Mercurial Hosting > luan
annotate src/org/eclipse/jetty/server/AbstractHttpConnection.java @ 1007:945568ee77ac
remove HttpBuffersImpl
| author | Franklin Schmidt <fschmidt@gmail.com> |
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| date | Sun, 23 Oct 2016 17:40:20 -0600 |
| parents | 0e96ce3db20a |
| children | 2712133d5bce |
| 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.HttpException; |
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33 import org.eclipse.jetty.http.HttpFields; |
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34 import org.eclipse.jetty.http.HttpGenerator; |
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35 import org.eclipse.jetty.http.HttpHeaderValues; |
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36 import org.eclipse.jetty.http.HttpHeaders; |
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37 import org.eclipse.jetty.http.HttpMethods; |
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38 import org.eclipse.jetty.http.HttpParser; |
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39 import org.eclipse.jetty.http.HttpStatus; |
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40 import org.eclipse.jetty.http.HttpURI; |
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41 import org.eclipse.jetty.http.HttpVersions; |
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42 import org.eclipse.jetty.http.MimeTypes; |
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43 import org.eclipse.jetty.io.AbstractConnection; |
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44 import org.eclipse.jetty.io.Buffer; |
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45 import org.eclipse.jetty.io.BufferCache.CachedBuffer; |
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46 import org.eclipse.jetty.io.Buffers; |
| 985 | 47 import org.eclipse.jetty.io.ByteArrayBuffer; |
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48 import org.eclipse.jetty.io.EndPoint; |
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49 import org.eclipse.jetty.io.EofException; |
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50 import org.eclipse.jetty.io.RuntimeIOException; |
| 985 | 51 import org.eclipse.jetty.util.ByteArrayOutputStream2; |
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52 import org.eclipse.jetty.util.QuotedStringTokenizer; |
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53 import org.eclipse.jetty.util.StringUtil; |
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54 import org.eclipse.jetty.util.URIUtil; |
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55 import org.slf4j.Logger; |
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56 import org.slf4j.LoggerFactory; |
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57 import org.eclipse.jetty.util.resource.Resource; |
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58 |
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59 /** |
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60 * <p>A HttpConnection represents the connection of a HTTP client to the server |
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61 * and is created by an instance of a {@link Connector}. It's prime function is |
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62 * to associate {@link Request} and {@link Response} instances with a {@link EndPoint}. |
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63 * </p> |
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64 * <p> |
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65 * A connection is also the prime mechanism used by jetty to recycle objects without |
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66 * pooling. The {@link Request}, {@link Response}, {@link HttpParser}, {@link HttpGenerator} |
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67 * and {@link HttpFields} instances are all recycled for the duraction of |
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68 * a connection. Where appropriate, allocated buffers are also kept associated |
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69 * with the connection via the parser and/or generator. |
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70 * </p> |
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71 * <p> |
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72 * The connection state is held by 3 separate state machines: The request state, the |
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73 * response state and the continuation state. All three state machines must be driven |
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74 * to completion for every request, and all three can complete in any order. |
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75 * </p> |
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76 * <p> |
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77 * The HttpConnection support protocol upgrade. If on completion of a request, the |
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78 * response code is 101 (switch protocols), then the org.eclipse.jetty.io.Connection |
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79 * request attribute is checked to see if there is a new Connection instance. If so, |
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80 * the new connection is returned from {@link #handle()} and is used for future |
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81 * handling of the underlying connection. Note that for switching protocols that |
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82 * don't use 101 responses (eg CONNECT), the response should be sent and then the |
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83 * status code changed to 101 before returning from the handler. Implementors |
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84 * of new Connection types should be careful to extract any buffered data from |
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85 * (HttpParser)http.getParser()).getHeaderBuffer() and |
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86 * (HttpParser)http.getParser()).getBodyBuffer() to initialise their new connection. |
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87 * </p> |
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88 * |
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89 */ |
| 982 | 90 public abstract class AbstractHttpConnection extends AbstractConnection |
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91 { |
| 826 | 92 private static final Logger LOG = LoggerFactory.getLogger(AbstractHttpConnection.class); |
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93 |
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94 private final Connector _connector; |
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95 private final Server _server; |
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96 protected final HttpURI _uri = StringUtil.__UTF8.equals(URIUtil.__CHARSET)?new HttpURI():new EncodedHttpURI(URIUtil.__CHARSET); |
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97 |
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98 protected final HttpParser _parser; |
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99 protected final HttpFields _requestFields = new HttpFields(); |
| 1001 | 100 public final Request _request; |
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101 private volatile ServletInputStream _in; |
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102 |
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103 protected final HttpGenerator _generator; |
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104 final HttpFields _responseFields = new HttpFields(); |
| 826 | 105 protected final Response _response; |
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106 private volatile Output _out; |
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107 private volatile HttpWriter _writer; |
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108 private volatile PrintWriter _printWriter; |
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109 |
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110 private int _version = -2; // UNKNOWN |
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111 |
| 826 | 112 private String _charset; |
| 113 private boolean _expect = false; | |
| 114 private boolean _expect100Continue = false; | |
| 115 private boolean _head = false; | |
| 116 private boolean _host = false; | |
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117 private boolean _delayedHandling = false; |
| 826 | 118 private boolean _earlyEOF = false; |
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119 |
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120 protected AbstractHttpConnection(Connector connector, EndPoint endpoint) |
| 826 | 121 { |
| 122 super(endpoint); | |
| 123 _connector = connector; | |
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124 _parser = new HttpParser(_connector.getRequestBuffers(), endpoint, new RequestHandler()); |
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125 _request = new Request(this); |
| 826 | 126 _response = new Response(this); |
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127 _generator = new HttpGenerator(_connector.getResponseBuffers(), endpoint); |
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128 _server = connector.server; |
| 826 | 129 } |
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130 |
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131 public final Connector getConnector() |
| 826 | 132 { |
| 133 return _connector; | |
| 134 } | |
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135 |
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136 public final Request getRequest() |
| 826 | 137 { |
| 138 return _request; | |
| 139 } | |
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140 |
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141 public final Response getResponse() |
| 826 | 142 { |
| 143 return _response; | |
| 144 } | |
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145 |
| 826 | 146 /* ------------------------------------------------------------ */ |
| 147 /** | |
| 148 * Get the inputStream from the connection. | |
| 149 * <p> | |
| 150 * If the associated response has the Expect header set to 100 Continue, | |
| 151 * then accessing the input stream indicates that the handler/servlet | |
| 152 * is ready for the request body and thus a 100 Continue response is sent. | |
| 153 * | |
| 154 * @return The input stream for this connection. | |
| 155 * The stream will be created if it does not already exist. | |
| 156 * @throws IOException if the input stream cannot be retrieved | |
| 157 */ | |
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158 public final ServletInputStream getInputStream() throws IOException |
| 826 | 159 { |
| 160 // If the client is expecting 100 CONTINUE, then send it now. | |
| 161 if (_expect100Continue) | |
| 162 { | |
| 163 // is content missing? | |
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164 if (_parser.getHeaderBuffer()==null || _parser.getHeaderBuffer().length()<2) |
| 826 | 165 { |
| 166 if (_generator.isCommitted()) | |
| 167 throw new IllegalStateException("Committed before 100 Continues"); | |
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168 |
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169 _generator.send1xx(HttpStatus.CONTINUE_100); |
| 826 | 170 } |
| 171 _expect100Continue=false; | |
| 172 } | |
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173 |
| 826 | 174 if (_in == null) |
| 981 | 175 _in = new HttpInput(); |
| 826 | 176 return _in; |
| 177 } | |
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178 |
| 826 | 179 /* ------------------------------------------------------------ */ |
| 180 /** | |
| 181 * @return The output stream for this connection. The stream will be created if it does not already exist. | |
| 182 */ | |
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183 public final ServletOutputStream getOutputStream() |
| 826 | 184 { |
| 185 if (_out == null) | |
| 186 _out = new Output(); | |
| 187 return _out; | |
| 188 } | |
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189 |
| 826 | 190 /* ------------------------------------------------------------ */ |
| 191 /** | |
| 192 * @param encoding the PrintWriter encoding | |
| 193 * @return A {@link PrintWriter} wrapping the {@link #getOutputStream output stream}. The writer is created if it | |
| 194 * does not already exist. | |
| 195 */ | |
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196 public final PrintWriter getPrintWriter(String encoding) |
| 826 | 197 { |
| 198 getOutputStream(); | |
| 199 if (_writer==null) | |
| 200 { | |
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201 _writer = new HttpWriter(_out); |
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202 _printWriter = new PrintWriter(_writer) |
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203 { |
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204 public void close() |
| 826 | 205 { |
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206 synchronized (lock) |
| 826 | 207 { |
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208 try |
| 826 | 209 { |
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210 out.close(); |
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211 } |
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212 catch (IOException e) |
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213 { |
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214 setError(); |
| 826 | 215 } |
| 216 } | |
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217 } |
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218 }; |
| 826 | 219 } |
| 220 _writer.setCharacterEncoding(encoding); | |
| 221 return _printWriter; | |
| 222 } | |
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223 |
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224 protected void reset() |
| 826 | 225 { |
| 226 _parser.reset(); | |
| 227 _parser.returnBuffers(); // TODO maybe only on unhandle | |
| 228 _requestFields.clear(); | |
| 229 _request.recycle(); | |
| 230 _generator.reset(); | |
| 231 _generator.returnBuffers();// TODO maybe only on unhandle | |
| 232 _responseFields.clear(); | |
| 233 _response.recycle(); | |
| 234 _uri.clear(); | |
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235 _writer = null; |
| 826 | 236 _earlyEOF = false; |
| 237 } | |
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238 |
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239 private void handleRequest() throws IOException |
| 826 | 240 { |
| 241 boolean error = false; | |
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242 |
| 826 | 243 try |
| 244 { | |
| 245 // Loop here to handle async request redispatches. | |
| 246 // The loop is controlled by the call to async.unhandle in the | |
| 247 // finally block below. If call is from a non-blocking connector, | |
| 248 // then the unhandle will return false only if an async dispatch has | |
| 249 // already happened when unhandle is called. For a blocking connector, | |
| 250 // the wait for the asynchronous dispatch or timeout actually happens | |
| 251 // within the call to unhandle(). | |
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252 |
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253 _request.setHandled(false); |
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254 |
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255 String info=null; |
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256 try |
| 826 | 257 { |
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258 _uri.getPort(); |
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259 String path = null; |
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260 |
| 826 | 261 try |
| 262 { | |
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263 path = _uri.getDecodedPath(); |
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264 } |
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265 catch (Exception e) |
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266 { |
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267 LOG.warn("Failed UTF-8 decode for request path, trying ISO-8859-1"); |
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268 LOG.trace("",e); |
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269 path = _uri.getDecodedPath(StringUtil.__ISO_8859_1); |
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270 } |
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271 |
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272 info = URIUtil.canonicalPath(path); |
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273 if (info==null && !_request.getMethod().equals(HttpMethods.CONNECT)) |
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274 { |
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275 if (path==null && _uri.getScheme()!=null && _uri.getHost()!=null) |
| 826 | 276 { |
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277 info="/"; |
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278 _request.setRequestURI(""); |
| 826 | 279 } |
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280 else |
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281 throw new HttpException(400); |
| 826 | 282 } |
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283 _request.setPathInfo(info); |
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284 |
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285 if (_out!=null) |
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286 _out.reopen(); |
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287 |
| 1001 | 288 _connector.customize(this); |
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289 _server.handle(this); |
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290 } |
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291 catch (EofException e) |
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292 { |
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293 LOG.debug("",e); |
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294 error=true; |
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295 _request.setHandled(true); |
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296 if (!_response.isCommitted()) |
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297 _generator.sendError(500, null, null, true); |
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298 } |
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299 catch (RuntimeIOException 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 } |
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305 catch (HttpException e) |
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306 { |
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307 LOG.debug("",e); |
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308 error=true; |
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309 _request.setHandled(true); |
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310 _response.sendError(e.getStatus(), e.getReason()); |
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311 } |
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312 catch (Throwable e) |
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313 { |
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314 LOG.warn(String.valueOf(_uri),e); |
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315 error=true; |
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316 _request.setHandled(true); |
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317 _generator.sendError(info==null?400:500, null, null, true); |
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318 |
| 826 | 319 } |
| 320 } | |
| 321 finally | |
| 322 { | |
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323 if (_expect100Continue) |
| 826 | 324 { |
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325 LOG.debug("100 continues not sent"); |
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326 // We didn't send 100 continues, but the latest interpretation |
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327 // of the spec (see httpbis) is that the client will either |
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328 // send the body anyway, or close. So we no longer need to |
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329 // do anything special here other than make the connection not persistent |
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330 _expect100Continue = false; |
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331 if (!_response.isCommitted()) |
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332 _generator.setPersistent(false); |
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333 } |
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334 |
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335 if(_endp.isOpen()) |
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336 { |
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337 if (error) |
| 826 | 338 { |
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339 _endp.shutdownOutput(); |
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340 _generator.setPersistent(false); |
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341 if (!_generator.isComplete()) |
| 826 | 342 _response.complete(); |
| 343 } | |
| 344 else | |
| 345 { | |
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346 if (!_response.isCommitted() && !_request.isHandled()) |
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347 _response.sendError(HttpServletResponse.SC_NOT_FOUND); |
| 826 | 348 _response.complete(); |
| 349 } | |
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350 } |
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351 else |
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352 { |
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353 _response.complete(); |
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354 } |
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355 |
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356 _request.setHandled(true); |
| 826 | 357 } |
| 358 } | |
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359 |
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360 |
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361 public final void commitResponse(boolean last) throws IOException |
| 826 | 362 { |
| 363 if (!_generator.isCommitted()) | |
| 364 { | |
| 365 _generator.setResponse(_response.getStatus(), _response.getReason()); | |
| 366 try | |
| 367 { | |
| 368 // If the client was expecting 100 continues, but we sent something | |
| 369 // else, then we need to close the connection | |
| 370 if (_expect100Continue && _response.getStatus()!=100) | |
| 371 _generator.setPersistent(false); | |
| 372 _generator.completeHeader(_responseFields, last); | |
| 373 } | |
| 374 catch(RuntimeException e) | |
| 375 { | |
| 376 LOG.warn("header full: " + e); | |
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377 |
| 826 | 378 _response.reset(); |
| 379 _generator.reset(); | |
| 380 _generator.setResponse(HttpStatus.INTERNAL_SERVER_ERROR_500,null); | |
| 982 | 381 _generator.completeHeader(_responseFields,HttpGenerator.LAST); |
| 826 | 382 _generator.complete(); |
| 383 throw new HttpException(HttpStatus.INTERNAL_SERVER_ERROR_500); | |
| 384 } | |
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385 |
| 826 | 386 } |
| 387 if (last) | |
| 388 _generator.complete(); | |
| 389 } | |
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390 |
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391 public final void completeResponse() throws IOException |
| 826 | 392 { |
| 393 if (!_generator.isCommitted()) | |
| 394 { | |
| 395 _generator.setResponse(_response.getStatus(), _response.getReason()); | |
| 396 try | |
| 397 { | |
| 982 | 398 _generator.completeHeader(_responseFields, HttpGenerator.LAST); |
| 826 | 399 } |
| 400 catch(RuntimeException e) | |
| 401 { | |
| 402 LOG.warn("header full: "+e); | |
| 403 LOG.debug("",e); | |
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404 |
| 826 | 405 _response.reset(); |
| 406 _generator.reset(); | |
| 407 _generator.setResponse(HttpStatus.INTERNAL_SERVER_ERROR_500,null); | |
| 982 | 408 _generator.completeHeader(_responseFields,HttpGenerator.LAST); |
| 826 | 409 _generator.complete(); |
| 410 throw new HttpException(HttpStatus.INTERNAL_SERVER_ERROR_500); | |
| 411 } | |
| 412 } | |
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413 |
| 826 | 414 _generator.complete(); |
| 415 } | |
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416 |
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417 public final void flushResponse() throws IOException |
| 826 | 418 { |
| 419 try | |
| 420 { | |
| 982 | 421 commitResponse(HttpGenerator.MORE); |
| 826 | 422 _generator.flushBuffer(); |
| 423 } | |
| 424 catch(IOException e) | |
| 425 { | |
| 426 throw (e instanceof EofException) ? e:new EofException(e); | |
| 427 } | |
| 428 } | |
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429 |
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430 public final int getMaxIdleTime() |
| 826 | 431 { |
| 996 | 432 if (_connector.server.isLowOnThreads() && _endp.getMaxIdleTime()==_connector.getMaxIdleTime()) |
| 913 | 433 return 0; |
| 826 | 434 if (_endp.getMaxIdleTime()>0) |
| 435 return _endp.getMaxIdleTime(); | |
| 436 return _connector.getMaxIdleTime(); | |
| 437 } | |
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438 |
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439 @Override |
| 826 | 440 public String toString() |
| 441 { | |
| 1001 | 442 return String.format("%s,g=%s,p=%s", |
| 826 | 443 super.toString(), |
| 444 _generator, | |
| 1001 | 445 _parser); |
| 826 | 446 } |
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447 |
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448 private void startRequest(Buffer method, Buffer uri, Buffer version) throws IOException |
| 826 | 449 { |
| 450 uri=uri.asImmutableBuffer(); | |
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451 |
| 826 | 452 _host = false; |
| 453 _expect = false; | |
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454 _expect100Continue = false; |
| 826 | 455 _delayedHandling=false; |
| 456 _charset=null; | |
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457 |
| 826 | 458 if(_request.getTimeStamp()==0) |
| 459 _request.setTimeStamp(System.currentTimeMillis()); | |
| 460 _request.setMethod(method.toString()); | |
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461 |
| 826 | 462 try |
| 463 { | |
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464 _head = false; |
| 826 | 465 switch (HttpMethods.CACHE.getOrdinal(method)) |
| 466 { | |
| 467 case HttpMethods.CONNECT_ORDINAL: | |
| 468 _uri.parseConnect(uri.array(), uri.getIndex(), uri.length()); | |
| 469 break; | |
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470 |
| 826 | 471 case HttpMethods.HEAD_ORDINAL: |
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472 _head = true; |
| 826 | 473 _uri.parse(uri.array(), uri.getIndex(), uri.length()); |
| 474 break; | |
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475 |
| 826 | 476 default: |
| 477 _uri.parse(uri.array(), uri.getIndex(), uri.length()); | |
| 478 } | |
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479 |
| 826 | 480 _request.setUri(_uri); |
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481 |
| 826 | 482 if (version==null) |
| 483 { | |
| 484 _request.setProtocol(HttpVersions.HTTP_0_9); | |
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485 _version = HttpVersions.HTTP_0_9_ORDINAL; |
| 826 | 486 } |
| 487 else | |
| 488 { | |
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489 version = HttpVersions.CACHE.get(version); |
| 826 | 490 if (version==null) |
| 491 throw new HttpException(HttpStatus.BAD_REQUEST_400,null); | |
| 492 _version = HttpVersions.CACHE.getOrdinal(version); | |
| 493 if (_version <= 0) _version = HttpVersions.HTTP_1_0_ORDINAL; | |
| 494 _request.setProtocol(version.toString()); | |
| 495 } | |
| 496 } | |
| 497 catch (Exception e) | |
| 498 { | |
| 499 LOG.debug("",e); | |
| 500 if (e instanceof HttpException) | |
| 501 throw (HttpException)e; | |
| 502 throw new HttpException(HttpStatus.BAD_REQUEST_400,null,e); | |
| 503 } | |
| 504 } | |
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505 |
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506 private void parsedHeader(Buffer name, Buffer value) throws IOException |
| 826 | 507 { |
| 508 int ho = HttpHeaders.CACHE.getOrdinal(name); | |
| 509 switch (ho) | |
| 510 { | |
| 511 case HttpHeaders.HOST_ORDINAL: | |
| 512 // TODO check if host matched a host in the URI. | |
| 513 _host = true; | |
| 514 break; | |
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515 |
| 826 | 516 case HttpHeaders.EXPECT_ORDINAL: |
| 517 if (_version>=HttpVersions.HTTP_1_1_ORDINAL) | |
| 518 { | |
| 519 value = HttpHeaderValues.CACHE.lookup(value); | |
| 520 switch(HttpHeaderValues.CACHE.getOrdinal(value)) | |
| 521 { | |
| 522 case HttpHeaderValues.CONTINUE_ORDINAL: | |
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523 _expect100Continue = true; |
| 826 | 524 break; |
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525 |
| 826 | 526 default: |
| 527 String[] values = value.toString().split(","); | |
| 528 for (int i=0;values!=null && i<values.length;i++) | |
| 529 { | |
| 530 CachedBuffer cb=HttpHeaderValues.CACHE.get(values[i].trim()); | |
| 531 if (cb==null) | |
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532 _expect = true; |
| 826 | 533 else |
| 534 { | |
| 535 switch(cb.getOrdinal()) | |
| 536 { | |
| 537 case HttpHeaderValues.CONTINUE_ORDINAL: | |
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538 _expect100Continue = true; |
| 826 | 539 break; |
| 540 default: | |
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541 _expect = true; |
| 826 | 542 } |
| 543 } | |
| 544 } | |
| 545 } | |
| 546 } | |
| 547 break; | |
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548 |
| 826 | 549 case HttpHeaders.ACCEPT_ENCODING_ORDINAL: |
| 550 case HttpHeaders.USER_AGENT_ORDINAL: | |
| 551 value = HttpHeaderValues.CACHE.lookup(value); | |
| 552 break; | |
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553 |
| 826 | 554 case HttpHeaders.CONTENT_TYPE_ORDINAL: |
| 555 value = MimeTypes.CACHE.lookup(value); | |
| 556 _charset=MimeTypes.getCharsetFromContentType(value); | |
| 557 break; | |
| 558 } | |
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559 |
| 826 | 560 _requestFields.add(name, value); |
| 561 } | |
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562 |
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563 private void headerComplete() throws IOException |
| 826 | 564 { |
| 565 // Handle idle race | |
| 566 if (_endp.isOutputShutdown()) | |
| 567 { | |
| 568 _endp.close(); | |
| 569 return; | |
| 570 } | |
| 571 | |
| 572 _generator.setVersion(_version); | |
| 573 switch (_version) | |
| 574 { | |
| 575 case HttpVersions.HTTP_0_9_ORDINAL: | |
| 576 break; | |
| 577 case HttpVersions.HTTP_1_0_ORDINAL: | |
| 578 _generator.setHead(_head); | |
| 579 if (_parser.isPersistent()) | |
| 580 { | |
| 581 _responseFields.add(HttpHeaders.CONNECTION_BUFFER, HttpHeaderValues.KEEP_ALIVE_BUFFER); | |
| 582 _generator.setPersistent(true); | |
| 583 } | |
| 584 else if (HttpMethods.CONNECT.equals(_request.getMethod())) | |
| 585 { | |
| 586 _generator.setPersistent(true); | |
| 587 _parser.setPersistent(true); | |
| 588 } | |
| 589 break; | |
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590 |
| 826 | 591 case HttpVersions.HTTP_1_1_ORDINAL: |
| 592 _generator.setHead(_head); | |
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593 |
| 826 | 594 if (!_parser.isPersistent()) |
| 595 { | |
| 596 _responseFields.add(HttpHeaders.CONNECTION_BUFFER,HttpHeaderValues.CLOSE_BUFFER); | |
| 597 _generator.setPersistent(false); | |
| 598 } | |
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599 |
| 826 | 600 if (!_host) |
| 601 { | |
| 602 LOG.debug("!host {}",this); | |
| 603 _generator.setResponse(HttpStatus.BAD_REQUEST_400, null); | |
| 604 _responseFields.put(HttpHeaders.CONNECTION_BUFFER, HttpHeaderValues.CLOSE_BUFFER); | |
| 605 _generator.completeHeader(_responseFields, true); | |
| 606 _generator.complete(); | |
| 607 return; | |
| 608 } | |
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609 |
| 826 | 610 if (_expect) |
| 611 { | |
| 612 LOG.debug("!expectation {}",this); | |
| 613 _generator.setResponse(HttpStatus.EXPECTATION_FAILED_417, null); | |
| 614 _responseFields.put(HttpHeaders.CONNECTION_BUFFER, HttpHeaderValues.CLOSE_BUFFER); | |
| 615 _generator.completeHeader(_responseFields, true); | |
| 616 _generator.complete(); | |
| 617 return; | |
| 618 } | |
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619 |
| 826 | 620 break; |
| 621 default: | |
| 622 } | |
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623 |
| 826 | 624 if(_charset!=null) |
| 625 _request.setCharacterEncodingUnchecked(_charset); | |
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626 |
| 826 | 627 // Either handle now or wait for first content |
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628 if ((_parser.getContentLength()<=0 && !_parser.isChunking())||_expect100Continue) |
| 826 | 629 handleRequest(); |
| 630 else | |
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631 _delayedHandling = true; |
| 826 | 632 } |
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633 |
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634 private void content(Buffer buffer) throws IOException |
| 826 | 635 { |
| 636 if (_delayedHandling) | |
| 637 { | |
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638 _delayedHandling = false; |
| 826 | 639 handleRequest(); |
| 640 } | |
| 641 } | |
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642 |
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643 private void messageComplete(long contentLength) throws IOException |
| 826 | 644 { |
| 645 if (_delayedHandling) | |
| 646 { | |
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647 _delayedHandling = false; |
| 826 | 648 handleRequest(); |
| 649 } | |
| 650 } | |
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651 |
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652 private void earlyEOF() |
| 826 | 653 { |
| 654 _earlyEOF = true; | |
| 655 } | |
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656 |
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657 |
| 980 | 658 private class RequestHandler implements HttpParser.EventHandler |
| 826 | 659 { |
| 660 @Override | |
| 661 public void startRequest(Buffer method, Buffer uri, Buffer version) throws IOException | |
| 662 { | |
| 663 AbstractHttpConnection.this.startRequest(method, uri, version); | |
| 664 } | |
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665 |
| 826 | 666 @Override |
| 667 public void parsedHeader(Buffer name, Buffer value) throws IOException | |
| 668 { | |
| 669 AbstractHttpConnection.this.parsedHeader(name, value); | |
| 670 } | |
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671 |
| 826 | 672 @Override |
| 673 public void headerComplete() throws IOException | |
| 674 { | |
| 675 AbstractHttpConnection.this.headerComplete(); | |
| 676 } | |
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677 |
| 826 | 678 @Override |
| 679 public void content(Buffer ref) throws IOException | |
| 680 { | |
| 681 AbstractHttpConnection.this.content(ref); | |
| 682 } | |
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683 |
| 826 | 684 @Override |
| 685 public void messageComplete(long contentLength) throws IOException | |
| 686 { | |
| 687 AbstractHttpConnection.this.messageComplete(contentLength); | |
| 688 } | |
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689 |
| 826 | 690 @Override |
| 691 public void earlyEOF() | |
| 692 { | |
| 693 AbstractHttpConnection.this.earlyEOF(); | |
| 694 } | |
| 695 } | |
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696 |
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697 |
| 985 | 698 public final class Output extends ServletOutputStream |
| 826 | 699 { |
| 985 | 700 private boolean _closed; |
| 701 private ByteArrayBuffer _onebyte; | |
| 702 | |
| 703 // These are held here for reuse by Writer | |
| 704 String _characterEncoding; | |
| 705 Writer _converter; | |
| 706 char[] _chars; | |
| 707 ByteArrayOutputStream2 _bytes; | |
| 708 | |
| 709 public final void reopen() | |
| 710 { | |
| 711 _closed = false; | |
| 712 } | |
| 713 | |
| 714 @Override | |
| 715 public final void write(byte[] b, int off, int len) throws IOException | |
| 716 { | |
| 717 write(new ByteArrayBuffer(b,off,len)); | |
| 718 } | |
| 719 | |
| 720 @Override | |
| 721 public final void write(byte[] b) throws IOException | |
| 722 { | |
| 723 write(new ByteArrayBuffer(b)); | |
| 724 } | |
| 725 | |
| 726 @Override | |
| 727 public final void write(int b) throws IOException | |
| 826 | 728 { |
| 985 | 729 if (_onebyte==null) |
| 730 _onebyte = new ByteArrayBuffer(1); | |
| 731 else | |
| 732 _onebyte.clear(); | |
| 733 _onebyte.put((byte)b); | |
| 734 write(_onebyte); | |
| 826 | 735 } |
| 985 | 736 |
| 737 private void write(Buffer buffer) throws IOException | |
| 738 { | |
| 739 if (_closed) | |
| 740 throw new IOException("Closed"); | |
| 741 if (!_generator.isOpen()) | |
| 742 throw new EofException(); | |
| 743 | |
| 744 // Block until we can add _content. | |
| 745 while (_generator.isBufferFull()) | |
| 746 { | |
| 747 _generator.blockForOutput(getMaxIdleTime()); | |
| 748 if (_closed) | |
| 749 throw new IOException("Closed"); | |
| 750 if (!_generator.isOpen()) | |
| 751 throw new EofException(); | |
| 752 } | |
| 753 | |
| 754 // Add the _content | |
| 755 _generator.addContent(buffer, HttpGenerator.MORE); | |
| 756 | |
| 757 // Have to flush and complete headers? | |
| 758 | |
| 759 if (_generator.isAllContentWritten()) | |
| 760 { | |
| 761 flush(); | |
| 762 close(); | |
| 763 } | |
| 764 else if (_generator.isBufferFull()) | |
| 765 commitResponse(HttpGenerator.MORE); | |
| 766 | |
| 767 // Block until our buffer is free | |
| 768 while (buffer.length() > 0 && _generator.isOpen()) | |
| 769 { | |
| 770 _generator.blockForOutput(getMaxIdleTime()); | |
| 771 } | |
| 772 } | |
| 773 | |
| 774 | |
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775 |
| 826 | 776 /* ------------------------------------------------------------ */ |
| 777 /* | |
| 778 * @see java.io.OutputStream#close() | |
| 779 */ | |
| 780 @Override | |
| 781 public void close() throws IOException | |
| 782 { | |
| 985 | 783 if (_closed) |
| 826 | 784 return; |
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parents:
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785 |
| 985 | 786 if (!_generator.isCommitted()) |
| 982 | 787 commitResponse(HttpGenerator.LAST); |
| 826 | 788 else |
| 789 flushResponse(); | |
|
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790 |
| 985 | 791 _closed = true; |
| 826 | 792 } |
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793 |
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794 |
| 826 | 795 /* ------------------------------------------------------------ */ |
| 796 /* | |
| 797 * @see java.io.OutputStream#flush() | |
| 798 */ | |
| 799 @Override | |
| 800 public void flush() throws IOException | |
| 801 { | |
| 985 | 802 if (!_generator.isCommitted()) |
| 982 | 803 commitResponse(HttpGenerator.MORE); |
| 985 | 804 _generator.flush(getMaxIdleTime()); |
| 826 | 805 } |
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806 |
| 826 | 807 /* ------------------------------------------------------------ */ |
| 808 /* | |
| 809 * @see javax.servlet.ServletOutputStream#print(java.lang.String) | |
| 810 */ | |
| 811 @Override | |
| 812 public void print(String s) throws IOException | |
| 813 { | |
| 985 | 814 if (_closed) |
| 826 | 815 throw new IOException("Closed"); |
| 985 | 816 PrintWriter writer = getPrintWriter(null); |
| 826 | 817 writer.print(s); |
| 818 } | |
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819 |
| 826 | 820 public void sendContent(Object content) throws IOException |
| 821 { | |
| 822 Resource resource=null; | |
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823 |
| 985 | 824 if (_closed) |
| 826 | 825 throw new IOException("Closed"); |
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826 |
| 985 | 827 if (_generator.isWritten()) |
| 826 | 828 throw new IllegalStateException("!empty"); |
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829 |
| 826 | 830 if (content instanceof Resource) |
| 831 { | |
| 832 resource=(Resource)content; | |
| 833 _responseFields.putDateField(HttpHeaders.LAST_MODIFIED_BUFFER, resource.lastModified()); | |
| 834 content=resource.getInputStream(); | |
| 835 } | |
| 836 | |
| 837 // Process content. | |
| 838 if (content instanceof Buffer) | |
| 839 { | |
| 985 | 840 _generator.addContent((Buffer) content, HttpGenerator.LAST); |
| 982 | 841 commitResponse(HttpGenerator.LAST); |
| 826 | 842 } |
| 843 else if (content instanceof InputStream) | |
| 844 { | |
| 845 InputStream in = (InputStream)content; | |
| 846 | |
| 847 try | |
| 848 { | |
| 985 | 849 int max = _generator.prepareUncheckedAddContent(); |
| 850 Buffer buffer = _generator.getUncheckedBuffer(); | |
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851 |
| 826 | 852 int len=buffer.readFrom(in,max); |
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853 |
| 826 | 854 while (len>=0) |
| 855 { | |
| 985 | 856 _generator.completeUncheckedAddContent(); |
| 826 | 857 _out.flush(); |
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parents:
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|
858 |
| 985 | 859 max = _generator.prepareUncheckedAddContent(); |
| 860 buffer = _generator.getUncheckedBuffer(); | |
| 826 | 861 len=buffer.readFrom(in,max); |
| 862 } | |
| 985 | 863 _generator.completeUncheckedAddContent(); |
| 826 | 864 _out.flush(); |
| 865 } | |
| 866 finally | |
| 867 { | |
| 868 if (resource!=null) | |
| 869 resource.release(); | |
| 870 else | |
| 871 in.close(); | |
| 872 } | |
| 873 } | |
| 874 else | |
| 875 throw new IllegalArgumentException("unknown content type?"); | |
| 981 | 876 } |
| 877 } | |
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878 |
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879 |
| 981 | 880 private final class HttpInput extends ServletInputStream |
| 881 { | |
| 882 /* ------------------------------------------------------------ */ | |
| 883 /* | |
| 884 * @see java.io.InputStream#read() | |
| 885 */ | |
| 886 @Override | |
| 887 public int read() throws IOException | |
| 888 { | |
| 889 byte[] bytes = new byte[1]; | |
| 890 int read = read(bytes, 0, 1); | |
| 891 return read < 0 ? -1 : 0xff & bytes[0]; | |
| 892 } | |
| 893 | |
| 894 /* ------------------------------------------------------------ */ | |
| 895 /* | |
| 896 * @see java.io.InputStream#read(byte[], int, int) | |
| 897 */ | |
| 898 @Override | |
| 899 public int read(byte[] b, int off, int len) throws IOException | |
| 900 { | |
| 901 int l = -1; | |
| 902 Buffer content = _parser.blockForContent(getMaxIdleTime()); | |
| 903 if (content!=null) | |
| 904 l = content.get(b, off, len); | |
| 905 else if (_earlyEOF) | |
| 906 throw new EofException("early EOF"); | |
| 907 return l; | |
| 908 } | |
| 909 | |
| 910 @Override | |
| 911 public int available() throws IOException | |
| 912 { | |
| 913 return _parser.available(); | |
| 826 | 914 } |
| 915 } | |
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916 |
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|
917 } |