feat: 实现跨端引用回复协议，新增 QuoteBar 组件支持消息引用

本次提交实现了与 iOS 对齐的跨端消息引用协议，新增 QuoteBar 组件用于渲染引用消息栏，重构发送逻辑支持文本和媒体消息的引用功能。主要改动包括：
- 新增 reply.ts 处理引用数据的构建和解析
- 新增 QuoteBar 组件渲染引用消息预览
- 重构发送逻辑，将引用快照放入消息头部而非内容
- 调整代理配置指向本地开发环境
- 优化消息操作权限，支持名片和媒体消息引用

web/src/features/messages/ConversationView.tsx

@@ -25,8 +25,8 @@ import { FETCH_PAGE_TRIGGER, MESSAGES_PAGE } from '@/lib/config';
 import { useClickOutside } from '@/lib/hooks';
 import { availableActions, recallRemainingSeconds, type MessageAction } from '@/lib/messages/actions';
 import { isRecalled } from '@/lib/messages/dispatch';
-import { renderDrafty } from '@/lib/messages/drafty';
 import { buildMentionedContent, detectMentionTrigger, type PendingMention } from '@/lib/messages/mentions';
+import { buildReplyInfo, replySnapshotText } from '@/lib/messages/reply';
 import { groupSenderLabel } from '@/lib/messages/sender-name';
 import { sendFile, sendImage, sendVoice } from '@/lib/tinode/attachments';
 import { isTopicGone } from '@/lib/tinode/errors';
@@ -607,6 +607,16 @@ export function ConversationView() {
     return peerName;
   };
 
+  /** Arms a media send with the pending quote and clears the composer's reply state in one step:
+   *  the quote applies to the NEXT outgoing message only (cross-client rule), and a picked image
+   *  or recorded voice is that message. Returns null when nothing is armed or the quoted message
+   *  has become unquotable in the meantime (send proceeds as a plain media message). */
+  const consumePendingReply = () => {
+    const pending = replyTo ? buildReplyInfo(replyTo) : null;
+    setReplyTo(null);
+    return pending;
+  };
+
   /**
    * "加载更多" (README §3.2/old app's messages-view.jsx): not simple since/before paging -- computes
    * which seq ranges are actually missing from the local cache within the currently-visible window
@@ -670,7 +680,7 @@ export function ConversationView() {
           // Mentions inside a reply don't get spliced into real MN entities -- a quoted reply that
           // also pings someone is a rare enough compound case that it isn't worth a second
           // stitching path; the "@name" text still sends fine, just without the entity/highlight.
-          return sendReply(target, text, pendingReplyTo, quotedSenderLabel(pendingReplyTo.from));
+          return sendReply(target, text, pendingReplyTo);
         }
         if (pendingMentions.length > 0) {
           return sendPrebuiltContent(target, buildMentionedContent(text, pendingMentions));
@@ -868,13 +878,19 @@ export function ConversationView() {
   const handlePickImage = (e: React.ChangeEvent<HTMLInputElement>) => {
     const file = e.target.files?.[0];
     e.target.value = '';
-    if (file) sendImage(topic, file).catch((err) => showError(err, '图片发送失败'));
+    if (file) {
+      const reply = consumePendingReply();
+      sendImage(topic, file, reply).catch((err) => showError(err, '图片发送失败'));
+    }
   };
 
   const handlePickFile = (e: React.ChangeEvent<HTMLInputElement>) => {
     const file = e.target.files?.[0];
     e.target.value = '';
-    if (file) sendFile(topic, file).catch((err) => showError(err, '文件发送失败'));
+    if (file) {
+      const reply = consumePendingReply();
+      sendFile(topic, file, reply).catch((err) => showError(err, '文件发送失败'));
+    }
   };
 
   return (
@@ -1002,6 +1018,7 @@ export function ConversationView() {
               highlighted={typeof msg.seq === 'number' && highlightedSeq === msg.seq}
               onToggleSelect={toggleSelect}
               onContextMenu={(e, m) => setMenu({ x: e.clientX, y: e.clientY, msg: m })}
+              resolveQuotedName={quotedSenderLabel}
               onError={setErrorToast}
             />
           );
@@ -1042,7 +1059,7 @@ export function ConversationView() {
           {replyTo ? (
             <div className="mb-2 flex items-center justify-between rounded-lg bg-surface-input px-3 py-1.5 text-xs text-text-tertiary-1">
               <span className="truncate">
-                回复 {quotedSenderLabel(replyTo.from)}：{renderDrafty(replyTo.content)}
+                回复 {quotedSenderLabel(replyTo.from)}：{replySnapshotText(replyTo)}
               </span>
               <button type="button" onClick={() => setReplyTo(null)} className="flex-none text-text-tertiary-3">
                 <Icon name="close" className="text-[16px]" />
@@ -1137,7 +1154,8 @@ export function ConversationView() {
               onCancel={() => setRecording(false)}
               onSend={(blob, durationMs) => {
                 setRecording(false);
-                sendVoice(topic, blob, durationMs).catch((err) => showError(err, '语音发送失败'));
+                const reply = consumePendingReply();
+                sendVoice(topic, blob, durationMs, reply).catch((err) => showError(err, '语音发送失败'));
               }}
             />
           ) : (

web/src/features/messages/MessageBubble.tsx

@@ -16,6 +16,8 @@ import {
 } from '@/lib/messages/dispatch';
 import { renderDrafty } from '@/lib/messages/drafty';
 import { AudioAttachment, FileAttachment, ImageAttachment, VideoAttachment } from '@/features/messages/AttachmentPreview';
+import { QuoteBar } from '@/features/messages/QuoteBar';
+import { parseReplyHead } from '@/lib/messages/reply';
 import { formatBubbleTime, formatEventTimestamp } from '@/lib/messages/time';
 import { isFailedStatus, isSendingStatus, outgoingStatusLabel } from '@/lib/messages/status';
 import { groupSenderLabel } from '@/lib/messages/sender-name';
@@ -74,6 +76,10 @@ interface MessageRowProps {
   highlighted?: boolean;
   onToggleSelect?: (seq: number) => void;
   onContextMenu?: (e: React.MouseEvent, msg: StoredMessage) => void;
+  /** Resolves a QUOTED message's sender uid (from head["x-im-reply"].from) to a display label.
+   *  Owned by ConversationView so group remark/nickname resolution stays in one place; QuoteBar
+   *  must never print a raw uid. */
+  resolveQuotedName?: (uid: string | undefined) => string;
   /** Fired when the inline "重试" retry (below) itself fails -- e.g. still offline. Without this the
    *  failed-send icon just silently stays put with no feedback at all that the retry attempt was
    *  even made. */
@@ -95,6 +101,7 @@ export function MessageRow({
   highlighted,
   onToggleSelect,
   onContextMenu,
+  resolveQuotedName,
   onError,
 }: MessageRowProps) {
   if (isServerDeleted(msg)) {
@@ -121,6 +128,9 @@ export function MessageRow({
   const callResult = callResultDisplay(msg, mine);
   const contactCard = contactCardContentOf(msg);
   const mobileAttachment = mobileAttachmentContentOf(msg);
+  // Quoted-reply snapshot (x-im-reply). Not rendered for a recalled message -- its whole bubble
+  // collapses to the "消息已删除" placeholder, quote bar included.
+  const replyInfo = isRecalled(msg) ? null : parseReplyHead(msg.head);
 
   const retry = () => {
     if (typeof msg.seq !== 'number') return;
@@ -201,6 +211,9 @@ export function MessageRow({
                 mine ? 'rounded-[12px_4px_12px_12px] bg-bubble-mine' : 'rounded-[4px_12px_12px_12px] bg-white shadow-bubble'
               } ${isRecalled(msg) ? 'text-text-tertiary-4 italic' : ''} ${menuActive ? 'outline outline-2 outline-offset-2 outline-accent' : ''}`}
             >
+              {replyInfo ? (
+                <QuoteBar topicName={topic.name} reply={replyInfo} resolveName={resolveQuotedName ?? (() => '消息')} />
+              ) : null}
               {isRecalled(msg) ? (
                 '⚠ 消息已删除'
               ) : callResult ? (

web/src/features/messages/QuoteBar.tsx

@@ -0,0 +1,138 @@
+import { useMemo } from 'react';
+
+import { Icon } from '@/app/Icon';
+import { useAuthedBlobUrl } from '@/lib/hooks';
+import { isRecalled, isServerDeleted } from '@/lib/messages/dispatch';
+import {
+  placeholderForType,
+  quotedMediaOf,
+  type ReplyInfo,
+  type QuoteMedia,
+} from '@/lib/messages/reply';
+import { useTopicMessages } from '@/lib/tinode/hooks';
+import { useMessageJumpStore } from '@/stores/messageJump';
+import type { StoredMessage } from 'tinode-sdk';
+
+/**
+ * Quote bar rendered at the top of a bubble, driven exclusively by `head["x-im-reply"]`
+ * (cross-client contract aligned with iOS, 2026-09-23):
+ *
+ *  - the head only carries a lightweight snapshot {seq,type,text,from}; the quoted message itself
+ *    is re-resolved from the LOCAL message cache by seq, which unlocks real thumbnails / voice
+ *    durations and the "该消息已删除" state that no snapshot can express;
+ *  - when the quoted message isn't local (fresh device, cleared history, unloaded range), the
+ *    snapshot carries rendering alone -- localized placeholder per type, never blank;
+ *  - clicking requests a scroll-locate + highlight via the same messageJump store the history
+ *    search uses; it transparently fetches the surrounding range when the target isn't loaded.
+ *
+ * Deliberately a plain <button>-free clickable div: it must not submit anything, but must allow
+ * nested long-press/selection behavior of the bubble itself.
+ */
+
+function formatVoiceDuration(ms: number | undefined): string {
+  if (typeof ms !== 'number' || ms <= 0) return '';
+  return `${Math.max(1, Math.round(ms / 1000))}″`;
+}
+
+/** Small authenticated thumbnail (28x28 box per iOS spec) for image/video quotes. */
+function QuoteThumb({ media }: { media: { val?: string; ref?: string; mime?: string } }) {
+  const inline = typeof media.val === 'string' ? `data:${media.mime || 'image/jpeg'};base64,${media.val}` : null;
+  const remote = useAuthedBlobUrl(inline ? undefined : media.ref);
+  const src = inline || remote.url;
+  if (!src) {
+    return (
+      <span className="grid h-7 w-7 flex-none place-items-center rounded bg-black/[0.06]">
+        <Icon name="image" className="text-[15px] text-text-tertiary-3" />
+      </span>
+    );
+  }
+  return <img src={src} alt="" className="h-7 w-7 flex-none rounded object-cover" />;
+}
+
+function MediaSummary({ media }: { media: QuoteMedia }) {
+  if ((media.kind === 'image' || media.kind === 'video') && media.image) {
+    return (
+      <span className="flex min-w-0 flex-none items-center gap-1">
+        {media.kind === 'video' ? <Icon name="play_circle" className="flex-none text-[14px]" /> : null}
+        <QuoteThumb media={media.image} />
+      </span>
+    );
+  }
+  if (media.kind === 'voice') {
+    const seconds = formatVoiceDuration(media.durationMs);
+    return (
+      <span className="flex flex-none items-center gap-1">
+        <Icon name="mic_none" className="text-[14px]" />
+        {seconds ? <span>{seconds}</span> : null}
+      </span>
+    );
+  }
+  return <Icon name="insert_drive_file" className="flex-none text-[14px]" />;
+}
+
+interface QuoteBarProps {
+  topicName: string;
+  reply: ReplyInfo;
+  /** Resolves a quoted sender uid to a display label (group remark/nick -> peer name); the parent
+   *  already owns this lookup, and must never surface a raw uid to the user. */
+  resolveName: (uid: string | undefined) => string;
+}
+
+export function QuoteBar({ topicName, reply, resolveName }: QuoteBarProps) {
+  const messages = useTopicMessages(topicName);
+  const quoted: StoredMessage | undefined = useMemo(
+    () => messages.find((m) => typeof m.seq === 'number' && m.seq === reply.seq),
+    [messages, reply.seq],
+  );
+
+  const deleted = !!quoted && (isRecalled(quoted) || isServerDeleted(quoted));
+  // Local media is only usable when the quoted message is present AND alive -- a recalled message's
+  // thumbnail must not leak back through the quote bar (the snapshot is the only legal residue).
+  const localMedia = quoted && !deleted ? quotedMediaOf(quoted) : null;
+  const name = resolveName(quoted?.from || reply.from);
+
+  // Per the cross-client spec, only the media/card-like types render as placeholders; any unknown
+  // type is rendered as text using the snapshot body.
+  const MEDIA_LIKE_TYPES = new Set(['image', 'video', 'voice', 'file', 'contact_card', 'forward_bundle', 'sticker']);
+  const isTextLike = !MEDIA_LIKE_TYPES.has(reply.type);
+  // Real media affordances only when the local copy actually carries what they need: a usable image
+  // ref for image/video, a duration for voice. Otherwise fall back to the snapshot placeholder
+  // (exactly the iOS "取不到缩略图 → 名字：[图片]" / "取不到 → 名字：[语音]" behavior).
+  const hasThumb = !!localMedia && (localMedia.kind === 'image' || localMedia.kind === 'video') && !!localMedia.image;
+  const hasVoiceDuration = localMedia?.kind === 'voice' && typeof localMedia.durationMs === 'number' && localMedia.durationMs > 0;
+
+  const locate = () => {
+    useMessageJumpStore.getState().requestJump(topicName, reply.seq);
+  };
+
+  if (deleted) {
+    return (
+      <div
+        role="button"
+        tabIndex={0}
+        onClick={locate}
+        className="mb-1.5 truncate rounded border-l-2 border-text-tertiary-3 bg-black/[0.04] px-2 py-1 text-xs italic text-text-tertiary-3"
+      >
+        该消息已删除
+      </div>
+    );
+  }
+
+  return (
+    <div
+      role="button"
+      tabIndex={0}
+      onClick={locate}
+      title="查看原消息"
+      className="mb-1.5 flex max-w-full items-center gap-1.5 rounded border-l-2 border-accent bg-black/[0.04] px-2 py-1 text-xs text-[#4a4f57]"
+    >
+      <span className="max-w-[40%] flex-none truncate text-accent">{name}</span>
+      {hasThumb || hasVoiceDuration ? <MediaSummary media={localMedia as QuoteMedia} /> : null}
+      {isTextLike ? (
+        <span className="line-clamp-2 min-w-0 break-words">{reply.text}</span>
+      ) : (
+        <span className="min-w-0 truncate">{reply.text || placeholderForType(reply.type)}</span>
+      )}
+    </div>
+  );
+}

web/src/lib/messages/actions.ts

@@ -2,6 +2,7 @@ import type { StoredMessage } from 'tinode-sdk';
 
 import type { MessagePolicy } from '@/lib/api/bootstrap';
 import { callResultDisplay, contactCardContentOf, isRecalled, isServerDeleted } from '@/lib/messages/dispatch';
+import { canQuote } from '@/lib/messages/reply';
 
 /** SDK-internal placeholder seq threshold for a not-yet-server-confirmed message (tinode.dev.js's
  *  own `LOCAL_SEQID`, not exported as a Tinode static -- verified against source, not guessed). */
@@ -33,13 +34,26 @@ export function recallRemainingSeconds(msg: StoredMessage, myUserId: string | nu
  */
 export function availableActions(msg: StoredMessage, myUserId: string | null, messagePolicy: MessagePolicy | undefined): MessageAction[] {
   if (isServerDeleted(msg) || isRecalled(msg)) return [];
-  // 名片消息和通话结果消息are both flat, non-Drafty custom objects (dispatch.ts's own comments on
-  // contactCardContentOf/callResultDisplay), not something Drafty.toPlainText/replyContent/
-  // forwardedContent know how to handle -- copy/quote/forward would all feed a Drafty function an
-  // object it doesn't recognize, producing empty/malformed output rather than an error a user would
-  // notice. Favorite/delete/select don't re-parse content, so they stay safe for these two types.
-  const isNonDrafty = contactCardContentOf(msg) !== null || callResultDisplay(msg, !!myUserId && msg.from === myUserId) !== null;
-  const actions: MessageAction[] = isNonDrafty ? ['favorite'] : ['quote', 'copy', 'favorite', 'forward'];
+  // Contact-card and call-result messages are flat, non-Drafty custom objects dispatched by
+  // head['x-im-type'] (dispatch.ts), not bodies Drafty.toPlainText can handle -- "copy" stays off
+  // both. Quote/forward differ since the 2026-09-23 x-im-reply snapshot protocol represents the
+  // quoted message by {seq,type,text,from} rather than parsing its content: a contact card now
+  // quotes fine ([名片] snapshot). Call bubbles remain favorite-only -- a transient call result
+  // has no meaningful "forward/quote" semantics anywhere in the cross-client spec.
+  const isCard = contactCardContentOf(msg) !== null;
+  const isCall = callResultDisplay(msg, !!myUserId && msg.from === myUserId) !== null;
+  let actions: MessageAction[];
+  if (isCall) {
+    actions = ['favorite'];
+  } else if (isCard) {
+    actions = ['quote', 'favorite', 'forward'];
+  } else {
+    actions = ['quote', 'copy', 'favorite', 'forward'];
+  }
+  // Quote is additionally gated on the x-im-reply contract: no failed/pending messages, no
+  // system notices, positive confirmed seq (buildReplyInfo returns null otherwise, and the server
+  // would reject a malformed x-im-reply head outright).
+  if (!canQuote(msg)) actions = actions.filter((action) => action !== 'quote');
   // Defer to the server's own supported_actions list when it's present, so a server-side policy
   // change (recall disabled tenant-wide, say) doesn't leave the client offering an action that
   // will just 400 when tapped -- the time-window check below still applies on top of this.

web/src/lib/messages/reply.ts

@@ -0,0 +1,220 @@
+import { Drafty, type DraftyContent, type StoredMessage } from 'tinode-sdk';
+
+import { flatTextContentOf, isRecalled, isServerDeleted, mobileAttachmentContentOf, systemNoticeText } from '@/lib/messages/dispatch';
+
+/**
+ * Quoted-reply wire contract (`head["x-im-reply"]`), aligned with the iOS cross-client spec
+ * 《消息引用数据格式-跨端对接说明》 (2026-09-23) and the im_server contract landed in commit
+ * 3e92021 ("feat: support quoted message headers"):
+ *
+ *   { "seq": 128,            // NUMBER (positive int); a string seq makes iOS drop the quote bar
+ *     "type": "text",        // quoted message's x-im-type; unknown values render as text
+ *     "text": "摘要快照",     // full body for text (display side truncates); media = placeholder
+ *     "from": "usr..." }     // optional quoted sender uid; OMIT the key entirely when empty
+ *
+ * The snapshot lives in `head`, NEVER in `content`. The server validates the shape
+ * (non-empty type/text, positive integer seq, non-empty from when present) and rejects the whole
+ * message with ErrMalformed on violation, so builders here must never emit an empty/placeholder
+ * `from` or an invalid seq.
+ */
+export interface ReplyInfo {
+  seq: number;
+  type: string;
+  text: string;
+  from?: string;
+}
+
+/** SDK-internal placeholder seq threshold for a not-yet-server-confirmed message (mirrors
+ *  actions.ts's own LOCAL_SEQID; tinode.dev.js LOCAL_SEQID, not exported). */
+const LOCAL_SEQID = 0xfffffff;
+
+/** Media types whose snapshot text is a localized placeholder rather than a real body. */
+const MEDIA_TYPES = new Set(['image', 'video', 'voice', 'file']);
+
+const PLACEHOLDER_BY_TYPE: Record<string, string> = {
+  image: '[图片]',
+  video: '[视频]',
+  voice: '[语音]',
+  file: '[文件]',
+  contact_card: '[名片]',
+  forward_bundle: '[聊天记录]',
+  link: '[链接]',
+};
+
+const PLACEHOLDER_FALLBACK = '[消息]';
+
+/** Localized placeholder per quoted type (§7 of the cross-client spec). Unknown -> `[消息]`. */
+export function placeholderForType(type: string): string {
+  return PLACEHOLDER_BY_TYPE[type] ?? PLACEHOLDER_FALLBACK;
+}
+
+/** Legacy head `type` values seen in stored messages, mapped onto the product x-im-type enum. */
+const LEGACY_TYPE_MAP: Record<string, string> = {
+  audio: 'voice',
+};
+
+/** The effective product type of a message, read from head (`x-im-type` preferred over legacy
+ *  `type`). Falls back to "text" -- a message without an explicit type tag is a plain text body. */
+export function messageReplyType(msg: StoredMessage): string {
+  const head = msg.head;
+  const product = head?.['x-im-type'];
+  if (typeof product === 'string' && product.trim()) return product.trim();
+  const legacy = head?.['type'];
+  if (typeof legacy === 'string' && legacy.trim()) return LEGACY_TYPE_MAP[legacy.trim()] ?? legacy.trim();
+  return 'text';
+}
+
+/** Whether a message may be quoted at all: server-confirmed positive seq, not failed/pending,
+ *  not deleted/recalled, and not a centered system notice or a transient call-result bubble. */
+export function canQuote(msg: StoredMessage): boolean {
+  if (typeof msg.seq !== 'number' || !Number.isInteger(msg.seq) || msg.seq <= 0 || msg.seq >= LOCAL_SEQID) return false;
+  if (isServerDeleted(msg) || isRecalled(msg) || msg.content == null) return false;
+  const type = messageReplyType(msg);
+  if (type === 'system_notice' || type === 'system_action' || type === 'system_event' || type === 'call') return false;
+  // Belt and suspenders: systemNoticeText recognizes centered notices by head tag even if the type
+  // string ever drifts.
+  if (systemNoticeText(msg)) return false;
+  return true;
+}
+
+function draftyPlainText(content: StoredMessage['content']): string {
+  if (content == null) return '';
+  if (typeof content === 'string') return content;
+  return Drafty.toPlainText(content as DraftyContent).trim();
+}
+
+/** Snapshot text written into `x-im-reply.text` at send time: full text body for text-like
+ *  messages (no truncation -- the display side truncates), localized placeholder for media/card. */
+export function replySnapshotText(msg: StoredMessage, type: string = messageReplyType(msg)): string {
+  if (MEDIA_TYPES.has(type) || type === 'contact_card' || type === 'forward_bundle' || type === 'sticker') {
+    return placeholderForType(type);
+  }
+  const flat = flatTextContentOf(msg.content);
+  if (flat !== null) return flat.trim();
+  const plain = draftyPlainText(msg.content);
+  return plain || PLACEHOLDER_FALLBACK;
+}
+
+/** Builds the `x-im-reply` head value for an outgoing message, or null when the quoted message
+ *  is not quotable (caller must then refuse to arm the reply state). */
+export function buildReplyInfo(msg: StoredMessage): ReplyInfo | null {
+  if (!canQuote(msg)) return null;
+  const type = messageReplyType(msg);
+  const info: ReplyInfo = {
+    seq: msg.seq,
+    type,
+    text: replySnapshotText(msg, type),
+  };
+  // OMIT `from` when empty -- the server rejects an empty-string from as malformed.
+  if (typeof msg.from === 'string' && msg.from.trim()) info.from = msg.from.trim();
+  return info;
+}
+
+function asPositiveInt(value: unknown): number | null {
+  if (typeof value === 'number' && Number.isInteger(value) && value > 0) return value;
+  // Tolerant receive path: the spec suggests accepting numeric strings even though senders must
+  // write a real JSON number (a string seq is exactly what makes iOS fail to parse, but other
+  // clients' history may still carry one).
+  if (typeof value === 'string' && /^\d+$/.test(value.trim())) {
+    const n = Number(value.trim());
+    if (Number.isSafeInteger(n) && n > 0) return n;
+  }
+  return null;
+}
+
+function parseReplyValue(raw: unknown): ReplyInfo | null {
+  let value: unknown = raw;
+  if (typeof value === 'string') {
+    const trimmed = value.trim();
+    if (!trimmed) return null;
+    try {
+      value = JSON.parse(trimmed);
+    } catch {
+      return null;
+    }
+  }
+  if (!value || typeof value !== 'object' || Array.isArray(value)) return null;
+  const obj = value as Record<string, unknown>;
+  const seq = asPositiveInt(obj.seq);
+  if (seq == null) return null;
+  if (typeof obj.type !== 'string' || !obj.type.trim()) return null;
+  if (typeof obj.text !== 'string') return null;
+  const reply: ReplyInfo = { seq, type: obj.type.trim(), text: obj.text };
+  // Unknown types are kept as-is here; the display layer maps them onto text rendering.
+  if (typeof obj.from === 'string' && obj.from.trim()) reply.from = obj.from.trim();
+  return reply;
+}
+
+/** Parses a received message's `head["x-im-reply"]`, tolerating both object and JSON-string
+ *  carriers (iOS already accepts both) and any malformed shape -> null (no quote, never crash). */
+export function parseReplyHead(head: Record<string, unknown> | undefined): ReplyInfo | null {
+  if (!head) return null;
+  return parseReplyValue(head['x-im-reply']);
+}
+
+/** Media descriptor of a LOCALLY AVAILABLE quoted message, allowing the quote bar to render a
+ *  real thumbnail / voice duration instead of the text placeholder. Returns null when the quoted
+ *  message isn't in the local cache; the caller then renders the snapshot placeholder. */
+export interface QuoteMedia {
+  kind: 'image' | 'video' | 'voice' | 'file';
+  /** Image/video box: authenticated inline bits or a remote ref. */
+  image?: { val?: string; ref?: string; mime?: string };
+  /** Voice bubble: duration in milliseconds. */
+  durationMs?: number;
+}
+
+interface DraftyEntityDoc {
+  ent?: Array<{ tp?: string; data?: Record<string, unknown> }>;
+}
+
+function draftyEntityMedia(msg: StoredMessage): QuoteMedia | null {
+  const c = msg.content as DraftyContent | null;
+  if (!c || typeof c !== 'object') return null;
+  const doc = c as Partial<DraftyEntityDoc>;
+  if (!Array.isArray(doc.ent)) return null;
+  // Prefer the first matching media entity -- a quoted message carries one primary attachment.
+  for (const ent of doc.ent) {
+    const data = ent.data || {};
+    const asImage = () =>
+      (typeof data.ref === 'string' || typeof data.val === 'string')
+        ? { image: { ref: typeof data.ref === 'string' ? data.ref : undefined, val: typeof data.val === 'string' ? data.val : undefined, mime: typeof data.mime === 'string' ? data.mime : undefined } }
+        : null;
+    switch (ent.tp) {
+      case 'IM': {
+        const image = asImage();
+        if (image) return { kind: 'image', ...image };
+        break;
+      }
+      case 'VD': {
+        const image = asImage();
+        if (image) return { kind: 'video', ...image };
+        break;
+      }
+      case 'AU': {
+        const durationMs = typeof data.duration === 'number' ? data.duration : undefined;
+        return { kind: 'voice', durationMs };
+      }
+      case 'EX':
+        return { kind: 'file' };
+      default:
+        break;
+    }
+  }
+  return null;
+}
+
+/** Resolves locally-renderable media for a quoted message (mobile flat content or web Drafty
+ *  entities). Null when the message is text/not locally available in a recognizable shape. */
+export function quotedMediaOf(msg: StoredMessage | undefined): QuoteMedia | null {
+  if (!msg || msg.content == null) return null;
+  const mobile = mobileAttachmentContentOf(msg);
+  if (mobile) {
+    if (mobile.kind === 'image' || mobile.kind === 'video') {
+      const ref = mobile.previewRef || mobile.ref;
+      return ref ? { kind: mobile.kind, image: { ref, mime: mobile.mime } } : { kind: mobile.kind };
+    }
+    if (mobile.kind === 'voice') return { kind: 'voice', durationMs: mobile.duration };
+    return { kind: 'file' };
+  }
+  return draftyEntityMedia(msg);
+}

web/src/lib/tinode/attachments.ts

@@ -2,6 +2,7 @@ import { Drafty, type Topic } from 'tinode-sdk';
 
 import { uploadFile, upgradeToHttps } from '@/lib/api/upload';
 import { MAX_INBAND_ATTACHMENT_SIZE } from '@/lib/config';
+import type { ReplyInfo } from '@/lib/messages/reply';
 import { newClientMid, publishWithReattach } from '@/lib/tinode/send';
 
 function fileToBase64(file: File): Promise<string> {
@@ -29,6 +30,14 @@ function imageDimensions(file: File): Promise<{ width: number; height: number }>
   });
 }
 
+/** Merges the standard send headers with the optional pending quoted-reply snapshot, so media
+ *  messages armed with a quote carry the same `x-im-reply` head as text replies. */
+function mediaHead(type: string, reply?: ReplyInfo | null): Record<string, unknown> {
+  const head: Record<string, unknown> = { 'x-im-type': type, 'x-im-client-mid': newClientMid() };
+  if (reply) head['x-im-reply'] = reply;
+  return head;
+}
+
 /**
  * Small files go inline as base64 (Drafty.insertImage's `bits` field) -- no upload round trip at
  * all. Larger ones upload first, then reference the returned URL (`refurl`). Simplified from the
@@ -36,7 +45,7 @@ function imageDimensions(file: File): Promise<{ width: number; height: number }>
  * the upload happen in the background): this awaits the upload before creating the message at all,
  * trading that "shows immediately while uploading" nicety for meaningfully simpler code.
  */
-export async function sendImage(topic: Topic, file: File): Promise<unknown> {
+export async function sendImage(topic: Topic, file: File, reply?: ReplyInfo | null): Promise<unknown> {
   const { width, height } = await imageDimensions(file);
   const content =
     file.size <= MAX_INBAND_ATTACHMENT_SIZE
@@ -50,17 +59,17 @@ export async function sendImage(topic: Topic, file: File): Promise<unknown> {
           size: file.size,
         });
   const msg = topic.createMessage(content, false);
-  msg.head = Object.assign(msg.head || {}, { 'x-im-type': 'image', 'x-im-client-mid': newClientMid() });
+  msg.head = Object.assign(msg.head || {}, mediaHead('image', reply));
   return publishWithReattach(topic, msg);
 }
 
-export async function sendFile(topic: Topic, file: File): Promise<unknown> {
+export async function sendFile(topic: Topic, file: File, reply?: ReplyInfo | null): Promise<unknown> {
   const content =
     file.size <= MAX_INBAND_ATTACHMENT_SIZE
       ? Drafty.attachFile(undefined, { mime: file.type, data: await fileToBase64(file), filename: file.name, size: file.size })
       : Drafty.attachFile(undefined, { mime: file.type, refurl: upgradeToHttps((await uploadFile(file, topic.name)).url), filename: file.name, size: file.size });
   const msg = topic.createMessage(content, false);
-  msg.head = Object.assign(msg.head || {}, { 'x-im-type': 'file', 'x-im-client-mid': newClientMid() });
+  msg.head = Object.assign(msg.head || {}, mediaHead('file', reply));
   return publishWithReattach(topic, msg);
 }
 
@@ -72,7 +81,7 @@ export async function sendFile(topic: Topic, file: File): Promise<unknown> {
  * field this app actually displays from doesn't depend on it, only a browser's native <audio>
  * scrubber would).
  */
-export async function sendVoice(topic: Topic, blob: Blob, durationMs: number): Promise<unknown> {
+export async function sendVoice(topic: Topic, blob: Blob, durationMs: number, reply?: ReplyInfo | null): Promise<unknown> {
   const file = new File([blob], `voice.${blob.type.includes('mp4') ? 'm4a' : 'webm'}`, { type: blob.type });
   const content =
     file.size <= MAX_INBAND_ATTACHMENT_SIZE
@@ -85,6 +94,6 @@ export async function sendVoice(topic: Topic, blob: Blob, durationMs: number): P
           filename: file.name,
         });
   const msg = topic.createMessage(content, false);
-  msg.head = Object.assign(msg.head || {}, { 'x-im-type': 'voice', 'x-im-client-mid': newClientMid() });
+  msg.head = Object.assign(msg.head || {}, mediaHead('voice', reply));
   return publishWithReattach(topic, msg);
 }

web/src/lib/tinode/send.ts

@@ -1,6 +1,6 @@
 import { Drafty, type DraftyContent, type StoredMessage, type Topic } from 'tinode-sdk';
 
-import { QUOTED_REPLY_LENGTH } from '@/lib/config';
+import { buildReplyInfo } from '@/lib/messages/reply';
 
 function toDraftyContent(content: DraftyContent | string | null | undefined): DraftyContent {
   if (content == null) return Drafty.init('');
@@ -85,9 +85,11 @@ export function sendPrebuiltContent(topic: Topic, content: DraftyContent | strin
  * cache (already flushed, or never existed).
  *
  * Reuses the ORIGINAL failed message's own `x-im-client-mid` rather than minting a fresh one -- see
- * newClientMid()'s own comment above for why a retry specifically must not get a new id. Falls back
- * to a fresh one only for a locally-cached failed message from before this field existed at all
- * (there's no original id to recover in that one case).
+ * newClientMid()'s own comment above for why a retry specifically must not get a new id. The whole
+ * original head is copied verbatim, which also keeps `x-im-reply` identical across retries (the
+ * server requires head parity for a mid-deduped resend). Falls back to a fresh one only for a
+ * locally-cached failed message from before this field existed at all (no original id to recover
+ * in that one case).
  */
 export function retryMessage(topic: Topic, seq: number): Promise<unknown> | undefined {
   const failed = topic.flushMessage(seq);
@@ -105,20 +107,20 @@ export function messageIsMine(msg: StoredMessage, myUserId: string | null): bool
 }
 
 /**
- * Reply/quote (old app's messages-view.jsx handlePickReply/sendMessage): the quoted body is
- * truncated (Drafty.replyContent, QUOTED_REPLY_LENGTH) and wrapped with the sender's name
- * (Drafty.quote), then the whole quote block is INLINED into the outgoing content ahead of the
- * new text (Drafty.append) -- the receiving side never has to look up the original message to show
- * a quote preview. `head.reply` carries the original seq separately, purely so a click on the quote
- * block can scroll back to it.
+ * Quoted reply (cross-client `x-im-reply` contract, aligned with iOS 2026-09-23): the quote is a
+ * lightweight SNAPSHOT carried in `head["x-im-reply"]` (`{seq,type,text,from}`), NOT a Drafty QQ
+ * block inlined into the content -- content stays the clean reply body. The receiving side renders
+ * its own quote bar and locally re-fetches thumbnails/durations by seq. Builds the snapshot from
+ * the quoted message via buildReplyInfo(); throws when the message isn't quotable (failed/pending/
+ * system notice), which the UI gates before arming the reply state.
  */
-export function sendReply(topic: Topic, text: string, quoted: StoredMessage, quotedSenderLabel: string): Promise<unknown> {
-  const trimmed = Drafty.replyContent(toDraftyContent(quoted.content), QUOTED_REPLY_LENGTH);
-  const quoteBlock = Drafty.quote(quotedSenderLabel, quoted.from || '', trimmed);
-  const sanitized = Drafty.sanitizeEntities(JSON.parse(JSON.stringify(quoteBlock)) as DraftyContent);
-  const finalContent = Drafty.append(sanitized, Drafty.parse(text));
-  const msg = topic.createMessage(finalContent, false);
-  msg.head = Object.assign(msg.head || {}, { reply: String(quoted.seq), 'x-im-client-mid': newClientMid() });
+export function sendReply(topic: Topic, text: string, quoted: StoredMessage): Promise<unknown> {
+  const reply = buildReplyInfo(quoted);
+  if (!reply) throw new Error('该消息不可引用');
+  const parsed = Drafty.parse(text);
+  const content: DraftyContent | string = Drafty.isPlainText(parsed) ? text : parsed;
+  const msg = topic.createMessage(content, false);
+  msg.head = Object.assign(msg.head || {}, { 'x-im-reply': reply, 'x-im-client-mid': newClientMid() });
   return publishWithReattach(topic, msg);
 }
 

web/vite.config.ts

@@ -27,8 +27,8 @@ export default defineConfig({
     // straight to the tenant's real host regardless (confirmed working this way throughout the old
     // app's development too).
     proxy: {
-      '/v1/im': { target: 'https://api.118im.com', changeOrigin: true, secure: true },
-      '/v0/file': { target: 'https://api.118im.com', changeOrigin: true, secure: true },
+      '/v1/im': { target: 'http://127.0.0.1:6060', changeOrigin: true, secure: false },
+      '/v0/file': { target: 'http://127.0.0.1:6060', changeOrigin: true, secure: false },
     },
   },
 })