Fix matrix reply on modified message for discord

This should fix a bug where doing a reply on a modified message send a message to discord with a webhook containing the message without modification.

src/matrixeventprocessor.ts

@@ -324,6 +324,54 @@ export class MatrixEventProcessor {
         };
     }
 
+    public async ReplyEventToEmbed(
+        event: IMatrixEvent, repliedEvent: IMatrixEvent, channel: Discord.TextChannel, getReply: boolean = true,
+    ): Promise<IMatrixEventProcessorResult> {
+        const mxClient = this.bridge.botIntent.underlyingClient;
+        const profile = await this.GetUserProfileForRoom(repliedEvent.room_id, repliedEvent.sender);
+        const params = {
+            mxClient,
+            roomId: repliedEvent.room_id,
+            userId: repliedEvent.sender,
+        } as IMatrixMessageProcessorParams;
+        if (profile) {
+            params.displayname = profile.displayname;
+        }
+        let formattedBodyRegex = new RegExp("<br(?: \/)?>(.*)<\/blockquote>",'g');
+        let bodyRegex = new RegExp("> <@[^\.>]*:[^\.>]*\.[^\.>]*> (.*)",'g');
+        let body: string = "";
+        if (event.type !== "m.sticker") {
+            const replyContent = repliedEvent.content;
+            const baseContent = event.content;
+            if(replyContent && baseContent && replyContent["body"] && baseContent["body"]){
+                replyContent["body"] = [...baseContent["body"].matchAll(bodyRegex)][0][1]
+            }
+            if(replyContent && baseContent && replyContent["formatted_body"] && baseContent["formatted_body"]){
+                replyContent["formatted_body"] = [...baseContent["formatted_body"].matchAll(formattedBodyRegex)][0][1]
+            }
+            body = await this.matrixMsgProcessor.FormatMessage(replyContent as IMatrixMessage, channel.guild, params);
+        }
+
+        const messageEmbed = new Discord.MessageEmbed();
+        messageEmbed.setDescription(body);
+        await this.SetEmbedAuthor(messageEmbed, repliedEvent.sender, profile);
+        const replyEmbed = getReply ? (await this.GetEmbedForReply(repliedEvent, channel)) : undefined;
+        if (replyEmbed && replyEmbed.fields) {
+            for (let i = 0; i < replyEmbed.fields.length; i++) {
+                const f = replyEmbed.fields[i];
+                if (f.name === "ping") {
+                    messageEmbed.description += `\n(${f.value})`;
+                    replyEmbed.fields.splice(i, 1);
+                    break;
+                }
+            }
+        }
+        return {
+            messageEmbed,
+            replyEmbed,
+        };
+    }
+
     public async HandleAttachment(
         event: IMatrixEvent,
         mxClient: MatrixClient,
@@ -391,7 +439,7 @@ export class MatrixEventProcessor {
             if (!sourceEvent || !sourceEvent.content || !sourceEvent.content.body) {
                 throw Error("No content could be found");
             }
-            const replyEmbed = (await this.EventToEmbed(sourceEvent, channel, true)).messageEmbed;
+            const replyEmbed = (await this.ReplyEventToEmbed(event, sourceEvent, channel, true)).messageEmbed;
 
             // if we reply to a discord member, ping them!
             if (this.bridge.isNamespacedUser(sourceEvent.sender)) {