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
 413         //MRM-893, dont send back a file when user intentionally wants a directory
 414         if ( locator.getHref( false ).endsWith( "/" ) )
 415         {
 416             if ( ! resourceFile.isDirectory() )
 417             {
 418                 //force a resource not found
 419                 return null;
 420             }
 421         }
 422
 423         ArchivaDavResource resource =
 424             new ArchivaDavResource( resourceFile.getAbsolutePath(), logicalResource.getPath(),
 425                                     managedRepository.getRepository(), request.getRemoteAddr(),
 426                                     request.getDavSession(), locator, this, mimeTypes, auditListeners, consumers );
 427
 428         if ( !resource.isCollection() )
 429         {
 430             boolean previouslyExisted = resourceFile.exists();
 431
 432             // At this point the incoming request can either be in default or
 433             // legacy layout format.
 434             boolean fromProxy = fetchContentFromProxies( managedRepository, request, logicalResource );
 435
 436             try
 437             {
 438                 // Perform an adjustment of the resource to the managed
 439                 // repository expected path.
 440                 String localResourcePath =
 441                     repositoryRequest.toNativePath( logicalResource.getPath(), managedRepository );
 442                 resourceFile = new File( managedRepository.getRepoRoot(), localResourcePath );
 443             }
 444             catch ( LayoutException e )
 445             {
 446                 if ( previouslyExisted )
 447                 {
 448                     return resource;
 449                 }
 450                 throw new DavException( HttpServletResponse.SC_NOT_FOUND, e );
 451             }
 452
 453             // Attempt to fetch the resource from any defined proxy.
 454             if ( fromProxy )
 455             {
 456                 String repositoryId = locator.getRepositoryId();
 457                 String event = ( previouslyExisted ? AuditEvent.MODIFY_FILE : AuditEvent.CREATE_FILE ) + PROXIED_SUFFIX;
 458                 triggerAuditEvent( request.getRemoteAddr(), repositoryId, logicalResource.getPath(), event );
 459             }
 460
 461             if ( !resourceFile.exists() )
 462             {
 463                 resource = null;
 464             }
 465             else
 466             {
 467                 resource =
 468                     new ArchivaDavResource( resourceFile.getAbsolutePath(), logicalResource.getPath(),
 469                                             managedRepository.getRepository(), request.getRemoteAddr(),
 470                                             request.getDavSession(), locator, this, mimeTypes, auditListeners,
 471                                             consumers );
 472             }
 473         }
 474         return resource;
 475     }
 476
 477     private DavResource doPut( ManagedRepositoryContent managedRepository, DavServletRequest request,
 478                                ArchivaDavResourceLocator locator, LogicalResource logicalResource )
 479         throws DavException
 480     {
 481         /*
 482          * Create parent directories that don't exist when writing a file This actually makes this implementation not
 483          * compliant to the WebDAV RFC - but we have enough knowledge about how the collection is being used to do this
 484          * reasonably and some versions of Maven's WebDAV don't correctly create the collections themselves.
 485          */
 486
 487         File rootDirectory = new File( managedRepository.getRepoRoot() );
 488         File destDir = new File( rootDirectory, logicalResource.getPath() ).getParentFile();
 489         if ( request.getMethod().equals(HTTP_PUT_METHOD) && !destDir.exists() )
 490         {
 491             destDir.mkdirs();
 492             String relPath = PathUtil.getRelative( rootDirectory.getAbsolutePath(), destDir );
 493             triggerAuditEvent( request.getRemoteAddr(), logicalResource.getPath(), relPath, AuditEvent.CREATE_DIR );
 494         }
 495
 496         File resourceFile = new File( managedRepository.getRepoRoot(), logicalResource.getPath() );
 497
 498         return new ArchivaDavResource( resourceFile.getAbsolutePath(), logicalResource.getPath(),
 499                                        managedRepository.getRepository(), request.getRemoteAddr(),
 500                                        request.getDavSession(), locator, this, mimeTypes, auditListeners, consumers );
 501     }
 502
 503     private boolean fetchContentFromProxies( ManagedRepositoryContent managedRepository, DavServletRequest request,
 504                                              LogicalResource resource )
 505         throws DavException
 506     {
 507         if ( repositoryRequest.isSupportFile( resource.getPath() ) )
 508         {
 509             File proxiedFile = connectors.fetchFromProxies( managedRepository, resource.getPath() );
 510
 511             return ( proxiedFile != null );
 512         }
 513
 514         // Is it a Metadata resource?
 515         if ( repositoryRequest.isDefault( resource.getPath() ) && repositoryRequest.isMetadata( resource.getPath() ) )
 516         {
 517             return connectors.fetchMetatadaFromProxies(managedRepository, resource.getPath()) != null;
 518         }
 519
 520         // Not any of the above? Then it's gotta be an artifact reference.
 521         try
 522         {
 523             // Get the artifact reference in a layout neutral way.
 524             ArtifactReference artifact = repositoryRequest.toArtifactReference( resource.getPath() );
 525
 526             if ( artifact != null )
 527             {
 528                 applyServerSideRelocation( managedRepository, artifact );
 529
 530                 File proxiedFile = connectors.fetchFromProxies( managedRepository, artifact );
 531
 532                 resource.setPath( managedRepository.toPath( artifact ) );
 533
 534                 return ( proxiedFile != null );
 535             }
 536         }
 537         catch ( LayoutException e )
 538         {
 539             /* eat it */
 540         }
 541         catch ( ProxyDownloadException e )
 542         {
 543             log.error( e.getMessage(), e );
 544             throw new DavException( HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Unable to fetch artifact resource." );
 545         }
 546         return false;
 547     }
 548
 549     /**
 550      * A relocation capable client will request the POM prior to the artifact, and will then read meta-data and do
 551      * client side relocation. A simplier client (like maven 1) will only request the artifact and not use the
 552      * metadatas.
 553      * <p>
 554      * For such clients, archiva does server-side relocation by reading itself the &lt;relocation&gt; element in
 555      * metadatas and serving the expected artifact.
 556      */
 557     protected void applyServerSideRelocation( ManagedRepositoryContent managedRepository, ArtifactReference artifact )
 558         throws ProxyDownloadException
 559     {
 560         if ( "pom".equals( artifact.getType() ) )
 561         {
 562             return;
 563         }
 564
 565         // Build the artifact POM reference
 566         ArtifactReference pomReference = new ArtifactReference();
 567         pomReference.setGroupId( artifact.getGroupId() );
 568         pomReference.setArtifactId( artifact.getArtifactId() );
 569         pomReference.setVersion( artifact.getVersion() );
 570         pomReference.setType( "pom" );
 571
 572         // Get the artifact POM from proxied repositories if needed
 573         connectors.fetchFromProxies( managedRepository, pomReference );
 574
 575         // Open and read the POM from the managed repo
 576         File pom = managedRepository.toFile( pomReference );
 577
 578         if ( !pom.exists() )
 579         {
 580             return;
 581         }
 582
 583         try
 584         {
 585             Model model = new MavenXpp3Reader().read( new FileReader( pom ) );
 586             DistributionManagement dist = model.getDistributionManagement();
 587             if ( dist != null )
 588             {
 589                 Relocation relocation = dist.getRelocation();
 590                 if ( relocation != null )
 591                 {
 592                     // artifact is relocated : update the repositoryPath
 593                     if ( relocation.getGroupId() != null )
 594                     {
 595                         artifact.setGroupId( relocation.getGroupId() );
 596                     }
 597                     if ( relocation.getArtifactId() != null )
 598                     {
 599                         artifact.setArtifactId( relocation.getArtifactId() );
 600                     }
 601                     if ( relocation.getVersion() != null )
 602                     {
 603                         artifact.setVersion( relocation.getVersion() );
 604                     }
 605                 }
 606             }
 607         }
 608         catch ( FileNotFoundException e )
 609         {
 610             // Artifact has no POM in repo : ignore
 611         }
 612         catch ( IOException e )
 613         {
 614             // Unable to read POM : ignore.
 615         }
 616         catch ( XmlPullParserException e )
 617         {
 618             // Invalid POM : ignore
 619         }
 620     }
 621
 622     // TODO: remove?
 623     private void triggerAuditEvent( String remoteIP, String repositoryId, String resource, String action )
 624     {
 625         String activePrincipal = ArchivaXworkUser.getActivePrincipal( ActionContext.getContext().getSession() );
 626         AuditEvent event = new AuditEvent( repositoryId, activePrincipal, resource, action );
 627         event.setRemoteIP( remoteIP );
 628
 629         for ( AuditListener listener : auditListeners )
 630         {
 631             listener.auditEvent( event );
 632         }
 633     }
 634
 635     public void addAuditListener( AuditListener listener )
 636     {
 637         this.auditListeners.add( listener );
 638     }
 639
 640     public void clearAuditListeners()
 641     {
 642         this.auditListeners.clear();
 643     }
 644
 645     public void removeAuditListener( AuditListener listener )
 646     {
 647         this.auditListeners.remove( listener );
 648     }
 649
 650     private void setHeaders( DavServletResponse response, DavResourceLocator locator, DavResource resource )
 651     {
 652         // [MRM-503] - Metadata file need Pragma:no-cache response
 653         // header.
 654         if ( locator.getResourcePath().endsWith( "/maven-metadata.xml" ) )
 655         {
 656             response.addHeader( "Pragma", "no-cache" );
 657             response.addHeader( "Cache-Control", "no-cache" );
 658         }
 659
 660         //We need to specify this so connecting wagons can work correctly
 661         response.addDateHeader("last-modified", resource.getModificationTime());
 662
 663         // TODO: [MRM-524] determine http caching options for other types of files (artifacts, sha1, md5, snapshots)
 664     }
 665
 666     private ManagedRepositoryContent getManagedRepository( String respositoryId )
 667         throws DavException
 668     {
 669         if ( respositoryId != null )
 670         {
 671             try
 672             {
 673                 return repositoryFactory.getManagedRepositoryContent( respositoryId );
 674             }
 675             catch ( RepositoryNotFoundException e )
 676             {
 677                 throw new DavException( HttpServletResponse.SC_NOT_FOUND, e );
 678             }
 679             catch ( RepositoryException e )
 680             {
 681                 throw new DavException( HttpServletResponse.SC_NOT_FOUND, e );
 682             }
 683         }
 684         return null;
 685     }
 686
 687     private void checkLocatorIsInstanceOfRepositoryLocator( DavResourceLocator locator )
 688         throws DavException
 689     {
 690         if ( !( locator instanceof RepositoryLocator ) )
 691         {
 692             throw new DavException( HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
 693                                     "Locator does not implement RepositoryLocator" );
 694         }
 695     }
 696
 697     class LogicalResource
 698     {
 699         private String path;
 700
 701         public LogicalResource( String path )
 702         {
 703             this.path = path;
 704         }
 705
 706         public String getPath()
 707         {
 708             return path;
 709         }
 710
 711         public void setPath( String path )
 712         {
 713             this.path = path;
 714         }
 715     }
 716
 717     protected boolean isAuthorized( DavServletRequest request, String repositoryId )
 718         throws DavException
 719     {
 720         try
 721         {
 722             AuthenticationResult result = httpAuth.getAuthenticationResult( request, null );
 723             SecuritySession securitySession = httpAuth.getSecuritySession();
 724
 725             return servletAuth.isAuthenticated( request, result ) &&
 726                 servletAuth.isAuthorized( request, securitySession, repositoryId,
 727                                           WebdavMethodUtil.isWriteMethod( request.getMethod() ) );
 728         }
 729         catch ( AuthenticationException e )
 730         {
 731             throw new UnauthorizedDavException( repositoryId, "You are not authenticated" );
 732         }
 733         catch ( MustChangePasswordException e )
 734         {
 735             throw new UnauthorizedDavException( repositoryId, "You must change your password." );
 736         }
 737         catch ( AccountLockedException e )
 738         {
 739             throw new UnauthorizedDavException( repositoryId, "User account is locked." );
 740         }
 741         catch ( AuthorizationException e )
 742         {
 743             throw new DavException( HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
 744                                     "Fatal Authorization Subsystem Error." );
 745         }
 746         catch ( UnauthorizedException e )
 747         {
 748             throw new UnauthorizedDavException( repositoryId, e.getMessage() );
 749         }
 750     }
 751
 752     private DavResource getResource( DavServletRequest request, List<String> repositories, ArchivaDavResourceLocator locator )
 753         throws DavException
 754     {
 755         List<File> mergedRepositoryContents = new ArrayList<File>();
 756         LogicalResource logicalResource =
 757             new LogicalResource( RepositoryPathUtil.getLogicalResource( locator.getResourcePath() ) );
 758
 759         // flow:
 760         // if the current user logged in has permission to any of the repositories, allow user to
 761         // browse the repo group but displaying only the repositories which the user has permission to access.
 762         // otherwise, prompt for authentication.
 763
 764         // put the current session in the session map which will be passed to ArchivaXworkUser
 765         Map<String, Object> sessionMap = new HashMap<String, Object>();
 766         if( request.getSession().getAttribute( SecuritySystemConstants.SECURITY_SESSION_KEY ) != null )
 767         {
 768             sessionMap.put( SecuritySystemConstants.SECURITY_SESSION_KEY,
 769                             request.getSession().getAttribute( SecuritySystemConstants.SECURITY_SESSION_KEY ) );
 770         }
 771
 772         String activePrincipal = ArchivaXworkUser.getActivePrincipal( sessionMap );
 773         boolean allow = isAllowedToContinue( request, repositories, activePrincipal );
 774
 775         if( allow )
 776         {
 777             for( String repository : repositories )
 778             {
 779                 // for prompted authentication
 780                 if( httpAuth.getSecuritySession() != null )
 781                 {
 782                     try
 783                     {
 784                         if( isAuthorized( request, repository ) )
 785                         {
 786                             getResource( locator, mergedRepositoryContents, logicalResource, repository );
 787                         }
 788                     }
 789                     catch ( DavException e )
 790                     {
 791                         continue;
 792                     }
 793                 }
 794                 else
 795                 {
 796                     // for the current user logged in
 797                     try
 798                     {
 799                         if( servletAuth.isAuthorizedToAccessVirtualRepository( activePrincipal, repository ) )
 800                         {
 801                             getResource( locator, mergedRepositoryContents, logicalResource, repository );
 802                         }
 803                     }
 804                     catch ( UnauthorizedException e )
 805                     {
 806                         continue;
 807                     }
 808                 }
 809             }
 810         }
 811         else
 812         {
 813             throw new UnauthorizedDavException( locator.getRepositoryId(), "User not authorized." );
 814         }
 815
 816         ArchivaVirtualDavResource resource =
 817             new ArchivaVirtualDavResource( mergedRepositoryContents, logicalResource.getPath(), mimeTypes, locator, this );
 818
 819         // compatibility with MRM-440 to ensure browsing the repository group works ok
 820         if ( resource.isCollection() && !request.getRequestURI().endsWith("/" ) )
 821         {
 822             throw new BrowserRedirectException( resource.getHref() );
 823         }
 824
 825         return resource;
 826     }
 827
 828     private void getResource( ArchivaDavResourceLocator locator, List<File> mergedRepositoryContents,
 829                               LogicalResource logicalResource, String repository )
 830         throws DavException
 831     {
 832         ManagedRepositoryContent managedRepository = null;
 833
 834         try
 835         {
 836             managedRepository = getManagedRepository( repository );
 837         }
 838         catch ( DavException de )
 839         {
 840             throw new DavException( HttpServletResponse.SC_NOT_FOUND, "Invalid managed repository <" +
 841                 repository + ">" );
 842         }
 843
 844         if ( !locator.getResourcePath().startsWith( ArchivaVirtualDavResource.HIDDEN_PATH_PREFIX ) )
 845         {
 846             if( managedRepository != null )
 847             {
 848                 File resourceFile = new File( managedRepository.getRepoRoot(), logicalResource.getPath() );
 849                 if( resourceFile.exists() )
 850                 {
 851                     mergedRepositoryContents.add( resourceFile );
 852                 }
 853             }
 854         }
 855     }
 856
 857     /**
 858      * Check if the current user is authorized to access any of the repos
 859      *
 860      * @param request
 861      * @param repositories
 862      * @param activePrincipal
 863      * @return
 864      */
 865     private boolean isAllowedToContinue( DavServletRequest request, List<String> repositories, String activePrincipal )
 866     {
 867         boolean allow = false;
 868
 869
 870         // if securitySession != null, it means that the user was prompted for authentication
 871         if( httpAuth.getSecuritySession() != null )
 872         {
 873             for( String repository : repositories )
 874             {
 875                 try
 876                 {
 877                     if( isAuthorized( request, repository ) )
 878                     {
 879                         allow = true;
 880                         break;
 881                     }
 882                 }
 883                 catch( DavException e )
 884                 {
 885                     continue;
 886                 }
 887             }
 888         }
 889         else
 890         {
 891             for( String repository : repositories )
 892             {
 893                 try
 894                 {
 895                     if( servletAuth.isAuthorizedToAccessVirtualRepository( activePrincipal, repository ) )
 896                     {
 897                         allow = true;
 898                         break;
 899                     }
 900                 }
 901                 catch ( UnauthorizedException e )
 902                 {
 903                     continue;
 904                 }
 905             }
 906         }
 907
 908         return allow;
 909     }
 910
 911     private File writeMergedMetadataToFile( ArchivaRepositoryMetadata mergedMetadata, String outputFilename )
 912         throws RepositoryMetadataException, DigesterException, IOException
 913     {
 914         File outputFile = new File( outputFilename );
 915         if( outputFile.exists() )
 916         {
 917             FileUtils.deleteQuietly( outputFile );
 918         }
 919
 920         outputFile.getParentFile().mkdirs();
 921         RepositoryMetadataWriter.write( mergedMetadata, outputFile );
 922
 923         createChecksumFile( outputFilename, digestSha1 );
 924         createChecksumFile( outputFilename, digestMd5 );
 925
 926         return outputFile;
 927     }
 928
 929     private void createChecksumFile( String path, Digester digester )
 930         throws DigesterException, IOException
 931     {
 932         File checksumFile = new File( path + digester.getFilenameExtension() );
 933         if ( !checksumFile.exists() )
 934         {
 935             FileUtils.deleteQuietly( checksumFile );
 936             checksum.createChecksum( new File( path ), digester );
 937         }
 938         else if ( !checksumFile.isFile() )
 939         {
 940             log.error( "Checksum file is not a file." );
 941         }
 942     }
 943
 944     private boolean isProjectReference( String requestedResource )
 945     {
 946        try
 947        {
 948            VersionedReference versionRef = metadataTools.toVersionedReference( requestedResource );
 949            return false;
 950        }
 951        catch ( RepositoryMetadataException re )
 952        {
 953            return true;
 954        }
 955     }
 956 }