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114 lines
3.0 KiB
Python
114 lines
3.0 KiB
Python
import hashlib
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import shutil
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import uuid
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import flask
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from fresnel_lens import constants
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from fresnel_lens import database
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from fresnel_lens import exceptions
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from fresnel_lens.resources._shared import FresnelResource
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class ImageUpload(FresnelResource):
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routes = ("/image/",)
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def post(self):
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if "image" not in flask.request.files:
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raise
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uploaded = flask.request.files["image"]
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if not uploaded.filename:
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raise
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format = uploaded.filename.rpartition(".")[-1].lower()
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if format not in flask.current_app.appconfig.upload.formats:
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raise
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image = database.ImageRecord(format=format, width=0, height=0, owner="foobar")
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imagedir = flask.current_app.appconfig.storage_path / str(image.uuid)
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imagedir.mkdir()
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uploaded.save(imagedir / f"base.{format}")
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with (imagedir / f"base.{format}").open() as infile:
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image.sha256 = hashlib.sha256(infile.read()).hexdigest()
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with database.interface.atomic():
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image.save()
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return None, 201
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class Image(FresnelResource):
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routes = ("/image/<string:image_id>.jpeg",)
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def get(self, image_id: str):
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image = database.ImageRecord.get(
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database.ImageRecord.uuid == uuid.UUID(image_id)
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)
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if image.deleted:
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raise exceptions.ImageResourceDeletedError(
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f"Image with ID '{image_id}' was deleted"
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)
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filepath = (
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flask.current_app.appconfig.storage_path
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/ str(image.uuid)
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/ f"base.{image.format}"
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)
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if not filepath.exists():
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with database.interface.atomic():
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image.deleted = True
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image.save()
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raise exceptions.ImageFileRemovedError(
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f"Image file with ID '{image_id}' removed from the server"
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)
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flask.send_file(
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filepath,
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mimetype=f"image/{'jpeg' if image.format == 'jpg' else image.format}",
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# images are indexed by UUID with no ability to update, y'all should cache
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# this thing 'till the sun explodes
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cache_timeout=(60 * 60 * 24 * 365),
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)
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return (
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None,
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200,
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{constants.HTTP_HEADER_RESPONSE_DIGEST: f"sha-256={image.sha256}"},
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)
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def delete(self, image_id: str, format: str):
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image = database.ImageRecord.get(
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database.ImageRecord.uuid
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== uuid.UUID(image_id) & database.ImageRecord.format
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== format
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)
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if image.deleted:
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raise exceptions.ImageResourceDeletedError(
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f"Image with ID '{image_id}' was deleted"
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)
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filepath = flask.current_app.appconfig.storage_path / str(image.uuid)
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with database.interface.atomic():
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image.deleted = True
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image.save()
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if filepath.exists():
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shutil.rmtree(filepath)
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return None, 204
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