From 2fa5571d815542a96db446c1c80a95bcf08ca599 Mon Sep 17 00:00:00 2001
From: Timofey <timofey.boyko@onlyoffice.com>
Date: Fri, 21 Nov 2025 15:19:44 +0800
Subject: [PATCH] Fixed Bug 78519 - Special characters are used in the chat
 save to file dialog

---
 ChromiumBasedEditors/plugins/ai-agent/src/lib/utils.ts      | 6 +++++-
 .../plugins/ai-agent/src/store/useThreadsStore.ts           | 4 ++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/ChromiumBasedEditors/plugins/ai-agent/src/lib/utils.ts b/ChromiumBasedEditors/plugins/ai-agent/src/lib/utils.ts
index ff575365..e8c4226f 100644
--- a/ChromiumBasedEditors/plugins/ai-agent/src/lib/utils.ts
+++ b/ChromiumBasedEditors/plugins/ai-agent/src/lib/utils.ts
@@ -39,12 +39,16 @@ export const convertMessagesToMd = (messages: ThreadMessageLike[]) => {
   return content;
 };
 
+export const removeSpecialCharacter = (str: string) => {
+  return str.replace(/[\\/:*"<>|?]/g, "");
+};
+
 export const getMessageTitleFromMd = (md: string) => {
   const lines = md.split("\n");
 
   const title = lines[0].replace("## ", "");
 
-  return title.substring(0, 30);
+  return removeSpecialCharacter(title).substring(0, 30);
 };
 
 export const isDocument = (type: number) => {
diff --git a/ChromiumBasedEditors/plugins/ai-agent/src/store/useThreadsStore.ts b/ChromiumBasedEditors/plugins/ai-agent/src/store/useThreadsStore.ts
index 297e8a72..6eef523e 100644
--- a/ChromiumBasedEditors/plugins/ai-agent/src/store/useThreadsStore.ts
+++ b/ChromiumBasedEditors/plugins/ai-agent/src/store/useThreadsStore.ts
@@ -9,7 +9,7 @@ import {
 } from "@/database/threads";
 import { readMessages } from "@/database/messages";
 import type { Thread } from "@/lib/types";
-import { convertMessagesToMd } from "@/lib/utils";
+import { convertMessagesToMd, removeSpecialCharacter } from "@/lib/utils";
 
 type UseThreadsStoreProps = {
   threadId: string;
@@ -71,7 +71,7 @@ const useThreadsStore = create<UseThreadsStoreProps>((set, get) => ({
     const thread = thisStore.threads.find((t) => t.threadId === id);
     const messages = await readMessages(id);
 
-    const title = thread?.title || "Chat Export";
+    const title = removeSpecialCharacter(thread?.title || "Chat Export");
 
     const content = convertMessagesToMd(messages);