Отображение истории

README.md

@@ -91,6 +91,7 @@ http://192.168.31.158:8099
 - фильтр по Telegram `user_id` (с подсказкой известных пользователей);
 - фильтр по статусу и режиму (`t2i`/`i2i`);
 - пагинация;
+- превью результата в списке (кэшируются в `storage/.thumbnails`);
 - карточка запроса с полным промптом, ошибкой, seed и изображениями.
 
 Доступ только с локальной сети: Compose публикует порт на `WEB_BIND_IP`. Для доступа из LAN:

checklist.md

@@ -297,6 +297,7 @@ ON requests(user_id) WHERE status IN ('queued', 'running');
 
 - [x] `web.py`: FastAPI + Jinja2, отдельный контейнер `web`.
 - [x] Список запросов с фильтрами `user_id`, `status`, `mode` и пагинацией.
+- [x] Превью результата в списке, генерация и кэш в `storage/.thumbnails`.
 - [x] Карточка запроса: промпт, seed, ошибка, `comfy_prompt_id`, вход/результат.
 - [x] Отдача изображений только из `STORAGE_DIR` (защита от path traversal).
 - [x] Доступ только из локальной сети: публикация на `WEB_BIND_IP`, без авторизации.

requirements.txt

@@ -6,3 +6,4 @@ python-dotenv>=1.0,<2
 fastapi>=0.115,<1
 uvicorn>=0.30,<1
 jinja2>=3.1,<4
+pillow>=10,<13

tests/test_web.py

@@ -4,6 +4,7 @@ import sqlite3
 from pathlib import Path
 
 from fastapi.testclient import TestClient
+from PIL import Image
 
 from config import Settings
 from web import create_app
@@ -70,7 +71,8 @@ def test_detail_and_media(tmp_path: Path) -> None:
     settings = make_settings(tmp_path)
     output = settings.storage_dir / "1" / "1_output.png"
     output.parent.mkdir(parents=True)
-    output.write_bytes(b"fake-png")
+    with Image.new("RGB", (320, 200), (180, 40, 40)) as image:
+        image.save(output)
 
     app = create_app(settings)
     with TestClient(app) as client:
@@ -85,9 +87,17 @@ def test_detail_and_media(tmp_path: Path) -> None:
         assert detail.status_code == 200
         assert "detail prompt" in detail.text
 
+        index = client.get("/")
+        assert f"/thumb/{request_id}" in index.text
+
         media = client.get(f"/media/{request_id}/output")
         assert media.status_code == 200
-        assert media.content == b"fake-png"
+        assert media.content.startswith(b"\x89PNG")
+
+        thumb = client.get(f"/thumb/{request_id}")
+        assert thumb.status_code == 200
+        assert thumb.headers["content-type"] == "image/jpeg"
+        assert thumb.content.startswith(b"\xff\xd8")
 
         missing = client.get(f"/media/{request_id}/input")
         assert missing.status_code == 404

web.py

@@ -1,16 +1,21 @@
 from __future__ import annotations
 
+import asyncio
+import logging
 import math
+import os
 from contextlib import asynccontextmanager
 from datetime import datetime
 from pathlib import Path
 from typing import Any
 from urllib.parse import urlencode
+from uuid import uuid4
 
 from fastapi import FastAPI, HTTPException, Request
 from fastapi.responses import FileResponse, HTMLResponse
 from fastapi.staticfiles import StaticFiles
 from fastapi.templating import Jinja2Templates
+from PIL import Image, ImageOps
 
 from config import Settings
 from db import Database
@@ -23,6 +28,37 @@ STATIC_DIR = BASE_DIR / "web" / "static"
 STATUSES = ("queued", "running", "done", "failed")
 MODES = ("t2i", "i2i")
 
+logger = logging.getLogger(__name__)
+
+
+def _safe_storage_path(raw_path: str, storage_root: Path) -> Path | None:
+    path = Path(raw_path).resolve()
+    try:
+        path.relative_to(storage_root)
+    except ValueError:
+        return None
+    return path
+
+
+def _make_thumbnail(source: Path, destination: Path) -> None:
+    destination.parent.mkdir(parents=True, exist_ok=True)
+    temp_path = destination.with_name(f"{destination.name}.{uuid4().hex}.tmp")
+    try:
+        with Image.open(source) as image:
+            image = ImageOps.exif_transpose(image)
+            image.thumbnail((320, 320))
+            if image.mode in {"RGBA", "LA"} or "transparency" in image.info:
+                rgba = image.convert("RGBA")
+                background = Image.new("RGB", rgba.size, (15, 17, 21))
+                background.paste(rgba, mask=rgba.getchannel("A"))
+                image = background
+            else:
+                image = image.convert("RGB")
+            image.save(temp_path, format="JPEG", quality=85, optimize=True)
+        os.replace(temp_path, destination)
+    finally:
+        temp_path.unlink(missing_ok=True)
+
 
 def fmt_dt(value: str | None) -> str:
     if not value:
@@ -163,15 +199,45 @@ def create_app(settings: Settings | None = None) -> FastAPI:
             raise HTTPException(status_code=404, detail="Файл не найден")
 
         storage_root = settings.storage_dir.resolve()
-        path = Path(raw_path).resolve()
-        try:
-            path.relative_to(storage_root)
-        except ValueError:
-            raise HTTPException(status_code=404, detail="Файл не найден") from None
-        if not path.is_file():
+        path = _safe_storage_path(raw_path, storage_root)
+        if path is None or not path.is_file():
             raise HTTPException(status_code=404, detail="Файл не найден")
         return FileResponse(path)
 
+    @app.get("/thumb/{request_id}")
+    async def thumbnail(request: Request, request_id: int):
+        db: Database = request.app.state.db
+        settings: Settings = request.app.state.settings
+        item: HistoryRequest | None = await db.get_request(request_id)
+        if item is None or not item.output_file_path:
+            raise HTTPException(status_code=404, detail="Файл не найден")
+
+        storage_root = settings.storage_dir.resolve()
+        source = _safe_storage_path(item.output_file_path, storage_root)
+        if source is None or not source.is_file():
+            raise HTTPException(status_code=404, detail="Файл не найден")
+
+        cache_dir = storage_root / ".thumbnails"
+        cache_path = cache_dir / f"{request_id}.jpg"
+        if cache_path.is_file() and cache_path.stat().st_mtime >= source.stat().st_mtime:
+            return FileResponse(
+                cache_path,
+                media_type="image/jpeg",
+                headers={"Cache-Control": "public, max-age=3600"},
+            )
+
+        try:
+            await asyncio.to_thread(_make_thumbnail, source, cache_path)
+        except Exception:
+            logger.exception("Не удалось создать превью для запроса %s", request_id)
+            return FileResponse(source)
+
+        return FileResponse(
+            cache_path,
+            media_type="image/jpeg",
+            headers={"Cache-Control": "public, max-age=3600"},
+        )
+
     return app
 
 

web/static/style.css

@@ -120,6 +120,17 @@ tbody tr:last-child td { border-bottom: 0; }
 .empty { text-align: center; color: var(--muted); padding: 28px; }
 .details { white-space: nowrap; }
 
+.thumb-cell { width: 78px; }
+.thumb {
+  width: 64px;
+  height: 64px;
+  object-fit: cover;
+  display: block;
+  border-radius: 8px;
+  border: 1px solid var(--border);
+  background: var(--panel-2);
+}
+
 .badge {
   display: inline-block;
   padding: 2px 8px;

web/templates/index.html

@@ -52,6 +52,7 @@
     <thead>
       <tr>
         <th>ID</th>
+        <th>Превью</th>
         <th>Дата</th>
         <th>Пользователь</th>
         <th>Режим</th>
@@ -65,6 +66,15 @@
       {% for item in rows %}
       <tr>
         <td class="mono">#{{ item.id }}</td>
+        <td class="thumb-cell">
+          {% if item.output_file_path %}
+          <a href="/media/{{ item.id }}/output" target="_blank" rel="noreferrer">
+            <img class="thumb" src="/thumb/{{ item.id }}" alt="Результат #{{ item.id }}" loading="lazy">
+          </a>
+          {% else %}
+          <span class="muted">—</span>
+          {% endif %}
+        </td>
         <td class="nowrap">{{ item.timestamp|fmt_dt }}</td>
         <td><a href="/?user_id={{ item.user_id }}">{{ item.user_id }}</a></td>
         <td class="mono">{{ item.mode }}</td>
@@ -74,7 +84,7 @@
         <td><a class="details" href="/request/{{ item.id }}">Детали</a></td>
       </tr>
       {% else %}
-      <tr><td colspan="8" class="empty">Ничего не найдено</td></tr>
+      <tr><td colspan="9" class="empty">Ничего не найдено</td></tr>
       {% endfor %}
     </tbody>
   </table>