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image router

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This commit is contained in:
Jörn-Michael Miehe 2022-08-31 10:21:24 +00:00
parent 811575536f
commit 12f0c5cb8f
4 changed files with 188 additions and 2 deletions
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3
api/ovkiosk/routers/__init__.py
View file

@ -7,10 +7,11 @@ This file: Main API router definition.
from fastapi import APIRouter
from ..config import SETTINGS
from . import text
from . import image, text
main_router = APIRouter(prefix=f"/{SETTINGS.api_v1_prefix}")
main_router.include_router(text.router)
main_router.include_router(image.router)
__all__ = [
"main_router",

112
api/ovkiosk/routers/image.py Normal file
View file

@ -0,0 +1,112 @@
import io
import logging
import re
from typing import Iterator
from fastapi import APIRouter, Depends, HTTPException, status
from fastapi.responses import StreamingResponse
from PIL import Image
from webdav3.exceptions import RemoteResourceNotFound
from .. import CLIENT
from ..dav_file import DavFile
_logger = logging.getLogger(__name__)
router = APIRouter(prefix="/image", tags=["image"])
@router.on_event("startup")
async def on_startup():
_logger.debug("image router started")
_re_image_file = re.compile(
r"\.(gif|jpe?g|tiff?|png|bmp)$",
flags=re.IGNORECASE,
)
async def get_image_file_names() -> Iterator[str]:
try:
file_names = CLIENT.list("img")
return (
name
for name in file_names
if _re_image_file.search(name)
)
except RemoteResourceNotFound:
pass
@router.get("/list", response_model=list[str])
async def list_images(
image_file_names: Iterator[str] = Depends(get_image_file_names),
) -> list[str]:
return list(image_file_names)
async def find_file_names(
prefix: str = "",
image_file_names: Iterator[str] = Depends(get_image_file_names),
) -> Iterator[str]:
return (
file_name
for file_name in image_file_names
if file_name.lower().startswith(prefix.lower())
)
@router.get("/find/{prefix}", response_model=list[str])
async def find_images(
file_names: Iterator[str] = Depends(find_file_names),
) -> list[str]:
return list(file_names)
@router.get(
"/get/{prefix}",
responses={
status.HTTP_200_OK: {
"description": "Operation successful",
},
status.HTTP_404_NOT_FOUND: {
"description": "image file not found",
"content": None,
},
status.HTTP_409_CONFLICT: {
"description": "ambiguous image file name",
"content": None,
},
},
)
async def get_image(
prefix: str,
file_names: Iterator[str] = Depends(find_file_names),
) -> StreamingResponse:
file_names = list(file_names)
if not (file_names := list(file_names)):
raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
elif len(file_names) > 1:
raise HTTPException(status_code=status.HTTP_409_CONFLICT)
file_name = file_names[0]
file = DavFile(CLIENT.resource(f"img/{file_name}"), refresh=False)
await file.download()
img = Image.open(io.BytesIO(file.bytes)).convert("RGB")
img_buffer = io.BytesIO()
img.save(img_buffer, format='JPEG', quality=85)
img_buffer.seek(0)
return StreamingResponse(
img_buffer,
media_type="image/jpeg",
headers={
"Content-Disposition": f"filename={prefix}.jpg"
},
)

74
api/poetry.lock generated
View file

@ -157,6 +157,18 @@ importlib-metadata = {version = ">=4.4", markers = "python_version < \"3.10\""}
[package.extras]
testing = ["coverage", "pyyaml"]
[[package]]
name = "pillow"
version = "9.2.0"
description = "Python Imaging Library (Fork)"
category = "main"
optional = false
python-versions = ">=3.7"
[package.extras]
docs = ["furo", "olefile", "sphinx (>=2.4)", "sphinx-copybutton", "sphinx-issues (>=3.0.1)", "sphinx-removed-in", "sphinxext-opengraph"]
tests = ["check-manifest", "coverage", "defusedxml", "markdown2", "olefile", "packaging", "pyroma", "pytest", "pytest-cov", "pytest-timeout"]
[[package]]
name = "pydantic"
version = "1.9.2"
@ -351,7 +363,7 @@ testing = ["func-timeout", "jaraco.itertools", "pytest (>=6)", "pytest-black (>=
[metadata]
lock-version = "1.1"
python-versions = "^3.9"
content-hash = "136b9208bffca16de395a3444ca9d172d7e6d7e40866eea987174fa7b69822c7"
content-hash = "b39654ea53ee894dd65fe2217ca58fea259c9fe8a9bbae26f6198c42304608e2"
[metadata.files]
anyio = [
@ -470,6 +482,66 @@ markdown = [
{file = "Markdown-3.4.1-py3-none-any.whl", hash = "sha256:08fb8465cffd03d10b9dd34a5c3fea908e20391a2a90b88d66362cb05beed186"},
{file = "Markdown-3.4.1.tar.gz", hash = "sha256:3b809086bb6efad416156e00a0da66fe47618a5d6918dd688f53f40c8e4cfeff"},
]
pillow = [
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1
api/pyproject.toml
View file

@ -12,6 +12,7 @@ uvicorn = "^0.18.3"
webdavclient3 = "3.14.5"
Markdown = "^3.4.1"
APScheduler = "^3.9.1"
Pillow = "^9.2.0"
[tool.poetry.dev-dependencies]
# pytest = "^5.2"