Jon Staab
115 lines
2.8 KiB
TypeScript
115 lines
2.8 KiB
TypeScript
import {writable, derived} from 'svelte/store'
|
|
import {type SubscribeRequestWithHandlers} from "@welshman/net"
|
|
import {ctx, tryCatch, fetchJson, uniq, batcher, postJson, last} from '@welshman/lib'
|
|
import {collection} from './collection'
|
|
import {deriveProfile} from './profiles'
|
|
|
|
export type Handle = {
|
|
nip05: string
|
|
pubkey?: string
|
|
nip46?: string[]
|
|
relays?: string[]
|
|
}
|
|
|
|
export const NIP05_REGEX = /^(?:([\w.+-]+)@)?([\w_-]+(\.[\w_-]+)+)$/
|
|
|
|
export async function queryProfile(nip05: string) {
|
|
const match = nip05.match(NIP05_REGEX)
|
|
|
|
if (!match) return undefined
|
|
|
|
const [_, name = '_', domain] = match
|
|
|
|
try {
|
|
const {names, relays = {}, nip46 = {}} = await fetchJson(`https://${domain}/.well-known/nostr.json?name=${name}`)
|
|
|
|
const pubkey = names[name]
|
|
|
|
if (!pubkey) {
|
|
return undefined
|
|
}
|
|
|
|
return {
|
|
nip05,
|
|
pubkey,
|
|
nip46: nip46[pubkey],
|
|
relays: relays[pubkey],
|
|
}
|
|
} catch (_e) {
|
|
return undefined
|
|
}
|
|
}
|
|
|
|
export const handles = writable<Handle[]>([])
|
|
|
|
export const fetchHandles = async (nip05s: string[]) => {
|
|
const base = ctx.app.dufflepudUrl!
|
|
const handlesByNip05 = new Map<string, Handle>()
|
|
|
|
// Use dufflepud if we it's set up to protect user privacy, otherwise fetch directly
|
|
if (base) {
|
|
const res: any = await tryCatch(async () => await postJson(`${base}/handle/info`, {handles: nip05s}))
|
|
|
|
for (const {handle: nip05, info} of res?.data || []) {
|
|
handlesByNip05.set(nip05, info)
|
|
}
|
|
} else {
|
|
const results = await Promise.all(
|
|
nip05s.map(async nip05 => ({nip05, info: await tryCatch(async () => await queryProfile(nip05))}))
|
|
)
|
|
|
|
for (const {nip05, info} of results) {
|
|
if (info) {
|
|
handlesByNip05.set(nip05, info)
|
|
}
|
|
}
|
|
}
|
|
|
|
return handlesByNip05
|
|
}
|
|
|
|
export const {
|
|
indexStore: handlesByNip05,
|
|
deriveItem: deriveHandle,
|
|
loadItem: loadHandle,
|
|
} = collection({
|
|
name: "handles",
|
|
store: handles,
|
|
getKey: (handle: Handle) => handle.nip05,
|
|
load: batcher(800, async (nip05s: string[]) => {
|
|
const fresh = await fetchHandles(uniq(nip05s))
|
|
const stale = handlesByNip05.get()
|
|
|
|
for (const nip05 of nip05s) {
|
|
const newHandle = fresh.get(nip05)
|
|
|
|
if (newHandle) {
|
|
stale.set(nip05, {...newHandle, nip05})
|
|
}
|
|
}
|
|
|
|
handles.set(Array.from(stale.values()))
|
|
|
|
return nip05s
|
|
}),
|
|
})
|
|
|
|
export const deriveHandleForPubkey = (pubkey: string, request: Partial<SubscribeRequestWithHandlers> = {}) =>
|
|
derived(
|
|
[handlesByNip05, deriveProfile(pubkey, request)],
|
|
([$handlesByNip05, $profile]) => {
|
|
if (!$profile?.nip05) {
|
|
return undefined
|
|
}
|
|
|
|
loadHandle($profile.nip05)
|
|
|
|
return $handlesByNip05.get($profile.nip05)
|
|
}
|
|
)
|
|
|
|
export const displayNip05 = (nip05: string) =>
|
|
(nip05?.startsWith("_@") ? last(nip05.split("@")) : nip05)
|
|
|
|
export const displayHandle = (handle: Handle) => displayNip05(handle.nip05)
|