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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.util.*; | |
| 29 | +import java.nio.*; | |
| 30 | +import java.net.*; | |
| 31 | +import java.io.*; | |
| 32 | +import java.nio.channels.*; | |
| 33 | +import com.sun.net.httpserver.*; | |
| 34 | +import com.sun.net.httpserver.spi.*; | |
| 35 | + | |
| 36 | +/** | |
| 37 | + */ | |
| 38 | +class Request { | |
| 39 | + | |
| 40 | + final static int BUF_LEN = 2048; | |
| 41 | + final static byte CR = 13; | |
| 42 | + final static byte LF = 10; | |
| 43 | + | |
| 44 | + private String startLine; | |
| 45 | + private SocketChannel chan; | |
| 46 | + private InputStream is; | |
| 47 | + private OutputStream os; | |
| 48 | + | |
| 49 | + Request (InputStream rawInputStream, OutputStream rawout) throws IOException { | |
| 50 | + this.chan = chan; | |
| 51 | + is = rawInputStream; | |
| 52 | + os = rawout; | |
| 53 | + do { | |
| 54 | + startLine = readLine(); | |
| 55 | + if (startLine == null) { | |
| 56 | + return; | |
| 57 | + } | |
| 58 | + /* skip blank lines */ | |
| 59 | + } while (startLine == null ? false : startLine.equals ("")); | |
| 60 | + } | |
| 61 | + | |
| 62 | + | |
| 63 | + char[] buf = new char [BUF_LEN]; | |
| 64 | + int pos; | |
| 65 | + StringBuffer lineBuf; | |
| 66 | + | |
| 67 | + public InputStream inputStream () { | |
| 68 | + return is; | |
| 69 | + } | |
| 70 | + | |
| 71 | + public OutputStream outputStream () { | |
| 72 | + return os; | |
| 73 | + } | |
| 74 | + | |
| 75 | + /** | |
| 76 | + * read a line from the stream returning as a String. | |
| 77 | + * Not used for reading headers. | |
| 78 | + */ | |
| 79 | + | |
| 80 | + public String readLine () throws IOException { | |
| 81 | + boolean gotCR = false, gotLF = false; | |
| 82 | + pos = 0; lineBuf = new StringBuffer(); | |
| 83 | + while (!gotLF) { | |
| 84 | + int c = is.read(); | |
| 85 | + if (c == -1) { | |
| 86 | + return null; | |
| 87 | + } | |
| 88 | + if (gotCR) { | |
| 89 | + if (c == LF) { | |
| 90 | + gotLF = true; | |
| 91 | + } else { | |
| 92 | + gotCR = false; | |
| 93 | + consume (CR); | |
| 94 | + consume (c); | |
| 95 | + } | |
| 96 | + } else { | |
| 97 | + if (c == CR) { | |
| 98 | + gotCR = true; | |
| 99 | + } else { | |
| 100 | + consume (c); | |
| 101 | + } | |
| 102 | + } | |
| 103 | + } | |
| 104 | + lineBuf.append (buf, 0, pos); | |
| 105 | + return new String (lineBuf); | |
| 106 | + } | |
| 107 | + | |
| 108 | + private void consume (int c) { | |
| 109 | + if (pos == BUF_LEN) { | |
| 110 | + lineBuf.append (buf); | |
| 111 | + pos = 0; | |
| 112 | + } | |
| 113 | + buf[pos++] = (char)c; | |
| 114 | + } | |
| 115 | + | |
| 116 | + /** | |
| 117 | + * returns the request line (first line of a request) | |
| 118 | + */ | |
| 119 | + public String requestLine () { | |
| 120 | + return startLine; | |
| 121 | + } | |
| 122 | + | |
| 123 | + Headers hdrs = null; | |
| 124 | + | |
| 125 | + Headers headers () throws IOException { | |
| 126 | + if (hdrs != null) { | |
| 127 | + return hdrs; | |
| 128 | + } | |
| 129 | + hdrs = new Headers(); | |
| 130 | + | |
| 131 | + char s[] = new char[10]; | |
| 132 | + int len = 0; | |
| 133 | + | |
| 134 | + int firstc = is.read(); | |
| 135 | + | |
| 136 | + // check for empty headers | |
| 137 | + if (firstc == CR || firstc == LF) { | |
| 138 | + int c = is.read(); | |
| 139 | + if (c == CR || c == LF) { | |
| 140 | + return hdrs; | |
| 141 | + } | |
| 142 | + s[0] = (char)firstc; | |
| 143 | + len = 1; | |
| 144 | + firstc = c; | |
| 145 | + } | |
| 146 | + | |
| 147 | + while (firstc != LF && firstc != CR && firstc >= 0) { | |
| 148 | + int keyend = -1; | |
| 149 | + int c; | |
| 150 | + boolean inKey = firstc > ' '; | |
| 151 | + s[len++] = (char) firstc; | |
| 152 | + parseloop:{ | |
| 153 | + while ((c = is.read()) >= 0) { | |
| 154 | + switch (c) { | |
| 155 | + case ':': | |
| 156 | + if (inKey && len > 0) | |
| 157 | + keyend = len; | |
| 158 | + inKey = false; | |
| 159 | + break; | |
| 160 | + case '\t': | |
| 161 | + c = ' '; | |
| 162 | + case ' ': | |
| 163 | + inKey = false; | |
| 164 | + break; | |
| 165 | + case CR: | |
| 166 | + case LF: | |
| 167 | + firstc = is.read(); | |
| 168 | + if (c == CR && firstc == LF) { | |
| 169 | + firstc = is.read(); | |
| 170 | + if (firstc == CR) | |
| 171 | + firstc = is.read(); | |
| 172 | + } | |
| 173 | + if (firstc == LF || firstc == CR || firstc > ' ') | |
| 174 | + break parseloop; | |
| 175 | + /* continuation */ | |
| 176 | + c = ' '; | |
| 177 | + break; | |
| 178 | + } | |
| 179 | + if (len >= s.length) { | |
| 180 | + char ns[] = new char[s.length * 2]; | |
| 181 | + System.arraycopy(s, 0, ns, 0, len); | |
| 182 | + s = ns; | |
| 183 | + } | |
| 184 | + s[len++] = (char) c; | |
| 185 | + } | |
| 186 | + firstc = -1; | |
| 187 | + } | |
| 188 | + while (len > 0 && s[len - 1] <= ' ') | |
| 189 | + len--; | |
| 190 | + String k; | |
| 191 | + if (keyend <= 0) { | |
| 192 | + k = null; | |
| 193 | + keyend = 0; | |
| 194 | + } else { | |
| 195 | + k = String.copyValueOf(s, 0, keyend); | |
| 196 | + if (keyend < len && s[keyend] == ':') | |
| 197 | + keyend++; | |
| 198 | + while (keyend < len && s[keyend] <= ' ') | |
| 199 | + keyend++; | |
| 200 | + } | |
| 201 | + String v; | |
| 202 | + if (keyend >= len) | |
| 203 | + v = new String(); | |
| 204 | + else | |
| 205 | + v = String.copyValueOf(s, keyend, len - keyend); | |
| 206 | + hdrs.add (k,v); | |
| 207 | + len = 0; | |
| 208 | + } | |
| 209 | + return hdrs; | |
| 210 | + } | |
| 211 | + | |
| 212 | + /** | |
| 213 | + * Implements blocking reading semantics on top of a non-blocking channel | |
| 214 | + */ | |
| 215 | + | |
| 216 | + static class ReadStream extends InputStream { | |
| 217 | + SocketChannel channel; | |
| 218 | + ByteBuffer chanbuf; | |
| 219 | + byte[] one; | |
| 220 | + private boolean closed = false, eof = false; | |
| 221 | + ByteBuffer markBuf; /* reads may be satisifed from this buffer */ | |
| 222 | + boolean marked; | |
| 223 | + boolean reset; | |
| 224 | + int readlimit; | |
| 225 | + static long readTimeout; | |
| 226 | + ServerImpl server; | |
| 227 | + final static int BUFSIZE = 8 * 1024; | |
| 228 | + | |
| 229 | + public ReadStream (ServerImpl server, SocketChannel chan) throws IOException { | |
| 230 | + this.channel = chan; | |
| 231 | + this.server = server; | |
| 232 | + chanbuf = ByteBuffer.allocate (BUFSIZE); | |
| 233 | + chanbuf.clear(); | |
| 234 | + one = new byte[1]; | |
| 235 | + closed = marked = reset = false; | |
| 236 | + } | |
| 237 | + | |
| 238 | + public synchronized int read (byte[] b) throws IOException { | |
| 239 | + return read (b, 0, b.length); | |
| 240 | + } | |
| 241 | + | |
| 242 | + public synchronized int read () throws IOException { | |
| 243 | + int result = read (one, 0, 1); | |
| 244 | + if (result == 1) { | |
| 245 | + return one[0] & 0xFF; | |
| 246 | + } else { | |
| 247 | + return -1; | |
| 248 | + } | |
| 249 | + } | |
| 250 | + | |
| 251 | + public synchronized int read (byte[] b, int off, int srclen) throws IOException { | |
| 252 | + | |
| 253 | + int canreturn, willreturn; | |
| 254 | + | |
| 255 | + if (closed) | |
| 256 | + throw new IOException ("Stream closed"); | |
| 257 | + | |
| 258 | + if (eof) { | |
| 259 | + return -1; | |
| 260 | + } | |
| 261 | + | |
| 262 | + assert channel.isBlocking(); | |
| 263 | + | |
| 264 | + if (off < 0 || srclen < 0|| srclen > (b.length-off)) { | |
| 265 | + throw new IndexOutOfBoundsException (); | |
| 266 | + } | |
| 267 | + | |
| 268 | + if (reset) { /* satisfy from markBuf */ | |
| 269 | + canreturn = markBuf.remaining (); | |
| 270 | + willreturn = canreturn>srclen ? srclen : canreturn; | |
| 271 | + markBuf.get(b, off, willreturn); | |
| 272 | + if (canreturn == willreturn) { | |
| 273 | + reset = false; | |
| 274 | + } | |
| 275 | + } else { /* satisfy from channel */ | |
| 276 | + chanbuf.clear (); | |
| 277 | + if (srclen < BUFSIZE) { | |
| 278 | + chanbuf.limit (srclen); | |
| 279 | + } | |
| 280 | + do { | |
| 281 | + willreturn = channel.read (chanbuf); | |
| 282 | + } while (willreturn == 0); | |
| 283 | + if (willreturn == -1) { | |
| 284 | + eof = true; | |
| 285 | + return -1; | |
| 286 | + } | |
| 287 | + chanbuf.flip (); | |
| 288 | + chanbuf.get(b, off, willreturn); | |
| 289 | + | |
| 290 | + if (marked) { /* copy into markBuf */ | |
| 291 | + try { | |
| 292 | + markBuf.put (b, off, willreturn); | |
| 293 | + } catch (BufferOverflowException e) { | |
| 294 | + marked = false; | |
| 295 | + } | |
| 296 | + } | |
| 297 | + } | |
| 298 | + return willreturn; | |
| 299 | + } | |
| 300 | + | |
| 301 | + public boolean markSupported () { | |
| 302 | + return true; | |
| 303 | + } | |
| 304 | + | |
| 305 | + /* Does not query the OS socket */ | |
| 306 | + public synchronized int available () throws IOException { | |
| 307 | + if (closed) | |
| 308 | + throw new IOException ("Stream is closed"); | |
| 309 | + | |
| 310 | + if (eof) | |
| 311 | + return -1; | |
| 312 | + | |
| 313 | + if (reset) | |
| 314 | + return markBuf.remaining(); | |
| 315 | + | |
| 316 | + return chanbuf.remaining(); | |
| 317 | + } | |
| 318 | + | |
| 319 | + public void close () throws IOException { | |
| 320 | + if (closed) { | |
| 321 | + return; | |
| 322 | + } | |
| 323 | + channel.close (); | |
| 324 | + closed = true; | |
| 325 | + } | |
| 326 | + | |
| 327 | + public synchronized void mark (int readlimit) { | |
| 328 | + if (closed) | |
| 329 | + return; | |
| 330 | + this.readlimit = readlimit; | |
| 331 | + markBuf = ByteBuffer.allocate (readlimit); | |
| 332 | + marked = true; | |
| 333 | + reset = false; | |
| 334 | + } | |
| 335 | + | |
| 336 | + public synchronized void reset () throws IOException { | |
| 337 | + if (closed ) | |
| 338 | + return; | |
| 339 | + if (!marked) | |
| 340 | + throw new IOException ("Stream not marked"); | |
| 341 | + marked = false; | |
| 342 | + reset = true; | |
| 343 | + markBuf.flip (); | |
| 344 | + } | |
| 345 | + } | |
| 346 | + | |
| 347 | + static class WriteStream extends java.io.OutputStream { | |
| 348 | + SocketChannel channel; | |
| 349 | + ByteBuffer buf; | |
| 350 | + SelectionKey key; | |
| 351 | + boolean closed; | |
| 352 | + byte[] one; | |
| 353 | + ServerImpl server; | |
| 354 | + | |
| 355 | + public WriteStream (ServerImpl server, SocketChannel channel) throws IOException { | |
| 356 | + this.channel = channel; | |
| 357 | + this.server = server; | |
| 358 | + assert channel.isBlocking(); | |
| 359 | + closed = false; | |
| 360 | + one = new byte [1]; | |
| 361 | + buf = ByteBuffer.allocate (4096); | |
| 362 | + } | |
| 363 | + | |
| 364 | + public synchronized void write (int b) throws IOException { | |
| 365 | + one[0] = (byte)b; | |
| 366 | + write (one, 0, 1); | |
| 367 | + } | |
| 368 | + | |
| 369 | + public synchronized void write (byte[] b) throws IOException { | |
| 370 | + write (b, 0, b.length); | |
| 371 | + } | |
| 372 | + | |
| 373 | + public synchronized void write (byte[] b, int off, int len) throws IOException { | |
| 374 | + int l = len; | |
| 375 | + if (closed) | |
| 376 | + throw new IOException ("stream is closed"); | |
| 377 | + | |
| 378 | + int cap = buf.capacity(); | |
| 379 | + if (cap < len) { | |
| 380 | + int diff = len - cap; | |
| 381 | + buf = ByteBuffer.allocate (2*(cap+diff)); | |
| 382 | + } | |
| 383 | + buf.clear(); | |
| 384 | + buf.put (b, off, len); | |
| 385 | + buf.flip (); | |
| 386 | + int n; | |
| 387 | + while ((n = channel.write (buf)) < l) { | |
| 388 | + l -= n; | |
| 389 | + if (l == 0) | |
| 390 | + return; | |
| 391 | + } | |
| 392 | + } | |
| 393 | + | |
| 394 | + public void close () throws IOException { | |
| 395 | + if (closed) | |
| 396 | + return; | |
| 397 | + //server.logStackTrace ("Request.OS.close: isOpen="+channel.isOpen()); | |
| 398 | + channel.close (); | |
| 399 | + closed = true; | |
| 400 | + } | |
| 401 | + } | |
| 402 | +} | |