Content Disposition Values and Parameters

Last Updated

2021-09-14

Note

In [RFC2183] there is a discussion of the "Content-Disposition" header
field and the description of the initial values allowed in this
header.  Additional values may be registered with the IANA
following the procedures in section 9 of [RFC2183].

Available Formats

XML

HTML

Plain text

Registries included below

Content Disposition Values
Content Disposition Parameters
Voice Parameter Values
Handling Parameter Values

Content Disposition Values

Registration Procedure(s)

Standards Track or IESG-Approved Experimental RFC

Reference

[RFC2183]

Available Formats

CSV

Value	Description	Allowed Values	Reference
inline	displayed automatically	(none)	[RFC2183]
attachment	user controlled display	filename, creation-date, modification-date, read-date, size, handling	[RFC2183]
form-data	process as form response	name, filename	[RFC7578]
signal	tunneled content to be processed silently	handling	[RFC3204]
alert	the body is a custom ring tone to alert the user	handling	[RFC3261]
icon	the body is displayed as an icon to the user	handling	[RFC3261]
render	the body should be displayed to the user	handling	[RFC3261]
recipient-list-history	the body contains a list of URIs that indicates the recipients of the request	handling	[RFC5364]
session	the body describes a communications session, for example, an RFC2327 SDP body	handling	[RFC3261]
aib	Authenticated Identity Body	handling	[RFC3893]
early-session	the body describes an early communications session, for example, and [RFC2327] SDP body	(none)	[RFC3959]
recipient-list	The body includes a list of URIs to which URI-list services are to be applied.	(none)	[RFC5363]
notification	the payload of the message carrying this Content-Disposition header field value is an Instant Message Disposition Notification as requested in the corresponding Instant Message.	(none)	[RFC5438]
by-reference	The body needs to be handled according to a reference to the body that is located in the same SIP message as the body.	handling	[RFC5621]
info-package	The body contains information associated with an Info Package	(none)	[RFC6086]
recording-session	The body describes either metadata about the RS or the reason for the metadata snapshot request as determined by the MIME value indicated in the Content-Type.	(none)	[RFC7866]

Content Disposition Parameters

Registration Procedure(s)

First Come First Served

Reference

[RFC2183]

Available Formats

CSV

Name	Description	Reference
filename	name to be used when creating file	[RFC2183]
creation-date	date when content was created	[RFC2183]
modification-date	date when content was last modified	[RFC2183]
read-date	date when content was last read	[RFC2183]
size	approximate size of content in octets	[RFC2183]
name	original field name in form	[RFC7578]
voice	type or use of audio content	[RFC2421]
handling	whether or not processing is required	[RFC3204]
preview-type	Internet media type (and parameters) of the preview output desired from a processor by the author of the MIME content	[RFC7763]
reaction	Permit a recipient to respond by signaling basic reactions to an author's posting, such as with a 'thumbs up' or 'smiley' graphic	[RFC9078]

Voice Parameter Values

Registration Procedure(s)

Not Defined

Reference

[RFC2421]

Available Formats

CSV

Value	Reference
Voice-Message	[RFC2421]
Voice-Message-Notification	[RFC2421]
Originator-Spoken-Name	[RFC2421]
Recipient-Spoken-Name	[RFC2421]
Spoken-Subject	[RFC2421]

Handling Parameter Values

Registration Procedure(s)

Not Defined

Reference

[RFC3204]

Available Formats

CSV

Value	Description	Reference
required	body must be understood	[RFC3204]
optional	body may be silently discarded	[RFC3204]