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샘플

proxy-agent 6.5.0: ProxyAgent

검증된 샘플 — npm proxy-agent 6.5.0: ProxyAgent. node 22 · linux alpine/x64 · docker에서 contract를 실행해 통과했습니다: ProxyAgent class export and proxies protocol map

sha256:80955dbb51409199ea7bd68302fd48aefe43a3cf20f9236cff387ab1d1373f4d

이 네트워크가 제공하는 것은 하나입니다. 빌드되는 샘플. 샌드박스에서 돌리고 서명된 영수증을 보관합니다. 등급을 매기지 않고 무엇도 보증하지 않습니다 — 같은 코드가 당신 환경에서 빌드되는지는 측정한 적이 없습니다. 통과한 계약 영수증을 낸 서로 다른 서명 키의 수입니다. 하나면 작성자 혼자이고, 둘 이상이면 다른 사람도 빌드했다는 뜻입니다. 키는 스스로 만드는 것이고 뒤에 등록된 신원이 없으므로, 세는 것은 사람이 아니라 키입니다. MIT-0

실행 증거

선언된 환경과 서명된 실행을 분리해 두었습니다. 이 샘플이 무엇을 어디서 실행했는지 그대로 볼 수 있습니다.

증거 기준
서명된 컨트랙트 통과
검증 영수증
1
빌드한 서명 키
1
선언된 환경 linux 24 · ubuntu · glibc 2.39 x64 npm

검증 실행 환경

환경 컨트랙트 단계 실행일
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…		 2026-08-27

케이스

HOW
목표
verify proxy-agent.ProxyAgent in pkg:npm/proxy-agent@6.5.0
패키지
심벌
  • proxy-agent.ProxyAgent
생성일
2026-08-27T11:23:33Z

컨트랙트

  1. ProxyAgent class export and proxies protocol map
  2. ProxyAgent constructor default configuration
  3. connect returns default httpAgent and httpsAgent when no proxy is configured
  4. connect resolves and caches HttpProxyAgent for HTTP proxy
  5. caching reuses the agent instance for identical protocol and proxy destination
  6. connect resolves HttpsProxyAgent for secure endpoint via HTTP proxy
  7. connect resolves SocksProxyAgent for SOCKS5 proxy URL
  8. connect resolves PacProxyAgent for PAC data URI
  9. connect throws on unsupported proxy protocol
  10. destroy cleans up and invokes destroy on cached agents

파일

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

소스 아티팩트 내려받기 (tar.gz)

소스

PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify proxy-agent.ProxyAgent in pkg:npm/proxy-agent@6.5.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/proxy-agent@6.5.0
Demonstrate these symbols/APIs:
  - proxy-agent.ProxyAgent

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:8e5ce4c7ac862889c23527e299474f3b4c39378d18198e658458045ed53e44ff","contract":["ProxyAgent class export and proxies protocol map","ProxyAgent constructor default configuration","connect returns default httpAgent and httpsAgent when no proxy is configured","connect resolves and caches HttpProxyAgent for HTTP proxy","caching reuses the agent instance for identical protocol and proxy destination","connect resolves HttpsProxyAgent for secure endpoint via HTTP proxy","connect resolves SocksProxyAgent for SOCKS5 proxy URL","connect resolves PacProxyAgent for PAC data URI","connect throws on unsupported proxy protocol","destroy cleans up and invokes destroy on cached agents"],"goal":"verify proxy-agent.ProxyAgent in pkg:npm/proxy-agent@6.5.0","kind":"HOW","packages":["pkg:npm/proxy-agent@6.5.0"],"schemaVersion":1,"symbols":["proxy-agent.ProxyAgent"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/proxy-agent@6.5.0"],"schemaVersion":1,"subject":"pkg:npm/proxy-agent@6.5.0","symbols":["proxy-agent.ProxyAgent"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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    },
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      "engines": {
        "node": ">= 14"
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    "node_modules/proxy-agent": {
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      "license": "BSD-3-Clause",
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      "license": "0BSD"
    }
  }
}
package.json
{
  "name": "sample-proxy-agent",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "proxy-agent": "6.5.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify proxy-agent.ProxyAgent in pkg:npm/proxy-agent@6.5.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/proxy-agent@6.5.0"
  ],
  "symbols": [
    "proxy-agent.ProxyAgent"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import http from 'node:http';
import https from 'node:https';
import { ProxyAgent, proxies } from 'proxy-agent';

// 1. Verify ProxyAgent class export and proxies protocol map
assert.equal(typeof ProxyAgent, 'function');
assert.equal(typeof proxies, 'object');
assert.ok(Array.isArray(proxies.http));
assert.ok(Array.isArray(proxies.https));
assert.ok(Array.isArray(proxies.socks));
assert.ok(Array.isArray(proxies.socks5));
assert.ok(Array.isArray(proxies['pac+data']));

// 2. Verify ProxyAgent constructor default configuration
const defaultAgent = new ProxyAgent();
assert.ok(defaultAgent instanceof ProxyAgent);
assert.ok(defaultAgent.httpAgent instanceof http.Agent);
assert.ok(defaultAgent.httpsAgent instanceof https.Agent);
assert.equal(typeof defaultAgent.getProxyForUrl, 'function');
assert.equal(defaultAgent.cache.size, 0);

// Helper to create mock ClientRequest without opening real sockets
function createMockRequest(host, path = '/', headers = {}) {
  const headerMap = new Map(Object.entries(headers).map(([k, v]) => [k.toLowerCase(), v]));
  headerMap.set('host', host);
  return {
    path,
    getHeader(name) {
      return headerMap.get(name.toLowerCase());
    }
  };
}

// 3. Verify connect returns default httpAgent and httpsAgent when no proxy is configured
const directAgent = new ProxyAgent({
  getProxyForUrl: () => ''
});
const reqHttp = createMockRequest('example.com', '/test');
const resolvedHttp = await directAgent.connect(reqHttp, { secureEndpoint: false });
assert.equal(resolvedHttp, directAgent.httpAgent);

const reqHttps = createMockRequest('example.com', '/secure');
const resolvedHttps = await directAgent.connect(reqHttps, { secureEndpoint: true });
assert.equal(resolvedHttps, directAgent.httpsAgent);

// 4. Verify connect resolves and caches HttpProxyAgent for HTTP proxy
const customAgent = new ProxyAgent({
  getProxyForUrl: (url) => {
    if (url.includes('proxy.example.com')) {
      return 'http://127.0.0.1:8080';
    }
    return '';
  }
});
const reqProxied = createMockRequest('proxy.example.com', '/api');
const resolvedHttpProxy = await customAgent.connect(reqProxied, { secureEndpoint: false });
assert.equal(resolvedHttpProxy.constructor.name, 'HttpProxyAgent');
assert.equal(customAgent.cache.size, 1);

// 5. Verify caching reuses the agent instance for identical protocol and proxy destination
const resolvedAgain = await customAgent.connect(reqProxied, { secureEndpoint: false });
assert.equal(resolvedAgain, resolvedHttpProxy);
assert.equal(customAgent.cache.size, 1);

// 6. Verify connect resolves HttpsProxyAgent for secure endpoint via HTTP proxy
const reqSecureProxied = createMockRequest('proxy.example.com', '/secure-api');
const resolvedHttpsProxy = await customAgent.connect(reqSecureProxied, { secureEndpoint: true });
assert.equal(resolvedHttpsProxy.constructor.name, 'HttpsProxyAgent');
assert.equal(customAgent.cache.size, 2);

// 7. Verify connect resolves SocksProxyAgent for SOCKS5 proxy URL
const socksAgent = new ProxyAgent({
  getProxyForUrl: () => 'socks5://127.0.0.1:1080'
});
const reqSocks = createMockRequest('socks.example.com', '/data');
const resolvedSocks = await socksAgent.connect(reqSocks, { secureEndpoint: false });
assert.equal(resolvedSocks.constructor.name, 'SocksProxyAgent');

// 8. Verify connect resolves PacProxyAgent for PAC data URI
const pacScript = 'function FindProxyForURL(url, host) { return "DIRECT"; }';
const pacDataUri = `pac+data:text/plain;charset=utf-8,${encodeURIComponent(pacScript)}`;
const pacAgent = new ProxyAgent({
  getProxyForUrl: () => pacDataUri
});
const reqPac = createMockRequest('pac.example.com', '/resource');
const resolvedPac = await pacAgent.connect(reqPac, { secureEndpoint: false });
assert.equal(resolvedPac.constructor.name, 'PacProxyAgent');

// 9. Verify connect throws on unsupported proxy protocol
const invalidProtoAgent = new ProxyAgent({
  getProxyForUrl: () => 'ftp://127.0.0.1:21'
});
const reqInvalid = createMockRequest('invalid.example.com', '/');
await assert.rejects(
  async () => {
    await invalidProtoAgent.connect(reqInvalid, { secureEndpoint: false });
  },
  {
    name: 'Error',
    message: /Unsupported protocol for proxy URL: ftp:\/\/127\.0\.0\.1:21/
  }
);

// 10. Verify destroy cleans up and invokes destroy on cached agents
let destroyedCalled = false;
resolvedHttpProxy.destroy = () => {
  destroyedCalled = true;
};
customAgent.destroy();
assert.equal(destroyedCalled, true);

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