New Release #98
@ -14,71 +14,130 @@ import { NostrController } from '.'
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import { toast } from 'react-toastify'
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import { queryNip05 } from '../utils'
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import NDK, { NDKEvent, NDKSubscription } from '@nostr-dev-kit/ndk'
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import { EventEmitter } from 'tseep'
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import { localCache } from '../services'
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export class MetadataController {
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export class MetadataController extends EventEmitter {
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private nostrController: NostrController
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private specialMetadataRelay = 'wss://purplepag.es'
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constructor() {
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super()
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this.nostrController = NostrController.getInstance()
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}
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public getEmptyMetadataEvent = (): Event => {
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return {
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content: '',
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created_at: new Date().valueOf(),
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id: '',
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kind: 0,
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pubkey: '',
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sig: '',
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tags: []
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}
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}
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public findMetadata = async (hexKey: string) => {
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/**
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* Asynchronously checks for more recent metadata events authored by a specific key.
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* If a more recent metadata event is found, it is handled and returned.
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* If no more recent event is found, the current event is returned.
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* @param hexKey The hexadecimal key of the author to filter metadata events.
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* @param currentEvent The current metadata event, if any, to compare with newer events.
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* @returns A promise resolving to the most recent metadata event found, or null if none is found.
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*/
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private async checkForMoreRecentMetadata(
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hexKey: string,
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currentEvent: Event | null
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): Promise<Event | null> {
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// Define the event filter to only include metadata events authored by the given key
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const eventFilter: Filter = {
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kinds: [kinds.Metadata],
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authors: [hexKey]
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kinds: [kinds.Metadata], // Only metadata events
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authors: [hexKey] // Authored by the specified key
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}
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const pool = new SimplePool()
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// Try to get the metadata event from a special relay (wss://purplepag.es)
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const metadataEvent = await pool
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.get([this.specialMetadataRelay], eventFilter)
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.catch((err) => {
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console.error(err)
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return null
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console.error(err) // Log any errors
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return null // Return null if an error occurs
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})
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// If a valid metadata event is found from the special relay
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if (
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metadataEvent &&
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validateEvent(metadataEvent) &&
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verifyEvent(metadataEvent)
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validateEvent(metadataEvent) && // Validate the event
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verifyEvent(metadataEvent) // Verify the event's authenticity
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) {
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return metadataEvent
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// If there's no current event or the new metadata event is more recent
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if (!currentEvent || metadataEvent.created_at > currentEvent.created_at) {
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// Handle the new metadata event
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this.handleNewMetadataEvent(metadataEvent)
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return metadataEvent
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}
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}
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// If no valid metadata event is found from the special relay, get the most popular relays
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const mostPopularRelays = await this.nostrController.getMostPopularRelays()
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// Query the most popular relays for metadata events
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const events = await pool
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.querySync(mostPopularRelays, eventFilter)
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.catch((err) => {
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console.error(err)
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return null
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console.error(err) // Log any errors
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return null // Return null if an error occurs
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})
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// If events are found from the popular relays
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if (events && events.length) {
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events.sort((a, b) => b.created_at - a.created_at)
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events.sort((a, b) => b.created_at - a.created_at) // Sort events by creation date (descending)
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// Iterate through the events
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for (const event of events) {
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if (validateEvent(event) && verifyEvent(event)) {
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// If the event is valid, authentic, and more recent than the current event
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if (
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validateEvent(event) &&
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verifyEvent(event) &&
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(!currentEvent || event.created_at > currentEvent.created_at)
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) {
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// Handle the new metadata event
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this.handleNewMetadataEvent(event)
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return event
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}
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}
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}
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throw new Error('Mo metadata found.')
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return currentEvent // Return the current event if no newer event is found
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}
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/**
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* Handle new metadata events and emit them to subscribers
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*/
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private async handleNewMetadataEvent(event: VerifiedEvent) {
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// update the event in local cache
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localCache.addUserMetadata(event)
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// Emit the event to subscribers.
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this.emit(event.pubkey, event.kind, event)
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}
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/**
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* Finds metadata for a given hexadecimal key.
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*
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* @param hexKey - The hexadecimal key to search for metadata.
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* @returns A promise that resolves to the metadata event.
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*/
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public findMetadata = async (hexKey: string): Promise<Event | null> => {
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// Attempt to retrieve the metadata event from the local cache
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const cachedMetadataEvent = await localCache.getUserMetadata(hexKey)
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// If cached metadata is found, check its validity
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if (cachedMetadataEvent) {
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const oneDayInMS = 24 * 60 * 60 * 1000 // Number of milliseconds in one day
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// Check if the cached metadata is older than one day
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if (Date.now() - cachedMetadataEvent.cachedAt > oneDayInMS) {
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// If older than one day, find the metadata from relays in background
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this.checkForMoreRecentMetadata(hexKey, cachedMetadataEvent.event)
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}
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// Return the cached metadata event
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return cachedMetadataEvent.event
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}
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// If no cached metadata is found, retrieve it from relays
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return this.checkForMoreRecentMetadata(hexKey, null)
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}
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public findRelayListMetadata = async (hexKey: string) => {
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@ -142,7 +201,7 @@ export class MetadataController {
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throw new Error('No relay list metadata found.')
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}
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public extractProfileMetadataContent = (event: VerifiedEvent) => {
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public extractProfileMetadataContent = (event: Event) => {
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try {
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if (!event.content) return {}
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return JSON.parse(event.content) as ProfileMetadata
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@ -175,6 +234,7 @@ export class MetadataController {
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.publishEvent(signedMetadataEvent, [this.specialMetadataRelay])
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.then((relays) => {
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toast.success(`Metadata event published on: ${relays.join('\n')}`)
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this.handleNewMetadataEvent(signedMetadataEvent as VerifiedEvent)
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})
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.catch((err) => {
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toast.error(err.message)
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@ -193,6 +253,8 @@ export class MetadataController {
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userRelays.push(...relaySet.write)
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} else {
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const metadata = await this.findMetadata(hexKey)
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if (!metadata) return null
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const metadataContent = this.extractProfileMetadataContent(metadata)
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if (metadataContent?.nip05) {
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@ -306,4 +368,16 @@ export class MetadataController {
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}
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public validate = (event: Event) => validateEvent(event) && verifyEvent(event)
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public getEmptyMetadataEvent = (): Event => {
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return {
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content: '',
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created_at: new Date().valueOf(),
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id: '',
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kind: 0,
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pubkey: '',
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sig: '',
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tags: []
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}
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}
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}
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@ -18,8 +18,7 @@ import { MetadataController, NostrController } from '../controllers'
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import { LoginMethods } from '../store/auth/types'
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import { setUserRobotImage } from '../store/userRobotImage/action'
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import { State } from '../store/rootReducer'
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const metadataController = new MetadataController()
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import { Event, kinds } from 'nostr-tools'
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export const MainLayout = () => {
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const dispatch: Dispatch = useDispatch()
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@ -27,6 +26,8 @@ export const MainLayout = () => {
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const authState = useSelector((state: State) => state.auth)
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useEffect(() => {
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const metadataController = new MetadataController()
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const logout = () => {
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dispatch(
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setAuthState({
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@ -68,6 +69,20 @@ export const MainLayout = () => {
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nostrController.createNsecBunkerSigner(usersPubkey)
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})
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}
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const handleMetadataEvent = (event: Event) => {
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dispatch(setMetadataEvent(event))
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}
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metadataController.on(usersPubkey, (kind: number, event: Event) => {
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if (kind === kinds.Metadata) {
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handleMetadataEvent(event)
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}
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})
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metadataController.findMetadata(usersPubkey).then((metadataEvent) => {
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if (metadataEvent) handleMetadataEvent(metadataEvent)
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})
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}
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}
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@ -49,6 +49,7 @@ import type { Identifier, XYCoord } from 'dnd-core'
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import { useDrag, useDrop } from 'react-dnd'
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import saveAs from 'file-saver'
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import CopyModal from '../../components/copyModal'
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import { Event, kinds } from 'nostr-tools'
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export const CreatePage = () => {
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const navigate = useNavigate()
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@ -517,16 +518,26 @@ const DisplayUser = ({
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if (!(user.pubkey in metadata)) {
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const metadataController = new MetadataController()
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const handleMetadataEvent = (event: Event) => {
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const metadataContent =
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metadataController.extractProfileMetadataContent(event)
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if (metadataContent)
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setMetadata((prev) => ({
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...prev,
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[user.pubkey]: metadataContent
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}))
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}
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metadataController.on(user.pubkey, (kind: number, event: Event) => {
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if (kind === kinds.Metadata) {
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handleMetadataEvent(event)
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}
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})
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metadataController
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.findMetadata(user.pubkey)
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.then((metadataEvent) => {
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const metadataContent =
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metadataController.extractProfileMetadataContent(metadataEvent)
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if (metadataContent)
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setMetadata((prev) => ({
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...prev,
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[user.pubkey]: metadataContent
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}))
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if (metadataEvent) handleMetadataEvent(metadataEvent)
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})
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.catch((err) => {
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console.error(
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@ -2,7 +2,7 @@ import ContentCopyIcon from '@mui/icons-material/ContentCopy'
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import EditIcon from '@mui/icons-material/Edit'
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import { Box, IconButton, SxProps, Theme, Typography } from '@mui/material'
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import { truncate } from 'lodash'
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import { VerifiedEvent, nip19 } from 'nostr-tools'
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import { Event, VerifiedEvent, kinds, nip19 } from 'nostr-tools'
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import { useEffect, useMemo, useState } from 'react'
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import { useSelector } from 'react-redux'
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import { Link, useNavigate, useParams } from 'react-router-dom'
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@ -75,6 +75,20 @@ export const ProfilePage = () => {
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if (pubkey) {
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const getMetadata = async (pubkey: string) => {
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const handleMetadataEvent = (event: Event) => {
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const metadataContent =
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metadataController.extractProfileMetadataContent(event)
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if (metadataContent) {
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setProfileMetadata(metadataContent)
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}
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}
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metadataController.on(pubkey, (kind: number, event: Event) => {
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if (kind === kinds.Metadata) {
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handleMetadataEvent(event)
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}
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})
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const metadataEvent = await metadataController
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.findMetadata(pubkey)
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.catch((err) => {
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@ -82,13 +96,7 @@ export const ProfilePage = () => {
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return null
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})
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if (metadataEvent) {
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const metadataContent =
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metadataController.extractProfileMetadataContent(metadataEvent)
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if (metadataContent) {
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setProfileMetadata(metadataContent)
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}
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}
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if (metadataEvent) handleMetadataEvent(metadataEvent)
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setIsLoading(false)
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}
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|
@ -11,7 +11,7 @@ import {
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Typography,
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useTheme
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} from '@mui/material'
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import { UnsignedEvent, nip19, kinds, VerifiedEvent } from 'nostr-tools'
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import { UnsignedEvent, nip19, kinds, VerifiedEvent, Event } from 'nostr-tools'
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import { useEffect, useMemo, useRef, useState } from 'react'
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import { Link, useParams } from 'react-router-dom'
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import { toast } from 'react-toastify'
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@ -95,6 +95,20 @@ export const ProfileSettingsPage = () => {
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if (pubkey) {
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const getMetadata = async (pubkey: string) => {
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const handleMetadataEvent = (event: Event) => {
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const metadataContent =
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metadataController.extractProfileMetadataContent(event)
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if (metadataContent) {
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setProfileMetadata(metadataContent)
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}
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}
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metadataController.on(pubkey, (kind: number, event: Event) => {
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if (kind === kinds.Metadata) {
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handleMetadataEvent(event)
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}
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})
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const metadataEvent = await metadataController
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.findMetadata(pubkey)
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.catch((err) => {
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@ -102,13 +116,7 @@ export const ProfileSettingsPage = () => {
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return null
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})
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if (metadataEvent) {
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const metadataContent =
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metadataController.extractProfileMetadataContent(metadataEvent)
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if (metadataContent) {
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setProfileMetadata(metadataContent)
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}
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}
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if (metadataEvent) handleMetadataEvent(metadataEvent)
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setIsLoading(false)
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}
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|
@ -20,7 +20,7 @@ import saveAs from 'file-saver'
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import JSZip from 'jszip'
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import _ from 'lodash'
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import { MuiFileInput } from 'mui-file-input'
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import { Event, verifyEvent } from 'nostr-tools'
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import { Event, kinds, verifyEvent } from 'nostr-tools'
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import { useEffect, useState } from 'react'
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import { useSelector } from 'react-redux'
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import { useNavigate, useSearchParams } from 'react-router-dom'
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@ -846,17 +846,27 @@ const DisplayMeta = ({
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hexKeys.forEach((key) => {
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if (!(key in metadata)) {
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const handleMetadataEvent = (event: Event) => {
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const metadataContent =
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metadataController.extractProfileMetadataContent(event)
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if (metadataContent)
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setMetadata((prev) => ({
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...prev,
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[key]: metadataContent
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}))
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}
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metadataController.on(key, (kind: number, event: Event) => {
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if (kind === kinds.Metadata) {
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handleMetadataEvent(event)
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}
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})
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metadataController
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.findMetadata(key)
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.then((metadataEvent) => {
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const metadataContent =
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metadataController.extractProfileMetadataContent(metadataEvent)
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if (metadataContent)
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setMetadata((prev) => ({
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...prev,
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[key]: metadataContent
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}))
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if (metadataEvent) handleMetadataEvent(metadataEvent)
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})
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.catch((err) => {
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console.error(`error occurred in finding metadata for: ${key}`, err)
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|
@ -10,7 +10,7 @@ import {
|
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} from '@mui/material'
|
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import JSZip from 'jszip'
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import { MuiFileInput } from 'mui-file-input'
|
||||
import { Event, verifyEvent } from 'nostr-tools'
|
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import { Event, kinds, verifyEvent } from 'nostr-tools'
|
||||
import { useEffect, useState } from 'react'
|
||||
import { toast } from 'react-toastify'
|
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import { LoadingSpinner } from '../../components/LoadingSpinner'
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@ -107,16 +107,26 @@ export const VerifyPage = () => {
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const pubkey = npubToHex(user)!
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|
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if (!(pubkey in metadata)) {
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const handleMetadataEvent = (event: Event) => {
|
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const metadataContent =
|
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metadataController.extractProfileMetadataContent(event)
|
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if (metadataContent)
|
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setMetadata((prev) => ({
|
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...prev,
|
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[pubkey]: metadataContent
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}))
|
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}
|
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|
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metadataController.on(pubkey, (kind: number, event: Event) => {
|
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if (kind === kinds.Metadata) {
|
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handleMetadataEvent(event)
|
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}
|
||||
})
|
||||
|
||||
metadataController
|
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.findMetadata(pubkey)
|
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.then((metadataEvent) => {
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const metadataContent =
|
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metadataController.extractProfileMetadataContent(metadataEvent)
|
||||
if (metadataContent)
|
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setMetadata((prev) => ({
|
||||
...prev,
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||||
[pubkey]: metadataContent
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}))
|
||||
if (metadataEvent) handleMetadataEvent(metadataEvent)
|
||||
})
|
||||
.catch((err) => {
|
||||
console.error(
|
||||
|
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Block a user