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chore(ci): replace vuln-gate's four hand-dispatched ecosystem sites with a PARSERS registry (#634) - #693
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…ith a PARSERS registry vuln-gate.mjs named "npm" and "nuget" by hand in four places that had to move together: the ECOSYSTEMS set, reportProblem's if/else, main's arg check, and the parser pick. The last was a two-way ternary with no third branch, so an ecosystem that cleared the arg check but was not wired into the ternary was parsed as NuGet: wrong findings, green gate. One frozen PARSERS registry now maps ecosystem to its parse and reportProblem functions. The exception-scope set, both usage strings, the arg check, the shape check and the parser pick all derive from its keys. "any" stays an exception scope without being a parseable ecosystem. registryProblem names a half-wired entry, is asserted at module load, and resolveParser refuses both a half-wired entry and an unknown name instead of defaulting. Every previously exported function stays exported with the same signature; reportProblem now returns a problem for an ecosystem it cannot check where it used to return null. Tests: 39 pass. Mutations, each dying on the test that names it: the parser pick falling through to nuget, registryProblem always null, reportProblem ignoring an unresolvable ecosystem, and nuget dropped from the registry.
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Included review availability: Your plan provides up to 8 included reviews per hour; 5 remain after this review. 📝 WalkthroughWalkthroughThe vulnerability gate now uses a validated ChangesVulnerability Gate Parser Registry
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: ⚪ Minimal · up to The vulnerability gate now derives supported ecosystem handling from a validated parser registry while preserving npm and NuGet operation and failing closed for invalid ecosystems. No current merge-blocking risk is identified. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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In @.github/scripts/vuln-gate.mjs:
- Line 74: Update resolveParser to verify that name is an own property of
registry before reading registry[name], so inherited names such as constructor
are rejected and follow the existing invalid-ecosystem/CLI usage error path.
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.github/scripts/vuln-gate.mjs.github/scripts/vuln-gate.test.mjs
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registry["constructor"] is the inherited Object function, truthy, so a lookup by index passed it through and the gate crashed on .reportProblem instead of printing the usage error. Own-property check; the test walks constructor, toString, __proto__ and hasOwnProperty.
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Closes #634.
What
.github/scripts/vuln-gate.mjshand-dispatched on ecosystem in four places: theECOSYSTEMSset,reportProblem's if/else,main()'s arg check, and the parser pick. The parser pick was a two-way ternary, so an ecosystem that cleared the arg check but was not wired into the ternary was silently parsed as NuGet.One frozen
PARSERSregistry now maps ecosystem →{ parse, reportProblem }. Everything else derives from its keys:ECOSYSTEMS= registry keys +"any"."any"stays an exception scope and is never parseable, as the issue requires.exceptionProblemmessage list the names from the registry.main()picks the parser throughresolveParser, which refuses an unknown name and a half-wired entry rather than defaulting.registryProblemis asserted at module load, so a broken registry cannot run at all.Every exported function stays exported with the same signature. One behaviour change, in the fail-closed direction:
reportProblem(report, "pypi")returns a problem where it used to returnnull.Guard, mutation first
The issue asks for a test that a registry entry with no parser makes the gate refuse to run, and says "npm and nuget still work" is insufficient because it passes with the bug present. Four mutants, each killed by the test that names it:
resolveParserfalls through toregistry.nugetreportProblemunresolvable, CLI unknown--ecosystemregistryProblemalways returnsnullreportProblemreturnsnullon an unresolvable ecosystemreportProblemunresolvablenugetremoved fromPARSERSBaseline: 39 pass, 0 fail. The four previously hand-written sites no longer name an ecosystem (
grep -E '=== *"(npm|nuget)"'returns nothing).Real-input smoke
dotnet list package --vulnerable ... | vuln-gate --ecosystem nuget --level high: clean, exit 0.npm audit --json --omit=dev | vuln-gate --ecosystem npm: on this dev boxnpm audititself errors (a local--allow-scriptsconfig), and the gate refuses the error payload with exit 2. The script onmaindoes exactly the same on the same input, so that is the fix(ci): the advisory-only vuln gate blocks CI when npm's advisory endpoint is down, despite documenting that it never blocks #686 fail-closed posture, not a change. CI's npm run is the real check.--emit-allowlist: unchanged.Out of scope, per the issue: the
gate()-level--levelresidual from #529. Not epic-tracked, per the issue.Summary by CodeRabbit
Bug Fixes
Tests