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apache / tomcat55 / 0a810a244d6f30e7222f45aee42c462392da630b / . / container / catalina / src / share / org / apache / catalina / connector / Request.java
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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.catalina.connector;
import java.io.InputStream;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.UnsupportedEncodingException;
import java.security.Principal;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
import java.util.TimeZone;
import java.util.TreeMap;
import javax.security.auth.Subject;
import javax.servlet.FilterChain;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletInputStream;
import javax.servlet.ServletRequestAttributeEvent;
import javax.servlet.ServletRequestAttributeListener;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.apache.tomcat.util.buf.B2CConverter;
import org.apache.tomcat.util.buf.MessageBytes;
import org.apache.tomcat.util.buf.StringCache;
import org.apache.tomcat.util.http.Cookies;
import org.apache.tomcat.util.http.FastHttpDateFormat;
import org.apache.tomcat.util.http.Parameters;
import org.apache.tomcat.util.http.ServerCookie;
import org.apache.tomcat.util.http.mapper.MappingData;
import org.apache.coyote.ActionCode;
import org.apache.catalina.Context;
import org.apache.catalina.Globals;
import org.apache.catalina.Host;
import org.apache.catalina.Manager;
import org.apache.catalina.Realm;
import org.apache.catalina.Session;
import org.apache.catalina.Wrapper;
import org.apache.catalina.core.ApplicationFilterFactory;
import org.apache.catalina.realm.GenericPrincipal;
import org.apache.catalina.util.Enumerator;
import org.apache.catalina.util.ParameterMap;
import org.apache.catalina.util.RequestUtil;
import org.apache.catalina.util.StringManager;
import org.apache.catalina.util.StringParser;
/**
* Wrapper object for the Coyote request.
*
* @author Remy Maucherat
* @author Craig R. McClanahan
* @version $Revision$ $Date$
*/
public class Request
implements HttpServletRequest {
// ----------------------------------------------------------- Constructors
static {
// Ensure that classes are loaded for SM
new StringCache.ByteEntry();
new StringCache.CharEntry();
}
public Request() {
formats[0].setTimeZone(GMT_ZONE);
formats[1].setTimeZone(GMT_ZONE);
formats[2].setTimeZone(GMT_ZONE);
}
// ------------------------------------------------------------- Properties
/**
* Coyote request.
*/
protected org.apache.coyote.Request coyoteRequest;
/**
* Set the Coyote request.
*
* @param coyoteRequest The Coyote request
*/
public void setCoyoteRequest(org.apache.coyote.Request coyoteRequest) {
this.coyoteRequest = coyoteRequest;
inputBuffer.setRequest(coyoteRequest);
}
/**
* Get the Coyote request.
*/
public org.apache.coyote.Request getCoyoteRequest() {
return (this.coyoteRequest);
}
// ----------------------------------------------------- Variables
protected static final TimeZone GMT_ZONE = TimeZone.getTimeZone("GMT");
/**
* The string manager for this package.
*/
protected static StringManager sm =
StringManager.getManager(Constants.Package);
/**
* The set of cookies associated with this Request.
*/
protected Cookie[] cookies = null;
/**
* The set of SimpleDateFormat formats to use in getDateHeader().
*
* Notice that because SimpleDateFormat is not thread-safe, we can't
* declare formats[] as a static variable.
*/
protected SimpleDateFormat formats[] = {
new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US),
new SimpleDateFormat("EEEEEE, dd-MMM-yy HH:mm:ss zzz", Locale.US),
new SimpleDateFormat("EEE MMMM d HH:mm:ss yyyy", Locale.US)
};
/**
* The pattern to match locale language and country components against
*/
protected static String localeRegex = "[a-zA-Z]{1,8}";
/**
* The default Locale if none are specified.
*/
protected static Locale defaultLocale = Locale.getDefault();
/**
* The attributes associated with this Request, keyed by attribute name.
*/
protected HashMap attributes = new HashMap();
/**
* List of read only attributes for this Request.
*/
private HashMap readOnlyAttributes = new HashMap();
/**
* The preferred Locales assocaited with this Request.
*/
protected ArrayList locales = new ArrayList();
/**
* Internal notes associated with this request by Catalina components
* and event listeners.
*/
private transient HashMap notes = new HashMap();
/**
* Authentication type.
*/
protected String authType = null;
/**
* The current dispatcher type.
*/
protected Object dispatcherType = null;
/**
* The associated input buffer.
*/
protected InputBuffer inputBuffer = new InputBuffer();
/**
* ServletInputStream.
*/
protected CoyoteInputStream inputStream =
new CoyoteInputStream(inputBuffer);
/**
* Reader.
*/
protected CoyoteReader reader = new CoyoteReader(inputBuffer);
/**
* Using stream flag.
*/
protected boolean usingInputStream = false;
/**
* Using writer flag.
*/
protected boolean usingReader = false;
/**
* User principal.
*/
protected Principal userPrincipal = null;
/**
* Session parsed flag.
*/
protected boolean sessionParsed = false;
/**
* Request parameters parsed flag.
*/
protected boolean parametersParsed = false;
/**
* Cookies parsed flag.
*/
protected boolean cookiesParsed = false;
/**
* Secure flag.
*/
protected boolean secure = false;
/**
* The Subject associated with the current AccessControllerContext
*/
protected transient Subject subject = null;
/**
* Post data buffer.
*/
protected static int CACHED_POST_LEN = 8192;
protected byte[] postData = null;
/**
* Hash map used in the getParametersMap method.
*/
protected ParameterMap parameterMap = new ParameterMap();
/**
* The currently active session for this request.
*/
protected Session session = null;
/**
* The current request dispatcher path.
*/
protected Object requestDispatcherPath = null;
/**
* Was the requested session ID received in a cookie?
*/
protected boolean requestedSessionCookie = false;
/**
* The requested session ID (if any) for this request.
*/
protected String requestedSessionId = null;
/**
* Was the requested session ID received in a URL?
*/
protected boolean requestedSessionURL = false;
/**
* Parse locales.
*/
protected boolean localesParsed = false;
/**
* The string parser we will use for parsing request lines.
*/
private StringParser parser = new StringParser();
/**
* Local port
*/
protected int localPort = -1;
/**
* Remote address.
*/
protected String remoteAddr = null;
/**
* Remote host.
*/
protected String remoteHost = null;
/**
* Remote port
*/
protected int remotePort = -1;
/**
* Local address
*/
protected String localAddr = null;
/**
* Local address
*/
protected String localName = null;
// --------------------------------------------------------- Public Methods
/**
* Release all object references, and initialize instance variables, in
* preparation for reuse of this object.
*/
public void recycle() {
context = null;
wrapper = null;
dispatcherType = null;
requestDispatcherPath = null;
authType = null;
inputBuffer.recycle();
usingInputStream = false;
usingReader = false;
userPrincipal = null;
subject = null;
sessionParsed = false;
parametersParsed = false;
cookiesParsed = false;
locales.clear();
localesParsed = false;
secure = false;
remoteAddr = null;
remoteHost = null;
remotePort = -1;
localPort = -1;
localAddr = null;
localName = null;
attributes.clear();
notes.clear();
cookies = null;
if (session != null) {
session.endAccess();
}
session = null;
requestedSessionCookie = false;
requestedSessionId = null;
requestedSessionURL = false;
parameterMap.setLocked(false);
parameterMap.clear();
mappingData.recycle();
if (Constants.SECURITY) {
if (facade != null) {
facade.clear();
facade = null;
}
if (inputStream != null) {
inputStream.clear();
inputStream = null;
}
if (reader != null) {
reader.clear();
reader = null;
}
}
}
// -------------------------------------------------------- Request Methods
/**
* Associated Catalina connector.
*/
protected Connector connector;
/**
* Return the Connector through which this Request was received.
*/
public Connector getConnector() {
return (this.connector);
}
/**
* Set the Connector through which this Request was received.
*
* @param connector The new connector
*/
public void setConnector(Connector connector) {
this.connector = connector;
}
/**
* Associated context.
*/
protected Context context = null;
/**
* Return the Context within which this Request is being processed.
*/
public Context getContext() {
return (this.context);
}
/**
* Set the Context within which this Request is being processed. This
* must be called as soon as the appropriate Context is identified, because
* it identifies the value to be returned by <code>getContextPath()</code>,
* and thus enables parsing of the request URI.
*
* @param context The newly associated Context
*/
public void setContext(Context context) {
this.context = context;
}
/**
* Filter chain associated with the request.
*/
protected FilterChain filterChain = null;
/**
* Get filter chain associated with the request.
*/
public FilterChain getFilterChain() {
return (this.filterChain);
}
/**
* Set filter chain associated with the request.
*
* @param filterChain new filter chain
*/
public void setFilterChain(FilterChain filterChain) {
this.filterChain = filterChain;
}
/**
* Return the Host within which this Request is being processed.
*/
public Host getHost() {
if (getContext() == null)
return null;
return (Host) getContext().getParent();
//return ((Host) mappingData.host);
}
/**
* Set the Host within which this Request is being processed. This
* must be called as soon as the appropriate Host is identified, and
* before the Request is passed to a context.
*
* @param host The newly associated Host
*/
public void setHost(Host host) {
mappingData.host = host;
}
/**
* Descriptive information about this Request implementation.
*/
protected static final String info =
"org.apache.coyote.catalina.CoyoteRequest/1.0";
/**
* Return descriptive information about this Request implementation and
* the corresponding version number, in the format
* <code>&lt;description&gt;/&lt;version&gt;</code>.
*/
public String getInfo() {
return (info);
}
/**
* Mapping data.
*/
protected MappingData mappingData = new MappingData();
/**
* Return mapping data.
*/
public MappingData getMappingData() {
return (mappingData);
}
/**
* The facade associated with this request.
*/
protected RequestFacade facade = null;
/**
* Return the <code>ServletRequest</code> for which this object
* is the facade. This method must be implemented by a subclass.
*/
public HttpServletRequest getRequest() {
if (facade == null) {
facade = new RequestFacade(this);
}
return (facade);
}
/**
* The response with which this request is associated.
*/
protected org.apache.catalina.connector.Response response = null;
/**
* Return the Response with which this Request is associated.
*/
public org.apache.catalina.connector.Response getResponse() {
return (this.response);
}
/**
* Set the Response with which this Request is associated.
*
* @param response The new associated response
*/
public void setResponse(org.apache.catalina.connector.Response response) {
this.response = response;
}
/**
* Return the input stream associated with this Request.
*/
public InputStream getStream() {
if (inputStream == null) {
inputStream = new CoyoteInputStream(inputBuffer);
}
return inputStream;
}
/**
* Set the input stream associated with this Request.
*
* @param stream The new input stream
*/
public void setStream(InputStream stream) {
// Ignore
}
/**
* URI byte to char converter (not recycled).
*/
protected B2CConverter URIConverter = null;
/**
* Return the URI converter.
*/
protected B2CConverter getURIConverter() {
return URIConverter;
}
/**
* Set the URI converter.
*
* @param URIConverter the new URI connverter
*/
protected void setURIConverter(B2CConverter URIConverter) {
this.URIConverter = URIConverter;
}
/**
* Associated wrapper.
*/
protected Wrapper wrapper = null;
/**
* Return the Wrapper within which this Request is being processed.
*/
public Wrapper getWrapper() {
return (this.wrapper);
}
/**
* Set the Wrapper within which this Request is being processed. This
* must be called as soon as the appropriate Wrapper is identified, and
* before the Request is ultimately passed to an application servlet.
* @param wrapper The newly associated Wrapper
*/
public void setWrapper(Wrapper wrapper) {
this.wrapper = wrapper;
}
// ------------------------------------------------- Request Public Methods
/**
* Create and return a ServletInputStream to read the content
* associated with this Request.
*
* @exception IOException if an input/output error occurs
*/
public ServletInputStream createInputStream()
throws IOException {
if (inputStream == null) {
inputStream = new CoyoteInputStream(inputBuffer);
}
return inputStream;
}
/**
* Perform whatever actions are required to flush and close the input
* stream or reader, in a single operation.
*
* @exception IOException if an input/output error occurs
*/
public void finishRequest() throws IOException {
// The reader and input stream don't need to be closed
}
/**
* Return the object bound with the specified name to the internal notes
* for this request, or <code>null</code> if no such binding exists.
*
* @param name Name of the note to be returned
*/
public Object getNote(String name) {
return (notes.get(name));
}
/**
* Return an Iterator containing the String names of all notes bindings
* that exist for this request.
*/
public Iterator getNoteNames() {
return (notes.keySet().iterator());
}
/**
* Remove any object bound to the specified name in the internal notes
* for this request.
*
* @param name Name of the note to be removed
*/
public void removeNote(String name) {
notes.remove(name);
}
/**
* Bind an object to a specified name in the internal notes associated
* with this request, replacing any existing binding for this name.
*
* @param name Name to which the object should be bound
* @param value Object to be bound to the specified name
*/
public void setNote(String name, Object value) {
notes.put(name, value);
}
/**
* Set the content length associated with this Request.
*
* @param length The new content length
*/
public void setContentLength(int length) {
// Not used
}
/**
* Set the content type (and optionally the character encoding)
* associated with this Request. For example,
* <code>text/html; charset=ISO-8859-4</code>.
*
* @param type The new content type
*/
public void setContentType(String type) {
// Not used
}
/**
* Set the protocol name and version associated with this Request.
*
* @param protocol Protocol name and version
*/
public void setProtocol(String protocol) {
// Not used
}
/**
* Set the IP address of the remote client associated with this Request.
*
* @param remoteAddr The remote IP address
*/
public void setRemoteAddr(String remoteAddr) {
// Not used
}
/**
* Set the fully qualified name of the remote client associated with this
* Request.
*
* @param remoteHost The remote host name
*/
public void setRemoteHost(String remoteHost) {
// Not used
}
/**
* Set the name of the scheme associated with this request. Typical values
* are <code>http</code>, <code>https</code>, and <code>ftp</code>.
*
* @param scheme The scheme
*/
public void setScheme(String scheme) {
// Not used
}
/**
* Set the value to be returned by <code>isSecure()</code>
* for this Request.
*
* @param secure The new isSecure value
*/
public void setSecure(boolean secure) {
this.secure = secure;
}
/**
* Set the name of the server (virtual host) to process this request.
*
* @param name The server name
*/
public void setServerName(String name) {
coyoteRequest.serverName().setString(name);
}
/**
* Set the port number of the server to process this request.
*
* @param port The server port
*/
public void setServerPort(int port) {
coyoteRequest.setServerPort(port);
}
// ------------------------------------------------- ServletRequest Methods
/**
* Return the specified request attribute if it exists; otherwise, return
* <code>null</code>.
*
* @param name Name of the request attribute to return
*/
public Object getAttribute(String name) {
if (name.equals(Globals.DISPATCHER_TYPE_ATTR)) {
return (dispatcherType == null)
? ApplicationFilterFactory.REQUEST_INTEGER
: dispatcherType;
} else if (name.equals(Globals.DISPATCHER_REQUEST_PATH_ATTR)) {
return (requestDispatcherPath == null)
? getRequestPathMB().toString()
: requestDispatcherPath.toString();
}
Object attr=attributes.get(name);
if(attr!=null)
return(attr);
attr = coyoteRequest.getAttribute(name);
if(attr != null)
return attr;
if( isSSLAttribute(name) ) {
coyoteRequest.action(ActionCode.ACTION_REQ_SSL_ATTRIBUTE,
coyoteRequest);
attr = coyoteRequest.getAttribute(Globals.CERTIFICATES_ATTR);
if( attr != null) {
attributes.put(Globals.CERTIFICATES_ATTR, attr);
}
attr = coyoteRequest.getAttribute(Globals.CIPHER_SUITE_ATTR);
if(attr != null) {
attributes.put(Globals.CIPHER_SUITE_ATTR, attr);
}
attr = coyoteRequest.getAttribute(Globals.KEY_SIZE_ATTR);
if(attr != null) {
attributes.put(Globals.KEY_SIZE_ATTR, attr);
}
attr = coyoteRequest.getAttribute(Globals.SSL_SESSION_ID_ATTR);
if(attr != null) {
attributes.put(Globals.SSL_SESSION_ID_ATTR, attr);
}
attr = attributes.get(name);
}
return attr;
}
/**
* Test if a given name is one of the special Servlet-spec SSL attributes.
*/
static boolean isSSLAttribute(String name) {
return Globals.CERTIFICATES_ATTR.equals(name) ||
Globals.CIPHER_SUITE_ATTR.equals(name) ||
Globals.KEY_SIZE_ATTR.equals(name) ||
Globals.SSL_SESSION_ID_ATTR.equals(name);
}
/**
* Return the names of all request attributes for this Request, or an
* empty <code>Enumeration</code> if there are none.
*/
public Enumeration getAttributeNames() {
if (isSecure()) {
getAttribute(Globals.CERTIFICATES_ATTR);
}
return new Enumerator(attributes.keySet(), true);
}
/**
* Return the character encoding for this Request.
*/
public String getCharacterEncoding() {
return (coyoteRequest.getCharacterEncoding());
}
/**
* Return the content length for this Request.
*/
public int getContentLength() {
return (coyoteRequest.getContentLength());
}
/**
* Return the content type for this Request.
*/
public String getContentType() {
return (coyoteRequest.getContentType());
}
/**
* Return the servlet input stream for this Request. The default
* implementation returns a servlet input stream created by
* <code>createInputStream()</code>.
*
* @exception IllegalStateException if <code>getReader()</code> has
* already been called for this request
* @exception IOException if an input/output error occurs
*/
public ServletInputStream getInputStream() throws IOException {
if (usingReader)
throw new IllegalStateException
(sm.getString("coyoteRequest.getInputStream.ise"));
usingInputStream = true;
if (inputStream == null) {
inputStream = new CoyoteInputStream(inputBuffer);
}
return inputStream;
}
/**
* Return the preferred Locale that the client will accept content in,
* based on the value for the first <code>Accept-Language</code> header
* that was encountered. If the request did not specify a preferred
* language, the server's default Locale is returned.
*/
public Locale getLocale() {
if (!localesParsed)
parseLocales();
if (locales.size() > 0) {
return ((Locale) locales.get(0));
} else {
return (defaultLocale);
}
}
/**
* Return the set of preferred Locales that the client will accept
* content in, based on the values for any <code>Accept-Language</code>
* headers that were encountered. If the request did not specify a
* preferred language, the server's default Locale is returned.
*/
public Enumeration getLocales() {
if (!localesParsed)
parseLocales();
if (locales.size() > 0)
return (new Enumerator(locales));
ArrayList results = new ArrayList();
results.add(defaultLocale);
return (new Enumerator(results));
}
/**
* Return the value of the specified request parameter, if any; otherwise,
* return <code>null</code>. If there is more than one value defined,
* return only the first one.
*
* @param name Name of the desired request parameter
*/
public String getParameter(String name) {
if (!parametersParsed)
parseParameters();
return coyoteRequest.getParameters().getParameter(name);
}
/**
* Returns a <code>Map</code> of the parameters of this request.
* Request parameters are extra information sent with the request.
* For HTTP servlets, parameters are contained in the query string
* or posted form data.
*
* @return A <code>Map</code> containing parameter names as keys
* and parameter values as map values.
*/
public Map getParameterMap() {
if (parameterMap.isLocked())
return parameterMap;
Enumeration enumeration = getParameterNames();
while (enumeration.hasMoreElements()) {
String name = enumeration.nextElement().toString();
String[] values = getParameterValues(name);
parameterMap.put(name, values);
}
parameterMap.setLocked(true);
return parameterMap;
}
/**
* Return the names of all defined request parameters for this request.
*/
public Enumeration getParameterNames() {
if (!parametersParsed)
parseParameters();
return coyoteRequest.getParameters().getParameterNames();
}
/**
* Return the defined values for the specified request parameter, if any;
* otherwise, return <code>null</code>.
*
* @param name Name of the desired request parameter
*/
public String[] getParameterValues(String name) {
if (!parametersParsed)
parseParameters();
return coyoteRequest.getParameters().getParameterValues(name);
}
/**
* Return the protocol and version used to make this Request.
*/
public String getProtocol() {
return coyoteRequest.protocol().toString();
}
/**
* Read the Reader wrapping the input stream for this Request. The
* default implementation wraps a <code>BufferedReader</code> around the
* servlet input stream returned by <code>createInputStream()</code>.
*
* @exception IllegalStateException if <code>getInputStream()</code>
* has already been called for this request
* @exception IOException if an input/output error occurs
*/
public BufferedReader getReader() throws IOException {
if (usingInputStream)
throw new IllegalStateException
(sm.getString("coyoteRequest.getReader.ise"));
usingReader = true;
inputBuffer.checkConverter();
if (reader == null) {
reader = new CoyoteReader(inputBuffer);
}
return reader;
}
/**
* Return the real path of the specified virtual path.
*
* @param path Path to be translated
*
* @deprecated As of version 2.1 of the Java Servlet API, use
* <code>ServletContext.getRealPath()</code>.
*/
public String getRealPath(String path) {
if (context == null)
return (null);
ServletContext servletContext = context.getServletContext();
if (servletContext == null)
return (null);
else {
try {
return (servletContext.getRealPath(path));
} catch (IllegalArgumentException e) {
return (null);
}
}
}
/**
* Return the remote IP address making this Request.
*/
public String getRemoteAddr() {
if (remoteAddr == null) {
coyoteRequest.action
(ActionCode.ACTION_REQ_HOST_ADDR_ATTRIBUTE, coyoteRequest);
remoteAddr = coyoteRequest.remoteAddr().toString();
}
return remoteAddr;
}
/**
* Return the remote host name making this Request.
*/
public String getRemoteHost() {
if (remoteHost == null) {
if (!connector.getEnableLookups()) {
remoteHost = getRemoteAddr();
} else {
coyoteRequest.action
(ActionCode.ACTION_REQ_HOST_ATTRIBUTE, coyoteRequest);
remoteHost = coyoteRequest.remoteHost().toString();
}
}
return remoteHost;
}
/**
* Returns the Internet Protocol (IP) source port of the client
* or last proxy that sent the request.
*/
public int getRemotePort(){
if (remotePort == -1) {
coyoteRequest.action
(ActionCode.ACTION_REQ_REMOTEPORT_ATTRIBUTE, coyoteRequest);
remotePort = coyoteRequest.getRemotePort();
}
return remotePort;
}
/**
* Returns the host name of the Internet Protocol (IP) interface on
* which the request was received.
*/
public String getLocalName(){
if (localName == null) {
coyoteRequest.action
(ActionCode.ACTION_REQ_LOCAL_NAME_ATTRIBUTE, coyoteRequest);
localName = coyoteRequest.localName().toString();
}
return localName;
}
/**
* Returns the Internet Protocol (IP) address of the interface on
* which the request was received.
*/
public String getLocalAddr(){
if (localAddr == null) {
coyoteRequest.action
(ActionCode.ACTION_REQ_LOCAL_ADDR_ATTRIBUTE, coyoteRequest);
localAddr = coyoteRequest.localAddr().toString();
}
return localAddr;
}
/**
* Returns the Internet Protocol (IP) port number of the interface
* on which the request was received.
*/
public int getLocalPort(){
if (localPort == -1){
coyoteRequest.action
(ActionCode.ACTION_REQ_LOCALPORT_ATTRIBUTE, coyoteRequest);
localPort = coyoteRequest.getLocalPort();
}
return localPort;
}
/**
* Return a RequestDispatcher that wraps the resource at the specified
* path, which may be interpreted as relative to the current request path.
*
* @param path Path of the resource to be wrapped
*/
public RequestDispatcher getRequestDispatcher(String path) {
if (context == null)
return (null);
// If the path is already context-relative, just pass it through
if (path == null)
return (null);
else if (path.startsWith("/"))
return (context.getServletContext().getRequestDispatcher(path));
// Convert a request-relative path to a context-relative one
String servletPath = (String) getAttribute(Globals.INCLUDE_SERVLET_PATH_ATTR);
if (servletPath == null)
servletPath = getServletPath();
// Add the path info, if there is any
String pathInfo = getPathInfo();
String requestPath = null;
if (pathInfo == null) {
requestPath = servletPath;
} else {
requestPath = servletPath + pathInfo;
}
int pos = requestPath.lastIndexOf('/');
String relative = null;
if (pos >= 0) {
relative = RequestUtil.normalize
(requestPath.substring(0, pos + 1) + path);
} else {
relative = RequestUtil.normalize(requestPath + path);
}
return (context.getServletContext().getRequestDispatcher(relative));
}
/**
* Return the scheme used to make this Request.
*/
public String getScheme() {
return (coyoteRequest.scheme().toString());
}
/**
* Return the server name responding to this Request.
*/
public String getServerName() {
return (coyoteRequest.serverName().toString());
}
/**
* Return the server port responding to this Request.
*/
public int getServerPort() {
return (coyoteRequest.getServerPort());
}
/**
* Was this request received on a secure connection?
*/
public boolean isSecure() {
return (secure);
}
/**
* Remove the specified request attribute if it exists.
*
* @param name Name of the request attribute to remove
*/
public void removeAttribute(String name) {
Object value = null;
boolean found = false;
// Remove the specified attribute
// Check for read only attribute
// requests are per thread so synchronization unnecessary
if (readOnlyAttributes.containsKey(name)) {
return;
}
found = attributes.containsKey(name);
if (found) {
value = attributes.get(name);
attributes.remove(name);
} else {
return;
}
// Notify interested application event listeners
Object listeners[] = context.getApplicationEventListeners();
if ((listeners == null) || (listeners.length == 0))
return;
ServletRequestAttributeEvent event =
new ServletRequestAttributeEvent(context.getServletContext(),
getRequest(), name, value);
for (int i = 0; i < listeners.length; i++) {
if (!(listeners[i] instanceof ServletRequestAttributeListener))
continue;
ServletRequestAttributeListener listener =
(ServletRequestAttributeListener) listeners[i];
try {
listener.attributeRemoved(event);
} catch (Throwable t) {
context.getLogger().error(sm.getString("coyoteRequest.attributeEvent"), t);
// Error valve will pick this execption up and display it to user
attributes.put( Globals.EXCEPTION_ATTR, t );
}
}
}
/**
* Set the specified request attribute to the specified value.
*
* @param name Name of the request attribute to set
* @param value The associated value
*/
public void setAttribute(String name, Object value) {
// Name cannot be null
if (name == null)
throw new IllegalArgumentException
(sm.getString("coyoteRequest.setAttribute.namenull"));
// Null value is the same as removeAttribute()
if (value == null) {
removeAttribute(name);
return;
}
if (name.equals(Globals.DISPATCHER_TYPE_ATTR)) {
dispatcherType = value;
return;
} else if (name.equals(Globals.DISPATCHER_REQUEST_PATH_ATTR)) {
requestDispatcherPath = value;
return;
}
Object oldValue = null;
boolean replaced = false;
// Add or replace the specified attribute
// Check for read only attribute
// requests are per thread so synchronization unnecessary
if (readOnlyAttributes.containsKey(name)) {
return;
}
oldValue = attributes.put(name, value);
if (oldValue != null) {
replaced = true;
}
// Pass special attributes to the native layer
if (name.startsWith("org.apache.tomcat.")) {
coyoteRequest.setAttribute(name, value);
}
// Notify interested application event listeners
Object listeners[] = context.getApplicationEventListeners();
if ((listeners == null) || (listeners.length == 0))
return;
ServletRequestAttributeEvent event = null;
if (replaced)
event =
new ServletRequestAttributeEvent(context.getServletContext(),
getRequest(), name, oldValue);
else
event =
new ServletRequestAttributeEvent(context.getServletContext(),
getRequest(), name, value);
for (int i = 0; i < listeners.length; i++) {
if (!(listeners[i] instanceof ServletRequestAttributeListener))
continue;
ServletRequestAttributeListener listener =
(ServletRequestAttributeListener) listeners[i];
try {
if (replaced) {
listener.attributeReplaced(event);
} else {
listener.attributeAdded(event);
}
} catch (Throwable t) {
context.getLogger().error(sm.getString("coyoteRequest.attributeEvent"), t);
// Error valve will pick this execption up and display it to user
attributes.put( Globals.EXCEPTION_ATTR, t );
}
}
}
/**
* Overrides the name of the character encoding used in the body of
* this request. This method must be called prior to reading request
* parameters or reading input using <code>getReader()</code>.
*
* @param enc The character encoding to be used
*
* @exception UnsupportedEncodingException if the specified encoding
* is not supported
*
* @since Servlet 2.3
*/
public void setCharacterEncoding(String enc)
throws UnsupportedEncodingException {
// Ensure that the specified encoding is valid
byte buffer[] = new byte[1];
buffer[0] = (byte) 'a';
String dummy = new String(buffer, enc);
// Save the validated encoding
coyoteRequest.setCharacterEncoding(enc);
}
// ---------------------------------------------------- HttpRequest Methods
/**
* Add a Cookie to the set of Cookies associated with this Request.
*
* @param cookie The new cookie
*/
public void addCookie(Cookie cookie) {
if (!cookiesParsed)
parseCookies();
int size = 0;
if (cookies != null) {
size = cookies.length;
}
Cookie[] newCookies = new Cookie[size + 1];
for (int i = 0; i < size; i++) {
newCookies[i] = cookies[i];
}
newCookies[size] = cookie;
cookies = newCookies;
}
/**
* Add a Header to the set of Headers associated with this Request.
*
* @param name The new header name
* @param value The new header value
*/
public void addHeader(String name, String value) {
// Not used
}
/**
* Add a Locale to the set of preferred Locales for this Request. The
* first added Locale will be the first one returned by getLocales().
*
* @param locale The new preferred Locale
*/
public void addLocale(Locale locale) {
locales.add(locale);
}
/**
* Add a parameter name and corresponding set of values to this Request.
* (This is used when restoring the original request on a form based
* login).
*
* @param name Name of this request parameter
* @param values Corresponding values for this request parameter
*/
public void addParameter(String name, String values[]) {
coyoteRequest.getParameters().addParameterValues(name, values);
}
/**
* Clear the collection of Cookies associated with this Request.
*/
public void clearCookies() {
cookiesParsed = true;
cookies = null;
}
/**
* Clear the collection of Headers associated with this Request.
*/
public void clearHeaders() {
// Not used
}
/**
* Clear the collection of Locales associated with this Request.
*/
public void clearLocales() {
locales.clear();
}
/**
* Clear the collection of parameters associated with this Request.
*/
public void clearParameters() {
// Not used
}
/**
* Set the authentication type used for this request, if any; otherwise
* set the type to <code>null</code>. Typical values are "BASIC",
* "DIGEST", or "SSL".
*
* @param type The authentication type used
*/
public void setAuthType(String type) {
this.authType = type;
}
/**
* Set the context path for this Request. This will normally be called
* when the associated Context is mapping the Request to a particular
* Wrapper.
*
* @param path The context path
*/
public void setContextPath(String path) {
if (path == null) {
mappingData.contextPath.setString("");
} else {
mappingData.contextPath.setString(path);
}
}
/**
* Set the HTTP request method used for this Request.
*
* @param method The request method
*/
public void setMethod(String method) {
// Not used
}
/**
* Set the query string for this Request. This will normally be called
* by the HTTP Connector, when it parses the request headers.
*
* @param query The query string
*/
public void setQueryString(String query) {
// Not used
}
/**
* Set the path information for this Request. This will normally be called
* when the associated Context is mapping the Request to a particular
* Wrapper.
*
* @param path The path information
*/
public void setPathInfo(String path) {
mappingData.pathInfo.setString(path);
}
/**
* Set a flag indicating whether or not the requested session ID for this
* request came in through a cookie. This is normally called by the
* HTTP Connector, when it parses the request headers.
*
* @param flag The new flag
*/
public void setRequestedSessionCookie(boolean flag) {
this.requestedSessionCookie = flag;
}
/**
* Set the requested session ID for this request. This is normally called
* by the HTTP Connector, when it parses the request headers.
*
* @param id The new session id
*/
public void setRequestedSessionId(String id) {
this.requestedSessionId = id;
}
/**
* Set a flag indicating whether or not the requested session ID for this
* request came in through a URL. This is normally called by the
* HTTP Connector, when it parses the request headers.
*
* @param flag The new flag
*/
public void setRequestedSessionURL(boolean flag) {
this.requestedSessionURL = flag;
}
/**
* Set the unparsed request URI for this Request. This will normally be
* called by the HTTP Connector, when it parses the request headers.
*
* @param uri The request URI
*/
public void setRequestURI(String uri) {
// Not used
}
/**
* Set the decoded request URI.
*
* @param uri The decoded request URI
*/
public void setDecodedRequestURI(String uri) {
// Not used
}
/**
* Get the decoded request URI.
*
* @return the URL decoded request URI
*/
public String getDecodedRequestURI() {
return (coyoteRequest.decodedURI().toString());
}
/**
* Get the decoded request URI.
*
* @return the URL decoded request URI
*/
public MessageBytes getDecodedRequestURIMB() {
return (coyoteRequest.decodedURI());
}
/**
* Set the servlet path for this Request. This will normally be called
* when the associated Context is mapping the Request to a particular
* Wrapper.
*
* @param path The servlet path
*/
public void setServletPath(String path) {
if (path != null)
mappingData.wrapperPath.setString(path);
}
/**
* Set the Principal who has been authenticated for this Request. This
* value is also used to calculate the value to be returned by the
* <code>getRemoteUser()</code> method.
*
* @param principal The user Principal
*/
public void setUserPrincipal(Principal principal) {
if (System.getSecurityManager() != null){
HttpSession session = getSession(false);
if ( (subject != null) &&
(!subject.getPrincipals().contains(principal)) ){
subject.getPrincipals().add(principal);
} else if (session != null &&
session.getAttribute(Globals.SUBJECT_ATTR) == null) {
subject = new Subject();
subject.getPrincipals().add(principal);
}
if (session != null){
session.setAttribute(Globals.SUBJECT_ATTR, subject);
}
}
this.userPrincipal = principal;
}
// --------------------------------------------- HttpServletRequest Methods
/**
* Return the authentication type used for this Request.
*/
public String getAuthType() {
return (authType);
}
/**
* Return the portion of the request URI used to select the Context
* of the Request.
*/
public String getContextPath() {
return (mappingData.contextPath.toString());
}
/**
* Get the context path.
*
* @return the context path
*/
public MessageBytes getContextPathMB() {
return (mappingData.contextPath);
}
/**
* Return the set of Cookies received with this Request.
*/
public Cookie[] getCookies() {
if (!cookiesParsed)
parseCookies();
return cookies;
}
/**
* Set the set of cookies recieved with this Request.
*/
public void setCookies(Cookie[] cookies) {
this.cookies = cookies;
}
/**
* Return the value of the specified date header, if any; otherwise
* return -1.
*
* @param name Name of the requested date header
*
* @exception IllegalArgumentException if the specified header value
* cannot be converted to a date
*/
public long getDateHeader(String name) {
String value = getHeader(name);
if (value == null)
return (-1L);
// Attempt to convert the date header in a variety of formats
long result = FastHttpDateFormat.parseDate(value, formats);
if (result != (-1L)) {
return result;
}
throw new IllegalArgumentException(value);
}
/**
* Return the first value of the specified header, if any; otherwise,
* return <code>null</code>
*
* @param name Name of the requested header
*/
public String getHeader(String name) {
return coyoteRequest.getHeader(name);
}
/**
* Return all of the values of the specified header, if any; otherwise,
* return an empty enumeration.
*
* @param name Name of the requested header
*/
public Enumeration getHeaders(String name) {
return coyoteRequest.getMimeHeaders().values(name);
}
/**
* Return the names of all headers received with this request.
*/
public Enumeration getHeaderNames() {
return coyoteRequest.getMimeHeaders().names();
}
/**
* Return the value of the specified header as an integer, or -1 if there
* is no such header for this request.
*
* @param name Name of the requested header
*
* @exception IllegalArgumentException if the specified header value
* cannot be converted to an integer
*/
public int getIntHeader(String name) {
String value = getHeader(name);
if (value == null) {
return (-1);
} else {
return (Integer.parseInt(value));
}
}
/**
* Return the HTTP request method used in this Request.
*/
public String getMethod() {
return coyoteRequest.method().toString();
}
/**
* Return the path information associated with this Request.
*/
public String getPathInfo() {
return (mappingData.pathInfo.toString());
}
/**
* Get the path info.
*
* @return the path info
*/
public MessageBytes getPathInfoMB() {
return (mappingData.pathInfo);
}
/**
* Return the extra path information for this request, translated
* to a real path.
*/
public String getPathTranslated() {
if (context == null)
return (null);
if (getPathInfo() == null) {
return (null);
} else {
return (context.getServletContext().getRealPath(getPathInfo()));
}
}
/**
* Return the query string associated with this request.
*/
public String getQueryString() {
String queryString = coyoteRequest.queryString().toString();
if (queryString == null || queryString.equals("")) {
return (null);
} else {
return queryString;
}
}
/**
* Return the name of the remote user that has been authenticated
* for this Request.
*/
public String getRemoteUser() {
if (userPrincipal != null) {
return (userPrincipal.getName());
} else {
return (null);
}
}
/**
* Get the request path.
*
* @return the request path
*/
public MessageBytes getRequestPathMB() {
return (mappingData.requestPath);
}
/**
* Return the session identifier included in this request, if any.
*/
public String getRequestedSessionId() {
return (requestedSessionId);
}
/**
* Return the request URI for this request.
*/
public String getRequestURI() {
return coyoteRequest.requestURI().toString();
}
/**
* Reconstructs the URL the client used to make the request.
* The returned URL contains a protocol, server name, port
* number, and server path, but it does not include query
* string parameters.
* <p>
* Because this method returns a <code>StringBuffer</code>,
* not a <code>String</code>, you can modify the URL easily,
* for example, to append query parameters.
* <p>
* This method is useful for creating redirect messages and
* for reporting errors.
*
* @return A <code>StringBuffer</code> object containing the
* reconstructed URL
*/
public StringBuffer getRequestURL() {
StringBuffer url = new StringBuffer();
String scheme = getScheme();
int port = getServerPort();
if (port < 0)
port = 80; // Work around java.net.URL bug
url.append(scheme);
url.append("://");
url.append(getServerName());
if ((scheme.equals("http") && (port != 80))
|| (scheme.equals("https") && (port != 443))) {
url.append(':');
url.append(port);
}
url.append(getRequestURI());
return (url);
}
/**
* Return the portion of the request URI used to select the servlet
* that will process this request.
*/
public String getServletPath() {
return (mappingData.wrapperPath.toString());
}
/**
* Get the servlet path.
*
* @return the servlet path
*/
public MessageBytes getServletPathMB() {
return (mappingData.wrapperPath);
}
/**
* Return the session associated with this Request, creating one
* if necessary.
*/
public HttpSession getSession() {
Session session = doGetSession(true);
if (session != null) {
return session.getSession();
} else {
return null;
}
}
/**
* Return the session associated with this Request, creating one
* if necessary and requested.
*
* @param create Create a new session if one does not exist
*/
public HttpSession getSession(boolean create) {
Session session = doGetSession(create);
if (session != null) {
return session.getSession();
} else {
return null;
}
}
/**
* Return <code>true</code> if the session identifier included in this
* request came from a cookie.
*/
public boolean isRequestedSessionIdFromCookie() {
if (requestedSessionId != null)
return (requestedSessionCookie);
else
return (false);
}
/**
* Return <code>true</code> if the session identifier included in this
* request came from the request URI.
*/
public boolean isRequestedSessionIdFromURL() {
if (requestedSessionId != null)
return (requestedSessionURL);
else
return (false);
}
/**
* Return <code>true</code> if the session identifier included in this
* request came from the request URI.
*
* @deprecated As of Version 2.1 of the Java Servlet API, use
* <code>isRequestedSessionIdFromURL()</code> instead.
*/
public boolean isRequestedSessionIdFromUrl() {
return (isRequestedSessionIdFromURL());
}
/**
* Return <code>true</code> if the session identifier included in this
* request identifies a valid session.
*/
public boolean isRequestedSessionIdValid() {
if (requestedSessionId == null)
return (false);
if (context == null)
return (false);
Manager manager = context.getManager();
if (manager == null)
return (false);
Session session = null;
try {
session = manager.findSession(requestedSessionId);
} catch (IOException e) {
session = null;
}
if ((session != null) && session.isValid())
return (true);
else
return (false);
}
/**
* Return <code>true</code> if the authenticated user principal
* possesses the specified role name.
*
* @param role Role name to be validated
*/
public boolean isUserInRole(String role) {
// Have we got an authenticated principal at all?
if (userPrincipal == null)
return (false);
// Identify the Realm we will use for checking role assignmenets
if (context == null)
return (false);
Realm realm = context.getRealm();
if (realm == null)
return (false);
// Check for a role alias defined in a <security-role-ref> element
if (wrapper != null) {
String realRole = wrapper.findSecurityReference(role);
if ((realRole != null) &&
realm.hasRole(userPrincipal, realRole))
return (true);
}
// Check for a role defined directly as a <security-role>
return (realm.hasRole(userPrincipal, role));
}
/**
* Return the principal that has been authenticated for this Request.
*/
public Principal getPrincipal() {
return (userPrincipal);
}
/**
* Return the principal that has been authenticated for this Request.
*/
public Principal getUserPrincipal() {
if (userPrincipal instanceof GenericPrincipal) {
return ((GenericPrincipal) userPrincipal).getUserPrincipal();
} else {
return (userPrincipal);
}
}
/**
* Return the session associated with this Request, creating one
* if necessary.
*/
public Session getSessionInternal() {
return doGetSession(true);
}
/**
* Return the session associated with this Request, creating one
* if necessary and requested.
*
* @param create Create a new session if one does not exist
*/
public Session getSessionInternal(boolean create) {
return doGetSession(create);
}
// ------------------------------------------------------ Protected Methods
protected Session doGetSession(boolean create) {
// There cannot be a session if no context has been assigned yet
if (context == null)
return (null);
// Return the current session if it exists and is valid
if ((session != null) && !session.isValid())
session = null;
if (session != null)
return (session);
// Return the requested session if it exists and is valid
Manager manager = null;
if (context != null)
manager = context.getManager();
if (manager == null)
return (null); // Sessions are not supported
if (requestedSessionId != null) {
try {
session = manager.findSession(requestedSessionId);
} catch (IOException e) {
session = null;
}
if ((session != null) && !session.isValid())
session = null;
if (session != null) {
session.access();
return (session);
}
}
// Create a new session if requested and the response is not committed
if (!create)
return (null);
if ((context != null) && (response != null) &&
context.getCookies() &&
response.getResponse().isCommitted()) {
throw new IllegalStateException
(sm.getString("coyoteRequest.sessionCreateCommitted"));
}
// Attempt to reuse session id if one was submitted in a cookie
// Do not reuse the session id if it is from a URL, to prevent possible
// phishing attacks
if (connector.getEmptySessionPath()
&& isRequestedSessionIdFromCookie()) {
session = manager.createSession(getRequestedSessionId());
} else {
session = manager.createSession(null);
}
// Creating a new session cookie based on that session
if ((session != null) && (getContext() != null)
&& getContext().getCookies()) {
Cookie cookie = new Cookie(Globals.SESSION_COOKIE_NAME,
session.getIdInternal());
configureSessionCookie(cookie);
response.addCookie(cookie);
}
if (session != null) {
session.access();
return (session);
} else {
return (null);
}
}
/**
* Configures the given JSESSIONID cookie.
*
* @param cookie The JSESSIONID cookie to be configured
*/
protected void configureSessionCookie(Cookie cookie) {
cookie.setMaxAge(-1);
String contextPath = null;
if (!connector.getEmptySessionPath() && (getContext() != null)) {
contextPath = getContext().getEncodedPath();
}
if ((contextPath != null) && (contextPath.length() > 0)) {
cookie.setPath(contextPath);
} else {
cookie.setPath("/");
}
if (isSecure()) {
cookie.setSecure(true);
}
}
/**
* Parse cookies.
*/
protected void parseCookies() {
cookiesParsed = true;
Cookies serverCookies = coyoteRequest.getCookies();
int count = serverCookies.getCookieCount();
if (count <= 0)
return;
cookies = new Cookie[count];
int idx=0;
for (int i = 0; i < count; i++) {
ServerCookie scookie = serverCookies.getCookie(i);
try {
Cookie cookie = new Cookie(scookie.getName().toString(),
scookie.getValue().toString());
cookie.setPath(scookie.getPath().toString());
cookie.setVersion(scookie.getVersion());
String domain = scookie.getDomain().toString();
if (domain != null) {
cookie.setDomain(scookie.getDomain().toString());
}
cookies[idx++] = cookie;
} catch(IllegalArgumentException e) {
// Ignore bad cookie
}
}
if( idx < count ) {
Cookie [] ncookies = new Cookie[idx];
System.arraycopy(cookies, 0, ncookies, 0, idx);
cookies = ncookies;
}
}
/**
* Parse request parameters.
*/
protected void parseParameters() {
parametersParsed = true;
Parameters parameters = coyoteRequest.getParameters();
// getCharacterEncoding() may have been overridden to search for
// hidden form field containing request encoding
String enc = getCharacterEncoding();
boolean useBodyEncodingForURI = connector.getUseBodyEncodingForURI();
if (enc != null) {
parameters.setEncoding(enc);
if (useBodyEncodingForURI) {
parameters.setQueryStringEncoding(enc);
}
} else {
parameters.setEncoding
(org.apache.coyote.Constants.DEFAULT_CHARACTER_ENCODING);
if (useBodyEncodingForURI) {
parameters.setQueryStringEncoding
(org.apache.coyote.Constants.DEFAULT_CHARACTER_ENCODING);
}
}
parameters.handleQueryParameters();
if (usingInputStream || usingReader)
return;
if (!getMethod().equalsIgnoreCase("POST"))
return;
String contentType = getContentType();
if (contentType == null)
contentType = "";
int semicolon = contentType.indexOf(';');
if (semicolon >= 0) {
contentType = contentType.substring(0, semicolon).trim();
} else {
contentType = contentType.trim();
}
if (!("application/x-www-form-urlencoded".equals(contentType)))
return;
int len = getContentLength();
if (len > 0) {
int maxPostSize = connector.getMaxPostSize();
if ((maxPostSize > 0) && (len > maxPostSize)) {
context.getLogger().info
(sm.getString("coyoteRequest.postTooLarge"));
throw new IllegalStateException("Post too large");
}
try {
byte[] formData = null;
if (len < CACHED_POST_LEN) {
if (postData == null)
postData = new byte[CACHED_POST_LEN];
formData = postData;
} else {
formData = new byte[len];
}
int actualLen = readPostBody(formData, len);
if (actualLen == len) {
parameters.processParameters(formData, 0, len);
}
} catch (Throwable t) {
context.getLogger().warn
(sm.getString("coyoteRequest.parseParameters"), t);
}
}
}
/**
* Read post body in an array.
*/
protected int readPostBody(byte body[], int len)
throws IOException {
int offset = 0;
do {
int inputLen = getStream().read(body, offset, len - offset);
if (inputLen <= 0) {
return offset;
}
offset += inputLen;
} while ((len - offset) > 0);
return len;
}
/**
* Parse request locales.
*/
protected void parseLocales() {
localesParsed = true;
Enumeration values = getHeaders("accept-language");
while (values.hasMoreElements()) {
String value = values.nextElement().toString();
parseLocalesHeader(value);
}
}
/**
* Parse accept-language header value.
*/
protected void parseLocalesHeader(String value) {
// Store the accumulated languages that have been requested in
// a local collection, sorted by the quality value (so we can
// add Locales in descending order). The values will be ArrayLists
// containing the corresponding Locales to be added
TreeMap locales = new TreeMap();
// Preprocess the value to remove all whitespace
int white = value.indexOf(' ');
if (white < 0)
white = value.indexOf('\t');
if (white >= 0) {
StringBuffer sb = new StringBuffer();
int len = value.length();
for (int i = 0; i < len; i++) {
char ch = value.charAt(i);
if ((ch != ' ') && (ch != '\t'))
sb.append(ch);
}
value = sb.toString();
}
// Process each comma-delimited language specification
parser.setString(value); // ASSERT: parser is available to us
int length = parser.getLength();
while (true) {
// Extract the next comma-delimited entry
int start = parser.getIndex();
if (start >= length)
break;
int end = parser.findChar(',');
String entry = parser.extract(start, end).trim();
parser.advance(); // For the following entry
// Extract the quality factor for this entry
double quality = 1.0;
int semi = entry.indexOf(";q=");
if (semi >= 0) {
try {
quality = Double.parseDouble(entry.substring(semi + 3));
} catch (NumberFormatException e) {
quality = 0.0;
}
entry = entry.substring(0, semi);
}
// Skip entries we are not going to keep track of
if (quality < 0.00005)
continue; // Zero (or effectively zero) quality factors
if ("*".equals(entry))
continue; // FIXME - "*" entries are not handled
// Extract the language and country for this entry
String language = null;
String country = null;
String variant = null;
int dash = entry.indexOf('-');
if (dash < 0) {
language = entry;
country = "";
variant = "";
} else {
language = entry.substring(0, dash);
country = entry.substring(dash + 1);
int vDash = country.indexOf('-');
if (vDash > 0) {
String cTemp = country.substring(0, vDash);
variant = country.substring(vDash + 1);
country = cTemp;
} else {
variant = "";
}
}
if (!isAlpha(language) || !isAlpha(country) || !isAlpha(variant)) {
continue;
}
// Add a new Locale to the list of Locales for this quality level
Locale locale = new Locale(language, country, variant);
Double key = new Double(-quality); // Reverse the order
ArrayList values = (ArrayList) locales.get(key);
if (values == null) {
values = new ArrayList();
locales.put(key, values);
}
values.add(locale);
}
// Process the quality values in highest->lowest order (due to
// negating the Double value when creating the key)
Iterator keys = locales.keySet().iterator();
while (keys.hasNext()) {
Double key = (Double) keys.next();
ArrayList list = (ArrayList) locales.get(key);
Iterator values = list.iterator();
while (values.hasNext()) {
Locale locale = (Locale) values.next();
addLocale(locale);
}
}
}
protected static final boolean isAlpha(String value) {
for (int i = 0; i < value.length(); i++) {
char c = value.charAt(i);
if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))) {
return false;
}
}
return true;
}
}