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import axios, { AxiosRequestConfig } from 'axios'
import { NodeinfoError } from './megalodon'
const NODEINFO_10 = 'http://nodeinfo.diaspora.software/ns/schema/1.0'
const NODEINFO_20 = 'http://nodeinfo.diaspora.software/ns/schema/2.0'
const NODEINFO_21 = 'http://nodeinfo.diaspora.software/ns/schema/2.1'
type Links = {
links: Array<Link>
}
type Link = {
href: string
rel: string
}
type Nodeinfo10 = {
software: Software
metadata: Metadata
}
type Nodeinfo20 = {
software: Software
metadata: Metadata
}
type Nodeinfo21 = {
software: Software
metadata: Metadata
}
type Software = {
name: string
}
type Metadata = {
upstream?: {
name: string
}
}
/**
* Detect SNS type.
* Now support Mastodon, Pleroma and Pixelfed. Throws an error when no known platform can be detected.
*
* @param url Base URL of SNS.
* @return SNS name.
*/
export const detector = async (
url: string,
): Promise<'mastodon' | 'pleroma' | 'misskey' | 'friendica'> => {
let options: AxiosRequestConfig = {
timeout: 20000
}
const res = await axios.get<Links>(url + '/.well-known/nodeinfo', options)
const link = res.data.links.find(l => l.rel === NODEINFO_20 || l.rel === NODEINFO_21)
if (!link) throw new NodeinfoError('Could not find nodeinfo')
switch (link.rel) {
case NODEINFO_10: {
const res = await axios.get<Nodeinfo10>(link.href, options)
switch (res.data.software.name) {
case 'pleroma':
return 'pleroma'
case 'akkoma':
return 'pleroma'
case 'mastodon':
return 'mastodon'
case "wildebeest":
return "mastodon"
case 'misskey':
return 'misskey'
case 'friendica':
return 'friendica'
default:
if (res.data.metadata.upstream?.name && res.data.metadata.upstream.name === 'mastodon') {
return 'mastodon'
}
throw new NodeinfoError('Unknown SNS')
}
}
case NODEINFO_20: {
const res = await axios.get<Nodeinfo20>(link.href, options)
switch (res.data.software.name) {
case 'pleroma':
return 'pleroma'
case 'akkoma':
return 'pleroma'
case 'mastodon':
return 'mastodon'
case "wildebeest":
return "mastodon"
case 'misskey':
return 'misskey'
case 'friendica':
return 'friendica'
default:
if (res.data.metadata.upstream?.name && res.data.metadata.upstream.name === 'mastodon') {
return 'mastodon'
}
throw new NodeinfoError('Unknown SNS')
}
}
case NODEINFO_21: {
const res = await axios.get<Nodeinfo21>(link.href, options)
switch (res.data.software.name) {
case 'pleroma':
return 'pleroma'
case 'akkoma':
return 'pleroma'
case 'mastodon':
return 'mastodon'
case "wildebeest":
return "mastodon"
case 'misskey':
return 'misskey'
case 'friendica':
return 'friendica'
default:
if (res.data.metadata.upstream?.name && res.data.metadata.upstream.name === 'mastodon') {
return 'mastodon'
}
throw new NodeinfoError('Unknown SNS')
}
}
default:
throw new NodeinfoError('Could not find nodeinfo')
}
}
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