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layout	title
page	WebFinger Handler

The WebFinger (webfinger.js) Handler provides basic WebFinger (RFC7033) support, enabling servers such as those participating in the Mastodon Fediverse to discover basic information about a user.

Supported Features

profile-page
ActivityStream URI via rel of self and of type application/activity+json
Subscription URI template via rel of http://ostatus.org/schema/1.0/subscribe

Configuration

By default, the WebFinger handler is not enabled. To enable, at a minimum set contentServers.web.handlers.webFinger.enabled to true in config.hjson:

contentServers: {
    web: {
        handlers: {
            webFinger: {
                enabled: true // wow, much nest!
            }
        }
    }
}

Configuration Keys

Key	Description
`enabled`	Boolean. Set to `true` to enable WebFinger services
`profileTemplate`	String. Provide a fully qualified, or relative to static root path to a template file for fetching profile information. See Profile Template for more information.

Profile Template

A profile template file can offer flexibility as to what information, the format, and MIME type served by the profile-page WebFinger query. Set the profileTemplate key in your webFinger configuration block to a path to serve as the template. The MIME type will be determined by the file's extension:

contentServers: {
    web: {
        handlers: {
            webFinger: {
                enabled: true
                profileTemplate: './wf/fancy-profile.html'
            }
        }
    }
}

ℹ️ A sample template can be found at www/wf/profile.template.html

Example Session

# WebFinger query
> http get 'https://xibalba.l33t.codes/.well-known/webfinger?resource=acct:NuSkooler@xibalba.l33t.codes'
HTTP/1.1 200 OK
Connection: keep-alive
Content-Length: 558
Content-Type: application/jrd+json
Date: Mon, 02 Jan 2023 03:36:20 GMT
Keep-Alive: timeout=5

{
    "aliases": [
        "https://xibalba.l33t.codes/_enig/wf/@NuSkooler",
        "https://xibalba.l33t.codes/_enig/ap/users/NuSkooler"
    ],
    "links": [
        {
            "href": "https://xibalba.l33t.codes/_enig/wf/@NuSkooler",
            "rel": "https://webfinger.net/rel/profile-page",
            "type": "text/plain"
        },
        {
            "href": "https://xibalba.l33t.codes/_enig/ap/users/NuSkooler",
            "rel": "self",
            "type": "application/activity+json"
        },
        {
            "rel": "http://ostatus.org/schema/1.0/subscribe",
            "template": "http://xibalba.l33t.codes/_enig/ap/authorize_interaction?uri={uri}"
        }
    ],
    "subject": "acct:NuSkooler@xibalba.l33t.codes"
}

# Now we can fetch the profile
> http get 'https://xibalba.l33t.codes/_enig/wf/@NuSkooler'
HTTP/1.1 200 OK
Connection: keep-alive
Content-Length: 116
Content-Type: text/plain
Date: Mon, 02 Jan 2023 03:41:19 GMT
Keep-Alive: timeout=5

User information for: NuSkooler

Real Name: Bryan Ashby
Login Count: 432
Affiliations: ENiG
Achievement Points: 405

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