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Cache GitLab responses to avoid spamming the GitLab server #126
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dejan9393
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Original file line number | Diff line number | Diff line change |
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// Copyright 2018 Roger Meier <roger@bufferoverflow.ch> | ||
// SPDX-License-Identifier: MIT | ||
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import Crypto from 'crypto'; | ||
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import {Logger} from '@verdaccio/types'; | ||
import NodeCache from 'node-cache'; | ||
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export class GitlabCache { | ||
private logger: Logger; | ||
private ttl: number; | ||
private storage: NodeCache; | ||
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public static get DEFAULT_TTL() { | ||
return 300; | ||
} | ||
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private static _generateKeyHash(username: string, password: string) { | ||
const sha = Crypto.createHash('sha256'); | ||
sha.update(JSON.stringify({ username: username, password: password })); | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Tip: You can directly use |
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return sha.digest('hex'); | ||
} | ||
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public constructor(logger: Logger, ttl?: number) { | ||
this.logger = logger; | ||
this.ttl = ttl || GitlabCache.DEFAULT_TTL; | ||
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this.storage = new NodeCache({ | ||
stdTTL: this.ttl, | ||
useClones: false, | ||
}); | ||
this.storage.on('expired', (key, value) => { | ||
this.logger.trace(`[gitlab] expired key: ${key} with value:`, value); | ||
}); | ||
} | ||
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public getPromise(username: string, password: string, type: 'user' | 'groups' | 'projects'): Promise<any> { | ||
return this.storage.get(GitlabCache._generateKeyHash(`${username}_${type}_promise`, password)) as Promise<any>; | ||
} | ||
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public storePromise(username: string, password: string, type: 'user' | 'groups' | 'projects', promise: Promise<any>): boolean { | ||
return this.storage.set(GitlabCache._generateKeyHash(`${username}_${type}_promise`, password), promise); | ||
} | ||
} |
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Please excuse my question but why did you use a getter instead of
public readonly DEFAULT_TTL = 300;
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Because this was basically a quick hackjob, copied from authcache.ts.