api/.flake8

@@ -1,4 +1,4 @@
 [flake8]
 max-line-length = 80
-extend-select = B950
-extend-ignore = E203,E501
+select = C,E,F,W,B,B950
+extend-ignore = E203, E501

api/.isort.cfg

@@ -1,3 +0,0 @@
-[settings]
-profile = black
-line_length = 80

api/advent22_api/core/depends.py

@@ -24,8 +24,6 @@ from .helpers import (
     set_len,
 )
 
-RE_NUM = re.compile(r"/(\d+)\.", flags=re.IGNORECASE)
-
 
 async def get_all_sorted_days(
     cal_cfg: CalendarConfig = Depends(get_calendar_config),
@@ -111,10 +109,11 @@ async def get_all_manual_image_names(
     Bilder: "manual" zuordnen
     """
 
+    num_re = re.compile(r"/(\d+)\.", flags=re.IGNORECASE)
     return {
         int(num_match.group(1)): name
         for name in manual_image_names
-        if (num_match := RE_NUM.search(name)) is not None
+        if (num_match := num_re.search(name)) is not None
     }
 
 

api/advent22_api/core/helpers.py

@@ -1,4 +1,3 @@
-import base64
 import itertools
 import random
 import re
@@ -6,9 +5,9 @@ from datetime import date, datetime, timedelta
 from io import BytesIO
 from typing import Any, Awaitable, Callable, Iterable, Self, Sequence, TypeVar
 
+from fastapi.responses import StreamingResponse
 from PIL import Image as PILImage
 from PIL.Image import Image, Resampling
-from pydantic import BaseModel
 
 from .config import get_config
 from .dav.webdav import WebDAV
@@ -116,51 +115,25 @@ async def load_image(file_name: str) -> Image:
     return PILImage.open(BytesIO(await WebDAV.read_bytes(file_name)))
 
 
-class ImageData(BaseModel):
-    width: int
-    height: int
-    aspect_ratio: float
-    data_url: str
-
-    @classmethod
-    def create(
-        cls,
-        *,
-        media_type: str,
-        content: BytesIO,
-        width: int,
-        height: int,
-    ) -> Self:
-        img_data = base64.b64encode(content.getvalue()).decode("utf-8")
-
-        return cls(
-            width=width,
-            height=height,
-            aspect_ratio=width / height,
-            data_url=f"data:{media_type};base64,{img_data}",
-        )
-
-
-async def api_return_ico(img: Image) -> ImageData:
+async def api_return_ico(img: Image) -> StreamingResponse:
     """
     ICO-Bild mit API zurückgeben
     """
 
-    # ICO-Daten in Puffer speichern (256px)
+    # JPEG-Daten in Puffer speichern
     img_buffer = BytesIO()
     img.resize(size=(256, 256), resample=Resampling.LANCZOS)
     img.save(img_buffer, format="ICO")
+    img_buffer.seek(0)
 
     # zurückgeben
-    return ImageData.create(
+    return StreamingResponse(
         media_type="image/x-icon",
         content=img_buffer,
-        width=img.width,
-        height=img.height,
     )
 
 
-async def api_return_jpeg(img: Image) -> ImageData:
+async def api_return_jpeg(img: Image) -> StreamingResponse:
     """
     JPEG-Bild mit API zurückgeben
     """
@@ -168,13 +141,12 @@ async def api_return_jpeg(img: Image) -> ImageData:
     # JPEG-Daten in Puffer speichern
     img_buffer = BytesIO()
     img.save(img_buffer, format="JPEG", quality=85)
+    img_buffer.seek(0)
 
     # zurückgeben
-    return ImageData.create(
+    return StreamingResponse(
         media_type="image/jpeg",
         content=img_buffer,
-        width=img.width,
-        height=img.height,
     )
 
 

api/advent22_api/routers/user.py

@@ -1,31 +1,25 @@
 from datetime import datetime
 
 from fastapi import APIRouter, Depends, HTTPException, status
+from fastapi.responses import StreamingResponse
 from PIL.Image import Image
 
-from ..core.calendar_config import (
-    CalendarConfig,
-    DoorsSaved,
-    get_calendar_config,
-)
+from ..core.calendar_config import CalendarConfig, DoorsSaved, get_calendar_config
 from ..core.config import Config, Site, get_config
 from ..core.depends import get_all_event_dates, get_day_image
-from ..core.helpers import (
-    EventDates,
-    ImageData,
-    api_return_ico,
-    api_return_jpeg,
-    load_image,
-)
+from ..core.helpers import EventDates, api_return_ico, api_return_jpeg, load_image
 from ._security import user_can_view_day, user_is_admin, user_visible_days
 
 router = APIRouter(prefix="/user", tags=["user"])
 
 
-@router.get("/background_image")
+@router.get(
+    "/background_image",
+    response_class=StreamingResponse,
+)
 async def get_background_image(
     cal_cfg: CalendarConfig = Depends(get_calendar_config),
-) -> ImageData:
+) -> StreamingResponse:
     """
     Hintergrundbild laden
     """
@@ -33,10 +27,13 @@ async def get_background_image(
     return await api_return_jpeg(await load_image(f"files/{cal_cfg.background}"))
 
 
-@router.get("/favicon")
+@router.get(
+    "/favicon",
+    response_class=StreamingResponse,
+)
 async def get_favicon(
     cal_cfg: CalendarConfig = Depends(get_calendar_config),
-) -> ImageData:
+) -> StreamingResponse:
     """
     Favicon laden
     """
@@ -71,12 +68,15 @@ async def get_doors(
     return [door for door in cal_cfg.doors if door.day in visible_days]
 
 
-@router.get("/image_{day}")
+@router.get(
+    "/image_{day}",
+    response_class=StreamingResponse,
+)
 async def get_image_for_day(
     user_can_view: bool = Depends(user_can_view_day),
     is_admin: bool = Depends(user_is_admin),
     image: Image | None = Depends(get_day_image),
-) -> ImageData:
+) -> StreamingResponse:
     """
     Bild für einen Tag erstellen
     """