backend optimizations + redundant commits cleanup

api/v2/routes/web.py

@@ -40,6 +40,10 @@ from logger import logger
 UPLOAD_DIR = Path("static/web_uploads")
 ALLOWED_EXTENSIONS = frozenset({".png", ".jpg", ".jpeg", ".gif", ".webp", ".svg", ".mp4", ".webm"})
 MAX_FILE_SIZE = 100 * 1024 * 1024
+_IMAGE_RESIZE_EXTENSIONS = frozenset({".png", ".jpg", ".jpeg", ".webp"})
+_IMAGE_MAX_SIDE = 2048
+_IMAGE_JPEG_QUALITY = 85
+_IMAGE_WEBP_QUALITY = 85
 
 _SLUG_RE = re.compile(r"^[a-z0-9][a-z0-9\-]*$")
 
@@ -55,6 +59,39 @@ EXTENSION_CONTENT_TYPES: dict[str, frozenset[str]] = {
 }
 
 
+def _optimize_image_bytes(data: bytes, ext: str) -> bytes:
+    """Уменьшает большие картинки до _IMAGE_MAX_SIDE и пережимает с разумным качеством."""
+    try:
+        from io import BytesIO
+
+        from PIL import Image, ImageOps
+
+        with Image.open(BytesIO(data)) as img:
+            img = ImageOps.exif_transpose(img)
+            w, h = img.size
+            if max(w, h) <= _IMAGE_MAX_SIDE and len(data) < 500_000:
+                return data
+            if max(w, h) > _IMAGE_MAX_SIDE:
+                img.thumbnail((_IMAGE_MAX_SIDE, _IMAGE_MAX_SIDE), Image.Resampling.LANCZOS)
+            buffer = BytesIO()
+            save_kwargs: dict = {}
+            if ext in (".jpg", ".jpeg"):
+                if img.mode not in ("RGB", "L"):
+                    img = img.convert("RGB")
+                save_kwargs = {"format": "JPEG", "quality": _IMAGE_JPEG_QUALITY, "optimize": True, "progressive": True}
+            elif ext == ".webp":
+                save_kwargs = {"format": "WEBP", "quality": _IMAGE_WEBP_QUALITY, "method": 6}
+            elif ext == ".png":
+                save_kwargs = {"format": "PNG", "optimize": True}
+            else:
+                return data
+            img.save(buffer, **save_kwargs)
+            optimized = buffer.getvalue()
+            return optimized if len(optimized) < len(data) else data
+    except Exception:
+        return data
+
+
 def _sanitize_svg(data: bytes) -> bytes:
     import re as _re
 
@@ -529,6 +566,10 @@ async def upload_media(
     file_data = b"".join(chunks)
     if ext == ".svg":
         file_data = _sanitize_svg(file_data)
+    elif ext in _IMAGE_RESIZE_EXTENSIONS:
+        from core.executor import run_cpu
+
+        file_data = await run_cpu(_optimize_image_bytes, file_data, ext)
     with open(path, "wb") as f:
         f.write(file_data)
     url = f"/api/web/uploads/{name}"