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[MNG-5862] Support XML entities and XInclude
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85 changes: 85 additions & 0 deletions
85
maven-model-builder/src/main/java/org/apache/maven/model/io/LocalXmlResolver.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| /* | ||
| * 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 org.apache.maven.model.io; | ||
|
|
||
| import javax.xml.stream.XMLResolver; | ||
| import javax.xml.stream.XMLStreamException; | ||
| import javax.xml.transform.stream.StreamSource; | ||
|
|
||
| import java.io.IOException; | ||
| import java.net.URI; | ||
| import java.net.URISyntaxException; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.nio.file.Paths; | ||
|
|
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| public class LocalXmlResolver implements XMLResolver { | ||
|
|
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| private final Path rootDirectory; | ||
|
|
||
| public LocalXmlResolver(Path rootDirectory) { | ||
| this.rootDirectory = rootDirectory != null ? rootDirectory.normalize() : null; | ||
| } | ||
|
|
||
| @Override | ||
| public Object resolveEntity(String publicID, String systemID, String baseURI, String namespace) | ||
| throws XMLStreamException { | ||
| if (rootDirectory == null) { | ||
| return null; | ||
| } | ||
| if (systemID == null) { | ||
| throw new XMLStreamException("systemID is null"); | ||
| } | ||
| if (baseURI == null) { | ||
| throw new XMLStreamException("baseURI is null"); | ||
| } | ||
| URI baseUri; | ||
| try { | ||
| baseUri = new URI(baseURI).normalize(); | ||
| } catch (URISyntaxException e) { | ||
| throw new XMLStreamException("Invalid syntax for baseURI URI: " + baseURI, e); | ||
| } | ||
| URI sysUri; | ||
| try { | ||
| sysUri = new URI(systemID).normalize(); | ||
| } catch (URISyntaxException e) { | ||
| throw new XMLStreamException("Invalid syntax for systemID URI: " + systemID, e); | ||
| } | ||
| if (sysUri.getScheme() != null) { | ||
| throw new XMLStreamException("systemID must be a relative URI: " + systemID); | ||
| } | ||
| Path base = Paths.get(baseUri).normalize(); | ||
| if (!base.startsWith(rootDirectory)) { | ||
| return null; | ||
| } | ||
| Path sys = Paths.get(sysUri.getSchemeSpecificPart()).normalize(); | ||
| if (sys.isAbsolute()) { | ||
| throw new XMLStreamException("systemID must be a relative path: " + systemID); | ||
| } | ||
| Path res = base.resolveSibling(sys).normalize(); | ||
| if (!res.startsWith(rootDirectory)) { | ||
| throw new XMLStreamException("systemID cannot refer to outside rootDirectory: " + systemID); | ||
| } | ||
| try { | ||
| return new StreamSource(Files.newInputStream(res), res.toUri().toASCIIString()); | ||
| } catch (IOException e) { | ||
| throw new XMLStreamException("Unable to create Source for " + systemID + ": " + e.getMessage(), e); | ||
| } | ||
| } | ||
| } |
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