Files
flotilla/src/app/core/state.ts

1052 lines
26 KiB
TypeScript

import twColors from "tailwindcss/colors"
import {Capacitor} from "@capacitor/core"
import {get, derived, writable} from "svelte/store"
import * as nip19 from "nostr-tools/nip19"
import {
on,
gt,
max,
spec,
call,
first,
assoc,
remove,
uniqBy,
sortBy,
sort,
prop,
uniq,
pushToMapKey,
shuffle,
parseJson,
memoize,
addToMapKey,
identity,
groupBy,
always,
tryCatch,
fromPairs,
} from "@welshman/lib"
import type {Socket} from "@welshman/net"
import {
Pool,
load,
SocketStatus,
AuthStateEvent,
AuthStatus,
SocketEvent,
netContext,
} from "@welshman/net"
import {collection, custom, throttled, deriveEvents, deriveEventsMapped} from "@welshman/store"
import {isKindFeed, findFeed} from "@welshman/feeds"
import {
ALERT_ANDROID,
ALERT_EMAIL,
ALERT_IOS,
ALERT_STATUS,
ALERT_WEB,
APP_DATA,
CLIENT_AUTH,
COMMENT,
DELETE,
DIRECT_MESSAGE_FILE,
DIRECT_MESSAGE,
EVENT_TIME,
MESSAGE,
REACTION,
RELAY_ADD_MEMBER,
RELAY_JOIN,
RELAY_LEAVE,
RELAY_MEMBERS,
RELAY_REMOVE_MEMBER,
REPORT,
ROOM_ADD_MEMBER,
ROOM_CREATE_PERMISSION,
ROOM_JOIN,
ROOM_LEAVE,
ROOM_MEMBERS,
ROOM_ADMINS,
ROOM_META,
ROOM_DELETE,
ROOM_REMOVE_MEMBER,
ROOMS,
THREAD,
WRAP,
ZAP_GOAL,
ZAP_REQUEST,
ZAP_RESPONSE,
asDecryptedEvent,
displayProfile,
getGroupTags,
getIdFilters,
getListTags,
getPubkeyTagValues,
getRelaysFromList,
getRelayTagValues,
getTagValue,
getTagValues,
isRelayUrl,
makeEvent,
normalizeRelayUrl,
readList,
RelayMode,
verifyEvent,
readRoomMeta,
makeRoomMeta,
ManagementMethod,
} from "@welshman/util"
import type {
TrustedEvent,
RelayProfile,
PublishedList,
PublishedRoomMeta,
List,
Filter,
} from "@welshman/util"
import {decrypt} from "@welshman/signer"
import {routerContext, Router} from "@welshman/router"
import {
pubkey,
repository,
profilesByPubkey,
tracker,
makeTrackerStore,
makeRepositoryStore,
createSearch,
userFollows,
ensurePlaintext,
thunks,
sign,
signer,
makeOutboxLoader,
appContext,
getThunkError,
publishThunk,
userRelaySelections,
userInboxRelaySelections,
deriveRelay,
makeUserData,
makeUserLoader,
manageRelay,
} from "@welshman/app"
import type {Thunk} from "@welshman/app"
export const fromCsv = (s: string) => (s || "").split(",").filter(identity)
export const ROOM = "h"
export const PROTECTED = ["-"]
export const ENABLE_ZAPS = Capacitor.getPlatform() != "ios"
export const NOTIFIER_PUBKEY = import.meta.env.VITE_NOTIFIER_PUBKEY
export const NOTIFIER_RELAY = import.meta.env.VITE_NOTIFIER_RELAY
export const VAPID_PUBLIC_KEY = import.meta.env.VITE_VAPID_PUBLIC_KEY
export const INDEXER_RELAYS = fromCsv(import.meta.env.VITE_INDEXER_RELAYS)
export const SIGNER_RELAYS = fromCsv(import.meta.env.VITE_SIGNER_RELAYS)
export const PLATFORM_URL = import.meta.env.VITE_PLATFORM_URL
export const PLATFORM_TERMS = import.meta.env.VITE_PLATFORM_TERMS
export const PLATFORM_PRIVACY = import.meta.env.VITE_PLATFORM_PRIVACY
export const PLATFORM_LOGO = PLATFORM_URL + "/logo.png"
export const PLATFORM_NAME = import.meta.env.VITE_PLATFORM_NAME
export const PLATFORM_RELAYS = fromCsv(import.meta.env.VITE_PLATFORM_RELAYS)
export const PLATFORM_ACCENT = import.meta.env.VITE_PLATFORM_ACCENT
export const PLATFORM_DESCRIPTION = import.meta.env.VITE_PLATFORM_DESCRIPTION
export const DEFAULT_BLOSSOM_SERVERS = fromCsv(import.meta.env.VITE_DEFAULT_BLOSSOM_SERVERS)
export const BURROW_URL = import.meta.env.VITE_BURROW_URL
export const DEFAULT_PUBKEYS = import.meta.env.VITE_DEFAULT_PUBKEYS
export const DUFFLEPUD_URL = "https://dufflepud.onrender.com"
export const NIP46_PERMS =
"nip44_encrypt,nip44_decrypt," +
[CLIENT_AUTH, RELAY_JOIN, MESSAGE, THREAD, COMMENT, ROOMS, WRAP, REACTION, ZAP_REQUEST]
.map(k => `sign_event:${k}`)
.join(",")
export const colors = [
["amber", twColors.amber[600]],
["blue", twColors.blue[600]],
["cyan", twColors.cyan[600]],
["emerald", twColors.emerald[600]],
["fuchsia", twColors.fuchsia[600]],
["green", twColors.green[600]],
["indigo", twColors.indigo[600]],
["sky", twColors.sky[600]],
["lime", twColors.lime[600]],
["orange", twColors.orange[600]],
["pink", twColors.pink[600]],
["purple", twColors.purple[600]],
["red", twColors.red[600]],
["rose", twColors.rose[600]],
["sky", twColors.sky[600]],
["teal", twColors.teal[600]],
["violet", twColors.violet[600]],
["yellow", twColors.yellow[600]],
["zinc", twColors.zinc[600]],
]
export const dufflepud = (path: string) => DUFFLEPUD_URL + "/" + path
export const entityLink = (entity: string) => `https://coracle.social/${entity}`
export const pubkeyLink = (pubkey: string, relays = Router.get().FromPubkeys([pubkey]).getUrls()) =>
entityLink(nip19.nprofileEncode({pubkey, relays}))
export const bootstrapPubkeys = derived(userFollows, $userFollows => {
const appPubkeys = DEFAULT_PUBKEYS.split(",")
const userPubkeys = shuffle(getPubkeyTagValues(getListTags($userFollows)))
return userPubkeys.length > 5 ? userPubkeys : [...userPubkeys, ...appPubkeys]
})
export const trackerStore = makeTrackerStore()
export const repositoryStore = makeRepositoryStore()
export const deriveEvent = (idOrAddress: string, hints: string[] = []) => {
let attempted = false
const filters = getIdFilters([idOrAddress])
const relays = [...hints, ...INDEXER_RELAYS]
return derived(
deriveEvents(repository, {filters, includeDeleted: true}),
(events: TrustedEvent[]) => {
if (!attempted && events.length === 0) {
load({relays, filters})
attempted = true
}
return events[0]
},
)
}
export const getUrlsForEvent = derived([trackerStore, thunks], ([$tracker, $thunks]) => {
const getThunksByEventId = memoize(() => {
const thunksByEventId = new Map<string, Thunk[]>()
for (const thunk of $thunks) {
pushToMapKey(thunksByEventId, thunk.event.id, thunk)
}
return thunksByEventId
})
return (id: string) => {
const urls = Array.from($tracker.getRelays(id))
for (const thunk of getThunksByEventId().get(id) || []) {
for (const url of thunk.options.relays) {
urls.push(url)
}
}
return uniq(urls)
}
})
export const getEventsForUrl = (url: string, filters: Filter[]) => {
const ids = uniq([
...tracker.getIds(url),
...get(thunks)
.filter(t => t.options.relays.includes(url))
.map(t => t.event.id),
])
return repository.query(filters.map(assoc("ids", ids)))
}
export const deriveEventsForUrl = (url: string, filters: Filter[]) =>
derived([trackerStore, thunks], ([$tracker, $thunks]) => {
const ids = uniq([
...$tracker.getIds(url),
...$thunks.filter(t => t.options.relays.includes(url)).map(t => t.event.id),
])
return repository.query(filters.map(assoc("ids", ids)))
})
export const deriveSignedEventsForUrl = (url: string, filters: Filter[]) =>
derived(
[deriveEventsForUrl(url, filters), deriveRelay(url)],
([$events, $relay]) => $events,
// Disable this check for now since khatru doesn't support self
// $relay?.self ? $events.filter(spec({pubkey: $relay.self})) : [],
)
// Context
appContext.dufflepudUrl = DUFFLEPUD_URL
routerContext.getIndexerRelays = always(INDEXER_RELAYS)
netContext.isEventValid = (event: TrustedEvent, url: string) =>
getSetting<string[]>("trusted_relays").includes(url) || verifyEvent(event)
// Filters
export const makeCommentFilter = (kinds: number[], extra: Filter = {}) => ({
kinds: [COMMENT],
"#K": kinds.map(String),
...extra,
})
export const REACTION_KINDS = [REPORT, DELETE, REACTION]
if (ENABLE_ZAPS) {
REACTION_KINDS.push(ZAP_RESPONSE)
}
export const CONTENT_KINDS = [ZAP_GOAL, EVENT_TIME, THREAD]
export const MESSAGE_KINDS = [...CONTENT_KINDS, MESSAGE]
// Settings
export const SETTINGS = "flotilla/settings"
export type SettingsValues = {
show_media: boolean
hide_sensitive: boolean
trusted_relays: string[]
report_usage: boolean
report_errors: boolean
send_delay: number
font_size: number
play_notification_sound: boolean
show_notifications_badge: boolean
}
export type Settings = {
event: TrustedEvent
values: SettingsValues
}
export const defaultSettings = {
show_media: true,
hide_sensitive: true,
trusted_relays: [],
report_usage: true,
report_errors: true,
send_delay: 0,
font_size: 1,
play_notification_sound: true,
show_notifications_badge: true,
}
export const settings = deriveEventsMapped<Settings>(repository, {
filters: [{kinds: [APP_DATA], "#d": [SETTINGS]}],
itemToEvent: item => item.event,
eventToItem: async (event: TrustedEvent) => ({
event,
values: {...defaultSettings, ...parseJson(await ensurePlaintext(event))},
}),
})
export const {
indexStore: settingsByPubkey,
deriveItem: deriveSettings,
loadItem: loadSettings,
} = collection({
name: "settings",
store: settings,
getKey: settings => settings.event.pubkey,
load: makeOutboxLoader(APP_DATA, {"#d": [SETTINGS]}),
})
export const userSettings = makeUserData({
mapStore: settingsByPubkey,
loadItem: loadSettings,
})
export const loadUserSettings = makeUserLoader(loadSettings)
export const userSettingsValues = derived(userSettings, $s => $s?.values || defaultSettings)
export const getSetting = <T>(key: keyof Settings["values"]) => get(userSettingsValues)[key] as T
// Relays sending events with empty signatures that the user has to choose to trust
export const relaysPendingTrust = writable<string[]>([])
// Relays that mostly send restricted responses to requests and events
export const relaysMostlyRestricted = writable<Record<string, string>>({})
// Relay selections
export const userReadRelays = derived(userRelaySelections, $l =>
getRelaysFromList($l, RelayMode.Read),
)
export const userWriteRelays = derived(userRelaySelections, $l =>
getRelaysFromList($l, RelayMode.Write),
)
export const userInboxRelays = derived(userInboxRelaySelections, $l => getRelaysFromList($l))
// Alerts
export type Alert = {
event: TrustedEvent
tags: string[][]
}
export const alerts = deriveEventsMapped<Alert>(repository, {
filters: [{kinds: [ALERT_EMAIL, ALERT_WEB, ALERT_IOS, ALERT_ANDROID]}],
itemToEvent: item => item.event,
eventToItem: async event => {
const $signer = signer.get()
if ($signer) {
const tags = parseJson(await decrypt($signer, NOTIFIER_PUBKEY, event.content))
return {event, tags}
}
},
})
export const getAlertFeed = (alert: Alert) =>
tryCatch(() => JSON.parse(getTagValue("feed", alert.tags)!))
export const dmAlert = derived(alerts, $alerts =>
$alerts.find(alert => {
const feed = getAlertFeed(alert)
return findFeed(feed, f => isKindFeed(f) && f.includes(WRAP))
}),
)
// Alert Statuses
export type AlertStatus = {
event: TrustedEvent
tags: string[][]
}
export const alertStatuses = deriveEventsMapped<AlertStatus>(repository, {
filters: [{kinds: [ALERT_STATUS]}],
itemToEvent: item => item.event,
eventToItem: async event => {
const $signer = signer.get()
if ($signer) {
const tags = parseJson(await decrypt($signer, NOTIFIER_PUBKEY, event.content))
return {event, tags}
}
},
})
export const deriveAlertStatus = (address: string) =>
derived(alertStatuses, statuses => statuses.find(s => getTagValue("d", s.event.tags) === address))
// Chats
export const chatMessages = deriveEvents(repository, {
filters: [{kinds: [DIRECT_MESSAGE, DIRECT_MESSAGE_FILE]}],
})
export type Chat = {
id: string
pubkeys: string[]
messages: TrustedEvent[]
last_activity: number
search_text: string
}
export const makeChatId = (pubkeys: string[]) => sort(uniq(pubkeys.concat(pubkey.get()!))).join(",")
export const splitChatId = (id: string) => id.split(",")
export const chats = derived(
[pubkey, chatMessages, profilesByPubkey],
([$pubkey, $messages, $profilesByPubkey]) => {
const messagesByChatId = new Map<string, TrustedEvent[]>()
for (const message of $messages) {
const chatId = makeChatId(getPubkeyTagValues(message.tags).concat(message.pubkey))
pushToMapKey(messagesByChatId, chatId, message)
}
const displayPubkey = (pubkey: string) => {
const profile = $profilesByPubkey.get(pubkey)
return profile ? displayProfile(profile) : ""
}
return sortBy(
c => -c.last_activity,
Array.from(messagesByChatId.entries()).map(([id, events]): Chat => {
const pubkeys = remove($pubkey!, splitChatId(id))
const messages = sortBy(e => -e.created_at, uniqBy(prop("id"), events))
const last_activity = messages[0].created_at
const search_text =
pubkeys.length === 0
? displayPubkey($pubkey!) + " note to self"
: pubkeys.map(displayPubkey).join(" ")
return {id, pubkeys, messages, last_activity, search_text}
}),
)
},
)
export const {
indexStore: chatsById,
deriveItem: deriveChat,
loadItem: loadChat,
} = collection({
name: "chats",
store: chats,
getKey: chat => chat.id,
load: always(Promise.resolve()),
})
export const chatSearch = derived(chats, $chats =>
createSearch($chats, {
getValue: (chat: Chat) => chat.id,
fuseOptions: {keys: ["search_text"]},
}),
)
// Rooms
export const messages = deriveEvents(repository, {filters: [{kinds: [MESSAGE]}]})
export type Room = PublishedRoomMeta & {
id: string
url: string
}
export const makeRoomId = (url: string, h: string) => `${url}'${h}`
export const splitRoomId = (id: string) => id.split("'")
export const hasNip29 = (relay?: RelayProfile) =>
relay?.supported_nips?.map?.(String)?.includes?.("29")
export const roomMetas = deriveEventsMapped<PublishedRoomMeta>(repository, {
filters: [{kinds: [ROOM_META]}],
itemToEvent: item => item.event,
eventToItem: readRoomMeta,
})
export const roomDeletes = deriveEvents(repository, {
filters: [{kinds: [ROOM_DELETE]}],
})
export const rooms = derived(
[roomMetas, roomDeletes, getUrlsForEvent],
([$roomMetas, $roomDeletes, $getUrlsForEvent]) => {
const result = new Map<string, Room>()
const deletedByH = new Map<string, number>()
for (const event of $roomDeletes) {
for (const h of getTagValues("h", event.tags)) {
deletedByH.set(h, max([deletedByH.get(h), event.created_at]))
}
}
for (const meta of $roomMetas) {
if (gt(deletedByH.get(meta.h), meta.event.created_at)) {
continue
}
for (const url of $getUrlsForEvent(meta.event.id)) {
const id = makeRoomId(url, meta.h)
result.set(id, {...meta, url, id})
}
}
return Array.from(result.values())
},
)
export const roomsByUrl = derived(rooms, $rooms => groupBy(c => c.url, $rooms))
export const {
indexStore: roomsById,
deriveItem: _deriveRoom,
loadItem: _loadRoom,
} = collection({
name: "rooms",
store: rooms,
getKey: room => room.id,
load: async (id: string) => {
const [url, h] = splitRoomId(id)
await load({
relays: [url],
filters: [{kinds: [ROOM_META], "#d": [h]}],
})
},
})
export const deriveRoom = (url: string, h: string) =>
derived(_deriveRoom(makeRoomId(url, h)), $meta => $meta || makeRoomMeta({h}))
export const displayRoom = (url: string, h: string) =>
roomsById.get().get(makeRoomId(url, h))?.name || h
export const roomComparator = (url: string) => (h: string) => displayRoom(url, h).toLowerCase()
// User space/room selections
export const groupSelections = deriveEventsMapped<PublishedList>(repository, {
filters: [{kinds: [ROOMS]}],
itemToEvent: item => item.event,
eventToItem: (event: TrustedEvent) => readList(asDecryptedEvent(event)),
})
export const {
indexStore: groupSelectionsByPubkey,
deriveItem: deriveGroupSelections,
loadItem: loadGroupSelections,
} = collection({
name: "groupSelections",
store: groupSelections,
getKey: list => list.event.pubkey,
load: makeOutboxLoader(ROOMS),
})
export const groupSelectionsPubkeysByUrl = derived(groupSelections, $groupSelections => {
const result = new Map<string, Set<string>>()
for (const list of $groupSelections) {
const tags = getListTags(list)
for (const url of getRelayTagValues(tags)) {
addToMapKey(result, url, list.event.pubkey)
}
for (const tag of getGroupTags(tags)) {
const url = tag[2] || ""
if (isRelayUrl(url)) {
addToMapKey(result, url, list.event.pubkey)
}
}
}
return result
})
export const getSpaceUrlsFromGroupSelections = ($groupSelections: List | undefined) => {
const tags = getListTags($groupSelections)
const urls = getRelayTagValues(tags)
for (const tag of getGroupTags(tags)) {
const url = tag[2] || ""
if (isRelayUrl(url)) {
urls.push(url)
}
}
return uniq(urls.map(normalizeRelayUrl))
}
export const getSpaceRoomsFromGroupSelections = (
url: string,
$groupSelections: List | undefined,
) => {
const rooms: string[] = []
for (const [_, h, relay] of getGroupTags(getListTags($groupSelections))) {
if (url === relay) {
rooms.push(h)
}
}
return sortBy(roomComparator(url), rooms)
}
export const userGroupSelections = makeUserData({
mapStore: groupSelectionsByPubkey,
loadItem: loadGroupSelections,
})
export const loadUserGroupSelections = makeUserLoader(loadGroupSelections)
export const userSpaceUrls = derived(userGroupSelections, getSpaceUrlsFromGroupSelections)
export const deriveUserRooms = (url: string) =>
derived([userGroupSelections, roomsById], ([$userGroupSelections, $roomsById]) => {
const rooms: string[] = []
for (const h of getSpaceRoomsFromGroupSelections(url, $userGroupSelections)) {
if ($roomsById.has(makeRoomId(url, h))) {
rooms.push(h)
}
}
return sortBy(roomComparator(url), rooms)
})
export const deriveOtherRooms = (url: string) =>
derived([deriveUserRooms(url), roomsByUrl], ([$userRooms, $roomsByUrl]) => {
const rooms: string[] = []
for (const {h} of $roomsByUrl.get(url) || []) {
if (!$userRooms.includes(h)) {
rooms.push(h)
}
}
return sortBy(roomComparator(url), rooms)
})
// Space/room memberships
export const deriveSpaceMembers = (url: string) =>
derived(
deriveSignedEventsForUrl(url, [
{kinds: [RELAY_ADD_MEMBER, RELAY_REMOVE_MEMBER, RELAY_MEMBERS]},
]),
$events => {
const membersEvent = $events.find(spec({kind: RELAY_MEMBERS}))
if (membersEvent) {
return getTagValues("member", membersEvent.tags)
}
const members = new Set<string>()
for (const event of sortBy(e => e.created_at, $events)) {
const pubkeys = getPubkeyTagValues(event.tags)
if (event.kind === RELAY_ADD_MEMBER) {
for (const pubkey of pubkeys) {
members.add(pubkey)
}
}
if (event.kind === RELAY_REMOVE_MEMBER) {
for (const pubkey of pubkeys) {
members.delete(pubkey)
}
}
}
return Array.from(members)
},
)
export const deriveRoomMembers = (url: string, h: string) =>
derived(
deriveEventsForUrl(url, [
{kinds: [ROOM_MEMBERS], "#d": [h]},
{kinds: [ROOM_ADD_MEMBER, ROOM_REMOVE_MEMBER], "#h": [h]},
]),
$events => {
const membersEvent = $events.find(spec({kind: ROOM_MEMBERS}))
if (membersEvent) {
return getPubkeyTagValues(membersEvent.tags)
}
const members = new Set<string>()
for (const event of sortBy(e => -e.created_at, $events)) {
const pubkeys = getPubkeyTagValues(event.tags)
if (event.kind === ROOM_ADD_MEMBER) {
for (const pubkey of pubkeys) {
members.add(pubkey)
}
}
if (event.kind === ROOM_REMOVE_MEMBER) {
for (const pubkey of pubkeys) {
members.delete(pubkey)
}
}
}
return Array.from(members)
},
)
export const deriveRoomAdmins = (url: string, h: string) =>
derived(deriveEventsForUrl(url, [{kinds: [ROOM_ADMINS], "#d": [h]}]), $events => {
const adminsEvent = first($events)
if (adminsEvent) {
return getPubkeyTagValues(adminsEvent.tags)
}
return []
})
// User membership status
export enum MembershipStatus {
Initial,
Pending,
Granted,
}
export const deriveUserIsSpaceAdmin = (url: string) => {
const store = writable(false)
manageRelay(url, {method: ManagementMethod.SupportedMethods, params: []}).then(res =>
store.set(Boolean(res.result?.length)),
)
return store
}
export const deriveUserSpaceMembershipStatus = (url: string) =>
derived(
[
pubkey,
deriveSpaceMembers(url),
deriveEventsForUrl(url, [{kinds: [RELAY_JOIN, RELAY_LEAVE]}]),
deriveUserIsSpaceAdmin(url),
],
([$pubkey, $members, $events, $isAdmin]) => {
const isMember = $members.includes($pubkey!) || $isAdmin
for (const event of $events) {
if (event.pubkey !== $pubkey) {
continue
}
if (event.kind === RELAY_JOIN) {
return isMember ? MembershipStatus.Granted : MembershipStatus.Pending
}
if (event.kind === RELAY_LEAVE) {
return MembershipStatus.Initial
}
}
return isMember ? MembershipStatus.Granted : MembershipStatus.Initial
},
)
export const deriveUserIsRoomAdmin = (url: string, h: string) =>
derived(
[pubkey, deriveRoomAdmins(url, h), deriveUserIsSpaceAdmin(url)],
([$pubkey, $admins, $isSpaceAdmin]) => $isSpaceAdmin || $admins.includes($pubkey!),
)
export const deriveUserRoomMembershipStatus = (url: string, h: string) =>
derived(
[
pubkey,
deriveRoomMembers(url, h),
deriveEventsForUrl(url, [{kinds: [ROOM_JOIN, ROOM_LEAVE], "#h": [h]}]),
deriveUserIsRoomAdmin(url, h),
],
([$pubkey, $members, $events, $isAdmin]) => {
const isMember = $members.includes($pubkey!) || $isAdmin
for (const event of $events) {
if (event.pubkey !== $pubkey) {
continue
}
if (event.kind === ROOM_JOIN) {
return isMember ? MembershipStatus.Granted : MembershipStatus.Pending
}
if (event.kind === ROOM_LEAVE) {
return MembershipStatus.Initial
}
}
return isMember ? MembershipStatus.Granted : MembershipStatus.Initial
},
)
export const deriveUserCanCreateRoom = (url: string) =>
derived(
[
pubkey,
deriveEventsForUrl(url, [{kinds: [ROOM_CREATE_PERMISSION]}]),
deriveUserIsSpaceAdmin(url),
],
([$pubkey, $events, $isAdmin]) => {
for (const event of $events) {
if (getPubkeyTagValues(event.tags).includes($pubkey!)) {
return true
}
}
return $isAdmin
},
)
// Other utils
export const encodeRelay = (url: string) =>
encodeURIComponent(
normalizeRelayUrl(url)
.replace(/^wss:\/\//, "")
.replace(/\/$/, ""),
)
export const decodeRelay = (url: string) => normalizeRelayUrl(decodeURIComponent(url))
export const displayReaction = (content: string) => {
if (!content || content === "+") return "❤️"
if (content === "-") return "👎"
return content
}
export const deriveSocket = (url: string) =>
custom<Socket>(set => {
const pool = Pool.get()
const socket = pool.get(url)
set(socket)
const subs = [
on(socket, SocketEvent.Error, () => set(socket)),
on(socket, SocketEvent.Status, () => set(socket)),
on(socket.auth, AuthStateEvent.Status, () => set(socket)),
]
return () => subs.forEach(call)
})
export const deriveSocketStatus = (url: string) =>
throttled(
800,
derived([deriveSocket(url), relaysMostlyRestricted], ([$socket, $relaysMostlyRestricted]) => {
if ($socket.status === SocketStatus.Opening) {
return {theme: "warning", title: "Connecting"}
}
if ($socket.status === SocketStatus.Closing) {
return {theme: "gray-500", title: "Not Connected"}
}
if ($socket.status === SocketStatus.Closed) {
return {theme: "gray-500", title: "Not Connected"}
}
if ($socket.status === SocketStatus.Error) {
return {theme: "error", title: "Failed to Connect"}
}
if ($socket.auth.status === AuthStatus.Requested) {
return {theme: "warning", title: "Authenticating"}
}
if ($socket.auth.status === AuthStatus.PendingSignature) {
return {theme: "warning", title: "Authenticating"}
}
if ($socket.auth.status === AuthStatus.DeniedSignature) {
return {theme: "error", title: "Failed to Authenticate"}
}
if ($socket.auth.status === AuthStatus.PendingResponse) {
return {theme: "warning", title: "Authenticating"}
}
if ($socket.auth.status === AuthStatus.Forbidden) {
return {theme: "error", title: "Access Denied"}
}
if ($relaysMostlyRestricted[url]) {
return {theme: "error", title: "Access Denied"}
}
return {theme: "success", title: "Connected"}
}),
)
export const deriveTimeout = (timeout: number) => {
const store = writable<boolean>(false)
setTimeout(() => store.set(true), timeout)
return derived(store, identity)
}
export const shouldIgnoreError = (error: string) => {
const isIgnored = error.startsWith("mute: ")
const isAborted = error.includes("Signing was aborted")
const isStrictNip29Relay = error.includes("missing group (`h`) tag")
return isIgnored || isAborted || isStrictNip29Relay
}
export const deriveRelayAuthError = (url: string, claim = "") => {
const stripPrefix = (m: string) => m.replace(/^\w+: /, "")
// Kick off the auth process
Pool.get().get(url).auth.attemptAuth(sign)
// Attempt to join the relay
const thunk = publishThunk({
event: makeEvent(RELAY_JOIN, {tags: [["claim", claim]]}),
relays: [url],
})
return derived(
[thunk, relaysMostlyRestricted, deriveSocket(url)],
([$thunk, $relaysMostlyRestricted, $socket]) => {
if ($socket.auth.status === AuthStatus.Forbidden && $socket.auth.details) {
return stripPrefix($socket.auth.details)
}
if ($relaysMostlyRestricted[url]) {
return stripPrefix($relaysMostlyRestricted[url])
}
const error = getThunkError($thunk)
if (error) {
const isEmptyInvite = !claim && error.includes("invite code")
if (!shouldIgnoreError(error) && !isEmptyInvite) {
return stripPrefix(error) || "join request rejected"
}
}
},
)
}
export type InviteData = {url: string; claim: string}
export const parseInviteLink = (invite: string): InviteData | undefined =>
tryCatch(() => {
const {r: relay = "", c: claim = ""} = fromPairs(Array.from(new URL(invite).searchParams))
const url = normalizeRelayUrl(relay)
if (isRelayUrl(url)) {
return {url, claim}
}
}) ||
tryCatch(() => {
const url = normalizeRelayUrl(invite)
if (isRelayUrl(url)) {
return {url, claim: ""}
}
})