base.jee.api.sql.RecentLogEntriesByPerson Maven / Gradle / Ivy

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/**
 * Creative commons Attribution-NonCommercial license.
 *
 * http://creativecommons.org/licenses/by-nc/2.5/au/deed.en_GB
 *
 * NO WARRANTY IS GIVEN OR IMPLIED, USE AT YOUR OWN RISK.
 */
package base.jee.api.sql;

import base.Query;
import base.jee.Constants;
import base.jee.api.model.AuditLogEntry;
import base.security.PermissionException;
import base.security.User;

import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Date;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.UUID;

import static base.jee.api.sql.util.Log.log;

public class RecentLogEntriesByPerson extends Query {

	private SqlAPI api;
	private User user;
	private UUID person;
	private long limit;
	private boolean debug;

	public RecentLogEntriesByPerson(SqlAPI api, User user, UUID person, boolean debug, long limit) throws PermissionException {
		this.api = api;
		this.user = user;
		this.person = person;
		this.limit = limit;
		this.debug = debug;

		if(api == null) {
			throw new IllegalArgumentException("\"api\" parameter must not be null.");
		}
		if(user == null || !user.isAuthenticated()) {
			throw new PermissionException(this.getClass().getSimpleName(), user, "Requires an authenticated user.", "");
		}
		if(person == null) {
			throw new IllegalArgumentException("Please specify person uuid.");
		}
		if(limit == 0) {
			throw new IllegalArgumentException("Please specify a limit");
		}
		if(limit > 20000) {
			throw new IllegalArgumentException("Limit must be less than 20,000.");
		}
	}

	public RecentLogEntriesByPerson() {
	}

	@Override
	public Query newWithParameters(Map parameters) throws PermissionException {
		return new RecentLogEntriesByPerson(
				(SqlAPI)parameters.get("api"),
				(User)parameters.get("user"),
				UUID.fromString((String)parameters.get("person")),
				parameters.get("debug") != null && ((String)parameters.get("debug")).equalsIgnoreCase("true"),
				Integer.parseInt((String)parameters.get("limit")));
	}

	public List execute() throws IOException {
		List results = new LinkedList<>();
		Connection c = null;
		PreparedStatement s = null;
		ResultSet r = null;

		try {
			c = api.getDataSource().getConnection();
			c.setAutoCommit(false);

			if(!user.hasRole(Constants.AUDIT_ROLE)) {
				log(c, "WARN", user, "Permission denied invoking: " + RecentLogEntriesByPerson.class.getSimpleName() + " " + getJsonParameters());
				c.commit();
				throw new PermissionException(this.getClass().getSimpleName(), user, "You do not have permission to access audit information.", Constants.AUDIT_ROLE);
			}

			s = c.prepareStatement(
					"select e.event_time,e.level,e.person_uuid,e.message,p.first_name,p.last_name,e.ip "+
					"from audit_event e join person p on (e.person_uuid = p.uuid) "+
					"where e.person_uuid = ? " +
					(debug?"":"and e.level!='DEBUG' ") +
					"order by e.event_time desc " +
					"limit " + limit);
			s.setString(1, person.toString());
			r = s.executeQuery();
			while(r.next()) {
				results.add(new AuditLogEntry(new Date(r.getLong(1)), r.getString(2), nullableUuid(r.getString(3)), r.getString(5), r.getString(6), r.getString(4), r.getString(7)));
			}
			r.close();
			r = null;
			s.close();
			s = null;
			c.commit();
			c.close();
			c = null;
		} catch(SQLException e) {
			throw new IOException(e);
		} finally {
			if(r != null) { try { r.close(); } catch(SQLException e) {} }
			if(s != null) { try { s.close(); } catch(SQLException e) {} }
			if(c != null) {
				try { c.rollback(); } catch (SQLException e) { }
				try { c.close(); } catch (SQLException e) { }
			}
		}
		return results;
	}

	@Override
	public String getJsonParameters() {
		return "{" +
				"}";
	}

	private UUID nullableUuid(String uuid) {
		if(uuid == null || uuid.length() == 0) {
			return null;
		}
		return UUID.fromString(uuid);
	}

}