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