80 lines
2.8 KiB
Python
80 lines
2.8 KiB
Python
from owrx.controllers import BodySizeError
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from owrx.controllers.assets import AssetsController
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from owrx.controllers.admin import AuthorizationMixin
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from owrx.config.core import CoreConfig
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from owrx.form.input.gfx import AvatarInput, TopPhotoInput
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import uuid
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import json
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class ImageUploadController(AuthorizationMixin, AssetsController):
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# max upload filesizes
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max_sizes = {
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# not the best idea to instantiate inputs, but i didn't want to duplicate the sizes here
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"receiver_avatar": AvatarInput("id", "label").getMaxSize(),
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"receiver_top_photo": TopPhotoInput("id", "label").getMaxSize(),
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}
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def __init__(self, handler, request, options):
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super().__init__(handler, request, options)
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self.file = request.query["file"][0] if "file" in request.query else None
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def getFilePath(self, file=None):
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if self.file is None:
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raise FileNotFoundError("missing filename")
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return "{tmp}/{file}".format(
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tmp=CoreConfig().get_temporary_directory(),
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file=self.file
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)
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def indexAction(self):
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self.serve_file(None)
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def _is_png(self, contents):
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return contents[0:8] == bytes([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A])
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def _is_jpg(self, contents):
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return contents[0:3] == bytes([0xFF, 0xD8, 0xFF])
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def _is_webp(self, contents):
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return contents[0:4] == bytes([0x52, 0x49, 0x46, 0x46]) and contents[8:12] == bytes([0x57, 0x45, 0x42, 0x50])
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def processImage(self):
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if "id" not in self.request.query:
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self.send_json_response({"error": "missing id"}, code=400)
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return
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file_id = self.request.query["id"][0]
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if file_id not in ImageUploadController.max_sizes:
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self.send_json_response({"error": "unexpected image id"}, code=400)
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return
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try:
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contents = self.get_body(ImageUploadController.max_sizes[file_id])
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except BodySizeError:
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self.send_json_response({"error": "file size too large"}, code=400)
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return
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filetype = None
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if self._is_png(contents):
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filetype = "png"
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elif self._is_jpg(contents):
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filetype = "jpg"
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elif self._is_webp(contents):
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filetype = "webp"
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if filetype is None:
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self.send_json_response({"error": "unsupported file type"}, code=400)
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return
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self.file = "{id}-{uuid}.{ext}".format(
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id=file_id,
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uuid=uuid.uuid4().hex,
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ext=filetype,
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)
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with open(self.getFilePath(), "wb") as f:
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f.write(contents)
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self.send_json_response({"file": self.file}, code=200)
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def send_json_response(self, obj, code):
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self.send_response(json.dumps(obj), code=code, content_type="application/json")
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