|
1 /* |
|
2 * Copyright (c) 2015, 2018, 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 java.net.http.internal; |
|
27 |
|
28 import java.io.IOException; |
|
29 import java.lang.System.Logger.Level; |
|
30 import java.net.URI; |
|
31 import java.nio.ByteBuffer; |
|
32 import java.util.ArrayList; |
|
33 import java.util.List; |
|
34 import java.util.Map; |
|
35 import java.net.InetSocketAddress; |
|
36 import java.util.Objects; |
|
37 import java.util.concurrent.Flow; |
|
38 import java.util.function.BiPredicate; |
|
39 import java.net.http.HttpHeaders; |
|
40 import java.net.http.HttpRequest; |
|
41 import java.net.http.internal.Http1Exchange.Http1BodySubscriber; |
|
42 import java.net.http.internal.common.HttpHeadersImpl; |
|
43 import java.net.http.internal.common.Log; |
|
44 import java.net.http.internal.common.Utils; |
|
45 |
|
46 import static java.nio.charset.StandardCharsets.US_ASCII; |
|
47 |
|
48 /** |
|
49 * An HTTP/1.1 request. |
|
50 */ |
|
51 class Http1Request { |
|
52 private final HttpRequestImpl request; |
|
53 private final Http1Exchange<?> http1Exchange; |
|
54 private final HttpConnection connection; |
|
55 private final HttpRequest.BodyPublisher requestPublisher; |
|
56 private final HttpHeaders userHeaders; |
|
57 private final HttpHeadersImpl systemHeaders; |
|
58 private volatile boolean streaming; |
|
59 private volatile long contentLength; |
|
60 |
|
61 Http1Request(HttpRequestImpl request, |
|
62 Http1Exchange<?> http1Exchange) |
|
63 throws IOException |
|
64 { |
|
65 this.request = request; |
|
66 this.http1Exchange = http1Exchange; |
|
67 this.connection = http1Exchange.connection(); |
|
68 this.requestPublisher = request.requestPublisher; // may be null |
|
69 this.userHeaders = request.getUserHeaders(); |
|
70 this.systemHeaders = request.getSystemHeaders(); |
|
71 } |
|
72 |
|
73 private void logHeaders(String completeHeaders) { |
|
74 if (Log.headers()) { |
|
75 //StringBuilder sb = new StringBuilder(256); |
|
76 //sb.append("REQUEST HEADERS:\n"); |
|
77 //Log.dumpHeaders(sb, " ", systemHeaders); |
|
78 //Log.dumpHeaders(sb, " ", userHeaders); |
|
79 //Log.logHeaders(sb.toString()); |
|
80 |
|
81 String s = completeHeaders.replaceAll("\r\n", "\n"); |
|
82 Log.logHeaders("REQUEST HEADERS:\n" + s); |
|
83 } |
|
84 } |
|
85 |
|
86 |
|
87 private void collectHeaders0(StringBuilder sb) { |
|
88 BiPredicate<String,List<String>> filter = |
|
89 connection.headerFilter(request); |
|
90 |
|
91 // If we're sending this request through a tunnel, |
|
92 // then don't send any preemptive proxy-* headers that |
|
93 // the authentication filter may have saved in its |
|
94 // cache. |
|
95 collectHeaders1(sb, systemHeaders, filter); |
|
96 |
|
97 // If we're sending this request through a tunnel, |
|
98 // don't send any user-supplied proxy-* headers |
|
99 // to the target server. |
|
100 collectHeaders1(sb, userHeaders, filter); |
|
101 sb.append("\r\n"); |
|
102 } |
|
103 |
|
104 private void collectHeaders1(StringBuilder sb, HttpHeaders headers, |
|
105 BiPredicate<String, List<String>> filter) { |
|
106 for (Map.Entry<String,List<String>> entry : headers.map().entrySet()) { |
|
107 String key = entry.getKey(); |
|
108 List<String> values = entry.getValue(); |
|
109 if (!filter.test(key, values)) continue; |
|
110 for (String value : values) { |
|
111 sb.append(key).append(": ").append(value).append("\r\n"); |
|
112 } |
|
113 } |
|
114 } |
|
115 |
|
116 private String getPathAndQuery(URI uri) { |
|
117 String path = uri.getPath(); |
|
118 String query = uri.getQuery(); |
|
119 if (path == null || path.equals("")) { |
|
120 path = "/"; |
|
121 } |
|
122 if (query == null) { |
|
123 query = ""; |
|
124 } |
|
125 if (query.equals("")) { |
|
126 return path; |
|
127 } else { |
|
128 return path + "?" + query; |
|
129 } |
|
130 } |
|
131 |
|
132 private String authorityString(InetSocketAddress addr) { |
|
133 return addr.getHostString() + ":" + addr.getPort(); |
|
134 } |
|
135 |
|
136 private String hostString() { |
|
137 URI uri = request.uri(); |
|
138 int port = uri.getPort(); |
|
139 String host = uri.getHost(); |
|
140 |
|
141 boolean defaultPort; |
|
142 if (port == -1) { |
|
143 defaultPort = true; |
|
144 } else if (request.secure()) { |
|
145 defaultPort = port == 443; |
|
146 } else { |
|
147 defaultPort = port == 80; |
|
148 } |
|
149 |
|
150 if (defaultPort) { |
|
151 return host; |
|
152 } else { |
|
153 return host + ":" + Integer.toString(port); |
|
154 } |
|
155 } |
|
156 |
|
157 private String requestURI() { |
|
158 URI uri = request.uri(); |
|
159 String method = request.method(); |
|
160 |
|
161 if ((request.proxy() == null && !method.equals("CONNECT")) |
|
162 || request.isWebSocket()) { |
|
163 return getPathAndQuery(uri); |
|
164 } |
|
165 if (request.secure()) { |
|
166 if (request.method().equals("CONNECT")) { |
|
167 // use authority for connect itself |
|
168 return authorityString(request.authority()); |
|
169 } else { |
|
170 // requests over tunnel do not require full URL |
|
171 return getPathAndQuery(uri); |
|
172 } |
|
173 } |
|
174 if (request.method().equals("CONNECT")) { |
|
175 // use authority for connect itself |
|
176 return authorityString(request.authority()); |
|
177 } |
|
178 |
|
179 return uri == null? authorityString(request.authority()) : uri.toString(); |
|
180 } |
|
181 |
|
182 private boolean finished; |
|
183 |
|
184 synchronized boolean finished() { |
|
185 return finished; |
|
186 } |
|
187 |
|
188 synchronized void setFinished() { |
|
189 finished = true; |
|
190 } |
|
191 |
|
192 List<ByteBuffer> headers() { |
|
193 if (Log.requests() && request != null) { |
|
194 Log.logRequest(request.toString()); |
|
195 } |
|
196 String uriString = requestURI(); |
|
197 StringBuilder sb = new StringBuilder(64); |
|
198 sb.append(request.method()) |
|
199 .append(' ') |
|
200 .append(uriString) |
|
201 .append(" HTTP/1.1\r\n"); |
|
202 |
|
203 URI uri = request.uri(); |
|
204 if (uri != null) { |
|
205 systemHeaders.setHeader("Host", hostString()); |
|
206 } |
|
207 if (requestPublisher == null) { |
|
208 // Not a user request, or maybe a method, e.g. GET, with no body. |
|
209 contentLength = 0; |
|
210 } else { |
|
211 contentLength = requestPublisher.contentLength(); |
|
212 } |
|
213 |
|
214 if (contentLength == 0) { |
|
215 systemHeaders.setHeader("Content-Length", "0"); |
|
216 } else if (contentLength > 0) { |
|
217 systemHeaders.setHeader("Content-Length", Long.toString(contentLength)); |
|
218 streaming = false; |
|
219 } else { |
|
220 streaming = true; |
|
221 systemHeaders.setHeader("Transfer-encoding", "chunked"); |
|
222 } |
|
223 collectHeaders0(sb); |
|
224 String hs = sb.toString(); |
|
225 logHeaders(hs); |
|
226 ByteBuffer b = ByteBuffer.wrap(hs.getBytes(US_ASCII)); |
|
227 return List.of(b); |
|
228 } |
|
229 |
|
230 Http1BodySubscriber continueRequest() { |
|
231 Http1BodySubscriber subscriber; |
|
232 if (streaming) { |
|
233 subscriber = new StreamSubscriber(); |
|
234 requestPublisher.subscribe(subscriber); |
|
235 } else { |
|
236 if (contentLength == 0) |
|
237 return null; |
|
238 |
|
239 subscriber = new FixedContentSubscriber(); |
|
240 requestPublisher.subscribe(subscriber); |
|
241 } |
|
242 return subscriber; |
|
243 } |
|
244 |
|
245 class StreamSubscriber extends Http1BodySubscriber { |
|
246 |
|
247 @Override |
|
248 public void onSubscribe(Flow.Subscription subscription) { |
|
249 if (this.subscription != null) { |
|
250 Throwable t = new IllegalStateException("already subscribed"); |
|
251 http1Exchange.appendToOutgoing(t); |
|
252 } else { |
|
253 this.subscription = subscription; |
|
254 } |
|
255 } |
|
256 |
|
257 @Override |
|
258 public void onNext(ByteBuffer item) { |
|
259 Objects.requireNonNull(item); |
|
260 if (complete) { |
|
261 Throwable t = new IllegalStateException("subscription already completed"); |
|
262 http1Exchange.appendToOutgoing(t); |
|
263 } else { |
|
264 int chunklen = item.remaining(); |
|
265 ArrayList<ByteBuffer> l = new ArrayList<>(3); |
|
266 l.add(getHeader(chunklen)); |
|
267 l.add(item); |
|
268 l.add(ByteBuffer.wrap(CRLF)); |
|
269 http1Exchange.appendToOutgoing(l); |
|
270 } |
|
271 } |
|
272 |
|
273 @Override |
|
274 public void onError(Throwable throwable) { |
|
275 if (complete) |
|
276 return; |
|
277 |
|
278 subscription.cancel(); |
|
279 http1Exchange.appendToOutgoing(throwable); |
|
280 } |
|
281 |
|
282 @Override |
|
283 public void onComplete() { |
|
284 if (complete) { |
|
285 Throwable t = new IllegalStateException("subscription already completed"); |
|
286 http1Exchange.appendToOutgoing(t); |
|
287 } else { |
|
288 ArrayList<ByteBuffer> l = new ArrayList<>(2); |
|
289 l.add(ByteBuffer.wrap(EMPTY_CHUNK_BYTES)); |
|
290 l.add(ByteBuffer.wrap(CRLF)); |
|
291 complete = true; |
|
292 //setFinished(); |
|
293 http1Exchange.appendToOutgoing(l); |
|
294 http1Exchange.appendToOutgoing(COMPLETED); |
|
295 setFinished(); // TODO: before or after,? does it matter? |
|
296 |
|
297 } |
|
298 } |
|
299 } |
|
300 |
|
301 class FixedContentSubscriber extends Http1BodySubscriber { |
|
302 |
|
303 private volatile long contentWritten; |
|
304 |
|
305 @Override |
|
306 public void onSubscribe(Flow.Subscription subscription) { |
|
307 if (this.subscription != null) { |
|
308 Throwable t = new IllegalStateException("already subscribed"); |
|
309 http1Exchange.appendToOutgoing(t); |
|
310 } else { |
|
311 this.subscription = subscription; |
|
312 } |
|
313 } |
|
314 |
|
315 @Override |
|
316 public void onNext(ByteBuffer item) { |
|
317 debug.log(Level.DEBUG, "onNext"); |
|
318 Objects.requireNonNull(item); |
|
319 if (complete) { |
|
320 Throwable t = new IllegalStateException("subscription already completed"); |
|
321 http1Exchange.appendToOutgoing(t); |
|
322 } else { |
|
323 long writing = item.remaining(); |
|
324 long written = (contentWritten += writing); |
|
325 |
|
326 if (written > contentLength) { |
|
327 subscription.cancel(); |
|
328 String msg = connection.getConnectionFlow() |
|
329 + " [" + Thread.currentThread().getName() +"] " |
|
330 + "Too many bytes in request body. Expected: " |
|
331 + contentLength + ", got: " + written; |
|
332 http1Exchange.appendToOutgoing(new IOException(msg)); |
|
333 } else { |
|
334 http1Exchange.appendToOutgoing(List.of(item)); |
|
335 } |
|
336 } |
|
337 } |
|
338 |
|
339 @Override |
|
340 public void onError(Throwable throwable) { |
|
341 debug.log(Level.DEBUG, "onError"); |
|
342 if (complete) // TODO: error? |
|
343 return; |
|
344 |
|
345 subscription.cancel(); |
|
346 http1Exchange.appendToOutgoing(throwable); |
|
347 } |
|
348 |
|
349 @Override |
|
350 public void onComplete() { |
|
351 debug.log(Level.DEBUG, "onComplete"); |
|
352 if (complete) { |
|
353 Throwable t = new IllegalStateException("subscription already completed"); |
|
354 http1Exchange.appendToOutgoing(t); |
|
355 } else { |
|
356 complete = true; |
|
357 long written = contentWritten; |
|
358 if (contentLength > written) { |
|
359 subscription.cancel(); |
|
360 Throwable t = new IOException(connection.getConnectionFlow() |
|
361 + " [" + Thread.currentThread().getName() +"] " |
|
362 + "Too few bytes returned by the publisher (" |
|
363 + written + "/" |
|
364 + contentLength + ")"); |
|
365 http1Exchange.appendToOutgoing(t); |
|
366 } else { |
|
367 http1Exchange.appendToOutgoing(COMPLETED); |
|
368 } |
|
369 } |
|
370 } |
|
371 } |
|
372 |
|
373 private static final byte[] CRLF = {'\r', '\n'}; |
|
374 private static final byte[] EMPTY_CHUNK_BYTES = {'0', '\r', '\n'}; |
|
375 |
|
376 /** Returns a header for a particular chunk size */ |
|
377 private static ByteBuffer getHeader(int size) { |
|
378 String hexStr = Integer.toHexString(size); |
|
379 byte[] hexBytes = hexStr.getBytes(US_ASCII); |
|
380 byte[] header = new byte[hexStr.length()+2]; |
|
381 System.arraycopy(hexBytes, 0, header, 0, hexBytes.length); |
|
382 header[hexBytes.length] = CRLF[0]; |
|
383 header[hexBytes.length+1] = CRLF[1]; |
|
384 return ByteBuffer.wrap(header); |
|
385 } |
|
386 |
|
387 static final boolean DEBUG = Utils.DEBUG; // Revisit: temporary dev flag. |
|
388 final System.Logger debug = Utils.getDebugLogger(this::toString, DEBUG); |
|
389 |
|
390 } |