mirror of
https://github.com/BlowaterNostr/blowater.git
synced 2024-10-18 15:43:20 +00:00
98 lines
2.8 KiB
TypeScript
98 lines
2.8 KiB
TypeScript
import { Datebase_View } from "../database.ts";
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import { NostrAccountContext, NostrKind } from "../lib/nostr-ts/nostr.ts";
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import { Parsed_Event, Profile_Nostr_Event } from "../nostr.ts";
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import { prepareNormalNostrEvent } from "../lib/nostr-ts/event.ts";
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import { semaphore } from "https://raw.githubusercontent.com/BlowaterNostr/csp/master/csp.ts";
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import { ProfileAdder } from "./gm.ts";
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import { ConnectionPool } from "../lib/nostr-ts/relay-pool.ts";
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export class ProfileSyncer implements ProfileAdder {
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readonly userSet = new Set<string>();
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private readonly lock = semaphore(1);
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constructor(
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private readonly database: Datebase_View,
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private readonly pool: ConnectionPool,
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) {
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}
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async add(...users: string[]) {
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const size = this.userSet.size;
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for (const user of users) {
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this.userSet.add(user);
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}
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if (this.userSet.size == size) {
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return;
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}
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const resp = await this.lock(async () => {
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await this.pool.closeSub(ProfileSyncer.name);
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const resp = await this.pool.newSub(ProfileSyncer.name, {
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authors: Array.from(this.userSet),
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kinds: [NostrKind.META_DATA],
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});
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return resp;
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});
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if (resp instanceof Error) {
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console.log(resp);
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return;
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}
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for await (let { res: nostrMessage, url: relayUrl } of resp.chan) {
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if (nostrMessage.type === "EVENT" && nostrMessage.event.content) {
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this.database.addEvent(nostrMessage.event, relayUrl);
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}
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}
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}
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}
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export async function saveProfile(
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profile: ProfileData,
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sender: NostrAccountContext,
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pool: ConnectionPool,
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) {
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const event = await prepareNormalNostrEvent(
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sender,
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{ kind: NostrKind.META_DATA, content: JSON.stringify(profile) },
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);
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pool.sendEvent(event);
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}
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// aka user profile
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export interface ProfileData {
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name?: string;
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picture?: string;
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about?: string;
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website?: string;
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banner?: string;
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[key: string]: string | undefined;
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}
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export function ProfileFromNostrEvent(
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event: Parsed_Event<NostrKind.META_DATA>,
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) {
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const profileData = parseJSON<ProfileData>(event.content);
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if (profileData instanceof Error) {
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return profileData;
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}
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const e: Profile_Nostr_Event = {
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kind: event.kind,
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id: event.id,
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sig: event.sig,
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created_at: event.created_at,
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pubkey: event.pubkey,
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tags: event.tags,
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content: event.content,
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parsedTags: event.parsedTags,
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profile: profileData,
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publicKey: event.publicKey,
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};
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return e;
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}
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export function parseJSON<T>(content: string): T | Error {
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try {
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return JSON.parse(content) as T;
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} catch (e) {
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return e as Error;
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}
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}
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