CodeSampleX

Sample

verify proxy-addr.all in pkg:npm/proxy-addr@2.0.7

sha256:cf8e4187dd05a8391236cabe2ff0d8c077ae0771b3fb5418f299661a50e744c2

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 npm

Verification-run environments

Environment Contract Stages Run
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…
2026-08-23

Case

HOW
Goal
verify proxy-addr.all in pkg:npm/proxy-addr@2.0.7
Packages
Symbols
  • proxy-addr.all
Created
2026-08-23T04:25:34Z

Contract

  1. proxyaddr.all(req) returns all addresses from socket to client in reverse order when trust is omitted
  2. proxyaddr.all(req, trust) returns addresses up to first untrusted hop when trust predicate is provided
  3. proxyaddr.all(req, 'loopback') filters trusted loopback proxies and includes the client address
  4. proxyaddr.all(req, trustArray) supports array of CIDR subnets and built-in trust ranges
  5. proxyaddr.all(req, trustFn) passes address and hop index to custom trust predicate function
  6. proxyaddr.all(req, trust) returns single socket address when direct connection has no forwarded headers
  7. proxyaddr.all(req, trust) returns all addresses when entire proxy chain is trusted
  8. proxyaddr.all(req) supports req.connection fallback when req.socket is not present
  9. proxyaddr.all() throws TypeError when request argument is missing

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous