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 *  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
 *
 *    https://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 org.springframework.security.access.intercept.aopalliance

import grails.plugin.springsecurity.SecurityTestUtils
import org.aopalliance.aop.Advice
import org.aopalliance.intercept.MethodInvocation
import org.springframework.security.access.AccessDecisionManager
import org.springframework.security.access.SecurityConfig
import org.springframework.security.access.intercept.AfterInvocationManager
import org.springframework.security.access.intercept.RunAsManagerImpl
import org.springframework.security.access.method.MethodSecurityMetadataSource
import org.springframework.security.authentication.AuthenticationCredentialsNotFoundException
import org.springframework.security.core.Authentication
import org.springframework.security.core.context.SecurityContextHolder
import spock.lang.Specification

class MethodSecurityInterceptorSpec extends Specification {

	void cleanup() {
		SecurityTestUtils.logout()
	}

	void 'invoke acts as advice and applies access and after-invocation processing'() {
		given:
		Authentication authentication = SecurityTestUtils.authenticate(['ROLE_USER'])
		def method = String.getMethod('trim')
		def invocation = Stub(MethodInvocation) {
			getMethod() >> method
			getThis() >> '  ok  '
			proceed() >> 'ok'
		}
		def attributes = [new SecurityConfig('ROLE_USER')]
		def interceptor = new MethodSecurityInterceptor(
			securityMetadataSource: Stub(MethodSecurityMetadataSource) {
				getAttributes(method, String) >> attributes
			},
			accessDecisionManager: Mock(AccessDecisionManager) {
				1 * decide(authentication, invocation, attributes)
			},
			afterInvocationManager: Mock(AfterInvocationManager) {
				1 * decide(authentication, invocation, attributes, 'ok') >> 'filtered'
			}
		)

		expect:
		interceptor instanceof Advice
		interceptor.invoke(invocation) == 'filtered'
	}

	void 'invoke proceeds directly when there are no security attributes'() {
		given:
		def method = String.getMethod('trim')
		def invocation = Stub(MethodInvocation) {
			getMethod() >> method
			getThis() >> '  ok  '
			proceed() >> 'ok'
		}
		def interceptor = new MethodSecurityInterceptor(
			securityMetadataSource: Stub(MethodSecurityMetadataSource) {
				getAttributes(method, String) >> null
			}
		)

		expect:
		interceptor.invoke(invocation) == 'ok'
	}

	void 'invoke fails with credentials not found when secured invocation has no authentication'() {
		given:
		def method = String.getMethod('trim')
		def invocation = Stub(MethodInvocation) {
			getMethod() >> method
			getThis() >> '  ok  '
		}
		def interceptor = new MethodSecurityInterceptor(
			securityMetadataSource: Stub(MethodSecurityMetadataSource) {
				getAttributes(method, String) >> [new SecurityConfig('ROLE_USER')]
			}
		)

		when:
		interceptor.invoke(invocation)

		then:
		thrown AuthenticationCredentialsNotFoundException
	}

	void 'invoke applies run-as authentication during the secured invocation and restores the original authentication afterwards'() {
		given:
		Authentication authentication = SecurityTestUtils.authenticate(['ROLE_ADMIN'])
		def method = String.getMethod('trim')
		def attributes = [new SecurityConfig('ROLE_ADMIN'), new SecurityConfig('RUN_AS_SUPERUSER')]
		def interceptor = new MethodSecurityInterceptor(
			securityMetadataSource: Stub(MethodSecurityMetadataSource) {
				getAttributes(method, String) >> attributes
			},
			accessDecisionManager: Mock(AccessDecisionManager) {
				1 * decide(authentication, _ as MethodInvocation, attributes)
			},
			runAsManager: new RunAsManagerImpl(),
			afterInvocationManager: Mock(AfterInvocationManager) {
				1 * decide(_ as Authentication, _ as MethodInvocation, attributes, 'ok') >> { Authentication activeAuthentication, MethodInvocation ignored, Collection ignoredAttributes, Object returnedObject ->
					assert activeAuthentication.authorities*.authority.contains('ROLE_RUN_AS_SUPERUSER')
					return returnedObject
				}
			}
		)
		def invocation = Stub(MethodInvocation) {
			getMethod() >> method
			getThis() >> '  ok  '
			proceed() >> {
				assert SecurityContextHolder.context.authentication.authorities*.authority.contains('ROLE_RUN_AS_SUPERUSER')
				'ok'
			}
		}

		when:
		def result = interceptor.invoke(invocation)

		then:
		result == 'ok'
		SecurityContextHolder.context.authentication.is(authentication)
		!SecurityContextHolder.context.authentication.authorities*.authority.contains('ROLE_RUN_AS_SUPERUSER')
	}
}





