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1   /*
2    * Copyright (C) 2013 Christian Halstrick <christian.halstrick@sap.com>
3    * and other copyright owners as documented in the project's IP log.
4    *
5    * This program and the accompanying materials are made available
6    * under the terms of the Eclipse Distribution License v1.0 which
7    * accompanies this distribution, is reproduced below, and is
8    * available at http://www.eclipse.org/org/documents/edl-v10.php
9    *
10   * All rights reserved.
11   *
12   * Redistribution and use in source and binary forms, with or
13   * without modification, are permitted provided that the following
14   * conditions are met:
15   *
16   * - Redistributions of source code must retain the above copyright
17   *   notice, this list of conditions and the following disclaimer.
18   *
19   * - Redistributions in binary form must reproduce the above
20   *   copyright notice, this list of conditions and the following
21   *   disclaimer in the documentation and/or other materials provided
22   *   with the distribution.
23   *
24   * - Neither the name of the Eclipse Foundation, Inc. nor the
25   *   names of its contributors may be used to endorse or promote
26   *   products derived from this software without specific prior
27   *   written permission.
28   *
29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42   */
43  package org.eclipse.jgit.transport.http;
44  
45  import java.io.IOException;
46  import java.io.InputStream;
47  import java.io.OutputStream;
48  import java.net.HttpURLConnection;
49  import java.net.ProtocolException;
50  import java.net.URL;
51  import java.security.KeyManagementException;
52  import java.security.NoSuchAlgorithmException;
53  import java.security.SecureRandom;
54  import java.util.List;
55  import java.util.Map;
56  
57  import javax.net.ssl.HostnameVerifier;
58  import javax.net.ssl.KeyManager;
59  import javax.net.ssl.SSLContext;
60  import javax.net.ssl.TrustManager;
61  
62  /**
63   * The interface of connections used during HTTP communication. This interface
64   * is that subset of the interface exposed by {@link HttpURLConnection} which is
65   * used by JGit
66   *
67   * @since 3.3
68   */
69  public interface HttpConnection {
70  	/**
71  	 * @see HttpURLConnection#HTTP_OK
72  	 */
73  	public static final int HTTP_OK = java.net.HttpURLConnection.HTTP_OK;
74  
75  	/**
76  	 * @see HttpURLConnection#HTTP_NOT_FOUND
77  	 */
78  	public static final int HTTP_NOT_FOUND = java.net.HttpURLConnection.HTTP_NOT_FOUND;
79  
80  	/**
81  	 * @see HttpURLConnection#HTTP_UNAUTHORIZED
82  	 */
83  	public static final int HTTP_UNAUTHORIZED = java.net.HttpURLConnection.HTTP_UNAUTHORIZED;
84  
85  	/**
86  	 * @see HttpURLConnection#HTTP_FORBIDDEN
87  	 */
88  	public static final int HTTP_FORBIDDEN = java.net.HttpURLConnection.HTTP_FORBIDDEN;
89  
90  	/**
91  	 * @see HttpURLConnection#getResponseCode()
92  	 * @return the HTTP Status-Code, or -1
93  	 * @throws IOException
94  	 */
95  	public int getResponseCode() throws IOException;
96  
97  	/**
98  	 * @see HttpURLConnection#getURL()
99  	 * @return the URL.
100 	 */
101 	public URL getURL();
102 
103 	/**
104 	 * @see HttpURLConnection#getResponseMessage()
105 	 * @return the HTTP response message, or <code>null</code>
106 	 * @throws IOException
107 	 */
108 	public String getResponseMessage() throws IOException;
109 
110 	/**
111 	 * @see HttpURLConnection#getHeaderFields()
112 	 * @return a Map of header fields
113 	 */
114 	public Map<String, List<String>> getHeaderFields();
115 
116 	/**
117 	 * @see HttpURLConnection#setRequestProperty(String, String)
118 	 * @param key
119 	 *            the keyword by which the request is known (e.g., "
120 	 *            <code>Accept</code>").
121 	 * @param value
122 	 *            the value associated with it.
123 	 */
124 	public void setRequestProperty(String key, String value);
125 
126 	/**
127 	 * @see HttpURLConnection#setRequestMethod(String)
128 	 * @param method
129 	 *            the HTTP method
130 	 * @exception ProtocolException
131 	 *                if the method cannot be reset or if the requested method
132 	 *                isn't valid for HTTP.
133 	 */
134 	public void setRequestMethod(String method)
135 			throws ProtocolException;
136 
137 	/**
138 	 * @see HttpURLConnection#setUseCaches(boolean)
139 	 * @param usecaches
140 	 *            a <code>boolean</code> indicating whether or not to allow
141 	 *            caching
142 	 */
143 	public void setUseCaches(boolean usecaches);
144 
145 	/**
146 	 * @see HttpURLConnection#setConnectTimeout(int)
147 	 * @param timeout
148 	 *            an <code>int</code> that specifies the connect timeout value
149 	 *            in milliseconds
150 	 */
151 	public void setConnectTimeout(int timeout);
152 
153 	/**
154 	 * @see HttpURLConnection#setReadTimeout(int)
155 	 * @param timeout
156 	 *            an <code>int</code> that specifies the timeout value to be
157 	 *            used in milliseconds
158 	 */
159 	public void setReadTimeout(int timeout);
160 
161 	/**
162 	 * @see HttpURLConnection#getContentType()
163 	 * @return the content type of the resource that the URL references, or
164 	 *         <code>null</code> if not known.
165 	 */
166 	public String getContentType();
167 
168 	/**
169 	 * @see HttpURLConnection#getInputStream()
170 	 * @return an input stream that reads from this open connection.
171 	 * @exception IOException
172 	 *                if an I/O error occurs while creating the input stream.
173 	 */
174 	public InputStream getInputStream() throws IOException;
175 
176 	/**
177 	 * @see HttpURLConnection#getHeaderField(String)
178 	 * @param name
179 	 *            the name of a header field.
180 	 * @return the value of the named header field, or <code>null</code> if
181 	 *         there is no such field in the header.
182 	 */
183 	public String getHeaderField(String name);
184 
185 	/**
186 	 * @see HttpURLConnection#getContentLength()
187 	 * @return the content length of the resource that this connection's URL
188 	 *         references, {@code -1} if the content length is not known, or if
189 	 *         the content length is greater than Integer.MAX_VALUE.
190 	 */
191 	public int getContentLength();
192 
193 	/**
194 	 * @see HttpURLConnection#setInstanceFollowRedirects(boolean)
195 	 * @param followRedirects
196 	 *            a <code>boolean</code> indicating whether or not to follow
197 	 *            HTTP redirects.
198 	 */
199 	public void setInstanceFollowRedirects(boolean followRedirects);
200 
201 	/**
202 	 * @see HttpURLConnection#setDoOutput(boolean)
203      * @param   dooutput   the new value.
204 	 */
205 	public void setDoOutput(boolean dooutput);
206 
207 	/**
208 	 * @see HttpURLConnection#setFixedLengthStreamingMode(int)
209 	 * @param contentLength
210 	 *            The number of bytes which will be written to the OutputStream.
211 	 *
212 	 */
213 	public void setFixedLengthStreamingMode(int contentLength);
214 
215 	/**
216 	 * @see HttpURLConnection#getOutputStream()
217 	 * @return an output stream that writes to this connection.
218 	 * @throws IOException
219 	 */
220 	public OutputStream getOutputStream() throws IOException;
221 
222 	/**
223 	 * @see HttpURLConnection#setChunkedStreamingMode(int)
224 	 * @param chunklen
225 	 *            The number of bytes to write in each chunk. If chunklen is
226 	 *            less than or equal to zero, a default value will be used.
227 	 */
228 	public void setChunkedStreamingMode(int chunklen);
229 
230 	/**
231 	 * @see HttpURLConnection#getRequestMethod()
232 	 * @return the HTTP request method
233 	 */
234 	public String getRequestMethod();
235 
236 	/**
237 	 * @see HttpURLConnection#usingProxy()
238 	 * @return a boolean indicating if the connection is using a proxy.
239 	 */
240 	public boolean usingProxy();
241 
242 	/**
243 	 * @see HttpURLConnection#connect()
244 	 * @throws IOException
245 	 */
246 	public void connect() throws IOException;
247 
248 	/**
249 	 * Configure the connection so that it can be used for https communication.
250 	 * 
251 	 * @param km
252 	 *            the keymanager managing the key material used to authenticate
253 	 *            the local SSLSocket to its peer
254 	 * @param tm
255 	 *            the trustmanager responsible for managing the trust material
256 	 *            that is used when making trust decisions, and for deciding
257 	 *            whether credentials presented by a peer should be accepted.
258 	 * @param random
259 	 *            the source of randomness for this generator or null. See
260 	 *            {@link SSLContext#init(KeyManager[], TrustManager[], SecureRandom)}
261 	 *
262 	 * @throws NoSuchAlgorithmException
263 	 * @throws KeyManagementException
264 	 */
265 	public void configure(KeyManager[] km, TrustManager[] tm,
266 			SecureRandom random) throws NoSuchAlgorithmException,
267 			KeyManagementException;
268 
269 	/**
270 	 * Set the {@link HostnameVerifier} used during https communication
271 	 *
272 	 * @param hostnameverifier
273 	 * @throws NoSuchAlgorithmException
274 	 * @throws KeyManagementException
275 	 */
276 	public void setHostnameVerifier(HostnameVerifier hostnameverifier)
277 			throws NoSuchAlgorithmException, KeyManagementException;
278 }