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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
* Cookie request headers.
*
* The following parameters can be used to customize the behavior of this
* class:
*
* - {@link org.apache.http.cookie.params.CookieSpecPNames#DATE_PATTERNS}
* - {@link org.apache.http.cookie.params.CookieSpecPNames#SINGLE_COOKIE_HEADER}
* - {@link org.apache.http.client.params.ClientPNames#COOKIE_POLICY}
*
*
* @since 4.0
*/
@Immutable
public class RequestAddCookies implements HttpRequestInterceptor {
private final Log log = LogFactory.getLog(getClass());
public RequestAddCookies() {
super();
}
public void process(final HttpRequest request, final HttpContext context)
throws HttpException, IOException {
if (request == null) {
throw new IllegalArgumentException("HTTP request may not be null");
}
if (context == null) {
throw new IllegalArgumentException("HTTP context may not be null");
}
String method = request.getRequestLine().getMethod();
if (method.equalsIgnoreCase("CONNECT")) {
return;
}
// Obtain cookie store
CookieStore cookieStore = (CookieStore) context.getAttribute(
ClientContext.COOKIE_STORE);
if (cookieStore == null) {
this.log.info("Cookie store not available in HTTP context");
return;
}
// Obtain the registry of cookie specs
CookieSpecRegistry registry = (CookieSpecRegistry) context.getAttribute(
ClientContext.COOKIESPEC_REGISTRY);
if (registry == null) {
this.log.info("CookieSpec registry not available in HTTP context");
return;
}
// Obtain the target host (required)
HttpHost targetHost = (HttpHost) context.getAttribute(
ExecutionContext.HTTP_TARGET_HOST);
if (targetHost == null) {
throw new IllegalStateException("Target host not specified in HTTP context");
}
// Obtain the client connection (required)
HttpRoutedConnection conn = (HttpRoutedConnection) context.getAttribute(
ExecutionContext.HTTP_CONNECTION);
if (conn == null) {
throw new IllegalStateException("Client connection not specified in HTTP context");
}
String policy = HttpClientParams.getCookiePolicy(request.getParams());
if (this.log.isDebugEnabled()) {
this.log.debug("CookieSpec selected: " + policy);
}
URI requestURI;
if (request instanceof HttpUriRequest) {
requestURI = ((HttpUriRequest) request).getURI();
} else {
try {
requestURI = new URI(request.getRequestLine().getUri());
} catch (URISyntaxException ex) {
throw new ProtocolException("Invalid request URI: " +
request.getRequestLine().getUri(), ex);
}
}
String hostName = targetHost.getHostName();
int port = targetHost.getPort();
if (port < 0) {
HttpRoute route = conn.getRoute();
if (route.getHopCount() == 1) {
port = conn.getRemotePort();
} else {
// Target port will be selected by the proxy.
// Use conventional ports for known schemes
String scheme = targetHost.getSchemeName();
if (scheme.equalsIgnoreCase("http")) {
port = 80;
} else if (scheme.equalsIgnoreCase("https")) {
port = 443;
} else {
port = 0;
}
}
}
CookieOrigin cookieOrigin = new CookieOrigin(
hostName,
port,
requestURI.getPath(),
conn.isSecure());
// Get an instance of the selected cookie policy
CookieSpec cookieSpec = registry.getCookieSpec(policy, request.getParams());
// Get all cookies available in the HTTP state
List cookies = new ArrayList(cookieStore.getCookies());
// Find cookies matching the given origin
List matchedCookies = new ArrayList();
Date now = new Date();
for (Cookie cookie : cookies) {
if (!cookie.isExpired(now)) {
if (cookieSpec.match(cookie, cookieOrigin)) {
if (this.log.isDebugEnabled()) {
this.log.debug("Cookie " + cookie + " match " + cookieOrigin);
}
matchedCookies.add(cookie);
}
} else {
if (this.log.isDebugEnabled()) {
this.log.debug("Cookie " + cookie + " expired");
}
}
}
// Generate Cookie request headers
if (!matchedCookies.isEmpty()) {
List headers = cookieSpec.formatCookies(matchedCookies);
for (Header header : headers) {
request.addHeader(header);
}
}
int ver = cookieSpec.getVersion();
if (ver > 0) {
boolean needVersionHeader = false;
for (Cookie cookie : matchedCookies) {
if (ver != cookie.getVersion() || !(cookie instanceof SetCookie2)) {
needVersionHeader = true;
}
}
if (needVersionHeader) {
Header header = cookieSpec.getVersionHeader();
if (header != null) {
// Advertise cookie version support
request.addHeader(header);
}
}
}
// Stick the CookieSpec and CookieOrigin instances to the HTTP context
// so they could be obtained by the response interceptor
context.setAttribute(ClientContext.COOKIE_SPEC, cookieSpec);
context.setAttribute(ClientContext.COOKIE_ORIGIN, cookieOrigin);
}
}
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