refac

backend/open_webui/utils/middleware.py

@@ -2263,6 +2263,9 @@ async def process_chat_payload(request, form_data, user, metadata, model):
     form_data = apply_params_to_form_data(form_data, model)
     log.debug(f'form_data: {form_data}')
 
+    # Guided regeneration: extract before it reaches the LLM provider
+    regeneration_prompt = form_data.pop('regeneration_prompt', None)
+
     # Load messages from DB when available — DB preserves structured 'output' items
     # which the frontend strips, causing tool calls to be merged into content.
     chat_id = metadata.get('chat_id')
@@ -2298,6 +2301,9 @@ async def process_chat_payload(request, form_data, user, metadata, model):
                 # Strip files field — it's been incorporated into content
                 message.pop('files', None)
 
+    if regeneration_prompt:
+        form_data['messages'].append({'role': 'user', 'content': regeneration_prompt})
+
     # Process messages with OR-aligned output items for clean LLM messages
     form_data['messages'] = process_messages_with_output(form_data.get('messages', []))
 
@@ -4876,6 +4882,11 @@ async def streaming_chat_response_handler(response, ctx):
 
                                 log.debug(f'Code interpreter output: {ci_output}')
 
+                                # Handle error responses from event_caller
+                                # (e.g. session disconnected, timeout)
+                                if isinstance(ci_output, dict) and ci_output.get('error'):
+                                    ci_output = {'stderr': ci_output['error']}
+
                                 if isinstance(ci_output, dict):
                                     stdout = ci_output.get('stdout', '')
 

src/lib/components/chat/Chat.svelte

@@ -121,8 +121,10 @@
 	let controlPaneComponent: ChatControls | undefined;
 
 	let messageInput: MessageInput | undefined;
+	let messagesRef: Messages | undefined;
 
 	let autoScroll = true;
+	let isNearTop = true;
 	let processing = '';
 	let messagesContainerElement: HTMLDivElement;
 
@@ -1413,6 +1415,10 @@
 		}
 	};
 
+	const scrollToTop = async () => {
+		await messagesRef?.scrollToTop();
+	};
+
 	let scrollRAF = null;
 	let contentsRAF = null;
 	const scheduleScrollToBottom = () => {
@@ -1969,11 +1975,13 @@
 		{
 			messages = null,
 			modelId = null,
-			modelIdx = null
+			modelIdx = null,
+			regenerationPrompt = null
 		}: {
 			messages?: any[] | null;
 			modelId?: string | null;
 			modelIdx?: number | null;
+			regenerationPrompt?: string | null;
 		} = {}
 	) => {
 		if (autoScroll) {
@@ -2085,7 +2093,8 @@
 				_history,
 				primaryResponseMessageId,
 				_chatId,
-				selectedModelIds.length > 1 ? messageIdsMap : undefined
+				selectedModelIds.length > 1 ? messageIdsMap : undefined,
+				regenerationPrompt
 			);
 
 			if (chatEventEmitter) clearInterval(chatEventEmitter);
@@ -2150,7 +2159,8 @@
 		_history,
 		responseMessageId,
 		_chatId,
-		messageIdsMap?: Record<string, string>
+		messageIdsMap?: Record<string, string>,
+		regenerationPrompt?: string | null
 	) => {
 		const responseMessage = _history.messages[responseMessageId];
 		const userMessage = _history.messages[responseMessage.parentId];
@@ -2206,6 +2216,8 @@
 				? { role: 'system', content: `${params?.system ?? $settings?.system ?? ''}` }
 				: undefined
 		].filter(Boolean);
+
+
 		if ($temporaryChatEnabled) {
 			messages = [
 				...messages,
@@ -2349,6 +2361,7 @@
 				...(messageIdsMap ? { message_ids: messageIdsMap } : {}),
 				parent_id: userMessage?.parentId ?? null,
 				user_message: userMessage,
+				...(regenerationPrompt ? { regeneration_prompt: regenerationPrompt } : {}),
 
 				background_tasks: {
 					...(!$temporaryChatEnabled && !_chatId && (userMessage?.parentId ?? null) === null
@@ -2580,13 +2593,8 @@
 			await sendMessage(history, userMessage.id, {
 				...(suggestionPrompt
 					? {
-							messages: [
-								...createMessagesList(history, message.id),
-								{
-									role: 'user',
-									content: suggestionPrompt
-								}
-							]
+							messages: createMessagesList(history, message.id),
+							regenerationPrompt: suggestionPrompt
 						}
 					: {}),
 				...((userMessage?.models ?? [...selectedModels]).length > 1
@@ -2916,6 +2924,7 @@
 						bind:selectedModels
 						shareEnabled={!!history.currentId}
 						{initNewChat}
+						scrollToTop={!isNearTop ? scrollToTop : null}
 						{archiveChatHandler}
 						{deleteChatHandler}
 						{moveChatHandler}
@@ -2968,10 +2977,12 @@
 									autoScroll =
 										messagesContainerElement.scrollHeight - messagesContainerElement.scrollTop <=
 										messagesContainerElement.clientHeight + 5;
+									isNearTop = messagesContainerElement.scrollTop <= 100;
 								}}
 							>
 								<div class=" h-full w-full flex flex-col">
 									<Messages
+										bind:this={messagesRef}
 										chatId={$chatId}
 										bind:history
 										bind:autoScroll

src/lib/components/chat/Messages.svelte

@@ -143,6 +143,18 @@
 		element.scrollTop = element.scrollHeight;
 	};
 
+	export const scrollToTop = async () => {
+		messagesCount = null;
+		buildMessages();
+		await tick();
+		if (messages.length > 0) {
+			const firstMessageEl = document.getElementById(`message-${messages[0].id}`);
+			if (firstMessageEl) {
+				firstMessageEl.scrollIntoView({ behavior: 'smooth', block: 'start' });
+			}
+		}
+	};
+
 	const updateChat = async () => {
 		if (!$temporaryChatEnabled) {
 			history = history;

src/lib/components/chat/Navbar.svelte

@@ -45,6 +45,7 @@
 	export let initNewChat: Function;
 	export let shareEnabled: boolean = false;
 	export let scrollTop = 0;
+	export let scrollToTop: (() => void) | null = null;
 
 	export let chat;
 	export let history;
@@ -194,6 +195,7 @@
 						<Menu
 							{chat}
 							{shareEnabled}
+							{scrollToTop}
 							shareHandler={() => {
 								showShareChatModal = !showShareChatModal;
 							}}

src/lib/components/layout/Navbar/Menu.svelte

@@ -50,6 +50,7 @@
 
 	export let chat;
 	export let onClose: Function = () => {};
+	export let scrollToTop: (() => void) | null = null;
 
 	let showFullMessages = false;
 
@@ -310,6 +311,35 @@
 				</svg>
 				<div class="flex items-center">{$i18n.t('Settings')}</div>
 			</DropdownMenu.Item> -->
+			<!-- Settings commented out block above -->
+
+			{#if scrollToTop}
+				<button
+					draggable="false"
+					class="flex gap-2 items-center px-3 py-1.5 text-sm cursor-pointer hover:bg-gray-50 dark:hover:bg-gray-800 rounded-xl select-none w-full"
+					on:click={() => {
+						scrollToTop();
+					}}
+				>
+					<svg
+						xmlns="http://www.w3.org/2000/svg"
+						fill="none"
+						viewBox="0 0 24 24"
+						stroke-width="1.5"
+						stroke="currentColor"
+						class="size-4"
+					>
+						<path
+							stroke-linecap="round"
+							stroke-linejoin="round"
+							d="M4.5 10.5 12 3m0 0 7.5 7.5M12 3v18"
+						/>
+					</svg>
+					<div class="flex items-center">{$i18n.t('Scroll to Top')}</div>
+				</button>
+
+				<hr class="border-gray-50/30 dark:border-gray-800/30 my-1" />
+			{/if}
 
 			{#if ($artifactContents ?? []).length > 0}
 				<button