Python utils.collapse_rfc2231_value方法代码示例

# 需要导入模块: from future.backports.email import utils [as 别名]
# 或者: from future.backports.email.utils import collapse_rfc2231_value [as 别名]
def _unquotevalue(value):
    # This is different than utils.collapse_rfc2231_value() because it doesn't
    # try to convert the value to a unicode.  Message.get_param() and
    # Message.get_params() are both currently defined to return the tuple in
    # the face of RFC 2231 parameters.
    if isinstance(value, tuple):
        return value[0], value[1], utils.unquote(value[2])
    else:
        return utils.unquote(value) 

# 需要导入模块: from future.backports.email import utils [as 别名]
# 或者: from future.backports.email.utils import collapse_rfc2231_value [as 别名]
def get_param(self, param, failobj=None, header='content-type',
                  unquote=True):
        """Return the parameter value if found in the Content-Type header.

        Optional failobj is the object to return if there is no Content-Type
        header, or the Content-Type header has no such parameter.  Optional
        header is the header to search instead of Content-Type.

        Parameter keys are always compared case insensitively.  The return
        value can either be a string, or a 3-tuple if the parameter was RFC
        2231 encoded.  When it's a 3-tuple, the elements of the value are of
        the form (CHARSET, LANGUAGE, VALUE).  Note that both CHARSET and
        LANGUAGE can be None, in which case you should consider VALUE to be
        encoded in the us-ascii charset.  You can usually ignore LANGUAGE.
        The parameter value (either the returned string, or the VALUE item in
        the 3-tuple) is always unquoted, unless unquote is set to False.

        If your application doesn't care whether the parameter was RFC 2231
        encoded, it can turn the return value into a string as follows:

            param = msg.get_param('foo')
            param = email.utils.collapse_rfc2231_value(rawparam)

        """
        if header not in self:
            return failobj
        for k, v in self._get_params_preserve(failobj, header):
            if k.lower() == param.lower():
                if unquote:
                    return _unquotevalue(v)
                else:
                    return v
        return failobj 

# 需要导入模块: from future.backports.email import utils [as 别名]
# 或者: from future.backports.email.utils import collapse_rfc2231_value [as 别名]
def get_filename(self, failobj=None):
        """Return the filename associated with the payload if present.

        The filename is extracted from the Content-Disposition header's
        `filename' parameter, and it is unquoted.  If that header is missing
        the `filename' parameter, this method falls back to looking for the
        `name' parameter.
        """
        missing = object()
        filename = self.get_param('filename', missing, 'content-disposition')
        if filename is missing:
            filename = self.get_param('name', missing, 'content-type')
        if filename is missing:
            return failobj
        return utils.collapse_rfc2231_value(filename).strip() 

# 需要导入模块: from future.backports.email import utils [as 别名]
# 或者: from future.backports.email.utils import collapse_rfc2231_value [as 别名]
def get_boundary(self, failobj=None):
        """Return the boundary associated with the payload if present.

        The boundary is extracted from the Content-Type header's `boundary'
        parameter, and it is unquoted.
        """
        missing = object()
        boundary = self.get_param('boundary', missing)
        if boundary is missing:
            return failobj
        # RFC 2046 says that boundaries may begin but not end in w/s
        return utils.collapse_rfc2231_value(boundary).rstrip()