// subjectMatches returns true if specified user and group properties in the policy match the attributes
func subjectMatches(p api.Policy, a authorizer.Attributes) bool {
matched := false
// If the policy specified a user, ensure it matches
if len(p.Spec.User) > 0 {
if p.Spec.User == "*" {
matched = true
} else {
matched = p.Spec.User == a.GetUserName()
if !matched {
return false
}
}
}
// If the policy specified a group, ensure it matches
if len(p.Spec.Group) > 0 {
if p.Spec.Group == "*" {
matched = true
} else {
matched = false
for _, group := range a.GetGroups() {
if p.Spec.Group == group {
matched = true
}
}
if !matched {
return false
}
}
}
return matched
}
func verbMatches(p api.Policy, a authorizer.Attributes) bool {
// TODO: match on verb
// All policies allow read only requests
if a.IsReadOnly() {
return true
}
// Allow if policy is not readonly
if !p.Spec.Readonly {
return true
}
return false
}
func resourceMatches(p api.Policy, a authorizer.Attributes) bool {
// A resource policy cannot match a non-resource request
if a.IsResourceRequest() {
if p.Spec.Namespace == "*" || p.Spec.Namespace == a.GetNamespace() {
if p.Spec.Resource == "*" || p.Spec.Resource == a.GetResource() {
if p.Spec.APIGroup == "*" || p.Spec.APIGroup == a.GetAPIGroup() {
return true
}
}
}
}
return false
}
func nonResourceMatches(p api.Policy, a authorizer.Attributes) bool {
// A non-resource policy cannot match a resource request
if !a.IsResourceRequest() {
// Allow wildcard match
if p.Spec.NonResourcePath == "*" {
return true
}
// Allow exact match
if p.Spec.NonResourcePath == a.GetPath() {
return true
}
// Allow a trailing * subpath match
if strings.HasSuffix(p.Spec.NonResourcePath, "*") && strings.HasPrefix(a.GetPath(), strings.TrimRight(p.Spec.NonResourcePath, "*")) {
return true
}
}
return false
}
