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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.
* ====================================================================
*
* 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
* .
*
*/
package org.apache.http.client.protocol;
import java.io.IOException;
import java.util.List;
import org.apache.http.annotation.Immutable;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.Header;
import org.apache.http.HeaderIterator;
import org.apache.http.HttpException;
import org.apache.http.HttpResponse;
import org.apache.http.HttpResponseInterceptor;
import org.apache.http.client.CookieStore;
import org.apache.http.cookie.Cookie;
import org.apache.http.cookie.CookieOrigin;
import org.apache.http.cookie.CookieSpec;
import org.apache.http.cookie.MalformedCookieException;
import org.apache.http.cookie.SM;
import org.apache.http.protocol.HttpContext;
/**
* Response interceptor that populates the current {@link CookieStore} with data
* contained in response cookies received in the given the HTTP response.
*
* @since 4.0
*/
@Immutable
public class ResponseProcessCookies implements HttpResponseInterceptor {
private final Log log = LogFactory.getLog(getClass());
public ResponseProcessCookies() {
super();
}
public void process(final HttpResponse response, final HttpContext context)
throws HttpException, IOException {
if (response == null) {
throw new IllegalArgumentException("HTTP request may not be null");
}
if (context == null) {
throw new IllegalArgumentException("HTTP context may not be null");
}
// Obtain actual CookieSpec instance
CookieSpec cookieSpec = (CookieSpec) context.getAttribute(
ClientContext.COOKIE_SPEC);
if (cookieSpec == null) {
this.log.debug("Cookie spec not specified in HTTP context");
return;
}
// Obtain cookie store
CookieStore cookieStore = (CookieStore) context.getAttribute(
ClientContext.COOKIE_STORE);
if (cookieStore == null) {
this.log.debug("Cookie store not specified in HTTP context");
return;
}
// Obtain actual CookieOrigin instance
CookieOrigin cookieOrigin = (CookieOrigin) context.getAttribute(
ClientContext.COOKIE_ORIGIN);
if (cookieOrigin == null) {
this.log.debug("Cookie origin not specified in HTTP context");
return;
}
HeaderIterator it = response.headerIterator(SM.SET_COOKIE);
processCookies(it, cookieSpec, cookieOrigin, cookieStore);
// see if the cookie spec supports cookie versioning.
if (cookieSpec.getVersion() > 0) {
// process set-cookie2 headers.
// Cookie2 will replace equivalent Cookie instances
it = response.headerIterator(SM.SET_COOKIE2);
processCookies(it, cookieSpec, cookieOrigin, cookieStore);
}
}
private void processCookies(
final HeaderIterator iterator,
final CookieSpec cookieSpec,
final CookieOrigin cookieOrigin,
final CookieStore cookieStore) {
while (iterator.hasNext()) {
Header header = iterator.nextHeader();
try {
List cookies = cookieSpec.parse(header, cookieOrigin);
for (Cookie cookie : cookies) {
try {
cookieSpec.validate(cookie, cookieOrigin);
cookieStore.addCookie(cookie);
if (this.log.isDebugEnabled()) {
this.log.debug("Cookie accepted: \""
+ cookie + "\". ");
}
} catch (MalformedCookieException ex) {
if (this.log.isWarnEnabled()) {
this.log.warn("Cookie rejected: \""
+ cookie + "\". " + ex.getMessage());
}
}
}
} catch (MalformedCookieException ex) {
if (this.log.isWarnEnabled()) {
this.log.warn("Invalid cookie header: \""
+ header + "\". " + ex.getMessage());
}
}
}
}
}