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