426 lines
16 KiB
Java
426 lines
16 KiB
Java
package org.gcube.data.access.storagehub.services;
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import java.util.Calendar;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import javax.enterprise.context.RequestScoped;
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import javax.inject.Inject;
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import javax.jcr.Node;
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import javax.jcr.RepositoryException;
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import javax.jcr.Session;
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import javax.jcr.security.AccessControlEntry;
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import javax.jcr.security.AccessControlManager;
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import javax.jcr.security.Privilege;
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import javax.servlet.ServletContext;
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import javax.ws.rs.Consumes;
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import javax.ws.rs.PUT;
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import javax.ws.rs.Path;
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import javax.ws.rs.PathParam;
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import javax.ws.rs.Produces;
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import javax.ws.rs.core.Context;
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import javax.ws.rs.core.MediaType;
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import org.apache.jackrabbit.api.security.JackrabbitAccessControlList;
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import org.apache.jackrabbit.commons.jackrabbit.authorization.AccessControlUtils;
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import org.gcube.common.authorization.library.provider.AuthorizationProvider;
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import org.gcube.common.gxrest.response.outbound.GXOutboundErrorResponse;
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import org.gcube.common.storagehub.model.Excludes;
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import org.gcube.common.storagehub.model.NodeConstants;
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import org.gcube.common.storagehub.model.acls.AccessType;
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import org.gcube.common.storagehub.model.exceptions.BackendGenericError;
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import org.gcube.common.storagehub.model.exceptions.InvalidCallParameters;
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import org.gcube.common.storagehub.model.exceptions.InvalidItemException;
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import org.gcube.common.storagehub.model.exceptions.StorageHubException;
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import org.gcube.common.storagehub.model.exceptions.UserNotAuthorizedException;
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import org.gcube.common.storagehub.model.items.FolderItem;
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import org.gcube.common.storagehub.model.items.Item;
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import org.gcube.common.storagehub.model.items.SharedFolder;
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import org.gcube.common.storagehub.model.types.ItemAction;
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import org.gcube.common.storagehub.model.types.NodeProperty;
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import org.gcube.common.storagehub.model.types.PrimaryNodeType;
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import org.gcube.data.access.storagehub.AuthorizationChecker;
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import org.gcube.data.access.storagehub.Constants;
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import org.gcube.data.access.storagehub.Utils;
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import org.gcube.data.access.storagehub.accounting.AccountingHandler;
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import org.gcube.data.access.storagehub.handlers.CredentialHandler;
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import org.gcube.data.access.storagehub.handlers.Item2NodeConverter;
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import org.gcube.data.access.storagehub.handlers.Node2ItemConverter;
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import org.gcube.data.access.storagehub.handlers.VersionHandler;
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import org.gcube.smartgears.utils.InnerMethodName;
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import org.glassfish.jersey.media.multipart.FormDataParam;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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@Path("items")
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public class ItemSharing {
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private static final Logger log = LoggerFactory.getLogger(ItemSharing.class);
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@Inject
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RepositoryInitializer repository;
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@Inject
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AccountingHandler accountingHandler;
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@RequestScoped
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@PathParam("id")
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String id;
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@Context
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ServletContext context;
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@Inject
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AuthorizationChecker authChecker;
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@Inject
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VersionHandler versionHandler;
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@Inject Node2ItemConverter node2Item;
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@Inject Item2NodeConverter item2Node;
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@PUT
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@Path("{id}/share")
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@Produces(MediaType.APPLICATION_JSON)
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@Consumes(MediaType.MULTIPART_FORM_DATA)
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public String share(@FormDataParam("users") Set<String> users, @FormDataParam("defaultAccessType") AccessType accessType){
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InnerMethodName.instance.set("shareFolder");
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Session ses = null;
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String toReturn = null;
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try{
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String login = AuthorizationProvider.instance.get().getClient().getId();
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ses = repository.getRepository().login(CredentialHandler.getAdminCredentials(context));
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authChecker.checkWriteAuthorizationControl(ses, id, false);
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//Item item = node2Item.getItem(ses.getNodeByIdentifier(id), Excludes.ALL);
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if (accessType==null)
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accessType = AccessType.READ_ONLY;
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if (users==null || users.isEmpty())
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throw new InvalidCallParameters("users is empty");
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Node nodeToShare = ses.getNodeByIdentifier(id);
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boolean alreadyShared = false;
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Node sharedFolderNode;
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if (!node2Item.checkNodeType(nodeToShare, SharedFolder.class))
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sharedFolderNode= shareFolder(nodeToShare, ses);
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else {
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sharedFolderNode = nodeToShare;
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alreadyShared = true;
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}
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ses.save();
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ses.getWorkspace().getLockManager().lock(sharedFolderNode.getPath(), true, true, 0,login);
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try {
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AccessControlManager acm = ses.getAccessControlManager();
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JackrabbitAccessControlList acls = AccessControlUtils.getAccessControlList(acm, sharedFolderNode.getPath());
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if (!alreadyShared) {
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Privilege[] adminPrivileges = new Privilege[] { acm.privilegeFromName(AccessType.ADMINISTRATOR.getValue()) };
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addUserToSharing(sharedFolderNode, ses, login, adminPrivileges, acls);
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users.remove(login);
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}
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Privilege[] userPrivileges = new Privilege[] { acm.privilegeFromName(accessType.getValue()) };
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for (String user : users)
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try {
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addUserToSharing(sharedFolderNode, ses, user, userPrivileges, acls);
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}catch(Exception e){
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log.warn("error adding user {} to sharing of folder {}", user, sharedFolderNode.getName());
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}
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acm.setPolicy(sharedFolderNode.getPath(), acls);
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accountingHandler.createShareFolder(sharedFolderNode.getProperty(NodeProperty.TITLE.toString()).getString(), users, ses, sharedFolderNode, false);
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ses.save();
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toReturn = sharedFolderNode.getIdentifier();
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} finally {
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ses.getWorkspace().getLockManager().unlock(sharedFolderNode.getPath());
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}
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}catch(RepositoryException re){
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log.error("jcr sharing", re);
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GXOutboundErrorResponse.throwException(new BackendGenericError("jcr error extracting archive", re));
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}catch(StorageHubException she ){
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log.error("error sharing", she);
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GXOutboundErrorResponse.throwException(she);
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}finally{
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if (ses!=null)
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ses.logout();
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}
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return toReturn;
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}
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private Node shareFolder(Node node, Session ses) throws RepositoryException, BackendGenericError, StorageHubException{
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String login = AuthorizationProvider.instance.get().getClient().getId();
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if (!node2Item.checkNodeType(node, FolderItem.class) || Utils.hasSharedChildren(node) || !node.getProperty(NodeProperty.OWNER.toString()).getString().equals(login))
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throw new InvalidItemException("item with id "+id+" cannot be shared");
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String sharedFolderName = node.getIdentifier();
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String newNodePath = Constants.SHARED_FOLDER_PATH+"/"+sharedFolderName;
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ses.move(node.getPath(),newNodePath);
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Node sharedFolderNode = ses.getNode(newNodePath);
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sharedFolderNode.setPrimaryType(PrimaryNodeType.NT_WORKSPACE_SHARED_FOLDER);
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return sharedFolderNode;
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}
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private void addUserToSharing(Node sharedFolderNode, Session ses, String user, Privilege[] userPrivileges, JackrabbitAccessControlList acls) throws RepositoryException{
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ses.getWorkspace().clone(ses.getWorkspace().getName(), sharedFolderNode.getPath(), sharedFolderNode.getProperty(NodeProperty.TITLE.toString()).getString(), false);
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String userRootWSId = ses.getNode(Utils.getHomePath(user).toPath()).getIdentifier();
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acls.addAccessControlEntry(AccessControlUtils.getPrincipal(ses, user), userPrivileges );
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Node usersNode =null;
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if (sharedFolderNode.hasNode(NodeConstants.USERS_NAME))
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usersNode = sharedFolderNode.getNode(NodeConstants.USERS_NAME);
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else
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usersNode = sharedFolderNode.addNode(NodeConstants.USERS_NAME);
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usersNode.setProperty(user, String.format("%s/%s",userRootWSId,sharedFolderNode.getProperty(NodeProperty.TITLE.toString()).getString()));
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}
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@PUT
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@Path("{id}/unshare")
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@Produces(MediaType.APPLICATION_JSON)
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@Consumes(MediaType.MULTIPART_FORM_DATA)
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public String unshare(@FormDataParam("users") Set<String> users){
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InnerMethodName.instance.set("unshareFolder");
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String login = AuthorizationProvider.instance.get().getClient().getId();
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Session ses = null;
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String toReturn = null;
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try {
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ses = repository.getRepository().login(CredentialHandler.getAdminCredentials(context));
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Node sharedNode = ses.getNodeByIdentifier(id);
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Item item = node2Item.getItem(sharedNode, Excludes.ALL);
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if (!(item instanceof FolderItem) || !((FolderItem) item).isShared() || ((SharedFolder) item).isVreFolder())
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throw new InvalidItemException("item with id "+id+" cannot be unshared");
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SharedFolder sharedItem =(SharedFolder) item;
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Set<String> usersInSharedFolder = new HashSet<>(sharedItem.getUsers().getMap().keySet());
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usersInSharedFolder.removeAll(users);
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if (users==null || users.size()==0 || usersInSharedFolder.size()<=1)
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return unshareAll(login, ses, sharedItem);
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ses.getWorkspace().getLockManager().lock(sharedNode.getPath(), true, true, 0,login);
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try {
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if (users.size()==1 && users.contains(login))
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toReturn = unshareCaller(login, ses, sharedItem);
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else toReturn = unsharePartial(users, login, ses, sharedItem);
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}finally {
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ses.getWorkspace().getLockManager().unlock(sharedNode.getPath());
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}
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}catch(RepositoryException re){
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log.error("jcr unsharing", re);
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GXOutboundErrorResponse.throwException(new BackendGenericError("jcr error extracting archive", re));
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}catch(StorageHubException she ){
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log.error("error unsharing", she);
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GXOutboundErrorResponse.throwException(she);
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}finally{
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if (ses!=null)
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ses.logout();
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}
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return toReturn;
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}
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private String unshareAll(String login, Session ses, SharedFolder item) throws StorageHubException, BackendGenericError, RepositoryException{
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authChecker.checkAdministratorControl(ses, item);
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if (!login.equals(item.getOwner()))
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throw new UserNotAuthorizedException("user "+login+" not authorized to unshare all");
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Node sharedItemNode = ses.getNodeByIdentifier(item.getId());
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ses.getWorkspace().getLockManager().lock(sharedItemNode.getPath(), true, true, 0,login);
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Node unsharedNode;
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try {
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log.debug("user list is empty, I'm going to remove also the shared dir");
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//TODO: take the admin folder and remove his clone then move the shared folder from share to the user home and change the folder type
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String adminDirPath = (String)item.getUsers().getMap().get(login);
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String[] splitString = adminDirPath.split("/");
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String parentDirectoryId = splitString[0];
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String directoryName = splitString[1];
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Node parentNode = ses.getNodeByIdentifier(parentDirectoryId);
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log.debug("parent node path is {}/{}",parentNode.getPath(), directoryName);
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Node adminNode = ses.getNode(String.format("%s/%s",parentNode.getPath(), directoryName));
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adminNode.removeShare();
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unsharedNode = createUnsharedFolder(ses, parentNode, directoryName, item.getDescription(), login);
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List<Item> itemsToCopy = Utils.getItemList(sharedItemNode, Excludes.ALL, null, true, null);
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for (Item itemCopy: itemsToCopy) {
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Node itemToCopyNode = ses.getNodeByIdentifier(itemCopy.getId());
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log.debug("copying {} to {}", itemToCopyNode.getPath(), unsharedNode.getPath());
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ses.move(itemToCopyNode.getPath(), String.format("%s/%s",unsharedNode.getPath(), itemToCopyNode.getName()));
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}
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ses.save();
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}finally {
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ses.getWorkspace().getLockManager().unlock(sharedItemNode.getPath());
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}
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sharedItemNode.removeSharedSet();
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ses.save();
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log.debug("all the users have been removed, the folder is totally unshared");
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return unsharedNode.getIdentifier();
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}
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private String unshareCaller(String login, Session ses, SharedFolder item) throws StorageHubException, RepositoryException{
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if (login.equals(item.getOwner()))
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throw new InvalidCallParameters("the callor is the owner, the folder cannot be unshared");
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if (item.getUsers().getMap().get(login)==null)
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throw new InvalidCallParameters("the folder is not shared with user "+login);
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Node sharedFolderNode =ses.getNodeByIdentifier(item.getId());
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String parentId = removeSharingForUser(login, ses, item);
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AccessControlManager acm = ses.getAccessControlManager();
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JackrabbitAccessControlList acls = AccessControlUtils.getAccessControlList(acm, sharedFolderNode.getPath());
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AccessControlEntry entryToDelete= null;
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for (AccessControlEntry ace :acls.getAccessControlEntries()) {
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if (ace.getPrincipal().getName().equals(login)) {
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entryToDelete = ace;
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break;
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}
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}
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if (entryToDelete!=null)
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acls.removeAccessControlEntry(entryToDelete);
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log.debug("removed Access control entry for user {}",login);
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Node sharedItemNode = ses.getNodeByIdentifier(item.getId());
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Node usersNode = sharedItemNode.getNode(NodeConstants.USERS_NAME);
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usersNode.remove();
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Node newUsersNode = sharedItemNode.addNode(NodeConstants.USERS_NAME);
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item.getUsers().getMap().entrySet().stream().filter(entry -> !entry.getKey().equals(login)).forEach(entry-> {try {
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newUsersNode.setProperty(entry.getKey(), (String)entry.getValue());
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} catch (Exception e) {
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log.error("error adding property to shared node users node under "+item.getId());
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}});
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acm.setPolicy(sharedFolderNode.getPath(), acls);
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ses.save();
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return parentId;
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}
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private String unsharePartial(Set<String> usersToUnshare, String login, Session ses, SharedFolder item) throws StorageHubException, RepositoryException {
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authChecker.checkAdministratorControl(ses, (SharedFolder)item);
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if (usersToUnshare.contains(item.getOwner()))
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throw new UserNotAuthorizedException("user "+login+" not authorized to unshare owner");
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Node sharedFolderNode =ses.getNodeByIdentifier(item.getId());
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AccessControlManager acm = ses.getAccessControlManager();
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JackrabbitAccessControlList acls = AccessControlUtils.getAccessControlList(acm, sharedFolderNode.getPath());
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for (String user : usersToUnshare) {
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removeSharingForUser(user, ses, item);
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AccessControlEntry entryToDelete= null;
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for (AccessControlEntry ace :acls.getAccessControlEntries()) {
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if (ace.getPrincipal().getName().equals(login)) {
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entryToDelete = ace;
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break;
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}
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}
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if (entryToDelete!=null)
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acls.removeAccessControlEntry(entryToDelete);
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}
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log.debug("removed Access control entry for user {}",login);
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Node sharedItemNode = ses.getNodeByIdentifier(item.getId());
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Node usersNode = sharedItemNode.getNode(NodeConstants.USERS_NAME);
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usersNode.remove();
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Node newUsersNode = sharedItemNode.addNode(NodeConstants.USERS_NAME);
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item.getUsers().getMap().entrySet().stream().filter(entry -> !usersToUnshare.contains(entry.getKey())).forEach(entry-> {try {
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newUsersNode.setProperty(entry.getKey(), (String)entry.getValue());
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} catch (Exception e) {
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log.error("error adding property to shared node users node under "+item.getId());
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}});
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acm.setPolicy(sharedFolderNode.getPath(), acls);
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ses.save();
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return item.getId();
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}
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public String removeSharingForUser(String user, Session ses, SharedFolder item) throws RepositoryException {
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String userDirPath = (String)item.getUsers().getMap().get(user);
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if (userDirPath==null) return null;
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String[] splitString = userDirPath.split("/");
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String parentDirectoryId = splitString[0];
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String directoryName = splitString[1];
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Node parentNode = ses.getNodeByIdentifier(parentDirectoryId);
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Node userNode = ses.getNode(String.format("%s/%s",parentNode.getPath(), directoryName));
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userNode.removeShare();
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accountingHandler.createUnshareFolder(directoryName, ses, parentNode, false);
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log.debug("directory removed for user {}",user);
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return parentDirectoryId;
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}
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private Node createUnsharedFolder(Session ses, Node destinationNode, String name, String description, String login) {
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FolderItem item = new FolderItem();
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Calendar now = Calendar.getInstance();
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item.setName(name);
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item.setTitle(name);
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item.setDescription(description);
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//item.setCreationTime(now);
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item.setHidden(false);
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item.setLastAction(ItemAction.CREATED);
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item.setLastModificationTime(now);
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item.setLastModifiedBy(login);
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item.setOwner(login);
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//to inherit hidden property
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//item.setHidden(destinationItem.isHidden());
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Node newNode = item2Node.getNode(ses, destinationNode, item);
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return newNode;
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}
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}
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