feat: add sns cover for user

frontend/pages/sns.vue

@@ -5,8 +5,14 @@
       <div class="flex-1 overflow-auto min-h-0 bg-white" @scroll="onScroll">
 	        <div class="max-w-2xl mx-auto px-4 py-4">
             <div class="relative w-full mb-12 -mt-4 bg-white">
-              <div class="h-64 w-full bg-[#333333] object-cover"></div>
+              <div class="h-64 w-full bg-[#333333] relative overflow-hidden">
-
+                <img
+                    v-if="coverData && coverData.media && coverData.media.length > 0"
+                    :src="getSnsMediaUrl(coverData, coverData.media[0], 0, coverData.media[0].url)"
+                    class="w-full h-full object-cover"
+                    alt="朋友圈封面"
+                />
+              </div>
               <div class="absolute right-4 -bottom-6 flex items-end gap-4">
                 <div class="text-white font-bold text-xl mb-7 drop-shadow-md">
                   {{ selfInfo.nickname || '获取中...' }}
@@ -26,9 +32,14 @@
                 </div>
               </div>
             </div>
-	          <div v-if="error" class="text-sm text-red-500 whitespace-pre-wrap py-2">{{ error }}</div>
+            <div v-if="error" class="text-sm text-red-500 whitespace-pre-wrap py-4 text-center">{{ error }}</div>
-	          <div v-else-if="isLoading && posts.length === 0" class="text-sm text-gray-500 py-2">加载中…</div>
+
-	          <div v-else-if="posts.length === 0" class="text-sm text-gray-500 py-2">暂无朋友圈数据</div>
+            <div v-else-if="isLoading && posts.length === 0" class="flex flex-col items-center justify-center py-16">
+              <div class="w-8 h-8 border-[3px] border-gray-200 border-t-[#576b95] rounded-full animate-spin"></div>
+              <div class="mt-4 text-sm text-gray-400">正在前往朋友圈...</div>
+            </div>
+
+            <div v-else-if="posts.length === 0" class="text-sm text-gray-400 py-16 text-center">暂无朋友圈数据</div>
 
 
 	          <div v-for="post in posts" :key="post.id" class="bg-white rounded-sm px-4 py-4 mb-3">
@@ -327,6 +338,8 @@ const hasMore = ref(true)
 const isLoading = ref(false)
 const error = ref('')
 
+const coverData = ref(null)
+
 const pageSize = 20
 
 const mediaBase = process.client ? 'http://localhost:8000' : ''
@@ -782,10 +795,12 @@ const loadPosts = async ({ reset }) => {
       offset
     })
     const items = resp?.timeline || []
+
     if (reset) {
-      posts.value = items
+      posts.value = items.filter(p => p.type !== 7)
+      coverData.value = resp?.cover || null
     } else {
-      posts.value = [...posts.value, ...items]
+      posts.value = [...posts.value, ...items.filter(p => p.type !== 7)]
     }
     hasMore.value = !!resp?.hasMore
   } catch (e) {

src/wechat_decrypt_tool/routers/sns.py

@@ -763,6 +763,54 @@ def _list_sns_cached_image_candidate_keys(
 
     return tuple(out)
 
+def _get_sns_cover(account_dir: Path, target_wxid: str) -> Optional[dict[str, Any]]:
+    """无论多古老，强行揪出用户最近的一次朋友圈封面 (type=7)"""
+    cover_sql = f"SELECT tid, content FROM SnsTimeLine WHERE user_name = '{target_wxid}' AND content LIKE '%<type>7</type>%' ORDER BY tid DESC LIMIT 1"
+    cover_xml = None
+    cover_tid = None
+
+    try:
+        if WCDB_REALTIME.is_connected(account_dir.name):
+            conn = WCDB_REALTIME.ensure_connected(account_dir)
+            with conn.lock:
+                sns_db_path = conn.db_storage_dir / "sns" / "sns.db"
+                if not sns_db_path.exists():
+                    sns_db_path = conn.db_storage_dir / "sns.db"
+                # 利用 exec_query 强行查
+                rows = _wcdb_exec_query(conn.handle, kind="media", path=str(sns_db_path), sql=cover_sql)
+                if rows:
+                    cover_xml = rows[0].get("content")
+                    cover_tid = rows[0].get("tid")
+    except Exception as e:
+        logger.warning(f"[sns] WCDB cover fetch failed: {e}")
+
+    # 2. 如果没查到，降级从本地解密的 sns.db 查
+    if not cover_xml:
+        sns_db_path = account_dir / "sns.db"
+        if sns_db_path.exists():
+            try:
+                # 只读模式防止锁死
+                conn_sq = sqlite3.connect(f"file:{sns_db_path}?mode=ro", uri=True)
+                conn_sq.row_factory = sqlite3.Row
+                row = conn_sq.execute(cover_sql).fetchone()
+                if row:
+                    cover_xml = str(row["content"] or "")
+                    cover_tid = row["tid"]
+                conn_sq.close()
+            except Exception as e:
+                logger.warning(f"[sns] SQLite cover fetch failed: {e}")
+
+    if cover_xml:
+        parsed = _parse_timeline_xml(cover_xml, target_wxid)
+        return {
+            "id": str(cover_tid or ""),
+            "media": parsed.get("media", []),
+            "type": 7
+        }
+    return None
+
+
+
 
 @router.get("/api/sns/self_info", summary="获取个人信息（wxid和nickname）")
 def api_sns_self_info(account: Optional[str] = None):
@@ -864,6 +912,11 @@ def list_sns_timeline(
     users = _parse_csv_list(usernames)
     kw = str(keyword or "").strip()
 
+    cover_data = None
+    if offset == 0:
+        target_wxid = users[0] if users else account_dir.name
+        cover_data = _get_sns_cover(account_dir, target_wxid)
+
     # Prefer real-time WCDB access (reads the latest encrypted db_storage/sns/sns.db).
     # Fallback to the decrypted sqlite copy in output/{account}/sns.db.
     try:
@@ -962,6 +1015,10 @@ def list_sns_timeline(
                         location = str(parsed.get("location") or "")
 
                     post_type = parsed.get("type", 1)
+
+                    if post_type == 7:  #  朋友圈封面
+                        continue
+
                     title = parsed.get("title", "")
                     content_url = parsed.get("contentUrl", "")
                     finder_feed = parsed.get("finderFeed", {})
@@ -1009,7 +1066,14 @@ def list_sns_timeline(
                 }
             )
 
-        return {"timeline": timeline, "hasMore": has_more, "limit": limit, "offset": offset, "source": "wcdb"}
+        return {
+            "timeline": timeline,
+            "hasMore": has_more,
+            "limit": limit,
+            "offset": offset,
+            "source": "wcdb",
+            "cover": cover_data,
+        }
     except WCDBRealtimeError as e:
         logger.info("[sns] wcdb realtime unavailable: %s", e)
     except Exception as e:
@@ -1089,7 +1153,13 @@ def list_sns_timeline(
             }
         )
 
-    return {"timeline": timeline, "hasMore": has_more, "limit": limit, "offset": offset}
+    return {
+        "timeline": timeline,
+        "hasMore": has_more,
+        "limit": limit,
+        "offset": offset,
+        "cover": cover_data,
+    }
 
 
 class SnsMediaPicksSaveRequest(BaseModel):
@@ -1144,8 +1214,8 @@ async def get_sns_media(
         avoid_picked: int = 0,
         post_id: Optional[str] = None,
         media_id: Optional[str] = None,
-        post_type: int = 1,   # <--- 接收前端传来的 post_type
+        post_type: int = 1,
-        media_type: int = 2,  # <--- 接收前端传来的 media_type
+        media_type: int = 2,
         pick: Optional[str] = None,
         md5: Optional[str] = None,
         url: Optional[str] = None,
@@ -1154,6 +1224,17 @@ async def get_sns_media(
     wxid_dir = _resolve_account_wxid_dir(account_dir)
 
     if wxid_dir and post_id and media_id:
+        if int(post_type) == 7:
+            raw_key = f"{post_id}_{media_id}_4"  # 硬编码
+
+            md5_str = hashlib.md5(raw_key.encode("utf-8")).hexdigest()
+            bkg_path = wxid_dir / "business" / "sns" / "bkg" / md5_str[:2] / md5_str
+
+            if bkg_path.exists() and bkg_path.is_file():
+                print(f"===== Hit Bkg Cover ======= {bkg_path}")
+
+                return FileResponse(bkg_path, media_type="image/jpeg",
+                                    headers={"Cache-Control": "public, max-age=31536000"})
         exact_match_path = None
         hit_type = ""