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# Copyright (C) 2001-2006 Python Software Foundation
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# Author: Barry Warsaw
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# Contact: email-sig@python.org
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"""Class representing image/* type MIME documents."""
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__all__ = ['MIMEImage']
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import imghdr
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from email import encoders
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from email.mime.nonmultipart import MIMENonMultipart
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class MIMEImage(MIMENonMultipart):
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"""Class for generating image/* type MIME documents."""
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def __init__(self, _imagedata, _subtype=None,
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_encoder=encoders.encode_base64, *, policy=None, **_params):
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"""Create an image/* type MIME document.
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_imagedata is a string containing the raw image data. If this data
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can be decoded by the standard Python `imghdr' module, then the
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subtype will be automatically included in the Content-Type header.
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Otherwise, you can specify the specific image subtype via the _subtype
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parameter.
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_encoder is a function which will perform the actual encoding for
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transport of the image data. It takes one argument, which is this
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Image instance. It should use get_payload() and set_payload() to
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change the payload to the encoded form. It should also add any
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Content-Transfer-Encoding or other headers to the message as
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necessary. The default encoding is Base64.
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Any additional keyword arguments are passed to the base class
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constructor, which turns them into parameters on the Content-Type
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header.
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"""
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if _subtype is None:
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_subtype = imghdr.what(None, _imagedata)
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if _subtype is None:
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raise TypeError('Could not guess image MIME subtype')
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MIMENonMultipart.__init__(self, 'image', _subtype, policy=policy,
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**_params)
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self.set_payload(_imagedata)
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_encoder(self)
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