351 lines
14 KiB
Java
351 lines
14 KiB
Java
package org.gcube.data.access.storagehub;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.URL;
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import java.security.MessageDigest;
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import java.util.ArrayList;
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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 java.util.function.Predicate;
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import javax.jcr.Node;
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import javax.jcr.NodeIterator;
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import javax.jcr.PathNotFoundException;
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import javax.jcr.RepositoryException;
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import javax.jcr.Session;
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import javax.jcr.lock.Lock;
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import javax.jcr.lock.LockException;
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import javax.jcr.query.Query;
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import org.apache.commons.io.FilenameUtils;
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import org.apache.jackrabbit.util.ISO9075;
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import org.apache.jackrabbit.util.Text;
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import org.gcube.common.storagehub.model.Excludes;
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import org.gcube.common.storagehub.model.exceptions.BackendGenericError;
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import org.gcube.common.storagehub.model.exceptions.IdNotFoundException;
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import org.gcube.common.storagehub.model.exceptions.ItemLockedException;
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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.ExternalLink;
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import org.gcube.common.storagehub.model.items.FolderItem;
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import org.gcube.common.storagehub.model.items.GCubeItem;
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import org.gcube.common.storagehub.model.items.Item;
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import org.gcube.common.storagehub.model.items.RootItem;
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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.data.access.storagehub.accounting.AccountingHandler;
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import org.gcube.data.access.storagehub.handlers.items.Item2NodeConverter;
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import org.gcube.data.access.storagehub.handlers.items.Node2ItemConverter;
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import org.gcube.data.access.storagehub.handlers.items.builders.FolderCreationParameters;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class Utils {
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public final static String SERVICE_NAME = "home-library";
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public final static String SERVICE_CLASS = "org.gcube.portlets.user";
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private static final String FOLDERS_TYPE = "nthl:workspaceItem";
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private static final Logger logger = LoggerFactory.getLogger(Utils.class);
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public static String getSecurePassword(String user) throws Exception {
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String digest = null;
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try {
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MessageDigest md = MessageDigest.getInstance("MD5");
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byte[] hash = md.digest(user.getBytes("UTF-8"));
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//converting byte array to Hexadecimal String
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StringBuilder sb = new StringBuilder(2*hash.length);
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for(byte b : hash){
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sb.append(String.format("%02x", b&0xff));
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}
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digest = sb.toString();
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} catch (Exception e) {
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logger.error("error getting secure password",e);
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}
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return digest;
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}
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public static long getItemCount(Node parent, boolean showHidden, Class<? extends RootItem> nodeType) throws RepositoryException, BackendGenericError{
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return getItemList(parent, Excludes.ALL, null, showHidden, nodeType).size();
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}
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public static void acquireLockWithWait(Session ses, String nodePath, boolean isDeep, String login, int maxTries) throws RepositoryException, ItemLockedException {
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Lock lock = null;
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int tries = 0;
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while(lock==null && tries<=maxTries) {
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try {
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lock = ses.getWorkspace().getLockManager().lock(nodePath, isDeep, true, 0,login);
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logger.info("lock acquired(try n. {})", tries);
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}catch (LockException e) {
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try {
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if (maxTries>=tries) {
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int waitTime = (int)(Math.random()*5000);
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logger.info("lock NOT acquired, waiting (try n. {}) for {}", tries, waitTime);
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Thread.sleep(waitTime);
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}
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} catch (InterruptedException e1) {}
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tries++;
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}
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}
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if (lock==null) throw new ItemLockedException("the item is locked");
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}
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public static <T extends Item> List<T> searchByNameOnFolder(Session ses, String user, AuthorizationChecker authChecker, Node parent, List<String> excludes, Range range, boolean showHidden, boolean excludeTrashed, Class<? extends RootItem> nodeTypeToInclude, String nameParam) throws RepositoryException, BackendGenericError{
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String xpath = String.format("/jcr:root%s//element(*,nthl:workspaceItem)[jcr:like(fn:lower-case(@jcr:title), '%s')]",ISO9075.encodePath(parent.getPath()), nameParam.toLowerCase());
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//String query = String.format("SELECT * FROM [nthl:workspaceLeafItem] AS node WHERE ISDESCENDANTNODE('%s') ORDER BY node.[jcr:lastModified] DESC ",vreFolder.getPath());
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logger.trace("query for search is {}",xpath);
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long start = System.currentTimeMillis();
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@SuppressWarnings("deprecation")
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Query jcrQuery = ses.getWorkspace().getQueryManager().createQuery(xpath, Query.XPATH);
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NodeChildrenFilterIterator iterator = new NodeChildrenFilterIterator(jcrQuery.execute().getNodes());
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logger.trace("[SEARCH] real search took {} millis",(System.currentTimeMillis()-start));
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Predicate<Node> checker = new Predicate<Node>() {
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@Override
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public boolean test(Node t) {
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try {
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authChecker.checkReadAuthorizationControl(t.getSession(), user, t.getIdentifier());
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return true;
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} catch (UserNotAuthorizedException | BackendGenericError | RepositoryException e) {
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return false;
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}
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}
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};
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return getItemListFromNodeIterator(checker, iterator , excludes, range, showHidden, excludeTrashed, nodeTypeToInclude);
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}
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public static <T extends Item> List<T> getItemList(Node parent, List<String> excludes, Range range, boolean showHidden, Class<? extends RootItem> nodeTypeToInclude) throws RepositoryException, BackendGenericError{
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return getItemList(null, parent, excludes, range, showHidden, nodeTypeToInclude);
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}
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public static <T extends Item> List<T> getItemList(Predicate<Node> checker, Node parent, List<String> excludes, Range range, boolean showHidden, Class<? extends RootItem> nodeTypeToInclude) throws RepositoryException, BackendGenericError{
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logger.trace("getting children of node {}", parent.getIdentifier());
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long start = System.currentTimeMillis();
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NodeChildrenFilterIterator iterator = new NodeChildrenFilterIterator(parent);
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logger.trace("time to get iterator {}",(System.currentTimeMillis()-start));
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return getItemListFromNodeIterator(checker, iterator, excludes, range, showHidden, false, nodeTypeToInclude);
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}
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private static <T extends Item> List<T> getItemListFromNodeIterator(Predicate<Node> checker, NodeChildrenFilterIterator iterator, List<String> excludes, Range range, boolean showHidden, boolean excludeTrashed, Class<? extends RootItem> nodeTypeToInclude) throws RepositoryException, BackendGenericError{
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List<T> returnList = new ArrayList<T>();
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logger.trace("nodeType is {}",nodeTypeToInclude);
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int count =0;
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logger.trace("selected range is {}", range);
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Node2ItemConverter node2Item= new Node2ItemConverter();
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Set<String> duplicateId = new HashSet<String>();
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while (iterator.hasNext()){
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Node current = iterator.next();
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logger.trace("[SEARCH] evaluating node {} ",current.hasProperty(NodeProperty.TITLE.toString())? current.getProperty(NodeProperty.TITLE.toString()):current.getName());
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//REMOVE duplicate nodes, in case the indexes are not working
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if (duplicateId.contains(current.getIdentifier())) {
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logger.warn("duplicated node found");
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continue;
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}
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//EXCLUDES node from predicate
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if (checker!=null && !checker.test(current))
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continue;
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if (isToExclude(current, showHidden))
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continue;
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logger.trace("[SEARCH] current node not excluded {} ",current.hasProperty(NodeProperty.TITLE.toString())? current.getProperty(NodeProperty.TITLE.toString()):current.getName());
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if (range==null || (count>=range.getStart() && returnList.size()<range.getLimit())) {
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T item = node2Item.getFilteredItem(current, excludes, nodeTypeToInclude);
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if (item==null || (item.isTrashed() && excludeTrashed)) continue;
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returnList.add(item);
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}
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count++;
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duplicateId.add(current.getIdentifier());
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}
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return returnList;
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}
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private static boolean isToExclude(Node node, boolean showHidden) throws RepositoryException{
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return ((node.getName().startsWith("rep:") || (node.getName().startsWith("hl:"))) ||
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(!showHidden && node.hasProperty(NodeProperty.HIDDEN.toString()) && node.getProperty(NodeProperty.HIDDEN.toString()).getBoolean()) ||
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(node.getPrimaryNodeType().getName().equals(FOLDERS_TYPE) && Constants.FOLDERS_TO_EXLUDE.contains(node.getName())));
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}
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public static void copyStream(InputStream in, OutputStream out) throws IOException {
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byte[] buffer = new byte[2048];
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int readcount = 0;
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while ((readcount=in.read(buffer))!=-1) {
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out.write(buffer, 0, readcount);
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}
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}
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public static boolean hasSharedChildren(Node node) throws RepositoryException, BackendGenericError{
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Node2ItemConverter node2Item = new Node2ItemConverter();
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NodeChildrenFilterIterator children = new NodeChildrenFilterIterator(node);
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while (children.hasNext()) {
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Node child= children.next();
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if (node2Item.checkNodeType(child, SharedFolder.class)) return true;
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if (node2Item.checkNodeType(child, FolderItem.class) && hasSharedChildren(child)) return true;
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}
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return false;
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}
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public static String checkExistanceAndGetUniqueName(Session ses, Node destination, String name) throws BackendGenericError{
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try {
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destination.getNode(name);
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}catch(PathNotFoundException pnf) {
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return Text.escapeIllegalJcrChars(name);
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} catch (Exception e) {
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throw new BackendGenericError(e);
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}
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try {
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String filename = FilenameUtils.getBaseName(name);
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String ext = FilenameUtils.getExtension(name);
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String nameTocheck = ext.isEmpty()? String.format("%s(*)",filename): String.format("%s(*).%s",filename, ext);
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logger.trace("filename is {}, extension is {} , and name to check is {}", filename, ext, nameTocheck);
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NodeIterator ni = destination.getNodes(nameTocheck);
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int maxval = 0;
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while (ni.hasNext()) {
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Node n = ni.nextNode();
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int actual = Integer.parseInt(n.getName().replaceAll(String.format("%s\\((\\d*)\\).*", filename), "$1"));
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if (actual>maxval)
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maxval = actual;
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}
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String newName = ext.isEmpty()? String.format("%s(%d)", filename,maxval+1) : String.format("%s(%d).%s", filename,maxval+1, ext) ;
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return Text.escapeIllegalJcrChars(newName);
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} catch (Exception e) {
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throw new BackendGenericError(e);
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}
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}
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public static Node createFolderInternally(FolderCreationParameters params, AccountingHandler accountingHandler) throws StorageHubException {
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logger.debug("creating folder {} in {}", params.getName(), params.getParentId());
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Node destinationNode;
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try {
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destinationNode = params.getSession().getNodeByIdentifier(params.getParentId());
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}catch (RepositoryException e) {
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throw new IdNotFoundException(params.getParentId());
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}
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String uniqueName = Utils.checkExistanceAndGetUniqueName(params.getSession(), destinationNode, params.getName());
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FolderItem item = new FolderItem();
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Calendar now = Calendar.getInstance();
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item.setName(uniqueName);
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item.setTitle(uniqueName);
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item.setDescription(params.getDescription());
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//TODO: item.setExternalStorage();
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//item.setCreationTime(now);
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boolean hiddenDestNode= false;
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try {
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hiddenDestNode = destinationNode.getProperty(NodeProperty.HIDDEN.toString()).getBoolean();
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}catch (Throwable e) {}
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item.setHidden(params.isHidden() || hiddenDestNode);
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item.setLastAction(ItemAction.CREATED);
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item.setLastModificationTime(now);
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item.setLastModifiedBy(params.getUser());
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item.setOwner(params.getUser());
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item.setPublicItem(false);
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Node newNode = new Item2NodeConverter().getNode(destinationNode, item);
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if (accountingHandler!=null) {
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accountingHandler.createFolderAddObj(uniqueName, item.getClass().getSimpleName(), null, params.getSession(), params.getUser(), destinationNode, false);
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accountingHandler.createEntryCreate(item.getTitle(), params.getSession(), newNode, params.getUser(), false);
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}
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return newNode;
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}
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public static Node createURLInternally(Session ses, Node destinationNode, String name, URL value, String description, String login, AccountingHandler accountingHandler) throws BackendGenericError {
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String uniqueName = Utils.checkExistanceAndGetUniqueName(ses, destinationNode, name);
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ExternalLink item = new ExternalLink();
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Calendar now = Calendar.getInstance();
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item.setName(uniqueName);
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item.setTitle(uniqueName);
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item.setDescription(description);
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//item.setCreationTime(now);
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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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item.setPublicItem(false);
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item.setValue(value);
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try {
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item.setHidden(destinationNode.getProperty(NodeProperty.HIDDEN.toString()).getBoolean());
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} catch (Throwable e) {
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item.setHidden(false);
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}
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Node newNode = new Item2NodeConverter().getNode(destinationNode, item);
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if (accountingHandler!=null) {
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accountingHandler.createFolderAddObj(name, item.getClass().getSimpleName(), null, ses, login, destinationNode, false);
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accountingHandler.createEntryCreate(item.getTitle(), ses, newNode,login, false);
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}
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return newNode;
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}
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public static Node createGcubeItemInternally(Session ses, Node destinationNode, String name, String description, String login, GCubeItem gcubeItem, AccountingHandler accountingHandler) throws BackendGenericError {
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Calendar now = Calendar.getInstance();
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gcubeItem.setName(name);
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gcubeItem.setTitle(name);
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gcubeItem.setDescription(description);
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//item.setCreationTime(now);
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gcubeItem.setHidden(false);
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gcubeItem.setLastAction(ItemAction.CREATED);
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gcubeItem.setLastModificationTime(now);
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gcubeItem.setLastModifiedBy(login);
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gcubeItem.setOwner(login);
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//to inherit hidden property
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//item.setHidden(destinationItem.isHidden());
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Node newNode = new Item2NodeConverter().getNode(destinationNode, gcubeItem);
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//TODO: accounting for GCUBEITEM
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//accountingHandler.createFolderAddObj(name, item.getClass().getSimpleName(), null, ses, newNode, false);
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return newNode;
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}
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public static void setPropertyOnChangeNode(Node node, String login, ItemAction action) throws RepositoryException {
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node.setProperty(NodeProperty.LAST_MODIFIED.toString(), Calendar.getInstance());
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node.setProperty(NodeProperty.LAST_MODIFIED_BY.toString(), login);
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node.setProperty(NodeProperty.LAST_ACTION.toString(), action.name());
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}
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}
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