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| 1 | +/* | |
| 2 | + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.net.httpserver; | |
| 27 | + | |
| 28 | +import java.net.*; | |
| 29 | +import java.io.*; | |
| 30 | +import java.nio.*; | |
| 31 | +import java.security.*; | |
| 32 | +import java.nio.channels.*; | |
| 33 | +import java.util.*; | |
| 34 | +import java.util.concurrent.*; | |
| 35 | +import java.util.logging.Logger; | |
| 36 | +import java.util.logging.Level; | |
| 37 | +import javax.net.ssl.*; | |
| 38 | +import com.sun.net.httpserver.*; | |
| 39 | +import com.sun.net.httpserver.spi.*; | |
| 40 | +import sun.net.httpserver.HttpConnection.State; | |
| 41 | + | |
| 42 | +/** | |
| 43 | + * Provides implementation for both HTTP and HTTPS | |
| 44 | + */ | |
| 45 | +class ServerImpl implements TimeSource { | |
| 46 | + | |
| 47 | + private String protocol; | |
| 48 | + private boolean https; | |
| 49 | + private Executor executor; | |
| 50 | + private HttpsConfigurator httpsConfig; | |
| 51 | + private SSLContext sslContext; | |
| 52 | + private ContextList contexts; | |
| 53 | + private InetSocketAddress address; | |
| 54 | + private ServerSocketChannel schan; | |
| 55 | + private Selector selector; | |
| 56 | + private SelectionKey listenerKey; | |
| 57 | + private Set<HttpConnection> idleConnections; | |
| 58 | + private Set<HttpConnection> allConnections; | |
| 59 | + /* following two are used to keep track of the times | |
| 60 | + * when a connection/request is first received | |
| 61 | + * and when we start to send the response | |
| 62 | + */ | |
| 63 | + private Set<HttpConnection> reqConnections; | |
| 64 | + private Set<HttpConnection> rspConnections; | |
| 65 | + private List<Event> events; | |
| 66 | + private Object lolock = new Object(); | |
| 67 | + private volatile boolean finished = false; | |
| 68 | + private volatile boolean terminating = false; | |
| 69 | + private boolean bound = false; | |
| 70 | + private boolean started = false; | |
| 71 | + private volatile long time; /* current time */ | |
| 72 | + private volatile long subticks = 0; | |
| 73 | + private volatile long ticks; /* number of clock ticks since server started */ | |
| 74 | + private HttpServer wrapper; | |
| 75 | + | |
| 76 | + final static int CLOCK_TICK = ServerConfig.getClockTick(); | |
| 77 | + final static long IDLE_INTERVAL = ServerConfig.getIdleInterval(); | |
| 78 | + final static int MAX_IDLE_CONNECTIONS = ServerConfig.getMaxIdleConnections(); | |
| 79 | + final static long TIMER_MILLIS = ServerConfig.getTimerMillis (); | |
| 80 | + final static long MAX_REQ_TIME=getTimeMillis(ServerConfig.getMaxReqTime()); | |
| 81 | + final static long MAX_RSP_TIME=getTimeMillis(ServerConfig.getMaxRspTime()); | |
| 82 | + final static boolean timer1Enabled = MAX_REQ_TIME != -1 || MAX_RSP_TIME != -1; | |
| 83 | + | |
| 84 | + private Timer timer, timer1; | |
| 85 | + private Logger logger; | |
| 86 | + | |
| 87 | + ServerImpl ( | |
| 88 | + HttpServer wrapper, String protocol, InetSocketAddress addr, int backlog | |
| 89 | + ) throws IOException { | |
| 90 | + | |
| 91 | + this.protocol = protocol; | |
| 92 | + this.wrapper = wrapper; | |
| 93 | + this.logger = Logger.getLogger ("com.sun.net.httpserver"); | |
| 94 | + ServerConfig.checkLegacyProperties (logger); | |
| 95 | + https = protocol.equalsIgnoreCase ("https"); | |
| 96 | + this.address = addr; | |
| 97 | + contexts = new ContextList(); | |
| 98 | + schan = ServerSocketChannel.open(); | |
| 99 | + if (addr != null) { | |
| 100 | + ServerSocket socket = schan.socket(); | |
| 101 | + socket.bind (addr, backlog); | |
| 102 | + bound = true; | |
| 103 | + } | |
| 104 | + selector = Selector.open (); | |
| 105 | + schan.configureBlocking (false); | |
| 106 | + listenerKey = schan.register (selector, SelectionKey.OP_ACCEPT); | |
| 107 | + dispatcher = new Dispatcher(); | |
| 108 | + idleConnections = Collections.synchronizedSet (new HashSet<HttpConnection>()); | |
| 109 | + allConnections = Collections.synchronizedSet (new HashSet<HttpConnection>()); | |
| 110 | + reqConnections = Collections.synchronizedSet (new HashSet<HttpConnection>()); | |
| 111 | + rspConnections = Collections.synchronizedSet (new HashSet<HttpConnection>()); | |
| 112 | + time = System.currentTimeMillis(); | |
| 113 | + timer = new Timer ("server-timer", true); | |
| 114 | + timer.schedule (new ServerTimerTask(), CLOCK_TICK, CLOCK_TICK); | |
| 115 | + if (timer1Enabled) { | |
| 116 | + timer1 = new Timer ("server-timer1", true); | |
| 117 | + timer1.schedule (new ServerTimerTask1(),TIMER_MILLIS,TIMER_MILLIS); | |
| 118 | + logger.config ("HttpServer timer1 enabled period in ms: "+TIMER_MILLIS); | |
| 119 | + logger.config ("MAX_REQ_TIME: "+MAX_REQ_TIME); | |
| 120 | + logger.config ("MAX_RSP_TIME: "+MAX_RSP_TIME); | |
| 121 | + } | |
| 122 | + events = new LinkedList<Event>(); | |
| 123 | + logger.config ("HttpServer created "+protocol+" "+ addr); | |
| 124 | + } | |
| 125 | + | |
| 126 | + public void bind (InetSocketAddress addr, int backlog) throws IOException { | |
| 127 | + if (bound) { | |
| 128 | + throw new BindException ("HttpServer already bound"); | |
| 129 | + } | |
| 130 | + if (addr == null) { | |
| 131 | + throw new NullPointerException ("null address"); | |
| 132 | + } | |
| 133 | + ServerSocket socket = schan.socket(); | |
| 134 | + socket.bind (addr, backlog); | |
| 135 | + bound = true; | |
| 136 | + } | |
| 137 | + | |
| 138 | + public void start () { | |
| 139 | + if (!bound || started || finished) { | |
| 140 | + throw new IllegalStateException ("server in wrong state"); | |
| 141 | + } | |
| 142 | + if (executor == null) { | |
| 143 | + executor = new DefaultExecutor(); | |
| 144 | + } | |
| 145 | + Thread t = new Thread (dispatcher); | |
| 146 | + started = true; | |
| 147 | + t.start(); | |
| 148 | + } | |
| 149 | + | |
| 150 | + public void setExecutor (Executor executor) { | |
| 151 | + if (started) { | |
| 152 | + throw new IllegalStateException ("server already started"); | |
| 153 | + } | |
| 154 | + this.executor = executor; | |
| 155 | + } | |
| 156 | + | |
| 157 | + private static class DefaultExecutor implements Executor { | |
| 158 | + public void execute (Runnable task) { | |
| 159 | + task.run(); | |
| 160 | + } | |
| 161 | + } | |
| 162 | + | |
| 163 | + public Executor getExecutor () { | |
| 164 | + return executor; | |
| 165 | + } | |
| 166 | + | |
| 167 | + public void setHttpsConfigurator (HttpsConfigurator config) { | |
| 168 | + if (config == null) { | |
| 169 | + throw new NullPointerException ("null HttpsConfigurator"); | |
| 170 | + } | |
| 171 | + if (started) { | |
| 172 | + throw new IllegalStateException ("server already started"); | |
| 173 | + } | |
| 174 | + this.httpsConfig = config; | |
| 175 | + sslContext = config.getSSLContext(); | |
| 176 | + } | |
| 177 | + | |
| 178 | + public HttpsConfigurator getHttpsConfigurator () { | |
| 179 | + return httpsConfig; | |
| 180 | + } | |
| 181 | + | |
| 182 | + public void stop (int delay) { | |
| 183 | + if (delay < 0) { | |
| 184 | + throw new IllegalArgumentException ("negative delay parameter"); | |
| 185 | + } | |
| 186 | + terminating = true; | |
| 187 | + try { schan.close(); } catch (IOException e) {} | |
| 188 | + selector.wakeup(); | |
| 189 | + long latest = System.currentTimeMillis() + delay * 1000; | |
| 190 | + while (System.currentTimeMillis() < latest) { | |
| 191 | + delay(); | |
| 192 | + if (finished) { | |
| 193 | + break; | |
| 194 | + } | |
| 195 | + } | |
| 196 | + finished = true; | |
| 197 | + selector.wakeup(); | |
| 198 | + synchronized (allConnections) { | |
| 199 | + for (HttpConnection c : allConnections) { | |
| 200 | + c.close(); | |
| 201 | + } | |
| 202 | + } | |
| 203 | + allConnections.clear(); | |
| 204 | + idleConnections.clear(); | |
| 205 | + timer.cancel(); | |
| 206 | + if (timer1Enabled) { | |
| 207 | + timer1.cancel(); | |
| 208 | + } | |
| 209 | + } | |
| 210 | + | |
| 211 | + Dispatcher dispatcher; | |
| 212 | + | |
| 213 | + public synchronized HttpContextImpl createContext (String path, HttpHandler handler) { | |
| 214 | + if (handler == null || path == null) { | |
| 215 | + throw new NullPointerException ("null handler, or path parameter"); | |
| 216 | + } | |
| 217 | + HttpContextImpl context = new HttpContextImpl (protocol, path, handler, this); | |
| 218 | + contexts.add (context); | |
| 219 | + logger.config ("context created: " + path); | |
| 220 | + return context; | |
| 221 | + } | |
| 222 | + | |
| 223 | + public synchronized HttpContextImpl createContext (String path) { | |
| 224 | + if (path == null) { | |
| 225 | + throw new NullPointerException ("null path parameter"); | |
| 226 | + } | |
| 227 | + HttpContextImpl context = new HttpContextImpl (protocol, path, null, this); | |
| 228 | + contexts.add (context); | |
| 229 | + logger.config ("context created: " + path); | |
| 230 | + return context; | |
| 231 | + } | |
| 232 | + | |
| 233 | + public synchronized void removeContext (String path) throws IllegalArgumentException { | |
| 234 | + if (path == null) { | |
| 235 | + throw new NullPointerException ("null path parameter"); | |
| 236 | + } | |
| 237 | + contexts.remove (protocol, path); | |
| 238 | + logger.config ("context removed: " + path); | |
| 239 | + } | |
| 240 | + | |
| 241 | + public synchronized void removeContext (HttpContext context) throws IllegalArgumentException { | |
| 242 | + if (!(context instanceof HttpContextImpl)) { | |
| 243 | + throw new IllegalArgumentException ("wrong HttpContext type"); | |
| 244 | + } | |
| 245 | + contexts.remove ((HttpContextImpl)context); | |
| 246 | + logger.config ("context removed: " + context.getPath()); | |
| 247 | + } | |
| 248 | + | |
| 249 | + public InetSocketAddress getAddress() { | |
| 250 | + return (InetSocketAddress)schan.socket().getLocalSocketAddress(); | |
| 251 | + } | |
| 252 | + | |
| 253 | + Selector getSelector () { | |
| 254 | + return selector; | |
| 255 | + } | |
| 256 | + | |
| 257 | + void addEvent (Event r) { | |
| 258 | + synchronized (lolock) { | |
| 259 | + events.add (r); | |
| 260 | + selector.wakeup(); | |
| 261 | + } | |
| 262 | + } | |
| 263 | + | |
| 264 | + /* main server listener task */ | |
| 265 | + | |
| 266 | + class Dispatcher implements Runnable { | |
| 267 | + | |
| 268 | + private void handleEvent (Event r) { | |
| 269 | + ExchangeImpl t = r.exchange; | |
| 270 | + HttpConnection c = t.getConnection(); | |
| 271 | + try { | |
| 272 | + if (r instanceof WriteFinishedEvent) { | |
| 273 | + | |
| 274 | + int exchanges = endExchange(); | |
| 275 | + if (terminating && exchanges == 0) { | |
| 276 | + finished = true; | |
| 277 | + } | |
| 278 | + responseCompleted (c); | |
| 279 | + LeftOverInputStream is = t.getOriginalInputStream(); | |
| 280 | + if (!is.isEOF()) { | |
| 281 | + t.close = true; | |
| 282 | + } | |
| 283 | + if (t.close || idleConnections.size() >= MAX_IDLE_CONNECTIONS) { | |
| 284 | + c.close(); | |
| 285 | + allConnections.remove (c); | |
| 286 | + } else { | |
| 287 | + if (is.isDataBuffered()) { | |
| 288 | + /* don't re-enable the interestops, just handle it */ | |
| 289 | + requestStarted (c); | |
| 290 | + handle (c.getChannel(), c); | |
| 291 | + } else { | |
| 292 | + connsToRegister.add (c); | |
| 293 | + } | |
| 294 | + } | |
| 295 | + } | |
| 296 | + } catch (IOException e) { | |
| 297 | + logger.log ( | |
| 298 | + Level.FINER, "Dispatcher (1)", e | |
| 299 | + ); | |
| 300 | + c.close(); | |
| 301 | + } | |
| 302 | + } | |
| 303 | + | |
| 304 | + final LinkedList<HttpConnection> connsToRegister = | |
| 305 | + new LinkedList<HttpConnection>(); | |
| 306 | + | |
| 307 | + void reRegister (HttpConnection c) { | |
| 308 | + /* re-register with selector */ | |
| 309 | + try { | |
| 310 | + SocketChannel chan = c.getChannel(); | |
| 311 | + chan.configureBlocking (false); | |
| 312 | + SelectionKey key = chan.register (selector, SelectionKey.OP_READ); | |
| 313 | + key.attach (c); | |
| 314 | + c.selectionKey = key; | |
| 315 | + c.time = getTime() + IDLE_INTERVAL; | |
| 316 | + idleConnections.add (c); | |
| 317 | + } catch (IOException e) { | |
| 318 | + dprint(e); | |
| 319 | + logger.log(Level.FINER, "Dispatcher(8)", e); | |
| 320 | + c.close(); | |
| 321 | + } | |
| 322 | + } | |
| 323 | + | |
| 324 | + public void run() { | |
| 325 | + while (!finished) { | |
| 326 | + try { | |
| 327 | + ListIterator<HttpConnection> li = | |
| 328 | + connsToRegister.listIterator(); | |
| 329 | + for (HttpConnection c : connsToRegister) { | |
| 330 | + reRegister(c); | |
| 331 | + } | |
| 332 | + connsToRegister.clear(); | |
| 333 | + | |
| 334 | + List<Event> list = null; | |
| 335 | + selector.select(1000); | |
| 336 | + synchronized (lolock) { | |
| 337 | + if (events.size() > 0) { | |
| 338 | + list = events; | |
| 339 | + events = new LinkedList<Event>(); | |
| 340 | + } | |
| 341 | + } | |
| 342 | + | |
| 343 | + if (list != null) { | |
| 344 | + for (Event r: list) { | |
| 345 | + handleEvent (r); | |
| 346 | + } | |
| 347 | + } | |
| 348 | + | |
| 349 | + /* process the selected list now */ | |
| 350 | + | |
| 351 | + Set<SelectionKey> selected = selector.selectedKeys(); | |
| 352 | + Iterator<SelectionKey> iter = selected.iterator(); | |
| 353 | + while (iter.hasNext()) { | |
| 354 | + SelectionKey key = iter.next(); | |
| 355 | + iter.remove (); | |
| 356 | + if (key.equals (listenerKey)) { | |
| 357 | + if (terminating) { | |
| 358 | + continue; | |
| 359 | + } | |
| 360 | + SocketChannel chan = schan.accept(); | |
| 361 | + if (chan == null) { | |
| 362 | + continue; /* cancel something ? */ | |
| 363 | + } | |
| 364 | + chan.configureBlocking (false); | |
| 365 | + SelectionKey newkey = chan.register (selector, SelectionKey.OP_READ); | |
| 366 | + HttpConnection c = new HttpConnection (); | |
| 367 | + c.selectionKey = newkey; | |
| 368 | + c.setChannel (chan); | |
| 369 | + newkey.attach (c); | |
| 370 | + requestStarted (c); | |
| 371 | + allConnections.add (c); | |
| 372 | + } else { | |
| 373 | + try { | |
| 374 | + if (key.isReadable()) { | |
| 375 | + boolean closed; | |
| 376 | + SocketChannel chan = (SocketChannel)key.channel(); | |
| 377 | + HttpConnection conn = (HttpConnection)key.attachment(); | |
| 378 | + | |
| 379 | + key.cancel(); | |
| 380 | + chan.configureBlocking (true); | |
| 381 | + if (idleConnections.remove(conn)) { | |
| 382 | + // was an idle connection so add it | |
| 383 | + // to reqConnections set. | |
| 384 | + requestStarted (conn); | |
| 385 | + } | |
| 386 | + handle (chan, conn); | |
| 387 | + } else { | |
| 388 | + assert false; | |
| 389 | + } | |
| 390 | + } catch (CancelledKeyException e) { | |
| 391 | + handleException(key, null); | |
| 392 | + } catch (IOException e) { | |
| 393 | + handleException(key, e); | |
| 394 | + } | |
| 395 | + } | |
| 396 | + } | |
| 397 | + // call the selector just to process the cancelled keys | |
| 398 | + selector.selectNow(); | |
| 399 | + } catch (IOException e) { | |
| 400 | + logger.log (Level.FINER, "Dispatcher (4)", e); | |
| 401 | + } catch (Exception e) { | |
| 402 | + e.printStackTrace(); | |
| 403 | + logger.log (Level.FINER, "Dispatcher (7)", e); | |
| 404 | + } | |
| 405 | + } | |
| 406 | + } | |
| 407 | + | |
| 408 | + private void handleException (SelectionKey key, Exception e) { | |
| 409 | + HttpConnection conn = (HttpConnection)key.attachment(); | |
| 410 | + if (e != null) { | |
| 411 | + logger.log (Level.FINER, "Dispatcher (2)", e); | |
| 412 | + } | |
| 413 | + closeConnection(conn); | |
| 414 | + } | |
| 415 | + | |
| 416 | + public void handle (SocketChannel chan, HttpConnection conn) | |
| 417 | + throws IOException | |
| 418 | + { | |
| 419 | + try { | |
| 420 | + Exchange t = new Exchange (chan, protocol, conn); | |
| 421 | + executor.execute (t); | |
| 422 | + } catch (HttpError e1) { | |
| 423 | + logger.log (Level.FINER, "Dispatcher (4)", e1); | |
| 424 | + closeConnection(conn); | |
| 425 | + } catch (IOException e) { | |
| 426 | + logger.log (Level.FINER, "Dispatcher (5)", e); | |
| 427 | + closeConnection(conn); | |
| 428 | + } | |
| 429 | + } | |
| 430 | + } | |
| 431 | + | |
| 432 | + static boolean debug = ServerConfig.debugEnabled (); | |
| 433 | + | |
| 434 | + static synchronized void dprint (String s) { | |
| 435 | + if (debug) { | |
| 436 | + System.out.println (s); | |
| 437 | + } | |
| 438 | + } | |
| 439 | + | |
| 440 | + static synchronized void dprint (Exception e) { | |
| 441 | + if (debug) { | |
| 442 | + System.out.println (e); | |
| 443 | + e.printStackTrace(); | |
| 444 | + } | |
| 445 | + } | |
| 446 | + | |
| 447 | + Logger getLogger () { | |
| 448 | + return logger; | |
| 449 | + } | |
| 450 | + | |
| 451 | + private void closeConnection(HttpConnection conn) { | |
| 452 | + conn.close(); | |
| 453 | + allConnections.remove(conn); | |
| 454 | + switch (conn.getState()) { | |
| 455 | + case REQUEST: | |
| 456 | + reqConnections.remove(conn); | |
| 457 | + break; | |
| 458 | + case RESPONSE: | |
| 459 | + rspConnections.remove(conn); | |
| 460 | + break; | |
| 461 | + case IDLE: | |
| 462 | + idleConnections.remove(conn); | |
| 463 | + break; | |
| 464 | + } | |
| 465 | + assert !reqConnections.remove(conn); | |
| 466 | + assert !rspConnections.remove(conn); | |
| 467 | + assert !idleConnections.remove(conn); | |
| 468 | + } | |
| 469 | + | |
| 470 | + /* per exchange task */ | |
| 471 | + | |
| 472 | + class Exchange implements Runnable { | |
| 473 | + SocketChannel chan; | |
| 474 | + HttpConnection connection; | |
| 475 | + HttpContextImpl context; | |
| 476 | + InputStream rawin; | |
| 477 | + OutputStream rawout; | |
| 478 | + String protocol; | |
| 479 | + ExchangeImpl tx; | |
| 480 | + HttpContextImpl ctx; | |
| 481 | + boolean rejected = false; | |
| 482 | + | |
| 483 | + Exchange (SocketChannel chan, String protocol, HttpConnection conn) throws IOException { | |
| 484 | + this.chan = chan; | |
| 485 | + this.connection = conn; | |
| 486 | + this.protocol = protocol; | |
| 487 | + } | |
| 488 | + | |
| 489 | + public void run () { | |
| 490 | + /* context will be null for new connections */ | |
| 491 | + context = connection.getHttpContext(); | |
| 492 | + boolean newconnection; | |
| 493 | + SSLEngine engine = null; | |
| 494 | + String requestLine = null; | |
| 495 | + SSLStreams sslStreams = null; | |
| 496 | + try { | |
| 497 | + if (context != null ) { | |
| 498 | + this.rawin = connection.getInputStream(); | |
| 499 | + this.rawout = connection.getRawOutputStream(); | |
| 500 | + newconnection = false; | |
| 501 | + } else { | |
| 502 | + /* figure out what kind of connection this is */ | |
| 503 | + newconnection = true; | |
| 504 | + if (https) { | |
| 505 | + if (sslContext == null) { | |
| 506 | + logger.warning ("SSL connection received. No https contxt created"); | |
| 507 | + throw new HttpError ("No SSL context established"); | |
| 508 | + } | |
| 509 | + sslStreams = new SSLStreams (ServerImpl.this, sslContext, chan); | |
| 510 | + rawin = sslStreams.getInputStream(); | |
| 511 | + rawout = sslStreams.getOutputStream(); | |
| 512 | + engine = sslStreams.getSSLEngine(); | |
| 513 | + connection.sslStreams = sslStreams; | |
| 514 | + } else { | |
| 515 | + rawin = new BufferedInputStream( | |
| 516 | + new Request.ReadStream ( | |
| 517 | + ServerImpl.this, chan | |
| 518 | + )); | |
| 519 | + rawout = new Request.WriteStream ( | |
| 520 | + ServerImpl.this, chan | |
| 521 | + ); | |
| 522 | + } | |
| 523 | + connection.raw = rawin; | |
| 524 | + connection.rawout = rawout; | |
| 525 | + } | |
| 526 | + Request req = new Request (rawin, rawout); | |
| 527 | + requestLine = req.requestLine(); | |
| 528 | + if (requestLine == null) { | |
| 529 | + /* connection closed */ | |
| 530 | + closeConnection(connection); | |
| 531 | + return; | |
| 532 | + } | |
| 533 | + int space = requestLine.indexOf (' '); | |
| 534 | + if (space == -1) { | |
| 535 | + reject (Code.HTTP_BAD_REQUEST, | |
| 536 | + requestLine, "Bad request line"); | |
| 537 | + return; | |
| 538 | + } | |
| 539 | + String method = requestLine.substring (0, space); | |
| 540 | + int start = space+1; | |
| 541 | + space = requestLine.indexOf(' ', start); | |
| 542 | + if (space == -1) { | |
| 543 | + reject (Code.HTTP_BAD_REQUEST, | |
| 544 | + requestLine, "Bad request line"); | |
| 545 | + return; | |
| 546 | + } | |
| 547 | + String uriStr = requestLine.substring (start, space); | |
| 548 | + URI uri = new URI (uriStr); | |
| 549 | + start = space+1; | |
| 550 | + String version = requestLine.substring (start); | |
| 551 | + Headers headers = req.headers(); | |
| 552 | + String s = headers.getFirst ("Transfer-encoding"); | |
| 553 | + long clen = 0L; | |
| 554 | + if (s !=null && s.equalsIgnoreCase ("chunked")) { | |
| 555 | + clen = -1L; | |
| 556 | + } else { | |
| 557 | + s = headers.getFirst ("Content-Length"); | |
| 558 | + if (s != null) { | |
| 559 | + clen = Long.parseLong(s); | |
| 560 | + } | |
| 561 | + if (clen == 0) { | |
| 562 | + requestCompleted (connection); | |
| 563 | + } | |
| 564 | + } | |
| 565 | + ctx = contexts.findContext (protocol, uri.getPath()); | |
| 566 | + if (ctx == null) { | |
| 567 | + reject (Code.HTTP_NOT_FOUND, | |
| 568 | + requestLine, "No context found for request"); | |
| 569 | + return; | |
| 570 | + } | |
| 571 | + connection.setContext (ctx); | |
| 572 | + if (ctx.getHandler() == null) { | |
| 573 | + reject (Code.HTTP_INTERNAL_ERROR, | |
| 574 | + requestLine, "No handler for context"); | |
| 575 | + return; | |
| 576 | + } | |
| 577 | + tx = new ExchangeImpl ( | |
| 578 | + method, uri, req, clen, connection | |
| 579 | + ); | |
| 580 | + String chdr = headers.getFirst("Connection"); | |
| 581 | + Headers rheaders = tx.getResponseHeaders(); | |
| 582 | + | |
| 583 | + if (chdr != null && chdr.equalsIgnoreCase ("close")) { | |
| 584 | + tx.close = true; | |
| 585 | + } | |
| 586 | + if (version.equalsIgnoreCase ("http/1.0")) { | |
| 587 | + tx.http10 = true; | |
| 588 | + if (chdr == null) { | |
| 589 | + tx.close = true; | |
| 590 | + rheaders.set ("Connection", "close"); | |
| 591 | + } else if (chdr.equalsIgnoreCase ("keep-alive")) { | |
| 592 | + rheaders.set ("Connection", "keep-alive"); | |
| 593 | + int idle=(int)ServerConfig.getIdleInterval()/1000; | |
| 594 | + int max=(int)ServerConfig.getMaxIdleConnections(); | |
| 595 | + String val = "timeout="+idle+", max="+max; | |
| 596 | + rheaders.set ("Keep-Alive", val); | |
| 597 | + } | |
| 598 | + } | |
| 599 | + | |
| 600 | + if (newconnection) { | |
| 601 | + connection.setParameters ( | |
| 602 | + rawin, rawout, chan, engine, sslStreams, | |
| 603 | + sslContext, protocol, ctx, rawin | |
| 604 | + ); | |
| 605 | + } | |
| 606 | + /* check if client sent an Expect 100 Continue. | |
| 607 | + * In that case, need to send an interim response. | |
| 608 | + * In future API may be modified to allow app to | |
| 609 | + * be involved in this process. | |
| 610 | + */ | |
| 611 | + String exp = headers.getFirst("Expect"); | |
| 612 | + if (exp != null && exp.equalsIgnoreCase ("100-continue")) { | |
| 613 | + logReply (100, requestLine, null); | |
| 614 | + sendReply ( | |
| 615 | + Code.HTTP_CONTINUE, false, null | |
| 616 | + ); | |
| 617 | + } | |
| 618 | + /* uf is the list of filters seen/set by the user. | |
| 619 | + * sf is the list of filters established internally | |
| 620 | + * and which are not visible to the user. uc and sc | |
| 621 | + * are the corresponding Filter.Chains. | |
| 622 | + * They are linked together by a LinkHandler | |
| 623 | + * so that they can both be invoked in one call. | |
| 624 | + */ | |
| 625 | + List<Filter> sf = ctx.getSystemFilters(); | |
| 626 | + List<Filter> uf = ctx.getFilters(); | |
| 627 | + | |
| 628 | + Filter.Chain sc = new Filter.Chain(sf, ctx.getHandler()); | |
| 629 | + Filter.Chain uc = new Filter.Chain(uf, new LinkHandler (sc)); | |
| 630 | + | |
| 631 | + /* set up the two stream references */ | |
| 632 | + tx.getRequestBody(); | |
| 633 | + tx.getResponseBody(); | |
| 634 | + if (https) { | |
| 635 | + uc.doFilter (new HttpsExchangeImpl (tx)); | |
| 636 | + } else { | |
| 637 | + uc.doFilter (new HttpExchangeImpl (tx)); | |
| 638 | + } | |
| 639 | + | |
| 640 | + } catch (IOException e1) { | |
| 641 | + logger.log (Level.FINER, "ServerImpl.Exchange (1)", e1); | |
| 642 | + closeConnection(connection); | |
| 643 | + } catch (NumberFormatException e3) { | |
| 644 | + reject (Code.HTTP_BAD_REQUEST, | |
| 645 | + requestLine, "NumberFormatException thrown"); | |
| 646 | + } catch (URISyntaxException e) { | |
| 647 | + reject (Code.HTTP_BAD_REQUEST, | |
| 648 | + requestLine, "URISyntaxException thrown"); | |
| 649 | + } catch (Exception e4) { | |
| 650 | + logger.log (Level.FINER, "ServerImpl.Exchange (2)", e4); | |
| 651 | + closeConnection(connection); | |
| 652 | + } | |
| 653 | + } | |
| 654 | + | |
| 655 | + /* used to link to 2 or more Filter.Chains together */ | |
| 656 | + | |
| 657 | + class LinkHandler implements HttpHandler { | |
| 658 | + Filter.Chain nextChain; | |
| 659 | + | |
| 660 | + LinkHandler (Filter.Chain nextChain) { | |
| 661 | + this.nextChain = nextChain; | |
| 662 | + } | |
| 663 | + | |
| 664 | + public void handle (HttpExchange exchange) throws IOException { | |
| 665 | + nextChain.doFilter (exchange); | |
| 666 | + } | |
| 667 | + } | |
| 668 | + | |
| 669 | + void reject (int code, String requestStr, String message) { | |
| 670 | + rejected = true; | |
| 671 | + logReply (code, requestStr, message); | |
| 672 | + sendReply ( | |
| 673 | + code, false, "<h1>"+code+Code.msg(code)+"</h1>"+message | |
| 674 | + ); | |
| 675 | + closeConnection(connection); | |
| 676 | + } | |
| 677 | + | |
| 678 | + void sendReply ( | |
| 679 | + int code, boolean closeNow, String text) | |
| 680 | + { | |
| 681 | + try { | |
| 682 | + StringBuilder builder = new StringBuilder (512); | |
| 683 | + builder.append ("HTTP/1.1 ") | |
| 684 | + .append (code).append (Code.msg(code)).append ("\r\n"); | |
| 685 | + | |
| 686 | + if (text != null && text.length() != 0) { | |
| 687 | + builder.append ("Content-Length: ") | |
| 688 | + .append (text.length()).append ("\r\n") | |
| 689 | + .append ("Content-Type: text/html\r\n"); | |
| 690 | + } else { | |
| 691 | + builder.append ("Content-Length: 0\r\n"); | |
| 692 | + text = ""; | |
| 693 | + } | |
| 694 | + if (closeNow) { | |
| 695 | + builder.append ("Connection: close\r\n"); | |
| 696 | + } | |
| 697 | + builder.append ("\r\n").append (text); | |
| 698 | + String s = builder.toString(); | |
| 699 | + byte[] b = s.getBytes("ISO8859_1"); | |
| 700 | + rawout.write (b); | |
| 701 | + rawout.flush(); | |
| 702 | + if (closeNow) { | |
| 703 | + closeConnection(connection); | |
| 704 | + } | |
| 705 | + } catch (IOException e) { | |
| 706 | + logger.log (Level.FINER, "ServerImpl.sendReply", e); | |
| 707 | + closeConnection(connection); | |
| 708 | + } | |
| 709 | + } | |
| 710 | + | |
| 711 | + } | |
| 712 | + | |
| 713 | + void logReply (int code, String requestStr, String text) { | |
| 714 | + if (!logger.isLoggable(Level.FINE)) { | |
| 715 | + return; | |
| 716 | + } | |
| 717 | + if (text == null) { | |
| 718 | + text = ""; | |
| 719 | + } | |
| 720 | + String r; | |
| 721 | + if (requestStr.length() > 80) { | |
| 722 | + r = requestStr.substring (0, 80) + "<TRUNCATED>"; | |
| 723 | + } else { | |
| 724 | + r = requestStr; | |
| 725 | + } | |
| 726 | + String message = r + " [" + code + " " + | |
| 727 | + Code.msg(code) + "] ("+text+")"; | |
| 728 | + logger.fine (message); | |
| 729 | + } | |
| 730 | + | |
| 731 | + long getTicks() { | |
| 732 | + return ticks; | |
| 733 | + } | |
| 734 | + | |
| 735 | + public long getTime() { | |
| 736 | + return time; | |
| 737 | + } | |
| 738 | + | |
| 739 | + void delay () { | |
| 740 | + Thread.yield(); | |
| 741 | + try { | |
| 742 | + Thread.sleep (200); | |
| 743 | + } catch (InterruptedException e) {} | |
| 744 | + } | |
| 745 | + | |
| 746 | + private int exchangeCount = 0; | |
| 747 | + | |
| 748 | + synchronized void startExchange () { | |
| 749 | + exchangeCount ++; | |
| 750 | + } | |
| 751 | + | |
| 752 | + synchronized int endExchange () { | |
| 753 | + exchangeCount --; | |
| 754 | + assert exchangeCount >= 0; | |
| 755 | + return exchangeCount; | |
| 756 | + } | |
| 757 | + | |
| 758 | + HttpServer getWrapper () { | |
| 759 | + return wrapper; | |
| 760 | + } | |
| 761 | + | |
| 762 | + void requestStarted (HttpConnection c) { | |
| 763 | + c.creationTime = getTime(); | |
| 764 | + c.setState (State.REQUEST); | |
| 765 | + reqConnections.add (c); | |
| 766 | + } | |
| 767 | + | |
| 768 | + // called after a request has been completely read | |
| 769 | + // by the server. This stops the timer which would | |
| 770 | + // close the connection if the request doesn't arrive | |
| 771 | + // quickly enough. It then starts the timer | |
| 772 | + // that ensures the client reads the response in a timely | |
| 773 | + // fashion. | |
| 774 | + | |
| 775 | + void requestCompleted (HttpConnection c) { | |
| 776 | + assert c.getState() == State.REQUEST; | |
| 777 | + reqConnections.remove (c); | |
| 778 | + c.rspStartedTime = getTime(); | |
| 779 | + rspConnections.add (c); | |
| 780 | + c.setState (State.RESPONSE); | |
| 781 | + } | |
| 782 | + | |
| 783 | + // called after response has been sent | |
| 784 | + void responseCompleted (HttpConnection c) { | |
| 785 | + assert c.getState() == State.RESPONSE; | |
| 786 | + rspConnections.remove (c); | |
| 787 | + c.setState (State.IDLE); | |
| 788 | + } | |
| 789 | + | |
| 790 | + /** | |
| 791 | + * TimerTask run every CLOCK_TICK ms | |
| 792 | + */ | |
| 793 | + class ServerTimerTask extends TimerTask { | |
| 794 | + public void run () { | |
| 795 | + LinkedList<HttpConnection> toClose = new LinkedList<HttpConnection>(); | |
| 796 | + time = System.currentTimeMillis(); | |
| 797 | + ticks ++; | |
| 798 | + synchronized (idleConnections) { | |
| 799 | + for (HttpConnection c : idleConnections) { | |
| 800 | + if (c.time <= time) { | |
| 801 | + toClose.add (c); | |
| 802 | + } | |
| 803 | + } | |
| 804 | + for (HttpConnection c : toClose) { | |
| 805 | + idleConnections.remove (c); | |
| 806 | + allConnections.remove (c); | |
| 807 | + c.close(); | |
| 808 | + } | |
| 809 | + } | |
| 810 | + } | |
| 811 | + } | |
| 812 | + | |
| 813 | + class ServerTimerTask1 extends TimerTask { | |
| 814 | + | |
| 815 | + // runs every TIMER_MILLIS | |
| 816 | + public void run () { | |
| 817 | + LinkedList<HttpConnection> toClose = new LinkedList<HttpConnection>(); | |
| 818 | + time = System.currentTimeMillis(); | |
| 819 | + synchronized (reqConnections) { | |
| 820 | + if (MAX_REQ_TIME != -1) { | |
| 821 | + for (HttpConnection c : reqConnections) { | |
| 822 | + if (c.creationTime + TIMER_MILLIS + MAX_REQ_TIME <= time) { | |
| 823 | + toClose.add (c); | |
| 824 | + } | |
| 825 | + } | |
| 826 | + for (HttpConnection c : toClose) { | |
| 827 | + logger.log (Level.FINE, "closing: no request: " + c); | |
| 828 | + reqConnections.remove (c); | |
| 829 | + allConnections.remove (c); | |
| 830 | + c.close(); | |
| 831 | + } | |
| 832 | + } | |
| 833 | + } | |
| 834 | + toClose = new LinkedList<HttpConnection>(); | |
| 835 | + synchronized (rspConnections) { | |
| 836 | + if (MAX_RSP_TIME != -1) { | |
| 837 | + for (HttpConnection c : rspConnections) { | |
| 838 | + if (c.rspStartedTime + TIMER_MILLIS +MAX_RSP_TIME <= time) { | |
| 839 | + toClose.add (c); | |
| 840 | + } | |
| 841 | + } | |
| 842 | + for (HttpConnection c : toClose) { | |
| 843 | + logger.log (Level.FINE, "closing: no response: " + c); | |
| 844 | + rspConnections.remove (c); | |
| 845 | + allConnections.remove (c); | |
| 846 | + c.close(); | |
| 847 | + } | |
| 848 | + } | |
| 849 | + } | |
| 850 | + } | |
| 851 | + } | |
| 852 | + | |
| 853 | + void logStackTrace (String s) { | |
| 854 | + logger.finest (s); | |
| 855 | + StringBuilder b = new StringBuilder (); | |
| 856 | + StackTraceElement[] e = Thread.currentThread().getStackTrace(); | |
| 857 | + for (int i=0; i<e.length; i++) { | |
| 858 | + b.append (e[i].toString()).append("\n"); | |
| 859 | + } | |
| 860 | + logger.finest (b.toString()); | |
| 861 | + } | |
| 862 | + | |
| 863 | + static long getTimeMillis(long secs) { | |
| 864 | + if (secs == -1) { | |
| 865 | + return -1; | |
| 866 | + } else { | |
| 867 | + return secs * 1000; | |
| 868 | + } | |
| 869 | + } | |
| 870 | +} | |