| /** |
| * 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.xml.security.stax.impl.resourceResolvers; |
| |
| import org.apache.xml.security.exceptions.XMLSecurityException; |
| import org.apache.xml.security.stax.ext.ResourceResolver; |
| import org.apache.xml.security.stax.ext.ResourceResolverLookup; |
| import org.apache.xml.security.stax.ext.stax.XMLSecStartElement; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.*; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Resolver for external http[s] resources. |
| * |
| */ |
| public class ResolverHttp implements ResourceResolver, ResourceResolverLookup { |
| |
| private static Proxy proxy; |
| |
| private String uri; |
| private String baseURI; |
| private Pattern pattern = Pattern.compile("^http[s]?://.*"); |
| |
| public ResolverHttp() { |
| } |
| |
| public ResolverHttp(String uri, String baseURI) { |
| this.uri = uri; |
| this.baseURI = baseURI; |
| } |
| |
| public static void setProxy(Proxy proxy) { |
| ResolverHttp.proxy = proxy; |
| } |
| |
| @Override |
| public ResourceResolverLookup canResolve(String uri, String baseURI) { |
| if (uri == null) { |
| return null; |
| } |
| if (pattern.matcher(uri).matches() || baseURI != null && pattern.matcher(baseURI).matches()) { |
| return this; |
| } |
| return null; |
| } |
| |
| @Override |
| public ResourceResolver newInstance(String uri, String baseURI) { |
| return new ResolverHttp(uri, baseURI); |
| } |
| |
| @Override |
| public boolean isSameDocumentReference() { |
| return false; |
| } |
| |
| @Override |
| public boolean matches(XMLSecStartElement xmlSecStartElement) { |
| return false; |
| } |
| |
| @Override |
| public InputStream getInputStreamFromExternalReference() throws XMLSecurityException { |
| try { |
| URI tmp; |
| if (baseURI == null || "".equals(baseURI)) { |
| tmp = new URI(uri); |
| } else { |
| tmp = new URI(baseURI).resolve(uri); |
| } |
| |
| if (tmp.getFragment() != null) { |
| tmp = new URI(tmp.getScheme(), tmp.getSchemeSpecificPart(), null); |
| } |
| URL url = tmp.toURL(); |
| HttpURLConnection urlConnection; |
| if (proxy != null) { |
| urlConnection = (HttpURLConnection)url.openConnection(proxy); |
| } else { |
| urlConnection = (HttpURLConnection)url.openConnection(); |
| } |
| return urlConnection.getInputStream(); |
| } catch (MalformedURLException e) { |
| throw new XMLSecurityException(e); |
| } catch (IOException e) { |
| throw new XMLSecurityException(e); |
| } catch (URISyntaxException e) { |
| throw new XMLSecurityException(e); |
| } |
| } |
| } |