Prevent lowercasing npm names to support grandfathered packages (#19)

npm used to support package names containing capital characters: https://blog.npmjs.org/post/168978377570/new-package-moniker-rules.html Such packages still exist on the npm registry, like this one: https://www.npmjs.com/package/Acid/v/3.0.17
package-url · Oct 28, 2022 · 810a771 · 810a771
1 parent e93983a
commit 810a771
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Showing 2 changed files with 13 additions and 1 deletion.
diff --git a/src/PackageUrl.cs b/src/PackageUrl.cs
@@ -276,7 +276,7 @@ private string ValidateName(string name)
  }
  return Type switch
  {
- "nuget" or "cocoapods" or "cpan" or "vsm" or "cran" => name,
+ "nuget" or "cocoapods" or "cpan" or "vsm" or "cran" or "npm" => name,
  "pypi" => name.Replace('_', '-').ToLower(),
  _ => name.ToLower()
  };

diff --git a/tests/TestAssets/test-suite-data.json b/tests/TestAssets/test-suite-data.json
@@ -167,6 +167,18 @@
  "subpath": null,
  "is_invalid": false
  },
+ {
+ "description": "npm names are case sensitive (npm only requires lowercase names for new packages)",
+ "purl": "pkg:npm/Acid@3.0.17",
+ "canonical_purl": "pkg:npm/Acid@3.0.17",
+ "type": "npm",
+ "namespace": null,
+ "name": "Acid",
+ "version": "3.0.17",
+ "qualifiers": null,
+ "subpath": null,
+ "is_invalid": false
+ },
  {
  "description": "nuget names are case sensitive",
  "purl": "pkg:Nuget/EnterpriseLibrary.Common@6.0.1304",