1632290 - Expose XPIDL JS interface of MIMEType

Status: NEW

(Core :: DOM: Core & HTML, enhancement)

Description

[Marcos Caceres [:marcosc]]

It would be nice to have a JS interface for MIMEType.h/cpp. The current MIMEType parser exposed to chrome scripts doesn't validate mime types. What is important would be to have a way of accessing the MIME parser.

We need roughly something like this (WebIDL):

[ChromeOnly]
interface MIMEType {
  constructor(DOMString input);
  readonly attribute DOMString essence;
  readonly attribute DOMString type;
  readonly attribute DOMString subtype;
  readonly attribute MIMEParams params;
}
[ChromeOnly]
interface MIMEParams {
  readonly maplike<DOMString, DOMString>;
}

Comment 1

[Marcos Caceres [:marcosc]]

Hi Thomas, any chance we could get this on your backlog?

Comment 2

[Thomas Wisniewski [:twisniewski]]

Yes, though probably not until next week at the soonest. I take it this effectively inherits the P2 priority of bug 1626158?

Comment 3

[Marcos Caceres [:marcosc]]

Yeah, basically. Then after that I can hook up the abandoned patch from bug 1626158.

Comment 4

[Thomas Wisniewski [:twisniewski]]

:jjaschke, are we still interested in this? If so, I should be able to finally put together a patch for this soon. But it's been a few years, so I thought I'd ask in case bug 1626158 isn't really P2 anymore.

Comment 5

[Henri Sivonen (:hsivonen) (not reading bugmail until 2025-02-20)]

Sorry, I don't know enough about the context around bug 1626158 to say if it makes sense to have a JS interface for the MIME type.