e462e8b3bc
In the process of fixing #93, I realized that we were spawning new threads to fetch images for each update (we only need one).
35 lines
922 B
Python
35 lines
922 B
Python
""" A small script to convert the images into base64 data """
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import struct
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from base64 import b64encode
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def get_image_size(fhandle):
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"""https://stackoverflow.com/a/20380514/6164984"""
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head = fhandle.read(24)
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if len(head) != 24:
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return
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# always going to be png
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check = struct.unpack(">i", head[4:8])[0]
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if check != 0x0D0A1A0A:
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raise ValueError("invalid check (?)")
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width, height = struct.unpack(">ii", head[16:24])
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return width, height
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def make_cache(image_name):
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with open("{}.png".format(image_name), "rb") as png, open(
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"{}.base64".format(image_name), "wb"
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) as base64:
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width, height = get_image_size(png)
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png.seek(0)
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base64.write(bytes("{}\n{}\n".format(width, height), encoding="utf-8"))
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base64.write(b'data:image/png;base64,')
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base64.write(b64encode(png.read()))
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make_cache("404")
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make_cache("loading")
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