/*
* $Header: /home/cvs/jakarta-commons/httpclient/src/java/org/apache/commons/httpclient/HttpState.java,v 1.33 2004/05/13 04:03:25 mbecke Exp $
* $Revision: 1.33 $
* $Date: 2004/05/13 04:03:25 $
*
* ====================================================================
*
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.commons.httpclient;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.List;
import java.util.Iterator;
import org.apache.commons.httpclient.cookie.CookieSpec;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.auth.HttpAuthRealm;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* <p>
* A container for HTTP attributes that may persist from request
* to request, such as {@link Cookie cookies} and authentication
* {@link Credentials credentials}.
* </p>
* <p>
* Preemptive authentication can be turned on by using the property value of
* #PREEMPTIVE_PROPERTY. If left unspecified, it has the default value of
* #PREEMPTIVE_DEFAULT. This configurable behaviour conforms to rcf2617:
* </p>
*
* @author <a href="mailto:remm@apache.org">Remy Maucherat</a>
* @author Rodney Waldhoff
* @author <a href="mailto:jsdever@apache.org">Jeff Dever</a>
* @author Sean C. Sullivan
* @author <a href="mailto:becke@u.washington.edu">Michael Becke</a>
* @author <a href="mailto:oleg@ural.ru">Oleg Kalnichevski</a>
* @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
* @author <a href="mailto:adrian@intencha.com">Adrian Sutton</a>
*
* @version $Revision: 1.33 $ $Date: 2004/05/13 04:03:25 $
*
*/
public class HttpState {
// ----------------------------------------------------- Instance Variables
/**
* Map of {@link Credentials credentials} by realm that this
* HTTP state contains.
*/
private HashMap credMap = new HashMap();
/**
* Map of {@link Credentials proxy credentials} by realm that this
* HTTP state contains
*/
private HashMap proxyCred = new HashMap();
/**
* Array of {@link Cookie cookies} that this HTTP state contains.
*/
private ArrayList cookies = new ArrayList();
private boolean preemptive = false;
private int cookiePolicy = 0;
// -------------------------------------------------------- Class Variables
/** Log object for this class. */
private static final Log LOG = LogFactory.getLog(HttpState.class);
/**
* Default constructor.
*/
public HttpState() {
super();
}
// ------------------------------------------------------------- Properties
/**
* Adds an {@link Cookie HTTP cookie}, replacing any existing equivalent cookies.
* If the given cookie has already expired it will not be added, but existing
* values will still be removed.
*
* @param cookie the {@link Cookie cookie} to be added
*
* @see #addCookies(Cookie[])
*
*/
public synchronized void addCookie(Cookie cookie) {
LOG.trace("enter HttpState.addCookie(Cookie)");
if (cookie != null) {
// first remove any old cookie that is equivalent
for (Iterator it = cookies.iterator(); it.hasNext();) {
Cookie tmp = (Cookie) it.next();
if (cookie.equals(tmp)) {
it.remove();
break;
}
}
if (!cookie.isExpired()) {
cookies.add(cookie);
}
}
}
/**
* Adds an array of {@link Cookie HTTP cookies}. Cookies are added individually and
* in the given array order. If any of the given cookies has already expired it will
* not be added, but existing values will still be removed.
*
* @param cookies the {@link Cookie cookies} to be added
*
* @see #addCookie(Cookie)
*
*
*/
public synchronized void addCookies(Cookie[] cookies) {
LOG.trace("enter HttpState.addCookies(Cookie[])");
if (cookies != null) {
for (int i = 0; i < cookies.length; i++) {
this.addCookie(cookies[i]);
}
}
}
/**
* Returns an array of {@link Cookie cookies} that this HTTP
* state currently contains.
*
* @return an array of {@link Cookie cookies}.
*
* @see #getCookies(String, int, String, boolean)
*
*/
public synchronized Cookie[] getCookies() {
LOG.trace("enter HttpState.getCookies()");
return (Cookie[]) (cookies.toArray(new Cookie[cookies.size()]));
}
/**
* Returns an array of {@link Cookie cookies} in this HTTP
* state that match the given request parameters.
*
* @param domain the request domain
* @param port the request port
* @param path the request path
* @param secure <code>true</code> when using HTTPS
*
* @return an array of {@link Cookie cookies}.
*
* @see #getCookies()
*
* @deprecated use CookieSpec#match(String, int, String, boolean, Cookie)
*/
public synchronized Cookie[] getCookies(
String domain,
int port,
String path,
boolean secure
) {
LOG.trace("enter HttpState.getCookies(String, int, String, boolean)");
CookieSpec matcher = CookiePolicy.getDefaultSpec();
ArrayList list = new ArrayList(cookies.size());
for (int i = 0, m = cookies.size(); i < m; i++) {
Cookie cookie = (Cookie) (cookies.get(i));
if (matcher.match(domain, port, path, secure, cookie)) {
list.add(cookie);
}
}
return (Cookie[]) (list.toArray(new Cookie[list.size()]));
}
/**
* Removes all of {@link Cookie cookies} in this HTTP state
* that have expired according to the current system time.
*
* @see #purgeExpiredCookies(java.util.Date)
*
*/
public synchronized boolean purgeExpiredCookies() {
LOG.trace("enter HttpState.purgeExpiredCookies()");
return purgeExpiredCookies(new Date());
}
/**
* Removes all of {@link Cookie cookies} in this HTTP state
* that have expired by the specified {@link java.util.Date date}.
*
* @param date The {@link java.util.Date date} to compare against.
*
* @return true if any cookies were purged.
*
* @see Cookie#isExpired(java.util.Date)
*
* @see #purgeExpiredCookies()
*/
public synchronized boolean purgeExpiredCookies(Date date) {
LOG.trace("enter HttpState.purgeExpiredCookies(Date)");
boolean removed = false;
Iterator it = cookies.iterator();
while (it.hasNext()) {
if (((Cookie) (it.next())).isExpired(date)) {
it.remove();
removed = true;
}
}
return removed;
}
/**
* Returns the current {@link CookiePolicy cookie policy} for this
* HTTP state.
*
* @return The {@link CookiePolicy cookie policy}.
*
* @deprecated Use
* {@link org.apache.commons.httpclient.params.HttpMethodParams#getCookiePolicy()},
* {@link HttpMethod#getParams()}.
*/
public int getCookiePolicy() {
return CookiePolicy.getDefaultPolicy();
}
/**
* Defines whether preemptive authentication should be
* attempted.
*
* @param value <tt>true</tt> if preemptive authentication should be
* attempted, <tt>false</tt> otherwise.
*
* @deprecated Use
* {@link org.apache.commons.httpclient.params.HttpClientParams#setAuthenticationPreemptive(boolean)},
* {@link HttpClient#getParams()}.
*/
public void setAuthenticationPreemptive(boolean value) {
this.preemptive = value;
}
/**
* Returns <tt>true</tt> if preemptive authentication should be
* attempted, <tt>false</tt> otherwise.
*
* @return boolean flag.
*
* @deprecated Use
* {@link org.apache.commons.httpclient.params.HttpClientParams#isAuthenticationPreemptive()},
* {@link HttpClient#getParams()}.
*/
public boolean isAuthenticationPreemptive() {
return this.preemptive;
}
/**
* Sets the current {@link CookiePolicy cookie policy} for this HTTP
* state to one of the following supported policies:
* {@link CookiePolicy#COMPATIBILITY},
* {@link CookiePolicy#NETSCAPE_DRAFT} or
* {@link CookiePolicy#RFC2109}.
*
* @param policy new {@link CookiePolicy cookie policy}
*
* @deprecated
* Use {@link org.apache.commons.httpclient.params.HttpMethodParams#setCookiePolicy(String)},
* {@link HttpMethod#getParams()}.
*/
public void setCookiePolicy(int policy) {
this.cookiePolicy = policy;
}
/**
* Sets the {@link Credentials credentials} for the given authentication
* realm on the given host. The <code>null</code> realm signifies default
* credentials for the given host, which should be used when no
* {@link Credentials credentials} have been explictly supplied for the
* challenging realm. The <code>null</code> host signifies default
* credentials, which should be used when no {@link Credentials credentials}
* have been explictly supplied for the challenging host. Any previous
* credentials for the given realm on the given host will be overwritten.
*
* @param realm the authentication realm
* @param host the host the realm belongs to
* @param credentials the authentication {@link Credentials credentials}
* for the given realm.
*
* @see #getCredentials(String, String)
* @see #setProxyCredentials(String, String, Credentials)
*/
public synchronized void setCredentials(String realm, String host, Credentials credentials) {
LOG.trace("enter HttpState.setCredentials(String, String, Credentials)");
credMap.put(new HttpAuthRealm(host, realm), credentials);
}
/**
* Sets the {@link Credentials credentials} for the given authentication
* realm. Any previous credentials for the given realm will be overwritten.
*
* @param realm the {@link HttpAuthRealm authentication realm}
* @param credentials the authentication {@link Credentials credentials}
* for the given realm.
*
* @see #getCredentials(HttpAuthRealm)
* @see #setProxyCredentials(HttpAuthRealm, Credentials)
*
* @since 3.0
*/
public synchronized void setCredentials(final HttpAuthRealm realm, Credentials credentials) {
if (realm == null) {
throw new IllegalArgumentException("Authentication realm token may not be null");
}
LOG.trace("enter HttpState.setCredentials(HttpAuthRealm, Credentials)");
credMap.put(realm, credentials);
}
/**
* Find matching {@link Credentials credentials} for the given authentication realm.
*
* @param map the credentials hash map
* @param token the {@link HttpAuthRealm authentication realm token}
* @return the credentials
*
*/
private static Credentials matchCredentials(HashMap map, HttpAuthRealm token) {
HttpAuthRealm key = token;
Credentials creds = (Credentials) map.get(key);
if (creds == null && token.getScheme() != null) {
key = new HttpAuthRealm(token.getHost(), token.getPort(), token.getRealm());
creds = (Credentials) map.get(key);
}
if (creds == null && token.getRealm() != null) {
key = new HttpAuthRealm(token.getHost(), token.getPort());
creds = (Credentials) map.get(key);
}
if (creds == null && token.getPort() >= 0) {
key = new HttpAuthRealm(token.getHost(), -1);
creds = (Credentials) map.get(key);
}
if (creds == null && token.getHost() != null) {
key = new HttpAuthRealm();
creds = (Credentials) map.get(key);
}
return creds;
}
/**
* Get the {@link Credentials credentials} for the given authentication realm on the
* given host.
*
* If the <i>realm</i> exists on <i>host</i>, return the coresponding credentials.
* If the <i>host</i> exists with a <tt>null</tt> <i>realm</i>, return the corresponding
* credentials.
* If the <i>realm</i> exists with a <tt>null</tt> <i>host</i>, return the
* corresponding credentials. If the <i>realm</i> does not exist, return
* the default Credentials. If there are no default credentials, return
* <code>null</code>.
*
* @param realm the authentication realm
* @param host the host the realm is on
* @return the credentials
*
* @see #setCredentials(String, String, Credentials)
*/
public synchronized Credentials getCredentials(String realm, String host) {
LOG.trace("enter HttpState.getCredentials(String, String");
return matchCredentials(this.credMap, new HttpAuthRealm(host, realm));
}
/**
* Get the {@link Credentials credentials} for the given authentication realm.
*
* @param realm the {@link HttpAuthRealm authentication realm}
* @return the credentials
*
* @see #setCredentials(HttpAuthRealm, Credentials)
*
* @since 3.0
*/
public synchronized Credentials getCredentials(HttpAuthRealm realm) {
if (realm == null) {
throw new IllegalArgumentException("Authentication realm token may not be null");
}
LOG.trace("enter HttpState.getCredentials(HttpAuthRealm)");
return matchCredentials(this.credMap, realm);
}
/**
* Sets the {@link Credentials credentials} for the given proxy authentication
* realm on the given proxy host. The <code>null</code> proxy realm signifies
* default credentials for the given proxy host, which should be used when no
* {@link Credentials credentials} have been explictly supplied for the
* challenging proxy realm. The <code>null</code> proxy host signifies default
* credentials, which should be used when no {@link Credentials credentials}
* have been explictly supplied for the challenging proxy host. Any previous
* credentials for the given proxy realm on the given proxy host will be
* overwritten.
*
* @param realm the authentication realm
* @param proxyHost the proxy host
* @param credentials the authentication credentials for the given realm
*
* @see #getProxyCredentials(String,String)
* @see #setCredentials(String, String, Credentials)
*/
public synchronized void setProxyCredentials(
String realm,
String proxyHost,
Credentials credentials
) {
LOG.trace("enter HttpState.setProxyCredentials(String, String, Credentials");
proxyCred.put(new HttpAuthRealm(proxyHost, realm), credentials);
}
/**
* Sets the {@link Credentials credentials} for the given proxy authentication
* realm. Any previous credentials for the given realm will be overwritten.
*
* @param realm the {@link HttpAuthRealm authentication realm}
* @param credentials the authentication {@link Credentials credentials}
* for the given realm.
*
* @see #getProxyCredentials(HttpAuthRealm)
* @see #setCredentials(HttpAuthRealm, Credentials)
*
* @since 3.0
*/
public synchronized void setProxyCredentials(final HttpAuthRealm realm,
Credentials credentials)
{
if (realm == null) {
throw new IllegalArgumentException("Authentication realm token may not be null");
}
LOG.trace("enter HttpState.setProxyCredentials(HttpAuthRealm, Credentials)");
proxyCred.put(realm, credentials);
}
/**
* Get the {@link Credentials credentials} for the proxy host with the given
* authentication realm.
*
* If the <i>realm</i> exists on <i>host</i>, return the coresponding credentials.
* If the <i>host</i> exists with a <tt>null</tt> <i>realm</i>, return the corresponding
* credentials.
* If the <i>realm</i> exists with a <tt>null</tt> <i>host</i>, return the
* corresponding credentials. If the <i>realm</i> does not exist, return
* the default Credentials. If there are no default credentials, return
* <code>null</code>.
*
* @param realm the authentication realm
* @param proxyHost the proxy host the realm is on
* @return the credentials
* @see #setProxyCredentials(String, String, Credentials)
*/
public synchronized Credentials getProxyCredentials(String realm, String proxyHost) {
LOG.trace("enter HttpState.getCredentials(String, String");
return matchCredentials(this.proxyCred, new HttpAuthRealm(proxyHost, realm));
}
/**
* Get the {@link Credentials credentials} for the given proxy authentication realm.
*
* @param realm the {@link HttpAuthRealm authentication realm}
* @return the credentials
*
* @see #setProxyCredentials(HttpAuthRealm, Credentials)
*
* @since 3.0
*/
public synchronized Credentials getProxyCredentials(HttpAuthRealm realm) {
if (realm == null) {
throw new IllegalArgumentException("Authentication realm token may not be null");
}
LOG.trace("enter HttpState.getProxyCredentials(HttpAuthRealm)");
return matchCredentials(this.proxyCred, realm);
}
/**
* Returns a string representation of this HTTP state.
*
* @return The string representation of the HTTP state.
*
* @see java.lang.Object#toString()
*/
public synchronized String toString() {
StringBuffer sbResult = new StringBuffer();
sbResult.append("[");
sbResult.append(getCredentialsStringRepresentation(proxyCred));
sbResult.append(" | ");
sbResult.append(getCredentialsStringRepresentation(credMap));
sbResult.append(" | ");
sbResult.append(getCookiesStringRepresentation(cookies));
sbResult.append("]");
String strResult = sbResult.toString();
return strResult;
}
/**
* Returns a string representation of the credentials.
* @param credMap The credentials.
* @return The string representation.
*/
private static String getCredentialsStringRepresentation(final Map credMap) {
StringBuffer sbResult = new StringBuffer();
Iterator iter = credMap.keySet().iterator();
while (iter.hasNext()) {
Object key = iter.next();
Credentials cred = (Credentials) credMap.get(key);
if (sbResult.length() > 0) {
sbResult.append(", ");
}
sbResult.append(key);
sbResult.append("#");
sbResult.append(cred.toString());
}
return sbResult.toString();
}
/**
* Returns a string representation of the cookies.
* @param cookies The cookies
* @return The string representation.
*/
private static String getCookiesStringRepresentation(final List cookies) {
StringBuffer sbResult = new StringBuffer();
Iterator iter = cookies.iterator();
while (iter.hasNext()) {
Cookie ck = (Cookie) iter.next();
if (sbResult.length() > 0) {
sbResult.append("#");
}
sbResult.append(ck.toExternalForm());
}
return sbResult.toString();
}
}