96 lines
2.6 KiB
TypeScript
96 lines
2.6 KiB
TypeScript
|
import { lastValueFrom, timeout, toArray, EMPTY } from 'rxjs';
|
||
|
|
import { catchError } from 'rxjs/operators';
|
||
|
|
import type { NostrEvent } from 'applesauce-core/helpers/event';
|
||
|
|
import { pool } from './pool';
|
||
|
|
import {
|
||
|
|
AUTHOR_PUBKEY_HEX,
|
||
|
|
BOOTSTRAP_RELAY,
|
||
|
|
FALLBACK_READ_RELAYS,
|
||
|
|
RELAY_TIMEOUT_MS
|
||
|
|
} from './config';
|
||
|
|
|
||
|
|
export interface OutboxRelay {
|
||
|
|
url: string;
|
||
|
|
/** true = zum Lesen zu nutzen (kein dritter Tag-Wert oder "read") */
|
||
|
|
read: boolean;
|
||
|
|
/** true = zum Schreiben zu nutzen (kein dritter Tag-Wert oder "write") */
|
||
|
|
write: boolean;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Lädt die NIP-65-Relay-Liste (kind:10002) des Autors vom Bootstrap-Relay.
|
||
|
|
* Fallback auf FALLBACK_READ_RELAYS, wenn das Event nicht innerhalb von
|
||
|
|
* RELAY_TIMEOUT_MS gefunden wird.
|
||
|
|
*
|
||
|
|
* Interpretation des dritten Tag-Werts:
|
||
|
|
* - nicht gesetzt → read + write
|
||
|
|
* - "read" → nur read
|
||
|
|
* - "write" → nur write
|
||
|
|
*/
|
||
|
|
export async function loadOutboxRelays(): Promise<OutboxRelay[]> {
|
||
|
|
const event = await firstEvent();
|
||
|
|
|
||
|
|
if (!event) {
|
||
|
|
return FALLBACK_READ_RELAYS.map((url) => ({ url, read: true, write: true }));
|
||
|
|
}
|
||
|
|
|
||
|
|
const relays: OutboxRelay[] = [];
|
||
|
|
for (const tag of event.tags) {
|
||
|
|
if (tag[0] !== 'r' || !tag[1]) continue;
|
||
|
|
const mode = tag[2];
|
||
|
|
relays.push({
|
||
|
|
url: tag[1],
|
||
|
|
read: mode !== 'write',
|
||
|
|
write: mode !== 'read'
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (relays.length === 0) {
|
||
|
|
return FALLBACK_READ_RELAYS.map((url) => ({ url, read: true, write: true }));
|
||
|
|
}
|
||
|
|
|
||
|
|
return relays;
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Nur die Read-URLs aus OutboxRelay[] */
|
||
|
|
export function readUrls(relays: OutboxRelay[]): string[] {
|
||
|
|
return relays.filter((r) => r.read).map((r) => r.url);
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Nur die Write-URLs aus OutboxRelay[] */
|
||
|
|
export function writeUrls(relays: OutboxRelay[]): string[] {
|
||
|
|
return relays.filter((r) => r.write).map((r) => r.url);
|
||
|
|
}
|
||
|
|
|
||
|
|
// ---------- Internes --------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Fragt das neueste kind:10002-Event vom Bootstrap-Relay ab.
|
||
|
|
* Sammelt alle Events bis EOSE (`pool.request(...)` emittiert nur Events
|
||
|
|
* und completes bei EOSE), nimmt das neueste, oder null falls keines.
|
||
|
|
*/
|
||
|
|
async function firstEvent(): Promise<NostrEvent | null> {
|
||
|
|
try {
|
||
|
|
const events = await lastValueFrom(
|
||
|
|
pool
|
||
|
|
.request([BOOTSTRAP_RELAY], {
|
||
|
|
kinds: [10002],
|
||
|
|
authors: [AUTHOR_PUBKEY_HEX],
|
||
|
|
limit: 1
|
||
|
|
})
|
||
|
|
.pipe(
|
||
|
|
timeout(RELAY_TIMEOUT_MS),
|
||
|
|
toArray(),
|
||
|
|
catchError(() => EMPTY)
|
||
|
|
),
|
||
|
|
{ defaultValue: [] as NostrEvent[] }
|
||
|
|
);
|
||
|
|
if (events.length === 0) return null;
|
||
|
|
return events.reduce((best, cur) =>
|
||
|
|
cur.created_at > best.created_at ? cur : best
|
||
|
|
);
|
||
|
|
} catch {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
}
|