CodeSampleX

示例

pac-proxy-agent 7.2.0: PacProxyAgent

已验证示例 — npm pac-proxy-agent 7.2.0: PacProxyAgent. contract 在 node 22 · linux alpine/x64 · docker 上运行并通过： PacProxyAgent static protocols property includes…

sha256:f47ca650ab29bf31c0ffd56138a91ebe33c040abe069fbfb63e7084ce9ac4e4f

本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。 提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。 MIT-0

执行证据

声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。

证据依据
签名契约通过
验证回执
1
构建过它的签名密钥
1
声明的环境 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

验证运行环境

环境 契约 阶段 运行日期
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…		 2026-08-26

案例

HOW
目标
verify PacProxyAgent in pkg:npm/pac-proxy-agent@7.2.0
包
符号
  • PacProxyAgent
环境
node 22.23.2
创建时间
2026-08-26T01:03:36Z

契约

  1. PacProxyAgent static protocols property includes supported PAC protocol schemes
  2. PacProxyAgent constructor initializes agent instance with data URI string
  3. getResolver compiles and returns a FindProxyForURL resolver function
  4. resolver routes plain hostnames to DIRECT when configured by PAC script
  5. resolver evaluates dnsDomainIs and returns designated internal proxy
  6. resolver evaluates shExpMatch wildcard and returns designated secure proxy
  7. resolver returns fallback proxy chain for unmatched external destinations
  8. PacProxyAgent constructor accepts WHATWG URL instance and custom options

文件

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

下载源代码构件 (tar.gz)

源代码

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 PacProxyAgent in pkg:npm/pac-proxy-agent@7.2.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/pac-proxy-agent@7.2.0
Demonstrate these symbols/APIs:
  - PacProxyAgent
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: cjs
  - packageManager: npm@10.9.8
  - runtime: node@22.23.2

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:bf34780ba638aa95212ca0ae1192cff4ecca8ccf96b11aefb68830087c41fc8d","constraints":{"executionContext":"node"},"contract":["PacProxyAgent static protocols property includes supported PAC protocol schemes","PacProxyAgent constructor initializes agent instance with data URI string","getResolver compiles and returns a FindProxyForURL resolver function","resolver routes plain hostnames to DIRECT when configured by PAC script","resolver evaluates dnsDomainIs and returns designated internal proxy","resolver evaluates shExpMatch wildcard and returns designated secure proxy","resolver returns fallback proxy chain for unmatched external destinations","PacProxyAgent constructor accepts WHATWG URL instance and custom options"],"goal":"verify PacProxyAgent in pkg:npm/pac-proxy-agent@7.2.0","kind":"HOW","packages":["pkg:npm/pac-proxy-agent@7.2.0"],"schemaVersion":1,"symbols":["PacProxyAgent"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"cjs","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/pac-proxy-agent@7.2.0"],"schemaVersion":1,"subject":"pkg:npm/pac-proxy-agent@7.2.0","symbols":["PacProxyAgent"],"verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "sample-pac-proxy-agent",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-pac-proxy-agent",
      "version": "1.0.0",
      "dependencies": {
        "pac-proxy-agent": "7.2.0"
      }
    },
    "node_modules/@tootallnate/quickjs-emscripten": {
      "version": "0.23.0",
      "resolved": "https://registry.npmjs.org/@tootallnate/quickjs-emscripten/-/quickjs-emscripten-0.23.0.tgz",
      "integrity": "sha512-C5Mc6rdnsaJDjO3UpGW/CQTHtCKaYlScZTly4JIu97Jxo/odCiH0ITnDXSJPTOrEKk/ycSZ0AOgTmkDtkOsvIA==",
      "license": "MIT"
    },
    "node_modules/agent-base": {
      "version": "7.1.4",
      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-7.1.4.tgz",
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    },
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        "agent-base": "^7.1.2",
        "debug": "4"
      },
      "engines": {
        "node": ">= 14"
      }
    },
    "node_modules/ip-address": {
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      "license": "MIT",
      "engines": {
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      }
    },
    "node_modules/pac-proxy-agent": {
      "version": "7.2.0",
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      "license": "MIT",
      "dependencies": {
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        "agent-base": "^7.1.2",
        "debug": "^4.3.4",
        "get-uri": "^6.0.1",
        "http-proxy-agent": "^7.0.0",
        "https-proxy-agent": "^7.0.6",
        "pac-resolver": "^7.0.1",
        "socks-proxy-agent": "^8.0.5"
      },
      "engines": {
        "node": ">= 14"
      }
    },
    "node_modules/pac-resolver": {
      "version": "7.0.1",
      "resolved": "https://registry.npmjs.org/pac-resolver/-/pac-resolver-7.0.1.tgz",
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        "netmask": "^2.0.2"
      },
      "engines": {
        "node": ">= 14"
      }
    },
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      "resolved": "https://registry.npmjs.org/smart-buffer/-/smart-buffer-4.2.0.tgz",
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      "license": "MIT",
      "engines": {
        "node": ">= 6.0.0",
        "npm": ">= 3.0.0"
      }
    },
    "node_modules/socks": {
      "version": "2.8.9",
      "resolved": "https://registry.npmjs.org/socks/-/socks-2.8.9.tgz",
      "integrity": "sha512-LJhUYUvItdQ0LkJTmPeaEObWXAqFyfmP85x0tch/ez9cahmhlBBLbIqDFnvBnUJGagb0JbIQrkBs1wJ+yRYpEw==",
      "license": "MIT",
      "dependencies": {
        "ip-address": "^10.1.1",
        "smart-buffer": "^4.2.0"
      },
      "engines": {
        "node": ">= 10.0.0",
        "npm": ">= 3.0.0"
      }
    },
    "node_modules/socks-proxy-agent": {
      "version": "8.0.5",
      "resolved": "https://registry.npmjs.org/socks-proxy-agent/-/socks-proxy-agent-8.0.5.tgz",
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      "license": "MIT",
      "dependencies": {
        "agent-base": "^7.1.2",
        "debug": "^4.3.4",
        "socks": "^2.8.3"
      },
      "engines": {
        "node": ">= 14"
      }
    },
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      "license": "BSD-3-Clause",
      "optional": true,
      "engines": {
        "node": ">=0.10.0"
      }
    },
    "node_modules/tslib": {
      "version": "2.8.1",
      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
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      "license": "0BSD"
    }
  }
}
package.json
{
  "name": "sample-pac-proxy-agent",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "pac-proxy-agent": "7.2.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify PacProxyAgent in pkg:npm/pac-proxy-agent@7.2.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/pac-proxy-agent@7.2.0"
  ],
  "symbols": [
    "PacProxyAgent"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
test/contract.mjs
import assert from 'node:assert/strict';
import { PacProxyAgent } from 'pac-proxy-agent';

// 1. PacProxyAgent static protocols property includes supported PAC protocol schemes
assert.ok(Array.isArray(PacProxyAgent.protocols));
assert.ok(PacProxyAgent.protocols.includes('pac+data'));
assert.ok(PacProxyAgent.protocols.includes('pac+file'));
assert.ok(PacProxyAgent.protocols.includes('pac+http'));
assert.ok(PacProxyAgent.protocols.includes('pac+https'));

// 2. PacProxyAgent constructor initializes agent instance with data URI string
const pacScript = `
  function FindProxyForURL(url, host) {
    if (isPlainHostName(host)) {
      return 'DIRECT';
    }
    if (dnsDomainIs(host, '.internal.example.com')) {
      return 'PROXY proxy-int.example.com:8080';
    }
    if (shExpMatch(host, '*.secure.example.com')) {
      return 'HTTPS proxy-sec.example.com:8443';
    }
    return 'PROXY proxy-default.example.com:3128; DIRECT';
  }
`;
const dataUri = `data:text/plain;charset=utf-8,${encodeURIComponent(pacScript)}`;
const agent = new PacProxyAgent(dataUri);

assert.ok(agent instanceof PacProxyAgent);
assert.equal(agent.uri.href, dataUri);

// 3. getResolver compiles and returns a FindProxyForURL resolver function
const resolver = await agent.getResolver();
assert.equal(typeof resolver, 'function');

// 4. resolver routes plain hostnames to DIRECT when configured by PAC script
const resPlain = await resolver('http://localhost/api', 'localhost');
assert.equal(resPlain, 'DIRECT');

// 5. resolver evaluates dnsDomainIs and returns designated internal proxy
const resInternal = await resolver('http://svc.internal.example.com/data', 'svc.internal.example.com');
assert.equal(resInternal, 'PROXY proxy-int.example.com:8080');

// 6. resolver evaluates shExpMatch wildcard and returns designated secure proxy
const resSecure = await resolver('https://auth.secure.example.com/login', 'auth.secure.example.com');
assert.equal(resSecure, 'HTTPS proxy-sec.example.com:8443');

// 7. resolver returns fallback proxy chain for unmatched external destinations
const resDefault = await resolver('http://external.example.com/resource', 'external.example.com');
assert.equal(resDefault, 'PROXY proxy-default.example.com:3128; DIRECT');

// 8. PacProxyAgent constructor accepts WHATWG URL instance and custom options
const pacUrl = new URL(dataUri);
const agentWithOptions = new PacProxyAgent(pacUrl, {
  fallbackToDirect: true,
  keepAlive: true
});
assert.ok(agentWithOptions instanceof PacProxyAgent);
assert.equal(agentWithOptions.opts.fallbackToDirect, true);
assert.equal(agentWithOptions.opts.keepAlive, true);

const resolverWithOptions = await agentWithOptions.getResolver();
const resWithOptions = await resolverWithOptions('http://internal.example.com', 'internal.example.com');
assert.equal(typeof resWithOptions, 'string');

原始种子者

匿名