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Determine filetype from URL through HEAD request #270

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merged 1 commit into from
Oct 17, 2023
Merged

Determine filetype from URL through HEAD request #270

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22 changes: 18 additions & 4 deletions renumics/spotlight/data_store.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,8 +5,10 @@
from typing import Any, List, Optional, Set, Union, cast
import numpy as np
import filetype
import requests
import trimesh
import PIL.Image
import validators

from renumics.spotlight.cache import external_data_cache
from renumics.spotlight.data_source import DataSource
Expand Down Expand Up @@ -231,10 +233,22 @@ def _guess_value_dtype(value: Any) -> Optional[DType]:
if isinstance(value, np.ndarray):
return ArrayDType(value.shape)

if isinstance(value, bytes) or (is_pathtype(value) and os.path.isfile(value)):
kind = filetype.guess(value)
if kind is not None:
mime_group = kind.mime.split("/")[0]
if isinstance(value, bytes) or is_pathtype(value):
mimetype: Optional[str] = None
if isinstance(value, bytes) or (is_pathtype(value) and os.path.isfile(value)):
kind = filetype.guess(value)
if kind is not None:
mimetype = kind.mime
elif isinstance(value, str) and validators.url(value):
try:
response = requests.head(value, timeout=1)
except requests.ReadTimeout:
...
else:
if response.ok:
mimetype = response.headers.get("Content-Type")
if mimetype is not None:
mime_group = mimetype.split("/")[0]
if mime_group == "image":
return image_dtype
if mime_group == "audio":
Expand Down