codytseng
8 months ago
45 changed files with 698 additions and 766 deletions
@ -1,11 +0,0 @@
@@ -1,11 +0,0 @@
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export function isTouchDevice() { |
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return 'ontouchstart' in window || navigator.maxTouchPoints > 0 |
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} |
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export function isEmail(email: string) { |
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return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email) |
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} |
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export function isDevEnv() { |
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return process.env.NODE_ENV === 'development' |
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} |
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@ -0,0 +1,264 @@
@@ -0,0 +1,264 @@
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import { BIG_RELAY_URLS } from '@/constants' |
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import { TRelayList, TRelaySet } from '@/types' |
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import { Event, kinds } from 'nostr-tools' |
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import { getReplaceableEventIdentifier } from './event' |
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import { getAmountFromInvoice, getLightningAddressFromProfile } from './lightning' |
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import { formatPubkey, pubkeyToNpub } from './pubkey' |
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import { generateBech32IdFromETag, tagNameEquals } from './tag' |
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import { isWebsocketUrl, normalizeHttpUrl, normalizeUrl } from './url' |
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import { isTorBrowser } from './utils' |
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export function getRelayListFromEvent(event?: Event) { |
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if (!event) { |
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return { write: BIG_RELAY_URLS, read: BIG_RELAY_URLS, originalRelays: [] } |
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} |
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const torBrowserDetected = isTorBrowser() |
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const relayList = { write: [], read: [], originalRelays: [] } as TRelayList |
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event.tags.filter(tagNameEquals('r')).forEach(([, url, type]) => { |
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if (!url || !isWebsocketUrl(url)) return |
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const normalizedUrl = normalizeUrl(url) |
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if (!normalizedUrl) return |
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const scope = type === 'read' ? 'read' : type === 'write' ? 'write' : 'both' |
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relayList.originalRelays.push({ url: normalizedUrl, scope }) |
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// Filter out .onion URLs if not using Tor browser
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if (normalizedUrl.endsWith('.onion/') && !torBrowserDetected) return |
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if (type === 'write') { |
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relayList.write.push(normalizedUrl) |
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} else if (type === 'read') { |
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relayList.read.push(normalizedUrl) |
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} else { |
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relayList.write.push(normalizedUrl) |
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relayList.read.push(normalizedUrl) |
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} |
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}) |
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// If there are too many relays, use the default BIG_RELAY_URLS
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// Because they don't know anything about relays, their settings cannot be trusted
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return { |
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write: relayList.write.length && relayList.write.length <= 8 ? relayList.write : BIG_RELAY_URLS, |
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read: relayList.read.length && relayList.write.length <= 8 ? relayList.read : BIG_RELAY_URLS, |
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originalRelays: relayList.originalRelays |
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} |
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} |
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export function getProfileFromEvent(event: Event) { |
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try { |
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const profileObj = JSON.parse(event.content) |
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const username = |
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profileObj.display_name?.trim() || |
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profileObj.name?.trim() || |
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profileObj.nip05?.split('@')[0]?.trim() |
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return { |
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pubkey: event.pubkey, |
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npub: pubkeyToNpub(event.pubkey) ?? '', |
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banner: profileObj.banner, |
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avatar: profileObj.picture, |
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username: username || formatPubkey(event.pubkey), |
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original_username: username, |
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nip05: profileObj.nip05, |
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about: profileObj.about, |
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website: profileObj.website ? normalizeHttpUrl(profileObj.website) : undefined, |
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lud06: profileObj.lud06, |
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lud16: profileObj.lud16, |
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lightningAddress: getLightningAddressFromProfile(profileObj), |
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created_at: event.created_at |
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} |
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} catch (err) { |
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console.error(err) |
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return { |
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pubkey: event.pubkey, |
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npub: pubkeyToNpub(event.pubkey) ?? '', |
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username: formatPubkey(event.pubkey) |
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} |
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} |
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} |
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export function getRelaySetFromEvent(event: Event): TRelaySet { |
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const id = getReplaceableEventIdentifier(event) |
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const relayUrls = event.tags |
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.filter(tagNameEquals('relay')) |
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.map((tag) => tag[1]) |
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.filter((url) => url && isWebsocketUrl(url)) |
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.map((url) => normalizeUrl(url)) |
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let name = event.tags.find(tagNameEquals('title'))?.[1] |
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if (!name) { |
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name = id |
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} |
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return { id, name, relayUrls } |
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} |
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export function getZapInfoFromEvent(receiptEvent: Event) { |
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if (receiptEvent.kind !== kinds.Zap) return null |
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let senderPubkey: string | undefined |
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let recipientPubkey: string | undefined |
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let originalEventId: string | undefined |
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let eventId: string | undefined |
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let invoice: string | undefined |
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let amount: number | undefined |
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let comment: string | undefined |
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let description: string | undefined |
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let preimage: string | undefined |
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try { |
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receiptEvent.tags.forEach((tag) => { |
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const [tagName, tagValue] = tag |
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switch (tagName) { |
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case 'P': |
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senderPubkey = tagValue |
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break |
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case 'p': |
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recipientPubkey = tagValue |
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break |
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case 'e': |
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originalEventId = tag[1] |
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eventId = generateBech32IdFromETag(tag) |
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break |
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case 'bolt11': |
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invoice = tagValue |
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break |
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case 'description': |
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description = tagValue |
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break |
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case 'preimage': |
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preimage = tagValue |
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break |
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} |
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}) |
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if (!recipientPubkey || !invoice) return null |
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amount = invoice ? getAmountFromInvoice(invoice) : 0 |
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if (description) { |
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try { |
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const zapRequest = JSON.parse(description) |
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comment = zapRequest.content |
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if (!senderPubkey) { |
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senderPubkey = zapRequest.pubkey |
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} |
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} catch { |
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// ignore
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} |
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} |
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return { |
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senderPubkey, |
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recipientPubkey, |
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eventId, |
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originalEventId, |
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invoice, |
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amount, |
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comment, |
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preimage |
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} |
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} catch { |
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return null |
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} |
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} |
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export function getLongFormArticleMetadataFromEvent(event: Event) { |
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let title: string | undefined |
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let summary: string | undefined |
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let image: string | undefined |
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const tags = new Set<string>() |
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event.tags.forEach(([tagName, tagValue]) => { |
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if (tagName === 'title') { |
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title = tagValue |
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} else if (tagName === 'summary') { |
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summary = tagValue |
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} else if (tagName === 'image') { |
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image = tagValue |
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} else if (tagName === 't' && tagValue && tags.size < 6) { |
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tags.add(tagValue.toLocaleLowerCase()) |
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} |
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}) |
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if (!title) { |
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title = event.tags.find(tagNameEquals('d'))?.[1] ?? 'no title' |
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} |
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return { title, summary, image, tags: Array.from(tags) } |
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} |
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export function getLiveEventMetadataFromEvent(event: Event) { |
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let title: string | undefined |
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let summary: string | undefined |
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let image: string | undefined |
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let status: string | undefined |
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const tags = new Set<string>() |
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event.tags.forEach(([tagName, tagValue]) => { |
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if (tagName === 'title') { |
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title = tagValue |
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} else if (tagName === 'summary') { |
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summary = tagValue |
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} else if (tagName === 'image') { |
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image = tagValue |
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} else if (tagName === 'status') { |
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status = tagValue |
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} else if (tagName === 't' && tagValue && tags.size < 6) { |
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tags.add(tagValue.toLocaleLowerCase()) |
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} |
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}) |
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if (!title) { |
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title = event.tags.find(tagNameEquals('d'))?.[1] ?? 'no title' |
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} |
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return { title, summary, image, status, tags: Array.from(tags) } |
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} |
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export function getGroupMetadataFromEvent(event: Event) { |
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let d: string | undefined |
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let name: string | undefined |
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let about: string | undefined |
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let picture: string | undefined |
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const tags = new Set<string>() |
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event.tags.forEach(([tagName, tagValue]) => { |
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if (tagName === 'name') { |
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name = tagValue |
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} else if (tagName === 'about') { |
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about = tagValue |
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} else if (tagName === 'picture') { |
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picture = tagValue |
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} else if (tagName === 't' && tagValue) { |
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tags.add(tagValue.toLocaleLowerCase()) |
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} else if (tagName === 'd') { |
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d = tagValue |
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} |
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}) |
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if (!name) { |
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name = d ?? 'no name' |
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} |
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return { d, name, about, picture, tags: Array.from(tags) } |
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} |
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export function getCommunityDefinitionFromEvent(event: Event) { |
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let name: string | undefined |
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let description: string | undefined |
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let image: string | undefined |
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event.tags.forEach(([tagName, tagValue]) => { |
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if (tagName === 'name') { |
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name = tagValue |
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} else if (tagName === 'description') { |
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description = tagValue |
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} else if (tagName === 'image') { |
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image = tagValue |
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} |
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}) |
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if (!name) { |
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name = event.tags.find(tagNameEquals('d'))?.[1] ?? 'no name' |
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} |
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return { name, description, image } |
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} |
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