1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.http.impl.client;
29
30 import org.apache.http.HttpVersion;
31 import org.apache.http.annotation.ThreadSafe;
32 import org.apache.http.client.HttpClient;
33 import org.apache.http.client.protocol.RequestAddCookies;
34 import org.apache.http.client.protocol.RequestAuthCache;
35 import org.apache.http.client.protocol.RequestClientConnControl;
36 import org.apache.http.client.protocol.RequestDefaultHeaders;
37 import org.apache.http.client.protocol.RequestProxyAuthentication;
38 import org.apache.http.client.protocol.RequestTargetAuthentication;
39 import org.apache.http.client.protocol.ResponseProcessCookies;
40 import org.apache.http.conn.ClientConnectionManager;
41 import org.apache.http.params.CoreConnectionPNames;
42 import org.apache.http.params.CoreProtocolPNames;
43 import org.apache.http.params.HttpConnectionParams;
44 import org.apache.http.params.HttpParams;
45 import org.apache.http.params.HttpProtocolParams;
46 import org.apache.http.params.SyncBasicHttpParams;
47 import org.apache.http.protocol.BasicHttpProcessor;
48 import org.apache.http.protocol.HTTP;
49 import org.apache.http.protocol.RequestContent;
50 import org.apache.http.protocol.RequestExpectContinue;
51 import org.apache.http.protocol.RequestTargetHost;
52 import org.apache.http.protocol.RequestUserAgent;
53 import org.apache.http.util.VersionInfo;
54
55 /**
56 * Default implementation of {@link HttpClient} pre-configured for most common use scenarios.
57 * <p>
58 * Please see the Javadoc for {@link #createHttpProcessor()} for the details of the interceptors
59 * that are set up by default.
60 * <p>
61 * Additional interceptors can be added as follows, but
62 * take care not to add the same interceptor more than once.
63 * <pre>
64 * DefaultHttpClient httpclient = new DefaultHttpClient();
65 * httpclient.addRequestInterceptor(new RequestAcceptEncoding());
66 * httpclient.addResponseInterceptor(new ResponseContentEncoding());
67 * </pre>
68 * <p>
69 * This class sets up the following parameters if not explicitly set:
70 * <ul>
71 * <li>Version: HttpVersion.HTTP_1_1</li>
72 * <li>ContentCharset: HTTP.DEFAULT_CONTENT_CHARSET</li>
73 * <li>NoTcpDelay: true</li>
74 * <li>SocketBufferSize: 8192</li>
75 * <li>UserAgent: Apache-HttpClient/release (java 1.5)</li>
76 * </ul>
77 * <p>
78 * The following parameters can be used to customize the behavior of this
79 * class:
80 * <ul>
81 * <li>{@link org.apache.http.params.CoreProtocolPNames#PROTOCOL_VERSION}</li>
82 * <li>{@link org.apache.http.params.CoreProtocolPNames#STRICT_TRANSFER_ENCODING}</li>
83 * <li>{@link org.apache.http.params.CoreProtocolPNames#HTTP_ELEMENT_CHARSET}</li>
84 * <li>{@link org.apache.http.params.CoreProtocolPNames#USE_EXPECT_CONTINUE}</li>
85 * <li>{@link org.apache.http.params.CoreProtocolPNames#WAIT_FOR_CONTINUE}</li>
86 * <li>{@link org.apache.http.params.CoreProtocolPNames#USER_AGENT}</li>
87 * <li>{@link org.apache.http.params.CoreConnectionPNames#TCP_NODELAY}</li>
88 * <li>{@link org.apache.http.params.CoreConnectionPNames#SO_TIMEOUT}</li>
89 * <li>{@link org.apache.http.params.CoreConnectionPNames#SO_LINGER}</li>
90 * <li>{@link org.apache.http.params.CoreConnectionPNames#SO_REUSEADDR}</li>
91 * <li>{@link org.apache.http.params.CoreConnectionPNames#SOCKET_BUFFER_SIZE}</li>
92 * <li>{@link org.apache.http.params.CoreConnectionPNames#CONNECTION_TIMEOUT}</li>
93 * <li>{@link org.apache.http.params.CoreConnectionPNames#MAX_LINE_LENGTH}</li>
94 * <li>{@link org.apache.http.params.CoreConnectionPNames#MAX_HEADER_COUNT}</li>
95 * <li>{@link org.apache.http.params.CoreConnectionPNames#STALE_CONNECTION_CHECK}</li>
96 * <li>{@link org.apache.http.conn.params.ConnRoutePNames#FORCED_ROUTE}</li>
97 * <li>{@link org.apache.http.conn.params.ConnRoutePNames#LOCAL_ADDRESS}</li>
98 * <li>{@link org.apache.http.conn.params.ConnRoutePNames#DEFAULT_PROXY}</li>
99 * <li>{@link org.apache.http.cookie.params.CookieSpecPNames#DATE_PATTERNS}</li>
100 * <li>{@link org.apache.http.cookie.params.CookieSpecPNames#SINGLE_COOKIE_HEADER}</li>
101 * <li>{@link org.apache.http.auth.params.AuthPNames#CREDENTIAL_CHARSET}</li>
102 * <li>{@link org.apache.http.client.params.ClientPNames#COOKIE_POLICY}</li>
103 * <li>{@link org.apache.http.client.params.ClientPNames#HANDLE_AUTHENTICATION}</li>
104 * <li>{@link org.apache.http.client.params.ClientPNames#HANDLE_REDIRECTS}</li>
105 * <li>{@link org.apache.http.client.params.ClientPNames#MAX_REDIRECTS}</li>
106 * <li>{@link org.apache.http.client.params.ClientPNames#ALLOW_CIRCULAR_REDIRECTS}</li>
107 * <li>{@link org.apache.http.client.params.ClientPNames#VIRTUAL_HOST}</li>
108 * <li>{@link org.apache.http.client.params.ClientPNames#DEFAULT_HOST}</li>
109 * <li>{@link org.apache.http.client.params.ClientPNames#DEFAULT_HEADERS}</li>
110 * <li>{@link org.apache.http.client.params.ClientPNames#CONN_MANAGER_TIMEOUT}</li>
111 * </ul>
112 *
113 * @since 4.0
114 */
115 @ThreadSafe
116 public class DefaultHttpClient extends AbstractHttpClient {
117
118 /**
119 * Creates a new HTTP client from parameters and a connection manager.
120 *
121 * @param params the parameters
122 * @param conman the connection manager
123 */
124 public DefaultHttpClient(
125 final ClientConnectionManager conman,
126 final HttpParams params) {
127 super(conman, params);
128 }
129
130
131 /**
132 * @since 4.1
133 */
134 public DefaultHttpClient(
135 final ClientConnectionManager conman) {
136 super(conman, null);
137 }
138
139
140 public DefaultHttpClient(final HttpParams params) {
141 super(null, params);
142 }
143
144
145 public DefaultHttpClient() {
146 super(null, null);
147 }
148
149
150 /**
151 * Creates the default set of HttpParams by invoking {@link DefaultHttpClient#setDefaultHttpParams(HttpParams)}
152 *
153 * @return a new instance of {@link SyncBasicHttpParams} with the defaults applied to it.
154 */
155 @Override
156 protected HttpParams createHttpParams() {
157 HttpParams params = new SyncBasicHttpParams();
158 setDefaultHttpParams(params);
159 return params;
160 }
161
162 /**
163 * Saves the default set of HttpParams in the provided parameter.
164 * These are:
165 * <ul>
166 * <li>{@link CoreProtocolPNames#PROTOCOL_VERSION}: 1.1</li>
167 * <li>{@link CoreProtocolPNames#HTTP_CONTENT_CHARSET}: ISO-8859-1</li>
168 * <li>{@link CoreConnectionPNames#TCP_NODELAY}: true</li>
169 * <li>{@link CoreConnectionPNames#SOCKET_BUFFER_SIZE}: 8192</li>
170 * <li>{@link CoreProtocolPNames#USER_AGENT}: Apache-HttpClient/<release> (java 1.5)</li>
171 * </ul>
172 */
173 public static void setDefaultHttpParams(HttpParams params) {
174 HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
175 HttpProtocolParams.setContentCharset(params, HTTP.DEF_CONTENT_CHARSET.name());
176 HttpConnectionParams.setTcpNoDelay(params, true);
177 HttpConnectionParams.setSocketBufferSize(params, 8192);
178
179 // determine the release version from packaged version info
180 final VersionInfo vi = VersionInfo.loadVersionInfo
181 ("org.apache.http.client", DefaultHttpClient.class.getClassLoader());
182 final String release = (vi != null) ?
183 vi.getRelease() : VersionInfo.UNAVAILABLE;
184 HttpProtocolParams.setUserAgent(params,
185 "Apache-HttpClient/" + release + " (java 1.5)");
186 }
187
188 /**
189 * Create the processor with the following interceptors:
190 * <ul>
191 * <li>{@link RequestDefaultHeaders}</li>
192 * <li>{@link RequestContent}</li>
193 * <li>{@link RequestTargetHost}</li>
194 * <li>{@link RequestClientConnControl}</li>
195 * <li>{@link RequestUserAgent}</li>
196 * <li>{@link RequestExpectContinue}</li>
197 * <li>{@link RequestAddCookies}</li>
198 * <li>{@link ResponseProcessCookies}</li>
199 * <li>{@link RequestAuthCache}</li>
200 * <li>{@link RequestTargetAuthentication}</li>
201 * <li>{@link RequestProxyAuthentication}</li>
202 * </ul>
203 * <p>
204 * @return the processor with the added interceptors.
205 */
206 @Override
207 protected BasicHttpProcessor createHttpProcessor() {
208 BasicHttpProcessor httpproc = new BasicHttpProcessor();
209 httpproc.addInterceptor(new RequestDefaultHeaders());
210 // Required protocol interceptors
211 httpproc.addInterceptor(new RequestContent());
212 httpproc.addInterceptor(new RequestTargetHost());
213 // Recommended protocol interceptors
214 httpproc.addInterceptor(new RequestClientConnControl());
215 httpproc.addInterceptor(new RequestUserAgent());
216 httpproc.addInterceptor(new RequestExpectContinue());
217 // HTTP state management interceptors
218 httpproc.addInterceptor(new RequestAddCookies());
219 httpproc.addInterceptor(new ResponseProcessCookies());
220 // HTTP authentication interceptors
221 httpproc.addInterceptor(new RequestAuthCache());
222 httpproc.addInterceptor(new RequestTargetAuthentication());
223 httpproc.addInterceptor(new RequestProxyAuthentication());
224 return httpproc;
225 }
226
227 }