Mercurial Hosting > luan
annotate src/org/eclipse/jetty/server/AbstractHttpConnection.java @ 999:74b9daf2826c
simplify Response
| author | Franklin Schmidt <fschmidt@gmail.com> |
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| date | Wed, 19 Oct 2016 00:59:46 -0600 |
| parents | d9cfec64899c |
| children | 39154cfa58e4 |
| rev | line source |
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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.ServletInputStream; |
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27 import javax.servlet.ServletOutputStream; |
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28 import javax.servlet.http.HttpServletRequest; |
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29 import javax.servlet.http.HttpServletResponse; |
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30 |
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31 import org.eclipse.jetty.http.EncodedHttpURI; |
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32 import org.eclipse.jetty.http.HttpBuffers; |
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33 import org.eclipse.jetty.http.HttpException; |
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34 import org.eclipse.jetty.http.HttpFields; |
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35 import org.eclipse.jetty.http.HttpGenerator; |
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36 import org.eclipse.jetty.http.HttpHeaderValues; |
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37 import org.eclipse.jetty.http.HttpHeaders; |
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38 import org.eclipse.jetty.http.HttpMethods; |
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39 import org.eclipse.jetty.http.HttpParser; |
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40 import org.eclipse.jetty.http.HttpStatus; |
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41 import org.eclipse.jetty.http.HttpURI; |
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42 import org.eclipse.jetty.http.HttpVersions; |
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43 import org.eclipse.jetty.http.MimeTypes; |
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44 import org.eclipse.jetty.io.AbstractConnection; |
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45 import org.eclipse.jetty.io.Buffer; |
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46 import org.eclipse.jetty.io.BufferCache.CachedBuffer; |
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47 import org.eclipse.jetty.io.Buffers; |
| 985 | 48 import org.eclipse.jetty.io.ByteArrayBuffer; |
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49 import org.eclipse.jetty.io.EndPoint; |
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50 import org.eclipse.jetty.io.EofException; |
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51 import org.eclipse.jetty.io.RuntimeIOException; |
| 985 | 52 import org.eclipse.jetty.util.ByteArrayOutputStream2; |
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53 import org.eclipse.jetty.util.QuotedStringTokenizer; |
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54 import org.eclipse.jetty.util.StringUtil; |
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55 import org.eclipse.jetty.util.URIUtil; |
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56 import org.slf4j.Logger; |
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57 import org.slf4j.LoggerFactory; |
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58 import org.eclipse.jetty.util.resource.Resource; |
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59 |
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60 /** |
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61 * <p>A HttpConnection represents the connection of a HTTP client to the server |
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62 * and is created by an instance of a {@link Connector}. It's prime function is |
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63 * to associate {@link Request} and {@link Response} instances with a {@link EndPoint}. |
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64 * </p> |
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65 * <p> |
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66 * A connection is also the prime mechanism used by jetty to recycle objects without |
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67 * pooling. The {@link Request}, {@link Response}, {@link HttpParser}, {@link HttpGenerator} |
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68 * and {@link HttpFields} instances are all recycled for the duraction of |
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69 * a connection. Where appropriate, allocated buffers are also kept associated |
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70 * with the connection via the parser and/or generator. |
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71 * </p> |
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72 * <p> |
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73 * The connection state is held by 3 separate state machines: The request state, the |
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74 * response state and the continuation state. All three state machines must be driven |
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75 * to completion for every request, and all three can complete in any order. |
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76 * </p> |
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77 * <p> |
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78 * The HttpConnection support protocol upgrade. If on completion of a request, the |
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79 * response code is 101 (switch protocols), then the org.eclipse.jetty.io.Connection |
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80 * request attribute is checked to see if there is a new Connection instance. If so, |
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81 * the new connection is returned from {@link #handle()} and is used for future |
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82 * handling of the underlying connection. Note that for switching protocols that |
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83 * don't use 101 responses (eg CONNECT), the response should be sent and then the |
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84 * status code changed to 101 before returning from the handler. Implementors |
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85 * of new Connection types should be careful to extract any buffered data from |
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86 * (HttpParser)http.getParser()).getHeaderBuffer() and |
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87 * (HttpParser)http.getParser()).getBodyBuffer() to initialise their new connection. |
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88 * </p> |
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89 * |
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90 */ |
| 982 | 91 public abstract class AbstractHttpConnection extends AbstractConnection |
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92 { |
| 826 | 93 private static final Logger LOG = LoggerFactory.getLogger(AbstractHttpConnection.class); |
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94 |
| 826 | 95 private int _requests; |
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96 |
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97 private final Connector _connector; |
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98 private final Server _server; |
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99 protected final HttpURI _uri = StringUtil.__UTF8.equals(URIUtil.__CHARSET)?new HttpURI():new EncodedHttpURI(URIUtil.__CHARSET); |
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100 |
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101 protected final HttpParser _parser; |
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102 protected final HttpFields _requestFields = new HttpFields(); |
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103 private final Request _request; |
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104 private volatile ServletInputStream _in; |
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105 |
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106 protected final HttpGenerator _generator; |
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107 final HttpFields _responseFields = new HttpFields(); |
| 826 | 108 protected final Response _response; |
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109 private volatile Output _out; |
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110 private volatile HttpWriter _writer; |
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111 private volatile PrintWriter _printWriter; |
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112 |
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113 private int _version = -2; // UNKNOWN |
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114 |
| 826 | 115 private String _charset; |
| 116 private boolean _expect = false; | |
| 117 private boolean _expect100Continue = false; | |
| 118 private boolean _head = false; | |
| 119 private boolean _host = false; | |
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120 private boolean _delayedHandling = false; |
| 826 | 121 private boolean _earlyEOF = false; |
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122 |
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123 protected AbstractHttpConnection(Connector connector, EndPoint endpoint) |
| 826 | 124 { |
| 125 super(endpoint); | |
| 126 _connector = connector; | |
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127 HttpBuffers ab = _connector; |
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128 _parser = new HttpParser(ab.getRequestBuffers(), endpoint, new RequestHandler()); |
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129 _request = new Request(this); |
| 826 | 130 _response = new Response(this); |
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131 _generator = new HttpGenerator(ab.getResponseBuffers(), endpoint); |
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132 _server = connector.server; |
| 826 | 133 } |
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134 |
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135 public final Connector getConnector() |
| 826 | 136 { |
| 137 return _connector; | |
| 138 } | |
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139 |
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140 public final Request getRequest() |
| 826 | 141 { |
| 142 return _request; | |
| 143 } | |
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144 |
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145 public final Response getResponse() |
| 826 | 146 { |
| 147 return _response; | |
| 148 } | |
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149 |
| 826 | 150 /* ------------------------------------------------------------ */ |
| 151 /** | |
| 152 * Get the inputStream from the connection. | |
| 153 * <p> | |
| 154 * If the associated response has the Expect header set to 100 Continue, | |
| 155 * then accessing the input stream indicates that the handler/servlet | |
| 156 * is ready for the request body and thus a 100 Continue response is sent. | |
| 157 * | |
| 158 * @return The input stream for this connection. | |
| 159 * The stream will be created if it does not already exist. | |
| 160 * @throws IOException if the input stream cannot be retrieved | |
| 161 */ | |
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162 public final ServletInputStream getInputStream() throws IOException |
| 826 | 163 { |
| 164 // If the client is expecting 100 CONTINUE, then send it now. | |
| 165 if (_expect100Continue) | |
| 166 { | |
| 167 // is content missing? | |
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168 if (_parser.getHeaderBuffer()==null || _parser.getHeaderBuffer().length()<2) |
| 826 | 169 { |
| 170 if (_generator.isCommitted()) | |
| 171 throw new IllegalStateException("Committed before 100 Continues"); | |
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172 |
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173 _generator.send1xx(HttpStatus.CONTINUE_100); |
| 826 | 174 } |
| 175 _expect100Continue=false; | |
| 176 } | |
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177 |
| 826 | 178 if (_in == null) |
| 981 | 179 _in = new HttpInput(); |
| 826 | 180 return _in; |
| 181 } | |
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182 |
| 826 | 183 /* ------------------------------------------------------------ */ |
| 184 /** | |
| 185 * @return The output stream for this connection. The stream will be created if it does not already exist. | |
| 186 */ | |
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187 public final ServletOutputStream getOutputStream() |
| 826 | 188 { |
| 189 if (_out == null) | |
| 190 _out = new Output(); | |
| 191 return _out; | |
| 192 } | |
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193 |
| 826 | 194 /* ------------------------------------------------------------ */ |
| 195 /** | |
| 196 * @param encoding the PrintWriter encoding | |
| 197 * @return A {@link PrintWriter} wrapping the {@link #getOutputStream output stream}. The writer is created if it | |
| 198 * does not already exist. | |
| 199 */ | |
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200 public final PrintWriter getPrintWriter(String encoding) |
| 826 | 201 { |
| 202 getOutputStream(); | |
| 203 if (_writer==null) | |
| 204 { | |
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205 _writer = new HttpWriter(_out); |
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206 _printWriter = new PrintWriter(_writer) |
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207 { |
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208 public void close() |
| 826 | 209 { |
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210 synchronized (lock) |
| 826 | 211 { |
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212 try |
| 826 | 213 { |
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214 out.close(); |
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215 } |
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216 catch (IOException e) |
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217 { |
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218 setError(); |
| 826 | 219 } |
| 220 } | |
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221 } |
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222 }; |
| 826 | 223 } |
| 224 _writer.setCharacterEncoding(encoding); | |
| 225 return _printWriter; | |
| 226 } | |
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227 |
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228 protected void reset() |
| 826 | 229 { |
| 230 _parser.reset(); | |
| 231 _parser.returnBuffers(); // TODO maybe only on unhandle | |
| 232 _requestFields.clear(); | |
| 233 _request.recycle(); | |
| 234 _generator.reset(); | |
| 235 _generator.returnBuffers();// TODO maybe only on unhandle | |
| 236 _responseFields.clear(); | |
| 237 _response.recycle(); | |
| 238 _uri.clear(); | |
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239 _writer = null; |
| 826 | 240 _earlyEOF = false; |
| 241 } | |
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242 |
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243 private void handleRequest() throws IOException |
| 826 | 244 { |
| 245 boolean error = false; | |
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246 |
| 826 | 247 try |
| 248 { | |
| 249 // Loop here to handle async request redispatches. | |
| 250 // The loop is controlled by the call to async.unhandle in the | |
| 251 // finally block below. If call is from a non-blocking connector, | |
| 252 // then the unhandle will return false only if an async dispatch has | |
| 253 // already happened when unhandle is called. For a blocking connector, | |
| 254 // the wait for the asynchronous dispatch or timeout actually happens | |
| 255 // within the call to unhandle(). | |
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256 |
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257 _request.setHandled(false); |
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258 |
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259 String info=null; |
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260 try |
| 826 | 261 { |
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262 _uri.getPort(); |
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263 String path = null; |
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264 |
| 826 | 265 try |
| 266 { | |
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267 path = _uri.getDecodedPath(); |
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268 } |
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269 catch (Exception e) |
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270 { |
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271 LOG.warn("Failed UTF-8 decode for request path, trying ISO-8859-1"); |
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272 LOG.trace("",e); |
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273 path = _uri.getDecodedPath(StringUtil.__ISO_8859_1); |
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274 } |
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275 |
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276 info = URIUtil.canonicalPath(path); |
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277 if (info==null && !_request.getMethod().equals(HttpMethods.CONNECT)) |
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278 { |
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279 if (path==null && _uri.getScheme()!=null && _uri.getHost()!=null) |
| 826 | 280 { |
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281 info="/"; |
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282 _request.setRequestURI(""); |
| 826 | 283 } |
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284 else |
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285 throw new HttpException(400); |
| 826 | 286 } |
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287 _request.setPathInfo(info); |
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288 |
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289 if (_out!=null) |
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290 _out.reopen(); |
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291 |
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292 _connector.customize(_endp, _request); |
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293 _server.handle(this); |
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294 } |
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295 catch (EofException e) |
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296 { |
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297 LOG.debug("",e); |
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298 error=true; |
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299 _request.setHandled(true); |
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300 if (!_response.isCommitted()) |
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301 _generator.sendError(500, null, null, true); |
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302 } |
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303 catch (RuntimeIOException e) |
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304 { |
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305 LOG.debug("",e); |
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306 error=true; |
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307 _request.setHandled(true); |
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308 } |
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309 catch (HttpException e) |
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310 { |
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311 LOG.debug("",e); |
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312 error=true; |
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313 _request.setHandled(true); |
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314 _response.sendError(e.getStatus(), e.getReason()); |
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315 } |
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316 catch (Throwable e) |
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317 { |
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318 LOG.warn(String.valueOf(_uri),e); |
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319 error=true; |
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320 _request.setHandled(true); |
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321 _generator.sendError(info==null?400:500, null, null, true); |
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322 |
| 826 | 323 } |
| 324 } | |
| 325 finally | |
| 326 { | |
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327 if (_expect100Continue) |
| 826 | 328 { |
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329 LOG.debug("100 continues not sent"); |
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330 // We didn't send 100 continues, but the latest interpretation |
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331 // of the spec (see httpbis) is that the client will either |
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332 // send the body anyway, or close. So we no longer need to |
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333 // do anything special here other than make the connection not persistent |
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334 _expect100Continue = false; |
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335 if (!_response.isCommitted()) |
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336 _generator.setPersistent(false); |
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337 } |
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338 |
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339 if(_endp.isOpen()) |
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340 { |
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341 if (error) |
| 826 | 342 { |
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343 _endp.shutdownOutput(); |
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344 _generator.setPersistent(false); |
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345 if (!_generator.isComplete()) |
| 826 | 346 _response.complete(); |
| 347 } | |
| 348 else | |
| 349 { | |
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350 if (!_response.isCommitted() && !_request.isHandled()) |
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351 _response.sendError(HttpServletResponse.SC_NOT_FOUND); |
| 826 | 352 _response.complete(); |
| 353 } | |
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354 } |
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355 else |
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356 { |
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357 _response.complete(); |
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358 } |
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359 |
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360 _request.setHandled(true); |
| 826 | 361 } |
| 362 } | |
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363 |
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364 |
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365 public final void commitResponse(boolean last) throws IOException |
| 826 | 366 { |
| 367 if (!_generator.isCommitted()) | |
| 368 { | |
| 369 _generator.setResponse(_response.getStatus(), _response.getReason()); | |
| 370 try | |
| 371 { | |
| 372 // If the client was expecting 100 continues, but we sent something | |
| 373 // else, then we need to close the connection | |
| 374 if (_expect100Continue && _response.getStatus()!=100) | |
| 375 _generator.setPersistent(false); | |
| 376 _generator.completeHeader(_responseFields, last); | |
| 377 } | |
| 378 catch(RuntimeException e) | |
| 379 { | |
| 380 LOG.warn("header full: " + e); | |
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381 |
| 826 | 382 _response.reset(); |
| 383 _generator.reset(); | |
| 384 _generator.setResponse(HttpStatus.INTERNAL_SERVER_ERROR_500,null); | |
| 982 | 385 _generator.completeHeader(_responseFields,HttpGenerator.LAST); |
| 826 | 386 _generator.complete(); |
| 387 throw new HttpException(HttpStatus.INTERNAL_SERVER_ERROR_500); | |
| 388 } | |
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389 |
| 826 | 390 } |
| 391 if (last) | |
| 392 _generator.complete(); | |
| 393 } | |
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394 |
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395 public final void completeResponse() throws IOException |
| 826 | 396 { |
| 397 if (!_generator.isCommitted()) | |
| 398 { | |
| 399 _generator.setResponse(_response.getStatus(), _response.getReason()); | |
| 400 try | |
| 401 { | |
| 982 | 402 _generator.completeHeader(_responseFields, HttpGenerator.LAST); |
| 826 | 403 } |
| 404 catch(RuntimeException e) | |
| 405 { | |
| 406 LOG.warn("header full: "+e); | |
| 407 LOG.debug("",e); | |
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408 |
| 826 | 409 _response.reset(); |
| 410 _generator.reset(); | |
| 411 _generator.setResponse(HttpStatus.INTERNAL_SERVER_ERROR_500,null); | |
| 982 | 412 _generator.completeHeader(_responseFields,HttpGenerator.LAST); |
| 826 | 413 _generator.complete(); |
| 414 throw new HttpException(HttpStatus.INTERNAL_SERVER_ERROR_500); | |
| 415 } | |
| 416 } | |
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417 |
| 826 | 418 _generator.complete(); |
| 419 } | |
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420 |
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421 public final void flushResponse() throws IOException |
| 826 | 422 { |
| 423 try | |
| 424 { | |
| 982 | 425 commitResponse(HttpGenerator.MORE); |
| 826 | 426 _generator.flushBuffer(); |
| 427 } | |
| 428 catch(IOException e) | |
| 429 { | |
| 430 throw (e instanceof EofException) ? e:new EofException(e); | |
| 431 } | |
| 432 } | |
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433 |
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434 public final int getMaxIdleTime() |
| 826 | 435 { |
| 996 | 436 if (_connector.server.isLowOnThreads() && _endp.getMaxIdleTime()==_connector.getMaxIdleTime()) |
| 913 | 437 return 0; |
| 826 | 438 if (_endp.getMaxIdleTime()>0) |
| 439 return _endp.getMaxIdleTime(); | |
| 440 return _connector.getMaxIdleTime(); | |
| 441 } | |
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442 |
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443 @Override |
| 826 | 444 public String toString() |
| 445 { | |
| 446 return String.format("%s,g=%s,p=%s,r=%d", | |
| 447 super.toString(), | |
| 448 _generator, | |
| 449 _parser, | |
| 450 _requests); | |
| 451 } | |
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452 |
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453 private void startRequest(Buffer method, Buffer uri, Buffer version) throws IOException |
| 826 | 454 { |
| 455 uri=uri.asImmutableBuffer(); | |
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456 |
| 826 | 457 _host = false; |
| 458 _expect = false; | |
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459 _expect100Continue = false; |
| 826 | 460 _delayedHandling=false; |
| 461 _charset=null; | |
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462 |
| 826 | 463 if(_request.getTimeStamp()==0) |
| 464 _request.setTimeStamp(System.currentTimeMillis()); | |
| 465 _request.setMethod(method.toString()); | |
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466 |
| 826 | 467 try |
| 468 { | |
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469 _head = false; |
| 826 | 470 switch (HttpMethods.CACHE.getOrdinal(method)) |
| 471 { | |
| 472 case HttpMethods.CONNECT_ORDINAL: | |
| 473 _uri.parseConnect(uri.array(), uri.getIndex(), uri.length()); | |
| 474 break; | |
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475 |
| 826 | 476 case HttpMethods.HEAD_ORDINAL: |
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477 _head = true; |
| 826 | 478 _uri.parse(uri.array(), uri.getIndex(), uri.length()); |
| 479 break; | |
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480 |
| 826 | 481 default: |
| 482 _uri.parse(uri.array(), uri.getIndex(), uri.length()); | |
| 483 } | |
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484 |
| 826 | 485 _request.setUri(_uri); |
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486 |
| 826 | 487 if (version==null) |
| 488 { | |
| 489 _request.setProtocol(HttpVersions.HTTP_0_9); | |
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490 _version = HttpVersions.HTTP_0_9_ORDINAL; |
| 826 | 491 } |
| 492 else | |
| 493 { | |
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494 version = HttpVersions.CACHE.get(version); |
| 826 | 495 if (version==null) |
| 496 throw new HttpException(HttpStatus.BAD_REQUEST_400,null); | |
| 497 _version = HttpVersions.CACHE.getOrdinal(version); | |
| 498 if (_version <= 0) _version = HttpVersions.HTTP_1_0_ORDINAL; | |
| 499 _request.setProtocol(version.toString()); | |
| 500 } | |
| 501 } | |
| 502 catch (Exception e) | |
| 503 { | |
| 504 LOG.debug("",e); | |
| 505 if (e instanceof HttpException) | |
| 506 throw (HttpException)e; | |
| 507 throw new HttpException(HttpStatus.BAD_REQUEST_400,null,e); | |
| 508 } | |
| 509 } | |
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510 |
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511 private void parsedHeader(Buffer name, Buffer value) throws IOException |
| 826 | 512 { |
| 513 int ho = HttpHeaders.CACHE.getOrdinal(name); | |
| 514 switch (ho) | |
| 515 { | |
| 516 case HttpHeaders.HOST_ORDINAL: | |
| 517 // TODO check if host matched a host in the URI. | |
| 518 _host = true; | |
| 519 break; | |
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520 |
| 826 | 521 case HttpHeaders.EXPECT_ORDINAL: |
| 522 if (_version>=HttpVersions.HTTP_1_1_ORDINAL) | |
| 523 { | |
| 524 value = HttpHeaderValues.CACHE.lookup(value); | |
| 525 switch(HttpHeaderValues.CACHE.getOrdinal(value)) | |
| 526 { | |
| 527 case HttpHeaderValues.CONTINUE_ORDINAL: | |
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528 _expect100Continue = true; |
| 826 | 529 break; |
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530 |
| 826 | 531 default: |
| 532 String[] values = value.toString().split(","); | |
| 533 for (int i=0;values!=null && i<values.length;i++) | |
| 534 { | |
| 535 CachedBuffer cb=HttpHeaderValues.CACHE.get(values[i].trim()); | |
| 536 if (cb==null) | |
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537 _expect = true; |
| 826 | 538 else |
| 539 { | |
| 540 switch(cb.getOrdinal()) | |
| 541 { | |
| 542 case HttpHeaderValues.CONTINUE_ORDINAL: | |
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543 _expect100Continue = true; |
| 826 | 544 break; |
| 545 default: | |
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546 _expect = true; |
| 826 | 547 } |
| 548 } | |
| 549 } | |
| 550 } | |
| 551 } | |
| 552 break; | |
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553 |
| 826 | 554 case HttpHeaders.ACCEPT_ENCODING_ORDINAL: |
| 555 case HttpHeaders.USER_AGENT_ORDINAL: | |
| 556 value = HttpHeaderValues.CACHE.lookup(value); | |
| 557 break; | |
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558 |
| 826 | 559 case HttpHeaders.CONTENT_TYPE_ORDINAL: |
| 560 value = MimeTypes.CACHE.lookup(value); | |
| 561 _charset=MimeTypes.getCharsetFromContentType(value); | |
| 562 break; | |
| 563 } | |
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564 |
| 826 | 565 _requestFields.add(name, value); |
| 566 } | |
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567 |
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568 private void headerComplete() throws IOException |
| 826 | 569 { |
| 570 // Handle idle race | |
| 571 if (_endp.isOutputShutdown()) | |
| 572 { | |
| 573 _endp.close(); | |
| 574 return; | |
| 575 } | |
| 576 | |
| 577 _requests++; | |
| 578 _generator.setVersion(_version); | |
| 579 switch (_version) | |
| 580 { | |
| 581 case HttpVersions.HTTP_0_9_ORDINAL: | |
| 582 break; | |
| 583 case HttpVersions.HTTP_1_0_ORDINAL: | |
| 584 _generator.setHead(_head); | |
| 585 if (_parser.isPersistent()) | |
| 586 { | |
| 587 _responseFields.add(HttpHeaders.CONNECTION_BUFFER, HttpHeaderValues.KEEP_ALIVE_BUFFER); | |
| 588 _generator.setPersistent(true); | |
| 589 } | |
| 590 else if (HttpMethods.CONNECT.equals(_request.getMethod())) | |
| 591 { | |
| 592 _generator.setPersistent(true); | |
| 593 _parser.setPersistent(true); | |
| 594 } | |
| 595 break; | |
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596 |
| 826 | 597 case HttpVersions.HTTP_1_1_ORDINAL: |
| 598 _generator.setHead(_head); | |
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599 |
| 826 | 600 if (!_parser.isPersistent()) |
| 601 { | |
| 602 _responseFields.add(HttpHeaders.CONNECTION_BUFFER,HttpHeaderValues.CLOSE_BUFFER); | |
| 603 _generator.setPersistent(false); | |
| 604 } | |
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605 |
| 826 | 606 if (!_host) |
| 607 { | |
| 608 LOG.debug("!host {}",this); | |
| 609 _generator.setResponse(HttpStatus.BAD_REQUEST_400, null); | |
| 610 _responseFields.put(HttpHeaders.CONNECTION_BUFFER, HttpHeaderValues.CLOSE_BUFFER); | |
| 611 _generator.completeHeader(_responseFields, true); | |
| 612 _generator.complete(); | |
| 613 return; | |
| 614 } | |
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|
615 |
| 826 | 616 if (_expect) |
| 617 { | |
| 618 LOG.debug("!expectation {}",this); | |
| 619 _generator.setResponse(HttpStatus.EXPECTATION_FAILED_417, null); | |
| 620 _responseFields.put(HttpHeaders.CONNECTION_BUFFER, HttpHeaderValues.CLOSE_BUFFER); | |
| 621 _generator.completeHeader(_responseFields, true); | |
| 622 _generator.complete(); | |
| 623 return; | |
| 624 } | |
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625 |
| 826 | 626 break; |
| 627 default: | |
| 628 } | |
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629 |
| 826 | 630 if(_charset!=null) |
| 631 _request.setCharacterEncodingUnchecked(_charset); | |
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632 |
| 826 | 633 // Either handle now or wait for first content |
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634 if ((_parser.getContentLength()<=0 && !_parser.isChunking())||_expect100Continue) |
| 826 | 635 handleRequest(); |
| 636 else | |
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637 _delayedHandling = true; |
| 826 | 638 } |
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639 |
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640 private void content(Buffer buffer) throws IOException |
| 826 | 641 { |
| 642 if (_delayedHandling) | |
| 643 { | |
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644 _delayedHandling = false; |
| 826 | 645 handleRequest(); |
| 646 } | |
| 647 } | |
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648 |
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649 private void messageComplete(long contentLength) throws IOException |
| 826 | 650 { |
| 651 if (_delayedHandling) | |
| 652 { | |
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653 _delayedHandling = false; |
| 826 | 654 handleRequest(); |
| 655 } | |
| 656 } | |
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657 |
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658 private void earlyEOF() |
| 826 | 659 { |
| 660 _earlyEOF = true; | |
| 661 } | |
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662 |
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663 |
| 980 | 664 private class RequestHandler implements HttpParser.EventHandler |
| 826 | 665 { |
| 666 @Override | |
| 667 public void startRequest(Buffer method, Buffer uri, Buffer version) throws IOException | |
| 668 { | |
| 669 AbstractHttpConnection.this.startRequest(method, uri, version); | |
| 670 } | |
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671 |
| 826 | 672 @Override |
| 673 public void parsedHeader(Buffer name, Buffer value) throws IOException | |
| 674 { | |
| 675 AbstractHttpConnection.this.parsedHeader(name, value); | |
| 676 } | |
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|
677 |
| 826 | 678 @Override |
| 679 public void headerComplete() throws IOException | |
| 680 { | |
| 681 AbstractHttpConnection.this.headerComplete(); | |
| 682 } | |
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|
683 |
| 826 | 684 @Override |
| 685 public void content(Buffer ref) throws IOException | |
| 686 { | |
| 687 AbstractHttpConnection.this.content(ref); | |
| 688 } | |
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|
689 |
| 826 | 690 @Override |
| 691 public void messageComplete(long contentLength) throws IOException | |
| 692 { | |
| 693 AbstractHttpConnection.this.messageComplete(contentLength); | |
| 694 } | |
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|
695 |
| 826 | 696 @Override |
| 697 public void earlyEOF() | |
| 698 { | |
| 699 AbstractHttpConnection.this.earlyEOF(); | |
| 700 } | |
| 701 } | |
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702 |
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703 |
| 985 | 704 public final class Output extends ServletOutputStream |
| 826 | 705 { |
| 985 | 706 private boolean _closed; |
| 707 private ByteArrayBuffer _onebyte; | |
| 708 | |
| 709 // These are held here for reuse by Writer | |
| 710 String _characterEncoding; | |
| 711 Writer _converter; | |
| 712 char[] _chars; | |
| 713 ByteArrayOutputStream2 _bytes; | |
| 714 | |
| 715 public final void reopen() | |
| 716 { | |
| 717 _closed = false; | |
| 718 } | |
| 719 | |
| 720 @Override | |
| 721 public final void write(byte[] b, int off, int len) throws IOException | |
| 722 { | |
| 723 write(new ByteArrayBuffer(b,off,len)); | |
| 724 } | |
| 725 | |
| 726 @Override | |
| 727 public final void write(byte[] b) throws IOException | |
| 728 { | |
| 729 write(new ByteArrayBuffer(b)); | |
| 730 } | |
| 731 | |
| 732 @Override | |
| 733 public final void write(int b) throws IOException | |
| 826 | 734 { |
| 985 | 735 if (_onebyte==null) |
| 736 _onebyte = new ByteArrayBuffer(1); | |
| 737 else | |
| 738 _onebyte.clear(); | |
| 739 _onebyte.put((byte)b); | |
| 740 write(_onebyte); | |
| 826 | 741 } |
| 985 | 742 |
| 743 private void write(Buffer buffer) throws IOException | |
| 744 { | |
| 745 if (_closed) | |
| 746 throw new IOException("Closed"); | |
| 747 if (!_generator.isOpen()) | |
| 748 throw new EofException(); | |
| 749 | |
| 750 // Block until we can add _content. | |
| 751 while (_generator.isBufferFull()) | |
| 752 { | |
| 753 _generator.blockForOutput(getMaxIdleTime()); | |
| 754 if (_closed) | |
| 755 throw new IOException("Closed"); | |
| 756 if (!_generator.isOpen()) | |
| 757 throw new EofException(); | |
| 758 } | |
| 759 | |
| 760 // Add the _content | |
| 761 _generator.addContent(buffer, HttpGenerator.MORE); | |
| 762 | |
| 763 // Have to flush and complete headers? | |
| 764 | |
| 765 if (_generator.isAllContentWritten()) | |
| 766 { | |
| 767 flush(); | |
| 768 close(); | |
| 769 } | |
| 770 else if (_generator.isBufferFull()) | |
| 771 commitResponse(HttpGenerator.MORE); | |
| 772 | |
| 773 // Block until our buffer is free | |
| 774 while (buffer.length() > 0 && _generator.isOpen()) | |
| 775 { | |
| 776 _generator.blockForOutput(getMaxIdleTime()); | |
| 777 } | |
| 778 } | |
| 779 | |
| 780 | |
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781 |
| 826 | 782 /* ------------------------------------------------------------ */ |
| 783 /* | |
| 784 * @see java.io.OutputStream#close() | |
| 785 */ | |
| 786 @Override | |
| 787 public void close() throws IOException | |
| 788 { | |
| 985 | 789 if (_closed) |
| 826 | 790 return; |
|
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791 |
| 985 | 792 if (!_generator.isCommitted()) |
| 982 | 793 commitResponse(HttpGenerator.LAST); |
| 826 | 794 else |
| 795 flushResponse(); | |
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796 |
| 985 | 797 _closed = true; |
| 826 | 798 } |
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799 |
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800 |
| 826 | 801 /* ------------------------------------------------------------ */ |
| 802 /* | |
| 803 * @see java.io.OutputStream#flush() | |
| 804 */ | |
| 805 @Override | |
| 806 public void flush() throws IOException | |
| 807 { | |
| 985 | 808 if (!_generator.isCommitted()) |
| 982 | 809 commitResponse(HttpGenerator.MORE); |
| 985 | 810 _generator.flush(getMaxIdleTime()); |
| 826 | 811 } |
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812 |
| 826 | 813 /* ------------------------------------------------------------ */ |
| 814 /* | |
| 815 * @see javax.servlet.ServletOutputStream#print(java.lang.String) | |
| 816 */ | |
| 817 @Override | |
| 818 public void print(String s) throws IOException | |
| 819 { | |
| 985 | 820 if (_closed) |
| 826 | 821 throw new IOException("Closed"); |
| 985 | 822 PrintWriter writer = getPrintWriter(null); |
| 826 | 823 writer.print(s); |
| 824 } | |
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825 |
| 826 | 826 public void sendContent(Object content) throws IOException |
| 827 { | |
| 828 Resource resource=null; | |
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829 |
| 985 | 830 if (_closed) |
| 826 | 831 throw new IOException("Closed"); |
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832 |
| 985 | 833 if (_generator.isWritten()) |
| 826 | 834 throw new IllegalStateException("!empty"); |
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835 |
| 826 | 836 if (content instanceof Resource) |
| 837 { | |
| 838 resource=(Resource)content; | |
| 839 _responseFields.putDateField(HttpHeaders.LAST_MODIFIED_BUFFER, resource.lastModified()); | |
| 840 content=resource.getInputStream(); | |
| 841 } | |
| 842 | |
| 843 // Process content. | |
| 844 if (content instanceof Buffer) | |
| 845 { | |
| 985 | 846 _generator.addContent((Buffer) content, HttpGenerator.LAST); |
| 982 | 847 commitResponse(HttpGenerator.LAST); |
| 826 | 848 } |
| 849 else if (content instanceof InputStream) | |
| 850 { | |
| 851 InputStream in = (InputStream)content; | |
| 852 | |
| 853 try | |
| 854 { | |
| 985 | 855 int max = _generator.prepareUncheckedAddContent(); |
| 856 Buffer buffer = _generator.getUncheckedBuffer(); | |
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857 |
| 826 | 858 int len=buffer.readFrom(in,max); |
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859 |
| 826 | 860 while (len>=0) |
| 861 { | |
| 985 | 862 _generator.completeUncheckedAddContent(); |
| 826 | 863 _out.flush(); |
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parents:
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864 |
| 985 | 865 max = _generator.prepareUncheckedAddContent(); |
| 866 buffer = _generator.getUncheckedBuffer(); | |
| 826 | 867 len=buffer.readFrom(in,max); |
| 868 } | |
| 985 | 869 _generator.completeUncheckedAddContent(); |
| 826 | 870 _out.flush(); |
| 871 } | |
| 872 finally | |
| 873 { | |
| 874 if (resource!=null) | |
| 875 resource.release(); | |
| 876 else | |
| 877 in.close(); | |
| 878 } | |
| 879 } | |
| 880 else | |
| 881 throw new IllegalArgumentException("unknown content type?"); | |
| 981 | 882 } |
| 883 } | |
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884 |
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885 |
| 981 | 886 private final class HttpInput extends ServletInputStream |
| 887 { | |
| 888 /* ------------------------------------------------------------ */ | |
| 889 /* | |
| 890 * @see java.io.InputStream#read() | |
| 891 */ | |
| 892 @Override | |
| 893 public int read() throws IOException | |
| 894 { | |
| 895 byte[] bytes = new byte[1]; | |
| 896 int read = read(bytes, 0, 1); | |
| 897 return read < 0 ? -1 : 0xff & bytes[0]; | |
| 898 } | |
| 899 | |
| 900 /* ------------------------------------------------------------ */ | |
| 901 /* | |
| 902 * @see java.io.InputStream#read(byte[], int, int) | |
| 903 */ | |
| 904 @Override | |
| 905 public int read(byte[] b, int off, int len) throws IOException | |
| 906 { | |
| 907 int l = -1; | |
| 908 Buffer content = _parser.blockForContent(getMaxIdleTime()); | |
| 909 if (content!=null) | |
| 910 l = content.get(b, off, len); | |
| 911 else if (_earlyEOF) | |
| 912 throw new EofException("early EOF"); | |
| 913 return l; | |
| 914 } | |
| 915 | |
| 916 @Override | |
| 917 public int available() throws IOException | |
| 918 { | |
| 919 return _parser.available(); | |
| 826 | 920 } |
| 921 } | |
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parents:
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922 |
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|
923 } |