222 lines
7.6 KiB
Java
222 lines
7.6 KiB
Java
package org.gcube.informationsystem.resourceregistry.contexts;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.NoSuchElementException;
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import java.util.UUID;
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import org.gcube.common.authorization.utils.manager.SecretManagerProvider;
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import org.gcube.common.scope.impl.ScopeBean;
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import org.gcube.informationsystem.contexts.reference.entities.Context;
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import org.gcube.informationsystem.contexts.reference.relations.IsParentOf;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.contexts.ContextException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.contexts.ContextNotFoundException;
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import org.gcube.informationsystem.resourceregistry.contexts.security.AdminSecurityContext;
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import org.gcube.informationsystem.resourceregistry.contexts.security.SecurityContext;
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import org.gcube.informationsystem.resourceregistry.contexts.security.SecurityContext.PermissionMode;
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import org.gcube.informationsystem.resourceregistry.instances.base.ElementManagementUtility;
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import org.gcube.informationsystem.resourceregistry.utils.DBUtility;
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import org.gcube.informationsystem.resourceregistry.utils.UUIDUtility;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.arcadedb.graph.MutableVertex;
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import com.arcadedb.graph.Vertex;
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import com.arcadedb.graph.Vertex.DIRECTION;
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import com.arcadedb.query.sql.executor.Result;
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import com.arcadedb.query.sql.executor.ResultSet;
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import com.arcadedb.remote.RemoteDatabase;
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/**
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* @author Luca Frosini (ISTI - CNR)
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*/
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public class ContextUtility {
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private static final Logger logger = LoggerFactory.getLogger(ContextUtility.class);
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private Map<UUID,SecurityContext> contexts;
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private static ContextUtility contextUtility;
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public static ContextUtility getInstance() {
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if(contextUtility == null) {
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contextUtility = new ContextUtility();
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}
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return contextUtility;
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}
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private ContextUtility() {
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contexts = new HashMap<>();
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}
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public static String getCurrentContextFullName() {
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return SecretManagerProvider.instance.get().getContext();
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}
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public static SecurityContext getCurrentSecurityContext() throws ResourceRegistryException {
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String fullName = getCurrentContextFullName();
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if(fullName == null) {
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throw new ContextException("Null Token and Scope. Please set your token first.");
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}
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return ContextUtility.getInstance().getSecurityContextByFullName(fullName);
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}
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public static AdminSecurityContext getAdminSecurityContext() throws ResourceRegistryException {
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AdminSecurityContext adminSecurityContext = AdminSecurityContext.getInstance();
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return adminSecurityContext;
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}
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public synchronized void addSecurityContext(SecurityContext securityContext) {
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contexts.put(securityContext.getUUID(), securityContext);
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}
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public synchronized void addSecurityContext(String fullname, SecurityContext securityContext) {
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contexts.put(securityContext.getUUID(), securityContext);
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}
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public synchronized SecurityContext getSecurityContextByFullName(String fullName) throws ContextException {
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// ODatabaseDocument current = ContextUtility.getCurrentODatabaseDocumentFromThreadLocal();
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RemoteDatabase database = null;
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try {
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SecurityContext securityContext = null;
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logger.trace("Trying to get {} for {}", SecurityContext.class.getSimpleName(), fullName);
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UUID uuid = ServerContextCache.getInstance().getUUIDByFullName(fullName);
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if(uuid != null) {
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securityContext = contexts.get(uuid);
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}
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if(securityContext==null) {
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logger.trace("{} for {} is not in cache. Going to get it", SecurityContext.class.getSimpleName(),
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fullName);
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database = getAdminSecurityContext().getRemoteDatabase(PermissionMode.READER);
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MutableVertex contextVertex = getContextVertexByFullName(database, fullName);
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uuid = UUIDUtility.getUUID(contextVertex);
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securityContext = getSecurityContextByUUID(uuid, contextVertex);
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addSecurityContext(fullName, securityContext);
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}
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return securityContext;
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} catch(ContextException e) {
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throw e;
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} catch(Exception e) {
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throw new ContextException("Unable to retrieve Context UUID from current Context", e);
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} finally {
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if(database!=null) {
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database.close();
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}
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// if(current!=null) {
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// current.activateOnCurrentThread();
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// }
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}
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}
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public SecurityContext getSecurityContextByUUID(UUID uuid) throws ResourceRegistryException {
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return getSecurityContextByUUID(uuid, null);
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}
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public static RemoteDatabase getCurrentODatabaseDocumentFromThreadLocal() {
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RemoteDatabase current = null;
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try {
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// current = (RemoteDatabase) ODatabaseRecordThreadLocal.instance().get();
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}catch (Exception e) {
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// It is possible that there is no current ODatabaseDocument
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}
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return current;
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}
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private Vertex getContextVertexByUUID(UUID uuid) throws ResourceRegistryException {
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RemoteDatabase current = ContextUtility.getCurrentODatabaseDocumentFromThreadLocal();
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RemoteDatabase database = null;
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try {
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database = getAdminSecurityContext().getRemoteDatabase(PermissionMode.READER);
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Vertex vertex = DBUtility.getElementByUUID(database, Context.NAME, uuid,
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Vertex.class);
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return vertex;
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} finally {
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if(database!=null) {
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database.close();
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}
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// if(current!=null) {
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// current.activateOnCurrentThread();
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// }
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}
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}
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private SecurityContext getSecurityContextByUUID(UUID uuid, Vertex contextVertex) throws ResourceRegistryException {
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SecurityContext securityContext = contexts.get(uuid);
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if(securityContext == null) {
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securityContext = new SecurityContext(uuid);
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try {
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if(contextVertex == null) {
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contextVertex = getContextVertexByUUID(uuid);
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}
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Vertex parentVertex = contextVertex.getVertices(DIRECTION.IN, IsParentOf.NAME).iterator().next();
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if(parentVertex != null) {
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UUID parentUUID = UUIDUtility.getUUID(parentVertex);
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securityContext.setParentSecurityContext(getSecurityContextByUUID(parentUUID, parentVertex));
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}
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} catch(NoSuchElementException e) {
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// No parent
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}
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contexts.put(uuid, securityContext);
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}
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return securityContext;
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}
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/*
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protected UUID getContextUUIDFromFullName(String fullName) throws ResourceRegistryException {
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OVertex contextVertex = getContextVertexByFullName(fullName);
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return Utility.getUUID(contextVertex);
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}
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*/
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private MutableVertex getContextVertexByFullName(RemoteDatabase database , String fullName) throws ResourceRegistryException {
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logger.trace("Going to get {} {} with full name '{}'", Context.NAME, Vertex.class.getSimpleName(), fullName);
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ScopeBean scopeBean = new ScopeBean(fullName);
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String name = scopeBean.name();
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// TODO Rewrite better query. This query works because all the scope parts has a different name
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String select = "SELECT FROM " + Context.class.getSimpleName() + " WHERE " + Context.NAME_PROPERTY + " = :name";
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Map<String, String> map = new HashMap<>();
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map.put("name", name);
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ResultSet resultSet = database.command("sql", select, map);
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if(resultSet == null || !resultSet.hasNext()) {
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throw new ContextNotFoundException("Error retrieving context with name " + fullName);
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}
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Result result = resultSet.next();
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MutableVertex context = (MutableVertex) ElementManagementUtility.getElementFromOptional(result.getVertex());
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logger.trace("Context Representing Vertex : {}", DBUtility.getAsStringForLogging(context));
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if(resultSet.hasNext()) {
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throw new ContextNotFoundException("Found more than one context with name " + name
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+ "but required the one with path" + fullName + ". Please Reimplement the query");
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}
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return context;
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}
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}
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