| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Copyright 1999-2004 The Apache Software Foundation. |
| * |
| * 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 com.sun.org.apache.xml.internal.security.utils.resolver.implementations; |
| |
| |
| |
| import java.io.FileInputStream; |
| |
| import com.sun.org.apache.xml.internal.utils.URI; |
| import com.sun.org.apache.xml.internal.security.signature.XMLSignatureInput; |
| import com.sun.org.apache.xml.internal.security.utils.resolver.ResourceResolverException; |
| import com.sun.org.apache.xml.internal.security.utils.resolver.ResourceResolverSpi; |
| import org.w3c.dom.Attr; |
| |
| |
| /** |
| * A simple ResourceResolver for requests into the local filesystem. |
| * |
| * @author $Author: raul $ |
| */ |
| public class ResolverLocalFilesystem extends ResourceResolverSpi { |
| |
| /** {@link java.util.logging} logging facility */ |
| static java.util.logging.Logger log = |
| java.util.logging.Logger.getLogger( |
| ResolverLocalFilesystem.class.getName()); |
| |
| /** |
| * @inheritDoc |
| */ |
| public XMLSignatureInput engineResolve(Attr uri, String BaseURI) |
| throws ResourceResolverException { |
| |
| try { |
| URI uriNew = new URI(new URI(BaseURI), uri.getNodeValue()); |
| |
| // if the URI contains a fragment, ignore it |
| URI uriNewNoFrag = new URI(uriNew); |
| |
| uriNewNoFrag.setFragment(null); |
| |
| String fileName = |
| ResolverLocalFilesystem |
| .translateUriToFilename(uriNewNoFrag.toString()); |
| FileInputStream inputStream = new FileInputStream(fileName); |
| XMLSignatureInput result = new XMLSignatureInput(inputStream); |
| |
| result.setSourceURI(uriNew.toString()); |
| |
| return result; |
| } catch (Exception e) { |
| throw new ResourceResolverException("generic.EmptyMessage", e, uri, |
| BaseURI); |
| } |
| } |
| |
| /** |
| * Method translateUriToFilename |
| * |
| * @param uri |
| * @return the string of the filename |
| */ |
| private static String translateUriToFilename(String uri) { |
| |
| String subStr = uri.substring("file:/".length()); |
| |
| if (subStr.indexOf("%20") > -1) |
| { |
| int offset = 0; |
| int index = 0; |
| StringBuffer temp = new StringBuffer(subStr.length()); |
| do |
| { |
| index = subStr.indexOf("%20",offset); |
| if (index == -1) temp.append(subStr.substring(offset)); |
| else |
| { |
| temp.append(subStr.substring(offset,index)); |
| temp.append(' '); |
| offset = index+3; |
| } |
| } |
| while(index != -1); |
| subStr = temp.toString(); |
| } |
| |
| if (subStr.charAt(1) == ':') { |
| // we're running M$ Windows, so this works fine |
| return subStr; |
| } |
| // we're running some UNIX, so we have to prepend a slash |
| return "/" + subStr; |
| } |
| |
| /** |
| * @inheritDoc |
| */ |
| public boolean engineCanResolve(Attr uri, String BaseURI) { |
| |
| if (uri == null) { |
| return false; |
| } |
| |
| String uriNodeValue = uri.getNodeValue(); |
| |
| if (uriNodeValue.equals("") || (uriNodeValue.charAt(0)=='#')) { |
| return false; |
| } |
| |
| try { |
| //URI uriNew = new URI(new URI(BaseURI), uri.getNodeValue()); |
| if (true) |
| if (log.isLoggable(java.util.logging.Level.FINE)) log.log(java.util.logging.Level.FINE, "I was asked whether I can resolve " + uriNodeValue/*uriNew.toString()*/); |
| |
| if ( uriNodeValue.startsWith("file:") || |
| BaseURI.startsWith("file:")/*uriNew.getScheme().equals("file")*/) { |
| if (true) |
| if (log.isLoggable(java.util.logging.Level.FINE)) log.log(java.util.logging.Level.FINE, "I state that I can resolve " + uriNodeValue/*uriNew.toString()*/); |
| |
| return true; |
| } |
| } catch (Exception e) {} |
| |
| if (log.isLoggable(java.util.logging.Level.FINE)) log.log(java.util.logging.Level.FINE, "But I can't"); |
| |
| return false; |
| } |
| } |