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package org.apache.catalina.startup;
import org.apache.catalina.Context;
import org.apache.catalina.Deployer;
import org.apache.catalina.Host;
import org.apache.catalina.core.StandardHost;
import org.apache.tomcat.util.digester.Digester;
import org.apache.tomcat.util.digester.Rule;
import org.xml.sax.Attributes;
import java.io.File;
import java.lang.reflect.Method;
import java.net.URL;
import java.util.Locale;
/**
* <p>Rule that modifies the docBase of the host, setting it appropriately,
* before adding the Context to the parent Host.</p>
*
* @author Remy Maucherat
*/
public class SetDocBaseRule extends Rule {
// -------------------------------------------------------- Constructors
/**
* Construct a new instance of this Rule.
*
* @param digester Digester we are associated with
*/
public SetDocBaseRule(Digester digester) {
super(digester);
}
// -------------------------------------------------- Instance Variables
// ------------------------------------------------------ Public Methods
/**
* Handle the beginning of an XML element.
*
* @param attributes The attributes of this element
*
* @exception Exception if a processing error occurs
*/
public void begin(Attributes attributes) throws Exception {
Context child = (Context) digester.peek(0);
Deployer parent = (Deployer) digester.peek(1);
Host host = null;
if (!(parent instanceof StandardHost)) {
Method method = parent.getClass().getMethod("getHost",(Class[])null);
host = (Host) method.invoke(parent,(Object[])null);
} else {
host = (Host) parent;
}
String appBase = host.getAppBase();
boolean unpackWARs = true;
if (host instanceof StandardHost) {
unpackWARs = ((StandardHost) host).isUnpackWARs();
}
if (!unpackWARs
&& !("true".equals(attributes.getValue("unpackWAR")))) {
return;
}
if ("false".equals(attributes.getValue("unpackWAR"))) {
return;
}
File canonicalAppBase = new File(appBase);
if (canonicalAppBase.isAbsolute()) {
canonicalAppBase = canonicalAppBase.getCanonicalFile();
} else {
canonicalAppBase =
new File(System.getProperty("catalina.base"), appBase)
.getCanonicalFile();
}
String docBase = child.getDocBase();
if (docBase == null) {
// Trying to guess the docBase according to the path
String path = child.getPath();
if (path == null) {
return;
}
if (path.equals("")) {
docBase = "ROOT";
} else {
if (path.startsWith("/")) {
docBase = path.substring(1);
} else {
docBase = path;
}
}
}
File file = new File(docBase);
if (!file.isAbsolute()) {
docBase = (new File(canonicalAppBase, docBase)).getPath();
} else {
docBase = file.getCanonicalPath();
}
if (docBase.toLowerCase(Locale.ENGLISH).endsWith(".war")) {
URL war = new URL("jar:" + (new File(docBase)).toURL() + "!/");
String contextPath = child.getPath();
if (contextPath.equals("")) {
contextPath = "ROOT";
}
docBase = ExpandWar.expand(host, war, contextPath);
file = new File(docBase);
docBase = file.getCanonicalPath();
} else {
File docDir = new File(docBase);
if (!docDir.exists()) {
File warFile = new File(docBase + ".war");
if (warFile.exists()) {
URL war = new URL("jar:" + warFile.toURL() + "!/");
docBase = ExpandWar.expand(host, war, child.getPath());
file = new File(docBase);
docBase = file.getCanonicalPath();
}
}
}
if (docBase.startsWith(canonicalAppBase.getPath())) {
docBase = docBase.substring
(canonicalAppBase.getPath().length() + 1);
}
docBase = docBase.replace(File.separatorChar, '/');
child.setDocBase(docBase);
}
}