adding support for sending replies

2022-09-30 20:17:37 +01:00 · 2022-09-30 20:17:37 +01:00 · aa277615e5
parent 418fa46346
commit aa277615e5
5 changed files with 127 additions and 23 deletions
--- a/features/messenger/src/main/kotlin/app/dapk/st/messenger/MessengerViewModel.kt
+++ b/features/messenger/src/main/kotlin/app/dapk/st/messenger/MessengerViewModel.kt
@ -109,7 +109,7 @@ internal class MessengerViewModel(
        when (val composerState = state.composerState) {
            is ComposerState.Text -> {
                val copy = composerState.copy()
-                updateState { copy(composerState = composerState.copy(value = "")) }
+                updateState { copy(composerState = composerState.copy(value = "", reply = null)) }

                state.roomState.takeIfContent()?.let { content ->
                    val roomState = content.roomState
@ -121,6 +121,18 @@ internal class MessengerViewModel(
                                sendEncrypted = roomState.roomOverview.isEncrypted,
                                localId = localIdFactory.create(),
                                timestampUtc = clock.millis(),
+                                reply = copy.reply?.let {
+                                    MessageService.Message.TextMessage.Reply(
+                                        authorId = it.author.id,
+                                        originalMessage = when (it) {
+                                            is RoomEvent.Image -> TODO()
+                                            is RoomEvent.Reply -> TODO()
+                                            is RoomEvent.Message -> it.content
+                                        },
+                                        copy.value,
+                                        it.eventId
+                                    )
+                                }
                            )
                        )
                    }
--- a/matrix/services/message/src/main/kotlin/app/dapk/st/matrix/message/MessageService.kt
+++ b/matrix/services/message/src/main/kotlin/app/dapk/st/matrix/message/MessageService.kt
@ -1,11 +1,7 @@
 package app.dapk.st.matrix.message

-import app.dapk.st.core.Base64
 import app.dapk.st.matrix.*
-import app.dapk.st.matrix.common.AlgorithmName
-import app.dapk.st.matrix.common.EventId
-import app.dapk.st.matrix.common.MessageType
-import app.dapk.st.matrix.common.RoomId
+import app.dapk.st.matrix.common.*
 import app.dapk.st.matrix.message.internal.DefaultMessageService
 import app.dapk.st.matrix.message.internal.ImageContentReader
 import kotlinx.coroutines.flow.Flow
@ -43,7 +39,17 @@ interface MessageService : MatrixService {
            @SerialName("room_id") val roomId: RoomId,
            @SerialName("local_id") val localId: String,
            @SerialName("timestamp") val timestampUtc: Long,
-        ) : Message()
+            @SerialName("reply") val reply: Reply? = null,
+            @SerialName("reply_id") val replyId: String? = null,
+        ) : Message() {
+            @Serializable
+            data class Reply(
+                val authorId: UserId,
+                val originalMessage: String,
+                val replyContent: String,
+                val eventId: EventId
+            )
+        }

        @Serializable
        @SerialName("image_message")
--- a/matrix/services/message/src/main/kotlin/app/dapk/st/matrix/message/internal/ApiMessage.kt
+++ b/matrix/services/message/src/main/kotlin/app/dapk/st/matrix/message/internal/ApiMessage.kt
@ -1,5 +1,6 @@
 package app.dapk.st.matrix.message.internal

+import app.dapk.st.matrix.common.EventId
 import app.dapk.st.matrix.common.MessageType
 import app.dapk.st.matrix.common.MxUrl
 import app.dapk.st.matrix.common.RoomId
@ -20,8 +21,26 @@ sealed class ApiMessage {
        @Serializable
        data class TextContent(
            @SerialName("body") val body: String,
-            @SerialName("msgtype") val type: String = MessageType.TEXT.value,
-        ) : ApiMessageContent
+            @SerialName("m.relates_to") val relatesTo: RelatesTo? = null,
+            @SerialName("formatted_body") val formattedBody: String? = null,
+            @SerialName("format") val format: String? = null,
+        ) : ApiMessageContent {
+
+            @SerialName("msgtype")
+            val type: String = MessageType.TEXT.value
+        }
+    }
+
+    @Serializable
+    data class RelatesTo(
+        @SerialName("m.in_reply_to") val inReplyTo: InReplyTo
+    ) {
+
+        @Serializable
+        data class InReplyTo(
+            @SerialName("event_id") val eventId: EventId
+        )
+
    }

    @Serializable
--- a/matrix/services/message/src/main/kotlin/app/dapk/st/matrix/message/internal/SendMessageUseCase.kt
+++ b/matrix/services/message/src/main/kotlin/app/dapk/st/matrix/message/internal/SendMessageUseCase.kt
@ -1,9 +1,6 @@
 package app.dapk.st.matrix.message.internal

-import app.dapk.st.matrix.common.EventId
-import app.dapk.st.matrix.common.EventType
-import app.dapk.st.matrix.common.JsonString
-import app.dapk.st.matrix.common.RoomId
+import app.dapk.st.matrix.common.*
 import app.dapk.st.matrix.http.MatrixHttpClient
 import app.dapk.st.matrix.http.MatrixHttpClient.HttpRequest
 import app.dapk.st.matrix.message.ApiSendResponse
@ -37,7 +34,7 @@ internal class SendMessageUseCase(
    }

    private suspend fun ApiMessageMapper.textMessageRequest(message: Message.TextMessage): HttpRequest<ApiSendResponse> {
-        val contents = message.toContents()
+        val contents = message.toContents(message.reply)
        return when (message.sendEncrypted) {
            true -> sendRequest(
                roomId = message.roomId,
@ -49,6 +46,7 @@ internal class SendMessageUseCase(
                        contents.toMessageJson(message.roomId)
                    )
                ),
+                relatesTo = contents.relatesTo
            )

            false -> sendRequest(
@ -115,6 +113,7 @@ internal class SendMessageUseCase(
                    eventType = EventType.ENCRYPTED,
                    txId = message.localId,
                    content = messageEncrypter.encrypt(MessageEncrypter.ClearMessagePayload(message.roomId, json)),
+                    relatesTo = null
                )
            }

@ -148,13 +147,22 @@ internal class SendMessageUseCase(

 }

+private val MX_REPLY_REGEX = "<mx-reply>.*</mx-reply>".toRegex()

 class ApiMessageMapper {

-    fun Message.TextMessage.toContents() = ApiMessage.TextMessage.TextContent(
-        this.content.body,
-        this.content.type,
-    )
+    fun Message.TextMessage.toContents(reply: Message.TextMessage.Reply?) = when (reply) {
+        null -> ApiMessage.TextMessage.TextContent(
+            body = this.content.body,
+        )
+
+        else -> ApiMessage.TextMessage.TextContent(
+            body = buildReplyFallback(reply.originalMessage, reply.authorId, reply.replyContent),
+            relatesTo = ApiMessage.RelatesTo(ApiMessage.RelatesTo.InReplyTo(reply.eventId)),
+            formattedBody = buildFormattedReply(reply.authorId, reply.originalMessage, reply.replyContent, this.roomId, reply.eventId),
+            format = "org.matrix.custom.html"
+        )
+    }

    fun ApiMessage.TextMessage.TextContent.toMessageJson(roomId: RoomId) = JsonString(
        MatrixHttpClient.jsonWithDefaults.encodeToString(
@ -167,4 +175,33 @@ class ApiMessageMapper {
        )
    )

+    private fun buildReplyFallback(originalMessage: String, originalSenderId: UserId, reply: String): String {
+        return buildString {
+            append("> <")
+            append(originalSenderId.value)
+            append(">")
+
+            val lines = originalMessage.split("\n")
+            lines.forEachIndexed { index, s ->
+                if (index == 0) {
+                    append(" $s")
+                } else {
+                    append("\n> $s")
+                }
+            }
+            append("\n\n")
+            append(reply)
+        }
+    }
+
+    private fun buildFormattedReply(userId: UserId, originalMessage: String, reply: String, roomId: RoomId, eventId: EventId): String {
+        val permalink = "https://matrix.to/#/${roomId.value}/${eventId.value}"
+        val userLink = "https://matrix.to/#/${userId.value}"
+        val cleanOriginalMessage = originalMessage.replace(MX_REPLY_REGEX, "")
+        return """
+            <mx-reply><blockquote><a href="$permalink">In reply to</a> <a href="$userLink">${userId.value}</a><br>${cleanOriginalMessage}</blockquote></mx-reply>$reply
+        """.trimIndent()
+
+    }
+
 }
--- a/matrix/services/message/src/main/kotlin/app/dapk/st/matrix/message/internal/SendRequest.kt
+++ b/matrix/services/message/src/main/kotlin/app/dapk/st/matrix/message/internal/SendRequest.kt
@ -1,7 +1,6 @@
 package app.dapk.st.matrix.message.internal

-import app.dapk.st.matrix.common.EventType
-import app.dapk.st.matrix.common.RoomId
+import app.dapk.st.matrix.common.*
 import app.dapk.st.matrix.http.MatrixHttpClient
 import app.dapk.st.matrix.http.MatrixHttpClient.HttpRequest.Companion.httpRequest
 import app.dapk.st.matrix.http.jsonBody
@ -14,6 +13,8 @@ import app.dapk.st.matrix.message.internal.ApiMessage.TextMessage
 import io.ktor.http.*
 import io.ktor.http.content.*
 import io.ktor.utils.io.jvm.javaio.*
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
 import java.io.InputStream
 import java.util.*

@ -26,10 +27,29 @@ internal fun sendRequest(roomId: RoomId, eventType: EventType, txId: String, con
    }
 )

-internal fun sendRequest(roomId: RoomId, eventType: EventType, txId: String, content: MessageEncrypter.EncryptedMessagePayload) = httpRequest<ApiSendResponse>(
+internal fun sendRequest(
+    roomId: RoomId,
+    eventType: EventType,
+    txId: String,
+    content: MessageEncrypter.EncryptedMessagePayload,
+    relatesTo: ApiMessage.RelatesTo?
+) = httpRequest<ApiSendResponse>(
    path = "_matrix/client/r0/rooms/${roomId.value}/send/${eventType.value}/${txId}",
    method = MatrixHttpClient.Method.PUT,
-    body = jsonBody(MessageEncrypter.EncryptedMessagePayload.serializer(), content)
+    body = jsonBody(ApiEncryptedMessage.serializer(), content.let {
+        val apiEncryptedMessage = ApiEncryptedMessage(
+            algorithmName = content.algorithmName,
+            senderKey = content.senderKey,
+            cipherText = content.cipherText,
+            sessionId = content.sessionId,
+            deviceId = content.deviceId,
+        )
+        when (relatesTo) {
+            null -> apiEncryptedMessage
+            else -> apiEncryptedMessage.copy(relatesTo = relatesTo)
+        }
+
+    })
 )

 internal fun sendRequest(roomId: RoomId, eventType: EventType, content: EventMessage) = httpRequest<ApiSendResponse>(
@ -52,3 +72,13 @@ internal fun uploadRequest(stream: InputStream, contentLength: Long, filename: S
 )

 fun txId() = "local.${UUID.randomUUID()}"
+
+@Serializable
+data class ApiEncryptedMessage(
+    @SerialName("algorithm") val algorithmName: AlgorithmName,
+    @SerialName("sender_key") val senderKey: String,
+    @SerialName("ciphertext") val cipherText: CipherText,
+    @SerialName("session_id") val sessionId: SessionId,
+    @SerialName("device_id") val deviceId: DeviceId,
+    @SerialName("m.relates_to") val relatesTo: ApiMessage.RelatesTo? = null,
+)