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Viewing file:     S3ExpressIdentityCache.js (1.05 KB)      -rw-r--r--

export class S3ExpressIdentityCache {
    constructor(data = {}) {
        this.data = data;
        this.lastPurgeTime = Date.now();
    }
    get(key) {
        const entry = this.data[key];
        if (!entry) {
            return;
        }
        return entry;
    }
    set(key, entry) {
        this.data[key] = entry;
        return entry;
    }
    delete(key) {
        delete this.data[key];
    }
    async purgeExpired() {
        const now = Date.now();
        if (this.lastPurgeTime + S3ExpressIdentityCache.EXPIRED_CREDENTIAL_PURGE_INTERVAL_MS > now) {
            return;
        }
        for (const key in this.data) {
            const entry = this.data[key];
            if (!entry.isRefreshing) {
                const credential = await entry.identity;
                if (credential.expiration) {
                    if (credential.expiration.getTime() < now) {
                        delete this.data[key];
                    }
                }
            }
        }
    }
}
S3ExpressIdentityCache.EXPIRED_CREDENTIAL_PURGE_INTERVAL_MS = 30000;