BREAKING: update mautrix to 0.15.x

vendor/maunium.net/go/mautrix/event/message.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Tulir Asokan
+// Copyright (c) 2023 Tulir Asokan
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -97,6 +97,9 @@ type MessageEventContent struct {
 
 	FileName string `json:"filename,omitempty"`
 
+	Mentions         *Mentions `json:"m.mentions,omitempty"`
+	UnstableMentions *Mentions `json:"org.matrix.msc3952.mentions,omitempty"`
+
 	// Edits and relations
 	NewContent *MessageEventContent `json:"m.new_content,omitempty"`
 	RelatesTo  *RelatesTo           `json:"m.relates_to,omitempty"`
@@ -135,6 +138,12 @@ func (content *MessageEventContent) SetEdit(original id.EventID) {
 		if content.Format == FormatHTML && len(content.FormattedBody) > 0 {
 			content.FormattedBody = "* " + content.FormattedBody
 		}
+		// If the message is long, remove most of the useless edit fallback to avoid event size issues.
+		if len(content.Body) > 10000 {
+			content.FormattedBody = ""
+			content.Format = ""
+			content.Body = content.Body[:50] + "[edit fallback cut…]"
+		}
 	}
 }
 
@@ -163,6 +172,11 @@ func (content *MessageEventContent) GetInfo() *FileInfo {
 	return content.Info
 }
 
+type Mentions struct {
+	UserIDs []id.UserID `json:"user_ids,omitempty"`
+	Room    bool        `json:"room,omitempty"`
+}
+
 type EncryptedFileInfo struct {
 	attachment.EncryptedFile
 	URL id.ContentURIString `json:"url"`