From 736f52275fa822add9603f64845da46117a2ca73 Mon Sep 17 00:00:00 2001
From: Karlatemp <karlatemp@vip.qq.com>
Date: Tue, 16 Nov 2021 22:12:02 +0800
Subject: [PATCH] Drop InternalFlag in MessageReceipt

---
 .../commonMain/kotlin/message/MessageSourceInternal.kt   | 6 ++++--
 .../src/commonMain/kotlin/message/RefinableMessage.kt    | 9 +++++++++
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/mirai-core/src/commonMain/kotlin/message/MessageSourceInternal.kt b/mirai-core/src/commonMain/kotlin/message/MessageSourceInternal.kt
index 3eb674c69..d02b7a354 100644
--- a/mirai-core/src/commonMain/kotlin/message/MessageSourceInternal.kt
+++ b/mirai-core/src/commonMain/kotlin/message/MessageSourceInternal.kt
@@ -12,11 +12,11 @@ package net.mamoe.mirai.internal.message
 import kotlinx.serialization.Transient
 import net.mamoe.mirai.contact.Contact
 import net.mamoe.mirai.internal.contact.SendMessageHandler
+import net.mamoe.mirai.internal.message.LightMessageRefiner.dropMiraiInternalFlags
 import net.mamoe.mirai.internal.message.LightMessageRefiner.refineLight
 import net.mamoe.mirai.internal.network.protocol.data.proto.ImMsgBody
 import net.mamoe.mirai.message.MessageReceipt
 import net.mamoe.mirai.message.data.*
-import net.mamoe.mirai.utils.cast
 import java.util.concurrent.atomic.AtomicBoolean
 
 
@@ -80,7 +80,9 @@ internal fun <C : Contact> OnlineMessageSource.Outgoing.createMessageReceipt(
 ): MessageReceipt<C> {
     if (doLightRefine) {
         check(this is OutgoingMessageSourceInternal) { "Internal error: source !is OutgoingMessageSourceInternal" }
-        this.originalMessage = this.originalMessage.refineLight(bot)
+        this.originalMessage = this.originalMessage
+            .dropMiraiInternalFlags()
+            .refineLight(bot)
     }
     return MessageReceipt(this, target)
 }
diff --git a/mirai-core/src/commonMain/kotlin/message/RefinableMessage.kt b/mirai-core/src/commonMain/kotlin/message/RefinableMessage.kt
index f27e32e3b..5f974f4b9 100644
--- a/mirai-core/src/commonMain/kotlin/message/RefinableMessage.kt
+++ b/mirai-core/src/commonMain/kotlin/message/RefinableMessage.kt
@@ -166,6 +166,15 @@ internal object LightMessageRefiner : MessageRefiner() {
     ): MessageChain {
         return refineImpl(bot) { it.tryRefine(bot, this, refineContext) }
     }
+
+    /**
+     * 去除 [MessageChain] 携带的内部标识
+     *
+     * 用于 [createMessageReceipt] <- `RemoteFile.uploadAndSend` (文件操作API v1)
+     */
+    fun MessageChain.dropMiraiInternalFlags(): MessageChain {
+        return asSequence().filterNot { it is InternalFlagOnlyMessage }.toMessageChain()
+    }
 }
 
 /**