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rbac authorizer: include verb in non-resource url requests

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This commit is contained in:
Eric Chiang 2016-06-30 11:53:15 -07:00
parent 4726b521d1
commit 411922f66c
4 changed files with 60 additions and 8 deletions
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6
pkg/apis/rbac/validation/policy_comparator.go
View File

@ -69,9 +69,11 @@ func breakdownRule(rule rbac.PolicyRule) []rbac.PolicyRule {
}
}
// Non-resource URLs are unique because they don't combine with other policy rule fields.
// Non-resource URLs are unique because they only combine with verbs.
for _, nonResourceURL := range rule.NonResourceURLs {
subrules = append(subrules, rbac.PolicyRule{NonResourceURLs: []string{nonResourceURL}})
for _, verb := range rule.Verbs {
subrules = append(subrules, rbac.PolicyRule{NonResourceURLs: []string{nonResourceURL}, Verbs: []string{verb}})
}
}
return subrules

2
pkg/apis/rbac/validation/policy_comparator_test.go
View File

@ -333,7 +333,7 @@ func TestCoversNonResourceURLsWithOtherFieldsFailure(t *testing.T) {
},
expectedCovered: false,
expectedUncoveredRules: []rbac.PolicyRule{{NonResourceURLs: []string{"/apis"}}},
expectedUncoveredRules: []rbac.PolicyRule{{NonResourceURLs: []string{"/apis"}, Verbs: []string{"get"}}},
}.test(t)
}

1
plugin/pkg/auth/authorizer/rbac/rbac.go
View File

@ -58,6 +58,7 @@ func (r *RBACAuthorizer) Authorize(attr authorizer.Attributes) error {
}
} else {
requestedRule = rbac.PolicyRule{
Verbs: []string{attr.GetVerb()},
NonResourceURLs: []string{attr.GetPath()},
}
}

59
plugin/pkg/auth/authorizer/rbac/rbac_test.go
View File

@ -25,13 +25,15 @@ import (
"k8s.io/kubernetes/pkg/apis/rbac"
"k8s.io/kubernetes/pkg/apis/rbac/validation"
"k8s.io/kubernetes/pkg/auth/authorizer"
"k8s.io/kubernetes/pkg/auth/user"
)
func newRule(verbs, apiGroups, resources string) rbac.PolicyRule {
func newRule(verbs, apiGroups, resources, nonResourceURLs string) rbac.PolicyRule {
return rbac.PolicyRule{
Verbs: strings.Split(verbs, ","),
APIGroups: strings.Split(apiGroups, ","),
Resources: strings.Split(resources, ","),
Verbs: strings.Split(verbs, ","),
APIGroups: strings.Split(apiGroups, ","),
Resources: strings.Split(resources, ","),
NonResourceURLs: strings.Split(nonResourceURLs, ","),
}
}
@ -48,6 +50,23 @@ const (
bindToClusterRole uint16 = 0x1
)
func newClusterRoleBinding(roleName string, subjects ...string) rbac.ClusterRoleBinding {
r := rbac.ClusterRoleBinding{
ObjectMeta: api.ObjectMeta{},
RoleRef: api.ObjectReference{
Kind: "ClusterRole", // ClusterRoleBindings can only refer to ClusterRole
Name: roleName,
},
}
r.Subjects = make([]rbac.Subject, len(subjects))
for i, subject := range subjects {
split := strings.SplitN(subject, ":", 2)
r.Subjects[i].Kind, r.Subjects[i].Name = split[0], split[1]
}
return r
}
func newRoleBinding(namespace, roleName string, bindType uint16, subjects ...string) rbac.RoleBinding {
r := rbac.RoleBinding{ObjectMeta: api.ObjectMeta{Namespace: namespace}}
@ -107,7 +126,7 @@ func TestAuthorizer(t *testing.T) {
}{
{
clusterRoles: []rbac.ClusterRole{
newClusterRole("admin", newRule("*", "*", "*")),
newClusterRole("admin", newRule("*", "*", "*", "*")),
},
roleBindings: []rbac.RoleBinding{
newRoleBinding("ns1", "admin", bindToClusterRole, "User:admin", "Group:admins"),
@ -126,6 +145,36 @@ func TestAuthorizer(t *testing.T) {
&defaultAttributes{"admin", "admins", "GET", "Nodes", "", ""},
},
},
{
// Non-resource-url tests
clusterRoles: []rbac.ClusterRole{
newClusterRole("non-resource-url-getter", newRule("get", "", "", "/apis")),
newClusterRole("non-resource-url", newRule("*", "", "", "/apis")),
},
clusterRoleBindings: []rbac.ClusterRoleBinding{
newClusterRoleBinding("non-resource-url-getter", "User:foo", "Group:bar"),
newClusterRoleBinding("non-resource-url", "User:admin", "Group:admin"),
},
shouldPass: []authorizer.Attributes{
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "foo"}, Verb: "get", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"bar"}}, Verb: "get", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "admin"}, Verb: "get", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"admin"}}, Verb: "get", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "admin"}, Verb: "watch", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"admin"}}, Verb: "watch", Path: "/apis"},
},
shouldFail: []authorizer.Attributes{
// wrong verb
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "foo"}, Verb: "watch", Path: "/apis"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"bar"}}, Verb: "watch", Path: "/apis"},
// wrong path
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "foo"}, Verb: "get", Path: "/api/v1"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"bar"}}, Verb: "get", Path: "/api/v1"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "admin"}, Verb: "get", Path: "/api/v1"},
authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"admin"}}, Verb: "get", Path: "/api/v1"},
},
},
}
for i, tt := range tests {
ruleResolver := validation.NewTestRuleResolver(tt.roles, tt.roleBindings, tt.clusterRoles, tt.clusterRoleBindings)