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annotate src/org/eclipse/jetty/server/AbstractHttpConnection.java @ 986:4f2d04c72781
remove RandomAccessFileBuffer
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Mon, 17 Oct 2016 04:44:53 -0600 |
parents | 8fef34f665e7 |
children | 83cc6e05a58f |
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1 // |
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2 // ======================================================================== |
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
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4 // ------------------------------------------------------------------------ |
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5 // All rights reserved. This program and the accompanying materials |
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6 // are made available under the terms of the Eclipse Public License v1.0 |
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7 // and Apache License v2.0 which accompanies this distribution. |
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8 // |
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9 // The Eclipse Public License is available at |
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10 // http://www.eclipse.org/legal/epl-v10.html |
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11 // |
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12 // The Apache License v2.0 is available at |
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13 // http://www.opensource.org/licenses/apache2.0.php |
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14 // |
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15 // You may elect to redistribute this code under either of these licenses. |
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16 // ======================================================================== |
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17 // |
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18 |
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19 package org.eclipse.jetty.server; |
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20 |
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21 import java.io.IOException; |
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22 import java.io.InputStream; |
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23 import java.io.PrintWriter; |
985 | 24 import java.io.Writer; |
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25 |
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26 import javax.servlet.DispatcherType; |
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27 import javax.servlet.RequestDispatcher; |
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28 import javax.servlet.ServletInputStream; |
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29 import javax.servlet.ServletOutputStream; |
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30 import javax.servlet.http.HttpServletRequest; |
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31 import javax.servlet.http.HttpServletResponse; |
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32 |
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33 import org.eclipse.jetty.http.EncodedHttpURI; |
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34 import org.eclipse.jetty.http.HttpBuffers; |
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35 import org.eclipse.jetty.http.HttpException; |
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36 import org.eclipse.jetty.http.HttpFields; |
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37 import org.eclipse.jetty.http.HttpGenerator; |
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38 import org.eclipse.jetty.http.HttpHeaderValues; |
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39 import org.eclipse.jetty.http.HttpHeaders; |
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40 import org.eclipse.jetty.http.HttpMethods; |
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41 import org.eclipse.jetty.http.HttpParser; |
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42 import org.eclipse.jetty.http.HttpStatus; |
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43 import org.eclipse.jetty.http.HttpURI; |
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44 import org.eclipse.jetty.http.HttpVersions; |
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45 import org.eclipse.jetty.http.MimeTypes; |
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46 import org.eclipse.jetty.io.AbstractConnection; |
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47 import org.eclipse.jetty.io.Buffer; |
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48 import org.eclipse.jetty.io.BufferCache.CachedBuffer; |
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49 import org.eclipse.jetty.io.Buffers; |
985 | 50 import org.eclipse.jetty.io.ByteArrayBuffer; |
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51 import org.eclipse.jetty.io.EndPoint; |
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52 import org.eclipse.jetty.io.EofException; |
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53 import org.eclipse.jetty.io.RuntimeIOException; |
985 | 54 import org.eclipse.jetty.util.ByteArrayOutputStream2; |
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55 import org.eclipse.jetty.util.QuotedStringTokenizer; |
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56 import org.eclipse.jetty.util.StringUtil; |
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57 import org.eclipse.jetty.util.URIUtil; |
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58 import org.slf4j.Logger; |
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59 import org.slf4j.LoggerFactory; |
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60 import org.eclipse.jetty.util.resource.Resource; |
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61 |
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62 /** |
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63 * <p>A HttpConnection represents the connection of a HTTP client to the server |
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64 * and is created by an instance of a {@link Connector}. It's prime function is |
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65 * to associate {@link Request} and {@link Response} instances with a {@link EndPoint}. |
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66 * </p> |
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67 * <p> |
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68 * A connection is also the prime mechanism used by jetty to recycle objects without |
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69 * pooling. The {@link Request}, {@link Response}, {@link HttpParser}, {@link HttpGenerator} |
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70 * and {@link HttpFields} instances are all recycled for the duraction of |
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71 * a connection. Where appropriate, allocated buffers are also kept associated |
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72 * with the connection via the parser and/or generator. |
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73 * </p> |
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74 * <p> |
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75 * The connection state is held by 3 separate state machines: The request state, the |
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76 * response state and the continuation state. All three state machines must be driven |
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77 * to completion for every request, and all three can complete in any order. |
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78 * </p> |
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79 * <p> |
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80 * The HttpConnection support protocol upgrade. If on completion of a request, the |
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81 * response code is 101 (switch protocols), then the org.eclipse.jetty.io.Connection |
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82 * request attribute is checked to see if there is a new Connection instance. If so, |
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83 * the new connection is returned from {@link #handle()} and is used for future |
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84 * handling of the underlying connection. Note that for switching protocols that |
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85 * don't use 101 responses (eg CONNECT), the response should be sent and then the |
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86 * status code changed to 101 before returning from the handler. Implementors |
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87 * of new Connection types should be careful to extract any buffered data from |
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88 * (HttpParser)http.getParser()).getHeaderBuffer() and |
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89 * (HttpParser)http.getParser()).getBodyBuffer() to initialise their new connection. |
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90 * </p> |
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91 * |
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92 */ |
982 | 93 public abstract class AbstractHttpConnection extends AbstractConnection |
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94 { |
826 | 95 private static final Logger LOG = LoggerFactory.getLogger(AbstractHttpConnection.class); |
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96 |
826 | 97 private int _requests; |
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98 |
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99 private final Connector _connector; |
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100 private final Server _server; |
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101 protected final HttpURI _uri = StringUtil.__UTF8.equals(URIUtil.__CHARSET)?new HttpURI():new EncodedHttpURI(URIUtil.__CHARSET); |
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102 |
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103 protected final HttpParser _parser; |
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104 protected final HttpFields _requestFields = new HttpFields(); |
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105 private final Request _request; |
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106 private volatile ServletInputStream _in; |
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107 |
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108 protected final HttpGenerator _generator; |
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109 final HttpFields _responseFields = new HttpFields(); |
826 | 110 protected final Response _response; |
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111 private volatile Output _out; |
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112 private volatile HttpWriter _writer; |
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113 private volatile PrintWriter _printWriter; |
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114 |
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115 private int _version = -2; // UNKNOWN |
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116 |
826 | 117 private String _charset; |
118 private boolean _expect = false; | |
119 private boolean _expect100Continue = false; | |
120 private boolean _expect102Processing = false; | |
121 private boolean _head = false; | |
122 private boolean _host = false; | |
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123 private boolean _delayedHandling = false; |
826 | 124 private boolean _earlyEOF = false; |
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125 |
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126 protected AbstractHttpConnection(Connector connector, EndPoint endpoint) |
826 | 127 { |
128 super(endpoint); | |
129 _connector = connector; | |
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130 HttpBuffers ab = _connector; |
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131 _parser = new HttpParser(ab.getRequestBuffers(), endpoint, new RequestHandler()); |
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132 _request = new Request(this); |
826 | 133 _response = new Response(this); |
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134 _generator = new HttpGenerator(ab.getResponseBuffers(), endpoint); |
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135 _server = connector.server; |
826 | 136 } |
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137 |
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138 public final Connector getConnector() |
826 | 139 { |
140 return _connector; | |
141 } | |
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142 |
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143 public final Request getRequest() |
826 | 144 { |
145 return _request; | |
146 } | |
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147 |
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148 public final Response getResponse() |
826 | 149 { |
150 return _response; | |
151 } | |
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152 |
826 | 153 /* ------------------------------------------------------------ */ |
154 /** | |
155 * Get the inputStream from the connection. | |
156 * <p> | |
157 * If the associated response has the Expect header set to 100 Continue, | |
158 * then accessing the input stream indicates that the handler/servlet | |
159 * is ready for the request body and thus a 100 Continue response is sent. | |
160 * | |
161 * @return The input stream for this connection. | |
162 * The stream will be created if it does not already exist. | |
163 * @throws IOException if the input stream cannot be retrieved | |
164 */ | |
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165 public final ServletInputStream getInputStream() throws IOException |
826 | 166 { |
167 // If the client is expecting 100 CONTINUE, then send it now. | |
168 if (_expect100Continue) | |
169 { | |
170 // is content missing? | |
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171 if (_parser.getHeaderBuffer()==null || _parser.getHeaderBuffer().length()<2) |
826 | 172 { |
173 if (_generator.isCommitted()) | |
174 throw new IllegalStateException("Committed before 100 Continues"); | |
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175 |
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176 _generator.send1xx(HttpStatus.CONTINUE_100); |
826 | 177 } |
178 _expect100Continue=false; | |
179 } | |
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180 |
826 | 181 if (_in == null) |
981 | 182 _in = new HttpInput(); |
826 | 183 return _in; |
184 } | |
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185 |
826 | 186 /* ------------------------------------------------------------ */ |
187 /** | |
188 * @return The output stream for this connection. The stream will be created if it does not already exist. | |
189 */ | |
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190 public final ServletOutputStream getOutputStream() |
826 | 191 { |
192 if (_out == null) | |
193 _out = new Output(); | |
194 return _out; | |
195 } | |
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196 |
826 | 197 /* ------------------------------------------------------------ */ |
198 /** | |
199 * @param encoding the PrintWriter encoding | |
200 * @return A {@link PrintWriter} wrapping the {@link #getOutputStream output stream}. The writer is created if it | |
201 * does not already exist. | |
202 */ | |
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203 public final PrintWriter getPrintWriter(String encoding) |
826 | 204 { |
205 getOutputStream(); | |
206 if (_writer==null) | |
207 { | |
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208 _writer = new HttpWriter(_out); |
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209 _printWriter = new PrintWriter(_writer) |
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210 { |
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211 public void close() |
826 | 212 { |
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213 synchronized (lock) |
826 | 214 { |
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215 try |
826 | 216 { |
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217 out.close(); |
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218 } |
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219 catch (IOException e) |
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220 { |
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221 setError(); |
826 | 222 } |
223 } | |
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224 } |
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225 }; |
826 | 226 } |
227 _writer.setCharacterEncoding(encoding); | |
228 return _printWriter; | |
229 } | |
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230 |
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231 protected void reset() |
826 | 232 { |
233 _parser.reset(); | |
234 _parser.returnBuffers(); // TODO maybe only on unhandle | |
235 _requestFields.clear(); | |
236 _request.recycle(); | |
237 _generator.reset(); | |
238 _generator.returnBuffers();// TODO maybe only on unhandle | |
239 _responseFields.clear(); | |
240 _response.recycle(); | |
241 _uri.clear(); | |
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242 _writer = null; |
826 | 243 _earlyEOF = false; |
244 } | |
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245 |
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246 private void handleRequest() throws IOException |
826 | 247 { |
248 boolean error = false; | |
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249 |
826 | 250 try |
251 { | |
252 // Loop here to handle async request redispatches. | |
253 // The loop is controlled by the call to async.unhandle in the | |
254 // finally block below. If call is from a non-blocking connector, | |
255 // then the unhandle will return false only if an async dispatch has | |
256 // already happened when unhandle is called. For a blocking connector, | |
257 // the wait for the asynchronous dispatch or timeout actually happens | |
258 // within the call to unhandle(). | |
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259 |
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260 _request.setHandled(false); |
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261 |
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262 String info=null; |
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263 try |
826 | 264 { |
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265 _uri.getPort(); |
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266 String path = null; |
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267 |
826 | 268 try |
269 { | |
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270 path = _uri.getDecodedPath(); |
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271 } |
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272 catch (Exception e) |
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273 { |
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274 LOG.warn("Failed UTF-8 decode for request path, trying ISO-8859-1"); |
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275 LOG.trace("",e); |
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276 path = _uri.getDecodedPath(StringUtil.__ISO_8859_1); |
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277 } |
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278 |
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279 info = URIUtil.canonicalPath(path); |
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280 if (info==null && !_request.getMethod().equals(HttpMethods.CONNECT)) |
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281 { |
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282 if (path==null && _uri.getScheme()!=null && _uri.getHost()!=null) |
826 | 283 { |
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284 info="/"; |
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285 _request.setRequestURI(""); |
826 | 286 } |
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287 else |
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288 throw new HttpException(400); |
826 | 289 } |
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290 _request.setPathInfo(info); |
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291 |
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292 if (_out!=null) |
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293 _out.reopen(); |
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294 |
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295 _request.setDispatcherType(DispatcherType.REQUEST); |
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296 _connector.customize(_endp, _request); |
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297 _server.handle(this); |
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298 } |
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299 catch (EofException e) |
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300 { |
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301 LOG.debug("",e); |
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302 error=true; |
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303 _request.setHandled(true); |
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304 if (!_response.isCommitted()) |
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305 _generator.sendError(500, null, null, true); |
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306 } |
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307 catch (RuntimeIOException e) |
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308 { |
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309 LOG.debug("",e); |
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310 error=true; |
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311 _request.setHandled(true); |
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312 } |
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313 catch (HttpException e) |
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314 { |
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315 LOG.debug("",e); |
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316 error=true; |
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317 _request.setHandled(true); |
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318 _response.sendError(e.getStatus(), e.getReason()); |
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319 } |
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320 catch (Throwable e) |
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321 { |
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322 LOG.warn(String.valueOf(_uri),e); |
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323 error=true; |
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324 _request.setHandled(true); |
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325 _generator.sendError(info==null?400:500, null, null, true); |
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326 |
826 | 327 } |
328 } | |
329 finally | |
330 { | |
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331 if (_expect100Continue) |
826 | 332 { |
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333 LOG.debug("100 continues not sent"); |
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334 // We didn't send 100 continues, but the latest interpretation |
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335 // of the spec (see httpbis) is that the client will either |
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336 // send the body anyway, or close. So we no longer need to |
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337 // do anything special here other than make the connection not persistent |
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338 _expect100Continue = false; |
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339 if (!_response.isCommitted()) |
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340 _generator.setPersistent(false); |
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341 } |
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342 |
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343 if(_endp.isOpen()) |
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344 { |
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345 if (error) |
826 | 346 { |
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347 _endp.shutdownOutput(); |
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348 _generator.setPersistent(false); |
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349 if (!_generator.isComplete()) |
826 | 350 _response.complete(); |
351 } | |
352 else | |
353 { | |
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354 if (!_response.isCommitted() && !_request.isHandled()) |
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355 _response.sendError(HttpServletResponse.SC_NOT_FOUND); |
826 | 356 _response.complete(); |
357 } | |
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358 } |
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359 else |
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360 { |
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361 _response.complete(); |
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362 } |
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363 |
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364 _request.setHandled(true); |
826 | 365 } |
366 } | |
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367 |
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368 |
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369 public final void commitResponse(boolean last) throws IOException |
826 | 370 { |
371 if (!_generator.isCommitted()) | |
372 { | |
373 _generator.setResponse(_response.getStatus(), _response.getReason()); | |
374 try | |
375 { | |
376 // If the client was expecting 100 continues, but we sent something | |
377 // else, then we need to close the connection | |
378 if (_expect100Continue && _response.getStatus()!=100) | |
379 _generator.setPersistent(false); | |
380 _generator.completeHeader(_responseFields, last); | |
381 } | |
382 catch(RuntimeException e) | |
383 { | |
384 LOG.warn("header full: " + e); | |
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385 |
826 | 386 _response.reset(); |
387 _generator.reset(); | |
388 _generator.setResponse(HttpStatus.INTERNAL_SERVER_ERROR_500,null); | |
982 | 389 _generator.completeHeader(_responseFields,HttpGenerator.LAST); |
826 | 390 _generator.complete(); |
391 throw new HttpException(HttpStatus.INTERNAL_SERVER_ERROR_500); | |
392 } | |
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393 |
826 | 394 } |
395 if (last) | |
396 _generator.complete(); | |
397 } | |
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398 |
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399 public final void completeResponse() throws IOException |
826 | 400 { |
401 if (!_generator.isCommitted()) | |
402 { | |
403 _generator.setResponse(_response.getStatus(), _response.getReason()); | |
404 try | |
405 { | |
982 | 406 _generator.completeHeader(_responseFields, HttpGenerator.LAST); |
826 | 407 } |
408 catch(RuntimeException e) | |
409 { | |
410 LOG.warn("header full: "+e); | |
411 LOG.debug("",e); | |
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412 |
826 | 413 _response.reset(); |
414 _generator.reset(); | |
415 _generator.setResponse(HttpStatus.INTERNAL_SERVER_ERROR_500,null); | |
982 | 416 _generator.completeHeader(_responseFields,HttpGenerator.LAST); |
826 | 417 _generator.complete(); |
418 throw new HttpException(HttpStatus.INTERNAL_SERVER_ERROR_500); | |
419 } | |
420 } | |
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421 |
826 | 422 _generator.complete(); |
423 } | |
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424 |
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425 public final void flushResponse() throws IOException |
826 | 426 { |
427 try | |
428 { | |
982 | 429 commitResponse(HttpGenerator.MORE); |
826 | 430 _generator.flushBuffer(); |
431 } | |
432 catch(IOException e) | |
433 { | |
434 throw (e instanceof EofException) ? e:new EofException(e); | |
435 } | |
436 } | |
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437 |
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438 public final boolean isExpecting102Processing() |
826 | 439 { |
440 return _expect102Processing; | |
441 } | |
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442 |
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443 public final int getMaxIdleTime() |
826 | 444 { |
445 if (_connector.isLowResources() && _endp.getMaxIdleTime()==_connector.getMaxIdleTime()) | |
913 | 446 return 0; |
826 | 447 if (_endp.getMaxIdleTime()>0) |
448 return _endp.getMaxIdleTime(); | |
449 return _connector.getMaxIdleTime(); | |
450 } | |
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451 |
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452 @Override |
826 | 453 public String toString() |
454 { | |
455 return String.format("%s,g=%s,p=%s,r=%d", | |
456 super.toString(), | |
457 _generator, | |
458 _parser, | |
459 _requests); | |
460 } | |
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461 |
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462 private void startRequest(Buffer method, Buffer uri, Buffer version) throws IOException |
826 | 463 { |
464 uri=uri.asImmutableBuffer(); | |
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465 |
826 | 466 _host = false; |
467 _expect = false; | |
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468 _expect100Continue = false; |
826 | 469 _expect102Processing=false; |
470 _delayedHandling=false; | |
471 _charset=null; | |
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472 |
826 | 473 if(_request.getTimeStamp()==0) |
474 _request.setTimeStamp(System.currentTimeMillis()); | |
475 _request.setMethod(method.toString()); | |
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476 |
826 | 477 try |
478 { | |
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479 _head = false; |
826 | 480 switch (HttpMethods.CACHE.getOrdinal(method)) |
481 { | |
482 case HttpMethods.CONNECT_ORDINAL: | |
483 _uri.parseConnect(uri.array(), uri.getIndex(), uri.length()); | |
484 break; | |
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485 |
826 | 486 case HttpMethods.HEAD_ORDINAL: |
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487 _head = true; |
826 | 488 _uri.parse(uri.array(), uri.getIndex(), uri.length()); |
489 break; | |
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490 |
826 | 491 default: |
492 _uri.parse(uri.array(), uri.getIndex(), uri.length()); | |
493 } | |
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494 |
826 | 495 _request.setUri(_uri); |
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496 |
826 | 497 if (version==null) |
498 { | |
499 _request.setProtocol(HttpVersions.HTTP_0_9); | |
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500 _version = HttpVersions.HTTP_0_9_ORDINAL; |
826 | 501 } |
502 else | |
503 { | |
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504 version = HttpVersions.CACHE.get(version); |
826 | 505 if (version==null) |
506 throw new HttpException(HttpStatus.BAD_REQUEST_400,null); | |
507 _version = HttpVersions.CACHE.getOrdinal(version); | |
508 if (_version <= 0) _version = HttpVersions.HTTP_1_0_ORDINAL; | |
509 _request.setProtocol(version.toString()); | |
510 } | |
511 } | |
512 catch (Exception e) | |
513 { | |
514 LOG.debug("",e); | |
515 if (e instanceof HttpException) | |
516 throw (HttpException)e; | |
517 throw new HttpException(HttpStatus.BAD_REQUEST_400,null,e); | |
518 } | |
519 } | |
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520 |
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521 private void parsedHeader(Buffer name, Buffer value) throws IOException |
826 | 522 { |
523 int ho = HttpHeaders.CACHE.getOrdinal(name); | |
524 switch (ho) | |
525 { | |
526 case HttpHeaders.HOST_ORDINAL: | |
527 // TODO check if host matched a host in the URI. | |
528 _host = true; | |
529 break; | |
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530 |
826 | 531 case HttpHeaders.EXPECT_ORDINAL: |
532 if (_version>=HttpVersions.HTTP_1_1_ORDINAL) | |
533 { | |
534 value = HttpHeaderValues.CACHE.lookup(value); | |
535 switch(HttpHeaderValues.CACHE.getOrdinal(value)) | |
536 { | |
537 case HttpHeaderValues.CONTINUE_ORDINAL: | |
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538 _expect100Continue = true; |
826 | 539 break; |
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540 |
826 | 541 case HttpHeaderValues.PROCESSING_ORDINAL: |
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542 _expect102Processing = true; |
826 | 543 break; |
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544 |
826 | 545 default: |
546 String[] values = value.toString().split(","); | |
547 for (int i=0;values!=null && i<values.length;i++) | |
548 { | |
549 CachedBuffer cb=HttpHeaderValues.CACHE.get(values[i].trim()); | |
550 if (cb==null) | |
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551 _expect = true; |
826 | 552 else |
553 { | |
554 switch(cb.getOrdinal()) | |
555 { | |
556 case HttpHeaderValues.CONTINUE_ORDINAL: | |
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557 _expect100Continue = true; |
826 | 558 break; |
559 case HttpHeaderValues.PROCESSING_ORDINAL: | |
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560 _expect102Processing = true; |
826 | 561 break; |
562 default: | |
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563 _expect = true; |
826 | 564 } |
565 } | |
566 } | |
567 } | |
568 } | |
569 break; | |
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570 |
826 | 571 case HttpHeaders.ACCEPT_ENCODING_ORDINAL: |
572 case HttpHeaders.USER_AGENT_ORDINAL: | |
573 value = HttpHeaderValues.CACHE.lookup(value); | |
574 break; | |
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575 |
826 | 576 case HttpHeaders.CONTENT_TYPE_ORDINAL: |
577 value = MimeTypes.CACHE.lookup(value); | |
578 _charset=MimeTypes.getCharsetFromContentType(value); | |
579 break; | |
580 } | |
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581 |
826 | 582 _requestFields.add(name, value); |
583 } | |
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584 |
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585 private void headerComplete() throws IOException |
826 | 586 { |
587 // Handle idle race | |
588 if (_endp.isOutputShutdown()) | |
589 { | |
590 _endp.close(); | |
591 return; | |
592 } | |
593 | |
594 _requests++; | |
595 _generator.setVersion(_version); | |
596 switch (_version) | |
597 { | |
598 case HttpVersions.HTTP_0_9_ORDINAL: | |
599 break; | |
600 case HttpVersions.HTTP_1_0_ORDINAL: | |
601 _generator.setHead(_head); | |
602 if (_parser.isPersistent()) | |
603 { | |
604 _responseFields.add(HttpHeaders.CONNECTION_BUFFER, HttpHeaderValues.KEEP_ALIVE_BUFFER); | |
605 _generator.setPersistent(true); | |
606 } | |
607 else if (HttpMethods.CONNECT.equals(_request.getMethod())) | |
608 { | |
609 _generator.setPersistent(true); | |
610 _parser.setPersistent(true); | |
611 } | |
612 break; | |
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613 |
826 | 614 case HttpVersions.HTTP_1_1_ORDINAL: |
615 _generator.setHead(_head); | |
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616 |
826 | 617 if (!_parser.isPersistent()) |
618 { | |
619 _responseFields.add(HttpHeaders.CONNECTION_BUFFER,HttpHeaderValues.CLOSE_BUFFER); | |
620 _generator.setPersistent(false); | |
621 } | |
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622 |
826 | 623 if (!_host) |
624 { | |
625 LOG.debug("!host {}",this); | |
626 _generator.setResponse(HttpStatus.BAD_REQUEST_400, null); | |
627 _responseFields.put(HttpHeaders.CONNECTION_BUFFER, HttpHeaderValues.CLOSE_BUFFER); | |
628 _generator.completeHeader(_responseFields, true); | |
629 _generator.complete(); | |
630 return; | |
631 } | |
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632 |
826 | 633 if (_expect) |
634 { | |
635 LOG.debug("!expectation {}",this); | |
636 _generator.setResponse(HttpStatus.EXPECTATION_FAILED_417, null); | |
637 _responseFields.put(HttpHeaders.CONNECTION_BUFFER, HttpHeaderValues.CLOSE_BUFFER); | |
638 _generator.completeHeader(_responseFields, true); | |
639 _generator.complete(); | |
640 return; | |
641 } | |
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642 |
826 | 643 break; |
644 default: | |
645 } | |
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646 |
826 | 647 if(_charset!=null) |
648 _request.setCharacterEncodingUnchecked(_charset); | |
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649 |
826 | 650 // Either handle now or wait for first content |
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651 if ((_parser.getContentLength()<=0 && !_parser.isChunking())||_expect100Continue) |
826 | 652 handleRequest(); |
653 else | |
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654 _delayedHandling = true; |
826 | 655 } |
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656 |
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657 private void content(Buffer buffer) throws IOException |
826 | 658 { |
659 if (_delayedHandling) | |
660 { | |
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661 _delayedHandling = false; |
826 | 662 handleRequest(); |
663 } | |
664 } | |
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665 |
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666 private void messageComplete(long contentLength) throws IOException |
826 | 667 { |
668 if (_delayedHandling) | |
669 { | |
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670 _delayedHandling = false; |
826 | 671 handleRequest(); |
672 } | |
673 } | |
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674 |
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675 private void earlyEOF() |
826 | 676 { |
677 _earlyEOF = true; | |
678 } | |
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679 |
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680 |
980 | 681 private class RequestHandler implements HttpParser.EventHandler |
826 | 682 { |
683 @Override | |
684 public void startRequest(Buffer method, Buffer uri, Buffer version) throws IOException | |
685 { | |
686 AbstractHttpConnection.this.startRequest(method, uri, version); | |
687 } | |
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688 |
826 | 689 @Override |
690 public void parsedHeader(Buffer name, Buffer value) throws IOException | |
691 { | |
692 AbstractHttpConnection.this.parsedHeader(name, value); | |
693 } | |
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694 |
826 | 695 @Override |
696 public void headerComplete() throws IOException | |
697 { | |
698 AbstractHttpConnection.this.headerComplete(); | |
699 } | |
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700 |
826 | 701 @Override |
702 public void content(Buffer ref) throws IOException | |
703 { | |
704 AbstractHttpConnection.this.content(ref); | |
705 } | |
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706 |
826 | 707 @Override |
708 public void messageComplete(long contentLength) throws IOException | |
709 { | |
710 AbstractHttpConnection.this.messageComplete(contentLength); | |
711 } | |
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712 |
826 | 713 @Override |
714 public void earlyEOF() | |
715 { | |
716 AbstractHttpConnection.this.earlyEOF(); | |
717 } | |
718 } | |
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719 |
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720 |
985 | 721 public final class Output extends ServletOutputStream |
826 | 722 { |
985 | 723 private boolean _closed; |
724 private ByteArrayBuffer _onebyte; | |
725 | |
726 // These are held here for reuse by Writer | |
727 String _characterEncoding; | |
728 Writer _converter; | |
729 char[] _chars; | |
730 ByteArrayOutputStream2 _bytes; | |
731 | |
732 public final void reopen() | |
733 { | |
734 _closed = false; | |
735 } | |
736 | |
737 @Override | |
738 public final void write(byte[] b, int off, int len) throws IOException | |
739 { | |
740 write(new ByteArrayBuffer(b,off,len)); | |
741 } | |
742 | |
743 @Override | |
744 public final void write(byte[] b) throws IOException | |
745 { | |
746 write(new ByteArrayBuffer(b)); | |
747 } | |
748 | |
749 @Override | |
750 public final void write(int b) throws IOException | |
826 | 751 { |
985 | 752 if (_onebyte==null) |
753 _onebyte = new ByteArrayBuffer(1); | |
754 else | |
755 _onebyte.clear(); | |
756 _onebyte.put((byte)b); | |
757 write(_onebyte); | |
826 | 758 } |
985 | 759 |
760 private void write(Buffer buffer) throws IOException | |
761 { | |
762 if (_closed) | |
763 throw new IOException("Closed"); | |
764 if (!_generator.isOpen()) | |
765 throw new EofException(); | |
766 | |
767 // Block until we can add _content. | |
768 while (_generator.isBufferFull()) | |
769 { | |
770 _generator.blockForOutput(getMaxIdleTime()); | |
771 if (_closed) | |
772 throw new IOException("Closed"); | |
773 if (!_generator.isOpen()) | |
774 throw new EofException(); | |
775 } | |
776 | |
777 // Add the _content | |
778 _generator.addContent(buffer, HttpGenerator.MORE); | |
779 | |
780 // Have to flush and complete headers? | |
781 | |
782 if (_generator.isAllContentWritten()) | |
783 { | |
784 flush(); | |
785 close(); | |
786 } | |
787 else if (_generator.isBufferFull()) | |
788 commitResponse(HttpGenerator.MORE); | |
789 | |
790 // Block until our buffer is free | |
791 while (buffer.length() > 0 && _generator.isOpen()) | |
792 { | |
793 _generator.blockForOutput(getMaxIdleTime()); | |
794 } | |
795 } | |
796 | |
797 | |
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798 |
826 | 799 /* ------------------------------------------------------------ */ |
800 /* | |
801 * @see java.io.OutputStream#close() | |
802 */ | |
803 @Override | |
804 public void close() throws IOException | |
805 { | |
985 | 806 if (_closed) |
826 | 807 return; |
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|
808 |
985 | 809 if (!_generator.isCommitted()) |
982 | 810 commitResponse(HttpGenerator.LAST); |
826 | 811 else |
812 flushResponse(); | |
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813 |
985 | 814 _closed = true; |
826 | 815 } |
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parents:
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816 |
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817 |
826 | 818 /* ------------------------------------------------------------ */ |
819 /* | |
820 * @see java.io.OutputStream#flush() | |
821 */ | |
822 @Override | |
823 public void flush() throws IOException | |
824 { | |
985 | 825 if (!_generator.isCommitted()) |
982 | 826 commitResponse(HttpGenerator.MORE); |
985 | 827 _generator.flush(getMaxIdleTime()); |
826 | 828 } |
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829 |
826 | 830 /* ------------------------------------------------------------ */ |
831 /* | |
832 * @see javax.servlet.ServletOutputStream#print(java.lang.String) | |
833 */ | |
834 @Override | |
835 public void print(String s) throws IOException | |
836 { | |
985 | 837 if (_closed) |
826 | 838 throw new IOException("Closed"); |
985 | 839 PrintWriter writer = getPrintWriter(null); |
826 | 840 writer.print(s); |
841 } | |
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842 |
826 | 843 public void sendResponse(Buffer response) throws IOException |
844 { | |
985 | 845 _generator.sendResponse(response); |
826 | 846 } |
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847 |
826 | 848 public void sendContent(Object content) throws IOException |
849 { | |
850 Resource resource=null; | |
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851 |
985 | 852 if (_closed) |
826 | 853 throw new IOException("Closed"); |
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854 |
985 | 855 if (_generator.isWritten()) |
826 | 856 throw new IllegalStateException("!empty"); |
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857 |
826 | 858 if (content instanceof Resource) |
859 { | |
860 resource=(Resource)content; | |
861 _responseFields.putDateField(HttpHeaders.LAST_MODIFIED_BUFFER, resource.lastModified()); | |
862 content=resource.getInputStream(); | |
863 } | |
864 | |
865 // Process content. | |
866 if (content instanceof Buffer) | |
867 { | |
985 | 868 _generator.addContent((Buffer) content, HttpGenerator.LAST); |
982 | 869 commitResponse(HttpGenerator.LAST); |
826 | 870 } |
871 else if (content instanceof InputStream) | |
872 { | |
873 InputStream in = (InputStream)content; | |
874 | |
875 try | |
876 { | |
985 | 877 int max = _generator.prepareUncheckedAddContent(); |
878 Buffer buffer = _generator.getUncheckedBuffer(); | |
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879 |
826 | 880 int len=buffer.readFrom(in,max); |
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881 |
826 | 882 while (len>=0) |
883 { | |
985 | 884 _generator.completeUncheckedAddContent(); |
826 | 885 _out.flush(); |
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886 |
985 | 887 max = _generator.prepareUncheckedAddContent(); |
888 buffer = _generator.getUncheckedBuffer(); | |
826 | 889 len=buffer.readFrom(in,max); |
890 } | |
985 | 891 _generator.completeUncheckedAddContent(); |
826 | 892 _out.flush(); |
893 } | |
894 finally | |
895 { | |
896 if (resource!=null) | |
897 resource.release(); | |
898 else | |
899 in.close(); | |
900 } | |
901 } | |
902 else | |
903 throw new IllegalArgumentException("unknown content type?"); | |
981 | 904 } |
905 } | |
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906 |
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907 |
981 | 908 private final class HttpInput extends ServletInputStream |
909 { | |
910 /* ------------------------------------------------------------ */ | |
911 /* | |
912 * @see java.io.InputStream#read() | |
913 */ | |
914 @Override | |
915 public int read() throws IOException | |
916 { | |
917 byte[] bytes = new byte[1]; | |
918 int read = read(bytes, 0, 1); | |
919 return read < 0 ? -1 : 0xff & bytes[0]; | |
920 } | |
921 | |
922 /* ------------------------------------------------------------ */ | |
923 /* | |
924 * @see java.io.InputStream#read(byte[], int, int) | |
925 */ | |
926 @Override | |
927 public int read(byte[] b, int off, int len) throws IOException | |
928 { | |
929 int l = -1; | |
930 Buffer content = _parser.blockForContent(getMaxIdleTime()); | |
931 if (content!=null) | |
932 l = content.get(b, off, len); | |
933 else if (_earlyEOF) | |
934 throw new EofException("early EOF"); | |
935 return l; | |
936 } | |
937 | |
938 @Override | |
939 public int available() throws IOException | |
940 { | |
941 return _parser.available(); | |
826 | 942 } |
943 } | |
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944 |
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945 } |