readonly nsIChannel baseChannel

Readonly attribute to access the underlying channel

ACString contentDisposition

Access to the Content-Disposition header field of this part of a multipart message. This allows getting the preferred handling method, preferred filename, etc. See RFC 2183.

readonly PRBool isLastPart

Set to true when onStopRequest is received from the base channel. The listener can check this from its onStopRequest to determine whether more data can be expected.

readonly PRUint32 partID

Attribute guaranteed to be different for different parts of the same multipart document.