org.argeo.cms/src/org/argeo/cms/internal/kernel/CmsFsProvider.java

   1 package org.argeo.cms.internal.kernel;
   2
   3 import java.io.IOException;
   4 import java.net.URI;
   5 import java.net.URISyntaxException;
   6 import java.nio.file.FileSystem;
   7 import java.nio.file.FileSystemAlreadyExistsException;
   8 import java.nio.file.Path;
   9 import java.nio.file.spi.FileSystemProvider;
  10 import java.util.HashMap;
  11 import java.util.Map;
  12
  13 import javax.jcr.Node;
  14 import javax.jcr.Property;
  15 import javax.jcr.Repository;
  16 import javax.jcr.RepositoryException;
  17 import javax.jcr.RepositoryFactory;
  18 import javax.jcr.Session;
  19 import javax.jcr.nodetype.NodeType;
  20
  21 import org.argeo.api.NodeConstants;
  22 import org.argeo.api.NodeUtils;
  23 import org.argeo.cms.auth.CurrentUser;
  24 import org.argeo.jackrabbit.fs.AbstractJackrabbitFsProvider;
  25 import org.argeo.jcr.fs.JcrFileSystem;
  26 import org.argeo.jcr.fs.JcrFileSystemProvider;
  27 import org.argeo.jcr.fs.JcrFsException;
  28 import org.osgi.framework.BundleContext;
  29 import org.osgi.framework.FrameworkUtil;
  30 import org.osgi.framework.InvalidSyntaxException;
  31
  32 /** Implementation of an {@link FileSystemProvider} based on Jackrabbit. */
  33 public class CmsFsProvider extends AbstractJackrabbitFsProvider {
  34         private Map<String, CmsFileSystem> fileSystems = new HashMap<>();
  35
  36         @Override
  37         public String getScheme() {
  38                 return NodeConstants.SCHEME_NODE;
  39         }
  40
  41         @Override
  42         public FileSystem newFileSystem(URI uri, Map<String, ?> env) throws IOException {
  43                 BundleContext bc = FrameworkUtil.getBundle(CmsFsProvider.class).getBundleContext();
  44                 String username = CurrentUser.getUsername();
  45                 if (username == null) {
  46                         // TODO deal with anonymous
  47                         return null;
  48                 }
  49                 if (fileSystems.containsKey(username))
  50                         throw new FileSystemAlreadyExistsException("CMS file system already exists for user " + username);
  51
  52                 try {
  53                         String host = uri.getHost();
  54                         if (host != null && !host.trim().equals("")) {
  55                                 URI repoUri = new URI("http", uri.getUserInfo(), uri.getHost(), uri.getPort(), "/jcr/node", null, null);
  56                                 RepositoryFactory repositoryFactory = bc.getService(bc.getServiceReference(RepositoryFactory.class));
  57                                 Repository repository = NodeUtils.getRepositoryByUri(repositoryFactory, repoUri.toString());
  58                                 CmsFileSystem fileSystem = new CmsFileSystem(this, repository);
  59                                 fileSystems.put(username, fileSystem);
  60                                 return fileSystem;
  61                         } else {
  62                                 Repository repository = bc.getService(
  63                                                 bc.getServiceReferences(Repository.class, "(cn=" + NodeConstants.EGO_REPOSITORY + ")")
  64                                                                 .iterator().next());
  65 //                              Session session = repository.login();
  66                                 CmsFileSystem fileSystem = new CmsFileSystem(this, repository);
  67                                 fileSystems.put(username, fileSystem);
  68                                 return fileSystem;
  69                         }
  70                 } catch (InvalidSyntaxException | URISyntaxException e) {
  71                         throw new IllegalArgumentException("Cannot open file system " + uri + " for user " + username, e);
  72                 }
  73         }
  74
  75         @Override
  76         public FileSystem getFileSystem(URI uri) {
  77                 return currentUserFileSystem();
  78         }
  79
  80         @Override
  81         public Path getPath(URI uri) {
  82                 JcrFileSystem fileSystem = currentUserFileSystem();
  83                 String path = uri.getPath();
  84                 if (fileSystem == null)
  85                         try {
  86                                 fileSystem = (JcrFileSystem) newFileSystem(uri, new HashMap<String, Object>());
  87                         } catch (IOException e) {
  88                                 throw new JcrFsException("Could not autocreate file system", e);
  89                         }
  90                 return fileSystem.getPath(path);
  91         }
  92
  93         protected JcrFileSystem currentUserFileSystem() {
  94                 String username = CurrentUser.getUsername();
  95                 return fileSystems.get(username);
  96         }
  97
  98         public Node getUserHome(Repository repository) {
  99                 try {
 100                         Session session = repository.login(NodeConstants.HOME_WORKSPACE);
 101                         return NodeUtils.getUserHome(session);
 102                 } catch (RepositoryException e) {
 103                         throw new IllegalStateException("Cannot get user home", e);
 104                 }
 105         }
 106
 107         static class CmsFileSystem extends JcrFileSystem {
 108                 public CmsFileSystem(JcrFileSystemProvider provider, Repository repository) throws IOException {
 109                         super(provider, repository);
 110                 }
 111
 112                 public boolean skipNode(Node node) throws RepositoryException {
 113 //                      if (node.isNodeType(NodeType.NT_HIERARCHY_NODE) || node.isNodeType(NodeTypes.NODE_USER_HOME)
 114 //                                      || node.isNodeType(NodeTypes.NODE_GROUP_HOME))
 115                         if (node.isNodeType(NodeType.NT_HIERARCHY_NODE))
 116                                 return false;
 117                         // FIXME Better identifies home
 118                         if (node.hasProperty(Property.JCR_ID))
 119                                 return false;
 120                         return true;
 121                 }
 122
 123         }
 124 }