diff options
Diffstat (limited to 'applications/native/src/main')
3 files changed, 191 insertions, 0 deletions
diff --git a/applications/native/src/main/java/org/onap/policy/xacml/pdp/application/nativ/NativePdpApplication.java b/applications/native/src/main/java/org/onap/policy/xacml/pdp/application/nativ/NativePdpApplication.java new file mode 100644 index 00000000..0d862d11 --- /dev/null +++ b/applications/native/src/main/java/org/onap/policy/xacml/pdp/application/nativ/NativePdpApplication.java @@ -0,0 +1,78 @@ +/*- + * ============LICENSE_START======================================================= + * ONAP + * ================================================================================ + * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.xacml.pdp.application.nativ; + +import com.att.research.xacml.api.Request; +import com.att.research.xacml.api.Response; +import java.util.Arrays; +import java.util.List; +import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeIdentifier; +import org.onap.policy.pdp.xacml.application.common.ToscaPolicyTranslator; +import org.onap.policy.pdp.xacml.application.common.std.StdXacmlApplicationServiceProvider; + +/** + * This class implements an application that handles onap.policies.native.Xacml policies. + * + * @author Chenfei Gao (cgao@research.att.com) + * + */ +public class NativePdpApplication extends StdXacmlApplicationServiceProvider { + + private static final ToscaPolicyTypeIdentifier supportedPolicyType = new ToscaPolicyTypeIdentifier( + "onap.policies.native.Xacml", "1.0.0"); + private NativePdpApplicationTranslator translator = new NativePdpApplicationTranslator(); + + @Override + public String applicationName() { + return "native"; + } + + @Override + public List<String> actionDecisionsSupported() { + return Arrays.asList("native"); + } + + @Override + public synchronized List<ToscaPolicyTypeIdentifier> supportedPolicyTypes() { + return Arrays.asList(supportedPolicyType); + } + + @Override + public boolean canSupportPolicyType(ToscaPolicyTypeIdentifier policyTypeId) { + return supportedPolicyType.equals(policyTypeId); + } + + @Override + protected ToscaPolicyTranslator getTranslator(String type) { + return translator; + } + + /** + * Makes decision for the incoming native xacml request. + * @param request the native xacml request + * @return the native xacml response + */ + public Response makeNativeDecision(Request request) { + return this.xacmlDecision(request); + } +} diff --git a/applications/native/src/main/java/org/onap/policy/xacml/pdp/application/nativ/NativePdpApplicationTranslator.java b/applications/native/src/main/java/org/onap/policy/xacml/pdp/application/nativ/NativePdpApplicationTranslator.java new file mode 100644 index 00000000..98a1c657 --- /dev/null +++ b/applications/native/src/main/java/org/onap/policy/xacml/pdp/application/nativ/NativePdpApplicationTranslator.java @@ -0,0 +1,112 @@ +/*- + * ============LICENSE_START======================================================= + * ONAP + * ================================================================================ + * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.xacml.pdp.application.nativ; + +import com.att.research.xacml.api.Request; +import com.att.research.xacml.api.Response; +import com.att.research.xacml.util.XACMLPolicyScanner; +import java.io.ByteArrayInputStream; +import java.io.IOException; +import java.io.InputStream; +import java.nio.charset.StandardCharsets; +import java.util.Base64; +import java.util.Map; +import oasis.names.tc.xacml._3_0.core.schema.wd_17.PolicyType; +import org.onap.policy.models.decisions.concepts.DecisionRequest; +import org.onap.policy.models.decisions.concepts.DecisionResponse; +import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy; +import org.onap.policy.pdp.xacml.application.common.ToscaPolicyConversionException; +import org.onap.policy.pdp.xacml.application.common.ToscaPolicyTranslator; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * This class implements one translator that interprets TOSCA policy and decision API request/response payload. + * + * @author Chenfei Gao (cgao@research.att.com) + * + */ +public class NativePdpApplicationTranslator implements ToscaPolicyTranslator { + + private static final Logger LOGGER = LoggerFactory.getLogger(NativePdpApplicationTranslator.class); + private static final String POLICY = "policy"; + + public NativePdpApplicationTranslator() { + super(); + } + + @Override + public PolicyType convertPolicy(ToscaPolicy toscaPolicy) throws ToscaPolicyConversionException { + // + // Extract the Base64 encoded policy xml string and decode it + // + String encodedXacmlPolicy = getNativeXacmlPolicy(toscaPolicy); + String decodedXacmlPolicy; + try { + decodedXacmlPolicy = new String(Base64.getDecoder().decode(encodedXacmlPolicy), StandardCharsets.UTF_8); + } catch (IllegalArgumentException exc) { + throw new ToscaPolicyConversionException("error on Base64 decoding the native policy", exc); + } + LOGGER.debug("Decoded xacml policy {}",decodedXacmlPolicy); + // + // Scan the string and convert to xacml PolicyType + // + try (InputStream is = new ByteArrayInputStream(decodedXacmlPolicy.getBytes(StandardCharsets.UTF_8))) { + // + // Here we assume it is PolicyType, not PolicySetType + // PolicySetType will be addressed later + // + return (PolicyType) XACMLPolicyScanner.readPolicy(is); + } catch (IOException exc) { + throw new ToscaPolicyConversionException("Failed to read policy", exc); + } + } + + private String getNativeXacmlPolicy(ToscaPolicy toscaPolicy) throws ToscaPolicyConversionException { + + Map<String, Object> propertyMap = toscaPolicy.getProperties(); + if (propertyMap.isEmpty() || !propertyMap.containsKey(POLICY)) { + throw new ToscaPolicyConversionException("no xacml native policy found in the tosca policy"); + } + + String nativePolicyString = propertyMap.get(POLICY).toString(); + LOGGER.debug("Base64 encoded native xacml policy {}", nativePolicyString); + return nativePolicyString; + } + + @Override + public Request convertRequest(DecisionRequest request) { + // + // We do nothing to DecisionRequest for native xacml application + // + return null; + } + + @Override + public DecisionResponse convertResponse(Response xacmlResponse) { + // + // We do nothing to DecisionResponse for native xacml application + // + return null; + } +}
\ No newline at end of file diff --git a/applications/native/src/main/resources/META-INF/services/org.onap.policy.pdp.xacml.application.common.XacmlApplicationServiceProvider b/applications/native/src/main/resources/META-INF/services/org.onap.policy.pdp.xacml.application.common.XacmlApplicationServiceProvider new file mode 100644 index 00000000..480ad05a --- /dev/null +++ b/applications/native/src/main/resources/META-INF/services/org.onap.policy.pdp.xacml.application.common.XacmlApplicationServiceProvider @@ -0,0 +1 @@ +org.onap.policy.xacml.pdp.application.nativ.NativePdpApplication
\ No newline at end of file |