humungus - honk

i am gravely disappointed

i will give you safe passage in the wasteland

overview - docs

ACTIVITYPUB(7) Miscellaneous Information Manual ACTIVITYPUB(7)

activitypubnotes about the honk implementation

The honk(1) utility processes status updates and other microblog activities using the ActivityPub protocol to exchange messages with other servers. The specification is subject to interpretation, and not all implementations behave in the same way. This document attempts to clarify honk's behavior. It is not intended to be a complete description of ActivityPub, but may be useful as a guide to other implementors looking to interoperate.

The following object or document types are supported.

Note
Fully supported. The default object type for honk.
Article
Fully supported.
Page
Supported.
Question
Read only support. Appears similar to a Note.
Event
Supported. Appears similar to a Note. Can be both created and received, but Invite activities are ignored.
Video
Limited support.
Audio
Limited Support.

Honk primarily supports HTML content, not markdown or other formats, with a wide range of permitted HTML tags in object content fields. The following tags are supported.

a, img, span,
div, h1, h2, h3, h4, h5, h6, hr,
table, thead, tbody, tfoot, th, tr, td, colgroup, col,
p, br, pre, code, blockquote, q,
caption, kbd, time, wbr, aside,
ruby, rtc, rb, rt, details, summary,
samp, mark, ins, dfn, cite, abbr, address,
strong, em, b, i, s, u, sub, sup, del, tt, small,
ol, ul, li, dl, dt, dd

The following tag attributes are permitted.

href, src, alt, colspan, rowspan

The following class names are used for syntax highlighting code blocks.

kw, bi, st, nm, tp, op, cm, al, dl

The following activities are supported.

Create
Fully supported.
Announce
Supported with share semantics.
Read
Supported. Primarily used to acknowledge replies and complete threads. Can be interpreted to mean reply is approved, if not endorsed.
Add
Works with collections.
Follow
Supported. Can follow both actors and collections. Accept and Undo require that the original request be quoted, not referred to by URI.
Update
Supported. Honk sends and receives Update activities.
Delete
Does what it can.
Like
Don't be ridiculous.
EmojiReact
Be ridiculous.

The following additional object types are supported, typically as tag or attachment.

Mention
Pretty @ machine.
Emoji
Inline text :emoji: with image replacement.
Place
Included as a location. Supports name, url, latitude, and longitude.
Document
Plain text and images in jpeg, gif, png, and webp formats are supported. Other formats are linked to origin.

The replies array will be populated with a list of acknowledged replies.

Honk also supports a Ping activity and will respond with a Pong activity. This is useful for debugging networking connectivity issues without visible side effects. See ping.txt for details.

Honk uses http signatures.

Honk implements the webfinger end point and will use it for @mention resolution. It is not required for federation.

Not really.

intro(1), honk(1)

ActivityPub

Activity Vocabulary

The ActivityPub standard is subject to interpretation, and not all implementations are as enlightened as honk.

December 4, 2020 OpenBSD 6.7