The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.net.http; |
| 18 | |
| 19 | import java.io.EOFException; |
| 20 | import java.io.InputStream; |
| 21 | import java.io.IOException; |
| 22 | import java.util.Iterator; |
| 23 | import java.util.Map; |
| 24 | import java.util.Map.Entry; |
| 25 | import java.util.zip.GZIPInputStream; |
| 26 | |
| 27 | import org.apache.http.entity.InputStreamEntity; |
| 28 | import org.apache.http.Header; |
| 29 | import org.apache.http.HttpClientConnection; |
| 30 | import org.apache.http.HttpEntity; |
| 31 | import org.apache.http.HttpEntityEnclosingRequest; |
| 32 | import org.apache.http.HttpException; |
| 33 | import org.apache.http.HttpHost; |
| 34 | import org.apache.http.HttpRequest; |
| 35 | import org.apache.http.HttpResponse; |
| 36 | import org.apache.http.HttpStatus; |
Grace Kloba | 52e4158 | 2010-04-21 23:57:43 -0700 | [diff] [blame] | 37 | import org.apache.http.HttpVersion; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 38 | import org.apache.http.ParseException; |
| 39 | import org.apache.http.ProtocolVersion; |
| 40 | |
| 41 | import org.apache.http.StatusLine; |
| 42 | import org.apache.http.message.BasicHttpRequest; |
| 43 | import org.apache.http.message.BasicHttpEntityEnclosingRequest; |
| 44 | import org.apache.http.protocol.RequestContent; |
| 45 | |
| 46 | /** |
| 47 | * Represents an HTTP request for a given host. |
| 48 | * |
| 49 | * {@hide} |
| 50 | */ |
| 51 | |
| 52 | class Request { |
| 53 | |
| 54 | /** The eventhandler to call as the request progresses */ |
| 55 | EventHandler mEventHandler; |
| 56 | |
| 57 | private Connection mConnection; |
| 58 | |
| 59 | /** The Apache http request */ |
| 60 | BasicHttpRequest mHttpRequest; |
| 61 | |
| 62 | /** The path component of this request */ |
| 63 | String mPath; |
| 64 | |
| 65 | /** Host serving this request */ |
| 66 | HttpHost mHost; |
| 67 | |
| 68 | /** Set if I'm using a proxy server */ |
| 69 | HttpHost mProxyHost; |
| 70 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 71 | /** True if request has been cancelled */ |
| 72 | volatile boolean mCancelled = false; |
| 73 | |
| 74 | int mFailCount = 0; |
| 75 | |
Grace Kloba | 52e4158 | 2010-04-21 23:57:43 -0700 | [diff] [blame] | 76 | // This will be used to set the Range field if we retry a connection. This |
| 77 | // is http/1.1 feature. |
| 78 | private int mReceivedBytes = 0; |
| 79 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 80 | private InputStream mBodyProvider; |
| 81 | private int mBodyLength; |
| 82 | |
| 83 | private final static String HOST_HEADER = "Host"; |
| 84 | private final static String ACCEPT_ENCODING_HEADER = "Accept-Encoding"; |
| 85 | private final static String CONTENT_LENGTH_HEADER = "content-length"; |
| 86 | |
| 87 | /* Used to synchronize waitUntilComplete() requests */ |
| 88 | private final Object mClientResource = new Object(); |
| 89 | |
Ben Murdoch | 5b494c1 | 2010-03-12 20:45:32 +0000 | [diff] [blame] | 90 | /** True if loading should be paused **/ |
| 91 | private boolean mLoadingPaused = false; |
| 92 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 93 | /** |
| 94 | * Processor used to set content-length and transfer-encoding |
| 95 | * headers. |
| 96 | */ |
| 97 | private static RequestContent requestContentProcessor = |
| 98 | new RequestContent(); |
| 99 | |
| 100 | /** |
| 101 | * Instantiates a new Request. |
| 102 | * @param method GET/POST/PUT |
| 103 | * @param host The server that will handle this request |
| 104 | * @param path path part of URI |
| 105 | * @param bodyProvider InputStream providing HTTP body, null if none |
| 106 | * @param bodyLength length of body, must be 0 if bodyProvider is null |
| 107 | * @param eventHandler request will make progress callbacks on |
| 108 | * this interface |
| 109 | * @param headers reqeust headers |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 110 | */ |
| 111 | Request(String method, HttpHost host, HttpHost proxyHost, String path, |
| 112 | InputStream bodyProvider, int bodyLength, |
| 113 | EventHandler eventHandler, |
Patrick Scott | fe4fec7 | 2009-07-14 15:54:30 -0400 | [diff] [blame] | 114 | Map<String, String> headers) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 115 | mEventHandler = eventHandler; |
| 116 | mHost = host; |
| 117 | mProxyHost = proxyHost; |
| 118 | mPath = path; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 119 | mBodyProvider = bodyProvider; |
| 120 | mBodyLength = bodyLength; |
| 121 | |
Grace Kloba | 45efe69 | 2009-05-08 19:21:55 -0700 | [diff] [blame] | 122 | if (bodyProvider == null && !"POST".equalsIgnoreCase(method)) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 123 | mHttpRequest = new BasicHttpRequest(method, getUri()); |
| 124 | } else { |
| 125 | mHttpRequest = new BasicHttpEntityEnclosingRequest( |
| 126 | method, getUri()); |
Grace Kloba | 45efe69 | 2009-05-08 19:21:55 -0700 | [diff] [blame] | 127 | // it is ok to have null entity for BasicHttpEntityEnclosingRequest. |
| 128 | // By using BasicHttpEntityEnclosingRequest, it will set up the |
| 129 | // correct content-length, content-type and content-encoding. |
| 130 | if (bodyProvider != null) { |
| 131 | setBodyProvider(bodyProvider, bodyLength); |
| 132 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 133 | } |
| 134 | addHeader(HOST_HEADER, getHostPort()); |
| 135 | |
| 136 | /* FIXME: if webcore will make the root document a |
| 137 | high-priority request, we can ask for gzip encoding only on |
| 138 | high priority reqs (saving the trouble for images, etc) */ |
| 139 | addHeader(ACCEPT_ENCODING_HEADER, "gzip"); |
| 140 | addHeaders(headers); |
| 141 | } |
| 142 | |
| 143 | /** |
Ben Murdoch | 5b494c1 | 2010-03-12 20:45:32 +0000 | [diff] [blame] | 144 | * @param pause True if the load should be paused. |
| 145 | */ |
| 146 | synchronized void setLoadingPaused(boolean pause) { |
| 147 | mLoadingPaused = pause; |
| 148 | |
| 149 | // Wake up the paused thread if we're unpausing the load. |
| 150 | if (!mLoadingPaused) { |
| 151 | notify(); |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 156 | * @param connection Request served by this connection |
| 157 | */ |
| 158 | void setConnection(Connection connection) { |
| 159 | mConnection = connection; |
| 160 | } |
| 161 | |
| 162 | /* package */ EventHandler getEventHandler() { |
| 163 | return mEventHandler; |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Add header represented by given pair to request. Header will |
| 168 | * be formatted in request as "name: value\r\n". |
| 169 | * @param name of header |
| 170 | * @param value of header |
| 171 | */ |
| 172 | void addHeader(String name, String value) { |
| 173 | if (name == null) { |
| 174 | String damage = "Null http header name"; |
| 175 | HttpLog.e(damage); |
| 176 | throw new NullPointerException(damage); |
| 177 | } |
| 178 | if (value == null || value.length() == 0) { |
| 179 | String damage = "Null or empty value for header \"" + name + "\""; |
| 180 | HttpLog.e(damage); |
| 181 | throw new RuntimeException(damage); |
| 182 | } |
| 183 | mHttpRequest.addHeader(name, value); |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * Add all headers in given map to this request. This is a helper |
| 188 | * method: it calls addHeader for each pair in the map. |
| 189 | */ |
| 190 | void addHeaders(Map<String, String> headers) { |
| 191 | if (headers == null) { |
| 192 | return; |
| 193 | } |
| 194 | |
| 195 | Entry<String, String> entry; |
| 196 | Iterator<Entry<String, String>> i = headers.entrySet().iterator(); |
| 197 | while (i.hasNext()) { |
| 198 | entry = i.next(); |
| 199 | addHeader(entry.getKey(), entry.getValue()); |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | /** |
| 204 | * Send the request line and headers |
| 205 | */ |
| 206 | void sendRequest(AndroidHttpClientConnection httpClientConnection) |
| 207 | throws HttpException, IOException { |
| 208 | |
| 209 | if (mCancelled) return; // don't send cancelled requests |
| 210 | |
| 211 | if (HttpLog.LOGV) { |
| 212 | HttpLog.v("Request.sendRequest() " + mHost.getSchemeName() + "://" + getHostPort()); |
| 213 | // HttpLog.v(mHttpRequest.getRequestLine().toString()); |
| 214 | if (false) { |
| 215 | Iterator i = mHttpRequest.headerIterator(); |
| 216 | while (i.hasNext()) { |
| 217 | Header header = (Header)i.next(); |
| 218 | HttpLog.v(header.getName() + ": " + header.getValue()); |
| 219 | } |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | requestContentProcessor.process(mHttpRequest, |
| 224 | mConnection.getHttpContext()); |
| 225 | httpClientConnection.sendRequestHeader(mHttpRequest); |
| 226 | if (mHttpRequest instanceof HttpEntityEnclosingRequest) { |
| 227 | httpClientConnection.sendRequestEntity( |
| 228 | (HttpEntityEnclosingRequest) mHttpRequest); |
| 229 | } |
| 230 | |
| 231 | if (HttpLog.LOGV) { |
| 232 | HttpLog.v("Request.requestSent() " + mHost.getSchemeName() + "://" + getHostPort() + mPath); |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | |
| 237 | /** |
| 238 | * Receive a single http response. |
| 239 | * |
| 240 | * @param httpClientConnection the request to receive the response for. |
| 241 | */ |
| 242 | void readResponse(AndroidHttpClientConnection httpClientConnection) |
| 243 | throws IOException, ParseException { |
| 244 | |
| 245 | if (mCancelled) return; // don't send cancelled requests |
| 246 | |
| 247 | StatusLine statusLine = null; |
| 248 | boolean hasBody = false; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 249 | httpClientConnection.flush(); |
| 250 | int statusCode = 0; |
| 251 | |
| 252 | Headers header = new Headers(); |
| 253 | do { |
| 254 | statusLine = httpClientConnection.parseResponseHeader(header); |
| 255 | statusCode = statusLine.getStatusCode(); |
| 256 | } while (statusCode < HttpStatus.SC_OK); |
| 257 | if (HttpLog.LOGV) HttpLog.v( |
| 258 | "Request.readResponseStatus() " + |
| 259 | statusLine.toString().length() + " " + statusLine); |
| 260 | |
| 261 | ProtocolVersion v = statusLine.getProtocolVersion(); |
| 262 | mEventHandler.status(v.getMajor(), v.getMinor(), |
| 263 | statusCode, statusLine.getReasonPhrase()); |
| 264 | mEventHandler.headers(header); |
| 265 | HttpEntity entity = null; |
| 266 | hasBody = canResponseHaveBody(mHttpRequest, statusCode); |
| 267 | |
| 268 | if (hasBody) |
| 269 | entity = httpClientConnection.receiveResponseEntity(header); |
| 270 | |
Grace Kloba | 6ead8f6 | 2010-04-23 15:57:58 -0700 | [diff] [blame] | 271 | // restrict the range request to the servers claiming that they are |
| 272 | // accepting ranges in bytes |
| 273 | boolean supportPartialContent = "bytes".equalsIgnoreCase(header |
| 274 | .getAcceptRanges()); |
Grace Kloba | 52e4158 | 2010-04-21 23:57:43 -0700 | [diff] [blame] | 275 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 276 | if (entity != null) { |
| 277 | InputStream is = entity.getContent(); |
| 278 | |
| 279 | // process gzip content encoding |
| 280 | Header contentEncoding = entity.getContentEncoding(); |
| 281 | InputStream nis = null; |
Grace Kloba | 7cd64bd | 2009-06-09 16:42:45 -0700 | [diff] [blame] | 282 | byte[] buf = null; |
| 283 | int count = 0; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 284 | try { |
| 285 | if (contentEncoding != null && |
| 286 | contentEncoding.getValue().equals("gzip")) { |
| 287 | nis = new GZIPInputStream(is); |
| 288 | } else { |
| 289 | nis = is; |
| 290 | } |
| 291 | |
| 292 | /* accumulate enough data to make it worth pushing it |
| 293 | * up the stack */ |
Grace Kloba | 7cd64bd | 2009-06-09 16:42:45 -0700 | [diff] [blame] | 294 | buf = mConnection.getBuf(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 295 | int len = 0; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 296 | int lowWater = buf.length / 2; |
| 297 | while (len != -1) { |
Ben Murdoch | 5b494c1 | 2010-03-12 20:45:32 +0000 | [diff] [blame] | 298 | synchronized(this) { |
| 299 | while (mLoadingPaused) { |
| 300 | // Put this (network loading) thread to sleep if WebCore |
| 301 | // has asked us to. This can happen with plugins for |
| 302 | // example, if we are streaming data but the plugin has |
| 303 | // filled its internal buffers. |
| 304 | try { |
| 305 | wait(); |
| 306 | } catch (InterruptedException e) { |
| 307 | HttpLog.e("Interrupted exception whilst " |
| 308 | + "network thread paused at WebCore's request." |
| 309 | + " " + e.getMessage()); |
| 310 | } |
| 311 | } |
| 312 | } |
| 313 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 314 | len = nis.read(buf, count, buf.length - count); |
Ben Murdoch | 5b494c1 | 2010-03-12 20:45:32 +0000 | [diff] [blame] | 315 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 316 | if (len != -1) { |
| 317 | count += len; |
Grace Kloba | 52e4158 | 2010-04-21 23:57:43 -0700 | [diff] [blame] | 318 | if (supportPartialContent) mReceivedBytes += len; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 319 | } |
| 320 | if (len == -1 || count >= lowWater) { |
| 321 | if (HttpLog.LOGV) HttpLog.v("Request.readResponse() " + count); |
| 322 | mEventHandler.data(buf, count); |
| 323 | count = 0; |
| 324 | } |
| 325 | } |
| 326 | } catch (EOFException e) { |
| 327 | /* InflaterInputStream throws an EOFException when the |
| 328 | server truncates gzipped content. Handle this case |
| 329 | as we do truncated non-gzipped content: no error */ |
Grace Kloba | 7cd64bd | 2009-06-09 16:42:45 -0700 | [diff] [blame] | 330 | if (count > 0) { |
| 331 | // if there is uncommited content, we should commit them |
| 332 | mEventHandler.data(buf, count); |
| 333 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 334 | if (HttpLog.LOGV) HttpLog.v( "readResponse() handling " + e); |
| 335 | } catch(IOException e) { |
| 336 | // don't throw if we have a non-OK status code |
Grace Kloba | 52e4158 | 2010-04-21 23:57:43 -0700 | [diff] [blame] | 337 | if (statusCode == HttpStatus.SC_OK |
| 338 | || statusCode == HttpStatus.SC_PARTIAL_CONTENT) { |
| 339 | if (supportPartialContent && count > 0) { |
| 340 | // if there is uncommited content, we should commit them |
| 341 | // as we will continue the request |
| 342 | mEventHandler.data(buf, count); |
| 343 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 344 | throw e; |
| 345 | } |
| 346 | } finally { |
| 347 | if (nis != null) { |
| 348 | nis.close(); |
| 349 | } |
| 350 | } |
| 351 | } |
| 352 | mConnection.setCanPersist(entity, statusLine.getProtocolVersion(), |
| 353 | header.getConnectionType()); |
| 354 | mEventHandler.endData(); |
| 355 | complete(); |
| 356 | |
| 357 | if (HttpLog.LOGV) HttpLog.v("Request.readResponse(): done " + |
| 358 | mHost.getSchemeName() + "://" + getHostPort() + mPath); |
| 359 | } |
| 360 | |
| 361 | /** |
| 362 | * Data will not be sent to or received from server after cancel() |
| 363 | * call. Does not close connection--use close() below for that. |
| 364 | * |
| 365 | * Called by RequestHandle from non-network thread |
| 366 | */ |
Ben Murdoch | 5b494c1 | 2010-03-12 20:45:32 +0000 | [diff] [blame] | 367 | synchronized void cancel() { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 368 | if (HttpLog.LOGV) { |
| 369 | HttpLog.v("Request.cancel(): " + getUri()); |
| 370 | } |
Ben Murdoch | 5b494c1 | 2010-03-12 20:45:32 +0000 | [diff] [blame] | 371 | |
| 372 | // Ensure that the network thread is not blocked by a hanging request from WebCore to |
| 373 | // pause the load. |
| 374 | mLoadingPaused = false; |
| 375 | notify(); |
| 376 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 377 | mCancelled = true; |
| 378 | if (mConnection != null) { |
| 379 | mConnection.cancel(); |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | String getHostPort() { |
| 384 | String myScheme = mHost.getSchemeName(); |
| 385 | int myPort = mHost.getPort(); |
| 386 | |
| 387 | // Only send port when we must... many servers can't deal with it |
| 388 | if (myPort != 80 && myScheme.equals("http") || |
| 389 | myPort != 443 && myScheme.equals("https")) { |
| 390 | return mHost.toHostString(); |
| 391 | } else { |
| 392 | return mHost.getHostName(); |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | String getUri() { |
| 397 | if (mProxyHost == null || |
| 398 | mHost.getSchemeName().equals("https")) { |
| 399 | return mPath; |
| 400 | } |
| 401 | return mHost.getSchemeName() + "://" + getHostPort() + mPath; |
| 402 | } |
| 403 | |
| 404 | /** |
| 405 | * for debugging |
| 406 | */ |
| 407 | public String toString() { |
Patrick Scott | fe4fec7 | 2009-07-14 15:54:30 -0400 | [diff] [blame] | 408 | return mPath; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 409 | } |
| 410 | |
| 411 | |
| 412 | /** |
| 413 | * If this request has been sent once and failed, it must be reset |
| 414 | * before it can be sent again. |
| 415 | */ |
| 416 | void reset() { |
| 417 | /* clear content-length header */ |
| 418 | mHttpRequest.removeHeaders(CONTENT_LENGTH_HEADER); |
| 419 | |
| 420 | if (mBodyProvider != null) { |
| 421 | try { |
| 422 | mBodyProvider.reset(); |
| 423 | } catch (IOException ex) { |
| 424 | if (HttpLog.LOGV) HttpLog.v( |
| 425 | "failed to reset body provider " + |
| 426 | getUri()); |
| 427 | } |
| 428 | setBodyProvider(mBodyProvider, mBodyLength); |
| 429 | } |
Grace Kloba | 52e4158 | 2010-04-21 23:57:43 -0700 | [diff] [blame] | 430 | |
| 431 | if (mReceivedBytes > 0) { |
| 432 | // reset the fail count as we continue the request |
| 433 | mFailCount = 0; |
| 434 | // set the "Range" header to indicate that the retry will continue |
| 435 | // instead of restarting the request |
| 436 | HttpLog.v("*** Request.reset() to range:" + mReceivedBytes); |
| 437 | mHttpRequest.setHeader("Range", "bytes=" + mReceivedBytes + "-"); |
| 438 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 439 | } |
| 440 | |
| 441 | /** |
| 442 | * Pause thread request completes. Used for synchronous requests, |
| 443 | * and testing |
| 444 | */ |
| 445 | void waitUntilComplete() { |
| 446 | synchronized (mClientResource) { |
| 447 | try { |
| 448 | if (HttpLog.LOGV) HttpLog.v("Request.waitUntilComplete()"); |
| 449 | mClientResource.wait(); |
| 450 | if (HttpLog.LOGV) HttpLog.v("Request.waitUntilComplete() done waiting"); |
| 451 | } catch (InterruptedException e) { |
| 452 | } |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | void complete() { |
| 457 | synchronized (mClientResource) { |
| 458 | mClientResource.notifyAll(); |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | /** |
| 463 | * Decide whether a response comes with an entity. |
| 464 | * The implementation in this class is based on RFC 2616. |
| 465 | * Unknown methods and response codes are supposed to |
| 466 | * indicate responses with an entity. |
| 467 | * <br/> |
| 468 | * Derived executors can override this method to handle |
| 469 | * methods and response codes not specified in RFC 2616. |
| 470 | * |
| 471 | * @param request the request, to obtain the executed method |
| 472 | * @param response the response, to obtain the status code |
| 473 | */ |
| 474 | |
| 475 | private static boolean canResponseHaveBody(final HttpRequest request, |
| 476 | final int status) { |
| 477 | |
| 478 | if ("HEAD".equalsIgnoreCase(request.getRequestLine().getMethod())) { |
| 479 | return false; |
| 480 | } |
| 481 | return status >= HttpStatus.SC_OK |
| 482 | && status != HttpStatus.SC_NO_CONTENT |
Patrick Scott | c319c69 | 2009-07-20 15:38:17 -0400 | [diff] [blame] | 483 | && status != HttpStatus.SC_NOT_MODIFIED; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | /** |
| 487 | * Supply an InputStream that provides the body of a request. It's |
| 488 | * not great that the caller must also provide the length of the data |
| 489 | * returned by that InputStream, but the client needs to know up |
| 490 | * front, and I'm not sure how to get this out of the InputStream |
| 491 | * itself without a costly readthrough. I'm not sure skip() would |
| 492 | * do what we want. If you know a better way, please let me know. |
| 493 | */ |
| 494 | private void setBodyProvider(InputStream bodyProvider, int bodyLength) { |
| 495 | if (!bodyProvider.markSupported()) { |
| 496 | throw new IllegalArgumentException( |
| 497 | "bodyProvider must support mark()"); |
| 498 | } |
| 499 | // Mark beginning of stream |
| 500 | bodyProvider.mark(Integer.MAX_VALUE); |
| 501 | |
| 502 | ((BasicHttpEntityEnclosingRequest)mHttpRequest).setEntity( |
| 503 | new InputStreamEntity(bodyProvider, bodyLength)); |
| 504 | } |
| 505 | |
| 506 | |
| 507 | /** |
| 508 | * Handles SSL error(s) on the way down from the user (the user |
| 509 | * has already provided their feedback). |
| 510 | */ |
| 511 | public void handleSslErrorResponse(boolean proceed) { |
| 512 | HttpsConnection connection = (HttpsConnection)(mConnection); |
| 513 | if (connection != null) { |
| 514 | connection.restartConnection(proceed); |
| 515 | } |
| 516 | } |
| 517 | |
| 518 | /** |
| 519 | * Helper: calls error() on eventhandler with appropriate message |
| 520 | * This should not be called before the mConnection is set. |
| 521 | */ |
| 522 | void error(int errorId, int resourceId) { |
| 523 | mEventHandler.error( |
| 524 | errorId, |
| 525 | mConnection.mContext.getText( |
| 526 | resourceId).toString()); |
| 527 | } |
| 528 | |
| 529 | } |