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19 package org.eclipse.aether.transport.apache;
20
21 import java.io.IOException;
22 import java.io.InputStream;
23 import java.io.InterruptedIOException;
24 import java.io.OutputStream;
25 import java.io.UncheckedIOException;
26 import java.net.InetAddress;
27 import java.net.URI;
28 import java.net.URISyntaxException;
29 import java.net.UnknownHostException;
30 import java.nio.charset.Charset;
31 import java.nio.file.Files;
32 import java.nio.file.Path;
33 import java.nio.file.StandardCopyOption;
34 import java.util.Collections;
35 import java.util.Date;
36 import java.util.HashSet;
37 import java.util.List;
38 import java.util.Map;
39 import java.util.Set;
40 import java.util.function.Function;
41 import java.util.regex.Matcher;
42
43 import org.apache.http.Header;
44 import org.apache.http.HttpEntity;
45 import org.apache.http.HttpEntityEnclosingRequest;
46 import org.apache.http.HttpHeaders;
47 import org.apache.http.HttpHost;
48 import org.apache.http.HttpResponse;
49 import org.apache.http.HttpStatus;
50 import org.apache.http.auth.AuthSchemeProvider;
51 import org.apache.http.auth.AuthScope;
52 import org.apache.http.client.CredentialsProvider;
53 import org.apache.http.client.HttpRequestRetryHandler;
54 import org.apache.http.client.HttpResponseException;
55 import org.apache.http.client.ServiceUnavailableRetryStrategy;
56 import org.apache.http.client.config.AuthSchemes;
57 import org.apache.http.client.config.CookieSpecs;
58 import org.apache.http.client.config.RequestConfig;
59 import org.apache.http.client.methods.CloseableHttpResponse;
60 import org.apache.http.client.methods.HttpGet;
61 import org.apache.http.client.methods.HttpHead;
62 import org.apache.http.client.methods.HttpOptions;
63 import org.apache.http.client.methods.HttpPut;
64 import org.apache.http.client.methods.HttpUriRequest;
65 import org.apache.http.client.utils.DateUtils;
66 import org.apache.http.client.utils.URIUtils;
67 import org.apache.http.config.Registry;
68 import org.apache.http.config.RegistryBuilder;
69 import org.apache.http.config.SocketConfig;
70 import org.apache.http.entity.AbstractHttpEntity;
71 import org.apache.http.entity.ByteArrayEntity;
72 import org.apache.http.impl.NoConnectionReuseStrategy;
73 import org.apache.http.impl.auth.BasicScheme;
74 import org.apache.http.impl.auth.BasicSchemeFactory;
75 import org.apache.http.impl.auth.DigestSchemeFactory;
76 import org.apache.http.impl.auth.KerberosSchemeFactory;
77 import org.apache.http.impl.auth.NTLMSchemeFactory;
78 import org.apache.http.impl.auth.SPNegoSchemeFactory;
79 import org.apache.http.impl.client.CloseableHttpClient;
80 import org.apache.http.impl.client.DefaultHttpRequestRetryHandler;
81 import org.apache.http.impl.client.HttpClientBuilder;
82 import org.apache.http.impl.client.LaxRedirectStrategy;
83 import org.apache.http.impl.client.StandardHttpRequestRetryHandler;
84 import org.apache.http.protocol.HttpContext;
85 import org.apache.http.util.EntityUtils;
86 import org.eclipse.aether.ConfigurationProperties;
87 import org.eclipse.aether.RepositorySystemSession;
88 import org.eclipse.aether.repository.AuthenticationContext;
89 import org.eclipse.aether.repository.Proxy;
90 import org.eclipse.aether.repository.RemoteRepository;
91 import org.eclipse.aether.spi.connector.transport.AbstractTransporter;
92 import org.eclipse.aether.spi.connector.transport.GetTask;
93 import org.eclipse.aether.spi.connector.transport.PeekTask;
94 import org.eclipse.aether.spi.connector.transport.PutTask;
95 import org.eclipse.aether.spi.connector.transport.TransportTask;
96 import org.eclipse.aether.spi.connector.transport.http.ChecksumExtractor;
97 import org.eclipse.aether.spi.connector.transport.http.HttpTransporter;
98 import org.eclipse.aether.spi.connector.transport.http.HttpTransporterException;
99 import org.eclipse.aether.spi.io.PathProcessor;
100 import org.eclipse.aether.transfer.NoTransporterException;
101 import org.eclipse.aether.transfer.TransferCancelledException;
102 import org.eclipse.aether.util.ConfigUtils;
103 import org.slf4j.Logger;
104 import org.slf4j.LoggerFactory;
105
106 import static java.util.Objects.requireNonNull;
107 import static org.eclipse.aether.spi.connector.transport.http.HttpConstants.CONTENT_RANGE_PATTERN;
108 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.CONFIG_PROP_FOLLOW_REDIRECTS;
109 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.CONFIG_PROP_HTTP_RETRY_HANDLER_NAME;
110 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.CONFIG_PROP_HTTP_RETRY_HANDLER_REQUEST_SENT_ENABLED;
111 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.CONFIG_PROP_MAX_REDIRECTS;
112 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.CONFIG_PROP_USE_SYSTEM_PROPERTIES;
113 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.DEFAULT_FOLLOW_REDIRECTS;
114 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.DEFAULT_HTTP_RETRY_HANDLER_REQUEST_SENT_ENABLED;
115 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.DEFAULT_MAX_REDIRECTS;
116 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.DEFAULT_USE_SYSTEM_PROPERTIES;
117 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.HTTP_RETRY_HANDLER_NAME_DEFAULT;
118 import static org.eclipse.aether.transport.apache.ApacheTransporterConfigurationKeys.HTTP_RETRY_HANDLER_NAME_STANDARD;
119
120
121
122
123 final class ApacheTransporter extends AbstractTransporter implements HttpTransporter {
124 private static final Logger LOGGER = LoggerFactory.getLogger(ApacheTransporter.class);
125
126 private final ChecksumExtractor checksumExtractor;
127
128 private final PathProcessor pathProcessor;
129
130 private final AuthenticationContext repoAuthContext;
131
132 private final AuthenticationContext proxyAuthContext;
133
134 private final URI baseUri;
135
136 private final HttpHost server;
137
138 private final HttpHost proxy;
139
140 private final CloseableHttpClient client;
141
142 private final Map<?, ?> headers;
143
144 private final LocalState state;
145
146 private final boolean preemptiveAuth;
147
148 private final boolean preemptivePutAuth;
149
150 private final boolean supportWebDav;
151
152 @SuppressWarnings("checkstyle:methodlength")
153 ApacheTransporter(
154 RemoteRepository repository,
155 RepositorySystemSession session,
156 ChecksumExtractor checksumExtractor,
157 PathProcessor pathProcessor)
158 throws NoTransporterException {
159 this.checksumExtractor = checksumExtractor;
160 this.pathProcessor = pathProcessor;
161 try {
162 this.baseUri = new URI(repository.getUrl()).parseServerAuthority();
163 if (baseUri.isOpaque()) {
164 throw new URISyntaxException(repository.getUrl(), "URL must not be opaque");
165 }
166 this.server = URIUtils.extractHost(baseUri);
167 if (server == null) {
168 throw new URISyntaxException(repository.getUrl(), "URL lacks host name");
169 }
170 } catch (URISyntaxException e) {
171 throw new NoTransporterException(repository, e.getMessage(), e);
172 }
173 this.proxy = toHost(repository.getProxy());
174
175 this.repoAuthContext = AuthenticationContext.forRepository(session, repository);
176 this.proxyAuthContext = AuthenticationContext.forProxy(session, repository);
177
178 String httpsSecurityMode = ConfigUtils.getString(
179 session,
180 ConfigurationProperties.HTTPS_SECURITY_MODE_DEFAULT,
181 ConfigurationProperties.HTTPS_SECURITY_MODE + "." + repository.getId(),
182 ConfigurationProperties.HTTPS_SECURITY_MODE);
183 final int connectionMaxTtlSeconds = ConfigUtils.getInteger(
184 session,
185 ConfigurationProperties.DEFAULT_HTTP_CONNECTION_MAX_TTL,
186 ConfigurationProperties.HTTP_CONNECTION_MAX_TTL + "." + repository.getId(),
187 ConfigurationProperties.HTTP_CONNECTION_MAX_TTL);
188 final int maxConnectionsPerRoute = ConfigUtils.getInteger(
189 session,
190 ConfigurationProperties.DEFAULT_HTTP_MAX_CONNECTIONS_PER_ROUTE,
191 ConfigurationProperties.HTTP_MAX_CONNECTIONS_PER_ROUTE + "." + repository.getId(),
192 ConfigurationProperties.HTTP_MAX_CONNECTIONS_PER_ROUTE);
193 this.state = new LocalState(
194 session,
195 repository,
196 new ConnMgrConfig(
197 session, repoAuthContext, httpsSecurityMode, connectionMaxTtlSeconds, maxConnectionsPerRoute));
198
199 this.headers = ConfigUtils.getMap(
200 session,
201 Collections.emptyMap(),
202 ConfigurationProperties.HTTP_HEADERS + "." + repository.getId(),
203 ConfigurationProperties.HTTP_HEADERS);
204
205 this.preemptiveAuth = ConfigUtils.getBoolean(
206 session,
207 ConfigurationProperties.DEFAULT_HTTP_PREEMPTIVE_AUTH,
208 ConfigurationProperties.HTTP_PREEMPTIVE_AUTH + "." + repository.getId(),
209 ConfigurationProperties.HTTP_PREEMPTIVE_AUTH);
210 this.preemptivePutAuth = ConfigUtils.getBoolean(
211 session,
212 ConfigurationProperties.DEFAULT_HTTP_PREEMPTIVE_PUT_AUTH,
213 ConfigurationProperties.HTTP_PREEMPTIVE_PUT_AUTH + "." + repository.getId(),
214 ConfigurationProperties.HTTP_PREEMPTIVE_PUT_AUTH);
215 this.supportWebDav = ConfigUtils.getBoolean(
216 session,
217 ConfigurationProperties.DEFAULT_HTTP_SUPPORT_WEBDAV,
218 ConfigurationProperties.HTTP_SUPPORT_WEBDAV + "." + repository.getId(),
219 ConfigurationProperties.HTTP_SUPPORT_WEBDAV);
220 String credentialEncoding = ConfigUtils.getString(
221 session,
222 ConfigurationProperties.DEFAULT_HTTP_CREDENTIAL_ENCODING,
223 ConfigurationProperties.HTTP_CREDENTIAL_ENCODING + "." + repository.getId(),
224 ConfigurationProperties.HTTP_CREDENTIAL_ENCODING);
225 int connectTimeout = ConfigUtils.getInteger(
226 session,
227 ConfigurationProperties.DEFAULT_CONNECT_TIMEOUT,
228 ConfigurationProperties.CONNECT_TIMEOUT + "." + repository.getId(),
229 ConfigurationProperties.CONNECT_TIMEOUT);
230 int requestTimeout = ConfigUtils.getInteger(
231 session,
232 ConfigurationProperties.DEFAULT_REQUEST_TIMEOUT,
233 ConfigurationProperties.REQUEST_TIMEOUT + "." + repository.getId(),
234 ConfigurationProperties.REQUEST_TIMEOUT);
235 int retryCount = ConfigUtils.getInteger(
236 session,
237 ConfigurationProperties.DEFAULT_HTTP_RETRY_HANDLER_COUNT,
238 ConfigurationProperties.HTTP_RETRY_HANDLER_COUNT + "." + repository.getId(),
239 ConfigurationProperties.HTTP_RETRY_HANDLER_COUNT);
240 long retryInterval = ConfigUtils.getLong(
241 session,
242 ConfigurationProperties.DEFAULT_HTTP_RETRY_HANDLER_INTERVAL,
243 ConfigurationProperties.HTTP_RETRY_HANDLER_INTERVAL + "." + repository.getId(),
244 ConfigurationProperties.HTTP_RETRY_HANDLER_INTERVAL);
245 long retryIntervalMax = ConfigUtils.getLong(
246 session,
247 ConfigurationProperties.DEFAULT_HTTP_RETRY_HANDLER_INTERVAL_MAX,
248 ConfigurationProperties.HTTP_RETRY_HANDLER_INTERVAL_MAX + "." + repository.getId(),
249 ConfigurationProperties.HTTP_RETRY_HANDLER_INTERVAL_MAX);
250 String serviceUnavailableCodesString = ConfigUtils.getString(
251 session,
252 ConfigurationProperties.DEFAULT_HTTP_RETRY_HANDLER_SERVICE_UNAVAILABLE,
253 ConfigurationProperties.HTTP_RETRY_HANDLER_SERVICE_UNAVAILABLE + "." + repository.getId(),
254 ConfigurationProperties.HTTP_RETRY_HANDLER_SERVICE_UNAVAILABLE);
255 String retryHandlerName = ConfigUtils.getString(
256 session,
257 HTTP_RETRY_HANDLER_NAME_STANDARD,
258 CONFIG_PROP_HTTP_RETRY_HANDLER_NAME + "." + repository.getId(),
259 CONFIG_PROP_HTTP_RETRY_HANDLER_NAME);
260 boolean retryHandlerRequestSentEnabled = ConfigUtils.getBoolean(
261 session,
262 DEFAULT_HTTP_RETRY_HANDLER_REQUEST_SENT_ENABLED,
263 CONFIG_PROP_HTTP_RETRY_HANDLER_REQUEST_SENT_ENABLED + "." + repository.getId(),
264 CONFIG_PROP_HTTP_RETRY_HANDLER_REQUEST_SENT_ENABLED);
265 int maxRedirects = ConfigUtils.getInteger(
266 session,
267 DEFAULT_MAX_REDIRECTS,
268 CONFIG_PROP_MAX_REDIRECTS + "." + repository.getId(),
269 CONFIG_PROP_MAX_REDIRECTS);
270 boolean followRedirects = ConfigUtils.getBoolean(
271 session,
272 DEFAULT_FOLLOW_REDIRECTS,
273 CONFIG_PROP_FOLLOW_REDIRECTS + "." + repository.getId(),
274 CONFIG_PROP_FOLLOW_REDIRECTS);
275 String userAgent = ConfigUtils.getString(
276 session, ConfigurationProperties.DEFAULT_USER_AGENT, ConfigurationProperties.USER_AGENT);
277
278 Charset credentialsCharset = Charset.forName(credentialEncoding);
279 Registry<AuthSchemeProvider> authSchemeRegistry = RegistryBuilder.<AuthSchemeProvider>create()
280 .register(AuthSchemes.BASIC, new BasicSchemeFactory(credentialsCharset))
281 .register(AuthSchemes.DIGEST, new DigestSchemeFactory(credentialsCharset))
282 .register(AuthSchemes.NTLM, new NTLMSchemeFactory())
283 .register(AuthSchemes.SPNEGO, new SPNegoSchemeFactory())
284 .register(AuthSchemes.KERBEROS, new KerberosSchemeFactory())
285 .build();
286 SocketConfig socketConfig =
287
288 SocketConfig.custom().setSoTimeout(requestTimeout).build();
289 RequestConfig requestConfig = RequestConfig.custom()
290 .setMaxRedirects(maxRedirects)
291 .setRedirectsEnabled(followRedirects)
292 .setRelativeRedirectsAllowed(followRedirects)
293
294 .setSocketTimeout(requestTimeout)
295
296 .setConnectTimeout(connectTimeout)
297
298 .setConnectionRequestTimeout(connectTimeout)
299 .setLocalAddress(getHttpLocalAddress(session, repository))
300 .setCookieSpec(CookieSpecs.STANDARD)
301 .build();
302
303 HttpRequestRetryHandler retryHandler;
304 if (HTTP_RETRY_HANDLER_NAME_STANDARD.equals(retryHandlerName)) {
305 retryHandler = new StandardHttpRequestRetryHandler(retryCount, retryHandlerRequestSentEnabled);
306 } else if (HTTP_RETRY_HANDLER_NAME_DEFAULT.equals(retryHandlerName)) {
307 retryHandler = new DefaultHttpRequestRetryHandler(retryCount, retryHandlerRequestSentEnabled);
308 } else {
309 throw new IllegalArgumentException(
310 "Unsupported parameter " + CONFIG_PROP_HTTP_RETRY_HANDLER_NAME + " value: " + retryHandlerName);
311 }
312 Set<Integer> serviceUnavailableCodes = new HashSet<>();
313 try {
314 for (String code : ConfigUtils.parseCommaSeparatedUniqueNames(serviceUnavailableCodesString)) {
315 serviceUnavailableCodes.add(Integer.parseInt(code));
316 }
317 } catch (NumberFormatException e) {
318 throw new IllegalArgumentException(
319 "Illegal HTTP codes for " + ConfigurationProperties.HTTP_RETRY_HANDLER_SERVICE_UNAVAILABLE
320 + " (list of integers): " + serviceUnavailableCodesString);
321 }
322 ServiceUnavailableRetryStrategy serviceUnavailableRetryStrategy = new ResolverServiceUnavailableRetryStrategy(
323 retryCount, retryInterval, retryIntervalMax, serviceUnavailableCodes);
324
325 HttpClientBuilder builder = HttpClientBuilder.create()
326 .setUserAgent(userAgent)
327 .setRedirectStrategy(LaxRedirectStrategy.INSTANCE)
328 .setDefaultSocketConfig(socketConfig)
329 .setDefaultRequestConfig(requestConfig)
330 .setServiceUnavailableRetryStrategy(serviceUnavailableRetryStrategy)
331 .setRetryHandler(retryHandler)
332 .setDefaultAuthSchemeRegistry(authSchemeRegistry)
333 .setConnectionManager(state.getConnectionManager())
334 .setConnectionManagerShared(true)
335 .setDefaultCredentialsProvider(toCredentialsProvider(server, repoAuthContext, proxy, proxyAuthContext))
336 .setProxy(proxy);
337 final boolean useSystemProperties = ConfigUtils.getBoolean(
338 session,
339 DEFAULT_USE_SYSTEM_PROPERTIES,
340 CONFIG_PROP_USE_SYSTEM_PROPERTIES + "." + repository.getId(),
341 CONFIG_PROP_USE_SYSTEM_PROPERTIES);
342 if (useSystemProperties) {
343 LOGGER.warn(
344 "Transport used Apache HttpClient is instructed to use system properties: this may yield in unwanted side-effects!");
345 LOGGER.warn("Please use documented means to configure resolver transport.");
346 builder.useSystemProperties();
347 }
348
349 final String expectContinue = ConfigUtils.getString(
350 session,
351 null,
352 ConfigurationProperties.HTTP_EXPECT_CONTINUE + "." + repository.getId(),
353 ConfigurationProperties.HTTP_EXPECT_CONTINUE);
354 if (expectContinue != null) {
355 state.setExpectContinue(Boolean.parseBoolean(expectContinue));
356 }
357
358 final boolean reuseConnections = ConfigUtils.getBoolean(
359 session,
360 ConfigurationProperties.DEFAULT_HTTP_REUSE_CONNECTIONS,
361 ConfigurationProperties.HTTP_REUSE_CONNECTIONS + "." + repository.getId(),
362 ConfigurationProperties.HTTP_REUSE_CONNECTIONS);
363 if (!reuseConnections) {
364 builder.setConnectionReuseStrategy(NoConnectionReuseStrategy.INSTANCE);
365 }
366
367 this.client = builder.build();
368 }
369
370
371
372
373 private InetAddress getHttpLocalAddress(RepositorySystemSession session, RemoteRepository repository) {
374 String bindAddress = ConfigUtils.getString(
375 session,
376 null,
377 ConfigurationProperties.HTTP_LOCAL_ADDRESS + "." + repository.getId(),
378 ConfigurationProperties.HTTP_LOCAL_ADDRESS);
379 if (bindAddress == null) {
380 return null;
381 }
382 try {
383 return InetAddress.getByName(bindAddress);
384 } catch (UnknownHostException uhe) {
385 throw new IllegalArgumentException(
386 "Given bind address (" + bindAddress + ") cannot be resolved for remote repository " + repository,
387 uhe);
388 }
389 }
390
391 private static HttpHost toHost(Proxy proxy) {
392 HttpHost host = null;
393 if (proxy != null) {
394
395
396
397
398 host = new HttpHost(proxy.getHost(), proxy.getPort());
399 }
400 return host;
401 }
402
403 private static CredentialsProvider toCredentialsProvider(
404 HttpHost server, AuthenticationContext serverAuthCtx, HttpHost proxy, AuthenticationContext proxyAuthCtx) {
405 CredentialsProvider provider = toCredentialsProvider(server.getHostName(), AuthScope.ANY_PORT, serverAuthCtx);
406 if (proxy != null) {
407 CredentialsProvider p = toCredentialsProvider(proxy.getHostName(), proxy.getPort(), proxyAuthCtx);
408 provider = new DemuxCredentialsProvider(provider, p, proxy);
409 }
410 return provider;
411 }
412
413 private static CredentialsProvider toCredentialsProvider(String host, int port, AuthenticationContext ctx) {
414 DeferredCredentialsProvider provider = new DeferredCredentialsProvider();
415 if (ctx != null) {
416 AuthScope basicScope = new AuthScope(host, port);
417 provider.setCredentials(basicScope, new DeferredCredentialsProvider.BasicFactory(ctx));
418
419 AuthScope ntlmScope = new AuthScope(host, port, AuthScope.ANY_REALM, "ntlm");
420 provider.setCredentials(ntlmScope, new DeferredCredentialsProvider.NtlmFactory(ctx));
421 }
422 return provider;
423 }
424
425 LocalState getState() {
426 return state;
427 }
428
429 private URI resolve(TransportTask task) {
430 return UriUtils.resolve(baseUri, task.getLocation());
431 }
432
433 @Override
434 public int classify(Throwable error) {
435 if (error instanceof HttpTransporterException
436 && ((HttpTransporterException) error).getStatusCode() == HttpStatus.SC_NOT_FOUND) {
437 return ERROR_NOT_FOUND;
438 }
439 return ERROR_OTHER;
440 }
441
442 @Override
443 protected void implPeek(PeekTask task) throws Exception {
444 HttpHead request = commonHeaders(new HttpHead(resolve(task)));
445 try {
446 execute(request, null);
447 } catch (HttpResponseException e) {
448 throw new HttpTransporterException(e.getStatusCode());
449 }
450 }
451
452 @Override
453 protected void implGet(GetTask task) throws Exception {
454 boolean resume = true;
455
456 EntityGetter getter = new EntityGetter(task);
457 HttpGet request = commonHeaders(new HttpGet(resolve(task)));
458 while (true) {
459 try {
460 if (resume) {
461 resume(request, task);
462 }
463 execute(request, getter);
464 break;
465 } catch (HttpResponseException e) {
466 if (resume
467 && e.getStatusCode() == HttpStatus.SC_PRECONDITION_FAILED
468 && request.containsHeader(HttpHeaders.RANGE)) {
469 request = commonHeaders(new HttpGet(resolve(task)));
470 resume = false;
471 continue;
472 }
473 throw new HttpTransporterException(e.getStatusCode());
474 }
475 }
476 }
477
478 @Override
479 protected void implPut(PutTask task) throws Exception {
480 PutTaskEntity entity = new PutTaskEntity(task);
481 HttpPut request = commonHeaders(entity(new HttpPut(resolve(task)), entity));
482 try {
483 execute(request, null);
484 } catch (HttpResponseException e) {
485 if (e.getStatusCode() == HttpStatus.SC_EXPECTATION_FAILED && request.containsHeader(HttpHeaders.EXPECT)) {
486 state.setExpectContinue(false);
487 request = commonHeaders(entity(new HttpPut(request.getURI()), entity));
488 execute(request, null);
489 return;
490 }
491 throw new HttpTransporterException(e.getStatusCode());
492 }
493 }
494
495 private void execute(HttpUriRequest request, EntityGetter getter) throws Exception {
496 try {
497 SharingHttpContext context = new SharingHttpContext(state);
498 prepare(request, context);
499 try (CloseableHttpResponse response = client.execute(server, request, context)) {
500 try {
501 context.close();
502 handleStatus(response);
503 if (getter != null) {
504 getter.handle(response);
505 }
506 } finally {
507 EntityUtils.consumeQuietly(response.getEntity());
508 }
509 }
510 } catch (IOException e) {
511 if (e.getCause() instanceof TransferCancelledException) {
512 throw (Exception) e.getCause();
513 }
514 throw e;
515 }
516 }
517
518 private void prepare(HttpUriRequest request, SharingHttpContext context) throws Exception {
519 final boolean put = HttpPut.METHOD_NAME.equalsIgnoreCase(request.getMethod());
520 if (preemptiveAuth || (preemptivePutAuth && put)) {
521 context.getAuthCache().put(server, new BasicScheme());
522 }
523 if (supportWebDav) {
524 if (state.getWebDav() == null && (put || isPayloadPresent(request))) {
525 HttpOptions req = commonHeaders(new HttpOptions(request.getURI()));
526 try (CloseableHttpResponse response = client.execute(server, req, context)) {
527 state.setWebDav(response.containsHeader(HttpHeaders.DAV));
528 EntityUtils.consumeQuietly(response.getEntity());
529 } catch (IOException e) {
530 LOGGER.debug("Failed to prepare HTTP context", e);
531 }
532 }
533 if (put && Boolean.TRUE.equals(state.getWebDav())) {
534 mkdirs(request.getURI(), context);
535 }
536 }
537 }
538
539 private void mkdirs(URI uri, SharingHttpContext context) throws Exception {
540 List<URI> dirs = UriUtils.getDirectories(baseUri, uri);
541 int index = 0;
542 for (; index < dirs.size(); index++) {
543 try (CloseableHttpResponse response =
544 client.execute(server, commonHeaders(new HttpMkCol(dirs.get(index))), context)) {
545 try {
546 int status = response.getStatusLine().getStatusCode();
547 if (status < 300 || status == HttpStatus.SC_METHOD_NOT_ALLOWED) {
548 break;
549 } else if (status == HttpStatus.SC_CONFLICT) {
550 continue;
551 }
552 handleStatus(response);
553 } finally {
554 EntityUtils.consumeQuietly(response.getEntity());
555 }
556 } catch (IOException e) {
557 LOGGER.debug("Failed to create parent directory {}", dirs.get(index), e);
558 return;
559 }
560 }
561 for (index--; index >= 0; index--) {
562 try (CloseableHttpResponse response =
563 client.execute(server, commonHeaders(new HttpMkCol(dirs.get(index))), context)) {
564 try {
565 handleStatus(response);
566 } finally {
567 EntityUtils.consumeQuietly(response.getEntity());
568 }
569 } catch (IOException e) {
570 LOGGER.debug("Failed to create parent directory {}", dirs.get(index), e);
571 return;
572 }
573 }
574 }
575
576 private <T extends HttpEntityEnclosingRequest> T entity(T request, HttpEntity entity) {
577 request.setEntity(entity);
578 return request;
579 }
580
581 private boolean isPayloadPresent(HttpUriRequest request) {
582 if (request instanceof HttpEntityEnclosingRequest) {
583 HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity();
584 return entity != null && entity.getContentLength() != 0;
585 }
586 return false;
587 }
588
589 private <T extends HttpUriRequest> T commonHeaders(T request) {
590 request.setHeader(HttpHeaders.CACHE_CONTROL, "no-cache, no-store");
591 request.setHeader(HttpHeaders.PRAGMA, "no-cache");
592
593 if (state.isExpectContinue() && isPayloadPresent(request)) {
594 request.setHeader(HttpHeaders.EXPECT, "100-continue");
595 }
596
597 for (Map.Entry<?, ?> entry : headers.entrySet()) {
598 if (!(entry.getKey() instanceof String)) {
599 continue;
600 }
601 if (entry.getValue() instanceof String) {
602 request.setHeader(entry.getKey().toString(), entry.getValue().toString());
603 } else {
604 request.removeHeaders(entry.getKey().toString());
605 }
606 }
607
608 if (!state.isExpectContinue()) {
609 request.removeHeaders(HttpHeaders.EXPECT);
610 }
611
612 return request;
613 }
614
615 private <T extends HttpUriRequest> void resume(T request, GetTask task) throws IOException {
616 long resumeOffset = task.getResumeOffset();
617 if (resumeOffset > 0L && task.getDataPath() != null) {
618 long lastModified = Files.getLastModifiedTime(task.getDataPath()).toMillis();
619 request.setHeader(HttpHeaders.RANGE, "bytes=" + resumeOffset + '-');
620 request.setHeader(
621 HttpHeaders.IF_UNMODIFIED_SINCE, DateUtils.formatDate(new Date(lastModified - 60L * 1000L)));
622 request.setHeader(HttpHeaders.ACCEPT_ENCODING, "identity");
623 }
624 }
625
626 private void handleStatus(CloseableHttpResponse response) throws Exception {
627 int status = response.getStatusLine().getStatusCode();
628 if (status >= 300) {
629 ApacheRFC9457Reporter.INSTANCE.generateException(response, (statusCode, reasonPhrase) -> {
630 throw new HttpResponseException(statusCode, reasonPhrase + " (" + statusCode + ")");
631 });
632 }
633 }
634
635 @Override
636 protected void implClose() {
637 try {
638 client.close();
639 } catch (IOException e) {
640 throw new UncheckedIOException(e);
641 }
642 AuthenticationContext.close(repoAuthContext);
643 AuthenticationContext.close(proxyAuthContext);
644 state.close();
645 }
646
647 private class EntityGetter {
648
649 private final GetTask task;
650
651 EntityGetter(GetTask task) {
652 this.task = task;
653 }
654
655 public void handle(CloseableHttpResponse response) throws IOException, TransferCancelledException {
656 HttpEntity entity = response.getEntity();
657 if (entity == null) {
658 entity = new ByteArrayEntity(new byte[0]);
659 }
660
661 long offset = 0L, length = entity.getContentLength();
662 Header rangeHeader = response.getFirstHeader(HttpHeaders.CONTENT_RANGE);
663 String range = rangeHeader != null ? rangeHeader.getValue() : null;
664 if (range != null) {
665 Matcher m = CONTENT_RANGE_PATTERN.matcher(range);
666 if (!m.matches()) {
667 throw new IOException("Invalid Content-Range header for partial download: " + range);
668 }
669 offset = Long.parseLong(m.group(1));
670 length = Long.parseLong(m.group(2)) + 1L;
671 if (offset < 0L || offset >= length || (offset > 0L && offset != task.getResumeOffset())) {
672 throw new IOException("Invalid Content-Range header for partial download from offset "
673 + task.getResumeOffset() + ": " + range);
674 }
675 }
676
677 final boolean resume = offset > 0L;
678 final Path dataFile = task.getDataPath();
679 if (dataFile == null) {
680 try (InputStream is = entity.getContent()) {
681 utilGet(task, is, true, length, resume);
682 extractChecksums(response);
683 }
684 } else {
685 try (PathProcessor.CollocatedTempFile tempFile = pathProcessor.newTempFile(dataFile)) {
686 task.setDataPath(tempFile.getPath(), resume);
687 if (resume && Files.isRegularFile(dataFile)) {
688 try (InputStream inputStream = Files.newInputStream(dataFile)) {
689 Files.copy(inputStream, tempFile.getPath(), StandardCopyOption.REPLACE_EXISTING);
690 }
691 }
692 try (InputStream is = entity.getContent()) {
693 utilGet(task, is, true, length, resume);
694 }
695 tempFile.move();
696 } finally {
697 task.setDataPath(dataFile);
698 }
699 }
700 if (task.getDataPath() != null) {
701 Header lastModifiedHeader =
702 response.getFirstHeader(HttpHeaders.LAST_MODIFIED);
703 if (lastModifiedHeader != null) {
704 Date lastModified = DateUtils.parseDate(lastModifiedHeader.getValue());
705 if (lastModified != null) {
706 pathProcessor.setLastModified(task.getDataPath(), lastModified.getTime());
707 }
708 }
709 }
710 extractChecksums(response);
711 }
712
713 private void extractChecksums(CloseableHttpResponse response) {
714 Map<String, String> checksums = checksumExtractor.extractChecksums(headerGetter(response));
715 if (checksums != null && !checksums.isEmpty()) {
716 checksums.forEach(task::setChecksum);
717 }
718 }
719 }
720
721 private static Function<String, String> headerGetter(CloseableHttpResponse closeableHttpResponse) {
722 return s -> {
723 Header header = closeableHttpResponse.getFirstHeader(s);
724 return header != null ? header.getValue() : null;
725 };
726 }
727
728 private class PutTaskEntity extends AbstractHttpEntity {
729
730 private final PutTask task;
731
732 PutTaskEntity(PutTask task) {
733 this.task = task;
734 }
735
736 @Override
737 public boolean isRepeatable() {
738 return true;
739 }
740
741 @Override
742 public boolean isStreaming() {
743 return false;
744 }
745
746 @Override
747 public long getContentLength() {
748 return task.getDataLength();
749 }
750
751 @Override
752 public InputStream getContent() throws IOException {
753 return task.newInputStream();
754 }
755
756 @Override
757 public void writeTo(OutputStream os) throws IOException {
758 try {
759 utilPut(task, os, false);
760 } catch (TransferCancelledException e) {
761 throw (IOException) new InterruptedIOException().initCause(e);
762 }
763 }
764 }
765
766 private static class ResolverServiceUnavailableRetryStrategy implements ServiceUnavailableRetryStrategy {
767 private final int retryCount;
768
769 private final long retryInterval;
770
771 private final long retryIntervalMax;
772
773 private final Set<Integer> serviceUnavailableHttpCodes;
774
775
776
777
778
779
780 private static final ThreadLocal<Long> RETRY_INTERVAL_HOLDER = new ThreadLocal<>();
781
782 private ResolverServiceUnavailableRetryStrategy(
783 int retryCount, long retryInterval, long retryIntervalMax, Set<Integer> serviceUnavailableHttpCodes) {
784 if (retryCount < 0) {
785 throw new IllegalArgumentException("retryCount must be >= 0");
786 }
787 if (retryInterval < 0L) {
788 throw new IllegalArgumentException("retryInterval must be >= 0");
789 }
790 if (retryIntervalMax < 0L) {
791 throw new IllegalArgumentException("retryIntervalMax must be >= 0");
792 }
793 this.retryCount = retryCount;
794 this.retryInterval = retryInterval;
795 this.retryIntervalMax = retryIntervalMax;
796 this.serviceUnavailableHttpCodes = requireNonNull(serviceUnavailableHttpCodes);
797 }
798
799 @Override
800 public boolean retryRequest(HttpResponse response, int executionCount, HttpContext context) {
801 final boolean retry = executionCount <= retryCount
802 && (serviceUnavailableHttpCodes.contains(
803 response.getStatusLine().getStatusCode()));
804 if (retry) {
805 Long retryInterval = retryInterval(response, executionCount, context);
806 if (retryInterval != null) {
807 RETRY_INTERVAL_HOLDER.set(retryInterval);
808 return true;
809 }
810 }
811 RETRY_INTERVAL_HOLDER.remove();
812 return false;
813 }
814
815
816
817
818
819
820
821
822 private Long retryInterval(HttpResponse httpResponse, int executionCount, HttpContext httpContext) {
823 Long result = null;
824 Header header = httpResponse.getFirstHeader(HttpHeaders.RETRY_AFTER);
825 if (header != null && header.getValue() != null) {
826 String headerValue = header.getValue();
827 if (headerValue.contains(":")) {
828 Date when = DateUtils.parseDate(headerValue);
829 if (when != null) {
830 result = Math.max(when.getTime() - System.currentTimeMillis(), 0L);
831 }
832 } else {
833 try {
834 result = Long.parseLong(headerValue) * 1000L;
835 } catch (NumberFormatException e) {
836
837 }
838 }
839 }
840 if (result == null) {
841 result = executionCount * this.retryInterval;
842 }
843 if (result > retryIntervalMax) {
844 return null;
845 }
846 return result;
847 }
848
849 @Override
850 public long getRetryInterval() {
851 Long ri = RETRY_INTERVAL_HOLDER.get();
852 if (ri == null) {
853 return 0L;
854 }
855 RETRY_INTERVAL_HOLDER.remove();
856 return ri;
857 }
858 }
859 }