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apiextensions: disallow additionalProperties at the root

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This commit is contained in:
Dr. Stefan Schimanski 2019-05-09 13:11:30 +02:00
parent 9581919eaf
commit c3996213e0
2 changed files with 16 additions and 2 deletions
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8
staging/src/k8s.io/apiextensions-apiserver/pkg/apiserver/schema/validation.go
View File

@ -55,6 +55,7 @@ const (
// - ... zero or more
//
// * every specified field or array in s is also specified outside of value validation.
// * additionalProperties at the root is not allowed.
func ValidateStructural(s *Structural, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
@ -76,7 +77,7 @@ func validateStructuralInvariants(s *Structural, lvl level, fldPath *field.Path)
for k, v := range s.Properties {
allErrs = append(allErrs, validateStructuralInvariants(&v, fieldLevel, fldPath.Child("properties").Key(k))...)
}
allErrs = append(allErrs, validateGeneric(&s.Generic, fldPath)...)
allErrs = append(allErrs, validateGeneric(&s.Generic, lvl, fldPath)...)
allErrs = append(allErrs, validateExtensions(&s.Extensions, fldPath)...)
// detect the two IntOrString exceptions:
@ -129,7 +130,7 @@ func validateStructuralInvariants(s *Structural, lvl level, fldPath *field.Path)
}
// validateGeneric checks the generic fields of a structural schema.
func validateGeneric(g *Generic, fldPath *field.Path) field.ErrorList {
func validateGeneric(g *Generic, lvl level, fldPath *field.Path) field.ErrorList {
if g == nil {
return nil
}
@ -137,6 +138,9 @@ func validateGeneric(g *Generic, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if g.AdditionalProperties != nil {
if lvl == rootLevel {
allErrs = append(allErrs, field.Forbidden(fldPath.Child("additionalProperties"), "must not be used at the root"))
}
if g.AdditionalProperties.Structural != nil {
allErrs = append(allErrs, validateStructuralInvariants(g.AdditionalProperties.Structural, fieldLevel, fldPath.Child("additionalProperties"))...)
}

10
staging/src/k8s.io/apiextensions-apiserver/test/integration/validation_test.go
View File

@ -1048,6 +1048,16 @@ properties:
"spec.validation.openAPIV3Schema.properties[c]",
},
},
{
desc: "forbidden additionalProperties at the root",
globalSchema: `
type: object
additionalProperties: false
`,
expectedViolations: []string{
"spec.validation.openAPIV3Schema.additionalProperties: Forbidden: must not be used at the root",
},
},
{
desc: "structural incomplete",
globalSchema: `