source.dussan.org Git - archiva.git/blob

   1 package org.apache.maven.archiva.webdav;
   2
   3 /*
   4  * Licensed to the Apache Software Foundation (ASF) under one
   5  * or more contributor license agreements.  See the NOTICE file
   6  * distributed with this work for additional information
   7  * regarding copyright ownership.  The ASF licenses this file
   8  * to you under the Apache License, Version 2.0 (the
   9  * "License"); you may not use this file except in compliance
  10  * with the License.  You may obtain a copy of the License at
  11  *
  12  *  http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing,
  15  * software distributed under the License is distributed on an
  16  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  17  * KIND, either express or implied.  See the License for the
  18  * specific language governing permissions and limitations
  19  * under the License.
  20  */
  21
  22 import java.io.File;
  23 import java.io.FileNotFoundException;
  24 import java.io.FileReader;
  25 import java.io.IOException;
  26 import java.util.ArrayList;
  27 import java.util.HashMap;
  28 import java.util.List;
  29 import java.util.Map;
  30
  31 import javax.servlet.http.HttpServletResponse;
  32
  33 import org.apache.commons.io.FileUtils;
  34 import org.apache.commons.lang.StringUtils;
  35 import org.apache.jackrabbit.webdav.DavException;
  36 import org.apache.jackrabbit.webdav.DavResource;
  37 import org.apache.jackrabbit.webdav.DavResourceFactory;
  38 import org.apache.jackrabbit.webdav.DavResourceLocator;
  39 import org.apache.jackrabbit.webdav.DavServletRequest;
  40 import org.apache.jackrabbit.webdav.DavServletResponse;
  41 import org.apache.jackrabbit.webdav.DavSession;
  42 import org.apache.jackrabbit.webdav.lock.LockManager;
  43 import org.apache.jackrabbit.webdav.lock.SimpleLockManager;
  44 import org.apache.maven.archiva.common.utils.PathUtil;
  45 import org.apache.maven.archiva.configuration.ArchivaConfiguration;
  46 import org.apache.maven.archiva.configuration.RepositoryGroupConfiguration;
  47 import org.apache.maven.archiva.model.ArchivaRepositoryMetadata;
  48 import org.apache.maven.archiva.model.ArtifactReference;
  49 import org.apache.maven.archiva.model.ProjectReference;
  50 import org.apache.maven.archiva.model.VersionedReference;
  51 import org.apache.maven.archiva.policies.ProxyDownloadException;
  52 import org.apache.maven.archiva.proxy.RepositoryProxyConnectors;
  53 import org.apache.maven.archiva.repository.ManagedRepositoryContent;
  54 import org.apache.maven.archiva.repository.RepositoryContentFactory;
  55 import org.apache.maven.archiva.repository.RepositoryException;
  56 import org.apache.maven.archiva.repository.RepositoryNotFoundException;
  57 import org.apache.maven.archiva.repository.audit.AuditEvent;
  58 import org.apache.maven.archiva.repository.audit.AuditListener;
  59 import org.apache.maven.archiva.repository.audit.Auditable;
  60 import org.apache.maven.archiva.repository.content.RepositoryRequest;
  61 import org.apache.maven.archiva.repository.layout.LayoutException;
  62 import org.apache.maven.archiva.repository.metadata.MetadataTools;
  63 import org.apache.maven.archiva.repository.metadata.RepositoryMetadataException;
  64 import org.apache.maven.archiva.repository.metadata.RepositoryMetadataMerge;
  65 import org.apache.maven.archiva.repository.metadata.RepositoryMetadataReader;
  66 import org.apache.maven.archiva.repository.metadata.RepositoryMetadataWriter;
  67 import org.apache.maven.archiva.repository.scanner.RepositoryContentConsumers;
  68 import org.apache.maven.archiva.security.ArchivaXworkUser;
  69 import org.apache.maven.archiva.security.ServletAuthenticator;
  70 import org.apache.maven.archiva.webdav.util.MimeTypes;
  71 import org.apache.maven.archiva.webdav.util.RepositoryPathUtil;
  72 import org.apache.maven.archiva.webdav.util.WebdavMethodUtil;
  73 import org.apache.maven.model.DistributionManagement;
  74 import org.apache.maven.model.Model;
  75 import org.apache.maven.model.Relocation;
  76 import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
  77 import org.codehaus.plexus.digest.ChecksumFile;
  78 import org.codehaus.plexus.digest.Digester;
  79 import org.codehaus.plexus.digest.DigesterException;
  80 import org.codehaus.plexus.redback.authentication.AuthenticationException;
  81 import org.codehaus.plexus.redback.authentication.AuthenticationResult;
  82 import org.codehaus.plexus.redback.authorization.AuthorizationException;
  83 import org.codehaus.plexus.redback.authorization.UnauthorizedException;
  84 import org.codehaus.plexus.redback.policy.AccountLockedException;
  85 import org.codehaus.plexus.redback.policy.MustChangePasswordException;
  86 import org.codehaus.plexus.redback.system.SecuritySession;
  87 import org.codehaus.plexus.redback.system.SecuritySystemConstants;
  88 import org.codehaus.plexus.redback.xwork.filter.authentication.HttpAuthenticator;
  89 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
  90 import org.slf4j.Logger;
  91 import org.slf4j.LoggerFactory;
  92
  93 import com.opensymphony.xwork.ActionContext;
  94
  95 /**
  96  * @author <a href="mailto:james@atlassian.com">James William Dumay</a>
  97  * @plexus.component role="org.apache.maven.archiva.webdav.ArchivaDavResourceFactory"
  98  */
  99 public class ArchivaDavResourceFactory
 100     implements DavResourceFactory, Auditable
 101 {
 102     private static final String PROXIED_SUFFIX = " (proxied)";
 103
 104     private static final String HTTP_PUT_METHOD = "PUT";
 105
 106     private Logger log = LoggerFactory.getLogger( ArchivaDavResourceFactory.class );
 107
 108     /**
 109      * @plexus.requirement role="org.apache.maven.archiva.repository.audit.AuditListener"
 110      */
 111     private List<AuditListener> auditListeners = new ArrayList<AuditListener>();
 112
 113     /**
 114      * @plexus.requirement
 115      */
 116     private RepositoryContentFactory repositoryFactory;
 117
 118     /**
 119      * @plexus.requirement
 120      */
 121     private RepositoryRequest repositoryRequest;
 122
 123     /**
 124      * @plexus.requirement role-hint="default"
 125      */
 126     private RepositoryProxyConnectors connectors;
 127
 128     /**
 129      * @plexus.requirement
 130      */
 131     private MetadataTools metadataTools;
 132
 133     /**
 134      * @plexus.requirement
 135      */
 136     private MimeTypes mimeTypes;
 137
 138     /**
 139      * @plexus.requirement
 140      */
 141     private ArchivaConfiguration archivaConfiguration;
 142
 143     /**
 144      * @plexus.requirement
 145      */
 146     private ServletAuthenticator servletAuth;
 147
 148     /**
 149      * @plexus.requirement role-hint="basic"
 150      */
 151     private HttpAuthenticator httpAuth;
 152
 153     /**
 154      * Lock Manager - use simple implementation from JackRabbit
 155      */
 156     private final LockManager lockManager = new SimpleLockManager();
 157
 158     /**
 159      * @plexus.requirement
 160      */
 161     private RepositoryContentConsumers consumers;
 162
 163     /**
 164      * @plexus.requirement
 165      */
 166     private ChecksumFile checksum;
 167
 168     /**
 169      * @plexus.requirement role-hint="sha1"
 170      */
 171     private Digester digestSha1;
 172
 173     /**
 174      * @plexus.requirement role-hint="md5";
 175      */
 176     private Digester digestMd5;
 177
 178     public DavResource createResource( final DavResourceLocator locator, final DavServletRequest request,
 179                                        final DavServletResponse response )
 180         throws DavException
 181     {
 182         checkLocatorIsInstanceOfRepositoryLocator( locator );
 183         ArchivaDavResourceLocator archivaLocator = (ArchivaDavResourceLocator) locator;
 184
 185         RepositoryGroupConfiguration repoGroupConfig =
 186             archivaConfiguration.getConfiguration().getRepositoryGroupsAsMap().get( archivaLocator.getRepositoryId() );
 187         List<String> repositories = new ArrayList<String>();
 188
 189         boolean isGet = WebdavMethodUtil.isReadMethod( request.getMethod() );
 190         boolean isPut = WebdavMethodUtil.isWriteMethod( request.getMethod() );
 191
 192         if ( repoGroupConfig != null )
 193         {
 194             if( WebdavMethodUtil.isWriteMethod( request.getMethod() ) )
 195             {
 196                 throw new DavException( HttpServletResponse.SC_METHOD_NOT_ALLOWED,
 197                                         "Write method not allowed for repository groups." );
 198             }
 199             repositories.addAll( repoGroupConfig.getRepositories() );
 200
 201             // handle browse requests for virtual repos
 202             if ( RepositoryPathUtil.getLogicalResource( locator.getResourcePath() ).endsWith( "/" ) )
 203             {
 204                 return getResource( request, repositories, archivaLocator );
 205             }
 206         }
 207         else
 208         {
 209             repositories.add( archivaLocator.getRepositoryId() );
 210         }
 211
 212         //MRM-419 - Windows Webdav support. Should not 404 if there is no content.
 213         if (StringUtils.isEmpty(archivaLocator.getRepositoryId()))
 214         {
 215             throw new DavException(HttpServletResponse.SC_NO_CONTENT);
 216         }
 217
 218         List<DavResource> availableResources = new ArrayList<DavResource>();
 219         List<String> resourcesInAbsolutePath = new ArrayList<String>();
 220         DavException e = null;
 221
 222         for ( String repositoryId : repositories )
 223         {
 224             ManagedRepositoryContent managedRepository = null;
 225
 226             try
 227             {
 228                 managedRepository = getManagedRepository( repositoryId );
 229             }
 230             catch ( DavException de )
 231             {
 232                 throw new DavException( HttpServletResponse.SC_NOT_FOUND, "Invalid managed repository <" +
 233                     repositoryId + ">" );
 234             }
 235
 236             DavResource resource = null;
 237
 238             if ( !locator.getResourcePath().startsWith( ArchivaDavResource.HIDDEN_PATH_PREFIX ) )
 239             {
 240                 if ( managedRepository != null )
 241                 {
 242                     try
 243                     {
 244                         if( isAuthorized( request, repositoryId ) )
 245                         {
 246                             LogicalResource logicalResource =
 247                                 new LogicalResource( RepositoryPathUtil.getLogicalResource( locator.getResourcePath() ) );
 248
 249                             if ( isGet )
 250                             {
 251                                 resource = doGet( managedRepository, request, archivaLocator, logicalResource );
 252                             }
 253
 254                             if ( isPut )
 255                             {
 256                                 resource = doPut( managedRepository, request, archivaLocator, logicalResource );
 257                             }
 258                         }
 259                     }
 260                     catch ( DavException de )
 261                     {
 262                         e = de;
 263                         continue;
 264                     }
 265
 266                     if( resource == null )
 267                     {
 268                         e = new DavException( HttpServletResponse.SC_NOT_FOUND, "Resource does not exist" );
 269                     }
 270                     else
 271                     {
 272                         availableResources.add( resource );
 273
 274                         String logicalResource = RepositoryPathUtil.getLogicalResource( locator.getResourcePath() );
 275                         resourcesInAbsolutePath.add( managedRepository.getRepoRoot() + logicalResource );
 276                     }
 277                 }
 278                 else
 279                 {
 280                     e = new DavException( HttpServletResponse.SC_NOT_FOUND, "Repository does not exist" );
 281                 }
 282             }
 283         }
 284
 285         if ( availableResources.isEmpty() )
 286         {
 287             throw e;
 288         }
 289
 290         String requestedResource = request.getRequestURI();
 291
 292         // MRM-872 : merge all available metadata
 293         // merge metadata only when requested via the repo group
 294         if ( ( repositoryRequest.isMetadata( requestedResource ) || ( requestedResource.endsWith( "metadata.xml.sha1" ) || requestedResource.endsWith( "metadata.xml.md5" ) ) ) &&
 295             repoGroupConfig != null )
 296         {
 297             // this should only be at the project level not version level!
 298             if( isProjectReference( requestedResource ) )
 299             {
 300                 String artifactId = StringUtils.substringBeforeLast( requestedResource.replace( '\\', '/' ), "/" );
 301                 artifactId = StringUtils.substringAfterLast( artifactId, "/" );
 302
 303                 ArchivaDavResource res = ( ArchivaDavResource ) availableResources.get( 0 );
 304                 String filePath = StringUtils.substringBeforeLast( res.getLocalResource().getAbsolutePath().replace( '\\', '/' ), "/" );
 305                 filePath = filePath + "/maven-metadata-" + repoGroupConfig.getId() + ".xml";
 306
 307                 // for MRM-872 handle checksums of the merged metadata files
 308                 if( repositoryRequest.isSupportFile( requestedResource ) )
 309                 {
 310                     File metadataChecksum = new File( filePath + "."
 311                               + StringUtils.substringAfterLast( requestedResource, "." ) );
 312                     if( metadataChecksum.exists() )
 313                     {
 314                         LogicalResource logicalResource =
 315                             new LogicalResource( RepositoryPathUtil.getLogicalResource( locator.getResourcePath() ) );
 316
 317                         ArchivaDavResource metadataChecksumResource =
 318                             new ArchivaDavResource( metadataChecksum.getAbsolutePath(), logicalResource.getPath(), null,
 319                                                     request.getRemoteAddr(), request.getDavSession(), archivaLocator, this,
 320                                                     mimeTypes, auditListeners, consumers );
 321                         availableResources.add( 0, metadataChecksumResource );
 322                     }
 323                 }
 324                 else
 325                 {   // merge the metadata of all repos under group
 326                     ArchivaRepositoryMetadata mergedMetadata = new ArchivaRepositoryMetadata();
 327                     for ( String resourceAbsPath : resourcesInAbsolutePath )
 328                     {
 329                         try
 330                         {
 331                             File metadataFile = new File( resourceAbsPath );
 332                             ArchivaRepositoryMetadata repoMetadata = RepositoryMetadataReader.read( metadataFile );
 333                             mergedMetadata = RepositoryMetadataMerge.merge( mergedMetadata, repoMetadata );
 334                         }
 335                         catch ( RepositoryMetadataException r )
 336                         {
 337                             throw new DavException( HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
 338                                                     "Error occurred while reading metadata file." );
 339                         }
 340                     }
 341
 342                     try
 343                     {
 344                         File resourceFile = writeMergedMetadataToFile( mergedMetadata, filePath );
 345
 346                         LogicalResource logicalResource =
 347                             new LogicalResource( RepositoryPathUtil.getLogicalResource( locator.getResourcePath() ) );
 348
 349                         ArchivaDavResource metadataResource =
 350                             new ArchivaDavResource( resourceFile.getAbsolutePath(), logicalResource.getPath(), null,
 351                                                     request.getRemoteAddr(), request.getDavSession(), archivaLocator, this,
 352                                                     mimeTypes, auditListeners, consumers );
 353                         availableResources.add( 0, metadataResource );
 354                     }
 355                     catch ( RepositoryMetadataException r )
 356                     {
 357                         throw new DavException( HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
 358                                                 "Error occurred while writing metadata file." );
 359                     }
 360                     catch ( IOException ie )
 361                     {
 362                         throw new DavException( HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
 363                             "Error occurred while generating checksum files." );
 364                     }
 365                     catch ( DigesterException de )
 366                     {
 367                         throw new DavException( HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
 368                             "Error occurred while generating checksum files." );
 369                     }
 370                 }
 371             }
 372         }
 373
 374         DavResource resource = availableResources.get( 0 );
 375         setHeaders(response, locator, resource );
 376
 377         // compatibility with MRM-440 to ensure browsing the repository works ok
 378         if ( resource.isCollection() && !request.getRequestURI().endsWith("/" ) )
 379         {
 380             throw new BrowserRedirectException( resource.getHref() );
 381         }
 382         resource.addLockManager(lockManager);
 383         return resource;
 384     }
 385
 386     public DavResource createResource( final DavResourceLocator locator, final DavSession davSession )
 387         throws DavException
 388     {
 389         checkLocatorIsInstanceOfRepositoryLocator( locator );
 390         ArchivaDavResourceLocator archivaLocator = (ArchivaDavResourceLocator) locator;
 391
 392         DavResource resource = null;
 393         if ( !locator.getResourcePath().startsWith( ArchivaDavResource.HIDDEN_PATH_PREFIX ) )
 394         {
 395             ManagedRepositoryContent managedRepository = getManagedRepository( archivaLocator.getRepositoryId() );
 396             String logicalResource = RepositoryPathUtil.getLogicalResource( locator.getResourcePath() );
 397             File resourceFile = new File( managedRepository.getRepoRoot(), logicalResource );
 398             resource =
 399                 new ArchivaDavResource( resourceFile.getAbsolutePath(), logicalResource,
 400                                         managedRepository.getRepository(), davSession, archivaLocator, this, mimeTypes,
 401                                         auditListeners, consumers );
 402         }
 403         resource.addLockManager(lockManager);
 404         return resource;
 405     }
 406
 407     private DavResource doGet( ManagedRepositoryContent managedRepository, DavServletRequest request,
 408                                ArchivaDavResourceLocator locator, LogicalResource logicalResource )
 409         throws DavException
 410     {
 411         File resourceFile = new File( managedRepository.getRepoRoot(), logicalResource.getPath() );
 412         ArchivaDavResource resource =
 413             new ArchivaDavResource( resourceFile.getAbsolutePath(), logicalResource.getPath(),
 414                                     managedRepository.getRepository(), request.getRemoteAddr(),
 415                                     request.getDavSession(), locator, this, mimeTypes, auditListeners, consumers );
 416
 417         if ( !resource.isCollection() )
 418         {
 419             boolean previouslyExisted = resourceFile.exists();
 420
 421             // At this point the incoming request can either be in default or
 422             // legacy layout format.
 423             boolean fromProxy = fetchContentFromProxies( managedRepository, request, logicalResource );
 424
 425             try
 426             {
 427                 // Perform an adjustment of the resource to the managed
 428                 // repository expected path.
 429                 String localResourcePath =
 430                     repositoryRequest.toNativePath( logicalResource.getPath(), managedRepository );
 431                 resourceFile = new File( managedRepository.getRepoRoot(), localResourcePath );
 432             }
 433             catch ( LayoutException e )
 434             {
 435                 if ( previouslyExisted )
 436                 {
 437                     return resource;
 438                 }
 439                 throw new DavException( HttpServletResponse.SC_NOT_FOUND, e );
 440             }
 441
 442             // Attempt to fetch the resource from any defined proxy.
 443             if ( fromProxy )
 444             {
 445                 String repositoryId = locator.getRepositoryId();
 446                 String event = ( previouslyExisted ? AuditEvent.MODIFY_FILE : AuditEvent.CREATE_FILE ) + PROXIED_SUFFIX;
 447                 triggerAuditEvent( request.getRemoteAddr(), repositoryId, logicalResource.getPath(), event );
 448             }
 449
 450             if ( !resourceFile.exists() )
 451             {
 452                 resource = null;
 453             }
 454             else
 455             {
 456                 resource =
 457                     new ArchivaDavResource( resourceFile.getAbsolutePath(), logicalResource.getPath(),
 458                                             managedRepository.getRepository(), request.getRemoteAddr(),
 459                                             request.getDavSession(), locator, this, mimeTypes, auditListeners,
 460                                             consumers );
 461             }
 462         }
 463         return resource;
 464     }
 465
 466     private DavResource doPut( ManagedRepositoryContent managedRepository, DavServletRequest request,
 467                                ArchivaDavResourceLocator locator, LogicalResource logicalResource )
 468         throws DavException
 469     {
 470         /*
 471          * Create parent directories that don't exist when writing a file This actually makes this implementation not
 472          * compliant to the WebDAV RFC - but we have enough knowledge about how the collection is being used to do this
 473          * reasonably and some versions of Maven's WebDAV don't correctly create the collections themselves.
 474          */
 475
 476         File rootDirectory = new File( managedRepository.getRepoRoot() );
 477         File destDir = new File( rootDirectory, logicalResource.getPath() ).getParentFile();
 478         if ( request.getMethod().equals(HTTP_PUT_METHOD) && !destDir.exists() )
 479         {
 480             destDir.mkdirs();
 481             String relPath = PathUtil.getRelative( rootDirectory.getAbsolutePath(), destDir );
 482             triggerAuditEvent( request.getRemoteAddr(), logicalResource.getPath(), relPath, AuditEvent.CREATE_DIR );
 483         }
 484
 485         File resourceFile = new File( managedRepository.getRepoRoot(), logicalResource.getPath() );
 486
 487         return new ArchivaDavResource( resourceFile.getAbsolutePath(), logicalResource.getPath(),
 488                                        managedRepository.getRepository(), request.getRemoteAddr(),
 489                                        request.getDavSession(), locator, this, mimeTypes, auditListeners, consumers );
 490     }
 491
 492     private boolean fetchContentFromProxies( ManagedRepositoryContent managedRepository, DavServletRequest request,
 493                                              LogicalResource resource )
 494         throws DavException
 495     {
 496         if ( repositoryRequest.isSupportFile( resource.getPath() ) )
 497         {
 498             // Checksums are fetched with artifact / metadata.
 499
 500             // Need to adjust the path for the checksum resource.
 501             return false;
 502         }
 503
 504         // Is it a Metadata resource?
 505         if ( repositoryRequest.isDefault( resource.getPath() ) && repositoryRequest.isMetadata( resource.getPath() ) )
 506         {
 507             return fetchMetadataFromProxies( managedRepository, request, resource );
 508         }
 509
 510         // Not any of the above? Then it's gotta be an artifact reference.
 511         try
 512         {
 513             // Get the artifact reference in a layout neutral way.
 514             ArtifactReference artifact = repositoryRequest.toArtifactReference( resource.getPath() );
 515
 516             if ( artifact != null )
 517             {
 518                 applyServerSideRelocation( managedRepository, artifact );
 519
 520                 File proxiedFile = connectors.fetchFromProxies( managedRepository, artifact );
 521
 522                 resource.setPath( managedRepository.toPath( artifact ) );
 523
 524                 return ( proxiedFile != null );
 525             }
 526         }
 527         catch ( LayoutException e )
 528         {
 529             /* eat it */
 530         }
 531         catch ( ProxyDownloadException e )
 532         {
 533             log.error( e.getMessage(), e );
 534             throw new DavException( HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Unable to fetch artifact resource." );
 535         }
 536         return false;
 537     }
 538
 539     private boolean fetchMetadataFromProxies( ManagedRepositoryContent managedRepository, DavServletRequest request,
 540                                               LogicalResource resource )
 541         throws DavException
 542     {
 543         ProjectReference project;
 544         VersionedReference versioned;
 545
 546         try
 547         {
 548
 549             versioned = metadataTools.toVersionedReference( resource.getPath() );
 550             if ( versioned != null )
 551             {
 552                 connectors.fetchFromProxies( managedRepository, versioned );
 553                 return true;
 554             }
 555         }
 556         catch ( RepositoryMetadataException e )
 557         {
 558             /* eat it */
 559         }
 560
 561         try
 562         {
 563             project = metadataTools.toProjectReference( resource.getPath() );
 564             if ( project != null )
 565             {
 566                 connectors.fetchFromProxies( managedRepository, project );
 567                 return true;
 568             }
 569         }
 570         catch ( RepositoryMetadataException e )
 571         {
 572             /* eat it */
 573         }
 574
 575         return false;
 576     }
 577
 578     /**
 579      * A relocation capable client will request the POM prior to the artifact, and will then read meta-data and do
 580      * client side relocation. A simplier client (like maven 1) will only request the artifact and not use the
 581      * metadatas.
 582      * <p>
 583      * For such clients, archiva does server-side relocation by reading itself the &lt;relocation&gt; element in
 584      * metadatas and serving the expected artifact.
 585      */
 586     protected void applyServerSideRelocation( ManagedRepositoryContent managedRepository, ArtifactReference artifact )
 587         throws ProxyDownloadException
 588     {
 589         if ( "pom".equals( artifact.getType() ) )
 590         {
 591             return;
 592         }
 593
 594         // Build the artifact POM reference
 595         ArtifactReference pomReference = new ArtifactReference();
 596         pomReference.setGroupId( artifact.getGroupId() );
 597         pomReference.setArtifactId( artifact.getArtifactId() );
 598         pomReference.setVersion( artifact.getVersion() );
 599         pomReference.setType( "pom" );
 600
 601         // Get the artifact POM from proxied repositories if needed
 602         connectors.fetchFromProxies( managedRepository, pomReference );
 603
 604         // Open and read the POM from the managed repo
 605         File pom = managedRepository.toFile( pomReference );
 606
 607         if ( !pom.exists() )
 608         {
 609             return;
 610         }
 611
 612         try
 613         {
 614             Model model = new MavenXpp3Reader().read( new FileReader( pom ) );
 615             DistributionManagement dist = model.getDistributionManagement();
 616             if ( dist != null )
 617             {
 618                 Relocation relocation = dist.getRelocation();
 619                 if ( relocation != null )
 620                 {
 621                     // artifact is relocated : update the repositoryPath
 622                     if ( relocation.getGroupId() != null )
 623                     {
 624                         artifact.setGroupId( relocation.getGroupId() );
 625                     }
 626                     if ( relocation.getArtifactId() != null )
 627                     {
 628                         artifact.setArtifactId( relocation.getArtifactId() );
 629                     }
 630                     if ( relocation.getVersion() != null )
 631                     {
 632                         artifact.setVersion( relocation.getVersion() );
 633                     }
 634                 }
 635             }
 636         }
 637         catch ( FileNotFoundException e )
 638         {
 639             // Artifact has no POM in repo : ignore
 640         }
 641         catch ( IOException e )
 642         {
 643             // Unable to read POM : ignore.
 644         }
 645         catch ( XmlPullParserException e )
 646         {
 647             // Invalid POM : ignore
 648         }
 649     }
 650
 651     // TODO: remove?
 652     private void triggerAuditEvent( String remoteIP, String repositoryId, String resource, String action )
 653     {
 654         String activePrincipal = ArchivaXworkUser.getActivePrincipal( ActionContext.getContext().getSession() );
 655         AuditEvent event = new AuditEvent( repositoryId, activePrincipal, resource, action );
 656         event.setRemoteIP( remoteIP );
 657
 658         for ( AuditListener listener : auditListeners )
 659         {
 660             listener.auditEvent( event );
 661         }
 662     }
 663
 664     public void addAuditListener( AuditListener listener )
 665     {
 666         this.auditListeners.add( listener );
 667     }
 668
 669     public void clearAuditListeners()
 670     {
 671         this.auditListeners.clear();
 672     }
 673
 674     public void removeAuditListener( AuditListener listener )
 675     {
 676         this.auditListeners.remove( listener );
 677     }
 678
 679     private void setHeaders( DavServletResponse response, DavResourceLocator locator, DavResource resource )
 680     {
 681         // [MRM-503] - Metadata file need Pragma:no-cache response
 682         // header.
 683         if ( locator.getResourcePath().endsWith( "/maven-metadata.xml" ) )
 684         {
 685             response.addHeader( "Pragma", "no-cache" );
 686             response.addHeader( "Cache-Control", "no-cache" );
 687         }
 688
 689         //We need to specify this so connecting wagons can work correctly
 690         response.addDateHeader("last-modified", resource.getModificationTime());
 691
 692         // TODO: [MRM-524] determine http caching options for other types of files (artifacts, sha1, md5, snapshots)
 693     }
 694
 695     private ManagedRepositoryContent getManagedRepository( String respositoryId )
 696         throws DavException
 697     {
 698         if ( respositoryId != null )
 699         {
 700             try
 701             {
 702                 return repositoryFactory.getManagedRepositoryContent( respositoryId );
 703             }
 704             catch ( RepositoryNotFoundException e )
 705             {
 706                 throw new DavException( HttpServletResponse.SC_NOT_FOUND, e );
 707             }
 708             catch ( RepositoryException e )
 709             {
 710                 throw new DavException( HttpServletResponse.SC_NOT_FOUND, e );
 711             }
 712         }
 713         return null;
 714     }
 715
 716     private void checkLocatorIsInstanceOfRepositoryLocator( DavResourceLocator locator )
 717         throws DavException
 718     {
 719         if ( !( locator instanceof RepositoryLocator ) )
 720         {
 721             throw new DavException( HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
 722                                     "Locator does not implement RepositoryLocator" );
 723         }
 724     }
 725
 726     class LogicalResource
 727     {
 728         private String path;
 729
 730         public LogicalResource( String path )
 731         {
 732             this.path = path;
 733         }
 734
 735         public String getPath()
 736         {
 737             return path;
 738         }
 739
 740         public void setPath( String path )
 741         {
 742             this.path = path;
 743         }
 744     }
 745
 746     protected boolean isAuthorized( DavServletRequest request, String repositoryId )
 747         throws DavException
 748     {
 749         try
 750         {
 751             AuthenticationResult result = httpAuth.getAuthenticationResult( request, null );
 752             SecuritySession securitySession = httpAuth.getSecuritySession();
 753
 754             return servletAuth.isAuthenticated( request, result ) &&
 755                 servletAuth.isAuthorized( request, securitySession, repositoryId,
 756                                           WebdavMethodUtil.isWriteMethod( request.getMethod() ) );
 757         }
 758         catch ( AuthenticationException e )
 759         {
 760             throw new UnauthorizedDavException( repositoryId, "You are not authenticated" );
 761         }
 762         catch ( MustChangePasswordException e )
 763         {
 764             throw new UnauthorizedDavException( repositoryId, "You must change your password." );
 765         }
 766         catch ( AccountLockedException e )
 767         {
 768             throw new UnauthorizedDavException( repositoryId, "User account is locked." );
 769         }
 770         catch ( AuthorizationException e )
 771         {
 772             throw new DavException( HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
 773                                     "Fatal Authorization Subsystem Error." );
 774         }
 775         catch ( UnauthorizedException e )
 776         {
 777             throw new UnauthorizedDavException( repositoryId, e.getMessage() );
 778         }
 779     }
 780
 781     private DavResource getResource( DavServletRequest request, List<String> repositories, ArchivaDavResourceLocator locator )
 782         throws DavException
 783     {
 784         List<File> mergedRepositoryContents = new ArrayList<File>();
 785         LogicalResource logicalResource =
 786             new LogicalResource( RepositoryPathUtil.getLogicalResource( locator.getResourcePath() ) );
 787
 788         // flow:
 789         // if the current user logged in has permission to any of the repositories, allow user to
 790         // browse the repo group but displaying only the repositories which the user has permission to access.
 791         // otherwise, prompt for authentication.
 792
 793         // put the current session in the session map which will be passed to ArchivaXworkUser
 794         Map<String, Object> sessionMap = new HashMap<String, Object>();
 795         if( request.getSession().getAttribute( SecuritySystemConstants.SECURITY_SESSION_KEY ) != null )
 796         {
 797             sessionMap.put( SecuritySystemConstants.SECURITY_SESSION_KEY,
 798                             request.getSession().getAttribute( SecuritySystemConstants.SECURITY_SESSION_KEY ) );
 799         }
 800
 801         String activePrincipal = ArchivaXworkUser.getActivePrincipal( sessionMap );
 802         boolean allow = isAllowedToContinue( request, repositories, activePrincipal );
 803
 804         if( allow )
 805         {
 806             for( String repository : repositories )
 807             {
 808                 // for prompted authentication
 809                 if( httpAuth.getSecuritySession() != null )
 810                 {
 811                     try
 812                     {
 813                         if( isAuthorized( request, repository ) )
 814                         {
 815                             getResource( locator, mergedRepositoryContents, logicalResource, repository );
 816                         }
 817                     }
 818                     catch ( DavException e )
 819                     {
 820                         continue;
 821                     }
 822                 }
 823                 else
 824                 {
 825                     // for the current user logged in
 826                     try
 827                     {
 828                         if( servletAuth.isAuthorizedToAccessVirtualRepository( activePrincipal, repository ) )
 829                         {
 830                             getResource( locator, mergedRepositoryContents, logicalResource, repository );
 831                         }
 832                     }
 833                     catch ( UnauthorizedException e )
 834                     {
 835                         continue;
 836                     }
 837                 }
 838             }
 839         }
 840         else
 841         {
 842             throw new UnauthorizedDavException( locator.getRepositoryId(), "User not authorized." );
 843         }
 844
 845         ArchivaVirtualDavResource resource =
 846             new ArchivaVirtualDavResource( mergedRepositoryContents, logicalResource.getPath(), mimeTypes, locator, this );
 847
 848         // compatibility with MRM-440 to ensure browsing the repository group works ok
 849         if ( resource.isCollection() && !request.getRequestURI().endsWith("/" ) )
 850         {
 851             throw new BrowserRedirectException( resource.getHref() );
 852         }
 853
 854         return resource;
 855     }
 856
 857     private void getResource( ArchivaDavResourceLocator locator, List<File> mergedRepositoryContents,
 858                               LogicalResource logicalResource, String repository )
 859         throws DavException
 860     {
 861         ManagedRepositoryContent managedRepository = null;
 862
 863         try
 864         {
 865             managedRepository = getManagedRepository( repository );
 866         }
 867         catch ( DavException de )
 868         {
 869             throw new DavException( HttpServletResponse.SC_NOT_FOUND, "Invalid managed repository <" +
 870                 repository + ">" );
 871         }
 872
 873         if ( !locator.getResourcePath().startsWith( ArchivaVirtualDavResource.HIDDEN_PATH_PREFIX ) )
 874         {
 875             if( managedRepository != null )
 876             {
 877                 File resourceFile = new File( managedRepository.getRepoRoot(), logicalResource.getPath() );
 878                 if( resourceFile.exists() )
 879                 {
 880                     mergedRepositoryContents.add( resourceFile );
 881                 }
 882             }
 883         }
 884     }
 885
 886     /**
 887      * Check if the current user is authorized to access any of the repos
 888      *
 889      * @param request
 890      * @param repositories
 891      * @param activePrincipal
 892      * @return
 893      */
 894     private boolean isAllowedToContinue( DavServletRequest request, List<String> repositories, String activePrincipal )
 895     {
 896         boolean allow = false;
 897
 898
 899         // if securitySession != null, it means that the user was prompted for authentication
 900         if( httpAuth.getSecuritySession() != null )
 901         {
 902             for( String repository : repositories )
 903             {
 904                 try
 905                 {
 906                     if( isAuthorized( request, repository ) )
 907                     {
 908                         allow = true;
 909                         break;
 910                     }
 911                 }
 912                 catch( DavException e )
 913                 {
 914                     continue;
 915                 }
 916             }
 917         }
 918         else
 919         {
 920             for( String repository : repositories )
 921             {
 922                 try
 923                 {
 924                     if( servletAuth.isAuthorizedToAccessVirtualRepository( activePrincipal, repository ) )
 925                     {
 926                         allow = true;
 927                         break;
 928                     }
 929                 }
 930                 catch ( UnauthorizedException e )
 931                 {
 932                     continue;
 933                 }
 934             }
 935         }
 936
 937         return allow;
 938     }
 939
 940     private File writeMergedMetadataToFile( ArchivaRepositoryMetadata mergedMetadata, String outputFilename )
 941         throws RepositoryMetadataException, DigesterException, IOException
 942     {
 943         File outputFile = new File( outputFilename );
 944         if( outputFile.exists() )
 945         {
 946             FileUtils.deleteQuietly( outputFile );
 947         }
 948
 949         outputFile.getParentFile().mkdirs();
 950         RepositoryMetadataWriter.write( mergedMetadata, outputFile );
 951
 952         createChecksumFile( outputFilename, digestSha1 );
 953         createChecksumFile( outputFilename, digestMd5 );
 954
 955         return outputFile;
 956     }
 957
 958     private void createChecksumFile( String path, Digester digester )
 959         throws DigesterException, IOException
 960     {
 961         File checksumFile = new File( path + digester.getFilenameExtension() );
 962         if ( !checksumFile.exists() )
 963         {
 964             FileUtils.deleteQuietly( checksumFile );
 965             checksum.createChecksum( new File( path ), digester );
 966         }
 967         else if ( !checksumFile.isFile() )
 968         {
 969             log.error( "Checksum file is not a file." );
 970         }
 971     }
 972
 973     private boolean isProjectReference( String requestedResource )
 974     {
 975        try
 976        {
 977            VersionedReference versionRef = metadataTools.toVersionedReference( requestedResource );
 978            return false;
 979        }
 980        catch ( RepositoryMetadataException re )
 981        {
 982            return true;
 983        }
 984     }
 985 }