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Copy pathconstraint_test.go
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336 lines (267 loc) · 7.56 KB
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package casbin
import (
"strings"
"testing"
"github.com/casbin/casbin/v3/errors"
"github.com/casbin/casbin/v3/model"
)
func TestConstraintSOD(t *testing.T) {
modelText := `
[request_definition]
r = sub, obj, act
[policy_definition]
p = sub, obj, act
[role_definition]
g = _, _
[constraint_definition]
c = sod("role1", "role2")
[policy_effect]
e = some(where (p.eft == allow))
[matchers]
m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act
`
m, err := model.NewModelFromString(modelText)
if err != nil {
t.Fatalf("Failed to create model: %v", err)
}
e, err := NewEnforcer(m)
if err != nil {
t.Fatalf("Failed to create enforcer: %v", err)
}
// Add a user to role1 should succeed
_, err = e.AddRoleForUser("alice", "role1")
if err != nil {
t.Fatalf("Failed to add role1 to alice: %v", err)
}
// Add a different user to role2 should succeed
_, err = e.AddRoleForUser("bob", "role2")
if err != nil {
t.Fatalf("Failed to add role2 to bob: %v", err)
}
// Try to add role2 to alice should fail (SOD violation)
_, err = e.AddRoleForUser("alice", "role2")
if err == nil {
t.Fatal("Expected constraint violation error, got nil")
}
if !strings.Contains(err.Error(), "constraint violation") {
t.Fatalf("Expected constraint violation error, got: %v", err)
}
}
func TestConstraintSODMax(t *testing.T) {
modelText := `
[request_definition]
r = sub, obj, act
[policy_definition]
p = sub, obj, act
[role_definition]
g = _, _
[constraint_definition]
c = sodMax(["role1", "role2", "role3"], 1)
[policy_effect]
e = some(where (p.eft == allow))
[matchers]
m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act
`
m, err := model.NewModelFromString(modelText)
if err != nil {
t.Fatalf("Failed to create model: %v", err)
}
e, err := NewEnforcer(m)
if err != nil {
t.Fatalf("Failed to create enforcer: %v", err)
}
// Add user to one role should succeed
_, err = e.AddRoleForUser("alice", "role1")
if err != nil {
t.Fatalf("Failed to add role1 to alice: %v", err)
}
// Try to add user to another role from the set should fail
_, err = e.AddRoleForUser("alice", "role2")
if err == nil {
t.Fatal("Expected constraint violation error, got nil")
}
if !strings.Contains(err.Error(), "constraint violation") {
t.Fatalf("Expected constraint violation error, got: %v", err)
}
}
func TestConstraintRoleMax(t *testing.T) {
modelText := `
[request_definition]
r = sub, obj, act
[policy_definition]
p = sub, obj, act
[role_definition]
g = _, _
[constraint_definition]
c = roleMax("admin", 2)
[policy_effect]
e = some(where (p.eft == allow))
[matchers]
m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act
`
m, err := model.NewModelFromString(modelText)
if err != nil {
t.Fatalf("Failed to create model: %v", err)
}
e, err := NewEnforcer(m)
if err != nil {
t.Fatalf("Failed to create enforcer: %v", err)
}
// Add first user to admin role should succeed
_, err = e.AddRoleForUser("alice", "admin")
if err != nil {
t.Fatalf("Failed to add admin to alice: %v", err)
}
// Add second user to admin role should succeed
_, err = e.AddRoleForUser("bob", "admin")
if err != nil {
t.Fatalf("Failed to add admin to bob: %v", err)
}
// Try to add third user to admin role should fail (exceeds max)
_, err = e.AddRoleForUser("charlie", "admin")
if err == nil {
t.Fatal("Expected constraint violation error, got nil")
}
if !strings.Contains(err.Error(), "constraint violation") {
t.Fatalf("Expected constraint violation error, got: %v", err)
}
}
func TestConstraintRolePre(t *testing.T) {
modelText := `
[request_definition]
r = sub, obj, act
[policy_definition]
p = sub, obj, act
[role_definition]
g = _, _
[constraint_definition]
c = rolePre("db_admin", "security_trained")
[policy_effect]
e = some(where (p.eft == allow))
[matchers]
m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act
`
m, err := model.NewModelFromString(modelText)
if err != nil {
t.Fatalf("Failed to create model: %v", err)
}
e, err := NewEnforcer(m)
if err != nil {
t.Fatalf("Failed to create enforcer: %v", err)
}
// Try to add db_admin without prerequisite should fail
_, err = e.AddRoleForUser("alice", "db_admin")
if err == nil {
t.Fatal("Expected constraint violation error, got nil")
}
if !strings.Contains(err.Error(), "constraint violation") {
t.Fatalf("Expected constraint violation error, got: %v", err)
}
// Add prerequisite role first
_, err = e.AddRoleForUser("alice", "security_trained")
if err != nil {
t.Fatalf("Failed to add security_trained to alice: %v", err)
}
// Now adding db_admin should succeed
_, err = e.AddRoleForUser("alice", "db_admin")
if err != nil {
t.Fatalf("Failed to add db_admin to alice: %v", err)
}
}
func TestConstraintWithoutRBAC(t *testing.T) {
modelText := `
[request_definition]
r = sub, obj, act
[policy_definition]
p = sub, obj, act
[constraint_definition]
c = sod("role1", "role2")
[policy_effect]
e = some(where (p.eft == allow))
[matchers]
m = r.sub == p.sub && r.obj == p.obj && r.act == p.act
`
_, err := model.NewModelFromString(modelText)
if err == nil {
t.Fatal("Expected error for constraints without RBAC, got nil")
}
if err != errors.ErrConstraintRequiresRBAC {
t.Fatalf("Expected ErrConstraintRequiresRBAC, got: %v", err)
}
}
func TestConstraintParsingError(t *testing.T) {
modelText := `
[request_definition]
r = sub, obj, act
[policy_definition]
p = sub, obj, act
[role_definition]
g = _, _
[constraint_definition]
c = invalidFunction("role1", "role2")
[policy_effect]
e = some(where (p.eft == allow))
[matchers]
m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act
`
_, err := model.NewModelFromString(modelText)
if err == nil {
t.Fatal("Expected parsing error for invalid constraint, got nil")
}
if !strings.Contains(err.Error(), "constraint parsing error") {
t.Fatalf("Expected constraint parsing error, got: %v", err)
}
}
func TestConstraintRollback(t *testing.T) {
modelText := `
[request_definition]
r = sub, obj, act
[policy_definition]
p = sub, obj, act
[role_definition]
g = _, _
[constraint_definition]
c = sod("role1", "role2")
[policy_effect]
e = some(where (p.eft == allow))
[matchers]
m = g(r.sub, p.sub) && r.obj == p.obj && r.act == p.act
`
m, err := model.NewModelFromString(modelText)
if err != nil {
t.Fatalf("Failed to create model: %v", err)
}
e, err := NewEnforcer(m)
if err != nil {
t.Fatalf("Failed to create enforcer: %v", err)
}
// Add alice to role1
_, err = e.AddRoleForUser("alice", "role1")
if err != nil {
t.Fatalf("Failed to add role1 to alice: %v", err)
}
// Try to add alice to role2 (should fail with constraint violation)
_, err = e.AddRoleForUser("alice", "role2")
if err == nil {
t.Fatal("Expected constraint violation error, got nil")
}
if !strings.Contains(err.Error(), "constraint violation") {
t.Fatalf("Expected constraint violation error, got: %v", err)
}
}