func ConfirmNoEscalation(ctx kapi.Context, ruleResolver AuthorizationRuleResolver, role authorizationinterfaces.Role) error {
ruleResolutionErrors := []error{}
ownerLocalRules, err := ruleResolver.GetEffectivePolicyRules(ctx)
if err != nil {
// do not fail in this case. Rules are purely additive, so we can continue with a coverage check based on the rules we have
user, _ := kapi.UserFrom(ctx)
glog.V(1).Infof("non-fatal error getting local rules for %v: %v", user, err)
ruleResolutionErrors = append(ruleResolutionErrors, err)
}
masterContext := kapi.WithNamespace(ctx, "")
ownerGlobalRules, err := ruleResolver.GetEffectivePolicyRules(masterContext)
if err != nil {
// do not fail in this case. Rules are purely additive, so we can continue with a coverage check based on the rules we have
user, _ := kapi.UserFrom(ctx)
glog.V(1).Infof("non-fatal error getting global rules for %v: %v", user, err)
ruleResolutionErrors = append(ruleResolutionErrors, err)
}
ownerRules := make([]authorizationapi.PolicyRule, 0, len(ownerGlobalRules)+len(ownerLocalRules))
ownerRules = append(ownerRules, ownerLocalRules...)
ownerRules = append(ownerRules, ownerGlobalRules...)
ownerRightsCover, missingRights := Covers(ownerRules, role.Rules())
if !ownerRightsCover {
user, _ := kapi.UserFrom(ctx)
return kapierrors.NewUnauthorized(fmt.Sprintf("attempt to grant extra privileges: %v user=%v ownerrules=%v ruleResolutionErrors=%v", missingRights, user, ownerRules, ruleResolutionErrors))
}
return nil
}
func ConfirmNoEscalation(ctx kapi.Context, resource unversioned.GroupResource, name string, ruleResolver, cachedRuleResolver AuthorizationRuleResolver, role authorizationinterfaces.Role) error {
var ruleResolutionErrors []error
user, ok := kapi.UserFrom(ctx)
if !ok {
return kapierrors.NewForbidden(resource, name, fmt.Errorf("no user provided in context"))
}
namespace, _ := kapi.NamespaceFrom(ctx)
// if a cached resolver is provided, attempt to verify coverage against the cache, then fall back to the normal
// path otherwise
if cachedRuleResolver != nil {
if ownerRules, err := cachedRuleResolver.RulesFor(user, namespace); err == nil {
if ownerRightsCover, _ := Covers(ownerRules, role.Rules()); ownerRightsCover {
return nil
}
}
}
ownerRules, err := ruleResolver.RulesFor(user, namespace)
if err != nil {
// do not fail in this case. Rules are purely additive, so we can continue with a coverage check based on the rules we have
glog.V(1).Infof("non-fatal error getting rules for %v: %v", user, err)
ruleResolutionErrors = append(ruleResolutionErrors, err)
}
ownerRightsCover, missingRights := Covers(ownerRules, role.Rules())
if ownerRightsCover {
return nil
}
// determine what resources the user is missing
if compactedMissingRights, err := CompactRules(missingRights); err == nil {
missingRights = compactedMissingRights
}
missingRightsStrings := make([]string, 0, len(missingRights))
for _, missingRight := range missingRights {
missingRightsStrings = append(missingRightsStrings, missingRight.CompactString())
}
sort.Strings(missingRightsStrings)
var internalErr error
if len(ruleResolutionErrors) > 0 {
internalErr = fmt.Errorf("user %q cannot grant extra privileges:\n%v\nrule resolution errors: %v)", user.GetName(), strings.Join(missingRightsStrings, "\n"), ruleResolutionErrors)
} else {
internalErr = fmt.Errorf("user %q cannot grant extra privileges:\n%v", user.GetName(), strings.Join(missingRightsStrings, "\n"))
}
return kapierrors.NewForbidden(resource, name, internalErr)
}
func ConfirmNoEscalation(ctx kapi.Context, resource unversioned.GroupResource, name string, ruleResolver AuthorizationRuleResolver, role authorizationinterfaces.Role) error {
ruleResolutionErrors := []error{}
ownerLocalRules, err := ruleResolver.GetEffectivePolicyRules(ctx)
if err != nil {
// do not fail in this case. Rules are purely additive, so we can continue with a coverage check based on the rules we have
user, _ := kapi.UserFrom(ctx)
glog.V(1).Infof("non-fatal error getting local rules for %v: %v", user, err)
ruleResolutionErrors = append(ruleResolutionErrors, err)
}
masterContext := kapi.WithNamespace(ctx, "")
ownerGlobalRules, err := ruleResolver.GetEffectivePolicyRules(masterContext)
if err != nil {
// do not fail in this case. Rules are purely additive, so we can continue with a coverage check based on the rules we have
user, _ := kapi.UserFrom(ctx)
glog.V(1).Infof("non-fatal error getting global rules for %v: %v", user, err)
ruleResolutionErrors = append(ruleResolutionErrors, err)
}
ownerRules := make([]authorizationapi.PolicyRule, 0, len(ownerGlobalRules)+len(ownerLocalRules))
ownerRules = append(ownerRules, ownerLocalRules...)
ownerRules = append(ownerRules, ownerGlobalRules...)
ownerRightsCover, missingRights := Covers(ownerRules, role.Rules())
if !ownerRightsCover {
if compactedMissingRights, err := CompactRules(missingRights); err == nil {
missingRights = compactedMissingRights
}
missingRightsStrings := make([]string, 0, len(missingRights))
for _, missingRight := range missingRights {
missingRightsStrings = append(missingRightsStrings, missingRight.CompactString())
}
sort.Strings(missingRightsStrings)
user, _ := kapi.UserFrom(ctx)
var internalErr error
if len(ruleResolutionErrors) > 0 {
internalErr = fmt.Errorf("user %q cannot grant extra privileges:\n%v\nrule resolution errors: %v)", user.GetName(), strings.Join(missingRightsStrings, "\n"), ruleResolutionErrors)
} else {
internalErr = fmt.Errorf("user %q cannot grant extra privileges:\n%v", user.GetName(), strings.Join(missingRightsStrings, "\n"))
}
return kapierrors.NewForbidden(resource, name, internalErr)
}
return nil
}