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fix: the /predict endpoint accepts file uploads with... in app.py #13638

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fix: the /predict endpoint accepts file uploads with... in app.py #13638

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15 changes: 15 additions & 0 deletions official/projects/waste_identification_ml/docker_solution/prediction_api/app.py
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,8 @@


HEIGHT, WIDTH = 512, 1024
MAX_FILE_SIZE = 10 * 1024 * 1024 # 10 MB upload limit
MAX_IMAGE_DIMENSION = 10000 # max pixels per side

app = fastapi.FastAPI()
model_manager = app_utils.ModelManager()
Expand All @@ -57,14 +59,27 @@ async def predict(
A JSON encoded list of detections.
"""
image_data = await image.read()
if len(image_data) > MAX_FILE_SIZE:
return fastapi.responses.JSONResponse(
content={'message': 'Uploaded file exceeds the 10 MB size limit.'},
status_code=413,
) # Request Entity Too Large
try:
p_image = PIL.Image.open(io.BytesIO(image_data))
p_image.verify()
p_image = PIL.Image.open(io.BytesIO(image_data))
except (OSError, PIL.UnidentifiedImageError):
return fastapi.responses.JSONResponse(
content={'message': 'Could not open image_data as an image.'},
status_code=400,
) # Bad Request

if p_image.width > MAX_IMAGE_DIMENSION or p_image.height > MAX_IMAGE_DIMENSION:
return fastapi.responses.JSONResponse(
content={'message': 'Image dimensions exceed the allowed limit.'},
status_code=400,
) # Bad Request

try:
tf_image = tf.image.resize(
p_image, (HEIGHT, WIDTH), method=tf.image.ResizeMethod.AREA
Expand Down