Opened 10 years ago

Last modified 10 years ago

#24441 closed Bug

core.files.images.get_image_dimensions broken — at Initial Version

Reported by: artscoop Owned by: nobody
Component: Core (Other) Version: 1.7
Severity: Normal Keywords: imagefield, imagefilefield
Cc: andrei kulakov Triage Stage: Accepted
Has patch: yes Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: no UI/UX: no

Description

Each time you access a model instance which contains an ImageField, core.files.images.get_image_dimensions is called. I have always found it overkill but whatever.
The bug is that the function chokes because get_image_dimensions returns None on a valid image (which is a 1x1 BMP32ARGB, not recognized by Pillow).
I end with a

>> return self._get_image_dimensions()[0]
TypeError: 'NoneType' object has no attribute '__getitem__'

When hitting an unrecognized image file, the function should still return a tuple like (0, 0) or (-1, -1). I changed the function code to this:

    from PIL import Image
    try:
        image = Image.open(file_or_path)
        return image.size  # raster data is not loaded here
    except IOError:
        return [-1, -1]

what do you think ? It appears as a bug to me.

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