38 lines
723 B
Python
38 lines
723 B
Python
"""
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Image encoding helpers for the verification app.
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"""
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from __future__ import absolute_import
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import base64
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import logging
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log = logging.getLogger(__name__)
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class InvalidImageData(Exception):
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"""
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The provided image data could not be decoded.
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"""
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pass
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def decode_image_data(data):
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"""
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Decode base64-encoded image data.
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Arguments:
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data (str): The raw image data, base64-encoded.
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Returns:
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str
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Raises:
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InvalidImageData: The image data could not be decoded.
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"""
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try:
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return base64.b64decode(data.split(",")[1])
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except (IndexError, UnicodeEncodeError):
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log.exception("Could not decode image data")
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raise InvalidImageData
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