485712 - Quickstart web.xml is absolute

jetty-quickstart/src/main/java/org/eclipse/jetty/quickstart/AttributeNormalizer.java

@@ -0,0 +1,157 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
+//  ------------------------------------------------------------------------
+//  All rights reserved. This program and the accompanying materials
+//  are made available under the terms of the Eclipse Public License v1.0
+//  and Apache License v2.0 which accompanies this distribution.
+//
+//      The Eclipse Public License is available at
+//      http://www.eclipse.org/legal/epl-v10.html
+//
+//      The Apache License v2.0 is available at
+//      http://www.opensource.org/licenses/apache2.0.php
+//
+//  You may elect to redistribute this code under either of these licenses.
+//  ========================================================================
+//
+
+package org.eclipse.jetty.quickstart;
+
+import java.io.File;
+import java.net.URI;
+import java.net.URL;
+import java.nio.file.Path;
+
+import org.eclipse.jetty.util.URIUtil;
+import org.eclipse.jetty.util.log.Log;
+import org.eclipse.jetty.util.log.Logger;
+import org.eclipse.jetty.util.resource.Resource;
+
+/**
+ * Normalize Attribute to String.
+ * <p>Replaces and expands:
+ * <ul>
+ * <li>${WAR}</li>
+ * <li>${jetty.base}</li>
+ * <li>${jetty.home}</li>
+ * <li>${user.home}</li>
+ * <li>${user.dir}</li>
+ * </ul>
+ */
+public class AttributeNormalizer
+{
+    private static final Logger LOG = Log.getLogger(AttributeNormalizer.class);
+    private final Path _warPath;
+    private final Path _jettyBasePath;
+    private final Path _jettyHomePath;
+    private final Path _userHomePath;
+    private final Path _userDirPath;
+    
+    
+    public AttributeNormalizer(Resource baseResource)
+    {
+        try
+        {
+            _warPath=baseResource==null?null:baseResource.getFile().toPath();
+            _jettyBasePath=systemPath("jetty.base");
+            _jettyHomePath=systemPath("jetty.home");
+            _userHomePath=systemPath("user.home");
+            _userDirPath=systemPath("user.dir");
+        }
+        catch(Exception e)
+        {
+            throw new IllegalArgumentException(e);
+        }
+    }
+    
+    private static Path systemPath(String property) throws Exception
+    {
+        String p=System.getProperty(property);
+        if (p!=null)
+            return new File(p).getAbsoluteFile().getCanonicalFile().toPath();
+        return null;
+    }
+   
+    public String normalize(Object o)
+    {
+        try
+        {
+            // Find a URI
+            URI uri=null;
+            if (o instanceof URI)
+                uri=(URI)o;
+            else if (o instanceof URL)
+                uri = ((URL)o).toURI();
+            else if (o instanceof File)
+                uri = ((File)o).toURI();
+            else
+            {
+                String s=o.toString();
+                uri=new URI(s);
+                if (uri.getScheme()==null)
+                    return s;
+            }
+            
+            if ("jar".equalsIgnoreCase(uri.getScheme()))
+            {
+                String raw = uri.getRawSchemeSpecificPart();
+                int bang=raw.indexOf("!/");
+                String normal=normalize(raw.substring(0,bang));
+                String suffix=raw.substring(bang);
+                return "jar:"+normal+suffix;
+            }
+            else if ("file".equalsIgnoreCase(uri.getScheme()))
+            {
+                return "file:"+normalizePath(new File(uri).toPath());
+            }
+            
+        }
+        catch(Exception e)
+        {
+            LOG.warn(e);
+        }
+        return String.valueOf(o);
+    }
+    
+    public String normalizePath(Path path)
+    {
+        if (_warPath!=null && path.startsWith(_warPath))
+            return URIUtil.addPaths("${WAR}",_warPath.relativize(path).toString());
+        if (_jettyBasePath!=null && path.startsWith(_jettyBasePath))
+            return URIUtil.addPaths("${jetty.base}",_jettyBasePath.relativize(path).toString());
+        if (_jettyHomePath!=null && path.startsWith(_jettyHomePath))
+            return URIUtil.addPaths("${jetty.home}",_jettyHomePath.relativize(path).toString());
+        if (_userHomePath!=null && path.startsWith(_userHomePath))
+            return URIUtil.addPaths("${user.home}",_userHomePath.relativize(path).toString());
+        if (_userDirPath!=null && path.startsWith(_userDirPath))
+            return URIUtil.addPaths("${user.dir}",_userDirPath.relativize(path).toString());
+        
+        return path.toString();
+    }
+    
+    
+    public String expand(String s)
+    {
+        int i=s.indexOf("${");
+        if (i<0)
+            return s;
+        int e=s.indexOf('}',i+3);
+        String prop=s.substring(i+2,e);
+        switch(prop)
+        {
+            case "WAR":
+                return s.substring(0,i)+_warPath+expand(s.substring(e+1));
+            case "jetty.base":
+                return s.substring(0,i)+_jettyBasePath+expand(s.substring(e+1));
+            case "jetty.home":
+                return s.substring(0,i)+_jettyHomePath+expand(s.substring(e+1));
+            case "user.home":
+                return s.substring(0,i)+_userHomePath+expand(s.substring(e+1));
+            case "user.dir":
+                return s.substring(0,i)+_userDirPath+expand(s.substring(e+1));
+            default:
+                return s;
+        }
+    }
+}