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Add debug logging for rate-limit-policy.

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This commit is contained in:
Brian Lee 2024-01-07 18:49:30 -08:00
parent e6624f9105
commit 4d7d001288
1 changed files with 13 additions and 2 deletions
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13
src/policies/rate-limit-policy.ts Executable file → Normal file
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@ -12,6 +12,10 @@ interface RateLimit {
whitelist?: string[];
/** Database connection string. Default: `sqlite:///tmp/strfry-rate-limit-policy.sqlite3` */
databaseUrl?: string;
/** Enable debug mode to log rejected IPs. Default: `false`. */
debugMode?: boolean;
/** Path to the debug log file. Default: `./rate-limit-debug.log` */
debugLogPath?: string;
}
/**
@ -33,6 +37,8 @@ const rateLimitPolicy: Policy<RateLimit> = async (msg, opts = {}) => {
"51.81.244.81", // nostr.wine broadcast
],
databaseUrl = 'sqlite:///tmp/strfry-rate-limit-policy.sqlite3',
debugMode = false,
debugLogPath = './rate-limit-debug.log',
} = opts;
if ((msg.sourceType === 'IP4' || msg.sourceType === 'IP6') && !whitelist.includes(msg.sourceInfo)) {
@ -41,6 +47,12 @@ const rateLimitPolicy: Policy<RateLimit> = async (msg, opts = {}) => {
await db.set(msg.sourceInfo, count + 1, interval);
if (count >= max) {
if (debugMode) {
const timestamp = new Date().toISOString();
const logMessage = `${timestamp}: IP ${msg.sourceInfo} rejected, ${count} attempts\n`;
await Deno.writeTextFile(debugLogPath, logMessage, { append: true });
//Deno.writeTextFileSync(debugLogPath, logMessage, { append: true });
}
return {
id: msg.event.id,
action: 'reject',
@ -57,5 +69,4 @@ const rateLimitPolicy: Policy<RateLimit> = async (msg, opts = {}) => {
};
export default rateLimitPolicy;
export type { RateLimit };