTo null
     }
 
     @Test
-    fun `given reply event with no relation then maps to new room message`() = runTest {
+    fun `given reply event with no relation then maps to new room message using the full body`() = runTest {
         fakeRoomMembersService.givenMember(A_ROOM_ID, A_SENDER.id, A_SENDER)
         val replyEvent = anApiTimelineTextEvent().toReplyEvent(messageContent = A_TEXT_EVENT_MESSAGE)
 
-        val result = with(roomEventCreator) { replyEvent.toRoomEvent(A_ROOM_ID, EMPTY_LOOKUP) }
+        println(replyEvent.content)
+        val result = with(roomEventCreator) { replyEvent.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, EMPTY_LOOKUP) }
 
         result shouldBeEqualTo aRoomMessageEvent(
             eventId = replyEvent.id,
             utcTimestamp = replyEvent.utcTimestamp,
-            content = "${replyEvent.content.body}",
+            content = replyEvent.asTextContent().body!!,
             author = A_SENDER,
         )
     }
@@ -212,13 +214,13 @@ internal class RoomEventCreatorTest {
         val replyMessage = originalMessage.toReplyEvent(messageContent = A_REPLY_EVENT_MESSAGE)
         val lookup = givenLookup(originalMessage)
 
-        val result = with(roomEventCreator) { replyMessage.toRoomEvent(A_ROOM_ID, lookup) }
+        val result = with(roomEventCreator) { replyMessage.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, lookup) }
 
         result shouldBeEqualTo aRoomReplyMessageEvent(
             replyingTo = aRoomMessageEvent(
                 eventId = originalMessage.id,
                 utcTimestamp = originalMessage.utcTimestamp,
-                content = originalMessage.content.body!!,
+                content = originalMessage.asTextContent().body!!,
                 author = A_SENDER,
             ),
             message = aRoomMessageEvent(
@@ -237,7 +239,7 @@ internal class RoomEventCreatorTest {
         val replyMessage = originalMessage.toReplyEvent(messageContent = A_REPLY_EVENT_MESSAGE)
         val lookup = givenLookup(originalMessage)
 
-        val result = with(roomEventCreator) { replyMessage.toRoomEvent(A_ROOM_ID, lookup) }
+        val result = with(roomEventCreator) { replyMessage.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, lookup) }
 
         result shouldBeEqualTo aRoomReplyMessageEvent(
             replyingTo = originalMessage,
@@ -254,10 +256,10 @@ internal class RoomEventCreatorTest {
     fun `given reply event which relates to another room reply event then maps to reply with the reply's message`() = runTest {
         fakeRoomMembersService.givenMember(A_ROOM_ID, A_SENDER.id, A_SENDER)
         val originalMessage = aRoomReplyMessageEvent()
-        val replyMessage = originalMessage.message.toReplyEvent(messageContent = A_REPLY_EVENT_MESSAGE)
+        val replyMessage = (originalMessage.message as RoomEvent.Message).toReplyEvent(messageContent = A_REPLY_EVENT_MESSAGE)
         val lookup = givenLookup(originalMessage)
 
-        val result = with(roomEventCreator) { replyMessage.toRoomEvent(A_ROOM_ID, lookup) }
+        val result = with(roomEventCreator) { replyMessage.toRoomEvent(A_USER_CREDENTIALS, A_ROOM_ID, lookup) }
 
         result shouldBeEqualTo aRoomReplyMessageEvent(
             replyingTo = originalMessage.message,
@@ -326,4 +328,6 @@ private fun ApiEncryptedContent.toMegolm(): RoomEvent.Message.MegOlmV1 {
 
 private class FakeLookup(private val result: LookupResult) : suspend (EventId) -> LookupResult {
     override suspend fun invoke(p1: EventId) = result
-}
+}
+
+private fun ApiTimelineEvent.TimelineMessage.asTextContent() = this.content as ApiTimelineEvent.TimelineMessage.Content.Text

matrix/services/sync/src/test/kotlin/app/dapk/st/matrix/sync/internal/sync/RoomRefresherTest.kt

@@ -22,6 +22,7 @@ private object ARoom {
     val DECRYPTED_EVENTS = listOf(MESSAGE_EVENT, DECRYPTED_EVENT)
     val NEW_STATE = RoomState(aRoomOverview(lastMessage = DECRYPTED_EVENT.asLastMessage()), DECRYPTED_EVENTS)
 }
+private val A_USER_CREDENTIALS = aUserCredentials()
 
 internal class RoomRefresherTest {
 
@@ -38,7 +39,7 @@ internal class RoomRefresherTest {
     fun `given no existing room when refreshing then does nothing`() = runTest {
         fakeRoomDataSource.givenNoCachedRoom(A_ROOM_ID)
 
-        val result = roomRefresher.refreshRoomContent(aRoomId())
+        val result = roomRefresher.refreshRoomContent(aRoomId(), A_USER_CREDENTIALS)
 
         result shouldBeEqualTo null
         fakeRoomDataSource.verifyNoChanges()
@@ -48,9 +49,9 @@ internal class RoomRefresherTest {
     fun `given existing room when refreshing then processes existing state`() = runTest {
         fakeRoomDataSource.expect { it.instance.persist(RoomId(any()), any(), any()) }
         fakeRoomDataSource.givenRoom(A_ROOM_ID, ARoom.PREVIOUS_STATE)
-        fakeRoomEventsDecrypter.givenDecrypts(ARoom.PREVIOUS_STATE.events, ARoom.DECRYPTED_EVENTS)
+        fakeRoomEventsDecrypter.givenDecrypts(A_USER_CREDENTIALS, ARoom.PREVIOUS_STATE.events, ARoom.DECRYPTED_EVENTS)
 
-        val result = roomRefresher.refreshRoomContent(aRoomId())
+        val result = roomRefresher.refreshRoomContent(aRoomId(), A_USER_CREDENTIALS)
 
         fakeRoomDataSource.verifyRoomUpdated(ARoom.PREVIOUS_STATE, ARoom.NEW_STATE)
         result shouldBeEqualTo ARoom.NEW_STATE

matrix/services/sync/src/test/kotlin/app/dapk/st/matrix/sync/internal/sync/TimelineEventsProcessorTest.kt

@@ -22,6 +22,7 @@ private val A_TEXT_TIMELINE_EVENT = anApiTimelineTextEvent()
 private val A_MESSAGE_ROOM_EVENT = aRoomMessageEvent(anEventId("a-message"))
 private val AN_ENCRYPTED_ROOM_EVENT = anEncryptedRoomMessageEvent(anEventId("encrypted-message"))
 private val A_LOOKUP_EVENT_ID = anEventId("lookup-id")
+private val A_USER_CREDENTIALS = aUserCredentials()
 
 class TimelineEventsProcessorTest {
 
@@ -41,7 +42,7 @@ class TimelineEventsProcessorTest {
     fun `given a room with no events then returns empty`() = runTest {
         val previousEvents = emptyList<RoomEvent>()
         val roomToProcess = aRoomToProcess()
-        fakeRoomEventsDecrypter.givenDecrypts(previousEvents)
+        fakeRoomEventsDecrypter.givenDecrypts(A_USER_CREDENTIALS, previousEvents)
         fakeSyncEventDecrypter.givenDecrypts(roomToProcess.apiSyncRoom.timeline.apiTimelineEvents)
 
         val result = timelineEventsProcessor.process(roomToProcess, previousEvents)
@@ -54,11 +55,18 @@ class TimelineEventsProcessorTest {
         val previousEvents = listOf(aRoomMessageEvent(eventId = anEventId("previous-event")))
         val newTimelineEvents = listOf(AN_ENCRYPTED_TIMELINE_EVENT, A_TEXT_TIMELINE_EVENT)
         val roomToProcess = aRoomToProcess(apiSyncRoom = anApiSyncRoom(anApiSyncRoomTimeline(newTimelineEvents)))
-        fakeRoomEventsDecrypter.givenDecrypts(previousEvents)
+        fakeRoomEventsDecrypter.givenDecrypts(A_USER_CREDENTIALS, previousEvents)
         fakeSyncEventDecrypter.givenDecrypts(newTimelineEvents)
         fakeEventLookup.givenLookup(A_LOOKUP_EVENT_ID, DecryptedTimeline(newTimelineEvents), DecryptedRoomEvents(previousEvents), ANY_LOOKUP_RESULT)
         fakeRoomEventCreator.givenCreates(A_ROOM_ID, AN_ENCRYPTED_TIMELINE_EVENT, AN_ENCRYPTED_ROOM_EVENT)
-        fakeRoomEventCreator.givenCreatesUsingLookup(A_ROOM_ID, A_LOOKUP_EVENT_ID, A_TEXT_TIMELINE_EVENT, A_MESSAGE_ROOM_EVENT, ANY_LOOKUP_RESULT)
+        fakeRoomEventCreator.givenCreatesUsingLookup(
+            A_USER_CREDENTIALS,
+            A_ROOM_ID,
+            A_LOOKUP_EVENT_ID,
+            A_TEXT_TIMELINE_EVENT,
+            A_MESSAGE_ROOM_EVENT,
+            ANY_LOOKUP_RESULT
+        )
 
         val result = timelineEventsProcessor.process(roomToProcess, previousEvents)
 
@@ -79,7 +87,7 @@ class TimelineEventsProcessorTest {
             anIgnoredApiTimelineEvent()
         )
         val roomToProcess = aRoomToProcess(apiSyncRoom = anApiSyncRoom(anApiSyncRoomTimeline(newTimelineEvents)))
-        fakeRoomEventsDecrypter.givenDecrypts(previousEvents)
+        fakeRoomEventsDecrypter.givenDecrypts(A_USER_CREDENTIALS, previousEvents)
         fakeSyncEventDecrypter.givenDecrypts(newTimelineEvents)
 
         val result = timelineEventsProcessor.process(roomToProcess, previousEvents)

matrix/services/sync/src/test/kotlin/internalfake/FakeRoomEventCreator.kt

@@ -2,6 +2,7 @@ package internalfake
 
 import app.dapk.st.matrix.common.EventId
 import app.dapk.st.matrix.common.RoomId
+import app.dapk.st.matrix.common.UserCredentials
 import app.dapk.st.matrix.sync.RoomEvent
 import app.dapk.st.matrix.sync.internal.request.ApiTimelineEvent
 import app.dapk.st.matrix.sync.internal.sync.LookupResult
@@ -18,9 +19,16 @@ internal class FakeRoomEventCreator {
         coEvery { with(instance) { event.toRoomEvent(roomId) } } returns result
     }
 
-    fun givenCreatesUsingLookup(roomId: RoomId, eventIdToLookup: EventId, event: ApiTimelineEvent.TimelineMessage, result: RoomEvent, lookupResult: LookupResult) {
+    fun givenCreatesUsingLookup(
+        userCredentials: UserCredentials,
+        roomId: RoomId,
+        eventIdToLookup: EventId,
+        event: ApiTimelineEvent.TimelineMessage,
+        result: RoomEvent,
+        lookupResult: LookupResult
+    ) {
         val slot = slot<suspend (EventId) -> LookupResult>()
-        coEvery { with(instance) { event.toRoomEvent(roomId, capture(slot)) } } answers {
+        coEvery { with(instance) { event.toRoomEvent(userCredentials, roomId, capture(slot)) } } answers {
             runBlocking {
                 if (slot.captured.invoke(eventIdToLookup) == lookupResult) {
                     result

matrix/services/sync/src/test/kotlin/internalfake/FakeRoomEventsDecrypter.kt

@@ -1,5 +1,6 @@
 package internalfake
 
+import app.dapk.st.matrix.common.UserCredentials
 import app.dapk.st.matrix.sync.RoomEvent
 import app.dapk.st.matrix.sync.internal.room.RoomEventsDecrypter
 import io.mockk.coEvery
@@ -8,7 +9,7 @@ import io.mockk.mockk
 internal class FakeRoomEventsDecrypter {
     val instance = mockk<RoomEventsDecrypter>()
 
-    fun givenDecrypts(previousEvents: List<RoomEvent>, result: List<RoomEvent> = previousEvents) {
+    fun givenDecrypts(userCredentials: UserCredentials, previousEvents: List<RoomEvent>, result: List<RoomEvent> = previousEvents) {
-        coEvery { instance.decryptRoomEvents(previousEvents) } returns result
+        coEvery { instance.decryptRoomEvents(userCredentials, previousEvents) } returns result
     }
 }

matrix/services/sync/src/test/kotlin/internalfixture/ApiSyncRoomFixture.kt

@@ -39,9 +39,8 @@ internal fun anApiTimelineTextEvent(
 internal fun aTimelineTextEventContent(
     body: String? = null,
     formattedBody: String? = null,
-    type: String? = null,
     relation: ApiTimelineEvent.TimelineMessage.Relation? = null,
-) = ApiTimelineEvent.TimelineMessage.Content(body, formattedBody, type, relation)
+) = ApiTimelineEvent.TimelineMessage.Content.Text(body, formattedBody, relation)
 
 internal fun anEditRelation(originalId: EventId) = ApiTimelineEvent.TimelineMessage.Relation(
     relationType = "m.replace",

matrix/services/sync/src/testFixtures/kotlin/fixture/RoomEventFixture.kt

@@ -15,8 +15,8 @@ fun aRoomMessageEvent(
 ) = RoomEvent.Message(eventId, utcTimestamp, content, author, meta, encryptedContent, edited)
 
 fun aRoomReplyMessageEvent(
-    message: RoomEvent.Message = aRoomMessageEvent(),
+    message: RoomEvent = aRoomMessageEvent(),
-    replyingTo: RoomEvent.Message = aRoomMessageEvent(eventId = anEventId("in-reply-to-id")),
+    replyingTo: RoomEvent = aRoomMessageEvent(eventId = anEventId("in-reply-to-id")),
 ) = RoomEvent.Reply(message, replyingTo)
 
 fun anEncryptedRoomMessageEvent(