53 lines
1.1 KiB
TypeScript
Executable File
53 lines
1.1 KiB
TypeScript
Executable File
#!/usr/bin/env -S deno run
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import { readLines } from 'https://deno.land/std@0.178.0/io/mod.ts';
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const HELLTHREAD_LIMIT = Number(Deno.env.get('HELLTHREAD_LIMIT') || 100);
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interface InputMessage {
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type: 'new' | 'lookback';
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event: Event;
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receivedAt: number;
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sourceType: 'IP4' | 'IP6' | 'Import' | 'Stream' | 'Sync';
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sourceInfo: string;
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}
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interface OutputMessage {
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id: string;
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action: 'accept' | 'reject' | 'shadowReject';
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msg: string;
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}
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interface Event {
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id: string;
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sig: string;
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kind: number;
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tags: string[][];
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pubkey: string;
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content: string;
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created_at: number;
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}
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function handleMessage(msg: InputMessage): OutputMessage {
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if (msg.event.kind === 1) {
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const p = msg.event.tags.filter((tag) => tag[0] === 'p');
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if (p.length > HELLTHREAD_LIMIT) {
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return {
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id: msg.event.id,
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action: 'reject',
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msg: `Event rejected due to ${p.length} "p" tags (${HELLTHREAD_LIMIT} is the limit).`,
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};
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}
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}
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return {
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id: msg.event.id,
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action: 'accept',
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msg: '',
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};
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}
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for await (const line of readLines(Deno.stdin)) {
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console.log(JSON.stringify(handleMessage(JSON.parse(line))));
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}
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