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1   /*
2    * Copyright (C) 2013, 2017 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_MOVED_PERM
77  	 * @since 4.7
78  	 */
79  	public static final int HTTP_MOVED_PERM = java.net.HttpURLConnection.HTTP_MOVED_PERM;
80  
81  	/**
82  	 * @see HttpURLConnection#HTTP_MOVED_TEMP
83  	 * @since 4.9
84  	 */
85  	public static final int HTTP_MOVED_TEMP = java.net.HttpURLConnection.HTTP_MOVED_TEMP;
86  
87  	/**
88  	 * @see HttpURLConnection#HTTP_SEE_OTHER
89  	 * @since 4.9
90  	 */
91  	public static final int HTTP_SEE_OTHER = java.net.HttpURLConnection.HTTP_SEE_OTHER;
92  
93  	/**
94  	 * HTTP 1.1 additional MOVED_TEMP status code; value = 307.
95  	 *
96  	 * @see #HTTP_MOVED_TEMP
97  	 * @since 4.9
98  	 */
99  	public static final int HTTP_11_MOVED_TEMP = 307;
100 
101 	/**
102 	 * @see HttpURLConnection#HTTP_NOT_FOUND
103 	 */
104 	public static final int HTTP_NOT_FOUND = java.net.HttpURLConnection.HTTP_NOT_FOUND;
105 
106 	/**
107 	 * @see HttpURLConnection#HTTP_UNAUTHORIZED
108 	 */
109 	public static final int HTTP_UNAUTHORIZED = java.net.HttpURLConnection.HTTP_UNAUTHORIZED;
110 
111 	/**
112 	 * @see HttpURLConnection#HTTP_FORBIDDEN
113 	 */
114 	public static final int HTTP_FORBIDDEN = java.net.HttpURLConnection.HTTP_FORBIDDEN;
115 
116 	/**
117 	 * @see HttpURLConnection#getResponseCode()
118 	 * @return the HTTP Status-Code, or -1
119 	 * @throws IOException
120 	 */
121 	public int getResponseCode() throws IOException;
122 
123 	/**
124 	 * @see HttpURLConnection#getURL()
125 	 * @return the URL.
126 	 */
127 	public URL getURL();
128 
129 	/**
130 	 * @see HttpURLConnection#getResponseMessage()
131 	 * @return the HTTP response message, or <code>null</code>
132 	 * @throws IOException
133 	 */
134 	public String getResponseMessage() throws IOException;
135 
136 	/**
137 	 * @see HttpURLConnection#getHeaderFields()
138 	 * @return a Map of header fields
139 	 */
140 	public Map<String, List<String>> getHeaderFields();
141 
142 	/**
143 	 * @see HttpURLConnection#setRequestProperty(String, String)
144 	 * @param key
145 	 *            the keyword by which the request is known (e.g., "
146 	 *            <code>Accept</code>").
147 	 * @param value
148 	 *            the value associated with it.
149 	 */
150 	public void setRequestProperty(String key, String value);
151 
152 	/**
153 	 * @see HttpURLConnection#setRequestMethod(String)
154 	 * @param method
155 	 *            the HTTP method
156 	 * @exception ProtocolException
157 	 *                if the method cannot be reset or if the requested method
158 	 *                isn't valid for HTTP.
159 	 */
160 	public void setRequestMethod(String method)
161 			throws ProtocolException;
162 
163 	/**
164 	 * @see HttpURLConnection#setUseCaches(boolean)
165 	 * @param usecaches
166 	 *            a <code>boolean</code> indicating whether or not to allow
167 	 *            caching
168 	 */
169 	public void setUseCaches(boolean usecaches);
170 
171 	/**
172 	 * @see HttpURLConnection#setConnectTimeout(int)
173 	 * @param timeout
174 	 *            an <code>int</code> that specifies the connect timeout value
175 	 *            in milliseconds
176 	 */
177 	public void setConnectTimeout(int timeout);
178 
179 	/**
180 	 * @see HttpURLConnection#setReadTimeout(int)
181 	 * @param timeout
182 	 *            an <code>int</code> that specifies the timeout value to be
183 	 *            used in milliseconds
184 	 */
185 	public void setReadTimeout(int timeout);
186 
187 	/**
188 	 * @see HttpURLConnection#getContentType()
189 	 * @return the content type of the resource that the URL references, or
190 	 *         <code>null</code> if not known.
191 	 */
192 	public String getContentType();
193 
194 	/**
195 	 * @see HttpURLConnection#getInputStream()
196 	 * @return an input stream that reads from this open connection.
197 	 * @exception IOException
198 	 *                if an I/O error occurs while creating the input stream.
199 	 */
200 	public InputStream getInputStream() throws IOException;
201 
202 	/**
203 	 * @see HttpURLConnection#getHeaderField(String)
204 	 * @param name
205 	 *            the name of a header field.
206 	 * @return the value of the named header field, or <code>null</code> if
207 	 *         there is no such field in the header.
208 	 */
209 	public String getHeaderField(String name);
210 
211 	/**
212 	 * @see HttpURLConnection#getContentLength()
213 	 * @return the content length of the resource that this connection's URL
214 	 *         references, {@code -1} if the content length is not known, or if
215 	 *         the content length is greater than Integer.MAX_VALUE.
216 	 */
217 	public int getContentLength();
218 
219 	/**
220 	 * @see HttpURLConnection#setInstanceFollowRedirects(boolean)
221 	 * @param followRedirects
222 	 *            a <code>boolean</code> indicating whether or not to follow
223 	 *            HTTP redirects.
224 	 */
225 	public void setInstanceFollowRedirects(boolean followRedirects);
226 
227 	/**
228 	 * @see HttpURLConnection#setDoOutput(boolean)
229      * @param   dooutput   the new value.
230 	 */
231 	public void setDoOutput(boolean dooutput);
232 
233 	/**
234 	 * @see HttpURLConnection#setFixedLengthStreamingMode(int)
235 	 * @param contentLength
236 	 *            The number of bytes which will be written to the OutputStream.
237 	 *
238 	 */
239 	public void setFixedLengthStreamingMode(int contentLength);
240 
241 	/**
242 	 * @see HttpURLConnection#getOutputStream()
243 	 * @return an output stream that writes to this connection.
244 	 * @throws IOException
245 	 */
246 	public OutputStream getOutputStream() throws IOException;
247 
248 	/**
249 	 * @see HttpURLConnection#setChunkedStreamingMode(int)
250 	 * @param chunklen
251 	 *            The number of bytes to write in each chunk. If chunklen is
252 	 *            less than or equal to zero, a default value will be used.
253 	 */
254 	public void setChunkedStreamingMode(int chunklen);
255 
256 	/**
257 	 * @see HttpURLConnection#getRequestMethod()
258 	 * @return the HTTP request method
259 	 */
260 	public String getRequestMethod();
261 
262 	/**
263 	 * @see HttpURLConnection#usingProxy()
264 	 * @return a boolean indicating if the connection is using a proxy.
265 	 */
266 	public boolean usingProxy();
267 
268 	/**
269 	 * @see HttpURLConnection#connect()
270 	 * @throws IOException
271 	 */
272 	public void connect() throws IOException;
273 
274 	/**
275 	 * Configure the connection so that it can be used for https communication.
276 	 *
277 	 * @param km
278 	 *            the keymanager managing the key material used to authenticate
279 	 *            the local SSLSocket to its peer
280 	 * @param tm
281 	 *            the trustmanager responsible for managing the trust material
282 	 *            that is used when making trust decisions, and for deciding
283 	 *            whether credentials presented by a peer should be accepted.
284 	 * @param random
285 	 *            the source of randomness for this generator or null. See
286 	 *            {@link SSLContext#init(KeyManager[], TrustManager[], SecureRandom)}
287 	 *
288 	 * @throws NoSuchAlgorithmException
289 	 * @throws KeyManagementException
290 	 */
291 	public void configure(KeyManager[] km, TrustManager[] tm,
292 			SecureRandom random) throws NoSuchAlgorithmException,
293 			KeyManagementException;
294 
295 	/**
296 	 * Set the {@link HostnameVerifier} used during https communication
297 	 *
298 	 * @param hostnameverifier
299 	 * @throws NoSuchAlgorithmException
300 	 * @throws KeyManagementException
301 	 */
302 	public void setHostnameVerifier(HostnameVerifier hostnameverifier)
303 			throws NoSuchAlgorithmException, KeyManagementException;
304 }