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/**
 * 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.cxf.resource;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLDecoder;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.apache.cxf.common.classloader.ClassLoaderUtils;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.common.util.Base64Utility;
import org.apache.cxf.common.util.StringUtils;
import org.apache.cxf.common.util.SystemPropertyAction;
import org.apache.cxf.helpers.IOUtils;
import org.apache.cxf.helpers.LoadingByteArrayOutputStream;

/**
 * Resolves a File, classpath resource, or URL according to the follow rules:
 * 
    *
  • Check to see if a file exists, relative to the base URI.
  • *
  • If the file doesn't exist, check the classpath
  • *
  • If the classpath doesn't exist, try to create URL from the URI.
  • *
* * @author Dan Diephouse */ public class URIResolver { private static final Logger LOG = LogUtils.getLogger(URIResolver.class); private Map cache = new HashMap(); private File file; private URI uri; private URL url; private InputStream is; private Class calling; public URIResolver() { } public URIResolver(String path) throws IOException { this("", path); } public URIResolver(String baseUriStr, String uriStr) throws IOException { this(baseUriStr, uriStr, null); } public URIResolver(String baseUriStr, String uriStr, Class calling) throws IOException { this.calling = (calling != null) ? calling : getClass(); if (uriStr.startsWith("classpath:")) { tryClasspath(uriStr); } else if (baseUriStr != null && (baseUriStr.startsWith("jar:") || baseUriStr.startsWith("zip:") || baseUriStr.startsWith("wsjar:"))) { tryArchive(baseUriStr, uriStr); } else if (uriStr.startsWith("jar:") || uriStr.startsWith("zip:") || uriStr.startsWith("wsjar:")) { tryArchive(uriStr); } else { tryFileSystem(baseUriStr, uriStr); } } public void unresolve() { this.file = null; this.uri = null; this.is = null; } public void resolve(String baseUriStr, String uriStr, Class callingCls) throws IOException { this.calling = (callingCls != null) ? callingCls : getClass(); this.file = null; this.uri = null; this.is = null; if (uriStr.startsWith("classpath:")) { tryClasspath(uriStr); } else if (baseUriStr != null && (baseUriStr.startsWith("jar:") || baseUriStr.startsWith("zip:") || baseUriStr.startsWith("wsjar:"))) { tryArchive(baseUriStr, uriStr); } else if (uriStr.startsWith("jar:") || uriStr.startsWith("zip:") || uriStr.startsWith("wsjar:")) { tryArchive(uriStr); } else { tryFileSystem(baseUriStr, uriStr); } } private void tryFileSystem(String baseUriStr, String uriStr) throws IOException, MalformedURLException { try { URI relative; String orig = uriStr; // It is possible that spaces have been encoded. We should decode them first. uriStr = uriStr.replaceAll("%20", " "); File uriFile = new File(uriStr); uriFile = new File(uriFile.getAbsolutePath()); if (!uriFile.exists()) { try { URI urif = new URI(URLDecoder.decode(orig, "ASCII")); if ("file".equals(urif.getScheme()) && urif.isAbsolute()) { File f2 = new File(urif); if (f2.exists()) { uriFile = f2; } } } catch (URISyntaxException ex) { //ignore } } if (!uriFile.exists()) { relative = new URI(uriStr.replaceAll(" ", "%20")); } else { relative = uriFile.getAbsoluteFile().toURI(); } if (relative.isAbsolute()) { uri = relative; url = relative.toURL(); try { HttpURLConnection huc = (HttpURLConnection)url.openConnection(); String host = SystemPropertyAction.getPropertyOrNull("http.proxyHost"); if (host != null) { //comment out unused port to pass pmd check /*String ports = SystemPropertyAction.getProperty("http.proxyPort"); int port = 80; if (ports != null) { port = Integer.parseInt(ports); }*/ String username = SystemPropertyAction.getPropertyOrNull("http.proxy.user"); String password = SystemPropertyAction.getPropertyOrNull("http.proxy.password"); if (username != null && password != null) { String encoded = Base64Utility.encode((username + ":" + password).getBytes()); huc.setRequestProperty("Proxy-Authorization", "Basic " + encoded); } } huc.setConnectTimeout(30000); huc.setReadTimeout(60000); is = huc.getInputStream(); } catch (ClassCastException ex) { is = url.openStream(); } } else if (!StringUtils.isEmpty(baseUriStr)) { URI base; File baseFile = new File(baseUriStr); if (!baseFile.exists() && baseUriStr.startsWith("file:")) { baseFile = new File(getFilePathFromUri(baseUriStr)); } if (baseFile.exists()) { base = baseFile.toURI(); } else { base = new URI(baseUriStr); } base = base.resolve(relative); if (base.isAbsolute() && "file".equalsIgnoreCase(base.getScheme())) { try { // decode space before create a file baseFile = new File(base.getPath().replace("%20", " ")); if (baseFile.exists()) { is = base.toURL().openStream(); uri = base; } else { tryClasspath(base.toString().startsWith("file:") ? base.toString().substring(5) : base.toString()); } } catch (Throwable th) { tryClasspath(base.toString().startsWith("file:") ? base.toString().substring(5) : base.toString()); } } else { tryClasspath(base.toString().startsWith("file:") ? base.toString().substring(5) : base.toString()); } } else { tryClasspath(uriStr.startsWith("file:") ? uriStr.substring(5) : uriStr); } } catch (URISyntaxException e) { // do nothing } if (is == null && baseUriStr != null && baseUriStr.startsWith("classpath:")) { tryClasspath(baseUriStr + uriStr); } if (is == null && uri != null && "file".equals(uri.getScheme())) { try { file = new File(uri); } catch (IllegalArgumentException iae) { file = new File(uri.toURL().getPath()); if (!file.exists()) { file = null; } } } if (is == null && file != null && file.exists()) { uri = file.toURI(); try { is = new FileInputStream(file); } catch (FileNotFoundException e) { throw new RuntimeException("File was deleted! " + uriStr, e); } url = file.toURI().toURL(); } else if (is == null) { tryClasspath(uriStr); } } /** * Assumption: URI scheme is "file" */ private String getFilePathFromUri(String uriString) { String path = null; try { path = new URL(uriString).getPath(); } catch (MalformedURLException e) { // ignore } if (path == null) { if (uriString.startsWith("file:/")) { path = uriString.substring(6); } else if (uriString.startsWith("file:")) { // handle Windows file URI such as "file:C:/foo/bar" path = uriString.substring(5); } } // decode spaces before returning otherwise File.exists returns false return path.replace("%20", " "); } private void tryArchive(String baseStr, String uriStr) throws IOException { int i = baseStr.indexOf('!'); if (i == -1) { tryFileSystem(baseStr, uriStr); } String archiveBase = baseStr.substring(0, i + 1); String archiveEntry = baseStr.substring(i + 1); try { URI u = new URI(archiveEntry).resolve(uriStr); tryArchive(archiveBase + u.toString()); if (is != null) { if (u.isAbsolute()) { url = u.toURL(); } return; } } catch (URISyntaxException e) { // do nothing } tryFileSystem("", uriStr); } private void tryArchive(String uriStr) throws IOException { int i = uriStr.indexOf('!'); if (i == -1) { return; } url = new URL(uriStr); try { is = url.openStream(); try { uri = url.toURI(); } catch (URISyntaxException ex) { // ignore } } catch (IOException e) { uriStr = uriStr.substring(i + 1); tryClasspath(uriStr); } } private void tryClasspath(String uriStr) throws IOException { boolean isClasspathURL = false; if (uriStr.startsWith("classpath:")) { uriStr = uriStr.substring(10); isClasspathURL = true; } url = ClassLoaderUtils.getResource(uriStr, calling); if (url == null) { tryRemote(uriStr); } else { try { uri = url.toURI(); } catch (URISyntaxException e) { // yep, some versions of the JDK can't handle spaces when URL.toURI() is called, // and lots of people on windows have their maven repositories at // C:/Documents and Settings//.m2/repository // re: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6506304 if (url.toString().contains(" ")) { url = new URL(url.toString().replace(" ", "%20")); } //let's try this again try { uri = url.toURI(); } catch (URISyntaxException e1) { // processing the jar:file:/ type value String urlStr = url.toString(); if (urlStr.startsWith("jar:") || urlStr.startsWith("zip:") || urlStr.startsWith("wsjar:")) { int pos = urlStr.indexOf('!'); if (pos != -1) { try { uri = new URI("classpath:" + urlStr.substring(pos + 1)); } catch (URISyntaxException ue) { // ignore } } } } } is = url.openStream(); } if (is == null && isClasspathURL) { LOG.log(Level.WARNING, "NOT_ON_CLASSPATH", uriStr); } } private void tryRemote(String uriStr) throws IOException { try { LoadingByteArrayOutputStream bout = cache.get(uriStr); url = new URL(uriStr); uri = new URI(url.toString()); if (bout == null) { URLConnection connection = url.openConnection(); is = connection.getInputStream(); bout = new LoadingByteArrayOutputStream(1024); IOUtils.copy(is, bout); is.close(); cache.put(uriStr, bout); } is = bout.createInputStream(); } catch (MalformedURLException e) { // do nothing } catch (URISyntaxException e) { // do nothing } } public URI getURI() { return uri; } public URL getURL() { return url; } public InputStream getInputStream() { return is; } public boolean isFile() { if (file != null) { return file.exists(); } return false; } public File getFile() { return file; } public boolean isResolved() { return is != null; } }




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