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feat: add option to load certificate from header (#50)
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128 changes: 128 additions & 0 deletions
128
src/main/java/io/gravitee/policy/sslenforcement/X500NameComparator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| /** | ||
| * Copyright (C) 2015 The Gravitee team (http://gravitee.io) | ||
| * | ||
| * 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. | ||
| */ | ||
| package io.gravitee.policy.sslenforcement; | ||
|
|
||
| import org.bouncycastle.asn1.ASN1ObjectIdentifier; | ||
| import org.bouncycastle.asn1.x500.AttributeTypeAndValue; | ||
| import org.bouncycastle.asn1.x500.RDN; | ||
| import org.bouncycastle.asn1.x500.X500Name; | ||
| import org.bouncycastle.asn1.x500.style.IETFUtils; | ||
| import org.springframework.util.AntPathMatcher; | ||
|
|
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| public class X500NameComparator { | ||
|
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| private X500NameComparator() {} | ||
|
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| public static boolean areEqual(X500Name name1, X500Name name2) { | ||
| final RDN[] rdns1 = name1.getRDNs(); | ||
| final RDN[] rdns2 = name2.getRDNs(); | ||
|
|
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| if (rdns1.length != rdns2.length) { | ||
| return false; | ||
| } | ||
|
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| boolean reverse = false; | ||
|
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| if (rdns1[0].getFirst() != null && rdns2[0].getFirst() != null) { | ||
| reverse = !rdns1[0].getFirst().getType().equals(rdns2[0].getFirst().getType()); // guess forward | ||
| } | ||
|
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| for (int i = 0; i != rdns1.length; i++) { | ||
| if (!foundMatch(reverse, rdns1[i], rdns2)) { | ||
| return false; | ||
| } | ||
| } | ||
|
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| return true; | ||
| } | ||
|
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| private static boolean foundMatch(boolean reverse, RDN rdn, RDN[] possRDNs) { | ||
| if (reverse) { | ||
| for (int i = possRDNs.length - 1; i >= 0; i--) { | ||
| if (possRDNs[i] != null && rDNAreEqual(rdn, possRDNs[i])) { | ||
| possRDNs[i] = null; | ||
| return true; | ||
| } | ||
| } | ||
| } else { | ||
| for (int i = 0; i != possRDNs.length; i++) { | ||
| if (possRDNs[i] != null && rDNAreEqual(rdn, possRDNs[i])) { | ||
| possRDNs[i] = null; | ||
| return true; | ||
| } | ||
| } | ||
| } | ||
|
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| return false; | ||
| } | ||
|
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| private static boolean rDNAreEqual(RDN rdn1, RDN rdn2) { | ||
| if (rdn1.isMultiValued()) { | ||
| if (rdn2.isMultiValued()) { | ||
| AttributeTypeAndValue[] atvs1 = rdn1.getTypesAndValues(); | ||
| AttributeTypeAndValue[] atvs2 = rdn2.getTypesAndValues(); | ||
|
|
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| if (atvs1.length != atvs2.length) { | ||
| return false; | ||
| } | ||
|
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| for (int i = 0; i != atvs1.length; i++) { | ||
| if (!atvAreEqual(atvs1[i], atvs2[i])) { | ||
| return false; | ||
| } | ||
| } | ||
| } else { | ||
| return false; | ||
| } | ||
| } else { | ||
| if (!rdn2.isMultiValued()) { | ||
| return atvAreEqual(rdn1.getFirst(), rdn2.getFirst()); | ||
| } else { | ||
| return false; | ||
| } | ||
| } | ||
|
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| return true; | ||
| } | ||
|
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| private static boolean atvAreEqual(AttributeTypeAndValue atv1, AttributeTypeAndValue atv2) { | ||
| if (atv1 == atv2) { | ||
| return true; | ||
| } | ||
|
|
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| if (atv1 == null) { | ||
| return false; | ||
| } | ||
|
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| if (atv2 == null) { | ||
| return false; | ||
| } | ||
|
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| ASN1ObjectIdentifier o1 = atv1.getType(); | ||
| ASN1ObjectIdentifier o2 = atv2.getType(); | ||
|
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| if (!o1.equals(o2)) { | ||
| return false; | ||
| } | ||
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| String v1 = IETFUtils.canonicalize(IETFUtils.valueToString(atv1.getValue())); | ||
| String v2 = IETFUtils.canonicalize(IETFUtils.valueToString(atv2.getValue())); | ||
|
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| AntPathMatcher matcher = new AntPathMatcher(); | ||
|
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| return matcher.match(v1, v2); | ||
| } | ||
| } |
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