315 lines
11 KiB
Java
315 lines
11 KiB
Java
package org.gcube.data.access.storagehub.services;
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import java.security.Principal;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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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.NodeIterator;
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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.DELETE;
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import javax.ws.rs.GET;
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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.QueryParam;
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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 javax.ws.rs.core.Response;
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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.acls.ACL;
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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.items.VreFolder;
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import org.gcube.common.storagehub.model.types.ACLList;
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import org.gcube.data.access.storagehub.PathUtil;
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import org.gcube.data.access.storagehub.StorageHubAppllicationManager;
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import org.gcube.data.access.storagehub.handlers.CredentialHandler;
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import org.gcube.data.access.storagehub.handlers.UnshareHandler;
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import org.gcube.data.access.storagehub.handlers.items.Node2ItemConverter;
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import org.gcube.smartgears.annotations.ManagedBy;
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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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@ManagedBy(StorageHubAppllicationManager.class)
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public class ACLManager extends Impersonable {
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private static final Logger log = LoggerFactory.getLogger(ACLManager.class);
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RepositoryInitializer repository = StorageHubAppllicationManager.repository;
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@RequestScoped
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@PathParam("id")
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String id;
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@Inject
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PathUtil pathUtil;
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@Context
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ServletContext context;
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@Inject UnshareHandler unshareHandler;
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@Inject Node2ItemConverter node2Item;
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/**
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* returns the AccessType for all the users in a shared folder
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*
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* @exception {@link RepositoryException} when a generic jcr error occurs
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* @exception {@link UserNotAuthorizedException} when the caller is not authorized to access to the shared folder
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*/
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@GET
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@Path("{id}/acls")
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@Produces(MediaType.APPLICATION_JSON)
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public ACLList getACL() {
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InnerMethodName.instance.set("getACLById");
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Session ses = null;
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List<ACL> acls = new ArrayList<>();
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try{
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ses = repository.getRepository().login(CredentialHandler.getAdminCredentials(context));
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authChecker.checkReadAuthorizationControl(ses,id);
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String path = ses.getNodeByIdentifier(id).getPath();
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log.info("checking acces for path {}",path);
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JackrabbitAccessControlList accessControlList = AccessControlUtils.getAccessControlList(ses, path );
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for (AccessControlEntry aclEntry : accessControlList.getAccessControlEntries()) {
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ACL acl = new ACL();
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acl.setPricipal(aclEntry.getPrincipal().getName());
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List<AccessType> types = new ArrayList<>();
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for (Privilege priv : aclEntry.getPrivileges())
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try {
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types.add(AccessType.fromValue(priv.getName()));
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}catch (Exception e) {
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log.warn(priv.getName()+" cannot be mapped to AccessTypes",e);
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}
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acl.setAccessTypes(types);
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acls.add(acl);
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}
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}catch(RepositoryException re){
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log.error("jcr error getting acl", re);
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GXOutboundErrorResponse.throwException(new BackendGenericError("jcr error getting acl", re));
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}catch(StorageHubException she ){
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log.error(she.getErrorMessage(), she);
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GXOutboundErrorResponse.throwException(she, Response.Status.fromStatusCode(she.getStatus()));
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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 new ACLList(acls);
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}
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/**
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* Set a new AccessType for a user in a shared folder or VRE folder
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*
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*
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* @param String user
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* @param accessType accessType
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*
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* @exception {@link RepositoryException} when a generic jcr error occurs
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* @exception {@link UserNotAuthorizedException} when the caller is not ADMINISTRATOR of the shared folder
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* @exception {@link InvalidCallParameters} when the folder is not shared with the specified user
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* @exception {@link InvalidItemException} when the folder is not share
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*/
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@PUT
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@Consumes(MediaType.MULTIPART_FORM_DATA)
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@Path("{id}/acls")
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public void setACL(@FormDataParam("user") String user, @FormDataParam("access") AccessType accessType) {
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InnerMethodName.instance.set("setACLById");
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Session ses = null;
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try{
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ses = repository.getRepository().login(CredentialHandler.getAdminCredentials(context));
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Node node = ses.getNodeByIdentifier(id);
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Item item = node2Item.getItem(node, Excludes.ALL);
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if (!(item instanceof SharedFolder))
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throw new InvalidItemException("the item is not a shared folder");
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if (item.getOwner().equals(user))
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throw new UserNotAuthorizedException("owner acl cannot be changed");
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authChecker.checkAdministratorControl(ses, (SharedFolder) item);
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SharedFolder folder = ((SharedFolder)item);
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if (folder.isVreFolder()) {
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if (accessType==AccessType.ADMINISTRATOR) throw new InvalidCallParameters("a VRE admin cannot be changed with this method");
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if (!user.equals(folder.getTitle())) throw new InvalidCallParameters("the groupId in the argument is different to the one of the VREFolder");
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AccessControlManager acm = ses.getAccessControlManager();
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JackrabbitAccessControlList acls = AccessControlUtils.getAccessControlList(acm, folder.getPath());
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Privilege[] userPrivileges = new Privilege[] { acm.privilegeFromName(accessType.getValue()) };
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AccessControlEntry aceToDelete = null;;
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Principal principal = AccessControlUtils.getPrincipal(ses, user);
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for (AccessControlEntry ace : acls.getAccessControlEntries())
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if (ace.getPrincipal().equals(principal)) {
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aceToDelete = ace;
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break;
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}
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if (aceToDelete!= null)
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acls.removeAccessControlEntry(aceToDelete);
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acls.addAccessControlEntry(principal, userPrivileges);
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acm.setPolicy(folder.getPath(), acls);
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ses.save();
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} else {
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NodeIterator sharedSet = node.getSharedSet();
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boolean found = false;
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while (sharedSet.hasNext() && !found) {
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Node current = sharedSet.nextNode();
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if (current.getPath().startsWith(pathUtil.getWorkspacePath(user).toPath()))
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found = true;
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}
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if (!found)
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throw new InvalidCallParameters("shared folder with id "+item.getId()+" is not shared with user "+user);
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String path = node.getPath();
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AccessControlManager acm = ses.getAccessControlManager();
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JackrabbitAccessControlList acls = AccessControlUtils.getAccessControlList(acm, path);
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Privilege[] userPrivileges = new Privilege[] { acm.privilegeFromName(accessType.getValue()) };
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AccessControlEntry aceToDelete = null;;
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Principal principal = AccessControlUtils.getPrincipal(ses, user);
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for (AccessControlEntry ace : acls.getAccessControlEntries())
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if (ace.getPrincipal().equals(principal)) {
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aceToDelete = ace;
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break;
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}
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if (aceToDelete!= null)
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acls.removeAccessControlEntry(aceToDelete);
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acls.addAccessControlEntry(principal, userPrivileges);
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acm.setPolicy(path, acls);
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ses.save();
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}
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}catch(RepositoryException re){
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log.error("jcr error extracting archive", re);
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GXOutboundErrorResponse.throwException(new BackendGenericError("jcr error setting acl", re));
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}catch(StorageHubException she ){
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log.error(she.getErrorMessage(), she);
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GXOutboundErrorResponse.throwException(she, Response.Status.fromStatusCode(she.getStatus()));
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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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}
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/**
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* remove right for a user only on Shared folder
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*
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*
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* @param String user
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*
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*
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* @exception {@link RepositoryException} when a generic jcr error occurs
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* @exception {@link UserNotAuthorizedException} when the caller is not ADMINISTRATOR of the shared folder
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* @exception {@link InvalidCallParameters} when the folder is not shared with the specified user
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* @exception {@link InvalidItemException} when the folder is not share
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*/
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@DELETE
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@Consumes(MediaType.TEXT_PLAIN)
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@Path("{id}/acls/{user}")
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public void removeACL(@PathParam("user") String user) {
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InnerMethodName.instance.set("removeACLById");
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Session ses = null;
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try{
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ses = repository.getRepository().login(CredentialHandler.getAdminCredentials(context));
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Node node = ses.getNodeByIdentifier(id);
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Item item = node2Item.getItem(node, Excludes.ALL);
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if (!(item instanceof SharedFolder))
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throw new InvalidItemException("the item is not a shared folder");
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if (item instanceof VreFolder || ((SharedFolder) item).isVreFolder())
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throw new InvalidCallParameters("acls in vreFolder cannot be removed with this method");
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authChecker.checkAdministratorControl(ses, (SharedFolder) item);
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unshareHandler.unshare(ses, Collections.singleton(user), node, currentUser);
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}catch(RepositoryException re){
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log.error("jcr error extracting archive", re);
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GXOutboundErrorResponse.throwException(new BackendGenericError("jcr error setting acl", re));
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}catch(StorageHubException she ){
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log.error(she.getErrorMessage(), she);
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GXOutboundErrorResponse.throwException(she, Response.Status.fromStatusCode(she.getStatus()));
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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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}
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@GET
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@Path("{id}/acls/write")
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public Boolean canWriteInto() {
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InnerMethodName.instance.set("canWriteIntoFolder");
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Session ses = null;
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Boolean canWrite = false;
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try{
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ses = repository.getRepository().login(CredentialHandler.getAdminCredentials(context));
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Node node = ses.getNodeByIdentifier(id);
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Item item = node2Item.getItem(node, Excludes.ALL);
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if (!(item instanceof FolderItem))
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throw new InvalidItemException("this method can be applied only to folder");
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try {
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authChecker.checkWriteAuthorizationControl(ses, id, true);
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}catch (UserNotAuthorizedException e) {
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return false;
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}
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return true;
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}catch(RepositoryException re){
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log.error("jcr error getting acl", re);
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GXOutboundErrorResponse.throwException(new BackendGenericError("jcr error getting acl", re));
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}catch(StorageHubException she ){
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log.error(she.getErrorMessage(), she);
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GXOutboundErrorResponse.throwException(she, Response.Status.fromStatusCode(she.getStatus()));
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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 canWrite;
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}
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}
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