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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 | } | ||