copy RateLimiterService from MisskeyIO
This implementation allocates fewer Promises, might help with the memory leaks
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@ -32,18 +32,11 @@ export class RateLimiterService {
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@bindThis
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public limit(limitation: IEndpointMeta['limit'] & { key: NonNullable<string> }, actor: string, factor = 1) {
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{
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if (this.disabled) {
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return Promise.resolve();
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}
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// those lines with the "wrong" brace style / indentation are
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// done that way so that the *other* lines stay identical to
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// Misskey, simplifying merges
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return new Promise<void>((ok, reject) => {
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if (this.disabled) ok();
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// Short-term limit
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// eslint-disable-next-line brace-style
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const minP = () => { return new Promise<void>((ok, reject) => {
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const minP = (): void => {
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const minIntervalLimiter = new Limiter({
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id: `${actor}:${limitation.key}:min`,
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duration: limitation.minInterval! * factor,
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@ -62,18 +55,16 @@ export class RateLimiterService {
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return reject({ code: 'BRIEF_REQUEST_INTERVAL', info });
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} else {
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if (hasLongTermLimit) {
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return maxP().then(ok, reject);
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return maxP();
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} else {
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return ok();
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}
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}
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});
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// eslint-disable-next-line brace-style
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}); };
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};
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// Long term limit
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// eslint-disable-next-line brace-style
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const maxP = () => { return new Promise<void>((ok, reject) => {
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const maxP = (): void => {
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const limiter = new Limiter({
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id: `${actor}:${limitation.key}`,
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duration: limitation.duration! * factor,
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@ -94,8 +85,7 @@ export class RateLimiterService {
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return ok();
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}
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});
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// eslint-disable-next-line brace-style
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}); };
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};
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const hasShortTermLimit = typeof limitation.minInterval === 'number';
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@ -104,12 +94,12 @@ export class RateLimiterService {
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typeof limitation.max === 'number';
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if (hasShortTermLimit) {
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return minP();
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minP();
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} else if (hasLongTermLimit) {
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return maxP();
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maxP();
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} else {
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return Promise.resolve();
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}
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}
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ok();
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}
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});
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}
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}
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