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77 lines
2.2 KiB
Python
77 lines
2.2 KiB
Python
import os
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import uuid
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from enum import Enum
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from typing import Dict
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import requests
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class FileType(Enum):
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IMAGE = "image"
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AUDIO = "audio"
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VIDEO = "video"
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DATAFRAME = "dataframe"
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UNKNOWN = "unknown"
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@staticmethod
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def from_filename(url: str) -> "FileType":
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filename = url.split("?")[0]
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if filename.endswith(".png") or filename.endswith(".jpg"):
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return FileType.IMAGE
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elif filename.endswith(".mp3") or filename.endswith(".wav"):
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return FileType.AUDIO
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elif filename.endswith(".mp4") or filename.endswith(".avi"):
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return FileType.VIDEO
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elif filename.endswith(".csv"):
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return FileType.DATAFRAME
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else:
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return FileType.UNKNOWN
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@staticmethod
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def from_url(url: str) -> "FileType":
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return FileType.from_filename(url.split("?")[0])
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def to_extension(self) -> str:
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if self == FileType.IMAGE:
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return ".png"
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elif self == FileType.AUDIO:
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return ".mp3"
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elif self == FileType.VIDEO:
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return ".mp4"
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elif self == FileType.DATAFRAME:
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return ".csv"
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else:
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return ".unknown"
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class BaseHandler:
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def handle(self, filename: str) -> str:
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raise NotImplementedError
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class FileHandler:
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def __init__(self, handlers: Dict[FileType, BaseHandler]):
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self.handlers = handlers
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def register(self, filetype: FileType, handler: BaseHandler) -> "FileHandler":
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self.handlers[filetype] = handler
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return self
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def download(self, url: str) -> str:
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filetype = FileType.from_url(url)
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data = requests.get(url).content
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local_filename = os.path.join(
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filetype.value, str(uuid.uuid4())[0:8] + filetype.to_extension()
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)
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with open(local_filename, "wb") as f:
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size = f.write(data)
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print(f"Inputs: {url} ({size//1000}MB) => {local_filename}")
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return local_filename
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def handle(self, url: str) -> str:
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try:
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return self.handlers[FileType.from_url(url)].handle(self.download(url))
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except Exception as e:
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return "Error: " + str(e)
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